The invention belongs to the technical field of jacks, and particularly relates to a large-tonnage jack. The jack comprises a jack body, wherein a jacking fixed seat and a pump body seat are arrangedat the top of the jack body; a jacking oil cavity is arranged in the jacking fixed seat; a jacking cylinder capable of linearly moving in a reciprocating mode in the vertical direction is arranged inthe jacking oil cavity; and a pump body oil cavity is arranged in the pump body seat. Through the arrangement of a multi-angle anti-deviation clamping jacking component, in the jacking process, the multi-angle anti-deviation clamping jacking component abuts against a to-be-jacked part all the time, the multi-angle fixing effect is achieved, the jacked part cannot slide in the jacking process, andthe stability of the top in the jacking process is improved when the multi-angle anti-deviation clamping jacking component is used for coping with some large-tonnage objects; and when the needed jacking height is large, the height of a height adjusting piece can be adjusted firstly, the jacking speed and efficiency are improved, bricks do not need to be cushioned at the bottom of the jack body, the stability of the bottom is guaranteed, the upper abutting face and the lower abutting face are stable and not prone to shaking, and the jacking effect is good.

    本发明属于千斤顶技术领域,尤其涉及一种大吨位千斤顶。本发明,包括千斤顶主体,所述的千斤顶主体顶部设有顶升固定座和泵体座,所述的顶升固定座内设有顶升油腔,所述的顶升油腔内设有可沿竖直方向往复直线运动的顶升筒,所述的泵体座内设有泵体油腔。本发明通过设置多角度防偏夹持顶托组件,在顶升过程中,多角度防偏夹持顶托组件始终与待顶升部位相抵接,起到多角度固定的作用,确保顶升过程中顶升部位不会发生滑动,应对一些大吨位物件时提高了顶升时顶部的稳固性,当所需顶升高度较大时,可先调节高度调节件的高度,提高顶升的速度和效率,无需在千斤顶主体底部垫砖头,确保底部的稳定性,上下抵接面稳定不易晃动,顶升效果好。


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    Title :

    Large-tonnage jack


    Additional title:

    大吨位千斤顶


    Contributors:
    LIN HUA (author)

    Publication date :

    2021-03-12


    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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