CN102401076A - Compound air spring combining internal spiral spring with volume adjustment - Google Patents
Compound air spring combining internal spiral spring with volume adjustment Download PDFInfo
- Publication number
- CN102401076A CN102401076A CN2011101683721A CN201110168372A CN102401076A CN 102401076 A CN102401076 A CN 102401076A CN 2011101683721 A CN2011101683721 A CN 2011101683721A CN 201110168372 A CN201110168372 A CN 201110168372A CN 102401076 A CN102401076 A CN 102401076A
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- spring
- piston
- helical spring
- air bag
- volume adjustment
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Abstract
The invention discloses a compound air spring combining an internal spiral spring with volume adjustment. The compound air spring is formed by combining an air bag 1, an upper installation plate 2, an upper positioning pin 3, a spiral spring 4, a cylinder sleeve 5, a piston 6, a lower installation plate 7, an adjusting bolt 8 and a locking nut 9 and is structurally characterized in that the upper positioning pin 3 is fixed at the central position of the inner plane of the upper installation plate 2; the cylinder sleeve 5 is fixed at the central position of the inner plane of the lower installation plate 7; the upper part of the spiral spring 4 is sleeved on the upper positioning pin 3, and the lower part of the spiral spring 4 is sleeved on the cylinder sleeve 5; the piston 6 is arranged in the cylinder sleeve 5; the adjusting bolt 8 is arranged on the lower installation plate 7; and the top of the adjusting bolt is pressed against the lower plane of the piston 6. In the invention, the bolt 8 is used for driving the piston 6 to move upwards in the cylinder sleeve 5, and the static stiffness of the air spring is adjusted by occupying the effective volume of compressed air in the air bag 1; and the dynamic stiffness of the air spring is compensated by using the spiral spring 4.
Description
One. technical field:
The present invention relates to a kind of vehicle air suspension and use pneumatic spring.This pneumatic spring by built-in helical spring and volume adjustment combination 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 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; When the Rigidity Matching of pneumatic spring, people have ignored owing to optional standard series air bag rigidity and the static stiffness that concrete vehicle requires the difference of rigidity to need are regulated.And often because the difficulty that the static stiffness of air bag does not match and caused its dynamic rate to regulate.In the passive type airsuspension system then the static stiffness of air bag not match be to cause the serious major reason of side-sway in the vehicle operating.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.
Three. summary of the invention:
The object of the invention will be developed a kind of low cost exactly, simple and reliable, can easy adjusting the quiet rigidity dynamic stiffness of make-up air spring fast again of pneumatic spring, improve the vehicle anti-roll capability, the composite air spring of minimizing vehicle side-sway.
Solution of the present invention is: this composite air spring by built-in helical spring and volume adjustment combination is combined by air bag 1, upper mounting plate 2, last locating stud 3, helical spring 4, cylinder sleeve 5, piston 6, lower installation board 7, adjusting bolt 8 and locking nut 9.On the inner plane central position of upper mounting plate 2 and lower installation board 6, install locating stud 3 and cylinder sleeve 5; The top of helical spring 4 is enclosed within on the locating stud 3; The bottom is enclosed within on the cylinder sleeve 5, the clean interior outage degree of the air bag 1 the when free height of helical spring 4 is equal to or slightly greater than vehicle maximum ride height.When vehicle was in maximum ride height, helical spring 4 is in did not have compression or small amount of compression state, and the rigidity of pneumatic spring is by determining according to the inflation pressure of load request and air actual volume in the air bag 1 in the air bag 1; Vehicle is in when using ride height always, and helical spring 4 is in compressive state, and the rigidity of pneumatic spring is by determining according to the inflation pressure of load request and the rigidity of air actual volume in the air bag 1 and helical spring 4 in the air bag 1; When vehicle was in minimum ride height, helical spring 4 was in compressive state, and the rigidity of pneumatic spring is by determining according to the air actual volume in the inflation pressure of load request and the air bag 1 and the rigidity of helical spring 4 in the air bag 1; The quiet rigidity regulating method of this composite air spring is: the adjusting of turn to the right bolt 8 will promote piston 6 and in cylinder barrel 5, upwards move; Piston 6 moving up in cylinder barrel 5 just opened up greatly the volume between piston 6 bottom surfaces and cylinder barrel 5 bottoms; It has equaled to reduce the equivalent volume that holds gas in the air bag 1, thereby has reached the quiet rigidity of heightening pneumatic spring.Otherwise; Turn left will make adjusting bolt 8 move down; Piston 6 since in the air bag 1 effect of gas pressure in cylinder barrel 5, move down thereupon, reduced the volume between piston 6 bottom surfaces and cylinder barrel 5 bottoms, also just increased hold in the air bag 1 gas the equivalent volume; Thereby reached the purpose of turning down pneumatic spring, satisfied the rational Match of vehicle the quiet rigidity of pneumatic spring.When vehicle dynamic load increase at the volley, upper mounting plate 2 moves down at the effect lower compression air bag 1 of dynamic load, simultaneously compression helical spring 4; Along with upper mounting plate 2 moves down under the effect of dynamic load; The elastic anchorage force of helical spring 4 can increase thereupon, and the part dynamic load of balance vehicle body stops the inclination of vehicle body and leans forward and swing back; Reduce the side-sway of vehicle body when advancing, improve the dynamic stability and the travelling comfort of vehicle body.
The present invention is simple in structure, and is with low cost, easy for installation, and reliable performance is a kind of method that in the passive type airsuspension system, can effectively reduce the vehicle side-sway; Also can be through changing helical spring rigidity and adapting to the requirement of different automobile types with decrement.
Four, description of drawings:
Accompanying drawing 1 is a structure principle chart of the present invention.
Five, embodiment:
Embodiment of the present invention is: the quiet rigidity of this composite air spring is regulated: unclamp locking nut 9; The adjusting of turn to the right bolt 8 will promote piston 6 and in cylinder barrel 5, upwards move; Piston 6 moving up in cylinder barrel 5 just opened up greatly the volume between piston 6 bottom surfaces and cylinder barrel 5 bottoms; It has equaled to reduce the equivalent volume that holds gas in the air bag 1, thereby has heightened the quiet rigidity of pneumatic spring.Otherwise; Turn left will make adjusting bolt 8 move down; Piston 6 since in the air bag 1 effect of gas pressure in cylinder barrel 5, move down thereupon, reduced the volume between piston 6 bottom surfaces and cylinder barrel 5 bottoms, also just increased hold in the air bag 1 gas the equivalent volume; Thereby reached the purpose of turning down pneumatic spring, satisfied the rational Match of vehicle the quiet rigidity of pneumatic spring.The dynamic stiffness compensation of this composite air spring: when vehicle dynamic load increase at the volley, upper mounting plate 2 moves down at the effect lower compression air bag 1 of dynamic load, simultaneously compression helical spring 4; Along with upper mounting plate 2 moves down under the effect of dynamic load; The elastic anchorage force of helical spring 4 can increase thereupon, and the part dynamic load of balance vehicle body stops the inclination of vehicle body and leans forward and swing back; Reduce the side-sway of vehicle body when advancing, improve the dynamic stability and the travelling comfort of vehicle body.
Claims (5)
1. the composite air spring of built-in helical spring and volume adjustment combination is by air bag (1), upper mounting plate (2), go up locating stud (3), helical spring (4), cylinder sleeve (5), piston (6), lower installation board (7), regulate bolt (8) and locking nut (9) combines; It is characterized in that: go up the central position that locating stud (3) is fixed on upper mounting plate (2) inner plane; Cylinder sleeve (5) is fixed on the central position of lower installation board (7) inner plane; The top of helical spring (4) is enclosed within on the locating stud (3), and the bottom is enclosed within on the cylinder sleeve (5), and piston (6) is contained in cylinder sleeve (5) lining; Regulate bolt (8) and be contained on the lower installation board (7), its top heads on the lower plane of piston (6); The quiet rigidity regulating method of this composite air spring is: unclamp locking nut (9); The adjusting bolt of turn to the right (8) will promote piston (6) and in cylinder barrel (5), upwards move; Piston (6) moving up in cylinder barrel (5) just opened up greatly the volume between piston (6) bottom surface and cylinder barrel (5) bottom; It has equaled to reduce in the air bag (1) and has held the equivalent volume of gas, thereby has heightened the quiet rigidity of pneumatic spring; Otherwise; Turn left will make adjusting bolt (8) move down; Piston (6) is owing to the effect of the interior gas pressure of air bag (1) moves down in cylinder barrel (5) thereupon; Reduced piston (6) bottom surface and cylinder barrel (5) bottom between volume, increased hold in the air bag (1) gas the equivalent volume, turned down the quiet rigidity of pneumatic spring; The compensation of the dynamic stiffness of pneumatic spring: increase along with the motion of vehicle has the inertia dynamic load, upper mounting plate (2) moves down at the effect lower compression air bag (1) of dynamic load, simultaneously compression helical spring (4); Along with upper mounting plate (2) moves down under the effect of dynamic load; The elastic anchorage force of helical spring (4) can increase thereupon, and the part dynamic load of balance vehicle body stops the inclination of vehicle body and leans forward and swing back; Reduce the side-sway of vehicle body when advancing, improve the dynamic stability and the travelling comfort of vehicle body.
2. the composite air spring of a kind of built-in helical spring according to claim 1 and volume adjustment combination is characterized in that: the rigidity of helical spring (4) can change according to the different demands of different automobile types to its air spring rigidity change curve.
3. the composite air spring of a kind of built-in helical spring according to claim 1 and volume adjustment combination is characterized in that: the height of helical spring (4) can change according to the different demands of different automobile types to its air spring rigidity change curve with the precompressed amount.
4. the composite air spring of a kind of built-in helical spring according to claim 1 and volume adjustment combination is characterized in that: upper mounting plate (2) and radial location pin (3) are combined into one.
5. the composite air spring of a kind of built-in helical spring according to claim 1 and volume adjustment combination is characterized in that: the spiral shell of regulating bolt (8) is left-handed to changing into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101683721A CN102401076A (en) | 2011-06-22 | 2011-06-22 | Compound air spring combining internal spiral spring with volume adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101683721A CN102401076A (en) | 2011-06-22 | 2011-06-22 | Compound air spring combining internal spiral spring with volume adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401076A true CN102401076A (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101683721A Pending CN102401076A (en) | 2011-06-22 | 2011-06-22 | Compound air spring combining internal spiral spring with volume adjustment |
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| Country | Link |
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| CN (1) | CN102401076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838073A (en) * | 2022-05-22 | 2022-08-02 | 南京善工信机械有限公司 | Spring device with continuously adjustable spring characteristic |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1015156A1 (en) * | 1981-06-22 | 1983-04-30 | Всесоюзный научно-исследовательский институт охраны труда и техники безопасности черной металлургии | Vibration insulation apparatus |
| SU1236226A2 (en) * | 1983-01-24 | 1986-06-07 | Всесоюзный научно-исследовательский институт охраны труда и техники безопасности черной металлургии | Vibration isolation device |
| US4844428A (en) * | 1987-03-31 | 1989-07-04 | Aisin Seiki Kabushiki Kaisha | Air spring assembly |
| CN201096162Y (en) * | 2007-10-22 | 2008-08-06 | 宁波美亚达汽车部件制造有限公司 | Rubber air spring for cars |
| CN201215153Y (en) * | 2008-06-20 | 2009-04-01 | 郑州宇通客车股份有限公司 | Output force adjustable air spring |
| CN102032309A (en) * | 2010-11-19 | 2011-04-27 | 江苏大学 | volume variable additional air chamber of air spring |
-
2011
- 2011-06-22 CN CN2011101683721A patent/CN102401076A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1015156A1 (en) * | 1981-06-22 | 1983-04-30 | Всесоюзный научно-исследовательский институт охраны труда и техники безопасности черной металлургии | Vibration insulation apparatus |
| SU1236226A2 (en) * | 1983-01-24 | 1986-06-07 | Всесоюзный научно-исследовательский институт охраны труда и техники безопасности черной металлургии | Vibration isolation device |
| US4844428A (en) * | 1987-03-31 | 1989-07-04 | Aisin Seiki Kabushiki Kaisha | Air spring assembly |
| CN201096162Y (en) * | 2007-10-22 | 2008-08-06 | 宁波美亚达汽车部件制造有限公司 | Rubber air spring for cars |
| CN201215153Y (en) * | 2008-06-20 | 2009-04-01 | 郑州宇通客车股份有限公司 | Output force adjustable air spring |
| CN102032309A (en) * | 2010-11-19 | 2011-04-27 | 江苏大学 | volume variable additional air chamber of air spring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838073A (en) * | 2022-05-22 | 2022-08-02 | 南京善工信机械有限公司 | Spring device with continuously adjustable spring characteristic |
| CN114838073B (en) * | 2022-05-22 | 2023-02-28 | 南京善工信机械有限公司 | Spring device with continuously adjustable spring characteristic |
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Application publication date: 20120404 |