CN208565560U - A kind of oil seal assembly of engine cam - Google Patents
A kind of oil seal assembly of engine cam Download PDFInfo
- Publication number
- CN208565560U CN208565560U CN201821235151.5U CN201821235151U CN208565560U CN 208565560 U CN208565560 U CN 208565560U CN 201821235151 U CN201821235151 U CN 201821235151U CN 208565560 U CN208565560 U CN 208565560U
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- Prior art keywords
- rubber
- self
- lip
- rubber bodies
- helical spring
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Abstract
The utility model relates to technical field of automobile parts, and disclose a kind of oil seal assembly of engine cam, including rubber bodies, the inside of the rubber bodies is connected with skeleton, preceding chamfering is provided at the top of the rubber external surface, the bottom of the rubber external surface is provided with rear chamfering, the side of the rubber intracoelomic cavity is connected with self-tightening helical spring I, primary seal lip is provided at the top of the rubber bodies inner wall, the centre of the rubber bodies inner wall is provided with secondary sealing lip, is connected with self-tightening helical spring II at the top of the secondary sealing lip.The oil seal assembly of the engine cam, pass through the mutual cooperation of self-tightening helical spring I and primary seal lip, increase the circulation of oil sealing inner air, improve the heat dissipation effect of oil sealing, and multi-sealed sheet rubber can be good at being sealed oil liquid, the leakproofness of device is improved, to solve the problems, such as that thermal diffusivity is poor, improves the service life of oil sealing.
Description
Technical field
The utility model relates to technical field of automobile parts, specially a kind of oil seal assembly of engine cam.
Background technique
Camshaft is a component in piston engine, its effect is to control the unlatching and closed action of valve, by
It is related to the power and service performance of an engine in valve motion rule, therefore camshaft design is in the design of engine
In occupation of highly important status in journey, after camshaft installation in order to prevent oil leak and prevent dust, moisture, impurity into
Enter, needs to be set with oil sealing on camshaft.
Existing oil sealing often only one sealing lip, spring can be weakened using elasticity after long, so that leakproofness drops
It is low, it is easy to produce the situation of leakage of oil, and rotary flange is constantly in high-speed rotating state, the heat of yield when friction
It can not quickly spread, temperature rises the too fast service life reduction for making oil sealing.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of oil seal assembly of engine cam, has double
The advantages that resealing lip seal effect is good, thermal diffusivity is good, solves that single sealing lip sealing effect is poor, thermal diffusivity is poor
Problem.
(2) technical solution
To realize that above-mentioned dual-seal lip seal effect is good, the good purpose of thermal diffusivity, the utility model provides following skill
Art scheme: a kind of oil seal assembly of engine cam, including rubber bodies, the inside of the rubber bodies is connected with skeleton, described
Preceding chamfering is provided at the top of rubber external surface, the bottom of the rubber external surface is provided with rear chamfering, the rubber bodies
The side of inner cavity is connected with self-tightening helical spring I, is provided with primary seal lip at the top of the rubber bodies inner wall, in the rubber bodies
The centre of wall is provided with secondary sealing lip, and self-tightening helical spring II, the rubber intracoelomic cavity are connected at the top of the secondary sealing lip
Bottom be provided with dustproof lip.
Preferably, the shape of the primary seal lip is formed as combined by several equally distributed rectangular rubber pieces, and every
Distance values between two sheet rubbers are 1mm.
Preferably, the position of the self-tightening helical spring I and the position of primary seal lip are in same level height, and self-tightening
The position of helical spring I is located at the top of self-tightening helical spring II.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of oil seal assembly of engine cam, and having following has
Beneficial effect:
1, the oil seal assembly of the engine cam is increased by the mutual cooperation of self-tightening helical spring I and primary seal lip
The circulation of oil sealing inner air, improves the heat dissipation effect of oil sealing, and multi-sealed sheet rubber can be good to oil
Liquid is sealed, and improves the leakproofness of device, to solve the problems, such as that thermal diffusivity is poor, improve oil sealing uses the longevity
Life.
2, the oil seal assembly of the engine cam passes through self-tightening helical spring I and secondary sealing lip, self-tightening helical spring II
Mutual cooperation, for camshaft carry out double-layer seal, convenient for being preferably sealed protection to camshaft, to solve
The poor problem of single sealing lip sealing effect, improves the sealing performance of device.
Detailed description of the invention
Fig. 1 is the utility model surface structure schematic diagram；
Fig. 2 is to split structural schematic diagram inside the utility model.
In figure: 1, rubber bodies；2, skeleton；3, preceding chamfering；4, rear chamfering；5, self-tightening helical spring I；6, primary seal lip；7,
Secondary sealing lip；8, self-tightening helical spring II；9, dustproof lip.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of oil seal assembly of engine cam referring to FIG. 1-2, including rubber bodies 1, the inside clamping of rubber bodies 1
There is skeleton 2, chamfering 3 before being provided at the top of 1 outer surface of rubber bodies, the bottom of 1 outer surface of rubber bodies is provided with rear chamfering 4, rubber
The side of 1 inner cavity of colloid is connected with self-tightening helical spring I 5, and the position of self-tightening helical spring I 5 and the position of primary seal lip 6 are in
Same level height, and the position of self-tightening helical spring I 5 is located at the top of self-tightening helical spring II 8, since spring uses the time
It is too long then it is elastic can reduce, sealing effect can also have a greatly reduced quality, therefore can enhance the close of oil sealing along with a sealing lip
Effect is sealed, is provided with primary seal lip 6 at the top of 1 inner wall of rubber bodies, the shape of primary seal lip 6 is by several equally distributed rectangles
It is formed combined by sheet rubber, and the distance values between every two sheet rubber are 1mm, by rectangular rubber piece to the surface of camshaft
It is sealed, while can also play good heat dissipation effect to oil sealing, prevent oil sealing temperature is excessively high from service life being caused to reduce
The case where occur, the centre of 1 inner wall of rubber bodies is provided with secondary sealing lip 7, and the top of secondary sealing lip 7 is connected with self-tightening helical spring
II 8, the bottom of 1 inner cavity of rubber bodies is provided with dustproof lip 9, and the effect of dustproof lip 9 is to prevent extraneous moisture, dust and other
Impurity enters the inside of camshaft, and the service life of camshaft is caused to reduce.
When work, after oil sealing is inserted in camshaft first, camshaft and the surface of primary seal lip 6 are squeezed, so that
Primary seal lip 6 is deformed, while I 5 pairs of primary seal lips 6 of self-tightening helical spring generate a thrust and make primary seal lip 6 will be convex
Shaft compression is taken turns, the leakproofness of oil sealing is improved, since primary seal lip 6 is composed of several rectangular rubber pieces, can rise
To good heat dissipation effect, prevent temperature is excessively high from causing oil sealing service life reduction, while self-tightening helical spring II 8 is also to secondary sealing lip
7 apply a thrust, by secondary sealing lip 7 and cam shaft compression, strengthen the sealing performance of oil sealing, and primary seal lip 6 and pair
Sealing lip 7 plays dual sealing functions, significant sealing affection enhancing.
In conclusion the oil seal assembly of the engine cam, pass through the mutual of self-tightening helical spring I 5 and primary seal lip 6
Cooperation, increases the circulation of oil sealing inner air, improves the heat dissipation effect of oil sealing, and multi-sealed sheet rubber can be very
Good is sealed oil liquid, improves the leakproofness of device, to solve the problems, such as that thermal diffusivity is poor, improves oil sealing
Service life；By the mutual cooperation of self-tightening helical spring I 5 and secondary sealing lip 7, self-tightening helical spring II 8, for camshaft
Double-layer seal is carried out, convenient for being preferably sealed protection to camshaft, so that it is poor to solve single sealing lip sealing effect
The problem of, the sealing performance of device is improved, solves the problems, such as that single sealing lip sealing effect is poor, thermal diffusivity is poor.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of oil seal assembly of engine cam, including rubber bodies (1), it is characterised in that: the inside of the rubber bodies (1)
It is connected with skeleton (2), is provided with preceding chamfering (3) at the top of rubber bodies (1) outer surface, rubber bodies (1) outer surface
Bottom is provided with rear chamfering (4), and the side of rubber bodies (1) inner cavity is connected with self-tightening helical spring I (5), the rubber bodies
(1) it is provided at the top of inner wall primary seal lip (6), the centre of rubber bodies (1) inner wall is provided with secondary sealing lip (7), described
Self-tightening helical spring II (8) is connected at the top of secondary sealing lip (7), the bottom of rubber bodies (1) inner cavity is provided with dustproof lip
(9).
2. a kind of oil seal assembly of engine cam according to claim 1, it is characterised in that: the primary seal lip
(6) shape is formed as combined by several equally distributed rectangular rubber pieces, and the distance values between every two sheet rubber are
1mm。
3. a kind of oil seal assembly of engine cam according to claim 1, it is characterised in that: the self-tightening spiral bullet
The position of spring I (5) and the position of primary seal lip (6) are in same level height, and the position of self-tightening helical spring I (5) is located at
The top of self-tightening helical spring II (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235151.5U CN208565560U (en) | 2018-08-02 | 2018-08-02 | A kind of oil seal assembly of engine cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235151.5U CN208565560U (en) | 2018-08-02 | 2018-08-02 | A kind of oil seal assembly of engine cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565560U true CN208565560U (en) | 2019-03-01 |
Family
ID=65449260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821235151.5U Expired - Fee Related CN208565560U (en) | 2018-08-02 | 2018-08-02 | A kind of oil seal assembly of engine cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120660A (en) * | 2020-01-04 | 2020-05-08 | 戴红亮 | Double-lip oil seal |
-
2018
- 2018-08-02 CN CN201821235151.5U patent/CN208565560U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120660A (en) * | 2020-01-04 | 2020-05-08 | 戴红亮 | Double-lip oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20200802 |