CN100443761C - High-pressure large load air spring - Google Patents
High-pressure large load air spring Download PDFInfo
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- CN100443761C CN100443761C CNB2007100516354A CN200710051635A CN100443761C CN 100443761 C CN100443761 C CN 100443761C CN B2007100516354 A CNB2007100516354 A CN B2007100516354A CN 200710051635 A CN200710051635 A CN 200710051635A CN 100443761 C CN100443761 C CN 100443761C
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Abstract
The present invention belongs to a high-pressure large-load air spring, in particular, it relates to a vibration isolator using compressed air whose pressure is greater than IMPa as elastic body. It is composed of the following several portions: rubber bag body with aramid fiber skeleton layer, cover plate, disked flange, sealing ring and filling material in the bag interior. Said invention also provides the concrete structure of above-mentioned every portion and the connection mode of all the above-mentioned portions. Said invention also provides the working principle of said high-pressure large-load air spring and its concrete operation method.
Description
Technical field
The present invention relates to a kind of pressurized air of 1MPa that is higher than with pressure as elastomeric vibration isolator.
Background technique
Vibration is ubiquitous phenomenon, and vibration can derive from nature, also can derive from the Human's production activity.On the naval vessel, industrial fields such as railway locomotive, vehicle because the vibration of machinery can influence environmental amenity, serious meeting causes the destruction of equipment.For the harm that reduces to vibrate, vibration isolation is that investment is little, but efficient ways.Vibration isolator commonly used has rubber vibration isolator, metal vibration isolator (helical spring vibration isolator, butterfly spring vibration isolator, leaf spring vibration isolator, steel-wire isolator and metallic rubber vibration isolator etc.), the little load air spring of low pressure.Domestic and international existing pneumatic spring has capsule formula and membrane type two classes, the interface structure form of utricule and cover plate mainly contains crimping formula, flange extruding type and self-sealed, the resistance to plucking that all can not satisfy interface when pressing in the height takes off requirement, and working pressure is lower, maximum service pressure is no more than 0.7MPa, if will improve bearing capacity, its volume size is inevitable bigger, and therefore existing pneumatic spring maximum load-carrying capacity is no more than 10 tons.And domestic and international its sealing of existing pneumatic spring, utricule intensity, utricule and the anti-pulling-and-doffing performance, safety reliability etc. of cover plate is all relatively poor up and down.To volume size, the demanding occasion of safety reliability, existing pneumatic spring obviously can not meet the demands for naval vessel, submarine etc.Under the strict condition of volume size, improve load and can only improve working pressure.Under the high inside casing spare, the sealing of pneumatic spring, intensity, anti-pulling-and-doffing performance and safety reliability etc. require higher.
Show through theoretical and experimental research, pneumatic spring utricule framework layer is carried out particular design, adopt the novel high-performance framework material can realize the high interior pressure of pneumatic spring, high strength and big bearing capacity; The design novel sealing structure, adopt multi-sealed technology, the novel joint structure of design can realize that the pneumatic spring resistance to plucking takes off and requirement such as tightness.Press large load air spring can be effectively applied to the vibration and noise reducing of ship's fitting in this height, and the favorable damping noise reduction can be provided.
At present, this high interior large load air spring of pressing with the various premium properties that are applicable to that the naval vessel uses does not also have Related product both at home and abroad.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide that little, the interior pressure of a kind of bulk is high, bearing capacity is strong, good seal performance, Joint Reliability height, have elasticity from spacing ability, the good high-pressure large load air spring of damping property.
The implementation of the object of the invention is, high-pressure large load air spring, rubber utricule 17 is by inner glue layer 21, outer glue-line 19, middle cord framework layer 20 constitutes, the cord of cord framework layer 20 encloses around one along the spacer flanger 13 of utricule three flange joint structures 23, and be fixed by outward flange 12 and supported flange 14 and constitute three flange resistance to pluckings and take off and seal joint structure, be fixed with lining 3 in the three flange joint structures 23, dish flange 15 is fixed on the supported flange 14 by fastening screw trip bolt 16, rubber utricule 17 is by fastening screw trip bolt 2 and upper cover plate 5 and lower cover plate 18 lockings, between with seal ring 9,10 and sealing configuration 22 sealing, last packing 6 and following packing 4 are arranged in the rubber utricule 17, last packing is fixed on the upper cover plate 5 by fastening screw trip bolt 7, following packing 4 is fixed on the lower cover plate 18 by fastening screw trip bolt 8, has pore 11 and mounting hole 1 on upper cover plate 5 or the lower cover plate 18.
Carrying when the adjustable solidating of dish-shaped flange of the present invention has frequency and improves pneumatic spring large deformation situation; The cord framework layer of utricule is sulfided into three flange integrative type structures around back being compressed by outward flange and supported flange of a circle on spacer flanger, the inside and outside sulfuration of aramid fiber framework layer has inside and outside glue-line, and intensity is big; Sealing strip, O-ring seals and three sealings of teflin ring on the utricule are arranged between utricule and the cover plate, and three times the sealing tightness is good; Packing is housed on the cover plate, packing in capsule, play a part six to elasticity from spacing and adjust natural frequency.Cord frame strength of the present invention is big, pneumatic spring pressure-bearing height, carrying is big, tightness is good, the joint anti-pulling-and-doffing performance is good, have from spacing ability, and adjustable natural, anti-vibration performance is good, can be used as the vibration and noise reducing of naval vessels and submarine heavy mechanical equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a upper and lower covers plate interface schematic representation
Fig. 3 goes up the packing structure schematic representation
Fig. 4 is that the A-A of Fig. 3 is to view
Fig. 5 is following packing structure schematic representation
Fig. 6 is that the B-B of Fig. 5 is to view
Embodiment
With reference to Fig. 1,2, the present invention is by rubber utricule 17, dish-shaped flange 15, upper and lower packing 6,4 five parts in cover plate 5,18, high-performance seal ring 9,10 and the rubber utricule are formed up and down.
Rubber utricule 17 is sulfided into overall structure by inner glue layer 21, outer glue-line 19 and cord framework layer 20, and framework layer adopts the aramid fibre cord, and its intensity and steel wire are suitable, than about Senior Three such as nylon, polyester times.Under the condition of air bag same structure size, the rubber utricule that adopts the aramid fibre cord than the rubber utricule pressure-bearing Senior Three that adopts cords such as common nylon, polyester doubly about, the same Senior Three of bearing capacity doubly about, so can realize high-pressure large load, the interior pressure that guarantees strong vibration isolator reaches 3MPa, realize the big bearing capacity of vibration isolator, satisfy the requirement of naval vessel the bulk restriction.Aramid fibre and other material property relatively see Table 1.
Table 1 aramid fibre and other material property are relatively
Cord framework layer 20 can also adopt carbon fiber cord class high strength fibre cord except adopting the aromatic polyamide cord; Cord framework layer 20 can adopt four layers, six layers or eight layers of structure, and is the angle interlaced arrangement of regulation between the two-layer cord mutually.
The framework layer cord of rubber bag tank spare 17 encloses around one along the spacer flanger 13 of utricule three flange joint structures 23, adopt outward flange 12 and supported flange 14 to be pressed on jointly on the spacer flanger 13 then, be sulfided into incorporate overall structure at last, realize that the resistance to plucking of joint structure takes off and high reliability.After adopting the integrated joint structure of three flanges, utricule and up and down the sealing of cover plate adopt the sealing configuration 22 on two groups of seal rings 9,10 and the rubber utricule 17 to seal.The inner ring seal ring 9 of two groups of seal rings 9,10 adopts O-ring seals, and outer ring seal ring 10 adopts good seal performance, long high-performance teflin ring of life-span, adopts three sealings to realize the high-air-tightness of high-pressure large load air spring.
The damping property of high-pressure large load air spring depends mainly on natural frequency, can adjust by the guiding angle of dish-shaped flange 15 and the size of its inside stuffing, the fill factor of pneumatic spring is big more, the angle of deflection of dish-shaped flange is big more, and the natural frequency of pneumatic spring is big more.Dish flange 15 is dish, its effect can be used to adjust the natural frequency of pneumatic spring on the one hand, on the other hand can be when the loading of transient state thump, pneumatic spring produces bigger compressive strain, this moment, pneumatic spring air pressure raise and the effective bearing area increase, dish flange 15 contacts with rubber utricule 17, improves the bearing capacity of pneumatic spring, improves the reliability of pneumatic spring.Dish flange 15 is installed on the supported flange 14, the circular arc in dish flange longitudinal section is mutually circumscribed at the point of contact place with the circular arc in rubber utricule longitudinal section, the radius of arc in dish flange 15 longitudinal sections is bigger than the radius of arc in rubber utricule 17 longitudinal sections, and the circular arc vertical section structure is bigger to the corrective action of pneumatic spring performance than linarity shape vertical section structure.
With reference to Fig. 1,3,4,5,6, upper and lower packing 6,4 is arranged in the rubber utricule, last packing 6 is fixed on the upper cover plate 5 by fastening screw trip bolt 7, and following packing 4 is fixed on the lower cover plate 18 by fastening screw trip bolt 8.
In the middle of the last packing 6 and outside is a nonmetal structure 25,29, and the centre is a Structural Hardware.Nonmetal structure can be highly resilient materials such as rubber, polyester, and the nonmetal structure that is made of highly resilient material can be bonded into overall structure with last packing Structural Hardware.Last packing 6 has boss 26, and directional post 24 is arranged at middle and top.
There is clamp 27 at following packing 4 middle parts, and guide collar 28 is arranged up and down.There is rubber elastomer buffer layer 25 on the surface of last packing 6.During installation, to go up to revolve again behind the packing 4 under packing 6 insertions and turn 90 degrees, boss 26 quilts of last packing 6 clamp 27 at packing 4 middle parts down block, directional post 24 quilts of last packing 6 guide collar 28 of packing 4 down comprise, packing has the rubber elastomer buffer layer each other up and down, realize pressing in high large load air spring six to elasticity from spacing.The naval vessel waves in high sea and the naval vessel is subjected to thump to do the time spent; the displacement restriction structure can effectively limit the big displacement of ship's fitting; thereby the pipeline that protection is connected with equipment and the Security of cable; and rubber elastomer can slowly limit the big displacement of ship's fitting, is unlikely to because the metal rigidity collision of displacement restriction structure causes the impact damage of ship's fitting.
Enumerate the specific embodiment of the invention below: specific embodiment of the invention boundary dimension is: long 460mm, wide 440mm, high 200mm.The thick 8mm of rubber bag tank body wall adopts the aromatic polyamide cord framework layer of four layers of 1500den/1 * 3 specification, and the radius of arc in pneumatic spring longitudinal section is 35mm, and the radius of arc in dish-shaped flange longitudinal section is 40mm.The fill factor adjustable extent of capsule internal volume is 0～90%, if fill the limit structure that is designed to shown in Fig. 3,4,5,6 in the capsule, the fill factor adjustable extent is 40～90%.The performance of the aromatic polyamide cord of 1500den/1 * 3 specifications sees Table 2.
Table 2 aromatic polyamide cord performance index
Through experimental test, when the pneumatic spring inflation pressure was 1～3MPa, the bearing capacity of air load was 8～25 tons.When being pressed onto 25MPa in pneumatic spring fills, pneumatic spring do not see and reveals and damaged, and the intensity of rubber utricule, the resistance to plucking of joint structure take off, sealing and reliability are guaranteed.Press 3MPa in pneumatic spring fills, left standstill 60 days, pressure reduces less than 5%.Fill in the pneumatic spring capsule and the dish-shaped flange angle that leads sees Table 3 and table 4 to pneumatic spring natural frequency influence situation.Embodiment dish flange guiding angle is 27.3 degree, and it is 0 degree that the dish-shaped flange angle that is equivalent to lead is not installed.
Fill pneumatic spring embodiment natural frequency influence test result in table 3 capsule
Fill pneumatic spring embodiment natural frequency influence test result in dish-shaped flange guiding angle of table 4 and the capsule
Claims (6)
1. high-pressure large load air spring is characterized in that rubber utricule (17) is made of inner glue layer (21), outer glue-line (19) and middle aromatic polyamide cord framework layer (20); A utricule three flange joint structures (23) are fixed at the two ends of utricule (17) respectively; Described utricule three flange joint structures (23) comprise outward flange (12), spacer flanger (13) and supported flange (14);
For each described utricule three flange joint structure (23): the cord of aromatic polyamide cord framework layer (20) along spacer flanger (13) around a circle, and be fixed by outward flange (12) and supported flange (14) and constitute three flange resistance to pluckings and take off and seal joint structure, and be fixed with lining (3) in the utricule three flange joint structures (23), dish-shaped flange (15) is fixed on the supported flange (14) by dish-shaped flange fastening screw trip bolt (16);
Described utricule three flange joint structure (23) pass a locking mutually in the first described lining (3) that is fixed in wherein and upper cover plate (5) and the lower cover plate (18) by first fastening screw trip bolt (2), and another described utricule three flange joint structures (23) pass in the second described lining (3) that is fixed in wherein and upper cover plate (5) and the lower cover plate (18) another and lock mutually by second fastening screw trip bolt (2);
All use inner seal ring (9), exterior seal ring (10), seal boss (22) sealing between rubber utricule (17) and upper cover plate (5), the lower cover plate (18), last packing (6) and following packing (4) are arranged in the rubber utricule (17), last packing (6) is fixed on the upper cover plate (5) by the 3rd fastening screw trip bolt (7), following packing (4) is fixed on the lower cover plate (18) by the 4th fastening screw trip bolt (8), has pore (11) and mounting hole (1) on upper cover plate (5) or the lower cover plate (18).
2. high-pressure large load air spring according to claim 1 is characterized in that aromatic polyamide cord framework layer (20) adopts carbon fiber cord class high strength fibre cord.
3. high-pressure large load air spring according to claim 1 is characterized in that aromatic polyamide cord framework layer (20) adopts four layers, six layers or eight layers of structure, and is the angle interlaced arrangement of regulation between the two-layer cord mutually.
4. high-pressure large load air spring according to claim 1, the circular arc that it is characterized in that dish-shaped flange longitudinal section is mutually circumscribed at the point of contact place with the circular arc in rubber utricule longitudinal section, and the radius of arc in dish-shaped flange (15) longitudinal section is bigger than the radius of arc in rubber utricule (17) longitudinal section.
5. high-pressure large load air spring according to claim 1 is characterized in that inner ring seal ring (9) adopts O-ring seals, and outer ring seal ring (10) adopts teflin ring.
6. high-pressure large load air spring according to claim 1, the bottom that it is characterized in that packing (6) are boss (26), the directional post (24) that the middle part of last packing (6) and top are hollow; Packing (29) is arranged in the middle of the last packing (6); The middle part of following packing (4) is clamp (27), and the upper and lower of following packing (4) is guide collar (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100516354A CN100443761C (en) | 2007-03-08 | 2007-03-08 | High-pressure large load air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100516354A CN100443761C (en) | 2007-03-08 | 2007-03-08 | High-pressure large load air spring |
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| Publication Number | Publication Date |
|---|---|
| CN101021240A CN101021240A (en) | 2007-08-22 |
| CN100443761C true CN100443761C (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100516354A Active CN100443761C (en) | 2007-03-08 | 2007-03-08 | High-pressure large load air spring |
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Families Citing this family (18)
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| JP5607432B2 (en) * | 2010-06-11 | 2014-10-15 | 東洋ゴム工業株式会社 | Rubber molding manufacturing method and transfer molding die |
| CN101985966A (en) * | 2010-10-21 | 2011-03-16 | 西安达盛隔震技术有限公司 | Vibration-damping and silencing compound air spring |
| CN102008990A (en) * | 2010-12-30 | 2011-04-13 | 西安达盛隔震技术有限公司 | Damping/silencing compound air device |
| CN103122966A (en) * | 2011-11-18 | 2013-05-29 | 北汽福田汽车股份有限公司 | Compound suspension |
| CN102635660B (en) * | 2012-05-03 | 2014-11-05 | 株洲时代新材料科技股份有限公司 | Square high-load air spring |
| CN103629291B (en) * | 2013-01-18 | 2015-11-25 | 中电投工程研究检测评定中心 | A kind of tuned mass damper |
| CN106931064A (en) * | 2015-12-31 | 2017-07-07 | 株洲时代新材料科技股份有限公司 | A kind of Air spring for rail traffic |
| CN109765098A (en) * | 2019-01-15 | 2019-05-17 | 哈尔滨经纬复合新材料工程有限公司 | A kind of flexible high pressure utricule system application of uniform stress |
| CN110131506A (en) * | 2019-05-07 | 2019-08-16 | 中国人民解放军海军工程大学 | Monoblock type list bump joint structure |
| CN110159695B (en) * | 2019-05-17 | 2020-12-22 | 中国人民解放军海军工程大学 | Cord integrated winding reinforced rubber air spring |
| CN110165613B (en) * | 2019-06-21 | 2021-05-11 | 中船黄埔文冲船舶有限公司 | Cable support frame |
| CN110439960B (en) * | 2019-07-19 | 2024-06-21 | 中国船舶重工集团公司第七一九研究所 | Small-sized air bag |
| CN112145610B (en) * | 2020-09-22 | 2022-08-26 | 中车青岛四方车辆研究所有限公司 | Air spring |
| CN112797108B (en) * | 2021-01-05 | 2022-07-05 | 中国人民解放军海军工程大学 | Hyperbolic membrane type low-rigidity air spring |
| CN112984024B (en) * | 2021-01-22 | 2022-06-21 | 中国人民解放军92578部队 | Capsule type molecular spring vibration isolator |
| CN112943843A (en) * | 2021-02-23 | 2021-06-11 | 常州大学 | Bionic vibration isolation system |
| CN114810901B (en) * | 2022-04-15 | 2024-02-20 | 中国人民解放军海军工程大学 | Novel air bag vibration isolator |
| CN114738419B (en) * | 2022-04-18 | 2023-07-14 | 中国人民解放军海军工程大学 | Anti-pulling degassing bag vibration isolator and pre-positioning tool |
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2007
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|---|---|---|---|---|
| US5374037A (en) * | 1993-09-20 | 1994-12-20 | Bridgestone/Firestone, Inc. | Clamp ring assembly for air spring |
| JP2000088029A (en) * | 1998-09-11 | 2000-03-28 | Toyo Tire & Rubber Co Ltd | Vibration isolating device |
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| CN101021240A (en) | 2007-08-22 |
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