CN201013822Y - High pressure large load air spring - Google Patents
High pressure large load air spring Download PDFInfo
- Publication number
- CN201013822Y CN201013822Y CNU2007200837172U CN200720083717U CN201013822Y CN 201013822 Y CN201013822 Y CN 201013822Y CN U2007200837172 U CNU2007200837172 U CN U2007200837172U CN 200720083717 U CN200720083717 U CN 200720083717U CN 201013822 Y CN201013822 Y CN 201013822Y
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- flange
- air spring
- rubber
- packing
- cover plate
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Abstract
A high-pressure large-load air spring relates to a vibration separator which takes the compressed air with more than 1MPa of the pressure as an elastomer. The utility model consists of a rubber bursa body, a cover plate, a disc-shaped flange, a sealing ring and a filling material in the bursa. The disc-shaped flange can adjust the natural frequency and improve the bearing under the condition of large deformation of the air spring. After the aramid framework layer of the bursa body is enwound on the middle flange, the external flange and the tightening flange are tightly pressed and sulfureted into a three-flange integrated structure; the interior and the exterior of the aramid framework layer are provided with a sulfureted rubber layer. The rubber bursa body is sealed with a sealing belt on the outlet bursa body between the cover plates, an O-shaped sealing ring and a polytetrafluoroethylene sealing ring. The filling material arranged on the cover plate has a function of six-direction self-position limit and natural frequency adjustment in the rubber bursa body. The aramid framework of the utility model has the advantages of large strength, high pressure bearing of the air spring, large bearing with bearing capability of 100 tons, good anti-pull performance of the joint, good air sealing performance, self-position limit capability, adjustable natural frequency, and good vibration separation performance. The utility model can be used for the vibration and noise reduction in the large-scale mechanical devices such as naval ships and submarines.
Description
Technical field
The utility model 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 purpose of this utility model is at above-mentioned present situation, aims to provide that little, the interior pressure of a kind of bulk is high, bearing capacity is strong, good seal performance, Joint Reliability height, has elasticity from spacing ability, the good high-pressure large load air spring of damping property.
The implementation of the utility model purpose 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 utility model 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.The utility model cord frame strength 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 the utility model structural representation
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 utility model 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 utricule 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 utility model specific embodiment below: the utility model specific embodiment 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
| Do not have and fill | Initial load kN | 108.7 | 126.7 | 141.2 |
| Natural frequency Hz | 3.38 | 3.34 | 3.28 | |
| 60% fills | Initial load kN | 108.5 | 124.4 | 138.7 |
| Natural frequency Hz | 3.92 | 3.84 | 3.81 | |
| 70% fills | Initial load kN | 104.6 | 120.1 | 134.6 |
| Natural frequency Hz | 4.19 | 4.14 | 4.08 | |
| 80% fills | Initial load kN | 105.9 | 120.7 | 134.3 |
| Natural frequency Hz | 4.67 | 4.63 | 4.55 |
Fill pneumatic spring embodiment natural frequency influence test result in dish-shaped flange guiding angle of table 4 and the capsule
| Guiding angle 27.3 degree | Guiding angle 0 degree | ||||||
| 60% fills | Initial load kN | 134.0 | 152.1 | 168.2 | 133.3 | 149.8 | 165.3 |
| Natural frequency Hz | 4.28 | 4.19 | 4.15 | 3.59 | 3.56 | 3.52 | |
| 80% fills | Initial load kN | 132.2 | 148.3 | 164.4 | 130.3 | 145.8 | 163.0 |
| Natural frequency Hz | 4.69 | 4.63 | 4.57 | 4.23 | 4.19 | 4.15 | |
Claims (6)
1. high-pressure large load air spring, it is characterized in that rubber utricule (17) is by inner glue layer (21), outer glue-line (19) and middle aromatic polyamide cord framework layer (20) constitute, 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) locking, between with two groups of seal rings (9,10) and sealing configuration (22) sealing, 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 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) on upper cover plate (5) or the lower cover plate (18)) and mounting hole (1).
2. high-pressure large load air spring according to claim 1 is characterized in that 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 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 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 teflin ring.
6. high-pressure large load air spring according to claim 1, it is characterized in that packing (6) has boss (26), directional post (24) is arranged at middle and top, there is packing (29) inside, there is clamp (27) at following packing (4) middle part, guide collar (28) is arranged up and down, and there is the rubber elastomer buffer layer on the surface of last packing (6) or following packing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200837172U CN201013822Y (en) | 2007-03-08 | 2007-03-08 | High pressure large load air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200837172U CN201013822Y (en) | 2007-03-08 | 2007-03-08 | High pressure large load air spring |
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| Publication Number | Publication Date |
|---|---|
| CN201013822Y true CN201013822Y (en) | 2008-01-30 |
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ID=39025613
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200837172U Expired - Lifetime CN201013822Y (en) | 2007-03-08 | 2007-03-08 | High pressure large load air spring |
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| Country | Link |
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| CN (1) | CN201013822Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443761C (en) * | 2007-03-08 | 2008-12-17 | 中国人民解放军海军工程大学 | High-pressure large load air spring |
| CN103629291A (en) * | 2013-01-18 | 2014-03-12 | 中电投工程研究检测评定中心 | Tuned mass damper |
| CN108916288A (en) * | 2018-08-24 | 2018-11-30 | 中国人民解放军海军工程大学 | Non-axis symmetry abnormity air bag vibration isolator |
| 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 |
-
2007
- 2007-03-08 CN CNU2007200837172U patent/CN201013822Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443761C (en) * | 2007-03-08 | 2008-12-17 | 中国人民解放军海军工程大学 | High-pressure large load air spring |
| CN103629291A (en) * | 2013-01-18 | 2014-03-12 | 中电投工程研究检测评定中心 | Tuned mass damper |
| 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 |
| CN108916288A (en) * | 2018-08-24 | 2018-11-30 | 中国人民解放军海军工程大学 | Non-axis symmetry abnormity air bag vibration isolator |
| 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080130 |
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| CX01 | Expiry of patent term |