CN203548918U - Rear wheel combined type rotary oil seal - Google Patents
Rear wheel combined type rotary oil seal Download PDFInfo
- Publication number
- CN203548918U CN203548918U CN201320709329.6U CN201320709329U CN203548918U CN 203548918 U CN203548918 U CN 203548918U CN 201320709329 U CN201320709329 U CN 201320709329U CN 203548918 U CN203548918 U CN 203548918U
- Authority
- CN
- China
- Prior art keywords
- oil sealing
- main
- oil seal
- rear wheel
- combined type
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 83
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 13
- 239000011737 fluorine Substances 0.000 claims description 13
- 229910052731 fluorine Inorganic materials 0.000 claims description 13
- 238000009432 framing Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 79
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Abstract
The utility model relates to a rear wheel combined type rotary oil seal. The rear wheel combined type rotary oil seal comprises a main oil seal and a secondary oil seal, wherein the main oil seal comprises a main framework, a main fluoride rubber body and a spring, the secondary oil seal is formed by directly injecting fluoride rubber at the upper portion of a secondary framework, and the secondary oil seal is pressed into the inner wall of an inner barrel part of the main framework of the main oil seal in a tight matching mode through the secondary framework to form an integrated structure that the main oil seal and the secondary oil seal are assembled in an interference rigidity close fit mode. The rear wheel combined type rotary oil seal has the advantages of being convenient to assemble, capable of keeping the shape, good in following performance and good in sealing effect, and is suitable for being used on a rear wheel hub with the modified load capacity of a rear axle of a car.
Description
Technical field
The utility model relates to a kind of Sealing, specifically, relates to the trailing wheel Assembled rotary oil sealing that a kind of main oil sealing and secondary oil sealing are combined into one structure.
Background technique
Industry high speed development and the strong contour aspect of performance development of carrying capacity along with automobile, requirement for bearing capacity to bearing is larger, only have the width that strengthens bearing just can make bearing capacity strengthen, the width of the trailing wheel oil sealing after widening must correspondingly reduce, dual-oil seal cannot be loaded, can only assemble single oil sealing, make the performance requirement of oil sealing harsher, as common single oil sealing cannot be kept out the scum of external muddy water and inner pollution lubricating oil, after automobile use certain hour, external sewage and scum are easy to destroy the main lip of oil sealing, make oil sealing occur leakage of oil.
Summary of the invention
The purpose of this utility model is for above-mentioned existing problems, provide a kind of easy to assembly, can keep that the shape of oil sealing own, trace performance are good, the good trailing wheel Assembled rotary of sealing effect oil sealing.
The purpose of this utility model is to realize like this, there is main oil sealing and secondary oil sealing, main oil sealing comprises main framing, main fluorine rubber body and spring, secondary oil sealing is on the top of secondary skeleton, directly to note to press fluorine rubber body to form, and secondary oil sealing is pressed into the main framing of the main oil sealing inwall of inner cylinder portion by its secondary skeleton close-fitting forms the integrative-structure that main oil sealing and secondary oil sealing interference rigidity drive fit are assembled.
The utility model, main oil sealing is provided with two-pack lip.
The utility model, the drive fit assembling magnitude of interference of the secondary skeleton of secondary oil sealing and the main framing of main oil sealing is between 0.01 ~ 0.05mm.
The utility model, has following advantages:
1), original vehicle bridge company to install inside and outside oil sealing each once, the utility model improves vehicle bridge company oil sealing Assembling Production efficiency 30%, reduces once assembling;
2), cannot observe with the parallelism of end face after the assembling of original two oil sealings, after trailing wheel Assembled rotary oil sealing assembling of the present utility model, parallelism quality workman is easy to observe differentiation;
3), change the width of little oil sealing, the bearing of trailing wheel is widened, and the width of wheel hub is not widened, and makes automotive axle factory not need to increase the carrying capacity that improves back axle under cost feelings;
4), main oil sealing and secondary oil sealing rubber adopts thermostable fluorine rubber, while being conducive to automobile overload like this, high temperature makes ageing of rubber, fluorine rubber heatproof can, up to 250 ℃, can meet automobile overload usage requirement;
5), the sealing of main oil-seal outer is adopted as and rubber-coatedly as cylindrical, seals; Do not need to beat sealer, for vehicle bridge company saves sealer and work time cost.
The utility model, have easy to assembly, can keep that the shape of oil sealing own, trace performance are good, the good advantage of sealing effect, be applicable to the rear wheel boss shaft that automobile axle improves carrying capacity and use.
Embodiment is further described the utility model by reference to the accompanying drawings below.
Accompanying drawing explanation
Fig. 1 is an embodiment's of the present utility model structural representation.
In figure, 1, secondary skeleton; 2, fluorine rubber body; 3, spring; 4, main fluorine rubber body; 5, main framing; 6, the inner cylinder portion of main framing; 7, two-pack lip.
Embodiment
With reference to Fig. 1, the present embodiment is a kind of trailing wheel Assembled rotary oil sealing, there is main oil sealing and secondary oil sealing, main oil sealing comprises main framing 5, main fluorine rubber body 4 and spring 3, secondary oil sealing is on the top of secondary skeleton 1, directly to note to press fluorine rubber body 2 to form, and secondary oil sealing is pressed into the main framing of the main oil sealing inwall of inner cylinder portion 6 by its secondary skeleton close-fitting forms the integrative-structure that main oil sealing and secondary oil sealing interference rigidity drive fit are assembled; Main oil sealing is provided with two-pack lip 7; The drive fit assembling magnitude of interference of the secondary secondary skeleton of oil sealing and the main framing of main oil sealing is 0.03mm.
The utility model, main oil seal structure: the main rubber of main oil sealing is high temperature fluorine rubber, its performance is high temperature resistant reaches 250 ℃, situation lower whorl bearing temperature at automobile overload sharply raises, make oil temperature surpass 200 ℃, common fluorine rubber cannot guarantee the performance of rubber, is easy to ageing of rubber and produces lip be full of cracks and leakage of oil, make the high temperature fluorine rubber of newly joining can meet the requirement of automobile overload, thereby reach the working life that extends oil sealing.
The utility model; the secondary lip of main oil sealing has two-pack lip; common temperature envelope is single secondary lip; the external muddy water of the secondary lip of common oil sealing list is easy to enter main lip, and lip is relative with axle to wear and tear and leakage of oil while rubbing soon, the intrusion with regard to solving external muddy water during two-pack lip of the present utility model; when external muddy water is invaded first secondary lip; also have second secondary lip to block into less than main lip position, oil seal lip is played a protective role, thus the working life of prolongation oil sealing.
The utility model, main oil-seal outer Front-end Design becomes guiding length, and oil seal pressing Front oil seal is put into hole, and guiding position enters hole, guarantees to press-fit Rear oil seal end face concordant with the end face in hole, the early stage leakage of oil thereby minimizing oil sealing tilts.
The utility model, the lip of secondary oil sealing and the magnitude of interference of axle are the lip effect that 0.5mm is conducive to protect main oil sealing in the assembly process of oil sealing and axle.In the process of using; gear is meshed in process and is easy to produce iron sand grain; also having axle housing is mostly foundry goods; the inside has a lot of sand grains to remove; after use a period of time, in lubricant oil, have a lot of sand grains, the lip of secondary oil sealing has blocked, and enters the lips and teeth place less than main oil sealing; protect main oil seal lip, thereby extend the working life of oil sealing.
The utility model, the lip of main oil sealing and secondary oil sealing adopts the cutting of edge cutter tilt fixing to form, and guarantees the sharp-pointed of oil seal lip, the lip that most of oil sealing adopts mold pressing to form, the lip that mold pressing forms easily causes lip sharp-pointed or have a dirty mould defect.
The utility model, main oil sealing has been used rigidity to contact with secondary oil sealing assembling, and easily dress just, is not easy again to run out of, and magnitude of interference is 0.03mm.
Back axle rear-wheel bearing of the present utility model is widened the trailing wheel oil sealing that improves carrying capacity, substantially exceeding previously used various dual-oil seal working life, is to improve at present Sealing Performance of Oil Seal that automobile improves carrying capacity, extend the oil sealing a kind of desirable trailing wheel oil sealing in working life.
Claims (3)
1. a trailing wheel Assembled rotary oil sealing, it is characterized in that: there is main oil sealing and secondary oil sealing, described main oil sealing comprises main framing (5), main fluorine rubber body (4) and spring (3), described secondary oil sealing is on the top of secondary skeleton (1), directly to note to press fluorine rubber body (2) to form, and the inwall that described secondary oil sealing is pressed into the inner cylinder portion (6) of the main framing of main oil sealing by its secondary skeleton close-fitting forms the integrative-structure that main oil sealing and secondary oil sealing interference rigidity drive fit are assembled.
2. trailing wheel Assembled rotary oil sealing according to claim 1, is characterized in that: described main oil sealing is provided with two-pack lip (7).
3. trailing wheel Assembled rotary oil sealing according to claim 1 and 2, is characterized in that: the drive fit assembling magnitude of interference of the secondary skeleton of described secondary oil sealing and the main framing of main oil sealing is between 0.01 ~ 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709329.6U CN203548918U (en) | 2013-11-10 | 2013-11-10 | Rear wheel combined type rotary oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709329.6U CN203548918U (en) | 2013-11-10 | 2013-11-10 | Rear wheel combined type rotary oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548918U true CN203548918U (en) | 2014-04-16 |
Family
ID=50467038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320709329.6U Expired - Lifetime CN203548918U (en) | 2013-11-10 | 2013-11-10 | Rear wheel combined type rotary oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548918U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763810A (en) * | 2014-07-25 | 2015-07-08 | 栾乔根 | Lip-shaped framework seal ring |
| CN107606167A (en) * | 2017-08-11 | 2018-01-19 | 徐州华通浮动油封科技有限公司 | A kind of rotary oil seal |
| CN110307339A (en) * | 2019-06-04 | 2019-10-08 | 中国北方车辆研究所 | A kind of Combined oil-gas seal device |
| CN111043316A (en) * | 2019-12-23 | 2020-04-21 | 西北橡胶塑料研究设计院有限公司 | Combined double-lip oil seal for miniature gear pump |
-
2013
- 2013-11-10 CN CN201320709329.6U patent/CN203548918U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763810A (en) * | 2014-07-25 | 2015-07-08 | 栾乔根 | Lip-shaped framework seal ring |
| CN107606167A (en) * | 2017-08-11 | 2018-01-19 | 徐州华通浮动油封科技有限公司 | A kind of rotary oil seal |
| CN110307339A (en) * | 2019-06-04 | 2019-10-08 | 中国北方车辆研究所 | A kind of Combined oil-gas seal device |
| CN111043316A (en) * | 2019-12-23 | 2020-04-21 | 西北橡胶塑料研究设计院有限公司 | Combined double-lip oil seal for miniature gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |