CN220706409U - Rotary shaft lip-shaped rubber sealing ring for automobile - Google Patents
Rotary shaft lip-shaped rubber sealing ring for automobile Download PDFInfo
- Publication number
- CN220706409U CN220706409U CN202322415295.6U CN202322415295U CN220706409U CN 220706409 U CN220706409 U CN 220706409U CN 202322415295 U CN202322415295 U CN 202322415295U CN 220706409 U CN220706409 U CN 220706409U
- Authority
- CN
- China
- Prior art keywords
- lip
- sealing body
- main lip
- sealing
- ring
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 70
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to the technical field of medical equipment, in particular to a rotating shaft lip-shaped rubber sealing ring for an automobile. The utility model provides a rotating shaft lip-shaped rubber sealing ring for an automobile, which comprises the following components: a sealing body, wherein a metal framework is arranged in the sealing body; the inner ring of the sealing body is provided with the first main lip; the inner ring of the sealing body is provided with a first auxiliary lip which is positioned at the rear side of the first main lip; the front side of the sealing body is provided with a groove, and the groove is internally provided with a fastening spring; and the inner ring of the sealing body is provided with the second main lip. The rotary shaft lip-shaped sealing ring is fixed in the mounting hole, and then the rotary shaft penetrates through the sealing ring, so that the rotary shaft lip-shaped sealing ring and the shaft are sealed, the second main lip can be deformed under the action of hydraulic pressure on the oil side of the sealing body to better seal oil, and meanwhile, the contact ring can avoid abrasion of the first main lip and the second main lip and influence on subsequent sealing.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a rotating shaft lip-shaped rubber sealing ring for an automobile.
Background
The lip-shaped sealing ring of the rotating shaft is commonly called an oil seal and is used for isolating an oil cavity from the outside, preventing dust from the outside when sealing oil is sealed, and enabling the lip to be tightly attached to a sealing surface to realize sealing through deformation of the lip under the action of hydraulic force, so that the lip-shaped sealing ring is widely applied to parts such as a mechanical gearbox, a driving axle and the like, such as a main reducer, a wheel edge and the like of the driving axle.
However, most of the existing lip-shaped sealing rings are simple in structure, and mainly depend on the pressure of a medium to enter the lip of the sealing ring, so that the lip is expanded to be coupled and sealed with the sealing surface, and when the automobile gearbox device changes rapidly, the variable is large and long-time movement is required, the sealing effect is influenced by the deformation of the rotation of the rotating shaft, and even the single lip is damaged.
Therefore, it is necessary to design a rotary shaft lip rubber seal for an automobile.
Disclosure of Invention
In order to overcome the defects that the sealing effect is easily influenced and even damaged by the deformation of a single lip under the conditions of quick change, large variable and long-time movement of an automobile gearbox device of the existing lip-shaped sealing ring, the utility model has the following technical problems: a lip-shaped rubber seal ring for a rotating shaft for an automobile is provided.
A rotary shaft lip rubber seal for an automobile, comprising: the sealing device comprises a sealing body and a metal framework, wherein the metal framework is arranged in the sealing body; the inner ring of the sealing body is provided with the first main lip; the inner ring of the sealing body is provided with a first auxiliary lip which is positioned at the rear side of the first main lip; the front side of the sealing body is provided with a groove, and the groove is internally provided with a fastening spring; the inner ring of the sealing body is provided with a second main lip which is positioned at the front side of the first main lip; and the contact ring is embedded at one side of the first main lip and the second main lip, which is close to the center of the sealing body.
Further illustratively, the method further comprises: and the second auxiliary lip is arranged on the inner ring of the sealing body and is positioned between the first main lip and the second main lip.
Further illustratively, the method further comprises: and the rear side of the sealing body is provided with a shaping plate.
Further, cooling grooves are formed in the front side surface and the rear side surface of the first main lip.
Further, the contact ring has a lower elasticity than the seal body.
The utility model has the advantages that: according to the utility model, the rotary shaft lip-shaped sealing ring is fixed in the mounting hole, then the rotary shaft penetrates through the sealing ring, the rotary shaft lip-shaped sealing ring and the shaft are sealed under the action of pressure generated by the sealing ring on the shaft and the elastic force of the fastening spring, meanwhile, the second main lip on the oil side of the oblique sealing body is arranged, the oil can be better sealed under the action of the hydraulic pressure on the oil side of the sealing body, and the contact ring connected with the first main lip and the second main lip in an embedded manner can avoid abrasion of the first main lip and the second main lip after long-time use, and the influence on subsequent sealing is caused.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic perspective view of the seal and the forming plate of the present utility model.
Fig. 3 is a schematic cross-sectional view of a three-dimensional structure of the present utility model.
The reference symbols in the drawings: 1: sealing body, 2: metal skeleton, 3: first main lip, 4: first secondary lip, 5: fastening spring, 6: second main lip, 7: contact ring, 8: second auxiliary lip, 9: shaping plate, 10: and a cooling tank.
Description of the embodiments
The present utility model now will be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the utility model are shown. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
Examples
As shown in fig. 1 to 3, the utility model provides a rotating shaft lip-shaped rubber sealing ring for an automobile, which specifically comprises a sealing body 1, a metal framework 2, a first main lip 3, a fastening spring 5, a second main lip 6 and a contact ring 7, wherein the metal framework 2 is arranged in the outer diameter part of the sealing body 1 made of oil-resistant rubber, and the first main lip 3 is arranged on the inner ring of the sealing body 1; the first pair of lips 4 is installed to the inner circle of seal body 1, first pair of lips 4 is located first main lip 3 rear side, open the seal body 1 front side has the slot, be equipped with annular fastening spring 5 in the slot, fastening spring 5 encircles in the slot, second main lip 6 is installed to the inner circle of seal body 1, second main lip 6 is located first main lip 3 front side, first main lip 3 and second main lip 6 are close to the embedded contact ring 7 that is equipped with in one side of seal body 1 center, contact ring 7 internal diameter is less than the internal diameter of first main lip 3 and second owner, contact ring 7 elasticity is lower than seal body 1 elasticity, all open cooling tank 10 on the front and back both sides face of first main lip 3.
In the utility model, a rotary shaft lip seal ring and a mounting hole are assembled through interference, a seal ring is firmly fixed in the hole, one side of a seal body 1 provided with a groove faces oil, the other side of the seal body is open to the atmosphere, then a rotary shaft passes through the seal ring, the inner diameters of a first main lip 3 and a first auxiliary lip 4 are smaller than the diameter of the shaft, pressure can be generated on the shaft in the radial direction, the elasticity of a fastening spring 5 is added, the sealing effect between the rotary shaft lip seal ring and the shaft is better, in addition, friction between the rotary shaft and the seal ring is converted from static friction through mixed friction to hydrodynamic friction, the oil flows to form a liquid oil film, the oil film has fluid lubricity, the rigidity of the oil film just enables a meniscus to be formed at the contact end of the oil film and air under the action of the surface tension of the liquid, the leakage of the lubricating oil is prevented under the action of a liquid conveying effect, realize the sealing of the rotating shaft, the second main lip 6 inclines to the oil side of the sealing body 1, the oil can be better sealed by deformation under the action of the hydraulic force on the oil side of the sealing body 1, meanwhile, the contact ring 7 contacts with the rotating shaft and then is connected with the first main lip 3 and the second main lip 6 in an embedded way, so that the abrasion of the first main lip 3 and the second main lip 6 after long-time use is avoided, the influence on the subsequent use is avoided, the cooling groove 10 on the first main lip 3 can enlarge the surface area of the first main lip 3, the heat dissipation generated by friction can be accelerated, the service life of the device is prolonged, the contact ring 7 with small elasticity deformation is prevented from being excessively deformed due to the fact that the contact ring 7 is embedded in the first main lip 3 and the second main lip 6, causing the lip to flip or self-tightening coil spring to fall off.
Examples
As shown in fig. 3, on the basis of embodiment 1, a second auxiliary lip 8 is specifically further included, the inner ring of the sealing body 1 is provided with the second auxiliary lip 8, and the second auxiliary lip 8 is located between the first main lip 3 and the second main lip 6.
A second auxiliary lip 8 is arranged between the first main lip 3 and the second main lip 6 to form a plurality of sealing barriers for oil liquid, so that the tightness of the device is improved.
As shown in fig. 3, on the basis of embodiment 1, a shaping plate 9 is specifically further included, and the rear side of the sealing body 1 is provided with the shaping plate 9.
The shaping plate at the rear side of the sealing body 1 can further strengthen the strength of the sealing ring so that the sealing ring is firmly arranged in the mounting hole.
While the utility model has been described with reference to exemplary embodiments, it is to be understood that the utility model is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (5)
1. The utility model provides a rotation axis lip rubber seal for car which characterized in that includes:
the sealing device comprises a sealing body (1) and a metal framework (2), wherein the metal framework (2) is arranged inside the sealing body (1);
the inner ring of the sealing body (1) is provided with the first main lip (3);
the inner ring of the sealing body (1) is provided with a first auxiliary lip (4), and the first auxiliary lip (4) is positioned at the rear side of the first main lip (3);
a fastening spring (5), a groove is arranged on the front side of the sealing body (1), and the fastening spring (5) is arranged in the groove;
the second main lip (6) is arranged on the inner ring of the sealing body (1), and the second main lip (6) is positioned on the front side of the first main lip (3);
and the contact ring (7) is embedded on one side of the first main lip (3) and the second main lip (6) close to the center of the sealing body (1).
2. A rotary shaft lip rubber seal for an automobile as defined in claim 1, further comprising:
and the second auxiliary lip (8) is arranged on the inner ring of the sealing body (1), and the second auxiliary lip (8) is positioned between the first main lip (3) and the second main lip (6).
3. A rotary shaft lip rubber seal for an automobile according to claim 2, further comprising:
and the rear side of the sealing body (1) is provided with the shaping plate (9).
4. A rubber seal ring for an automotive rotating shaft lip according to claim 1, characterized in that cooling grooves (10) are formed on both front and rear side surfaces of the first main lip (3).
5. A rotating shaft lip rubber seal for an automobile according to claim 1, wherein the elasticity of the contact ring (7) is lower than the elasticity of the sealing body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322415295.6U CN220706409U (en) | 2023-09-06 | 2023-09-06 | Rotary shaft lip-shaped rubber sealing ring for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322415295.6U CN220706409U (en) | 2023-09-06 | 2023-09-06 | Rotary shaft lip-shaped rubber sealing ring for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706409U true CN220706409U (en) | 2024-04-02 |
Family
ID=90446610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322415295.6U Active CN220706409U (en) | 2023-09-06 | 2023-09-06 | Rotary shaft lip-shaped rubber sealing ring for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220706409U (en) |
-
2023
- 2023-09-06 CN CN202322415295.6U patent/CN220706409U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |