The invention discloses a crane control device, a crane and a crane control method.The crane control device comprises a hydraulic pump, an unloading oil way, a multi-way valve and a control valve, the multi-way valve is connected to the hydraulic pump, the multi-way valve is further connected to a variable-amplitude oil cylinder, a telescopic oil cylinder and a winch motor of the crane, and the control valve is arranged on the unloading oil way; the unloading oil way is connected with the oil tank, the variable-amplitude oil cylinder, the telescopic oil cylinder and the winch motor, and the control valve is used for controlling connection and disconnection of the unloading oil way. In the embodiment of the invention, the variable-amplitude oil cylinder, the telescopic oil cylinder and the winch motor can be directly unloaded so as to limit variable amplitude of the variable-amplitude oil cylinder, extension of the telescopic oil cylinder and winding of the steel wire rope, the problems of misoperation and breakage of the steel wire rope are avoided, an operating valve does not need to be arranged, and the cost is low.

    本发明公开一种起重机控制装置、起重机及起重机控制方法,该起重机控制装置包括液压泵、卸荷油路、多路阀和控制阀,多路阀连接于液压泵,多路阀还连接于起重机的变幅油缸、伸缩油缸和卷扬马达,控制阀设于所述卸荷油路上,卸荷油路连接油箱与变幅油缸、伸缩油缸和卷扬马达,并且控制阀用于控制卸荷油路的连通与关闭。本发明实施例中,可直接对变幅油缸、伸缩油缸和卷扬马达进行卸荷,以限制变幅油缸变幅、伸缩油缸伸出和卷扬收钢丝绳,避免出现误操作、避免拉断钢丝绳的问题,且无需设置操纵阀,成本较低。


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    Title :

    Crane control device, crane, and crane control method


    Additional title:

    起重机控制装置、起重机及起重机控制方法


    Contributors:
    WANG XIAOFENG (author) / TOTOMO (author) / LUO WEI (author) / LIU LIN (author) / ZHANG CHANGJIANG (author)

    Publication date :

    2025-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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