CN102834640B - Air spring - Google Patents
Air spring Download PDFInfo
- Publication number
- CN102834640B CN102834640B CN201180018349.2A CN201180018349A CN102834640B CN 102834640 B CN102834640 B CN 102834640B CN 201180018349 A CN201180018349 A CN 201180018349A CN 102834640 B CN102834640 B CN 102834640B
- Authority
- CN
- China
- Prior art keywords
- spring
- air
- piston
- level
- outer guide
- 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.)
- Expired - Fee Related
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000013536 elastomeric material Substances 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 239000000725 suspension Substances 0.000 claims abstract description 3
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 5
- 230000004323 axial length Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
-
- 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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
- F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
-
- 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
- F16F9/05—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 the flexible wall being of the rolling diaphragm type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to an air spring, in particular for spring wheel suspensions of motor vehicle chassis, comprising a cylindrical air spring rolling lobe (10), which connects an air spring piston (8) to an air spring cover (4) to form a tight air chamber (12) and which is made of an elastomeric material and which rolls with the outer jacket surface of the rolling lobe on the air spring piston (8) on the air spring piston side and on an outer guide (14) on the air spring cover side in order to change the air chamber volume between a level with the air spring piston (8) retracted and a level with the air spring piston (8) extended and which forms a rolling fold, wherein the outer guide (14) has an elastomer hose (16) having a reinforcing insert. The outer guide (14) comprises a spiral spring that is integrated into the elastomer hose (16) and that can be loaded in tension when the air spring piston is retracted, and the spiral spring is connected to the air spring cover (4) and to the air spring bottom (6), wherein the axial length of the outer guide (14) can be varied according to the spring motion of the air spring (2).
Description
Technical field
The present invention relates to a kind of pneumatic spring, this pneumatic spring is particularly useful for the elastic wheel suspension of motor-driven vehicle going mechanism, this pneumatic spring has the air-spring bellows/ripple air bag of the cylindricality be made up of elastomeric material, this air-spring bellows is connected to air-spring piston and pneumatic spring lid to form the air chamber of sealing, to change between level when the level of air chamber volume when air-spring piston is retracted and air-spring piston are stretched out and when forming sliding roll wave line (Rollfalte), the outer surface of this air-spring bellows rolls in air-spring piston side/slides and rolls on air-spring piston, and roll on an outer guide portion in pneumatic spring lid side/slide and roll, wherein this outer guide portion has the elastomeric hose with reinforcing liner.
Background technique
Air-spring bellows must absorb the axis and radial force that are caused by internal pressure.Therefore insert fabric layer for the independently pneumatic spring without outer guide portion, the outside body material of guide portion in---such as elastomeric material---, described fabric layer is angled relative to each other.This angle is more flat, then the radial force that air-spring bellows Absorbable rod is more.For the pneumatic spring directed in outside, can the axial filament layer of ta-king up axial forces be only preferred.Now radial force is absorbed by an outer guide portion, and wherein in axial long filament air bag, the filament movement of body material inside is obviously less, therefore significantly reduces produced vehicle vertical vibration (Harshness).
A kind of pneumatic spring of aforementioned type is there is known by DE10323332.The shortcoming of this pneumatic spring is, in order to the axial deformation of outer guide portion in the region of construction layer, must spend extra merit/work in retraction process, this is because the region of outer guide portion must by axial compression.Because reinforce liner not contribute pulling force removal, so must arrange rebound damping spring for this purpose, this rebound damping spring is arranged in vibration damper usually.
Summary of the invention
Therefore, the object of the invention is to, provide a kind of pneumatic spring, in this pneumatic spring, the merit/work that must be applied in retraction process on outer guide portion is reduced to minimum, and achieves the better simply pneumatic spring of structure.
To this, in pneumatic spring according to the present invention, outer guide portion comprises and is built in elastomeric hose, can be loaded pressure when air-spring piston is retracted helical spring, and outer guide portion was both also connected with bottom pneumatic spring with pneumatic spring lid, wherein, the axial arrangement length of outer guide portion can change corresponding to the spring movement of pneumatic spring.Advantageously achieved by this design of pneumatic spring, decrease as making outer guide portion axial deformation and merit that will apply in the region of construction layer, and simplify the structure by saving general rebound damping spring simultaneously.
In a kind of expedients scheme of pneumatic spring according to the present invention, helical spring and elastomeric hose are all when prestressing in integrated guide portion outside, wherein so select the prestressing of helical spring prestressing and resilient stiff (Federrate) or spring rate and elastomeric hose and resilient stiff or spring rate, make the resilient stiff of helical spring and elastomeric hose one be in air-spring piston retract time level and air-spring piston stretch out time level between, standard level with regard to outer guide portion is cancelled (aufheben), significantly improve the response characteristic of the total spring formed by elastomeric hose and helical spring thus.
In another expedients scheme of pneumatic spring according to the present invention, the helical spring prestressing of selection like this, helical spring in the retraction level of air-spring piston is made to be loaded pressure, be loaded pulling force at the helical spring in level that stretches out of air-spring piston, and helical spring is loaded pressure in the standard level of air-spring piston; And so select the prestressing of elastomeric hose, make at the horizontal elastomer flexible pipe of the retraction of air-spring piston not by prestressing, be loaded pulling force at the horizontal elastomer flexible pipe that stretches out of air-spring piston, and be loaded pulling force at the standard level elastomer flexible pipe of air-spring piston.This design proposal advantageously causes reducing external guide portion institute work in retraction process further.
In another favourable design proposal of pneumatic spring according to the present invention, elastomeric hose forms elastomer matrix, this elastomer matrix forms the smooth surface being used for rolling for air-spring bellows, therefore extended the working life of air-spring bellows, this is because reduce the mechanical load in springing process.
In another favourable design proposal of pneumatic spring according to the present invention, air-spring bellows has axial long filament enhanced portion.Because from the angle of vehicle vertical vibration, it is best that the pure axial long filament of air-spring bellows strengthens, so according to the advantage of outer guide portion of the present invention be, achieves this design of air-spring bellows.
Accompanying drawing explanation
With reference to the accompanying drawings embodiments of the invention are described now.Accompanying drawing illustrates:
Fig. 1 schematically show be under elongation state according to pneumatic spring of the present invention;
Fig. 2 schematically shows and is in air-spring bellows under elongation state and outer guide portion, wherein eliminates the remaining part of pneumatic spring;
Fig. 3 illustrate be under retracted mode according to pneumatic spring of the present invention;
Fig. 4 illustrates and is in air-spring bellows under retracted mode and outer guide portion.
Embodiment
Fig. 1 schematically shows the critical piece of pneumatic spring 2, and this pneumatic spring to have bottom pneumatic spring lid 4 and pneumatic spring 6, and when pneumatic spring 2 is for Motor Vehicle, bottom this pneumatic spring, 6 are connected with the vehicle body of Motor Vehicle.Air-spring piston 8 to be bearing in bottom pneumatic spring on 6, and this air-spring piston 8 and air-spring bellows/ripple air bag 10 together form the air chamber 12 of variable volume.
Air-spring bellows 10 1 aspect is fixed on pneumatic spring lid 4, and is fixed on the inner end of air-spring piston 8 on the other hand.Air-spring bellows 10 is supported by outer guide portion 14 radially outwardly.
Outer guide portion 14 comprises elastomeric hose 16 as body material and the helical spring 18 that is built in elastomeric hose 16.The outer guide portion 14 be made up of elastomeric hose 16 and built-in helical spring 18 both also 6 to be connected with bottom pneumatic spring with pneumatic spring lid 4.
Helical spring 18 and elastomeric hose are all when prestressing in integrated guide portion outside 14, wherein so select the prestressing of helical spring 18 and the prestressing of resilient stiff and elastomeric hose 16 and resilient stiff, make standard level between the level of the resilient stiff of helical spring 18 and elastomeric hose 16 when the level in time being in air-spring piston and retracting and air-spring piston are stretched out, outer guide portion 14 is cancelled.The prestressing of helical spring 18 is so selected at this, helical spring in the retraction level of air-spring piston 8 is made to be loaded pressure, be loaded pulling force at the helical spring in level that stretches out of air-spring piston 8, and helical spring is loaded pressure in the standard level of air-spring piston 8.In addition, the prestressing of selection elastomeric hose 16 like this, make at the horizontal elastomer flexible pipe 16 of the retraction of air-spring piston 8 not by prestressing, be loaded pulling force at the horizontal elastomer flexible pipe that stretches out of air-spring piston 8, and be loaded pulling force at the standard level elastomer flexible pipe of air-spring piston 8.
Helical spring 18 is the thin helical springs formed by the metal or plastics with low spring rate, and elastomeric hose 16 is formed by thin elastomer matrix, and therefore elastomeric hose 16 correspondingly can be coordinated mutually with the value of the spring rate of helical spring 18/mate.
Because elastomeric hose 16 is designed to elastomer matrix, so rolling/cunning that elastomeric hose 16 is above within it air-spring bellows 10 is rolled provide smooth surface.
In the indicative icon of Fig. 2, obviously can see the helical spring 18 in elastomeric hose 16.Air-spring bellows 10 has pure axial filament structure, but this is not shown overlooking of Fig. 2.
Fig. 3 and 4 illustrate when the retracted mode of pneumatic spring 2 according to the pneumatic spring 2 of Fig. 1 or the indicative icon according to Fig. 2.Can be found out by the comparison of Fig. 1 and Fig. 3, the axial arrangement length of outer guide portion 14 can with pneumatic spring 2 or the spring movement of air-spring piston 8 change accordingly.The axial arrangement length of outer guide portion 14 is obviously greater than in figure 3 in FIG, and length difference is absorbed jointly by elastomeric hose 16 and helical spring 18.
When pneumatic spring 2 is retracted, the distance of each circle spiral of helical spring 18 moves towards one another more closely, and the elastomeric material be in therebetween is correspondingly compacted.Distance between each circle spiral of helical spring 18 increases when extending, and the elastomeric material of elastomeric hose 16 extends.By selecting the elastic constants of the bi-material of outer guide portion 14 can the axial arrangement length of for a change outer guide portion and the power spent is reduced to minimum.
Reference numerals list:
2 pneumatic springs
4 pneumatic spring lids
Bottom 6 pneumatic springs
8 air-spring pistons
10 air-spring bellows
12 air chambers
14 outer guide portions
16 elastomeric hose
18 helical springs
Claims (4)
1. a pneumatic spring, described pneumatic spring is particularly useful for the elastic wheel suspension of motor-driven vehicle going mechanism, described pneumatic spring has the air-spring bellows (10) of the cylindricality be made up of elastomeric material, described air-spring bellows (10) connection air-spring piston (8) and pneumatic spring lid (4) are to form the air chamber (12) of sealing, when changing between the level when level when air-spring piston (8) is retracted of the volume of air chamber and air-spring piston (8) are stretched out and when forming sliding roll wave line, the outer surface of described air-spring bellows (10) rolls upper cunning of described air-spring piston (8) in air-spring piston side, and roll upper cunning of an outer guide portion (14) in pneumatic spring lid side, wherein, described outer guide portion (14) has the elastomeric hose (16) with reinforcing liner, it is characterized in that,
Described outer guide portion (14) comprises and is built in helical spring in described elastomeric hose (16), can be loaded pressure when air-spring piston is retracted,
Described outer guide portion (14) was both also connected with (6) bottom described pneumatic spring with described pneumatic spring lid (4), wherein, the axial arrangement length of described outer guide portion (14) can change corresponding to the spring movement of described pneumatic spring (2), wherein, described helical spring (18) and described elastomeric hose (16) are integrated in described outer guide portion (14) when prestressing;
Wherein, the prestressing of the prestressing of the described helical spring of selection like this (18) and spring rate and described elastomeric hose (16) and spring rate, make natural level between the level of the spring rate of described helical spring (18) and described elastomeric hose (16) when the level in time being in air-spring piston (8) and retracting and air-spring piston (8) are stretched out, described outer guide portion (14) is cancelled.
2. pneumatic spring according to claim 1, it is characterized in that, the prestressing of the described helical spring of selection like this (18), helical spring described in the retraction level of air-spring piston (8) is made to be loaded pressure, be loaded pulling force at the helical spring described in level that stretches out of air-spring piston (8), and described in natural level in air-spring piston (8), helical spring is loaded pressure; And
The prestressing of the described elastomeric hose of selection like this (16), to make described in the retraction level of air-spring piston (8) elastomeric hose (16) not by prestressing, be loaded pulling force in the elastomeric hose described in level of stretching out of air-spring piston (8), and described in natural level in air-spring piston (8), elastomeric hose is loaded pulling force.
3. pneumatic spring according to claim 1 and 2, is characterized in that, described elastomeric hose (16) forms elastomer matrix, and described elastomer matrix is formed and is used for the sliding smooth surface rolled of described air-spring bellows (10).
4. pneumatic spring according to claim 1 and 2, is characterized in that, described air-spring bellows (10) has axial long filament enhanced portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010014559A DE102010014559A1 (en) | 2010-04-10 | 2010-04-10 | air spring |
| DE102010014559.9 | 2010-04-10 | ||
| PCT/EP2011/001376 WO2011124325A2 (en) | 2010-04-10 | 2011-03-10 | Air spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102834640A CN102834640A (en) | 2012-12-19 |
| CN102834640B true CN102834640B (en) | 2015-03-11 |
Family
ID=44041578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180018349.2A Expired - Fee Related CN102834640B (en) | 2010-04-10 | 2011-03-10 | Air spring |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2558743A2 (en) |
| KR (1) | KR20130006688A (en) |
| CN (1) | CN102834640B (en) |
| DE (1) | DE102010014559A1 (en) |
| WO (1) | WO2011124325A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016182298A1 (en) * | 2015-05-12 | 2016-11-17 | 삼성전자 주식회사 | Method and device for encoding or decoding image by using blocks determined by means of adaptive order |
| CN105156579B (en) * | 2015-09-01 | 2017-04-26 | 上海交通大学 | Vibration damping and impact resisting hydraulic cylinder and impact resisting method thereof |
| US10525785B2 (en) | 2016-09-22 | 2020-01-07 | Beijingwest Industries Co., Ltd. | Air suspension assembly |
| DE102018207076B4 (en) * | 2018-05-07 | 2022-02-24 | Audi Ag | Air spring, in particular for a vehicle, vehicle with at least one such air spring and method for operating such an air spring |
| DE102022210872A1 (en) | 2022-10-13 | 2024-04-18 | Continental Automotive Technologies GmbH | Air suspension system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049145B2 (en) * | 1980-01-26 | 1985-10-31 | 日本電気硝子株式会社 | Method for manufacturing crystallized glass |
| GB2333576A (en) * | 1998-01-21 | 1999-07-28 | Rover Group | An air spring for a motor vehicle |
| EP1596093A1 (en) * | 2004-05-13 | 2005-11-16 | Vibracoustic GmbH & Co. KG | Air spring assembly |
| CN100455454C (en) * | 2002-08-07 | 2009-01-28 | Bfs多样产品有限责任公司 | Vehicle suspension system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2878012A (en) * | 1954-07-15 | 1959-03-17 | Rockwell Standard Co | Bellows damper |
| FR2507516A1 (en) * | 1981-06-16 | 1982-12-17 | Fiz Tekhn I Ak | METHOD FOR ELECTROEROSION MACHINING OF ELECTRICALLY CONDUCTIVE MATERIALS AND DEVICE FOR IMPLEMENTING SAME |
| JPS5843813A (en) * | 1981-09-09 | 1983-03-14 | Yamaha Motor Co Ltd | Bumper of vehicle |
| JPS6049145A (en) * | 1983-08-25 | 1985-03-18 | Kayaba Ind Co Ltd | Suspension spring of hydraulic shock absorber |
| JPS62155345A (en) * | 1985-12-26 | 1987-07-10 | Daihatsu Motor Co Ltd | Suspension |
| US4741517A (en) * | 1986-09-24 | 1988-05-03 | The Goodyear Tire & Rubber Company | Air spring with extensible fabric restraining cylinder |
| US6511057B1 (en) * | 1998-12-03 | 2003-01-28 | Phoenix Aktiengesellschaft | Pneumatic suspension system |
| WO2001084010A1 (en) * | 2000-05-02 | 2001-11-08 | Phoenix Ag | External guide from fiber-reinforced plastic for use in a pneumatic spring system |
| JP2004156663A (en) * | 2002-11-05 | 2004-06-03 | Bridgestone Corp | Air spring |
| DE10323332A1 (en) | 2003-05-23 | 2004-12-09 | Bayerische Motoren Werke Ag | Pneumatic spring for spring-mounted wheel suspensions of motor vehicle chassis frame, comprises a flexible guide cylinder which is preferably an elastomer hose |
| US20060208402A1 (en) * | 2005-03-21 | 2006-09-21 | Arvinmeritor Technology, Llc | Air spring protector |
| DE102005026314C5 (en) * | 2005-06-07 | 2008-09-25 | Lkh-Kunststoffwerk Gmbh & Co. Kg | Plastic plunger for an air spring |
| DE102006046560A1 (en) * | 2006-09-30 | 2008-04-03 | Bayerische Motoren Werke Ag | Air spring, in particular for the chassis of a vehicle |
-
2010
- 2010-04-10 DE DE102010014559A patent/DE102010014559A1/en not_active Withdrawn
-
2011
- 2011-03-10 CN CN201180018349.2A patent/CN102834640B/en not_active Expired - Fee Related
- 2011-03-10 KR KR1020127029357A patent/KR20130006688A/en not_active Application Discontinuation
- 2011-03-10 EP EP11710432A patent/EP2558743A2/en not_active Withdrawn
- 2011-03-10 WO PCT/EP2011/001376 patent/WO2011124325A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049145B2 (en) * | 1980-01-26 | 1985-10-31 | 日本電気硝子株式会社 | Method for manufacturing crystallized glass |
| GB2333576A (en) * | 1998-01-21 | 1999-07-28 | Rover Group | An air spring for a motor vehicle |
| CN100455454C (en) * | 2002-08-07 | 2009-01-28 | Bfs多样产品有限责任公司 | Vehicle suspension system |
| EP1596093A1 (en) * | 2004-05-13 | 2005-11-16 | Vibracoustic GmbH & Co. KG | Air spring assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130006688A (en) | 2013-01-17 |
| DE102010014559A1 (en) | 2011-10-13 |
| WO2011124325A2 (en) | 2011-10-13 |
| EP2558743A2 (en) | 2013-02-20 |
| WO2011124325A3 (en) | 2013-02-28 |
| CN102834640A (en) | 2012-12-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 |