CN202301697U - Air spring with combination of rigidity adjustment, pressure limiting and impact reduction of auxiliary gas chamber - Google Patents
Air spring with combination of rigidity adjustment, pressure limiting and impact reduction of auxiliary gas chamber Download PDFInfo
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- CN202301697U CN202301697U CN2011202524060U CN201120252406U CN202301697U CN 202301697 U CN202301697 U CN 202301697U CN 2011202524060 U CN2011202524060 U CN 2011202524060U CN 201120252406 U CN201120252406 U CN 201120252406U CN 202301697 U CN202301697 U CN 202301697U
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Abstract
Due to the self defect of the rigidity characteristic of an air spring of a driven type air suspension and unreasonable matching of the rigidity of an air bag and the parameters of a whole automobile in standard series, the side-swinging phenomenon of vehicles adopting the driven type air suspension in operation is more serious, so that passengers and a driver feel dizzy and uncomfortable usually, and the comfort level of the passengers and the safe driving of the driver are seriously influenced. The current condition is the main reason for seriously influencing the popularization and the application of the driven type air suspension to coaches. The utility model discloses an air spring with combination of rigidity adjustment, pressure limiting and impact reduction of an auxiliary gas chamber. The air spring has the advantages that the side-tipping resistance of the vehicles adopting the driven type air suspension can be effectively improved, and the side swinging of the vehicles is reduced; and when the vehicles contact bumps on roads, the rigidity of the air spring is reduced, the impact of the bumps on the roads on vehicle bodies is reduced and the driving smoothness of the vehicles is improved.
Description
One. technical field:
The utility model relates to a kind of vehicle air suspension and uses pneumatic spring.Thisly add the pressure limiting one-way valve by built-in accessory air-space change rigidity and subtract the composite air spring that dashes combination and especially be adapted to the carrying big bus, 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 air suspension widely in the suspension system of its carrier vehicle.China recent years is also being widelyd popularize and mandatory employing air suspension.In the air suspension 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, have developed multiple half active and active air suspension system.Mainly due to the reason on the cost, half active and active air suspension system can only be applied on the senior luxurious vehicle of minority at present.What generally use at present is the passive type airsuspension system; Because the defective of the air spring rigidity characteristic self of passive type air suspension; The coupling of air bag rigidity and whole-car parameters that adds standard series is unreasonable, can not carry out personalization again and regulate what is more important: in the vehicle operating because the side-sway that the mass inertia dynamic load of getting on the bus causes; Can not get the effective restraint of the dynamic rate compensation of pneumatic spring; Caused adopting the vehicle of the passive type air suspension side-sway phenomenon that is in operation more serious, it is dizzy and uncomfortable that occupant and driver are produced, seriously influence occupant's travelling comfort and driver's safe driving.This has become seriously influences the main cause that the passive type air suspension is applied on various vehicles.
Three. summary of the invention:
The purpose of the utility model will be developed a kind of low cost exactly; Simple and reliable and can improve the dynamic stiffness of pneumatic spring effectively to the mass inertia dynamic load of getting on the bus the in service of vehicle; Again can be at the composite air spring that is directed against the dynamic stiffness that reduces pneumatic spring effectively of road surface projection class step evolution dynamic load in service of vehicle; Improve the smoothness of vehicle amount, reduce the side-sway of vehicle.
The solution of the utility model is: this accessory air-space transfer rigidity adds pressure limiting and subtracts the pneumatic spring that dashes combination, is combined by air bag 1, upper mounting plate 2, accessory air-space 3, one-way valve 4, lower installation board 5 and adjusting bolt 6.The center line of accessory air-space 3 overlaps with the line at the center of lower installation board 5, and fixes on it.Be provided with a diameter on the top plan of accessory air-space 3 or on the wall body at other positions less than the aperture of communicated air bags 1 with one-way valve 4 inlet holes; On the inwall of one-way valve 4 attached to accessory air-space 3, and be communicated with the cracking pressure of regulating one-way valve 4 by adjusting bolt 6 with air bag 1 through the aperture on accessory air-space 3 sidewalls.The size of accessory air-space 3 is confirmed according to the requirement of different automobile types.The cracking pressure of one-way valve 4 can be by regulating the external according to the actual requirements adjustment of bolt 6 at pneumatic spring.Dynamic stiffness regulating method of the present invention is: because the vapour lock effect of aperture on the end face wall body of accessory air-space 3, when air bag 1 was not compressed, it had been communicated with air bag 1 and accessory air-space 3, and the volume in the air bag 1 does not have change, and the quiet rigidity of pneumatic spring is constant; And as long as air bag 1 is compressed, just having gas flows at air bag 1 and 3 of accessory air-spaces, and at this moment, this aperture will produce vapour lock, changes the dynamic stiffness of pneumatic spring, and the dynamic stiffness of pneumatic spring is changed with the speed that air bag 1 moves.Dynamic load is big more, and the speed of air bag 1 motion is just big more, and vapour lock that this aperture produces is just big more, and the dynamic stiffness of pneumatic spring just increases sooner.
When wheel is run into the road surface projection, impact for step of wheel, the air pressure that will inevitably cause in the air bag 1 produces step; The pressure reduction that this step pressure and accessory air-space 3 internal air pressures form can be opened one-way valve 4; Communicated air bags 1 and accessory air-space 3 have increased the available gas volume in the air bag 1 rapidly, reduce the dynamic stiffness of pneumatic spring; Reduce of the impact of road surface projection, improve the smoothness of vehicle vehicle body.
The present invention is simple in structure, and is with low cost, easy for installation, and reliable performance is a kind ofly can be in the passive type airsuspension system to regulate the composite air bullet of the dynamic stiffness of pneumatic spring from the motion tracking body movement.This composite air spring can improve employing passive type air suspension vehicle anti-roll capability effectively, reduces the vehicle side-sway.Can also when vehicle is run into the road surface projection, reduce the rigidity of pneumatic spring, reduce of the impact of road surface projection, improve the smoothness of vehicle driving vehicle body.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
Dynamic stiffness regulating method of the present invention is: because the vapour lock effect of the aperture on the end face wall body of accessory air-space 3, when air bag 1 was not compressed, it had been communicated with air bag 1 and accessory air-space 3, and the volume in the air bag 1 does not have change, and the quiet rigidity of pneumatic spring is constant; And as long as air bag 1 is compressed, just having gas flows at air bag 1 and 3 of accessory air-spaces, and at this moment, this aperture will produce vapour lock, changes the dynamic stiffness of pneumatic spring, and the dynamic stiffness of pneumatic spring is changed with the speed that air bag 1 moves.Dynamic load is big more, and the speed of air bag 1 motion is just big more, and vapour lock that this aperture produces is just big more, and the dynamic stiffness of pneumatic spring just increases sooner.When wheel is run into the road surface projection, impact for step of wheel, the air pressure that will inevitably cause in the air bag 1 produces step; The pressure reduction that this step pressure and accessory air-space 3 internal air pressures form can be opened one-way valve 4; Communicated air bags 1 and accessory air-space 3 have increased the available gas volume in the air bag 1 rapidly, reduce the dynamic stiffness of pneumatic spring; Reduce of the impact of road surface projection, improve the smoothness of vehicle vehicle body.The cracking pressure of one-way valve 4 can be by regulating the external according to the actual requirements adjustment of bolt 6 at pneumatic spring.
Claims (1)
1. an accessory air-space is transferred rigidity and is added pressure limiting and subtract the pneumatic spring that dashes combination, is combined by air bag (1), upper mounting plate (2), accessory air-space (3), one-way valve (4), lower installation board (5) and adjusting bolt (6); It is characterized in that: the center line of accessory air-space (3) overlaps with the line at the center of lower installation board (5), and fixes on it; Be provided with a diameter on the top plan of accessory air-space (3) less than the aperture of communicated air bags (1) with one-way valve (4) inlet hole; On the inwall of one-way valve (4) attached to accessory air-space (3), and be communicated with the cracking pressure of regulating one-way valve (4) by adjusting bolt (6) with air bag (1) through the aperture on accessory air-space (3) sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202524060U CN202301697U (en) | 2011-07-17 | 2011-07-17 | Air spring with combination of rigidity adjustment, pressure limiting and impact reduction of auxiliary gas chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202524060U CN202301697U (en) | 2011-07-17 | 2011-07-17 | Air spring with combination of rigidity adjustment, pressure limiting and impact reduction of auxiliary gas chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301697U true CN202301697U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202524060U Expired - Fee Related CN202301697U (en) | 2011-07-17 | 2011-07-17 | Air spring with combination of rigidity adjustment, pressure limiting and impact reduction of auxiliary gas chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043219A (en) * | 2019-12-07 | 2020-04-21 | 佛山市鼎科科技发展有限公司 | Elasticity-adjustable air spring |
| CN112049876A (en) * | 2019-06-06 | 2020-12-08 | 河北艾斯特瑞亚科技有限责任公司 | Air bag for pushing membrane piston |
-
2011
- 2011-07-17 CN CN2011202524060U patent/CN202301697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049876A (en) * | 2019-06-06 | 2020-12-08 | 河北艾斯特瑞亚科技有限责任公司 | Air bag for pushing membrane piston |
| CN111043219A (en) * | 2019-12-07 | 2020-04-21 | 佛山市鼎科科技发展有限公司 | Elasticity-adjustable air spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140717 |
|
| EXPY | Termination of patent right or utility model |