CN202851803U - Shock absorber with flexible deformed sliding seal ring - Google Patents
Shock absorber with flexible deformed sliding seal ring Download PDFInfo
- Publication number
- CN202851803U CN202851803U CN201220484171.2U CN201220484171U CN202851803U CN 202851803 U CN202851803 U CN 202851803U CN 201220484171 U CN201220484171 U CN 201220484171U CN 202851803 U CN202851803 U CN 202851803U
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- China
- Prior art keywords
- guider
- seal ring
- sliding ring
- connecting rod
- vibration damper
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Abstract
The utility model relates to a shock absorber with a flexible deformed sliding seal ring. The shock absorber with the flexible deformed sliding seal ring is provided with a liquid storage barrel, a cylinder barrel, a connection rod and a guider. One end of the guider forms a diameter expansion part. A lining is arranged in the diameter expansion part. The sliding seal ring is sleeved on the connection rod. The sliding seal ring is arranged on the top of the lining. The top of the sliding seal ring can abut against the top surface of the diameter expansion part of the guider. The sliding seal ring comprises a seal ring body and a flexible seal body extending outwards from the peripheral edge of the seal ring body. The thickness of the flexible seal body is smaller than that of the seal ring body, and the periphery of the flexible seal body abuts against the inner circumference wall surface of the diameter expansion part of the guider. Whether in a low-speed compression travel or in a low-speed reversion travel, the flexible deformed sliding seal ring arranged in the shock absorber can achieve sealing. Through the adoption of the flexible deformed sliding seal ring, the force value of the shock absorber at a low speed is improved greatly, so that the controllability and the comfort of the shock absorber are improved greatly.
Description
Technical field
The utility model relates to a kind of vibration damper, especially a kind of vibration damper with pliability distortion sliding ring.
Background technique
In order to reduce in the running process of automobile the impact from the road surface, improve vehicle running smoothness and passenger comfort, vibration damper is equipped with in suspension system inside at most of automobiles, concussion when suppressing bounce-back after the spring shock-absorbing by vibration damper and from the impact on road surface, when automobile is normally used, can not make human body feel uncomfortable because of vibration and the impact that produces in the running process, tired even impair one's health, for the passenger provides comfortable, the happy environment of taking.And sliding ring is one of parts important in the vehicle shock absorber, and the quality of its sealing effect directly has influence on the effectiveness in vibration suppression of vibration damper.
The cross section of known sliding ring is generally rectangle, Fig. 1 is known dual-tube shock absorber partial cutaway schematic, wherein be provided with known sliding ring, Fig. 2 is the generalized section of known sliding ring, Fig. 3, Fig. 4 are the local enlarged diagrams at I place among Fig. 1, wherein, Fig. 3 has schematically shown the flowing state of fluid in restoring circulation, and Fig. 4 has schematically shown the flowing state of fluid in compression cycle.
As shown in Figure 1, 2, known dual-tube shock absorber has stock solution tube 12, is arranged on the cylinder barrel 15 in the stock solution tube 12, and connecting rod 1 is arranged in the cylinder barrel 15, and extends to the outside of stock solution tube 12.End at stock solution tube 12 and cylinder barrel 15 is provided with guider 13, is provided with lining 14 between the wide diameter portion of described guider 13 and the connecting rod, seals by oil sealing 16 between the end of guider 13 and the stock solution tube 12.Be arranged with sliding ring 11 on the described connecting rod 1, this sliding ring 11 is arranged on the top of lining 14, can seal the main oil flow channel 17 between guider 13 and the connecting rod 1.End face at wide diameter portion also has at least one radial groove 18.
As shown in Figure 3, when vibration damper is in low speed recovery stroke, sliding ring 11 moves upward under the effect of oil pressure A, its end face is closely attached on the upper wall that guider 13 cooperates with sliding ring 11, thereby stop fluid to flow through from the main oil flow channel 17 between guider 13 and the connecting rod 1, only have a minimum fluid to flow through from described radial groove 18 and the secondary oil flow channel that sliding ring 11 end faces consist of, stuck in moving up and down to prevent connecting rod 1.
As shown in Figure 4, when vibration damper is in the low speed compression stroke, frictional force B is greater than oil pressure A, sliding ring 11 moves downward under the effect of frictional force B, thereby the main oil flow channel 17 between connecting rod 1 and the guider 13 is opened, the fluid in the direction of arrow C bottom in figure flows to top, this known structure can cause the compressive force value discontinuous, sluggishness occurs, and the discreteness of vibration damper compressive force value also increases.
In addition, fluid upwards flows and impacts oil sealing 16, also makes the working environment of oil sealing 16 more abominable, has accelerated the wearing and tearing of oil sealing 16, has reduced the working life of oil sealing.
Because the defective that above-mentioned known technology exists, the design people is according to the Production design experience of being engaged in for many years related domain and association area, develop the vibration damper of a kind of flexible deformation's of having sliding ring of the present utility model, flow the discrete of contracting small value force with what reduce fluid between connecting rod and the lining, can effectively stablize and hang down the turn of speed value.
The model utility content
The purpose of this utility model provides a kind of vibration damper that can solve the problem that low speed compression damping power is discontinuous, the power value sluggish, low turn of speed value discreteness is large, especially a kind of vibration damper with pliability distortion sliding ring.
For this reason, the utility model proposes a kind of vibration damper with pliability distortion sliding ring, have stock solution tube, be arranged on the cylinder barrel in the described stock solution tube, a connecting rod is arranged in the described cylinder barrel, and extends to the outside of described stock solution tube; One guider is set on the described connecting rod, and described guider is positioned at described stock solution tube, and is plugged in the end of described cylinder barrel; One end of described guider forms wide diameter portion, and a lining is arranged between guider and the described connecting rod, is positioned at described wide diameter portion, passes through oil sealing sealing between the end of described guider and the described stock solution tube; Be arranged with sliding ring on the described connecting rod, this sliding ring is arranged on the top of lining, and the top of described sliding ring can be resisted against the end face of described guider wide diameter portion, the main oil flow channel between sealing guider and the connecting rod; The end face of described wide diameter portion has at least one radial groove; Wherein, described sliding ring comprises the seal ring body, and from the outward extending flexible seal body of described seal ring body outer periphery, the thickness of described flexible seal body is less than the thickness of described seal ring body, and its periphery is resisted against the inner circle wall face of described guider wide diameter portion.
Aforesaid vibration damper with pliability distortion sliding ring, wherein, the top of described seal ring body can be resisted against the end face of described guider wide diameter portion, forms secondary oil flow channel between the top of described seal ring body and the described radial groove.
Aforesaid vibration damper with pliability distortion sliding ring, wherein, the cross section of described sliding ring is horizontal T shape.
Aforesaid vibration damper with pliability distortion sliding ring wherein, radially is provided with at least one breach on the described flexible seal body.
Characteristics of the present utility model and advantage are:
No matter vibration damper of the present utility model still restores stroke in compression stroke, the sliding ring of the pliability sex change that arranges in it all has good sealability, low speed restores stroke and the low speed compression stroke all can realize sealing, overcome when adopting known rectangle sliding ring and only when restoring stroke, can play seal action, and when compression stroke, main oil flow channel is all opened, there is not the defective of sealing effect fully.Power value when adopting the sliding ring of this pliability distortion greatly to improve vibration damper low speed, thus the travelling comfort of the handling and vehicle of vibration damper greatly improved.Because the working environment of oil sealing is improved, increased simultaneously the working life of oil sealing.
Structure of the present utility model is applicable to active adjustment formula vibration damper, and the semi-active type vibration damper particularly has the vibration damper that large damping force requires during low speed.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is known dual-tube shock absorber partial cutaway schematic;
Fig. 2 is the generalized section that is arranged on known sliding ring among Fig. 1;
Fig. 3 is the local enlarged diagram at I place among Fig. 1, oil stream mode when expression low speed restores stroke;
Fig. 4 is the local enlarged diagram at I place among Fig. 1, oil stream mode during expression low speed compression stroke;
Fig. 5 is the vibration damper generalized section with pliability distortion sliding ring of the present utility model;
Fig. 6 is sliding ring generalized section of the present utility model;
Fig. 7 is sliding ring schematic top plan view of the present utility model;
Fig. 8 is the local enlarged diagram at II place among Fig. 7;
Fig. 9 is the local enlarged diagram at III place among Fig. 5, the state of oil stream and sliding ring when expression low speed restores stroke;
Figure 10 is the local enlarged diagram at III place among Fig. 5, the state of oil stream and sliding ring during expression low speed compression stroke.
The drawing reference numeral explanation:
1, connecting rod 11, sliding ring 12, stock solution tube 13, guider
14, lining 15, cylinder barrel 16, oil sealing 17, main oil flow channel
18, radial groove 2, connecting rod 21, sliding ring 211, seal ring body
212, flexible seal body 213, breach 22, stock solution tube 23, guider
24, lining 25, cylinder barrel 26, oil sealing 27, main oil flow channel
28, radial groove
Embodiment
Understand for technical characteristics of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
To shown in Figure 8, the vibration damper with pliability distortion sliding ring that the utility model proposes has stock solution tube 22 such as Fig. 5, and cylinder barrel 25, one connecting rods 2 that are arranged in the stock solution tube 22 are arranged in the cylinder barrel 25, and extend to the outside of stock solution tube 22; One guider 23 is set on the connecting rod 2, and guider 23 is positioned at stock solution tube 22, and is plugged in the end of cylinder barrel 25.One end of this guider 23 forms wide diameter portion, and a lining 24 is arranged between guider 23 and the described connecting rod 2, is positioned at this wide diameter portion, passes through oil sealing sealing 26 between the end of guider 23 and the stock solution tube 22.Be arranged with sliding ring 21 on the connecting rod 2, this sliding ring 21 is arranged on the top of lining 24, the top of sliding ring 21 can be resisted against the end face of described guider 23 wide diameter portions, main oil flow channel 27 between sealing guider 23 and the connecting rod 2, and the end face of wide diameter portion also has at least one radial groove 28, in a specific embodiment, four radial grooves 28 for example can be set.Described sliding ring 21 comprises seal ring body 211, and the outward extending flexible seal body 212 of pressure sealing ring body 211 outer periphery, the thickness of this flexible seal body 212 is less than the thickness of seal ring body 211, and its periphery is resisted against the inner circle wall face of guider 23 wide diameter portions.
Wherein, the top of seal ring body 211 can be resisted against the end face of guider 23 wide diameter portions, forms secondary oil flow channel between the top of described seal ring body 211 and the described radial groove 18.
Further, radially be provided with at least one breach 213 on the described flexible seal body 212, by the setting of this breach 213, can guarantee that oily stream can successfully pass through from main oil flow channel 27 or secondary oil flow channel 28.
In a specific embodiment, the cross section of described sliding ring 21 is horizontal T shape, as shown in Figure 6.As long as the intensity of flexible seal body 212 is lower than the intensity of sliding ring body 211, can be out of shape after the assembling, and its periphery can be connected to the inner circle wall face of guider 23 wide diameter portions, it is just passable to play effective seal action.
The below illustrates working principle of the present utility model to the transversal sliding ring that is horizontal T shape: as shown in Figure 9, when low speed restores stroke, promoting sliding ring 21 under the effect of oil pressure A moves upward, the end face of sliding ring body 211 is resisted against the end face of guider 23 wide diameter portions, stop fluid to flow through from main oil flow channel 27 between guider 23 and the connecting rod 2, only have the minimum fluid the oil stream that in the breach 213 that the flexible seal body 212 of sliding ring 21 arranges, flows through to flow through through described radial groove 28 and the secondary oil flow channel that sliding ring 21 end faces consist of, to prevent that connecting rod 2 is upper, stuck in the lower movement.In this process, the outer circumferential face of the wide diameter portion internal face extruding flexible seal body 212 of guider 23 has played seal action, and sliding ring 21 end faces, outer circumferential face are sealed simultaneously, compare with known technology, further improved the sealability of vibration damper in low speed recovery stroke.Wherein, be provided with radial groove 28 at the wide diameter portion end face of guider 23 and be known technology, do not repeat them here.
As shown in figure 10, when vibration damper is in the low speed compression stroke, under the effect of frictional force B, sliding ring 21 moves downward, guider is left at the top of sliding ring body 211, the outer circumferential face of the wide diameter portion internal face extruding flexible seal body 212 of guider 23, played seal action, make the outer circumferential face of sliding ring 21 seal a large amount of fluid, make under the state that the main oil flow channel 27 between connecting rod 2 and the guider 23 opens, the fluid that only has the breach 213 that is disposed radially from flexible seal body 212 to flow through can pass through described main oil flow channel 27, thereby controlled fluid flowing between connecting rod and guider 23, effectively reduced the low speed compressive force and be worth unsettled phenomenon, it is sluggish to have reduced damping force power value, has stablized the power value of low speed compression stroke.In addition, because the seal action of flexible seal body 212, do not have a large amount of fluid impact flow oil sealing 26 that makes progress, thereby greatly improved the working environment of oil sealing 26, the working life of having improved oil sealing 2.
No matter vibration damper of the present utility model still restores stroke in compression stroke, the sliding ring 21 of the pliability sex change that arranges in it all has good sealability, low speed restores stroke and the low speed compression stroke all can realize sealing, thereby effectively controlled flowing of fluid between connecting rod 2 and the guider 23, improved and stablized low speed compressive force value.Owing to adopt the sliding ring 21 that is provided with the pliability distortion in the vibration damper of the present utility model, therefore farthest stablized the low turn of speed value of vibration damper, thereby improved the travelling comfort of the handling and vehicle of vibration damper.
The above only is the schematic embodiment of the utility model, is not to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (4)
1. the vibration damper with pliability distortion sliding ring has stock solution tube, is arranged on the cylinder barrel in the described stock solution tube, and a connecting rod is arranged in the described cylinder barrel, and extends to the outside of described stock solution tube; One guider is set on the described connecting rod, and described guider is positioned at described stock solution tube, and is plugged in the end of described cylinder barrel; One end of described guider forms wide diameter portion, and a lining is arranged between guider and the described connecting rod, is positioned at described wide diameter portion, passes through oil sealing sealing between the end of described guider and the described stock solution tube; Be arranged with sliding ring on the described connecting rod, this sliding ring is arranged on the top of lining, and the top of described sliding ring can be resisted against the end face of described guider wide diameter portion, the main oil flow channel between sealing guider and the connecting rod; The end face of described wide diameter portion has at least one radial groove; It is characterized in that, described sliding ring comprises the seal ring body, and from the outward extending flexible seal body of described seal ring body outer periphery, the thickness of described flexible seal body is less than the thickness of described seal ring body, and its periphery is resisted against the inner circle wall face of described guider wide diameter portion.
2. the vibration damper with pliability distortion sliding ring as claimed in claim 1, it is characterized in that, the top of described seal ring body can be resisted against the end face of described guider wide diameter portion, forms secondary oil flow channel between the top of described seal ring body and the described radial groove.
3. the vibration damper with pliability distortion sliding ring as claimed in claim 1 or 2 is characterized in that the cross section of described sliding ring is horizontal T shape.
4. the vibration damper with pliability distortion sliding ring as claimed in claim 3 is characterized in that, radially is provided with at least one breach on the described flexible seal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220484171.2U CN202851803U (en) | 2012-09-20 | 2012-09-20 | Shock absorber with flexible deformed sliding seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220484171.2U CN202851803U (en) | 2012-09-20 | 2012-09-20 | Shock absorber with flexible deformed sliding seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851803U true CN202851803U (en) | 2013-04-03 |
Family
ID=47983009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220484171.2U Expired - Lifetime CN202851803U (en) | 2012-09-20 | 2012-09-20 | Shock absorber with flexible deformed sliding seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109690122A (en) * | 2016-09-08 | 2019-04-26 | Zf腓特烈斯哈芬股份公司 | The vibration damping valve module of frequency selection |
-
2012
- 2012-09-20 CN CN201220484171.2U patent/CN202851803U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109690122A (en) * | 2016-09-08 | 2019-04-26 | Zf腓特烈斯哈芬股份公司 | The vibration damping valve module of frequency selection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |