CN109356955B - Air spring with multilayer additional air chambers for hub-driven electric automobile - Google Patents
Air spring with multilayer additional air chambers for hub-driven electric automobile Download PDFInfo
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- CN109356955B CN109356955B CN201811491523.5A CN201811491523A CN109356955B CN 109356955 B CN109356955 B CN 109356955B CN 201811491523 A CN201811491523 A CN 201811491523A CN 109356955 B CN109356955 B CN 109356955B
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- air chamber
- spring
- air
- damping hole
- switch valve
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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
- 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
- F16F9/0209—Telescopic
- F16F9/0245—Means for adjusting the length of, or for locking, the spring or dampers
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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
- 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
- F16F9/0209—Telescopic
- F16F9/0281—Details
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
Abstract
An air spring with multilayer additional air chambers for a hub-driven electric automobile mainly comprises a main air chamber and an additional air chamber, wherein the main air chamber is of a membrane type flexible rubber air bag structure, and the additional air chamber is of a rigid multilayer structure; the main air chamber and the additional air chamber are connected by a gas pipeline, and a throttling damping hole with adjustable aperture is arranged on the gas pipeline; the throttling damping hole on the gas pipeline has high-precision continuous adjustment capability; the rigid multilayer additional air chamber consists of a plurality of layers of cavities, and different cavities are connected in series through a switch valve; the controller can independently control the throttling damping hole and the switch valve at the same time, and the accurate adjustment of the rigidity and the damping characteristic of the air spring can be realized through the cooperative control of the combination of the inner diameter of the throttling damping hole and the opening and closing state of the switch valve.
Description
Technical Field
The invention belongs to the field of air springs, and particularly relates to an air spring with a plurality of layers of additional air chambers for a hub-driven electric vehicle.
Background
With the development of the automobile industry, the requirements of people on the comfort of vehicles are higher and higher. The spring serves as a main damping device for the vehicle suspension and plays an important role in improving comfort. The traditional spiral spring has the advantages of simple structure, low cost, easy manufacture, durability, reliability and the like, and is widely applied to passive suspensions. However, the stiffness of the coil spring has linear characteristics and non-adjustability, so that the influence on the comfort is limited, and the requirement of the increasingly improved comfort of the vehicle cannot be met. Particularly, for the electric vehicle driven by the in-wheel motor, the inherent comfort of the vehicle is lower than that of other vehicles of the same level due to the installation of the in-wheel motor under the spring, so the electric vehicle driven by the in-wheel motor has stricter requirements obviously difficult to completely meet by common spiral springs for a suspension and a suspension spring.
Compared with the common spiral spring, the air spring has higher economic cost, but the overall performance of the air spring is obviously superior to that of the common spiral spring. The rigidity of the air spring has more ideal nonlinear characteristics, so that the damping stability during strong vibration can be met, the movement of a vehicle body is softer during slight vibration, and the comfort is better. However, the common air spring also has the limitations of single design, incapability of dynamically adjusting the spring characteristics to adapt to different working conditions and the like, and the development of the air spring is limited to a certain extent. In order to pursue higher spring performance and the ability of dynamic adjustment according to different working conditions, it is necessary to provide an air spring with controllable performance.
Disclosure of Invention
The invention aims to provide an air spring with a plurality of layers of additional air chambers, which can be used for a hub-driven electric automobile, has nonlinear characteristics, can adjust the rigidity and damping characteristics in real time according to actual working conditions and can effectively improve the comfort of the automobile, aiming at the limitations of the traditional spiral spring and the air spring.
In order to solve the problems, the invention provides an air spring with a plurality of layers of additional air chambers for a hub-driven electric automobile, which mainly comprises a main air chamber and an additional air chamber, wherein the main air chamber is of a membrane type flexible rubber air bag structure, and the additional air chamber is of a rigid multi-layer structure; the main air chamber and the additional air chamber are connected by a gas pipeline, and a throttling damping hole with adjustable aperture is arranged on the gas pipeline; the controller can simultaneously and independently control the throttling damping hole and the switch valve.
The throttling damping hole in the air spring, which is positioned on the air pipeline, has high-precision continuous adjustment capability, and the numerical value of the inner diameter of the throttling damping hole can be randomly changed within a specific range. The throttling damping hole has a limiting effect on the flowing gas, so that the air spring has an air damping characteristic. The inner diameter of the throttling damping hole is adjusted and controlled by an electric signal of the controller, gas can exchange between the main air chamber and the additional air chamber through the gas pipeline and the throttling damping hole due to the change of the air pressure in the main air chamber when the spring vibrates, and the mass flow rate of the gas in the pipeline can be changed by adjusting the inner diameter of the throttling damping hole in the gas pipeline.
The rigid multilayer additional air chamber of the air spring consists of multilayer cavities, and different cavities are connected in series through a switch valve. The opening and closing of each switch valve are independently controlled by a controller, when the switch valve between the two layers of cavities is in an opening state, the two cavities are communicated with each other, and the volume of the cavities is regarded as a whole; different additional air chamber volumes can be obtained by the combination of the opening and closing states of different switch valves.
The volumes of all layers of cavities in the rigid multi-layer additional air chambers of the air spring are not completely the same, the first layer of cavity directly connected with the air pipeline directly participates in the air exchange with the main air chamber, the first layer of cavity is considered as an initial layer of the additional air chambers participating in the air exchange, in order to ensure that the additional air chambers participate in the initial amount of working air, the volume of the first layer of cavity is set to be larger than the volume of the rest layers of cavities, and the volumes of the rest layers of cavities can be connected into the first layer of cavity through the switch valves, so that the change of the volume of the whole additional air chamber is realized. In order to ensure the adjusting effect of the volume of the additional air chamber, the space of the cavities of the other layers is equal and smaller than the volume of the cavity of the first layer.
The sizes of the gas pipeline, the adjustable flow damping hole and the opening and closing valve hole diameter of the air spring are arranged as follows: the inner diameter of the gas pipeline is larger than that of the switch valve, and the inner diameter of the switch valve is larger than the maximum inner diameter of the adjustable flow damping hole. The arrangement mode of the aperture is to make the adjustment of the inner diameter of the throttling damping hole to mainly affect the gas exchange process in the whole spring, and ensure the effectiveness of performance adjustment.
In the invention, the controller can adjust the air spring in two aspects, which are respectively as follows: changing the inner diameter of the throttle damping hole and changing the combination of the opening and closing states of the switch valve. Firstly, the main air chamber of the air spring is a bearing part, the air pressure in the main air chamber is changed due to the stretching and the compression of the spring, the air pressure difference is generated between the main air chamber and the additional air chamber due to the change of the air pressure in the main air chamber, the air in the air spring flows between the main air chamber and the additional air chamber through an air pipeline and a throttling damping hole under the driving of the air pressure difference, and when the air passes through a tiny throttling damping hole, the throttling damping hole has a limiting effect on the flowing air, so that the spring has obvious air damping characteristics; in a certain aperture range, the smaller the inner diameter of the throttling damping hole is, the larger the limiting effect on gas is, and the more obvious the damping characteristic of the spring is; the inner diameter of the throttling damping hole can be accurately changed through the controller, so that air damping control of the spring can be achieved, and the rigidity characteristic of the spring can be changed to a certain extent due to the fact that the change of the hole diameter also has certain influence on the compressibility of the internal air. Secondly, although the multilayer additional air chamber of the air spring is not a bearing part, the air stored in the multilayer additional air chamber of the air spring can still enter the main air chamber through the air pipeline and the throttling damping hole to participate in the stretching and compressing movement of the spring; therefore, the air quantity of the air spring with the multilayer additional air chambers to work comprises not only the air in the main air chamber but also the air in the multilayer additional air chambers; under the condition that basic parameters of the main air chamber are not changed, the larger the volume of gas participating in compression is, the smaller the rigidity of the spring is; the number of layers of cavities participating in work in the additional air chamber can be changed by changing the opening and closing state combination of the switch valve through the controller, namely, the amount of the air participating in work is changed, and further, the rigidity of the spring is changed. Therefore, the controller can realize the accurate adjustment of the rigidity and the damping characteristic of the air spring through the cooperative control of the combination of the inner diameter of the throttling damping hole and the opening and closing state of the switch valve.
The controller of the air spring can keep the inner diameter of the throttling damping hole within a specific range under a general condition, but under special requirements, the controller can realize the complete closing of the throttling damping hole, and at the moment, the air spring is converted into a common passive air spring to work; particularly, when the controller fails, the throttling damping hole is automatically and completely closed in order to ensure the stability of the performance of the air spring after the performance control function of the air spring is completely lost.
Compared with the traditional spiral spring and the common air spring, the invention has the beneficial effects that: 1. through the introduction of the multiple layers of additional air chambers, the air quantity participating in the work of the spring is more under the condition that the basic parameters of the main air chamber are not changed, so that the rigidity of the balance position of the spring is further reduced, and the nonlinear curve of the overall rigidity of the air spring is more ideal; 2. through the arrangement of the throttling damping hole, the spring has the air damping characteristic, and the control of the spring damping can be realized through the accurate adjustment of the inner diameter of the throttling damping hole; 3. the opening and closing states of the switch valves among the cavities of the multilayer additional air chambers are combined, so that the air quantity participating in the work of the spring in the additional air chamber can be changed, and further the rigidity and the damping characteristic of the spring can be adjusted; 4. the mass flow rate of air in the gas pipeline can be changed by adjusting the inner diameter of the throttling damping hole through the controller, the air quantity participating in work in the additional air chamber can be changed by adjusting the opening and closing state combination of the switch valve through the controller, the two aspects are coordinately controlled, and the spring stiffness and the damping characteristic can be adjusted more accurately; 5. the air spring can be converted into a common passive air spring by controlling the throttling damping hole to be completely closed, and the throttling damping hole can be automatically and completely closed when the controller fails, so that the stability of the air spring is ensured.
Drawings
FIG. 1 is a schematic view of the structure of a single air spring with multiple layers of additional air chambers.
Illustration of the drawings:
1. a spring cover plate; 2. a main air chamber; 3. adjustable flow damping orifices; 4. a gas conduit; 5. a piston; 6. a plurality of layers of additional air chambers; 7. an on-off valve; 8. and a controller.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a view showing a structure of an air spring with a plurality of additional air chambers, preferably three, for a hub-driven electric vehicle according to the present invention. The air spring mainly comprises a main air chamber 2 and an additional air chamber 6, wherein the main air chamber 2 is of a membrane type flexible rubber air bag structure, and the additional air chamber 6 is of a rigid multilayer structure; the main air chamber 2 and the additional air chamber 6 are connected by a gas pipeline 4, and the gas pipeline 4 is provided with a throttling damping hole 3 with adjustable aperture; the controller 8 can independently control the throttling damping hole 3 and the switch valve 7 at the same time.
In the embodiment, the throttling damping hole 3 on the gas pipeline 4 in the air spring has high-precision continuous adjustment capability, and the numerical value of the inner diameter of the throttling damping hole can be randomly changed within a specific range. The throttling damping hole 3 has a limiting effect on gas flowing through, so that the air spring has an air damping characteristic. The inner diameter adjustment of the throttling damping hole 3 is controlled by an electric signal of the controller 8, when the spring vibrates, due to the change of the air pressure in the main air chamber 2, air can exchange between the main air chamber 2 and the additional air chamber 6 through the air pipeline 4 and the throttling damping hole 3, and the mass flow rate of the flowing air can be changed by adjusting the inner diameter of the throttling damping hole 3.
In this embodiment, the rigid multi-layer additional air chamber 6 of the air spring is composed of multi-layer cavities, and the different cavities are connected in series through the switch valve 7. The opening and closing of each switch valve are independently controlled by the controller 8, when the switch valve between the two layers of cavities is in an opening state, the two cavities are communicated with each other, and the volume of the cavities is regarded as a whole; different additional air chamber volumes can be obtained by the combination of the opening and closing states of different switch valves.
In this embodiment, the volumes of the cavities in the rigid multilayer additional air chamber 6 of the air spring are not completely the same, the first layer of cavity directly connected with the air pipeline 4 directly participates in the air exchange with the main air chamber 2, and is regarded as the initial layer of the additional air chamber 6 participating in the air exchange, in order to ensure the initial amount of the working air participated in by the additional air chamber 6, the volume of the first layer of cavity is set to be larger than the volume of the cavities in the other layers, and the volumes of the cavities in the other layers can be connected into the first layer of cavity through the switch valve 7, so that the change of the volume of the whole additional air chamber is realized. In order to ensure the adjusting effect of the volume of the additional air chamber, the space of the cavities of the other layers is equal and smaller than the volume of the cavity of the first layer.
In this embodiment, the sizes of the gas pipeline 4, the adjustable flow damping hole 3 and the aperture of the switch valve 7 of the air spring are arranged as follows: the inner diameter of the gas pipe 4 is larger than the inner diameter of the on-off valve 7, and the inner diameter of the on-off valve 7 is larger than the maximum inner diameter of the adjustable flow orifice 3. The arrangement mode of the aperture is to make the adjustment of the inner diameter of the throttling damping hole to mainly affect the gas exchange process in the whole spring, and ensure the effectiveness of performance adjustment.
In this embodiment, the controller 8 may adjust the air spring in two aspects, which are: changing the inner diameter of the orifice 3 and changing the combination of the open and close states of the on-off valve 7. Firstly, the main air chamber 2 of the air spring is a bearing part and bears the force applied by the upper end spring cover plate 1 and the lower end piston 5, so that the spring generates stretching and compressing motion; the air pressure in the main air chamber 2 is changed due to the stretching and the compression of the spring, the air pressure difference is generated between the main air chamber 2 and the additional air chamber 6 due to the change of the air pressure in the main air chamber 2, the air in the air spring flows between the main air chamber 2 and the additional air chamber 6 through the air pipeline 4 and the throttling damping holes 3 under the driving of the air pressure difference, and when the air passes through the fine throttling damping holes 3, the throttling damping holes 3 have a limiting effect on the flowing air, so that the spring has obvious air damping characteristics; in a certain aperture range, the smaller the inner diameter of the throttling damping hole 3 is, the larger the gas limiting effect is, and the more obvious the spring damping characteristic is; the inner diameter of the throttling damping hole 3 can be accurately changed through the controller 8, so that air damping control of the spring can be achieved, and the change of the hole diameter also has certain influence on the compressibility of the internal air, so that the rigidity characteristic of the spring can be changed to a certain degree. Secondly, although the multilayer additional air chamber 6 of the air spring is not a bearing part, the air stored in the multilayer additional air chamber can still enter the main air chamber through the air pipeline 4 and the throttling damping hole 3 to participate in the stretching and compressing movement of the spring; therefore, the air spring with the multilayer additional air chambers can work by the air quantity not only comprising the air in the main air chamber 2 but also comprising the air in the multilayer additional air chambers 6; under the condition that the basic parameters of the main air chamber 2 are not changed, the larger the volume of the gas participating in compression is, the smaller the rigidity of the spring is; the number of layers of cavities participating in work in the additional air chamber can be changed by changing the opening and closing state combination of the switch valve through the controller 8, namely, the amount of the air participating in work is changed, and further, the rigidity of the spring is changed. Therefore, the controller 8 can realize the accurate adjustment of the rigidity and the damping characteristic of the air spring through the cooperative control of the combination of the inner diameter of the throttling damping hole and the opening and closing state of the switch valve.
In this embodiment, the controller 8 of the air spring can keep the inner diameter of the throttling damping hole 3 within a specific range under a general condition, but under a special requirement, the controller 8 can realize the complete closing of the throttling damping hole 3, and at this time, the air spring is changed into a common passive air spring to work; in particular, when the controller 8 fails and the performance control function of the air spring is completely lost, the throttling damping hole 3 is automatically and completely closed in order to ensure the stability of the performance of the air spring.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.
Claims (1)
1. The utility model provides an air spring of taking additional air chamber of multilayer for wheel hub drive electric automobile which characterized in that: the air spring consists of a main air chamber (2) and an additional air chamber (6), wherein the main air chamber (2) is of a membrane type flexible rubber air bag structure, and the additional air chamber (6) is of a rigid multilayer structure; the main air chamber (2) is connected with the additional air chamber (6) through a gas pipeline (4), and a throttling damping hole (3) with an adjustable aperture is formed in the gas pipeline (4); the controller (8) can independently control the throttling damping hole (3) and the switch valve (7) at the same time;
the volumes of all layers of cavities of the rigid multilayer additional air chamber (6) are not completely the same, wherein the volume of the first layer of cavities directly connected with the air pipeline (4) is the largest, and the volumes of other layers of cavities are equal but smaller than the volume of the first layer of cavities;
the size that gas pipeline (4), adjustable stream damping hole (3), ooff valve (7) aperture set up arranges for: the inner diameter of the gas pipeline (4) is larger than that of the switch valve (7), and the inner diameter of the switch valve (7) is larger than the maximum inner diameter of the adjustable flow damping hole (3);
the inner diameter of the throttling damping hole (3) on the gas pipeline (4) can be changed according to requirements;
the rigid multilayer additional air chamber (6) consists of multilayer cavities, and different cavities are connected in series through a switch valve (7); the opening and closing of each switch valve (7) can be controlled; different opening and closing states of the switch valves (7) are combined, so that different volumes of the additional air chambers (6) can be obtained;
the controller (8) realizes the change of the rigidity and the damping of the air spring by adjusting the aperture of the throttling damping hole (3) and combining the opening and closing states of the switch valve (7);
the controller (8) adjusts the air spring in two aspects, which are respectively as follows: the combination of changing the inner diameter of the throttling damping hole (3) and changing the opening and closing state of the switch valve (7) is as follows: firstly, a main air chamber (2) of the air spring is a bearing part, and the spring generates stretching and compressing motion under the action of the force exerted by an upper end spring cover plate (1) and a lower end piston (5); gas flows between the main air chamber (2) and the additional air chamber (6) through the gas pipeline (4) and the throttling damping hole (3), and the throttling damping hole (3) generates air damping characteristics for limiting the flowing gas; the inner diameter of the throttling damping hole (3) is changed through a controller (8), so that the damping control of the spring is realized; the change of the aperture also influences the compressibility of the internal air, and the change of the stiffness characteristic of the spring is realized; secondly, the controller (8) utilizes the opening and closing state combination of the switch valve to adjust the number of layers of the cavities participating in the work, and the adjustment of the rigidity of the spring is realized by changing the amount of gas participating in the work;
under the control of the controller (8), the throttling damping hole (3) can be completely closed; when the controller (8) fails, the throttling damping hole (3) is automatically and completely closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491523.5A CN109356955B (en) | 2018-12-07 | 2018-12-07 | Air spring with multilayer additional air chambers for hub-driven electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491523.5A CN109356955B (en) | 2018-12-07 | 2018-12-07 | Air spring with multilayer additional air chambers for hub-driven electric automobile |
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| Publication Number | Publication Date |
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| CN109356955A CN109356955A (en) | 2019-02-19 |
| CN109356955B true CN109356955B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811491523.5A Active CN109356955B (en) | 2018-12-07 | 2018-12-07 | Air spring with multilayer additional air chambers for hub-driven electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113565923B (en) * | 2021-07-26 | 2023-06-16 | 长沙理工大学 | Broadband vibration absorber and control method thereof |
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|---|---|---|---|---|
| CN201891785U (en) * | 2010-11-19 | 2011-07-06 | 江苏大学 | Multi-cavity additional air chamber with variable volume of air spring |
| CN202612461U (en) * | 2012-04-23 | 2012-12-19 | 江苏大学 | Air spring with additional air chamber |
| JP2014211202A (en) * | 2013-04-19 | 2014-11-13 | 株式会社エーエス | Apparatus for base isolation mechanism |
| CN205350182U (en) * | 2015-10-21 | 2016-06-29 | 中国电子工程设计院 | Variable appended gas chamber air spring structure |
| RU166886U1 (en) * | 2016-02-16 | 2016-12-10 | федеральное государственное унитарное предприятие "Федеральный научно-производственный центр "Прогресс" (ФГУП "ФНПЦ "Прогресс") | PNEUMATIC VIBRATION ISOLATING SUPPORT |
| CN108266486A (en) * | 2017-12-18 | 2018-07-10 | 宁波中倚机电科技发展有限公司 | Volume has the adjustable air spring additional air chamber of grade |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5721596B2 (en) * | 2011-09-22 | 2015-05-20 | 株式会社Ｉｈｉインフラシステム | Seismic isolation device |
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2018
- 2018-12-07 CN CN201811491523.5A patent/CN109356955B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201891785U (en) * | 2010-11-19 | 2011-07-06 | 江苏大学 | Multi-cavity additional air chamber with variable volume of air spring |
| CN202612461U (en) * | 2012-04-23 | 2012-12-19 | 江苏大学 | Air spring with additional air chamber |
| JP2014211202A (en) * | 2013-04-19 | 2014-11-13 | 株式会社エーエス | Apparatus for base isolation mechanism |
| CN205350182U (en) * | 2015-10-21 | 2016-06-29 | 中国电子工程设计院 | Variable appended gas chamber air spring structure |
| RU166886U1 (en) * | 2016-02-16 | 2016-12-10 | федеральное государственное унитарное предприятие "Федеральный научно-производственный центр "Прогресс" (ФГУП "ФНПЦ "Прогресс") | PNEUMATIC VIBRATION ISOLATING SUPPORT |
| CN108266486A (en) * | 2017-12-18 | 2018-07-10 | 宁波中倚机电科技发展有限公司 | Volume has the adjustable air spring additional air chamber of grade |
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| CN109356955A (en) | 2019-02-19 |
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