DE69205718D1 - Hydrodynamisches Lager. - Google Patents

Hydrodynamisches Lager.

Info

Publication number
DE69205718D1
DE69205718D1 DE69205718T DE69205718T DE69205718D1 DE 69205718 D1 DE69205718 D1 DE 69205718D1 DE 69205718 T DE69205718 T DE 69205718T DE 69205718 T DE69205718 T DE 69205718T DE 69205718 D1 DE69205718 D1 DE 69205718D1
Authority
DE
Germany
Prior art keywords
hydrodynamic bearing
magnetic
rotating member
magnet
stationary
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
DE69205718T
Other languages
English (en)
Other versions
DE69205718T2 (de
Inventor
Kimio Komata
Toshihiro Otani
Yasushi Hisabe
Katsutoshi Chiba
Akihiro Machida
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.)
Ebara Corp
Original Assignee
Ebara Corp
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 Ebara Corp filed Critical Ebara Corp
Publication of DE69205718D1 publication Critical patent/DE69205718D1/de
Application granted granted Critical
Publication of DE69205718T2 publication Critical patent/DE69205718T2/de
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
    • F16C17/10—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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
    • F16C32/0417—Passive magnetic bearings with permanent magnets on one part attracting the other part for axial load mainly
    • 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
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/121—Mechanical drive devices for polygonal mirrors
DE69205718T 1991-04-04 1992-04-01 Hydrodynamisches Lager. Expired - Fee Related DE69205718T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3099537A JPH04307108A (ja) 1991-04-04 1991-04-04 動圧軸受装置

Publications (2)

Publication Number Publication Date
DE69205718D1 true DE69205718D1 (de) 1995-12-07
DE69205718T2 DE69205718T2 (de) 1996-05-09

Family

ID=14249953

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69205718T Expired - Fee Related DE69205718T2 (de) 1991-04-04 1992-04-01 Hydrodynamisches Lager.

Country Status (5)

Country Link
US (1) US5710470A (de)
EP (1) EP0508297B1 (de)
JP (1) JPH04307108A (de)
AT (1) ATE129786T1 (de)
DE (1) DE69205718T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07140412A (ja) * 1993-09-24 1995-06-02 Ebara Corp ポリゴンミラーの取付構造
EP0655637A1 (de) * 1993-11-30 1995-05-31 Eastman Kodak Company Rotoranordnung mit von Magneten gestütztem luftlager
JP3184789B2 (ja) * 1997-10-06 2001-07-09 セイコーインスツルメンツ株式会社 動圧軸受を備えたモータ、及び該モータを駆動源とする回転体装置
CN100368696C (zh) * 2002-07-10 2008-02-13 特伯考尔公司 利用永磁体减轻转子-支承系统中推力负荷的装置
US8531071B2 (en) * 2009-12-28 2013-09-10 Rolls-Royce Corporation Turbine engine powered system with hybrid bearing

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132353A (en) * 1975-05-13 1976-11-17 Nippon Hoso Kyokai <Nhk> Thrust bearing device
US4167295A (en) * 1977-12-08 1979-09-11 The Garrett Corporation Magnetic thrust force relief for a foil bearing turbomachine
JPS58142025A (ja) * 1982-02-13 1983-08-23 Toshiba Corp スピンドル装置
JPS58224324A (ja) * 1982-06-24 1983-12-26 Toshiba Corp 回転鏡光偏向器
JPS5917019A (ja) * 1982-07-20 1984-01-28 Toshiba Corp 回転体支持装置
JPS59204443A (ja) * 1983-05-04 1984-11-19 Canon Inc モータ装置
JPS59226647A (ja) * 1983-06-02 1984-12-19 Matsushita Electric Ind Co Ltd 直流モ−タ
SU1209954A1 (ru) * 1984-01-19 1986-02-07 Калининский Ордена Трудового Красного Знамени Политехнический Институт Магнитный упорный подшипник
JPS60244913A (ja) * 1984-05-21 1985-12-04 Toshiba Corp 回転体支持装置
JPS6115547A (ja) * 1984-06-29 1986-01-23 Fuji Xerox Co Ltd 動圧スピンドルモ−タ
JPS6153617A (ja) * 1984-08-24 1986-03-17 Toshiba Corp 光偏向装置
JPH0226215Y2 (de) * 1984-12-07 1990-07-17
JPS6220914A (ja) * 1985-07-19 1987-01-29 Copal Co Ltd モ−タ軸受
DD252080A3 (de) * 1985-08-30 1987-12-09 Wtoz Der Brau Und Malzindustri Verfahren zur substanzschonenden und strukturerhaltenden aufbereitung von diatomeenerde zur gewinnung vorausbestimmbarer mengen von kieselgut
US4726640A (en) * 1985-09-24 1988-02-23 Ricoh Company, Ltd. Optical deflector with a pneumatic and a magnetic bearing
JPS6285216A (ja) * 1985-10-11 1987-04-18 Copal Electron Co Ltd 回転型光偏向器のスラスト磁気軸受
JPS6292750A (ja) * 1985-10-15 1987-04-28 Shikoo Giken:Kk 磁気浮上型偏平整流子モ−タ
JPS62154413A (ja) * 1985-12-26 1987-07-09 三菱レイヨン株式会社 凹凸面を有する透明電極化樹脂の製造方法
JPH0772301B2 (ja) * 1985-12-26 1995-08-02 川崎製鉄株式会社 方向性けい素鋼板の鉄損低減方法
JPS6351929A (ja) * 1986-06-18 1988-03-05 Asahi Denka Kogyo Kk 界面活性剤組成物
JPS6370532A (ja) * 1986-09-12 1988-03-30 Hitachi Ltd 半導体装置
JPS63194556A (ja) * 1987-02-04 1988-08-11 Hitachi Ltd ミシン用ブラシレスモ−トル
JP2637096B2 (ja) * 1987-04-16 1997-08-06 株式会社リコー 空気磁気軸受型光偏向器
JPS6415823A (en) * 1987-07-09 1989-01-19 Nec Corp Shifter device
ATE95349T1 (de) * 1989-07-24 1993-10-15 Ebara Corp Spindelmotor.
US5069515A (en) * 1989-09-22 1991-12-03 Ricoh Company, Ltd. Optical deflector of air bearing type
US4984881A (en) * 1989-12-19 1991-01-15 Ebara Corporation Rotation supporting device of a polygon mirror
US5019738A (en) * 1990-07-16 1991-05-28 Lincoln Laser Company Self-pressurizing gas supported surface-roughness bearing
US5036235A (en) * 1990-07-25 1991-07-30 Xerox Corporation Brushless DC motor having a stable hydrodynamic bearing system

Also Published As

Publication number Publication date
US5710470A (en) 1998-01-20
EP0508297A1 (de) 1992-10-14
EP0508297B1 (de) 1995-11-02
ATE129786T1 (de) 1995-11-15
DE69205718T2 (de) 1996-05-09
JPH04307108A (ja) 1992-10-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee