The invention discloses a telescopic boom and a crane, relates to the field of engineering machinery and aims at optimizing the structure of existing telescopic booms. The telescopic boom comprises at least two telescopic arms which sleeve with each other; an arm pin structure is arranged between two adjacent telescopic arms, and is positioned on the side surface of each telescopic arm. Compared with the prior art which adopts an upper-mounted arm pin system, for the telescopic boom provided by the embodiment of the invention, the arm pin structure is arranged on the side surface of each telescopic arm, the arm pins of the arm pin structure basically do not need to overcome the gravity during restoration, required restoring force is small, and the requirements on a restoring spring are lowered.


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    Titel :

    Telescopic boom and crane


    Beteiligte:
    CAO LIFENG (Autor:in) / TONG XUEFENG (Autor:in) / WANG XIAOQIANG (Autor:in) / ZHANG QINGBIN (Autor:in) / SONG XINDI (Autor:in) / SUN KAI (Autor:in)

    Erscheinungsdatum :

    2015-04-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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