The invention provides a lifting appliance. The lifting appliance comprises a central shaft; a connecting part is arranged at the upper end of the central shaft; at least three cross beams are uniformly arranged on the periphery of the central shaft; bearing claws which can overturn forwards and backwards are arranged at the front ends of the cross beams; the front ends of the bearing claws are conducted by horizontal positioning when the front ends of the bearing claws are clockwise overturned to the level position. The lifting appliance has the supreme advantages that the moving and lifting of a mounted hub assembly and a wind turbine generator hub can be realized without obstacles by single person, and the lifting appliance is mounted without manual ascending, so that the whole process is safer, more efficient and more labor-saving, and very suitable for utilization in large-scale mounting production of wind turbine generators.


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    Title :

    Lifting appliance


    Contributors:
    LIU ZHIHONG (author) / LIU WEI (author) / LIU XUEQIN (author)

    Publication date :

    2015-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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