CN205503990U - Rotatory oil blanket of automobile -used two way seal - Google Patents
Rotatory oil blanket of automobile -used two way seal Download PDFInfo
- Publication number
- CN205503990U CN205503990U CN201620171770.7U CN201620171770U CN205503990U CN 205503990 U CN205503990 U CN 205503990U CN 201620171770 U CN201620171770 U CN 201620171770U CN 205503990 U CN205503990 U CN 205503990U
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- oil seal
- seal body
- inner oil
- seal
- rubber elastomer
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Abstract
The utility model relates to a rotatory oil blanket of automobile -used two way seal, have the inner oil seal body of outside extension terminal surface and the outer oil blanket body that is located its outside below including being hollow cylinder shape and upper end, the outside of the outer oil blanket body and medial surface go up all with the rubber elasticity body coupling, its characterized in that, the rubber elasticity body is close to inner oil seal body one side bonding has PTFE lip piece, PTFE lip piece is equipped with radial primary seal lip with the outer anchor ring contacting area of the inner oil seal body, the rubber elasticity body is equipped with axial primary seal lip with the end face contaction position of the inner oil seal body. The beneficial effects of the utility model are that: realized axial and radial seal simultaneously, axial seal can promote the resistant ability of beating of product, and the radial seal promotes the resistant drunkenness ability of product, adoption PTFE vulcanizes with the rubber elasticity body, and the rubber elasticity body has compensatied the not enough defect of the follow -up nature of PTFE lip piece in axial seal, can guarantee the good contact of axial seal lip and inner oil seal terminal surface.
Description
Technical field
This utility model relates to a kind of vehicle oil seal, particularly relates to a kind of vehicle bidirectional and seals rotary oil seal,
Belong to oil seal technique field.
Background technology
Before the movable sealing contacted with external environment in automobile-used rotary oil seal, particularly electromotor is mainly bent axle
Rear oil seal, as it is shown in figure 1, the applying working condition of bent axle front and rear oil seals is also the most complicated simultaneously,
The highest proportion is occupied in electromotor feeds back because of seal failure.
However as the development of industry, the continuous maturation government in addition of automobile manufacture industry is dirty to environment
Requirement in terms of dye constantly promotes, and forces electromotor to manufacture constantly renewal, break through.In recent years, along with
The propelling motor of industry mainly rotating speed efficient towards low row, high, long-life direction are developed, and are started
Seal proposes higher performance requirement, the lowest friction, long-life (>=100 ten thousand kilometers or whole
Body is without changing), to adapt to high speed rotating, temperature resistant range wider etc..
Therefore, it is possible to the temperature difference meeting different geographical uses and remains at high speed keep low friction to turn round
Square, the Sealing Technology that can meet the high life has become a kind of inexorable trend.
Existing automobile-used rotary oil seal, in structure design the sealing means mainly taked have axial seal and
Radial seal two kinds.And the sealing lip of axial seal structure mostly is rubber elastomer, it is characterized in rubber material
The resistance to dry grinding of material is poor, the oil sealing resistance to axial float ability of axial seal structure, and resistance to circular runout is with inclined
Heart ability is high.Sealing lip many employings rubber elastomer of radial seal structure or PTFE material, it is special
Point is that resistance to axial float ability is strong, but resistance to circular runout and eccentric ability are not as axial seal structure, institute
With simple axial seal structure design and the design of simple radial seal structure, at axial float, radially
Beat and eccentric ability be required to more and more higher in the case of can not meet and adapt to low friction, longevity
The seal request of life.
Utility model content
This utility model is for not enough present on existing automobile-used rotary oil seal structure, it is provided that a kind of automobile-used double
To sealing rotary oil seal.
The technical scheme that this utility model solves above-mentioned technical problem is as follows:
A kind of vehicle bidirectional seals rotary oil seal, including in hollow cylinder and upper end has the end that stretches out
The inner oil seal body in face and the outer oil seal body being positioned at its outer side-lower, the outside of described outer oil seal body and medial extremity
All it is connected with rubber elastomer on face, it is characterised in that described rubber elastomer is near inner oil seal body side
Being bonded with PTFE lips, described PTFE lips is provided with radially with the cylindrical anchor ring contact site of inner oil seal body
Primary seal lip, described rubber elastomer is provided with axial primary seal lip with the end contact position of inner oil seal body.
The beneficial effects of the utility model are:
1) be simultaneously achieved axially and radial seal, axial seal can the resistance to ability of beating of improving product,
The resistance to play ability of radial seal improving product；
2) using PTFE to vulcanize with rubber elastomer, rubber elastomer compensate for PTFE lips and exists
The defect that trackability in axial seal is not enough, it is ensured that axial seal lip is good with inner oil seal end face
Good contact.
On the basis of technique scheme, this utility model can also do following improvement.
Further, the annular sealing surface of described radial direction primary seal lip and axial primary seal lip is equipped with spiral
Backflash.
Using above-mentioned further scheme to provide the benefit that, the existence of spiral backflash makes two primary seals
Lip all has spiral oil return ability, achieves two stage pump and sucks back oil effect, it is achieved product on a product
Oil return.
Further, below described rubber elastomer and between inner oil seal body, also it is bonded with nonwoven layer, described
Nonwoven layer and inner oil seal body contact site are provided with non-woven fabrics dust excluder lips.
Use above-mentioned further technical scheme to provide the benefit that, the dust-proof effect of oil sealing can be improved.
Further, described rubber elastomer bottom is provided with rubber elastomer dust excluder lips.
Use above-mentioned further technical scheme to provide the benefit that, the dust-proof effect of oil sealing can be improved further
Really.
Further, described PTFE lips bottom is provided with PTFE dust excluder lips.
Above-mentioned further technical scheme is used to provide the benefit that so that the dust-proof effect of oil sealing carries further
High.
This utility model also provides for a kind of technical scheme solving above-mentioned technical problem, as follows:
A kind of vehicle bidirectional seals rotary oil seal, including in hollow cylinder and upper end has the end that stretches out
The inner oil seal body in face and the outer oil seal body being positioned at its outer side-lower, the outside of described outer oil seal body and medial extremity
All it is connected with rubber elastomer on face, it is characterised in that described rubber elastomer is near inner oil seal body side
Being bonded with PTFE lips, described PTFE lips contacts with inner oil seal body at a slant, described PTFE lips
It is provided with radially primary seal lip, described PTFE lips and interior oil with the cylindrical anchor ring contact site of inner oil seal body
The end contact position of envelope body is provided with axial primary seal lip.
The beneficial effects of the utility model are:
1) be simultaneously achieved axially and radial seal, axial seal can the resistance to ability of beating of improving product,
The resistance to play ability of radial seal improving product；
2) using PTFE to vulcanize with rubber elastomer, rubber elastomer compensate for PTFE lips and exists
The defect that trackability in axial seal is not enough, it is ensured that axial seal lip is good with inner oil seal end face
Good contact.
Further, the annular sealing surface of described radial direction primary seal lip and axial primary seal lip is equipped with spiral
Backflash.
Using above-mentioned further technical scheme to provide the benefit that, the existence of spiral backflash makes two masters
Sealing lip all has spiral oil return ability, achieves two stage pump and suck back oil effect on a product, it is achieved
The oil return of product.
Further, below described rubber elastomer and between inner oil seal body, also it is bonded with nonwoven layer, described
Nonwoven layer and inner oil seal body contact site are provided with non-woven fabrics dust excluder lips.
Use above-mentioned further technical scheme to provide the benefit that, the dust-proof effect of oil sealing can be improved.
Further, described rubber elastomer bottom is provided with rubber elastomer dust excluder lips.
Use above-mentioned further technical scheme to provide the benefit that, the dust-proof effect of oil sealing can be improved further
Really.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of this utility model two way seal rotary oil seal；
Fig. 2 is the structural representation of this utility model embodiment 1；
Fig. 3 is the structural representation of this utility model embodiment 2；
Fig. 4 is the structural representation of this utility model embodiment 3；
In Fig. 2-4,1, inner oil seal body；2, outer oil seal body；3, rubber elastomer；4, PTFE lip
Sheet；5, radially primary seal lip；6, axial primary seal lip；7, spiral backflash；8, nonwoven layer；
9, non-woven fabrics dust excluder lips；10, rubber elastomer dust excluder lips
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with example, example is served only for solving
Release this utility model, be not intended to limit scope of the present utility model.
Embodiment 1:
As in figure 2 it is shown, a kind of vehicle bidirectional seals rotary oil seal, including in hollow cylinder and upper end has
There is the inner oil seal body 1 of the end face that stretches out and be positioned at the outer oil seal body 2 of its outer side-lower, outer oil seal body 2
Outside and inner side end on be all connected with rubber elastomer 3, described rubber elastomer 3 is near inner oil seal
Body 1 side is bonded with PTFE lips 4, described PTFE lips 4 at a slant with the cylindrical of inner oil seal body 1
Annular face contacts, described PTFE lips 4 is provided with the most main with the cylindrical anchor ring contact site of inner oil seal body 1
Sealing lip 5, described rubber elastomer 3 is provided with the most main with the upper end contact site of inner oil seal body 1
Sealing lip 6, is radially equipped with spiral on the annular sealing surface of primary seal lip 5 and axial primary seal lip 6 and returns
Chute 7.
Embodiment 2:
As it is shown on figure 3, a kind of vehicle bidirectional seals rotary oil seal, including in hollow cylinder and upper end has
There is the inner oil seal body 1 of the end face that stretches out and be positioned at the outer oil seal body 2 of its outer side-lower, outer oil seal body 2
Outside and inner side end on be all connected with rubber elastomer 3, described rubber elastomer 3 is near inner oil seal
Body 1 side is bonded with PTFE lips 4, described PTFE lips 4 at a slant with the cylindrical of inner oil seal body 1
Annular face contacts, described PTFE lips 4 is provided with the most main with the cylindrical anchor ring contact site of inner oil seal body 1
Sealing lip 5, described rubber elastomer 3 is provided with the most main with the upper end contact site of inner oil seal body 1
Sealing lip 6, is radially equipped with spiral on the annular sealing surface of primary seal lip 5 and axial primary seal lip 6 and returns
Chute 7, is also bonded with nonwoven layer 8, institute below described rubber elastomer 3 and between inner oil seal body 1
State nonwoven layer 8 and be provided with non-woven fabrics dust excluder lips 9, described rubber elastomer with inner oil seal body 1 contact site
3 bottoms are additionally provided with rubber elastomer dust excluder lips 10.
Embodiment 3:
As shown in Figure 4, a kind of vehicle bidirectional seals rotary oil seal, including in hollow cylinder and upper end has
There is the inner oil seal body 1 of the end face that stretches out and be positioned at the outer oil seal body 2 of its outer side-lower, outer oil seal body 2
Outside and inner side end on be all connected with rubber elastomer 3, described rubber elastomer 3 is near inner oil seal
Body 1 side is bonded with PTFE lips 4, and described PTFE lips 4 contacts with inner oil seal body 1 at a slant,
Described PTFE lips 4 is provided with radially primary seal lip 5, institute with the cylindrical anchor ring contact site of inner oil seal body 1
The upper end contact site stating PTFE lips 4 and inner oil seal body 1 is provided with axial primary seal lip 6, radially
Spiral backflash 7, described rubber it is equipped with on the annular sealing surface of primary seal lip 5 and axial primary seal lip 6
Also be bonded with nonwoven layer 8 below glue elastomer 3 and between inner oil seal body 1, described nonwoven layer 8 with
Inner oil seal body 1 contact site is provided with non-woven fabrics dust excluder lips 9, and described rubber elastomer 3 bottom is additionally provided with rubber
Glue elastomer dust excluder lips 10.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (9)
1. vehicle bidirectional seals a rotary oil seal, including in hollow cylinder and upper end has to extension
Stretch the inner oil seal body of end face and be positioned at the outer oil seal body of its outer side-lower, the outside of described outer oil seal body and interior
All it is connected with rubber elastomer on side end face, it is characterised in that described rubber elastomer is near inner oil seal body
Side is bonded with PTFE lips, and described PTFE lips is provided with the cylindrical anchor ring contact site of inner oil seal body
Radially primary seal lip, described rubber elastomer is provided with axial primary seal with the end contact position of inner oil seal body
Lip.
A kind of vehicle bidirectional the most according to claim 1 seals rotary oil seal, it is characterised in that
It is equipped with spiral backflash on the annular sealing surface of described radial direction primary seal lip and axial primary seal lip.
A kind of vehicle bidirectional the most according to claim 1 and 2 seals rotary oil seal, and its feature exists
In, also it is bonded with nonwoven layer, described nonwoven layer below described rubber elastomer and between inner oil seal body
It is provided with non-woven fabrics dust excluder lips with inner oil seal body contact site.
A kind of vehicle bidirectional the most according to claim 3 seals rotary oil seal, it is characterised in that
Described rubber elastomer bottom is provided with rubber elastomer dust excluder lips.
A kind of vehicle bidirectional the most according to claim 1 and 2 seals rotary oil seal, and its feature exists
In, described PTFE lips bottom is provided with PTFE dust excluder lips.
6. vehicle bidirectional seals a rotary oil seal, including in hollow cylinder and upper end has to extension
Stretch the inner oil seal body of end face and be positioned at the outer oil seal body of its outer side-lower, the outside of described outer oil seal body and interior
All it is connected with rubber elastomer on side end face, it is characterised in that described rubber elastomer is near inner oil seal body
Side is bonded with PTFE lips, and described PTFE lips contacts with inner oil seal body at a slant, described PTFE
The cylindrical anchor ring contact site of lips and inner oil seal body is provided with radially primary seal lip, described PTFE lips with
The end contact position of inner oil seal body is provided with axial primary seal lip.
A kind of vehicle bidirectional the most according to claim 6 seals rotary oil seal, it is characterised in that
It is equipped with spiral backflash on the annular sealing surface of described radial direction primary seal lip and axial primary seal lip.
8. sealing rotary oil seal according to a kind of vehicle bidirectional described in claim 6 or 7, its feature exists
In, also it is bonded with nonwoven layer, described nonwoven layer below described rubber elastomer and between inner oil seal body
It is provided with non-woven fabrics dust excluder lips with inner oil seal body contact site.
A kind of vehicle bidirectional the most according to claim 8 seals rotary oil seal, it is characterised in that
Described rubber elastomer bottom is provided with rubber elastomer dust excluder lips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171770.7U CN205503990U (en) | 2016-03-07 | 2016-03-07 | Rotatory oil blanket of automobile -used two way seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171770.7U CN205503990U (en) | 2016-03-07 | 2016-03-07 | Rotatory oil blanket of automobile -used two way seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503990U true CN205503990U (en) | 2016-08-24 |
Family
ID=56726379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620171770.7U Active CN205503990U (en) | 2016-03-07 | 2016-03-07 | Rotatory oil blanket of automobile -used two way seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503990U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570463A (en) * | 2016-03-07 | 2016-05-11 | 烟台润蚨祥油封有限公司 | Two-way sealing rotating oil seal for vehicle |
| CN110630745A (en) * | 2018-06-25 | 2019-12-31 | Nok株式会社 | Sealing device |
| CN112212010A (en) * | 2020-10-19 | 2021-01-12 | 清华大学 | Magnetic liquid sealing device for sealing dust |
| US10934970B2 (en) | 2018-09-10 | 2021-03-02 | Caterpillar Inc. | Crankshaft seal |
| CN113602748A (en) * | 2021-10-08 | 2021-11-05 | 烟台润蚨祥油封有限公司 | Feeding device for processing rotary oil seal |
-
2016
- 2016-03-07 CN CN201620171770.7U patent/CN205503990U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570463A (en) * | 2016-03-07 | 2016-05-11 | 烟台润蚨祥油封有限公司 | Two-way sealing rotating oil seal for vehicle |
| 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 |
| US10934970B2 (en) | 2018-09-10 | 2021-03-02 | Caterpillar Inc. | Crankshaft seal |
| CN112212010A (en) * | 2020-10-19 | 2021-01-12 | 清华大学 | Magnetic liquid sealing device for sealing dust |
| CN113602748A (en) * | 2021-10-08 | 2021-11-05 | 烟台润蚨祥油封有限公司 | Feeding device for processing rotary oil seal |
| CN113602748B (en) * | 2021-10-08 | 2021-11-30 | 烟台润蚨祥油封有限公司 | Feeding device for processing rotary oil seal |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |