The invention provides a telescopic boom which comprises a first boom section, a second boom section and a locking device, the first boom section is slidably arranged in the second boom section, the locking device is connected to the first boom section, the locking device comprises a driving mechanism and a locking piece connected with the driving mechanism, the locking piece comprises a first locking face, and the first locking face is provided with a second locking face. The first locking surface is parallel to the length direction of the second arm section, a second locking surface is arranged on the inner wall of the second arm section, and when the driving mechanism drives the locking piece to move towards the second locking surface, the first locking surface and the second locking surface are meshed to generate a meshing stopping effect, and the locking device is in a locking state; and when the first locking surface and the second locking surface are arranged at an interval, the locking device is in an unlocking state, and the first arm section can slide relative to the second arm section. The telescopic boom can be locked at any position in an effective stroke, the structure is simple, and the working efficiency is improved. The invention also relates to a crane.

    本发明提供一种伸缩臂架,包括第一臂节、第二臂节和锁止装置,第一臂节可滑动地设置在第二臂节内,锁止装置连接于第一臂节,锁止装置包括驱动机构以及与驱动机构连接的锁止件,锁止件包括第一锁止面,第一锁止面与第二臂节的长度方向平行,第二臂节的内壁设有第二锁止面,当驱动机构驱使锁止件向着靠近第二锁止面移动,使第一锁止面与第二锁止面啮合产生啮合止作用,锁止装置为锁止状态;当第一锁止面与第二锁止面间隔设置时,锁止装置为解锁状态,第一臂节可相对第二臂节滑动。本发明的伸缩臂架能够在有效行程内的任意位置进行锁止,结构简单,提高工作效率。本发明还涉及一种起重机。


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    Titel :

    Telescopic boom and crane


    Weitere Titelangaben:

    伸缩臂架及起重机


    Beteiligte:
    JIANG XUJIA (Autor:in) / NIE JUN (Autor:in) / SUI CHENG (Autor:in) / LIU HAO (Autor:in) / SHI YAOLEI (Autor:in)

    Erscheinungsdatum :

    2024-04-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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