CN202790543U - Oil seal of tractor hub - Google Patents
Oil seal of tractor hub Download PDFInfo
- Publication number
- CN202790543U CN202790543U CN201220357953XU CN201220357953U CN202790543U CN 202790543 U CN202790543 U CN 202790543U CN 201220357953X U CN201220357953X U CN 201220357953XU CN 201220357953 U CN201220357953 U CN 201220357953U CN 202790543 U CN202790543 U CN 202790543U
- Authority
- CN
- China
- Prior art keywords
- oil seal
- seal
- lip
- dust excluder
- excluder 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.)
- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses an oil seal of a tractor hub, and relates to the tractor hub sealing technology. The oil seal is of a split combination structure combined by an outer oil seal and an inner oil seal. An inner oil seal frame is arranged on the inner oil seal, an outer oil seal frame, an outer oil seal spring, a main seal lip and a dustproof lip are arranged on the outer oil seal, the dustproof lip is provided with a main dustproof lip, a first auxiliary dustproof lip and a second auxiliary dustproof lip, and the outer oil seal spring is arranged on the outer side of the main seal lip. As the oil seal of the tractor hub is provided with three dustproof lips in design, external mud water, sand and dust are prevented from entering a sealed cavity of the oil seal to abrade a seal shaft, the service life of the seal shaft is prolonged, and sealing performance and stability of the oil seal are improved. Accordingly, the oil seal is dustproof, good in oil leakage prevention, long in service life, convenient to assemble and high in mounting precision.
Description
Technical field
The utility model relates to tractor wheel hub sealing technique, particularly a kind of tractor hub oil seal.
Background technique
Since China reform and opening-up, national economy obtains rapid growth, has become the main flow of the present industrial development of China with " scientific and technical innovation, autonomous innovation ", and China's industry is progressively to intensive style, energy-saving and emission-reduction, the future development of low-carbon (LC).The propons kind of drive that our company produces is the same with other bridge, drives the propons main driving assembly by the transfer case assembly, transfers torque to two ends again, finally drives tyre rotation by wheel hub.To guarantee certain sealing in the 4 wheel driven propons, guarantee that the inside has certain hydraulic transmission lubricant oil to exist, just can better prolong the working life of the inside gear-bearing, and then guarantee the working life of bridge.But through using after a while; wheel hub leakage of oil situation often occurs, its main cause is that wheel hub adopts common old-fashioned oil sealing, as shown in Figure 1; the old-fashioned oil sealing of this kind is monolithic construction; only be provided with a dust excluder lips, because hub oil seal place bearing radial force is bigger than normal, adds tractor and often understand operation in the muddy water; cause herein long period of soaking in muddy water; oil sealing is easy to be worn and torn by body refuse, finally causes oil sealing to damage, and wheel hub leakage of oil situation occurs.In order to solve this difficult problem, R﹠D institution and science and technology in enterprise personnel utilize modern science and technology in constantly research, exploration, although obtained technically some progress, still exist the technical barrier that not yet overcomes in practice.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, and a kind of tractor hub oil seal is provided, and adopts split modular structure to design, this oil sealing is dustproof, good seal performance, and oil-leakage-prevention is effective, long service life, convenient for assembly in assembly process, installation precision is high.
The technological scheme that its technical problem that solves the utility model adopts is: comprise dust excluder lips, main dust excluder lips, outer oil seal, the outer oil seal skeleton, the outer oil seal spring, the primary seal lip, secondary dust excluder lips one, secondary dust excluder lips two, inner oil seal, the inner oil seal skeleton, this oil sealing is split modular structure, formed by outer oil seal and inner oil seal, wherein inner oil seal is provided with the inner oil seal skeleton, outer oil seal is provided with the outer oil seal skeleton, the outer oil seal spring, the primary seal lip, dust excluder lips, dust excluder lips is provided with main dust excluder lips, secondary dust excluder lips one, secondary dust excluder lips two, the outside of primary seal lip is provided with the outer oil seal spring.
The know-why that the utility model adopts is: adopt split modular structure to design.A kind of tractor hub oil seal is designed with three dust excluder lips, and wherein larger main dust excluder lips can remedy the axial float because of bearing and wheel hub generation, prevents that effectively outside muddy water and sand and dust from entering in the oil sealing sealing cavity; Two other secondary lip, namely secondary dust excluder lips one and secondary dust excluder lips two can further stop muddy water, the primary seal lip of protection oil sealing.The outside of primary seal lip is provided with the outer oil seal spring, by the elastic force of outer oil seal spring, axle is produced certain radially tight power, thereby plays the effect of sealing lubricating oil.The primary seal lip working surface of oil sealing adopts the highi degree of accuracy polishing treatment, prevents from destroying when rotated the primary seal lip because of the texture that Vehicle Processing produces the normal sealing usefulness of protection oil sealing sealing lip.
The utility model beneficial effect is: adopt split modular structure to design.By be designed with three dust excluder lips at oil sealing, prevent that outside muddy water and sand and dust from entering the interior wearing and tearing to seal shaft of oil sealing sealing cavity, prolonged the working life of seal shaft, improve sealing and the stability of oil sealing.This oil sealing is dustproof, and oil-leakage-prevention is effective, and long service life is convenient for assembly in assembly process, and installation precision is high.
Description of drawings
The below further describes the utility model in conjunction with the accompanying drawings and embodiments:
Fig. 1 is the structure sectional view of the old-fashioned hub oil seal of a kind of tractor
Fig. 2 is a kind of structure sectional view of tractor hub oil seal
In the drawings: 1. dust excluder lips, 2. main dust excluder lips, 3. outer oil seal, 4. outer oil seal skeleton, 5. outer oil seal spring, 6. primary seal lip, 7. secondary dust excluder lips one, 8. secondary dust excluder lips two, 9. inner oil seal, 10. inner oil seal skeleton.
Embodiment
In Fig. 2: this oil sealing is split modular structure, formed by outer oil seal 3 and inner oil seal 9, wherein inner oil seal 9 is provided with inner oil seal skeleton 10, outer oil seal 3 is provided with outer oil seal skeleton 4, outer oil seal spring 5, primary seal lip 6, dust excluder lips 1, dust excluder lips 1 is provided with main dust excluder lips 2, secondary dust excluder lips 1, secondary dust excluder lips 28, and the outside of primary seal lip 6 is provided with outer oil seal spring 5.
A kind of tractor hub oil seal adopts split modular structure to design.A kind of tractor hub oil seal is designed with three dust excluder lips 1, and wherein larger main dust excluder lips 2 can remedy the axial float because of bearing and wheel hub generation, prevents that effectively outside muddy water and sand and dust from entering in the oil sealing sealing cavity; Two other secondary lip, namely secondary dust excluder lips 1 and secondary dust excluder lips 28 can further stop muddy water, the primary seal lip 6 of protection oil sealing.The outside of primary seal lip 6 is provided with outer oil seal spring 5, by the elastic force of outer oil seal spring 5, axle is produced certain radially tight power, thereby plays the effect of sealing lubricating oil.Primary seal lip 6 working surfaces of oil sealing adopt the highi degree of accuracy polishing treatment, prevent from destroying when rotated primary seal lip 6 because of the texture that Vehicle Processing produces the normal sealing usefulness of protection oil sealing sealing lip.
Claims (1)
1. tractor hub oil seal, relate to tractor wheel hub sealing technique, comprise dust excluder lips, main dust excluder lips, outer oil seal, the outer oil seal skeleton, the outer oil seal spring, the primary seal lip, secondary dust excluder lips one, secondary dust excluder lips two, inner oil seal, the inner oil seal skeleton, it is characterized in that: this oil sealing is split modular structure, formed by outer oil seal and inner oil seal, wherein inner oil seal is provided with the inner oil seal skeleton, outer oil seal is provided with the outer oil seal skeleton, the outer oil seal spring, the primary seal lip, dust excluder lips, dust excluder lips is provided with main dust excluder lips, secondary dust excluder lips one, secondary dust excluder lips two, the outside of primary seal lip is provided with the outer oil seal spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220357953XU CN202790543U (en) | 2012-07-13 | 2012-07-13 | Oil seal of tractor hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220357953XU CN202790543U (en) | 2012-07-13 | 2012-07-13 | Oil seal of tractor hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790543U true CN202790543U (en) | 2013-03-13 |
Family
ID=47817808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220357953XU Expired - Fee Related CN202790543U (en) | 2012-07-13 | 2012-07-13 | Oil seal of tractor hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790543U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002885A (en) * | 2014-12-04 | 2017-08-01 | Nok株式会社 | Use the sealing structure of torsional balancer and oil sealing |
| CN110529600A (en) * | 2019-07-29 | 2019-12-03 | 昆山茂顺密封件工业有限公司 | A kind of resistance to play and being dismounted for multiple times vehicle axel hub oil seal |
-
2012
- 2012-07-13 CN CN201220357953XU patent/CN202790543U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002885A (en) * | 2014-12-04 | 2017-08-01 | Nok株式会社 | Use the sealing structure of torsional balancer and oil sealing |
| US10352451B2 (en) | 2014-12-04 | 2019-07-16 | Nok Corporation | Sealing structure with torsional damper and oil seal |
| CN110529600A (en) * | 2019-07-29 | 2019-12-03 | 昆山茂顺密封件工业有限公司 | A kind of resistance to play and being dismounted for multiple times vehicle axel hub oil seal |
| CN110529600B (en) * | 2019-07-29 | 2023-09-26 | 昆山茂顺密封件工业有限公司 | Anti-channeling axle hub oil seal capable of being disassembled and assembled for multiple times |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180713 |