CN202301698U - Air spring with variable volume and diaphragm hole capable of adjusting dynamic and static stiffness to increase and reduce impact - Google Patents
Air spring with variable volume and diaphragm hole capable of adjusting dynamic and static stiffness to increase and reduce impact Download PDFInfo
- Publication number
- CN202301698U CN202301698U CN2011202624497U CN201120262449U CN202301698U CN 202301698 U CN202301698 U CN 202301698U CN 2011202624497 U CN2011202624497 U CN 2011202624497U CN 201120262449 U CN201120262449 U CN 201120262449U CN 202301698 U CN202301698 U CN 202301698U
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- air bag
- barrier film
- piston
- pneumatic spring
- variable volume
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Abstract
An air spring with a variable volume and a diaphragm hole capable of adjusting dynamic and static stiffness to increase and reduce impact is formed by combining an air bag 1, a upper mounting plate 2, a lower mounting plate 3, a piston 4, a cylinder 5, an adjusting bolt 6, a locking nut 7, a diaphragm 8, an impact reducing module 9 and a connecting rivet 10. The air spring is characterized in that the diaphragm 8 is arranged on the inner wall of the air bag 1, the impact reducing module 9 is installed at the middle position of the diaphragm 8 in connected mode through the connecting rivet 10, and orifices of different sizes and unequal number are arranged on the diaphragm 8 and the impact reducing module 9. The cylinder barrel 5 is fixedly installed at the center position of an upper plane of the lower mounting plate 3, the piston is sleeved in the cylinder 4, the adjusting bolt 6 is installed at the center position of the lower mounting plate 3, the upper portion of the adjusting bolt 6 butts against a lower plane of the piston 4, the lower portion of the adjusting bolt 6 extends out of a lower plane of the lower mounting plate 3, an adjusting stroke is reserved, the locking nut 7 is installed on the lower portion of the adjusting bolt 6. The air spring can improve comfortableness of vehicles.
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 adjustable piston, 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: the pneumatic spring that this variable volume and membranes pores transfer quiet dynamic stiffness plus-minus to dash, by air bag 1, upper mounting plate 2, lower installation board 3, piston 4, cylinder barrel 5, adjusting screw 6, locking nut 7, barrier film 8, subtract towards film piece 9 be connected rivet 10 and combine.On the inwall of air bag 1, be provided with barrier film 8, barrier film 8 can be one, also can be several; Barrier film 8 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 8 and piece number can be decided according to the requirement of different automobile types; On barrier film 8, 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 9 by having connected rivet 10 connections in the central position of barrier film 8, subtract the throttle orifice that is provided with on the film piece 9, in aperture and quantity all less than the throttle orifice on the barrier film 8; Connecting rivet 10 also can be screw.The planar central position installs and fixes cylinder barrel 5 on lower installation board 3; Piston 4 is sleeved in the cylinder barrel 5, regulates bolt 6 and is installed on the central position of lower installation board 3, and its top withstands on the lower plane of piston 4; The lower plane of lower installation board 3 is stretched out in the bottom, and leaves adjustment stroke.Locking nut 7 is installed in the bottom of regulating bolt 6; Quiet rigidity regulating method of the present invention is: unclamp locking nut 7; Bolt 6 is regulated in turn; Promoting piston 4 upwards moves in cylinder barrel 5; Piston 4 moving up in cylinder barrel 5 just opened up greatly the volume between piston 4 bottom surfaces and cylinder barrel 5 bottoms, and it has reduced the equivalent volume that holds gas in the air bag 1, heightened the quiet rigidity of pneumatic spring.Otherwise; Bolt 6 is regulated in reverse turn will make adjusting bolt 6 move down; Piston 4 has reduced the volume between piston 4 bottom surfaces and cylinder barrel 5 bottoms because the effect of air bag 1 interior gas pressure moves down thereupon in cylinder barrel 5, 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.Dynamic stiffness regulating method of the present invention is: because barrier film 8 has been separated into the major-minor air chamber with air bag 1; And be provided with throttling pore with subtracting on film piece 9 at barrier film 8; 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 8 epicoeles can flow downward, and the pressure of epicoele is higher than cavity of resorption; Subtract towards film piece 9 compacted being attached on the barrier film 8, gas can only be through subtracting less orifice flow on the film piece 9 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 9; 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 barrier film 8 cavity of resorptions can be higher than its epicoele, and this pressure can promote to subtract towards film piece 9 and upwarp; And be communicated with the upper and lower cavity of barrier film 8 by the more and bigger hole on the barrier film 8; 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: unclamp locking nut 7; Bolt 6 is regulated in turn; Promoting piston 4 upwards moves in cylinder barrel 5; Piston 4 moving up in cylinder barrel 5 just opened up greatly the volume between piston 4 bottom surfaces and cylinder barrel 5 bottoms, and it has reduced the equivalent volume that holds gas in the air bag 1, heightened the quiet rigidity of pneumatic spring.Otherwise; Bolt 6 is regulated in reverse turn will make adjusting bolt 6 move down; Piston 4 has reduced the volume between piston 4 bottom surfaces and cylinder barrel 5 bottoms because the effect of air bag 1 interior gas pressure moves down thereupon in cylinder barrel 5, 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.Dynamic stiffness regulating method of the present invention is: because barrier film 8 has been separated into the major-minor air chamber with air bag 1; And be provided with throttling pore with subtracting on film piece 9 at barrier film 8; 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 air bag 1 epicoele can flow downward, and the pressure of epicoele is higher than cavity of resorption; Subtract towards film piece 9 compacted being attached on the barrier film 8, gas can only be through subtracting less orifice flow on the film piece 9 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 9; 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 9 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 8; Make vapour lock drop to minimum, reduce its dynamic stiffness automatically, to reduce the impact of projection vehicle body.
Claims (4)
1. variable volume and membranes pores are transferred the pneumatic spring that quiet dynamic stiffness plus-minus dashes, by air bag (1), upper mounting plate (2), lower installation board (3), piston (4), cylinder barrel (5), regulate bolt (6) and locking nut (7), barrier film (8), subtract towards film piece (9) be connected rivet (10) and combine; It is characterized in that: on the inwall of air bag (1), be provided with barrier film (8), subtract towards film piece (9) by having connected rivet (10) connection in the central position of barrier film (8); Be provided with the throttle orifice that varies in size and do not wait with quantity on film piece (9) and the barrier film (8) subtracting; Last planar central position at lower installation board (3) installs and fixes cylinder barrel (5); Piston (4) is sleeved in the cylinder barrel (5); Regulating bolt (6) is installed on the central position of lower installation board (3); Its top withstands on the lower plane of piston (4), and the lower plane of lower installation board (3) is stretched out in the bottom, and leaves adjustment stroke; Locking nut (7) is installed in the bottom of regulating bolt (6).
2. the pneumatic spring that a kind of variable volume according to claim 1 and membranes pores transfer quiet dynamic stiffness plus-minus to dash is characterized in that: barrier film (8) and air bag (1) once-through.
3. the pneumatic spring that a kind of variable volume according to claim 1 and membranes pores transfer quiet dynamic stiffness plus-minus to dash is characterized in that: after barrier film (8) and air bag (1) branch are body formed, adopt gluing or hot viscose glue synthetic.
4. the pneumatic spring that a kind of variable volume according to claim 1 and membranes pores transfer quiet dynamic stiffness plus-minus to dash is characterized in that: after barrier film (8) and air bag (1) branch are body formed, adopt mechanical connection synthetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202624497U CN202301698U (en) | 2011-07-24 | 2011-07-24 | Air spring with variable volume and diaphragm hole capable of adjusting dynamic and static stiffness to increase and reduce impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202624497U CN202301698U (en) | 2011-07-24 | 2011-07-24 | Air spring with variable volume and diaphragm hole capable of adjusting dynamic and static stiffness to increase and reduce impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301698U true CN202301698U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202624497U Expired - Fee Related CN202301698U (en) | 2011-07-24 | 2011-07-24 | Air spring with variable volume and diaphragm hole capable of adjusting dynamic and static stiffness to increase and reduce impact |
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| Country | Link |
|---|---|
| CN (1) | CN202301698U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410330A (en) * | 2011-07-24 | 2012-04-11 | 杨洁 | Variable volume air spring capable of increasing and reducing impact by regulating static and dynamic stiffness through diaphragm hole |
| WO2017147120A1 (en) * | 2016-02-23 | 2017-08-31 | Hendrickson Usa, L.L.C. | Damping air spring with asymmetrically shaped orifice |
-
2011
- 2011-07-24 CN CN2011202624497U patent/CN202301698U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410330A (en) * | 2011-07-24 | 2012-04-11 | 杨洁 | Variable volume air spring capable of increasing and reducing impact by regulating static and dynamic stiffness through diaphragm hole |
| WO2017147120A1 (en) * | 2016-02-23 | 2017-08-31 | Hendrickson Usa, L.L.C. | Damping air spring with asymmetrically shaped orifice |
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| 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: 20120704 Termination date: 20140724 |
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| EXPY | Termination of patent right or utility model |