The invention discloses a rotary structure of a tower crane. The rotary structure is capable of stably and reliably driving a lazy arm to rotate relative to a tower crane bracket. The rotary structure of the tower crane, disclosed by the invention, comprises a tower crane bracket and a lazy arm, wherein the lazy arm is arranged at the top end of the tower crane bracket and is rotationally arranged at the top end of the tower crane bracket through a first slewing mechanism; a lifting hook capable of moving along the lazy arm is arranged at the front end of the lazy arm; a fixed balancing weight and a mobile balancing weight capable of moving along the lazy arm are arranged at the rear end of the lazy arm; a connecting rod is also arranged between the tower crane bracket and the lazy arm; the top end of the connecting rod is fixed below the lazy arm; the bottom end of the connecting rod is rotationally arranged on a second slewing mechanism; and the second slewing mechanism is fixedly arranged on the tower crane bracket.


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    Title :

    Rotary structure of tower crane


    Contributors:
    WANG LEMIN (author) / WANG HANYU (author)

    Publication date :

    2015-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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