The invention relates to the technical field of hydraulic control and discloses a hydraulic system used for an automobile lifting machine. The hydraulic system comprises an oil tank, an oil pump and oil cylinders. An oil inlet of the oil pump communicates with the oil tank, and the oil pump is connected with a motor driving the oil pump to rotate. The oil cylinders are arranged in the manner thattwo oil cylinders are arranged into one set, and the two oil cylinders in each set are the first oil cylinder and the second oil cylinder correspondingly, wherein a piston rod of the first oil cylinder and a piston rod of the second oil cylinder are connected with corresponding platforms, each of the first oil cylinder and the second oil cylinder is provided with a first oil opening and a second oil opening, and a one-way valve is connected between the first oil opening of the first oil cylinder and the oil pump. The part, arranged above a corresponding piston ring, of each oil cylinder is anupper cavity body, and the part, arranged below the corresponding piston ring, of the oil cylinder is a lower cavity body. The second oil opening of each first oil cylinder communicates with the firstoil opening of the corresponding second oil cylinder, and hydraulic oil flows between the upper cavity bodies of the first oil cylinders and the lower cavity bodies of the second oil cylinders. By means of the hydraulic system used for the automobile lifting machine, the purpose of good synchronism between the oil cylinders can be achieved.

    本发明涉及液压控制技术领域,公开了一种用于汽车举升机的液压系统,其包括:油箱;油泵,油泵的入油口与油箱连通,且油泵连接有驱动其转动的马达;油缸,油缸以两两为一组的形式设置,每组中两个油缸分别为第一油缸和第二油缸,第一油缸和第二油缸的活塞杆分别与其对应的平台连接,第一油缸和第二油缸均具有第一油口和第二油口,第一油缸的第一油口与油泵之间连接有单向阀;其中,设油缸在活塞环上方的腔体为上腔体,油缸在活塞下方的腔体为下腔体,第一油缸的第二油口和第二油缸的第一油口连通,且液压油在第一油缸的上腔体和第二油缸的下腔体之间流动。本发明能达到各个油缸之间的同步性好的目的。


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    Titel :

    Hydraulic system used for automobile lifting machine


    Weitere Titelangaben:

    一种用于汽车举升机的液压系统


    Beteiligte:
    GAO KONG (Autor:in) / GAO CHANGPING (Autor:in) / ZENG FENG (Autor:in) / FENG TIANLONG (Autor:in)

    Erscheinungsdatum :

    2020-11-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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