CN104832582A - Composite air spring - Google Patents
Composite air spring Download PDFInfo
- Publication number
- CN104832582A CN104832582A CN201510121949.1A CN201510121949A CN104832582A CN 104832582 A CN104832582 A CN 104832582A CN 201510121949 A CN201510121949 A CN 201510121949A CN 104832582 A CN104832582 A CN 104832582A
- Authority
- CN
- China
- Prior art keywords
- gasbag
- connecting plate
- described upper
- floating piston
- airbag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0409—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the wall structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a composite air spring, and relates to the field of mechanical manufacturing. The composite air spring comprises an upper airbag, a lower airbag and a floating piston, all of which are arranged between an upper connecting plate and a lower connecting plate. The upper edge of the upper airbag is connected with the upper connecting plate, and the lower edge of the upper airbag is connected with the upper end face of the floating piston. The upper edge of the lower airbag is connected with the lower end face of the floating piston, and the lower edge of the lower airbag is connected with the lower connecting plate. The lower end face of the floating piston is equipped with a piston rod penetrating through the lower connecting plate. The piston rod in the lower airbag is sleeved with a compression spring. The upper connecting plate is provided with a one-way valve and a discharge pipe. The upper airbag provided with filler inside. By adopting the composite air spring of the invention, the problem that the comfort of passengers and safe driving of drivers are affected as the air spring has low anti-roll stiffness and the dynamic stiffness fails to be compensated effectively under the action of inertia dynamic load in the prior art is solved.
Description
Technical field
The present invention relates to machinery manufacturing technology field, especially a kind of composite air spring for vehicle air suspension.
Background technique
Air spring is a kind of accessory that can play support, buffering, braking, the highly function such as adjustment and angle adjustment, is widely used in the fields such as medical equipment, automobile, furniture, Weaving device, machine-building.At present for the spring element of vibration isolation and buffering, majority is Compress Spring, usually its rigidity is constant, although traditional air spring spring rate can change, but its often compress time rigidity increase gradually, during stretching, rigidity but reduces gradually, so just can not meet the requirement of many suspending apparatus or vibration damping equipment.
In order to improve ride of vehicle, improve the travelling comfort taken, alleviate the damage of vehicle to road and goods, developed country have employed air spring widely in the suspension system of its carrier vehicle.China is also wideling popularize and mandatory employing air spring in recent years.In the gas spring technology of development, in order to improve the stiffness tuning characteristic of air spring further, be more suitable for the change of car load in order to it, people have carried out deep exploration.In the passive type airsuspension system generally used at present, because the anti-roll stiffness of air spring is lower, when inertia Under Dynamic Load, its dynamic stiffness fails effectively to be compensated, result in vehicle and be in operation side-sway phenomenon relatively seriously, seriously affect the travelling comfort of occupant and the safe driving of driver.
Summary of the invention
The object of this invention is to provide a kind of low cost, simple and reliable, can effectively regulate air spring static stiffness, air spring dynamic rate can be compensated fast, improve vehicle anti-roll capability, reduce the composite air spring of vehicle side-sway, the anti-roll stiffness of air spring that it can solve prior art is low, and when inertia Under Dynamic Load, its dynamic stiffness fails effectively to be compensated the problem affecting the travelling comfort of occupant and the safe driving of driver.
In order to solve the problem, the technical solution used in the present invention is: this composite air spring, comprises upper junction plate and lower connecting plate; Be provided with upper gasbag and lower gasbag between described upper junction plate and described lower connecting plate, between described upper gasbag and described lower gasbag, be provided with floating piston; The top edge of described upper gasbag is fixedly connected with described upper junction plate, the lower limb of described upper gasbag is fixedly connected with the upper-end surface of described floating piston thus forms upper gas chamber; The top edge of described lower gasbag is fixedly connected with the lower end surface of described floating piston, the lower limb of described lower gasbag is fixedly connected with described lower connecting plate thus forms lower air chamber; Described floating piston lower end surface is provided with the piston rod passing described lower connecting plate, and the described upper cover of piston rod in described lower air chamber is equipped with lower Compress Spring; Described upper junction plate offers the one-way valve and object-discharging pipe gate valve that are communicated with described upper gas chamber, in described upper gas chamber, be filled with packing.
In technique scheme, more specifically scheme is: described upper gasbag and lower gasbag are made up of elastic material, and the independent rigidity of described upper gas chamber and lower air chamber is changed by variable cross section, different volumes and different inflation pressure; To be filled with in air bag by one-way valve, object-discharging pipe gate valve or to discharge as calculated or experiment determine reduce the packing of volume or increase the equivalent volume holding gas in air bag, thus regulating the Static stiffness of pneumatic spring.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, structure of the present invention is simple, and with low cost, easy for installation, air spring independent compared to existing technology has good spring rate performance, and namely air spring in parallel moves in both direction, can produce larger elastic force, and spring rate also increases gradually; By designing the independent rigidity of different upper gasbags and lower gasbag, multiple different variable integral rigidity can be obtained or determine that the packing of volume reduces or increases the equivalent volume holding gas in air bag by being filled with as calculated in air bag or testing, thus regulate the Static stiffness of pneumatic spring.
2, the present invention by arranging the mode of Compress Spring or increase packing in two air bags in parallel, strengthen support or the cushioning effect of double bolloon spring, moment impact load can be cushioned, have that elasticity is high, bearing capacity be large, compact structure, the advantage such as durable, needing there is good application prospect in the large vehicle that work loads is large, the time is long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Number in the figure is expressed as: 1, one-way valve; 2, object-discharging pipe gate valve; 3, upper junction plate; 4, upper gasbag; 5, floating piston; 6, lower gasbag; 7, lower air chamber; 8, upper gas chamber; 9, piston rod; 10, lower connecting plate; 11, Compress Spring; 12, packing.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
The composite air spring of Fig. 1, comprises upper junction plate 3 and lower connecting plate 10; Be provided with upper gasbag 4 and lower gasbag 6 between upper junction plate 3 and lower connecting plate 10, between upper gasbag 4 and lower gasbag 6, be provided with floating piston 5; The top edge of upper gasbag 4 is fixedly connected with upper junction plate 3, the lower limb of upper gasbag 4 is fixedly connected with the upper-end surface of floating piston 5 thus forms upper gas chamber 8; The top edge of lower gasbag 6 is fixedly connected with the lower end surface of floating piston 5, the lower limb of lower gasbag 6 is fixedly connected with lower connecting plate 10 thus forms lower air chamber 7; Floating piston 5 lower end surface is provided with the piston rod 9 passing lower connecting plate 10, and the piston rod 9 in lower air chamber 7 is set with lower Compress Spring 11; Upper junction plate 3 offers the one-way valve 1 and object-discharging pipe gate valve 2 that are communicated with upper gas chamber 8, in upper gas chamber 8, be filled with packing 12.Upper gasbag 4 and lower gasbag 6 are made up of elastic material, and the independent rigidity of upper gas chamber 8 and lower air chamber 7 is changed by variable cross section, different volumes and different inflation pressure; Or be filled with or discharge by one-way valve 1, object-discharging pipe gate valve 2 as calculated in air bag 4 or experiment determines that the packing 12 of volume reduces or increase the equivalent volume holding gas in air bag 4, thus the Static stiffness of adjustment pneumatic spring.The elastic force of the Compress Spring in lower air chamber 7 also can be selected according to the different-stiffness demand of shock insulation and buffering, thus can adapt to shock insulation and the buffer requirement of different occasion.
Claims (2)
1. a composite air spring, is characterized in that: comprise upper junction plate (3) and lower connecting plate (10); Be provided with upper gasbag (4) and lower gasbag (6) between described upper junction plate (3) and described lower connecting plate (10), between described upper gasbag (4) and described lower gasbag (6), be provided with floating piston (5); The top edge of described upper gasbag (4) is fixedly connected with described upper junction plate (3), the lower limb of described upper gasbag (4) is fixedly connected with the upper-end surface of described floating piston (5) thus forms upper gas chamber (8); The top edge of described lower gasbag (6) is fixedly connected with the lower end surface of described floating piston (5), the lower limb of described lower gasbag (6) is fixedly connected with described lower connecting plate (10) thus forms lower air chamber (7); Described floating piston (5) lower end surface is provided with the piston rod (9) passing described lower connecting plate (10), and the described piston rod (9) in described lower air chamber (7) is set with lower Compress Spring (11); Described upper junction plate (3) offers the one-way valve (1) and object-discharging pipe gate valve (2) that are communicated with described upper gas chamber (8), in described upper gas chamber (8), be filled with packing (12).
2. composite air spring according to claim 1, it is characterized in that: described upper gasbag (4) and lower gasbag (6) are made up of elastic material, the independent rigidity of described upper gas chamber (8) and lower air chamber (7) is changed by variable cross section, different volumes and different inflation pressure; Or be filled with or discharge by one-way valve (1), object-discharging pipe gate valve (2) as calculated in air bag (4) or experiment determines that the packing (12) of volume reduces or increases the equivalent volume holding gas in air bag (4), thus regulate the Static stiffness of pneumatic spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121949.1A CN104832582A (en) | 2015-03-19 | 2015-03-19 | Composite air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121949.1A CN104832582A (en) | 2015-03-19 | 2015-03-19 | Composite air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104832582A true CN104832582A (en) | 2015-08-12 |
Family
ID=53810682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510121949.1A Pending CN104832582A (en) | 2015-03-19 | 2015-03-19 | Composite air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104832582A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167507A (en) * | 2017-12-08 | 2018-06-15 | 北京航天计量测试技术研究所 | A kind of high pressure micro-positioning regulators valve based on air spring |
| CN111255842A (en) * | 2020-01-22 | 2020-06-09 | 苏广庆 | Air damping compression power generation device for motor vehicle |
| CN114396448A (en) * | 2022-01-20 | 2022-04-26 | 重庆理工大学 | Air spring and height and rigidity decoupling method thereof |
| CN114483215A (en) * | 2022-02-09 | 2022-05-13 | 杭州汽轮机股份有限公司 | Emergency steam turbine generator unit for nuclear power station |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111735A (en) * | 1990-10-30 | 1992-05-12 | Beloit Corporation | Air spring with quick release valve |
| DE10236621B4 (en) * | 2002-08-09 | 2005-02-03 | Daimlerchrysler Ag | Air suspension system of a McPherson strut |
| CN2811664Y (en) * | 2005-07-14 | 2006-08-30 | 湖南大学 | Air bag device in air suspension |
| CN101718327A (en) * | 2009-11-26 | 2010-06-02 | 重庆师范大学 | Precise vibration isolation system |
| CN201513514U (en) * | 2009-10-30 | 2010-06-23 | 南京理工大学 | Double-cylinder magneto-rheological impact buffer |
| CN202251614U (en) * | 2011-07-24 | 2012-05-30 | 杨洁 | Air spring capable of adjusting static and dynamic stiffness through punching liquid and diaphragm hole with impact reduction function |
| CN103644234A (en) * | 2013-12-17 | 2014-03-19 | 吉林大学 | Parallel air spring |
-
2015
- 2015-03-19 CN CN201510121949.1A patent/CN104832582A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111735A (en) * | 1990-10-30 | 1992-05-12 | Beloit Corporation | Air spring with quick release valve |
| DE10236621B4 (en) * | 2002-08-09 | 2005-02-03 | Daimlerchrysler Ag | Air suspension system of a McPherson strut |
| CN2811664Y (en) * | 2005-07-14 | 2006-08-30 | 湖南大学 | Air bag device in air suspension |
| CN201513514U (en) * | 2009-10-30 | 2010-06-23 | 南京理工大学 | Double-cylinder magneto-rheological impact buffer |
| CN101718327A (en) * | 2009-11-26 | 2010-06-02 | 重庆师范大学 | Precise vibration isolation system |
| CN202251614U (en) * | 2011-07-24 | 2012-05-30 | 杨洁 | Air spring capable of adjusting static and dynamic stiffness through punching liquid and diaphragm hole with impact reduction function |
| CN103644234A (en) * | 2013-12-17 | 2014-03-19 | 吉林大学 | Parallel air spring |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167507A (en) * | 2017-12-08 | 2018-06-15 | 北京航天计量测试技术研究所 | A kind of high pressure micro-positioning regulators valve based on air spring |
| CN108167507B (en) * | 2017-12-08 | 2020-02-21 | 北京航天计量测试技术研究所 | High-pressure micro-adjusting valve based on air spring |
| CN111255842A (en) * | 2020-01-22 | 2020-06-09 | 苏广庆 | Air damping compression power generation device for motor vehicle |
| CN114396448A (en) * | 2022-01-20 | 2022-04-26 | 重庆理工大学 | Air spring and height and rigidity decoupling method thereof |
| CN114396448B (en) * | 2022-01-20 | 2024-02-23 | 重庆理工大学 | Air spring and decoupling method for height and rigidity of air spring |
| CN114483215A (en) * | 2022-02-09 | 2022-05-13 | 杭州汽轮机股份有限公司 | Emergency steam turbine generator unit for nuclear power station |
| CN114483215B (en) * | 2022-02-09 | 2024-04-12 | 杭州汽轮动力集团股份有限公司 | Emergency turbo generator set for nuclear power station |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |
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| WD01 | Invention patent application deemed withdrawn after publication |