CN102359527A - Composite air spring with static stiffness adjusted by filling and impact reduced by auxiliary air chamber - Google Patents
Composite air spring with static stiffness adjusted by filling and impact reduced by auxiliary air chamber Download PDFInfo
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- CN102359527A CN102359527A CN201110194719XA CN201110194719A CN102359527A CN 102359527 A CN102359527 A CN 102359527A CN 201110194719X A CN201110194719X A CN 201110194719XA CN 201110194719 A CN201110194719 A CN 201110194719A CN 102359527 A CN102359527 A CN 102359527A
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- auxiliary tank
- air bag
- spring
- air
- way valve
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Abstract
An air spring in an automobile suspension system is vital to improvement of harshness and comfort of a vehicle, protection of a road and goods and limitation of overload. In a passive air suspension system which is generally used at present, the static stiffness of the air spring is unreasonably matched with that of the whole vehicle and cannot be adjusted in an individualized mode, so the vehicle has a severe side sway phenomenon during driving, passengers and a driver feel dizzy and uncomfortable, and the comfort of the passengers and the safe driving of the driver are severely influenced. In order to solve the problem, the invention provides a composite air spring with impact reduced by an inner filler of an air sac and an auxiliary air chamber. The static stiffness of the composite air spring can be adjusted by the filler, and the problem that the stiffness of the air spring, which is selected according to the standard, does not meet the actual requirement and cannot be adjusted is solved; and the dynamic stiffness of the air spring can be automatically reduced when the vehicle encounters a bump on a road surface during driving, the impact of the bump on a vehicle body is reduced, and the comfort of the vehicle can be improved.
Description
One, technical field:
The present invention relates to the pneumatic spring of a kind of vehicle with the passive type air suspension, its quiet rigidity is regulated by packing, can also reduce its dynamic stiffness automatically when when driving, running into the road surface projection, reduces the impact of projection to vehicle body.This pneumatic spring 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 and the hydro-pneumatic suspension 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; Because the anti-roll stiffness of pneumatic spring is lower; 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.Cause the one of the main reasons of this phenomenon to be: the quiet rigidity of pneumatic spring can't be regulated with personalized according to the Rational Parameters coupling of car load.
Three, summary of the invention:
The object of the invention will be developed a kind of low cost exactly, and is simple and reliable, can carry out rational Match and personalized the adjusting to the quiet rigidity of the pneumatic spring of passive type suspension system, improves the vehicle anti-roll capability, reduces the vehicle side-sway; Can also reduce its dynamic stiffness automatically when when driving, running into the road surface projection, reduce the composite air spring of projection the impact of vehicle body.
Solution of the present invention is: quiet rigidity is regulated in this filling and auxiliary tank subtracts the composite air spring that dashes, and is combined by air bag 1, upper mounting plate 2, lower installation board 3, auxiliary tank 4, one-way valve 5 and packing 6.Auxiliary tank 4 is installed on the inner plane of upper mounting plate 2, on their junction plane, leaves a small amount of slit, is convenient to let out the residual pressure except that in the auxiliary tank 4; One-way valve 5 is installed on the outer bottom plane of auxiliary tank 4, is communicated with the spring chamber of one-way valve 5 through the aperture on auxiliary tank 4 bottom planes; One-way valve 5 also can be installed on the outer wall of auxiliary tank 4 sides, is communicated with the spring chamber of one-way valve 5 through the aperture on auxiliary tank 4 sidewalls; Also can one-way valve 5 be installed on the inwall of inner side surface of auxiliary tank 4, the suction port of one-way valve 5 is communicated with air bag 1 through the aperture on auxiliary tank 4 sidewalls, and the hole that the spring chamber of one-way valve 5 passes through on its valve body is communicated with auxiliary tank 4; Quiet rigidity regulating method of the present invention is: before upper mounting plate 2 assemblings, insert prior packing 6 through calculating or the definite volume of experiment, packing 6 can be the bulk granular thing, the flowable mass that block and viscosity are very big; The existence of air bag 1 inner stuffing 6 has reduced the equivalent volume that holds gas in the air bag 1, thereby has heightened the quiet rigidity of pneumatic spring.The raising of the quiet rigidity of pneumatic spring helps reducing the side-sway of vehicle body when advancing, and improves the dynamic stability of vehicle body.Otherwise, in air bag 1, take out the packing 6 that part has dropped into, just quite increased the equivalent volume that holds gas in the air bag 1; Thereby reached the purpose of turning down the quiet rigidity of pneumatic spring, satisfied the rational Match of vehicle the quiet rigidity of pneumatic spring.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 auxiliary tank 4 internal air pressures form can be opened one-way valve 5; Communicated air bags 1 and auxiliary tank 4 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 occupant's travelling comfort vehicle vehicle body.
The present invention is simple in structure, and is with low cost, easy for installation, and reliable performance is a kind of combined air air spring that can carry out rational Match and personalized adjusting effectively to the quiet rigidity of pneumatic spring.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
Embodiment of the present invention is: before upper mounting plate 2 assemblings of air bag 1, insert prior through calculating or test the packing 6 of confirming volume; The existence of air bag 1 inner stuffing 6 has reduced the equivalent volume that holds gas in the air bag 1, thereby has heightened the quiet rigidity of pneumatic spring.Otherwise, in air bag 1, take out the packing 6 that part has dropped into, just quite increased the equivalent volume that holds gas in the air bag 1; Thereby reached the purpose of turning down the quiet rigidity of pneumatic spring.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 auxiliary tank 4 internal air pressures form can be opened one-way valve 5, and communicated air bags 1 and auxiliary tank 4 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 occupant's the travelling comfort and the smoothness of vehicle vehicle body.
Claims (5)
1. fill and regulate quiet rigidity and auxiliary tank subtracts the composite air spring that dashes for one kind, combine by air bag (1), upper mounting plate (2), lower installation board (3), auxiliary tank (4), one-way valve (5) and packing (6); It is characterized in that: auxiliary tank (4) is installed on the inner plane of upper mounting plate (2); One-way valve (5) is installed on the outer bottom plane of auxiliary tank (4), is communicated with the spring chamber of one-way valve (5) through the aperture on auxiliary tank (4) bottom plane; Quiet rigidity regulating method of the present invention is: before upper mounting plate (2) assembling of air bag (1), insert prior packing (6) through calculating or the definite volume of experiment, packing (6) is the bulk granular thing; The existence of air bag (1) inner stuffing (6) has reduced in the air bag (1) holds the equivalent volume of gas, thereby has heightened the quiet rigidity of pneumatic spring; Otherwise, in air bag (1), take out the packing (6) that part has dropped into, just quite increased the equivalent volume that holds gas in the air bag (1); Thereby reached the purpose of turning down the quiet rigidity of pneumatic spring, satisfied the rational Match of vehicle the quiet rigidity of pneumatic spring.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 auxiliary tank (4) internal air pressure form can be opened one-way valve (5), and communicated air bags (1) and auxiliary tank (4) 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 occupant's the travelling comfort and the smoothness of vehicle vehicle body.
2. a kind of filling the according to claim 1 regulated quiet rigidity and auxiliary tank subtracts the composite air spring that dashes, and it is characterized in that: packing (6) is the very big flowable mass of viscosity.
3. a kind of filling the according to claim 1 regulated quiet rigidity and auxiliary tank subtracts the composite air spring that dashes, and it is characterized in that: packing (6) is the bulk solid material of size less than air bag (1) internal diameter.
4. a kind of filling the according to claim 1 regulated quiet rigidity and auxiliary tank subtracts the composite air spring that dashes; It is characterized in that: one-way valve (5) is installed on the outer wall of auxiliary tank (4) side, is communicated with the spring chamber of one-way valve (5) through the aperture on auxiliary tank (4) sidewall.
5. a kind of filling the according to claim 1 regulated quiet rigidity and auxiliary tank subtracts the composite air spring that dashes, and it is characterized in that:; One-way valve (5) is installed on the inwall of inner side surface of auxiliary tank (4), the suction port of one-way valve (5) is communicated with air bag (1) through the aperture on auxiliary tank (4) sidewall, and the spring chamber of one-way valve (5) is communicated with auxiliary tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194719XA CN102359527A (en) | 2011-07-12 | 2011-07-12 | Composite air spring with static stiffness adjusted by filling and impact reduced by auxiliary air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194719XA CN102359527A (en) | 2011-07-12 | 2011-07-12 | Composite air spring with static stiffness adjusted by filling and impact reduced by auxiliary air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102359527A true CN102359527A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110194719XA Pending CN102359527A (en) | 2011-07-12 | 2011-07-12 | Composite air spring with static stiffness adjusted by filling and impact reduced by auxiliary air chamber |
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| CN (1) | CN102359527A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0914976A1 (en) * | 1997-05-26 | 1999-05-12 | Isuzu Motors Limited | Suspension device for vehicles |
| US5934652A (en) * | 1998-05-28 | 1999-08-10 | The Goodyear Tire & Rubber Company | Air spring bumper and method of mounting |
| CN2888179Y (en) * | 2005-11-18 | 2007-04-11 | 平凉市荣康实业有限责任公司 | Inside extension composite polyurethane buffer |
| US7380799B2 (en) * | 2003-11-05 | 2008-06-03 | Bfs Diversified Products, Llc | Adjustable vehicle suspension system with adjustable-rate air spring |
| CN202215652U (en) * | 2011-07-12 | 2012-05-09 | 杨洁 | Composite air spring with static stiffness adjusted by filling and with auxiliary tank reducing impact |
-
2011
- 2011-07-12 CN CN201110194719XA patent/CN102359527A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0914976A1 (en) * | 1997-05-26 | 1999-05-12 | Isuzu Motors Limited | Suspension device for vehicles |
| US5934652A (en) * | 1998-05-28 | 1999-08-10 | The Goodyear Tire & Rubber Company | Air spring bumper and method of mounting |
| US7380799B2 (en) * | 2003-11-05 | 2008-06-03 | Bfs Diversified Products, Llc | Adjustable vehicle suspension system with adjustable-rate air spring |
| CN2888179Y (en) * | 2005-11-18 | 2007-04-11 | 平凉市荣康实业有限责任公司 | Inside extension composite polyurethane buffer |
| CN202215652U (en) * | 2011-07-12 | 2012-05-09 | 杨洁 | Composite air spring with static stiffness adjusted by filling and with auxiliary tank reducing impact |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |