The tower crane comprises a tower crane body, the balance weight, a movable guide rail, a steel wire rope, a load trolley, a luffing mechanism, a plurality of fixed pulleys and a plurality of movable pulleys, the balance weight is installed on a balance arm of the tower crane body through the movable guide rail, and the load trolley and the luffing mechanism are installed on a cargo boom of the tower crane body. Reversing pulleys are arranged at the ends of the balance arm and the cargo boom, an upper reversing pulley, an upper movable pulley and an upper fixed pulley are arranged on the upper surface of the balance arm, a lower fixed pulley and a lower movable pulley are arranged on the lower surface of the balance arm, and five sections of steel wire ropes are arranged. A luffing mechanism does not need to be additionally arranged independently, the balance weight does not need to be replaced and disassembled when the tower crane is used for changing the arm, the moving range of the balance weight is adjusted by adjusting the number of pulleys in the movable pulley block and the fixed pulley block and the length of a steel wire rope, moment balance of the two sides of the cargo boom and the balance arm is adjusted, and therefore the purpose of changing the arm is achieved.

    本发明公开了一种可调平衡重的塔式起重机,包括塔机本体、平衡重、移动导轨、钢丝绳、载重小车、变幅机构、若干定滑轮、若干动滑轮,所述平衡重通过移动导轨安装在塔机本体的平衡臂上,所述载重小车、变幅机构安装在塔机本体的起重臂上,所述平衡臂和起重臂的端部均设有换向滑轮,平衡臂上表面处设有上换向滑轮、上动滑轮和上定滑轮,平衡臂的下表面设有下定滑轮、下动滑轮,钢丝绳设有五段。不需要单独增加变幅机构,塔机变臂使用时无需更换和拆卸平衡重,通过调节动、定滑轮组中滑轮的数量及钢丝绳长度,来调节平衡重的移动范围,调节起重臂与平衡臂两侧力矩平衡,从而达到变臂使用的目的。


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    Title :

    Tower crane with adjustable balancing weight


    Additional title:

    一种可调平衡重的塔式起重机


    Contributors:
    WEN CHAOHUI (author) / ZHOU BING (author) / HUANG JIANMEI (author) / MOON HO-IL (author) / NING ZHENGCHAO (author) / ZENG DEXUE (author) / WU YIFAN (author) / ZHAO TIANCHEN (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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