JPWO2020162351A1 - 摺動部品 - Google Patents
摺動部品 Download PDFInfo
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- JPWO2020162351A1 JPWO2020162351A1 JP2020571160A JP2020571160A JPWO2020162351A1 JP WO2020162351 A1 JPWO2020162351 A1 JP WO2020162351A1 JP 2020571160 A JP2020571160 A JP 2020571160A JP 2020571160 A JP2020571160 A JP 2020571160A JP WO2020162351 A1 JPWO2020162351 A1 JP WO2020162351A1
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- Prior art keywords
- groove portion
- liquid
- dynamic pressure
- sliding
- sealed
- Prior art date
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 239000012530 fluid Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 description 175
- 238000007789 sealing Methods 0.000 description 80
- 230000003068 static effect Effects 0.000 description 40
- 239000000463 material Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
-
- 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
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial 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
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings
-
- 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
- F16C33/1065—Grooves on a bearing surface for distributing or collecting 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
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
- F16C33/741—Sealings of sliding-contact bearings by means of a fluid
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
- F16J15/3416—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with at least one continuous groove
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/43—Clutches, e.g. disengaging bearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Sealing (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
回転機械の相対回転する箇所に配置される環状の摺動部品であって、
前記摺動部品の摺動面には、漏れ側に連通する深溝部と、該深溝部に連通して周方向に並列して延設される複数の浅溝部と、から構成される動圧発生機構が複数設けられている。
これによれば、深溝部は溝の深さが深く容積が大きいので、摺動面の漏れ側まで供給された多くの量の被密封流体を回収して浅溝部から被密封流体を摺動面間に流出させることができるため、摺動面の広い面積で潤滑性を向上させることができる。また、漏れ側に連通する深溝部によって被密封流体を回収し、回収した被密封流体を浅溝部から摺動面間に流出させて一部を径方向被密封流体側に戻すので、漏れ側に漏れる被密封流体が少ない。加えて、並列する複数の浅溝部において、被密封流体側の浅溝部から流出する被密封流体を漏れ側に並列配置される浅溝部により捕集することができるため、潤滑性をより向上させるとともに、漏れ側に漏れる被密封流体をより少なくできる。
これによれば、浅溝部の延設方向端部における動圧により高圧が生じる高圧部を被密封流体側に近付けて配置することができ、浅溝部の延設方向端部から被密封流体を摺動面間の被密封流体側に近づけた位置に戻すことができる。
これによれば、浅溝部の曲率に応じて動圧を調整することができる。また、浅溝部の延設方向端部までの距離を長くできるため、大きな圧力を得ることができる。
これによれば、深溝部と連通する複数の浅溝部において、延設方向端部から流出する被密封流体を漏れ側のサブ浅溝部によりさらに捕集することができるため、漏れ側に漏れる被密封流体をさらに少なくできる。また、深溝部と連通しないサブ浅溝部に対する被密封流体の導入量を増やすことができるため、動圧発生機構の有効範囲を広げることができる。
これによれば、深溝部の周方向のいずれか一方に配置される浅溝部を動圧発生用の浅溝部として利用できるため、摺動部品の回転方向に限られず使用できる。
これによれば、浅溝部から摺動面間に供給された被密封流体を遠心力により被密封流体側に戻すことができるとともに、遠心力により深溝部内に被密封流体を保持しやすい。
これによれば、摺動部品の相対回転時に、特定動圧発生機構により摺動面間を離間させて摺動面間に適当な流体膜を生成しつつ、動圧発生機構によって被密封流体の漏れ側への漏れを低減できる。
9B スパイラル溝(サブ浅溝部)
10 静止密封環(摺動部品)
11 摺動面
14 動圧発生機構
15 液体誘導溝部(深溝部)
16 特定動圧発生機構
17A レイリーステップ(浅溝部)
17B 逆レイリーステップ(浅溝部)
18 段差
20 回転密封環(摺動部品)
21 摺動面
109A,109C スパイラル溝(浅溝部)
109B,109D スパイラル溝(サブ浅溝部)
115 液体誘導溝部(深溝部)
141 動圧発生機構
Claims (7)
- 回転機械の相対回転する箇所に配置される環状の摺動部品であって、
前記摺動部品の摺動面には、漏れ側に連通する深溝部と、該深溝部に連通して周方向に並列して延設される複数の浅溝部と、から構成される動圧発生機構が複数設けられている摺動部品。 - 前記浅溝部が被密封流体側に向かって延びている請求項1に記載の摺動部品。
- 前記浅溝部は、周方向に湾曲している請求項1または2に記載の摺動部品。
- 前記動圧発生機構は、漏れ側に直接連通し前記浅溝部の漏れ側で並列して周方向に延びる前記浅溝部とは独立したサブ浅溝部を有している請求項1ないし3のいずれかに記載の摺動部品。
- 前記浅溝部は、前記深溝部から周方向両側に延びている請求項1ないし4のいずれかに記載の摺動部品。
- 前記深溝部は内径側に連通する請求項1ないし5のいずれかに記載の摺動部品。
- 前記摺動部品の摺動面には、前記動圧発生機構よりも被密封流体側に配置され前記動圧発生機構とは独立する特定動圧発生機構を備えている請求項1ないし6のいずれかに記載の摺動部品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019017875 | 2019-02-04 | ||
JP2019017875 | 2019-02-04 | ||
PCT/JP2020/003647 WO2020162351A1 (ja) | 2019-02-04 | 2020-01-31 | 摺動部品 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020162351A1 true JPWO2020162351A1 (ja) | 2021-12-09 |
JP7387239B2 JP7387239B2 (ja) | 2023-11-28 |
Family
ID=71947476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020571160A Active JP7387239B2 (ja) | 2019-02-04 | 2020-01-31 | 摺動部品 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220099189A1 (ja) |
EP (2) | EP3922872A4 (ja) |
JP (1) | JP7387239B2 (ja) |
KR (1) | KR102627904B1 (ja) |
CN (1) | CN113439167B (ja) |
WO (1) | WO2020162351A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11125334B2 (en) * | 2016-12-21 | 2021-09-21 | Eaton Intelligent Power Limited | Hydrodynamic sealing component and assembly |
JP7201690B2 (ja) | 2018-08-01 | 2023-01-10 | イーグル工業株式会社 | 摺動部品 |
CN112424514B (zh) | 2018-08-24 | 2023-04-28 | 伊格尔工业股份有限公司 | 滑动部件 |
EP3889474A4 (en) | 2018-11-30 | 2022-08-10 | Eagle Industry Co., Ltd. | SLIDE COMPONENT |
US11821521B2 (en) | 2018-12-21 | 2023-11-21 | Eagle Industry Co., Ltd. | Sliding component |
JP7292813B2 (ja) | 2019-02-04 | 2023-06-19 | イーグル工業株式会社 | 摺動部品 |
CN117432709A (zh) * | 2019-02-14 | 2024-01-23 | 伊格尔工业股份有限公司 | 滑动部件 |
WO2020171102A1 (ja) | 2019-02-21 | 2020-08-27 | イーグル工業株式会社 | 摺動部品 |
EP4345343A3 (en) | 2019-07-26 | 2024-06-19 | Eagle Industry Co., Ltd. | Sliding component |
CN118251560A (zh) * | 2021-11-29 | 2024-06-25 | 伊格尔工业股份有限公司 | 滑动元件 |
WO2023223914A1 (ja) * | 2022-05-19 | 2023-11-23 | イーグル工業株式会社 | 摺動部品 |
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