The invention discloses a windproof tower crane for a building, and relates to the building engineering machinery. A lifting arm and a balance arm are rotationally arranged on a rotating table, and are provided with a stay rope tower A and a stay rope tower B; a rope stretching device A and a rope stretching device B are arranged at the tops of the towers; the stay rope tower A and the rope stretching device A are connected by a rope A; the stay rope tower B and the rope stretching device B are connected by a rope B; an electric pull hook is rotationally arranged at the top end of the balance arm, and can be hung in the connecting place of two standard joints; a counterweight lifting device is arranged at the inner top of a jacking sleeve frame, and can vertically move in the standard joints; and the balance arm is provided with a counterweight slide way fitting the counterweight lifting device. Compared with the prior art, the windproof tower crane for building can quickly install and disassemble the counterweight block in the coming of typhoon or in other gale states, and can bend the lifting arm and the balance arm to reduce the wind suffering area so as to keep the gravity centers of the towers stable after the disassembly of the counterweight block.


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    Title :

    Windproof tower crane for building


    Contributors:
    JIN ZHIFENG (author) / SUN FEIJIANG (author) / XIE YONGCHENG (author)

    Publication date :

    2016-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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