The invention discloses a telescopic arm frame and engineering machinery comprising the same. The telescopic arm frame comprises an outer arm, an inner arm, a roller device and one or more sliding blocks, wherein the roller device comprises a roller and a support shaft; the roller provides support for the lower surface of the inner arm; the sliding blocks are arranged between the upper surface of the lower wall of the outer arm and the lower surface of the lower wall of the inner arm and are positioned on the outer side of the roller device in the extending and retraction direction of the inner arm; when the inner arm is in a retraction state, gaps exist between the sliding blocks and the upper surface of the lower wall of the outer arm or between the sliding blocks and the lower surface of the inner arm; and when the inner arm is in an extending state, no gaps exist and the inner arm is supported on the outer arm through both the sliding blocks and the roller device. According to the telescopic arm frame, the rolling support and the sliding support manners are adopted to realize that the inner arm is supported by the outer arm, a bran-new support mode is provided, large expansion length can be realized and large torque can be borne.


    Access

    Download


    Export, share and cite



    Title :

    Telescopic arm frame and engineering machinery comprising same


    Contributors:
    TIAN HUADONG (author) / YANG BING (author) / ZHANG CHUNGUANG (author)

    Publication date :

    2015-08-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B66C Krane , CRANES



    Telescopic boom and engineering machinery

    ZHAO YU / JIANG XU / ZHOU MIN et al. | European Patent Office | 2023

    Free access

    Telescopic arm device and engineering machinery

    SHI ZHONGQIANG | European Patent Office | 2023

    Free access

    Telescopic truss arm and engineering machinery

    SHI GUOSHAN / CUI DANDAN / ZHANG DAN | European Patent Office | 2023

    Free access

    Telescopic arm support and engineering machinery

    LIU QIANG / SHEN CHANGWU / WANG LEI et al. | European Patent Office | 2021

    Free access

    Multi-stage telescopic mechanism and engineering machinery

    MA CONG | European Patent Office | 2022

    Free access