CN208703001U - A kind of air spring additional air chamber of variable volume - Google Patents
A kind of air spring additional air chamber of variable volume Download PDFInfo
- Publication number
- CN208703001U CN208703001U CN201821371575.4U CN201821371575U CN208703001U CN 208703001 U CN208703001 U CN 208703001U CN 201821371575 U CN201821371575 U CN 201821371575U CN 208703001 U CN208703001 U CN 208703001U
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- China
- Prior art keywords
- chamber
- piston
- spring
- breather valve
- air spring
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Abstract
The utility model provides a kind of air spring additional air chamber of variable volume, specifically include that connecting line, auxiliary chamber cavity, upper and lower cover plates, speciality spring, piston, inflator pump and ECU controller, inflator pump, breather valve and displacement sensor are connected with ECU controller respectively.It is equipped with piston rod in the middle position of auxiliary chamber, the surface of piston rod is cased with speciality spring, and one end of speciality spring is fixed on lower cover plate, and the other end is fixed on underpiston nut.The utility model can according to the actual working conditions, and the dischargeable capacity for participating in work to change air spring by the opening and closing of control breather valve and inflator pump improves the effectiveness in vibration suppression of air spring to change the rigidity of air spring system.
Description
Technical field
The utility model relates to a kind of air spring additional air chambers of variable volume.
Background technique
Air spring is the elastic element of airsuspension system, it realizes its elastic reaction using the compressibility of gas,
Have the function of buffering, vibration isolation.The rigidity of air spring directly affects ride of vehicle and riding comfort.
In order to make air suspension of automobile can adapt to the various complex working conditions of vehicle driving, can by add auxiliary chamber come
Change the volume of air spring, and then change the stiffness characteristics of spring, the superiority of air spring is enable to give full play to, is applicable in
Property is more extensive.
In recent years, domestic and foreign scholars carry out the air spring with auxiliary chamber by theory analysis and experimental study etc.
Numerous studies, and achieve some valuable research achievements, but the volume of the auxiliary chamber for the air spring studied
Adjustment speed is slow when cannot mostly change, or change auxiliary chamber volume, easily breaks down, and required change auxiliary chamber
Driving force it is larger, limit the performance with auxiliary chamber air spring superiority.Existing patent document be " a kind of variable volume
Constant internal pressure air-spring additional air chamber " (application number 201010549005.1) and a kind of patent " air bullet of variable volume
Auxiliary chamber is divided into eight chambers by spring auxiliary chamber " (application number 201010549434.9), and defect is: changing volume
Structure is complex, and the effect for being connected to change air spring rigidity with aperture is bad.
Utility model content
The utility model, which is directed to existing air spring additional air chamber volume, to be changed, or regulations speed during change
Slow and complicated status, provides a kind of air spring additional air chamber that the volume that can overcome disadvantages mentioned above is adjustable, leads to
Change auxiliary chamber volume is crossed, the performance of spring system is improved, the superiority of air spring is enable to give full play to.
The technical solution adopted in the utility model is: including a cylinder-shaped auxiliary chamber cavity, the upper end passes through bolt
Connect with top cover, keep the leakproofness of auxiliary chamber cavity, top cover connect with connecting line, connecting line one end pass through top cover and
The connection of dischargeable capacity chamber, the other end are connected to air spring ontology.The inside of auxiliary chamber cavity is equipped with reciprocating piston,
At the center of piston lower surface assemble piston rod, piston close to bottom cover side surface be equipped with nut and displacement sensor, nut and
Piston rod is concentric；Upper cover of piston rod has speciality spring, and one end of speciality spring is fixed on underpiston nut, and the other end is solid
It is scheduled on bottom cover.
Auxiliary chamber cavity lower end is connect by bolt with bottom cover, and bottom cover center position is provided with and piston rod cooperation
Hole, piston rod are passed through from the hole, and are sealed by piston rod seal, guarantee the gas of the auxiliary chamber cavity entirety
Close property.
Breather valve is housed, inflator pump is in below bottom cover, is connected to by pipeline with spare cavity volume, and inflator pump is logical on bottom cover
It crosses breather valve and inflation/deflation is carried out to spare cavity volume.ECU controller is connected with displacement sensor, breather valve, inflator pump respectively.
Beneficial effects of the present invention are as follows:
1, when ECU controller control breather valve is opened, speciality spring contraction, driving piston is moved to bottom cover direction, attached
Aerating room dischargeable capacity chamber constantly increases；When ECU controller, which controls breather valve and inflator pump, to be opened, inflator pump is toward spare volume
It is inflated in chamber, when the gas pressure intensity in spare cavity volume reaches certain limit, speciality spring is stretched, piston overpowers speciality bullet
The elastic potential energy of spring is moved to the direction of top cover, and auxiliary chamber dischargeable capacity chamber constantly reduces, and is come without complicated control device
Complete the process that volume changes；In addition, compared with existing adjusting auxiliary chamber device in volume, due to the chamber with column type,
Device takes up space reduction.
2, the utility model structure is simple, and manufacturing technique requirent is low, easy to maintain and effectively can reliably realize attached
The volume change of aerating room and its stabilization during volume change, are auxiliary chamber variable volume air spring system in vehicle
On application provide it is convenient.
3, the utility model does not limit to and applies on vehicle suspension system, for installing in mechanical equipment, rail vehicle
The air spring used is applicable in.
Detailed description of the invention
In order to which the structure and working principle of the utility model is more completely understood, it is described in detail with reference to the accompanying drawing.
Working state schematic representation when Fig. 1 is the dischargeable capacity chamber minimum for illustrating the utility model.
Working state schematic representation when Fig. 2 is the dischargeable capacity chamber maximum for illustrating the utility model.
In figure: 1- connecting line；2- bolt；3- top cover；4- limited block；5- dischargeable capacity chamber；6- auxiliary chamber cavity；7-
Piston；8- nut；9- displacement sensor；10- speciality spring；11- piston rod seal；The spare cavity volume of 12-；13- bottom cover；
14- breather valve；15- inflator pump；16-ECU controller；17- piston rod.
Specific embodiment
The course of work of the utility model is further described in the following with reference to the drawings and specific embodiments, but not as right
The restriction of the utility model.
A kind of air spring additional air chamber of variable volume, including auxiliary chamber cavity 6 and connecting tube 1, auxiliary chamber chamber
The top cover 3 of body 6 is connected by connecting line 1 with air spring ontology, and the other end is sealed by bottom cover 13.Auxiliary chamber cavity 6
Inside is equipped with piston 7, and 7 outer wall of piston and 6 inner wall of auxiliary chamber cavity are fitted close, auxiliary chamber cavity 6 are divided effectively to hold
Product chamber 5 and 12 two chambers of spare cavity volume, dischargeable capacity chamber 5 are the auxiliary chamber volumes of actual participation work；7 following table of piston
Displacement sensor 9 is housed, to monitor the displacement of piston 7, when dischargeable capacity chamber 5 is not big enough, piston 7 is to spare volume on face
12 side of chamber is mobile, increases the volume of dischargeable capacity chamber 5, and then determine the volume of dischargeable capacity chamber 5；7 lower surface center of piston
Piston rod 17 is assembled at place, is cased with nut 8 on piston rod 17, is bonded with the lower surface of piston 7；In 6 inner surface of auxiliary chamber cavity
Place installation limited block 4 apart from 3 certain distance h of top cover, piston face and top cover 3 when preventing piston 7 from moving to the top
Inner surface fitting.
Speciality spring 10 is cased on piston rod 17, one end of speciality spring 10 is fixed on nut 8, and the other end is fixed on bottom
On lid 13,13 center opening of bottom cover, piston rod 17 passes through piston rod seal 11 for Kong Mi after passing through in the hole of bottom cover 13
Envelope guarantees the leakproofness of auxiliary chamber entirety.Breather valve 14 is installed, inflator pump 15 passes through pipeline and spare cavity volume on bottom cover 13
12 connections, and pipeline and breather valve 14 are concentric.ECU controller 16 controls the opening and closing of breather valve 14 and inflator pump 15, spare appearance
Product chamber 12 can carry out inflation/deflation by breather valve 14 by inflator pump 15, and breather valve 14 is normally close valve.
As shown in Figure 1, the working state schematic representation when dischargeable capacity chamber 5 for the utility model is minimum, the upper table of piston 7
Face and the lower surface of limited block 4 fit, and speciality spring 10 is stretched to longest state, and elastic potential energy is maximum；When ECU controller
When 16 control breather valves 14 are opened, spare cavity volume 12 starts to deflate, and intracavitary air pressure constantly reduces, and speciality spring 10 compresses, living
Plug 7 is moved since speciality spring 10 constantly discharges elastic potential energy to the direction of bottom cover 13, and the volume of dischargeable capacity chamber 5 constantly increases
Greatly, when the volume of dischargeable capacity chamber 5 reaches perfect condition, displacement sensor 9 sends signal to ECU controller 16, at this moment leads to
Air valve 14 is closed after receiving the shutdown signal that ECU controller 16 is sent.
As shown in Fig. 2, the working state schematic representation when dischargeable capacity chamber 5 for the utility model is maximum, speciality spring 10
In natural length, elastic potential energy zero；When ECU controller 16 controls breather valve 14 and inflator pump 15 is opened, inflator pump 15
It is inflated toward spare cavity volume 12, when the gas pressure intensity in spare cavity volume 12 reaches certain limit, piston 7 overcomes speciality spring
10 elastic potential energy is mobile to the direction of top cover 3, and the volume of dischargeable capacity chamber 5 constantly reduces, when the volume of dischargeable capacity chamber 5 reaches
When to perfect condition, displacement sensor 9 sends signal to ECU controller 16, and at this moment breather valve 14 receives the hair of ECU controller 16
It is closed after the shutdown signal sent, while inflator pump 15 stops working.
Piston is opposing stationary, and the elastic potential energy of gas pressure intensity and speciality spring 10 in dischargeable capacity chamber 5 ensures that piston 7 stops
A certain position is stayed in, breather valve 14 keeps normally closed.
The above is only the preferable embodiment of the utility model, not appoints to the technical solution of the utility model
What formal limitation.All to make any simple modification to above embodiments according to the technical essence of the utility model, form becomes
Change and modify, each falls within the protection scope of the utility model.
Claims (5)
1. a kind of air spring additional air chamber of variable volume characterized by comprising connecting line (1)；Bolt (2)；Top cover
(3)；Limited block (4)；Dischargeable capacity chamber (5)；Auxiliary chamber cavity (6)；Piston (7)；Nut (8)；Displacement sensor (9)；It is special
Matter spring (10)；Piston rod seal (11)；Spare cavity volume (12)；Bottom cover (13)；Breather valve (14)；Inflator pump (15)；
ECU controller (16)；Piston rod (17)；Piston (7) are housed inside the auxiliary chamber cavity (6), piston (7) outer wall and additional
Gas chamber cavity (6) inner wall is fitted close, and auxiliary chamber cavity (6) is divided into dischargeable capacity chamber (5) and spare cavity volume (12) two
A chamber；The piston (7) close to bottom cover (13) side surface be equipped with nut (8) and displacement sensor (9), nut (8) and
Piston rod (17) is concentric；It is cased with speciality spring (10) on the piston rod (17), one end of speciality spring (10) is fixed on spiral shell
On female (8), the other end is fixed on bottom cover (13)；The auxiliary chamber dischargeable capacity chamber (5) passes through connecting line (1) and air
Spring connection；Breather valve (14) are housed on the bottom cover (13), inflator pump (15) be in the lower section of bottom cover (13), by pipeline and
Spare cavity volume (12) connection, spare cavity volume (12) carry out inflation/deflation by breather valve (14) by inflator pump (15)；It is described
ECU controller (16) is connected with displacement sensor (9), breather valve (14), inflator pump (15) respectively.
2. the air spring additional air chamber of variable volume according to claim 1, it is characterised in that: the breather valve (14)
For normally close valve, when piston (7) movement, breather valve (14) receives open signal and opens, and piston (7) is ventilated when opposing stationary
Valve (14) remains closed.
3. the air spring additional air chamber of variable volume according to claim 1, it is characterised in that: the auxiliary chamber chamber
Place installation limited block (4) of body (6) inner surface distance top cover (3) certain distance h, when preventing piston (7) from moving to the top
Surface is bonded with the inner surface of top cover (3), protects piston (7) and top cover (3).
4. the air spring additional air chamber of variable volume according to claim 1, it is characterised in that: institute's displacement sensors
(9) displacement signal of piston (7) is passed to ECU controller (16), breather valve (14) and inflator pump (15) are by ECU controller
(16) it is controlled.
5. the air spring additional air chamber of variable volume according to claim 1, it is characterised in that: the ECU controller
(16) control breather valve (14) is opened, and under the action of speciality spring (10) elastic potential energy, piston (7) is transported to bottom cover (13) direction
Dynamic, the volume of dischargeable capacity chamber (5) increases；ECU controller (16) controls breather valve (14) and opens, while driving inflator pump (15)
It is inflated to spare cavity volume (12), when the inner gas pressure intensity of spare cavity volume (12) is sufficiently large, piston (7) is square to top cover (3)
To movement, dischargeable capacity chamber (5) volume reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371575.4U CN208703001U (en) | 2018-08-24 | 2018-08-24 | A kind of air spring additional air chamber of variable volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371575.4U CN208703001U (en) | 2018-08-24 | 2018-08-24 | A kind of air spring additional air chamber of variable volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208703001U true CN208703001U (en) | 2019-04-05 |
Family
ID=65944136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821371575.4U Expired - Fee Related CN208703001U (en) | 2018-08-24 | 2018-08-24 | A kind of air spring additional air chamber of variable volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208703001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757812A (en) * | 2018-08-24 | 2018-11-06 | 海南大学 | A kind of air spring additional air chamber of variable volume |
-
2018
- 2018-08-24 CN CN201821371575.4U patent/CN208703001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757812A (en) * | 2018-08-24 | 2018-11-06 | 海南大学 | A kind of air spring additional air chamber of variable volume |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190405 Termination date: 20200824 |