The present invention is provided with: a vent hole which is provided in a housing and discharges air from the side of the housing provided with a stator to the opposite side; and ribs which are convex ribs provided on the inner surface of the rotating body so as to protrude toward the housing side, and which are provided so as to extend radially with respect to the central axis of the main shaft. Furthermore, the rotating body is provided with an air suction hole which sucks air from the outer surface side to the inner surface side of the rotating body, and the air suction hole is arranged at a position where the distance from the central axis of the main shaft is smaller than the distance from the central axis of the main shaft to the exhaust hole.

    本发明具备:排气孔,其设置于壳体,并从壳体的设置定子一侧向相反侧排出空气;以及肋,其是在旋转体的内表面向壳体侧突出地设置的凸状的肋,且相对于主轴的中心轴呈放射状延伸地设置。另外,在旋转体,设置有吸气孔,吸气孔从旋转体的外表面侧向内表面侧吸入空气,且设置于距主轴的中心轴的距离比从主轴的中心轴到排气孔的距离小的位置。


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    Title :

    Winch and elevator


    Additional title:

    卷扬机以及电梯


    Contributors:

    Publication date :

    2023-10-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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