CN202170950U - Air spring with functions of space-limiting buffering, pressure-limiting buffering and volume static rigidity readjusting - Google Patents
Air spring with functions of space-limiting buffering, pressure-limiting buffering and volume static rigidity readjusting Download PDFInfo
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- CN202170950U CN202170950U CN2011202410996U CN201120241099U CN202170950U CN 202170950 U CN202170950 U CN 202170950U CN 2011202410996 U CN2011202410996 U CN 2011202410996U CN 201120241099 U CN201120241099 U CN 201120241099U CN 202170950 U CN202170950 U CN 202170950U
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Abstract
A passive air suspension system which is generally used at present has the defects that an air spring of a passive air suspension is bad in self rigidity property, the rigidity of air bags with standard series and the matching parameters of the whole vehicle are not reasonable, and the rigidity can not be individually adjusted, so that the vehicle which uses the passive air suspension is more serious in a side-sway phenomenon when the vehicle runs, a passenger and a driver feel dizzy and uncomfortable, and the popularization and the application of the passive air suspension are seriously influenced. An air spring with functions of space-limiting buffering, pressure-limiting buffering and volume static rigidity readjusting is simple and easy to adjust the static rigidity of the air spring, simple in structure, and low in cost. The dynamic rigidity of the air spring can be effectively improved, and the impact of the dynamic load to the vehicle body can be reduced, before airbags of a buffering air chamber and a buffering orifice plug are compressed at the front of a vehicle body limiting block. The dynamic rigidity can be automatically reduced, the impact of a road lug boss to the vehicle body can be reduced, and the smoothness and the comfortableness of the vehicle can be improved when the vehicle meets the lug boss on the road surface during running.
Description
One, technical field:
The present invention relates to a kind of vehicle air suspension and use pneumatic spring.Thisly add the one-way valve pressure limiting by buffering air chamber spacing buffering and subtract to dash and occupy the composite air spring of regulating quiet rigidity combination with the air bag internal volume and especially be adapted to the carrying big bus; The city bus big bus; Also be 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, and has 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, and seriously influences 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 passenger vehicle.
Three, summary of the invention:
The object of the invention will be developed a kind of low cost exactly, and is simple and reliable and can be accurately carry out personalization to the quiet rigidity of standard air bag and regulate; Can effectively improve again and adopt passive type air suspension vehicle impact resistance; Can reduce its dynamic stiffness automatically in the time of can also in driving, running into the road surface projection, reduce the pneumatic spring of projection the impact of vehicle body.
Solution of the present invention is: this spacing buffering adds pressure limiting and subtracts towards transferring the pneumatic spring of quiet rigidity with volume, is combined by air bag 1, upper mounting plate 2, buffering orifice plug 3, buffering air chamber 4, lower installation board 5, adjusting bolt 6, piston 7, locking nut 8 and one-way valve 9.Buffering orifice plug 3 is contained on the central position of upper mounting plate 2 inner planes, and buffering air chamber 4 is contained on the central position of lower installation board 5 inner planes, and its height and throttling cushion stroke are according to the height setting of vehicle body height limit stoper; Piston 7 is contained in the hole of buffering air chamber 4 bottoms; Regulate bolt 6 and be contained on the central position of lower installation board 5, its upper end heads on the lower plane of piston 7, and lower installation board 5 is stretched out in the lower end, and leaves adjustment stroke; Locking nut 8 is contained in the bottom of regulating bolt 6, and it is loosening to prevent to regulate bolt 6.One-way valve 9 is installed on the outer side surface of buffering air chamber 4, is communicated with the spring chamber of one-way valve 9 through the aperture on buffering air chamber 4 sidewalls; The static stiffness of pneumatic spring is regulated: unclamp locking nut 8, turn and regulate bolt 6, piston 7 is moved up, just reduced the gas actual volume in the air bag 1, improved the quiet rigidity of pneumatic spring; Otherwise, just reduced the quiet rigidity of pneumatic spring; Height according to the vehicle body limit stoper in air bag 1 is provided with damping device, runs into heavier dynamic load effect when vehicle is in operation, suddenly downwards towards the time; Before the vehicle body limiting stopper is near the limiting stopper on the vehicle bridge; Buffering orifice plug 3 near or got into the circular hole on buffering air chamber 4 tops, strengthened the gas flow pressure reduction of 4 of air bag 1 gentle plenum chamber, improved the dynamic stiffness of pneumatic spring; Help to reduce the impact acceleration of vehicle body, alleviate impact vehicle body.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.This step pressure can be opened one-way valve 9 with the pressure reduction that buffering air chamber 4 internal air pressures form; Rapid communicated air bags 1 gentle plenum chamber 4; Increased the available gas volume in the air bag 1; Reduce the dynamic stiffness of pneumatic spring, reduce of the impact of road surface projection, improve occupant's the travelling comfort and the smoothness of vehicle vehicle body.
The present invention is simple in structure, and is with low cost, easy for installation; Reliable performance; Be quiet rigidity a kind of and that can in the passive type airsuspension system, regulate pneumatic spring easily, can improve vehicle again effectively and be in operation and run into the impact resistance that heavier dynamic load is done the time spent, can also work as wheel when running into the road surface projection; Reduce the dynamic stiffness of pneumatic spring, reduce of the impact of road surface projection vehicle body.Improve occupant's travelling comfort and driver's safe maneuverability.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
The static stiffness of pneumatic spring is regulated simple and easy to do.Its regulating method is: unclamp locking nut 8, turn and regulate bolt 6, piston 7 is moved up, just reduced the gas actual volume in the air bag 1, improved the quiet rigidity of pneumatic spring; Otherwise, just reduced the quiet rigidity of pneumatic spring; Height according to the vehicle body height limit stoper in air bag 1 is provided with buffering orifice plug 3 gentle plenum chamber 4, runs into heavier dynamic load effect when vehicle is in operation, when rushing at limiting stopper suddenly; Buffering orifice plug 3 gets into the top circular hole of buffering air chamber 4 in advance, and this moment, air bag 1 was equivalent to main gas tank, and buffering air chamber 4 is equivalent to accessory air-space; The top circular hole of buffering orifice plug 3 gentle plenum chamber 4 is equivalent to the throttle valve between major and minor air chamber; Before the vehicle body limiting stopper is near the limiting stopper on the vehicle bridge, strengthened the gas flow pressure reduction between major and minor air chamber, improved the dynamic stiffness of pneumatic spring; Help to reduce the impact acceleration of vehicle body, alleviate impact vehicle body.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.This step pressure can be opened one-way valve 9 with the pressure reduction that buffering air chamber 4 internal air pressures form; Rapid communicated air bags 1 gentle plenum chamber 4; Increased the available gas volume in the air bag 1; Reduce the dynamic stiffness of pneumatic spring, reduce of the impact of road surface projection, improve occupant's the travelling comfort and the smoothness of vehicle vehicle body.
Claims (1)
1. a spacing buffering adds pressure limiting and subtracts to dash with volume and transfer the pneumatic spring of quiet rigidity, by air bag (1), upper mounting plate (2), buffering orifice plug (3), buffering air chamber (4), lower installation board (5), regulate bolt (6), piston (7), locking nut (8) and one-way valve (9) and combine; It is characterized in that: buffering orifice plug (3) is contained on the central position of upper mounting plate (2) inner plane, and buffering air chamber (4) is contained on the central position of lower installation board (5) inner plane, and its height and throttling cushion stroke are according to the height setting of vehicle body height limit stoper; Piston (7) is contained in the hole of buffering air chamber (4) bottom; Regulate bolt (6) and be contained on the central position of lower installation board (5), its upper end heads on the lower plane of piston (7), and lower installation board (5) is stretched out in the lower end, and leaves adjustment stroke; Locking nut (8) is contained in the bottom of regulating bolt (6), and it is loosening to prevent to regulate bolt (6); One-way valve (9) is installed on the outer side surface of buffering air chamber (4), is communicated with the spring chamber of one-way valve (9) through the aperture on buffering air chamber (4) sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202410996U CN202170950U (en) | 2011-07-12 | 2011-07-12 | Air spring with functions of space-limiting buffering, pressure-limiting buffering and volume static rigidity readjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202410996U CN202170950U (en) | 2011-07-12 | 2011-07-12 | Air spring with functions of space-limiting buffering, pressure-limiting buffering and volume static rigidity readjusting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170950U true CN202170950U (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202410996U Expired - Fee Related CN202170950U (en) | 2011-07-12 | 2011-07-12 | Air spring with functions of space-limiting buffering, pressure-limiting buffering and volume static rigidity readjusting |
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| CN (1) | CN202170950U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330773A (en) * | 2011-07-12 | 2012-01-25 | 杨洁 | Air spring with function of regulating static rigidity by limitation, buffering, pressure limitation, impact reduction and filling |
| CN102330772A (en) * | 2011-07-12 | 2012-01-25 | 杨洁 | Air spring for limit buffer, pressure limit impact reduction and static rigidity adjustment with volume |
-
2011
- 2011-07-12 CN CN2011202410996U patent/CN202170950U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330773A (en) * | 2011-07-12 | 2012-01-25 | 杨洁 | Air spring with function of regulating static rigidity by limitation, buffering, pressure limitation, impact reduction and filling |
| CN102330772A (en) * | 2011-07-12 | 2012-01-25 | 杨洁 | Air spring for limit buffer, pressure limit impact reduction and static rigidity adjustment with volume |
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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: 20120321 Termination date: 20140712 |
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| EXPY | Termination of patent right or utility model |