The invention provides an automatic synchronous bottom oil cylinder jacking and lowering device of a crawling crane. The device comprises a control box in which a manual operating module and an automatic operating module are arranged; a solenoid directional valve is mounted on an oil line of an oil cylinder of the bottom of the crawling crane; a vehicle body horizontal sensor is mounted at the telescopic end of the bottom oil cylinder; the manual operating module is directly connected with the solenoid directional valve to control the bottom oil cylinder to be raised and lowered; the automatic operating module is synchronously connected with the solenoid directional valve and the vehicle body horizontal sensor and is automatically controlled by receiving a signal from the vehicle body horizontal sensor. The automatic synchronous bottom oil cylinder jacking and lowering device of the crawling crane is simple in structure; the degree of manual intervention from an operator can be reduced, so that the degree of fatigue of the operator in operation can be decreased, the automation degree of the operation can be increased, and the safety of the bottom of the crawling crane in raising and lowering can be improved.


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    Title :

    Automatic synchronous bottom oil cylinder jacking and lowering device of crawling crane


    Contributors:
    DONG WU (author)

    Publication date :

    2015-04-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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