The invention relates to the technical field of cranes, and discloses a telescopic arm locking device, a telescopic arm system and a crane. The cylinder pin assembly comprises a cylinder pin arranged in the seat body; and an arm pin insertion and extraction assembly. The arm pin inserting and pulling assembly comprises two sets of arm pin oil cylinders arranged on the base body, and at least two arm pin oil cylinders exist in each set of arm pin oil cylinders. The matching seat is connected with the pin pulling driving end of the arm pin oil cylinder; one end of the matching piece is fixed on the matching seat between the adjacent arm pin oil cylinders, and the other end of the matching piece extends into the seat body; the cylinder pin assembly and the arm pin inserting and pulling assembly are integrated to the same seat body and located on the adjacent working faces, the arm pin is sleeved with the clamping groove of the matching seat, and the locking and unlocking processes of the arm pin can be completed by driving the clamping groove to move through the pin pulling driving end connected with the matching seat. The overall size of the device is small, the size of the device in the telescopic direction of the telescopic arm can be effectively reduced, and an extra telescopic stroke is provided for designing the cargo boom.

    本发明涉及起重机技术领域,公开了伸缩臂锁定装置、伸缩臂系统及起重机,伸缩臂锁定装置包括:座体;缸销组件,包括设置于座体内的缸销;以及臂销插拔组件;臂销插拔组件包括:两组臂销油缸,设置于座体,每组臂销油缸中存在至少两个臂销油缸;配合座,与臂销油缸的拔销驱动端连接;配合件,一端在相邻的臂销油缸之间固定于配合座,另一端伸入座体;本发明将缸销组件与臂销插拔组件集成至同一座体,缸销组件与臂销插拔组件位于相邻的工作面,配合座的卡槽套设至臂销,由与自身连接的拔销驱动端驱动移动即可完成臂销的锁定和解锁过程,装置整体的体积较小且能够有效降低自身沿着伸缩臂的伸缩方向的尺寸,为起重臂设计时提供了额外的可伸缩行程。


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    Title :

    Telescopic arm locking device, telescopic arm system and crane


    Additional title:

    伸缩臂锁定装置、伸缩臂系统及起重机


    Contributors:
    YIN LELONG (author) / YANG CHENG (author)

    Publication date :

    2025-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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