CN102269234A - Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness - Google Patents
Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness Download PDFInfo
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- CN102269234A CN102269234A CN2011102028807A CN201110202880A CN102269234A CN 102269234 A CN102269234 A CN 102269234A CN 2011102028807 A CN2011102028807 A CN 2011102028807A CN 201110202880 A CN201110202880 A CN 201110202880A CN 102269234 A CN102269234 A CN 102269234A
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- air bag
- dynamic stiffness
- pneumatic spring
- barrier film
- air spring
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Abstract
An air spring in an automobile suspension system is vital to the improvement of harshness and comfort of a vehicle, the protection of roads and goods and the 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 the whole vehicle and cannot be adjusted in a personalized mode, so the vehicle has a severe side-sway phenomenon in the driving process, passengers and a driver frequently feel dizzy and uncomfortable, and the comfort of the passengers and the safe driving of the driver are severely influenced. The invention provides a composite air spring developed for solving the problem. The dynamic stiffness of the air spring is adjusted through a throttling hole on a diaphragm of the air spring, so that the dynamic stiffness of the air spring when the air spring is subjected to an inertia dynamic load is effectively improved, the side-sway of a vehicle body is reduced, and the comfort of the vehicle is improved.
Description
One, technical field:
The present invention relates to the pneumatic spring of a kind of vehicle with the passive type air suspension, it is separated into the major-minor air chamber by barrier film with air bag, and its dynamic stiffness is regulated by the fixed orifice on the barrier film.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 according to the Rational Parameters coupling and personalized adjusting of car load.It two is exactly: the dynamic stiffness of pneumatic spring can not be followed dynamic load and be regulated.
Three, summary of the invention:
Purpose of the present invention will be developed a kind of low cost exactly, and variation simple and reliable, that can follow dynamic load improves dynamic stiffness automatically, improves the vehicle anti-roll capability, reduces the composite air spring of vehicle side-sway.
Solution of the present invention is: this diaphragm type auxiliary tank is regulated the pneumatic spring of dynamic stiffness, is combined by air bag 1, upper mounting plate 2, lower installation board 3 and barrier film 4.Be provided with barrier film 4 on the inwall of air bag 1, barrier film 4 can be one, also can be several; Barrier film 4 should have identical elasticity coefficient with air bag 1, can be made into one with air bag 1, also can separately make, and adopts gluing mode synthetic or hot sticky glue or mechanical connection synthetic again; The mounting point of barrier film 4 and piece number can be decided according to the requirement of different automobile types, and its external diameter should be more than or equal to the internal diameter of air bag; On barrier film 4, be provided with throttling pore; The aperture of this throttling pore and quantity can be according to the requirement settings of different automobile types.
Dynamic stiffness regulating method of the present invention is: because barrier film 4 has been separated into the major-minor air chamber with air bag 1, and on barrier film 4, be provided with throttling pore, when air bag 1 was not compressed, they had been communicated with each sub-air chamber of air bag 1, 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 between each sub-air chamber of air bag 1, 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.
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 effectively regulate the dynamic stiffness of pneumatic spring effectively.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: dynamic stiffness regulating method of the present invention: because barrier film 4 has been separated into the major-minor air chamber with air bag 1, and on barrier film 4, be provided with throttling pore, when air bag 1 is not compressed, it has been communicated with each sub-air chamber of air bag 1, 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 between each sub-air chamber of air bag 1, 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.
Claims (6)
1. a diaphragm type auxiliary tank is regulated the pneumatic spring of dynamic stiffness, is combined by air bag (1), upper mounting plate (2), lower installation board (3) and barrier film (4); It is characterized in that: on the inwall of air bag (1), be provided with barrier film (4), on barrier film (4), be provided with throttling pore; Dynamic stiffness regulating method of the present invention is: because barrier film (4) has been separated into the major-minor air chamber with air bag (1), and on barrier film (4), be provided with throttling pore, when air bag (1) when not being compressed, they have been communicated with each sub-air chamber of air bag (1), 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 between each sub-air chamber of air bag (1), 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, 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.
2. a kind of diaphragm type auxiliary tank according to claim 1 is regulated the pneumatic spring of dynamic stiffness, it is characterized in that: barrier film (4) can with air bag (1) once-through.
3. a kind of diaphragm type auxiliary tank according to claim 1 is regulated the pneumatic spring of dynamic stiffness, it is characterized in that: barrier film (4) can with air bag (1) divide body formed after, adopting gluing or hot sticky gummed or mechanical connection synthetic.
4. a kind of diaphragm type auxiliary tank according to claim 1 is regulated the pneumatic spring of dynamic stiffness, it is characterized in that: the mounting point of barrier film (4) in air bag (1) can be determined according to the requirement of different automobile types.
5. a kind of diaphragm type auxiliary tank according to claim 1 is regulated the pneumatic spring of dynamic stiffness, it is characterized in that: the piece number of barrier film (4) in air bag (1) can be determined according to the requirement of different automobile types.
6. a kind of diaphragm type auxiliary tank according to claim 1 is regulated the pneumatic spring of dynamic stiffness, it is characterized in that: barrier film (4) is gone up the size and the quantity of throttle orifice and can be determined according to the requirement of different automobile types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102028807A CN102269234A (en) | 2011-07-19 | 2011-07-19 | Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102028807A CN102269234A (en) | 2011-07-19 | 2011-07-19 | Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102269234A true CN102269234A (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102028807A Pending CN102269234A (en) | 2011-07-19 | 2011-07-19 | Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992719A (en) * | 2015-06-17 | 2015-10-21 | 东南大学 | Minitype air spring laptop hard disk vibration isolator |
| CN105065527A (en) * | 2015-09-09 | 2015-11-18 | 东南大学 | Air spring vibration isolator with diaphragm |
| CN114934967A (en) * | 2022-05-17 | 2022-08-23 | 广东省科学院智能制造研究所 | Air spring vibration damper and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382006A (en) * | 1993-09-29 | 1995-01-17 | The Goodyear Tire & Rubber Company | Airspring piston and airspring assembly |
| CN1670399A (en) * | 2005-04-22 | 2005-09-21 | 清华大学 | Rigidity and damp adjustable air spring vibration isolator |
| CN202251609U (en) * | 2011-07-19 | 2012-05-30 | 杨洁 | Diaphragm type air spring capable of assisting air chamber to regulate dynamic stiffness |
-
2011
- 2011-07-19 CN CN2011102028807A patent/CN102269234A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382006A (en) * | 1993-09-29 | 1995-01-17 | The Goodyear Tire & Rubber Company | Airspring piston and airspring assembly |
| CN1670399A (en) * | 2005-04-22 | 2005-09-21 | 清华大学 | Rigidity and damp adjustable air spring vibration isolator |
| CN202251609U (en) * | 2011-07-19 | 2012-05-30 | 杨洁 | Diaphragm type air spring capable of assisting air chamber to regulate dynamic stiffness |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992719A (en) * | 2015-06-17 | 2015-10-21 | 东南大学 | Minitype air spring laptop hard disk vibration isolator |
| CN104992719B (en) * | 2015-06-17 | 2018-04-24 | 东南大学 | Miniature air spring notebook hard disk vibration isolator |
| CN105065527A (en) * | 2015-09-09 | 2015-11-18 | 东南大学 | Air spring vibration isolator with diaphragm |
| CN105065527B (en) * | 2015-09-09 | 2017-05-17 | 东南大学 | Air spring vibration isolator with diaphragm |
| CN114934967A (en) * | 2022-05-17 | 2022-08-23 | 广东省科学院智能制造研究所 | Air spring vibration damper and application thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20111207 |