CN2365455Y - Spring vibration-damper using both gas and oil for vehicle - Google Patents
Spring vibration-damper using both gas and oil for vehicle Download PDFInfo
- Publication number
- CN2365455Y CN2365455Y CN 98227747 CN98227747U CN2365455Y CN 2365455 Y CN2365455 Y CN 2365455Y CN 98227747 CN98227747 CN 98227747 CN 98227747 U CN98227747 U CN 98227747U CN 2365455 Y CN2365455 Y CN 2365455Y
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- oil
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- accumulator
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Abstract
The utility model discloses a spring vibration-damper using both gas and oil for vehicles, which can be used for motor vehicles. The utility model is composed of a piston oil cylinder, a one-way valve and an accumulator, wherein, the piston oil cylinder is composed of a cylinder body and a piston. An oil chamber is formed by that the oil cylinder is divided by the piston and is communicated with the accumulator by the one-way valve. The other oil chamber is communicated with the accumulator by an adjustable retrictor valve. The piston is provided with through holes. The oil cylinder is provided with a spring. On the basis of keeping simple and reliable structure and low cost, the utility model can play effective damping vibration attenuation role for the vibration of different high and low frequencies.
Description
The utility model relates to a kind of vibration damping equipment of motor vehicle, especially a kind of vibration damper with oil-gas spring for vehicles.
Vehicle hydro-pneumatic spring suspension is to be Elastic medium with gas, is intermediate medium with fluid, plays transfer function power and attenuation vibration.The characteristics of hydro-pneumatic spring are: have comparatively ideal elastic characteristic, its rigidity changes, and load is big more, and rigidity is big more, and the unsprung parts axletree is to the direct impact of suspended portion when having avoided heavily loaded; Simple in structure, in light weight.Hydro pneumatic suspension is made up of clutch release slave cylinder and guide mechanism, and clutch release slave cylinder is the assemblying body of gas spring and dydraulic shock absorber, and the upper ball base of clutch release slave cylinder is connected with vehicle frame, and lower ball base is connected with the car sedan-chair, pours the nitrogen of certain pressure in the air-storage chamber in advance.When vehicle driving was vibrated, piston just moved in cylinder, and the barrier film of the mobile extruding air-storage chamber by fluid changes gas volume, utilizes the elasticity of pressurized gas and the damping of liquid to play a part spring and vibration damper.But existing hydro-pneumatic spring suspension can not be deacclimatized variation such as load, tire stiffness, the speed of a motor vehicle and the pavement conditions of systematic parameter on one's own initiative, makes it have better rideability.Because when the recovery extended travel of each vibrational period, it can not apply active controlling force and suppress vibration, therefore in low-frequency range, effectiveness in vibration suppression is not good.
Goal of the invention of the present utility model is to provide a kind of cost the low vibration damper with oil-gas spring for vehicles that also can improve effectiveness in vibration suppression.
The utility model adopts following technological scheme to realize its goal of the invention:
The utility model is the vibration damper with oil-gas spring for vehicles that a kind of Motor Vehicle uses, form by piston oil-cylinder, one-way valve 4 and accumulator 5, piston oil-cylinder is made up of cylinder body 1 and piston 2, the oil pocket B that is formed by 2 fens grease traps 1 of piston communicates with accumulator 5 by one-way valve 4, oil pocket A communicates with accumulator 5 by adjustable restrictive valve 6, on piston 2, be provided with through hole 3, on oil cylinder 1, be provided with spring 8.
Compared with prior art, the utlity model has following advantage:
When outer scramble rate was lower than 6～7Hz, the compression stroke cylinder barrel moved upward or piston moves downward the stage, and then oil pocket B compression, oil pocket A expand, because piston rod occupies oil pocket A partial volume, so the volume that the volume of oil pocket B compression expands greater than oil pocket A.Like this, the fluid part of oil pocket B compression flows into the space of its expansion of oil pocket A filling by through hole 3, another part fluid enters the reservoir compartment of diaphragm accumulator 5 by one-way valve 4, and further extruding has been filled with the air-storage chamber of certain pressure nitrogen, absorbs effectively and has stored and impacted or energy that vibration produces; Move downward or piston moves upward the stage at the extended travel cylinder barrel, then oil pocket A compression, oil pocket B expands, because the non-return effect of one-way valve 4, accumulator can not be to oil pocket B oil-feed, and the fluid via through holes 3 of oil pocket A compression flows into oil pocket B, still be not enough to be full of the volume that oil pocket B expands, cause oil pocket A and B pressure to descend, accumulator will be released in a part of fluid that the compression stroke stage is stored in the reservoir compartment this moment, flow into behind the oil pocket A again by adjustable restrictive valve that via through holes 3 enters oil pocket B, produce certain control force for this reason the displacement movement of elongation is suppressed.Change the input current of proportional electromagnetic valve, can change throttle valve opening, then the control force that can regulate applied is not little.When outer scramble rate is higher than 7Hz, valve will no longer respond, and then utilize hydro-pneumatic spring effect and damping function to carry out vibration damping.Adopt the structure of hydro-pneumatic spring and metal spring 8 combinations, can obtain the equifrequency characteristic under the different loads.So the utility model is to adopt different technological means to go to overcome the vibration of different frequency, has improved the integration capability of the utility model vibration damping.In addition, the utility model has just increased adjustable restrictive valve and accumulator on the basis of air oil shock absorber can overcome high and low frequency vibration, so the utility model also has advantage simple and reliable for structure, cheap.
Fig. 1 is the utility model example structure schematic representation.
Fig. 2 is the utility model example structure C-C sectional view.
With reference to the accompanying drawings, embodiment of the present utility model being done one describes in detail:
The utility model is the vibration damper with oil-gas spring for vehicles that a kind of Motor Vehicle uses, by piston oil-cylinder, one-way valve 4 and accumulator 5 are formed, piston oil-cylinder is made up of cylinder body 1 and piston 2, the oil pocket B that is formed by 2 fens grease traps 1 of piston communicates with accumulator 5 by one-way valve 4, oil pocket A communicates with accumulator 5 by adjustable restrictive valve 6, on piston 2, be provided with through hole 3, on oil cylinder 1, be provided with spring 8, accumulator 5 is a diaphragm accumulator, above-mentioned adjustable restrictive valve can adopt the power adjustable restrictive valve, above-mentioned adjustable restrictive valve 6 is except can be by the proportional solenoid valve control, also can be by electro-hydraulic control valve, stepper motors etc. are controlled it, promptly pass through the valve rod of electro-hydraulic control valve or stepper motor push-and-pull adjustable restrictive valve.
Claims (3)
1. the vibration damper with oil-gas spring for vehicles that uses of a Motor Vehicle, form by piston oil-cylinder, one-way valve (4) and accumulator (5), it is characterized in that piston oil-cylinder is made up of cylinder body (1) and piston (2), the oil pocket (B) that divides grease trap (1) to form by piston (2) communicates with accumulator (5) by one-way valve (4), oil pocket (A) communicates with accumulator (5) by adjustable restrictive valve (6), on piston (2), be provided with through hole (3), on oil cylinder (1), be provided with spring (8).
2. vibration damper with oil-gas spring for vehicles according to claim 1 is characterized in that accumulator (5) is a diaphragm accumulator.
3. vibration damper with oil-gas spring for vehicles according to claim 1 is characterized in that adjustable restrictive valve (6) is the power adjustable restrictive valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227747 CN2365455Y (en) | 1998-09-03 | 1998-09-03 | Spring vibration-damper using both gas and oil for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227747 CN2365455Y (en) | 1998-09-03 | 1998-09-03 | Spring vibration-damper using both gas and oil for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2365455Y true CN2365455Y (en) | 2000-02-23 |
Family
ID=33978011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227747 Expired - Fee Related CN2365455Y (en) | 1998-09-03 | 1998-09-03 | Spring vibration-damper using both gas and oil for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2365455Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121508A (en) * | 2010-12-31 | 2011-07-13 | 中国三江航天工业集团公司特种车辆技术中心 | Double-chamber hydragass spring |
| CN104226874A (en) * | 2013-06-11 | 2014-12-24 | 镇江市申茂机械有限公司 | Forging machine damping device |
| CN105422707A (en) * | 2015-12-28 | 2016-03-23 | 大连理工大学 | Electromagnetic vibration damper |
| CN109476200A (en) * | 2016-03-15 | 2019-03-15 | 夸德罗车辆公司 | Improved suspension |
| CN113124085A (en) * | 2020-01-14 | 2021-07-16 | 深圳市固胜智能科技有限公司 | Hydraulic system of active shock absorber |
-
1998
- 1998-09-03 CN CN 98227747 patent/CN2365455Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121508A (en) * | 2010-12-31 | 2011-07-13 | 中国三江航天工业集团公司特种车辆技术中心 | Double-chamber hydragass spring |
| CN102121508B (en) * | 2010-12-31 | 2012-12-19 | 中国三江航天工业集团公司特种车辆技术中心 | Double-chamber hydragass spring |
| CN104226874A (en) * | 2013-06-11 | 2014-12-24 | 镇江市申茂机械有限公司 | Forging machine damping device |
| CN105422707A (en) * | 2015-12-28 | 2016-03-23 | 大连理工大学 | Electromagnetic vibration damper |
| CN105422707B (en) * | 2015-12-28 | 2018-01-09 | 大连理工大学 | A kind of electromagnetic shock absorber |
| CN109476200A (en) * | 2016-03-15 | 2019-03-15 | 夸德罗车辆公司 | Improved suspension |
| CN113124085A (en) * | 2020-01-14 | 2021-07-16 | 深圳市固胜智能科技有限公司 | Hydraulic system of active shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |