The invention provides a cargo boom and a crane, and relates to the technical field of engineering machineries. The cargo boom comprises a plurality of sections of cylinder arms which are sequentiallylapped, a first sliding block is arranged at the lapping position of two adjacent sections of cylinder arms, the first sliding block is arranged on the outer wall of an arm tail of one section of oneof the cylinder arms, is arranged in the lateral directions of the cylinder arms, the first sliding block is propped against the inner wall of the one section of the other one of the cylinder arms, and the cargo boom comprises a second sliding block. The second sliding block is arranged at the lap joint position of every two adjacent cylinder arms in the lateral direction of the cylinder arms, the second sliding block is positioned on the side, close to the lap joint edge, of the first sliding block, and two adjacent sections of cylinder arms are propped against each other through the secondsliding block, and from the above we can know that the second sliding block has the effect of relieving the problem of sidewise bending in the lateral direction of the cylinder arms in a manner of adding a fulcrum, so that the service life and the safety of the cargo boom are prolonged and improved, and the service life and the safety of the crane are further improved.

    本发明提供了一种起重臂及起重机,涉及工程机械的技术领域,起重臂包括多节依次搭接的筒臂,相邻的两节筒臂的搭接处设置有第一滑块,第一滑块设置在其中一节筒臂的臂尾处的外壁上,且第一滑块设置在筒臂的侧向方向上;第一滑块与另一节筒臂的内壁抵接;起重臂包括:第二滑块;第二滑块设置在相邻的两节筒臂的搭接处且沿筒臂的侧向方向上;且位于第一滑块靠近搭接处边沿的一侧;相邻的两节筒臂通过第二滑块抵接。由上可知,第二滑块的作用为:在筒臂的侧向上用增加支点的方式缓解旁弯的问题,从而提高起重臂的使用寿命和安全性,进而提高起重机的使用寿命和安全性。


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    Title :

    Cargo boom and crane


    Additional title:

    起重臂及起重机


    Contributors:
    YU JIKAI (author) / YOU HAOJIE (author) / YU LU (author)

    Publication date :

    2020-11-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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