CN104455455A - Bearing sealing piece - Google Patents
Bearing sealing piece Download PDFInfo
- Publication number
- CN104455455A CN104455455A CN201410738265.1A CN201410738265A CN104455455A CN 104455455 A CN104455455 A CN 104455455A CN 201410738265 A CN201410738265 A CN 201410738265A CN 104455455 A CN104455455 A CN 104455455A
- Authority
- CN
- China
- Prior art keywords
- sealing
- lip
- bearing
- sealing piece
- spring
- 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
Links
Classifications
-
- 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
- F16J15/322—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip supported in a direction perpendicular to the surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a bearing sealing piece. The bearing sealing piece comprises a sealing piece body, sealing lips and a spring, wherein the sealing lips comprise a main lip and an auxiliary lip; the main lip and the auxiliary lip are respectively positioned on left and right sides of the sealing piece body; the self-locking spring is arranged on the main lip. As the sealing piece is provided with the two sealing lips, and the self-locking spring is arranged on the main lip, no matter the pressure on each of the internal and external sides of the sealing lips is higher, the sealing lip on one side can be forced to fasten a rotating shaft; moreover, the sealing piece can actively compensate the abrasion caused by the relative movement between the sealing lips and the rotating shaft under the adjustment effect of the self-locking spring, and reliable sealing is achieved, so that service lives of the sealing piece and a bearing are prolonged.
Description
Technical field
The present invention relates to mechanical design field, particularly a kind of bearing seal.
Background technique
Install bearing on the rotary shaft, rotary shaft lip seal-Nei Bao matrix type leather cup sealing member is generally selected in its sealing, and main material is all kinds of rubber, and has steel skeleton.In a free state, its internal diameter is less than the diameter of axle, has certain magnitude of interference.After loading onto, the pressure of its lip and the contractile force of self-tightening spring produce certain enclasping force to seal shaft, and gap is revealed in blocking, reaches the object of sealing.This Sealing relies on resiliently deformable to reach sealing effect, and in the course of the work because bearing portion temperature and pressure is all in continuous change, the resiliently deformable that Sealing lip position produces also can be inconsistent.Be out of shape large position good sealing effect, it is then weaker to be out of shape little position sealing effect.When the shaft is rotated, the heat that bearing rotary produces makes the air pressure of bearing bore rise, and higher than the pressure in the external world, at this moment lip holds rotatingshaft tightly under air pressure and the effect of spring bilayer, lubricant oil in bearing bore can not leak, and simultaneously extraneous dust also can not enter bearing bore along with the effect of air-flow.But in stopping process; air pressure in bearing bore diminishes along with the decline of temperature; extraneous air pressure can be greater than the air pressure in bearing bore; dust in delivery chute can force Sealing lip weaker place to be unclamped along with air-flow; enter bearing bore; in the course of time, the impurity in bearing bore can increase the frictional force of bearing, until bearing is scrapped.Meanwhile, owing to not blocking on the surface of contact of Sealing and axle, the dust be full of between Sealing and axle also can accelerate the wearing and tearing of Sealing and axle.
summary of the invention
The object of the invention is the deficiency overcoming existing structure, provide a kind of structure simple, can effectively solve because inner and outer air pressure changes the Sealing causing bearing seal effect bad.
For solving the problems of the technologies described above, present invention employs a kind of bearing seal, comprise seal body, sealing lip and spring, described sealing lip comprises main lip and secondary lip, described main lip and secondary lip lay respectively at the left and right sides of seal body one end, and described main lip is provided with spring.
As a further improvement on the present invention, described spring is self-tightening spring.
The beneficial effect that the present invention has: because the seal is with two sealing lips, and be all provided with self-tightening spring on main lip, so no matter the pressure on sealing lip which limit inside and outside is large, and the sealing lip that can force holds running shaft tightly; Further, under the regulating action of self-tightening spring, the wearing and tearing that Sealing energy Active Compensation produces due to sealing lip and running shaft relative movement, reach reliable sealing, thus greatly enhance the working life of Sealing self and bearing.
Accompanying drawing explanation
Fig. 1 is Sealing assembly structure schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
In figure: 1, running shaft; 2, Sealing; 3, bearing support; 4, bearing; 21, seal body; 22, main lip; 23, secondary lip; 24, spring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Fig. 1, bearing 4 is arranged on running shaft 1, and Sealing 2 is arranged on running shaft 1, bearing 4 and bearing
In the cavity that seat 3 is formed, the outer ring of Sealing 2 is close on the inwall of bearing support 3, the inner ring of Sealing 2 is enclosed within running shaft 1, thus bearing support 3, between Sealing 2 and running shaft 1 formed sealing, so both effectively can prevent the leakage of bearing oil, entering of extraneous dust can have been prevented again.
As Fig. 2 is depicted as a kind of bearing seal, comprise seal body 21, sealing lip and spring 24, described sealing lip
Comprise main lip 22 and secondary lip 23, described main lip 22 and secondary lip 23 lay respectively at the left and right sides of seal body 21, and described main lip 22 is provided with spring 24.Its medi-spring 24 can adopt self-tightening spring.So no matter the pressure on sealing lip which limit inside and outside is large, and the sealing lip that can force holds running shaft 1 tightly; Further, under the regulating action of self-tightening spring 24, the wearing and tearing that Sealing 2 energy Active Compensation produces due to sealing lip and running shaft 1 relative movement, reach reliable sealing, thus greatly enhance the working life of Sealing 2 self and bearing 4.
Above-described embodiment does not limit the present invention in any form, the technological scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops on protection scope of the present invention.
Claims (2)
1. a bearing seal, comprise seal body (21), sealing lip and spring (24), it is characterized in that: described sealing lip comprises main lip (22) and secondary lip (23), described main lip (22) and secondary lip (23) lay respectively at the left and right sides of seal body (21) one end, and described main lip (22) is provided with spring (24).
2. the bearing seal as described in claim 1, is characterized in that: described spring (24) is self-tightening spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738265.1A CN104455455A (en) | 2014-12-06 | 2014-12-06 | Bearing sealing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738265.1A CN104455455A (en) | 2014-12-06 | 2014-12-06 | Bearing sealing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455455A true CN104455455A (en) | 2015-03-25 |
Family
ID=52901980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738265.1A Pending CN104455455A (en) | 2014-12-06 | 2014-12-06 | Bearing sealing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108994A (en) * | 2015-09-16 | 2015-12-02 | 成都爆米花信息技术有限公司 | Rubber thread pipe extruder |
| CN110159660A (en) * | 2019-05-09 | 2019-08-23 | 宁波丰茂远东橡胶有限公司 | A kind of oil enveloping structure of high-speed train bearing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070290448A1 (en) * | 2004-01-23 | 2007-12-20 | Konrad Roeingh | Device for Sealing the Ball Side of a Bearing of a Roller Stud |
| CN201487211U (en) * | 2009-07-17 | 2010-05-26 | 青岛开世密封工业有限公司 | Bearing combination oil seal |
| CN202209422U (en) * | 2011-07-12 | 2012-05-02 | 龙口市飞轮汽车配件有限责任公司 | Bearing oil seal |
| CN103423458A (en) * | 2013-07-16 | 2013-12-04 | 成都兴宇精密铸造有限公司 | Bearing sealing member |
-
2014
- 2014-12-06 CN CN201410738265.1A patent/CN104455455A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070290448A1 (en) * | 2004-01-23 | 2007-12-20 | Konrad Roeingh | Device for Sealing the Ball Side of a Bearing of a Roller Stud |
| CN201487211U (en) * | 2009-07-17 | 2010-05-26 | 青岛开世密封工业有限公司 | Bearing combination oil seal |
| CN202209422U (en) * | 2011-07-12 | 2012-05-02 | 龙口市飞轮汽车配件有限责任公司 | Bearing oil seal |
| CN103423458A (en) * | 2013-07-16 | 2013-12-04 | 成都兴宇精密铸造有限公司 | Bearing sealing member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108994A (en) * | 2015-09-16 | 2015-12-02 | 成都爆米花信息技术有限公司 | Rubber thread pipe extruder |
| CN110159660A (en) * | 2019-05-09 | 2019-08-23 | 宁波丰茂远东橡胶有限公司 | A kind of oil enveloping structure of high-speed train bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |