The invention belongs to the technical field of lifting transport vehicles, and discloses a telescopic main body. The telescopic main body comprises a telescopic rod, a first pull rope, a first pulley, a second pull rope, a second pulley and a hydraulic cylinder; the telescopic rod comprises a first rod body, a second rod body and a third rod body which are nested layer by layer; the first end ofthe first pull rope is fixed on the first rod body, and the second end of the first pull rope is fixed on the third rod body by being wound around the first pulley; the first pulley is fixed on the second rod body, and is positioned between the axial top end of the second rod body and the axial bottom end of the third rod body; the first end of the second pull rope is fixed on the third rod body,and the second end of the second pull rope is fixed on the first rod body by being wound around the second pulley; the second pulley is fixed on the second rod body and is positioned between the axialbottom end of the second rod body and the axial top end of the first rod body; and a cylinder body and a piston rod of the hydraulic cylinder are fixed on the second rod body and the first rod body respectively. The telescopic main body can stably and reliably realize large-stroke lifting.

    本发明属于升降运输车技术领域,公开了一种伸缩主体,包括:伸缩杆、第一拉绳、第一滑轮、第二拉绳伸、第二滑轮以及液压缸;伸缩杆包括:逐层嵌套的第一杆体、第二杆体以及第三杆体;第一拉绳的第一端固定在第一杆体上,第一拉绳的第二端绕过第一滑轮固定在第三杆体,第一滑轮固定在第二杆体上且第一滑轮位于第二杆体的轴向顶端和第三杆体的轴向底端之间;第二拉绳的第一端固定在第三杆体上,第二拉绳的第二端绕过第二滑轮固定在第一杆体,第二滑轮固定在第二杆体上且第二滑轮位于第二杆体的轴向底端和第一杆体的轴向顶端之间;液压缸的缸体和活塞杆分别固定在第二杆体和第一杆体上。本发明提供的伸缩主体能稳定可靠的实现大行程举升。


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    Title :

    Lifting transport vehicle and telescopic main body


    Additional title:

    一种升降运输车以及伸缩主体


    Contributors:
    ZHOU FEI (author) / BAO GENG (author) / PENG GUOXI (author) / SHAO PU (author)

    Publication date :

    2020-07-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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