CN2697386Y - Seal device for vibration-damper - Google Patents
Seal device for vibration-damper Download PDFInfo
- Publication number
- CN2697386Y CN2697386Y CN 200420034509 CN200420034509U CN2697386Y CN 2697386 Y CN2697386 Y CN 2697386Y CN 200420034509 CN200420034509 CN 200420034509 CN 200420034509 U CN200420034509 U CN 200420034509U CN 2697386 Y CN2697386 Y CN 2697386Y
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- CN
- China
- Prior art keywords
- sealing material
- vibration damper
- guide holder
- piston rod
- material workpiece
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a seal device for a vibration damper. The piston rod of the vibration damper is arranged on the shaft-core position of an oil-storing tube, and the guide holder of the piston rod and the sealing material piece which is provided with a skeleton and an oil seal spring are arranged between the inner wall of the oil-storing tube and the piston rod; wherein, the shape of the sealing material piece is changed to that the end face of the corresponding guide holder of the sealing material piece is provided with a recess, and the recess can be a rounded body, a square body, a cone body and a square cone body; one end where the guide holder matched with the recess is contacted with the sealing material piece is provided with a nose which is matched with the recess, and the outer-side cylindrical surface of the nose supports the inner wall surface of the recess; the shape of the nose corresponds to the recess on the sealing material piece, and the nose can be the rounded body, the square body, the cone body and the square cone body. The seal device for a vibration damper combines the advantages of low accuracy requirement for components, convenient assembly, good sealing effect, etc. as integration.
Description
Technical field
The utility model relates to a kind of seal arrangement of vibration damper, especially relates to a kind of seal arrangement of Motor Vehicle vibration damper.
Background technique
A Frequently Asked Questions in the using process of current mobility car is the bad oil leakage phenomenon that causes of shock absorber sealing, the be everlasting sealing part of reserve tube inwall of its leakage of oil position, normally adopt the rubber packing material that has skeleton and oil seal spring at the sealing position, its sealing principle is that the outside cylinder and the reserve tube inwall of rubber packing material fits tightly the formation sealing, promptly seals by rubber seal and the interference of reserve tube inwall.The shortcoming of this sealing configuration is: one, part precision is had relatively high expectations, promptly the internal diameter size of the outside dimension of rubber seal, reserve tube and surface condition all will directly have influence on the effect of sealing.What two, adopt because of rubber seal and reserve tube inwall is interference fit, and its assembling difficulty is bigger, and the damage in assembly process can make the sealability of rubber seal reduce, and causes sealing effect poor, and oil leakage phenomenon takes place often.The concrete structure of disclosed a kind of damper in Liu Weixin chief editor " Automobile Design " (publishing house of Tsing-Hua University, July calendar year 2001 front page) book the 660th page to 661 pages, its seal arrangement is identical with said structure.
Summary of the invention
The purpose of this utility model be to overcome the shortcoming of above-mentioned prior art and provide a kind of to element precision require lower, assembling easily, the seal arrangement of the vibration damper of good sealing effect.
The purpose of this utility model is achieved in that
In the seal arrangement of vibration damper of the present utility model, the structure and the principle of vibration damper do not change, piston rod still is arranged at the axle core position of reserve tube, between the inwall of reserve tube and piston rod, be provided with the guide holder of piston rod and have skeleton and the sealing material workpiece of oil seal spring, guide holder is that the axially reciprocating to piston rod leads, reduce the radial-play of piston rod, its end contacts with the end face of sealing material workpiece, the sealing material pieces is played an axially locating, wherein, the outside cylinder of sealing material workpiece cooperates with the inner wall sealing of reserve tube, the inboard aperture of sealing material workpiece and the contact position of piston rod are sealed and matched, the end face of changing into its corresponding guide holder in shape of sealing material workpiece is provided with a groove, and this groove can be circular body or square body;
Wherein, consider and the close fit of guide holder that the groove on the sealing material workpiece is cone or square cone preferably;
In order further to improve sealability, the contacted end of guide holder and sealing material workpiece is provided with the plush copper that is complementary with groove, and the outside cylinder of this plush copper and the internal face of groove lean;
Certainly, the shape of this plush copper is corresponding with the groove on the sealing material workpiece, promptly can be circular body or square body, preferably cone or square cone;
Working principle of the present utility model is as follows: at first oiling in reserve tube, when assembling finish and axially locating after, the local excircle dimension of the groove of sealing material workpiece and reserve tube endoporus form interference, obviously, pressure in reserve tube increases, pressure on the excircle of the groove of sealing material workpiece is also big more, and this just makes the excircle of sealing material workpiece and reserve tube inwall press tighter and tighter, thereby the phenomenon of having stopped leakage of oil takes place.
The utility model is compared with prior art following advantage:
Because the utility model has adopted the sealing material workpiece that has groove, cylindric than prior art, interference better effects if after it is stressed, this has just reduced the quality requirement of sealing material workpiece to a certain extent, also reduced the inner wall surface requirement of reserve tube, amplified as tolerance range scope sealing material workpiece and the reserve tube internal diameter size, the roughness of the inner wall surface of reserve tube requires to decrease, after this just made the required precision of parts reduce, its processing was easier; In addition, just because of the reduction of these requirements, the difficulty of assembling is also reduced, the external diameter of sealing material workpiece and the internal diameter of reserve tube can be designed to transition or Spielpassung, the assembling of being more convenient for; The most important thing is that by being used of guide holder and sealing material workpiece, the interference effect of the excircle of the groove of sealing material workpiece and reserve tube endoporus is better, and then has improved sealability greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a guide holder structural representation of the present utility model;
Fig. 3 is a sealing material workpiece structural representation of the present utility model.
Among the figure, piston rod 1, end cap 2, sealing material workpiece 3, skeleton 4, groove 5, plush copper 6, oil seal spring 7, guide holder 8, reserve tube 9.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: as Fig. 1,2, shown in 3, in the seal arrangement of this vibration damper, piston rod 1 is arranged at the axle core position of reserve tube 9, between the inwall of reserve tube 9 and piston rod 1, be provided with the guide holder 8 of piston rod 1 and have skeleton 4 and the rubber packing material spare 3 of oil seal spring 7, end cap 2 is fastened rubber packing material spare 3 in reserve tube 9, one end of guide holder 8 contacts with the end face of sealing material workpiece 3, wherein, the outside cylinder of sealing material workpiece 3 cooperates with the inner wall sealing of reserve tube 9, the contact position of the inboard aperture of sealing material workpiece 3 and piston rod 1 is sealed and matched, the end face of sealing material workpiece 3 corresponding guide holders 8 is provided with the groove 5 of a cone shape, guide holder 8 and sealing material workpiece 3 contacted ends are provided with the plush copper 6 of the cone shape that the groove 5 with cone shape is complementary, and the outside cylinder of this plush copper 6 and the internal face of groove 5 lean.
Claims (8)
1, a kind of seal arrangement of vibration damper, piston rod (1) is arranged at the axle core position of reserve tube (9), between the inwall of reserve tube (9) and piston rod (1), be provided with the guide holder (8) of piston rod (1) and have skeleton (4) and the sealing material workpiece (3) of oil seal spring (7), one end of guide holder (8) contacts with the end face of sealing material workpiece (3), wherein, the outside cylinder of sealing material workpiece (3) cooperates with the inner wall sealing of reserve tube (9), the contact position of the inboard aperture of sealing material workpiece (3) and piston rod (1) is sealed and matched, and it is characterized in that the end face of the corresponding guide holder of sealing material workpiece (3) (8) is provided with a groove (5).
2, the seal arrangement of vibration damper according to claim 1 is characterized in that described groove (5) is shaped as circular body or square body.
3, the seal arrangement of vibration damper according to claim 2 is characterized in that described groove (5) is shaped as cone.
4, the seal arrangement of vibration damper according to claim 2 is characterized in that described groove (5) side of being shaped as cone.
5, the seal arrangement of vibration damper according to claim 1, it is characterized in that described guide holder (8) and the contacted end of sealing material workpiece (3) are provided with the plush copper (6) that is complementary with groove (5), the internal face of outside cylinder of this plush copper (6) and groove (5) leans.
6, the seal arrangement of vibration damper according to claim 5, it is characterized in that described guide holder (8) plush copper (6) be shaped as circular body or square body.
7, the seal arrangement of vibration damper according to claim 6, it is characterized in that described guide holder (8) plush copper (6) be shaped as cone.
8, the seal arrangement of vibration damper according to claim 6 is characterized in that the side's of being shaped as cone of the plush copper (6) of described guide holder (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034509 CN2697386Y (en) | 2004-04-22 | 2004-04-22 | Seal device for vibration-damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034509 CN2697386Y (en) | 2004-04-22 | 2004-04-22 | Seal device for vibration-damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697386Y true CN2697386Y (en) | 2005-05-04 |
Family
ID=34773041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420034509 Expired - Fee Related CN2697386Y (en) | 2004-04-22 | 2004-04-22 | Seal device for vibration-damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697386Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135351B (en) * | 2006-08-29 | 2013-08-21 | Skf美国公司 | Seal with pyramid shaped formation |
| CN107906200A (en) * | 2017-10-17 | 2018-04-13 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
-
2004
- 2004-04-22 CN CN 200420034509 patent/CN2697386Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135351B (en) * | 2006-08-29 | 2013-08-21 | Skf美国公司 | Seal with pyramid shaped formation |
| CN107906200A (en) * | 2017-10-17 | 2018-04-13 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LONGCHANG SHANCHUAN SHOCK ABSORBER INDUSTRY CO., Free format text: FORMER OWNER: SHANCHUAN MACHINERY PLANT, SICHUAN Effective date: 20070518 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070518 Address after: 642177 Town, Longchang County, Sichuan Province Patentee after: Longchang landscape shock absorber Industry Co., Ltd. Address before: 642177 Town, Longchang County, Sichuan Province Patentee before: Shanchuan Machinery Plant, Sichuan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 |