WO2008096465A1 - 流体軸受装置 - Google Patents

流体軸受装置 Download PDF

Info

Publication number
WO2008096465A1
WO2008096465A1 PCT/JP2007/065634 JP2007065634W WO2008096465A1 WO 2008096465 A1 WO2008096465 A1 WO 2008096465A1 JP 2007065634 W JP2007065634 W JP 2007065634W WO 2008096465 A1 WO2008096465 A1 WO 2008096465A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing unit
fluid bearing
shaft member
oil repellent
flange portion
Prior art date
Application number
PCT/JP2007/065634
Other languages
English (en)
French (fr)
Inventor
Masaharu Hori
Original Assignee
Ntn Corporation
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 Ntn Corporation filed Critical Ntn Corporation
Priority to CN2007800509096A priority Critical patent/CN101600892B/zh
Priority to US12/522,566 priority patent/US8210748B2/en
Priority to KR1020097013887A priority patent/KR20090109534A/ko
Publication of WO2008096465A1 publication Critical patent/WO2008096465A1/ja

Links

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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and 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
    • 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
    • F16C33/106—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

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)
  • Sealing Of Bearings (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

　撥油膜の剥離を確実に防止可能とする。 　流体軸受装置１は、軸部材２と、軸部材２に固定されたシール部としての第１および第２フランジ部９，１０を備える。第１および第２フランジ部９，１０の外周側には、それぞれ、第１シール空間Ｓ１および第２シール空間Ｓ２が形成されている。第１フランジ部９および第２フランジ部１０の外気に接する端面には、撥油膜１１が、組立時の加圧力を受ける受圧面１２と分離して設けられている。
PCT/JP2007/065634 2007-02-05 2007-08-09 流体軸受装置 WO2008096465A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800509096A CN101600892B (zh) 2007-02-05 2007-08-09 流体轴承装置
US12/522,566 US8210748B2 (en) 2007-02-05 2007-08-09 Fluid dynamic bearing device
KR1020097013887A KR20090109534A (ko) 2007-02-05 2007-08-09 유체 베어링 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-025567 2007-02-05
JP2007025567A JP2008190620A (ja) 2007-02-05 2007-02-05 流体軸受装置

Publications (1)

Publication Number Publication Date
WO2008096465A1 true WO2008096465A1 (ja) 2008-08-14

Family

ID=39681381

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/065634 WO2008096465A1 (ja) 2007-02-05 2007-08-09 流体軸受装置

Country Status (5)

Country Link
US (1) US8210748B2 (ja)
JP (1) JP2008190620A (ja)
KR (1) KR20090109534A (ja)
CN (1) CN101600892B (ja)
WO (1) WO2008096465A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130336604A1 (en) * 2011-03-09 2013-12-19 Ntn Corporation Fluid dynamic bearing device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9190880B2 (en) * 2010-12-27 2015-11-17 Nidec Corporation Spindle motor, and disk drive apparatus including the spindle motor
JP5838734B2 (ja) * 2010-12-27 2016-01-06 日本電産株式会社 スピンドルモータ、ディスク駆動装置およびスピンドルモータの製造方法
JP2012225386A (ja) * 2011-04-18 2012-11-15 Ntn Corp 流体動圧軸受装置
KR20120136008A (ko) * 2011-06-08 2012-12-18 삼성전기주식회사 유체 동압 베어링 어셈블리 및 이의 제조방법
KR101322357B1 (ko) * 2011-12-15 2013-10-28 주식회사 삼홍사 스핀들 모터
JP2014102970A (ja) * 2012-11-20 2014-06-05 Nitto Denko Corp 通気部材
FR2999670B1 (fr) * 2012-12-13 2014-11-28 Hydromecanique & Frottement Organe de guidage sous forme d'une bague metallique pour le montage avec frottement et avec capacite d''articulation et/ou de coulissement d'un axe.
EP2803874B1 (en) 2013-05-13 2019-08-14 Aktiebolaget SKF Landing bearing and magnetic bearing assembly
EP2803875B1 (en) * 2013-05-13 2019-03-13 Aktiebolaget SKF Landing bearing and magnetic bearing assembly
TWI509161B (zh) * 2014-03-24 2015-11-21 Tung Pei Ind Co Ltd 用於承載散熱風扇的動壓軸承結構及其組裝方法
JP6762611B2 (ja) * 2016-12-14 2020-09-30 東京パーツ工業株式会社 軸受装置及びブラシレスモータ
US10612589B2 (en) 2017-06-14 2020-04-07 Nickoloas Sotiropoulos Pneumatic bearing assembly for a linear guide rail

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002147440A (ja) * 2000-11-14 2002-05-22 Nsk Ltd 流体軸受装置
JP2004176815A (ja) * 2002-11-27 2004-06-24 Ntn Corp 流体軸受装置
JP2005180622A (ja) * 2003-12-22 2005-07-07 Matsushita Electric Ind Co Ltd 流体軸受装置および流体軸受装置の潤滑油充填方法
JP2006177387A (ja) * 2004-12-21 2006-07-06 Matsushita Electric Ind Co Ltd 動圧流体軸受用スリーブの製造方法および動圧流体軸受用スリーブ
JP2006292013A (ja) * 2005-04-07 2006-10-26 Ntn Corp 動圧軸受装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357163A (en) * 1992-05-08 1994-10-18 Matsushita Electric Industrial Co., Ltd. Motor with dynamic-pressure type bearing device
US5806987A (en) * 1996-02-07 1998-09-15 Sankyo Seiki Mfg. Co., Ltd. Hydrodynamic bearing apparatus
JP3462982B2 (ja) * 1998-03-16 2003-11-05 日本電産株式会社 動圧流体軸受装置及び電動機
JP3579258B2 (ja) * 1998-06-18 2004-10-20 日本電産株式会社 モータおよびその製造方法
JP3578948B2 (ja) * 1999-10-01 2004-10-20 日本電産株式会社 モータ
WO2002084132A1 (fr) * 2001-04-13 2002-10-24 Kabushiki Kaisha Sankyo Seiki Seisakusho Dispositif a palier a pression dynamique
JP3984462B2 (ja) * 2001-11-26 2007-10-03 日本電産株式会社 動圧軸受装置
US6799891B2 (en) * 2002-02-22 2004-10-05 Matsushita Electric Industrial Co., Ltd. Motor device
US7296932B2 (en) * 2003-01-20 2007-11-20 Minebea Co. Ltd Fluid dynamic bearing having an acute-angled shaft recess
JP2005155689A (ja) * 2003-11-21 2005-06-16 Matsushita Electric Ind Co Ltd 流体軸受装置
US8356938B2 (en) 2005-04-07 2013-01-22 Ntn Corporation Fluid dynamic bearing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002147440A (ja) * 2000-11-14 2002-05-22 Nsk Ltd 流体軸受装置
JP2004176815A (ja) * 2002-11-27 2004-06-24 Ntn Corp 流体軸受装置
JP2005180622A (ja) * 2003-12-22 2005-07-07 Matsushita Electric Ind Co Ltd 流体軸受装置および流体軸受装置の潤滑油充填方法
JP2006177387A (ja) * 2004-12-21 2006-07-06 Matsushita Electric Ind Co Ltd 動圧流体軸受用スリーブの製造方法および動圧流体軸受用スリーブ
JP2006292013A (ja) * 2005-04-07 2006-10-26 Ntn Corp 動圧軸受装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130336604A1 (en) * 2011-03-09 2013-12-19 Ntn Corporation Fluid dynamic bearing device
US8926183B2 (en) * 2011-03-09 2015-01-06 Ntn Corporation Fluid dynamic bearing device

Also Published As

Publication number Publication date
JP2008190620A (ja) 2008-08-21
CN101600892B (zh) 2013-01-30
CN101600892A (zh) 2009-12-09
US8210748B2 (en) 2012-07-03
KR20090109534A (ko) 2009-10-20
US20100034494A1 (en) 2010-02-11

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