santo gantry crane

2013年7月26日星期五

Bridge crane rail wheels gnawing repair methods


1. Transmission mechanism to adjust for carts
bridge crane on two separately driven drive mechanism assembly tightness should be carefully adjusted; two carts to carefully check the motor speed differential repair; sets appropriate to adjust the tightness of the brake; Check the gearbox, coupling gear wear, update both sides should also be updated; tapered tread on the wheels should be noted that a large head-mounted inside.
2. Gnawing on the rail car repair
Deflection of the  overhead bridge crane  girder will cause the car two track distance becomes smaller. When the gauge is small to a certain extent, to the outer rim of a single car, the runtime may derailment; edge of the wheeled trolley, the runtime rail clamp phenomenon generated. Then flame straightening should be used to repair the bridge girder camber and reinforcement, the trolley gauge within tolerance. In a flame under the main beam deflection distortion correction or replacement of track, pay attention to the middle of the main beam from the top.
3. Deformation caused due to bridge institutional carts gnaw gnawing rail track repairs due carts many reasons, repairs should be targeted. Such as bridge vertical diagonal deviation tolerance, you should use flame straightening structural deformation.
4. Wheel deflection caused due to the repair of rail carts gnawing
Then which one should be analyzed to determine the adjustment wheel workload is small and the effect is good, but should try to consider adjusting the passive wheels. For horizontal deflection wheel adjustment should be considered in each other and the offsetting effect. After adjusting the wheel before the first use of the jack will end beam (or balance beam) from the top, so that the wheel vacant, then release the fastening bolts to adjust. Small tweaks can loosen the fastening bolts, bearing box in the corner of the keyway plus plate can adjust the volume, should locate key board shovel to open the key board and the end beam bending plate to plate in between adjusted. For vertical skew adjustment, should be adjusted to the outside into two wheels are skewed. So that the bridge structure is conducive to increase after carrying wheel and rail contact area.
5. Adjustment for carts track
Should be strictly in accordance with the technical requirements to adjust the elevation of the track, span and linearity; checking the bolts fastening. For heavy duty and large lifting capacity of the crane should be inspected once half a year, the other half to be adjusted once a year inspection. A good way to prevent gnawing rail carts.

1 条评论:

  1. This is the easiest method to repair bridge crane rail wheels. The steps are easy to understand and execute. Thanks for sharing.

    Regards
    Henry Jordan

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