The invention discloses a method for controlling wear of a pulley groove of a hoisting mechanism of a metallurgical crane, which comprises the following steps of: 1) selecting an improved design control measure as a pulley material, designing the improved pulley material to be Q345B, and carrying out heat treatment on a Q345B pulley, so that the surface hardness of the pulley groove reaches HRC39-43, and the pulley groove can bear larger extrusion stress and contact friction stress of a steel wire rope; (2) the pulley groove bottom thickness is reinforced, the design control measure is improved, the pulley block multiplying power alpha represents the parameter of the multiple relation between labor saving and speed reduction of the pulleys, and the rotating speed V1 of the first set, namely the two adjacent pulleys, wound by directly connecting the steel wire rope and the winding drum is the highest; the rotating speed V3 of the two pulleys at the two ends of the pulley block, namely the pulley fixedly connected with the balance arm, wound out of the last group of pulleys is the lowest, the groove bottom thickness of the low-speed pulley is designed to be 12.5 mm, and the groove bottom thickness of the high-speed pulley is sequentially designed to be increased to 17.5 mm.

    本发明公开了一种控制冶金起重机起升机构滑轮槽磨损的方法,1)、滑轮材料选用改进设计控制措施,改进滑轮材料设计为Q345B,Q345B材质滑轮热处理后滑轮槽表面硬度达到HRC39‑43,能够承受较大的钢丝绳挤压应力及接触摩擦应力;2)、滑轮槽底厚度加强改进设计控制措施,滑轮组倍率α表示滑轮省力及减速的倍数关系的参数,钢丝绳与卷筒直接连接绕入的第一组即中间相邻的两个滑轮转速V1最高,绕出最后一组滑轮与平衡臂固定连接的滑轮即滑轮组两端的两个滑轮转速V3最低,将低速滑轮槽底厚度设计为12.5mm,依次设计增加高速滑轮槽底厚度至17.5mm。


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    Titel :

    Method for controlling abrasion of pulley groove of hoisting mechanism of metallurgical crane


    Weitere Titelangaben:

    控制冶金起重机起升机构滑轮槽磨损的方法


    Beteiligte:
    LI HONGXI (Autor:in) / CAI YUNXIAO (Autor:in) / LIU GUOGANG (Autor:in)

    Erscheinungsdatum :

    23.01.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / B66D Haspeln , CAPSTANS



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