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1. 发明申请

US20130163903A1 HYDRODYNAMIC BEARING ASSEMBLY AND SPINDLE MOTOR INCLUDING THE SAME 审中-公开
标题翻译：水动力轴承组件和主轴包括其中
公开(公告)号：US20130163903A1
公开(公告)日：2013-06-27
申请号：US13444265
申请日：2012-04-11
申请人： Jong Ryeol OH , Dong Hyun Lee , Ho Kyung Jang
发明人： Jong Ryeol OH , Dong Hyun Lee , Ho Kyung Jang
IPC分类号： F16C32/06
CPC分类号： F16C33/106 , F16C33/107 , F16C33/1075 , F16C33/743
摘要： There is provided a hydrodynamic bearing assembly including: a sleeve fixed to a base member and having a depression groove formed in a lower end portion thereof; and a shaft rotatably supported by the sleeve and having a stopper inserted in the depression groove, wherein the stopper includes a movement suppressing part provided on an outer peripheral surface thereof in order to suppress movements of a lubricating fluid.
摘要翻译：提供了一种流体动力轴承组件，其包括：固定到基部构件并且在其下端部形成有凹槽的套筒; 以及由所述套筒可旋转地支撑并具有插入所述凹槽中的止动件的轴，其中所述止动件包括设置在其外周表面上的移动抑制部分，以便抑制润滑流体的运动。

2. 发明申请

US20130044970A1 HYDRODYNAMIC BEARING ASSEMBLY 有权
标题翻译：水动力轴承总成
公开(公告)号：US20130044970A1
公开(公告)日：2013-02-21
申请号：US13572096
申请日：2012-08-10
申请人： Jong Ryeol OH , Ho Kyung JANG
发明人： Jong Ryeol OH , Ho Kyung JANG
IPC分类号： F16C32/06
CPC分类号： F16C17/102 , F16C17/107 , F16C33/107 , F16C41/008 , F16C2240/40 , F16C2370/12 , G11B19/2036 , H02K5/1675
摘要： A hydrodynamic bearing assembly includes a shaft; a sleeve having a shaft hole formed therein so that the shaft is rotatably inserted thereinto; and first and second dynamic pressure generation grooves provided in at least one of an outer surface of the shaft and an inner surface of the sleeve and having a herringbone pattern including V-shaped portions in which upper and lower wings are provided to generate dynamic pressure in lubricating fluid filling a bearing clearance between the shaft and the sleeve at the time of rotation of the shaft. The first dynamic pressure generation groove has a V-shaped portion of which an upper wing is longer than a lower wing, and the second dynamic pressure generation groove is disposed below the first dynamic pressure generation groove in an axial direction and has a V-shaped portion of which a lower wing is longer than an upper wing.
摘要翻译：流体动力轴承组件包括轴; 具有形成在其中的轴孔的套筒，使得轴可旋转地插入其中; 以及第一和第二动压产生槽，其设置在所述轴的外表面和所述套筒的内表面中的至少一个中，并且具有包括V形部分的人字形图案，其中设有上翼和下翼以产生动压润滑流体在轴的旋转时填充轴和套筒之间的轴承间隙。第一动压产生槽具有上翼比下翼长的V形部分，第二动压产生槽沿轴向设置在第一动压产生槽的下方，并具有V形下翼部的一部分比上翼长。

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