The invention discloses a telescopic truss arm inter-section self-locking device and a crane, and belongs to the technical field of cranes. According to the invention, an inter-arm-section locking mode of pin shaft locking is abandoned, the operation of inserting pins and pulling pins is avoided, and when the inner arm section moves to a position required by operation, the inner arm section can be automatically locked without additional auxiliary power and a detection device, so that the axial force is transmitted, the bearing function of the truss arm is realized, and the working efficiency is improved. The problems of high positioning precision requirement and difficulty in mounting due to the fact that arm sections of an existing telescopic truss arm are locked through pin shafts are solved.

    本发明公开了一种伸缩式桁架臂臂节间自锁装置及起重机,属于起重机技术领域。本发明摒弃了销轴锁定的臂节间锁定方式,规避了插销及拔销的操作,当内臂节移动至作业所需位置时,不需要额外辅助动力及检测装置便可自动实现锁定,从而传递轴向力、实现桁架臂的承载功能,解决了目前伸缩式桁架臂臂节间锁定采用销轴锁定而定位精度要求高和安装困难的问题。


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    Title :

    Telescopic truss arm inter-section self-locking device and crane


    Additional title:

    一种伸缩式桁架臂臂节间自锁装置及起重机


    Contributors:
    SHI GUOSHAN (author) / CUI DANDAN (author)

    Publication date :

    2023-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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