The invention discloses a precise lifting machine tool for a travelling crane. The precise lifting machine tool for the travelling crane comprises a cylinder body, an upper end cover, an upper piston rod, a piston, a spring, a lower piston rod, a lower end cover, a two-position two-way electromagnetic ball valve and a one-way flow control valve. The precise lifting machine tool for the travelling crane is additionally mounted based on a normal travelling crane, and the power on and off of the electromagnetic ball valve are controlled to control the flow state of liquid in the precise lifting machine tool so as to further control the working state of the precise lifting machine tool, so that the precise lifting of the travelling crane in an import situation is realized, and important lifting workpieces are protected. The precise lifting machine tool for the travelling crane is simple in structure and reliable to work and has wide application prospect, the precise lifting of the travelling crane can be finished, and the important lifting workpieces are adequately protected.


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    Title :

    Precise lifting machine tool for travelling crane


    Contributors:
    QIAN XUESONG (author) / ZHAO QIANWEN (author) / CHEN HUI (author)

    Publication date :

    2015-07-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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