DE69425119D1 - Aufzeichnungsplattengerät und rotierende Halterungsstruktur dafür - Google Patents
Aufzeichnungsplattengerät und rotierende Halterungsstruktur dafürInfo
- Publication number
- DE69425119D1 DE69425119D1 DE69425119T DE69425119T DE69425119D1 DE 69425119 D1 DE69425119 D1 DE 69425119D1 DE 69425119 T DE69425119 T DE 69425119T DE 69425119 T DE69425119 T DE 69425119T DE 69425119 D1 DE69425119 D1 DE 69425119D1
- Authority
- DE
- Germany
- Prior art keywords
- bearing portion
- lubricant
- thrust bearing
- support structure
- rotating support
- 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 - Lifetime
Links
- 239000000314 lubricant Substances 0.000 abstract 7
- 239000011553 magnetic fluid Substances 0.000 abstract 2
Classifications
-
- 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
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
-
- 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
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/047—Sliding-contact bearings for exclusively rotary movement for axial load only with fixed wedges to generate hydrodynamic pressure
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
- F16C33/1035—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing by a magnetic field acting on a magnetic liquid
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/107—Grooves for generating pressure
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1075—Wedges, e.g. ramps or lobes, for generating pressure
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- 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
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Power Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Rotational Drive Of Disk (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31326593A JP3472934B2 (ja) | 1993-12-14 | 1993-12-14 | 磁気ディスク装置 |
JP32156493A JPH07182771A (ja) | 1993-12-21 | 1993-12-21 | 光または磁気ディスク装置 |
JP296094A JPH07208472A (ja) | 1994-01-17 | 1994-01-17 | 磁気ディスク装置のスピンドルモータ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69425119D1 true DE69425119D1 (de) | 2000-08-10 |
DE69425119T2 DE69425119T2 (de) | 2001-02-15 |
Family
ID=27275609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69425119T Expired - Lifetime DE69425119T2 (de) | 1993-12-14 | 1994-12-08 | Aufzeichnungsplattengerät und rotierende Halterungsstruktur dafür |
Country Status (4)
Country | Link |
---|---|
US (1) | US5659445A (de) |
EP (1) | EP0658895B1 (de) |
CN (1) | CN1047865C (de) |
DE (1) | DE69425119T2 (de) |
Families Citing this family (55)
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---|---|---|---|---|
JP3439292B2 (ja) * | 1995-03-13 | 2003-08-25 | 住友電気工業株式会社 | 動圧気体軸受構造および光偏向走査装置 |
US5634724A (en) * | 1995-08-25 | 1997-06-03 | Quantum Corporation | Hydrodynamic bearing for spindle motor having high inertial load |
JPH0979263A (ja) * | 1995-09-20 | 1997-03-25 | Hitachi Ltd | 軸受装置及びこれを備えたスピンドルモ−タ |
JP3715360B2 (ja) * | 1995-11-20 | 2005-11-09 | 株式会社三協精機製作所 | エアー動圧軸受装置を用いたディスク駆動装置 |
KR19980015100A (ko) * | 1996-08-20 | 1998-05-25 | 이형도 | 하드 디스크 드라이브의 공기 정화 방법 및 장치 |
JPH1113476A (ja) * | 1997-06-26 | 1999-01-19 | Ishikawajima Harima Heavy Ind Co Ltd | 過給機用スラスト軸受 |
JP3266559B2 (ja) * | 1997-08-26 | 2002-03-18 | 三星電機株式会社 | ブラシレスdcモータ |
JP3652875B2 (ja) * | 1998-03-26 | 2005-05-25 | 日本電産株式会社 | モータ |
JPH11283321A (ja) | 1998-03-31 | 1999-10-15 | Hitachi Ltd | 高い衝撃耐久性能を有するディスク駆動装置及び磁気ディスク装置 |
JP3609258B2 (ja) * | 1998-05-19 | 2005-01-12 | 日本電産株式会社 | モータ |
US6456458B1 (en) * | 1998-08-08 | 2002-09-24 | Nidec Corporation | Disk-drive motor rotating on a magnetically counterbalanced single hydrodynamic thrust bearing |
US6250808B1 (en) | 1998-11-20 | 2001-06-26 | Nidec Corporation | Motor having a plurality of dynamic pressure bearings |
JP4215365B2 (ja) * | 1999-02-16 | 2009-01-28 | 株式会社日立グローバルストレージテクノロジーズ | スピンドルモータとそれを用いた磁気ディスク装置 |
JP2000295816A (ja) * | 1999-04-02 | 2000-10-20 | Seiko Instruments Inc | モータ、モータの製造方法、及び回転体装置 |
DE20012673U1 (de) * | 1999-08-10 | 2000-12-07 | Papst Motoren Gmbh & Co Kg | Motor |
US6631053B1 (en) * | 1999-09-28 | 2003-10-07 | Maxtor Corporation | Actuator pivot assembly that pivotally connects an actuator to a base of a disk drive |
TW456094B (en) * | 1999-12-29 | 2001-09-21 | Delta Electronics Inc | Balancing structure of rotator |
JP2002233100A (ja) * | 2001-01-31 | 2002-08-16 | Minebea Co Ltd | スピンドルモータおよび軸受アッセンブリ |
JP2003194045A (ja) * | 2001-12-28 | 2003-07-09 | Sankyo Seiki Mfg Co Ltd | 動圧軸受装置 |
US7016146B2 (en) * | 2002-03-12 | 2006-03-21 | Minebea Co., Ltd. | Low power spindle motor with a fluid dynamic spool bearing |
US6998745B2 (en) * | 2002-03-12 | 2006-02-14 | Minebea Co., Ltd. | Dynamo-electric machine having a rotor with first and second axially or rotationally displacable field magnets |
JP3828452B2 (ja) * | 2002-04-18 | 2006-10-04 | 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用いたディスク駆動装置 |
JP3828457B2 (ja) | 2002-06-13 | 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 |
EP1426949A1 (de) * | 2002-12-03 | 2004-06-09 | Sunonwealth Electric Machine Industry Co., Ltd. | Einstellvorrichtung für den Stator eines optischen Plattenspielermotors |
US6954011B2 (en) * | 2002-12-04 | 2005-10-11 | Sunonwealth Electric Machine Industry Co., Ltd. | Adjusting device for a stator for an optical disk drive motor |
WO2004063582A1 (ja) * | 2003-01-10 | 2004-07-29 | Sony Corporation | 軸受ユニット及びこの軸受ユニットを用いた回転駆動装置 |
KR100528329B1 (ko) * | 2003-02-18 | 2005-11-16 | 삼성전자주식회사 | 하드 디스크 드라이브용 스핀들 모터 |
KR100973666B1 (ko) * | 2003-06-17 | 2010-08-03 | 주성엔지니어링(주) | 원자층증착장치의 가스밸브 어셈블리 |
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 |
US6920013B2 (en) * | 2003-11-07 | 2005-07-19 | Nidec Corporation | Disk drive spindle motor with radial inward thrust area annular protruding portion and bearing member communicating passage |
DE102004007557A1 (de) * | 2004-02-17 | 2005-09-01 | Minebea Co., Ltd. | Hydrodynamisches Lagersystem |
CN1938524B (zh) * | 2004-03-30 | 2011-05-25 | Ntn株式会社 | 动力轴承装置 |
JP2005308057A (ja) * | 2004-04-20 | 2005-11-04 | Matsushita Electric Ind Co Ltd | 流体軸受式回転装置、注油方法及び記録媒体制御装置 |
US20060039632A1 (en) * | 2004-08-20 | 2006-02-23 | Shu-Chin Huang | Dynamic pressure bearing assembly |
JP4418531B2 (ja) * | 2004-09-09 | 2010-02-17 | 日本電産株式会社 | 流体動圧軸受装置及びスピンドルモータ |
US7866047B2 (en) * | 2005-03-18 | 2011-01-11 | Nidec Corporation | Sleeve-unit manufacturing method |
JP2006280046A (ja) * | 2005-03-28 | 2006-10-12 | Nippon Densan Corp | 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 |
TWI283958B (en) * | 2005-05-19 | 2007-07-11 | Delta Electronics Inc | Motor structure for preventing oil leakage |
US7956499B2 (en) | 2005-06-02 | 2011-06-07 | Seagate Technology Llc | Motor magnetic force attenuator |
DE102005032631B4 (de) * | 2005-07-13 | 2007-10-31 | Minebea Co., Ltd., Miyota | Fluiddynamisches Lagersystem |
CN1940322A (zh) * | 2005-09-30 | 2007-04-04 | 富准精密工业(深圳)有限公司 | 流体动压轴承 |
TWI303289B (en) * | 2006-03-31 | 2008-11-21 | Delta Electronics Inc | Fan, bearing structure and sleeve bearing thereof |
US7567003B2 (en) * | 2006-05-02 | 2009-07-28 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Cooling fan |
CN101075759B (zh) * | 2006-05-19 | 2010-05-26 | 富准精密工业(深圳)有限公司 | 散热风扇 |
JP4811186B2 (ja) * | 2006-08-07 | 2011-11-09 | 日本電産株式会社 | 動圧軸受装置 |
JP2008101772A (ja) * | 2006-09-20 | 2008-05-01 | Nippon Densan Corp | スリーブユニットの製造方法、スリーブユニットおよびモータ |
CN101363458B (zh) * | 2007-08-10 | 2010-10-06 | 富准精密工业(深圳)有限公司 | 散热风扇 |
TW200914736A (en) * | 2007-09-28 | 2009-04-01 | Sunonwealth Electr Mach Ind Co | Structure of bearing |
KR101766519B1 (ko) | 2011-07-06 | 2017-08-08 | 제너럴 일렉트릭 캄파니 | 라미네이트형 회전자 가공 향상 |
GB2506784A (en) | 2011-07-06 | 2014-04-09 | Gen Electric | Laminated rotor balancing provisions |
US9279185B2 (en) * | 2012-06-14 | 2016-03-08 | Asm Technology Singapore Pte Ltd | Feed-through apparatus for a chemical vapour deposition device |
US10060470B2 (en) | 2014-10-21 | 2018-08-28 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Thrust bearing and rotary machine |
DE102017102420A1 (de) * | 2017-02-08 | 2018-08-09 | Abb Turbo Systems Ag | Gleitlagerung mit hydrodynamischer axialsicherung |
DE102017205238A1 (de) * | 2017-03-28 | 2018-10-04 | Robert Bosch Gmbh | Anlaufpilz, sowie elektrische Maschine aufweisend einen solchen |
JP6733593B2 (ja) * | 2017-04-13 | 2020-08-05 | 株式会社デンソー | ステップモータ及び車両用指針計器 |
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US5399141A (en) * | 1991-07-23 | 1995-03-21 | Koyo Seiko Co., Ltd. | Roller supporting structure using a dynamic pressure |
EP0541852B1 (de) * | 1991-11-14 | 1997-04-23 | Digital Equipment International Limited | Spindel- und Nabenausrüstung |
US5328272A (en) * | 1991-12-23 | 1994-07-12 | International Business Machines | Spindle system for a disk drive |
JPH05240241A (ja) * | 1992-02-28 | 1993-09-17 | Ebara Corp | スピンドルモータ |
JPH05321928A (ja) * | 1992-05-15 | 1993-12-07 | Matsushita Electric Ind Co Ltd | 動圧型軸受け装置 |
US5463511A (en) * | 1992-09-17 | 1995-10-31 | Hitachi, Ltd. | Spindle unit having pre-load mechanism |
US5457588A (en) * | 1992-09-22 | 1995-10-10 | Nippon Densan Corporation | Low profile hydrodynamic motor having minimum leakage properties |
JPH06333331A (ja) * | 1993-05-20 | 1994-12-02 | Matsushita Electric Ind Co Ltd | ディスク回転装置 |
-
1994
- 1994-12-08 EP EP94119451A patent/EP0658895B1/de not_active Expired - Lifetime
- 1994-12-08 DE DE69425119T patent/DE69425119T2/de not_active Expired - Lifetime
- 1994-12-13 US US08/357,303 patent/US5659445A/en not_active Expired - Lifetime
- 1994-12-14 CN CN94119086A patent/CN1047865C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5659445A (en) | 1997-08-19 |
EP0658895B1 (de) | 2000-07-05 |
CN1115086A (zh) | 1996-01-17 |
CN1047865C (zh) | 1999-12-29 |
EP0658895A3 (de) | 1997-06-04 |
DE69425119T2 (de) | 2001-02-15 |
EP0658895A2 (de) | 1995-06-21 |
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Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD., O |