CN207034177U - A kind of dust-proof axle-shaft oil seal - Google Patents
A kind of dust-proof axle-shaft oil seal Download PDFInfo
- Publication number
- CN207034177U CN207034177U CN201720846919.1U CN201720846919U CN207034177U CN 207034177 U CN207034177 U CN 207034177U CN 201720846919 U CN201720846919 U CN 201720846919U CN 207034177 U CN207034177 U CN 207034177U
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- dust
- proof
- oil seal
- skeleton
- axle
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Abstract
The utility model discloses a kind of dust-proof axle-shaft oil seal, including cylindrical sealing framework, rubbery sealed body and oil seal spring, described cylindrical sealing framework is U-shaped skeleton, its outside is static seal side, dust-proof skeleton is positioned in the U-lag of cylindrical sealing framework and is engaged with cylindrical sealing framework, dust-proof skeleton coordinates to center extension with shaft clearance, and the utility model has the characteristics of simple in construction, easy for installation, dirt exclusion capabilities are good.
Description
Technical field
The utility model belongs to oil seal technique field, more particularly, to the strong dust-proof semiaxis of a kind of dust protection, sandstone ability
Oil sealing.
Background technology
At present, poor for domestic road conditions, the characteristics of muddy water, dust, more sandstone, axle-shaft oil seal is in more severe work
The more road conditions of more preferable anti-dust performance, particularly sandstone are required when being used in environment.The use environment pair of axle-shaft oil seal
The sealing property of oil sealing has a great impact, under good applying working condition, oil sealing can obtain more preferably sealing effectiveness and compared with
Long service life, however, axle-shaft oil seal determines that its use environment is very severe using position.Axle-shaft oil seal is pacified
On semiaxis, the working environment of axle-shaft oil seal is typically that this causes oil sealing often in mud in the external environment of underbody
Worked in the more environment of water, dust, sandstone.Pollutant in external environment can be entered between seal lip and axle, caused
The inordinate wear of oil seal lip, the sealing property of oil seal lip is reduced, causes oil leak.In order to improve the dust tightness of axle-shaft oil seal
Can, the more design of in the market is to increase lateral lip on stem seal design, and is furnished with mud retaining ring, and this dust-tight manner is to installation site
It is required that high, construction is complicated.Dustproof axle-shaft oil seal equipped with dust-proof skeleton is easy for installation, and anti-dust performance is good, suitable for dust,
The more road conditions of sandstone.
The content of the invention
The purpose of this utility model is the deficiency for improving prior art and provided a kind of simple in construction, easy for installation, anti-
The good dust-proof axle-shaft oil seal of dirt ability.
The purpose of this utility model is achieved in that a kind of dust-proof axle-shaft oil seal, including cylindrical sealing framework, rubber are close
Body and oil seal spring are sealed, is characterized in that described cylindrical sealing framework be U-shaped skeleton, is static seal side on the outside of it, dust-proof skeleton
It is positioned in the U-lag of cylindrical sealing framework and is engaged with cylindrical sealing framework, dust-proof skeleton extends to center and between centers
Gap coordinates.
Can be that the cylindrical sealing framework outer side edges of U-shaped stretch out shape to further realize the purpose of this utility model
Into flange.
Can be provided with slotted eye on dust-proof skeleton to further realize the purpose of this utility model.
Compared with the prior art the utility model has following distinguishing feature and good effect：The utility model has used U
Type skeleton, U-shaped skeleton employ turnup structure, avoid oil sealing installation and tilt, it is ensured that oil seal pressing is correct.In U-shaped skeleton
Dust-proof skeleton is equipped with groove, the material of dust-proof skeleton is SPCC, when the sandstone for having particle larger on road surface is upspring, for
Axle-shaft oil seal has good protective effect.Dust-proof skeleton coordinates with shaft clearance, and positioning and guiding is played in the installation process of axle
Effect, prevent that oil sealing pair lip from overturning and main lip accidental injury, and is provided with slotted eye on the taper surface of dust-proof skeleton,
When there is a small amount of fine dust to enter in the cavity of dust-proof skeleton, the dust into cavity can be in the centrifugation masterpiece of high-speed rotating shaft
Discharged in time by the slotted eye on dust-proof skeleton with lower, ensure that dust will not enter at the lip seal of rubber bodies, it is ensured that
Oil sealing has good anti-dust performance in the case of no mud retaining ring and lateral lip.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another structural representation of the present utility model.
Fig. 3 is another structural representation of the present utility model.
Fig. 4 is that the utility model installs and uses schematic diagram.
In figure：1st, rubbery sealed body, 2, oil seal spring, 3, cylindrical sealing framework, 4, dust-proof skeleton, 5, hole, 6, axle, 7, turn over
Side, 8, slotted eye.
Embodiment
A kind of dust-proof axle-shaft oil seal, reference picture 1, including cylindrical sealing framework 3, rubbery sealed body 1, oil seal spring 2, it is described
Cylindrical sealing framework 3 be U-shaped skeleton, its outside is interference fitted to form cylindrical static seal with hole, prevents lubricating oil outside oil sealing
Circle leakage, primarily serves cylindrical sealing function；Dust-proof skeleton 4, dust-proof skeleton 4 are equipped with the groove of U-shaped cylindrical sealing framework 3
Coordinate to center extension with shaft clearance, primarily serve dustproof effect, the material of dust-proof skeleton 4 is SPCC, when there is particle on road surface
When larger sandstone is upspring, there is good protective effect for axle-shaft oil seal, dust-proof skeleton 4 coordinates with shaft clearance, in axle
Play a part of positioning and guiding in installation process, prevent the upset of oil sealing pair lip and the accidental injury of main lip；Oil seal spring 2 assembles
In the spring groove of rubbery sealed body 1, the effect of enhancing sealed lip enclasping force is primarily served；Rubbery sealed body 1 with it is cylindrical close
Envelope skeleton 3 bonds together, and by the support of cylindrical sealing framework 3 and the holding of oil seal spring 2, plays lip seal effect.
Further, reference picture 2, Fig. 4, the cylindrical outer side edges of sealing framework 3 of U-shaped stretch out to form flange 7, in oil sealing pressure
Avoid oil sealing installation during entering hole 5 to tilt, it is ensured that oil seal pressing is correct.
In order to ensure that dust will not enter at the lip seal of rubber bodies, reference picture 3, Fig. 4, in the taper of dust-proof skeleton 4
Slotted eye 8 is provided with face, when there is a small amount of fine dust to enter in the cavity of dust-proof skeleton 4, the dust into cavity can be
Discharged in time by the slotted eye 8 on dust-proof skeleton 4 under the centrifugal action of the axle 6 of rotation at a high speed, ensure that dust will not enter
At the lip seal of rubber bodies seal 1, it is ensured that oil sealing has well dust-proof in the case of no mud retaining ring and lateral lip
Performance.
The difference of the dust-proof axle-shaft oil seal of the utility model and general axle-shaft oil seal is to add dust-proof skeleton 4, is not required to
Mud retaining ring and lateral lip is wanted to design, advantage is：Need not design lateral lip and mud retaining ring, dust-proof skeleton 4 play gear muddy water, dust,
The dustproof effect of sandstone, while play a part of positioning and guiding in the installation process of axle, prevent the upset of oil sealing pair lip and main lip
Mouthful accidental injury, have ensure oil sealing installation smoothly, the characteristics of dirt exclusion capabilities are strong, excellent in durability.
Claims (3)
1. a kind of dust-proof axle-shaft oil seal, including cylindrical sealing framework, rubbery sealed body and oil seal spring, it is characterized in that described is outer
Circle sealing framework be U-shaped skeleton, and its outside is static seal side, dust-proof skeleton be positioned over cylindrical sealing framework U-lag it is interior and with
Cylindrical sealing framework is engaged, and dust-proof skeleton coordinates to center extension with shaft clearance.
2. a kind of dust-proof axle-shaft oil seal according to claim 1, it is characterized in that the cylindrical sealing framework outer side edges of U-shaped are to extension
Stretch to form flange.
A kind of 3. dust-proof axle-shaft oil seal according to claim 1, it is characterized in that being provided with slotted eye on dust-proof skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846919.1U CN207034177U (en) | 2017-07-13 | 2017-07-13 | A kind of dust-proof axle-shaft oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846919.1U CN207034177U (en) | 2017-07-13 | 2017-07-13 | A kind of dust-proof axle-shaft oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034177U true CN207034177U (en) | 2018-02-23 |
Family
ID=61463936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846919.1U Active CN207034177U (en) | 2017-07-13 | 2017-07-13 | A kind of dust-proof axle-shaft oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034177U (en) |
-
2017
- 2017-07-13 CN CN201720846919.1U patent/CN207034177U/en active Active
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