CN106567901B - A kind of pincushion low frequency air bag vibration isolator and its installation method - Google Patents
A kind of pincushion low frequency air bag vibration isolator and its installation method Download PDFInfo
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- CN106567901B CN106567901B CN201510642831.3A CN201510642831A CN106567901B CN 106567901 B CN106567901 B CN 106567901B CN 201510642831 A CN201510642831 A CN 201510642831A CN 106567901 B CN106567901 B CN 106567901B
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Abstract
The invention discloses a kind of pincushion low frequency air bag vibration isolator and its installation methods.Pincushion low frequency air bag vibration isolator includes air bag, upper cover plate, upper retaining ring, lower retaining ring, lower cover, support plate one, support plate two；Support plate one, support plate two are respectively positioned in air bag；Support plate one and support plate two are installed on lower retaining ring；Air bag includes being connected in turn from the inside to the outside three layers：Inner glue layer, intermediate casing ply, outer glue-line.Support plate one and support plate two are fixedly mounted on lower retaining ring, and limited block is fixed on upper cover plate and upper retaining ring.Installation method includes the following steps：Installing retaining ring；Support plate is installed；Lower cover is installed；Limited block is installed；Upper cover plate is installed.Pincushion low frequency air bag vibration isolator structure of the invention is compact, size is small, light weight（Weight 45kg or so）；The natural frequency of vibration is low, and it is good to subtract vibration isolating effect（The natural frequency of vibration is less than 3.5Hz）, reduce manufacturing cost；Be conducive to national defense safety.
Description
Technical field
The present invention relates to noise reduction technology fields.
Background technology
Naval vessels action concealment is mainly determined that wherein equipment technology is base by two aspects of tactical application and equipment technology
Plinth.Due at present and within the following considerable time sonar be still search, discovery and attack the most important equipment of naval vessels,
Therefore it is to improve the concealed important means of naval vessels action to reduce noise.Modern naval vessels are widely used for various types of vibration damping drops
Equipment of making an uproar and element, noise level are greatly lowered.Mainly there is three classes damper at present：Metal spring damper, rubber-metal
Damper, air bag vibration isolator.
According to the self-vibration after equipment mounting dampers（Inherently）Frequency（f0）Naval vessels were roughly divided into for 4 generations with damper.1st
F can be used for damper0It is reduced to 30Hz；2nd generation damper can use f0It is reduced to 15~18Hz；3rd generation damper can use
f0It is reduced to 4~8Hz；4th generation damper can use f0It is reduced to 2.5Hz.The a few countries such as current Russia, the U.S. are
Have developed the 4th generation damper.
Compared with metal spring damper, rubber-metal damper, air bag vibration isolator（Also referred to as air spring）It is to press
Contracting gas（Usually air）As working media, there is high flexibility, the natural frequency of vibration is low, highly controllable, and it is excellent that standard termination is big etc.
Point is now widely used on the AIRMATIC Dual Controls such as rail truck, automobile.Air bag vibration isolator be relatively specific for large scale equipment or
The integral vibration damping of bay section as a whole.Also the feature more than being based on, the 5th generation damper of naval vessels（Less than 2.5Hz）Most have
The damping technology scheme that may be used is to use air bag vibration isolator.
Currently, home and abroad is suitable for, the air bag vibration isolator structure size that naval vessels use is big, and complicated, weight is big, no
Arrangement conducive to small space in naval vessels cabin and use.Home and abroad typical case's air bag vibration isolator basic parameter is as shown in table 1 below.
Table 1:Home and abroad typical case's air bag vibration isolator basic parameter
In the prior art, application No. is the utility models of CN200620096279 to disclose a kind of big bearing capacity, Gao Ke
By property, impact-resisting air-bag vibration isolator.Plate bowl-type protects the rim of a bowl of flange opposite with capsule, and the bowl back side is fastened by bolts in interior method
Lan Shang inside has the capsule of filler to be made of inner glue layer, aramid fiber casing play and outer glue-line, and the aramid fiber casing play of capsule is along intermediate method
Orchid is fixed after unrolling by inner flange and outward flange, and the above, the lower lid has sealing ring with outward flange junction, passes through bolt and inner flange
Sealing ring, aramid fiber casing play are locked in connection.Application No. is a kind of novel air bullets of the disclosure of the invention of CN201410091909
Spring, including：It is vertically connected with plate, air bag, conveyance conduit, ball valve, compressed spring and photoelectric sensor, the air bag is arranged upper and lower
Among connecting plate, the conveyance conduit is arranged in upper junction plate, and the ball valve is arranged inside conveyance conduit, the compression bullet
Spring is arranged inside air bag, and the photoelectric sensor is arranged on lower connecting plate.The above prior art, damping property have
It waits for further.
Invention content
Small, light-weight, the low natural frequency of vibration that it is an object of the present invention to provide a kind of sizes subtracts the superior pincushion of anti-vibration performance
Low frequency air bag vibration isolator and its installation method.
The technical scheme is that：A kind of pincushion low frequency air bag vibration isolator, including air bag, upper cover plate, upper retaining ring, lower buckle
Ring, lower cover, support plate one, support plate two, the air bag include upper rim of the mouth and lower rim of the mouth；The upper cover plate is connected with upper retaining ring
Rim of the mouth on air bag, the lower retaining ring connect rim of the mouth under air bag with lower cover；The support plate one, support plate two are respectively positioned on air bag
It is interior；Support plate one and support plate two are installed on lower retaining ring；The air bag includes three to be connected in turn from the inside to the outside
Layer：Inner glue layer, intermediate casing ply, outer glue-line.
The support plate one and support plate two-way are crossed trip bolt two and are fixedly mounted on lower retaining ring, and limited block passes through fastening
Screw three is fixedly mounted on upper cover plate and upper retaining ring.
The upper cover plate is connect by trip bolt one, upper retaining ring with air sac sealing, and the lower cover passes through trip bolt
One, lower retaining ring is connect with air sac sealing, and sealing space is formed in air bag；Rim of the mouth, upper cover plate, upper retaining ring joint on the air bag
For cone structure, rim of the mouth, lower retaining ring, lower cover joint are cone structure under air bag.
The pincushion low frequency air bag vibration isolator further includes air inlet pipe, and one end of air inlet pipe connects air bag, air inlet pipe it is another
End is equipped with the threaded hole for connecting air machinery；Be equipped on the upper cover plate and lower cover needs device for vibration insutation for connecting
Fixed mounting hole；The upper retaining ring and upper cover plate are connected by trip bolt one, and lower retaining ring passes through trip bolt one with lower cover
Connection.
The intermediate casing ply of the air bag uses common nylon or polyester cord；Support plate one and support plate two are all made of super
The vulcanized elastomer of High molecular weight polyethylene, high-elastic polyurethane materials or rubber and metal；Pincushion low frequency air bag vibration isolator
Appearance and size is：Length × width × height=420mm × 180 mm × 215mm；Air bag utricule thickness is 8mm, and air bag uses nylon curtain
Cloth；The volume that enclosure space is formed by between air bag and upper cover plate, lower cover, upper retaining ring, lower retaining ring is up to：4L；Upper cover
Plate, lower cover, upper retaining ring, lower retaining ring are all made of steelwork；Pincushion low frequency air bag vibration isolator gross weight：45kg.
The pincushion low frequency air bag vibration isolator further includes limited block, and limited block is mounted on upper cover plate and upper retaining ring, limit
The lower part of position block is inserted in the top in air bag and positioned at support plate two；The upper retaining ring and upper cover plate contact position, lower retaining ring with
Lower cover contact position, which vulcanizes, one layer of rubber.
It is equipped among the lower retaining ring convenient for being put into the hollow groove of support plate one or support plate two, the left part of lower retaining ring and the right side
Portion is equipped with one mounting groove of support plate for installing support plate one, and support plate one is mounted in one mounting groove of support plate；Lower button
The middle part of ring is equipped with two mounting groove of support plate for installing support plate two, and support plate two is mounted in two mounting groove of support plate.
A kind of installation method of pincushion low frequency air bag vibration isolator, includes the following steps：
S1：Installing retaining ring：Upper retaining ring is erect, along with plane on air bag in the oblique insertion air bag of 30 °~45° angle degree,
Upper retaining ring rotates horizontally 90 ° after fully entering in air bag, and rim of the mouth on air bag is assembled to upper retaining ring shoulder with wooden mallet；By lower retaining ring
It erects, is revolved along with air bag lower plane in the oblique insertion air bag of 30 °~45° angle degree, lower retaining ring is horizontal after fully entering in air bag
Turn 90 °, rim of the mouth under air bag is assembled to lower retaining ring shoulder with wooden mallet；
S2：Support plate is installed：One piece of support plate one is erect, is put into air bag along lower retaining ring hollow groove, by support plate one
It rotates horizontally after 90 ° and is mounted in one mounting groove of support plate of lower retaining ring left part in air bag, trip bolt two is used in combination to fix；So
The support plate one of lower retaining ring right part is installed using same method afterwards；Support plate two is erect, is put into along lower retaining ring hollow groove
In air bag, support plate two is rotated horizontally in air bag and is mounted on after 90 ° in two mounting groove of support plate in the middle part of lower retaining ring, is used in combination
Trip bolt two is fixed；
S3：Lower cover is installed：Lower cover is mounted on rim of the mouth under air bag in the following, being buckled lower cover with lower with trip bolt one
Ring is fixedly connected；
S4：Limited block is installed：Limited block is mounted in the middle part of upper retaining ring, limited block lower part is inserted into air bag；
S5：Upper cover plate is installed：Upper cover plate is mounted on air bag above rim of the mouth, is buckled upper cover plate with upper with trip bolt one
Ring is fixedly connected, and is used in combination trip bolt three that limited block is fixedly connected on upper cover plate and upper retaining ring；
S6：It is debugged, completes the installation of pincushion low frequency air bag vibration isolator.
Vulcanize one layer of rubber in upper retaining ring and upper cover plate contact position, lower retaining ring and lower cover contact position, by with fastening
One pretightning force of screw matches, and realizes compression seal.
Hollow structure is set in the middle part of lower retaining ring, facilitates insertion into support plate one and support plate two；It is arranged on lower retaining ring and uses
In the mounting groove of installation support plate one and support plate two, it is easy to implement the positioning of support plate and keeps stablizing；It is set on lower cover
Screw mounting groove is set, is convenient for the positioning of screw, prevents screw lateral shear.
Pincushion low frequency air bag vibration isolator structure of the invention is compact, size is small, light weight（Weight 45kg or so）；Self-vibration frequency
Rate is low, and it is good to subtract vibration isolating effect（The natural frequency of vibration is less than 3.5Hz）.The installation of pincushion low frequency air bag vibration isolator is simple and convenient.The present invention carries
Supplied a kind of completely new pillow-like shape form, it is light-weight, subtract the superior air bag vibration isolator of anti-vibration performance.In the item that voltage endurance capability meets
Under part, the present invention can be realized using common material, reduce manufacturing cost.The aramid fiber and carbon fibre material of high intensity are current
Domestic not ripe technology is produced, and place one's entire reliance upon import, and expensive（About 400~800 yuan/kg）, belong to state
Family's strategic materials, therefore the present invention is conducive to national defense safety.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pincushion low frequency air bag vibration isolator in the embodiment of the present invention.
Fig. 2 is the structural representation of the limited block and support plate two of the pincushion low frequency air bag vibration isolator in the embodiment of the present invention
Figure.
Fig. 3 is the pincushion low frequency air bag vibration isolator scheme of installation in the embodiment of the present invention.
Reference sign：1- upper cover plates, 2- trip bolts one, the upper retaining rings of 3-, 4- limited blocks, 5- air bags, 6- support plates
One, retaining ring, 9- lower covers, 10- trip bolts three, 11- support plates two under 7- trip bolts two, 8-.
Specific implementation mode
As depicted in figs. 1 and 2, a kind of pincushion low frequency air bag vibration isolator, air bag 5 include inner glue layer, intermediate casing ply, outer glue
Layer, upper rim of the mouth（Wire loop）, lower rim of the mouth（Wire loop）.Rim of the mouth, upper cover plate 1, upper retaining ring 3 pass through the conical surface on air bag（Angle）, lower son
Mouth, lower cover 9, lower retaining ring 8 pass through the conical surface（Angle）The air bag vibration isolator for forming self sealss closes working space, one 6 He of support plate
Support plate 2 11 is fixed on by trip bolt 27 on lower retaining ring 8, and limited block 4 is fixed on upper cover plate 1 by trip bolt 3 10
On upper retaining ring 3.Upper cover plate 1 connects upper retaining ring 3 by trip bolt 1, and lower cover 9 passes through one 2 times retaining rings of trip bolt 8.
Compressed air（Or other gases）It is filled in air bag by air inlet pipe, air inlet pipe thread hole is connect with air source, raft（Platform）Frame needs
Device for vibration insutation is connect with upper retaining ring threaded mounting hole.Pass through the fixed mounting hole and raft in the above, the lower lid with fastening bolt（Platform）
Frame needs device for vibration insutation substrate to be fixed.In present specification, rim of the mouth includes upper rim of the mouth and lower rim of the mouth, and retaining ring includes upper retaining ring
With lower retaining ring, support plate includes support plate one and support plate two, and cover board includes upper cover plate and lower cover.
The upper retaining ring and upper cover plate contact position, lower retaining ring and lower cover contact position vulcanizes one layer of rubber, by with
One pretightning force of trip bolt on cover board realizes compression seal, as shown in a in Fig. 3（It is only upper retaining ring and upper cover plate contact at a
Place）.
It is hollow structure, plate easy to support among lower retaining ring length direction（Including support plate one and support plate two）Peace
Dress.Mounting groove on lower retaining ring（Including two mounting groove of one mounting groove of support plate and support plate）It designs plate positioning easy to support and keeps
Stablize, as shown in b in Fig. 3.
The design of lower cover screwing mounting groove prevents screw lateral shear from causing brokenly convenient for the positioning of trip bolt mounting base
It is bad, as shown in c in Fig. 3.
Among air bag casing ply using 930 dtex/2 cords of common nylon or polyester cord specification, 1400dtex/2 or
1870 dtex/2.The volume size that enclosure space is formed by between air bag and upper cover plate, limited block, upper retaining ring determines gas
The performance of capsule vibration isolator, space get over that air vesicle vibration isolator rigidity is smaller, and the natural frequency of vibration is lower, it is possible thereby to be set by Rational structure
What meter reached system or equipment subtracts vibration isolation requirement.
The Horizontal limiting of pincushion low frequency air bag vibration isolator and vertical compression limit are realized by internal structure design.
Support plate is in addition to using ultra-high molecular weight polyethylene（UHMW-PE）Outside material, rubber and metal can also be used
Vulcanized elastomer or high-elastic polyurethane materials.
The installation method of pincushion low frequency air bag vibration isolator（As shown in Figure 3）：
1) upper retaining ring is erect, with plane on air bag along the oblique insertion air bag of 30 °~45° angle, retaining ring fully enters air bag
90 ° are rotated horizontally after interior, pay attention to the one side that upper retaining ring is in contact with upper cover plate upward.Air bag rim of the mouth is assembled to wooden mallet
Retaining ring shoulder, as shown in b in Fig. 3.Lower retaining ring is installed with similar method.
2) support plate one is erect, is stretched into air bag along lower retaining ring hollow groove, pacified after rotating horizontally 90 ° in air bag
On lower retaining ring in one mounting groove of support plate on the left side, trip bolt two is used in combination to fix.The same lower retaining ring of method installation
The upper support plate one by the right.
3) support plate two is erect（Totally 1）, stretched into air bag along lower retaining ring hollow groove, 90 ° rotated horizontally in air bag
It is mounted on afterwards in two mounting groove of support plate in the middle part of lower retaining ring, assembles screw mounting base, trip bolt two is used in combination to be fixed.
4) install lower cover, vulcanize one layer of rubber in lower retaining ring and lower cover contact position, with trip bolt one will under
Cover board is fixedly connected with lower retaining ring.
5) limited block assembly after upper cover plate to be installed, is fixed in trip bolt three on upper cover plate in upper retaining ring.
6) upper cover plate is installed, vulcanizes one layer of rubber in upper retaining ring and upper cover plate contact position, with trip bolt one by upper cover plate
It is fixedly connected with upper retaining ring.
The invention will be further described below.The appearance and size of pincushion low frequency air bag vibration isolator is：Length × width × height=
420mm×180 mm×215mm.Air bag utricule wall thickness 8mm, using the nylon cord fabrics of common 930dtex/2 specifications, air bag
With the above, the lower lid, the volume size that upper and lower retaining ring is formed by enclosure space is up to：4L.The above, the lower lid and upper and lower retaining ring
It is all made of steelwork, air bag vibration isolator gross weight：45kg.The pincushion low frequency air bag vibration isolator is pillow-like shape.
Through experimental test, when pincushion low frequency air bag vibration isolator inflation internal pressure is 0.3~1.0MPa, pincushion low frequency air bag every
Device bearing capacity of shaking is：10.5~35kN, service load 28kN（Working inner pressure：0.8MPa）Under, the natural frequency of vibration is：3.2Hz；It is resistance to
Pressure experiment reaches 3Mpa, and pincushion low frequency air bag vibration isolator does not occur leaking or breakoff phenomenon.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., are all included in the scope of protection of the present invention.
Claims (2)
1. a kind of installation method of pincushion low frequency air bag vibration isolator, characterized in that include the following steps：
S1：Installing retaining ring：Upper retaining ring is erect, along with plane on air bag in the oblique insertion air bag of 30 °~45° angle degree, upper button
Ring rotates horizontally 90 ° after fully entering in air bag, and rim of the mouth on air bag is assembled to upper retaining ring shoulder with wooden mallet；Lower retaining ring is erected
It is vertical, along, in the oblique insertion air bag of 30 °~45° angle degree, lower retaining ring rotates horizontally after fully entering in air bag with air bag lower plane
90 °, rim of the mouth under air bag is assembled to lower retaining ring shoulder with wooden mallet；
S2：Support plate is installed：One piece of support plate one is erect, is put into air bag along lower retaining ring hollow groove, by support plate one in gas
Intracapsular rotate horizontally is mounted on after 90 ° in one mounting groove of support plate of lower retaining ring left part, and trip bolt two is used in combination to fix；Then it adopts
The support plate one of lower retaining ring right part is installed with same method；Support plate two is erect, air bag is put into along lower retaining ring hollow groove
It is interior, support plate two is rotated horizontally in air bag and is mounted on after 90 ° in two mounting groove of support plate in the middle part of lower retaining ring, fastening is used in combination
Screw two is fixed；
S3：Lower cover is installed：By lower cover mounted on rim of the mouth under air bag in the following, being consolidated lower cover and lower retaining ring with trip bolt one
Surely it connects；
S4：Limited block is installed：Limited block is mounted in the middle part of upper retaining ring, limited block lower part is inserted into air bag；
S5：Upper cover plate is installed：Upper cover plate is mounted on air bag above rim of the mouth, is consolidated upper cover plate and upper retaining ring with trip bolt one
Surely it connects, trip bolt three is used in combination that limited block is fixedly connected on upper cover plate and upper retaining ring；
S6：It is debugged, completes the installation of pincushion low frequency air bag vibration isolator.
2. the installation method of pincushion low frequency air bag vibration isolator according to claim 1, characterized in that in upper retaining ring and upper cover plate
Contact position, lower retaining ring and lower cover contact position vulcanize one layer of rubber, by being matched with one pretightning force of trip bolt, realize pressure
Contracting sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642831.3A CN106567901B (en) | 2015-10-08 | 2015-10-08 | A kind of pincushion low frequency air bag vibration isolator and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642831.3A CN106567901B (en) | 2015-10-08 | 2015-10-08 | A kind of pincushion low frequency air bag vibration isolator and its installation method |
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| CN106567901B true CN106567901B (en) | 2018-08-28 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387633B (en) * | 2017-06-23 | 2020-02-04 | 北京无线电测量研究所 | Spacing formula low frequency damping device of airborne antenna |
| 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 |
| CN109654160B (en) * | 2019-01-16 | 2020-08-25 | 中国人民解放军海军工程大学 | Multistage elastic cabin-penetrating vibration isolation device based on pneumatic tire vibration reduction |
| 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 |
| CN110439960A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of small-sized air bag |
| CN111306232B (en) * | 2020-03-17 | 2024-01-26 | 江西理工大学 | Air spring with elastic reinforcement, processing method thereof and automobile suspension device |
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| EP1429045A2 (en) * | 2002-12-11 | 2004-06-16 | Phoenix AG | Air spring arrangement |
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| JP4660403B2 (en) * | 2006-03-17 | 2011-03-30 | 倉敷化工株式会社 | Gas spring type vibration isolator and adjustment method thereof |
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|---|---|---|---|---|
| EP1429045A2 (en) * | 2002-12-11 | 2004-06-16 | Phoenix AG | Air spring arrangement |
| CN2913729Y (en) * | 2006-04-20 | 2007-06-20 | 中国人民解放军海军工程大学 | Impact resistant ballonet vibration isolator with large load-bearing capacity and high reliability |
| CN201434038Y (en) * | 2009-06-10 | 2010-03-31 | 无锡锡南铸造机械有限公司 | Air spring device |
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