CN210106597U - Multi-lip combined framework oil seal - Google Patents
Multi-lip combined framework oil seal Download PDFInfo
- Publication number
- CN210106597U CN210106597U CN201920929302.5U CN201920929302U CN210106597U CN 210106597 U CN210106597 U CN 210106597U CN 201920929302 U CN201920929302 U CN 201920929302U CN 210106597 U CN210106597 U CN 210106597U
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- CN
- China
- Prior art keywords
- metal framework
- sealing
- lip
- framework
- side edge
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- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 99
- 239000002184 metal Substances 0.000 claims abstract description 63
- 229920001971 elastomer Polymers 0.000 claims abstract description 18
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims abstract description 11
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a multi-lip combined framework oil seal, which comprises a fixed part and a sealing part; the fixing part comprises a first metal framework and a second metal framework, the main body of the cross section of the first metal framework is an L-shaped framework, the right angle of the first metal framework is opposite to that of the second metal framework, and the axial side edge of the second metal framework is attached to the inner side surface of the axial side edge of the first metal framework in a seamless mode; the sealing part is a rubber sealing ring, the outer diameter of the sealing part is a static sealing surface, the inner diameter of the sealing part is a dynamic sealing surface, and a transition part connecting the outer diameter and the inner diameter is arranged; the radial side edge of the first metal framework is embedded into the transition part, and the outer side surface of the axial side edge is embedded into the static sealing surface; the dynamic sealing surface is provided with a dynamic sealing assembly which comprises a first main sealing lip, a second main sealing lip and an auxiliary sealing lip, wherein the first main sealing lip, the second main sealing lip and the auxiliary sealing lip extend to two sides. The utility model provides a many lips combination oil blanket, the external diameter is the design of rubber half package, ensures the leakproofness of external diameter, has the steadiness and the accurate assembly characteristic of preferred simultaneously.
Description
Technical Field
The utility model relates to a many lips combination skeleton oil blanket belongs to sealing member technical field.
Background
In industrial production equipment, an oil seal is one of widely used sealing members, and the oil seal can isolate and enclose lubricating oil in a predetermined space and prevent the lubricating oil from leaking out of the predetermined space. Normally, the rotating member passes through a seal lip of an oil seal, and an inner peripheral surface of the seal lip of the oil seal contacts an outer peripheral surface of the rotating member to form a seal surface. Sliding friction is formed between the sealing lip and the rotating component, and a good sealing state is kept between the sealing lip of the oil seal and the rotating component. Some existing oil sealing devices have the defects of insufficient rigidity and assembly limitation.
SUMMERY OF THE UTILITY MODEL
The purpose is as follows: in order to overcome the defects existing in the prior art, the utility model provides a multi-lip combined framework oil seal.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme does:
a multi-lip combined framework oil seal comprises a fixed part and a sealing part,
the fixing part comprises a first metal framework and a second metal framework, and the main bodies of the sections of the first metal framework and the second metal framework are both L-shaped frameworks; the right angles of the first metal framework and the second metal framework are far away from each other, and the axial side edge of the second metal framework is attached to the inner side surface of the axial side edge of the first metal framework in a seamless mode;
the sealing part is a rubber sealing ring, the outer diameter of the rubber sealing ring is a static sealing surface, the inner diameter of the rubber sealing ring is a dynamic sealing surface, and a transition part is connected between the outer diameter and the inner diameter; the radial side edge of the first metal framework is embedded into the transition part of the rubber sealing ring, and the outer side surface of the axial side edge of the first metal framework is embedded into the static sealing surface; the dynamic sealing surface is provided with a dynamic sealing assembly, the dynamic sealing assembly comprises a first main sealing lip, a second main sealing lip and an auxiliary sealing lip, the first main sealing lip and the second main sealing lip extend to the same side, and the auxiliary sealing lip extends to the other side.
Further, an annular groove is formed in the outer annular portion of the first main sealing lip, and a spring is arranged in the annular groove.
Further, the spring is made of carbon steel materials.
Furthermore, the first metal framework and the second metal framework are respectively made of carbon steel materials.
Furthermore, the right-angle bent parts of the first metal framework and the second metal framework are in arc transition.
Furthermore, the axial side end part of the first metal framework is bent inwards and is wrapped on the right-angle outer edge of the second metal framework.
Further, the diameter of an inner ring of the auxiliary sealing lip is equal to that of an inner ring of the second main sealing lip, and the diameter of the inner ring of the second main sealing lip is larger than that of the inner ring of the first main sealing lip.
Further, the rubber sealing ring is made of hydrogenated nitrile rubber or polytetrafluoroethylene.
Further, the axial side edge of the first metal skeleton is covered by the static sealing surface, and the length of the axial side edge of the first metal skeleton accounts for 1/2-2/3 of the total length of the axial side edge of the first metal skeleton.
Has the advantages that: the multi-lip combined framework oil seal provided by the utility model has the advantages that the outer diameter is designed as a rubber half-pack, the sealing property of the outer diameter is ensured, and simultaneously, the multi-lip combined framework oil seal has better stability and accurate assembly characteristic; the multi-lip design can provide better sealing effect; the internal and external combined frameworks increase rigidity, so that the oil seal cannot be easily deformed, and a certain protection effect is achieved on the main lip.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a multi-lip combined framework oil seal includes a fixing portion and a sealing portion.
The fixed part includes first metal framework 1 and second metal framework 2, the cross-section main part of first metal framework 1, second metal framework 2 is L type skeleton, first metal framework 1 keeps away from each other with second metal framework 2's right angle, and the seamless laminating of axial side 21 of second metal framework 2 is at the 11 medial surfaces of axial side of first metal framework 1.
The first metal framework 1 and the second metal framework 2 are respectively made of carbon steel materials.
The right-angle bent parts of the first metal framework 1 and the second metal framework 2 are in arc transition.
The end part of the axial side 11 of the first metal framework 1 is bent inwards and is coated on the right-angle outer edge of the second metal framework 2.
The sealing part is a rubber sealing ring 3, the outer diameter of the rubber sealing ring 3 is a static sealing surface 31, the inner diameter of the rubber sealing ring is a dynamic sealing surface 32, and a transition part 33 is connected between the outer diameter and the inner diameter. The radial side edge 12 of the first metal framework 1 is embedded into the transition part 33 of the rubber sealing ring 3; the outer side surface of the axial side edge 11 of the first metal framework 1 is embedded in the static sealing surface 31, and the length of the axial side edge 11 of the first metal framework 1 covered by the static sealing surface 31 accounts for 1/2 to 2/3 of the total length of the axial side edge 11 of the first metal framework.
The dynamic sealing surface 32 is provided with a dynamic sealing assembly, the dynamic sealing assembly comprises a first main sealing lip 4, a second main sealing lip 5 and an auxiliary sealing lip 6, the first main sealing lip 4 and the second main sealing lip 5 extend towards the same side, the sealing performance is improved, and the auxiliary sealing lip 6 extends towards the other side, so that the dustproof effect is achieved.
The outer annular portion of first main seal lip 4 is provided with annular groove, is equipped with spring 7 in the annular groove, spring 7 adopts carbon steel material to make, provides certain binding force of oil blanket lip, extension oil blanket life-span.
The inner ring diameter of the auxiliary sealing lip 6 is equal to that of the second main sealing lip 5, and the inner ring diameter of the second main sealing lip 5 is larger than that of the first main sealing lip 4.
The rubber sealing ring 3 is made of hydrogenated nitrile rubber or polytetrafluoroethylene.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a many lips combination skeleton oil blanket which characterized in that: comprises a fixed part and a sealing part,
the fixing part comprises a first metal framework (1) and a second metal framework (2), and main bodies of sections of the first metal framework (1) and the second metal framework (2) are both L-shaped frameworks; the right angles of the first metal framework (1) and the second metal framework (2) are mutually far away, and the axial side edge (21) of the second metal framework (2) is seamlessly attached to the inner side surface of the axial side edge (11) of the first metal framework (1);
the sealing part is a rubber sealing ring (3), the outer diameter of the rubber sealing ring (3) is a static sealing surface (31), the inner diameter of the rubber sealing ring (3) is a dynamic sealing surface (32), and a transition part (33) connecting the outer diameter and the inner diameter is arranged; the radial side edge (12) of the first metal framework (1) is embedded into a transition part (33) of the rubber sealing ring (3), and the outer side surface of the axial side edge (11) of the first metal framework (1) is embedded into a static sealing surface (31); the dynamic sealing surface (32) is provided with a dynamic sealing assembly, the dynamic sealing assembly comprises a first main sealing lip (4), a second main sealing lip (5) and an auxiliary sealing lip (6), the first main sealing lip (4) and the second main sealing lip (5) extend towards the same side, and the auxiliary sealing lip (6) extends towards the other side.
2. The multi-lip combined framework oil seal according to claim 1, characterized in that: an annular groove is formed in the outer annular portion of the first main sealing lip (4), and a spring (7) is arranged in the annular groove.
3. The multi-lip combined framework oil seal according to claim 2, characterized in that: the spring (7) is made of carbon steel material.
4. The multi-lip combined framework oil seal according to claim 1, characterized in that: the first metal framework (1) and the second metal framework (2) are made of carbon steel materials respectively.
5. The multi-lip combined framework oil seal according to claim 1, characterized in that: the right-angle bent parts of the first metal framework (1) and the second metal framework (2) are in arc transition.
6. The multi-lip combined framework oil seal according to claim 1, characterized in that: the end part of the axial side edge (11) of the first metal framework (1) is bent inwards and is coated on the right-angle outer edge of the second metal framework (2).
7. The multi-lip combined framework oil seal according to claim 1, characterized in that: the inner ring diameter of the auxiliary sealing lip (6) is equal to that of the second main sealing lip (5), and the inner ring diameter of the second main sealing lip (5) is larger than that of the first main sealing lip (4).
8. The multi-lip combined framework oil seal according to claim 1, characterized in that: the rubber sealing ring (3) is made of hydrogenated nitrile rubber or polytetrafluoroethylene.
9. The multi-lip combined framework oil seal according to claim 1, characterized in that: the length of the axial side edge (11) of the first metal framework (1) covered by the static sealing surface (31) accounts for 1/2-2/3 of the total length of the axial side edge (11) of the first metal framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929302.5U CN210106597U (en) | 2019-06-20 | 2019-06-20 | Multi-lip combined framework oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929302.5U CN210106597U (en) | 2019-06-20 | 2019-06-20 | Multi-lip combined framework oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106597U true CN210106597U (en) | 2020-02-21 |
Family
ID=69564730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920929302.5U Expired - Fee Related CN210106597U (en) | 2019-06-20 | 2019-06-20 | Multi-lip combined framework oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442088A (en) * | 2020-05-14 | 2020-07-24 | 昆山健博密封件科技有限公司 | Combined polytetrafluoroethylene oil seal |
-
2019
- 2019-06-20 CN CN201920929302.5U patent/CN210106597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442088A (en) * | 2020-05-14 | 2020-07-24 | 昆山健博密封件科技有限公司 | Combined polytetrafluoroethylene oil seal |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |