CN219975337U - Double-lip dustproof oil seal - Google Patents
Double-lip dustproof oil seal Download PDFInfo
- Publication number
- CN219975337U CN219975337U CN202320797164.6U CN202320797164U CN219975337U CN 219975337 U CN219975337 U CN 219975337U CN 202320797164 U CN202320797164 U CN 202320797164U CN 219975337 U CN219975337 U CN 219975337U
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- CN
- China
- Prior art keywords
- oil seal
- lip
- outer framework
- double
- matched
- Prior art date
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Links
- 239000000428 dust Substances 0.000 claims description 30
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 241000270295 Serpentes Species 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a double-lip dustproof oil seal, which comprises an oil seal main body, an outer framework, an oil seal main lip, an oil seal auxiliary lip and a dustproof cover, wherein the outer framework is arranged on the outer framework; the oil seal outer framework is fixed on the hub shell, the lower part of the oil seal outer framework is connected with the oil seal main body, the upper part of the oil seal outer framework is provided with an extension edge in a step shape, and the inflection point is matched with the hub shell; the main lip of the oil seal is arranged at the lower part of the oil seal main body and is matched with the hub shaft; the oil seal auxiliary lip is obliquely upwards arranged on the side surface of the oil seal main body; the dustproof cover is sleeved on the hub shaft, the upper part of the dustproof cover is matched with the outer framework to form a first staggered channel, and the lower part of the dustproof cover is matched with the auxiliary lip of the oil seal to form a second staggered channel. According to the double-lip dustproof oil seal provided by the utility model, the outer framework and the dustproof cover form a first staggered channel, and the oil seal auxiliary lip and the dustproof cover form a second staggered channel. Therefore, foreign objects are effectively prevented from entering the main lip of the oil seal, abrasion of the main lip of the oil seal can be effectively avoided, and the service lives of the oil seal and the internal bearing are prolonged.
Description
Technical Field
The utility model belongs to the technical field of sealing structures, and particularly relates to a double-lip dustproof oil seal.
Background
The oil seal is a mechanical element for sealing oil, also called a rotary shaft lip seal ring. With the development of mechanical technology, oil seals are also used to prevent leakage of water and chemical solutions and invasion of dust and earth and sand from the outside in addition to oil.
On the transaxle, the seal between the hub axle and the hub shell also needs to be made using an oil seal. The conventional oil seal structure is shown in fig. 1, and an oil seal 02 fixed on a hub shell 01 comprises an outer framework 02B and an oil seal lip 02A, wherein the outer framework is matched with the hub shell, and the lip is matched with a hub shaft in a sliding way to realize rotary seal. Due to severe conditions in the use process, under the condition that protective measures are not taken on the oil seal 02, foreign matters such as external dust, soil sand and the like possibly enter the oil seal lip 02A matched with the hub shaft 03 along with air flow, when the foreign matters enter the oil seal main lip 02A, abrasion of the oil seal lip is accelerated, the service life of the oil seal is shortened, and therefore the foreign matters such as the external dust, the soil sand and the like enter the inside to further shorten the service life of the bearing.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the double-lip dustproof oil seal, which can effectively prevent foreign matters such as external dust, soil sand and the like from entering the main lip of the oil seal to cause accelerated abrasion of the lip of the oil seal, and shorten the service life of the oil seal.
The utility model is realized by adopting the following technical scheme: the utility model provides a two lip mouth dustproof oil blanket which characterized in that: the anti-dust device comprises an oil seal main body, an outer framework 11C, an oil seal main lip 11A, an oil seal auxiliary lip 11B and a dust cover 12; the oil seal outer framework 11C is fixed on the hub shell 10, the oil seal outer framework 11C is -shaped, the lower part of the oil seal outer framework is connected with the oil seal main body, the upper part of the oil seal outer framework is provided with an extension edge in a step shape, and an inflection point is matched with the hub shell 10; the main lip 11A of the oil seal is arranged at the lower part of the oil seal main body and is matched with the hub shaft 13; the oil seal auxiliary lip 11B is obliquely upwards arranged on the side surface of the oil seal main body; the dust cover 12 is in an inverted U shape and is sleeved on the hub shaft 13, the upper part of the dust cover is matched with the outer framework to form a first staggered channel P1, and the lower part of the dust cover is matched with the oil seal auxiliary lip 11B to form a second staggered channel P2.
Further: the included angle between the oil seal auxiliary lip 11B and the horizontal is 30 degrees.
Further: the double-lip dustproof oil seal is of an annular integrated structure.
4 further: the outer framework of the double-lip dustproof oil seal is a rigid framework.
The beneficial effects of the utility model are as follows: according to the double-lip dustproof oil seal provided by the utility model, the outer framework and the dustproof cover form a first staggered channel, and the oil seal auxiliary lip and the dustproof cover form a second staggered channel. Therefore, foreign objects are effectively prevented from entering the main lip of the oil seal, abrasion of the main lip of the oil seal can be effectively avoided, and the service lives of the oil seal and the internal bearing are prolonged.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a prior art oil seal;
fig. 2 is a schematic diagram of the overall structure of the present utility model.
The serial numbers in the figures illustrate:
01-a hub shell; 02-oil seal; 02A-an oil seal lip; 02B-exo-skeleton; 03-a hub axle;
10-a hub shell; 11-double lip dustproof oil seal; 110-an oil seal body; 11A-an oil seal main lip; 11B-an oil seal auxiliary lip; 11C-an oil seal outer framework; 11D-extension; 12-a dust cover; p1-a first staggered passage; p2-second interleaved channels.
Detailed Description
The following further explains the double-lip dustproof oil seal provided by the utility model with reference to the attached drawings.
Referring to fig. 2, the double-lip dustproof oil seal 11 of the present utility model comprises an oil seal main body 110, an oil seal outer skeleton 11C, an oil seal main lip 11A, an oil seal auxiliary lip 11B, and a dust cover 12; the oil seal outer framework 11C is clamped on the hub shell 10, the section of the oil seal outer framework 11C is , the lower part of the oil seal outer framework is connected with the oil seal main body, the upper part of the oil seal outer framework is upward stepped (upward bent and rightward bent, and is in a snake shape or step shape) provided with an extension edge 11D, and an inflection point (namely an angle which is formed between the extension edge and the outer framework and is close to 90 degrees) is matched with the hub shell 10;
the main lip 11A of the oil seal is arranged at the lower part of the oil seal main body and is matched with the hub shaft 13 to play a role of sealing; the oil seal auxiliary lip 11B is obliquely upwards arranged on the side surface of the oil seal main body;
the section of the dust cover 12 is in an inverted U shape (U shape rotated 90 degrees leftwards), the dust cover is sleeved on the hub shaft 13, the upper transverse edge is matched with the extension edge of the outer framework to form a first staggered channel P1, and the lower part of the upper transverse edge is matched with the oil seal auxiliary lip 11B to form a second staggered channel P2; the two staggered channels form labyrinth type sealing, so that foreign objects can be effectively prevented from invading.
Preferably: the included angle between the oil seal auxiliary lip 11B and the horizontal is 30 degrees.
Preferably: the double-lip dustproof oil seal is of an annular integrated structure.
Preferably: the outer framework of the double-lip dustproof oil seal is a rigid framework.
Preferably: the extension edge is positioned on a vertical plane (i.e. the rightmost end is flush) with the outer end of the oil seal auxiliary lip.
Examples
The present embodiment provides a double-lip dust seal, as shown in fig. 2, comprising an oil seal exoskeleton 11C fixed on a hub shell 10, wherein the oil seal exoskeleton 11C and a dust cover 12 are staggered with each other in a gap in the entering direction of external dust, soil sand and other objects to form a first staggered channel P1, and the double-lip dust seal 11 and the hub shell 10 rotate as output components; the oil seal auxiliary lip 11B and the dust cover 12 form a second staggered channel P2, and the dust cover 12 and the hub shaft 13 are used as fixing components to be opposite to the rotation of the double-lip dust seal, so that a labyrinth channel is formed, foreign matters are effectively prevented from entering the oil seal main lip, abrasion of the oil seal main lip is avoided, and the service life of the oil seal is shortened.
As shown in fig. 2, the double-lip dustproof oil seal is of a ring-mounted integrated structure.
As shown in fig. 2, the outer framework of the double-lip dustproof oil seal is a rigid framework, and is bent for multiple times to form a serpentine structure to form a first staggered channel with the dust cover.
As shown in fig. 2, the double-lip dustproof oil seal auxiliary lip of the utility model extends at a certain angle to form a second staggered channel with the dust cover.
The foregoing detailed description is directed to a possible embodiment of the present utility model, which is not intended to limit the scope of the claims of the present utility model, but rather to cover all equivalent changes and modifications that may be made without departing from the technical spirit of the present utility model.
Claims (4)
1. The utility model provides a two lip mouth dustproof oil blanket which characterized in that: the anti-dust device comprises an oil seal main body (110), an oil seal outer framework (11C), an oil seal main lip (11A), an oil seal auxiliary lip (11B) and a dust cover (12);
the oil seal outer framework (11C) is fixed on the hub shell (10), the oil seal outer framework (11C) is -shaped, the lower part of the oil seal outer framework is connected with the oil seal main body (110), the upper part of the oil seal outer framework is provided with an extension edge in a step shape, and an inflection point is matched with the hub shell (10);
the oil seal main lip (11A) is arranged at the lower part of the oil seal main body (110) and is matched with the hub shaft (13); the oil seal auxiliary lip (11B) is obliquely upwards arranged on the side surface of the oil seal main body (110);
the dust cover (12) is of an inverted U shape, is sleeved on the hub shaft (13), the upper part of the dust cover is matched with the outer framework to form a first staggered channel (P1), and the lower part of the dust cover is matched with the oil seal auxiliary lip (11B) to form a second staggered channel (P2).
2. The double lip dust seal according to claim 1, wherein: the included angle between the oil seal auxiliary lip (11B) and the horizontal is 30 degrees.
3. The double lip dust seal according to claim 1, wherein: the double-lip dustproof oil seal is of an annular integrated structure.
4. The double lip dust seal according to claim 2, wherein: the oil seal outer framework is a rigid framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320797164.6U CN219975337U (en) | 2023-10-07 | 2023-10-07 | Double-lip dustproof oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320797164.6U CN219975337U (en) | 2023-10-07 | 2023-10-07 | Double-lip dustproof oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975337U true CN219975337U (en) | 2023-11-07 |
Family
ID=88588183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320797164.6U Active CN219975337U (en) | 2023-10-07 | 2023-10-07 | Double-lip dustproof oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975337U (en) |
-
2023
- 2023-10-07 CN CN202320797164.6U patent/CN219975337U/en active Active
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