CN201526638U - Protection case for oil seal - Google Patents
Protection case for oil seal Download PDFInfo
- Publication number
- CN201526638U CN201526638U CN 200920191198 CN200920191198U CN201526638U CN 201526638 U CN201526638 U CN 201526638U CN 200920191198 CN200920191198 CN 200920191198 CN 200920191198 U CN200920191198 U CN 200920191198U CN 201526638 U CN201526638 U CN 201526638U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- oil seal
- oil sealing
- protecting jacket
- oil
- Prior art date
- 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.)
- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a protection case for oil seal, comprising a piston rod and an oil seal, wherein a piston rod chamfer is provided on the piston rod and an oil seal lip mouth is provided on the oil seal and an oil seal protection sleeve is covered on the piston rod chamfer and the outer surface of the oil seal protection sleeve is in smooth fit with the outer surface of the piston rod. The beneficial effect of the utility model are that: the oil seal lip mouth is in smooth fit with the contact surface of the piston rod because the protection sleeve for oil seal covers the piston rod chamfer. The oil seal lip mouth is protected from being scraped by the piston rod chamfer and the service life of the device is prolonged and the oil seal performance and the stability are increased.
Description
Technical field
The utility model relates to a kind of protecting jacket, more specifically says, it relates to a kind of oil sealing protecting jacket.
Background technique
In vibration damper, oil sealing is the vitals of travel axis sealing, and its predominant use is to contact the leakage that prevents lubricant oil by oil seal lip with axle or housing, can prevent that also external dust and muddy water from entering in the oil pocket.It is very important keeping the sealing and the working life of oil seal lip.And the piston rod chamfering is generally all arranged on the piston rod, and when piston rod was movable, oil seal lip was damaged by the place's scratch of piston rod chamfering easily, caused the sealing of oil seal lip to descend, and shorten working life.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of oil seal lip of protecting not to be subjected to the piston rod chamfering to scrape the oil sealing protecting jacket of damage.
A kind of oil sealing protecting jacket of the present utility model; comprise piston rod and oil sealing, piston rod is provided with the piston rod chamfering, and oil sealing is provided with oil seal lip; the piston rod chamfering is coated with the oil sealing protecting jacket, and described oil sealing protecting jacket outer surface smoothly mates mutually with the piston rod outer surface.
Described oil sealing matches with the oil sealing protecting jacket and is connected, and wherein oil seal lip contacts with the oil sealing protecting jacket.
Described oil sealing protecting jacket is shaped as level and smooth cylindrical body, and end diameter diminishes gradually.
The effect that the utility model is useful: owing to adopt technique scheme, the oil sealing that the utility model provides has coated the piston rod chamfering with protecting jacket, makes the surface of contact of oil seal lip and piston rod smoothly mate.Protected oil seal lip not to be subjected to the piston rod chamfering to scrape damage, prolonged service life of equipment, and oil sealing performance and stability all there are raising.
Description of drawings
Fig. 1 is the utility model embodiment's a main cut-away view.
Description of reference numerals: oil sealing 1; Piston rod 2; Oil sealing protecting jacket 3; Oil seal lip 4; Piston rod chamfering 5.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.Though the utility model will be described in conjunction with preferred embodiment, should know, do not represent that the utility model is limited among the described embodiment.On the contrary, the utility model will be contained alternative, modified model and the equivalent in the scope of the present utility model that can be included in attached claims qualification.
Referring to Fig. 1, the oil sealing of Jie Shaoing generally is used for the supporting use of damper link oil sealing with protecting jacket here, yet should know, the utility model also can be used for the matching used structure of other oil sealing needs.This oil sealing protecting jacket; comprise piston rod 2 and oil sealing 1, piston rod is provided with piston rod chamfering 5, and oil sealing 1 is provided with oil seal lip 4; piston rod chamfering 5 is coated with oil sealing protecting jacket 3, and described oil sealing protecting jacket 3 outer surfaces smoothly mate mutually with piston rod 2 outer surfaces.Described oil sealing 1 matches with oil sealing protecting jacket 3, and wherein oil seal lip 4 contacts with oil sealing protecting jacket 3.Described oil sealing protecting jacket 3 is shaped as level and smooth cylindrical body, and end diameter diminishes gradually.
Because piston-rod end generally all is provided with piston rod chamfering 5; and the piston-rod end diameter is also little than remaining part; cause oil seal lip 4 easily because piston rod chamfering 5 is impaired,, make the oil seal lip 4 and the surface of contact of piston rod smoothly mate by outside piston rod chamfering 5, coating oil sealing protecting jacket 3.Protection oil seal lip 4 is not damaged by piston rod chamfering 5, and has improved the sealing and the stability of oil sealing 1.
Claims (3)
1. oil sealing protecting jacket; comprise piston rod (2) and oil sealing (1); piston rod is provided with piston rod chamfering (5); oil sealing (1) is provided with oil seal lip (4); it is characterized in that: described piston rod chamfering (5) is coated with oil sealing protecting jacket (3), and described oil sealing protecting jacket (3) outer surface smoothly mates mutually with piston rod (2) outer surface.
2. oil sealing protecting jacket according to claim 1 is characterized in that: described oil sealing (1) and oil sealing protecting jacket (3) are and are connected, and wherein oil seal lip (4) contacts with oil sealing protecting jacket (3).
3. oil sealing protecting jacket according to claim 1 and 2 is characterized in that: described oil sealing protecting jacket (3) is shaped as level and smooth cylindrical body, and end diameter diminishes gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920191198 CN201526638U (en) | 2009-08-11 | 2009-08-11 | Protection case for oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920191198 CN201526638U (en) | 2009-08-11 | 2009-08-11 | Protection case for oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526638U true CN201526638U (en) | 2010-07-14 |
Family
ID=42517924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920191198 Expired - Fee Related CN201526638U (en) | 2009-08-11 | 2009-08-11 | Protection case for oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831776A (en) * | 2014-02-28 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Auxiliary tool for DCT clutch seal cover oil seal assembly |
| CN109027236A (en) * | 2018-09-17 | 2018-12-18 | 嘉科（安徽）密封技术有限公司 | A kind of PTFE oil sealing with protective case |
-
2009
- 2009-08-11 CN CN 200920191198 patent/CN201526638U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831776A (en) * | 2014-02-28 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Auxiliary tool for DCT clutch seal cover oil seal assembly |
| CN103831776B (en) * | 2014-02-28 | 2016-03-02 | 安徽江淮汽车股份有限公司 | A kind of aid of DCT clutch seal cover oil sealing assembling |
| CN109027236A (en) * | 2018-09-17 | 2018-12-18 | 嘉科（安徽）密封技术有限公司 | A kind of PTFE oil sealing with protective case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20180811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |