CN202732827U - Vibration damper oil seal with wear-resistant dustproof lip - Google Patents
Vibration damper oil seal with wear-resistant dustproof lip Download PDFInfo
- Publication number
- CN202732827U CN202732827U CN 201220380121 CN201220380121U CN202732827U CN 202732827 U CN202732827 U CN 202732827U CN 201220380121 CN201220380121 CN 201220380121 CN 201220380121 U CN201220380121 U CN 201220380121U CN 202732827 U CN202732827 U CN 202732827U
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- CN
- China
- Prior art keywords
- wear
- piston rod
- dust excluder
- excluder lips
- dustproof lip
- 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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Abstract
The utility model belongs to the technical field of sealing elements, and particularly relates to a vibration damper oil seal with a wear-resistant dustproof lip. The vibration damper oil seal with the wear-resistant dustproof lip comprises a framework and a seal rubber body which are combined with each other, wherein the seal rubber body is provided with a main seal lip matched with the axial surface of a piston rod in a contact manner, as well as a dustproof lip; a PTFE (Polytetrafluoroethylene) patch is arranged at the contact part between the dustproof lip and the axial surface of the piston rod; and the dustproof lip and the axial surface of the piston rod are in interference fit with each other, so that the friction characteristic of the dustproof lip can be greatly improved and the stable sealing effect of the vibration damper oil seal is guaranteed.
Description
Technical field
The utility model belongs to the Sealing technical field, specifically, relates to a kind of shock absorber packing gland with wear-resisting dust excluder lips.
Background technique
For flatness and the travelling comfort of improving automobile running, the vibration of vehicle frame and vehicle body can be decayed rapidly, on the general automobile suspension system vibration damper is housed all; The vehicle shock absorber that extensively adopts at present is double adjustable shock absorber.As the seal element in the vibration damper, the vehicle shock absorber oil sealing generally is comprised of panel metal skeleton and sealed department; Sealed department generally adopts quality of rubber materials, and what wherein play main seal action is primary seal lip and dust excluder lips, and wherein primary seal lip is used for preventing the hydraulic oil leakage of work steel cylinder.Dust excluder lips is used for preventing that the foreign matters such as extraneous dust, gravel from entering oil sealing and piston rod matching part, to oil seal lip or axial plane injury, causes seal failure; In order to guarantee good dust-proof effect, the dust excluder lips piston rod adopts interference fit; In long-term using process, there be not good lubricating between dust excluder lips and the piston rod axial plane, substantially be in the dry grinding state.Aggravation along with wearing and tearing, the dust excluder lips of quality of rubber materials can be worn and torn gradually, reduce with the degree of adaptability of piston rod, even generation gap, thereby cause the foreign matters such as extraneous dust, grit can be by entering into the matching part of primary seal lip and piston rod, to primary seal lip or piston rod axial plane injury, cause leakage of oil, reduce effectiveness in vibration suppression until disappear.For this reason, need a kind of Sealing with better wear-resisting effect that can address the above problem, thereby satisfy the needs of actual conditions.
The model utility content
The utility model provides a kind of shock absorber packing gland with wear-resisting dust excluder lips, and it can solve the existing dust excluder lips of the Sealing leakage of oil easy to wear that is used at present vehicle shock absorber, and effectiveness in vibration suppression reduces, the problem that shorten working life.
The technological scheme that the utility model adopts is:
A kind of shock absorber packing gland with wear-resisting dust excluder lips comprises that skeleton and the caulking gum body of mutual combination, described caulking gum body are provided with to contact the primary seal lip that contacts and cooperate and and dust excluder lips with the piston rod axial plane.
In the technical solution of the utility model, also have following additional technical feature:
Described dust excluder lips and piston rod axial plane contact position arrange the PTFE paster, and thickness is 0.2mm-0.5mm.
Described caulking gum body is provided with secondary lip.
Described dust excluder lips and piston rod axial plane adopt interference fit.
Compared with prior art, advantage of the present utility model and good effect are: a kind of shock absorber packing gland with wear-resisting dust excluder lips of the present utility model, it can solve the existing dust excluder lips of the Sealing leakage of oil easy to wear that is used at present vehicle shock absorber, effectiveness in vibration suppression reduces, the problem that shorten working life.Owing to increased the paster of PTFE material at the dust excluder lips position of shock absorber packing gland, avoided rubber directly to contact with the piston rod axial plane, thereby avoided the rubber wearing and tearing; In long-term using process, because PTFE has extremely low friction factor, and has good self-lubricating property, therefore can guarantee in long-term the use, can not wear and tear; Simultaneously, sustainable stable fastening force, the mated condition that assurance PTFE paster and the maintenance of piston rod axial plane are stable, thereby the stable sealing effect of assurance shock absorber packing gland of providing of the dust excluder lips of caulking gum body.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is original vehicle shock absorber seal configuration schematic representation;
Fig. 2 is a kind of shock absorber packing gland structural representation with wear-resisting dust excluder lips of the present utility model.
Among the figure, 1 is skeleton, and 2 is the caulking gum body, and 3 is primary seal lip, and 4 is dust excluder lips, and 5 is secondary lip, and 6 is the PTFE sheet.
Embodiment
Embodiment
As shown in Figure 2, a kind of shock absorber packing gland with wear-resisting dust excluder lips, comprise it is characterized in that skeleton 1 and the caulking gum body 2 of mutual combination: described caulking gum body 2 is provided with the primary seal lip 3 that contacts and cooperate with the piston rod axial plane, and dust excluder lips 4; Described dust excluder lips 4 is provided with PTFE paster 6 with piston rod axial plane contact position; Described caulking gum body 2 is provided with secondary lip 5; Described dust excluder lips 4 adopts interference fit with the piston rod axial plane.
Like this in when work, a kind of shock absorber packing gland with wear-resisting dust excluder lips of the present utility model, its primary seal lip 3 contacts cooperation with the piston rod axial plane, prevents the hydraulic oil leakage in the work steel cylinder; Its dust excluder lips 4 arranges PTFE sheet 6 with piston rod axial plane contact position, has avoided caulking gum body 2 directly to contact with the piston rod axial plane, thereby has avoided the wearing and tearing of caulking gum body 2, improves the dry condition between dust excluder lips 4 and the piston rod; Its PTFE sheet 6 thickness adopt 0.2-0.5mm, dust excluder lips 4 by sulfuration process and caulking gum body 2 is combined into one, prevent that the foreign matters such as extraneous dust, gravel from entering oil sealing and piston rod matching part, to oil seal lip or axial plane injury, causes seal failure; Its caulking gum body 2 is provided with secondary lip 5, prevents extraneous dust, and impurity etc. enter machine intimate; Dust excluder lips 4 adopts interference fit with the piston rod axial plane, guarantees good dust-proof effect.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give all mode of executions exhaustive.Everyly belong to the row that apparent variation that the technical solution of the utility model amplifies out or change still are in protection domain of the present utility model.
Claims (4)
1. shock absorber packing gland with wear-resisting dust excluder lips, the skeleton (1) and the caulking gum body (2) that comprise mutual combination, it is characterized in that: described caulking gum body (2) is provided with the primary seal lip (3) that contacts and cooperate with the piston rod axial plane, and dust excluder lips (4).
2. a kind of shock absorber packing gland with wear-resisting dust excluder lips as claimed in claim 1 is characterized in that: described dust excluder lips (4) is provided with PTFE paster (6) with piston rod axial plane contact position, and thickness is 0.2mm-0.5mm.
3. a kind of shock absorber packing gland with wear-resisting dust excluder lips as claimed in claim 1, it is characterized in that: described caulking gum body (2) has been established secondary lip (5).
4. a kind of shock absorber packing gland with wear-resisting dust excluder lips as claimed in claim 1 or 2 is characterized in that: described dust excluder lips (4) and piston rod axial plane employing interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380121 CN202732827U (en) | 2012-08-02 | 2012-08-02 | Vibration damper oil seal with wear-resistant dustproof lip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380121 CN202732827U (en) | 2012-08-02 | 2012-08-02 | Vibration damper oil seal with wear-resistant dustproof lip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732827U true CN202732827U (en) | 2013-02-13 |
Family
ID=47658528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220380121 Expired - Fee Related CN202732827U (en) | 2012-08-02 | 2012-08-02 | Vibration damper oil seal with wear-resistant dustproof lip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410976A (en) * | 2013-09-05 | 2013-11-27 | 青岛开世密封工业有限公司 | Durable washing machine seal ring |
| CN107110366A (en) * | 2014-11-19 | 2017-08-29 | Ｋｙｂ株式会社 | Seal member and the fluid pressure device for possessing the seal member |
-
2012
- 2012-08-02 CN CN 201220380121 patent/CN202732827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410976A (en) * | 2013-09-05 | 2013-11-27 | 青岛开世密封工业有限公司 | Durable washing machine seal ring |
| CN107110366A (en) * | 2014-11-19 | 2017-08-29 | Ｋｙｂ株式会社 | Seal member and the fluid pressure device for possessing the seal member |
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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: 20130213 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |