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Invention Grant
US08193668B2 Motor with speed reduction mechanism capable of absorbing axial deviation between armature shaft and worm shaft 有权
带减速机构的电机能够吸收电枢轴和蜗杆轴之间的轴向偏差

Motor with speed reduction mechanism capable of absorbing axial deviation between armature shaft and worm shaft
Abstract:
Detecting a rotation state of a worm wheel side with good accuracy while allowing play between an armature-shaft-side coupling member and a worm-shaft-side coupling member. The armature-shaft-side coupling member is provided together rotatably to the other end of an armature shaft; the worm-shaft-side coupling member is provided together rotatably to one end of a worm shaft; the armature-shaft-side coupling member and the worm-shaft-side coupling member are coupled together rotatably; and a sensor magnet is provided together rotatably to the worm-shaft-side coupling member. Therefore, the rotation state of the worm shaft can be detected with good accuracy. Even if the play is provided between the armature-shaft-side coupling member and the worm-shaft-side coupling member, this play does not affect the accuracy of detection of the rotation state of the worm shaft, thereby bringing no problem regarding accuracy of detection of a rotation state of a worm wheel side.
Abstract(Chinese):

以良好的精度检测蜗轮侧的旋转状态，同时允许电枢 - 轴侧联接构件和蜗杆 - 轴侧联接构件之间的间隙。 电枢轴侧联接构件一起可旋转地设置在电枢轴的另一端; 蜗杆轴联接构件可旋转地设置在蜗杆轴的一端; 电枢轴侧联接构件和蜗杆 - 轴侧联接构件可旋转地联接在一起; 并且传感器磁体可旋转地设置在蜗杆轴侧联接构件上。 因此，可以高精度地检测蜗杆轴的旋转状态。 即使在电枢轴侧联接构件和蜗杆 - 轴侧联接构件之间设置游隙，该游隙也不影响蜗杆轴的旋转状态的检测精度，因此不会产生关于 检测蜗轮侧的旋转状态。

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