The invention provides a folding arm support and engineering machinery. The folding arm support comprises a lower knuckle arm and a middle arm, wherein the lower knuckle arm can be pivotally connected with a machine body of the engineering machine; and the middle arm is connected with the lower knuckle arm in a pivoted mode so as to pivot between a folding position where the middle arm is overturned to the position above the lower knuckle arm and an unfolding position where the middle arm is unfolded relative to the lower knuckle arm, wherein a hinge device is arranged on the middle arm, the middle arm can be folded around the hinge device, and the overturning direction and the folding direction of the middle arm are different from each other. By overturning and folding in two different directions, the size of the long-arm type arm support can be effectively reduced during transportation, so that the long-arm type arm support can be carried on the machine body of engineering machinery. Therefore, the folding arm support does not need to be disassembled, can be transported only by simple folding, and is time-saving and labor-saving. And in addition, through the arm support folding mode, single-machine transportation of a whole long-arm-frame crawler crane is achieved, and the transportation cost is reduced.

    本发明提供了折叠臂架及工程机械。折叠臂架包括:下节臂,所述下节臂能够与工程机械的机身枢转连接;中间臂,所述中间臂与所述下节臂枢转连接,以在翻转至所述下节臂上方的收起位置和相对于所述下节臂展开的展开位置之间枢转;其中,所述中间臂上设置有铰链装置并且所述中间臂能够围绕所述铰链装置进行折叠,所述中间臂的翻转方向与折叠方向彼此不同。通过在两个不同方向上进行翻转和折叠,能够在运输时有效地将长臂式臂架的尺寸缩小从而搭载在工程机械的机身上。由此,使得本发明提供的折叠臂架无需拆卸,仅需简单的折叠即可进行运输,省时省力。并且本发明通过臂架折叠的方式,实现了诸如长臂架履带起重机整机的单台运输,降低了运输费用。


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    Title :

    Folding arm support and engineering machinery


    Additional title:

    折叠臂架及工程机械


    Contributors:
    XU HONGYONG (author) / HUANG BIN (author) / SHI JIANMING (author)

    Publication date :

    2021-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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