santo gantry crane
2013年11月29日星期五
Loader shovel dug and loading and unloading material is implemented through the movement of the working device
Loader shovel dug and loading and unloading material is implemented
through the movement of the working device. By the typical working
equipment of loader bucket, movable arm, connecting rod, rocker arm, and
turned the bucket steel crane, movable arm oil cylinder,hoist gantry crane. The whole
device is hinged on the frame. Bucket bucket cylinder through the
connecting rod and rocker arm and articulated, for loading and unloading
of materials. Movable arm with frame, movable arm cylinder hinged, used
to hoist bucket.
2013年9月8日星期日
The market for the development of electric crane hoisted What?
Nowadays there are many products on the market is relatively good, because every product on the market developments are relatively hard, and more efforts to develop products on the market the more attractive, so its production the process of the electric overhead traveling
hoist crane is more optimistic, and now on the market for electric overhead crane is more concerned about the development, and even some of the machinery is quite confident of its business, and I hope it is getting better and better development, so now on the market for its analysis of the development of electric crane hoisted What are the main?
1 Talent
Today, when the manufacturers in their production of electric overhead crane when the most important thing is to rely on the power of talent condensed because of the strength of cohesion is relatively large, a development of enterprises in the process of talent is the most need to have the If no talent then the company or the manufacturer of the product is difficult to produce, which explains professionals or the use of an electric hoist gantry crane , but in the selection process of the professionals is the need cautious.
(2) Equipment
When the electric overhead traveling crane manufacturers in the process of its production equipment is often more crucial thing, because electric crane hoisted on the market is a kind of relatively easy to use products, so for the time of its production equipment is relatively there is a demand.
This is the market for the development of electric eot crane hoisted the approximate analysis done.
1 Talent
Today, when the manufacturers in their production of electric overhead crane when the most important thing is to rely on the power of talent condensed because of the strength of cohesion is relatively large, a development of enterprises in the process of talent is the most need to have the If no talent then the company or the manufacturer of the product is difficult to produce, which explains professionals or the use of an electric hoist gantry crane , but in the selection process of the professionals is the need cautious.
(2) Equipment
When the electric overhead traveling crane manufacturers in the process of its production equipment is often more crucial thing, because electric crane hoisted on the market is a kind of relatively easy to use products, so for the time of its production equipment is relatively there is a demand.
This is the market for the development of electric eot crane hoisted the approximate analysis done.
Electric double beam crane how developed?
Now on the market role of the electric double girder
Steel crane is relatively large, it uses a dual beam material, generally single beam, so it is a little bit special products for this product is relatively in need because such products on the market is relatively rare, so use them when are generally more careful, because extend the life of the other, which is quite good, and now electric double girder crane is mainly how developed it?
1 Product Updates
When the electric double girder crane in the process of development is the need to constantly update their products, and only in its case constantly updated in order to better display quality products in its production process often products is relatively high, and now he's more concerned about the development of the market, but also have a lot of machinery is relatively optimistic about its business in the development process of their continued support and help, and product updates only a part.
(2) quality assurance
Now, with the electric double girder bridge crane continues to develop, in terms of quality has Nana fill a good guarantee, as long as there are points to ensure users will use them more confidence, which is the product during development process a little more attention, but in terms of quality is more valued.
This is the electric double girder hoist gantry crane on the market gradually developed factor.
1 Product Updates
When the electric double girder crane in the process of development is the need to constantly update their products, and only in its case constantly updated in order to better display quality products in its production process often products is relatively high, and now he's more concerned about the development of the market, but also have a lot of machinery is relatively optimistic about its business in the development process of their continued support and help, and product updates only a part.
(2) quality assurance
Now, with the electric double girder bridge crane continues to develop, in terms of quality has Nana fill a good guarantee, as long as there are points to ensure users will use them more confidence, which is the product during development process a little more attention, but in terms of quality is more valued.
This is the electric double girder hoist gantry crane on the market gradually developed factor.
2013年9月6日星期五
Forging crane
Forging
hoist gantry crane generally have two cars, a car-based platform, designed for hanging in the forging process billets and slabs hanging flip the turn plate (Flipper) use. Another deputy trolley sleeve ingot is used to support the weight. Sets ingot is forged in order to grip and balance during ingot (or forging) weight tool. According to process requirements, two car on the track in their respective work.
Traveling mechanism set up on the main bridge. Depending on the wheel of the weight, with 6-24, or more. In order to facilitate the driver and hammer (hydraulic) with the operator, usually hanging in the cab allows the driver head-forging position, and a damping device. In order to prevent radiant heat forging effect on drivers, using thermal insulation operating room, and in the indoor air-cooler.
This overhead gantry crane main and auxiliary car roughly the same speed, so that the main and auxiliary car when coordinated to work together. Main small car is equipped with cable reel, cable conductor to manipulate through hanging on a hook on the turn steel machine. There is no hook to prevent the hook in the forging process freely rotating fixtures. In order to reduce the impact load forging the impact of the relevant institutions in turning steel machine parts hanging a spring buffer device.
Forging bridge gantry crane from the weight, there are currently 20/5, 80/30, 125/30, 200/80 t and so are several.
Traveling mechanism set up on the main bridge. Depending on the wheel of the weight, with 6-24, or more. In order to facilitate the driver and hammer (hydraulic) with the operator, usually hanging in the cab allows the driver head-forging position, and a damping device. In order to prevent radiant heat forging effect on drivers, using thermal insulation operating room, and in the indoor air-cooler.
This overhead gantry crane main and auxiliary car roughly the same speed, so that the main and auxiliary car when coordinated to work together. Main small car is equipped with cable reel, cable conductor to manipulate through hanging on a hook on the turn steel machine. There is no hook to prevent the hook in the forging process freely rotating fixtures. In order to reduce the impact load forging the impact of the relevant institutions in turning steel machine parts hanging a spring buffer device.
Forging bridge gantry crane from the weight, there are currently 20/5, 80/30, 125/30, 200/80 t and so are several.
Crane safety working conditions
To ensure the safety of the crane work,
bridge crane design should meet the following three basic requirements:
First, the metal structure and mechanical parts should have sufficient strength, stiffness and flexural capability.
First asked Crane parts and metal structures under load does not destroy, that is to meet the strength requirements. Static strength calculation is the most basic calculations. Stresses the importance of general circulation or fewer parts, only for static strength calculation. Parts or components subjected to cyclic stresses, in addition to fatigue calculation, but also should be the peak load for static strength calculation. For complex stress state and other parts of wire rope, in order to simplify the calculation, usually only by major load, mainly deformed shape, a higher safety factor for static strength calculation.
But alone is not always guaranteed to work damage, such as by an excessive load deformation member will also affect the normal operation. Therefore, you must also request loads, components produced by deformation should be within the allowable range, that with proper rigidity.
Slender rod suddenly bent or pressed steel structures localized buckling in statically determinate structures may result in variable geometry structure. Its original equilibrium state becomes unstable equilibrium, so that the failure of structural parts and components, it will also result in the destruction of the hoist gantry crane , thus satisfying the requirement to meet the stability is also very important.
Second, the machine must have the necessary stability against overturning.
Third, the former winter has to meet the requirements of the job performance power brakes provide the necessary braking torque.
Determine the characteristics of the crane's work load randomness, while the bridge gantry crane is used in deterministic approach, so for complex changes in actual load, only with simple theoretical calculations and experiments and experiences combined calculation to determine by knowledge thus obtained approximate actual load, often called load calculation.
First, the metal structure and mechanical parts should have sufficient strength, stiffness and flexural capability.
First asked Crane parts and metal structures under load does not destroy, that is to meet the strength requirements. Static strength calculation is the most basic calculations. Stresses the importance of general circulation or fewer parts, only for static strength calculation. Parts or components subjected to cyclic stresses, in addition to fatigue calculation, but also should be the peak load for static strength calculation. For complex stress state and other parts of wire rope, in order to simplify the calculation, usually only by major load, mainly deformed shape, a higher safety factor for static strength calculation.
But alone is not always guaranteed to work damage, such as by an excessive load deformation member will also affect the normal operation. Therefore, you must also request loads, components produced by deformation should be within the allowable range, that with proper rigidity.
Slender rod suddenly bent or pressed steel structures localized buckling in statically determinate structures may result in variable geometry structure. Its original equilibrium state becomes unstable equilibrium, so that the failure of structural parts and components, it will also result in the destruction of the hoist gantry crane , thus satisfying the requirement to meet the stability is also very important.
Second, the machine must have the necessary stability against overturning.
Third, the former winter has to meet the requirements of the job performance power brakes provide the necessary braking torque.
Determine the characteristics of the crane's work load randomness, while the bridge gantry crane is used in deterministic approach, so for complex changes in actual load, only with simple theoretical calculations and experiments and experiences combined calculation to determine by knowledge thus obtained approximate actual load, often called load calculation.
Crane hook material
Crane hook material requires a high strength, toughness and ductility, there is no danger of sudden rupture. Single high strength material and defects usually very sensitive to cracks and higher strength, the greater the likelihood of sudden rupture. Therefore, it is widely used
gantry crane hook material low carbon steel and low carbon steel to manufacture.
According to GB10051-88 "lifting hooks" requirement, forging hook material should be used DG20, DG20Mn, DG34CrMo, DG34CrNiMo, DG34CR2Ni2Mo steel manufacturing and other models, especially DG34CrMo, DG34CrNiMo, DG34CR2Ni2Mo alloy steel, because it contains certain content Cr, Ni , Mo element, can inhibit the austenite grain growth, making it a strong increase;bridge gantry crane during tempering, but also has three elements due to intensity decreased much, but elongation and impact toughness has enhanced many, Given containing Cr, Ni, Mo alloy elements have high strength, toughness and good, use it to create a relatively small hook size, carrying capacity is high.
In order to ensure that the manufacturing out of the hook does not occur in the life of a hard change, aging embrittlement, must ensure that the content of aluminum in the steel, to International Organization for Standardization ISO standard 0.02%.
Chip hook is generally used for large tonnage or a hot place by strong, he is usually with a thickness not less than 20mm of A3, 20 or 16Mn steel plate. Chip hook generally not a sudden rupture and damage because of breakage caused by defects confined to individual plates,hoist gantry crane and the remaining plate can still support the lifting of individual damaged plate can be replaced, and thus greater than the safety hook forging sex.
According to GB10051-88 "lifting hooks" requirement, forging hook material should be used DG20, DG20Mn, DG34CrMo, DG34CrNiMo, DG34CR2Ni2Mo steel manufacturing and other models, especially DG34CrMo, DG34CrNiMo, DG34CR2Ni2Mo alloy steel, because it contains certain content Cr, Ni , Mo element, can inhibit the austenite grain growth, making it a strong increase;bridge gantry crane during tempering, but also has three elements due to intensity decreased much, but elongation and impact toughness has enhanced many, Given containing Cr, Ni, Mo alloy elements have high strength, toughness and good, use it to create a relatively small hook size, carrying capacity is high.
In order to ensure that the manufacturing out of the hook does not occur in the life of a hard change, aging embrittlement, must ensure that the content of aluminum in the steel, to International Organization for Standardization ISO standard 0.02%.
Chip hook is generally used for large tonnage or a hot place by strong, he is usually with a thickness not less than 20mm of A3, 20 or 16Mn steel plate. Chip hook generally not a sudden rupture and damage because of breakage caused by defects confined to individual plates,hoist gantry crane and the remaining plate can still support the lifting of individual damaged plate can be replaced, and thus greater than the safety hook forging sex.
2013年8月30日星期五
Lifting Mo as "Sky Crawlers"
in the city to carry out a comprehensive building site "Hundred Days Campaign" when BMCC construction quality supervision station on Monday and start another one easily overlooked "Air killer" - building site construction crane hanging machinery monitoring and inspectors.hoist gantry crane So far, the city's more than 30 equipment rental, installation companies and lifting all construction facilities from now until the end of January next year, will be monitored as a key object of special inspectors.
According to reports, the recent construction site supervision and inspection of lifting equipment was found in breaches:hoist crane Partial demolition companies in the "Hefei Construction tower crane safety management manual" (people and goods elevators) installation acceptance, maintenance, fill in the non-standard data fill ambiguous; special equipment operating certificate, some companies still hold false workers induction phenomenon ...... in response,jib crane the station will be in the future supervision and inspection to increase penalties for operating workers doesn document type requirements for demolition phenomenon, suggested issuing agency revoked qualification certificate.
According to reports, the recent construction site supervision and inspection of lifting equipment was found in breaches:hoist crane Partial demolition companies in the "Hefei Construction tower crane safety management manual" (people and goods elevators) installation acceptance, maintenance, fill in the non-standard data fill ambiguous; special equipment operating certificate, some companies still hold false workers induction phenomenon ...... in response,jib crane the station will be in the future supervision and inspection to increase penalties for operating workers doesn document type requirements for demolition phenomenon, suggested issuing agency revoked qualification certificate.
How to lubricate cranes
To lubricate the crane main role is to control friction and reduce wear and reduces temperature to prevent rusting parts,overhead gantry crane forming seals. These effects interdependent and mutually influence. If not effectively controlled friction, can not achieve the purpose of reducing wear, will generate a lot of frictional heat, which leads to high mechanical, thereby undermining the friction surface lubrication and lubricating material.
Where there shaft hole with the location and relative motion of the mechanical parts of the friction surface lubrication should be carried out on a regular basis. All such forms of cranes.hoist gantry crane As a result of the different conditions, the requirements of the lubrication points are the same. For all types of cranes and different parts of the lubrication points are required in accordance with the instructions of the periodic maintenance and periodic inspections carried out and the use of qualified its lubricating grease to the normal operation of the machine, to overcome premature wear. Such as the use of substandard substitutes, will cause the machinery accidents, damage to equipment parts directly affect the safety in production. overhead gantry crane It is not difficult to see, lubrication in the care and maintenance of lifting equipment plays a very important role, and lubricating materials selection and use, but also directly affect the lubricating effect.
Where there shaft hole with the location and relative motion of the mechanical parts of the friction surface lubrication should be carried out on a regular basis. All such forms of cranes.hoist gantry crane As a result of the different conditions, the requirements of the lubrication points are the same. For all types of cranes and different parts of the lubrication points are required in accordance with the instructions of the periodic maintenance and periodic inspections carried out and the use of qualified its lubricating grease to the normal operation of the machine, to overcome premature wear. Such as the use of substandard substitutes, will cause the machinery accidents, damage to equipment parts directly affect the safety in production. overhead gantry crane It is not difficult to see, lubrication in the care and maintenance of lifting equipment plays a very important role, and lubricating materials selection and use, but also directly affect the lubricating effect.
General safety check hoist drum
Rope hoist drum by pressing action, but also by causing the bending and torsion wire effect,bridge gantry crane and plays a major role in extrusion. Cracks have occurred since the roll, the roll indentation rope accident, so check out the drum have cracks should be scrapped, the spool shaft by bending and shear stresses, should be discarded if cracks are found, otherwise there accidents can happen off-axis; reel rope groove wear depth should not exceed 2mm, when more than can be re-grooving, but roll wall thickness of not less than 80% of the original; wheel up and down without cracks, screw on connections to tighten.
Wire rope on the drum groove wandering off overhaul, when the wire rope groove angle is relatively large, the rope will wear groove edges or even quit, causing severe rope wear. For relatively rope wire rope groove drum grooves to allow deflection of 4 ~ 5 °, when more than 6 °,hoist gantry crane the rope may quit, the general common cause is a hook pulley from the roll distance is too small, then do the appropriate adjustments. May be due to the drum pulley hook skew safe position, may have inclined deflection caused by the goods leaving the rope hanging quit.
In addition, new for wire rope, if twisted rope wrapped around the roll stiffness (due to roll on the wooden prehensile) did not relax, but also make rope quit, and even crossing a rope pulley correct together, in order to prevent the accident, you can put suspended by rope into a disk gradually liberalized straightened,bridge crane twisting stiffness can be completely gone.
Wire rope on the drum groove wandering off overhaul, when the wire rope groove angle is relatively large, the rope will wear groove edges or even quit, causing severe rope wear. For relatively rope wire rope groove drum grooves to allow deflection of 4 ~ 5 °, when more than 6 °,hoist gantry crane the rope may quit, the general common cause is a hook pulley from the roll distance is too small, then do the appropriate adjustments. May be due to the drum pulley hook skew safe position, may have inclined deflection caused by the goods leaving the rope hanging quit.
In addition, new for wire rope, if twisted rope wrapped around the roll stiffness (due to roll on the wooden prehensile) did not relax, but also make rope quit, and even crossing a rope pulley correct together, in order to prevent the accident, you can put suspended by rope into a disk gradually liberalized straightened,bridge crane twisting stiffness can be completely gone.
Construction Machinery engine of growth remains strong, the acceleration of urbanization positive industry outlook
Sales booming with construction machinery enterprises operating situation in stark contrast to the trend of the stock of construction machinery sector remains in the doldrums this year.hoist gantry crane A researcher believes that as the scale of investment in fixed assets and a strong positive correlation between cyclical industry, taking into account the scale of investment and real estate control policies sharply increasing the degree of market doubts about the prospects of construction machinery.
In the Golden State Securities researcher Dong Yaguang opinion, the process of urbanization and growth space determines the advancing speed of engineering machinery industry development prospects. Over the past nine years, China's urbanization rate increased by nearly 10 percentage points, the current urbanization rate is less than 50%. Therefore, to achieve in 2020 nearly 60% of the target, there is a lot of infrastructure needs, improve. For data to estimate the urbanization rate increased by one percentage point each, will add 6.6 trillion in investment demand.bridge gantry crane The accelerated process of urbanization construction machinery industry will provide long-term stable development momentum.
GF Securities researcher Qiu Shiliang believe that China's construction machinery industry is growing late, industry, the economy in the short term may be peaking. He predicted that after three years,gantry crane China's construction machinery pattern will initially laid, then the industry will enter a period of slow growth.
In the Golden State Securities researcher Dong Yaguang opinion, the process of urbanization and growth space determines the advancing speed of engineering machinery industry development prospects. Over the past nine years, China's urbanization rate increased by nearly 10 percentage points, the current urbanization rate is less than 50%. Therefore, to achieve in 2020 nearly 60% of the target, there is a lot of infrastructure needs, improve. For data to estimate the urbanization rate increased by one percentage point each, will add 6.6 trillion in investment demand.bridge gantry crane The accelerated process of urbanization construction machinery industry will provide long-term stable development momentum.
GF Securities researcher Qiu Shiliang believe that China's construction machinery industry is growing late, industry, the economy in the short term may be peaking. He predicted that after three years,gantry crane China's construction machinery pattern will initially laid, then the industry will enter a period of slow growth.
2013年8月29日星期四
"Large crane install security monitoring and management system implementation plan" ( 2 )
Fourth, the main work steps and content
( A ) organizing the investigation , find out the base . First half of 2011 by the State Administration of Quality Supervision Organization in the provincial quality supervision department of a large bridge gantry crane with a survey has been conducted to find out the number with a large crane , security monitoring devices or systems , as well as large-scale lifting machinery manufacturing and so on.
( Two ) to carry out preliminary pilot , explore the experience . To the end of the first half of 2011 , select some key sectors ( areas ) of some key equipment to carry out preliminary pilot , demonstration and standards for the trial to provide basic data and experience.
1 . Preliminary scope of the pilot : first in railway construction , road construction , power station construction, and shipbuilding industries using more than 200 tons and erecting machine ,eot crane 200 tons and above universal gantry cranes, 320 tons and above, shipbuilding gantry cranes, 60 tons and above ports , shipyards , power plants and portal cranes , 2000 t m and above normal , power tower cranes, crawler cranes 450 tons and above , fixed , swing -style, pan , Radiant cranes of thirteen varieties pilot.
2 . Pilot Contents: quality supervision department in conjunction with the safety supervision department and other relevant departments on the production and use of the identified units of each selection 1-2 sets new manufacturing and 1-2 sets in with a large crane , installed on one machine safety monitoring and management system , By monitoring , control, management and other means , to achieve safe operation control , dangerous critical alarm , on-site real-time display and data record keeping and other functions, while the use of video and audio technology to achieve real-time display and recording status , after the playback effect. On this basis , in conditional units work according to the specific circumstances and needs , and further remote transmission, remote monitoring, remote management, remote services, data , video and audio queries, data, video and audio statistics and analysis functions gradually build things based technologies crane safety monitoring and management of local and remote monitoring platform monitoring platform [WY1].
( Three ) the development of standards , test verification . First half of 2011 to the end of the relevant standard committee coordinating organization for scientific research, design , manufacture, use , inspection , and other units to develop and report security monitoring and management system with national standards. Meanwhile, the combination of pre- trial , organizations related to type testing agencies already " hoist gantry crane safety monitoring and management system " to carry out experimental verification.
( Four ) consolidate our achievements , to expand the pilot . 2012-2013 , summed preliminary experimental work, expand the scope .
1.2012 , the pair of large lifting machinery, production and use of all units in the unit at least one corresponding to each species of large crane install security monitoring and management system , consolidate and promote the early experimental results.
2.2013 years , and gradually in all newly manufactured large lifting machinery installed all security monitoring and management system .
( Five ) full forward, to achieve tangible results . 2014 to 2015 , and intensified efforts , the full implementation of this work to achieve standardization, normalization .
1 . Starting in 2014 , all in a large crane with a full installation on security monitoring and management system .
2.2015 at the end , have not installed security monitoring and management system of large lifting machinery, will not be used.
Fifth, work requirements
( A ) to strengthen their leadership and responsibility . Local quality supervision , safety supervision and relevant departments should strengthen leadership , and assign responsibilities . Local quality supervision departments to combine the actual situation, formulate practical program of work to strengthen coordination and cooperation with relevant departments , while strengthening the help of pilot enterprises , supervision and guidance of research to develop the necessary incentive and restraint measures , a strong impetus to this term work.
( Two ) focused and strengthened. Local quality supervision , safety supervision and relevant departments to guide and supervise the production and use units to develop security monitoring and management system procedures, enhance operator training, improve skills , standardized field use management, and improving the level of protection and security infrastructure 's ability to prevent accidents , in accordance with the requirements of stage work , timely completion of large lifting machinery installed security monitoring and management system tasks.
( Three ) to strengthen the linkage , and strengthen supervision . Local quality supervision , safety supervision departments should unite and collaborate closely with , and vigorously promote the orderly conduct of this work . To actively seek relevant policies to encourage the production and use of units to strengthen the monitoring of daily supervision , to take inspection, sampling inspection, mutual inspection , etc., on a large hoist crane mounted security monitoring and management system were carried out step by step inspection, identify problems and timely coordination solution . To work around promptly reported to the State Administration of Quality Supervision and the State Administration of Work Safety . AQSIQ and the State Administration of Work Safety will be based on the progress of work with the relevant departments to conduct supervision and inspection.
( Four ) wide publicity to create atmosphere . Local quality supervision , safety supervision departments should strengthen the publicity work in various forms , improve production , and use of , and management , engineering and technical personnel and knowledge of the workers , and fully mobilize their enthusiasm ; want to play to industry associations, societies, research institutes , inspection agencies in technology promotion and other aspects of the service , and improve the quality of work and level ; in the implementation process , pay attention to summing up the work , promotion of advanced models , demonstration and guidance , to promote the work for the orderly conduct of good work to form a good atmosphere.
( A ) organizing the investigation , find out the base . First half of 2011 by the State Administration of Quality Supervision Organization in the provincial quality supervision department of a large bridge gantry crane with a survey has been conducted to find out the number with a large crane , security monitoring devices or systems , as well as large-scale lifting machinery manufacturing and so on.
( Two ) to carry out preliminary pilot , explore the experience . To the end of the first half of 2011 , select some key sectors ( areas ) of some key equipment to carry out preliminary pilot , demonstration and standards for the trial to provide basic data and experience.
1 . Preliminary scope of the pilot : first in railway construction , road construction , power station construction, and shipbuilding industries using more than 200 tons and erecting machine ,eot crane 200 tons and above universal gantry cranes, 320 tons and above, shipbuilding gantry cranes, 60 tons and above ports , shipyards , power plants and portal cranes , 2000 t m and above normal , power tower cranes, crawler cranes 450 tons and above , fixed , swing -style, pan , Radiant cranes of thirteen varieties pilot.
2 . Pilot Contents: quality supervision department in conjunction with the safety supervision department and other relevant departments on the production and use of the identified units of each selection 1-2 sets new manufacturing and 1-2 sets in with a large crane , installed on one machine safety monitoring and management system , By monitoring , control, management and other means , to achieve safe operation control , dangerous critical alarm , on-site real-time display and data record keeping and other functions, while the use of video and audio technology to achieve real-time display and recording status , after the playback effect. On this basis , in conditional units work according to the specific circumstances and needs , and further remote transmission, remote monitoring, remote management, remote services, data , video and audio queries, data, video and audio statistics and analysis functions gradually build things based technologies crane safety monitoring and management of local and remote monitoring platform monitoring platform [WY1].
( Three ) the development of standards , test verification . First half of 2011 to the end of the relevant standard committee coordinating organization for scientific research, design , manufacture, use , inspection , and other units to develop and report security monitoring and management system with national standards. Meanwhile, the combination of pre- trial , organizations related to type testing agencies already " hoist gantry crane safety monitoring and management system " to carry out experimental verification.
( Four ) consolidate our achievements , to expand the pilot . 2012-2013 , summed preliminary experimental work, expand the scope .
1.2012 , the pair of large lifting machinery, production and use of all units in the unit at least one corresponding to each species of large crane install security monitoring and management system , consolidate and promote the early experimental results.
2.2013 years , and gradually in all newly manufactured large lifting machinery installed all security monitoring and management system .
( Five ) full forward, to achieve tangible results . 2014 to 2015 , and intensified efforts , the full implementation of this work to achieve standardization, normalization .
1 . Starting in 2014 , all in a large crane with a full installation on security monitoring and management system .
2.2015 at the end , have not installed security monitoring and management system of large lifting machinery, will not be used.
Fifth, work requirements
( A ) to strengthen their leadership and responsibility . Local quality supervision , safety supervision and relevant departments should strengthen leadership , and assign responsibilities . Local quality supervision departments to combine the actual situation, formulate practical program of work to strengthen coordination and cooperation with relevant departments , while strengthening the help of pilot enterprises , supervision and guidance of research to develop the necessary incentive and restraint measures , a strong impetus to this term work.
( Two ) focused and strengthened. Local quality supervision , safety supervision and relevant departments to guide and supervise the production and use units to develop security monitoring and management system procedures, enhance operator training, improve skills , standardized field use management, and improving the level of protection and security infrastructure 's ability to prevent accidents , in accordance with the requirements of stage work , timely completion of large lifting machinery installed security monitoring and management system tasks.
( Three ) to strengthen the linkage , and strengthen supervision . Local quality supervision , safety supervision departments should unite and collaborate closely with , and vigorously promote the orderly conduct of this work . To actively seek relevant policies to encourage the production and use of units to strengthen the monitoring of daily supervision , to take inspection, sampling inspection, mutual inspection , etc., on a large hoist crane mounted security monitoring and management system were carried out step by step inspection, identify problems and timely coordination solution . To work around promptly reported to the State Administration of Quality Supervision and the State Administration of Work Safety . AQSIQ and the State Administration of Work Safety will be based on the progress of work with the relevant departments to conduct supervision and inspection.
( Four ) wide publicity to create atmosphere . Local quality supervision , safety supervision departments should strengthen the publicity work in various forms , improve production , and use of , and management , engineering and technical personnel and knowledge of the workers , and fully mobilize their enthusiasm ; want to play to industry associations, societies, research institutes , inspection agencies in technology promotion and other aspects of the service , and improve the quality of work and level ; in the implementation process , pay attention to summing up the work , promotion of advanced models , demonstration and guidance , to promote the work for the orderly conduct of good work to form a good atmosphere.
Special Equipment Safety Act through January 1, 2014 shall come into force
Recently, the second session of the third meeting of the NPC Standing Committee voted through the "Special Equipment Safety Law",Steel crane since January 1, 2014 into effect.
Special equipment including boilers, pressure vessels, pressure piping, elevators, cranes, passenger ropeway, large-scale amusement facilities, field (factory) special motor vehicles. These devices generally have a high-pressure, high-temperature, high-altitude, high-speed operation under the conditions characteristic, flammable, explosive, prone to falls from a height, etc., to have greater personal and property safety hazard.
Special Equipment Safety Act seven chapters 101,hoist gantry crane special equipment for the production, operation, use, inspection, testing, safety supervision and management, emergency rescue and investigation, legal liability, respectively, detailed provisions.
Special Equipment Safety Act highlights the special equipment production, management, and use of safety responsibility, clearly states: In production, the production company responsible for the quality of special equipment; in the business sectors, sales and rental of special equipment must meet the safety requirements, use of special equipment lessor bears safety management and maintenance obligations; use in accident-prone areas, and use of safe and responsible use of special equipment,overhead gantry crane special equipment and the responsibility for retirement obligations, the incident shall be liable for compensation for damage caused by responsibilities.
Special equipment including boilers, pressure vessels, pressure piping, elevators, cranes, passenger ropeway, large-scale amusement facilities, field (factory) special motor vehicles. These devices generally have a high-pressure, high-temperature, high-altitude, high-speed operation under the conditions characteristic, flammable, explosive, prone to falls from a height, etc., to have greater personal and property safety hazard.
Special Equipment Safety Act seven chapters 101,hoist gantry crane special equipment for the production, operation, use, inspection, testing, safety supervision and management, emergency rescue and investigation, legal liability, respectively, detailed provisions.
Special Equipment Safety Act highlights the special equipment production, management, and use of safety responsibility, clearly states: In production, the production company responsible for the quality of special equipment; in the business sectors, sales and rental of special equipment must meet the safety requirements, use of special equipment lessor bears safety management and maintenance obligations; use in accident-prone areas, and use of safe and responsible use of special equipment,overhead gantry crane special equipment and the responsibility for retirement obligations, the incident shall be liable for compensation for damage caused by responsibilities.
China Heavy Machinery Industry overall development
China's heavy machinery industry,bridge crane with the founding of New China gradually developed since the founding of the heavy machinery industry has achieved a number of major technical equipment in China. Heavy machinery industry is not only highly valued by the state, has become China's mining, energy development, raw materials and other basic industries, and large casting and forging strong localization of major equipment pillar. At present, large-scale heavy machinery enterprises have the ability to provide an annual output of 2,000 tons of mine, an annual output of 60-70 tons of metal ore, annual output of 500 tons of underground coal mine, process 300 tons of coal preparation plant, a single series annual processing capacity of 300 tons of plant and other necessary equipment, and annual output of 600 tons of iron and steel enterprises with conventional process equipment. According to China Heavy Machinery Industry Association, the division of the heavy machinery industry is divided into sub-sectors of metallurgical and mining machinery and material handling equipment sub-sectors.hoist gantry crane The company belongs to the heavy machinery industry in the metallurgical and mining machinery sub-sectors.
2003-2009, in the mining, metallurgical and other downstream industries continued growth in fixed asset investment driven, metallurgical and mining machinery sub-sector achieved sales revenue compound annual growth rate of 38%, higher than the material handling machinery sub-sector average growth rate of 28%, driving heavy machinery industry grew 32%. 2010, China's heavy machinery industry, the situation is generally good, the industrial output value increased by 25%, industrial sales output value increased by 24.4%.
2011 January to November, the heavy machinery industry overall industrial output grew 26.34%, industrial sales output value increased by 27.22% "Twelve Five" period, the heavy machinery industry trends based on relevant national long-term development plan as a guide, aiming at the international advanced heavy industries, using information technology to promote industrialization, the transformation of traditional industries, to adjust the industrial structure and technological enterprise organizational structure, promote industrial restructuring and technological upgrading; focusing on key construction projects, enhance the comprehensive technical capabilities; strengthen independent innovation, accelerate the formation of independent technology,bridge gantry crane independent standards and independent brands; cultivate the development of strategic emerging industries, promote the formation of new competitive advantages and new economic growth point, to improve the overall level of equipment manufacturing industry.
2003-2009, in the mining, metallurgical and other downstream industries continued growth in fixed asset investment driven, metallurgical and mining machinery sub-sector achieved sales revenue compound annual growth rate of 38%, higher than the material handling machinery sub-sector average growth rate of 28%, driving heavy machinery industry grew 32%. 2010, China's heavy machinery industry, the situation is generally good, the industrial output value increased by 25%, industrial sales output value increased by 24.4%.
2011 January to November, the heavy machinery industry overall industrial output grew 26.34%, industrial sales output value increased by 27.22% "Twelve Five" period, the heavy machinery industry trends based on relevant national long-term development plan as a guide, aiming at the international advanced heavy industries, using information technology to promote industrialization, the transformation of traditional industries, to adjust the industrial structure and technological enterprise organizational structure, promote industrial restructuring and technological upgrading; focusing on key construction projects, enhance the comprehensive technical capabilities; strengthen independent innovation, accelerate the formation of independent technology,bridge gantry crane independent standards and independent brands; cultivate the development of strategic emerging industries, promote the formation of new competitive advantages and new economic growth point, to improve the overall level of equipment manufacturing industry.
2013年8月28日星期三
Lifting machinery industry in 2015 is expected to pick up a full recovery
Lifting machinery industry in China has experienced nearly a decade "blowout" type of development, the whole industry has entered a production contract, revenue fell cycles. China
bridge gantry crane CEO, industry analyst Yangshu Yan said: "In fact, starting in 2010, the industry has begun crane shot down, and gradually into a low-profit era, to the winter of 2012, the industry has come."
2013 lifting machinery industry growth slowed further, many crane companies in the homogenization of serious competitive environment difficult. Lifting industry in China has a "barometer" of the Chinese crane hometown in Henan Province Changyuan, past busy, machines roaring situation no longer exists, lack of factory orders, production team layoffs have become a common phenomenon industry . Funding strand breaks is very difficult for many companies in the brink of life and death. 2013 a quarter of the entire industry output profits fell nearly 60%.
Yang Shuyan analysis that led to the first quarter of 2013, corporate sales and revenue both fell mainly due to weak industry demand, but in the back of weak demand, not just domestic fixed asset investment growth and a decline in the real estate market five new national policy impact, but also the entire country in 2012 a continuation of the equipment manufacturing industry downturn.
hoist gantry crane industry over the last golden years, gave birth to the rise of a number of leading enterprises, but the excessive pursuit of speed and scale also resulted in overcapacity, irrational structure, product homogeneity, etc. invisible injury, this situation is growing stagnant 2012 annual performance is very obvious to the industry caused a lot of pressure. Enter 2013 in the enterprise revenue decline, the market demand slowdown Yan Chun situation, Changyuan also from the government level, the use of the visible hand pushing business strategic restructuring, guide enterprises to adjust product structure, promote the healthy development of the whole industry a reasonable .
In fact, some industry experts are not optimistic about the crane industry placanticline internal reorganization, because different companies kneaded together, sheer scale merger may not be able to achieve optimal results. Large enterprises and groups requires companies endogenous development and growth, rather than a simple merger and reorganization. For the entire industry, lifting, walking industrial upgrading, product upgrading, technological innovation, marketing model innovation is stronger placanticline crane industry and the country's key.
In the context of global economic restructuring, lifting machinery industry development trend of slowdown is inevitable. China's manufacturing purchasing managers index (PMI) 2013 year April index was 50.6, down 0.30%, which we analysts believe the industry is still in the stage of stabilization row irresolute. At what time it comes to bridge crane can really pick up when Yangshu Yan analysis, the future lies in integration and opportunities for more innovative marketing model. At present, the Chinese crane industry is still relatively extensive mode of development, technological innovation capability is weak, low value-added products, the overall big but not strong, the real recovery in the industry should be in the end of 2015.
How quickly achieve industrial transformation and upgrading, smoothly through the downturn adjustment period? How in the future market competition in the next round to seize the high ground, the entire hoist crane in the future development process need to solve the primary problem. "
2013 lifting machinery industry growth slowed further, many crane companies in the homogenization of serious competitive environment difficult. Lifting industry in China has a "barometer" of the Chinese crane hometown in Henan Province Changyuan, past busy, machines roaring situation no longer exists, lack of factory orders, production team layoffs have become a common phenomenon industry . Funding strand breaks is very difficult for many companies in the brink of life and death. 2013 a quarter of the entire industry output profits fell nearly 60%.
Yang Shuyan analysis that led to the first quarter of 2013, corporate sales and revenue both fell mainly due to weak industry demand, but in the back of weak demand, not just domestic fixed asset investment growth and a decline in the real estate market five new national policy impact, but also the entire country in 2012 a continuation of the equipment manufacturing industry downturn.
hoist gantry crane industry over the last golden years, gave birth to the rise of a number of leading enterprises, but the excessive pursuit of speed and scale also resulted in overcapacity, irrational structure, product homogeneity, etc. invisible injury, this situation is growing stagnant 2012 annual performance is very obvious to the industry caused a lot of pressure. Enter 2013 in the enterprise revenue decline, the market demand slowdown Yan Chun situation, Changyuan also from the government level, the use of the visible hand pushing business strategic restructuring, guide enterprises to adjust product structure, promote the healthy development of the whole industry a reasonable .
In fact, some industry experts are not optimistic about the crane industry placanticline internal reorganization, because different companies kneaded together, sheer scale merger may not be able to achieve optimal results. Large enterprises and groups requires companies endogenous development and growth, rather than a simple merger and reorganization. For the entire industry, lifting, walking industrial upgrading, product upgrading, technological innovation, marketing model innovation is stronger placanticline crane industry and the country's key.
In the context of global economic restructuring, lifting machinery industry development trend of slowdown is inevitable. China's manufacturing purchasing managers index (PMI) 2013 year April index was 50.6, down 0.30%, which we analysts believe the industry is still in the stage of stabilization row irresolute. At what time it comes to bridge crane can really pick up when Yangshu Yan analysis, the future lies in integration and opportunities for more innovative marketing model. At present, the Chinese crane industry is still relatively extensive mode of development, technological innovation capability is weak, low value-added products, the overall big but not strong, the real recovery in the industry should be in the end of 2015.
How quickly achieve industrial transformation and upgrading, smoothly through the downturn adjustment period? How in the future market competition in the next round to seize the high ground, the entire hoist crane in the future development process need to solve the primary problem. "
Crane parts industry development status and future trend analysis
The face of the huge crane market demand , China's
gantry crane auxiliary equipment enterprises have increased their marketing and development efforts . But the vast majority of companies are still doing some of the more traditional way , relying on low- price competition to gain market share . So, small businesses how to change this situation , to seek a breakthrough to develop it ?
Industry Status
Along with the increasing emphasis on the construction machinery industry , in recent years , China's crane industrial policy direction infrastructure components will start doing financial subsidies. In other words, such as spreader rigging , lifting appliances and other bridge gantry crane spare parts industry, will be a good opportunity for development.
The data show that the first quarter of 2013, the overall development of construction machinery industry exceeded early expectations. This fully shows that China is increasing investment in infrastructure , energy and other construction projects , driven to the crane industry has brought high-speed growth , crane auxiliary equipment market much room for improvement .
Business problems
Spreader rigging, is the most commonly used auxiliary hoist gantry crane , lifting devices used for lifting heavy objects , in order to meet the daily maintenance of large-scale machinery lifting and improve operating efficiency . 2008 world financial crisis , China's sling is developing very rapidly , either export or domestic sales have reached the pinnacle of history . Faced with the grim economic situation , a sling sales competition became more intense.
In addition, the spreader rigging companies had also faced with technical standards , and management problems. Some export-oriented enterprises , due to lack of experience on the domestic market , in order to survive , the price war has seriously affected the healthy development of the industry sling . And some envious electricity supplier market for SMEs , impatient sales wrong generous self- development platform or choose to pay huge membership fees platforms , do not get the desired effect, no major increase in sales .
Future Prospects
Future, the crane auxiliary equipment industry is facing the problem of unbalanced supply and demand is mainly manifested in two trends , one is globalization , one customer differentiation. Relatively small crane auxiliary equipment companies, customer-differentiated both opportunities and challenges . In short , products and technology is the core of development , the introduction of network marketing business success mechanism .
Therefore , small and medium enterprises if the crane auxiliary equipment in order to continue to maintain good profit ,overhead gantry crane you need to constantly improving product technology, to meet different customer needs, to ensure that the company's sales starting point in the earnings position.
Industry Status
Along with the increasing emphasis on the construction machinery industry , in recent years , China's crane industrial policy direction infrastructure components will start doing financial subsidies. In other words, such as spreader rigging , lifting appliances and other bridge gantry crane spare parts industry, will be a good opportunity for development.
The data show that the first quarter of 2013, the overall development of construction machinery industry exceeded early expectations. This fully shows that China is increasing investment in infrastructure , energy and other construction projects , driven to the crane industry has brought high-speed growth , crane auxiliary equipment market much room for improvement .
Business problems
Spreader rigging, is the most commonly used auxiliary hoist gantry crane , lifting devices used for lifting heavy objects , in order to meet the daily maintenance of large-scale machinery lifting and improve operating efficiency . 2008 world financial crisis , China's sling is developing very rapidly , either export or domestic sales have reached the pinnacle of history . Faced with the grim economic situation , a sling sales competition became more intense.
In addition, the spreader rigging companies had also faced with technical standards , and management problems. Some export-oriented enterprises , due to lack of experience on the domestic market , in order to survive , the price war has seriously affected the healthy development of the industry sling . And some envious electricity supplier market for SMEs , impatient sales wrong generous self- development platform or choose to pay huge membership fees platforms , do not get the desired effect, no major increase in sales .
Future Prospects
Future, the crane auxiliary equipment industry is facing the problem of unbalanced supply and demand is mainly manifested in two trends , one is globalization , one customer differentiation. Relatively small crane auxiliary equipment companies, customer-differentiated both opportunities and challenges . In short , products and technology is the core of development , the introduction of network marketing business success mechanism .
Therefore , small and medium enterprises if the crane auxiliary equipment in order to continue to maintain good profit ,overhead gantry crane you need to constantly improving product technology, to meet different customer needs, to ensure that the company's sales starting point in the earnings position.
The complexity of the construction of nuclear power will affect the development of large-scale engineering machinery
In the comprehensive nuclear safety checks and routine ongoing safety evaluation, based on the National Nuclear Security Administration in February 2012 drafted the "nuclear safety and radioactive pollution prevention" Twelfth Five Year Plan "and the 2020 vision" (hereinafter referred to as "Nuclear security plan") and the whole of society for public comment,hoist gantry crane the State Council examined and approved in the same year in May and issued a "nuclear safety planning." The plan put forward China's 2020 nuclear safety vision: the operation and safety of nuclear installations under construction levels continue to increase, "13 5" (2016-2020) and after the new nuclear units and strive to achieve virtual elimination from the design of radioactive substances the possibility of release; fully completed state supervision of nuclear and radiation safety technology research and development base and the national radiation environment monitoring system; formation of fully functional, responsive, hoist crane and efficient operation of nuclear and radiation accident emergency response system. 2020, to maintain the international advanced level nuclear safety, nuclear safety and to enhance the level of radioactive pollution prevention, radiation, environmental quality remains good.
After the Fukushima nuclear accident, the Chinese government will suspend inland nuclear power plant construction plans. Worldwide, some countries have taken measures to abandon its nuclear program, so that today in the energy sector is affected. For example, in Germany closed after the Fukushima nuclear power plant, the use of wind power generation, but recently affected by no wind, you can not generate electricity; Japan after the accident at the Fukushima nuclear power plant, shutting down part of the nuclear power plants, directly affect their summer supply, while resulting in reduced capacity of local enterprises or to the relocation of production, seriously affecting national economic development. In the construction of new projects for large crawler jib crane and other product performance and technical indicators will be increased accordingly.
After the Fukushima nuclear accident, the Chinese government will suspend inland nuclear power plant construction plans. Worldwide, some countries have taken measures to abandon its nuclear program, so that today in the energy sector is affected. For example, in Germany closed after the Fukushima nuclear power plant, the use of wind power generation, but recently affected by no wind, you can not generate electricity; Japan after the accident at the Fukushima nuclear power plant, shutting down part of the nuclear power plants, directly affect their summer supply, while resulting in reduced capacity of local enterprises or to the relocation of production, seriously affecting national economic development. In the construction of new projects for large crawler jib crane and other product performance and technical indicators will be increased accordingly.
Erecting machine operating procedures and precautions ( on )
First, when erecting machine moves longitudinally to do all the preparatory work , for once in place, not half-way stop .
Second, the bridge machine running vertically on both sides of the track corresponding to the level specified height and remain stable.hoist gantry crane Before , during and after each lateral outrigger orbit required level , and strictly control the spacing, three tracks must be parallel .
Third, in the oblique concrete beam bridge installation, bridge machine before , during and after walking round outrigger positions , left and right front and rear wheels to stagger , and its pitch angle can be calculated based on bias , so that may be in the same lateral outrigger wheels orbit - specific matters can contact with manufacturing units .
Fourth, the bridge machine crane carrying concrete beams longitudinally running, hand pull the front leg parts required gourd (5t) and sliding rails fixed to enhance the stability of tension .
Fifth , when installed on the bridge when going downhill ,overhead gantry crane erecting machine longitudinal displacement measures should prevent sliding . For example : the use of triangular iron for protection in the front and rear wheels , especially in the legs away from the beam end close, the shift to the attention of the control .
Sixth, erecting machine installation , you should always pay attention to safety checks, each mounting a hole must conduct a comprehensive safety inspection , identify problems and timely treatment to stop work in order to continue operations. Work with mechanical and electrical failures allowed .
Seventh, in addition , the installation does not allow overload operation, not oblique hanging enhance operations.
Eighth, the connection pin of the processing material requirements must be in accordance with the design drawings shall not be replaced with a low steel processing .
Ninth, erecting machine must be carried out after assembly retry crane lifting operation , can also be hanging concrete beam specimens after erecting machine and then run the place to begin the installation .
Tenth, in five more than the wind conditions, the non- job, you must use a solid bridge machine rigging and lifting crane , bridge gantry crane to stop working when you turn off the power , to prevent accidents.
Eleventh , erecting machine in place must be strictly controlled longitudinal position sizes to ensure a smooth installation of precast concrete beams in place .
XII , as the case of the bridge erecting machine installation of large equipment, erecting machine operations must be clear division of labor, unity of command, to set up full operations staff, full-time and full-time electrician safety inspectors .overhead bridge crane Also, there are strict construction organization and measures to ensure construction safety.
Second, the bridge machine running vertically on both sides of the track corresponding to the level specified height and remain stable.hoist gantry crane Before , during and after each lateral outrigger orbit required level , and strictly control the spacing, three tracks must be parallel .
Third, in the oblique concrete beam bridge installation, bridge machine before , during and after walking round outrigger positions , left and right front and rear wheels to stagger , and its pitch angle can be calculated based on bias , so that may be in the same lateral outrigger wheels orbit - specific matters can contact with manufacturing units .
Fourth, the bridge machine crane carrying concrete beams longitudinally running, hand pull the front leg parts required gourd (5t) and sliding rails fixed to enhance the stability of tension .
Fifth , when installed on the bridge when going downhill ,overhead gantry crane erecting machine longitudinal displacement measures should prevent sliding . For example : the use of triangular iron for protection in the front and rear wheels , especially in the legs away from the beam end close, the shift to the attention of the control .
Sixth, erecting machine installation , you should always pay attention to safety checks, each mounting a hole must conduct a comprehensive safety inspection , identify problems and timely treatment to stop work in order to continue operations. Work with mechanical and electrical failures allowed .
Seventh, in addition , the installation does not allow overload operation, not oblique hanging enhance operations.
Eighth, the connection pin of the processing material requirements must be in accordance with the design drawings shall not be replaced with a low steel processing .
Ninth, erecting machine must be carried out after assembly retry crane lifting operation , can also be hanging concrete beam specimens after erecting machine and then run the place to begin the installation .
Tenth, in five more than the wind conditions, the non- job, you must use a solid bridge machine rigging and lifting crane , bridge gantry crane to stop working when you turn off the power , to prevent accidents.
Eleventh , erecting machine in place must be strictly controlled longitudinal position sizes to ensure a smooth installation of precast concrete beams in place .
XII , as the case of the bridge erecting machine installation of large equipment, erecting machine operations must be clear division of labor, unity of command, to set up full operations staff, full-time and full-time electrician safety inspectors .overhead bridge crane Also, there are strict construction organization and measures to ensure construction safety.
2013年8月27日星期二
Development of domestic crane
The rapid development of modern science and technology to promote the modern design and manufacturing capabilities, the fierce market competition is increasingly reflected in technology competition , which prompted the
overhead gantry crane machinery products technical performance into a new phase , lifting machinery is experiencing a huge technological change. Some industry leading enterprises in the introduction , digestion and absorption of advanced industrial countries on the basis of similar products , keeping up with international trends, the introduction of new theories, new technologies, new methods to promote optimal design , CAD / CAE and other modern design methods, products are also to the automatic , intelligent and information sent tuxedo, to complete , systematic and large-scale development ,bridge gantry crane to large , efficient and energy-saving technology development , product diversification, the development of special cranes to meet the requirements, design to scale, general development, and starting to focus on product interpersonal rationality, shape, surface coating such as the appearance of quality , help to improve operational efficiency and safe operation.
An improved lifting dissipation , reduce weight
Cranes and more domestic computer optimized design has been adopted , in order to improve the machine's technical performance and reduce weight , and in this context as far as possible the new structure . If 5 ~ 50t overhead eot crane sed in semi- generic off-track main beam structure, compared with the track box girder can be reduced or eliminated in the small girder stiffened panels , plus canceled short plate board, reduce structural weight , saving processing . National Spark Program had split with four proposed bridge is not high structure , together with the ordinary racetrack in the same bridge crane lifting height , the plant can be reduced corbel elevation 1.5m: two ends of the main beam is placed end of the beam, with the bolt connection: wheel tread height drop as a result , will make the plant corbels elevation drop. In the role of the vertical wheel load , the calculation of the column height, factories and infrastructure cost reduction , plant life increases.
2 , the full absorption of foreign advanced technology .
Are:
( A ) the size of the crane car run institutions a "triple play " drives, hanging on the end of the beam inside it from the main beam deflection and vibration under the influence of improved operational performance and life institutions , and to compact, beautiful appearance , easy installation and maintenance .
( 2 ) With halogen machining capabilities within the overall frame carts and small bore possible. Thus 45 ° mesh and wheels or cylindrical bearing box will replace the angular bearing housing , the shaft mounted on the wheel axle beam centerline axis of the hole and the end of votes constituting 90 °, so the horizontal and vertical deflection of the wheels Phan can be strictly controlled within the specified country , the occurrence of the phenomenon of eating track . The frame is a small bore formed after welding , hole center line of the four wheels in the same plane , three landing successfully solved the problem .
( 3 ) Lifting mechanism used in the hardened or hardened reducer , gear accuracy of 7 , the tooth surface hardness 320HBS, thus increasing the carrying capacity , extended service life.
( 4 ) electrical control, digestion and absorption of foreign advanced technology, using a novel energy-saving speed control system . If thyristor cascade open or closed loop systems, speed ratio up to 1:30. With the increasing demand for speed , frequency modulation with Dingmen cranes require frequency control system, microcomputer automatic correction country has a large head and precision microcomputer monitoring system.
( 5 ) Remote crane development needs to be as production volume is also growing , Baoshan steel mill cranes in the study abroad after the proposed remote crane develop recommendations to improve safety, reduce labor .
3 , to large-scale development
Since the state 's emphasis on energy and funding the construction of many large and medium hydropower turbines is growing. Special Chang Three Gorges Project construction on a large crane requirements rapidly. Three Gorges Project main plant installed two 1200/125t hoist gantry crane, equipped with a 2000t in type tower crane . With the current national policy of stimulating domestic demand, the gradual introduction , there are many large-scale hydropower , nuclear power plants and large and medium-sized power plants need to build , can be expected in high -tonnage cranes requirement is very large and broad prospects.
An improved lifting dissipation , reduce weight
Cranes and more domestic computer optimized design has been adopted , in order to improve the machine's technical performance and reduce weight , and in this context as far as possible the new structure . If 5 ~ 50t overhead eot crane sed in semi- generic off-track main beam structure, compared with the track box girder can be reduced or eliminated in the small girder stiffened panels , plus canceled short plate board, reduce structural weight , saving processing . National Spark Program had split with four proposed bridge is not high structure , together with the ordinary racetrack in the same bridge crane lifting height , the plant can be reduced corbel elevation 1.5m: two ends of the main beam is placed end of the beam, with the bolt connection: wheel tread height drop as a result , will make the plant corbels elevation drop. In the role of the vertical wheel load , the calculation of the column height, factories and infrastructure cost reduction , plant life increases.
2 , the full absorption of foreign advanced technology .
Are:
( A ) the size of the crane car run institutions a "triple play " drives, hanging on the end of the beam inside it from the main beam deflection and vibration under the influence of improved operational performance and life institutions , and to compact, beautiful appearance , easy installation and maintenance .
( 2 ) With halogen machining capabilities within the overall frame carts and small bore possible. Thus 45 ° mesh and wheels or cylindrical bearing box will replace the angular bearing housing , the shaft mounted on the wheel axle beam centerline axis of the hole and the end of votes constituting 90 °, so the horizontal and vertical deflection of the wheels Phan can be strictly controlled within the specified country , the occurrence of the phenomenon of eating track . The frame is a small bore formed after welding , hole center line of the four wheels in the same plane , three landing successfully solved the problem .
( 3 ) Lifting mechanism used in the hardened or hardened reducer , gear accuracy of 7 , the tooth surface hardness 320HBS, thus increasing the carrying capacity , extended service life.
( 4 ) electrical control, digestion and absorption of foreign advanced technology, using a novel energy-saving speed control system . If thyristor cascade open or closed loop systems, speed ratio up to 1:30. With the increasing demand for speed , frequency modulation with Dingmen cranes require frequency control system, microcomputer automatic correction country has a large head and precision microcomputer monitoring system.
( 5 ) Remote crane development needs to be as production volume is also growing , Baoshan steel mill cranes in the study abroad after the proposed remote crane develop recommendations to improve safety, reduce labor .
3 , to large-scale development
Since the state 's emphasis on energy and funding the construction of many large and medium hydropower turbines is growing. Special Chang Three Gorges Project construction on a large crane requirements rapidly. Three Gorges Project main plant installed two 1200/125t hoist gantry crane, equipped with a 2000t in type tower crane . With the current national policy of stimulating domestic demand, the gradual introduction , there are many large-scale hydropower , nuclear power plants and large and medium-sized power plants need to build , can be expected in high -tonnage cranes requirement is very large and broad prospects.
Crane Safety Precautions trolley line
Crane safety trolley line is a new mobile power supply unit, with its insulation, security, temperature, vibration, energy saving and other advantages to gradually replace the old bare angle iron and copper trolley line.
bridge gantry crane in use and easy off, sometimes in the transmission conduit sparks some serious blasting trolley line ", resulting collector replaced too frequently, affecting production. Therefore conducted the following improvements:
(A) increasing the collector brushes chamfered and polished smooth;
(2) increasing the collector between two opposite brush spring strength, flexibility, ensure spring return freely;
(3) to deepen. Reinforcement collector in a spring seat,hoist gantry crane the return spring to ensure the brush is not easy in the work "bit string";
(4) two safety trolley line connections connecting block should be chamfered to ensure a smooth transition collector. Meanwhile, to ensure the safety of the normal use of the trolley line, driving workers standardize operations, maintenance workers of periodic maintenance,bridge crane periodic inspection is also essential.
bridge gantry crane in use and easy off, sometimes in the transmission conduit sparks some serious blasting trolley line ", resulting collector replaced too frequently, affecting production. Therefore conducted the following improvements:
(A) increasing the collector brushes chamfered and polished smooth;
(2) increasing the collector between two opposite brush spring strength, flexibility, ensure spring return freely;
(3) to deepen. Reinforcement collector in a spring seat,hoist gantry crane the return spring to ensure the brush is not easy in the work "bit string";
(4) two safety trolley line connections connecting block should be chamfered to ensure a smooth transition collector. Meanwhile, to ensure the safety of the normal use of the trolley line, driving workers standardize operations, maintenance workers of periodic maintenance,bridge crane periodic inspection is also essential.
Crane points to note
Since lifting is special equipment, with a higher risk characteristics, therefore, the installation of the
gantry crane , the security is especially important to pay particular attention to the following aspects:
(A) the crane structure are mostly large institutional complex mechanical devices, it is often difficult overall transport is often split after shipping the equipment to use the site as a whole assembly. Therefore, it is necessary in order to reflect properly installed crane overall eligibility to test the integrity of the whole crane and integrity.
(2) cranes are in use venues or buildings orbit. Therefore, its orbit or install base, and the crane itself, is able to complement each other well, and the ability to run whether they can adapt to meet strict requirements, must go through the proper installation and post-installation commissioning and testing concluded .
(3) Cranes high security requirements, safety devices must be complete and properly installed, in order to achieve a reliable, flexible, and accurate technical requirements.
(4) based on the importance of safe working bridge gantry crane the crane was put into use in order to meet the operational requirements of various loads, it must be conducted according to the provisions of the crane load, full load, overload static and dynamic load tests. These tests must be the operating state of the crane mechanism or specific for a stationary state. This requires the crane load test after installation only after the transfer of use.
(5) the crane wire rope and other flexible member, and many other parts will occur in some of the initial elongation under load, deformation, loosening. It also requires the crane crane installation, commissioning loaded after correction for repair, adjustment, handling and fastening. Therefore, we must do a good job crane installation, commissioning, speed and a series of work in order to ensure the future safety of the hoist gantry crane normally used.
(A) the crane structure are mostly large institutional complex mechanical devices, it is often difficult overall transport is often split after shipping the equipment to use the site as a whole assembly. Therefore, it is necessary in order to reflect properly installed crane overall eligibility to test the integrity of the whole crane and integrity.
(2) cranes are in use venues or buildings orbit. Therefore, its orbit or install base, and the crane itself, is able to complement each other well, and the ability to run whether they can adapt to meet strict requirements, must go through the proper installation and post-installation commissioning and testing concluded .
(3) Cranes high security requirements, safety devices must be complete and properly installed, in order to achieve a reliable, flexible, and accurate technical requirements.
(4) based on the importance of safe working bridge gantry crane the crane was put into use in order to meet the operational requirements of various loads, it must be conducted according to the provisions of the crane load, full load, overload static and dynamic load tests. These tests must be the operating state of the crane mechanism or specific for a stationary state. This requires the crane load test after installation only after the transfer of use.
(5) the crane wire rope and other flexible member, and many other parts will occur in some of the initial elongation under load, deformation, loosening. It also requires the crane crane installation, commissioning loaded after correction for repair, adjustment, handling and fastening. Therefore, we must do a good job crane installation, commissioning, speed and a series of work in order to ensure the future safety of the hoist gantry crane normally used.
订阅：
博文 (Atom)