CN102330781A - Air spring with functions of regulating static rigidity and dynamic rigidity by filler and membrane hole and reducing impact - Google Patents
Air spring with functions of regulating static rigidity and dynamic rigidity by filler and membrane hole and reducing impact Download PDFInfo
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- CN102330781A CN102330781A CN201110207940A CN201110207940A CN102330781A CN 102330781 A CN102330781 A CN 102330781A CN 201110207940 A CN201110207940 A CN 201110207940A CN 201110207940 A CN201110207940 A CN 201110207940A CN 102330781 A CN102330781 A CN 102330781A
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- air bag
- pneumatic spring
- barrier film
- dynamic stiffness
- packing
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Abstract
An air spring in an automobile suspension system is of key importance for improving the smoothness and the comfortableness of a vehicle, protecting roads and cargoes and limiting overload. In a conventional commonly used passive air suspension system, static rigidity of the air spring is irrationally matched with the whole vehicle and cannot be regulated personally, so the vehicle produces a serious sidesway phenomenon during running and passengers and a driver are often dizzy and uncomfortable; therefore, the comfortableness of the passengers and the safety driving of the driver are influenced greatly. The invention discloses a compound air spring so as to solve the problem. Due to the filler of the air spring, the static rigidity of the air spring is personally regulated; due to a throttling hole in a membrane of the air spring, the dynamic rigidity of the air spring is regulated; therefore, the dynamic rigidity of the air spring responding to an inertial dynamic load is improved and sidesway of a vehicle body is reduced; and when the vehicle collides a boss on a road surface, the dynamic rigidity of the vehicle is reduced automatically, impact of the boss on the vehicle body is reduced and the comfortableness 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 regulates quiet rigidity by packing, by barrier film air bag is separated into the major-minor air chamber, and its dynamic stiffness is regulated by the fixed orifice on the barrier film; When vehicle is run into the road surface projection under steam, can also reduce its dynamic stiffness automatically, to reduce 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.It two is exactly: the dynamic stiffness of pneumatic spring can not be followed dynamic load and regulated.
Three, summary of the invention:
The object of the invention will be developed a kind of low cost exactly, and variation simple and reliable and that can follow dynamic load improves dynamic stiffness automatically, improves the vehicle anti-roll capability, reduces the vehicle side-sway; Can carry out personalization to its quiet rigidity again and regulate, in the time of can also in vehicle driving, running into the road surface projection, reduce its dynamic stiffness automatically, reduce the impact composite air spring of projection vehicle body.
Solution of the present invention is: this packing and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, by air bag 1, upper mounting plate 2, lower installation board 3, packing 4, barrier film 5, subtract towards film piece 6 be connected rivet 7 and combine.On the inwall of air bag 1, be provided with barrier film 5, barrier film 5 can be one, also can be several; Barrier film 5 can be made into one with air bag 1, also can separately make, and adopts gluing mode synthetic or hot viscose glue synthetic again, also can adopt the mode of mechanical connection synthetic; The mounting point of barrier film 5 and piece number can be decided according to the requirement of different automobile types; On barrier film 5, be provided with throttling pore; The aperture of this throttling pore and quantity can be according to the requirement settings of different automobile types.Subtract towards film piece 6 by having connected rivet 7 connections in the central position of barrier film 5, subtract the throttle orifice that is provided with on the film piece 6, its aperture and quantity are all less than the throttle orifice on the barrier film 5; Connecting rivet 7 also can be screw.Packing 4 is bulk granular material or larger-size block or the bigger flowable mass of viscosity.
Quiet rigidity regulating method of the present invention is: before lower installation board 3 is installed, in air bag 1, put into through calculating or test the packing 4 of confirming volume, packing 4 has occupied the equivalent volumes of pressurized gas in the air bag 1, has heightened the quiet rigidity of pneumatic spring; Otherwise, take out the packing 4 that part has been inserted by lower installation board 3, just increased the equivalent volumes of pressurized gas in the air bag 1, reduced the quiet rigidity of pneumatic spring; Dynamic stiffness regulating method of the present invention is: because barrier film 5 has been separated into the major-minor air chamber with air bag 1; And be provided with throttling pore with subtracting on film piece 6 at barrier film 5; When air bag 1 is not compressed; They have been communicated with the major-minor air chamber of air bag 1, 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 between the major-minor 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.When the vehicle inertia dynamic load that is in operation increases; Will compressing gasbag 1; Promote upper mounting plate 2 and move down, this moment, the gas of barrier film 5 epicoeles can flow downward, and the pressure of epicoele is higher than cavity of resorption; Subtract towards film piece 6 compacted being attached on the barrier film 5, gas can only be through subtracting less orifice flow on the film piece 6 to cavity of resorption; The dynamic stiffness of regulating pneumatic spring by the less vapour lock that the hole produced that subtracts on the film piece 6; 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, is beneficial to the balance dynamic load, reduces the inclination and the side-sway of vehicle.And when running into the road surface projection in the vehicle driving, promptly compressing gasbag 1 promotes to move on the lower installation board 3; At this moment, the pressure of air bag 1 cavity of resorption can be higher than its epicoele, and this pressure can promote to subtract towards film piece 6 and upwarp; And be communicated with the upper and lower cavity of barrier film 5 by the more and bigger hole on the barrier film 5; Make vapour lock drop to minimum, reduce its dynamic stiffness automatically, to reduce the impact of projection 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 effectively regulate the quiet dynamic stiffness of pneumatic spring effectively.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
Embodiment of the present invention is: quiet rigidity regulating method of the present invention is: before lower installation board 3 is installed; In air bag 1, put into through calculating or test the packing 4 of confirming volume; Packing 4 has occupied the equivalent volumes of pressurized gas in the air bag 1, has heightened the quiet rigidity of pneumatic spring; Otherwise, take out the packing 4 that part has been inserted by lower installation board 3, just increased the equivalent volumes of pressurized gas in the air bag 1, reduced the quiet rigidity of pneumatic spring.Dynamic stiffness regulating method of the present invention is: because barrier film 5 has been separated into the major-minor air chamber with air bag 1; And be provided with throttling pore with subtracting on film piece 6 at barrier film 5; When air bag 1 is not compressed; They have been communicated with the major-minor air chamber of air bag 1, 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 between the major-minor 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.When the vehicle inertia dynamic load that is in operation increases; Will compressing gasbag 1; Promote upper mounting plate 2 and move down, this moment, the gas of barrier film 5 epicoeles can flow downward, and the pressure of epicoele is higher than cavity of resorption; Subtract towards film piece 6 compacted being attached on the barrier film 5, gas can only be through subtracting less orifice flow on the film piece 6 to cavity of resorption; The dynamic stiffness of regulating pneumatic spring by the less vapour lock that the hole produced that subtracts on the film piece 6; 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, is beneficial to the balance dynamic load, reduces the inclination and the side-sway of vehicle.And when running into the road surface projection in the vehicle driving, promptly compressing gasbag 1 promotes to move on the lower installation board 3; At this moment, the pressure of air bag 1 cavity of resorption can be higher than its epicoele, and this pressure can promote to subtract towards film piece 6 and upwarp; And be communicated with the upper and lower cavity of air bag 1 by the more and bigger hole on the barrier film 5; Make vapour lock drop to minimum, reduce its dynamic stiffness automatically, to reduce the impact of projection vehicle body.
Claims (9)
1. packing and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, by air bag (1), upper mounting plate (2), lower installation board (3), packing (4), barrier film (5), subtract towards film piece (6) be connected rivet (7) and combine; It is characterized in that: on the inwall of air bag (1), be provided with barrier film (5), subtract towards film piece (6) by having connected rivet (7) connection in the central position of barrier film (5); Be provided with the throttle orifice that varies in size and do not wait with quantity on film piece (6) and the barrier film (5) subtracting; Quiet rigidity regulating method of the present invention is: before lower installation board (3) is installed; In air bag (1), put into through calculating or test the packing (4) of confirming volume; Packing (4) has occupied the equivalent volumes of the interior pressurized gas of air bag (1), has heightened the quiet rigidity of pneumatic spring; Otherwise, take out the packing (4) that part has been inserted by lower installation board (3), just increased the equivalent volumes of the interior pressurized gas of air bag (1), reduced the quiet rigidity of pneumatic spring; Dynamic stiffness regulating method of the present invention is: because barrier film (5) has been separated into the major-minor air chamber with air bag (1); And at barrier film (5) with subtract on film piece (6) and be provided with throttling pore; When air bag (1) when not being compressed; They have been communicated with the major-minor air chamber of air bag (1), 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 between the major-minor 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; When the vehicle inertia dynamic load that is in operation increases; Will compressing gasbag (1); Promote upper mounting plate (2) and move down, this moment, the gas of barrier film (5) epicoele can flow downward, and the pressure of epicoele is higher than cavity of resorption; Subtract towards film piece (6) is compacted and be attached on the barrier film (5), gas can only be through subtracting less orifice flow on the film piece (6) to cavity of resorption; The dynamic stiffness of regulating pneumatic spring by the less vapour lock that the hole produced that subtracts on the film piece (6); Dynamic load is big more, and air bag (1) movement velocity 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, is beneficial to the balance dynamic load, reduces the inclination and the side-sway of vehicle; And when running into the road surface projection in the vehicle driving, promptly compressing gasbag (1) promotes to move on the lower installation board (3); At this moment, the pressure of air bag cavity of resorption can be higher than its epicoele, and this pressure can promote to subtract towards film piece (6) and upwarp; And be communicated with the upper and lower cavity of barrier film (5) by the more and bigger hole on the barrier film (5); Make vapour lock drop to minimum, reduced the dynamic stiffness of pneumatic spring automatically, to reduce the impact of projection vehicle body.
2. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: barrier film (5) can with air bag (1) once-through.
3. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: barrier film (5) can with air bag (1) divide body formed after, adopting gluing or hot viscose glue to close and mechanical connection.
4. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: the mounting point of barrier film (5) in air bag (1) can be confirmed according to the requirement of different automobile types.
5. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: the piece number of barrier film (5) in air bag (1) can be confirmed according to the requirement of different automobile types.
6. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: barrier film (5) with subtract go up the size and the quantity of throttle orifice towards film piece (6) can be definite according to the requirement of different automobile types.
7. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: packing (4) is the bulk granular material.
8. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: packing (4) is larger-size block object.
9. a kind of packing according to claim 1 and membranes pores are regulated the pneumatic spring that quiet dynamic stiffness plus-minus dashes, and it is characterized in that: packing (4) is the bigger flowable mass of viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207940A CN102330781A (en) | 2011-07-24 | 2011-07-24 | Air spring with functions of regulating static rigidity and dynamic rigidity by filler and membrane hole and reducing impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207940A CN102330781A (en) | 2011-07-24 | 2011-07-24 | Air spring with functions of regulating static rigidity and dynamic rigidity by filler and membrane hole and reducing impact |
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| CN102330781A true CN102330781A (en) | 2012-01-25 |
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| CN201110207940A Pending CN102330781A (en) | 2011-07-24 | 2011-07-24 | Air spring with functions of regulating static rigidity and dynamic rigidity by filler and membrane hole and reducing impact |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0504717A1 (en) * | 1991-03-16 | 1992-09-23 | Continental Aktiengesellschaft | Air spring with an elastomeric air spring bellows |
| US5382006A (en) * | 1993-09-29 | 1995-01-17 | The Goodyear Tire & Rubber Company | Airspring piston and airspring assembly |
| CN2547546Y (en) * | 2002-06-09 | 2003-04-30 | 株洲时代新材料科技股份有限公司 | Abrasion-free non-linear-damping combined vibration-damp locating spring |
| CN202326877U (en) * | 2011-07-24 | 2012-07-11 | 杨洁 | Air spring for regulating static/dynamic stiffness by virtue of filler and diaphragm hole to increase/reduce impact |
-
2011
- 2011-07-24 CN CN201110207940A patent/CN102330781A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0504717A1 (en) * | 1991-03-16 | 1992-09-23 | Continental Aktiengesellschaft | Air spring with an elastomeric air spring bellows |
| US5382006A (en) * | 1993-09-29 | 1995-01-17 | The Goodyear Tire & Rubber Company | Airspring piston and airspring assembly |
| CN1103145A (en) * | 1993-09-29 | 1995-05-31 | 固特异轮胎和橡胶公司 | Airspring piston and airspring assembly |
| CN2547546Y (en) * | 2002-06-09 | 2003-04-30 | 株洲时代新材料科技股份有限公司 | Abrasion-free non-linear-damping combined vibration-damp locating spring |
| CN202326877U (en) * | 2011-07-24 | 2012-07-11 | 杨洁 | Air spring for regulating static/dynamic stiffness by virtue of filler and diaphragm hole to increase/reduce impact |
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Application publication date: 20120125 |