CN202612461U - Air spring with additional air chamber - Google Patents
Air spring with additional air chamber Download PDFInfo
- Publication number
- CN202612461U CN202612461U CN 201220171291 CN201220171291U CN202612461U CN 202612461 U CN202612461 U CN 202612461U CN 201220171291 CN201220171291 CN 201220171291 CN 201220171291 U CN201220171291 U CN 201220171291U CN 202612461 U CN202612461 U CN 202612461U
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- Prior art keywords
- metal cylinder
- air chamber
- gas tank
- main gas
- pneumatic bag
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- Expired - Fee Related
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- Vehicle Body Suspensions (AREA)
Abstract
The utility model discloses an air spring with an additional air chamber for an automotive suspension. The air spring comprises a metal cylinder with an opening on the top, wherein a limiting plate is hermetically connected at the opening on the top; a main air chamber rubber air bag is arranged in the metal cylinder; the metal cylinder is divided into an upper part space and a lower part space by the main air chamber rubber air bag; the upper part space is enclosed by the upper part of the main air chamber rubber air bag, the limiting plate and the metal cylinder; the lower part space is the additional air chamber enclosed by the lower part of the main air chamber rubber air bag and the metal cylinder; the center of the upper part of the main air chamber rubber air bag is connected with an upper cover plate, and the center of the lower part of the main air chamber rubber air bag is connected to a lower piston which is positioned in the additional air chamber; the upper part of the upper cover plate is provided with an inflation hole which is communicated with the main air chamber rubber air bag; the lower piston is provided with a throttle orifice for communicating the main air chamber rubber air bag with the additional air chamber and with an adjustable ventilation area; the bottom of the additional air chamber is provided with a pressure relief valve; and thus, variable volume of the additional air chamber in a limited size can be realized, variable rigidity is realized, and the rigidity of the spring can be conveniently and quickly adjusted by using the throttle orifice.
Description
Technical field
The utility model relates to a kind of automotive suspension and uses air spring assembly, especially can change the pneumatic spring that has auxiliary chamber of spring rate.
Background technique
Automotive suspension than traditional is used helical spring, and pneumatic spring has the characteristic that non-linear rigidity, the low natural frequency of vibration and anti-road impact, and can improve riding comfort, run smoothness and the control stability of automobile effectively.And the pneumatic spring that has auxiliary chamber has lower rigidity.
Institutes such as Wang Jiasheng work " band auxiliary chamber pneumatic spring dynamic stiffness Experimental Investigation on Factors of Affecting " with evidence can change spring rate through regulating the auxiliary chamber volume, also can come Regulation spring rigidity and damping through the circulation area of throttle orifice between adjusting auxiliary chamber and the pneumatic spring.Chinese patent number is ZL 03243150.3, and name is called " pneumatic spring ", and the volume of main chamber changes according to the air quantity in the cavity portion; The constancy of volumeization of auxiliary chamber, air flows through the hole according to the pressure difference between two chambers, has realized having the pneumatic spring of auxiliary chamber, but its volume is relatively large, is unfavorable for arranging, and its rigidity and damping regulative mode are comparatively single.
Summary of the invention
The purpose of the utility model is for the deficiency that overcomes above-mentioned existing technology a kind of pneumatic spring that has auxiliary chamber of whether participating in work and throttle orifice aperture comprehensive adjustment spring rate and damping according to auxiliary chamber to be provided.
The technological scheme that the utility model adopts is: comprise that the metal cylinder of opening is arranged at a top; The top open part limiting board that is tightly connected; Be provided with main gas tank's rubber pneumatic bag in the metal cylinder; Main gas tank's rubber pneumatic bag separates into upper and lower two-part space with metal cylinder, and the space, top is surrounded by main gas tank rubber pneumatic bag top, limiting board and metal cylinder, and the space, bottom is the auxiliary chamber that is surrounded by main gas tank rubber pneumatic bag bottom and metal cylinder; Main gas tank rubber pneumatic bag central upper portion place connects upper cover plate, and the lower central place connects the lower piston that is positioned at auxiliary chamber; Upper cover plate top has the air-filled pore that is connected with the main gas tank rubber pneumatic bag, has on the lower piston to be communicated with main gas tank's rubber pneumatic bag and auxiliary chamber and the adjustable throttle orifice of circulation area, is provided with Decompression valves bottom the auxiliary chamber.
The utility model adopts the beneficial effect that has after the technique scheme to be: can in limited volume, realize the auxiliary chamber variable volume, realize the variable of rigidity.Throttle orifice capable of using is the rigidity of Regulation spring easily and quickly.Use the utility model, can be directed against different operating modes, change different rigidity and damping, can bring into play the characteristics that pneumatic spring becomes rigidity, the low natural frequency of vibration and can filter road shocks, improve the riding comfort and the road surface friendliness of vehicle.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: 1-connecting rod; 2-air-filled pore; 3-upper cover plate; 4-main gas tank rubber pneumatic bag; 5-lower piston; 6-auxiliary chamber; 7-connecting rod; 8-Decompression valves; 9-rubber pad; 10-throttle orifice; 11-metal cylinder; 12-limiting board.
Embodiment
As shown in Figure 1, the utility model comprises that the metal cylinder 11 of opening is arranged at a top, and metal cylinder 11 is fixed on the vehicle body, can bear certain load.Metal cylinder 11 can be cylindrical, the top open part of metal cylinder 11 limiting board 12 that is tightly connected.Main gas tank's rubber pneumatic bag 4 is housed in the metal cylinder 11, and the outer wall of main gas tank's rubber pneumatic bag 4 closely contacts with metal cylinder 11 inwalls.The diameter of metal cylinder 11 is not more than the diameter of main gas tank's rubber pneumatic bag 4 after no radial constraint condition is issued to rated pressure; To guarantee that main gas tank's rubber pneumatic bag 4 closely contacts with metal cylinder 11; And restriction main gas tank rubber pneumatic bag 4 distortion diametrically, can guarantee under the pressure long duration of action of main gas tank's rubber pneumatic bag 4 indeformable.Limiting board 12 can bearing load, to enlarge the area of contact of main gas tank's rubber pneumatic bag 4 and metal cylinder 11, reduces intracapsular pressure and impact.
Main gas tank's rubber pneumatic bag 4 separates into upper and lower two-part space with metal cylinder 11, and the space, top is surrounded by main gas tank's rubber pneumatic bag 4 tops, limiting board 12 and metal cylinder 11, and the space, top links to each other with atmosphere; The space, bottom is surrounded by main gas tank's rubber pneumatic bag 4 bottoms and metal cylinder 11, and the space, bottom constitutes airtight auxiliary chamber 6.Main gas tank's rubber pneumatic bag 4 central upper portion places connect upper cover plate 3, and the lower central place connects lower piston 5, and stretch out outside the metal cylinder 11 on upper cover plate 3 tops, and lower piston 5 is positioned at auxiliary chamber 6.Upper cover plate 3, main gas tank's rubber pneumatic bag 4 and lower piston 5 threes are centered close on the same straight line, to guarantee that load evenly distributes.Center on upper cover plate 3 tops connects connecting rod 1, and connecting rod 1 connects vehicle body, bearing load.Lower piston 5 lower central connect connecting rod 7, and connecting rod 7 stretches out outside the metal cylinder 11 downwards and connects vehicle body, gives tire with the vehicle body loading transfer, and bears road shocks.Have air-filled pore 2 on upper cover plate 3 tops, air-filled pore 2 is connected with main gas tank rubber pneumatic bag 4, to give inflation in main gas tank's rubber pneumatic bag 4.Have throttle orifice 10 on the lower piston 5; Throttle orifice 10 is communicated with main gas tank's rubber pneumatic bag 4 and auxiliary chamber 6; Throttle orifice 10 circulation areas are adjustable, regulate gas and auxiliary chamber 6 interior exchange gas in main gas tank's rubber pneumatic bag 4 through different circulation areas, to realize different-stiffness and different damping.
In auxiliary chamber 6 bottoms the block rubber that withstands shocks 9 as limit stoper is set.In auxiliary chamber 6 bottoms Decompression valves 8 is set, excessive when auxiliary chamber 6 internal air pressures, perhaps according to the operating mode demand, when needing to regulate auxiliary chamber 6 internal air pressures, can exit through Decompression valves 8.
After to the pneumatic spring imposed load, on the one hand,, promptly, can regulate the position of lower piston 5 in metal cylinder 11 through regulating the height of pneumatic spring through regulating vehicle suspension height, promptly realized regulating the volume size of auxiliary chamber 6; On the other hand,, can regulate the gas pressure in the auxiliary chamber 6, also can realize the adjusting of rigidity through regulating the switching of Decompression valves 8; The third aspect; Through regulating throttle orifice 10 apertures, through the gas pressure of air-filled pore 2 adjusting main gas tank rubber pneumatic bags 4, after inflation reaches rated pressure; Guarantee that main gas tank's rubber pneumatic bag 4 closely contacts with the inwall of metal cylinder 11, blocking-up metal cylinder 11 bottoms and extraneous gas exchange.Because the effect of limiting board 12 and metal cylinder 11, main gas tank's rubber pneumatic bag 4 can only move downward, and so just can regulate the volume of auxiliary chamber 6.When pneumatic spring was worked, Decompression valves 8 kept shut, and at specific operation, opened when excessive as regulating pneumatic spring height or auxiliary chamber 6 internal pressures.When pneumatic spring is worked, can regulate circulation area through the aperture of free adjusting throttle orifice 10, allow auxiliary chamber 6 volumes and main gas tank's rubber pneumatic bag 4 of metal cylinder 11 sealings to carry out gas exchange, thereby regulate the rigidity and the damping of pneumatic spring.
Claims (2)
1. pneumatic spring that has auxiliary chamber; Comprise that the metal cylinder of opening (11) is arranged at a top; The top open part limiting board (12) that is tightly connected; It is characterized in that: be provided with main gas tank's rubber pneumatic bag (4) in the metal cylinder (11); Main gas tank's rubber pneumatic bag (4) separates into upper and lower two-part space with metal cylinder (11), and the space, top is surrounded by main gas tank's rubber pneumatic bag (4) top, limiting board (12) and metal cylinder (11), and the space, bottom is the auxiliary chamber (6) that is surrounded by main gas tank's rubber pneumatic bag (4) bottom and metal cylinder (11); Main gas tank's rubber pneumatic bag (4) central upper portion place connects upper cover plate (3), and the lower central place connects the lower piston (5) that is positioned at auxiliary chamber (6); Upper cover plate (3) top has the air-filled pore (2) that is connected with main gas tank's rubber pneumatic bag (4); Have connection main gas tank's rubber pneumatic bag (4) and auxiliary chamber (6) and the adjustable throttle orifice (10) of circulation area on the lower piston (5), auxiliary chamber (6) bottom is provided with Decompression valves (8).
2. a kind of pneumatic spring that has auxiliary chamber according to claim 1 is characterized in that: the outer wall that the gas pressure of main gas tank's rubber pneumatic bag (4) reaches the main gas tank's rubber pneumatic bag (4) after the rated pressure closely contacts with metal cylinder (11) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171291 CN202612461U (en) | 2012-04-23 | 2012-04-23 | Air spring with additional air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171291 CN202612461U (en) | 2012-04-23 | 2012-04-23 | Air spring with additional air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612461U true CN202612461U (en) | 2012-12-19 |
Family
ID=47346163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220171291 Expired - Fee Related CN202612461U (en) | 2012-04-23 | 2012-04-23 | Air spring with additional air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612461U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281975A (en) * | 2018-12-07 | 2019-01-29 | 东风商用车有限公司 | A kind of adjustable air spring of rigidity |
| CN109356955A (en) * | 2018-12-07 | 2019-02-19 | 长沙理工大学 | A kind of wheel hub drives the air spring for electric vehicle with multilayer auxiliary chamber |
| CN109515105A (en) * | 2018-12-07 | 2019-03-26 | 长沙理工大学 | Wheel hub drives the air suspension control method for electric vehicle with multilayer auxiliary chamber |
-
2012
- 2012-04-23 CN CN 201220171291 patent/CN202612461U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281975A (en) * | 2018-12-07 | 2019-01-29 | 东风商用车有限公司 | A kind of adjustable air spring of rigidity |
| CN109356955A (en) * | 2018-12-07 | 2019-02-19 | 长沙理工大学 | A kind of wheel hub drives the air spring for electric vehicle with multilayer auxiliary chamber |
| CN109515105A (en) * | 2018-12-07 | 2019-03-26 | 长沙理工大学 | Wheel hub drives the air suspension control method for electric vehicle with multilayer auxiliary chamber |
| CN109356955B (en) * | 2018-12-07 | 2021-09-10 | 长沙理工大学 | Air spring with multilayer additional air chambers for hub-driven electric automobile |
| CN109515105B (en) * | 2018-12-07 | 2021-12-31 | 长沙理工大学 | Air suspension control method with multilayer additional air chambers for hub-driven electric vehicle |
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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: 20121219 Termination date: 20130423 |