The invention provides an engineering machinery intelligent confluence control hydraulic system, and solves the problems of poor effect and great loss during double-pump confluence of the existing engineering machinery. The engineering machinery intelligent confluence control hydraulic system comprises a first valve group, a second valve group, an electromagnetic valve, a first reversing valve, a second reversing valve, a shuttle valve and a confluence valve, wherein the first valve group is used for conducting or breaking a main control oil path, a pressure oil path of the first reversing valve and a control oil path of the second reversing valve, the shuttle valve is used for selecting the pressure oil path of the first reversing valve or the pressure oil path of the second reversing valve, and is communicated with a control cavity of a confluence valve through the electromagnetic valve, the electromagnetic valve is provided with a first position and a second position, the pressure oil path of the shuttle valve and the control cavity of the confluence valve are communicated in the first position so that the confluence valve is controlled to be in the confluence state, the pressure oil path of the shuttle valve and the control cavity of the confluence valve are disconnected in the second position so that the control cavity of the confluence valve is communicated with an oil return tank, and the confluence valve is used for conducting or breaking the pressure oil paths of the first valve group and the second valve group. The engineering machinery intelligent confluence control hydraulic system has the advantages that the structure is simple, the action is reliable, and the energy consumption is low.


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    Title :

    Engineering machinery intelligent confluence control hydraulic system


    Contributors:
    JIANG HONG (author) / WEI HONGYU (author) / ZHANG XIAOLEI (author) / SHI ZHEAN (author) / WEI XINHUAN (author)

    Publication date :

    2015-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66C Krane , CRANES



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