CN114562532B - Self-adaptive rigidity-adjusting double-chamber air spring - Google Patents
Self-adaptive rigidity-adjusting double-chamber air spring Download PDFInfo
- Publication number
- CN114562532B CN114562532B CN202111536627.5A CN202111536627A CN114562532B CN 114562532 B CN114562532 B CN 114562532B CN 202111536627 A CN202111536627 A CN 202111536627A CN 114562532 B CN114562532 B CN 114562532B
- Authority
- CN
- China
- Prior art keywords
- spring
- air
- lifting ring
- chamber
- ring sleeve
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 4
- 230000009977 dual effect Effects 0.000 claims 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 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
- F16F9/02—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
-
- 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
- F16F9/049—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 multi-chamber units
-
- 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
- F16F9/3207—Constructional features
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a self-adaptive rigidity-adjusting double-chamber air spring, which comprises a lifting ring sleeve, an air bag body and a piston cylinder, wherein a cover body is arranged at the first end of the lifting ring sleeve in a sealing manner; the second end of the lifting ring sleeve is fixedly provided with a fixed ring, the outer part of the lifting ring sleeve is sleeved with a sliding cylinder body in a sliding manner, the middle part of the sliding cylinder body is provided with a spring seat, the upper part of the spring seat is provided with a reset spring, the top end of the reset spring is propped against the inner side of the cover body, and the bottom end of the reset spring is propped against the top surface of the spring seat; the cover body is provided with an air inlet nozzle communicated with the inside of the air bag body. The invention has two air chambers, not only can give consideration to the stability and comfort, but also can increase the rigidity for resisting vibration along with the external vibration condition, can adaptively cope with the external environment in stages, and prolongs the service life of the air spring.
Description
Technical Field
The invention relates to the field of automobile air springs, in particular to a self-adaptive stiffness-adjusting double-chamber air spring.
Background
The air spring is filled with compressed air in a sealed container, and the air spring realizes the elastic action by utilizing the air compressibility and is generally arranged on a rear suspension; with the improvement of the living standard of people, drivers have higher requirements on the riding comfort of vehicles, and air springs are arranged on automobiles, so that the automobile is more ergonomic and can more show the comfort. The air spring has ideal nonlinear elastic characteristics, after the height adjusting device is additionally arranged, the height of the vehicle body does not change along with the increase and decrease of the load, the rigidity of the air spring can be designed to be lower, the riding comfort is good, the rigidity of the existing air spring is fixed, in order to pursue riding comfort, the rigidity of the air spring is lower, the dynamic travel of the air spring is overlarge when the vehicle passes through complex road conditions, the condition that the dynamic travel exceeds the effective travel range frequently occurs, and even the structural member of the air spring fails.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the self-adaptive stiffness-adjusting double-chamber air spring which is provided with two air chambers, can adaptively adjust the stiffness of the air spring along with the vibration condition, can give consideration to stable comfort, can increase the stiffness resisting vibration along with the external vibration condition, can adaptively cope with the external environment in stages, and prolongs the service life of the air spring.
The aim of the invention is achieved by the following technical scheme:
The self-adaptive rigidity-adjusting double-chamber air spring comprises a lifting ring sleeve, an air bag body and a piston cylinder, wherein a cover body is arranged at the first end of the lifting ring sleeve in a sealing manner, the cover body corresponds to the piston cylinder up and down, the first end of the air bag body is fixed on the cover body in a sealing manner, the second end of the air bag body is fixed at the top of the piston cylinder in a sealing manner, and the lifting ring sleeve is positioned in the air bag body; the lifting ring sleeve is provided with a piston rod in a telescopic manner, the outer side of the bottom of the piston cylinder is provided with a lifting ring seat, and the lower end part of the piston rod passes through the piston cylinder in a sealing manner and is fixedly connected with the lifting ring seat; the second end of the lifting ring sleeve is fixedly provided with a fixing ring, the outer part of the lifting ring sleeve is sleeved with a sliding cylinder body in a sliding manner, the middle part of the sliding cylinder body is provided with a spring seat, the upper part of the spring seat is provided with a reset spring, the top end of the reset spring is propped against the inner side of the cover body, and the bottom end of the reset spring is propped against the top surface of the spring seat; the cover body is provided with an air inlet nozzle communicated with the inside of the air bag body.
In order to better realize the invention, the upper part of the sliding cylinder body is an upper sliding cylinder, and the return spring is sleeved outside the upper sliding cylinder; the lower part of the sliding cylinder body is a lower sliding cylinder.
Preferably, the first end of the air bag body is detachably sealed and fixed on the cover body through a first retaining ring, and the second end of the air bag body is detachably sealed and fixed on the piston cylinder through a second retaining ring.
Preferably, a fixing ring is fixed at the bottom of the lifting ring sleeve.
Preferably, a supporting table surface corresponding to the spring seat is arranged at the top of the piston cylinder, an annular groove is formed in the supporting table surface, and an inner sealing ring is installed in the annular groove of the supporting table surface in a matched mode.
Preferably, the cover body is provided with a sleeve hole, and the first end of the lifting ring sleeve is matched and installed in the sleeve hole of the cover body and is sealed through an upper sealing ring.
Preferably, a V-shaped sealing ring is arranged between the upper sliding cylinder and the lifting ring sleeve, and a V-shaped sealing ring is arranged between the lower sliding cylinder and the lifting ring sleeve.
Preferably, a guide ring is further arranged between the upper sliding cylinder and the lifting ring sleeve, and a guide ring is further arranged between the lower sliding cylinder and the lifting ring sleeve.
Preferably, the first connecting piece is fixed on the lifting ring sleeve, and the second connecting piece is fixed on the lifting ring seat.
Preferably, the piston cylinder is provided with a piston rod cavity, the piston rod is installed in the piston rod cavity of the piston cylinder in a telescopic motion, and a lower sealing ring matched with the piston rod is installed in the piston rod cavity of the piston cylinder in a matched mode.
Compared with the prior art, the invention has the following advantages:
(1) The sliding cylinder body is provided with the spring seat, the reset spring is arranged on the spring seat, the sliding cylinder body can ascend and descend in the lifting ring sleeve to slide, the area of the air bag body, which is separated from the piston cylinder, is a first cavity, the interior of the piston cylinder is a second cavity, the air spring is matched with the automobile, when the automobile runs on a smooth road, the first cavity and the second cavity are communicated with each other, the piston rod extends out of the lifting ring sleeve, the sliding cylinder body supports the fixing ring under the action of the reset spring, at the moment, the rigidity of the air spring is minimum, and the shock absorption and riding comfort are good; when the automobile runs on a bumpy road, the piston rod is contracted to the lifting ring sleeve, the spring seat is contacted with the top of the piston cylinder, the first chamber is relatively independent of the second chamber, at the moment, the internal pressure of the second chamber is unchanged, the internal pressure of the first chamber is gradually increased, the rigidity of the air spring is increased, frequent and high-intensity vibration on the bumpy road can be dealt with, and the air spring can be better protected; simultaneously, as the piston rod is further contracted and the first chamber of the air spring is further compressed, the piston cylinder and the sliding cylinder body move upwards, the sliding cylinder body compresses the return spring, the rigidity is further improved under the combined action of the return spring, the pressure in the first chamber of the air spring and the like, and the limit moving stroke is also increased; when the road surface returns to the stable road surface again, the interior of the return spring and the air spring can be restored to the original state.
(2) The invention provides a brand-new air spring structure which is provided with two air chambers, can adaptively adjust the rigidity of the air spring along with the vibration condition, not only can give consideration to the stability and comfort, but also can increase the rigidity resisting the vibration along with the external vibration condition, can adaptively and stage to the external environment, and prolongs the service life of the air spring.
Drawings
FIG. 1 is a schematic structural diagram of a first and second chambers in an embodiment in a mutually communicating operation state;
FIG. 2 is a schematic structural diagram of the first and second chambers in the embodiment in an independent working state;
Fig. 3 is a schematic view of the air spring in the operating state of fig. 2, as it is further compressed.
Wherein, the names corresponding to the reference numerals in the drawings are:
the lifting ring comprises a lifting ring sleeve, a 2-air inlet nozzle, a 3-upper sealing ring, a 4-cover body, a 5-first retaining ring, a 6-return spring, a 7-sliding cylinder body, a 71-upper sliding cylinder, a 72-lower sliding cylinder, a 73-spring seat, an 8-air bag body, a 9-guide ring, a 10-V-shaped sealing ring, an 11-inner sealing ring, a 12-second retaining ring, a 13-fixed ring, a 14-piston cylinder, a 141-supporting table top, a 15-piston rod, a 16-lower sealing ring, a 17-lifting ring seat, a 18-first chamber, a 19-second chamber, a 20-first connecting piece and a 21-second connecting piece.
Detailed Description
The invention is further illustrated by the following examples:
Examples
As shown in fig. 1 to 3, a dual-chamber air spring capable of adaptively adjusting rigidity comprises a lifting ring sleeve 1, an air bag body 8 and a piston cylinder 14, wherein a cover body 4 is mounted at the first end of the lifting ring sleeve 1 in a sealing manner (preferably, a sleeve hole is formed in the cover body 4), the first end of the lifting ring sleeve 1 is mounted in the sleeve hole of the cover body 4 in a matched manner and is sealed through an upper sealing ring 3, the lifting ring sleeve 1 is fixedly connected with the cover body 4 in a sealing manner, the upper sealing ring 3 is used for improving the sealing performance of the lifting ring sleeve), the cover body 4 corresponds to the piston cylinder 14 up and down, the first end of the air bag body 8 is fixed on the cover body 4 in a sealing manner, the second end of the air bag body 8 is fixed at the top of the piston cylinder 14 in a sealing manner, and the lifting ring sleeve 1 is positioned in the air bag body 8. The lifting ring sleeve 1 is telescopically provided with a piston rod 15, the outer side of the bottom of the piston cylinder 14 is provided with a lifting ring seat 17, and the lower end part of the piston rod 15 passes through the piston cylinder 14 in a sealing way and is fixedly connected with the lifting ring seat 17. The second end of the lifting ring sleeve 1 is fixedly provided with a fixed ring 13, the outer part of the lifting ring sleeve 1 is sleeved with a sliding cylinder body 7 in a sliding manner, the middle part of the sliding cylinder body 7 is provided with a spring seat 73, the upper part of the spring seat 73 is provided with a return spring 6, the top end of the return spring 6 is propped against the inner side of the cover body 4, and the bottom end of the return spring 6 is propped against the top surface of the spring seat 73. The cover body 4 is provided with an air inlet nozzle 2 communicated with the inside of the air bag body 8, the air inlet nozzle 2 is used for pressing compressed air into the air spring, preferably, the cover body 4 is provided with an air inlet, and the air inlet nozzle 2 is arranged on the air inlet in a sealing way.
According to one embodiment of the invention, the upper part of the sliding cylinder body 7 is an upper sliding cylinder 71, the return spring 6 is sleeved outside the upper sliding cylinder 71 (the sliding cylinder body 7 is slidably assembled on the lifting ring sleeve 1, the return spring 6 plays a spring return role), and the lower part of the sliding cylinder body 7 is a lower sliding cylinder 72. Preferably, a fixed ring 13 is fixed at the bottom of the lifting ring sleeve 1, and the fixed ring 13 is installed on the lifting ring sleeve 1 and used for positioning the working state of the pulley body 7.
According to one embodiment of the present invention, referring to fig. 1, a first end of the air bag body 8 is detachably sealed and fixed to the cover body 4 through the first retaining ring 5 (the first retaining ring 5 presses the first end of the air bag body 8 against the cover body 4 to ensure that the air bag body 8 cannot leak air during operation), and a second end of the air bag body 8 is detachably sealed and fixed to the piston cylinder 14 through the second retaining ring 12 (the second retaining ring 12 presses the second end of the air bag body 8 against the piston cylinder 14 to ensure that the air bag body 8 cannot leak air during operation).
According to one embodiment of the present invention, as shown in fig. 1 and 2, a supporting table 141 corresponding to the spring seat 73 is provided on the top of the piston cylinder 14, an annular groove is provided on the supporting table 141, an inner sealing ring 11 is installed in the annular groove of the supporting table 141 in a matching manner, the inner sealing ring 11 is installed on the top of the piston cylinder 14, and when the spring seat 73 of the slide body 7 is pressed on the top of the piston cylinder 14, the inner sealing ring 11 plays a sealing role to divide the air spring interior into two cavities (a first cavity 18 and a second cavity 19, respectively, see fig. 3).
According to one embodiment of the invention, a V-shaped sealing ring 10 is arranged between the upper sliding cylinder 71 and the lifting ring sleeve 1, and a V-shaped sealing ring 10 is arranged between the lower sliding cylinder 72 and the lifting ring sleeve 1; a guide ring 9 is also arranged between the upper sliding cylinder 71 and the lifting ring sleeve 1, and a guide ring 9 is also arranged between the lower sliding cylinder 72 and the lifting ring sleeve 1. The V-shaped sealing ring 10 is mounted on the lifting ring sleeve 1, so that compressed air cannot flow between the sliding cylinder 7 and the lifting ring sleeve 1 in the moving process of the sliding cylinder 7.
Preferably, the first connecting piece 20 is fixed on the lifting ring sleeve 1, and the second connecting piece 21 is fixed on the lifting ring seat 17.
According to one embodiment of the invention, the piston cylinder 14 has a piston rod chamber in which a piston rod 15 is mounted for telescopic movement in the piston rod chamber of the piston cylinder 14, in which piston rod chamber of the piston cylinder 14 a lower sealing ring 16 is mounted in cooperation with the piston rod 15. The piston rod 15 is assembled with the piston cylinder 14 in a movable fit manner, the piston rod 15 can also move in a telescopic manner in the lifting ring sleeve 1, and sealing is ensured through the lower sealing ring 16; the ring seat 17 is in threaded connection with the end of the piston rod 15 (the ring seat 17 is located at the bottom end side of the piston cylinder 14).
When a vehicle runs on a complex road, the actual movement travel often exceeds the designed travel due to the fact that the road is rugged and the rigidity of the common air spring is low. In the invention, when the air spring works, compressed air enters the air spring from the air inlet nozzle 2, when the vehicle runs on a straight road, the air spring moves up and down in a designed travel range, the sliding cylinder body 7 and the hanging ring sleeve 1 are in a relatively static state under the up-down action of the reset spring 6 and the fixed ring 13, the sliding cylinder body 7 does not move, a first cavity 18 is arranged in the air bag body 8 of the air spring, a second cavity 19 is arranged in the piston cylinder 14, at the moment, the first cavity 18 and the second cavity 19 are mutually communicated into a whole, the overall rigidity of the air spring is lower, the vibration isolation effect is better, and the vehicle has excellent comfort. When the vehicle runs on a rugged road, as shown in fig. 2, the movement stroke of the air spring is increased, and when the air spring is compressed, the spring seat 73 of the sliding cylinder body 7 moves to be contacted with the top of the piston cylinder 14, the top of the return spring 6 acts with the cover body 4, the bottom of the return spring 6 acts with the spring seat 73, at the moment, the inner sealing ring 11 at the top of the piston cylinder 14 acts with the spring seat 73 in a sealing way, and the first chamber 18 and the second chamber 19 are divided into two independent chambers. As the air spring continues to compress, the air pressure in the first chamber 18 inside the air bag body 8 will continuously rise due to the compression pressure of the air spring, and the air pressure in the second chamber 19 of the piston cylinder 14 will not change due to the no longer changing volume in the chamber itself. The pressure in the first chamber 18 of the air bag body 8 is higher than the pressure in the second chamber 19 of the piston cylinder 14, and during continued compression of the air spring (when the piston rod 15 is further retracted to the eye sleeve 1, see fig. 3), the air bag body 8 increases in stiffness due to the reduced internal cavity and against the compression force of the air spring, controls and reduces the extreme compression stroke of the air spring in bad road conditions.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The utility model provides a self-adaptation adjusts rigidity double chamber air spring which characterized in that: the novel lifting ring comprises a lifting ring sleeve (1), an air bag body (8), a piston cylinder (14) and a cover body (4), wherein a sleeve hole is formed in the cover body (4), a first end of the lifting ring sleeve (1) is matched and installed in the sleeve hole of the cover body (4) and is sealed through an upper sealing ring (3), the lifting ring sleeve (1) is fixedly connected with the cover body (4) in a sealing manner, the upper sealing ring (3) is used for improving the sealing performance of the lifting ring sleeve, the cover body (4) corresponds to the piston cylinder (14) up and down, the first end of the air bag body (8) is fixed on the cover body (4) in a sealing manner, a second end of the air bag body (8) is fixed at the top of the piston cylinder (14) in a sealing manner, and the lifting ring sleeve (1) is positioned in the air bag body (8); a piston rod (15) is arranged on the telescopic part of the lifting ring sleeve (1), a lifting ring seat (17) is arranged on the outer side of the bottom of the piston cylinder (14), and the end part of the lower end of the piston rod (15) penetrates through the bottom of the piston cylinder (14) in a sealing way and is fixedly connected with the lifting ring seat (17); the lifting ring sleeve (1) is fixedly provided with a fixed ring (13) at the bottom of the second end, the lifting ring sleeve (1) is externally sleeved with a sliding cylinder body (7) in a sliding manner, the upper part of the sliding cylinder body (7) is provided with an upper sliding cylinder (71), a return spring (6) is sleeved outside the upper sliding cylinder (71), the sliding cylinder body (7) is slidingly assembled on the lifting ring sleeve (1), the return spring (6) plays a spring return role, the lower part of the sliding cylinder body (7) is provided with a lower sliding cylinder (72), the outer part of the lower sliding cylinder (72) is not sleeved with a spring, and the fixed ring (13) is arranged on the lifting ring sleeve (1) and used for positioning the working state of the sliding cylinder body (7);
The middle part of the sliding cylinder body (7) is provided with a spring seat (73), the upper part of the spring seat (73) is provided with a return spring (6), the top end of the return spring (6) is propped against the inner side of the cover body (4), and the bottom end of the return spring (6) is propped against the top surface of the spring seat (73); the cover body (4) is provided with an air inlet nozzle (2) communicated with the inside of the air bag body (8); the top of the piston cylinder (14) is provided with a supporting table board (141) corresponding to the spring seat (73), the supporting table board (141) is provided with an annular groove, an inner sealing ring (11) is installed in the annular groove of the supporting table board (141) in a matched mode, the inner sealing ring (11) is installed at the top of the piston cylinder (14), when the spring seat (73) of the sliding cylinder body (7) is pressed at the top of the piston cylinder (14), the inner sealing ring (11) plays a role in sealing, the air spring is divided into a first cavity (18) and a second cavity (19), the area of the air bag body (8) for separating the piston cylinder (14) is the first cavity (18), and the interior of the piston cylinder (14) is the second cavity (19);
The piston cylinder (14) is provided with a piston rod cavity, the piston rod (15) is installed in the piston rod cavity of the piston cylinder (14) in a telescopic movement, and a lower sealing ring (16) matched with the piston rod (15) is installed in the piston rod cavity of the piston cylinder (14) in a matched manner; the piston rod (15) is assembled with the piston cylinder (14) in a movable fit manner, the piston rod (15) can also stretch and move in the lifting ring sleeve (1), and sealing is ensured through the lower sealing ring (16); the lifting ring seat (17) is in threaded connection with the end part of the piston rod (15), and the lifting ring seat (17) is positioned at the bottom end side of the piston cylinder (14);
When the self-adaptive rigidity-adjusting double-chamber air spring works, compressed air enters the air spring from the air inlet nozzle (2), when a vehicle runs on a straight road, the air spring moves up and down in a designed travel range, the sliding cylinder body (7) and the hanging ring sleeve (1) are in a relatively static state due to the up-down action of the reset spring (6) and the fixed ring (13), the sliding cylinder body (7) does not move, a first chamber (18) is arranged in the air bag body (8) of the air spring, a second chamber (19) is arranged in the piston cylinder (14), at the moment, the first chamber (18) and the second chamber (19) are communicated with each other into a whole, the overall rigidity of the air spring is low, the vibration isolation effect is good, and the vehicle has excellent comfortableness; when the vehicle runs on a rugged road, the movement stroke of the air spring is increased, when the air spring is compressed, the spring seat (73) of the sliding cylinder body (7) moves to be in contact with the top of the piston cylinder 14, the top of the return spring (6) acts on the cover body (4), the bottom of the return spring (6) acts on the spring seat (73), at the moment, the inner sealing ring (11) at the top of the piston cylinder (14) acts on the spring seat (73) in a sealing way, and the first chamber (18) and the second chamber (19) are divided into two independent chambers; when the air spring continues to compress, the air pressure in the first chamber (18) in the air bag body (8) continuously rises due to the compression pressure of the air spring, and the air pressure in the second chamber (19) of the piston cylinder (14) is unchanged due to the fact that the volume in the chamber is not changed any more; the pressure in the first chamber (18) of the air bag body (8) is higher than the pressure in the second chamber (19) of the piston cylinder (14), and in the process of continuing compression of the air spring, the piston rod (15) is further contracted to the lifting ring sleeve (1), and the air spring stiffness of the air bag body (8) is increased due to the reduction of the internal chamber and the resistance to the compression force of the air spring, so that the limit compression stroke of the air spring under a bad road condition is controlled and reduced; when the road surface returns to the stable road surface again, the interior of the return spring and the air spring can be restored to the original state.
2. An adaptive stiffness dual chamber air spring according to claim 1, wherein: the first end of the air bag body (8) is detachably sealed and fixed on the cover body (4) through the first retaining ring (5), and the second end of the air bag body (8) is detachably sealed and fixed on the piston cylinder (14) through the second retaining ring (12).
3. An adaptive stiffness dual chamber air spring according to claim 1, wherein: a V-shaped sealing ring (10) is arranged between the upper sliding cylinder (71) and the lifting ring sleeve (1), and a V-shaped sealing ring (10) is arranged between the lower sliding cylinder (72) and the lifting ring sleeve (1).
4. A dual chamber adaptive stiffness air spring according to claim 1 or 3, wherein: a guide ring (9) is further arranged between the upper sliding cylinder (71) and the lifting ring sleeve (1), and a guide ring (9) is further arranged between the lower sliding cylinder (72) and the lifting ring sleeve (1).
5. An adaptive stiffness dual chamber air spring according to claim 1, wherein: the lifting ring sleeve (1) is fixedly provided with a first connecting piece (20), and the lifting ring seat (17) is fixedly provided with a second connecting piece (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111536627.5A CN114562532B (en) | 2021-12-15 | 2021-12-15 | Self-adaptive rigidity-adjusting double-chamber air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111536627.5A CN114562532B (en) | 2021-12-15 | 2021-12-15 | Self-adaptive rigidity-adjusting double-chamber air spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114562532A CN114562532A (en) | 2022-05-31 |
| CN114562532B true CN114562532B (en) | 2024-07-12 |
Family
ID=81711120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111536627.5A Active CN114562532B (en) | 2021-12-15 | 2021-12-15 | Self-adaptive rigidity-adjusting double-chamber air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114562532B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102245A (en) * | 2013-03-04 | 2015-11-25 | 威巴克商用车辆气动弹簧有限责任公司 | Pneumatic spring arrangement or pneumatic spring damper with integrated valve control |
| CN216666326U (en) * | 2021-12-15 | 2022-06-03 | 湖北溢滔科技有限公司 | Double-chamber air spring |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004012881A1 (en) * | 2004-03-16 | 2005-10-06 | Daimlerchrysler Ag | Gas spring system with centrally guided hose bellows |
| KR101218834B1 (en) * | 2010-09-29 | 2013-01-07 | 주식회사 만도 | Body amplitude sensitive air spring |
| CN204755703U (en) * | 2015-06-30 | 2015-11-11 | 贵州精忠橡塑实业有限公司 | Suspension of vehicle |
| DE102017102714B4 (en) * | 2017-02-10 | 2021-05-06 | Vibracoustic Cv Air Springs Gmbh | Air spring or air spring damper |
| DE102018112627B4 (en) * | 2018-05-25 | 2019-12-19 | Vibracoustic Cv Air Springs Gmbh | Air spring for controlling the level of a driver's cab or a motor vehicle |
| CN209856293U (en) * | 2018-12-18 | 2019-12-27 | 陈禾钰 | Shock absorber structure for vehicle |
| CN214888565U (en) * | 2021-06-23 | 2021-11-26 | 湖北善工精机科技有限公司 | Shock absorber for automobile cab |
| CN113685475B (en) * | 2021-08-25 | 2022-05-10 | 无锡琼琚机械科技有限公司 | Air spring shock absorber for suspending truck cab |
-
2021
- 2021-12-15 CN CN202111536627.5A patent/CN114562532B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102245A (en) * | 2013-03-04 | 2015-11-25 | 威巴克商用车辆气动弹簧有限责任公司 | Pneumatic spring arrangement or pneumatic spring damper with integrated valve control |
| CN216666326U (en) * | 2021-12-15 | 2022-06-03 | 湖北溢滔科技有限公司 | Double-chamber air spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114562532A (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4828232A (en) | Vehicle air suspension strut with compliant cover plate assembly | |
| US9541153B2 (en) | Valve structure of shock absorber | |
| CA2627817A1 (en) | Single cylinder type hydraulic shock absorber for vehicle | |
| US9611915B2 (en) | Valve structure of shock absorber | |
| CN212272918U (en) | Double-spring shock absorber | |
| CN114562532B (en) | Self-adaptive rigidity-adjusting double-chamber air spring | |
| CN216666326U (en) | Double-chamber air spring | |
| CN212250942U (en) | Vibration damper | |
| CN210290575U (en) | Single-cylinder double-air-chamber hydro-pneumatic spring | |
| CN204664267U (en) | Single cylinder shock absorber | |
| CN115013464B (en) | Hydro-pneumatic spring and vehicle suspension device | |
| CN218347842U (en) | Air bag type pressure adjustable shock absorber | |
| CN115388125A (en) | Multistage buffering bumper shock absorber | |
| CN110206843A (en) | A kind of twin-tub cylinder double chamber hydragas spring | |
| CN213870882U (en) | Compression buffer structure of shock absorber | |
| CN101482157A (en) | Oil gas spring with energy accumulator in rod | |
| CN110953280B (en) | Liquid-gas buffer | |
| CN210290574U (en) | Double-cylinder double-air-chamber hydro-pneumatic spring | |
| CN211343836U (en) | Hydraulic shock absorber for electric vehicle | |
| CN201382116Y (en) | Rod power accumulator type oil-gas spring | |
| CN201511774U (en) | Energy-saving vibration absorber of car | |
| CN217481842U (en) | Rear spring buffer damper | |
| CN213808609U (en) | Large-stroke air-controlled adjustable air spring | |
| CN215720437U (en) | Shock attenuation nitrogen spring of central through-hole | |
| CN203756839U (en) | Hydro-pneumatic spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 442003 No. 19 Xicheng Avenue, industrial new area, Zhangwan District, Shiyan City, Hubei Province Applicant after: Dongshi Air Vibration Reduction Technology (Hubei) Co.,Ltd. Address before: 442003 No. 19 Xicheng Avenue, industrial new area, Zhangwan District, Shiyan City, Hubei Province Applicant before: Hubei Yitao Technology Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant |