CN109281978B - Pre-pressing type air spring system - Google Patents
Pre-pressing type air spring system Download PDFInfo
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- CN109281978B CN109281978B CN201811317298.3A CN201811317298A CN109281978B CN 109281978 B CN109281978 B CN 109281978B CN 201811317298 A CN201811317298 A CN 201811317298A CN 109281978 B CN109281978 B CN 109281978B
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- plate
- end plate
- upper cover
- cover plate
- spring system
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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
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a prepressing type air spring system which comprises an upper cover plate, an air bag, an upper end plate and a lower end plate, wherein the periphery of the upper cover plate is connected with the periphery of the upper end plate through the air bag, a low-level hourglass elastic body is connected between the upper end plate and the lower end plate, the bottom of the upper cover plate is provided with a prepressing plate, a plurality of high-level steel springs are arranged between the upper cover plate and the prepressing plate in a pressing mode along the circumferential direction, an air chamber is formed between the air bag and the prepressing plate, and the bottom of the cover plate is further provided. The air spring system has the advantages of simple structure, convenience in installation, low heavy-load vertical rigidity and high comfort and stability.
Description
Technical Field
The invention mainly relates to a buffering and damping technology, in particular to a prepressing type air spring system.
Background
Air spring assemblies are used in a wide variety of applications, such as railway cars, heavy-duty vehicles, and other applications where cushioning or shock absorption is important. Typically, such spring assemblies include an elastomeric body positioned between a pair of rigid end plates. The elastomer is made of rubber and is compressed by a load acting on the spring assembly. In the prior art, the hourglass type auxiliary spring has the characteristics of low vertical stiffness and transverse stiffness under a small load, but under a large load, the hourglass type auxiliary spring has strong nonlinear characteristics, so that the vertical stiffness under the large load is very high. On the other hand, in some heavy-duty train projects, particularly double-layer motor train unit trains, the auxiliary spring is required to have small vertical rigidity and large dynamic displacement under large load, so that the conventional hourglass type auxiliary spring cannot meet the requirement.
Disclosure of Invention
The prepressing type air spring system is simple in structure, convenient to install, low in heavy-load vertical rigidity, comfortable and high in stability.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a pre-compaction formula air spring system, includes upper cover plate, gasbag, upper end plate and lower end plate, the periphery of upper cover plate is passed through the gasbag is connected with the periphery of upper end plate, be connected with low level hourglass elastomer between upper end plate and the lower end plate, pre-compaction board has been installed to the upper cover plate bottom, it is equipped with a plurality of high-order steel springs to press along the circumferential direction between upper cover plate and the pre-compaction board, form the air chamber between gasbag and the pre-compaction board, the upper cover plate bottom still is equipped with the communicating expansion chamber of air chamber.
As a further improvement of the above technical solution:
the bottom of the upper cover plate is provided with a plurality of limiting columns along the circumferential direction, the top of the prepressing plate is provided with a plurality of limiting sleeves along the circumferential direction, each limiting column is sleeved with the corresponding limiting sleeve, and each high-position steel spring is sleeved on the peripheries of the limiting columns and the limiting sleeves at the corresponding positions.
Spacing toe portion is equipped with the anticreep platform that is used for preventing the stop collar and deviates from, the anticreep platform passes through bolt and spacing post fastening connection.
And a limiting table is arranged at the periphery of the high-position steel spring at the bottom of the upper cover plate.
And the top of the upper end plate is provided with a wear plate which is in contact with the bottom of the prepressing plate in an air leakage state.
The top of the upper end plate is provided with a structure with rib plates and groove bodies arranged alternately, and the abrasion plate is fixedly connected with the rib plates through bolts.
The low-position hourglass elastomer is connected with the upper end plate and the lower end plate in a vulcanization mode, and a conical cavity is formed in the center of the low-position hourglass elastomer.
The bottom of the outer peripheral surface of the upper cover plate is provided with a retaining ring, one end of the air bag is buckled with the retaining ring, and the other end of the air bag is connected with the upper end plate in a vulcanization mode.
Compared with the prior art, the invention has the advantages that:
the prepressing type air spring system comprises an upper cover plate, an air bag, an upper end plate and a lower end plate, wherein the periphery of the upper cover plate is connected with the periphery of the upper end plate through the air bag, a low-level hourglass elastic body is connected between the upper end plate and the lower end plate, the bottom of the upper cover plate is provided with a prepressing plate, a plurality of high-level steel springs are arranged between the upper cover plate and the prepressing plate in a pressing mode along the circumferential direction, an air chamber is formed between the air bag and the prepressing plate, and the bottom of the upper cover plate is further provided with. In the structure, through the low-position hourglass elastomer and in the circumferential direction, a plurality of high-position steel springs are arranged and a series structure is formed, the structure is simple, the installation is convenient, in addition, the vertical rigidity is jointly provided by the high-position steel springs and the low-position hourglass elastomer, the damping force is provided by the low-position hourglass elastomer, the nonlinearity is reduced, the dynamic displacement capacity is improved, the vertical rigidity of the auxiliary spring under the heavy load can be greatly reduced through the series structure with the pre-pressure, the comfort under the heavy load is improved, the expansion cavity reduces the vertical rigidity of the system inflation, and the comfort of the running state is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The reference numerals in the figures denote:
1. an upper cover plate; 11. a limiting column; 111. an anti-drop platform; 12. a limiting table; 13. a retaining ring; 14. expanding the cavity; 2. an air bag; 3. an upper end plate; 31. a wear plate; 4. a lower end plate; 5. a low-level hourglass elastomer; 51. a tapered cavity; 6. pre-pressing a plate; 61. a limiting sleeve; 7. a high-position steel spring; 8. an air chamber.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1, an embodiment of a pre-compression type air spring system according to the present invention includes an upper cover plate 1, an air bag 2, an upper end plate 3, and a lower end plate 4, where the periphery of the upper cover plate 1 is connected to the periphery of the upper end plate 3 through the air bag 2, a low-level hourglass elastic body 5 is connected between the upper end plate 3 and the lower end plate 4, a pre-compression plate 6 is installed at the bottom of the upper cover plate 1, a plurality of high-level steel springs 7 are pressed between the upper cover plate 1 and the pre-compression plate 6 along a circumferential direction, an air chamber 8 is formed between the air bag 2 and the pre-compression plate 6, and an expansion chamber 14 communicated with the. In the structure, through low-position hourglass elastomer 5 and set up a plurality of high-position steel springs 7 and form the series structure in the circumferential direction, its simple structure, simple to operate, and, vertical rigidity is provided by high-position steel spring 7 and low-position hourglass elastomer 5, and the damping force is provided by low-position hourglass elastomer 5, has reduced the nonlinearity, has improved dynamic displacement ability, can greatly reduce auxiliary spring's vertical rigidity under the heavy load through this kind of series structure of taking pre-compression, the travelling comfort under the heavy load has been improved, expand chamber 14 and reduced the vertical rigidity of system's inflation, the travelling comfort of running state has been improved.
In this embodiment, the bottom of the upper cover plate 1 is provided with a plurality of limiting posts 11 along the circumferential direction, the top of the pre-pressing plate 6 is provided with a plurality of limiting sleeves 61 along the circumferential direction, each limiting post 11 is sleeved with a corresponding limiting sleeve 61, and each high-position steel spring 7 is sleeved on the peripheries of the limiting post 11 and the limiting sleeve 61 at the corresponding position. This spacing post 11 and stop collar 61's cooperation is used, can guarantee upper cover plate 1's upper and lower displacement on the one hand, and on the other hand can retrain spacingly to lateral displacement, prevents horizontal unstability.
In this embodiment, the bottom of the limiting column 11 is provided with an anti-falling platform 111 for preventing the limiting sleeve 61 from falling off, and the anti-falling platform 111 is fastened and connected with the limiting column 11 through a bolt. This anticreep platform 111 is used for preventing to deviate from the spacing post 11 bottom when stop collar 61 descends, has improved overall structure's stability.
In this embodiment, the bottom of the upper cover plate 1 is provided with a limiting table 12 at the periphery of the high-position steel spring 7. The limiting table 12 is used for limiting the high-position steel spring 7 in a transverse restraining mode at the periphery of the high-position steel spring, and transverse instability is prevented.
In this embodiment, the top of the upper end plate 3 is provided with a wear plate 31 which contacts the bottom of the pre-press plate 6 in the deflated state. In the air leakage state, the abrasion plate 31 is in contact with the bottom of the prepressing plate 6, namely a soft stop is formed in the vertical direction, and the prepressing plate 6 is prevented from directly touching the upper end plate 3.
In this embodiment, the top of the upper end plate 3 is provided with a rib plate and groove body alternate structure, and the wearing plate 31 is fixedly connected with the rib plate through a bolt. In this structure, the rib plate is used to form an installation foundation of the wear plate 31 and to ensure the structural strength of the upper end plate 3, and the groove structure enables the weight reduction of the upper end plate 3.
In this embodiment, the low hourglass elastic body 5 is vulcanized and connected with the upper end plate 3 and the lower end plate 4, and the center of the low hourglass elastic body 5 is provided with a conical cavity 51. The conical cavity 51 facilitates demolding after vulcanization on the one hand and also reduces the strain of the low-level hourglass elastomer 5 on the other hand.
In this embodiment, the bottom of the outer peripheral surface of the upper cover plate 1 is provided with a retaining ring 13, one end of the airbag 2 is fastened with the retaining ring 13, and the other end is connected with the upper end plate 3 in a vulcanization manner. In the structure, the small opening of the air bag 2 is connected with the upper end plate 3 in a vulcanization mode, so that the abrasion condition of the small opening of the air bag 2 under heavy load is reduced, and the service lives of the air bag 2 and the air spring can be prolonged.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (7)
1. The utility model provides a pre-compaction formula air spring system, includes upper cover plate (1), gasbag (2), upper end plate (3) and lower end plate (4), its characterized in that: the periphery of the upper cover plate (1) is connected with the periphery of the upper end plate (3) through the air bag (2), a low-position hourglass elastic body (5) is connected between the upper end plate (3) and the lower end plate (4), a prepressing plate (6) is arranged at the bottom of the upper cover plate (1), a plurality of high-position steel springs (7) are arranged between the upper cover plate (1) and the prepressing plate (6) in a pressing mode along the circumferential direction, an air chamber (8) is formed between the air bag (2) and the prepressing plate (6), and an expansion chamber (14) communicated with the air chamber (8) is further arranged at the bottom of the upper cover plate (1); the low-position hourglass elastic body (5) and a plurality of high-position steel springs (7) arranged in the circumferential direction form a series structure;
the bottom of the upper cover plate (1) is provided with a plurality of limiting columns (11) along the circumferential direction, the top of the prepressing plate (6) is provided with a plurality of limiting sleeves (61) along the circumferential direction, each limiting column (11) is mutually sleeved with the corresponding limiting sleeve (61), and each high-position steel spring (7) is sleeved on the peripheries of the limiting column (11) and the limiting sleeve (61) at the corresponding positions.
2. The pre-stressed air spring system of claim 1, wherein: spacing post (11) bottom is equipped with and is used for preventing anticreep platform (111) that stop collar (61) deviate from, anticreep platform (111) pass through bolt and spacing post (11) fastening connection.
3. The pre-stressed air spring system of claim 2, wherein: and a limiting table (12) is arranged at the bottom of the upper cover plate (1) and on the periphery of the high-position steel spring (7).
4. The pre-stressed air spring system according to any one of claims 1-3, wherein: and the top of the upper end plate (3) is provided with a wear plate (31) which is in contact with the bottom of the prepressing plate (6) in an air leakage state.
5. The pre-stressed air spring system of claim 4, wherein: the top of the upper end plate (3) is provided with a structure with rib plates and a tank body arranged alternately, and the wearing plate (31) is fixedly connected with the rib plates through bolts.
6. The pre-stressed air spring system according to any one of claims 1-3, wherein: the low-position hourglass elastic body (5) is connected with the upper end plate (3) and the lower end plate (4) in a vulcanization mode, and a conical cavity (51) is arranged in the center of the low-position hourglass elastic body (5).
7. The pre-stressed air spring system according to any one of claims 1-3, wherein: the bottom of the outer peripheral surface of the upper cover plate (1) is provided with a retaining ring (13), one end of the air bag (2) is buckled with the retaining ring (13), and the other end of the air bag is connected with the upper end plate (3) in a vulcanization mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317298.3A CN109281978B (en) | 2018-11-07 | 2018-11-07 | Pre-pressing type air spring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317298.3A CN109281978B (en) | 2018-11-07 | 2018-11-07 | Pre-pressing type air spring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109281978A CN109281978A (en) | 2019-01-29 |
| CN109281978B true CN109281978B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811317298.3A Active CN109281978B (en) | 2018-11-07 | 2018-11-07 | Pre-pressing type air spring system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578768B (en) * | 2019-09-23 | 2021-10-15 | 中车青岛四方车辆研究所有限公司 | Air spring and railway vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891910A (en) * | 2015-12-18 | 2017-06-27 | 株洲时代新材料科技股份有限公司 | A kind of Air spring for rail traffic |
| CN107725659A (en) * | 2017-10-27 | 2018-02-23 | 株洲时代新材料科技股份有限公司 | Combination type air spring system |
| CN107740837A (en) * | 2017-10-27 | 2018-02-27 | 株洲时代新材料科技股份有限公司 | Emergent air spring assembly |
| CN108105324A (en) * | 2018-01-18 | 2018-06-01 | 株洲时代新材料科技股份有限公司 | Prepressing type air spring system |
| CN207583916U (en) * | 2017-11-13 | 2018-07-06 | 株洲时代新材料科技股份有限公司 | A kind of combination type air spring system |
-
2018
- 2018-11-07 CN CN201811317298.3A patent/CN109281978B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891910A (en) * | 2015-12-18 | 2017-06-27 | 株洲时代新材料科技股份有限公司 | A kind of Air spring for rail traffic |
| CN107725659A (en) * | 2017-10-27 | 2018-02-23 | 株洲时代新材料科技股份有限公司 | Combination type air spring system |
| CN107740837A (en) * | 2017-10-27 | 2018-02-27 | 株洲时代新材料科技股份有限公司 | Emergent air spring assembly |
| CN207583916U (en) * | 2017-11-13 | 2018-07-06 | 株洲时代新材料科技股份有限公司 | A kind of combination type air spring system |
| CN108105324A (en) * | 2018-01-18 | 2018-06-01 | 株洲时代新材料科技股份有限公司 | Prepressing type air spring system |
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| CN109281978A (en) | 2019-01-29 |
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Effective date of registration: 20200605 Address after: 412007 No.301, physical and chemical building, Liyu Industrial Park, no.639, Heilongjiang Road, Tianyuan District, Zhuzhou City, Hunan Province Applicant after: Zhuzhou Times Ruiwei damping equipment Co., Ltd Address before: 412007 No. 18 Haitian Road, Tianyuan District, Hunan, Zhuzhou Applicant before: Zhuzhou Times New Material Technology Co.,Ltd. |
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