CN206290710U - A kind of engine low friction crankshaft oil seal - Google Patents
A kind of engine low friction crankshaft oil seal Download PDFInfo
- Publication number
- CN206290710U CN206290710U CN201621398586.2U CN201621398586U CN206290710U CN 206290710 U CN206290710 U CN 206290710U CN 201621398586 U CN201621398586 U CN 201621398586U CN 206290710 U CN206290710 U CN 206290710U
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- Prior art keywords
- oil
- low friction
- lip
- oil seal
- seal
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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.)
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Abstract
The utility model discloses a kind of engine low friction crankshaft oil seal; it includes skeleton and the rubbery sealed body being coated on outside the skeleton; wherein; one end of the rubbery sealed body is disposed with protection lip; the protection lip is in tilted layout; and the endoporus of the rubbery sealed body is extended with interior sealing lip to inner side, if offering arterial highway spirality oil drive back thread on the inwall of the interior sealing lip, obstruct point is provided with the spirality oil drive back thread.The above-mentioned engine lip of low friction crankshaft oil seal makes the oil return ability of oil sealing stronger using the design of spirality oil drive back thread.Oil sealing need not install spring simultaneously, reduce radial pressure of the oil sealing to axle, and oil sealing reduces 50% with the frictional force of axle.It is not only simple in structure, frictional resistance is small；And good sealing effect, long service life.
Description
Technical field
The utility model is related to a kind of oil sealing, more particularly, to a kind of engine low friction crankshaft oil seal.
Background technology
Bent axle is one of main parts size of piston-mode motor, for the reciprocating motion of piston is changed into rotation fortune
It is dynamic.In high speed operation, its each transmission component all rotates engine together, throws away substantial amounts of machine oil, and machine oil is easily along bent axle
Axially extravasation, therefore be required to that oil sealing is installed on engine crankshaft.
The big defect of crankshaft oil seal generally existing frictional force in the market, the anchor ring that lip is contacted with axle is difficult to be formed
Good oil film, so the abrasion of both aggravations, making will oil leak in the oil sealing short time.
Utility model content
The purpose of this utility model is to provide a kind of engine low friction crankshaft oil seal, its have frictional resistance small and
The characteristics of long service life, to solve the above mentioned problem that engine exists with crankshaft oil seal in the prior art.
It is that, up to this purpose, the utility model uses following technical scheme：
A kind of engine low friction crankshaft oil seal, it includes skeleton and the rubber seal being coated on outside the skeleton
Body, wherein, protection lip is outward extended with the endoporus of the rubbery sealed body, the protection lip is in tilted layout, and the rubber
Interior sealing lip is extended with to inner side in the endoporus of seal, if offering arterial highway spirality oil return on the inwall of the interior sealing lip
Line, is provided with obstruct point on the spirality oil drive back thread.
Especially, several static seal lug bosses are provided with the lateral wall of the rubbery sealed body.
Especially, the side of the rubbery sealed body offers several for the location hole to framework location.
Especially, the interior sealing lip is in tilted layout.
Especially, two positioning convex are arranged at intervals with the outer wall of the interior sealing lip end, in order to close in the later stage
Seal the processing of lip.
Especially, it is the stamping parts of " L " shape that the skeleton uses section.
The beneficial effects of the utility model are, compared with prior art the engine lip of low friction crankshaft oil seal
Using the design of spirality oil drive back thread, make the oil return ability of oil sealing stronger.Oil sealing need not install spring simultaneously, reduce oil sealing pair
The radial pressure of axle, oil sealing reduces 50% with the frictional force of axle.It is not only simple in structure, frictional resistance is small；And good sealing effect,
Long service life.
Brief description of the drawings
Fig. 1 is the engine structural representation of low friction crankshaft oil seal of the offer of the utility model specific embodiment 1；
Fig. 2 is the engine spirality oil return of low friction crankshaft oil seal of the offer of the utility model specific embodiment 1
The structural representation of line；
Fig. 3 be in Fig. 2 A-A to profile.
In figure：
1st, skeleton；2nd, rubbery sealed body；3rd, lip is protected；4th, interior sealing lip；5th, spirality oil drive back thread；6th, point is intercepted；7th, it is fixed
Position is raised；8th, static seal lug boss；9th, location hole.
Specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.
Refer to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of engine with low friction crankshaft oil seal include skeleton 1 and
The rubbery sealed body 2 outside the skeleton 1 is coated on, it is the stamping parts of " L " shape, the rubber seal that the skeleton 1 uses section
Body 2 is by injecting sulfidization molding.And protection lip 3 is outward extended with the endoporus of the rubbery sealed body 2, the protection lip 3 inclines
Tiltedly arrange, and interior sealing lip 4 is extended with to inner side in the endoporus of the rubbery sealed body 2, the interior sealing lip 4 is inclination cloth
Put,
If offering arterial highway spirality oil drive back thread 5 on the inwall of the interior sealing lip 4, set on the spirality oil drive back thread 5
Obstruct point 6 is equipped with, two positioning convex 7 is arranged at intervals with the outer wall of the interior sealing lip 4, in order to later stage interior sealing lip
4 processing.
Several static seal lug bosses 8, and the rubbery sealed body 2 are provided with the lateral wall of the rubbery sealed body 2
Side be provided with several location holes 9, the location hole 9 is used to position skeleton 1 when sulfidization molding is injected.
Above example is to elaborate general principle of the present utility model and characteristic, and the utility model does not receive above-mentioned example
Limitation, on the premise of the utility model spirit and scope are not departed from, the utility model also has various change and change, these changes
Change and change is both fallen within the range of claimed the utility model.The claimed scope of the utility model will by appended right
Ask book and its equivalent thereof.
Claims (6)
1. a kind of engine low friction crankshaft oil seal, it includes skeleton and the rubbery sealed body being coated on outside the skeleton,
Characterized in that, one end of the rubbery sealed body is disposed with protection lip, the protection lip is in tilted layout, and the rubber seal
Interior sealing lip is extended with to inner side in the endoporus of body, if offering arterial highway spirality oil drive back thread on the inwall of the interior sealing lip,
Obstruct point is provided with the spirality oil drive back thread.
2. engine according to claim 1 low friction crankshaft oil seal, it is characterised in that the rubbery sealed body it is outer
Several static seal lug bosses are provided with the wall of side.
3. the engine low friction crankshaft oil seal according to any one of claim 1 or 2, it is characterised in that the rubber
The side of seal offers several for the location hole to framework location.
4. engine according to claim 1 low friction crankshaft oil seal, it is characterised in that the interior sealing lip inclines cloth
Put.
5. engine according to claim 4 low friction crankshaft oil seal, it is characterised in that the interior sealing lip end
Two positioning convex are arranged at intervals with outer wall.
6. engine according to claim 1 low friction crankshaft oil seal, it is characterised in that the skeleton use section for
The stamping parts of " L " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621398586.2U CN206290710U (en) | 2016-12-19 | 2016-12-19 | A kind of engine low friction crankshaft oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621398586.2U CN206290710U (en) | 2016-12-19 | 2016-12-19 | A kind of engine low friction crankshaft oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290710U true CN206290710U (en) | 2017-06-30 |
Family
ID=59105102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621398586.2U Active CN206290710U (en) | 2016-12-19 | 2016-12-19 | A kind of engine low friction crankshaft oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630745A (en) * | 2018-06-25 | 2019-12-31 | Nok株式会社 | Sealing device |
-
2016
- 2016-12-19 CN CN201621398586.2U patent/CN206290710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630745A (en) * | 2018-06-25 | 2019-12-31 | Nok株式会社 | Sealing device |
| CN110630745B (en) * | 2018-06-25 | 2021-08-10 | Nok株式会社 | Sealing device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |