The invention discloses a novel torque limiting valve and a hydraulic-control torque limiting system with the novel torque limiting valve. The novel torque limiting valve and hydraulic-control torque limiting system with the novel torque limiting valve comprises a torque limiting unloading valve and a torque limiting control valve. A control oil port of the torque limiting unloading valve is communicated with a control oil port of the torque limiting control valve. A first oil port of the torque limiting unloading valve and a second oil port of the torque limiting unloading valve are communicated with a first derricking cylinder through a one-way balance valve. A third oil port of the torque limiting unloading valve and a fourth oil port of the torque limiting unloading valve are communicated with a second derricking cylinder through a first bidirectional balance valve. A fifth oil port of the torque limiting unloading valve is communicated with a telescopic cylinder through a second bidirectional balance valve. A first oil port of the torque limiting control valve is communicated with a rodless cavity of the first derricking cylinder, and a second oil port of the torque limiting control valve is communicated with a rod cavity of the first derricking cylinder. The novel torque limiting valve and hydraulic-control torque limiting system with the novel torque limiting valve has the advantages that the unloading part of the torque limiting valve can control five actions; five groups of one-way valves and a hydraulic control one-way valve from a main oil way, the flow capacity is strong, the oil ways are independent, and interference does not exist.


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    Title :

    Novel torque limiting valve and hydraulic-control torque limiting system with novel torque limiting valve


    Contributors:
    CHENG LEI (author) / MAN JUN (author) / MAN ZHEN (author) / CHEN ZHIWEI (author) / HAN WENCHAO (author) / LIN XIAOBO (author) / LI WENFENG (author)

    Publication date :

    2015-08-19


    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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