专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06799892B2 Hybrid spindle bearing 有权
标题翻译：混合主轴轴承
公开(公告)号：US06799892B2
公开(公告)日：2004-10-05
申请号：US10186479
申请日：2002-06-28
申请人： Hans Leuthold , Michael D. Kennedy , Alan Lyndon Grantz , Susan Immisch , Norbert Steve Parsoneault , Mohamed Mizanur Rahman
发明人： Hans Leuthold , Michael D. Kennedy , Alan Lyndon Grantz , Susan Immisch , Norbert Steve Parsoneault , Mohamed Mizanur Rahman
IPC分类号： F16C1710
CPC分类号： F16C17/10 , F16C33/1005 , F16C33/1025 , F16C2370/12 , G11B19/2018
摘要： A bearing system in which an axially stiff narrow gap fluid dynamic gas bearing is preloaded by an axially less stiff larger gap fluid dynamic bearing. As an example two fluid dynamic bearings are provided spaced apart along a shaft, one of the bearings comprising a fluid dynamic bearing, the other comprising an air bearing. The fluid dynamic bearing has a larger gap, while the air bearing has a relatively small gap. The overall working surface area of the air bearing may be twice as much or more than the working surface area of the fluid bearing.
摘要翻译：轴承系统，其中轴向刚性窄间隙流体动态气体轴承由轴向较小刚度较大的间隙流体动力轴承预加载。作为示例，两个流体动力轴承沿着轴间隔开设置，其中一个轴承包括流体动力轴承，另一个包括空气轴承。流体动力轴承具有较大的间隙，而空气轴承的间隙相对较小。空气轴承的总体工作表面积可以是流体轴承的工作表面面积的两倍或更多。

2. 发明授权

US06583952B1 In-hub spindle motor with separate fluid dynamic bearings 有权
标题翻译：内置主轴电机，带独立的流体动力轴承
公开(公告)号：US06583952B1
公开(公告)日：2003-06-24
申请号：US09621938
申请日：2000-07-24
申请人： Alan Lyndon Grantz , Norbert Steven Parsoneault , Samnathan Murthy , Hans Leuthold , Mohamed Mizanur Rahman
发明人： Alan Lyndon Grantz , Norbert Steven Parsoneault , Samnathan Murthy , Hans Leuthold , Mohamed Mizanur Rahman
IPC分类号： G11B1702
CPC分类号： F16C17/105 , F16C33/103 , F16C33/107 , F16C33/74 , F16C2370/12 , G11B19/2009 , H02K5/124
摘要： A hydrodynamic bearing system where the bearing includes a shaft and two independent bearings, including a top cone or bi-sphere and a bottom cone or bi-sphere separated by a segment of the shaft. The bearing includes a hub supported bearing element rotating around the shaft and the shaft supported top cone and bottom cone; complementary surfaces of the bearing element and the cone define a narrow gap between the bearing support element for the bearing fluid. Sealing plates or seal elements define a fluid gap with a radially extending face of the cone; a gap also exists between an interior surface portion of each cone and the shaft. These gaps are connected so that separate flow paths are established, one around the top cone or bi-sphere and one around the bottom cone or bi-sphere. By providing two independent bearings, the stator can be mounted to the shaft, facing magnets supported on the hub to form an in-hub motor. When the load or RPM changes, the fluid pressure or movement in each bearing may change but the function of the bearing and its ability to provide stiffness and stability to the system will not be lessened.
摘要翻译：一种流体动力轴承系统，其中轴承包括轴和两个独立的轴承，包括顶部锥体或双球体以及由轴的一部分分隔的底部锥体或双球体。轴承包括围绕轴旋转的轮毂支撑的轴承元件和轴支撑的顶锥和底锥; 轴承元件和锥体的互补表面限定用于轴承流体的轴承支撑元件之间的窄间隙。密封板或密封元件与锥体的径向延伸的表面限定流体间隙; 在每个锥体的内表面部分和轴之间也存在间隙。这些间隙被连接，使得形成单独的流动路径，一个围绕顶部圆锥体或双球体，一个围绕底部锥体或双球体。通过提供两个独立的轴承，定子可以安装到轴上，面向支撑在轮毂上的磁体，以形成内轮毂电机。当负载或RPM变化时，每个轴承中的流体压力或运动可能发生变化，但是轴承的功能及其对系统提供刚度和稳定性的能力将不会降低。

3. 发明授权

US6118620A In-hub spindle motor with separate fluid dynamic bearings 失效
标题翻译：内置主轴电机，带独立的流体动力轴承
公开(公告)号：US6118620A
公开(公告)日：2000-09-12
申请号：US60225
申请日：1998-04-14
申请人： Alan Lyndon Grantz , Norbert Steven Parsoneault , Samnathan Murthy , Hans Leuthold , Mohamed Mizanur Rahman
发明人： Alan Lyndon Grantz , Norbert Steven Parsoneault , Samnathan Murthy , Hans Leuthold , Mohamed Mizanur Rahman
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20 , H02K5/124 , G11B17/02 , F16C32/06
CPC分类号： F16C17/105 , F16C33/103 , F16C33/107 , F16C33/74 , G11B19/2009 , H02K5/124 , F16C2370/12
摘要： A hydrodynamic bearing system where the bearing includes a shaft and two independent bearings, comprising a top cone or bi-sphere and a bottom cone or bi-sphere separated by a segment of the shaft. The bearing includes a hub supported bearing element rotating around the shaft and the shaft supported top cone and bottom cone; complementary surfaces of said bearing element and said cone define a narrow gap between the bearing support element for the bearing fluid. Sealing plates or seal elements define a fluid gap with a radially extending face of the cone; a gap also exists between an interior surface portion of each cone and the shaft. These gaps are connected so that separate flow paths are established, one around the top cone or bi-sphere and one around the bottom cone or bi-sphere. By providing two independent bearings, the stator can be mounted to the shaft, facing magnets supported on the hub to form an in-hub motor. When the load or RPM changes, the fluid pressure or movement in each bearing may change but the function of the bearing and its ability to provide stiffness and stability to the system will not be lessened.
摘要翻译：一种流体动力轴承系统，其中轴承包括轴和两个独立的轴承，包括顶部锥体或双球体以及由轴的一部分分开的底部锥体或双球体。轴承包括围绕轴旋转的轮毂支撑的轴承元件和轴支撑的顶锥和底锥; 所述轴承元件和所述锥体的互补表面限定用于轴承流体的轴承支撑元件之间的窄间隙。密封板或密封元件与锥体的径向延伸的表面限定流体间隙; 在每个锥体的内表面部分和轴之间也存在间隙。这些间隙被连接，使得形成单独的流动路径，一个围绕顶部圆锥体或双球体，一个围绕底部锥体或双球体。通过提供两个独立的轴承，定子可以安装到轴上，面向支撑在轮毂上的磁体，以形成内轮毂电机。当负载或RPM变化时，每个轴承中的流体压力或运动可能发生变化，但是轴承的功能及其对系统提供刚度和稳定性的能力将不会降低。

4. 发明授权

US06702465B2 Exclusion seal for fluid dynamic bearing motors 有权
标题翻译：流体动力轴承电机排除密封
公开(公告)号：US06702465B2
公开(公告)日：2004-03-09
申请号：US10017196
申请日：2001-12-13
申请人： Alan Lyndon Grantz , Robert Alan Nottingham , Jeffry Arnold LeBlanc , Troy Michael Herndon , Norbert Steve Parsoneault , Saul Ceballos , Hans Leuthold , Alexander Gredinberg
发明人： Alan Lyndon Grantz , Robert Alan Nottingham , Jeffry Arnold LeBlanc , Troy Michael Herndon , Norbert Steve Parsoneault , Saul Ceballos , Hans Leuthold , Alexander Gredinberg
IPC分类号： F16C3206
CPC分类号： F16C17/10 , F16C33/74 , F16C2370/12 , G11B19/2009
摘要： A method and apparatus for a conical bearing is provided having a seal shield having an angle supported from the hub or sleeve which surrounds the shaft, and extending at an angle toward the outer surface of the shaft and spaced slightly away from the upper angular surface of the cone. As the cone and seal shield rotate relative to one another, fluid is drawn toward the lower inner region of the reservoir. However, due to shock or the like, some fluid may reach the radial gap between the end of the shield and the outer surface of the shaft, therefore, a ring is either incorporated into the upper end of the cone or pressed against the axial outer end of the cone, defining an axial gap which is smaller than the radial gap. In a preferred form of the invention, the ratio is about 1:3. When oil is introduced to either of the two gaps (typically by shock), it transfers or typically comes to rest in the axial gap, since the capillary attractive force increases as the gap size decreases; therefore, with the axial gap being smaller than the radial gap the oil will tend to transfer to the axial gap. As the seal is spun up as the shield and cone rotate relative to one another, centrifugal force acting on the oil in the axial gap transfers the oil radially away from the radial gap and into the reservoir defined between the shield and the cone. This transfer typically happens in two stages. First the oil in the radial gap is transferred into the axial gap, typically in the first few seconds of operation. The oil remaining in the axial gap then transfers into the reservoir volume due to centrifugal pumping.
摘要翻译：提供了一种用于锥形轴承的方法和装置，其具有密封屏蔽件，所述密封屏蔽件具有从所述毂或套筒支撑的角度，所述角度围绕所述轴部并且以一定角度朝向所述轴的外表面延伸并且间隔开远离所述轴的所述上角度表面锥体当锥体和密封罩相对于彼此旋转时，流体被拉向储存器的下部内部区域。然而，由于冲击等，一些流体可能到达屏蔽端部和轴的外表面之间的径向间隙，因此，环被结合到锥体的上端或压靠在轴向外部锥体的端部，限定小于径向间隙的轴向间隙。在本发明的优选形式中，该比例为约1:3。当将油引入两个间隙中的任一个（通常是通过冲击）时，其转移或通常在轴向间隙中停留，因为毛细吸引力增加随着间隙尺寸的减小; 因此，随着轴向间隙小于径向间隙，油将倾向于转移到轴向间隙。随着密封件的旋转，屏蔽和锥体相对于彼此旋转，作用在轴向间隙中的油的离心力使油径向离开径向间隙并进入限定在护罩和锥体之间的储液器中。这种转移通常发生在两个阶段。首先，径向间隙中的油通常在操作的最初几秒内被转移到轴向间隙中。由于离心泵送，剩余在轴向间隙中的油然后转移到储存器容积中。

5. 发明授权

US6065877A Thermal compensation for fluid dynamic bearing using bimetal parts 有权
标题翻译：使用双金属零件的流体动力轴承的热补偿
公开(公告)号：US6065877A
公开(公告)日：2000-05-23
申请号：US178528
申请日：1998-10-23
申请人： Hans Leuthold , Alan Lyndon Grantz , Matt L. Shumway , Norbert S. Parsoneault , Etoli Wolff , Michael D. Kennedy , Samnathan Murthy , Raquib U. Khan , Mohamed M. Rahman , Wesley R. Clark
发明人： Hans Leuthold , Alan Lyndon Grantz , Matt L. Shumway , Norbert S. Parsoneault , Etoli Wolff , Michael D. Kennedy , Samnathan Murthy , Raquib U. Khan , Mohamed M. Rahman , Wesley R. Clark
IPC分类号： F16C17/22 , F16C33/10 , G11B19/20 , G11B25/04 , G11B33/14 , F16C32/06
CPC分类号： F16C33/107 , F16C17/105 , F16C17/22 , G11B19/2009 , G11B25/043 , G11B33/1433 , F16C2370/12 , Y10S384/905
摘要： A bimetallic part is formed from metals or comprises metals with different thermal expansion coefficients. A first element defines the part and defines one surface of the bearing gap and has a first coefficient of expansion and a second element is wholly or partially inserted into and constrained within the first element and having a different coefficient of thermal expansion so that as the temperature changes, the stress created by the differential expansion of the two elements will cause the overall part to deform elastically as a function of temperature. This deformation will cause the gap, the elements being properly selected, to narrow as temperature rises (and viscosity falls) and to widen as temperature falls (and viscosity rises).
摘要翻译：双金属部分由金属形成或包含具有不同热膨胀系数的金属。第一元件限定该部分并且限定轴承间隙的一个表面并且具有第一膨胀系数，并且第二元件被全部或部分地插入并限制在第一元件内并且具有不同的热膨胀系数，使得随着温度变化时，由两个元件的不同膨胀产生的应力将导致整个部件作为温度的函数弹性变形。随着温度升高（粘度下降），随着温度下降（粘度上升），这种变形将导致适当选择的元件的间隙变窄。

6. 发明授权

US06154339A Centrifugal capillary seal for use with fluid dynamic bearings 失效
标题翻译：用于流体动力轴承的离心毛细管密封
公开(公告)号：US06154339A
公开(公告)日：2000-11-28
申请号：US60328
申请日：1998-04-14
申请人： Alan Lyndon Grantz , Mohamed Mizanur Rahman
发明人： Alan Lyndon Grantz , Mohamed Mizanur Rahman
IPC分类号： F16C33/10 , F16C33/74 , G11B19/20 , G11B17/02
CPC分类号： F16C33/745 , F16C17/026 , G11B19/2009 , F16C2370/12
摘要： An improved capillary seal for use with a hydrodynamic bearing is disclosed, which provides a stronger or stiffer seal for a fluid dynamic bearing motor which is open at both ends, and is used with top cover attached motors utilizing fluid dynamic bearings. The design of the capillary seal uses centrifuigal force to actively push the oil back into the FDB while it is spinning, combined with the capillary tension which holds oil in the FDB during stationary periods. Also, the seal design comprises two walls which converge toward an apex near an adjacent fluid dynamic bearing. This design allows air, trapped within the seal and the associated FDB, to be expelled, eliminating air bubbles from the fluid dynamic bearing.
摘要翻译：公开了一种用于流体动力轴承的改进的毛细管密封件，其为在两端敞开的流体动力轴承马达提供更强或更硬的密封，并且与使用流体动力轴承的顶盖连接的马达一起使用。毛细管密封的设计使用离心力在静止期间将油回吸到FDB中，同时在FDB中保持油的毛细管张力。此外，密封设计包括两个壁，其朝向相邻流体动力轴承附近的顶点会聚。这种设计允许空气被封闭在密封件和相关联的FDB内，以排出流体动力轴承的气泡。

7. 发明授权

US6144523A Simplified conical bearing with independent flow paths 失效
标题翻译：具有独立流路的简化锥形轴承
公开(公告)号：US6144523A
公开(公告)日：2000-11-07
申请号：US994099
申请日：1997-12-19
申请人： Samnathan Murthy , Alan Lyndon Grantz , Steve Parsoneault , Roger Allen Addy , Peter R. Riegler , Mohamed Mizanur Rahman
发明人： Samnathan Murthy , Alan Lyndon Grantz , Steve Parsoneault , Roger Allen Addy , Peter R. Riegler , Mohamed Mizanur Rahman
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20 , H02K5/124 , G11B17/02 , F16C32/06
CPC分类号： F16C41/008 , F16C17/105 , F16C33/1085 , F16C33/745 , G11B19/2009 , H02K5/124 , F16C2370/12
摘要： A hydrodynamic bearing useful as a bearing cartridge or as the cartridge may be incorporated into a spindle motor or the like, where the bearing includes a stationary shaft and two independent bearings, comprising a top cone and a bottom cone separated by a segment of the shaft. The bearing includes a sleeve rotating around and surrounding the shaft, and the top cone and bottom cone and defining a narrow gap between the sleeve and the shaft and cones. Sealing plates are supported on the sleeve to seal off the ends of the bearing and are located along the shaft beyond the cones. A gap also exists between an interior surface portion of each cone and the shaft. Thus, separate flow paths are established, one around the top cone and one around the bottom cone. By providing two independent paths, the flow rates do not have to be the same in each conical flow path for the bearing seals to function properly.
摘要翻译：可用作轴承筒或筒的流体动力轴承可以结合到主轴电机等中，其中轴承包括固定轴和两个独立的轴承，包括顶部锥体和由轴的一部分分开的底部锥体。轴承包括围绕轴围绕并且围绕轴的套筒，以及顶部锥形和底部锥形件，并且在套筒和轴和锥体之间限定狭窄的间隙。密封板支撑在套筒上以密封轴承的端部并且沿着轴位于锥体以外。在每个锥体的内表面部分和轴之间也存在间隙。因此，建立单独的流动路径，一个围绕顶部锥体，一个围绕底部锥体。通过提供两个独立的路径，每个锥形流动路径中的流速不必相同，用于轴承密封件正常工作。

8. 发明授权

US6148501A Fabrication means for in-hub spindle with separate fluid dynamic bearings 失效
标题翻译：具有独立流体动力轴承的内轮毂主轴的制造方法
公开(公告)号：US6148501A
公开(公告)日：2000-11-21
申请号：US060030
申请日：1998-04-14
申请人： Alan Lyndon Grantz , Marten Byl , Matt L. Shumway , Norbert Parsoneault , Etoli Wolff , Hans Leuthold , Roger Allen Addy
发明人： Alan Lyndon Grantz , Marten Byl , Matt L. Shumway , Norbert Parsoneault , Etoli Wolff , Hans Leuthold , Roger Allen Addy
IPC分类号： F16C17/10 , F16C33/10 , G11B19/20 , H02K15/14 , H02K15/16 , G11B5/127
CPC分类号： F16C43/02 , F16C17/105 , F16C33/107 , G11B19/2018 , H02K15/14 , H02K15/16 , F16C2370/12 , Y10T29/49009 , Y10T29/49025 , Y10T29/49696 , Y10T29/497 , Y10T29/49764
摘要： A method of fabricating a spindle hub assembly (90) including precision machining critical surfaces of the hub components (60, 33) that mount onto a spindle shaft (30) and accurately locate the critical surfaces for positioning of bearing cones (35, 36) on the shaft in spaced relationship of bearing seats (34) on the hub (60, 33) to ensure stable rotation of the hub on the shaft.
摘要翻译：一种制造主轴毂组件（90）的方法，其包括安装在主轴（30）上的轮毂部件（60,33）的精密加工临界表面并且精确定位用于定位轴承锥（35,36）的临界表面，在所述轴上在所述轮毂（60,33）上的轴承座（34）间隔开的关系中，以确保所述轮毂在所述轴上的稳定旋转。

9. 发明授权

US06181039B2 Centrifugal capillary seal for use with fluid dynamic bearings 有权
标题翻译：用于流体动力轴承的离心毛细管密封
公开(公告)号：US06181039B2
公开(公告)日：2001-01-30
申请号：US09330705
申请日：1999-06-11
申请人： Michael D. Kennedy , Alan Lyndon Grantz
发明人： Michael D. Kennedy , Alan Lyndon Grantz
IPC分类号： H02K708
CPC分类号： F16C33/106 , F16C33/74 , F16C2370/12 , G11B19/2009 , H02K7/086
摘要： A fluid dynamic bearing usable in a spindle motor where the bearing is defined between two relative rotating surfaces which are open to the air at both ends, allowing the use of a fixed shaft. At one end of the shaft, at least one high volume, low stiffness seal is used, in combination with a low volume, high stiffness seal. The pressure differential between these two seals is balanced by one or more high stiffness, low volume seals spaced axially away along the shaft.
摘要翻译：可用于主轴电动机的流体动力轴承，其中轴承限定在两端相对于空气开放的两个相对旋转表面之间，允许使用固定轴。在轴的一端，使用至少一个高体积，低刚度的密封，结合低体积，高刚度密封。这两个密封件之间的压差通过一个或多个沿着轴轴向间隔开的高刚度，低体积密封来平衡。

10. 发明授权

US06955471B2 Cartridge style fluid dynamic bearing with conical or spherical bearing elements 失效
标题翻译：带锥形或球面轴承元件的筒式流体动力轴承
公开(公告)号：US06955471B2
公开(公告)日：2005-10-18
申请号：US10681804
申请日：2003-10-07
申请人： Gunter Heine , Alan Lyndon Grantz
发明人： Gunter Heine , Alan Lyndon Grantz
IPC分类号： F16C17/10 , F16C33/10 , F16C32/06
CPC分类号： F16C33/107 , F16C17/026 , F16C17/105
摘要： A fluid dynamic bearing cartridge includes a shaft or sleeve adapted to be fixed in place has at least one fluid dynamic bearing supporting the shaft and one or more seals at either end of the shaft. The seal arrangements may include a pair of centrifugal capillary seals at either end of the shaft. Alternatively, a grooved pumping seal or centrifugal capillary seal at one end may be used in combination with a static capillary seal, especially where a journal bearing defined along the shaft near the capillary seal has an imbalanced groove section.
摘要翻译：流体动力轴承盒包括适于固定在适当位置的轴或套筒，其具有支撑轴的至少一个流体动力轴承和轴的任一端的一个或多个密封件。密封装置可以包括在轴的任一端的一对离心毛细管密封件。或者，一端的槽式泵送密封或离心毛细管密封可以与静态毛细管密封件组合使用，特别是在靠近毛细管密封件的轴上限定的轴颈轴承具有不平衡的槽部分的情况下。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式