The invention relates to a three-portal-frame structure, and belongs to the technical field of manned lifting equipment. The three-portal-frame structure comprises a fixed part, a lifting part and a lifting mechanism. The fixed part comprises a chassis, and the lifting mechanism comprises a hydraulic lifting assembly and a chain wheel lifting assembly. The lifting part comprises a mounting plate used for mounting of a take-out platform. The mounting plate acts through ascending and descending of a second movable portal frame and ascends and descends by being assisted by second chain wheels and second chains. A movable portal frame is guided through guide elements and corresponding pieces thereof, and is oriented through orientation elements and corresponding pieces thereof, and the lifting process is stable and smooth through the combined action of the guide elements and the corresponding pieces thereof and the orientation elements and the corresponding pieces thereof.


    Access

    Download


    Export, share and cite



    Title :

    Three-portal-frame structure


    Contributors:
    XU SHUGEN (author)

    Publication date :

    2015-11-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



    Wide-view three-stage portal frame

    XIN GUANGHUI / JIN RUDENG / MAO YUNJIE et al. | European Patent Office | 2024

    Free access

    Three-portal-frame material taking machine

    XU SHUGEN | European Patent Office | 2015

    Free access

    Wide-view three-stage portal frame

    DING LIANG / CHEN XIAOHONG / YE JIANFENG et al. | European Patent Office | 2025

    Free access

    Portal frame

    LYU DONG / WU SHUHAO / LI BO | European Patent Office | 2024

    Free access

    Portal frame and portal crane

    TAO CHUANG / LIU GANG / MA SHIYAN | European Patent Office | 2021

    Free access