JP2016050648A - 流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 - Google Patents
流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 Download PDFInfo
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- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 11
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 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
-
- 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
- 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
- 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
-
- 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
- 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
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
-
- 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
- H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- 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
- H02K5/1675—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 rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
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- 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
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
-
- 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
- F16C2240/30—Angles, e.g. inclinations
-
- 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
- F16C2360/00—Engines or pumps
- F16C2360/46—Fans, e.g. ventilators
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
【解決手段】本発明の流体動圧軸受装置では、ラジアル動圧発生部Gの各傾斜丘部G2の周方向幅W1と各傾斜溝部G3の周方向幅W2との比W1/W2を1.2以上とし、且つ、軸受部材の内径をDとしたとき、各傾斜溝部の周方向幅W2を0.2D≦W2≦0.4Dとした。
【選択図】図3
Description
1 流体動圧軸受装置
2 軸部材
7 ハウジング
8 軸受スリーブ
9 シール部材
G ラジアル動圧発生部
G1 環状丘部
G2 傾斜丘部
G3 傾斜溝部
R1,R2 ラジアル軸受部
S シール空間
T スラスト軸受部
Claims (6)
- 軸受部材と、前記軸受部材の内周に挿入された軸部材と、前記軸受部材の内周面又は前記軸部材の外周面に設けられたラジアル動圧発生部とを備え、前記ラジアル動圧発生部が、周方向に延びる環状丘部と、前記環状丘部から軸方向両側に延びる複数の傾斜丘部と、前記複数の傾斜丘部の周方向間に設けられた複数の傾斜溝部とを有する流体動圧軸受装置において、
各傾斜丘部の周方向幅W1と各傾斜溝部の周方向幅W2との比W1/W2が1.2以上であり、且つ、前記軸受部材の内径をDとしたとき、各傾斜溝部の周方向幅W2が0.2D≦W2≦0.4Dである流体動圧軸受装置。 - 前記傾斜丘部及び前記傾斜溝部の周方向に対する角度が10〜30°の範囲内である請求項1記載の流体動圧軸受装置。
- 前記軸受部材が焼結金属で形成された請求項1又は2記載の流体動圧軸受装置。
- 請求項1〜3の何れかに記載の流体動圧軸受装置を備えたファンモータ。
- 周方向に延びる環状丘部と、前記環状丘部から軸方向両側に延びる複数の傾斜丘部と、前記複数の傾斜丘部の周方向間に設けられた複数の傾斜溝部とを有するラジアル動圧発生部を内周面に備え、流体動圧軸受装置に組み込まれる軸受部材であって、
前記ラジアル動圧発生部の各傾斜丘部の周方向幅W1と各傾斜溝部の周方向幅W2との比W1/W2が1.2以上であり、且つ、内径をDとしたとき、各傾斜溝部の周方向幅W2が0.2D≦W2≦0.4Dである軸受部材。 - 周方向に延びる環状丘部と、前記環状丘部から軸方向両側に延びる複数の傾斜丘部と、前記複数の傾斜丘部の周方向間に設けられた複数の傾斜溝部とを有するラジアル動圧発生部を外周面に備え、流体動圧軸受装置に組み込まれる軸部材であって、
前記ラジアル動圧発生部の各傾斜丘部の周方向幅W1と各傾斜溝部の周方向幅W2との比W1/W2が1.2以上であり、且つ、外径をD’としたとき、各傾斜溝部の周方向幅W2が0.2D’≦W2≦0.4D’である軸部材。
Priority Applications (4)
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JP2014177380A JP6466105B2 (ja) | 2014-09-01 | 2014-09-01 | 流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 |
CN201580045729.3A CN106662143B (zh) | 2014-09-01 | 2015-08-25 | 流体动压轴承装置与使用于该装置的轴承构件以及轴构件 |
PCT/JP2015/073855 WO2016035613A1 (ja) | 2014-09-01 | 2015-08-25 | 流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 |
US15/506,349 US10030696B2 (en) | 2014-09-01 | 2015-08-25 | Fluid dynamic bearing device, and bearing member and shaft member for use in same |
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JP2014177380A JP6466105B2 (ja) | 2014-09-01 | 2014-09-01 | 流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 |
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JP2019001988A Division JP6599572B2 (ja) | 2019-01-09 | 2019-01-09 | 流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018117183A1 (ja) * | 2016-12-22 | 2018-06-28 | 三菱マテリアル株式会社 | 焼結含油軸受及びその製造方法 |
KR20190044680A (ko) | 2016-09-08 | 2019-04-30 | 엔티엔 가부시키가이샤 | 소결 베어링 및 그 제조 방법 |
WO2022064985A1 (ja) * | 2020-09-28 | 2022-03-31 | Ntn株式会社 | 動圧軸受、流体動圧軸受装置、及びモータ |
WO2024057868A1 (ja) * | 2022-09-16 | 2024-03-21 | Ntn株式会社 | 動圧軸受、動圧軸受装置及びモータ |
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JP6858508B2 (ja) * | 2016-08-26 | 2021-04-14 | Ntn株式会社 | 動圧軸受およびその製造方法 |
EP3751946A4 (en) | 2018-02-14 | 2021-01-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | LISTENING PROCESS AND DEVICE |
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JPH11336761A (ja) * | 1998-05-28 | 1999-12-07 | Ntn Corp | 動圧型焼結含グリース軸受 |
JP2007255457A (ja) * | 2006-03-20 | 2007-10-04 | Ntn Corp | 動圧軸受装置 |
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JP2013145021A (ja) * | 2012-01-16 | 2013-07-25 | Samsung Electro-Mechanics Japan Advanced Technology Co Ltd | 回転機器 |
KR20130123253A (ko) * | 2012-05-02 | 2013-11-12 | 삼성전기주식회사 | 동압 베어링 장치 및 이를 구비하는 스핀들 모터 |
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- 2015-08-25 CN CN201580045729.3A patent/CN106662143B/zh active Active
- 2015-08-25 WO PCT/JP2015/073855 patent/WO2016035613A1/ja active Application Filing
- 2015-08-25 US US15/506,349 patent/US10030696B2/en active Active
Patent Citations (2)
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JPH11336761A (ja) * | 1998-05-28 | 1999-12-07 | Ntn Corp | 動圧型焼結含グリース軸受 |
JP2007255457A (ja) * | 2006-03-20 | 2007-10-04 | Ntn Corp | 動圧軸受装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20190044680A (ko) | 2016-09-08 | 2019-04-30 | 엔티엔 가부시키가이샤 | 소결 베어링 및 그 제조 방법 |
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WO2018117183A1 (ja) * | 2016-12-22 | 2018-06-28 | 三菱マテリアル株式会社 | 焼結含油軸受及びその製造方法 |
JPWO2018117183A1 (ja) * | 2016-12-22 | 2019-10-31 | 三菱マテリアル株式会社 | 焼結含油軸受及びその製造方法 |
US11073178B2 (en) | 2016-12-22 | 2021-07-27 | Diamet Corporation | Oil-impregnated sintered bearing and method for manufacturing the same |
WO2022064985A1 (ja) * | 2020-09-28 | 2022-03-31 | Ntn株式会社 | 動圧軸受、流体動圧軸受装置、及びモータ |
WO2024057868A1 (ja) * | 2022-09-16 | 2024-03-21 | Ntn株式会社 | 動圧軸受、動圧軸受装置及びモータ |
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CN106662143A (zh) | 2017-05-10 |
WO2016035613A1 (ja) | 2016-03-10 |
JP6466105B2 (ja) | 2019-02-06 |
US20170254357A1 (en) | 2017-09-07 |
CN106662143B (zh) | 2019-03-29 |
US10030696B2 (en) | 2018-07-24 |
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