CN201317237Y - Adjustable oil-gas suspension with controllable throttle area and three-level damping - Google Patents
Adjustable oil-gas suspension with controllable throttle area and three-level damping Download PDFInfo
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- CN201317237Y CN201317237Y CNU2008201237635U CN200820123763U CN201317237Y CN 201317237 Y CN201317237 Y CN 201317237Y CN U2008201237635 U CNU2008201237635 U CN U2008201237635U CN 200820123763 U CN200820123763 U CN 200820123763U CN 201317237 Y CN201317237 Y CN 201317237Y
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- valve
- oil
- dash pot
- throttling
- valve core
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Abstract
The utility model relates to oil-gas suspension systems of transportation means, in particular to an adjustable oil-gas suspension with controllable throttle area and three-level damping, which belongs to the field of engineering elements or parts. The suspension comprises a piston, a cylinder, an oil pipe, a damping valve and an accumulator, wherein, the damping valve comprises three throttle valve cores, two electromagnetic valves, one compression unloading valve and one expansion unloading valve, and five oil ways arranged in parallel are mounted inside the damping valve; the three throttle valves are mounted in three of the five oil ways respectively; throttle holes are formed on the throttle valve cores which can be replaced; the two electromagnetic valves and two of the three throttle valve cores are arranged in series in the oil ways; and the compression unloading valve and the expansion unloading valve are mounted in the other two oil ways. The suspension provided by the utility model has the advantages of simple structure, easy realization, simple control, convenient maintenance and the like, and can realize more superior performance, and improve the adaptability of vehicles to different roads and the running performance of vehicles.
Description
Technical field
The utility model relates to the hydro-pneumatic suspension system of transportation means, and the adjustable hydro pneumatic suspension of particularly a kind of orifice size controllable type three-stage damping belongs to engineering element or field of components.
Background technology
Hydro pneumatic suspension has good application prospects as a kind of automobile suspension system of function admirable aspect special vehicle and the overland vehicle.In the vehicle ' process, hydro pneumatic suspension relaxes ground-surface impact by the combined action of energy storage and oil damper, and the decay vibration of vehicle to improve vehicle running smoothness, improves vehicle operational safety, and the enhancing automobile is taken advantage of and driven traveling comfort.But owing to hydro pneumatic suspension still class belongs to passive suspension, the orifice size that fluid is flowed through on its internally-damped valve is fixed, and the unloader valve cracking pressure is also fixed, and can't realize adjustable dumping force once setting.When travelling, will lose due effectiveness in vibration suppression under automobile is exceeding the road conditions of dash pot valve applicable area, cause defective shock absorber, this dash pot valve is little to the applicable area of road conditions, the poor reliability of vibration damping, and also the life-span of using is low.Therefore, the shock absorber that Adjustable Damping in some high-end vehicles, occurred, make dumping force in a big way, to regulate, but because this type of shock absorber becomes the damping actuating unit in shock absorber inside, though structure is compact, inconvenient maintenance, simultaneously, since adopt built-in structure, all higher to requirements such as the quality of fit of parts and the control accuracys of actuating unit, thus cause processing difficulties.
Summary of the invention
The purpose of this utility model is in order to improve vehicle running smoothness, improve safety in operation, to strengthen to take advantage of and drive traveling comfort, and provides a kind of orifice size controllable type three-stage damping adjustable hydro pneumatic suspension.
The purpose of this utility model is achieved through the following technical solutions.
The adjustable hydro pneumatic suspension of a kind of orifice size controllable type three-stage damping of the present utility model, comprise piston, cylinder barrel, oil pipe, dash pot valve and energy storage, wherein piston is divided into two not connected chambeies with cylinder barrel, the cylinder barrel epicoele is provided with oil outlet, link to each other with external dash pot valve, energy storage by oil pipe, cavity of resorption communicates with atmosphere.Fluid in the cylinder barrel flows into energy storage by oil pipe through external dash pot valve.When fluid is flowed through external dash pot valve, realize the adjusting of dumping force by total orifice size of regulating fluid in the dash pot valve.
Dash pot valve comprises 3 throttling valve core, 2 electromagnetic valves, 1 compression unloader valve and 1 extension unloader valve, the oil circuit that its inside is processed with 5 install in parallels is used for the circulation of fluid, and wherein 3 throttling valve core are installed in respectively in 5 oil circuits 3, have throttling pore on the throttling valve core, be used to produce dumping force, throttling valve core is replaceable; 2 electromagnetic valves respectively with 3 throttling valve core in 2 be disposed in series in the oil circuit, be used to control the switching of this oil circuit; 1 compression unloader valve and 1 extension unloader valve are installed in respectively in 2 other in 5 oil circuits, in compression and extension stroke, play unidirectional conducting and off-load effect respectively.When electromagnetic valve switching when electricity, be in the oil circuit at the series connected throttling pore of electromagnetic valve place and open or closed condition, the total orifice size of fluid changes, and dumping force also just changes.
Energy storage divides two chambeies, and a chamber is filled with the unreactable gas of certain pressure in advance, plays the effect of elastic element; Another chamber is full of fluid, links to each other with external dash pot valve by oil pipe, has the compensating liquid effect concurrently.
Beneficial effect
Technical solutions of the utility model compared with prior art have following characteristics:
(1) realize easily, easy to maintenance.The utility model only is made up of piston, cylinder barrel, oil pipe, dash pot valve and energy storage, and is simple in structure; Constituent elements is not high to accuracy requirement, is easy to processing; Only depend on the switching electricity condition that changes electromagnetic valve can realize the adjusting of dumping force in the practical application, control easily; Electromagnetic valve needs regular work, belong to consumable accessory, but electromagnetic valve is gauge member, and is cheap, and adopts outlet structure, easy to maintenance.
(2) principle is simple, highly versatile.The utility model is realized the adjusting of dumping force by the orifice size of control fluid, and principle is simple; The size of orifice size is determined by the size of the cutoff port on the throttling valve core again, and throttling valve core can be changed, and can change different throttling valve core in the reality as required, has stronger commonality for different vehicles.
Description of drawings
Fig. 1-be the adjustable hydro pneumatic suspension scheme drawing of orifice size controllable type three-stage damping of the utility model embodiment;
Fig. 2-be the adjustable hydro pneumatic suspension damping of the orifice size controllable type three-stage damping force-velocity curve of the utility model embodiment;
Wherein: 1-piston, 2-cylinder barrel, 3-dash pot valve, 4-throttling valve core, 5-throttling valve core, 6-uphold unloader valve, 7-electromagnetic valve, 8-energy storage, 9-electromagnetic valve, 10-throttling valve core, 11-compression unloader valve, 12-oil pipe.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the adjustable hydro pneumatic suspension of a kind of orifice size controllable type three-stage damping of the present utility model.Comprise piston 1, cylinder barrel 2, dash pot valve 3, throttling valve core 4, throttling valve core 5, uphold unloader valve 6, electromagnetic valve 7, energy storage 8, electromagnetic valve 9, throttling valve core 10, compression unloader valve 11 and oil pipe 12; Wherein piston 1 is divided into two not connected chambeies with cylinder barrel 2 inner chambers, and cylinder barrel 2 links to each other with dash pot valve 3 by oil pipe 12, and dash pot valve 3 is communicated with energy storage 8 by oil pipe 12.Wherein dash pot valve 3 is made up of electromagnetic valve 7, electromagnetic valve 9, throttling valve core 4, throttling valve core 5, throttling valve core 10, compression unloader valve 11, extension unloader valve 6.The oil circuit that dash pot valve 3 inside are processed with 5 install in parallels is used for the circulation of fluid, wherein throttling valve core 4, throttling valve core 5, throttling valve core 10 are installed in respectively in 5 oil circuits 3, have throttling pore on the throttling valve core, be used to produce dumping force, throttling valve core is replaceable; Electromagnetic valve 7, electromagnetic valve 9 respectively with 3 throttling valve core in 2 be disposed in series in the oil circuit, be used to control the switching of this oil circuit; Compression unloader valve 11 and extension unloader valve 6 are installed in respectively in 2 other in 5 oil circuits, in compression and extension stroke, play unidirectional conducting and off-load effect respectively.Throttling valve core 5 place oil circuit open and-shut modes are subjected to electromagnetic valve 7 controls, throttling valve core 10 place oil circuit open and-shut modes are subjected to electromagnetic valve 9 controls, and the cutoff port size big or small and on the throttling valve core 10 of the cutoff port on the throttling valve core 5 is identical, and the cutoff port on the throttling valve core 4 uses as the normal open hole; The switching electricity condition of electromagnetic valve 7 and electromagnetic valve 9 combines and can control three kinds of different orifice sizes respectively, realizes three grades of different dumping forces, and is as shown in the table:
Carry out stand test through the adjustable hydro pneumatic suspension of a kind of orifice size controllable type three-stage damping to the utility model embodiment, test results shows:
1, the adjustable hydro pneumatic suspension of the utility model orifice size controllable type three-stage damping can produce desired three-stage damping, and hydro pneumatic suspension is functional, and damping force characteristics is stable.Dumping force-power speed curve as shown in Figure 2.
2, the adjustable hydro pneumatic suspension of the utility model orifice size controllable type three-stage damping, the scope that its dumping force is adjustable has contained the dumping force of three kinds of common shock absorbers, according to different road conditions, select different damping modes respectively for use, can realize more superior cushioning performance, improve the comformability of vehicle, improve road holding different roads.
Claims (1)
1. adjustable hydro pneumatic suspension of orifice size may command type three-stage damping, it is characterized in that: comprise piston, cylinder barrel, oil pipe, dash pot valve and energy storage, wherein piston is divided into two not connected chambeies with cylinder barrel, the cylinder barrel epicoele is provided with oil outlet, link to each other with external dash pot valve, energy storage by oil pipe, cavity of resorption communicates with atmosphere; Fluid in the cylinder barrel flows into energy storage by oil pipe through external dash pot valve; Dash pot valve comprises 3 throttling valve core, 2 electromagnetic valves, 1 compression unloader valve and 1 extension unloader valve, the oil circuit that dash pot valve inside is processed with 5 install in parallels is used for the circulation of fluid, 3 throttling valve core are installed in respectively in 5 oil circuits 3, have throttling pore on the throttling valve core, throttling valve core is replaceable; 2 electromagnetic valves respectively with 3 throttling valve core in 2 be disposed in series in the oil circuit; 1 compression unloader valve and 1 extension unloader valve are installed in respectively in 2 other in 5 oil circuits; Energy storage divides two chambeies, and a chamber is filled with the unreactable gas of certain pressure in advance; Another chamber is full of fluid, links to each other with external dash pot valve by oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201237635U CN201317237Y (en) | 2008-11-19 | 2008-11-19 | Adjustable oil-gas suspension with controllable throttle area and three-level damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201237635U CN201317237Y (en) | 2008-11-19 | 2008-11-19 | Adjustable oil-gas suspension with controllable throttle area and three-level damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201317237Y true CN201317237Y (en) | 2009-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201237635U Expired - Fee Related CN201317237Y (en) | 2008-11-19 | 2008-11-19 | Adjustable oil-gas suspension with controllable throttle area and three-level damping |
Country Status (1)
| Country | Link |
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| CN (1) | CN201317237Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139613A (en) * | 2011-02-15 | 2011-08-03 | 北京科技大学 | Oil gas suspension pressure balance device for mine automobile |
| CN109083966A (en) * | 2018-08-31 | 2018-12-25 | 南京理工大学 | A kind of wound gas of waveform pipe ring is used to be held |
| CN113586645A (en) * | 2021-06-08 | 2021-11-02 | 合肥工业大学 | Multistage adjusting damping valve, shock absorber using damping valve and suspension system |
| CN114704588A (en) * | 2022-01-26 | 2022-07-05 | 陈昱洲 | Damping vibration attenuation device with parallel damping branches |
-
2008
- 2008-11-19 CN CNU2008201237635U patent/CN201317237Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139613A (en) * | 2011-02-15 | 2011-08-03 | 北京科技大学 | Oil gas suspension pressure balance device for mine automobile |
| CN102139613B (en) * | 2011-02-15 | 2012-09-26 | 北京科技大学 | Oil gas suspension pressure balance device for mine automobile |
| CN109083966A (en) * | 2018-08-31 | 2018-12-25 | 南京理工大学 | A kind of wound gas of waveform pipe ring is used to be held |
| CN109083966B (en) * | 2018-08-31 | 2020-07-24 | 南京理工大学 | Wave pipe surrounding type gas inerter |
| CN113586645A (en) * | 2021-06-08 | 2021-11-02 | 合肥工业大学 | Multistage adjusting damping valve, shock absorber using damping valve and suspension system |
| CN113586645B (en) * | 2021-06-08 | 2022-08-12 | 合肥工业大学 | Multistage adjusting damping valve, shock absorber using damping valve and suspension system |
| WO2022257899A1 (en) * | 2021-06-08 | 2022-12-15 | 合肥工业大学 | Multi-stage adjustment damping valve, and shock absorber and suspension system using same |
| CN114704588A (en) * | 2022-01-26 | 2022-07-05 | 陈昱洲 | Damping vibration attenuation device with parallel damping branches |
| CN114704588B (en) * | 2022-01-26 | 2024-01-09 | 陈昱洲 | Parallel damping branch damping vibration attenuation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20111119 |