JPH11501113A - 潤滑剤バリヤを有する動力学的溝軸受 - Google Patents
潤滑剤バリヤを有する動力学的溝軸受Info
- Publication number
- JPH11501113A JPH11501113A JP9523468A JP52346897A JPH11501113A JP H11501113 A JPH11501113 A JP H11501113A JP 9523468 A JP9523468 A JP 9523468A JP 52346897 A JP52346897 A JP 52346897A JP H11501113 A JPH11501113 A JP H11501113A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- dynamic groove
- annular barrier
- lubricating liquid
- electric motor
- 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.)
- Granted
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
- 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
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.内側軸受部分及びこの内側軸受部分の周りに回転自在の外側軸受部分を有し 、これらの軸受部分には互いに連携動作する軸受面を設け、これらの軸受面間に は軸受ギャップを設け、この軸受ギャップには動作中潤滑液体が存在し、少なく とも一方の軸受部分の軸受面に溝パターンを設け、また前記軸受ギャップから潤 滑液体が漏洩するのを防止する漏洩防止手段を設けた動力学的溝軸受において、 前記漏洩防止手段を、前記外側軸受部分の軸受面に対して隆起し、前記軸受ギャ ップを区切る環状バリヤにより構成したことを特徴とする動力学的溝軸受。 2.前記環状バリヤの内径を、この環状バリヤに隣接する内側軸受部分の軸受面 の直径よりも小さい直径とした請求項1記載の動力学的溝軸受。 3.前記環状バリヤの内径を、この環状バリヤに隣接する内側軸受部分の軸受面 の直径よりも大きく、しかも前記環状バリヤに隣接する外側軸受部分の軸受面の 直径よりも小さい直径とした請求項1又は2記載の動力学的溝軸受。 4.前記環状バリヤに前記軸受ギャップに対面する側面を設け、この側面を外側 軸受部分の軸受面に対して傾斜させた請求項請求項1乃至3のうちのいずれか一 項に記載の動力学的溝軸受。 5.前記内側軸受部分に、前記環状バリヤの前記側面に対向配置した円錐面を設 け、前記環状バリヤの前記側面と前記円錐面との間に環状室を生じ、この環状室 は軸受ギャップから離れる方向に拡開するものとした請求項4記載の動力学的溝 軸受。 6.前記円錐面の前記軸受ギャップから離れる方向に前記環状バリヤの前記側面 を越えて延長させた請求項5記載の動力学的溝軸受。 7.請求項1乃至4のうちのいずれか一項に記載の動力学的溝軸受に使用するに 好適な外側軸受部分。 8.請求項5又は6のいずれか一項に記載の動力学的溝軸受に使用するに好適な 内側軸受部分。 9.ステータと、このステータに対して動力学的溝軸受により回転自在に支承し たロータとを有し、前記ステータを前記動力学的溝軸受の内側軸受部分に固定し 、また前記ロータを前記動力学的溝軸受の外側軸受部分に固定した電動モータに おいて、前記動力学的溝軸受を請求項1乃至6のうちのいずれか一項に記載の動 力学的溝軸受により構成したことを特徴とする電動モータ。 10.情報ディスクと、この情報ディスクに連携動作する走査ユニットとを有し 、前記情報ディスクを電動モータによってハウジング内で回転自在にしたデータ 記憶ユニットにおいて、電動モータを請求項9記載の電動モータにより構成した ことを特徴とするデータ記憶ユニット。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL95203610.1 | 1995-12-22 | ||
EP95203610 | 1995-12-22 | ||
PCT/IB1996/001347 WO1997023736A1 (en) | 1995-12-22 | 1996-12-04 | Dynamic groove bearing with a lubricant barrier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11501113A true JPH11501113A (ja) | 1999-01-26 |
JP4195088B2 JP4195088B2 (ja) | 2008-12-10 |
Family
ID=8220997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52346897A Expired - Fee Related JP4195088B2 (ja) | 1995-12-22 | 1996-12-04 | 潤滑剤バリヤを有する動力学的溝軸受 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5722775A (ja) |
EP (1) | EP0812395B1 (ja) |
JP (1) | JP4195088B2 (ja) |
DE (1) | DE69616764T2 (ja) |
MY (1) | MY132359A (ja) |
WO (1) | WO1997023736A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6789399B1 (en) | 1999-05-14 | 2004-09-14 | Fujikura Ltd. | Method for measuring the twisting of an optical fiber, and a method and apparatus for manufacturing optical fibers |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5791784A (en) * | 1995-04-10 | 1998-08-11 | Nidec Corporation | Fluid dynamic pressure bearing and motor and magnetic disk apparatus using fluid dynamic pressure bearing |
JP3544098B2 (ja) * | 1997-05-19 | 2004-07-21 | 日本電産株式会社 | 動圧流体軸受装置 |
JP3811553B2 (ja) * | 1997-09-05 | 2006-08-23 | 株式会社ジェイテクト | 流体軸受 |
TW468009B (en) * | 1997-11-20 | 2001-12-11 | Koninkl Philips Electronics Nv | Electromotor |
US6196722B1 (en) * | 1998-01-13 | 2001-03-06 | Matsushita Electric Industrial Co., Ltd. | Hydrodynamic bearing |
KR100486698B1 (ko) * | 1998-07-28 | 2005-08-31 | 삼성전자주식회사 | 베어링시스템및이를적용한스핀들모터조립체 |
JP2001082458A (ja) | 1999-09-08 | 2001-03-27 | Koyo Seiko Co Ltd | 動圧軸受 |
JP2003009462A (ja) * | 2001-06-22 | 2003-01-10 | Nippon Densan Corp | スピンドルモータ |
JP4248176B2 (ja) * | 2001-12-14 | 2009-04-02 | 株式会社ジェイテクト | 動圧軸受 |
KR100528329B1 (ko) * | 2003-02-18 | 2005-11-16 | 삼성전자주식회사 | 하드 디스크 드라이브용 스핀들 모터 |
JP4369303B2 (ja) * | 2004-06-01 | 2009-11-18 | 日本電産株式会社 | 動圧軸受装置およびその製造方法、ならびにモータおよびディスク駆動装置 |
CZ302547B6 (cs) * | 2005-07-04 | 2011-07-07 | Visteon Global Technologies, Inc. | Systém adaptivního predního osvetlení motorových vozidel |
US10485288B2 (en) | 2011-05-09 | 2019-11-26 | Israel Junior Pacheco | Lighted footwear |
US9144638B2 (en) | 2013-03-14 | 2015-09-29 | Thoratec Corporation | Blood pump rotor bearings |
CN113124055B (zh) * | 2021-04-27 | 2023-03-14 | 北京工业大学 | 基于径向密珠吸载的气浮止推轴承 |
CN113124056A (zh) * | 2021-04-27 | 2021-07-16 | 北京工业大学 | 基于轴向密珠吸载的气浮止推轴承 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2870057B2 (ja) * | 1989-11-07 | 1999-03-10 | 日本精工株式会社 | 動圧軸受装置 |
US5246294A (en) * | 1991-05-30 | 1993-09-21 | Digital Equipment Corporation | Flow-regulating hydrodynamic bearing |
US5457588A (en) * | 1992-09-22 | 1995-10-10 | Nippon Densan Corporation | Low profile hydrodynamic motor having minimum leakage properties |
JPH06178492A (ja) * | 1992-12-07 | 1994-06-24 | Nippon Densan Corp | スピンドルモータ |
US5427456A (en) * | 1994-04-12 | 1995-06-27 | Synektron Corporation | Fluid bearing with asymmetrical groove pattern |
US5558443A (en) * | 1994-07-22 | 1996-09-24 | Quantum Corporation | Shaft seal for hydrodynamic bearing unit |
US5558445A (en) * | 1994-07-22 | 1996-09-24 | Quantum Corporation | Self-contained hydrodynamic bearing unit and seals |
-
1996
- 1996-12-04 DE DE69616764T patent/DE69616764T2/de not_active Expired - Fee Related
- 1996-12-04 JP JP52346897A patent/JP4195088B2/ja not_active Expired - Fee Related
- 1996-12-04 EP EP96938430A patent/EP0812395B1/en not_active Expired - Lifetime
- 1996-12-04 WO PCT/IB1996/001347 patent/WO1997023736A1/en active IP Right Grant
- 1996-12-10 US US08/762,892 patent/US5722775A/en not_active Expired - Fee Related
- 1996-12-20 MY MYPI96005406A patent/MY132359A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6789399B1 (en) | 1999-05-14 | 2004-09-14 | Fujikura Ltd. | Method for measuring the twisting of an optical fiber, and a method and apparatus for manufacturing optical fibers |
Also Published As
Publication number | Publication date |
---|---|
EP0812395B1 (en) | 2001-11-07 |
US5722775A (en) | 1998-03-03 |
JP4195088B2 (ja) | 2008-12-10 |
WO1997023736A1 (en) | 1997-07-03 |
EP0812395A1 (en) | 1997-12-17 |
DE69616764T2 (de) | 2002-08-01 |
DE69616764D1 (de) | 2001-12-13 |
MY132359A (en) | 2007-10-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH11501113A (ja) | 潤滑剤バリヤを有する動力学的溝軸受 | |
US6364532B1 (en) | Hydrodynamic bearing and motor having the same | |
JP3933692B2 (ja) | V字状オイルバリヤ溝を有する動力学的溝軸受 | |
US4445793A (en) | Bearing | |
US5653540A (en) | Hydrodynamic bearing assembly with single sided grooved counterplace | |
JP2966433B2 (ja) | 磁性流体軸受装置あるいはこの装置を具備するモータ | |
US5977674A (en) | Single plate hydrodynamic bearing with self-balancing fluid level | |
US5533812A (en) | Single plate hydrodynamic bearing with self-balancing fluid level | |
JP2003235199A (ja) | スピンドルモータ | |
US6900568B2 (en) | Fluid dynamic bearing motor configured with an integrated counterplate to contain bearing fluid | |
US5577842A (en) | Absorbent oil barrier for hydrodynamic bearing | |
JPH09303398A (ja) | 含油軸受ユニットおよび含浸軸受ユニットを備えたモータ | |
JP2006509159A (ja) | 薄型スラスト・ジャーナル板流体動圧軸受モータ | |
US6814492B2 (en) | Fluid trap for oil migration prevention | |
US5997179A (en) | Multifluid application in hydrodynamic fluid bearing to reduce evaporation and control stiffness and other bearing performance | |
US6962442B2 (en) | Fluid trap for oil migration | |
US6052257A (en) | Sealing structure for reduced lubricant leakage in a spindle motor | |
US7347625B2 (en) | Grooving in FDB motor capillary seal | |
JP3234030B2 (ja) | スピンドルモータ | |
JP3601081B2 (ja) | スピンドルモータ | |
JP2000060055A (ja) | 動圧流体軸受を備えたモータ | |
KR100220149B1 (ko) | 홈 저어널 베어링의 정현형상의 홈 패턴 | |
JP3608250B2 (ja) | 動圧軸受を使用したディスク駆動装置 | |
JP2900560B2 (ja) | 磁気ディスク用軸受装置 | |
KR100224603B1 (ko) | 역류구가 형성된 유체 베어링 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20031201 |
|
A72 | Notification of change in name of applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A721 Effective date: 20031201 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060523 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20060823 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20061006 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061121 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20070508 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070906 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20070927 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20071206 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080725 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080925 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111003 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |