The invention discloses a crane telescopic arm and a crane, and relates to the technical field of engineering machinery. The crane telescopic arm comprises a basic arm body and a multi-section telescopic arm body embedded in the basic arm body, wherein a first telescopic arm is located at the tail end, away from the basic arm body, of the multi-section telescopic arm body, and the first telescopicarm, a second telescopic arm and a third telescopic arm are sequentially arranged. A first rotating wheel is arranged on an arm head of the second telescopic arm, a second rotating wheel is arrangedat the arm tail of the second telescopic arm, and the first rotating wheel and the second rotating wheel are located on the two opposite sides of the second telescopic arm. A first pull cable is woundaround the first rotating wheel, and the two ends of the first pull cable are connected with the arm tail of the first telescopic arm and the arm tail of the third telescopic arm correspondingly. A second pull cable is wound around the second rotating wheel, and the two ends of the second pull cable are connected with the arm tail of the first telescopic arm and the arm head of the third telescopic arm correspondingly. The problem that since the last section of arm is small in sectional size, no arm pin assembly can be arranged can be solved, and the applicability of the crane can be easily improved.

    本发明公开了一种起重机伸缩臂及起重机,涉及工程机械技术领域。包括基本臂,以及嵌套在基本臂内的多节伸缩臂,其中,第一伸缩臂位于多节伸缩臂远离基本臂的末端,第一伸缩臂、第二伸缩臂和第三伸缩臂依次设置;第二伸缩臂的臂头设置有第一转动轮,第二伸缩臂的臂尾设置有第二转动轮,第一转动轮和第二转动轮位于第二伸缩臂的相对两侧;第一拉索绕过第一转动轮,且第一拉索的两端分别与第一伸缩臂的臂尾和第三伸缩臂的臂尾连接;第二拉索绕过第二转动轮,且第二拉索的两端分别与第一伸缩臂的臂尾和第三伸缩臂的臂头连接。能够克服因末节臂截面尺寸较小,无法设置臂销组件的问题,有利于提升起重机的适用性。


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    Title :

    Crane telescopic arm and crane


    Additional title:

    一种起重机伸缩臂及起重机


    Contributors:
    ZHOU BIN (author) / HU DINGFENG (author)

    Publication date :

    2020-04-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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