CN110552991B - Big curved bag formula air spring and rail vehicle - Google Patents
Big curved bag formula air spring and rail vehicle Download PDFInfo
- Publication number
- CN110552991B CN110552991B CN201910923725.0A CN201910923725A CN110552991B CN 110552991 B CN110552991 B CN 110552991B CN 201910923725 A CN201910923725 A CN 201910923725A CN 110552991 B CN110552991 B CN 110552991B
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- retaining ring
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- 238000004891 communication Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
- F16F13/102—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of flexible walls of equilibration chambers; decoupling or self-tuning means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/20—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper characterised by comprising also a pneumatic spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a big curved bag type air spring and a railway vehicle, wherein the air spring comprises: an upper cover plate; the retaining ring is arranged on the lower surface of the upper cover plate, and a limiting piece is arranged below the outer side of the retaining ring; the auxiliary spring is arranged at intervals with the upper cover plate; the first air bag is arranged between the upper cover plate and the auxiliary spring, and the top of the first air bag is connected with the inner side of the retaining ring; the second air bag is arranged in a space formed by the retaining ring, the limiting piece and the upper part of the first air bag, and is provided with an air inlet nozzle. The invention can adjust the vertical rigidity, the horizontal rigidity and other performances of the big curved bag type air spring in real time, namely adjust the vibration performance of the vehicle in real time, and the stability and the safety of the vehicle can be ensured when the vehicle runs at different speeds and line conditions.
Description
Technical Field
The invention belongs to the technical field of vibration reduction of railway vehicles, relates to a vibration reduction device of a railway vehicle, and particularly relates to a large curved bag type air spring and a railway vehicle.
Background
The air spring is arranged between the vehicle body and the bogie, is used for transferring vertical load, transverse load, torque and the like, absorbing vertical and horizontal vibration, providing horizontal restoring force and the like, and has great influence on the stability and comfort of the vehicle.
Referring to fig. 1, the conventional large curved bag type air spring comprises an upper cover plate 1, a retaining ring 2, an auxiliary spring 3 and an air bag 4, wherein the upper cover plate 1 is positioned below a vehicle body or a swing bolster and has functions of sealing and load transmission, the retaining ring 2 and the air bag 5 are positioned below the upper cover plate 1, the auxiliary spring 7 is positioned below the air bag 5, the air bag plays a main vibration damping role in a normal inflation state of the air spring, and the vertical stiffness and the horizontal stiffness of the conventional large curved bag type air spring are determined immediately after the structure of the conventional large curved bag type air spring is fixed, and cannot be adjusted.
At present, the running of trains with different speed grades has great dependence on the line conditions, and in order to ensure the running stability and safety of the vehicles, the performance of the air spring is changed along with the running speed and the line conditions. However, the current air spring structure cannot meet the requirement.
Disclosure of Invention
The invention provides a large curved bag type air spring with real-time adjustable performance parameters and a railway vehicle, aiming at the problems that the performance of the existing large curved bag type air spring cannot be changed and the like.
In order to achieve the above object, the present invention provides a big bellow type air spring, comprising:
an upper cover plate;
the retaining ring is arranged on the lower surface of the upper cover plate, and a limiting piece is arranged below the outer side of the retaining ring;
the auxiliary spring is arranged at intervals with the upper cover plate;
the first air bag is arranged between the upper cover plate and the auxiliary spring, and the top of the first air bag is connected with the inner side of the retaining ring;
the second air bag is arranged in a space formed by the retaining ring, the limiting piece and the upper part of the first air bag, and is provided with an air inlet nozzle.
Preferably, the air inlet nozzle comprises an air inlet nozzle body and a shut-off valve arranged on the air inlet nozzle body.
Further, still including automatic gassing device that fills, automatic gassing device that fills include with the air supply unit of suction nozzle intercommunication, controller, with pressure sensor that the controller is connected and with the solenoid valve that the controller is connected, pressure sensor locates inside the second gasbag or with the second gasbag intercommunication, the solenoid valve is located on the suction nozzle, the solenoid valve is located the outside of shutoff valve, the shutoff valve with the controller is connected.
Preferably, the air source device comprises an air source and a compressor communicated with the air source, the compressor is communicated with the air inlet nozzle through an air pipeline, and the compressor is connected with the controller.
Preferably, the auxiliary spring comprises an auxiliary spring body, a supporting seat arranged at an interval with the upper cover plate and an installation base arranged at an interval with the supporting seat, the auxiliary spring body is installed between the supporting seat and the installation base, and the first air bag is installed between the upper cover plate and the supporting seat.
Preferably, the outer surface of the upper part of the auxiliary spring body is provided with a bearing platform, the bearing platform is connected with the bottom of the supporting seat, and the top of the auxiliary spring body and the inner cavity of the supporting seat form a buffer space.
Preferably, a bayonet is arranged on the inner side of the retaining ring, the sub-opening at the top of the first air bag is embedded in the bayonet of the retaining ring, and the main opening of the first air bag is embedded on a protruding clamping table arranged on the outer side of the supporting seat.
In order to achieve the aim, the invention further provides a railway vehicle which comprises the large-bellow type air spring.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention is provided with two air bags, the first air bag plays a role in vibration reduction, the second air bag plays a role in regulation, the appearance of the first air bag can be regulated by changing the air pressure in the second air bag in real time, so that the performances of the large curved bag type air spring such as vertical rigidity, horizontal rigidity and the like can be regulated in real time, namely the vibration performance of the vehicle can be regulated in real time, and the stability and safety of the vehicle can be ensured when the vehicle runs at different speeds and line conditions. The invention provides a method for the active control technology of the vehicle, and is a great breakthrough of the improvement of the structure and the performance of the air spring product.
Drawings
FIG. 1 is a schematic structural diagram of a conventional big bellows type air spring;
FIG. 2 is a schematic structural diagram of a large bellows air spring according to an embodiment of the invention;
FIG. 3 is a schematic structural view of an air intake nozzle according to an embodiment of the present invention;
FIG. 4 is a block diagram illustrating the control of the automatic inflation/deflation device according to the embodiment of the present invention;
FIG. 5 is a schematic view of the second air bag of the large bellows air spring according to the embodiment of the present invention after the pressure inside the second air bag is changed.
In the figure, the air inlet nozzle comprises an upper cover plate 1, an upper cover plate 2, a retaining ring 201, a limiting member 3, an auxiliary spring 301, an auxiliary spring body 302, a supporting seat 303, an installation base 4, an air bag 401, a first air bag 402, a second air bag 5, an air inlet nozzle 501, an air inlet nozzle body 502, a shutoff valve 6, a buffer space 701, a controller 702, a pressure sensor 703, an electromagnetic valve 704 and a compressor.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The structure of the existing big-curved-bag type air spring is fixed, and the vertical rigidity and the horizontal rigidity of the existing big-curved-bag type air spring are determined immediately and cannot be adjusted. In order to ensure the running stability and safety of the vehicle, when the running speed and the line condition are different, the performance of the air spring is changed.
In order to meet the requirements, the invention provides a large curved bag type air spring which comprises an upper cover plate, a retaining ring, a limiting piece, a supporting seat, an installation base, a first air bag, a second air bag and an auxiliary spring, wherein the limiting piece, the supporting seat, the installation base, the first air bag, the second air bag and the auxiliary spring are arranged below the outer side of the retaining ring, the second air bag is arranged in a space formed by the retaining ring, the limiting piece and the upper portion of the first air bag, the first air bag plays a role in vibration reduction, and the second air bag plays a role in adjustment. The volume of the second air bag is changed by changing the air pressure in the second air bag, so that the appearance of the first air bag is influenced, and the performance of the air spring is changed after the appearance of the first air bag is changed. Specifically, the larger the volume of the second airbag, the smaller the vertical stiffness and the larger the horizontal stiffness of the first airbag. When the running speed and the line condition change, the running state of the whole vehicle changes, and how to adjust the appearance of the first air bag according to the second air bag so as to adjust the performance of the air spring in real time needs to be adjusted according to specific actual conditions.
The air spring with large bellows according to the present invention will be described in detail with reference to specific examples.
Example 1:
referring to fig. 2, a big bellows type air spring includes:
an upper cover plate 1;
the retaining ring 2 is arranged on the lower surface of the upper cover plate 1, a limiting piece 201 is arranged below the outer side of the retaining ring 2, and the limiting piece 201 and the retaining ring are connected in an integrated or split mode;
the auxiliary spring 3 is arranged at a distance from the upper cover plate 1;
a first air bag 401 installed between the upper cover plate 1 and the auxiliary spring 3, wherein the top of the first air bag 401 is connected with the inner side of the buckle 2;
and the second air bag 402 is arranged in a space formed by the retaining ring 2, the limiting part 201 and the upper part of the first air bag 401, and the second air bag 402 is provided with an air inlet nozzle 5.
Referring to fig. 3, the intake nozzle 5 includes a nozzle body 501 and a shut-off valve 502 provided on the nozzle body 501. When the second air bag is inflated and deflated through the air inlet nozzle, the shut-off valve is opened to enable the second air bag to be communicated with the air inlet nozzle, and after inflation and deflation are completed, the shut-off valve is closed to enable the second air bag to be disconnected from the air inlet nozzle, namely the second air bag is closed.
Specifically, with continued reference to fig. 2, the auxiliary spring 3 includes an auxiliary spring body 301, a support base 302 spaced apart from the upper cover plate 1, and an installation base 303 spaced apart from the support base 302, the auxiliary spring body 301 is installed between the support base 302 and the installation base 303, and the first air bag 401 is installed between the upper cover plate 1 and the support base 302.
Specifically, with reference to fig. 2, the outer surface of the upper portion of the auxiliary spring body 301 is provided with a bearing platform 305, the bearing platform 305 is connected with the bottom of the supporting seat 302, and the top of the auxiliary spring body 301 and the inner cavity of the supporting seat 302 form a buffer space 6.
Specifically, with reference to fig. 2, a bayonet is provided on the inner side of the retaining ring 2, a sub-opening of the top of the first air bag 401 is inserted into the bayonet of the retaining ring 2, and a main opening of the first air bag 401 is inserted into a protruding clamping platform 304 provided on the outer side of the supporting seat 302.
In the large curved bag type air spring, the vertical rigidity, the horizontal rigidity and other performances of the first air bag are adjusted in real time through the second air bag, and when the performances are adjusted, the specific steps are as follows: when the second air bag is inflated, the air inlet nozzle is directly connected with the air source, the shutoff valve is opened, the air inlet nozzle is communicated with the air source, the second air bag is inflated through the air source, the size of the second air bag is increased, the appearance of the first air bag is changed, and after the appearance of the first air bag is changed, the performance of the air spring is changed. When the second air bag is deflated, the shutoff valve is directly opened, the volume of the second air bag is reduced, the influence of the second air bag on the first air bag is reduced, the appearance of the first air bag can be changed, and similarly, the performance of the air spring is changed after the appearance of the first air bag is changed.
Example 2:
with continued reference to fig. 2 and with further reference to fig. 4, a large bellows air spring comprising:
an upper cover plate 1;
the retaining ring 2 is arranged on the lower surface of the upper cover plate 1, a limiting piece 201 is arranged below the outer side of the retaining ring 2, and the limiting piece 201 and the retaining ring are connected in an integrated or split mode;
the auxiliary spring 3 is arranged at a distance from the upper cover plate 1;
a first air bag 401 installed between the upper cover plate 1 and the auxiliary spring 3, wherein the top of the first air bag 401 is connected with the inner side of the buckle 2;
the second air bag 402 is arranged in a space formed by the retaining ring 2, the limiting part 201 and the upper part of the first air bag 401, and the second air bag 402 is provided with an air inlet nozzle 5;
and the automatic inflation and deflation device is used for automatically inflating and deflating the second air bag.
Referring to fig. 2, the intake nozzle 5 includes a nozzle body 501 and a shut-off valve 502 provided on the nozzle body 501. When the second air bag is inflated and deflated through the air inlet nozzle, the shut-off valve is opened to enable the second air bag to be communicated with the air inlet nozzle, and after inflation and deflation are completed, the shut-off valve is closed to enable the second air bag to be disconnected from the air inlet nozzle, namely the second air bag is closed.
Specifically, with continued reference to fig. 2, the auxiliary spring 3 includes an auxiliary spring body 301, a support base 302 spaced apart from the upper cover plate 1, and an installation base 303 spaced apart from the support base 302, the auxiliary spring body 301 is installed between the support base 302 and the installation base 303, and the first air bag 401 is installed between the upper cover plate 1 and the support base 302.
Specifically, with reference to fig. 2, the outer surface of the upper portion of the auxiliary spring body 301 is provided with a bearing platform 305, the bearing platform 305 is connected with the bottom of the supporting seat 302, and the top of the auxiliary spring body 301 and the inner cavity of the supporting seat 302 form a buffer space 6.
Specifically, with reference to fig. 2, a bayonet is provided on the inner side of the retaining ring 2, a sub-opening of the top of the first air bag 401 is inserted into the bayonet of the retaining ring 2, and a main opening of the first air bag 401 is inserted into a protruding clamping platform 304 provided on the outer side of the supporting seat 302.
Specifically, referring to fig. 4, the automatic inflation and deflation device includes an air source communicated with the air intake nozzle 5, a controller 701, a pressure sensor 702 connected with the controller 701, and an electromagnetic valve 703 connected with the controller 901, the pressure sensor 702 is disposed inside the second air bag 402 or communicated with the second air bag, the electromagnetic valve 703 is disposed on the air intake nozzle 5, the electromagnetic valve 703 is disposed outside the shut-off valve 502, and the shut-off valve is connected with the controller.
Specifically, with continued reference to fig. 4, the air supply device includes an air supply and a compressor 704 in communication with the air supply, the compressor 704 is in communication with the intake nozzle 5 through an air line, and the compressor 704 is connected to the controller 701.
In the large curved bag type air spring, the second air bag adjusts the vertical rigidity, the horizontal rigidity and other performances of the first air bag in real time, and during performance adjustment, the second air bag is inflated and deflated through the automatic inflation and deflation device, so that the air pressure in the second air bag is automatically changed, the volume of the second air bag is changed along with the change of the air pressure, and the appearance of the first air bag is influenced. The method comprises the following specific steps: the pressure sensor detects the pressure in the second air bag in real time and transmits a detected pressure signal to the controller, when the second air bag needs to be inflated, the air source is connected with the air inlet nozzle through the compressor and the air pipeline, the controller controls to open the shutoff valve and the electromagnetic valve to communicate the air inlet nozzle with the air pipeline, meanwhile, the controller controls the compressor to start working, gas in the gas source is sent into the second air bag through the gas pipeline and the gas inlet nozzle, the second air bag is inflated to increase the volume of the second air bag so as to change the appearance of the first air bag, the performance of the air spring is changed after the appearance of the first air bag is changed, when the pressure sensor detects that the air pressure in the second air bag meets the required requirement, the detected pressure signal is transmitted to the controller, and the controller controls the shutoff valve and the electromagnetic valve to be closed and controls the compressor to stop working. When needs are to the gassing of second gasbag, shut-off valve and solenoid valve are opened in the control of controller, make suction nozzle and gas line intercommunication, the gas in the second gasbag is got rid of automatically, reduce the volume of second gasbag, make the influence of second gasbag to first gasbag diminish, the appearance of first gasbag can be changed equally, the same is said, the appearance of first gasbag changes the back, the performance of air spring changes promptly, when pressure sensor detects the air pressure in the second gasbag and reaches required requirement, transmit the pressure signal who detects for the controller, controller control shut-off valve and solenoid valve are closed can.
Example 3:
a railway vehicle comprising the large bellows type air spring according to embodiment 1.
Example 4:
a railway vehicle comprises the large-bellow type air spring in the embodiment 2.
To further illustrate the adjustable performance of the air spring with large curved bags according to the present invention, referring to fig. 5, it can be seen from fig. 5 that as the volume of the second air bag increases, the profile of the first air bag changes, the vertical stiffness of the first air bag decreases, and the horizontal stiffness increases. On the contrary, along with the reduction of the volume of the second air bag, the appearance of the first air bag is changed, the vertical rigidity of the first air bag is increased, and the horizontal rigidity is reduced.
In addition, when the structure or the position of the air inlet nozzle is changed, the second air bag can be inflated and deflated, so that the performance of the large curved bag type air spring can be adjusted when the structure or the position of the air inlet nozzle is changed.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are possible within the spirit and scope of the claims.
Claims (7)
1. A big bellow type air spring, characterized by comprising:
an upper cover plate;
the retaining ring is arranged on the lower surface of the upper cover plate;
a limiting piece is arranged below the outer side of the retaining ring;
the auxiliary spring is arranged at intervals with the upper cover plate;
the first air bag is arranged between the upper cover plate and the auxiliary spring, and the top of the first air bag is connected with the inner side of the retaining ring;
the second air bag is arranged in a space formed by the retaining ring, the limiting piece and the upper part of the first air bag; the second air bag is provided with an air inlet nozzle; the suction nozzle comprises a suction nozzle body and a shut-off valve arranged on the suction nozzle body.
2. The big bellow type air spring as claimed in claim 1, further comprising an automatic inflation and deflation device, wherein said automatic inflation and deflation device comprises an air source device communicated with said air inlet nozzle, a controller, a pressure sensor connected with said controller and a solenoid valve connected with said controller, said pressure sensor is arranged in or communicated with said second air cell, said solenoid valve is arranged on said air inlet nozzle, said solenoid valve is arranged outside said shutoff valve, and said shutoff valve is connected with said controller.
3. The large bellows air spring of claim 2 wherein said air supply means comprises an air supply and a compressor in communication with said air supply, said compressor being in communication with said inlet nozzle via an air line, said compressor being connected to said controller.
4. The large bellow type air spring as claimed in claim 1 or 3, wherein said auxiliary spring comprises an auxiliary spring body, a support base spaced apart from said upper cover plate, and a mounting base spaced apart from said support base, said auxiliary spring body being mounted between said support base and said mounting base, said first air bag being mounted between said upper cover plate and said support base.
5. The big bellow type air spring as claimed in claim 4, wherein a bearing platform is provided on the outer surface of the upper portion of said auxiliary spring body, said bearing platform is connected to the bottom of said supporting seat, and the top of said auxiliary spring body and the inner cavity of said supporting seat constitute a buffer space.
6. The large bellow type air spring as claimed in claim 4, wherein a bayonet is formed at an inner side of said retaining ring, a sub-port of a top portion of said first air bag is fitted into said bayonet of said retaining ring, and a female port of said first air bag is fitted into a protruding boss formed at an outer side of said supporting seat.
7. A rail vehicle comprising a large bellows air spring according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923725.0A CN110552991B (en) | 2019-09-27 | 2019-09-27 | Big curved bag formula air spring and rail vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923725.0A CN110552991B (en) | 2019-09-27 | 2019-09-27 | Big curved bag formula air spring and rail vehicle |
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| CN110552991A CN110552991A (en) | 2019-12-10 |
| CN110552991B true CN110552991B (en) | 2021-07-23 |
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| CN201910923725.0A Active CN110552991B (en) | 2019-09-27 | 2019-09-27 | Big curved bag formula air spring and rail vehicle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268090A (en) * | 2020-10-14 | 2021-01-26 | 南京林业大学 | Variable-stiffness air spring and stiffness regulation and control method thereof |
| CN116075653B (en) * | 2022-11-11 | 2024-02-27 | 山东美晨工业集团有限公司 | Rigidity-adjustable air spring and vehicle air suspension system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201436422U (en) * | 2008-12-30 | 2010-04-07 | 青岛四方车辆研究所有限公司 | Flat curve bellow type air spring for subway and railway |
| CN101813152A (en) * | 2009-08-19 | 2010-08-25 | 中国人民解放军海军工程大学 | Intelligent air bag vibration isolation device |
| WO2016115103A1 (en) * | 2015-01-12 | 2016-07-21 | Firestone Industrial Products Company, Llc | Lateral support elements, gas spring assemblies, suspension systems and methods |
| CN207673769U (en) * | 2017-09-21 | 2018-07-31 | 广东溢康通空气弹簧有限公司 | A kind of bellows composite damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015125365A (en) * | 2013-12-27 | 2015-07-06 | 株式会社ジャパンディスプレイ | Liquid crystal display |
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2019
- 2019-09-27 CN CN201910923725.0A patent/CN110552991B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201436422U (en) * | 2008-12-30 | 2010-04-07 | 青岛四方车辆研究所有限公司 | Flat curve bellow type air spring for subway and railway |
| CN101813152A (en) * | 2009-08-19 | 2010-08-25 | 中国人民解放军海军工程大学 | Intelligent air bag vibration isolation device |
| WO2016115103A1 (en) * | 2015-01-12 | 2016-07-21 | Firestone Industrial Products Company, Llc | Lateral support elements, gas spring assemblies, suspension systems and methods |
| CN207673769U (en) * | 2017-09-21 | 2018-07-31 | 广东溢康通空气弹簧有限公司 | A kind of bellows composite damper |
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| CN110552991A (en) | 2019-12-10 |
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