The invention proposes a multi-stage boom telescopic boom telescopic system for an aerial work vehicle. The system comprises a vertically arranged basic boom, a first-stage telescopic boom, a second-stage telescopic boom, a third-stage telescopic boom and a fourth-stage telescopic boom. The end of the basic boom is fixedly provided with a telescopic cylinder. A fourth pulley and a fifth pulley arefixedly arranged at the right end of the telescopic cylinder from top to bottom in a spaced mode. The right part of the basic boom is fixedly provided with a sixth pulley. A seventh pulley is fixedlyarranged under the right side of the sixth pulley. A limit assembly is fixedly arranged on the right part of the four-stage telescopic arm. An eighth pulley is fixedly arranged on the top of the limit assembly. A recovery wire rope is wound on the seventh pulley, and the other end of the recovery wire rope passes through the fifth pulley, the sixth pulley, the fourth pulley, and the eighth pulleyin turn. Therefore, the system has the advantages that the system is simple, compact and light in weight, the internal space of a boom body and the telescopic cylinder are fully utilized, the cross-section of each telescopic boom is small, and the vehicle performance is higher.

    本发明提出了一种多级臂伸缩式高空作业车臂架伸缩系统,包括竖向设置的基本臂、一级伸缩臂、二级伸缩臂、三级伸缩臂和四级伸缩臂,所述基本臂的臂尾固定设置有伸缩油缸,所述伸缩油缸右端从上到下间隔且固定设置有第四滑轮和第五滑轮,所述基本臂的右部固定设置有第六滑轮,所述第六滑轮右侧的下方固定设置有第七滑轮,所述四级伸缩臂的右部固定设置有限位组件,所述限位组件的顶部固定设置有第八滑轮,所述第七滑轮上绕设有回收钢丝绳,所述回收钢丝绳的另一端依次绕过第五滑轮、第六滑轮、第四滑轮和第八滑轮,借此,本发明具有简单紧凑、自重轻,充分利用了臂体内部空间及伸缩油缸,各伸缩臂截面变化小,整车性能更高的优点。


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    Title :

    Multi-stage boom telescopic boom telescopic system for aerial work vehicle


    Additional title:

    一种多级臂伸缩式高空作业车臂架伸缩系统


    Contributors:
    JI JIANYI (author) / LU XINGCHEN (author) / WEI FUZUN (author) / ZHANG SHIGONG (author) / ZHANG XUEFENG (author) / LIU ZHEN (author) / MENG FANPENG (author) / MEI XINGGUO (author) / WANG YUCHEN (author)

    Publication date :

    2020-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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