CN102330770A - Composite air spring for limit buffer and pressure limit impact reduction - Google Patents
Composite air spring for limit buffer and pressure limit impact reduction Download PDFInfo
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- CN102330770A CN102330770A CN201110194584A CN201110194584A CN102330770A CN 102330770 A CN102330770 A CN 102330770A CN 201110194584 A CN201110194584 A CN 201110194584A CN 201110194584 A CN201110194584 A CN 201110194584A CN 102330770 A CN102330770 A CN 102330770A
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- buffering
- air
- spring
- way valve
- air spring
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Abstract
A passive air suspension system is commonly used in the prior art; due to the rigidity characteristics and the defects of the air spring of a passive air suspension, the unreasonableness of the matching between the rigidity of standard series of airbags and the parameters of a whole vehicle and the failure of personalized regulation, the vehicle which adopts the passive air suspension quite seriously swings laterally, so that a passenger and a driver are dizzy and uncomfortable, and the comfort of the passenger and the safe driving of the driver are badly affected. The phenomenon has become the main cause for badly affecting the promotion and the application of the passive air suspension on a coach. The invention discloses a composite air spring combined from a buffer air chamber and an impact reduction one-way valve, which has a simple structure and low cost. The composite air spring not only can improve the dynamic rigidity of the air spring when the air spring is close to the tail end of a stroke, relieve the impact and reduce the lateral swinging extent of a vehicle body, but also can quickly reduce the rigidity of the air spring when the vehicle runs and hits a bulge on a road surface, and reduce the impact of the bulge on the road surface on the vehicle body.
Description
One, technical field:
The present invention relates to a kind of vehicle air suspension and use pneumatic spring.This being subtracted towards the composite air spring of one-way valve combination by spacing buffering air chamber and pressure limiting 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 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, cause adopting the vehicle of the passive type air suspension side-sway phenomenon that is in operation more serious, often make occupant and driving
The member produces dizzy and uncomfortable, 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 improve the dynamic stiffness of pneumatic spring near its end of travel the time, alleviates to impact, and reduces the side-sway amplitude of vehicle body; In the time of in vehicle operating, running into the road surface projection again, reduce air spring rigidity rapidly, reduce the composite air spring of road surface projection the impact of vehicle body.
Solution of the present invention is: this spacing buffering and pressure limiting subtract the composite air spring that dashes combination, are combined by air bag 1, upper mounting plate 2, buffering orifice plug 3, buffering air chamber 4, lower installation board 5 and one-way valve 6.The center line of orifice plug 3 and accessory air-space 4 overlaps with the line at the center of upper mounting plate 2 and lower installation board 5, and fixes on it respectively.Orifice plug 3 is processed by rubber, and the center is a cavity, also can be by the other materials manufacturing, and the center is an entity.One-way valve 6 is installed on the sidewall of buffering air chamber 4, and is communicated with by the spring chamber of the aperture on its sidewall with one-way valve 6; Height according to the vehicle body height limit stoper in air bag 1 is provided with buffering orifice plug 3 gentle plenum chamber 4; When vehicle is in operation when running into the big inertia dynamic load of burst; Upper mounting plate 2 compression compressing gasbags 1 rapidly moves down, when buffering orifice plug 3 near and get into the top circular hole of cushion gas chamber 4, can to air bag 1 with cushion 4 mobile gas throttlings of air chamber; Improve the dynamic stiffness of pneumatic spring; Reduce the impact of vehicle body, improve occupant's travelling comfort, be beneficial to passive type air suspension applying in China.
When wheel is run into the road surface projection; Impact for step of wheel; Can promote that lower installation board 5 compressing gasbags 1 move upward and rapidly near buffering orifice plug 3, make the air bag 1 and the pressure reduction of 4 of buffering air chambers increase, further can cause the air pressure generation step in the air bag 1.This step pressure can be opened one-way valve 6 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, stoped air bag 1 interior gas pressure to continue the dynamic stiffness of rising and reduction pneumatic spring, reduced of the impact of road surface projection vehicle body; Improve occupant's the travelling comfort and the smoothness of vehicle.
For making things convenient for the present invention's accurate adjustment in use, orifice plug 3 can be designed to regulate the structural type of height up and down, so that adjustment orifice plug 3 and the position to axial of cushioning air chamber 4.
Can be with also can one-way valve 6 being contained on the madial wall of buffering air chamber 4; Also can change one-way valve 6 into side logical structure by bypass structure; Be contained on the madial wall of buffering air chamber 4; By the suction port of the aperture communicated air bags 1 on buffering air chamber 4 sidewalls, be communicated with the spring chamber and buffering air chamber 4 of one-way valve 6 by the aperture on the one-way valve 6 valve body sides with one-way valve 6; Also can be in one-way valve 6 inboard postpones, set up the adjustable springs seat of band Sealing in its underpart, this adjustable spring seat top heads on the spring lower plane of one-way valve 6, and with one-way valve 6 coaxial being contained on the lower installation board 5.So just can regulate the decrement of the spring of one-way valve 6 through the adjustable springs seat, regulate subtracting of one-way valve 6 according to actual needs at any time and wash open and open pressure.
The present invention is simple in structure, and is with low cost, easy for installation, and reliable performance is a kind of composite air spring of dynamic stiffness of the end of travel that can in the passive type airsuspension system, improve pneumatic spring.This composite air spring can improve employing passive type air suspension vehicle anti-roll capability to a certain extent, reduces the vehicle side-sway.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:
When vehicle is in operation when running into the big inertia dynamic load of burst; Upper mounting plate 2 compressing gasbags 1 make buffering orifice plug 3 near and get into the top circular hole of cushion gas chamber 4; To air bag 1 and 4 mobile gas throttlings of buffering air chamber, improve the dynamic stiffness of pneumatic spring, reduce the impact of vehicle body.When wheel is run into the road surface projection, impact for step of wheel, promote that lower installation board 5 compressing gasbags 1 move upward and rapidly near buffering orifice plug 3, make the air bag 1 and the pressure reduction of 4 of buffering air chambers increase, further can cause the air pressure generation step in the air bag 1.This step pressure can be opened one-way valve 6 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; Stoped air bag 1 interior gas pressure to continue the rigidity of rising and reduction pneumatic spring, reduced of the impact of road surface projection, raising occupant's the travelling comfort and the smoothness of vehicle vehicle body.
Claims (8)
1. spacing buffering and pressure limiting subtract the composite air spring that dashes combination, are combined by air bag (1), upper mounting plate (2), buffering orifice plug (3), buffering air chamber (4), lower installation board (5) and one-way valve (6); 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 limit stoper; Orifice plug (3) is processed by rubber, and the center is a cavity; One-way valve (6) is installed on the sidewall of buffering air chamber (4), and is communicated with by the spring chamber of the aperture on its sidewall with one-way valve (6); In vehicle operating, run into the big dynamic load of burst; Can promote the rapid compressing gasbag (1) of upper mounting plate (2) moves down; When buffering orifice plug (3) near and when getting into the top circular hole of cushion gas chamber (4); Can improve the dynamic stiffness of pneumatic spring to the gas throttling that flows between air bag (1) and buffering air chamber (4), reduce the impact of vehicle body; When wheel is run into the road surface projection; Impact for step of wheel; Promotion lower installation board (5) compressing gasbag (1) moves upward and rapidly near buffering orifice plug (3), makes that the pressure reduction between air bag (1) and buffering air chamber (4) increases, and further causes the air pressure generation step in the air bag (1); This step pressure can be opened one-way valve (6) with the pressure reduction that buffering air chamber (4) internal air pressure forms; The gentle plenum chamber (4) of rapid communicated air bags (1); Increased the available gas volume in the air bag (1), stoped the interior gas pressure of air bag (1) to continue the rigidity of rising and reduction pneumatic spring, reduced of the impact of road surface projection vehicle body; Improve occupant's the travelling comfort and the smoothness of vehicle.
2. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination, it is characterized in that: buffering orifice plug (3) is used the nonrubber material manufacture.
3. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination, it is characterized in that: the throttling stroke of buffering orifice plug (3) and throttling cone angle can be according to the requirement designs of different automobile types.
4. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination, it is characterized in that: buffering orifice plug (3) is the unitary solid member.
5. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination; It is characterized in that: change one-way valve (6) into side logical structure by bypass structure; Be contained on the madial wall of buffering air chamber (4); Set up the adjustable springs seat of band Sealing, this adjustable spring seat top heads on the spring lower plane of one-way valve (6), and is contained on the lower installation board (5) with one-way valve (6) is coaxial.
6. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination, it is characterized in that: buffering air chamber (4) can be according to the requirement design of different automobile types.
7. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination, it is characterized in that: one-way valve (6) is contained on the madial wall of buffering air chamber (4).
8. a kind of spacing buffering according to claim 1 and pressure limiting subtract the composite air spring that dashes combination, it is characterized in that: change one-way valve (6) into side logical structure by bypass structure, be contained on the madial wall of buffering air chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194584A CN102330770A (en) | 2011-07-12 | 2011-07-12 | Composite air spring for limit buffer and pressure limit impact reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194584A CN102330770A (en) | 2011-07-12 | 2011-07-12 | Composite air spring for limit buffer and pressure limit impact reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102330770A true CN102330770A (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110194584A Pending CN102330770A (en) | 2011-07-12 | 2011-07-12 | Composite air spring for limit buffer and pressure limit impact reduction |
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| Country | Link |
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| CN (1) | CN102330770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882909A (en) * | 2017-12-11 | 2018-04-06 | 广东溢康通空气弹簧有限公司 | A kind of air spring constructions with auxiliary chamber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858459A (en) * | 2006-04-29 | 2006-11-08 | 杨德君 | Intelligent gas spring |
| WO2008122804A2 (en) * | 2007-04-10 | 2008-10-16 | Joseph Richard Andrew Hunter | Suspension systems |
| CN102092260A (en) * | 2009-12-09 | 2011-06-15 | 贵州云马飞机制造厂 | Mechanical vehicle active suspension system |
| CN202132432U (en) * | 2011-07-12 | 2012-02-01 | 杨洁 | Compound air spring combined by position-limit buffering and pressure-limit reducing |
-
2011
- 2011-07-12 CN CN201110194584A patent/CN102330770A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858459A (en) * | 2006-04-29 | 2006-11-08 | 杨德君 | Intelligent gas spring |
| WO2008122804A2 (en) * | 2007-04-10 | 2008-10-16 | Joseph Richard Andrew Hunter | Suspension systems |
| CN102092260A (en) * | 2009-12-09 | 2011-06-15 | 贵州云马飞机制造厂 | Mechanical vehicle active suspension system |
| CN202132432U (en) * | 2011-07-12 | 2012-02-01 | 杨洁 | Compound air spring combined by position-limit buffering and pressure-limit reducing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882909A (en) * | 2017-12-11 | 2018-04-06 | 广东溢康通空气弹簧有限公司 | A kind of air spring constructions with auxiliary chamber |
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Application publication date: 20120125 |