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1. 发明授权

US06657339B2 Method for setting gaps in hydrodynamic bearings 失效
公开(公告)号：US06657339B2
公开(公告)日：2003-12-02
申请号：US09882768
申请日：2001-06-15
申请人： Troy M. Herndon , Klaus D. Kloeppel
发明人： Troy M. Herndon , Klaus D. Kloeppel
IPC分类号： H02K708
CPC分类号： F16C17/10 , F16C33/10 , F16C2370/12 , G11B19/2009 , H02K15/14 , H02K15/16
摘要： A method for setting a gap in a hydrodynamic bearing of a disc drive spindle motors and a motor having such a bearing gap. The method comprises mounting a rotor hub having a central journal sleeve onto a shaft that has been secured to a support after having had a lower thrust bearing pressed onto the shaft in communication with said support, adding an amount of hydrodynamic fluid into the rotor hub's journal sleeve, pressing an upper thrust bearing onto the rotor shaft until contact is made with the rotor hub, and rotating the hub until axial forces balance and set the bearing gap.

2. 发明授权

US06705013B2 Part creep for setting bearing gap 失效
标题翻译：用于设置轴承间隙的零件蠕变
公开(公告)号：US06705013B2
公开(公告)日：2004-03-16
申请号：US09895051
申请日：2001-06-29
申请人： Troy M. Herndon , Klaus D. Kloeppel
发明人： Troy M. Herndon , Klaus D. Kloeppel
IPC分类号： B21D5310
CPC分类号： F16C3/10 , F16C17/107 , F16C2370/12 , G11B19/2009 , H02K5/1677 , Y10T29/49636 , Y10T29/49639 , Y10T29/49696 , Y10T29/497
摘要： A method for setting one or more hydrodynamic bearing gaps in a disc drive spindle motor is provided. In one embodiment, a method setting one or more hydrodynamic bearing gaps in a disc drive spindle motor includes disposing a rotary member against one or more working surfaces such that substantially no gap exists therebetween and inducing creep between the rotary member and the working surfaces. The creep creates a bearing gap therebetween the rotary member and at least one of the working surfaces. The creep may be induced by thermally cycling the motor components or applying a force to a tool coupled to a member having at least one of the working surfaces disposed thereon.
摘要翻译：提供了一种在盘驱动主轴电机中设置一个或多个流体动力轴承间隙的方法。在一个实施例中，设置盘驱动主轴马达中的一个或多个流体动力轴承间隙的方法包括将旋转构件设置在一个或多个工作表面上，使得它们之间基本上没有间隙，并引起旋转构件和工作表面之间的蠕变。蠕变在旋转构件和至少一个工作表面之间产生轴承间隙。蠕变可以通过热循环马达部件或者向连接到其上布置有至少一个工作表面的部件的构件施加力而引起。

3. 发明授权

US06594883B2 Apparatus and method for setting bearing gaps in an electric motor 有权
标题翻译：用于设置电动机中的轴承间隙的装置和方法
公开(公告)号：US06594883B2
公开(公告)日：2003-07-22
申请号：US09881947
申请日：2001-06-15
申请人： Klaus D. Kloeppel , Troy M. Herndon
发明人： Klaus D. Kloeppel , Troy M. Herndon
IPC分类号： H02K1500
CPC分类号： F16C43/02 , B21K25/00 , B23K26/28 , B23P11/00 , F16C17/08 , F16C33/103 , F16C2370/12 , G11B19/2009 , H02K5/1677 , Y10T29/49009 , Y10T29/49025 , Y10T29/49464 , Y10T29/49465 , Y10T29/49636 , Y10T29/49696 , Y10T29/49945 , Y10T29/53143
摘要： An apparatus and method for setting a gap in a hydrodynamic bearing of a disc drive spindle motor. The invention comprises placing an end of the shaft into shaft support apertures in the hub, fitting a thrust bearing counterplate into a recess defined by an annular retaining flange that is proximate the end of the shaft, and deforming the counterplate to form a gap between the end of the shaft and a surface of the counterplate.
摘要翻译：一种用于设置盘驱动主轴电机的流体动压轴承中的间隙的装置和方法。本发明包括将轴的端部放置在轮毂中的轴支撑孔中，将止推轴承对准板装配到由邻近轴的端部的环形保持凸缘限定的凹部中，并使对准板变形以形成间隙轴的端部和对板的表面。

4. 发明授权

US06762529B2 Lamination features for stator grounding 有权
标题翻译：定子接地层叠功能
公开(公告)号：US06762529B2
公开(公告)日：2004-07-13
申请号：US09865240
申请日：2001-05-24
申请人： Troy M. Herndon , Jeffry A. LeBlanc
发明人： Troy M. Herndon , Jeffry A. LeBlanc
IPC分类号： H02K300
CPC分类号： H02K1/187 , H02K11/40
摘要： A spindle motor incorporates a shaft having a known outer diameter and a stator having a known inner diameter which is slightly larger than the outer diameter of the shaft so that it may slip over the shaft. Die cut sharp features are defined in the inner diameter of the stator laminations. These features extending radially inward from the generally circular inner diameter of the stator laminations so that these features establish an interference fit with the outer surface of the shaft which the structure is mounted. When the stack is pressed onto the outer surface of the shaft to which it is mounted and supported, the coating on the stack will scrape off, thus establishing a metal-to-metal contact between the stack and the adjoining outer surface of the shaft. As a result of this, a tight interference fit will be established between the inner surface of the stack and the outer surface of the shaft, thus both radially fixing the stack on the shaft, and grounding the stack to the shaft.
摘要翻译：主轴电动机包括具有已知外径的轴和具有已知内径的定子，该内径略大于轴的外径，使得其可能在轴上滑动。切割的尖锐特征限定在定子叠片的内径中。这些特征从定子叠片的大致圆形内径径向向内延伸，使得这些特征与安装结构的轴的外表面建立过盈配合。当堆叠被按压到其被安装和支撑的轴的外表面上时，堆叠上的涂层将被刮掉，从而在堆和邻近的轴的外表面之间建立金属对金属的接触。因此，在堆的内表面和轴的外表面之间将建立紧密的过盈配合，从而将堆叠径向地固定在轴上，并将堆叠接地到轴上。

5. 发明授权

US09115758B2 Shield restricting axial movement 有权
标题翻译：屏蔽限制轴向运动
公开(公告)号：US09115758B2
公开(公告)日：2015-08-25
申请号：US13478078
申请日：2012-05-22
申请人： Troy M. Herndon , James S. Lee , Jeffry A. Leblanc , Robert A. Nottingham , Norbert S. Parsoneault , Thaveesinn Vasavakul , James S. Bowdoin , Christopher M. Woldemar , Jerry J. Weingord
发明人： Troy M. Herndon , James S. Lee , Jeffry A. Leblanc , Robert A. Nottingham , Norbert S. Parsoneault , Thaveesinn Vasavakul , James S. Bowdoin , Christopher M. Woldemar , Jerry J. Weingord
IPC分类号： H02K5/15 , F16C33/10 , H02K5/167 , F16C41/00
CPC分类号： F16C33/103 , F16C17/107 , F16C33/745 , F16C41/008 , F16C2370/12 , H02K5/1677 , Y10T29/49009 , Y10T29/49639 , Y10T29/49702 , Y10T29/49703 , Y10T29/53443
摘要： In one example, an FDB motor having a shield member is provided. In one example, the method includes disposing a first member and a second member for relative rotation about an axis of rotation. An annular shield member is attached to the first member, the shield member disposed adjacent a fluid reservoir for containing a bearing fluid. The reservoir is filled through an aperture (e.g., a fill hole) in the shield member. Thereafter, the aperture is at least partially sealed. The aperture may be hermetically sealed via one or more laser pulses. In other examples, a two piece shield is provided for shielding a reservoir without a fill hole.
摘要翻译：在一个示例中，提供具有屏蔽构件的FDB电动机。在一个示例中，该方法包括布置围绕旋转轴线相对旋转的第一构件和第二构件。环形屏蔽构件附接到第一构件，屏蔽构件邻近流体储存器设置以容纳轴承流体。储存器通过屏蔽构件中的孔（例如，填充孔）填充。此后，孔径至少部分地被密封。孔可以通过一个或多个激光脉冲气密密封。在其他示例中，提供了一个用于屏蔽储存器而没有填充孔的双件式屏蔽件。

6. 发明授权

US08181348B2 Shielding fluid reservoirs of fluid dynamic bearing motors 有权
标题翻译：流体动力轴承电机的屏蔽液储层
公开(公告)号：US08181348B2
公开(公告)日：2012-05-22
申请号：US11097050
申请日：2005-04-01
申请人： Troy M. Herndon , James S. Lee , Jeffry A. Leblanc , Robert A. Nottingham , Norbert S. Parsoneault , Thaveesinn Vasavakul , James S. Bowdoin , Christopher M. Woldemar , Jerry J. Weingord
发明人： Troy M. Herndon , James S. Lee , Jeffry A. Leblanc , Robert A. Nottingham , Norbert S. Parsoneault , Thaveesinn Vasavakul , James S. Bowdoin , Christopher M. Woldemar , Jerry J. Weingord
IPC分类号： B21D53/10 , F16C32/06 , F16C33/74
CPC分类号： F16C33/103 , F16C17/107 , F16C33/745 , F16C41/008 , F16C2370/12 , H02K5/1677 , Y10T29/49009 , Y10T29/49639 , Y10T29/49702 , Y10T29/49703 , Y10T29/53443
摘要： In one example, a fluid dynamic bearing motor having a shield member is provided. In one example, the method includes disposing a first member and a second member for relative rotation about an axis of rotation. An annular shield member is attached to the first member, the shield member disposed adjacent a fluid reservoir for containing a bearing fluid. The reservoir is filled through an aperture (e.g., a fill hole) in the shield member. Thereafter, the aperture is at least partially sealed. The aperture may be hermetically sealed via one or more laser pulses. In other examples, a two piece shield is provided for shielding a reservoir without a fill hole.
摘要翻译：在一个示例中，提供了具有屏蔽构件的流体动力轴承马达。在一个示例中，该方法包括布置围绕旋转轴线相对旋转的第一构件和第二构件。环形屏蔽构件附接到第一构件，屏蔽构件邻近流体储存器设置以容纳轴承流体。储存器通过屏蔽构件中的孔（例如，填充孔）填充。此后，孔径至少部分地被密封。孔可以通过一个或多个激光脉冲气密密封。在其他示例中，提供了一个用于屏蔽储存器而没有填充孔的双件式屏蔽件。

7. 发明授权

US07892100B2 Dual tapered shaft for FDB motor 有权
标题翻译：双锥形轴用于FDB电机
公开(公告)号：US07892100B2
公开(公告)日：2011-02-22
申请号：US12102720
申请日：2008-04-14
申请人： Jeffry A. LeBlanc , Troy M. Herndon , Mohammad M. Ameen , Raquib U. Kahn
发明人： Jeffry A. LeBlanc , Troy M. Herndon , Mohammad M. Ameen , Raquib U. Kahn
IPC分类号： F16C3/00
CPC分类号： F16C3/02 , F16C33/107 , F16C2370/12 , H02K5/1677
摘要： For motors having a journal with one or more groove regions and a shaft for relative rotation in the journal, aspects include providing a dual tapered shaft. The shaft may be tapered by the application of a wear resistant coating at least opposite the groove regions. The coating introduces a shaft taper from near a top end and from near a bottom end towards the shaft middle. The shaft taper may provide for improved pumping efficiency. The coating may be applied in various processes such as chemical vapor deposition or physical vapor deposition to establish a thickness gradient of coating material from near the top end and near the bottom end towards the shaft middle. In one example, the coating includes a DLC coating. Additionally, shaft portions may be shielded to prevent coatings thereon.
摘要翻译：对于具有带有一个或多个凹槽区域的轴颈和用于在轴颈中相对旋转的轴的马达，方面包括提供双锥形轴。轴可以通过施加至少相对于凹槽区域的耐磨涂层而变细。涂层从顶端附近和靠近底端的轴中心引入轴锥。轴锥度可以提供改善的泵送效率。该涂层可以以各种方法施加，例如化学气相沉积或物理气相沉积，以建立涂层材料的厚度梯度，从顶端附近和底端附近向轴中间附近。在一个实例中，涂层包括DLC涂层。此外，可以屏蔽轴部分以防止其上的涂层。

8. 发明申请

US20100053807A1 LUBRICATED LIMITER FOR FLUID DYNAMIC BEARING MOTOR 有权
标题翻译：流体动力轴承电机润滑限值
公开(公告)号：US20100053807A1
公开(公告)日：2010-03-04
申请号：US12615992
申请日：2009-11-10
申请人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： A component for restricting relative movement of a rotor and a shaft is disclosed. A motor may include a shaft and a rotor, where the rotor is disposed for relative rotation with respect to said shaft. A component is operable to restrict relative movement of the rotor and the shaft, where the component includes a first surface operable to receive a fluid.
摘要翻译：公开了一种用于限制转子和轴的相对运动的部件。马达可以包括轴和转子，其中转子被设置成相对于所述轴相对旋转。组件可操作以限制转子和轴的相对运动，其中部件包括可操作以接收流体的第一表面。

9. 发明授权

US07423839B2 Low power support pads for moment loading and associated methods 有权
标题翻译：低功率支撑垫用于力矩加载和相关方法
公开(公告)号：US07423839B2
公开(公告)日：2008-09-09
申请号：US11084758
申请日：2005-03-18
申请人： Troy M. Herndon , Christopher M. Woldemar , Jose L. Cordova , Alan L. Grantz , Norbert S. Parsoneault
发明人： Troy M. Herndon , Christopher M. Woldemar , Jose L. Cordova , Alan L. Grantz , Norbert S. Parsoneault
IPC分类号： G11B17/02
CPC分类号： G11B19/2018
摘要： In one aspect, a fluid dynamic bearing system is provided. The system may include a first member and a second member disposed for relative rotation about an axis of rotation and having opposing substantially planar surfaces defining an axial gap. A bearing region is disposed circumferentially around the axis of rotation and a relatively large gap region is disposed circumferentially around the bearing region, the large gap region having an average gap distance greater than the bearing region. The large gap region further includes at least one support pad forming a localized narrow gap distance in the axial gap to provide support between the opposed surfaces at a radial distance greater than the bearing region. For example, the support pad may support the surfaces against an externally applied force or moment that may tilt one member relative to the other.
摘要翻译：一方面，提供一种流体动力轴承系统。该系统可以包括第一构件和第二构件，第二构件和第二构件设置成围绕旋转轴线相对旋转并且具有限定轴向间隙的相对的基本平坦的表面。轴承区域围绕旋转轴线周向地布置，并且相对较大的间隙区域围绕轴承区域周向设置，该大间隙区域具有大于轴承区域的平均间隙距离。大的间隙区域还包括至少一个支撑垫，其在轴向间隙中形成局部的窄间隙距离，以在相对表面之间以比轴承区域更大的径向距离提供支撑。例如，支撑垫可以抵抗可能使一个构件相对于另一个倾斜的外部施加的力或力矩来支撑表面。

10. 发明授权

US07626783B2 Lubricated limiter for fluid dynamic bearing motor 有权
标题翻译：流体动力轴承电机润滑限位器
公开(公告)号：US07626783B2
公开(公告)日：2009-12-01
申请号：US12119410
申请日：2008-05-12
申请人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： In one example, a FDB motor having a top-cover attached, EM biased bearing system is provided. The motor includes a shaft and rotor disposed for relative rotation, and an axial limiter for restricting axial movement of the rotor with respect to the shaft, wherein the axial limiter is wet or lubricated during contact. The limiter is spatially fixed with respect to one of the shaft or the rotor and disposed with an axial end surface opposing a surface portion spatially fixed with respect to the other of the shaft or the rotor to form a gap therebetween. The gap may be filled with a fluid such as bearing lubricant, thereby providing a lubricated or wet contact surface to restrict axial movement of the shaft and rotor. Additionally, one or both surfaces may include a groove or slot to provide circulation of fluid through the gap.
摘要翻译：在一个示例中，提供具有顶盖附接的EM偏置轴承系统的FDB电动机。马达包括一个设置用于相对旋转的轴和转子，以及用于限制转子相对于轴的轴向运动的轴向限制器，其中轴向限制器在接触期间被湿润或润滑。限制器相对于轴或转子中的一个空间地固定，并且设置有与相对于轴或转子中的另一个空间固定的表面部分相对的轴向端表面，以在它们之间形成间隙。间隙可以填充有诸如轴承润滑剂的流体，从而提供润滑或湿的接触表面以限制轴和转子的轴向运动。另外，一个或两个表面可以包括槽或槽，以提供流体通过间隙的循环。

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