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1. 发明授权

US5423612A Hydrodynamic bearing and seal 失效
标题翻译：流体动力轴承和密封
公开(公告)号：US5423612A
公开(公告)日：1995-06-13
申请号：US308078
申请日：1994-09-16
申请人： Yan Zang , Shuhao Chen , Michael R. Hatch
发明人： Yan Zang , Shuhao Chen , Michael R. Hatch
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20 , G11B33/14 , F16C32/06 , F16C33/72
CPC分类号： G11B19/2009 , F16C33/107 , F16C33/745 , G11B33/1473 , F16C2370/12
摘要： A hydrodynamic bearing unit includes a shaft, a sleeve rotatably disposed over the shaft and defining a plurality of spaced-apart hydrodynamic journal bearings, an annular axial thrust plate secured to the shaft to form a shaft subassembly and having a first radial surface in facing confrontation with a shoulder of the sleeve and defining a first hydrodynamic thrust bearing, a thrust bushing secured to the sleeve to form a sleeve subassembly and having a bearing surface in overlying facing engagement with a second radial surface of the annular axial thrust plate to form a second hydrodynamic thrust bearing, a seal for hydrodynamic lubricant defined within an annular Vee groove located adjacent to the shaft and having an apex converging toward the second hydrodynamic thrust bearing, a motor for rotating the sleeve subassembly relative to the shaft subassembly, and hydrodynamic lubricant within the annular Vee groove, the lubricant being retained in place by capillary force in the absence, of rotation, and by centrifugal force in the presence of relative rotation between the subassemblies. A secondary seal is also described.
摘要翻译：流体动力轴承单元包括轴，可旋转地设置在轴上并限定多个间隔开的流体动力轴颈轴承的套筒，固定到轴的环形轴向推力板，以形成轴子组件，并且具有面对面的第一径向表面具有所述套筒的肩部并且限定第一流体动力推力轴承，固定到所述套筒以形成套筒子组件并具有与所述环形轴向推力板的第二径向表面面对接合的支承表面的推力衬套，以形成第二流体动力推力轴承流体动力推力轴承，用于流体动力润滑剂的密封件，其限定在邻近轴并且具有朝向第二流体动力推力轴承收敛的顶点的环形V形槽内;用于使套筒子组件相对于轴子组件旋转的电动机，以及内部流体动力学润滑剂环形V形槽，润滑剂通过毛细管力保持在适当的位置 e，旋转，以及在子组件之间存在相对旋转的情况下通过离心力。还描述了二次密封。

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