The luffing mechanism of the crane comprises a base, a stand column is fixedly connected to the base, an engine compartment is fixedly installed on one side of the stand column, a first arm frame is rotationally connected to the other side of the stand column, and a second arm frame rotationally connected with the stand column is arranged above the first arm frame. The other end of the first arm frame is movably connected with the other end of the second arm frame through a support, the outer end of the support is movably connected with a lifting hook through a steel wire rope, a sliding rail is arranged on the lower side of the first arm frame, a movable counterweight assembly is slidably connected to the sliding rail, and an overweight prevention assembly is further fixedly connected to the outer end of the support. The movable counterweight assembly can adjust the gravity center position of the boom in the amplitude variation process to a certain extent, so that the stability is improved, the overweight prevention assembly adjusts the resistance of the sliding rod through the weight of goods, and the influence of overweight goods on the stability of the crane is prevented.

    本发明公开了一种起重机的变幅机构,包括基座,所述基座上固定连接有立柱,该立柱的一侧固定安装有发动机舱,所述立柱另一侧转动连接有第一臂架,第一臂架上方有与立柱转动连接的第二臂架,第一臂架和第二臂架的另一端通过支架活动连接,且支架的外端通过钢丝绳活动连接有吊钩,所述第一臂架下侧设有滑轨,滑轨上滑动连接有可移动配重组件,所述支架外端还固定连接有防超重组件,可移动配重组件可以在一定程度上调整臂架在变幅过程中的重心位置,从而提高稳定性,防超重组件通过货物重量对滑杆电阻进行调节,防止货物过重对起重机的稳定性造成影响。


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    Title :

    Luffing mechanism of crane


    Additional title:

    一种起重机的变幅机构


    Contributors:
    JIN FUMIN (author)

    Publication date :

    2024-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F16F SPRINGS , Federn



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