CN100337046C - 动压轴承装置 - Google Patents
动压轴承装置 Download PDFInfo
- Publication number
- CN100337046C CN100337046C CNB031425860A CN03142586A CN100337046C CN 100337046 C CN100337046 C CN 100337046C CN B031425860 A CNB031425860 A CN B031425860A CN 03142586 A CN03142586 A CN 03142586A CN 100337046 C CN100337046 C CN 100337046C
- Authority
- CN
- China
- Prior art keywords
- bearing
- axial
- dynamic pressure
- pressure
- radial dynamic
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 230000001050 lubricating effect Effects 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000011553 magnetic fluid Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
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
- F16C17/10—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
-
- 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
- F16C33/1085—Channels or passages to recirculate the liquid in the bearing
-
- 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
- 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)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002170619A JP4338359B2 (ja) | 2002-06-11 | 2002-06-11 | 動圧軸受装置 |
JP2002170619 | 2002-06-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1482373A CN1482373A (zh) | 2004-03-17 |
CN100337046C true CN100337046C (zh) | 2007-09-12 |
Family
ID=29727768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031425860A Expired - Lifetime CN100337046C (zh) | 2002-06-11 | 2003-06-11 | 动压轴承装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6939047B2 (zh) |
JP (1) | JP4338359B2 (zh) |
CN (1) | CN100337046C (zh) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US7201517B2 (en) * | 2003-06-23 | 2007-04-10 | Nidec Corporation | Hydrodynamic bearing device and a recording disk drive equipped with it |
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 |
DE102004017356A1 (de) * | 2004-04-08 | 2005-11-10 | Minebea Co., Ltd. | Spindelmotor mit einem hydrodynamischen Lagersystem |
US20060002641A1 (en) * | 2004-07-02 | 2006-01-05 | Kura Laboratories Corporation | Fixed shaft type fluid dynamic bearing motor |
US20060002638A1 (en) * | 2004-07-02 | 2006-01-05 | Kura Laboratries Corporation | Fixed shaft type fluid dynamic bearing motor |
WO2006028119A1 (ja) * | 2004-09-08 | 2006-03-16 | Ntn Corporation | 流体軸受装置用軸部材およびその製造方法 |
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 |
JP4567476B2 (ja) * | 2005-01-28 | 2010-10-20 | アルファナテクノロジー株式会社 | モータ |
US7866047B2 (en) * | 2005-03-18 | 2011-01-11 | Nidec Corporation | Sleeve-unit manufacturing method |
JP4499615B2 (ja) | 2005-05-30 | 2010-07-07 | アルファナテクノロジー株式会社 | スピンドルモータ |
JP4559336B2 (ja) * | 2005-10-11 | 2010-10-06 | Ntn株式会社 | 流体軸受装置およびその製造方法 |
JP2007170506A (ja) * | 2005-12-21 | 2007-07-05 | Nippon Densan Corp | 軸受機構、モータおよび記録ディスク駆動装置 |
DE102006013537B4 (de) * | 2006-03-24 | 2009-06-10 | Minebea Co., Ltd. | Spindelmotor mit fluiddynamischem Lagersystem |
US7814659B2 (en) * | 2006-05-12 | 2010-10-19 | Nidec Corporation | Method of manufacturing fluid dynamic bearing assembly |
JP4948908B2 (ja) * | 2006-06-08 | 2012-06-06 | Ntn株式会社 | 流体軸受装置 |
JP4642708B2 (ja) * | 2006-06-30 | 2011-03-02 | Ntn株式会社 | 動圧軸受装置 |
JP4811186B2 (ja) * | 2006-08-07 | 2011-11-09 | 日本電産株式会社 | 動圧軸受装置 |
US7633200B2 (en) * | 2006-08-08 | 2009-12-15 | Samsung Electro-Mechanics Co., Ltd. | Motor |
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 |
JP2008082414A (ja) * | 2006-09-27 | 2008-04-10 | Nippon Densan Corp | 流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器 |
DE102007008860B4 (de) * | 2007-02-23 | 2013-10-31 | Minebea Co., Ltd. | Fluiddynamisches Lager mit Druck erzeugenden Oberflächenstrukturen |
US7758246B2 (en) * | 2007-06-25 | 2010-07-20 | Seagate Technology, Llc | Air purging for a fluid dynamic bearing |
JP2009024771A (ja) * | 2007-07-19 | 2009-02-05 | Nippon Densan Corp | 軸受ユニット、およびこの軸受ユニットを搭載したモータ並びにディスク駆動装置 |
DE102007059464B4 (de) * | 2007-12-11 | 2015-08-27 | Minebea Co., Ltd. | Spindelmotor mit fluiddynamischem Lagersystem |
US7980764B2 (en) * | 2008-06-27 | 2011-07-19 | Seagate Technology Llc | Through-shaft fluid recirculation for a spindle motor |
US8591113B2 (en) * | 2008-07-08 | 2013-11-26 | Ntn Corporation | Fluid dynamic bearing device |
JP2010078100A (ja) * | 2008-09-26 | 2010-04-08 | Panasonic Corp | 流体軸受装置およびこれを備えたスピンドルモータ、情報装置 |
CN101795042B (zh) * | 2009-02-04 | 2012-07-18 | 佛山市建准电子有限公司 | 马达 |
DE102009061868B3 (de) | 2009-02-07 | 2022-12-15 | Minebea Mitsumi Inc. | Fluiddynamisches Lager für einen Spindelmotor |
DE102009008008B4 (de) | 2009-02-07 | 2021-10-21 | Minebea Mitsumi Inc. | Fluiddynamisches Lager für einen Spindelmotor |
DE102009017700A1 (de) * | 2009-04-15 | 2010-10-21 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem und Spindelmotor mit einem solchen Lagersystem |
DE102009022536A1 (de) * | 2009-05-25 | 2010-12-02 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
DE102009042521A1 (de) * | 2009-09-22 | 2011-03-24 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem und Spindelmotor mit einem solchen Lagersystem |
KR101101643B1 (ko) * | 2010-04-15 | 2012-01-02 | 삼성전기주식회사 | 유체 동압 베어링 어셈블리, 유체 동압 베어링 어셈블리를 구비하는 모터 및 이 모터를 탑재하는 기록 디스크 구동장치 |
KR101101681B1 (ko) | 2010-06-15 | 2011-12-30 | 삼성전기주식회사 | 모터 및 기록 디스크 구동장치 |
JP2012087861A (ja) * | 2010-10-19 | 2012-05-10 | Nippon Densan Corp | 流体動圧軸受機構、スピンドルモータ、およびディスク駆動装置 |
US8858084B2 (en) * | 2011-01-17 | 2014-10-14 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | Rotating device and component for fluid dynamic bearing unit thereof |
US9470261B2 (en) * | 2011-05-11 | 2016-10-18 | Seagate Techonology Llc | Adjustable gap for a fluid dynamic bearing |
KR101444557B1 (ko) | 2012-12-27 | 2014-09-25 | 삼성전기주식회사 | 스핀들 모터 |
US9790990B2 (en) * | 2013-06-17 | 2017-10-17 | Seagate Technology Llc | Bearing gap determined depth and width |
JP6422755B2 (ja) * | 2013-12-11 | 2018-11-14 | Ntn株式会社 | 流体動圧軸受装置およびこれを備えるモータ |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4254961A (en) * | 1979-04-30 | 1981-03-10 | Litton Systems, Inc. | Seal for fluid bearings |
CN1060738A (zh) * | 1990-10-19 | 1992-04-29 | 株式会社东芝 | 旋转阳极型x射线管 |
US6250807B1 (en) * | 1998-09-10 | 2001-06-26 | Ntn Corporation | Hydrodynamic type bearing and hydrodynamic type bearing unit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6512869A (zh) * | 1965-10-05 | 1967-04-06 | ||
US6361214B1 (en) * | 1999-08-02 | 2002-03-26 | Nidec Corporation | Hydrodynamic-pressure bearing device and motor provided with the hydrodynamic-pressure bearing device |
US6513979B2 (en) * | 2000-08-22 | 2003-02-04 | Ntn Corporation | Hydrodynamic oil-impregnated sintered bearing unit |
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 |
-
2002
- 2002-06-11 JP JP2002170619A patent/JP4338359B2/ja not_active Expired - Lifetime
-
2003
- 2003-06-05 US US10/455,735 patent/US6939047B2/en not_active Expired - Lifetime
- 2003-06-11 CN CNB031425860A patent/CN100337046C/zh not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4254961A (en) * | 1979-04-30 | 1981-03-10 | Litton Systems, Inc. | Seal for fluid bearings |
CN1060738A (zh) * | 1990-10-19 | 1992-04-29 | 株式会社东芝 | 旋转阳极型x射线管 |
US6250807B1 (en) * | 1998-09-10 | 2001-06-26 | Ntn Corporation | Hydrodynamic type bearing and hydrodynamic type bearing unit |
Also Published As
Publication number | Publication date |
---|---|
US6939047B2 (en) | 2005-09-06 |
JP4338359B2 (ja) | 2009-10-07 |
US20030231813A1 (en) | 2003-12-18 |
CN1482373A (zh) | 2004-03-17 |
JP2004011897A (ja) | 2004-01-15 |
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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 | ||
C56 | Change in the name or address of the patentee |
Owner name: NIDEC SANKYO CORP. Free format text: FORMER NAME OR ADDRESS: SANKYO SEIKI MFG. SEISAKUSHO K.K. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Japan, Suwa, Nagano Patentee after: NIDEC SANKYO Corp. Address before: Japan, Suwa, Nagano Patentee before: Kabushiki Kaisha SANKYO SEIKI SEISAKUSHO |
|
ASS | Succession or assignment of patent right |
Owner name: NIDEC CORP. Free format text: FORMER OWNER: NIDEC SANKYO CORP. Effective date: 20080912 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080912 Address after: Kyoto Japan Patentee after: NIDEC Corp. Address before: Japan, Suwa, Nagano Patentee before: NIDEC SANKYO Corp. |
|
CX01 | Expiry of patent term |
Granted publication date: 20070912 |
|
CX01 | Expiry of patent term |