CN202746477U - Shock absorber piston capable of improving shock absorption oil leakage amount and stabilizing damping effect - Google Patents
Shock absorber piston capable of improving shock absorption oil leakage amount and stabilizing damping effect Download PDFInfo
- Publication number
- CN202746477U CN202746477U CN 201220463257 CN201220463257U CN202746477U CN 202746477 U CN202746477 U CN 202746477U CN 201220463257 CN201220463257 CN 201220463257 CN 201220463257 U CN201220463257 U CN 201220463257U CN 202746477 U CN202746477 U CN 202746477U
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- Prior art keywords
- piston
- piston ring
- shock absorber
- oil leakage
- ring
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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 shock absorber piston capable of improving a shock absorption oil leakage amount and stabilizing a damping effect. The shock absorber piston comprises a piston, wherein a piston ring slot is formed in the outer ring of the piston; a piston ring is arranged in the piston ring slot; the inner ring of the piston ring is a conical surface; and an axial clearance between the piston ring and the piston ring slot of the piston is more than 0.5 mm. Matching between the piston ring and the piston ring slot is improved; the self-swelling theory of the piston ring under the action of pressure of shock absorption oil can be effectively used; leakage of the shock absorption oil during recovery is reduced; the recovery damping force is stabilized; and therefore, the shock absorption effect of a shock absorber is guaranteed.
Description
Technical field
The utility model relates to a kind of vibration damper, is specifically related to a kind of shock absorber piston that can improve damping oil leakage rate and stable damping.
Background technique
The front and back vibration damper of existing motorcycle, electric motor car and bicycle, the piston ring internal-and external diameter of its piston adopts cylindrical structural, and the material of piston ring adopts strengthens nylon or polyoxymethylene or other modified plasticss.
This piston ring has the material large shortcoming of hydraulic coupling hard, that need when being out of shape, the piston ring groove that adds upper piston adopts design at the bottom of the cylindrical groove, do not possess that the auxiliary piston ring rises outward and auxiliaryly damping oil is introduced the piston ring bottom and piston ring is produced from the function that rises, vibration damper damping oil leakage rate in recuperation is large; Perhaps the damping oil leakage rate is large under certain high recovery speed, and the recovery damping is unstable, and damping effect is poor.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of shock absorber piston that can improve damping oil leakage rate and stable damping, and it can improve damping oil leakage rate and stable damping.
For solving the problems of the technologies described above, the technical solution that the utility model can improve the shock absorber piston ring of damping oil leakage rate and stable damping is:
Comprise piston, the outer ring of piston is provided with piston ring groove, is provided with piston ring in the piston ring groove; The inner ring of piston ring is conical surface.
Axial clearance between the piston ring groove of described piston ring and piston is greater than 0.5mm.
Described piston ring adopts polytetrafluoroethylmaterial material.
The technique effect that the utility model can reach is:
The utility model has improved cooperating of piston ring and piston ring groove, can effectively utilize the principle that certainly rises of damping oil pressure-acting lower piston ring, reduces the leakage of damping oil in recuperation, stablizes recovery damping force, thereby guarantees the damping effect of vibration damper.
The utility model is rational in infrastructure, easy to manufacture, cost is low, peace and quiet are comfortable.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the schematic representation that the utility model can improve the shock absorber piston of damping oil leakage rate and stable damping;
Fig. 2 is the schematic representation of piston ring of the present utility model.
Description of reference numerals among the figure:
1 is piston, and 2 is piston ring,
3 is piston ring groove.
Embodiment
As shown in Figure 1, the utility model can improve the shock absorber piston of damping oil leakage rate and stable damping, comprises piston 1, and the outer ring of piston 1 is provided with piston ring groove 3, is provided with piston ring 2 in the piston ring groove 3;
As shown in Figure 2, the inner ring of piston ring 2 is conical surface, and the larger diameter end of piston ring 2 internal conical surfaces is towards the recovery moving direction of vibration damper during assembling;
Axial clearance H1 between the piston ring groove 3 of piston ring 2 and piston 1 is greater than 0.5mm;
Piston ring 2 adopts little, the soft teflon of friction factor, and outside spreading when guaranteeing that piston ring 2 is subjected to minimum hydraulic coupling is adjacent to warp in the clutch release slave cylinder, reduces the leakage of damping oil.
Working principle of the present utility model is as follows:
When recuperation begins, piston ring 2 moves to the opposite direction of restoring motion under effect of inertia, piston ring 2 is transformed to recovery moving direction one end with the axial clearance of piston ring groove 3, damping oil under the recovery pressure enters the space between piston ring groove 3 bottoms and the piston ring 2, internal diameter conical surface at piston ring 2 produces radially outer pressure and thrust backward, the external diameter of pushing piston ring 2 and clutch release slave cylinder and piston ring groove 3 restore motion opposite direction end and are adjacent to, eliminate or reduce the leakage of damping oil, play the effect of stablize the good damping effect of damping force and maintenance.
The utility model is applicable to the front and back vibration damper of motorcycle, electric motor car and bicycle.
Claims (3)
1. shock absorber piston that can improve damping oil leakage rate and stable damping, it is characterized in that: comprise piston, the outer ring of piston is provided with piston ring groove, is provided with piston ring in the piston ring groove; The inner ring of piston ring is conical surface.
2. the shock absorber piston that can improve damping oil leakage rate and stable damping according to claim 1, it is characterized in that: the axial clearance between the piston ring groove of described piston ring and piston is greater than 0.5mm.
3. the shock absorber piston that can improve damping oil leakage rate and stable damping according to claim 1 is characterized in that: described piston ring employing polytetrafluoroethylmaterial material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220463257 CN202746477U (en) | 2012-09-12 | 2012-09-12 | Shock absorber piston capable of improving shock absorption oil leakage amount and stabilizing damping effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220463257 CN202746477U (en) | 2012-09-12 | 2012-09-12 | Shock absorber piston capable of improving shock absorption oil leakage amount and stabilizing damping effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746477U true CN202746477U (en) | 2013-02-20 |
Family
ID=47705876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220463257 Expired - Fee Related CN202746477U (en) | 2012-09-12 | 2012-09-12 | Shock absorber piston capable of improving shock absorption oil leakage amount and stabilizing damping effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746477U (en) |
-
2012
- 2012-09-12 CN CN 201220463257 patent/CN202746477U/en not_active Expired - Fee Related
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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: ZHEJIANG MINGZHEN MACHINERY MANUFACTURING CO., LTD Free format text: FORMER OWNER: YU JIANZHONG Effective date: 20130502 Free format text: FORMER OWNER: ZHEJIANG MINGZHEN MACHINERY MANUFACTURING CO., LTD. Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 614499 LESHAN, SICHUAN PROVINCE TO: 317000 TAIZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: The coastal city of Taizhou City, Zhejiang province 317000 Duqiao ODA Patentee after: Zhejiang Mingzhen Machinery Manufacturing Co., Ltd. Address before: The town of Qianwei County in Sichuan province 614499 Leshan Huhe village 1 Group No. 46 Patentee before: Yu Jianzhong Patentee before: Zhejiang Mingzhen Machinery Manufacturing Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130912 |