The invention discloses a hand-cranking type lifting forklift. The hand-cranking type lifting forklift comprises a bottom plate, universal wheels are mounted at the four corners of the bottom end of the bottom plate, linear bearings are mounted on the edges of the two sides of the top end of the bottom plate, a balance frame is placed at the tops of the linear bearings in the inner side direction,fork rotating shafts are embedded in the centers of the two sides, around the center, of the balance frame, the bottom ends of the fork rotating shafts are connected with jackets, and the top ends ofthe fork rotating shafts are connected with the balance frame through fixing bolts. The hand-cranking type lifting forklift is scientific and reasonable in structure and safe and convenient to use, aworm wheel and worm structure is connected with a trapezoidal threaded lead screw, the worm is rotated through a hand wheel to drive the worm wheel to rotate, the center of the worm wheel achieves lifting of a platform through conduction of the trapezoidal threaded lead screw, a trapezoidal thread is large in pitch, and the thread is thick, therefore, relatively large loads can be borne, moreover, the conduction performance is stable, three forks can hold relatively large workpieces through the relatively small parts by adjusting the angles of the forks, and the lengths of the forks can be adjusted to adapt to the workpieces at different stations.

    本发明公开了一种手摇式升降叉车,包括底板,所述底板底端四角均安装有万向轮,所述底板顶端两侧的边部均安装有直线轴承,所述直线轴承内侧向顶部放置有平衡架,所述平衡架围绕中心处的两侧中心嵌入安装有叉子转轴,所述叉子转轴底端连接有夹套,所述叉子转轴顶端通过固定螺栓与平衡架相连,本发明结构科学合理,使用安全方便,通过蜗轮蜗杆结构连接梯形螺纹丝杆,通过手轮转动蜗杆带动涡轮旋转,涡轮中心又通过梯形螺纹丝杆传导实现平台的升降,梯形螺纹螺距大、螺纹厚,因此能够承载较大载荷,而且传导性能平稳,三个叉子通过调节叉子角度实现以较小的部件拖住较大的工件,而且叉子还能调节长短以适应不同工位的工件。


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    Title :

    Hand-cranking type lifting forklift


    Additional title:

    一种手摇式升降叉车


    Contributors:
    GUO LIQIANG (author) / DAI YUHUI (author) / ZHANG HONGLIANG (author)

    Publication date :

    2020-10-13


    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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