FR2635565B1 - Mecanisme a palier fluide du type a pression dynamique - Google Patents

Mecanisme a palier fluide du type a pression dynamique

Info

Publication number
FR2635565B1
FR2635565B1 FR8910923A FR8910923A FR2635565B1 FR 2635565 B1 FR2635565 B1 FR 2635565B1 FR 8910923 A FR8910923 A FR 8910923A FR 8910923 A FR8910923 A FR 8910923A FR 2635565 B1 FR2635565 B1 FR 2635565B1
Authority
FR
France
Prior art keywords
dynamic pressure
pressure type
bearing mechanism
type fluid
fluid 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 - Fee Related
Application number
FR8910923A
Other languages
English (en)
Other versions
FR2635565A1 (fr
Inventor
Katsuhiko Tanaka
Ikunori Sakatani
Takeyuki Yoshiba
Takanobu Sato
Kiyoshi Haginuma
Toshimi Takajou
Hiromi Sugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
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 JP20522088A external-priority patent/JPH0257716A/ja
Priority claimed from JP63209777A external-priority patent/JP2653119B2/ja
Priority claimed from JP63297054A external-priority patent/JP2850342B2/ja
Application filed by NSK Ltd filed Critical NSK Ltd
Publication of FR2635565A1 publication Critical patent/FR2635565A1/fr
Application granted granted Critical
Publication of FR2635565B1 publication Critical patent/FR2635565B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F16C33/02—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
    • 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

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)
FR8910923A 1988-08-18 1989-08-16 Mecanisme a palier fluide du type a pression dynamique Expired - Fee Related FR2635565B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20522088A JPH0257716A (ja) 1988-08-18 1988-08-18 動圧形流体軸受装置
JP63209777A JP2653119B2 (ja) 1988-08-24 1988-08-24 スキャナユニット
JP63297054A JP2850342B2 (ja) 1988-11-24 1988-11-24 軸受装置

Publications (2)

Publication Number Publication Date
FR2635565A1 FR2635565A1 (fr) 1990-02-23
FR2635565B1 true FR2635565B1 (fr) 1993-07-09

Family

ID=27328471

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8910923A Expired - Fee Related FR2635565B1 (fr) 1988-08-18 1989-08-16 Mecanisme a palier fluide du type a pression dynamique

Country Status (3)

Country Link
US (1) US4934836A (fr)
DE (1) DE3926852C2 (fr)
FR (1) FR2635565B1 (fr)

Families Citing this family (50)

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JPH01233413A (ja) * 1988-03-15 1989-09-19 Fuji Photo Film Co Ltd 光ビーム走査装置
JP2615998B2 (ja) * 1989-04-26 1997-06-04 日本精工株式会社 動圧形軸受及びスピンドルユニット
US5114245A (en) * 1989-07-17 1992-05-19 Nippon Seiko Kabushiki Kaisha Dynamic pressure bearing device
US5245234A (en) * 1990-12-28 1993-09-14 Nippon Densan Corporation Motor
US5357272A (en) * 1991-07-29 1994-10-18 Canon Kabushiki Kaisha Deflection scanner which is elastically fixed in its housing
US5310263A (en) * 1991-12-30 1994-05-10 Eastman Kodak Company Self-acting air bearing for high speed laser scanner
JP3099033B2 (ja) * 1992-01-30 2000-10-16 株式会社荏原製作所 軸受装置
JPH05272528A (ja) * 1992-03-26 1993-10-19 Ricoh Co Ltd ポリゴンスキャナおよびその製造方法
US5434695A (en) * 1992-04-21 1995-07-18 Hitachi Koki Co., Ltd. Dynamic pressure bearing and rotary polygon mirror device with the bearing
US5357163A (en) * 1992-05-08 1994-10-18 Matsushita Electric Industrial Co., Ltd. Motor with dynamic-pressure type bearing device
US5559382A (en) * 1992-10-01 1996-09-24 Nidec Corporation Spindle motor
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.
JPH07177720A (ja) * 1993-12-22 1995-07-14 Matsushita Electric Ind Co Ltd ブラシレスモータ
JP3020789B2 (ja) * 1993-12-27 2000-03-15 光洋精工株式会社 動圧軸受
JPH0833266A (ja) * 1994-07-15 1996-02-02 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
US5661588A (en) * 1994-09-02 1997-08-26 Kabushiki Kaisha Sankyo Seiki Seisakusho Rotary polygon mirror type light deflecting system
US5818507A (en) * 1994-10-28 1998-10-06 Xerox Corporation Method and apparatus for controlling the modulation of light beams in a rotating polygon type image forming apparatus
US5969903A (en) * 1995-02-13 1999-10-19 Seagate Technology, Inc. Magnetic particle trap for hydrodynamic bearing
US5956204A (en) * 1995-02-13 1999-09-21 Seagate Technology, Inc. Magnetic disc drive having magnetic particle trap for hydrodynamic bearing
JPH0954260A (ja) * 1995-08-18 1997-02-25 Hitachi Koki Co Ltd 回転多面鏡装置
US5713670A (en) * 1995-08-30 1998-02-03 International Business Machines Corporation Self pressurizing journal bearing assembly
US5610751A (en) * 1995-11-14 1997-03-11 Speedring Systems, Inc. Optical scanning device having a spherical exit window
US5927859A (en) * 1997-06-16 1999-07-27 Delta Electronics, Inc. Sleeve bearing structure
JP3472142B2 (ja) * 1997-06-18 2003-12-02 キヤノン株式会社 光偏向走査装置
JP3607482B2 (ja) * 1997-12-26 2005-01-05 株式会社三協精機製作所 回転多面鏡駆動装置
US6055126A (en) * 1998-07-06 2000-04-25 Seagate Technology, Inc. Disc drive having hydrodynamic labyrinth seal and magnet shield
JP2000320545A (ja) * 1999-05-07 2000-11-24 Sumitomo Electric Ind Ltd 動圧気体軸受
JP2002227841A (ja) * 2001-01-30 2002-08-14 Namiki Precision Jewel Co Ltd 小型扁平モータ用流体動圧軸受、小型扁平モータ、ファンモータ、空気強制供給型空気電池
JP2002339957A (ja) * 2001-05-16 2002-11-27 Sankyo Seiki Mfg Co Ltd 軸受装置
DE10239886B4 (de) * 2002-03-08 2006-07-13 Minebea Co., Ltd. Hydrodynamisches Lager für einen Spindelmotor
US7001073B2 (en) * 2002-03-08 2006-02-21 Minebea Co., Ltd. Hydrodynamic bearing for a spindle motor
DE10254926B4 (de) * 2002-03-08 2006-03-16 Minebea Co., Ltd. Hydrodynamisches Lager für einen Spindelmotor
DE10240634B4 (de) 2002-03-12 2007-07-19 Minebea Co., Ltd. Hydrodynamisches Lager für einen Spindelmotor
DE10254670A1 (de) * 2002-11-22 2004-06-24 Minebea Co., Ltd. Elektromotor für einen Pumpenantrieb
US7540664B2 (en) * 2003-01-21 2009-06-02 Seagate Technology Llc Grooves on both the moving and the stationary mating fluid dynamic bearing surfaces for performance enhancement
US7493695B2 (en) * 2003-04-18 2009-02-24 Seagate Technology Llc Method for designing a fluid dynamic bearing system
US7959357B2 (en) * 2003-05-07 2011-06-14 Seagate Technology Llc Fluid dynamic bearing spindle motor
JP2005003042A (ja) * 2003-06-10 2005-01-06 Ntn Corp 動圧軸受装置
JP2006194400A (ja) * 2005-01-17 2006-07-27 Matsushita Electric Ind Co Ltd スピンドルモータおよび回転装置
DE102005007297B4 (de) * 2005-02-17 2007-05-31 Minebea Co., Ltd. Fluiddynamisches Luftlagersystem zur Drehlagerung eines Motors
US8267587B2 (en) * 2005-05-24 2012-09-18 Ntn Corporation Housing for fluid lubrication bearing apparatuses
JP2007024146A (ja) * 2005-07-14 2007-02-01 Ntn Corp 動圧軸受装置
JP2007198479A (ja) * 2006-01-25 2007-08-09 Sony Corp 軸受ユニット及びこの軸受ユニットを用いたモータ
DE102006005604B4 (de) * 2006-02-06 2007-11-22 Minebea Co., Ltd. Fluiddynamisches Lagersystem
WO2007102312A1 (fr) * 2006-03-06 2007-09-13 Ntn Corporation Dispositif de palier hydraulique
US20080078560A1 (en) * 2006-10-02 2008-04-03 Kevin Hall Motor seal
JP2009086409A (ja) * 2007-10-01 2009-04-23 Panasonic Corp ポリゴンミラースキャナモータ
CN110000157A (zh) * 2019-04-23 2019-07-12 安徽捷迅光电技术有限公司 一种新式轴组件
DE102022127657A1 (de) 2022-10-20 2024-04-25 Minebea Mitsumi Inc. Spindelmotor mit bevorzugter Betriebslage und Lüfter oder Laserscanner mit einem solchen Spindelmotor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL149575B (nl) * 1966-12-07 1976-05-17 Philips Nv Legerbus voor een hydrodynamisch leger.
CH450825A (de) * 1966-12-23 1968-04-30 Bbc Brown Boveri & Cie Hydrostatisches Axiallager
GB1524662A (en) * 1977-03-24 1978-09-13 Univ Southampton Agnetic disc stores
NL8002279A (nl) * 1980-04-18 1981-11-16 Ihc Holland Nv Radiaal lager.
NL8201747A (nl) * 1981-04-27 1982-11-16 Nippon Seiko Kk Fluidum lager van het dynamische druktype.
JPS5834227A (ja) * 1981-08-26 1983-02-28 Nippon Seiko Kk 動圧形流体軸受
JPS5843421A (ja) * 1981-09-09 1983-03-14 Toshiba Corp 回転鏡光偏向器
US4487514A (en) * 1981-09-29 1984-12-11 Tokyo Shibaura Denki Kabushiki Kaisha Motor
DE3303499A1 (de) * 1982-02-05 1983-08-25 Nippon Seiko K.K., Tokyo Dynamische druckgaslagerung
US4523800A (en) * 1982-07-20 1985-06-18 Tokyo Shibaura Denki Kabushiki Kaisha Polygonal mirror optical deflector
JPS5824616A (ja) * 1982-07-24 1983-02-14 Nippon Seiko Kk 動圧形流体軸受装置
JPS604617A (ja) * 1983-06-24 1985-01-11 Canon Inc 動圧流体軸受
JPS6388314A (ja) * 1986-09-30 1988-04-19 Toshiba Corp 動圧空気軸受

Also Published As

Publication number Publication date
DE3926852C2 (de) 1994-07-21
US4934836A (en) 1990-06-19
DE3926852A1 (de) 1990-02-22
FR2635565A1 (fr) 1990-02-23

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