专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US06371649B1 Method for lubricating a fluid dynamic pressure bearing 失效
标题翻译：润滑流体动压轴承的方法
公开(公告)号：US06371649B1
公开(公告)日：2002-04-16
申请号：US09420172
申请日：1999-10-18
申请人： Naoki Kawawada , Tadao Iwaki , Atsushi Ota , Koji Nitadori , Toshiharu Kogure , Hiromitsu Goto , Isamu Takehara , Yukihiro Nakayama , Ryoji Yoneyama , Takahumi Suzuki
发明人： Naoki Kawawada , Tadao Iwaki , Atsushi Ota , Koji Nitadori , Toshiharu Kogure , Hiromitsu Goto , Isamu Takehara , Yukihiro Nakayama , Ryoji Yoneyama , Takahumi Suzuki
IPC分类号： F16C1710
CPC分类号： F16C33/1025 , B60K6/365 , B60K6/445 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , F16C33/10 , F16C33/107 , F16N2210/14 , H02K15/14 , Y02T10/6239 , Y02T10/6286 , Y10S903/903 , Y10S903/91
摘要： A method for lubricating a part without leaving air bubbles includes the steps of assembling components so that an open end is formed for application of lubricating fluid and a fluid path is provided through which the lubricating fluid is to be circulated, introducing the lubricating fluid into the open end and applying a centrifugal force to the component by moving the component about a circular path so that the centrifugal force causes the lubricating fluid to be urged throughout the fluid path. The method is used in an embodiment to lubricate a dynamic pressure bearing having a gap between relatively moving parts. The gap has an open end into which the lubrication fluid is dripped and a closed end. During movement of the bearing about a circular path, the fluid is urged from the open end to the closed end.
摘要翻译：用于在不留下气泡的情况下润滑部件的方法包括组装部件的步骤，以形成用于施加润滑流体的开口端，并且提供流体路径，通过该流体路径润滑流体将被循环，将润滑流体引入到开口端并通过围绕圆形路径移动部件而向组件施加离心力，使得离心力使润滑流体在整个流体路径中被推动。在一个实施例中使用该方法来润滑在相对运动部件之间具有间隙的动压轴承。间隙具有打开的端部，润滑液滴入其中并且封闭的端部。在轴承围绕圆形路径移动期间，流体从开口端向封闭端被推动。

12. 发明授权

US07709981B2 Stator, motor and record medium drive apparatus and method of fabricating stator 失效
标题翻译：定子，电动机和记录介质驱动装置和定子的制造方法
公开(公告)号：US07709981B2
公开(公告)日：2010-05-04
申请号：US11975280
申请日：2007-10-18
申请人： Masahiro Nakajima , Akiko Ishikura , Naoki Kawawada , Norio Chiba
发明人： Masahiro Nakajima , Akiko Ishikura , Naoki Kawawada , Norio Chiba
IPC分类号： H02K11/00
CPC分类号： G11B19/2009 , H02K3/26 , H02K3/522 , H02K5/225 , H02K21/16 , H02K21/22 , H02K2203/03 , Y10T29/49009
摘要： A stator includes a base board, a plurality of coil patterns patterned on one face of the base board, a stator core having a ring-like portion formed in a ring-like shape, a plurality of teeth base ends of which are fixed to the ring-like portion and front end portions formed respectively at front ends of the plurality of teeth in which the coil patterns and the teeth are laminated onto the base board to be respectively opposed to each other, and covers having base members bonded to the base board in a state of being respectively fitted to the plurality of teeth and covering surroundings of the respective teeth and conductive patterns patterned to inner faces of the base members and electrically connected to the coil patterns.
摘要翻译：定子包括基板，在基板的一个面上图案化的多个线圈图案，具有形成为环状形状的环状部分的定子芯，其多个基端固定在该基板上环状部分和前端部分别形成在多个齿的前端，其中线圈图案和齿分别彼此相对地叠置在基板上，盖子具有接合到基板的基部构件在分别安装到多个齿并覆盖各个齿的周围的状态和图案化到基部构件的内表面并且电连接到线圈图案的导电图案的状态。

13. 发明授权

US06307291B1 Hydraulic dynamic bearing and spindle motor and rotary assembly provided 有权
标题翻译：提供液压动力轴承和主轴电机和旋转组件
公开(公告)号：US06307291B1
公开(公告)日：2001-10-23
申请号：US09414243
申请日：1999-10-07
申请人： Tadao Iwaki , Isamu Takehara , Yukihiro Nakayama , Ryouji Yoneyama , Takafumi Suzuki , Toshiharu Kogure , Hiromitsu Goto , Naoki Kawawada , Atsushi Ota , Koji Nitadori
发明人： Tadao Iwaki , Isamu Takehara , Yukihiro Nakayama , Ryouji Yoneyama , Takafumi Suzuki , Toshiharu Kogure , Hiromitsu Goto , Naoki Kawawada , Atsushi Ota , Koji Nitadori
IPC分类号： H02K516
CPC分类号： F16C33/107 , F16C17/045 , F16C17/107 , F16C2370/12 , G11B19/2009 , H02K5/1677 , H02K7/086
摘要： The present invention is a double sleeve type fluid dynamic pressure bearing, comprising a fixed shaft having respective ends to be fixed to a utilized apparatus; a rotary sleeve arranged to provide a first fine gap between an inner peripheral surface thereof and an outer peripheral surface of the fixed shaft, a fixed sleeve arranged to provide a second fine gap between an inner peripheral surface thereof and an outer peripheral surface of the rotary sleeve, a holder member arranged to cooperate with a lower end surface of the rotary sleeve to provide a third gap, and wherein the first fine gap and the second fine gap are formed with radial dynamic pressure producing grooves while the third fine gap is formed with a thrust dynamic pressure producing groove, the first, second and third fine gaps being filled with lubrication oil, the first fine gap and the second fine gap having one ends made as opening ends contacting with the air and the other ends made as closed ends communicated with each other through the third fine gap.
摘要翻译：本发明是一种双套筒式流体动压轴承，其特征在于，包括一固定轴，该固定轴具有固定在所使用的装置上的各自端部; 旋转套筒，其布置成在其内周表面和固定轴的外周表面之间提供第一细微间隙;固定套筒，其布置成在其内周表面和旋转体的外周表面之间提供第二细微间隙套筒，配置成与旋转套筒的下端面协作以提供第三间隙的保持器构件，并且其中第一细间隙和第二细间隙形成有径向动压产生槽，而第三细间隙形成有推力动压产生槽，第一，第二和第三细间隙填充有润滑油，第一细间隙和第二细间隙具有一端，其开口端与空气接触，另一端形成为封闭端连通相互通过第三个细微差距。

14. 发明授权

US06247848B1 Hydraulic dynamic bearing and spindle motor utilizing hydraulic dynamic bearing 有权
标题翻译：液压动力轴承和主轴电机采用液压动力轴承
公开(公告)号：US06247848B1
公开(公告)日：2001-06-19
申请号：US09535377
申请日：2000-03-24
申请人： Tadao Iwaki , Shigeru Ohki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori , Isamu Takehara , Hiromitsu Goto , Takafumi Suzuki
发明人： Tadao Iwaki , Shigeru Ohki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori , Isamu Takehara , Hiromitsu Goto , Takafumi Suzuki
IPC分类号： F16C1710
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C33/74
摘要： A hydraulic dynamic bearing has a rotational assembly and a bearing member for rotationally supporting the rotational assembly. The bearing member has a main body having a recess portion and a cover for covering an open end of the recess portion. The rotational assembly has a shaft main body having an end portion extending into the recess of the bearing main body for undergoing rotation relative thereto and a ring member disposed in the recess of the bearing main body. The ring member is connected to the end portion of the shaft main body for rotation therewith. Axial dynamic pressure generating grooves are formed in upper and lower surface portions of the ring member for generating axial dynamic pressure during rotation of the rotational assembly. Radial dynamic pressure generating grooves are formed in an outer peripheral surface portion of the ring member for generating radial dynamic pressure during rotation of the rotational assembly. Spaces are formed between the bearing member and the rotational assembly for storing a lubricant.
摘要翻译：液压动态轴承具有旋转组件和用于旋转地支撑旋转组件的支承构件。所述轴承构件具有主体，所述主体具有凹部和覆盖所述凹部的开口端的盖。旋转组件具有轴主体，其具有延伸到轴承主体的凹部中的端部，用于相对于其旋转，并且环构件设置在轴承主体的凹部中。环构件连接到轴主体的端部以与其一起旋转。轴向动压产生槽形成在环件的上表面和下表面部分中，用于在旋转组件转动期间产生轴向动压。径向动压产生槽形成在环件的外周表面部分中，用于在旋转组件旋转期间产生径向动压。在轴承构件和用于储存润滑剂的旋转组件之间形成空间。

15. 发明授权

US06246139B1 Spindle motor and method of formation 失效
标题翻译：主轴电机及其形成方法
公开(公告)号：US06246139B1
公开(公告)日：2001-06-12
申请号：US09535379
申请日：2000-03-24
申请人： Tadao Iwaki , Hiromitsu Goto , Naoki Kawawada , Takafumi Suzuki , Mitsuharu Iwamoto
发明人： Tadao Iwaki , Hiromitsu Goto , Naoki Kawawada , Takafumi Suzuki , Mitsuharu Iwamoto
IPC分类号： H02K1500
CPC分类号： H02K7/086 , H02K15/00
摘要： In a method for assembling a spindle motor having a liquid dynamic pressure bearing having a flanged shaft member formed by press-fitting a dynamic pressure ring member on a cylindrical member, a hub is press-fit on the flanged shaft member without causing deviation in the press-fit position of the dynamic pressure ring member. A hub press-fitting apparatus press fits a mount hole of the hub on a cylindrical end portion of the cylindrical member. The hub press-fitting apparatus comprises a hub holding member, a rotation shaft member, a coupling member, and an anti-rotation member. During assembly, a temporary coupling between the hub press-fitting apparatus and the liquid dynamic pressure bearing is made by screwing a threaded tap in a tap hole provided in an end face of the cylindrical member.
摘要翻译：在具有液压动力轴承的主轴电动机的组装方法中，具有通过将动压环部件压配合在圆筒部件上而形成的带凸缘的轴部件，毂部压配合在凸缘轴部件上，压力环构件的压配合位置。轮毂压配装置压配合轮毂的安装孔在圆柱形构件的圆柱形端部上。轮毂压入装置包括轮毂保持构件，旋转轴构件，联接构件和防旋转构件。在组装期间，轮毂压入装置和液体动压轴承之间的临时联接通过在设置在圆柱形构件的端面中的抽头孔中旋拧螺纹丝锥而制成。

16. 发明授权

US06176618B1 Dynamic pressure bearing, spindle motor using dynamic pressure bearing, and rotary device having the spindle motor as driving source 有权
标题翻译：动压轴承，使用动压轴承的主轴电机，以及以主轴电机为驱动源的旋转装置
公开(公告)号：US06176618B1
公开(公告)日：2001-01-23
申请号：US09215723
申请日：1998-12-18
申请人： Naoki Kawawada , Isamu Takehara
发明人： Naoki Kawawada , Isamu Takehara
IPC分类号： F16C3206
CPC分类号： F16C33/107 , F16C17/045 , F16C2370/12
摘要： A spindle motor has a rotor, a stator and a dynamic pressure bearing for supporting the rotor for rotation relative to the stator. The dynamic pressure bearing comprises a rotational shaft mounted for undergoing rotation and having a thrust bearing portion and a radial bearing portion. A bearing member rotatably supports the rotational shaft and has a closed end forming a small diameter cylinder portion for receiving the radial bearing portion of the rotational shaft and an open end forming a large diameter cylinder portion for receiving the thrust bearing portion of the rotational shaft such that first gaps for receiving a lubricating oil are formed between the rotational shaft and the bearing member. A thrust pressure member is connected to the bearing member to form a capillary seal between the rotational shaft and the open end of the bearing member and to form second gaps between the thrust pressure member and the rotational shaft for receiving a lubricating oil. An oil receiving groove is formed in at least one of the thrust pressure member and the rotational shaft for receiving a lubricating oil.
摘要翻译：主轴电机具有转子，定子和用于支撑转子相对于定子旋转的动压轴承。动压轴承包括安装成用于转动并具有止推轴承部分和径向轴承部分的旋转轴。轴承构件可旋转地支撑旋转轴并且具有形成用于接收旋转轴的径向轴承部分的小直径圆筒部分的封闭端和形成用于接收旋转轴的推力轴承部分的大直径圆筒部分的开口端，用于接收润滑油的第一间隙形成在旋转轴和支承构件之间。推力加压构件连接到轴承构件，以在旋转轴和轴承构件的开口端之间形成毛细管密封，并且在推力构件和旋转轴之间形成用于接收润滑油的第二间隙。在止推压力构件和旋转轴中的至少一个中形成油接收槽，用于接收润滑油。

17. 发明授权

US6040648A Spindle motor and rotator device 有权
标题翻译：主轴电机和转子装置
公开(公告)号：US6040648A
公开(公告)日：2000-03-21
申请号：US235671
申请日：1999-01-22
申请人： Naoki Kawawada , Hiroaki Namiki , Isamu Takehara , Tadao Iwaki , Takashi Ishida , Shinichi Hayashizaki , Hirotada Shimaguchi , Katsushige Konno
发明人： Naoki Kawawada , Hiroaki Namiki , Isamu Takehara , Tadao Iwaki , Takashi Ishida , Shinichi Hayashizaki , Hirotada Shimaguchi , Katsushige Konno
IPC分类号： F16C17/10 , F16C33/10 , H02K7/08 , H02K21/22 , H02K29/00 , H02K5/16 , F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , H02K7/085
摘要： A spindle motor having a simplified construction with reduced axial and radial deflection while avoiding the half whirl phenomenon includes a motor frame, a rotating shaft supporting a rotor, a stator and stator coil, a permanent magnet opposing the stator, and a liquid dynamic pressure bearing. Magnetic centers of the permanent magnet and stator coil, in the axial direction of the rotating shaft, are substantially matched. The liquid dynamic pressure bearing comprises opposing surfaces of the rotating shaft and the housing. The rotating shaft has a disk-shaped thrust bearing portion disposed in a first portion of a cylindrical hole of the housing, and a radial bearing portion disposed in a second portion of the cylindrical hole. Lubricating oil fills a space between the cylindrical hole and the thrust bearing portion and radial bearing portion, and a presser ring is pressed and fixed into a third portion of the cylindrical hole to seal the bearing. A boss portion of the rotor is fixed to a rotor supporting portion of the rotating shaft so that an inner peripheral surface of the boss portion mates with an outer peripheral surface of the rotor supporting portion. The rotating shaft has three axially-spaced portions, with the disk-shaped thrust bearing portion formed between and having a larger diameter than the other portions. A stage is provided between the thrust bearing portion and the rotor supporting portion to serve as a seat for installation of the boss portion.
摘要翻译：具有减小的轴向和径向偏转同时避免半旋转现象的简化结构的主轴电机包括马达框架，支撑转子的旋转轴，定子和定子线圈，与定子相对的永磁体以及液体动压轴承。永久磁铁和定子线圈在旋转轴的轴向方向上的磁心基本匹配。液体动压轴承包括旋转轴和壳体的相对表面。旋转轴具有设置在壳体的圆筒孔的第一部分中的盘形推力轴承部分和设置在圆柱形孔的第二部分中的径向支承部分。润滑油填充圆柱形孔与推力轴承部分和径向支承部分之间的空间，并且压紧环被压紧并固定到圆柱形孔的第三部分中以密封轴承。转子的凸台部固定在转轴的转子支承部上，使凸台部的内周面与转子支承部的外周面配合。旋转轴具有三个轴向间隔开的部分，其中盘形止推轴承部分形成在直径大于其它部分的直径之间。在推力轴承部分和转子支撑部分之间设置有用作安装凸起部分的座的台架。

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