The invention discloses a lifting arm with adjustable upwarp degree, which comprises a tower top, a lifting arm and a trolley, and the trolley is movably mounted on the lifting arm; comprising a hydraulic cylinder; the cargo boom comprises a lower chord member and an upper chord member; the upper chord member is hinged with the tower top; and the lower chord member is connected with the tower top through a hydraulic oil cylinder. The production and manufacturing difficulty of workers can be reduced, the production time and the manufacturing cost are saved, the labor intensity is reduced, and the production efficiency is improved; the adjustment of the upwarp degree of the cargo boom can better meet the horizontal hoisting working condition of the cargo boom, so that the cargo boom tends to be in a horizontal state during working, and the situation that a trolley climbs a slope or has jacking component force is reduced.

    本发明公开了一种上翘度可调式起重臂,包括塔顶,起重臂和小车,所述小车可移动安装在起重臂上;包括液压油缸;所述起重臂包括下弦杆和上弦杆;所述上弦杆与塔顶铰接;所述下弦杆通过液压油缸与塔顶连接。本发明可以降低工人生产制造难度,节约生产时间和制造成本,降低劳动强度,提高生产效率;起重臂的上翘度调节可以更好的满足起重臂的水平吊载工况,使起重臂工作时趋近于水平状态,减少小车爬坡或者小车有冲顶分力的情况。


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    Title :

    Crane boom with adjustable upwarp degree


    Additional title:

    一种上翘度可调式起重臂


    Contributors:
    MI CHENGHONG (author) / LIU ZUNZHENG (author)

    Publication date :

    2023-07-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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