CN102384202A - Air spring with dynamic stiffness regulated by orifice on built-in auxiliary air chamber - Google Patents
Air spring with dynamic stiffness regulated by orifice on built-in auxiliary air chamber Download PDFInfo
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- CN102384202A CN102384202A CN2011101996302A CN201110199630A CN102384202A CN 102384202 A CN102384202 A CN 102384202A CN 2011101996302 A CN2011101996302 A CN 2011101996302A CN 201110199630 A CN201110199630 A CN 201110199630A CN 102384202 A CN102384202 A CN 102384202A
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Abstract
The invention discloses an air spring in an automobile suspension system, wherein the air spring is of vital importance for improving the smoothness and comfortableness of an automobile, protecting roads and goods and restricting overloads. For the commonly-used passive air suspension system at present, because the static rigidity of air bag products of standard series can not be regulated individually according to the practical requirements of the automobile, and can not effectively compensate the dynamic stiffness of the spring, the side way phenomenon of the automobile in running is more serious, and passengers and drivers are enabled to be dizzy and uncomfortable. The invention provides an air spring with dynamic stiffness regulated by an orifice on a built-in auxiliary air chamber aiming at the difficulty. In order to improve the dynamic stiffness property of the existing standard configuration air bag, a convenient and simple method is provided; and the volume of an auxiliary air chamber and the dimension of the orifice on the wall body can effectively regulate the dynamic stiffness of the air spring. The air spring provided by the invention is simple in structure, and is rapid and reliable in response, and the cost is low.
Description
One, technical field:
The present invention relates to a kind of vehicle air suspension and use pneumatic spring.This pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness especially is adapted to the carrying big bus, and the city bus big bus also is adapted to shipping truck and rail traffic vehicles, and the passive type airsuspension system of special vehicle.
Two, background technique:
In order to improve ride of vehicle, improve the travelling comfort of taking, alleviate the damage of vehicle to road and goods, developed country has adopted pneumatic spring widely in the suspension system of its carrier vehicle.China recent years is also being widelyd popularize and mandatory employing pneumatic spring.In the pneumatic spring technology of constantly development, in order further to improve the rigidity control characteristic of pneumatic spring, more be applicable to the variation of car load in order to it, people have carried out deep exploration.In the passive type airsuspension system of generally using at present,, add that the quiet rigidity of the air bag product of standard series can not be carried out the personalization adjusting according to the actual demand of vehicle because the anti-roll stiffness of pneumatic spring is lower; The more important thing is: the dynamic stiffness of pneumatic spring can not be followed the inertia dynamic load of the quality of getting on the bus and regulated; Caused the vehicle side-sway phenomenon that is in operation more serious; It is dizzy and uncomfortable that occupant and driver are produced, and seriously influences occupant's travelling comfort and driver's safe driving.
Three, summary of the invention:
The object of the invention will be developed a kind of low cost exactly, and simple and reliable, ability quick adjustment air bag dynamic stiffness improves the vehicle anti-roll capability, reduces the composite air spring of vehicle side-sway.
Solution of the present invention is: this pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness is combined by air bag 1, upper mounting plate 2, accessory air-space 3 and lower installation board 4.Centralized positioning with lower installation board 4 installs and fixes accessory air-space 3, is provided with a throttling pore on the sidewall of accessory air-space 3; This throttling pore can be arranged on the arbitrary position of accessory air-space 3 wall bodies except that the bottom surface, and its size can be set according to different vehicles; The internal volume of accessory air-space 3 and shape can be decided according to the difference of the actual demand of vehicle; Its Manufacturing material can metallic material, also can be nonmetallic material.Accessory air-space 3 can be arranged on the upper mounting plate 2.When vehicle inertia dynamic load increase at the volley, upper mounting plate 2 moves down at the effect lower compression air bag 1 of dynamic load, simultaneously the air in the compressing gasbag 1; And make it between air bag 1 and accessory air-space 3, to flow, at this moment, the throttling pore that is arranged on accessory air-space 3 wall bodies can produce vapour lock; Improve the dynamic stiffness of pneumatic spring; And the speed increment that under the dynamic load effect, moves down along with upper mounting plate 2 and improving, the dynamic load of balance vehicle body stops the inclination of vehicle body and leans forward and swing back; Reduce the side-sway of vehicle body when advancing, improve the dynamic stability and the travelling comfort of vehicle body.When stationary vehicle or motion speed slow or dynamic load hour, the throttling pore that is arranged on accessory air-space 3 wall bodies has been communicated with air bag 1 and accessory air-space 3, the quiet dynamic stiffness of pneumatic spring is constant.
The present invention is simple in structure, and is with low cost, easy for installation, and reliable performance is a kind of method that in the passive type airsuspension system, can effectively reduce the vehicle side-sway; It can adapt to the requirement of different automobile types through the volume that changes accessory air-space 3.The size of throttling pore that also can be through changing accessory air-space 3 wall bodies adapts to the requirement of different automobile types.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
Embodiment of the present invention is: at first, and by the size of the throttling pore of the internal volume of confirming accessory air-space 3 according to the actual demand of vehicle or test and accessory air-space 3 wall bodies.When vehicle dynamic load increase at the volley, upper mounting plate 2 moves down at the effect lower compression air bag 1 of inertia dynamic load, simultaneously the pressurized air in the compressing gasbag 1; And make it between air bag 1 and accessory air-space 3, to flow, at this moment, the throttling pore that is arranged on accessory air-space 3 wall bodies can produce vapour lock; Improve the dynamic stiffness of pneumatic spring; And the speed increment that under the dynamic load effect, moves down along with upper mounting plate 2 and improving, the dynamic load of balance vehicle body stops the inclination of vehicle body and leans forward and swing back; Reduce the side-sway of vehicle body when advancing, improve the dynamic stability and the travelling comfort of vehicle body.When stationary vehicle or motion speed slow or dynamic load hour, the throttling pore that is arranged on accessory air-space 3 wall bodies has been communicated with air bag 1 and accessory air-space 3, the quiet dynamic stiffness of pneumatic spring is constant.
Claims (8)
1. the pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness is combined by air bag (1), upper mounting plate (2), accessory air-space (3) and lower installation board (4); It is characterized in that: the centralized positioning with lower installation board (4) installs and fixes accessory air-space (3), is provided with a throttling pore on the sidewall of accessory air-space (3); When vehicle inertia dynamic load increase at the volley, upper mounting plate (2) moves down at the effect lower compression air bag (1) of dynamic load, simultaneously the air in the compressing gasbag (1); And make it between air bag (1) and accessory air-space (3), to flow, at this moment, the throttling pore that is arranged on accessory air-space (3) wall body can produce vapour lock; Improve the dynamic stiffness of pneumatic spring; And the speed increment that under the dynamic load effect, moves down along with upper mounting plate (2) and improving, the dynamic load of balance vehicle body stops the inclination of vehicle body and leans forward and swing back; Reduce the side-sway of vehicle body when advancing, improve the dynamic stability and the travelling comfort of vehicle body; When stationary vehicle or motion speed slow or inertia dynamic load hour, the throttling pore that is arranged on accessory air-space (3) wall body has been communicated with air bag (1) and accessory air-space (3), the quiet dynamic stiffness of pneumatic spring is constant.
2. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1 is characterized in that: the internal capacity of accessory air-space (3) can change according to the different demands of different automobile types to its air spring rigidity change curve.
3. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1 is characterized in that: the big I of the throttling pore of accessory air-space 3 wall bodies changes according to the different demands of different automobile types to its air spring rigidity change curve.
4. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1, it is characterized in that: accessory air-space (3) is made into one with lower installation board (4).
5. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1 is characterized in that: the outer shape of accessory air-space (3) can be according to the requirement design of different automobile types
6. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1, it is characterized in that: accessory air-space (3) is made with metallic material.
7. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1, it is characterized in that: accessory air-space (3) is made with nonmetallic material.
8. a kind of pneumatic spring by the adjusting of the throttle orifice on built-in accessory air-space dynamic stiffness according to claim 1, it is characterized in that: accessory air-space (3) can be arranged on the upper mounting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101996302A CN102384202A (en) | 2011-07-17 | 2011-07-17 | Air spring with dynamic stiffness regulated by orifice on built-in auxiliary air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101996302A CN102384202A (en) | 2011-07-17 | 2011-07-17 | Air spring with dynamic stiffness regulated by orifice on built-in auxiliary air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102384202A true CN102384202A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101996302A Pending CN102384202A (en) | 2011-07-17 | 2011-07-17 | Air spring with dynamic stiffness regulated by orifice on built-in auxiliary air chamber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410905A (en) * | 2013-07-31 | 2013-11-27 | 江苏大学 | Combined air spring integrated with coil spring with additional air chamber with adjustable volume |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0166702A2 (en) * | 1984-06-27 | 1986-01-02 | FIAT AUTO S.p.A. | Variable-stiffnes air spring, particularly for motor vehicle suspensions |
| CN1103145A (en) * | 1993-09-29 | 1995-05-31 | 固特异轮胎和橡胶公司 | Airspring piston and airspring assembly |
| CN2663729Y (en) * | 2002-04-06 | 2004-12-15 | 裕一挨恩西斯株式会社 | Air spring |
-
2011
- 2011-07-17 CN CN2011101996302A patent/CN102384202A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0166702A2 (en) * | 1984-06-27 | 1986-01-02 | FIAT AUTO S.p.A. | Variable-stiffnes air spring, particularly for motor vehicle suspensions |
| CN1103145A (en) * | 1993-09-29 | 1995-05-31 | 固特异轮胎和橡胶公司 | Airspring piston and airspring assembly |
| CN2663729Y (en) * | 2002-04-06 | 2004-12-15 | 裕一挨恩西斯株式会社 | Air spring |
Non-Patent Citations (1)
| Title |
|---|
| 胡维等: "带附加空气室空气弹簧垂向刚度有限元分析", 《汽车科技》, no. 3, 31 May 2011 (2011-05-31), pages 15 - 19 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410905A (en) * | 2013-07-31 | 2013-11-27 | 江苏大学 | Combined air spring integrated with coil spring with additional air chamber with adjustable volume |
| CN103410905B (en) * | 2013-07-31 | 2015-08-05 | 江苏大学 | The helical spring integral type composite air spring of auxiliary chamber adjustable volume |
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Application publication date: 20120321 |