CN2908904Y - Bearing sealing device of electromagnetic clutch - Google Patents
Bearing sealing device of electromagnetic clutch Download PDFInfo
- Publication number
- CN2908904Y CN2908904Y CNU2006200833321U CN200620083332U CN2908904Y CN 2908904 Y CN2908904 Y CN 2908904Y CN U2006200833321 U CNU2006200833321 U CN U2006200833321U CN 200620083332 U CN200620083332 U CN 200620083332U CN 2908904 Y CN2908904 Y CN 2908904Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- lip
- seal
- sealing
- seal groove
- 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.)
- Expired - Lifetime
Links
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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/08—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
In an electromagnetic clutch bearing seal device, an elastic seal ring is tightly fit in a seal groove of a bearing outer race by excircle. L-shaped subsidiary seal groove is arranged on inner side of a primary seal groove of bearing inner race; a third sealing lip on inner circle of the seal ring is clearance fit with the subsidiary seal groove with guide surface top below a capped edge of the bearing inner race; tip of the a primary sealing lip touches a concave primary seal groove on inner race of the bearing; root of a subsidiary sealing lip is connected to lateral wall of the sealing lip; tip of the subsidiary sealing lip is opposite to sealing capped edge on inner race of the bearing. The device can effectively divide flow of lubricant; the subsidiary sealing lip is linked with and driven by the primary sealing lip, a sealing lip always touches the capped edge of the bearing seal with excellent sealing effect and service life of the bearing is improved.
Description
(1) technical field
The utility model relates to a kind of improved associated sealing arrangement for bearings, definite a kind of bearing sealing device of electromagnetic clutch of saying so.
(2) background technique
The electromagnetic clutch bearing of prior art is that bearing sealed ring is installed in the bearing both sides, in order to prevent that lubriation material in the bearing from revealing and the exterior materials intrusion.Be subjected to the influence of machining accuracy and the wearing and tearing of work, make sealing lip easily separate and form the gap, destroy sealing with the bearing inner race seal groove.A kind of electromagnetic clutch of automobile air conditioner compressor holds, the patent No. is 2004200724645, disclosing the primary seal lip on the internal diameter of the seal ring contacts with bearing inner race sealing rib, leave the technology in gap between auxiliary seal lip and bearing inner race sealing rib, be in when bearing under the situation of high speed rotating, lubriation material directly impacts primary seal lip, strengthen its degree of wear, make primary seal lip easily separate and form the gap with bearing inner race sealing rib, and auxiliary seal lip and bearing inner race rib have been Spielpassung, destroy sealing easily.The patent No. 952012693 disclosed bearing contact type high-efficiency seal structures, though have and the long gap sealed epipharynx of inner ring rib, lubriation material guide of flow face is arranged again, but lubriation material is easy to flow in the stable cavity by its gap under the situation of high speed rotating, increased the sealing load of outer lip, outer lip seal is damaged easily.
(3) summary of the invention
The purpose of this utility model is in order to overcome above-mentioned technical disadvantages, to provide a kind of and can effectively shunt lubriation material, and primary seal lip and auxiliary seal lip are associated and servo-actuated, the bearing sealing device of electromagnetic clutch that always has a sealing lip to contact with the bearing seal rib.
In order to realize the purpose of above-mentioned technical problem, the technical solution of the utility model is: a kind of bearing sealing device of electromagnetic clutch, being installed in the bearing outer ring seal groove 8 of the cylindrical interference fit of elastic seal ring 6, primary seal lip 7 and auxiliary seal lip 4 are arranged on the interior circle of seal ring 6, it is characterized in that L type auxiliary seal groove 11 inboards at bearing inner race primary seal groove 9, the 3rd sealing lip 12 and auxiliary seal groove 11 Spielpassung in the seal ring 6 on the circle, its guide surface top is lower than the bearing inner race rib; The end of primary seal lip 7 contacts with spill primary seal groove 9 on the inner ring of bearing; The root of auxiliary seal lip 4 is connected on the outer side wall of primary seal lip 7; The end of auxiliary seal lip 4 is relative with sealing rib 5 on the inner ring of bearing.
The cylindrical of elastic seal ring 6 is pressed into by fashion of extrusion in the seal groove 8 on the outer ring of bearing and is fixed, and both can not produce and move or slide.L type auxiliary seal groove 11 is positioned at the inboard of primary seal groove 9, following working surface Spielpassung with the 3rd sealing lip 12 of primary seal lip 7 inboards, the 3rd sealing lip 12 is to the inner extension of bearing, above it is acclivitous, it is guide surface, the top be lower than the bearing inner race rib, the top of guide surface and auxiliary seal groove 11 sidewalls have slight gap, so high pressure that produces during work, the lubriation material of high temperature flows along the 3rd sealing lip 12 acclivitous guide surfaces, have only slight lubriation material to be filled into the 3rd sealing lip 12 and auxiliary seal groove 11 matching gaps from the gap that is lower than the bearing inner race rib, not only can not form and damage, form tight sealing again primary seal lip 7.Flexible primary seal lip 7 ends contact primary seal groove 9 makes primary seal lip 7 around its root torsional deflection, leaves sealing rib 5 and drive auxiliary seal lip 4 ends that are fixed on its sidewall, and forms Spielpassung.Flexible effect makes primary seal lip 7 can well contact primary seal groove 9 and forms the sealing of pressing formula, end wear along with primary seal lip 7, primary seal lip 7 drives auxiliary seal lip 4 ends and dwindles gradually with the gap that seals rib 5, when the end of primary seal lip 7 can not contact primary seal groove 9, auxiliary seal lip 4 ends contact with sealing rib 5, still make the inside and outside sealed isolation of bearing.
Seal ring 6 is made by elastic material, and rigid backbone 3 is inlayed in inside.Rigid backbone 3 has been inlayed in the inside of seal ring 6, has strengthened its intensity.
The guide surface of the 3rd sealing lip 12 angle that is upturned from the end is 10 °-25 °.
The madial wall end of primary seal lip 7 contacts with U type primary seal groove 9 sidewalls.
The outer side wall of primary seal lip 7 becomes 60 ° of-75 ° of angles with bearing axis.
The utility model has the advantages that: adopt three sealing lips effectively to shunt lubriation material, strengthened sealing effect, prolonged the working life of bearing.The auxiliary seal lip root of seal ring is connected on the outer side wall of elasticity primary seal lip, auxiliary seal lip and primary seal lip are associated and servo-actuated, a sealing lip and the bearing sealed ring that the bearing seal rib contacts are always arranged, make that bearing is inside and outside is isolated, realize sealing bearing.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
(5) embodiment
Seal ring shown in the figure 6 is made by rubber, and Steel Skeleton 3 is inlayed in inside.The cylindrical 10 of seal ring 6 and seal groove 8 interference fit of bearing outer ring 1.The 3rd sealing lip 12, primary seal lip 7 and auxiliary seal lip 4 are arranged on the interior circle of seal ring 6 from inside to outside.L type auxiliary seal groove 11 is in the inboard of the primary seal groove 9 of bearing inner race 2, and it is lower than the rib of bearing inner race 2.The following working surface of the 3rd sealing lip 12 and auxiliary seal groove 11 Spielpassung, the 3rd sealing lip 12 is to the inner extension of bearing, the top of its acclivitous guide surface is lower than the rib of bearing inner race 2, the top of guide surface and auxiliary seal groove 11 sidewalls have slight gap, allow to fill slight lubriation material between the 3rd sealing lip 12 and the auxiliary seal groove 11, form tight sealing, both actings in conjunction stop the leakage of lubriation material.The end of the madial wall of primary seal lip 7 contacts with trapezoidal primary seal groove 9 sidewalls on the inner ring of bearing 2, forms the sealing of pressing formula.The root of auxiliary seal lip 4 is connected on the outer side wall of primary seal lip 7, and the end of auxiliary seal lip 4 is relative with sealing rib 5 on the inner ring of bearing 2, and both become gapped cooperation during proper functioning.The root of the 3rd sealing lip 12 is on the top of primary seal lip 7 madial walls.Under seal ring 6 elastic reactions, primary seal lip 7 can be around its root torsional deflection.The guide surface of the 3rd sealing lip 12 angle that is upturned from the end is 20 °, and the main effect of this angle is to reduce the resistance that lubriation material flows, and the guiding lubriation material flows along guide surface.The outer side wall of primary seal lip 7 becomes 65 ° of angles with bearing axis.
Claims (5)
1, a kind of bearing sealing device of electromagnetic clutch, being installed in the bearing outer ring seal groove (8) of the cylindrical interference fit of elastic seal ring (6), primary seal lip (7) and auxiliary seal lip (4) are arranged on the interior circle of seal ring (6), it is characterized in that the inboard of L type auxiliary seal groove (11) at bearing inner race primary seal groove (9), the 3rd sealing lip (12) in the seal ring (6) on the circle and auxiliary seal groove (11) Spielpassung, its guide surface top is lower than the bearing inner race rib; The end of primary seal lip (7) contacts with spill primary seal groove (9) on the inner ring of bearing; The root of auxiliary seal lip (4) is connected on the outer side wall of primary seal lip (7); The end of auxiliary seal lip (4) is relative with sealing rib (5) on the inner ring of bearing.
2, bearing sealing device of electromagnetic clutch according to claim 1 is characterized in that seal ring (6) made by elastic material, and rigid backbone (3) is inlayed in inside.
3, bearing sealing device of electromagnetic clutch according to claim 1, the guide surface that it is characterized in that the 3rd sealing lip (12) angle that is upturned from the end is 10 °-25 °.
4, bearing sealing device of electromagnetic clutch according to claim 1 is characterized in that the madial wall end of primary seal lip (7) contacts with U type primary seal groove (9) sidewall.
5,, it is characterized in that the outer side wall of primary seal lip (7) becomes 60 ° of-75 ° of angles with bearing axis according to claim 1 or 4 described bearing sealing device of electromagnetic clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200833321U CN2908904Y (en) | 2006-04-20 | 2006-04-20 | Bearing sealing device of electromagnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200833321U CN2908904Y (en) | 2006-04-20 | 2006-04-20 | Bearing sealing device of electromagnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2908904Y true CN2908904Y (en) | 2007-06-06 |
Family
ID=38128115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200833321U Expired - Lifetime CN2908904Y (en) | 2006-04-20 | 2006-04-20 | Bearing sealing device of electromagnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2908904Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457792B (en) * | 2007-12-13 | 2011-01-05 | 陈炳顺 | Half-contact and half-non-contact seal structure for bearing |
| CN101701606B (en) * | 2009-11-13 | 2012-05-16 | 青岛泰德汽车轴承有限责任公司 | Bearing sealing device of electromagnetic clutch of automobile air conditioner compressor |
| CN105090252A (en) * | 2014-05-06 | 2015-11-25 | 襄阳汽车轴承股份有限公司 | Double-column cylindrical roller bearing with sealing function |
| US20220128093A1 (en) * | 2019-02-14 | 2022-04-28 | Nsk Ltd. | Rolling bearing |
-
2006
- 2006-04-20 CN CNU2006200833321U patent/CN2908904Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457792B (en) * | 2007-12-13 | 2011-01-05 | 陈炳顺 | Half-contact and half-non-contact seal structure for bearing |
| CN101701606B (en) * | 2009-11-13 | 2012-05-16 | 青岛泰德汽车轴承有限责任公司 | Bearing sealing device of electromagnetic clutch of automobile air conditioner compressor |
| CN105090252A (en) * | 2014-05-06 | 2015-11-25 | 襄阳汽车轴承股份有限公司 | Double-column cylindrical roller bearing with sealing function |
| US20220128093A1 (en) * | 2019-02-14 | 2022-04-28 | Nsk Ltd. | Rolling bearing |
| US11788580B2 (en) * | 2019-02-14 | 2023-10-17 | Nsk Ltd. | Rolling bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xinghua Road, Licang District of Shandong Province, Qingdao City, No. 10, 266041 Patentee after: Qingdao Taide Automobile Bearing Co., Ltd. Address before: Xinghua Road, Licang District of Shandong Province, Qingdao City, No. 10, 266041 Patentee before: Qingdao Taide Automobile Bearing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070606 |
|
| EXPY | Termination of patent right or utility model |