The invention discloses a hinge point structure of a balance arm of a fast-assembly tower crane. The hinge point structure comprises a first connecting assembly and a second connecting assembly, the first connecting assembly comprises a hinge point support, a locking plate frame and locking pins, the hinge point support is connected with the balance arm, the locking plate frame is connected with the hinge point support through a connecting pin shaft, the locking pins are arranged at the two ends of the connecting pin shaft, the second connecting assembly comprises a rotary seat plate, one end of the rotary seat plate is connected with the rotary assembly, and the other end of the rotary seat plate is connected with the balance arm. And the other end of the rotary seat plate is buckled on the connecting pin shaft and is connected with the lock plate frame. Closed type installation of the balance arm connecting pin shaft is changed into open type installation, the installation speed of the balance arm is increased, rapid installation of the balance arm is achieved, meanwhile, the safety pin is additionally arranged at the connecting position, the whole balance arm cannot be separated from the U-shaped bayonet, the stability of overall structure connection is guaranteed, the rapid installation mode is adopted, the balance arm hinge point connecting pin shaft does not need to be disassembled and assembled, and installation is convenient. The abrasion of the pin shaft caused by repeated disassembly and assembly is reduced, and the service life of the pin shaft is prolonged.

    本发明公开了快装式塔机平衡臂铰点结构。铰点结构包括连接组件一和连接组件二,连接组件一包括铰点支座、锁板架和锁紧销,铰点支座与平衡臂连接,锁板架通过连接销轴与铰点支座连接,连接销轴的两端设有锁紧销,连接组件二包括回转座板,回转座板的一端与回转总成连接,回转座板的另一端扣设在连接销轴上,且与锁板架连接。本发明通过将平衡臂连接销轴闭式安装改为开式安装,提升了平衡臂的安装速度,实现该部件的快速安装,同时,在连接处增加安全销,不会整个脱出U型卡口,保证整体结构连接的稳定性,采用快装形式,平衡臂铰点连接销轴无需进行拆装,降低了其因反复拆装造成的销轴磨损,提升了销轴的使用寿命。


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    Title :

    Hinge point structure of balance arm of fast-assembly tower crane


    Additional title:

    快装式塔机平衡臂铰点结构


    Contributors:
    ZHAO JIANFENG (author) / CHEN WEI (author) / ZHU YUANJUN (author) / MO JIANMING (author) / WU FANYAN (author) / TANG CHENGCHAO (author) / HUANG ZUXIN (author)

    Publication date :

    2023-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F16C SHAFTS , Wellen



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