CN204083040U - For the miniature noise elimination accumulator of vibration damper - Google Patents
For the miniature noise elimination accumulator of vibration damper Download PDFInfo
- Publication number
- CN204083040U CN204083040U CN201420442920.4U CN201420442920U CN204083040U CN 204083040 U CN204083040 U CN 204083040U CN 201420442920 U CN201420442920 U CN 201420442920U CN 204083040 U CN204083040 U CN 204083040U
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- CN
- China
- Prior art keywords
- vibration damper
- clutch release
- floating piston
- release slave
- filling valve
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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.)
- Withdrawn - After Issue
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of miniature noise elimination accumulator for vibration damper, floating piston is embedded in clutch release slave cylinder, by damping oil and inert gas isolated, form independently oil cylinder and cylinder; Rapid pipe joint is connected on cylinder barrel on end cover, is connected with vibration damper rodless cavity, and liquid-filling valve is fixedly mounted in clutch release slave cylinder and forms a hydraulic accumulator with floating piston, supplements and absorb the fluid of vibration damper rodless cavity timely; Self sealing gas-charging connection is connected in cylinder barrel lower seal end cap, is filled with inert gas to air chamber.The utility model overcomes damping oil flowing and fills up delayed defect, avoids in vibration damper clutch release slave cylinder and produces bubble, reduce noise; Define hydraulic accumulator, relaxed impact, improve vibration damper global stability, reliability, extend vibration damper working life.
Description
Technical field
The utility model relates to a kind of accumulator for vibration damper, in particular for the miniature noise elimination accumulator of vibration damper, is applicable to automobile absorber system, belongs to fluid control technology field.
Background technique
At present, the vibration damper that automobile uses all belongs to hydraulic damper substantially; Vehicle is when rough ride, the piston rod of hydraulic damper constantly makes fore and aft motion in cylinder body, and the damping oil in cylinder body constantly by current downflow on the valve block in valve body, cushions the impact force because light weight brings, to extenuate degree of jolting, improve the travelling comfort of vehicle ride.Oil cylinder volume can be made when piston rod due to hydraulic damper stretches into and stretches out cylinder body to change, when vehicle jolts frequently and top width is larger, the circulation of cylinder body internal damping oil fills up delayed, very easily occurs vacuum in cylinder body, there is idle running phenomenon in piston, have a strong impact on damping effect in cylinder body.
In recent years, also there is the new technology being filled with pressurized gas for hydraulic damper cylinder body lower curtate.Through retrieval direction, the Chinese patent patent No. is 200620141855.7, disclose the patented technology of " barrel type hydraulic shock absorber of band floating piston " by name, by the bottom at cylindrical shell, float piston device is installed, substantially solve the problems referred to above, but still there is shortcoming in this technology: as more difficult in being filled with pressurized gas; Floating piston moving range is large, serious wear; Without accumulator, floating piston affects by Strong Impact Loading, and working life is low.
Model utility content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of miniature noise elimination accumulator for vibration damper, has that damping performance is good, reliability is strong, noise is low, installation and maintenance feature very easily.
In order to solve above technical problem, the utility model provides a kind of miniature noise elimination accumulator for vibration damper, comprise clutch release slave cylinder and the upper-lower seal end cap of fixing seal at described clutch release slave cylinder two ends, end cover is provided with the rapid pipe joint communicated with vibration damper rodless cavity on described, described lower seal end cap is provided with self sealing gas-charging connection, self sealing gas-charging connection is inflated cylinder, after inert gas is full of, the pressurize voluntarily of self-sealed pneumatic head, sealing, prevent the leakage of high-pressure inert gas; The floating piston be entrenched in by seal ring on clutch release slave cylinder inwall is provided with in the cavity of described clutch release slave cylinder, clutch release slave cylinder between described upper end end-blocking lid and described floating piston is installed with liquid-filling valve, and the operative end surface of described liquid-filling valve and floating piston is all perpendicular to the central axis of described clutch release slave cylinder; Be filled with damping oil between described floating piston and upper end cover, between described floating piston and lower sealing cover, be filled with inert gas or nitrogen; Described liquid-filling valve is arranged in the damping oil between described floating piston and upper end cover, and described liquid-filling valve center is provided with oil through, and the upper and lower two end faces of described floating piston is respectively equipped with groove, and one end is that discoid groove contacts with high-pressure inert gas; The other end is that the discoid groove of stepped shaft contacts with damping oil, and the groove at two ends makes to form energy-absorbing thin-walled in the middle part of floating piston.
The technological scheme that the utility model limits further is: the aforesaid miniature noise elimination accumulator for vibration damper, the end face that described floating piston contacts with damping oil is provided with in circular boss, described boss has two sulculuses, two sulculuses on the same line, under thump, the bubble that damping oil produces flows in cylinder through sulculus; Floating piston contacts side and at least has annular groove together with clutch release slave cylinder, the seal ring being full of groove is installed in described groove, internal diameter of the seal ring is slightly less than floating piston side annular groove external diameter, seal ring external diameter is slightly larger than the inner diameter of clutch release slave cylinder, and what realize gas and liquid to greatest extent is separated sealing.
The aforesaid miniature noise elimination accumulator for vibration damper, described clutch release slave cylinder and lower seal end cap are welded to connect, and described lower seal end cap end face has the tapped hole installing self sealing gas-charging connection, and described tapped hole central axis and clutch release slave cylinder central axis coincide.
Further, the aforesaid miniature noise elimination accumulator for vibration damper, the center close to side of described liquid-filling valve and described upper end cover is provided with cylinder shape groove, described cylinder shape groove surrounding is annular boss, described oil through is made up of the through hole that four are arranged on place of described cylinder shape groove bottom centre, the top of described four through holes is provided with shell fragment on liquid-filling valve, the base portion of described four through holes is provided with reed group under liquid-filling valve, on described liquid-filling valve, under shell fragment and liquid-filling valve, reed group is all fixed on the main valve body of liquid-filling valve by rivet, seal ring is provided with between described liquid-filling valve and clutch release slave cylinder surface of contact.
The beneficial effects of the utility model are:
1, high-pressure inert gas is separated with damping fluid by the utility model floating piston, all pressured state is under ensure that damping fluid what operating mode in office, thus ensure that vibration damper under any state all without idle running phenomenon, avoid the vacuum phenomenon in shock absorber cylinder, prevent the emulsification of oil product, thus reduce the generation of bubble noise.
2, the utility model floating piston arrangement is simple, novel in design, is convenient to processing, and relax impulsive load because thin-walled in the middle part of floating piston can produce distortion absorption, the stability of whole vibration damper is improved, and reliability strengthens.
3, the utility model floating piston contacts end face with damping oil and is provided with boss, in circular, boss has two sulculuses, on the same line, under thump, the gas that damping oil produces flows in cylinder through sulculus two sulculuses, effectively absorb the bubble that fluid produces, ensure that the quality of damping oil, further reduce noise, improve working life.
4, the utility model rapid pipe joint to be connected on cylinder barrel in end cover, contact with vibration damper rodless cavity, liquid-filling valve is fixedly mounted in clutch release slave cylinder and forms a hydraulic accumulator with floating piston, arrange like this can absorb in time, supplement vibration damper rodless cavity fluid, improve the system stationarity of vibration damper, contribute to the cooling of fluid simultaneously, thus improve overall performance and the working life of vibration damper.
5, the utility model liquid-filling valve is fixedly mounted in clutch release slave cylinder and forms a hydraulic accumulator with floating piston, avoid floating piston directly to contact with vibration damper rodless cavity, relax the impact of fluid to floating piston, reduce the stroke of floating piston, thus decrease the wearing and tearing of floating piston, extend working life.
6, the utility model lower sealing cover is provided with self sealing gas-charging connection, facilitates and inflates cylinder, and after inert gas is full of, the pressurize voluntarily of self-sealed pneumatic head, sealing, prevent the leakage of high-pressure inert gas.The setting of pneumatic head has been convenient to regulate the air pressure in vibration damper cylinder, makes the performance of vibration damper reach optimum.
The miniature noise elimination accumulator for vibration damper described by the utility model, have simply rational in infrastructure, novel in design, easy to adjust, noise is low, the feature that reliability is strong, greatly improves damping overall performance and the working life of vibration damper, is a kind of desirable miniature noise elimination accumulator for vibration damper.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model floating piston.
Fig. 3 is the structural representation of the utility model liquid-filling valve.
Wherein: 1, clutch release slave cylinder; 2, liquid-filling valve; 3, damping oil; 4, floating piston; 5, seal ring; 6, nitrogen; 7, lower seal end cap; 8, self sealing gas-charging connection; 9, upper end cover; 10, rapid pipe joint.
Embodiment
Embodiment 1
A kind of miniature noise elimination accumulator for vibration damper that the present embodiment provides, structure as shown in Figure 1 to Figure 3, comprise clutch release slave cylinder 1 and the upper-lower seal end cap of fixing seal at clutch release slave cylinder two ends, upper end cover 9 is provided with the rapid pipe joint 10 communicated with vibration damper rodless cavity, lower seal end cap 7 is provided with self sealing gas-charging connection 8, the floating piston 4 be entrenched in by seal ring on clutch release slave cylinder inwall is provided with in the cavity of clutch release slave cylinder, clutch release slave cylinder between upper end cover 9 and floating piston 4 is installed with liquid-filling valve 2, the operative end surface of liquid-filling valve 2 and floating piston 4 is all perpendicular to the central axis of clutch release slave cylinder, be filled with damping oil 3 between floating piston and upper end cover, between floating piston and lower sealing cover, be filled with nitrogen 6, liquid-filling valve 2 is arranged in the damping oil 3 between floating piston and upper end cover, and liquid-filling valve center is provided with oil through, and floating piston about 4 two end faces is respectively equipped with groove, and one end is that discoid groove 4-1 contacts with high-pressure inert gas 6, the other end is that the discoid groove 4-2 of stepped shaft contacts with damping oil 3, and the groove at two ends makes to form energy-absorbing thin-walled in the middle part of floating piston.
The end face that the floating piston 4 of the present embodiment contacts with damping oil 3 is provided with in circular boss, and boss has two sulculus 4-3, two sulculuses on the same line; Floating piston 4 contacts side and has annular groove 4-4 together with clutch release slave cylinder, be provided with the seal ring 5 being full of groove in groove; Clutch release slave cylinder 1 and lower seal end cap 7 are welded to connect, and lower seal end cap 7 end face has the tapped hole installing self sealing gas-charging connection, and tapped hole central axis and clutch release slave cylinder 1 central axis coincide.
The center close to side of liquid-filling valve and upper end cover is provided with cylinder shape groove 2-1, cylinder shape groove surrounding is annular boss 2-2, oil through is made up of the through hole 2-3 that four are arranged on place of cylinder shape groove bottom centre, the top of four through holes is provided with shell fragment 2-4 on liquid-filling valve, the base portion of four through holes is provided with reed group 2-5 under liquid-filling valve, on liquid-filling valve, under shell fragment and liquid-filling valve, reed group is all fixed on the main valve body of liquid-filling valve by rivet 2-6, is provided with seal ring 11 between liquid-filling valve and clutch release slave cylinder surface of contact.
Floating piston 4 is embedded in clutch release slave cylinder 1, by damping oil 3 and inert gas 6 isolated, form independently oil cylinder and cylinder; Liquid-filling valve 2 is fixedly mounted in clutch release slave cylinder 1 and forms a hydraulic accumulator with floating piston 4; On cylinder barrel, end cover 9 and clutch release slave cylinder 1 are by linking together along seam welding, and end cover has tapped hole to cylinder barrel, and rapid pipe joint 10 is threaded connection on upper end cover 9, contacts with vibration damper rodless cavity, supplement or release fluid to hydraulic accumulator; Cylinder barrel lower seal end cap 7 and clutch release slave cylinder 1 are by linking together along seam welding, and cylinder barrel end cover has tapped hole, and self sealing gas-charging connection 8 is threaded connection in lower seal end cap 7, is filled with inert nitrogen gas to air chamber.
Liquid-filling valve main valve body lower end has four apertures, and be convenient to fluid circulation, upper and lower reed group is similar to the spool of valve, elastic strain can occur under oil pressure pressure.When accumulator supplements fluid to vibration damper rodless cavity, upper reed plate opens large opening under oil liquid pressure, carries out fluid rapidly supplement rodless cavity; When accumulator accumulation of energy, when absorbing rodless cavity hydraulic energy, reed cuts out under oil liquid pressure, makes opening very little, thus slowly to accumulator accumulation of energy; Lower reed group and upper reed plate are arranged on rivet, are finally assemblied on liquid-filling valve main valve body.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (6)
1. for the miniature noise elimination accumulator of vibration damper, comprise clutch release slave cylinder and the upper-lower seal end cap of fixing seal at described clutch release slave cylinder two ends, end cover is provided with the rapid pipe joint communicated with vibration damper rodless cavity on described, on described lower seal end cap, (7) are provided with self sealing gas-charging connection, it is characterized in that: in the cavity of described clutch release slave cylinder, be provided with the floating piston be entrenched in by seal ring on clutch release slave cylinder inwall, clutch release slave cylinder between described upper end end-blocking lid (9) and described floating piston is installed with liquid-filling valve (2), the operative end surface of described liquid-filling valve and floating piston is all perpendicular to the central axis of described clutch release slave cylinder, be filled with damping oil between described floating piston and upper end cover, between described floating piston and lower sealing cover, be filled with inert gas or nitrogen, described liquid-filling valve is arranged in the damping oil between described floating piston and upper end cover, described liquid-filling valve center is provided with oil through, described floating piston (4) up and down two end faces is respectively equipped with groove, and one end is that discoid groove contacts with high-pressure inert gas (6), the other end is that the discoid groove of stepped shaft contacts with damping oil (3), and the groove at two ends makes to form energy-absorbing thin-walled in the middle part of floating piston.
2. the miniature noise elimination accumulator for vibration damper according to claim 1, is characterized in that: the end face that described floating piston (4) contacts with damping oil (3) is provided with in circular boss, and described boss has two sulculuses, two sulculuses on the same line.
3. the miniature noise elimination accumulator for vibration damper according to claim 1, is characterized in that: described floating piston (4) contacts side and at least has annular groove together with clutch release slave cylinder, is provided with the seal ring (5) being full of groove in described groove.
4. the miniature noise elimination accumulator for vibration damper according to claim 1, it is characterized in that: described clutch release slave cylinder and lower seal end cap (7) are welded to connect, described lower seal end cap (7) end face has the tapped hole installing self sealing gas-charging connection, and described tapped hole central axis and clutch release slave cylinder central axis coincide.
5. the miniature noise elimination accumulator for vibration damper according to claim 1, it is characterized in that: the center close to side of described liquid-filling valve and described upper end cover is provided with cylinder shape groove, described cylinder shape groove surrounding is annular boss, described oil through is made up of the through hole that four are arranged on place of described cylinder shape groove bottom centre, the top of described four through holes is provided with shell fragment on liquid-filling valve, the base portion of described four through holes is provided with reed group under liquid-filling valve, on described liquid-filling valve, under shell fragment and liquid-filling valve, reed group is all fixed on by rivet on the main valve body of described liquid-filling valve.
6. the miniature noise elimination accumulator for vibration damper according to claim 5, is characterized in that: be provided with seal ring between described liquid-filling valve and clutch release slave cylinder surface of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442920.4U CN204083040U (en) | 2014-08-06 | 2014-08-06 | For the miniature noise elimination accumulator of vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442920.4U CN204083040U (en) | 2014-08-06 | 2014-08-06 | For the miniature noise elimination accumulator of vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083040U true CN204083040U (en) | 2015-01-07 |
Family
ID=52175763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442920.4U Withdrawn - After Issue CN204083040U (en) | 2014-08-06 | 2014-08-06 | For the miniature noise elimination accumulator of vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083040U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154168A (en) * | 2014-08-06 | 2014-11-19 | 江苏华彤新能源科技有限公司 | Micro soundproof energy accumulator used for damper |
| CN106678244A (en) * | 2017-03-24 | 2017-05-17 | 中国北方车辆研究所 | Hanging damping valve |
| CN110273866A (en) * | 2019-07-12 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Wind piston accumulator |
| CN110552984A (en) * | 2019-09-23 | 2019-12-10 | 浙江戈尔德减振器股份有限公司 | Anti-pollution single cylinder bumper shock absorber subassembly of no jamming |
| US11118649B2 (en) | 2019-07-01 | 2021-09-14 | Tenneco Automotive Operating Company Inc. | Damper with side collector and external control valves |
| US11143260B2 (en) | 2018-12-28 | 2021-10-12 | Tenneco Automotive Operating Company Inc. | Damper with single external control valve |
| US11156261B2 (en) | 2018-12-28 | 2021-10-26 | Tenneco Automotive Operating Company Inc. | Damper with multiple external control valves |
| US11248677B2 (en) | 2019-07-18 | 2022-02-15 | Tenneco Automotive Operating Company Inc. | Pre-assembled piston accumulator insert device |
| CN114502846A (en) * | 2019-08-30 | 2022-05-13 | 希尔零配件市场产品有限责任公司 | Accumulator piston for vehicle transmission system |
| US11635122B2 (en) | 2019-07-18 | 2023-04-25 | Tenneco Automotive Operating Company Inc. | Intake device for a damper having a side collector |
-
2014
- 2014-08-06 CN CN201420442920.4U patent/CN204083040U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154168A (en) * | 2014-08-06 | 2014-11-19 | 江苏华彤新能源科技有限公司 | Micro soundproof energy accumulator used for damper |
| CN106678244A (en) * | 2017-03-24 | 2017-05-17 | 中国北方车辆研究所 | Hanging damping valve |
| US11143260B2 (en) | 2018-12-28 | 2021-10-12 | Tenneco Automotive Operating Company Inc. | Damper with single external control valve |
| US11156261B2 (en) | 2018-12-28 | 2021-10-26 | Tenneco Automotive Operating Company Inc. | Damper with multiple external control valves |
| US11118649B2 (en) | 2019-07-01 | 2021-09-14 | Tenneco Automotive Operating Company Inc. | Damper with side collector and external control valves |
| CN110273866A (en) * | 2019-07-12 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Wind piston accumulator |
| US11248677B2 (en) | 2019-07-18 | 2022-02-15 | Tenneco Automotive Operating Company Inc. | Pre-assembled piston accumulator insert device |
| US11635122B2 (en) | 2019-07-18 | 2023-04-25 | Tenneco Automotive Operating Company Inc. | Intake device for a damper having a side collector |
| CN114502846A (en) * | 2019-08-30 | 2022-05-13 | 希尔零配件市场产品有限责任公司 | Accumulator piston for vehicle transmission system |
| CN110552984A (en) * | 2019-09-23 | 2019-12-10 | 浙江戈尔德减振器股份有限公司 | Anti-pollution single cylinder bumper shock absorber subassembly of no jamming |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20170329 |