CN101265949A - Three lips contact type seal bearing - Google Patents
Three lips contact type seal bearing Download PDFInfo
- Publication number
- CN101265949A CN101265949A CNA2008100240103A CN200810024010A CN101265949A CN 101265949 A CN101265949 A CN 101265949A CN A2008100240103 A CNA2008100240103 A CN A2008100240103A CN 200810024010 A CN200810024010 A CN 200810024010A CN 101265949 A CN101265949 A CN 101265949A
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- CN
- China
- Prior art keywords
- bearing
- inner race
- sealing
- contact
- lips
- 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.)
- Pending
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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
- 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
- F16C33/7816—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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a three-lip contact-type sealing bearing which comprises a bearing outer ring, a bearing inner race, a retainer, a rolling body and a sealing ring, wherein the sealing ring is provided with a sealing element and a frame; three parallel contacting lips are arranged at the inside circumference of the sealing element and closely contact the external diametric plane of the bearing inner race; the mono-lateral shrink range of the contacting lips and the external diametric plane of the bearing inner race is 1.2mm to 1.8mm; the width of the outermost contacting lip is larger than the width of the other two contacting lips; the external lateral face of the frame is provided with a rib of a positioning sealing element; the closing diameter of the rib is larger than the outer diameter of the bearing outer bring by 8mm to 12mm; the housing washer of the sealing ring is embedded on the inner surface of the bearing outer ring. The sealing bearing has the advantages that good sealing performance is achieved; the entering of external impurity such as dust and mud water into the interior of the bearing and the escape of lubricated lipid in the bearing are avoided; the wear of the bearing is reduced; and the service life of the bearing is prolonged.
Description
Technical field
The present invention relates to technical field of bearings, especially a kind of three lips contact type seal bearing.
Background technique
Pump machines, the working environment of equipment such as oilfield machinery is very abominable, its workpiece usually turns round being mixed with in the place of muddy water, sealability and operating life to the bearing that uses requires very high thus, the seal ring that carries on original this bearing, as shown in Figure 3, have Sealing 7 and skeleton 6, the interior Zhou Yousan of Sealing 7 the identical contact lip 71 of thickness that is arranged in parallel, contact with the outer diametric plane of bearing inner race, contact lip 71 is about 0.4mm with the monolateral magnitude of interference of the outer diametric plane of bearing inner race, skeleton 6 outer side surfaces have the rib 61 of positioning seals, its closing in diameter than the big 1.0mm of bearing inner race external diameter about, this structure makes the contact lip 71 of Sealing 7 and the magnitude of interference between the bearing inner race external diameter too small, the containing of 6 pairs of Sealings 7 of skeleton is too much, the elasticity deficiency of Sealing 7, cause the sealability of seal ring to reduce, influenced the lubrication effect of bearing, for being mixed with the bearing of working under the environment of muddy water for a long time, this sealing configuration form is just more inadequate, and slime water is easy to infiltrate bearing inside, and trickle mud pellet and lubricant grease are lumped together, aggravate the wearing and tearing of bearing, finally caused the bearing shortening greatly in working life.
Summary of the invention
The technical problem to be solved in the present invention is: the problem that the sealability when bearing is worked under rugged environment reduces, the invention provides a kind of three lips contact type seal bearing, when this bearing is worked under the rugged environment that contain sposh water etc., also has excellent sealing performance, thereby reduce the wearing and tearing of bearing, prolong the operating life of bearing.
The technical solution adopted for the present invention to solve the technical problems is: a kind of three lips contact type seal bearing, has bearing outer ring, bearing inner race, retainer, rolling element, seal ring, described seal ring has Sealing and skeleton, the interior Zhou Yousan of described Sealing contact lip that is arranged in parallel, three contact lips closely contact with the outer diametric plane of bearing inner race, described skeleton outer side surface has the rib of positioning seals, the embedded internal surface that is fixed on bearing outer ring in the outer ring of seal ring, the monolateral magnitude of interference of the outer diametric plane of described contact lip and bearing inner race is 1.2mm～1.8mm, and the closing in diameter of the rib of described skeleton outer side surface is than the big 8mm～12mm of bearing inner race external diameter.
The monolateral magnitude of interference of the outer diametric plane of described furtherly contact lip and bearing inner race is 1.5mm, the closing in diameter of the rib of described skeleton outer side surface is than the big 10mm of bearing inner race external diameter, and the contact lip thickness of described seal ring ragged edge contacts lip thickness greater than two other.
The sealing member material of described seal ring is a rubber, and the material of skeleton is a sheet metal.
The invention has the beneficial effects as follows, after the present invention adopts above scheme, the radial interference amount of Sealing contact lip and the outer diametric plane of bearing inner race strengthens, the contact lip combines tighter with the outer diametric plane of bearing inner race, the thickening of contact lip thickness, itself and the outer diametric plane contact length of bearing inner race are extended, shorten the rib of skeleton, minimizing is to the containing amount of Sealing, strengthen the elasticity of Sealing, improved the sealability of bearing, can prevent infiltration bearing inside such as slime water in the work effectively, reduce the wearing and tearing of bearing, prolong the operating life of bearing.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of the used seal ring of the present invention.
Fig. 3 is the structural representation of the used seal ring of original technology.
1. bearing outer rings, 2. bearing inner races, 3. retainers, 4. rolling elements, 5. seal rings, 51. Sealings, 511. contact lips, 512. contact lips, 513. contact lips, 52. skeletons, 521. ribs, 6. skeletons, 61. ribs, 7. Sealings, 71. contact lips among the figure
Embodiment
The three lips contact type seal bearing shown in Figure 2 as Fig. 1, has bearing outer ring 1, bearing inner race 2, retainer 3, rolling element 4, seal ring 5, the embedded internal surface that is fixed on bearing outer ring 1 in the outer ring of seal ring 5, the quantity of seal ring 5 is two, is symmetrical arranged with respect to rolling element 4, described seal ring 5 has Sealing 51 and skeleton 52, interior Zhou Yousan contact lip 511,512,513 that is arranged in parallel at Sealing 51, three contact lips 511,512,513 closely contact with bearing inner race 2 outer diametric planes, contact lip 511,512,513 with the monolateral magnitude of interference of bearing inner race 2 outer diametric planes be 1.5mm, can make to contact lip 511,512,513 combine tightr with bearing inner race 2 outer diametric planes, contact lip 511 thickness of seal ring 5 ragged edges are greater than two other contact lip 512,513 thickness, and seal ring 5 and bearing inner race 2 outer diametric plane contact lengths have extended, Sealing 51 materials of seal ring 5 are rubber, and commonly used is butyronitrile rubber.Described skeleton 52 outer side surfaces have the rib 521 of positioning seals, the closing in diameter of this rib 521 is than the big 10mm of bearing inner race 2 external diameters, can shorten rib 521 length of skeleton 52 like this, reduce its containing amount to Sealing 51, thereby strengthened the elasticity of Sealing 51, the material selection sheet metal of skeleton 52.
Three lips contact type seal bearing of the present invention, when bearing is static, three contact lips 511 that closely contact with bearing inner race 2 outer diametric plane interference fit on the seal ring 5,512,513, can prevent extraneous dust effectively, impurity such as muddy water enter leaking of bearing inside and bearing internal lubrication grease, during bearing operation, the bearing temperature inside makes the bearing gas inside expand greater than ambient temperature, formation is to the outside thrust of seal ring 5, because seal ring 5 is an interference fit with bearing inner race 2 outer diametric planes, three contact lips 511,512,513 are valgoid, make seal ring 5 and bearing inner race 2 outer diametric plane contact lengths longer when static, the elasticity of adding Sealing 51 strengthens, thereby has improved the sealability of bearing greatly, reduce the wearing and tearing of bearing, prolong the operating life of bearing.
Claims (4)
1. three lips contact type seal bearing, has bearing outer ring (1), bearing inner race (2), retainer (3), rolling element (4), seal ring (5), described seal ring (5) has Sealing (51) and skeleton (52), the interior Zhou Yousan of Sealing (51) contact lip (511,512 that is arranged in parallel, 513), three contact lips (511,512,513) closely contact with the outer diametric plane of bearing inner race (2), described skeleton (52) outer side surface has the rib (521) of positioning seals (51), the embedded internal surface that is fixed on bearing outer ring (1) in the outer ring of seal ring (5) is characterized in that: described contact lip (511,512,513) the monolateral magnitude of interference with the outer diametric plane of bearing inner race (2) is 1.2mm～1.8mm, and the closing in diameter of the rib (521) of described skeleton (52) outer side surface is than the big 8mm～12mm of bearing inner race (2) external diameter.
2. three lips contact type seal bearing according to claim 1, it is characterized in that: described contact lip (511,512,513) the monolateral magnitude of interference with the outer diametric plane of bearing inner race (2) is 1.5mm, and the closing in diameter of the rib (521) of described skeleton (52) outer side surface is than the big 10mm of bearing inner race (2) external diameter.
3. three lips contact type seal bearing according to claim 1 and 2 is characterized in that: contact lip (511) thickness of described seal ring (5) ragged edge contacts lip thickness (512,513) greater than two other.
4. three lips contact type seal bearing according to claim 1 is characterized in that: Sealing (51) material of described seal ring (5) is a rubber, and the material of skeleton (52) is a sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100240103A CN101265949A (en) | 2008-04-23 | 2008-04-23 | Three lips contact type seal bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100240103A CN101265949A (en) | 2008-04-23 | 2008-04-23 | Three lips contact type seal bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101265949A true CN101265949A (en) | 2008-09-17 |
Family
ID=39988560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100240103A Pending CN101265949A (en) | 2008-04-23 | 2008-04-23 | Three lips contact type seal bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101265949A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174752A (en) * | 2013-03-29 | 2013-06-26 | 山东华泰轴承制造有限公司 | High-reliability compound sealing structure for spindle bearing and processing technology |
| DE102016220390A1 (en) * | 2016-10-18 | 2018-04-19 | Schaeffler Technologies AG & Co. KG | Sealing arrangement with a sealing ring comprising a plurality of sealing lips and machine element arrangement |
| CN109296647A (en) * | 2018-09-27 | 2019-02-01 | 中浙高铁轴承有限公司 | A kind of deep groove ball bearing seal assembly |
-
2008
- 2008-04-23 CN CNA2008100240103A patent/CN101265949A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174752A (en) * | 2013-03-29 | 2013-06-26 | 山东华泰轴承制造有限公司 | High-reliability compound sealing structure for spindle bearing and processing technology |
| DE102016220390A1 (en) * | 2016-10-18 | 2018-04-19 | Schaeffler Technologies AG & Co. KG | Sealing arrangement with a sealing ring comprising a plurality of sealing lips and machine element arrangement |
| CN109296647A (en) * | 2018-09-27 | 2019-02-01 | 中浙高铁轴承有限公司 | A kind of deep groove ball bearing seal assembly |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080917 |