JP2022172228A - 密封装置 - Google Patents
密封装置 Download PDFInfo
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- JP2022172228A JP2022172228A JP2022135370A JP2022135370A JP2022172228A JP 2022172228 A JP2022172228 A JP 2022172228A JP 2022135370 A JP2022135370 A JP 2022135370A JP 2022135370 A JP2022135370 A JP 2022135370A JP 2022172228 A JP2022172228 A JP 2022172228A
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- lip
- peripheral surface
- inner peripheral
- sealing device
- seal
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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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F15/00—Axle-boxes
- B61F15/20—Details
- B61F15/22—Sealing means preventing entrance of dust or leakage of oil
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
- F16C33/7856—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race with a single sealing lip
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7873—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section
- F16C33/7876—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section with sealing lips
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
- F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
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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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
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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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
Description
図1は、本発明の実施形態に係る密封装置1が使用される転がり軸受2の一例である鉄道車両の車軸の軸受を示す。但し、本発明の用途は、鉄道車両の軸受には限定されず、トラック、バスなどの大型自動車の車軸の軸受にも本発明は適用可能である。また、図示の転がり軸受2は、RCT(Rotating End Cap Tapered Roller)軸受であるが、本発明の用途は、RCT軸受には限定されず、他の種類の転動体を有する、RCC(Rotating End Cap Cylindrical Roller)軸受、玉軸受、針軸受などの他の転がり軸受にも本発明は適用可能である。
以上、本発明の実施形態を説明したが、上記の説明は本発明を限定するものではなく、本発明の技術的範囲において、構成要素の削除、追加、置換を含む様々な変形例が考えられる。
前記外側部材の孔の内部に固定される、剛性材料から形成された環状の剛性部と、
前記剛性部に固定された、弾性材料から形成された弾性部とを有し、
前記弾性部は、前記内側部材または前記内側部材に固定された部材に摺動可能に接触する円錐台環状のシールリップを有し、
前記シールリップの内周面には、前記内側部材または前記内側部材に固定された部材に摺動可能に常に接触する複数の突起が形成されており、前記突起の周囲の部分では、前記シールリップと前記内側部材または前記内側部材に固定された部材の間に間隙が存在する
ことを特徴とする密封装置。
ことを特徴とする条項1に記載の密封装置。
ことを特徴とする条項1または2に記載の密封装置。
ことを特徴とする条項3に記載の密封装置。
前記ダストリップの内周面には、凹凸が形成されている
ことを特徴とする条項1から4のいずれか1項に記載の密封装置。
ことを特徴とする条項5に記載の密封装置。
2 転がり軸受
4 車軸
6 内輪(内側部材)
8 外輪(外側部材)
8A 孔
12 油切り部材(内側部材)
16 外側シール部材
18 中間シール部材
20 内側シール部材
20 内側シール部材(密封装置)
22 剛性部
24 弾性部
26 取付け円筒部
28 円環部
30 シールリップ(グリースリップ)
32 副リップ(ダストリップ)
34 サイドリップ(ダストリップ)
36 突起
36A 平行面
36B 傾斜面
38 突起
40 密封装置
41 内側シール部材
50 外側シール部材(密封装置)
52 剛性部
54 弾性部
55 円筒部分
56 円環部分
62 シールリップ(グリースリップ)
64 ダストリップ(サイドリップ)
84 突起
84A 平行面
84B 傾斜面
90 密封装置
91 内側シール部材(密封装置)
92 剛性部
93 弾性部
94 取付け円筒部
95 円環部
96 シールリップ(グリースリップ)
97 副リップ(ダストリップ)
98 サイドリップ(ダストリップ)
100 突起
100A 平行面
100B 傾斜面
102 突起
104 突起
110 スリンガー
Claims (6)
- 転がり軸受の相対的に回転する内側部材と外側部材との間に配置され、前記内側部材と前記外側部材との間の間隙を封止する密封装置であって、
前記外側部材の孔の内部に固定される、剛性材料から形成された環状の剛性部と、
前記剛性部に固定された、弾性材料から形成された弾性部とを有し、
前記弾性部は、前記内側部材または前記内側部材に固定された部材に摺動可能に接触する円錐台環状のシールリップを有し、
前記シールリップの内周面には、前記内側部材または前記内側部材に固定された部材に摺動可能に常に接触する複数の突起が形成されており、前記突起の周囲の部分では、前記シールリップと前記内側部材または前記内側部材に固定された部材の間に間隙が存在する
ことを特徴とする密封装置。 - 前記突起の各々は、前記シールリップの内周面に平行な平行面と、前記平行面に連なり前記平行面から前記内周面に向けて高さが徐々に小さくなる傾斜面を有する
ことを特徴とする請求項1に記載の密封装置。 - 前記シールリップの内周面には、凹凸が形成されている
ことを特徴とする請求項1または2に記載の密封装置。 - 前記内周面の十点平均粗さRzが15μm以上、30μm以下である
ことを特徴とする請求項3に記載の密封装置。 - 前記弾性部は、前記内側部材または前記内側部材に固定された部材に摺動可能に接触する円錐台環状のダストリップを有し、
前記ダストリップの内周面には、凹凸が形成されている
ことを特徴とする請求項1から4のいずれか1項に記載の密封装置。 - 前記ダストリップの前記内周面の十点平均粗さRzが15μm以上、30μm以下である
ことを特徴とする請求項5に記載の密封装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018223142 | 2018-11-29 | ||
JP2018223142 | 2018-11-29 | ||
PCT/JP2019/043235 WO2020110623A1 (ja) | 2018-11-29 | 2019-11-05 | 密封装置 |
JP2020558238A JP7203862B2 (ja) | 2018-11-29 | 2019-11-05 | 密封装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020558238A Division JP7203862B2 (ja) | 2018-11-29 | 2019-11-05 | 密封装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022172228A true JP2022172228A (ja) | 2022-11-15 |
JP7354381B2 JP7354381B2 (ja) | 2023-10-02 |
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ID=70854256
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Application Number | Title | Priority Date | Filing Date |
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JP2020558238A Active JP7203862B2 (ja) | 2018-11-29 | 2019-11-05 | 密封装置 |
JP2022135370A Active JP7354381B2 (ja) | 2018-11-29 | 2022-08-26 | 密封装置 |
Family Applications Before (1)
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JP2020558238A Active JP7203862B2 (ja) | 2018-11-29 | 2019-11-05 | 密封装置 |
Country Status (6)
Country | Link |
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US (1) | US11920636B2 (ja) |
EP (1) | EP3889454B1 (ja) |
JP (2) | JP7203862B2 (ja) |
KR (1) | KR102541095B1 (ja) |
CN (1) | CN112789420B (ja) |
WO (1) | WO2020110623A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2022091861A1 (ja) * | 2020-10-29 | 2022-05-05 | Nok株式会社 | 密封装置 |
CN116989065A (zh) * | 2023-09-27 | 2023-11-03 | 万向钱潮股份公司 | 一种用于轴承的密封组件及轮毂轴承 |
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JPS5463843U (ja) | 1977-10-14 | 1979-05-07 | ||
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JP2009074602A (ja) * | 2007-09-20 | 2009-04-09 | Nok Corp | オイルシール |
JP2009185968A (ja) | 2008-02-08 | 2009-08-20 | Nok Corp | オイルシール |
JP2012072822A (ja) * | 2010-09-28 | 2012-04-12 | Nok Corp | 密封装置 |
JP5741812B2 (ja) * | 2011-02-24 | 2015-07-01 | Nok株式会社 | 密封装置 |
JP6054135B2 (ja) | 2012-10-23 | 2016-12-27 | Nok株式会社 | オイルシール |
JP2015143564A (ja) * | 2013-12-27 | 2015-08-06 | 日本精工株式会社 | シール付車輪支持用軸受ユニット |
JP6290657B2 (ja) * | 2014-03-07 | 2018-03-07 | 光洋シーリングテクノ株式会社 | 密封装置 |
EP3269989B1 (en) * | 2015-03-09 | 2021-07-21 | NTN Corporation | Sealed bearing |
EP3546776B1 (en) | 2016-11-25 | 2021-06-16 | Nok Corporation | Sealing device and hub bearing |
JP6520976B2 (ja) * | 2017-03-22 | 2019-05-29 | 株式会社ジェイテクト | 密封型スラスト軸受 |
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2019
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