CN202170953U - Free diaphragm type inclination prevention air spring - Google Patents
Free diaphragm type inclination prevention air spring Download PDFInfo
- Publication number
- CN202170953U CN202170953U CN2011202515339U CN201120251533U CN202170953U CN 202170953 U CN202170953 U CN 202170953U CN 2011202515339 U CN2011202515339 U CN 2011202515339U CN 201120251533 U CN201120251533 U CN 201120251533U CN 202170953 U CN202170953 U CN 202170953U
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- CN
- China
- Prior art keywords
- air spring
- pneumatic spring
- backstop
- straight pin
- rubber
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Abstract
The utility model provides a free diaphragm type inclination prevention air spring which belongs to the technical field of air springs. The existing air spring has a transverse backstop gap and a vertical backstop gap, so that the vibration impact cannot be decreased in the operation process. The free diaphragm type inclination prevention air spring adopts a lengthened cylindrical pin and is provided with a friction block; a backstop seat is designed to be concave downward; an upper wall of the backstop seat is heightened; with the adoption of the design, not only is a reasonable free gap provided for the air spring, but also the fact that the cylindrical pin jumps out of the backstop seat is effectively avoided; in addition, the air spring is provided with a horizontality prevention and tipping prevention rubber block, so as to effectively prevent the air spring from being inclined; and the rubber block and a transverse limiting device jointly achieves a horizontal elastic gap. The free diaphragm type inclination prevention air spring is mainly used for a vibration damping system of a magnetically levitated vehicle.
Description
Technical field
The utility model belongs to pneumatic spring technical field, particularly free diaphragn type air spring.
Background technique
Spring suspension is one of key factor of decision vehicle operating quality.Guarantee that vehicle has good riding quality, must consider at first that spring suspension can make the natural frequency of vibration of vehicle sprung weight enough low.That is to say that the most important measure that improves vehicle smoothness is the natural bow that increases spring suspension as far as possible.Under the situation that adopts the plain carbon steel spring, for the very soft vehicle of spring suspension, natural bow when zero load and the difference between the natural bow of full load are very remarkable.When this difference reaches very big, may cause that the riding quality of vehicle under maximum load lotus and minimum loading has very big difference.Secondly may cause two even unhooking of two-wheeler.If spring suspension adopts pneumatic spring, then there is not the above-mentioned shortcoming of common linear steel spring.
But, not enough below the existing pneumatic spring that operates on the maglev vehicle exists:
One, the stop wall height of this pneumatic spring is not enough, and when pneumatic spring straight pin bounce or jump, straight pin is jumped out stopping seat easily, loses the pneumatic spring damping.Existing pneumatic spring straight pin length is merely 20mm, and in the practice process, because the irreqularity of Vehicular vibration, the pneumatic spring straight pin is easy to jump out backstop, and phenomenon had taken place to jump out for several times in the practice process.
Two, the horizontal backstop gap of pneumatic spring and vertical backstop gap are not enough, and the vibratory impulse in the time of can not well reducing to move reduces the magnetic-levitation train riding quality;
Three, owing to the existence of horizontal clearance, the easy when mounted occurrence of tilting phenomenon of pneumatic spring is unfavorable for installing, and the pneumatic spring unbalance loading is serious, and located lateral rigidity is little.Cause car body to follow run-off the straight like this, and the rapid reduction of the vertical shock-absorbing capacity of air spring type.Owing to the existence of horizontal clearance, the angle of empty spring run-off the straight will be greater than the angle of inclination requirement of empty spring simultaneously.Supposing that the air bag of pneumatic spring is high is h, and the gap between air bag and the protective housing is l, for and protective housing between wear and tear, prevent that pneumatic spring from tilting, therefore, the extreme angles of spring inclination is:
θ＝arctanh/l
Four, pneumatic spring is receiving under the situation of transverse force, and pneumatic spring will occur tilting, thereby causes influencing the riding quality of maglev vehicle, also causes air-spring bellows to be prone to breakage, gas leakage etc., threatens traffic safety.
The model utility content
The purpose of the utility model just provides the anti-inclination pneumatic spring of a kind of free membrane type, and it can prevent maglev vehicle car body run-off the straight when operation effectively.
The purpose of the utility model is realized by following technological scheme: a kind of free membrane type is prevented the inclination pneumatic spring; Comprise the rubber metal pad that is seated on the lower bottom base; The bottom of rubber bag tank is fastening with the stopping seat that is located at the rubber metal pad top; The top of rubber bag tank and the bottom margin of upper plate are fastening, are provided with dust seal cover between upper plate and the fitting seat, and throttle valve is located at the side of upper plate; Upper plate is the welding integral structure with the bottom cover plate that has straight pin, and this welding integral structure is up-narrow and down-wide cavity body structure.The affixed brake pad of the convex shoulder of straight pin, the below, side of rubber bag tank is provided with block rubber, and there is a recessed and recessed coupling of rubber metal pad at the position placed in the middle of stopping seat, and the upper wall top of stopping seat and the distance between the brake pad are less than the distance of straight pin head and stopping seat bottom.
The advantage of this pneumatic spring is simple and compact for structure, and the backstop design of pneumatic spring is inner at rubber bag tank, and this design is easy to processing, on horizontal, vertical, can realize the backstop function.This pneumatic spring has added anti-inclination block rubber simultaneously; Install and receive under the situation of big transverse force at pneumatic spring; Pneumatic spring can run-off the straight; Can effectively improve the pneumatic spring load situation when installing like this, and prevent maglev vehicle car body run-off the straight when operation, also can improve the travelling comfort of the floating car of magnetic.
Adopt the lengthening straight pin to replace the straight pin of former pneumatic spring, the straight pin of lengthening pneumatic spring is 38mm, has replaced the straight pin of original 20mm.Simultaneously stopping seat has been carried out recessed design and increased the upper wall of stopping seat, this design can make pneumatic spring that enough backstop gaps are arranged, and when preventing that the pneumatic spring straight pin from beating, straight pin is jumped out stopping seat; On the basis of original structure; Set up the anti-block rubber of toppling over, it is installed on rubber bag tank and pneumatic spring is installed between the basis, not only has the effect that prevents that pneumatic spring from toppling over; The effect that also has simultaneously elastic bolster guide; In vibrating car, prevent that pneumatic spring and edge from coming in contact, and avoids the wearing and tearing of air-spring bellows.
Compared with prior art, the beneficial effect of the utility model is:
One, adopt the lengthening straight pin to replace the straight pin of former pneumatic spring, the straight pin of using the lengthening pneumatic spring has replaced the straight pin of original 20mm to 38mm, prevents the pneumatic spring straight pin and jumps out the inner core phenomenon.
Two, stopping seat is carried out recessed design and increased the upper wall of stopping seat.Enough horizontal, vertical backstop gaps are provided.And prevent that straight pin from jumping out the inner core phenomenon and taking place.
Three, set up the anti-block rubber of toppling over.Effectively improve the phenomenon of toppling over of pneumatic spring, behind the anti-inclination block rubber of increase, have block rubber to fill between air-spring bellows and the protective housing, its both gaps are 0, when pneumatic spring tilts, are that the inclination block rubber is prevented in compression fully.Therefore, the tilt boundary angle that this just greatly reduces pneumatic spring prevents that air-spring bellows and edge from coming in contact friction, avoids the wearing and tearing of air-spring bellows.And elastic gap can be provided.
Below in conjunction with accompanying drawing and concrete mode of execution the utility model is done further to specify.
Description of drawings
Fig. 1 the utility model embodiment's main sectional structure schematic representation.
Embodiment
Embodiment is illustrated by Fig. 1, and a kind of embodiment of the utility model is:
A kind of free membrane type is prevented the inclination pneumatic spring; Comprise the rubber metal pad 9 that is seated on the lower bottom base 10; The bottom of rubber bag tank 4 is fastening with the stopping seat 8 that is located at rubber metal pad 9 tops, and the bottom margin of the top of rubber bag tank 4 and upper plate 1 is fastening, is provided with dust seal cover 3 between upper plate 1 and the fitting seat; Throttle valve 2 is located at the side of upper plate 1, and upper plate 1 is the welding integral structure with the bottom cover plate that has straight pin 6.This welding integral structure is up-narrow and down-wide cavity body structure.The affixed brake pad 5 of the convex shoulder of straight pin 6; The below, side of rubber bag tank 4 is provided with block rubber 7; There are recessed and rubber metal pad 9 recessed couplings at the position placed in the middle of stopping seat 8, and the upper wall top of stopping seat 8 and the distance between the brake pad 5 are less than the distance of straight pin 6 heads and stopping seat 8 bottoms.
In sum; Adopt the magnetic-levitation train of the anti-inclination pneumatic spring of free membrane type; Not only can transmit the quality of car body and the parts transversely power and the longitudinal force in when operation; And pneumatic spring has enough backstop gaps, the vibratory impulse in the time of can reducing to move, the running comfort of raising magnetic-levitation train; Simultaneously, anti-topple over block rubber owing to increased, when pneumatic spring received bigger transverse force, the phenomenon that the magnetic-levitation train car body also can not occur toppling over had improved the operational safety performance and the riding quality of magnetic-levitation train.
Claims (2)
1. a free membrane type is prevented the inclination pneumatic spring; Comprise the rubber metal pad (9) that is seated on the lower bottom base (10); The bottom of rubber bag tank (4) is fastening with the stopping seat (8) that is located at rubber metal pad (9) top, and the bottom margin of the top of rubber bag tank (4) and upper plate (1) is fastening, is provided with dust seal cover (3) between upper plate (1) and the fitting seat; Throttle valve (2) is located at the side of upper plate (1); It is characterized in that: upper plate (1) is the welding integral structure with the bottom cover plate that has straight pin (6), the affixed brake pad of convex shoulder (5) of straight pin (6), and the below, side of rubber bag tank (4) is provided with block rubber (7); There is a recessed and recessed coupling of rubber metal pad (9) at the position placed in the middle of stopping seat (8), and the distance between the upper wall top of stopping seat (8) and the brake pad (5) is less than the distance of straight pin (6) head and stopping seat (8) bottom.
2. a kind of free membrane type according to claim 1 is prevented the inclination pneumatic spring, it is characterized in that: said upper plate (1) is up-narrow and down-wide cavity body structure with the bottom cover plate that has straight pin (6) for the welding integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202515339U CN202170953U (en) | 2011-07-16 | 2011-07-16 | Free diaphragm type inclination prevention air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202515339U CN202170953U (en) | 2011-07-16 | 2011-07-16 | Free diaphragm type inclination prevention air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170953U true CN202170953U (en) | 2012-03-21 |
Family
ID=45829149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202515339U Expired - Fee Related CN202170953U (en) | 2011-07-16 | 2011-07-16 | Free diaphragm type inclination prevention air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170953U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352906A (en) * | 2011-07-16 | 2012-02-15 | 西南交通大学 | Free-film type anti-inclination air spring |
| CN103277443A (en) * | 2013-04-24 | 2013-09-04 | 南京捷诺环境技术有限公司 | Vibration isolator resisting inclination |
| CN104729504A (en) * | 2015-03-09 | 2015-06-24 | 北京航天自动控制研究所 | Method for confirming inclination angle of powerless hypersonic flight vehicle |
| CN110329296A (en) * | 2019-08-15 | 2019-10-15 | 株洲时代新材料科技股份有限公司 | A kind of rubber metal pad shop bolt fixed form and rubber metal pad |
| CN111473086A (en) * | 2020-03-17 | 2020-07-31 | 株洲时代瑞唯减振装备有限公司 | Air spring provided with pressure relief emergency device |
| EP3858655A4 (en) * | 2018-09-30 | 2021-12-01 | Crrc Tangshan Co., Ltd. | Maglev vehicle and suspension frame assembly thereof |
-
2011
- 2011-07-16 CN CN2011202515339U patent/CN202170953U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352906A (en) * | 2011-07-16 | 2012-02-15 | 西南交通大学 | Free-film type anti-inclination air spring |
| CN103277443A (en) * | 2013-04-24 | 2013-09-04 | 南京捷诺环境技术有限公司 | Vibration isolator resisting inclination |
| CN104729504A (en) * | 2015-03-09 | 2015-06-24 | 北京航天自动控制研究所 | Method for confirming inclination angle of powerless hypersonic flight vehicle |
| CN104729504B (en) * | 2015-03-09 | 2015-12-02 | 北京航天自动控制研究所 | A kind of defining method of pitch angle of unpowered hypersonic aircraft |
| EP3858655A4 (en) * | 2018-09-30 | 2021-12-01 | Crrc Tangshan Co., Ltd. | Maglev vehicle and suspension frame assembly thereof |
| CN110329296A (en) * | 2019-08-15 | 2019-10-15 | 株洲时代新材料科技股份有限公司 | A kind of rubber metal pad shop bolt fixed form and rubber metal pad |
| CN111473086A (en) * | 2020-03-17 | 2020-07-31 | 株洲时代瑞唯减振装备有限公司 | Air spring provided with pressure relief emergency device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20140716 |
|
| EXPY | Termination of patent right or utility model |