The invention relates to a double-parallel four-connecting-rod linkage hydraulic lifting mechanism which comprises a first parallel four-connecting-rod mechanism, a second parallel four-connecting-rod mechanism, a linkage mechanism power oil cylinder and a base. The first parallel four-bar mechanism is located on the upper portion, and the bottom of the first parallel four-bar mechanism is connected with the second parallel four-bar mechanism through a linkage mechanism supporting frame and a linkage mechanism pull rod. The bottom of the second parallel four-bar mechanism is connected with the base; the linkage mechanism power oil cylinder is mounted on the base; the linkage mechanism power oil cylinder drives the second parallel four-connecting-rod mechanism to move in one direction, the linkage mechanism supporting frame and the linkage mechanism pull rod drive the first parallel four-connecting-rod mechanism to move in the opposite direction, and linkage stretching and retracting of the two parallel four-connecting-rod mechanisms can be achieved through stretching and retracting of a piston of the linkage mechanism power oil cylinder. Therefore, the hydraulic lifting function is achieved. Compared with the prior art, the invention has the advantages of short oil cylinder stroke, large extension space, small contraction volume and the like.

    本发明涉及一种双平行四连杆联动液压升降机构,包括:第一平行四连杆机构、第二平行四连杆机构、联动机构动力油缸以及底座;所述第一平行四连杆机构位于上部,底部通过联动机构支撑架和联动机构拉杆与第二平行四连杆机构相连;第二平行四连杆机构位于下部,底部与底座相连;所述联动机构动力油缸安装在底座上;所述联动机构动力油缸带动第二平行四连杆机构向一个方向运动,通过联动机构支撑架和联动机构拉杆带动第一平行四连杆机构向相反方向运动,通过联动机构动力油缸的活塞伸缩即可实现两个平行四连杆机构的联动伸缩,从而实现液压升降功能。与现有技术相比,本发明具有油缸行程短、伸展空间大、收缩体积小等优点。


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    Title :

    Double-parallel four-connecting-rod linkage hydraulic lifting mechanism


    Additional title:

    一种双平行四连杆联动液压升降机构


    Contributors:
    BIAN YONGMING (author) / CHEN LI (author) / SHAO JIE (author)

    Publication date :

    2023-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



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