The invention relates to a boom structure, a boom system and a crane. The boom structure comprises at least two layers of single arm sections (10a, 10b) which can be nested layer by layer according to the size of the diameter of the cross sections, and a connecting section (20) provided with a connecting part (24) used for being fixedly connected with at least one end of each layer of single arm sections (10a, 10b) in the at least two layers of single arm sections (10a, 10b), wherein the at least two layers of single arm sections (10a, 10b) are nested layer by layer under the reinforced use working condition of the arm section structure, the connecting section (20) is arranged at at least one end of the at least two layers of single arm sections (10a, 10b) nested layer by layer, and the connecting part (24) of the connecting section (20) is fixedly connected with the end parts on the same side of each layer of single arm sections (10a, 10b). According to the embodiments, the utilization rate of a boom for hoisting medium-sized parts or below can be increased while the hoisting requirement of overweight parts is met.

    本公开涉及一种臂架结构、臂架系统及起重机。臂架结构包括:按截面口径的尺寸可逐层嵌套的至少两层单臂节(10a,10b);连接节(20),具有用于与所述至少两层单臂节(10a,10b)中各层单臂节(10a,10b)的至少一端均固定连接的连接部(24),其中,在所述臂节结构的加强使用工况下,所述至少两层单臂节(10a,10b)逐层嵌套,所述连接节(20)设置在逐层嵌套的所述至少两层单臂节(10a,10b)至少一端,且所述连接节(20)的连接部(24)与各层单臂节(10a,10b)同侧的端部均固定连接。本公开实施例能够在满足超重件吊装需求的同时,提升吊装中型件以下的臂架利用率。


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    Title :

    Boom structure, boom system and crane


    Additional title:

    臂架结构、臂架系统及起重机


    Contributors:
    ZHOU YULONG (author) / ZHAO JIANGPING (author) / SUN LI (author) / MENG JINJUN (author)

    Publication date :

    2021-07-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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