The invention provides a vertical lifting mechanism which comprises an upper shell, a lower shell, a driving gear, a driven gear, a spline guide rod, an internal spline hollow column, a lifting sleeve, a thrust ball bearing and a deep groove ball bearing, and an internal thread is arranged in a shaft hole of the driven gear; the lower end of the internal spline hollow column is mounted on the mounting table through a bolt, the lifting sleeve is provided with an axial inner hole, and external threads are arranged on the periphery of the lifting sleeve; the outer ring of the deep groove ball bearing is mounted on the inner hole wall of the lifting sleeve in a transition fit or small interference fit manner; the inner ring of the deep groove ball bearing sleeves the outer peripheral surface of the internal spline hollow column in a clearance fit manner; the lifting sleeve is screwed with the internal thread of the shaft hole of the driven gear through the external thread, a thrust ball bearing is mounted at the upper end part of the lifting sleeve, the spline guide rod is inserted into the internal spline hollow column from top to bottom, a disc part is arranged at the upper end of the spline guide rod, and the lower surface of the disc part is in contact fit with the thrust ball bearing. The device has the advantages of compact and ingenious structure, accurate control and the like.

    本发明提供了一种垂直升降机构,包括上壳体、下壳体、主动齿轮、从动齿轮、花键导向杆、内花键空心柱、升降套筒、推力球轴承和深沟球轴承,从动齿轮的轴孔内设有内螺纹;内花键空心柱的下端通过螺栓安装在安装台上,升降套筒具有轴向的内孔,其外周设有外螺纹;深沟球轴承外圈以过渡配合或小过盈配合的方式安装于升降套筒内孔壁上,深沟球轴承内圈以间隙配合的方式套设于内花键空心柱的外周面;升降套筒通过外螺纹与从动齿轮轴孔的内螺纹相旋接,升降套筒的上端部安装有推力球轴承,花键导向杆从上往下插接于内花键空心柱中,花键导向杆的上端设有圆盘部,该圆盘部的下表面与推力球轴承接触配合。本发明具有结构紧凑巧妙、控制精准等优点。


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    Title :

    Vertical lifting mechanism


    Additional title:

    一种垂直升降机构


    Contributors:
    DENG WEI (author) / DONG RENZE (author) / LIU XING (author)

    Publication date :

    2023-07-04


    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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