JP7370681B2 - 摺動部品 - Google Patents
摺動部品 Download PDFInfo
- Publication number
- JP7370681B2 JP7370681B2 JP2020572263A JP2020572263A JP7370681B2 JP 7370681 B2 JP7370681 B2 JP 7370681B2 JP 2020572263 A JP2020572263 A JP 2020572263A JP 2020572263 A JP2020572263 A JP 2020572263A JP 7370681 B2 JP7370681 B2 JP 7370681B2
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- Japan
- Prior art keywords
- dynamic pressure
- pressure generating
- groove
- deep groove
- sliding
- 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.)
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- 239000012530 fluid Substances 0.000 claims description 59
- 238000004891 communication Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 description 30
- 239000000463 material Substances 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000003068 static effect Effects 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
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000002344 surface layer Substances 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
- F16C17/02—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
- 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
- F16J15/342—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 means for feeding fluid directly to the face
-
- 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
- F16C33/72—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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Sealing (AREA)
- Sliding-Contact Bearings (AREA)
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、一端が閉塞端を成し他端が径方向の被密封流体側と漏れ側のいずれか一方側に連通する入口をなす動圧発生溝が設けられ、
前記摺動面には、該動圧発生溝を構成する両側壁のうち一方側を構成する動圧生成壁とは周方向反対の側壁側において、前記動圧発生溝よりも深い深溝の入口が前記動圧発生溝の入口に連通して形成されている。
これによれば、摺動部品の相対回転時に動圧発生溝において最も低い圧力が生成されやすい箇所は、動圧発生溝の入口における、動圧発生溝を構成する両側壁のうち一方側を構成する動圧生成壁とは周方向反対の側壁側であり、この箇所に深溝の入口を連通させたことで、この深溝から動圧発生溝へ流体が十分に供給され、当該箇所に負圧が生じにくい。そのため、動圧発生溝に連続的に流体が供給され、動圧発生溝の閉塞端から所期の圧力を発生させることができ、潤滑性に優れる。
これによれば、深溝が動圧発生溝の動圧を発生させる機能に影響しにくくしながら、深溝から動圧発生溝への流入面積を広く確保できる。
これによれば、深溝の内部空間は摺動面の周方向において対向する壁部に挟まれていることから、深溝内に被密封流体を保持しやすく、動圧発生溝に対して被密封流体を安定して供給することができる。
これによれば、深溝の周方向を短くすることで深溝において摺動部品の相対回転による動圧が発生しにくく、深溝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おいて動圧発生溝への被密封流体の導入と動圧発生溝の入口近傍への負圧の発生抑止とを確実に両立できる。
これによれば、深溝の容積が大きく、摺動部品の相対回転時に、深溝部から動圧発生溝に充分な量の被密封流体が供給される。
2 スリーブ
3 回転密封環(摺動部品)
4 ハウジング
5 シールカバー
6 静止密封環(摺動部品)
7 付勢手段
11 入口
15 動圧発生溝
15a 動圧発生溝入口
15b 閉塞端
15c 側壁
15d 側壁(動圧生成壁)
15e 底面
15f 壁
15h 先端部
16 深溝
16a 深溝入口
16b 閉塞端
16c 側壁
16d 側壁
16e 底面
20 ランド部
25 動圧発生溝
26 深溝
35 動圧発生溝
36 深溝
45 動圧発生溝
46 深溝
46b 閉塞端
S 摺動面
Claims (6)
- 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、一端が閉塞端を成し他端が径方向の被密封流体側と漏れ側のいずれか一方側に連通する入口をなす動圧発生溝が設けられ、
前記摺動面には、該動圧発生溝を構成する両側壁のうち一方側を構成する動圧生成壁とは周方向反対の側壁側において、前記動圧発生溝よりも深い深溝の入口が前記動圧発生溝の入口に連通して形成されており、
前記深溝は、前記動圧発生溝の前記動圧生成壁とは周方向反対の側壁よりも径方向に短い摺動部品。 - 前記深溝は径方向において前記動圧発生溝の前記動圧生成壁とは周方向反対の側壁に沿って該動圧発生溝に連通されている請求項1に記載の摺動部品。
- 前記深溝は径方向に延びて対向する壁部を備えている請求項1または2に記載の摺動部品。
- 前記深溝は周方向の幅が径方向の長さよりも短く形成されている請求項1ないし3のいずれかに記載の摺動部品。
- 前記深溝の入口の幅は前記動圧発生溝の入口の幅の半分以下である請求項1ないし4のいずれかに記載の摺動部品。
- 前記深溝の深さは前記動圧発生溝の深さの10倍以上である請求項1ないし5のいずれかに記載の摺動部品。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019024901 | 2019-02-14 | ||
| JP2019024901 | 2019-02-14 | ||
| PCT/JP2020/005260 WO2020166590A1 (ja) | 2019-02-14 | 2020-02-12 | 摺動部品 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2020166590A1 JPWO2020166590A1 (ja) | 2021-12-09 |
| JP7370681B2 true JP7370681B2 (ja) | 2023-10-30 |
Family
ID=72045557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020572263A Active JP7370681B2 (ja) | 2019-02-14 | 2020-02-12 | 摺動部品 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11933405B2 (ja) |
| EP (1) | EP3926186B1 (ja) |
| JP (1) | JP7370681B2 (ja) |
| KR (1) | KR102639196B1 (ja) |
| CN (2) | CN113490796A (ja) |
| WO (1) | WO2020166590A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4224040A4 (en) * | 2020-09-29 | 2024-11-06 | Eagle Industry Co., Ltd. | SLIDING COMPONENT |
| JP7767584B2 (ja) * | 2022-03-24 | 2025-11-11 | イーグル工業株式会社 | 摺動部品 |
| WO2025146673A1 (en) * | 2024-01-05 | 2025-07-10 | John Crane Inc. | Drive ring for rotary shaft equipment seals |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012002295A (ja) | 2010-06-17 | 2012-01-05 | Canon Machinery Inc | 平面摺動機構 |
| WO2014024742A1 (ja) | 2012-08-04 | 2014-02-13 | イーグル工業株式会社 | 摺動部品 |
| JP2016080090A (ja) | 2014-10-17 | 2016-05-16 | イーグル工業株式会社 | メカニカルシール |
| WO2018105505A1 (ja) | 2016-12-07 | 2018-06-14 | イーグル工業株式会社 | しゅう動部品 |
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- 2020-02-12 JP JP2020572263A patent/JP7370681B2/ja active Active
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- 2020-02-12 CN CN202310935058.4A patent/CN117432709A/zh active Pending
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| CN113490796A (zh) | 2021-10-08 |
| EP3926186A4 (en) | 2022-11-16 |
| EP3926186B1 (en) | 2024-08-21 |
| US11933405B2 (en) | 2024-03-19 |
| US20220128092A1 (en) | 2022-04-28 |
| EP3926186A1 (en) | 2021-12-22 |
| JPWO2020166590A1 (ja) | 2021-12-09 |
| KR102639196B1 (ko) | 2024-02-21 |
| CN117432709A (zh) | 2024-01-23 |
| KR20210114544A (ko) | 2021-09-23 |
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