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1. 发明授权

US06217218B1 Hydrodynamic bearing spindle motor 有权
标题翻译：流体动力轴承主轴电机
公开(公告)号：US06217218B1
公开(公告)日：2001-04-17
申请号：US09418005
申请日：1999-10-14
申请人： Hiroshi Inoue , Masashi Omura , Hiromichi Inomata , Kaoru Matsuoka , Shigeo Obata
发明人： Hiroshi Inoue , Masashi Omura , Hiromichi Inomata , Kaoru Matsuoka , Shigeo Obata
IPC分类号： F16C3372
CPC分类号： F16C33/107 , F16C33/103 , F16C33/74 , F16C2202/60 , F16C2370/12 , G11B19/2018 , H02K5/1675
摘要： A hydrodynamic bearing spindle motor comprising: a fixed member which has a radial bearing portion; a rotational member; a rotary shaft which is rotatably supported by the radial bearing portion of the fixed member and is secured to a substantially central location of the rotational member so as to extend in a vertical direction of the hydrodynamic bearing spindle motor such that the rotational member is disposed above the fixed member; lubricant which is provided between the radial bearing portion of the fixed member and the rotary shaft; a projection which is provided on a lower face of the rotational member so as to be disposed radially outwardly of the rotary shaft and has an oblique inner periphery expanding gradually radially outwardly towards a distal end of the projection; a lubricant receiving member which is secured to an upper face of the fixed member so as to be disposed radially outwardly of the projection; and oil repellent for repelling the lubricant, which is applied to the projection and its vicinity; wherein the lubricant receiving member is provided at a location to which the lubricant repelled by the oil repellent and scattered from the projection through rotation of the rotational member adheres.
摘要翻译：一种流体动力轴承主轴电机，包括：具有径向轴承部分的固定部件; 旋转构件; 旋转轴，其由所述固定构件的径向支承部分可旋转地支撑并且固定到所述旋转构件的大致中心位置，以沿所述流体动力轴承主轴电机的垂直方向延伸，使得所述旋转构件设置在所述旋转轴的上方固定件; 设置在固定构件的径向支承部分和旋转轴之间的润滑剂; 所述突起设置在所述旋转构件的下表面上，以便设置在所述旋转轴的径向外侧，并且具有朝着所述突起的远端逐渐径向向外扩张的倾斜内周; 润滑剂接收构件，其固定到所述固定构件的上表面，以便设置在所述突起的径向外侧; 以及用于排斥施加到所述突起及其附近的润滑剂的防油剂; 其中所述润滑剂接收构件设置在所述斥油斥斥的所述润滑剂通过所述旋转构件的旋转从所述突起散射的位置。

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