The single-cylinder synchronous telescopic device comprises a telescopic oil cylinder, a support, a rope row, a telescopic inhaul cable, a recovery inhaul cable, a basic arm, a first telescopic arm, a second telescopic arm and a third telescopic arm, the first telescopic arm, the second telescopic arm and the third telescopic arm are sequentially arranged in the basic arm in a stacked and sleeved mode, the support is fixed to the upper portion of the telescopic oil cylinder, one end of the telescopic oil cylinder is fixed to the basic arm, and the other end of the telescopic oil cylinder is fixed to the recovery inhaul cable. One end of the rope row is fixed on the basic arm, the other end of the rope row bypasses a first pulley on the telescopic oil cylinder and is fixed on the second extending arm, one end of the telescopic inhaul cable is fixed on the first extending arm, the other end of the telescopic inhaul cable bypasses a second pulley on the second extending arm and is fixed on the third extending arm, one end of the recovery inhaul cable is fixed on the first extending arm, and the other end of the recovery inhaul cable is fixed on the second extending arm. And the other end of the telescopic oil cylinder bypasses a third pulley on the bracket and a fourth pulley on the telescopic oil cylinder and is fixed on the three-extending arm. The device is balanced in stress, not easy to damage, small in size and light in weight.

    本发明公开了一种单缸同步伸缩装置及起重机,包括伸缩油缸、支架、绳排、伸缩拉索、回收拉索、基本臂、以及依次叠套在基本臂内的一伸臂、二伸臂、三伸臂,所述支架固定在伸缩油缸上部,所述伸缩油缸一端固定在基本臂上,另一端固定在一伸臂上,所述绳排一端固定在基本臂上,另一端绕过伸缩油缸上的第一滑轮固定在二伸臂上,所述伸缩拉索一端固定在一伸臂上,另一端绕过二伸臂上的第二滑轮固定在三伸臂上,所述回收拉索一端固定在一伸臂上,另一端绕过支架上第三滑轮与伸缩油缸上的第四滑轮固定在三伸臂上。本发明受力均衡、不易损坏、尺寸小、重量轻。


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    Title :

    Single-cylinder synchronous telescopic device and crane


    Additional title:

    单缸同步伸缩装置及起重机


    Contributors:
    SHANG XIAOHENG (author) / REN LUYAO (author) / XIAO YANFENG (author) / CAI JIANGZHE (author) / GUO JINGLEI (author)

    Publication date :

    2023-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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