CN211145304U - Novel differential mechanism inner oil seal of four-wheel drive gearbox - Google Patents
Novel differential mechanism inner oil seal of four-wheel drive gearbox Download PDFInfo
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- CN211145304U CN211145304U CN201921733357.5U CN201921733357U CN211145304U CN 211145304 U CN211145304 U CN 211145304U CN 201921733357 U CN201921733357 U CN 201921733357U CN 211145304 U CN211145304 U CN 211145304U
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- main lip
- metal framework
- lip
- oil seal
- shape metal
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Abstract
The utility model provides a novel oil blanket in differential mechanism of four-wheel drive gearbox, this oil blanket in differential mechanism comprise F shape metal framework, rubber pad, dust lip, main lip and spring, dust lip and main lip integrated into one piece just locate F shape metal framework's inboard, install in the outside of main lip the spring, the rubber pad is located F shape metal framework's the outside, the one end that main lip was kept away from to F shape metal framework is established to anticollision portion, the one end that the rubber pad was kept away from to anticollision portion is established to the guide part, the guide part establish to the conical surface of main lip direction slope. The utility model can bear the impact caused by the eccentric assembly of the half shaft by arranging the anti-collision part, thereby effectively preventing the main lip of the oil seal from being collided and damaged by the half shaft, reducing the failure rate of the oil seal and improving the qualification rate of the product in the assembly process; meanwhile, the guide part is arranged, so that the guide function and the main lip protection function can be realized in the half shaft assembling process.
Description
Technical Field
The utility model belongs to the technical field of the gearbox, specifically relate to a novel oil blanket in differential mechanism of four-wheel drive gearbox.
Background
At present, the sealing principle of an oil seal in a differential in a four-wheel drive transmission on the market is that a main lip of the oil seal and a half shaft form dynamic seal, so that the requirement on the main lip of the oil seal is high.
When the right half shaft of a four-wheel drive vehicle is assembled in the existing host factory, the transfer case needs to be assembled with the four-wheel drive gearbox firstly, so that the right half shaft needs to penetrate through the transfer case firstly and then penetrate through an inner oil seal of a differential mechanism of the four-wheel drive gearbox. The assembly mode leads to the fact that an oil seal protective sleeve cannot be used for protecting the main lip of the oil seal; meanwhile, the half shaft on the right side is longer, and the half shaft is easy to deviate from the center in the assembling process, so that the end face of a half shaft spline is easy to knock or damage a main lip of an oil seal in the differential, and oil leakage at the oil seal in the differential of the four-wheel drive transmission is caused.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned prior art, the to-be-solved technical problem of the utility model lies in providing a can protect oil blanket main lip's novel differential mechanism inner oil blanket of four-wheel drive gearbox.
In order to solve the technical problem, the utility model provides a novel oil blanket in differential mechanism of four-wheel drive gearbox, this oil blanket in differential mechanism comprises F shape metal framework, rubber pad, dust lip, main lip and spring, dust lip and main lip integrated into one piece just locate F shape metal framework's inboard, install in the outside of main lip the spring, the rubber pad is located F shape metal framework's the outside, the one end that main lip was kept away from to F shape metal framework is established to anticollision portion, the one end that the rubber pad was kept away from to anticollision portion is established to the guide part, the guide part establish to the conical surface of main lip direction slope.
Compared with the prior art, the beneficial effects of the utility model are that: the anti-collision part is arranged at one end, far away from the main lip, of the F-shaped metal framework, so that the anti-collision part can bear the impact caused by the assembly eccentricity of the half shaft, the main lip of the oil seal is effectively prevented from being collided and damaged by the half shaft, the failure rate of the oil seal is reduced, and the qualification rate of a product in the assembly process is improved; meanwhile, the guide part is arranged at one end, far away from the rubber pad, of the anti-collision part, and the guide part is a conical surface inclined towards the main lip direction, so that the guide function and the main lip protection function can be realized in the half shaft assembling process.
Drawings
Fig. 1 is a schematic structural diagram of an oil seal in a differential of a novel four-wheel drive transmission according to the embodiment.
Fig. 2 is an assembly schematic diagram of the oil seal in the differential mechanism of the novel four-wheel drive transmission of the present invention.
Illustration of the drawings: 1-F-shaped metal framework, 11-anti-collision part, 12-guide part, 2-rubber pad, 3-dustproof lip, 4-main lip, 5-spring, 7-differential shell, 8-differential inner oil seal and 9-half shaft.
Detailed Description
The invention will be further described with reference to the drawings and preferred embodiments.
The structure of the oil seal in the differential of the four-wheel drive transmission is schematically shown in fig. 1, and the oil seal 8 in the differential comprises an F-shaped metal framework 1, a rubber pad 2, a dust lip 3, a main lip 4 and a spring 5. The dustproof lip 3 and the main lip 4 are integrally formed and are arranged on the inner side of the F-shaped metal framework 1, so that the dustproof lip 3 and the main lip 4 can be in direct contact with the half shaft 9, and the dustproof lip 3 can prevent silt and dust from entering; a spring 5 is further mounted on the outer side of the main lip 4, the main lip 4 can be tightly held on the half shaft 9 by the spring 5, and dynamic sealing is formed between the main lip 4 and the half shaft 9, so that oil in the gearbox can be prevented from flowing out through the main lip 4; a rubber pad 2 is adhered to the outer side of the F-shaped metal framework 1, and the rubber pad 2 can play a role in sealing between the differential case 7 and the F-shaped metal framework 1; one end of the F-shaped metal framework 1, which is far away from the main lip 4, is provided with an anti-collision part 11, the anti-collision part 11 can be blocked in assembly when the spline end surface of the half shaft 9 contacts the anti-collision part 11 of the F-shaped metal framework 1 in the process of assembling the half shaft 9, and an operator needs to readjust the position of the half shaft 9, so that the main lip 4 can be effectively prevented from being directly impacted and damaged by the spline end surface of the half shaft 9, and the main lip 4 of the oil seal 8 in the differential mechanism is protected; the tail end of the anti-collision part 11 of the F-shaped metal framework 1 is further provided with a guide part 12, the guide part 12 is a conical surface inclined towards the main lip 4, so that the effect of protecting the main lip 4 and the effect of guiding the installation of the half shaft 9 can be achieved in the assembling process of the half shaft 9, the damage to the main lip 4 caused by the assembling eccentricity of the half shaft 9 in the assembling process of the half shaft 9 can be reduced, and the sealing performance of an oil seal is further improved.
The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (1)
1. The utility model provides a novel oil blanket in differential mechanism of four-wheel drive gearbox which characterized in that: this oil blanket is constituteed by F shape metal framework (1), rubber pad (2), dust lip (3), main lip (4) and spring (5), dust lip (3) and main lip (4) integrated into one piece just locate the inboard of F shape metal framework (1), install in the outside of main lip (4) spring (5), rubber pad (2) are located the outside of F shape metal framework (1), the one end that main lip (4) were kept away from in F shape metal framework (1) is established to anticollision portion (11), the one end that rubber pad (2) were kept away from in anticollision portion (11) is established to guide part (12), guide part (12) establish to the conical surface of main lip (4) direction slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733357.5U CN211145304U (en) | 2019-10-16 | 2019-10-16 | Novel differential mechanism inner oil seal of four-wheel drive gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733357.5U CN211145304U (en) | 2019-10-16 | 2019-10-16 | Novel differential mechanism inner oil seal of four-wheel drive gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145304U true CN211145304U (en) | 2020-07-31 |
Family
ID=71769264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921733357.5U Active CN211145304U (en) | 2019-10-16 | 2019-10-16 | Novel differential mechanism inner oil seal of four-wheel drive gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145304U (en) |
-
2019
- 2019-10-16 CN CN201921733357.5U patent/CN211145304U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 169, Meilin street, economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee after: Magna powertrain (Jiangxi) Co.,Ltd. Address before: No. 169, Meilin street, Changbei Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: GETRAG (JIANGXI) TRANSMISSION Co.,Ltd. |