Provided is a bearing replacement aid for limiting the relative movement of a worm shaft in the axial direction during the bearing replacement operation of an elevator hoist. The traction machine comprises a motor part; one end of the worm shaft is connected with a rotating shaft of the motor part; a gear box into which the worm shaft is inserted; a thrust part bearing that is attached to the gearbox and that supports the worm shaft; and a brake wheel fixed to the worm shaft between the gearbox and the motor unit. The bearing replacement aid is provided with a first restricting member that restricts the relative movement of the worm shaft with respect to the gear case by being sandwiched between the brake wheel and the gear case above the worm shaft when the thrust part bearing is pulled out from the gear case. Furthermore, the bearing replacement assist tool is provided with a second restricting member that restricts the relative movement of the worm shaft with respect to the motor part by being sandwiched between the brake wheel and the motor part above the worm shaft during the work of attaching the thrust part bearing to the gearbox.

    提供一种在电梯用曳引机的轴承更换作业中用于限制蜗杆轴沿轴向的相对移动的轴承更换辅助用具。曳引机构成为包括:马达部;蜗杆轴,其一端与马达部的旋转轴连结;齿轮箱,其贯插有蜗杆轴;推力部轴承,其安装于齿轮箱,对蜗杆轴进行支承;以及制动轮,其在齿轮箱与马达部之间固定于蜗杆轴。轴承更换辅助用具具备第一限制部件,在进行将推力部轴承从齿轮箱拔出的作业时,该第一限制部件在蜗杆轴的上方被夹在制动轮与齿轮箱之间而限制蜗杆轴相对于齿轮箱的相对移动。另外,轴承更换辅助用具具备第二限制部件,在进行将推力部轴承安装于齿轮箱的作业时,该第二限制部件在蜗杆轴的上方被夹在制动轮与马达部之间而限制蜗杆轴相对于马达部的相对移动。


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    Titel :

    Bearing replacement aid for elevator hoist and bearing replacement method


    Weitere Titelangaben:

    电梯用曳引机的轴承更换辅助用具以及轴承更换方法


    Beteiligte:

    Erscheinungsdatum :

    30.05.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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