The invention discloses a landing leg leveling hydraulic system and an overhead working truck. The landing leg leveling hydraulic system comprises a first electromagnetic directional valve; a flow distributing and collecting unit; the oil cylinder unit comprises a first oil cylinder, a second oil cylinder, a third oil cylinder and a fourth oil cylinder, a rodless cavity of the first oil cylinder and a rodless cavity of the second oil cylinder are both communicated with a first flow distributing oil port of the first flow distributing and collecting valve, and a rodless cavity of the third oil cylinder is communicated with a second flow distributing oil port of the second flow distributing and collecting valve; a rod cavity of the first oil cylinder is communicated with a first flow distributing oil port of the second flow distributing and collecting valve, a rod cavity of the second oil cylinder is communicated with a second flow distributing oil port of the second flow distributing and collecting valve, and a rodless cavity of the third oil cylinder and a rodless cavity of the fourth oil cylinder are both communicated with a second flow distributing oil port of the first flow distributing and collecting valve. A rod cavity of the third oil cylinder is communicated with a first flow distributing oil port of the third flow distributing and collecting valve, and a rod cavity of the fourth oil cylinder is communicated with a second flow distributing oil port of the third flow distributing and collecting valve.

    本发明公开了一种支腿调平液压系统以及高空作业车。支腿调平液压系统包括:第一电磁换向阀;分流集流单元;以及油缸单元,所述油缸单元包括第一油缸、第二油缸、第三油缸以及第四油缸,所述第一油缸的无杆腔以及所述第二油缸的无杆腔均与所述第一分流集流阀的第一分流油口连通,所述第一油缸的有杆腔与所述第二分流集流阀的第一分流油口连通,所述第二油缸的有杆腔与所述第二分流集流阀的第二分流油口连通,所述第三油缸的无杆腔以及所述第四油的无杆腔均与所述第一分流集流阀的第二分流油口连通,所述第三油缸的有杆腔与所述第三分流集流阀的第一分流油口连通,所述第四油缸的有杆腔与所述第三分流集流阀的第二分流油口连通。


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    Title :

    Landing leg leveling hydraulic system and overhead working truck


    Additional title:

    支腿调平液压系统以及高空作业车


    Contributors:
    CAO XIAOFENG (author) / LIU GUOLIANG (author)

    Publication date :

    2023-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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