CN1189676C - 动压轴承装置 - Google Patents
动压轴承装置 Download PDFInfo
- Publication number
- CN1189676C CN1189676C CN01812550.6A CN01812550A CN1189676C CN 1189676 C CN1189676 C CN 1189676C CN 01812550 A CN01812550 A CN 01812550A CN 1189676 C CN1189676 C CN 1189676C
- Authority
- CN
- China
- Prior art keywords
- dynamic pressure
- bearing
- lubricating fluid
- axial
- hydrodynamic bearing
- 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 130
- 230000001050 lubricating effect Effects 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 229910000889 permalloy Inorganic materials 0.000 claims description 3
- 238000007667 floating Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 26
- 230000000694 effects Effects 0.000 description 11
- 238000005086 pumping Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 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
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
-
- 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
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1446—Reducing contamination, e.g. by dust, debris
- G11B33/1473—Reducing contamination, e.g. by dust, debris of/from bearings
-
- 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)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000207952 | 2000-07-10 | ||
JP207952/2000 | 2000-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1452700A CN1452700A (zh) | 2003-10-29 |
CN1189676C true CN1189676C (zh) | 2005-02-16 |
Family
ID=18704628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN01812550.6A Expired - Lifetime CN1189676C (zh) | 2000-07-10 | 2001-07-10 | 动压轴承装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6890104B2 (zh) |
CN (1) | CN1189676C (zh) |
WO (1) | WO2002004825A1 (zh) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7249363B2 (en) * | 2001-07-17 | 2007-07-24 | Matsushita Electric Industrial Co., Ltd. | Spindle motor, information recording and reproducing apparatus having a spindle motor, and manufacturing method of spindle motor |
US7048444B2 (en) * | 2001-11-13 | 2006-05-23 | Ntn Corporation | Fluid lubricated bearing device |
JP4216509B2 (ja) | 2002-02-20 | 2009-01-28 | Ntn株式会社 | 動圧軸受装置の製造方法 |
JP4159332B2 (ja) * | 2002-04-05 | 2008-10-01 | Ntn株式会社 | 動圧軸受装置 |
JP3921517B2 (ja) * | 2002-05-27 | 2007-05-30 | 日本電産株式会社 | オイル動圧軸受装置、およびそれを用いた軸回転型モータ |
WO2004001741A1 (en) * | 2002-06-21 | 2003-12-31 | Seagate Technology Llc | Fluid dynamic bearing asymmetry pressure feedback |
JP2004084897A (ja) * | 2002-08-29 | 2004-03-18 | Seiko Instruments Inc | 動圧軸受、回転体装置、及びモータ |
JP4127036B2 (ja) * | 2002-12-03 | 2008-07-30 | 松下電器産業株式会社 | 流体軸受装置及びディスク回転装置 |
JP4127040B2 (ja) * | 2002-12-06 | 2008-07-30 | 松下電器産業株式会社 | 流体軸受装置及びディスク回転装置 |
JP2004183865A (ja) * | 2002-12-06 | 2004-07-02 | Matsushita Electric Ind Co Ltd | 流体軸受装置及びディスク回転装置 |
JP2004204826A (ja) * | 2002-12-26 | 2004-07-22 | Sony Corp | 動圧軸受型ポンプ |
JP4078983B2 (ja) * | 2003-01-10 | 2008-04-23 | ソニー株式会社 | 軸受けユニットおよび軸受けユニットを有する回転駆動装置 |
US6948854B2 (en) * | 2003-04-15 | 2005-09-27 | Seagate Technology Llc | Fluid dynamic bearing motor optimized for radial stiffness and power consumption |
US7959357B2 (en) * | 2003-05-07 | 2011-06-14 | Seagate Technology Llc | Fluid dynamic bearing spindle motor |
JP2005036974A (ja) * | 2003-07-02 | 2005-02-10 | Nippon Densan Corp | 流体動圧軸受の製造方法 |
US7052254B2 (en) * | 2003-07-29 | 2006-05-30 | Nien-Lun Li | Oil lubricant retaining bearing structure for a fan |
JP2005155689A (ja) * | 2003-11-21 | 2005-06-16 | Matsushita Electric Ind Co Ltd | 流体軸受装置 |
JP2005226780A (ja) * | 2004-02-13 | 2005-08-25 | Sony Corp | 軸受ユニット、軸受ユニットを有するモータ及び電子機器 |
CN100406193C (zh) * | 2004-06-28 | 2008-07-30 | 日本电产株式会社 | 制造止推板和制造用于动压轴承的轴的方法 |
JP2006020385A (ja) * | 2004-06-30 | 2006-01-19 | Matsushita Electric Ind Co Ltd | ハードディスク駆動装置と流体軸受スピンドルモータ及びその組立方法 |
CN1989352B (zh) * | 2004-09-08 | 2011-08-17 | Ntn株式会社 | 用于液体润滑轴承设备的轴构件及其制造方法 |
JP2007192369A (ja) * | 2006-01-20 | 2007-08-02 | Jtekt Corp | 動圧軸受の性能判定方法および動圧軸受 |
US7814659B2 (en) * | 2006-05-12 | 2010-10-19 | Nidec Corporation | Method of manufacturing fluid dynamic bearing assembly |
WO2007142062A1 (ja) * | 2006-06-07 | 2007-12-13 | Ntn Corporation | 流体軸受装置、およびその製造方法 |
US20080107366A1 (en) * | 2006-11-06 | 2008-05-08 | Zippy Technology Corp. | Air fan bearing structure |
DE102007008860B4 (de) | 2007-02-23 | 2013-10-31 | Minebea Co., Ltd. | Fluiddynamisches Lager mit Druck erzeugenden Oberflächenstrukturen |
CN101280805B (zh) * | 2007-04-06 | 2010-04-14 | 富准精密工业(深圳)有限公司 | 转动体 |
JP2008281104A (ja) * | 2007-05-10 | 2008-11-20 | Nippon Densan Corp | スリーブ、モータ、記録ディスク駆動装置およびスリーブの製造方法 |
US20080307447A1 (en) * | 2007-06-06 | 2008-12-11 | Nidec Corporation | Production method of spindle motor and spindle motor |
DE102009019936A1 (de) * | 2008-11-18 | 2010-05-20 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
KR101101681B1 (ko) * | 2010-06-15 | 2011-12-30 | 삼성전기주식회사 | 모터 및 기록 디스크 구동장치 |
KR20130004747A (ko) * | 2011-07-04 | 2013-01-14 | 삼성전기주식회사 | 스핀들 모터 |
KR20130073687A (ko) * | 2011-12-23 | 2013-07-03 | 삼성전기주식회사 | 스핀들 모터 |
US8510930B1 (en) * | 2012-02-13 | 2013-08-20 | Fang-Fu Chang | Manufacturing method of shield type motor |
US9341214B2 (en) * | 2013-07-24 | 2016-05-17 | Nidec Corporation | Sleeve, fluid dynamic pressure bearing including the sleeve, spindle motor including the fluid dynamic pressure bearing and electronic equipment including the spindle motor |
JP6461483B2 (ja) * | 2014-04-04 | 2019-01-30 | Ntn株式会社 | 焼結軸受及びこれを備えた流体動圧軸受装置、並びに焼結軸受の製造方法 |
FR3022587B1 (fr) * | 2014-06-23 | 2019-03-22 | Safran Aircraft Engines | Dispositif et procede de lubrification d’un palier a roulement de turbomachine |
DE102016015510A1 (de) | 2016-12-28 | 2018-06-28 | Minebea Co., Ltd. | Fluiddynamisches Lager |
TWI644025B (zh) * | 2017-04-12 | 2018-12-11 | 東培工業股份有限公司 | 風扇裝置及其軸承組件 |
JP2020165471A (ja) * | 2019-03-29 | 2020-10-08 | 日本電産株式会社 | 気体動圧軸受、モータおよび送風装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5527550A (en) * | 1978-08-16 | 1980-02-27 | Matsushita Electric Ind Co Ltd | Bearing device |
US4332428A (en) * | 1979-01-16 | 1982-06-01 | Matsushita Electric Industrial Co., Ltd. | Rotary mechanism with axial bearings |
JPS6027100B2 (ja) * | 1980-11-25 | 1985-06-27 | 松下電器産業株式会社 | 回転ヘッドアセンブリ |
JPH06173943A (ja) * | 1992-11-30 | 1994-06-21 | Fuji Electric Co Ltd | 軸受装置 |
JPH0731094A (ja) * | 1993-07-12 | 1995-01-31 | Matsushita Electric Ind Co Ltd | 電動機 |
US5427456A (en) * | 1994-04-12 | 1995-06-27 | Synektron Corporation | Fluid bearing with asymmetrical groove pattern |
US5667309A (en) * | 1994-11-15 | 1997-09-16 | Sankyo Seiki Mfg. Co., Ltd. | Bearing seal system |
JPH08205459A (ja) * | 1995-01-26 | 1996-08-09 | Toshiba Corp | 動圧軸受形モータ及びポリゴンミラー駆動用スキャナモータ |
US5540504A (en) * | 1995-09-07 | 1996-07-30 | Quantum Corporation | Shock resistant bearing |
US5798589A (en) * | 1995-09-13 | 1998-08-25 | Zexel Corporation | Brushless motor having lubrication system for upper and lower bearings |
WO1997023735A1 (en) * | 1995-12-22 | 1997-07-03 | Philips Electronics N.V. | Dynamic groove bearing with v-shaped oil barrier groove |
JP3558768B2 (ja) * | 1995-12-26 | 2004-08-25 | 日本電産株式会社 | 動圧流体軸受を備えたモータ |
US5806987A (en) * | 1996-02-07 | 1998-09-15 | Sankyo Seiki Mfg. Co., Ltd. | Hydrodynamic bearing apparatus |
JPH10184691A (ja) | 1996-12-24 | 1998-07-14 | Sankyo Seiki Mfg Co Ltd | 軸受装置 |
JP3988296B2 (ja) * | 1998-12-24 | 2007-10-10 | トヨタ自動車株式会社 | 動力出力装置、およびそれを搭載したハイブリッド車両並びに電動発電機制御方法 |
JP2000320546A (ja) * | 1999-05-14 | 2000-11-24 | Matsushita Electric Ind Co Ltd | 軸受装置及びその軸受装置を備えたモータ |
-
2001
- 2001-07-10 CN CN01812550.6A patent/CN1189676C/zh not_active Expired - Lifetime
- 2001-07-10 US US10/332,005 patent/US6890104B2/en not_active Expired - Lifetime
- 2001-07-10 WO PCT/JP2001/005979 patent/WO2002004825A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US6890104B2 (en) | 2005-05-10 |
US20030185473A1 (en) | 2003-10-02 |
CN1452700A (zh) | 2003-10-29 |
WO2002004825A1 (fr) | 2002-01-17 |
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Legal Events
Date | Code | Title | Description |
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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 | ||
ASS | Succession or assignment of patent right |
Owner name: NIDEC CORP. Free format text: FORMER OWNER: NIDEC SANKYO CORP. Effective date: 20081024 |
|
C41 | Transfer of patent application or patent right or utility model | ||
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. |
|
CP03 | Change of name, title or address |
Address after: Japan, Suwa, Nagano Patentee after: NIDEC SANKYO Corp. Address before: Japan, Suwa, Nagano Patentee before: Kabushiki Kaisha SANKYO SEIKI SEISAKUSHO |
|
TR01 | Transfer of patent right |
Effective date of registration: 20081024 Address after: Kyoto Japan Patentee after: NIDEC Corp. Address before: Japan, Suwa, Nagano Patentee before: NIDEC SANKYO Corp. |
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CX01 | Expiry of patent term |
Granted publication date: 20050216 |
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CX01 | Expiry of patent term |