CN106641079B - A kind of air bag sub-mouth sealing method of yeast bellows type air spring - Google Patents
A kind of air bag sub-mouth sealing method of yeast bellows type air spring Download PDFInfo
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- CN106641079B CN106641079B CN201710017585.1A CN201710017585A CN106641079B CN 106641079 B CN106641079 B CN 106641079B CN 201710017585 A CN201710017585 A CN 201710017585A CN 106641079 B CN106641079 B CN 106641079B
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- air bag
- mouth
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- ring
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
Abstract
The invention discloses a kind of air bag sub-mouth sealing methods of yeast bellows type air spring, its be rim of the mouth on air bag is first arranged to rim of the mouth ontology on cricoid air bag, connection ring three parts in rim of the mouth on air bag sub-mouth sealing circle and air bag, air bag sub-mouth sealing circle is located at the outer fix of rim of the mouth ontology on air bag, is linked into an integrated entity between rim of the mouth ontology and air bag sub-mouth sealing circle by rim of the mouth connection ring on air bag on air bag；Rim of the mouth on air bag is installed between upper cover plate and retaining ring again, by screw by upper cover plate together with fastening-ring locking, compressing air bag sub-mouth sealing circle using upper cover plate and retaining ring makes air bag sub-mouth sealing circle form interference compression, to realize the sealing in rim of the mouth on air bag.The present invention on the premise of ensuring tightness, can reduce the requirement to air bag rim of the mouth size, upper cover plate flatness and retaining ring size, to reduce manufacture and examine difficulty.
Description
Technical field
The present invention relates to rim of the mouth in a kind of air sac sealing method more particularly to a kind of air bag of yeast bellows type air spring is close
Encapsulation method.
Background technique
Air spring is a kind of bullet for being filled with compressed air in telescopic closed container, being acted on using aeroelastic
Spring is commonly called as air bag, balloon-type cylinder, leather bag cylinder etc..
Air spring can be used on the bogie of rail traffic vehicles, rise support bearing, realize the vertical direction of bogie with
The effects of horizontal in-plane deformation.Since air spring has bearing capacity strong, natural frequency of vibration stabilization, deformability are strong and by matching
Close control device the advantages that height of the carbody being kept constant, therefore, air spring be widely used in main line coach, EMU and
On the rail traffic vehicles such as city railway vehicle.In actual operation, air spring is exactly to utilize the high pressure being sealed in air bag
The compressibility of air realizes the effect of vibration damping, and therefore, the sealing effect of empty spring is the basic guarantee that sky spring realizes function.
As shown in Figure 1, in existing yeast bellows type air spring, the sealing in rim of the mouth is by screw 1 by gas on air bag
Rim of the mouth 2 compresses between upper cover plate 3 and retaining ring 4 on capsule, reaches sealing effect using the interference compression of rim of the mouth rubber.But
It is that this sealing structure requires strictly air bag rim of the mouth size, upper cover plate flatness and retaining ring size, because air bag rim of the mouth vulcanizes
Rubber size need to guarantee by mold afterwards, be easy to appear in actual production process since the uneven even circumferencial direction of rubber thickness goes out
It now deforms and leads to gas leakage risk so that air bag is scrapped, therefore, existing this sealing structure requires air bag rim of the mouth size severe
It carves, manufacture and inspection difficulty are larger.
Authorization Notice No. is CN201914268U, and authorized announcement date is that the Chinese utility model patent on the 3rd of August in 2011 is public
A kind of air spring used for bolsterless truck, including bottom plate composition, rubber metal pad, capsule, upper cover, retaining ring, fulcrum bearing have been opened, it is described
Bottom plate composition include one piece of support plate and the positioning pin for being welded on support plate center, rubber metal pad mandrel and bottom plate, which form, passes through spiral shell
Bolt is assembled into one, and a cavity is equipped with inside mandrel, and the rubber metal pad vulcanizes in the side surface of mandrel, the lateral surface of rubber metal pad
Equipped with a metal cushion cap, a part is extended outward on the outside of metal cushion cap and forms a supporting table, is equipped in supporting table
The edge of fulcrum bearing, upper surface is equipped with friction block, the chuck equipped with an evagination；The lower surface of the upper cover is provided with
The retaining ring of annular, retaining ring inside are equipped with groove；The capsule is big curve sac type capsule, and rim of the mouth is buckled in recessed on the inside of retaining ring thereon
In slot, lower rim of the mouth is bonded by pressure self-sealing mode with the chuck of fulcrum bearing.
Data of publication of application number is CN103395429A, and data of publication of application is that the Chinese invention patent on November 20th, 2013 is public
Open a kind of Air spring for rail traffic comprising: upper cover plate；It is used to support the hourglass spring of the upper cover plate, the sand
The inside of leakage spring is fitted with the partition that the hourglass spring is divided into multilayered structure；With the upper cover plate and the hourglass bullet
Spring is tightly connected respectively, and the air bag of confined space is formed with the upper cover plate and the hourglass spring.
Authorization Notice No. is CN204309790U, and authorized announcement date is that the Chinese utility model patent on May 6th, 2015 is public
A kind of Air spring for rail traffic has been opened, has sealed fixed connect including the upper cover plate being fixedly connected with the vehicle body and with the upper cover plate
The air bag connect；Further comprise: the hourglass spring assembly connecting with the air sac sealing, the hourglass spring assembly includes hourglass
Spring and the limiting component for being set to its inside, the limiting component includes the hard boss extended downwardly, the hard boss
Height be less than the hourglass spring height, and the difference in height of the two be the hourglass spring assembly backstop gap, it is described
Gap between upper cover plate and the hourglass spring assembly is spatial joint clearance, the spatial joint clearance and the hourglass spring assembly
The sum of backstop gap is equal to the largest amount of subsidence that the car body allows.
Authorization Notice No. is CN205256339U, and authorized announcement date is the Chinese utility model patent on May 25th, 2016
A kind of articulated bogie air spring is disclosed, from top to bottom includes upper cover plate, air bag and hourglass spring, the upper son of air bag
Mouth is fixed with upper cover plate sealing, and the lower rim of the mouth of air bag and the spring sealed fixation of hourglass, the top and bottom of hourglass spring fill respectively
There are pressing plate and support base, the pressing plate is placed in air bag, and in " convex " font to raise upward, the support base is along water
Square to stacked conducting plate support base, the top radius of the pressing plate is less than the top radius of hourglass spring, the sand
The central axes of leakage spring are overlapped with the central axes of pressing plate and the central axes of support base.
It is entirely to reach sealing using the interference compression of rim of the mouth rubber on air bag in the air spring of above patent document
Effect, air bag rim of the mouth size, upper cover plate flatness and retaining ring size require stringent when there is processing, and it is difficult to manufacture and examine
Spend the problems such as larger.
To sum up, a kind of air bag sub-mouth sealing method for how designing yeast bellows type air spring makes it guarantee to seal
Property under the premise of, the requirement to air bag rim of the mouth size, upper cover plate flatness and retaining ring size can be reduced, thus reduce manufacture and
Examining difficulty is technical problem urgently to be solved.
Summary of the invention
It is empty the technical problem to be solved by the present invention is in view of the deficiencies in the prior art, provide a kind of big curve sac type
The air bag sub-mouth sealing method of gas spring can be reduced to air bag rim of the mouth size, upper cover plate on the premise of ensuring tightness
The requirement of flatness and retaining ring size, to reduce manufacture and examine difficulty.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of gas of yeast bellows type air spring
Capsule sub-mouth sealing method is that rim of the mouth on air bag is first arranged to rim of the mouth ontology on cricoid air bag, air bag sub-mouth sealing
Connection ring three parts in rim of the mouth on circle and air bag, air bag sub-mouth sealing circle are located at the outer fix of rim of the mouth ontology on air bag, gas
It is linked into an integrated entity between rim of the mouth ontology and air bag sub-mouth sealing circle by rim of the mouth connection ring on air bag on capsule；It again will be sub on air bag
Mouthful be installed between upper cover plate and retaining ring, by screw by upper cover plate together with fastening-ring locking, utilize upper cover plate and retaining ring pressure
Tight air bag sub-mouth sealing circle makes air bag sub-mouth sealing circle form interference compression, to realize the sealing in rim of the mouth on air bag.
Preferably, according to different working condition requirements, after the position of retaining ring groove is set, pass through rim of the mouth on setting air bag
The radial width of connection ring is accurately positioned air bag sub-mouth sealing circle along the position of retaining ring radially.
Preferably, it is chosen by the material to air bag sub-mouth sealing circle to adapt to the sealing under different operating environment
Property require.
Preferably, under cold working environment, the preferable rubber of resistance to low temperature is can be used in air bag sub-mouth sealing circle
Material or under high temperature environment, the preferable rubber material of heat resistance can be used in air bag sub-mouth sealing circle.
Preferably, retaining ring includes ring body and the hook part that is arranged on ring body inside portion, hook part and ring body inside portion it
Between constitute retaining ring hook groove portion, ring body groove is provided on the top surface of ring body, the hook groove of retaining ring is arranged in rim of the mouth ontology on air bag
In portion, rim of the mouth connection ring is arranged in ring body groove on air bag sub-mouth sealing circle and air bag, and when being sealed, screw will be upper
Cover board is in contact by the top of air bag sub-mouth sealing circle with upper cover plate together with fastening-ring locking, air bag sub-mouth sealing
The bottom of circle is in contact with the trench bottom of ring body groove, to form interference compression to air bag sub-mouth sealing circle.
Preferably, threaded hole is provided on the trench bottom of ring body groove, screw passes through upper cover plate and is screwed into ring body groove slot
In threaded hole on bottom, by upper cover plate and fastening-ring locking；When upper cover plate and fastening-ring locking, top surface and the upper cover plate phase of ring body
Contact, there are gaps one between the outside portion and screw of air bag sub-mouth sealing circle.
Preferably, it is additionally provided on one or more balloonet in the outer fix of air bag sub-mouth sealing circle
Mouth sealing ring；When balloonet sub-mouth sealing circle is one, balloonet sub-mouth sealing circle and air bag sub-mouth sealing circle it
Between linked into an integrated entity by rim of the mouth connection ring one on balloonet, when balloonet sub-mouth sealing circle is more than one quantity,
It is linked into an integrated entity between more than one balloonet sub-mouth sealing circle by rim of the mouth connection ring two on balloonet, it then will connection
More than one balloonet sub-mouth sealing circle after integral is close by rim of the mouth connection ring one on balloonet and rim of the mouth on air bag
It links into an integrated entity between seal；
By screw by upper cover plate together with fastening-ring locking, utilize upper cover plate and retaining ring to compress air bag sub-mouth sealing circle
Make air bag sub-mouth sealing circle and one or more secondary gas with one or more balloonet sub-mouth sealing circle
Nang Shangzikoumifengquan forms interference compression, to realize the sealing in rim of the mouth on air bag.
Preferably, according to different working condition requirements, after the position of retaining ring groove is set, pass through rim of the mouth on setting air bag
In the radial width of connection ring, balloonet on the radial width of rim of the mouth connection ring one and balloonet rim of the mouth connection ring two it is radially-wide
Degree comes to air bag sub-mouth sealing circle and one or more balloonet sub-mouth sealing circle in the position along retaining ring radially
It sets and is accurately positioned.
Preferably, pass through the material to air bag sub-mouth sealing circle and one or more balloonet sub-mouth sealing circle
Matter is chosen to adapt to the sealing requirements under different operating environment.
Preferably, under cold working environment, air bag sub-mouth sealing circle and balloonet sub-mouth sealing circle be can be used
The preferable rubber material of resistance to low temperature or under high temperature environment, air bag sub-mouth sealing circle and balloonet sub-mouth sealing circle can
Using the preferable rubber material of heat resistance.
The beneficial effects of the present invention are: the present invention to abandon by rubber at rim of the mouth on upper cover plate and retaining ring extruding gasbag
Structure be sealed, but rim of the mouth outside portion makes one and the air bag sub-mouth sealing of rim of the mouth one on air bag on air bag
Circle does not carry out interference compression to rim of the mouth on air bag, but carries out by upper cover plate with retaining ring compressing gasbag sub-mouth sealing circle
Sealing can thus be reduced to air bag rim of the mouth size, upper cover plate flatness and retaining ring size on the premise of ensuring tightness
Requirement, thus reduce manufacture and examine difficulty.By the way that the radial width of rim of the mouth connection ring on air bag, energy is accurately arranged
According to different requirements, Nang Shangzikoumifengquan is realized in the accurate positioning along retaining ring radially, to realize that seal member is being detained
The accurate positioning of ring radially.According to different working environments, carried out by the material to air bag sub-mouth sealing circle different
It chooses, so that the yeast bellows type air spring in the present invention had not only adapted to low temperature environment but also adapted to hot environment, to improve
The applicability of entire yeast bellows type air spring.By two opposite planes come the top of extruding gasbag sub-mouth sealing circle
With bottom realize air bag sub-mouth sealing circle interference compression, when further reduced processing and manufacturing, to air bag rim of the mouth size,
The requirement of upper cover plate flatness and retaining ring size, to further reduced manufacture and examine difficulty.
Detailed description of the invention
Fig. 1 is a kind of existing air bag sub-mouth sealing structural schematic diagram of yeast bellows type air spring；
Fig. 2 is the sealed structural schematic diagram in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram in rim of the mouth on air bag in the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of retaining ring in the embodiment of the present invention 1；
Fig. 5 is the partial structural diagram being located at air bag sub-mouth sealing circle in Fig. 2；
Fig. 6 is the structural schematic diagram in rim of the mouth on air bag in the embodiment of the present invention 2；
Fig. 7 is the structural schematic diagram in rim of the mouth on air bag in the embodiment of the present invention 3；
Fig. 8 is the structural schematic diagram in rim of the mouth on air bag in the embodiment of the present invention 4；
Fig. 9 is the structural schematic diagram in rim of the mouth on air bag in the embodiment of the present invention 5；
Figure 10 is the sealed structural schematic diagram in the embodiment of the present invention 5；
Figure 11 is the partial structural diagram being located at balloonet sub-mouth sealing circle in Figure 10；
In figure: 1. screws, rim of the mouth on 2. air bags, rim of the mouth ontology on 211. air bags, 212. air bag sub-mouth sealing circles,
Rim of the mouth connection ring on 213. air bags, 3. upper cover plates, 4. retaining rings, 411. ring bodies, 412. hook parts, 5. hook groove portions, 6. rings
Body groove, 7. threaded holes, 8. top surfaces, 9. balloonet sub-mouth sealing circles, rim of the mouth connection ring one on 10. balloonets, 11.
D1. on air bag rim of the mouth connection ring radial width, the radial width of rim of the mouth connection ring one, L1. on D2. balloonet
Gap one, the gap L2. two.
Specific embodiment
Further details of elaboration is done to technical solution of the present invention in the following with reference to the drawings and specific embodiments.
Embodiment 1: as shown in Figures 2 and 3, a kind of air bag sub-mouth sealing method of yeast bellows type air spring is
Rim of the mouth 2 on air bag is first arranged to rim of the mouth ontology 211 on cricoid air bag, rim of the mouth on air bag sub-mouth sealing circle 212 and air bag
213 3 parts of connection ring, air bag sub-mouth sealing circle 212 are located at the outer fix of rim of the mouth ontology 211 on air bag, son on air bag
It is linked into an integrated entity between mouth ontology 211 and air bag sub-mouth sealing circle 212 by rim of the mouth connection ring 213 on air bag；Again by air bag
Upper rim of the mouth 2 is installed between upper cover plate 3 and retaining ring 4, is locked together upper cover plate 3 and retaining ring 4 by screw 1, is utilized upper cover
Plate 3 and retaining ring 4, which compress air bag sub-mouth sealing circle 212, makes air bag sub-mouth sealing circle 212 form interference compression, to realize gas
The sealing in rim of the mouth on capsule.Rim of the mouth connection ring 213 on air bag sub-mouth sealing circle 212 and air bag, rim of the mouth ontology 211 is one on air bag
Body structure, can be using vulcanization or injection moulding.In existing yeast bellows type air spring, as shown in Figure 1, rim of the mouth on air bag
It is mounted in the hook groove portion 5 of retaining ring, when being sealed, is that upper cover plate 3 and retaining ring 4 are locked by screw 1, utilizes the hook of retaining ring
The bottom and top in rim of the mouth 2 are squeezed from air bag respectively for groove portion 5 and upper cover plate 3, so that rim of the mouth 2 forms interference pressure on air bag
Contracting, thus realize sealing, it is therefore, more demanding to air bag rim of the mouth size, upper cover plate flatness and retaining ring size, wherein appointing
The machining accuracy of what component, which does not reach requirement, will make entire yeast bellows type air spring there are gas leakage risks, so that gas
Capsule is scrapped.And the present embodiment by structure design, abandon by upper cover plate and retaining ring extruding gasbag at rim of the mouth rubber knot
Structure is sealed, but rim of the mouth outside portion makes the air bag sub-mouth sealing circle of one with rim of the mouth one on air bag on air bag,
Interference compression is not carried out to rim of the mouth on air bag, but is carried out by upper cover plate with retaining ring compressing gasbag sub-mouth sealing circle close
Envelope can thus be reduced to air bag rim of the mouth size, upper cover plate flatness and retaining ring size on the premise of ensuring tightness
It is required that reduce manufacture and examine difficulty.
According to different working condition requirements, after the position of retaining ring groove 5 is set, pass through rim of the mouth connection ring on setting air bag
Radial width D1 air bag sub-mouth sealing circle 212 is accurately positioned along the position of retaining ring radially.Seal member
Be in the positioning of retaining ring radially it is highly important, in the prior art, seal member be air bag on rim of the mouth, retaining ring radial direction
On positioning mainly completed by the way that the position of retaining ring groove is arranged, be so often a kind of coarse positioning, Wu Fashi
It is now accurately positioned, and in the present embodiment, seal member is air bag sub-mouth sealing circle, son on rim of the mouth ontology and air bag on air bag
It is to be connected between mouth sealing ring by rim of the mouth connection ring on air bag, after the position of retaining ring groove is set, as long as
By the way that the radial width D of rim of the mouth connection ring on air bag is accurately arranged, Nang Shangzikoumifengquan can be realized according to different requirements
In the accurate positioning along retaining ring radially, to realize the accurate positioning of seal member radially in retaining ring.
It is chosen by the material to air bag sub-mouth sealing circle to adapt to the sealing requirements under different operating environment.
It is found by the applicant that rubber can be shunk because being cooled in temperature lower than under being more than -30 DEG C of cold environments, and made since rubber crystallizes
At flexibility decrease, the structure of air bag rim of the mouth rubber interference compression seal is relied in the prior art, will appear in cold environments close
The decline of envelope compression magnitude of interference, sealing effect reduce, and there are the risks of gas leakage.Conversely, under the higher environment of temperature, due to rubber
The characteristic of glue can also have the above problem.And rim of the mouth does not seal on the air bag in the present embodiment, sealing function is mainly
It is realized by air bag sub-mouth sealing circle, therefore, the sealing structure of the present embodiment can select on air bag according to use environment
The material of rim of the mouth sealing ring, design seal compression are come so that the present embodiment had not only adapted to low temperature environment but also adapted to high temperature ring
Border, to improve the applicability of entire yeast bellows type air spring, i.e., by connecting to rim of the mouth on rim of the mouth ontology on air bag, air bag
It connects ring and air bag sub-mouth sealing circle chooses different materials to adapt to the sealing requirements under different operating environment, such as in this reality
It applies in example, for suitable for cold environment, ordinary rubber material is can be used in rim of the mouth connection ring on rim of the mouth ontology and air bag on air bag, such as
Natural rubber, neoprene etc., and the preferable rubber material of resistance to low temperature can be used in air bag sub-mouth sealing circle, such as silicon rubber
Glue, ethylene propylene diene rubber etc.；For suitable for hot environment, rim of the mouth connection ring be can be used generally on rim of the mouth ontology and air bag on air bag
Rubber material, such as natural rubber, neoprene, and the preferable rubber material of heat resistance can be used in air bag sub-mouth sealing circle
Matter, such as fluorubber, fluorine silicone rubber.
As shown in Figures 2 to 4, retaining ring 4 includes ring body 411 and the hook part 412 being arranged on 411 inside portion of ring body, ring
Body 411 and hook part 412 be it is integrated, between 411 inside portion of hook part 412 and ring body constitute retaining ring hook groove portion 5, retaining ring
Hook groove portion 5 matches with rim of the mouth ontology 211 on air bag, and ring body groove 6 is provided on the top surface of ring body 411, rim of the mouth sheet on air bag
Body 211 is arranged in the hook groove portion 5 of retaining ring, and rim of the mouth connection ring 213 is arranged in ring body on air bag sub-mouth sealing circle 212 and air bag
In groove 6, when upper cover plate 3 and retaining ring 4 are locked together by screw 1, top and upper cover by air bag sub-mouth sealing circle 212
Plate 3 is in contact, and the bottom of air bag sub-mouth sealing circle 212 is in contact with the trench bottom of ring body groove 6, thus to rim of the mouth on air bag
Sealing ring 212 forms interference compression.Due to the upper cover plate being in contact at the top of air bag sub-mouth sealing circle and with it is sub on air bag
The ring body bottom portion of groove of the bottom connection touching of mouth sealing ring is entirely plane, is by two opposite planes come extruding gasbag
The interference compression of air bag sub-mouth sealing circle is realized in the top and bottom of sub-mouth sealing circle, rather than as being to pass through button in the past
The hook groove portion of ring and upper cover plate come the bottom and top in rim of the mouth on air bag realize rim of the mouth on air bag interference compression, therefore,
When this just further reduced processing and manufacturing, requirement to air bag rim of the mouth size, upper cover plate flatness and retaining ring size, thus
It further reduced manufacture and examine difficulty.In addition, the present embodiment does not have to redesign upper cover plate in existing empty spring system and buckles
The structure of ring can be achieved with dropping the improvement of air bag sub-mouth sealing structure in existing empty spring system significantly as long as being modified slightly
Low improvement cost.
As shown in Figure 4 and Figure 5, threaded hole 7 is provided on the trench bottom of ring body groove 6, screw 1 passes through upper cover plate 3 and is screwed into
In threaded hole 7 on to ring body groove trench bottom, upper cover plate 3 and retaining ring 4 are locked；When upper cover plate 3 and retaining ring 4 are locked, ring
The top surface 8 of body 411 is in contact with upper cover plate 3, and there are gaps one between the outside portion and screw 1 of air bag sub-mouth sealing circle 212
(L1), this structure can make sealing effect more preferable.The outside portion of air bag sub-mouth sealing circle 212 and the ring on the outside of ring body
There are gap two (L2), L2 > L1 between 6 one side channel side of body groove.Threaded hole 7 is provided on the trench bottom of ring body groove 6
Multiple, multiple threaded holes 7 are sequentially distributed on the trench bottom of ring body groove 6 along the circumferential direction of ring body, correspondingly, screw 1 is also provided with
Have multiple.
As shown in figure 3, rim of the mouth ontology 211 connects on the inside portion of rim of the mouth connection ring 213 and air bag on the air bag, it is described
The outside portion of rim of the mouth connection ring 213 and the air bag sub-mouth sealing circle being located at the top of air bag sub-mouth sealing circle on air bag
The connection of 212 inside portions.It is simpler that this structure makes on entire air bag rim of the mouth molding get up.
Along the axial direction of air bag sub-mouth sealing circle, the section of air bag sub-mouth sealing circle 212 is provided in round.
Embodiment 2: as shown in fig. 6, compared with Example 1, the difference is that: along the axis of air bag sub-mouth sealing circle
To the section of air bag sub-mouth sealing circle 212 is set as ellipse.
Embodiment 3: as shown in fig. 7, compared with Example 1, the difference is that: along the axis of air bag sub-mouth sealing circle
To it is rectangular-shaped that the section of air bag sub-mouth sealing circle 212 is set as rectangle or square etc..
Embodiment 4: as shown in figure 8, compared with Example 1, the difference is that: rim of the mouth connection ring 213 on the air bag
Inside portion and air bag on rim of the mouth ontology 211 connect, on the air bag outside portion of rim of the mouth connection ring 211 be located at close to air bag
212 inside portion of air bag sub-mouth sealing circle of sub-mouth sealing circle bottom connects.It can be further ensured that entire big curve sac type in this way
The leakproofness of air spring.
Embodiment 5: as shown in Figure 9 and Figure 10, compared with Example 1, the difference is that: in air bag sub-mouth sealing circle
212 outer fix is additionally provided with a balloonet sub-mouth sealing circle 9；Rim of the mouth on balloonet sub-mouth sealing circle 9 and air bag
It is linked into an integrated entity between sealing ring 212 by rim of the mouth connection ring 1 on balloonet；
Upper cover plate 3 and retaining ring 4 are locked together by screw 1, compress rim of the mouth on air bag using upper cover plate 3 and retaining ring 4
Sealing ring 212 and a balloonet sub-mouth sealing circle 9 make air bag sub-mouth sealing circle 212 and a balloonet sub-mouth sealing
Circle 9 forms interference compression, to realize the sealing in rim of the mouth on air bag.This structure can be further ensured that yeast bellows type air spring
Sealing performance.
According to different working condition requirements, after the position of retaining ring groove is set, pass through rim of the mouth connection ring on setting air bag
Radial width D1 and balloonet on the radial width D2 of rim of the mouth connection ring one come on air bag sub-mouth sealing circle and balloonet
Rim of the mouth sealing ring is accurately positioned along the position of retaining ring radially.
It is chosen by the material to air bag sub-mouth sealing circle and a balloonet sub-mouth sealing circle to adapt to not
With the sealing requirements under working environment.
Under cold working environment, rim of the mouth ontology on air bag, rim of the mouth connection ring is connected with rim of the mouth on balloonet on air bag
Ordinary rubber material, such as natural rubber, neoprene, son on air bag sub-mouth sealing circle and a balloonet can be used in ring one
The preferable rubber material of resistance to low temperature, such as silicon rubber, ethylene propylene diene rubber can be used in mouth sealing ring.
Under high temperature environment, rim of the mouth ontology on air bag, rim of the mouth connection ring one can on rim of the mouth connection ring and balloonet on air bag
Using ordinary rubber material, such as natural rubber, neoprene, air bag sub-mouth sealing circle and a balloonet sub-mouth sealing
The preferable rubber material of heat resistance, such as fluorubber, fluorine silicone rubber can be used in circle.
As shown in figure 11, threaded hole 7 is provided on the trench bottom of ring body groove 6, screw 1 passes through upper cover plate 3 and is screwed into ring
In threaded hole 7 on body groove trench bottom, upper cover plate 3 and retaining ring 4 are locked；When upper cover plate 3 and retaining ring 4 are locked, ring body 411
Top surface 8 be in contact with upper cover plate 3, there are gap one (L1) between the outside portion and screw of balloonet sub-mouth sealing circle 9, this
Kind structure can make sealing effect more preferable.The outside portion of balloonet sub-mouth sealing circle and the ring body groove one on the outside of ring body
There are gap two (L2), L2 > L1 between side channel side.
Embodiment 6: compared with Example 1, the difference is that: it is also set up in the outer fix of air bag sub-mouth sealing circle
There is more than one balloonet sub-mouth sealing circle；Pass through son on balloonet between more than one balloonet sub-mouth sealing circle
Mouth connection ring two links into an integrated entity, and the more than one balloonet sub-mouth sealing circle after then linking into an integrated entity passes through secondary gas
It links into an integrated entity between rim of the mouth connection ring one and air bag sub-mouth sealing circle on capsule；
By screw by upper cover plate together with fastening-ring locking, utilize upper cover plate and retaining ring to compress air bag sub-mouth sealing circle
Make air bag sub-mouth sealing circle and more than one balloonet sub-mouth sealing with more than one balloonet sub-mouth sealing circle
Circle forms interference compression, to realize the sealing in rim of the mouth on air bag.This structure can be further ensured that yeast bellows type air spring
Sealing performance.
According to different working condition requirements, after the position of retaining ring groove is set, pass through rim of the mouth connection ring on setting air bag
Radial width D1, on balloonet on the radial width D2 and balloonet of rim of the mouth connection ring one rim of the mouth connection ring two radial width
D3 is accurately positioned air bag sub-mouth sealing circle and balloonet sub-mouth sealing circle along the position of retaining ring radially.
By the material to air bag sub-mouth sealing circle and more than one balloonet sub-mouth sealing circle chosen come
Adapt to the sealing requirements under different operating environment.
Under cold working environment, air bag sub-mouth sealing circle and more than one balloonet sub-mouth sealing circle can be adopted
With the preferable rubber material of resistance to low temperature, such as silicon rubber, ethylene propylene diene rubber.
Under high temperature environment, air bag sub-mouth sealing circle and more than one balloonet sub-mouth sealing circle can be used heat-resisting
The rubber material of better performances, such as fluorubber, fluorine silicone rubber.
Threaded hole is provided on the trench bottom of ring body groove, screw passes through upper cover plate and is screwed on ring body groove trench bottom
In threaded hole, by upper cover plate and fastening-ring locking；When upper cover plate and fastening-ring locking, ring body top surface is in contact with upper cover plate, near
There are gap one (L1) between the balloonet sub-mouth sealing circle and screw of the external side of near-ring, this structure can to seal
Effect is more preferable.The outside portion of a balloonet sub-mouth sealing circle on the outside of ring body and the ring body on the outside of ring body are recessed
There are gap two (L2), L2 > L1 between one side channel side of slot.
To sum up, the present invention is abandoned by the structure of rubber is sealed at rim of the mouth on upper cover plate and retaining ring extruding gasbag,
But rim of the mouth outside portion makes the air bag sub-mouth sealing circle of one with rim of the mouth one on air bag on air bag, not to sub on air bag
Mouthful interference compression is carried out, but is sealed with retaining ring compressing gasbag sub-mouth sealing circle by upper cover plate, it thus can be
Under the premise of guaranteeing leakproofness, the requirement to air bag rim of the mouth size, upper cover plate flatness and retaining ring size is reduced, to reduce
Manufacture and examine difficulty.It, can be real according to different requirements by the way that the radial width of rim of the mouth connection ring on air bag is accurately arranged
Existing Nang Shangzikoumifengquan in the accurate positioning along retaining ring radially, thus realize seal member retaining ring radially it is accurate calmly
Position.According to different working environments, different selections is carried out by the material to air bag sub-mouth sealing circle, so that in the present invention
Yeast bellows type air spring not only adapted to low temperature environment but also adapted to hot environment, to improve entire big curve sac type air
The applicability of spring.Son on air bag is realized by two opposite planes come the top and bottom of extruding gasbag sub-mouth sealing circle
The interference compression of mouth sealing ring, when further reduced processing and manufacturing, to air bag rim of the mouth size, upper cover plate flatness and buckle
The requirement of ring size, to further reduced manufacture and examine difficulty.
" multiple " described in the present embodiment refer to the quantity of " two or more ".Above embodiments are only for illustrating this
Invention is used, rather than limitation of the present invention, and person skilled in the relevant technique is not departing from the spirit and scope of the present invention
In the case where, it can also make a variety of changes or convert, therefore all equivalent technical solutions also should belong to guarantor of the invention
Range is protected, protection scope of the present invention should be limited by each claim.
Claims (7)
1. a kind of air bag sub-mouth sealing method of yeast bellows type air spring, it is characterised in that: first rim of the mouth on air bag is arranged
Connection ring three parts in rim of the mouth on rim of the mouth ontology, air bag sub-mouth sealing circle and air bag on air bag circlewise, rim of the mouth on air bag
Sealing ring is located at the outer fix of rim of the mouth ontology on air bag, passes through gas between rim of the mouth ontology and air bag sub-mouth sealing circle on air bag
Rim of the mouth connection ring links into an integrated entity on capsule；Rim of the mouth on air bag is installed between upper cover plate and retaining ring again, by screw by upper cover
For plate together with fastening-ring locking, compressing air bag sub-mouth sealing circle using upper cover plate and retaining ring forms air bag sub-mouth sealing circle
Interference compression, to realize the sealing in rim of the mouth on air bag；
According to different working condition requirements, after the position of retaining ring groove is set, pass through the diameter of rim of the mouth connection ring on setting air bag
Air bag sub-mouth sealing circle is accurately positioned along the position of retaining ring radially to width.
2. the air bag sub-mouth sealing method of yeast bellows type air spring according to claim 1, it is characterised in that: pass through
The material of air bag sub-mouth sealing circle is chosen to adapt to the sealing requirements under different operating environment.
3. the air bag sub-mouth sealing method of yeast bellows type air spring according to claim 2, it is characterised in that: retaining ring
Including ring body and the hook part being arranged on ring body inside portion, the hook groove portion of retaining ring is constituted between hook part and ring body inside portion,
Ring body groove is provided on the top surface of ring body, rim of the mouth ontology is arranged in the hook groove portion of retaining ring on air bag, air bag sub-mouth sealing
Rim of the mouth connection ring is arranged in ring body groove on circle and air bag, and when being sealed, screw is by upper cover plate and fastening-ring locking one
It rises, is in contact by the top of air bag sub-mouth sealing circle with upper cover plate, the bottom of air bag sub-mouth sealing circle and ring body groove
Trench bottom be in contact, thus to air bag sub-mouth sealing circle formed interference compression.
4. the air bag sub-mouth sealing method of yeast bellows type air spring according to claim 3, it is characterised in that: in ring
Threaded hole is provided on the trench bottom of body groove, screw passes through upper cover plate and is screwed into the threaded hole on ring body groove trench bottom, will
Upper cover plate and fastening-ring locking；When upper cover plate and fastening-ring locking, the top surface of ring body is in contact with upper cover plate, air bag sub-mouth sealing
There are gaps one between the outside portion and screw of circle.
5. the air bag sub-mouth sealing method of yeast bellows type air spring according to claim 1, it is characterised in that: in gas
The outer fix of Nang Shangzikoumifengquan is additionally provided with one or more balloonet sub-mouth sealing circle；When on balloonet
When rim of the mouth sealing ring is one, connected between balloonet sub-mouth sealing circle and air bag sub-mouth sealing circle by rim of the mouth on balloonet
Ring one is connect to link into an integrated entity, when balloonet sub-mouth sealing circle is more than one quantity, son on more than one balloonet
It is linked into an integrated entity between mouth sealing ring by rim of the mouth connection ring two on balloonet, it is more than one after then linking into an integrated entity
Balloonet sub-mouth sealing circle on balloonet between rim of the mouth connection ring one and air bag sub-mouth sealing circle by linking into an integrated entity；
By screw by upper cover plate together with fastening-ring locking, utilize upper cover plate and retaining ring to compress air bag sub-mouth sealing circle and one
A or more than one balloonet sub-mouth sealing circle makes on air bag sub-mouth sealing circle and one or more balloonet
Rim of the mouth sealing ring forms interference compression, to realize the sealing in rim of the mouth on air bag.
6. the air bag sub-mouth sealing method of yeast bellows type air spring according to claim 5, it is characterised in that: according to
Different working condition requirements pass through radial width, the pair of rim of the mouth connection ring on setting air bag after the position of retaining ring groove is set
On air bag on the radial width of rim of the mouth connection ring one and balloonet the radial width of rim of the mouth connection ring two come it is close to rim of the mouth on air bag
Seal and one or more balloonet sub-mouth sealing circle are accurately positioned along the position of retaining ring radially.
7. the air bag sub-mouth sealing method of yeast bellows type air spring according to claim 6, it is characterised in that: pass through
The material of air bag sub-mouth sealing circle and one or more balloonet sub-mouth sealing circle is chosen to adapt to not
With the sealing requirements under working environment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017585.1A CN106641079B (en) | 2017-01-11 | 2017-01-11 | A kind of air bag sub-mouth sealing method of yeast bellows type air spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017585.1A CN106641079B (en) | 2017-01-11 | 2017-01-11 | A kind of air bag sub-mouth sealing method of yeast bellows type air spring |
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| Publication Number | Publication Date |
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| CN106641079A CN106641079A (en) | 2017-05-10 |
| CN106641079B true CN106641079B (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710017585.1A Active CN106641079B (en) | 2017-01-11 | 2017-01-11 | A kind of air bag sub-mouth sealing method of yeast bellows type air spring |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111120562B (en) * | 2020-01-06 | 2021-04-16 | 株洲时代瑞唯减振装备有限公司 | Sealing method and structure for upper seam allowance of low-temperature-resistant air spring |
| CN113829628B (en) * | 2021-09-27 | 2023-03-31 | 大连海事大学 | Packaging device for bonding end faces of air bags |
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| DE102005032193A1 (en) * | 2005-07-09 | 2007-01-11 | Carl Freudenberg Kg | System for attaching rolling lobe to connector in air springs comprises deformable locking ring on outside of lobe, O-ring being fitted between inner surface of lobe and connector |
| CN201434037Y (en) * | 2009-06-10 | 2010-03-31 | 无锡锡南铸造机械有限公司 | Air spring clamping device |
| CN202203317U (en) * | 2011-08-10 | 2012-04-25 | 青岛欧美亚橡胶工业有限公司 | Flange sealed type rubber air spring |
| CN204099478U (en) * | 2014-09-01 | 2015-01-14 | 青岛思锐科技有限公司 | High and cold rail motor set pneumatic spring |
| WO2015139854A1 (en) * | 2014-03-21 | 2015-09-24 | Contitech Luftfedersysteme Gmbh | Cold-resistant air spring device |
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|---|---|---|---|---|
| DE102005032193A1 (en) * | 2005-07-09 | 2007-01-11 | Carl Freudenberg Kg | System for attaching rolling lobe to connector in air springs comprises deformable locking ring on outside of lobe, O-ring being fitted between inner surface of lobe and connector |
| CN201434037Y (en) * | 2009-06-10 | 2010-03-31 | 无锡锡南铸造机械有限公司 | Air spring clamping device |
| CN202203317U (en) * | 2011-08-10 | 2012-04-25 | 青岛欧美亚橡胶工业有限公司 | Flange sealed type rubber air spring |
| WO2015139854A1 (en) * | 2014-03-21 | 2015-09-24 | Contitech Luftfedersysteme Gmbh | Cold-resistant air spring device |
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| Publication number | Publication date |
|---|---|
| CN106641079A (en) | 2017-05-10 |
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Effective date of registration: 20200610 Address after: 412007 No.301, physical and chemical building, Liyu Industrial Park, no.639, Heilongjiang Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: Zhuzhou Times Ruiwei damping equipment Co., Ltd Address before: 412007 No. 18 Haitian Road, Tianyuan District, Hunan, Zhuzhou Patentee before: Zhuzhou Times New Material Technology Co.,Ltd. |