CN100543327C - 流体动压轴承装置、具有流体动压轴承装置的主轴电机以及记录盘驱动装置 - Google Patents

流体动压轴承装置、具有流体动压轴承装置的主轴电机以及记录盘驱动装置 Download PDF

Info

Publication number
CN100543327C
CN100543327C CN200580042082.5A CN200580042082A CN100543327C CN 100543327 C CN100543327 C CN 100543327C CN 200580042082 A CN200580042082 A CN 200580042082A CN 100543327 C CN100543327 C CN 100543327C
Authority
CN
China
Prior art keywords
dynamic pressure
bearing
bearing device
peripheral surface
lubricant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200580042082.5A
Other languages
English (en)
Chinese (zh)
Other versions
CN101072954A (zh
Inventor
F·希古基
N·康多
T·霍里乌基
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minebea Co Ltd
Original Assignee
Minebea Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minebea Co Ltd filed Critical Minebea Co Ltd
Publication of CN101072954A publication Critical patent/CN101072954A/zh
Application granted granted Critical
Publication of CN100543327C publication Critical patent/CN100543327C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G11B19/2018—Incorporating means for passive damping of vibration, either in the turntable, motor or mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • F16C33/741—Sealings of sliding-contact bearings by means of a fluid
    • F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
    • F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sliding-Contact Bearings (AREA)
  • Rotational Drive Of Disk (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Sealing Of Bearings (AREA)
CN200580042082.5A 2004-12-10 2005-11-30 流体动压轴承装置、具有流体动压轴承装置的主轴电机以及记录盘驱动装置 Expired - Fee Related CN100543327C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP358324/2004 2004-12-10
JP2004358324A JP4619763B2 (ja) 2004-12-10 2004-12-10 流体動圧軸受装置および該流体動圧軸受装置を備えたスピンドルモータ並びに記録ディスク駆動装置

Publications (2)

Publication Number Publication Date
CN101072954A CN101072954A (zh) 2007-11-14
CN100543327C true CN100543327C (zh) 2009-09-23

Family

ID=36204351

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200580042082.5A Expired - Fee Related CN100543327C (zh) 2004-12-10 2005-11-30 流体动压轴承装置、具有流体动压轴承装置的主轴电机以及记录盘驱动装置

Country Status (5)

Country Link
US (1) US7576947B2 (2)
JP (1) JP4619763B2 (2)
CN (1) CN100543327C (2)
DE (1) DE112005002835T5 (2)
WO (1) WO2006061684A1 (2)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4428364B2 (ja) 2006-07-05 2010-03-10 ソニー株式会社 軸受ユニット及びこの軸受ユニットを用いたモータ
JP2008248916A (ja) 2007-03-29 2008-10-16 Matsushita Electric Ind Co Ltd 流体軸受装置およびそれを備えたスピンドルモータ、ディスク駆動装置
JP5151268B2 (ja) * 2007-06-25 2013-02-27 日本電産株式会社 モータおよびディスク駆動装置
US8454239B2 (en) * 2007-07-31 2013-06-04 Ntn Corporation Fluid dynamic bearing device and assembling method thereof
JP5578346B2 (ja) * 2009-11-06 2014-08-27 日本電産株式会社 チャッキング装置、ブラシレスモータおよびディスク駆動装置、並びに、チャッキング装置の製造方法
US20110019303A1 (en) * 2008-05-26 2011-01-27 Nidec Corporation Fluid dynamic bearing apparatus, spindle motor, and disk drive apparatus
KR100997189B1 (ko) * 2008-11-14 2010-11-29 삼성전기주식회사 모터
KR101084826B1 (ko) 2010-05-19 2011-11-21 삼성전기주식회사 유체 동압 베어링 모터
KR101829724B1 (ko) * 2010-09-23 2018-02-19 보르그워너 인코퍼레이티드 배기가스 터보차저의 ｖｔｇ 카트리지
KR101090029B1 (ko) * 2010-11-22 2011-12-05 삼성전기주식회사 모터 및 이를 포함하는 기록 디스크 구동장치
DE102010056251A1 (de) * 2010-12-24 2012-06-28 Minebea Co., Ltd. Fluidlager
JP2012225386A (ja) * 2011-04-18 2012-11-15 Ntn Corp 流体動圧軸受装置
US20130342062A1 (en) * 2012-06-22 2013-12-26 Nidec Corporation Motor for rotationally supporting a hard disk
JP2014105783A (ja) * 2012-11-28 2014-06-09 Samsung Electromechanics Japan Advanced Technology Co Ltd 回転機器
US8970984B1 (en) 2014-04-29 2015-03-03 Western Digital Technologies, Inc. Grooved cylindrical seal with increased radial clearance for reduced cost disk drive spindle
DE102014019055A1 (de) * 2014-12-22 2016-06-23 Minebea Co., Ltd. Fluiddynamisches Lagersystem zur Drehlagerung eines Spindelmotors
KR102048574B1 (ko) * 2018-08-23 2020-01-22 엘지전자 주식회사 모터 및 그 제조방법
KR102358176B1 (ko) * 2019-11-18 2022-02-08 엘지전자 주식회사 모터
CN113644780B (zh) * 2021-07-28 2022-06-10 智新科技股份有限公司 一种电机定位装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1331509A (zh) * 2000-06-24 2002-01-16 三星电机株式会社 流体动压轴承电动机
US20030230944A1 (en) * 2002-06-12 2003-12-18 Aiello Anthony Joseph Low profile thrust journal plate fluid dynamic bearing motor
CN1463066A (zh) * 2002-05-17 2003-12-24 株式会社三协精机制作所 油动压轴承电动机、油动压轴承装置及其制造方法
US20040008911A1 (en) * 2002-07-15 2004-01-15 Minebea Co., Ltd. Hydrodynamic bearing, spindle motor and hard disk drive

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2937833B2 (ja) 1994-11-15 1999-08-23 株式会社三協精機製作所 軸受のシール装置
JPH08331796A (ja) 1995-06-02 1996-12-13 Matsushita Electric Ind Co Ltd 流体軸受を備えたモータ
JPH1155897A (ja) * 1997-07-28 1999-02-26 Tokyo Parts Ind Co Ltd 動圧軸受型モータ
JP3155529B2 (ja) 1998-08-08 2001-04-09 日本電産株式会社 流体動圧軸受を備えたモータ及びこのモータを備えた記録ディスク駆動装置
JP3828437B2 (ja) * 2002-03-07 2006-10-04 日本電産株式会社 スピンドルモータ及びこれを備えたディスク駆動装置
US20030202721A1 (en) * 2002-04-30 2003-10-30 Minebea Co., Ltd. Spindle motor having a fluid dynamic bearing system
US6948852B2 (en) * 2002-07-15 2005-09-27 Minebea Co., Ltd. Hydrodynamic bearing, spindle motor and hard disk drive
JP4236891B2 (ja) * 2002-09-26 2009-03-11 Ｎｔｎ株式会社 動圧軸受装置
US7492548B2 (en) * 2003-04-24 2009-02-17 Matsushita Electric Industrial Co., Ltd. Hydrodynamic bearing device and disk rotating apparatus
JP2005045924A (ja) * 2003-07-22 2005-02-17 Nippon Densan Corp スピンドルモータ、このスピンドルモータに適用されるロータの製造方法、及びこのスピンドルモータを備えたハードディスク駆動装置
JP4639833B2 (ja) * 2004-06-23 2011-02-23 日本電産株式会社 スピンドルモータ及びこのスピンドルモータを備えた記録ディスク駆動装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1331509A (zh) * 2000-06-24 2002-01-16 三星电机株式会社 流体动压轴承电动机
CN1463066A (zh) * 2002-05-17 2003-12-24 株式会社三协精机制作所 油动压轴承电动机、油动压轴承装置及其制造方法
US20030230944A1 (en) * 2002-06-12 2003-12-18 Aiello Anthony Joseph Low profile thrust journal plate fluid dynamic bearing motor
US20040008911A1 (en) * 2002-07-15 2004-01-15 Minebea Co., Ltd. Hydrodynamic bearing, spindle motor and hard disk drive

Also Published As

Publication number Publication date
US7576947B2 (en) 2009-08-18
JP2006162029A (ja) 2006-06-22
DE112005002835T5 (de) 2007-11-29
CN101072954A (zh) 2007-11-14
WO2006061684A1 (en) 2006-06-15
JP4619763B2 (ja) 2011-01-26
US20080130168A1 (en) 2008-06-05

Similar Documents

Publication Publication Date Title
CN100543327C (zh) 流体动压轴承装置、具有流体动压轴承装置的主轴电机以及记录盘驱动装置
US8858084B2 (en) Rotating device and component for fluid dynamic bearing unit thereof
CN101868638B (zh) 流体动压轴承装置、主轴电机以及盘驱动装置
US8506168B2 (en) Disk drive device improved in anti-vibration characteristic
US7317271B2 (en) Fluid bearing motor, and disk drive mounted with same
JP2004286145A (ja) 動圧軸受及びこれを用いたスピンドルモータ並びにこのスピンドルモータを備えたディスク駆動装置
US20040104634A1 (en) Spindle motor and disk drive utilizing the spindle motor
US20110279925A1 (en) Rotating device and a method for manufacturing a rotating device
JP2009008200A (ja) 流体軸受装置およびスピンドルモータ
US20070201779A1 (en) Hydrodynamic bearing motor
JP2006017299A (ja) 流体動圧軸受とこれを備えたスピンドルモータ及び記録ディスク駆動装置
JP4387114B2 (ja) 軸受機構、モータおよびディスク駆動装置
JP2006022951A (ja) 流体動圧軸受、該流体動圧軸受を備えたスピンドルモータ並びに記録ディスク駆動装置
US7661882B2 (en) Fluid dynamic pressure bearing device, spindle motor provided with the fluid dynamic pressure bearing device, and recording disk drive device
US7246945B2 (en) Oil dynamic bearing, motor supported on oil dynamic bearing and disk drive carrying the motor
JP2006105177A (ja) 流体軸受装置、スピンドルモータ、及びディスク記録再生装置
JP2008072900A (ja) 動圧軸受装置を使用したスピンドルモータ
JP2005054990A (ja) 流体動圧軸受システム、及びその流体動圧軸受システムを備えるスピンドルモータ
JP2008121849A (ja) 動圧流体軸受装置、スピンドルモータおよび記録再生装置
JP2006211795A (ja) スピンドルモータ
JPH11285200A (ja) 流体軸受スピンドルモータ
JP3878838B2 (ja) 動圧軸受及びこれを備えたスピンドルモータ並びにこのスピンドルモータを有するディスク駆動装置
JP2007024199A (ja) 流体軸受装置、モータおよび情報装置
JP2002165408A (ja) モータ
JP2006325329A (ja) スピンドルモータおよびこのスピンドルモータを用いたディスク駆動装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Higuchi Fumiko

Inventor after: Kondo Hisano

Inventor after: Horiuchi Toshihikaru

Inventor before: Higuchi Fumiyasu

Inventor before: N. Condor

Inventor before: Horiuchi Toshimitsu

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: F. XIGUJI N . KONDO T. HORIURKI TO: HIGUCHI YASUSHI KONDOU TAKAYUKI BINHIKA HORIUCHI

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090923

CF01 Termination of patent right due to non-payment of annual fee