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Invention Grant
CN103828200B 电动机 有权 转让

电动机
Abstract:
一种联接部（16）以一体旋转的方式设置于旋转轴（8）或蜗杆轴（15）上，所述联接部用于将所述旋转轴（8）连接至所述蜗杆轴（15）并且其中具有联接孔（28）。设置于所述旋转轴（8）和所述蜗杆轴（15）中的另一个之上的所述联接突出部8a、15a）插入所述联接孔（28）中。周向间隙（C1）和径向间隙（C2）形成于所述联接孔（28）的所述内表面和所述联接突出部（8a、15a）之间。周向缓冲部（31）进入所述周向间隙（C1）中，并且径向缓冲部（32）进入所述径向间隙（C2）中。所述联接孔28）的所述内表面和所述联接突出部（8a、15a）设置成使得所述周向缓冲部（31）被压缩以在所述圆周方向上变形，据此允许在所述旋转轴（8）随着电动机本体（2）驱动而旋转时将所述缓冲部带至彼此接触。
Abstract(English):

A coupling portion is provided on either a rotary shaft or a worm shaft in an integrally rotational manner, said coupling portion for connecting the rotary shaft to the worm shaft and having a coupling hole therein. The coupling projection provided on the other of the rotary shaft and the worm shaft is inserted in the coupling hole. A circumferential clearance and a radial clearance are formed between the inner surface of the coupling hole and the coupling projection. Circumferential buffer portions are interposed in the circumferential clearance, and radial buffer portions are interposed in the radial clearance. The inner surface of the coupling hole and the coupling projection are arranged such that the circumferential buffer portions are compressed to deform in the circumferential direction whereby to allow the buffer portions to be brought into contact with each other when the rotary shaft is rotating.

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