A new gantry crane wind brakes

In this paper, after transformation with a long stroke solenoid brake blocks instead of the gantry crane traveling mechanism in two short stroke solenoid brake blocks are used to complete the traditional functions . One of the problems raised gantry crane vulnerable when the storm struck in open space operations, especially in the coastal areas, overhead gantry crane could easily lead to a major accident gantry crane derailment , overturning and other equipment. Therefore, we must increase the gantry crane carts braking torque , the use of sliding friction between the rails and the wheels to prevent the crane was working by the sudden large wind run . Currently, the double brake commonly used as a brake operating condition of the wind , one brake is a normal working state of the brake , the brake of the other brake wind , shown in Figure 1 . Because the dual brake brake motors were bridge gantry crane installed in a dual- axis , making the structure and control circuits are more complex, the cost increase, to the use and maintenance of both inconvenience. If two brake with a brake operation to complete some of these problems can be avoided . Second, the solution of a long-stroke brake blocks, i.e., the braking torque by the braking torque and the two electromagnets , the main brake spring lever system for generating braking torque generated components. If on the basis of the standard long stroke brake blocks on .