公开(公告)号：US06741001B2

公开(公告)日：2004-05-25

申请号：US10196173

申请日：2002-07-17

Applicant: Shin-ichi Takayanagi

Inventor： Shin-ichi Takayanagi

IPC: H02K708

CPC classification number: F16C35/04 ,  F16C19/08 ,  F16C2370/12 ,  H02K7/086

Abstract: The fixed shaft type spindle motor of the invention has a fixed shaft extending from a base and a rotor hub rotatably supported thereon through a bearing. Where the bearing is a compound ball bearing, a larger diameter portion of a stepped connection member is fixed within the upper end the outer ring of the compound ball bearing and a smaller diameter portion of the connection member is fixed to the rotor hub. The rotary shaft type spindle motor has a rotary shaft extending within the rotor hub, and the rotary shaft is rotatably supported through the bearing, with the larger diameter portion of the connection member fixed within the lower end of the outer ring of the compound ball bearing and the smaller diameter portion of the connection member fixed to the base.

Abstract translation: 本发明的固定轴式主轴电动机具有从基座延伸的固定轴和通过轴承可旋转地支撑在其上的转子轮毂。 在轴承为复合球轴承的情况下，阶梯式连接部件的较大直径部分固定在复合球轴承的外环的上端内，连接部件的较小直径部分固定在转子毂上。 旋转轴型主轴电机具有在转子毂内延伸的旋转轴，旋转轴通过轴承可旋转地支撑，连接构件的较大直径部分固定在复合球轴承外圈的下端内 并且连接构件的较小直径部分固定到基座。

公开(公告)号：US06720694B2

公开(公告)日：2004-04-13

申请号：US09824725

申请日：2001-04-04

Applicant: Alex Horng ,  Ching-shen Hong

Inventor： Alex Horng ,  Ching-shen Hong

IPC: H02K708

CPC classification number: H02K5/1675

Abstract: A supporting structure includes a metal axle tube, a holding member securely mounted in the axle tube, a supporting member securely mounted in the axle tube and including a supporting portion, and a fixing member securely mounted in the axle tube and including an opening. The holding member includes a hole and an inner flange is formed on an inner periphery defining the hole. A shaft is provided to a center of the rotor and includes an engaging groove. The shaft is extended through the hole of the holding member and the opening of the fixing member with an end face of a distal end of the shaft rotatably resting on the supporting portion of the support member and with the fixing member engaging with the engaging groove of the shaft, whereby the shaft and the inner flange of the holding member have a slight contact therebetween.

Abstract translation: 支撑结构包括金属轴管，固定在轴管中的保持构件，牢固地安装在轴管中并包括支撑部分的支撑构件和牢固地安装在轴管中并包括开口的固定构件。 保持构件包括孔，并且在限定孔的内周上形成有内凸缘。 轴设置在转子的中心并且包括接合槽。 轴通过保持构件的孔和固定构件的开口延伸，轴的远端的端面可旋转地支撑在支撑构件的支撑部分上，并且固定构件与接合槽接合 轴，由此轴和保持构件的内凸缘之间具有轻微的接触。

公开(公告)号：US06608416B2

公开(公告)日：2003-08-19

申请号：US10166630

申请日：2002-06-12

Applicant: Kiyoshi Nishimura

Inventor： Kiyoshi Nishimura

IPC: H02K708

CPC classification number: G11B7/08582 ,  H02K15/16 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: A motor includes a cylindrical rotor having a magnet, a stator having a cylindrical inner peripheral surface opposing to an outer periphery of the rotor, an output shaft projecting from one axial end side of the stator, and a frame fixed to the one axial end side of the stator to pivotally support the output shaft at a distal end thereof. Holes having diameters identical to the inner diameter of the stator are formed in the frame for pivotally supporting the distal end of the output shaft and for fixing the stator. A positioning jig of a diameter slightly smaller than those of the holes are simultaneously inserted into a hole defining the inner peripheral surface of the stator and into the two holes in the frame, and the positioning jig are caused to abut against the inner peripheral surfaces of the holes to effect positioning.

公开(公告)号：US06225720B1

公开(公告)日：2001-05-01

申请号：US09440897

申请日：1999-11-16

Applicant: Girma G. Desta

Inventor： Girma G. Desta

IPC: H02K708

CPC classification number: F16C33/1065 ,  E21B43/128 ,  H02K7/088

Abstract: A self-lubricating bearing for use in submersible oil-filled motors is disclosed. The bearing comprises a bearing housing and is fixed against rotation. A bearing sleeve is disposed in the bearing housing. The bearing sleeve is fixed in the bearing housing, and has a slot disposed therethrough. The bearing housing has an inlet and an outlet defined therethrough that intersect the slot in the bearing sleeve. The bearing is disposed about a rotatable shaft in the motor. Rotation of the shaft will cause oil to be drawn in through the inlet so that the shaft and the bearing surface of the bearing sleeve are lubricated. Rotation will also cause oil drawn in through the inlet to be expelled through the outlet back into the motor so that there is a constant circulation of oil through the bearing to provide lubrication.

Abstract translation: 公开了一种用于潜油充油电动机的自润滑轴承。 该轴承包括一个轴承座并且被固定以防止旋转。 轴承套筒设置在轴承壳体中。 轴承套被固定在轴承壳体中，并且具有穿过其中的槽。 轴承壳体具有穿过其中限定的入口和出口，其与轴承套筒中的槽相交。 轴承围绕马达中的可旋转轴设置。 轴的旋转将导致油通过入口被吸入，使得轴和轴承套的轴承表面被润滑。 旋转也将导致通过入口吸入的油通过出口排出回到电机中，使得油通过轴承不断循环以提供润滑。

公开(公告)号：US06181039B2

公开(公告)日：2001-01-30

申请号：US09330705

申请日：1999-06-11

Applicant: Michael D. Kennedy ,  Alan Lyndon Grantz

Inventor： Michael D. Kennedy ,  Alan Lyndon Grantz

IPC: H02K708

CPC classification number: F16C33/106 ,  F16C33/74 ,  F16C2370/12 ,  G11B19/2009 ,  H02K7/086

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06828709B2

公开(公告)日：2004-12-07

申请号：US10348699

申请日：2003-01-21

Applicant: Alan Lyndon Grantz ,  Anthony J. Aiello

Inventor： Alan Lyndon Grantz ,  Anthony J. Aiello

IPC: H02K708

CPC classification number: F16C33/107 ,  F16C17/026 ,  F16C17/105 ,  F16C17/26 ,  F16C33/10 ,  F16C33/103 ,  F16C33/74 ,  F16C2370/12 ,  G11B19/2018 ,  H02K5/1675

Abstract: The invention is a fluid dynamic bearing motor featuring a stationary assembly supported from a base, a rotating assembly supported on the stationary assembly, a fluid dynamic bearing in a gap between the stationary and rotating assemblies, a radial capillary seal is defined proximate a first end of the gap, and at least one re-circulation hole extending from the radial capillary seal to a second end of the gap.

公开(公告)号：US06815855B2

公开(公告)日：2004-11-09

申请号：US10636422

申请日：2003-08-06

Applicant: Hirokazu Yashiro ,  Youichi Kuwayama

Inventor： Hirokazu Yashiro ,  Youichi Kuwayama

IPC: H02K708

CPC classification number: F04D29/057 ,  F04D19/04 ,  F04D29/023 ,  F05D2300/20 ,  F05D2300/50212 ,  F16C17/02 ,  F16C17/026 ,  F16C33/107 ,  F16C2360/45 ,  H02K7/088 ,  H02K7/09 ,  H02K7/14 ,  H02K21/14

Abstract: A compact turbo-molecular pump having a high depressurizing capability. A motor for rotating a rotor vane includes an air bearing. The air bearing has a rotary cylinder and a fixed surface surrounding the rotary cylinder. The material of the rotary cylinder has a coefficient of thermal expansion that is smaller than that of the material of the fixed surface. Thus, change in the dimensions of the rotary cylinder is smaller than that of the fixed surface even if the temperature of the air bearing rises during operation of the pump. Thus, the rotary cylinder avoids contact with the fixed surface.

公开(公告)号：US06768236B2

公开(公告)日：2004-07-27

申请号：US10604977

申请日：2003-08-29

Applicant: Shinya Tokunaga ,  Kaoru Uenosono

Inventor： Shinya Tokunaga ,  Kaoru Uenosono

IPC: H02K708

CPC classification number: F16C33/107 ,  F16C17/026 ,  F16C17/045 ,  F16C17/107 ,  F16C2370/12 ,  H02K5/1675

Abstract: Spindle motor utilizing a dynamic-pressure bearing device having a full-fill structure and capable of discharging air bubbles from the lubricating oil after it is charged into the bearing device, as well as air bubbles appearing in the oil due to cavitation in handling. Thrust and radial bearing sections are configured within bearing clearances in between the rotor, the shaft, and a shaft-encompassing hollow bearing member. A communicating passage enabling the oil to redistribute itself within the bearing clearances is formed in the bearing member. At least one ray-like groove that reaches from the radially inward edge of dynamic-pressure-generating grooves in the thrust bearing section to the rim of the shaft-encompassing hollow is furnished in the bearing member. When the motor rotates the air bubbles are stirred and minced by the ray-like groove, and migrate toward release at the single oil-air interface.

Abstract translation: 主轴电动机利用具有全填充结构的动压轴承装置，并且能够在润滑油装载到轴承装置中之后从润滑油中排出气泡，以及由于处理中的空化而出现在油中的气泡。 推力轴承和径向轴承部分配置在转子，轴和包含轴的中空轴承部件之间的轴承间隙内。 在轴承构件中形成有使油能够在轴承间隙内重新分布的连通通道。 至少一个从止推轴承部分的动压产生槽的径向向内的边缘到包围轴的中空部分的轮缘的至少一个射线状槽被设置在轴承部件中。 当电动机旋转时，气泡被射线状槽搅拌并切碎，并在单一油 - 空气界面处向释放状态迁移。

公开(公告)号：US06700244B2

公开(公告)日：2004-03-02

申请号：US10160406

申请日：2002-06-04

Applicant: Chun-Pu Hsu

Inventor： Chun-Pu Hsu

IPC: H02K708

CPC classification number: F16H57/033 ,  F16H1/28 ,  H02K5/124 ,  H02K5/161 ,  H02K7/083 ,  H02K7/116 ,  H02K11/33

Abstract: A 3-in-1 motor power system comprises a motor body, a drive control mechanism, and a power transmission mechanism. A drive control circuit box is installed at an end face of the motor body, and a gear housing wherein a deceleration gear module is disposed is installed at the other end face thereof. A circuit board is disposed at an end face of the motor' stator. Stator's signals are transmitted via signal conducting needles to a drive control circuit in the circuit box. A rotor's lower bearing seat is disposed at the other end face of the motor's stator. A solar gear is disposed at the tail end of the rotor's axle, and engages planetary gears of the deceleration gear module. A deceleration gear seat is separately installed at the outer end face of the rotor's lower bearing seat. The deceleration gear module is received in the deceleration gear seat.

Abstract translation: 3合1电动机动力系统包括电动机体，驱动控制机构和动力传递机构。 驱动控制电路箱安装在电动机主体的端面，并且在其另一端面安装有减速齿轮模块的齿轮箱。 电路板设置在电动机定子的端面。 定子的信号通过信号传导针传输到电路箱中的驱动控制电路。 转子的下轴承座设置在电动机定子的另一端面。 太阳能齿轮设置在转子轴的尾端，并接合减速齿轮模块的行星齿轮。 减速齿轮座分别安装在转子下轴承座的外端面。 减速齿轮模块被接收在减速齿轮座中。

公开(公告)号：US06580189B2

公开(公告)日：2003-06-17

申请号：US09911910

申请日：2001-07-24

Applicant: James A. Mooney

Inventor： James A. Mooney

IPC: H02K708

CPC classification number: B06B1/162 ,  F16C3/02 ,  F16C33/6603 ,  F16C33/6651 ,  F16C33/6659 ,  H02K5/1732 ,  H02K7/061 ,  H02K7/083

Abstract: A vibratory motor for a vibratory screening machine including a housing having a main shaft mounting outer shafts at its ends with a slip connection therebetween, bearings mounted on the outer shafts, first lubricant chambers on opposite sides of each of the bearings with a conduit therebetween, eccentric weights on the opposite sides of each bearing in each of the first lubricant chambers, second lubricant chambers outwardly of the first lubricant chambers, ducts between each outermost first lubricant chamber and an adjacent second lubricant chamber, second conduits between the second lubricant chambers, and conduits including the hollow portion of the main shaft and bores in the main shaft and outer shafts for conducting lubricant from the second lubricant chambers to the bearings.

Abstract translation: 一种用于振动筛选机的振动电动机，包括壳体，所述壳体具有主轴，其端部处安装有外部滑动连接的外轴，安装在外轴上的轴承，每个轴承的相对侧上的第一润滑剂腔室之间具有导管， 在每个第一润滑剂室中的每个轴承的相对侧上的偏心重物，在第一润滑剂室外的第二润滑剂室，在每个最外面的第一润滑剂室和相邻的第二润滑剂室之间的管道，第二润滑剂室之间的第二管道和 导管包括主轴的中空部分和主轴中的孔，以及用于将润滑剂从第二润滑剂腔引导到轴承的外轴。