The invention provides a hydraulic jack braking device. The hydraulic jack braking device includes a hydraulic jack, a threaded adapter cylinder, a first fixed part, a protective cylinder and a secondfixed part, wherein the threaded adapter cylinder is installed at the upper end of a piston rod of the hydraulic jack, the first fixed part is installed at the bottom end of the threaded adapter cylinder for locking and positioning the threaded adapter cylinder, the protective cylinder sleeves outside the piston rod of the hydraulic jack, the upper end of the protective cylinder is located outside the threaded adapter cylinder, and the second fixed part is installed at the junction of the top end of the protective cylinder and the threaded adapter cylinder and is used for locking and positioning the protective cylinder. According to the hydraulic jack braking device, a hydraulic sealing method is replaced by a mechanical method, and the piston rod position is mechanically locked, so thatthe positioning accuracy of the jack is greatly improved, and the hydraulic jack braking device can be used in high-precision measurement occasions. The safety problem of jacking object displacement caused by hydraulic leakage is completely solved, and the reliability of jack is greatly increased.

    本发明提供了一种液压千斤顶制动装置,其包括:液压千斤顶;螺纹转接筒,安装在所述液压千斤顶的活塞杆的上端部;第一固定部件,安装在所述螺纹转接筒的底端,用于锁紧定位所述螺纹转接筒;保护筒,套设在所述液压千斤顶的活塞杆外部,且所述保护筒的上端部位于所述螺纹转接筒的外部;第二固定部件,安装在所述保护筒的顶端与所述螺纹转接筒的交界处,用于锁紧定位所述保护筒。本发明液压千斤顶制动装置以机械方法代替了液压密封的方法,将活塞杆位置通过机械锁死,使千斤顶的定位精度大大提高,可以用于高精度的测量场合。彻底杜绝了液压泄露导致顶升物体位移的安全性问题,使千斤顶的可靠性大大增加。


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    Title :

    Hydraulic jack braking device


    Additional title:

    液压千斤顶制动装置


    Contributors:
    LI CHUNHUI (author) / ZHANG HAITAO (author) / ZHANG PING (author)

    Publication date :

    2020-07-14


    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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