Feasible gantry crane electrical equipment switch wiring diagram

   Feasible  hoist gantry crane  electrical equipment switch wiring diagram, the current by the laying on of friction below ground wire input. There instantaneous power and the continuation of the automatic power-off switch, the current exceeds the set value, the maximum current of the circuit breaker off, but the motor will not be subjected to excessive current.
     On tracks in the standard gantry crane, if the majority of the work and is used for moving little side road, the available ground friction conductive wire, but it has a drawback in that the height by the friction winch crane wire location restrictions.
     Gantry crane, arm outstretched undulating motion for a two-screw, thus extending the radius of the  overhead bridge crane  is occasionally adjusted, so we used to make the crane rotary motor fluctuations in work, according to work needs, the rotating mechanism or undulating institutions twelve toothed clutch engaged or disengaged.
     If the radius out to be adjusted in the work, that is, must be adjusted  overhead gantry crane  work, the arm can be extended with a balance weight to offset the weight, and a corresponding reduction in the motor power fluctuations; you can also use a suitable projecting arm structure and the device, and the projecting arm undulating approximately horizontal when the load reaches a distance.