The invention relates to the field of hoisting machinery such as tower cranes special for wind power, and discloses a push-pull type fully-foldable underframe structure of a crane and a folding method, the push-pull type fully-foldable underframe structure comprises a cross beam, and the four ends of the cross beam are each rotationally connected with a linear beam; wherein the two linear beams are connected through two first large supporting rods rotationally connected with the linear beams, the two first large supporting rods are connected, each first large supporting rod is rotationally connected with a first small supporting rod, each first small supporting rod is rotationally connected with the cross beam, and a triangle is formed between the two first small supporting rods and the cross beam; the other two linear beams are connected through two second large supporting rods rotationally connected with the linear beams, and the two second large supporting rods are connected. The two second large supporting rods are each rotationally connected with a second small supporting rod, the two second small supporting rods are each rotationally connected with the cross beam, and a triangle is formed between the two second small supporting rods and the cross beam.

    本发明涉及风电专用塔式起重机等起重机械领域,公开了一种起重机推拉式且可全折叠的底架结构及折叠方法,包括十字梁,十字梁的四个端部各转动连接一个一字梁;其中两个一字梁之间通过两根与其转动连接的第一大撑杆相连,两根第一大撑杆相连,且两个第一大撑杆各自与一个第一小撑杆转动相连,两个第一小撑杆各自与十字梁转动连接,两个第一小撑杆与十字梁之间形成三角形;另外两个一字梁之间通过两根与其转动连接的第二大撑杆相连,两根第二大撑杆相连;且两个第二大撑杆各自与一个第二小撑杆转动相连,两个第二小撑杆各自与十字梁转动相连,两个第二小撑杆与十字梁之间形成三角形。


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    Title :

    Push-pull type fully-foldable underframe structure of crane and folding method of push-pull type fully-foldable underframe structure


    Additional title:

    一种起重机推拉式且可全折叠的底架结构及其折叠方法


    Contributors:
    LI PENGJU (author) / LIU BIN (author) / WANG JINFENG (author) / ZHANG JIANKANG (author) / ZHANG TINGSEN (author) / LI QIANG (author)

    Publication date :

    2022-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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