CN109808436B - Air suspension system for vehicle - Google Patents
Air suspension system for vehicle Download PDFInfo
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- CN109808436B CN109808436B CN201910114067.0A CN201910114067A CN109808436B CN 109808436 B CN109808436 B CN 109808436B CN 201910114067 A CN201910114067 A CN 201910114067A CN 109808436 B CN109808436 B CN 109808436B
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Abstract
The invention relates to the field of vehicles, and discloses an air suspension system for vehicles, which comprises a shock absorption rod (2) and an air spring (1), wherein a shock absorption ring (21) is fixedly arranged on the outer wall of the shock absorption rod (2), the air suspension system also comprises an upper connecting plate (3) and a lower connecting plate (4), and the air spring (1) is hermetically connected with the upper connecting plate (3) and the shock absorption ring (21); the air spring (1) comprises an outer spring bag (11), an air guide device (12) and a damping spiral spring (5); the air guide device (12) comprises an annular mounting plate (121) fixed to the upper end of the shock absorption rod (2), a plurality of guide holes (1211) are formed in the annular mounting plate (121), and a plurality of arc-shaped plates (122) are arranged on the annular mounting plate (121). The air guide device arranged in the air spring effectively buffers the instant pressure applied to the air spring, prevents the failure of the air spring and prolongs the service life of a product.
Description
Technical Field
The invention relates to the field of vehicles, in particular to an air suspension system for a vehicle.
Background
In a traditional car suspension system, a spring is a steel spring with linear characteristics, a car body rises very high in a no-load state, the car body is pressed very low in a heavy load state, and the height of the suspension system changes along with the change of the load. The suspension system of modern car adopts air suspension system more, and according to the difference of road conditions and distance sensor's signal, the driving computer can judge the body height change, controls air compressor and exhaust valve again, makes air spring automatic compression or extension to reduce or rise chassis ground clearance, in order to increase the trafficability characteristic of high-speed automobile body stability or complicated road conditions. The main components of the air suspension system are an air spring assembly, a height control valve and a shock absorber which are respectively arranged at different positions, and the air suspension system has the phenomena of complex arrangement, inconvenient installation and operation, overlarge instantaneous impact in an air spring and the like.
In the prior art, the patent number CN201721799390.9 is a chassis assembly of a passenger car with an air suspension system, which can keep better controllability and stability of the passenger car under different road conditions, but also has the problem that the air spring is subjected to an excessive instantaneous pressure and fails.
Disclosure of Invention
The present invention addresses the shortcomings of the prior art by providing an air suspension system for a vehicle.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the air suspension system for the vehicle comprises a shock absorption rod and an air spring, wherein a shock absorption ring is fixedly arranged on the outer wall of the shock absorption rod, the air suspension system also comprises an upper connecting plate and a lower connecting plate, the upper connecting plate is positioned above the shock absorption rod, the lower connecting plate is fixed at the lower end of the shock absorption rod, the air spring is sleeved at the upper end of the shock absorption rod, the upper end of the air spring is fixedly connected with the upper connecting plate, the lower end of the air spring is fixedly arranged on the shock absorption ring, and the air spring is; the air spring comprises an outer spring bag, an air guide device arranged in the outer spring bag and a damping spiral spring, wherein the damping spiral spring is positioned in the outer spring bag, and the upper end and the lower end of the damping spiral spring are respectively pressed on the lower surface of the upper connecting plate and the upper surface of the damping rod; air guiding device is including fixing the annular mounting panel in the shock-absorbing bar upper end, be equipped with 15mm ~50 mm's clearance between the inner wall of annular mounting panel and spring outer bag, be equipped with a plurality of water conservancy diversion holes on the annular mounting panel, all be equipped with a plurality of arcs on the upper surface of annular mounting panel and the lower surface, the arc distributes around the axial circumference of annular mounting panel, the both ends of arc are different with the distance of annular mounting panel axis, the one end that the annular mounting panel axis was kept away from to the arc is the outer end, the one end that the arc is close to the annular mounting panel axis is inner, the bulge height of arc outer end is 1.3~2.1 times the inner bulge height of arc.
Preferably, the inner wall of the spring outer bag is provided with a plurality of annular grooves which are sequentially distributed along the axial direction of the air spring, the section of each annular groove is arc-shaped, and a plurality of hemispherical bulges are uniformly distributed on the groove surface of each annular groove.
Preferably, the air spring is provided with an air inlet hole and an air outlet hole, the air inlet hole and the air outlet hole are both located at the lower end of the air spring and are arranged symmetrically relative to the axial direction of the air spring, an air inlet pipe is installed in the air inlet hole, an air outlet pipe is installed in the air outlet hole, the air inlet pipe is connected with an air pump, an air inlet valve is installed on the air inlet pipe, and an air outlet.
Preferably, the vehicle further comprises a control system, the control system comprises a monitoring module, an analysis module and a valve module, the monitoring module senses the distance change between the vehicle bottom plate and the ground and generates a distance signal to be sent to the analysis module, the analysis module controls the valve module to work according to the received distance signal, and the valve module controls the air inlet valve and the air outlet valve to be closed.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: through the air guiding device arranged in the air spring, the instant pressure applied to the air spring is effectively buffered, the failure of the air spring is prevented, and the service life of a product is prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the annular mounting plate of fig. 1.
Fig. 3 is a functional block diagram of the present invention.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-air spring, 2-shock-absorbing rod, 3-upper connecting plate, 4-lower connecting plate, 5-shock-absorbing helical spring, 11-spring outer bag, 111-annular groove, 121-annular mounting plate, 122-arc plate, 1111-projection, 101-air inlet hole, 102-air outlet hole, 103-air pump, 1011-air inlet pipe, 1021-air outlet pipe, 10111-air inlet valve, 10211-air outlet valve, 1211-flow guide hole and 21-shock-absorbing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
An air suspension system for a vehicle comprises a shock absorption rod 2 and an air spring 1, wherein a shock absorption ring 21 is fixedly arranged on the outer wall of the shock absorption rod 2, the air suspension system further comprises an upper connecting plate 3 and a lower connecting plate 4, the upper connecting plate 3 is positioned above the shock absorption rod 2, the lower connecting plate 4 is fixed at the lower end of the shock absorption rod 2, the air spring 1 is sleeved at the upper end of the shock absorption rod 2, the upper end of the air spring 1 is fixedly connected with the upper connecting plate 3, the lower end of the air spring 1 is fixedly arranged on the shock absorption ring 21, the air spring 1 is hermetically connected with the upper connecting plate 3 and the shock absorption ring 21, and sealing rings are arranged at the upper end and the lower.
The inner wall of the spring outer bag 11 is provided with a plurality of annular grooves 111 which are sequentially distributed along the axial direction of the air spring 1, the cross section of each annular groove 111 is arc-shaped, and a plurality of hemispherical protrusions 1111 are uniformly distributed on the groove surface of each annular groove 111. The projection 1111 is also effective to decompose direct impact of the internal gas on the spring outer bag 11.
Air spring 1 is last to be equipped with inlet port 101 and venthole 102, and inlet port 101 and venthole 102 all are located air spring 1's lower extreme and set up about air spring 1's axial symmetry, install intake pipe 1011 in the inlet port 101, install outlet duct 1021 in the venthole 102, and intake pipe 1011 is connected with air pump 103, installs admission valve 10111 on the intake pipe 1011, installs bleeder valve 10211 on the outlet duct 1021.
The automobile air inlet valve is characterized by further comprising a control system, wherein the control system comprises a monitoring module, an analysis module and a valve module, the monitoring module is used for sensing the distance change between the automobile bottom plate and the ground and generating a distance signal to be sent to the analysis module, the analysis module is used for controlling the valve module to work according to the received distance signal, and the valve module is used for controlling the closing of the air inlet valve 10111 and the air outlet valve 10211. Through analysis of a traveling computer (namely a control system), when the load of the vehicle is heavy, the valve module controls the air inlet valve 10111 to admit air, so that the rigidity of the air spring 1 is enhanced; when the load of the vehicle is reduced, the valve module controls the air outlet valve 10211 to exhaust air, so that the internal pressure of the air spring 1 is reduced, and the smooth operation of the vehicle is never ensured.
Example 2
The same as the embodiment 1, except that the air spring 1 comprises an outer spring bag 11, an air guide device 12 arranged in the outer spring bag 11, and a damping spiral spring 5, wherein the damping spiral spring 5 is positioned in the outer spring bag 11, and the upper end and the lower end of the damping spiral spring 5 are respectively pressed on the lower surface of the upper connecting plate 3 and the upper surface of the damping rod 2; air guiding device 12 is including fixing annular mounting panel 121 in the upper end of shock-absorbing rod 2, annular mounting panel 121 is installed on the outer wall of shock-absorbing rod 2 upper end and can the axis of shock-absorbing rod 2 rotate as the axle through the bearing, be equipped with 20 mm's clearance between the inner wall of annular mounting panel 121 and spring outer bag 11, be equipped with a plurality of water conservancy diversion holes 1211 on the annular mounting panel 121, all be equipped with a plurality of arcs 122 on the upper surface of annular mounting panel 121 and the lower surface, arc 122 distributes around the axial circumference of annular mounting panel 121, the both ends of arc 122 are different with the distance of annular mounting panel 121 axis, the one end that annular mounting panel 121 axis was kept away from to arc 122 is the outer end, the one end that arc 122 is close to annular mounting panel 121 axis is inner, the protruding height of arc 122 outer end is 1.4 times of. The pressure in the air spring 1 can be decomposed through the damping spiral spring 5 and the damping spiral spring plays a supporting role, in addition, the inner cavity of the air spring 1 is divided into two chambers by the annular mounting plate 121 arranged in the air spring 1 and is communicated through the flow guide holes 1211 arranged on the annular mounting plate 121, when the air spring 1 is pressurized, the internal gas is compressed, the compressed gas flows in the air spring 1 in an annular mode through the guide of the arc-shaped plate 122, the direct impact of the internal gas on the outer spring bag 11 caused by overlarge instantaneous pressure is avoided, and the service life is prolonged.
Example 3
The same as embodiment 2, except that a gap of 27mm is provided between the annular mounting plate 121 and the inner wall of the spring outer case 11, and the height of the outer end of the arc plate 122 is 1.7 times that of the inner end of the arc plate 122.
Example 4
The same as embodiment 2, except that a gap of 35mm is provided between the annular mounting plate 121 and the inner wall of the spring outer case 11, and the height of the outer end of the arc plate 122 is 1.8 times that of the inner end of the arc plate 122.
Example 5
The same as embodiment 2, except that a gap of 40mm is provided between the annular mounting plate 121 and the inner wall of the spring outer bag 11, and the height of the outer end of the arc plate 122 is 1.9 times that of the inner end of the arc plate 122.
Example 6
The same as embodiment 2, except that a gap of 42mm is provided between the annular mounting plate 121 and the inner wall of the spring outer bag 11, and the height of the outer end of the arc plate 122 is 1.9 times that of the inner end of the arc plate 122.
Example 7
The same as embodiment 2, except that a 47mm gap is provided between the annular mounting plate 121 and the inner wall of the spring outer case 11, and the height of the outer end of the arc plate 122 is 2 times that of the inner end of the arc plate 122.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (4)
1. Vehicle air suspension system, including shock attenuation pole (2) and air spring (1), its characterized in that: the damping rod comprises a damping rod (2), a damping ring (21), an upper connecting plate (3) and a lower connecting plate (4), wherein the upper connecting plate (3) is positioned above the damping rod (2), the lower connecting plate (4) is fixed at the lower end of the damping rod (2), an air spring (1) is sleeved at the upper end of the damping rod (2), the upper end of the air spring (1) is fixedly connected with the upper connecting plate (3), the lower end of the air spring (1) is fixedly arranged on the damping ring (21), and the air spring (1) is hermetically connected with the upper connecting plate (3) and the damping ring (21); the air spring (1) comprises an outer spring bag (11), an air guide device (12) arranged in the outer spring bag (11) and a damping spiral spring (5), wherein the damping spiral spring (5) is positioned in the outer spring bag (11), and the upper end and the lower end of the damping spiral spring (5) are respectively pressed on the lower surface of the upper connecting plate (3) and the upper surface of the damping rod (2); air guiding device (12) is including fixing annular mounting panel (121) in shock-absorbing rod (2) upper end, be equipped with 15mm ~50 mm's clearance between the inner wall of annular mounting panel (121) and spring outer bag (11), be equipped with a plurality of water conservancy diversion holes (1211) on annular mounting panel (121), all be equipped with a plurality of arcs (122) on the upper surface of annular mounting panel (121) and the lower surface, arc (122) distribute around the axial circumference of annular mounting panel (121), the both ends of arc (122) are different with the distance of annular mounting panel (121) axis, the one end that annular mounting panel (121) axis was kept away from in arc (122) is the outer end, the one end that arc (122) are close to annular mounting panel (121) axis is inner, the arch height of arc (122) outer end is 1.3~2.1 times of the arch height of arc (122) inner.
2. The vehicular air suspension system according to claim 1, characterized in that: the inner wall of the spring outer bag (11) is provided with a plurality of annular grooves (111) which are sequentially distributed along the axial direction of the air spring (1), the cross section of each annular groove (111) is arc-shaped, and a plurality of hemispherical protrusions (1111) are uniformly distributed on the groove surface of each annular groove (111).
3. The vehicular air suspension system according to claim 1, characterized in that: be equipped with inlet port (101) and venthole (102) on air spring (1), inlet port (101) and venthole (102) all are located the lower extreme of air spring (1) and set up about the axial symmetry of air spring (1), install intake pipe (1011) in inlet port (101), install outlet duct (1021) in venthole (102), intake pipe (1011) are connected with air pump (103), install admission valve (10111) on intake pipe (1011), install air outlet valve (10211) on outlet duct (1021).
4. The vehicular air suspension system according to claim 3, characterized in that: the automobile air inlet valve further comprises a control system, the control system comprises a monitoring module, an analysis module and a valve module, the monitoring module senses the distance change between the automobile bottom plate and the ground and generates a distance signal to be sent to the analysis module, the analysis module controls the valve module to work according to the received distance signal, and the valve module controls the closing of the air inlet valve (10111) and the air outlet valve (10211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114067.0A CN109808436B (en) | 2019-02-14 | 2019-02-14 | Air suspension system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114067.0A CN109808436B (en) | 2019-02-14 | 2019-02-14 | Air suspension system for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109808436A CN109808436A (en) | 2019-05-28 |
| CN109808436B true CN109808436B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910114067.0A Active CN109808436B (en) | 2019-02-14 | 2019-02-14 | Air suspension system for vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112248736B (en) * | 2020-10-24 | 2023-03-14 | 安徽思诺物流装备有限公司 | Air spring suspension system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3884454A (en) * | 1973-10-29 | 1975-05-20 | Lear Siegler Inc | Air spring system and damped air valve therefor |
| US8870203B2 (en) * | 2010-01-19 | 2014-10-28 | Lbc Contracting, Ltd. | Vehicle leaf spring to air ride suspension conversion assembly |
| CN102367046A (en) * | 2011-10-18 | 2012-03-07 | 杨洁 | Air spring with function of regulating static stiffness by filler and regulating dynamic stiffness by pressure difference |
| CN206357944U (en) * | 2016-11-27 | 2017-07-28 | 丹阳市联铖汽车配件有限公司 | A kind of automobile air hangs crossbeam |
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