The invention belongs to the technical field of hydraulic lifting devices, and particularly relates to an electric hydraulic jack and a synchronous lifting control system. The electric hydraulic jack is provided with an oil way distribution module, an oil inlet channel and an oil outlet channel are formed in the oil way distribution module, a first oil inlet and a second oil inlet are formed in the oil inlet channel, the hydraulic oil output end of a hand pump communicates to the second oil inlet, the output end of an oil pump communicates to the first oil inlet, and therefore the hand pump and the electrically-driven oil pump are ingeniously combined together to supply oil to the jack, and the jack is more convenient to work. The synchronous lifting control system comprises multiple electric hydraulic jacks, displacement sensors, first electromagnetic proportional valves, second electromagnetic proportional valves and motors on the electric hydraulic jacks are all in signal connection to a main controller, and therefore synchronous ascending and descending of the jacks can be controlled, jacking of an airplane is more stable in the jacking process of the airplane, and it is ensured that the airplane can ascend and descend horizontally.

    本发明属于液压升降装置技术领域,尤其为一种电动液压千斤顶及同步升降控制系统,其中,该电动液压千斤顶设有油路分配模块,油路分配模块中设有进油道和出油道,进油道上设有第一进油口、第二进油口,手摇泵的液压油输出端连通到第二进油口,而油泵的输出端连通到第一进油口,从而巧妙的将手摇泵和电驱动的油泵结合在一起用于为千斤顶供油,工作时更加方便;该同步升降控制系统包括多个电动液压千斤顶,各电动液压千斤顶上的位移传感器、第一电磁比例阀、第二电磁比例阀和电机均信号连接到主控制器,从而能够控制各千斤顶同步升降,使得对飞机顶升过程中,飞机的顶升更加平稳,确保飞机能够水平升降。


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    Title :

    Electric hydraulic jack and synchronous lifting control system


    Additional title:

    电动液压千斤顶及同步升降控制系统


    Contributors:
    ZHANG YONG (author) / WANG RONG (author) / ZHANG TIEJUN (author)

    Publication date :

    2021-07-23


    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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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