CN104641131B - 流体动压轴承装置以及具备该流体动压轴承装置的电动机 - Google Patents

流体动压轴承装置以及具备该流体动压轴承装置的电动机 Download PDF

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Publication number
CN104641131B
CN104641131B CN201380048035.6A CN201380048035A CN104641131B CN 104641131 B CN104641131 B CN 104641131B CN 201380048035 A CN201380048035 A CN 201380048035A CN 104641131 B CN104641131 B CN 104641131B
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CN
China
Prior art keywords
bearing
gap
radial
dynamic pressure
lubricating oil
Prior art date
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CN201380048035.6A
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English (en)
Chinese (zh)
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CN104641131A (zh
Inventor
小松原慎治
栗村哲弥
山本康裕
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NTN Corp
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NTN Corp
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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
    • 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
    • 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
    • F16C33/104—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing in a porous body, e.g. oil impregnated sintered sleeve
    • 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
    • F16C43/00—Assembling bearings
    • F16C43/02—Assembling 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/46—Gap sizes or clearances
    • 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)
  • Power Engineering (AREA)
CN201380048035.6A 2012-09-18 2013-08-19 流体动压轴承装置以及具备该流体动压轴承装置的电动机 Active CN104641131B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012-204096 2012-09-18
JP2012204096A JP6189589B2 (ja) 2012-09-18 2012-09-18 流体動圧軸受装置及びこれを備えるモータ
PCT/JP2013/072048 WO2014045772A1 (ja) 2012-09-18 2013-08-19 流体動圧軸受装置及びこれを備えるモータ

Publications (2)

Publication Number Publication Date
CN104641131A CN104641131A (zh) 2015-05-20
CN104641131B true CN104641131B (zh) 2017-04-19

Family

ID=50341096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380048035.6A Active CN104641131B (zh) 2012-09-18 2013-08-19 流体动压轴承装置以及具备该流体动压轴承装置的电动机

Country Status (7)

Country Link
US (1) US9476449B2 (enExample)
EP (1) EP2899417B1 (enExample)
JP (1) JP6189589B2 (enExample)
KR (1) KR102068517B1 (enExample)
CN (1) CN104641131B (enExample)
IN (1) IN2015DN01676A (enExample)
WO (1) WO2014045772A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI684711B (zh) 2018-08-03 2020-02-11 東培工業股份有限公司 動壓軸承逃氣結構

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017166575A (ja) * 2016-03-16 2017-09-21 Ntn株式会社 動圧軸受及びその製造方法
US11473626B2 (en) 2016-05-16 2022-10-18 Roller Bearing Company Of America, Inc. Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation
US10718375B2 (en) * 2016-05-16 2020-07-21 Roller Bearing Company Of America, Inc. Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation
WO2018012186A1 (ja) * 2016-07-14 2018-01-18 Ntn株式会社 流体動圧軸受装置及びこれを備えるモータ
JP6877185B2 (ja) * 2016-07-14 2021-05-26 Ntn株式会社 流体動圧軸受装置及びこれを備えるモータ
JP7023754B2 (ja) 2017-12-08 2022-02-22 Ntn株式会社 流体動圧軸受装置
JP2019143688A (ja) * 2018-02-19 2019-08-29 Ntn株式会社 流体動圧軸受装置及びこれを備えたモータ
JP7387487B2 (ja) * 2020-02-21 2023-11-28 ニデックコンポーネンツ株式会社 空気動圧軸受モータ
US20250361908A1 (en) * 2022-06-14 2025-11-27 Ntn Corporation Fluid dynamic pressure bearing lubricant oil composition, fluid dynamic pressure bearing, and fluid dynamic pressure bearing apparatus

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Publication number Priority date Publication date Assignee Title
JPH109250A (ja) * 1996-06-20 1998-01-13 Sankyo Seiki Mfg Co Ltd 動圧流体軸受装置
JPH11201142A (ja) * 1998-01-12 1999-07-27 Nippon Seiko Kk 動圧軸受
JP2002106549A (ja) 2000-10-04 2002-04-10 Canon Inc 動圧軸受装置、回転装置および偏向走査装置
JP4481475B2 (ja) * 2000-11-02 2010-06-16 東北リコー株式会社 動圧型軸受ユニット
JP3971982B2 (ja) * 2001-11-13 2007-09-05 Ｎｔｎ株式会社 流体軸受装置
US7296931B2 (en) 2002-11-13 2007-11-20 Ntn Corporation Fluid lubricated bearing device
US7048444B2 (en) 2001-11-13 2006-05-23 Ntn Corporation Fluid lubricated bearing device
CN101255892B (zh) * 2001-11-13 2011-11-16 Ntn株式会社 流体轴承装置
US20070230843A1 (en) 2006-01-06 2007-10-04 Tetsuya Kurimura Fluid lubricated bearing device
KR100968163B1 (ko) * 2002-04-23 2010-07-06 엔티엔 가부시키가이샤 유체 베어링 장치
JP2004138215A (ja) 2002-10-21 2004-05-13 Hitachi Powdered Metals Co Ltd 焼結含油軸受
JP4699210B2 (ja) * 2003-03-31 2011-06-08 Ｎｔｎ株式会社 流体軸受装置
JP2005337377A (ja) * 2004-05-27 2005-12-08 Matsushita Electric Ind Co Ltd 動圧流体軸受装置及びハードディスク駆動装置
JP2007120653A (ja) * 2005-10-28 2007-05-17 Matsushita Electric Ind Co Ltd 流体軸受装置、ならびにそれを用いたスピンドルモータ及び情報装置
KR101439924B1 (ko) * 2007-07-31 2014-09-12 엔티엔 가부시키가이샤 유체 동압 베어링 장치 및 그 조립 방법
JP5674184B2 (ja) * 2009-08-04 2015-02-25 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
US20120230618A1 (en) 2009-12-24 2012-09-13 Ntn Corporation Fluid dynamic bearing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI684711B (zh) 2018-08-03 2020-02-11 東培工業股份有限公司 動壓軸承逃氣結構

Also Published As

Publication number Publication date
CN104641131A (zh) 2015-05-20
JP2014059014A (ja) 2014-04-03
IN2015DN01676A (enExample) 2015-07-03
KR102068517B1 (ko) 2020-01-21
WO2014045772A1 (ja) 2014-03-27
EP2899417B1 (en) 2019-11-13
EP2899417A4 (en) 2016-05-18
EP2899417A1 (en) 2015-07-29
US20150233417A1 (en) 2015-08-20
KR20150053922A (ko) 2015-05-19
JP6189589B2 (ja) 2017-08-30
US9476449B2 (en) 2016-10-25

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