The invention discloses a crane pulley block, a crane and a crane pulley block adjusting method, relates to the field of engineering machinery, and aims to conveniently realize the adjustment of the hoisting multiplying power of the crane. The crane pulley block comprises a fixed pulley assembly, a movable pulley assembly, a steel wire rope, a hook seat and a hook. The fixed pulley assembly comprises a fixed pulley seat and a plurality of fixed pulleys; the fixed pulley seat comprises a seat body and a lug boss which are fixedly connected; the plurality of fixed pulleys are rotatably mounted on the seat body. The movable pulley assembly includes a plurality of movable pulleys. The steel wire rope is wound between the fixed pulleys and the movable pulleys. The lifting hook seat is positioned on one side of each movable pulley away from the fixed pulley. The hook is mounted on the hook seat. And under the condition that the steel wire rope is always wound on the fixed pulleys and the movable pulleys, at least one movable pulley is detachably and rotationally connected with the lifting hook seat in a switchable manner. According to the technical scheme, the multiplying power adjustment of the pulley block of the crane is conveniently realized.

    本发明公开了一种起重机滑轮组、起重机以及起重机滑轮组调节方法,涉及工程机械领域,用以方便地实现起重机起吊倍率的调节。起重机滑轮组包括定滑轮组件、动滑轮组件、钢丝绳、吊钩座以及吊钩。定滑轮组件包括定滑轮座以及多个定滑轮;定滑轮座包括固定连接的座体以及凸起部;多个定滑轮可转动地安装于座体。动滑轮组件包括多个动滑轮。钢丝绳缠绕于多个定滑轮和多个动滑轮之间。吊钩座位于各个动滑轮远离定滑轮的一侧。吊钩安装于吊钩座。其中,在保持钢丝绳始终缠绕于各个定滑轮和动滑轮的情况下,存在至少一个动滑轮可切换地与吊钩座可拆卸地转动连接。上述技术方案,方便地实现了起重机滑轮组的倍率调节。


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    Title :

    Crane pulley block, crane and crane pulley block adjusting method


    Additional title:

    起重机滑轮组、起重机以及起重机滑轮组调节方法


    Contributors:
    YAO XIANGBIN (author) / CHEN HAIJUN (author) / CHEN WEIDONG (author) / SUN LI (author)

    Publication date :

    2023-01-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / B66C Krane , CRANES



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