The invention relates to a device for preventing reverse operation braking of a large crane and a control method. One end of a motor of the large crane is arranged to be a spline sliding mechanism, the characteristic that axial friction force between a spline sleeve and a spline shaft is different when the spline sleeve rotates and is static is utilized, and the two side faces of the spline sleeve are each provided with a reset spring and a contact switch; in the running process of the driving device, the electric key for controlling running in the opposite direction on the operation handle fails, reverse operation cannot be achieved in the running process of a large crane, and the problem that crane parts are damaged due to the fact that a reverse running face is operated is solved. The invention has the advantages of ingenious design, simple operation, stable operation, good control effect and the like.

    本发明涉及一种大型行车防止逆向操作刹车的装置及控制方法,将大型行车电机的一端设置成花键滑动机构,利用花键套在旋转和静止时与花键轴之间轴向摩擦力不同的特征,并在花键套两侧面分别各设有一个复位弹簧和接触开关,使驱动装置在运行过程中,操作手柄上向相反方向运行控制的电键失效,实现大型行车运行过程中无法逆向操作,解决了因操作反向运行面损坏行车部件的问题。本发明具有设计巧妙、操作简单、运行稳定和控制效果好等优点。


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    Title :

    Device and control method for preventing reverse operation of brake for large-scale travelling crane


    Additional title:

    一种大型行车防止逆向操作刹车的装置及控制方法


    Contributors:

    Publication date :

    2022-12-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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