CN203756838U - Air spring of passive air suspension for vehicles - Google Patents
Air spring of passive air suspension for vehicles Download PDFInfo
- Publication number
- CN203756838U CN203756838U CN201320867953.9U CN201320867953U CN203756838U CN 203756838 U CN203756838 U CN 203756838U CN 201320867953 U CN201320867953 U CN 201320867953U CN 203756838 U CN203756838 U CN 203756838U
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- CN
- China
- Prior art keywords
- pneumatic spring
- air chamber
- air
- dividing plate
- throttle orifice
- 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.)
- Expired - Lifetime
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- 239000000725 suspension Substances 0.000 title claims abstract description 19
- 238000013016 damping Methods 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract 3
- 239000000969 carrier Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The utility model provides an air spring of a passive air suspension for vehicles. The air spring is provided with an air spring air chamber which comprises a rubber air bag air chamber and a piston air chamber, a partition plate is arranged between the rubber air bag air chamber and the piston air chamber, and one or more throttling holes are formed in the partition plate. Through adjusting the hole diameters of the throttling holes in the piston partition plate, the damping of the air spring and the dynamic rigidity influencing the air spring are adjusted. The air spring can be widely applied to various vehicles, is particularly applied to coaches and automobile carriers and is also applied to special vehicles and passive air suspension systems of rail transit vehicles.
Description
Technical field
The utility model relates to vehicle passive type airsuspension system technical field, and specifically, the utility model relates to the pneumatic spring of a kind of vehicle passive type air suspension.
Background technique
Since the eighties in 20th century, main developed country is in order to reduce the destruction of vehicle to road and smoothness, the travelling comfort of increase vehicle in the world, and control stability and Security, start universal air suspension.Pneumatic spring is the core component of air suspension, and it is the reaction force that utilizes rubber pneumatic bag internal compression air, as a kind of elastic element of elastic restoring force, has the superior performance characteristic such as the rigidity of change, highly adjustable, the life-span is long.In the pneumatic spring technology of development, in order further to improve the stiffness tuning characteristic of pneumatic spring, become stiffness curve and can carry out according to actual needs ideal design, make it near load rating, there is lower rigidity value, and make air suspension obtain lower natural frequency, thereby it is soft, comfortable to work.
Fig. 1 is the internal structure schematic diagram of the pneumatic spring of a kind of vehicle passive type air suspension of the prior art; Fig. 2 is the internal structure schematic diagram of the pneumatic spring of another kind of vehicle passive type air suspension of the prior art.The pneumatic spring generally using at present mainly contains two types:
One, pneumatic spring air chamber is exactly rubber pneumatic bag air chamber 1, is not communicated with piston air chamber 2(Fig. 1);
Two, pneumatic spring air chamber is that rubber pneumatic bag air chamber 1 connects with piston air chamber 2, and 2 air chambers volume is added (Fig. 2).
For same rubber pneumatic bag, the first situation air spring rigidity is higher, and spring is harder, affects the travelling comfort of vehicle; The rigidity of the second situation pneumatic spring is lower, and spring is softer, and anti-roll stiffness is lower, and vehicle side-sway phenomenon is under steam serious, easily makes people produce dizzy and uncomfortable.Cause the one of the main reasons of these phenomenons to be exactly: the quiet rigidity of pneumatic spring cannot be according to the Rational Matching of Parameters of vehicle, and dynamic stiffness can not regulate along with dynamic load.
Model utility content
Technical problem to be solved in the utility model is to provide the pneumatic spring of a kind of vehicle passive type air suspension, can regulate the damping of pneumatic spring, changes the dynamic stiffness that regulates pneumatic spring with dynamic load.
For solving the problems of the technologies described above, the utility model provides the pneumatic spring of a kind of vehicle passive type air suspension, there is pneumatic spring air chamber, described pneumatic spring air chamber comprises rubber pneumatic bag air chamber and piston air chamber, between described rubber pneumatic bag air chamber and described piston air chamber, there is dividing plate, on described dividing plate, be provided with one or more throttle orifices.
Alternatively, described dividing plate is circular, and its diameter dimension is 80～200mm.
Alternatively, the throttle orifice number arranging on described dividing plate is 1～20.
Alternatively, the position of described throttle orifice is centered by the center of circle of described dividing plate, and distribution is centrosymmetric.
Alternatively, the diameter dimension of described throttle orifice is 5～40mm.
Alternatively, described throttle orifice be shaped as regular shape or irregularly shaped.
Alternatively, described regular shape comprises circle, ellipse, square, triangle.
Compared with prior art, the utlity model has following advantage:
Pneumatic spring of the present utility model passes through to adjust the aperture of throttle orifice on piston dividing plate, thereby regulates the damping of pneumatic spring, affects the dynamic stiffness of pneumatic spring.
This pneumatic spring cost is lower, simple and reliable, is widely used in various vehicles, is particularly useful for big bus, automobile carrier, is also applicable to special vehicle, and the passive type airsuspension system of rail traffic vehicles.
Brief description of the drawings
The above and other feature of the present utility model, character and advantage are by by becoming more obvious below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the internal structure schematic diagram of the pneumatic spring of a kind of vehicle passive type air suspension of the prior art;
Fig. 2 is the internal structure schematic diagram of the pneumatic spring of another kind of vehicle passive type air suspension of the prior art;
Fig. 3 is the internal structure schematic diagram of the pneumatic spring of an embodiment's of the utility model vehicle passive type air suspension;
Fig. 4 is that vehicle embodiment illustrated in fig. 3 uses the pneumatic spring of passive type air suspension along the sectional structure chart of A-A line.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth in the following description more details so that fully understand the utility model; but the utility model obviously can be implemented with the multiple alternate manner that is different from this description; those skilled in the art can do similar popularization, deduction according to practical situations without prejudice to the utility model intension in the situation that, therefore should be with the content constraints of this specific embodiment protection domain of the present utility model.
Fig. 3 is the internal structure schematic diagram of the pneumatic spring of an embodiment's of the utility model vehicle passive type air suspension; Fig. 4 is that vehicle embodiment illustrated in fig. 3 uses the pneumatic spring of passive type air suspension along the sectional structure chart of A-A line.It should be noted that these accompanying drawings are all only as example, it is not to draw according to the condition of equal proportion, and should be using this as the protection domain of the utility model actual requirement is construed as limiting.
Come together to understand incorporated by reference to Fig. 3 and Fig. 4, this pneumatic spring has pneumatic spring air chamber, and this pneumatic spring air chamber comprises rubber pneumatic bag air chamber 1 and piston air chamber 2.Wherein, between rubber pneumatic bag air chamber 1 and piston air chamber 2, there is dividing plate 4, on dividing plate 4, be provided with one or more throttle orifices 5.
In the present embodiment, dividing plate 4 is generally circle, when the diameter dimension of dividing plate 4 is between Ф 80～Ф 200mm time, can on dividing plate 4, evenly be set to 1～20 and diameter dimension and be the throttle orifice 5 of Ф 5～Ф 40mm for best.More preferably, the diameter dimension of this throttle orifice 5 can be 5mm, 25mm or 40mm etc.The position of this throttle orifice 5 can be centered by the center of circle of dividing plate 4, and distribution is centrosymmetric.In addition, the shape of this throttle orifice 5 is preferably circular, can be also regular shapes such as oval, square, triangle or other are irregularly shaped.
Pneumatic spring is in vibration processes, because the effect of pressure difference makes gas 6(in rubber pneumatic bag air chamber 1 and piston air chamber 2 as air) by the throttle orifice 5 on dividing plate 4, between two air chambers 1,2, flow.Gas 6 in the time flowing through throttle orifice 5, the impact of multiple factors such as shape and size of poor, the flow velocity of being under pressure, throttle orifice 5.Under same vibration frequency, hour, more easily there is mobile being jammed in gas 6, so the dynamic stiffness of pneumatic spring is also relatively high at the aperture place of throttle orifice 5 in the aperture of throttle orifice 5; Be obstructed in the aperture place of the throttle orifice 5 that gas 6 is larger in aperture so that the needed vibration frequency of being jammed is higher, and therefore to increase corresponding useful effect frequency also higher in the aperture of throttle orifice 5.In the time that throttle orifice 5 is enough large, throttle orifice 5 does not have inhibition substantially to flowed through gas 6, now the dynamic stiffness minimum of pneumatic spring.By adjusting the aperture of the throttle orifice 5 on dividing plate 4, the damping of adjustable air spring.
In sum, pneumatic spring of the present utility model is by the aperture (diameter dimension) of throttle orifice on regulating piston dividing plate, thereby the damping of adjustable air spring affects the dynamic stiffness of pneumatic spring.
This pneumatic spring cost is lower, simple and reliable, is widely used in various vehicles, is particularly useful for big bus, automobile carrier, is also applicable to special vehicle, and the passive type airsuspension system of rail traffic vehicles.
Although the utility model with preferred embodiment openly as above, it is not for limiting the utility model, and any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment.Therefore, every content that does not depart from technical solutions of the utility model, any amendment, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, within all falling into the protection domain that the utility model claim defines.
Claims (7)
1. the pneumatic spring of a vehicle use passive type air suspension, there is pneumatic spring air chamber, it is characterized in that, described pneumatic spring air chamber comprises rubber pneumatic bag air chamber (1) and piston air chamber (2), between described rubber pneumatic bag air chamber (1) and described piston air chamber (2), there is dividing plate (4), on described dividing plate (4), be provided with one or more throttle orifices (5).
2. pneumatic spring according to claim 1, is characterized in that, described dividing plate (4) is circular, and its diameter dimension is 80～200mm.
3. pneumatic spring according to claim 2, is characterized in that, upper throttle orifice (5) number arranging of described dividing plate (4) is 1～20.
4. pneumatic spring according to claim 3, is characterized in that, the position of described throttle orifice (5) is centered by the center of circle of described dividing plate (4), and distribution is centrosymmetric.
5. pneumatic spring according to claim 4, is characterized in that, the diameter dimension of described throttle orifice (5) is 5～40mm.
6. pneumatic spring according to claim 4, is characterized in that, described throttle orifice (5) be shaped as regular shape or irregularly shaped.
7. pneumatic spring according to claim 6, is characterized in that, described regular shape comprises circle, ellipse, square, triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867953.9U CN203756838U (en) | 2013-12-26 | 2013-12-26 | Air spring of passive air suspension for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867953.9U CN203756838U (en) | 2013-12-26 | 2013-12-26 | Air spring of passive air suspension for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756838U true CN203756838U (en) | 2014-08-06 |
Family
ID=51252118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867953.9U Expired - Lifetime CN203756838U (en) | 2013-12-26 | 2013-12-26 | Air spring of passive air suspension for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756838U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882910A (en) * | 2017-12-11 | 2018-04-06 | 广东溢康通空气弹簧有限公司 | A kind of driver's cabin diaphragm type air spring with auxiliary chamber |
| CN110878804A (en) * | 2018-09-05 | 2020-03-13 | 郑州宇通客车股份有限公司 | Air spring and vehicle |
| US11338637B2 (en) | 2019-01-28 | 2022-05-24 | Tenneco Automotive Operating Company Inc. | Electro-magnetic damper with air spring |
-
2013
- 2013-12-26 CN CN201320867953.9U patent/CN203756838U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882910A (en) * | 2017-12-11 | 2018-04-06 | 广东溢康通空气弹簧有限公司 | A kind of driver's cabin diaphragm type air spring with auxiliary chamber |
| CN110878804A (en) * | 2018-09-05 | 2020-03-13 | 郑州宇通客车股份有限公司 | Air spring and vehicle |
| CN110878804B (en) * | 2018-09-05 | 2024-02-09 | 宇通客车股份有限公司 | Air spring and vehicle |
| US11338637B2 (en) | 2019-01-28 | 2022-05-24 | Tenneco Automotive Operating Company Inc. | Electro-magnetic damper with air spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |