The invention relates to the technical field of cranes, and discloses a crane truss arm which comprises a truss arm body, a pulley is rotationally connected to the inner wall of the truss arm body, a steel rope is arranged at the top of the truss arm body, and a limiting component is arranged in the truss arm body; the limiting component comprises a fixing frame, the end of the fixing frame is fixedly connected with the inner wall of the truss arm, a hydraulic rod is fixedly connected to the surface of the fixing frame, a synchronous rod is fixedly connected to the telescopic end of the hydraulic rod, and a sliding groove frame is fixedly connected to the end of the synchronous rod. The truss arm supports the steel rope through the pulley, when the steel rope works, the hydraulic rod is driven to extend outwards, when the hydraulic rod extends, the sliding groove frame is pushed to slide on the surface of the groove plate through the synchronizing rod, and the sliding groove frame slides on the inner wall of a groove of the groove plate through the stabilizing block; the sliding groove frame and the stabilizing block are matched with each other to improve the stability of the synchronous rod in the moving process, the hydraulic rod is prevented from being subjected to large pressure, and the synchronous rod pushes the inclined plate to move towards the outer end of the truss arm through the positioning disc in the moving process.

    本发明涉及起重机技术领域,且公开了一种起重机桁架臂,包括桁架臂,桁架臂的内壁转动连接有滑轮,桁架臂的顶部设置有钢绳,桁架臂的内部设置有限位部件;限位部件包括固定架,固定架的端部与桁架臂的内壁固定连接,固定架的表面固定连接有液压杆,液压杆的伸缩端固定连接有同步杆,同步杆的端部固定连接有滑槽架。本发明桁架臂通过滑轮对钢绳进行支撑,钢绳在作业时,驱动液压杆向外延伸,液压杆在延伸时通过同步杆推动滑槽架在凹槽板的表面滑动,滑槽架通过稳定块在凹槽板的凹槽内壁滑动,滑槽架与稳定块相互配合提高同步杆在移动时的稳定性,避免液压杆受到较大的压力,同步杆在移动时通过定位盘推动斜板向桁架臂的外端移动。


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    Title :

    Crane truss arm


    Additional title:

    一种起重机桁架臂


    Contributors:
    TIAN YE (author) / TIAN YUANBO (author) / SUN YUDONG (author)

    Publication date :

    2024-12-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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