KR910010080A - 동압형 유체베어링장치 - Google Patents

동압형 유체베어링장치 Download PDF

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Publication number
KR910010080A
KR910010080A KR1019900018172A KR900018172A KR910010080A KR 910010080 A KR910010080 A KR 910010080A KR 1019900018172 A KR1019900018172 A KR 1019900018172A KR 900018172 A KR900018172 A KR 900018172A KR 910010080 A KR910010080 A KR 910010080A
Authority
KR
South Korea
Prior art keywords
shaft
dynamic pressure
sleeve
pressure generating
bearing
Prior art date
Application number
KR1019900018172A
Other languages
English (en)
Other versions
KR930010408B1 (ko
Inventor
타까후미 아사다
마사또 모리모또
타카시 소노다
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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
Priority claimed from JP1293553A external-priority patent/JPH07109215B2/ja
Priority claimed from JP1300438A external-priority patent/JP2538080B2/ja
Application filed by 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR910010080A publication Critical patent/KR910010080A/ko
Application granted granted Critical
Publication of KR930010408B1 publication Critical patent/KR930010408B1/ko

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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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • 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
    • 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
    • F16C17/10—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

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)

Abstract

내용 없음.

Description

동압형 유체베어링장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1실시예에 있어서의 동압형 유체베어링장치의 단면도.
제2도는 본 발명의 제2실시예에 있어서의 동압형 유체베어링장치의 단면도.
제3도는 동윤활제 유지의 해설도.

Claims (4)

  1. 슬리이브와 그 중심에 축을 가지고, 상기 축의 일단부는 상기 슬리이브에 장착된 드러스트받침에 당접하고, 상기 슬리이브 안쪽둘레 또는 상기 축의 바깥둘레에는 동압발생홈을 가지고, 상기 동압발생홈은 깊이가 4μm 이상이며, 회전속도에 대한 홈의 접촉각이 17°이하의 예각이며, 또 상기 슬리이브, 드러스트받침, 축으로 이루어진 베어링 간격은 윤활제로 채워져 밀폐되어 있는 것을 특징으로 하는 동압형 유체베어링장치.
  2. 제1항에 있어서, 드러스트받침은 탄화티탄이며, 베어링간격에는 윤활제로서 퍼어플루오로 폴리에테르가 충만되고, 축의 꼭대기부와 바닥부는 동일반경의 구면을 가진 것을 특징으로 하는 동압형 유체베어링장치.
  3. 축과 이 축에 대해서 상대적으로 회전자재하게 끼워 맞추어진 슬리이브를 가지고, 상기 축의 바깥둘레 또는 상기 슬리이브의 안쪽둘레의 어느 한쪽에는 적어도 2조의 동압발생홈을 가지고, 상기 축과 상기 슬리이브의 사이에 오일 또는 그리이스의 윤활제가 유지되고, 상기 2조의 동압발생홈의 사이에 밀봉된 공간을 가지고, 상기 동압발생홈은 깊이가 4μm 이상이며, 각도는 상기 축 또는 슬리이브의 회전방향에 대해서 20°미만의 예각인 것을 특징으로 하는 동압형 유체베어링장치.
  4. 제3항에 있어서, 동압발생홈은 그 바깥쪽부분의 길이가 밀봉된 공간쪽의 길이보다 긴 비대칭 패턴인 것을 특징으로 하는 동압형 유체베어링장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900018172A 1989-11-10 1990-11-10 동압형 유체베어링장치 KR930010408B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1-293553 1989-11-10
JP1293553A JPH07109215B2 (ja) 1989-11-10 1989-11-10 流体軸受け装置
JP1300438A JP2538080B2 (ja) 1989-11-17 1989-11-17 動圧型流体軸受装置
JP1-300438 1989-11-17

Publications (2)

Publication Number Publication Date
KR910010080A true KR910010080A (ko) 1991-06-28
KR930010408B1 KR930010408B1 (ko) 1993-10-23

Family

ID=26559468

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900018172A KR930010408B1 (ko) 1989-11-10 1990-11-10 동압형 유체베어링장치

Country Status (2)

Country Link
US (1) US5141338A (ko)
KR (1) KR930010408B1 (ko)

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JP3099033B2 (ja) * 1992-01-30 2000-10-16 株式会社荏原製作所 軸受装置
US5328271A (en) * 1992-05-06 1994-07-12 Maxtor Corporation Hydrodynamic spindle bearing for ultra-slim disk storage unit
JPH0651224A (ja) * 1992-07-31 1994-02-25 Canon Inc 走査光学装置
NL9320055A (nl) * 1993-02-09 1995-12-01 Ebara Corp Legerinrichting.
FR2702257B1 (fr) * 1993-03-04 1995-06-02 Ebara Corp Dispositif à paliers radial et de butée.
JP3206191B2 (ja) * 1993-03-15 2001-09-04 松下電器産業株式会社 スピンドルモータおよびその組立方法
JP2795305B2 (ja) * 1994-03-18 1998-09-10 大豊工業株式会社 すべり軸受
US5558443A (en) * 1994-07-22 1996-09-24 Quantum Corporation Shaft seal for hydrodynamic bearing unit
US5524986A (en) * 1994-08-02 1996-06-11 Seagate Technology, Inc. Fluid retention principles for hydrodynamic bearings
JP3646269B2 (ja) * 1994-10-14 2005-05-11 コニカミノルタホールディングス株式会社 動圧軸受
US5793561A (en) * 1994-10-14 1998-08-11 Canon Kabushiki Kaisha Rotary drum assembly having dynamic-pressure generating mechanism between rotary shaft and bearing
US5956204A (en) * 1995-02-13 1999-09-21 Seagate Technology, Inc. Magnetic disc drive having magnetic particle trap for hydrodynamic bearing
US5969903A (en) * 1995-02-13 1999-10-19 Seagate Technology, Inc. Magnetic particle trap for hydrodynamic bearing
JPH099568A (ja) * 1995-06-23 1997-01-10 Matsushita Electric Ind Co Ltd ディスク駆動装置
JPH0944985A (ja) * 1995-07-28 1997-02-14 Matsushita Electric Ind Co Ltd 動圧軸受装置を使用したディスク駆動装置
FR2748074B1 (fr) * 1996-04-29 1998-05-22 Valeo Equip Electr Moteur Palier d'arbre de moteur dans un demarreur de vehicule automobile et demarreur equipe d'un tel palier
JPH10131955A (ja) * 1996-10-29 1998-05-22 Samsung Electron Co Ltd ジャーナルベアリング装置
KR100196929B1 (ko) * 1996-11-25 1999-06-15 윤종용 간극 편차 보정 유체베어링 장치
KR100196928B1 (ko) * 1996-11-25 1999-06-15 윤종용 유체 베어링 장치
JP3362618B2 (ja) * 1996-12-24 2003-01-07 松下電器産業株式会社 動圧軸受
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US6336608B1 (en) 2000-02-29 2002-01-08 James Robert Cope Flexible web roller guide assembly with an integral centrifugal pump capability to provide a hydrostatic air bearing function to the roller guides outside supporting surface
JP2002017063A (ja) * 2000-06-29 2002-01-18 Minebea Co Ltd モータ及びその製造方法
JP2002213436A (ja) * 2001-01-19 2002-07-31 Olympus Optical Co Ltd モータ用流体軸受け装置
JP2003097543A (ja) * 2001-09-25 2003-04-03 Koyo Seiko Co Ltd 動圧軸受及びその製造方法
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KR100795020B1 (ko) * 2006-08-08 2008-01-15 삼성전기주식회사 모터 및 모터 제조방법
CN101225854B (zh) * 2007-01-17 2010-08-25 富准精密工业(深圳)有限公司 动压轴承的制造方法
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Also Published As

Publication number Publication date
US5141338A (en) 1992-08-25
KR930010408B1 (ko) 1993-10-23

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