The invention relates to a tower crane anti-overturning tray type counterweight falling device and a falling method thereof, the device comprises a tower crane big arm and a rotary upper support, the tower crane big arm is installed above the rotary upper support, a cargo boom part of the tower crane big arm is located at the front side of the rotary upper support, a balance arm part is located at the rear side of the rotary upper support, the rear side of the rotary upper support is hinged with the balance arm, and the tower crane big arm is installed above the rotary upper support. The big arm of the tower crane can rotate around the hinged part; a separable structure is adopted between the front side of the rotary upper support and the cargo boom, so that the cargo boom can be separated from the front side of the rotary upper support when upwarped; an anti-overturning device is arranged below a balance weight installed at the end of the balance arm and connected with a trigger mechanism, and the trigger mechanism is fixedly connected to the front side of the upper rotary support. When the working conditions such as rope breakage and hanging anchor occur in the tower crane, the tray type balancing weight falling device enables the balancing weight to fall off in a mechanical linkage mode, the anti-overturning effect is achieved, in addition, the tray type balancing weight falling device does not depend on electrical elements such as a sensor, the false operation or failure condition of the electrical elements is avoided, design is simple, operation is easy, and reliability is high.

    一种塔机防倾覆托盘式平衡重脱落装置及其脱落方法,装置包括塔机大臂和回转上支座,塔机大臂安装在回转上支座上方,塔机大臂的起重臂部分位于回转上支座前侧,平衡臂部分位于回转上支座后侧,回转上支座后侧与平衡臂之间铰接,使塔机大臂能够绕铰接部位旋转;回转上支座前侧与起重臂之间采用可分离结构,使起重臂上翘时可以与回转上支座前侧脱离;平衡臂端部安装的平衡重下方设置防倾覆装置,防倾覆装置连接触发机构,触发机构固定连接于回转上支座前侧。当塔机出现断绳、吊锚等工况时,托盘式平衡重脱落装置通过机械联动的方式使得平衡重脱落,达到抗倾覆的作用,不仅如此,本发明不依靠传感器等电气元件,无电气元件误动作或失效情况,设计简单易操作,可靠性高。


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    Title :

    Tower crane anti-overturning tray type counterweight falling-off device and falling-off method thereof


    Additional title:

    一种塔机防倾覆托盘式平衡重脱落装置及其脱落方法


    Contributors:
    MI CHENGHONG (author) / ZHAO YIFAN (author) / ZHENG HUAIPENG (author) / HUANG SHUAI (author) / MENG KANG (author)

    Publication date :

    2023-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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