The invention provides a crane boom, a luffing method thereof and a crane, and the crane boom comprises an auxiliary boom (10) which comprises a first connecting part (11) and a second connecting part (12); the connecting frame (20) comprises a third connecting part (21) and a fourth connecting part (22), and the third connecting part (21) is rotatably connected with the first connecting part (11); the first pulling plate (30) is rotatably connected with the second connecting part (12); the second pulling plate (40) is rotatably connected with the fourth connecting part (22), the second pulling plate (40) is rotatably connected with the first pulling plate (30), and the connecting position of the second pulling plate (40) and the first pulling plate (30) is adjustable, so that angle adjustment of amplitude variation of the auxiliary arm (10) relative to the connecting frame (20) is achieved by adjusting the connecting position of the second pulling plate (40) and the first pulling plate (30). The crane comprises a crane boom.

    本发明提供了一种起重机臂架及其变幅方法和起重机,包括:副臂(10),包括第一连接部(11)和第二连接部(12);连接架(20),包括第三连接部(21)和第四连接部(22),第三连接部(21)与第一连接部(11)可转动地连接;第一拉板(30),与第二连接部(12)可转动地连接;以及第二拉板(40),与第四连接部(22)可转动地连接,第二拉板(40)与第一拉板(30)可转动地连接且连接位置可调,以通过调节第二拉板(40)和第一拉板(30)的连接位置实现副臂(10)相对于连接架(20)发生变幅的角度调节。其中,起重机包括起重机臂架。


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    Titel :

    Crane boom, luffing method thereof and crane


    Weitere Titelangaben:

    起重机臂架及其变幅方法和起重机


    Beteiligte:
    CHU FULING (Autor:in) / ZHAO QINGLI (Autor:in) / LI KAI (Autor:in) / DAI XIANGFU (Autor:in)

    Erscheinungsdatum :

    2022-03-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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