CN102478096B - Vibration isolation device for floating plate - Google Patents
Vibration isolation device for floating plate Download PDFInfo
- Publication number
- CN102478096B CN102478096B CN 201010561142 CN201010561142A CN102478096B CN 102478096 B CN102478096 B CN 102478096B CN 201010561142 CN201010561142 CN 201010561142 CN 201010561142 A CN201010561142 A CN 201010561142A CN 102478096 B CN102478096 B CN 102478096B
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- Prior art keywords
- plate
- backing plate
- vibration isolation
- isolation device
- upper bearing
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- 238000007667 floating Methods 0.000 title claims abstract description 24
- 238000002955 isolation Methods 0.000 title claims abstract description 22
- 210000004907 gland Anatomy 0.000 claims abstract description 9
- 229920001967 Metal rubber Polymers 0.000 claims description 19
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 210000003850 cellular structure Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 229920001971 elastomer Polymers 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 13
- 239000002184 metal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration isolation device for a floating plate. The vibration isolation device comprises a sleeve (6), a locking backing plate (5), an upper bearing plate (3) and a base (15), wherein the inner wall of the sleeve (6) is provided with a spacing block shoulder (10); the locking backing plate (5) is fixed on the spacing block shoulder (10) through a connecting plate (5a); the locking backing plate (5) is matched with the lower surface of the spacing block shoulder (10); an adjustment backing plate (4) is arranged between the locking backing plate (5) and the upper bearing plate (3); the upper bearing plate (3) is connected with the base (15) through a gland cover (2); and an elastic element (14) is arranged in the gland cover (2). The vibration isolation device disclosed by the invention is concise in structure and convenient in installation, maintenance and disassembly, can be used for solving the problem that the rubber floating plate vibration isolator in the prior art is easy to age and has short service life. In addition, the vibration isolation device disclosed by the invention has good vibration isolation effect.
Description
Technical field
The invention belongs to the urban rail transit technology field, relate to concretely a kind of vibration isolation device of floating slab.
Background technique
Track traffic has also brought the environmental issues such as vibration and noise bringing people simultaneously easily; Conventional rails structure its effect aspect vibration and noise reducing is limited; Vibration pollution and domestic and international sqouynd absorption lowering noise development situation for subway brings mainly concentrate on the ballastless tracks such as slab track, elastic supporting block, spring secures rail to sleeper, floating plate to the research of damping noise reduction track structure both at home and abroad.Floating plate track is the best a kind of ballast bed structure of effectiveness in vibration suppression up to now.
Floating plate rail structure be in orbit section building with and the basis between eigentone of insertion far below the linear resonator of excited frequency, be about to have the concrete road bed floating plate of certain mass and rigidity on Elastic Isolator, make it be in state of suspension, set up the single degree of freedom system of quality-spring, the dynamic load that utilizes the floating plate mass inertia to come the balance train operation to cause, only there are balanced dynamic load and dead load just to pass on roadbed or tunnel structure by elastic element, to reach the purpose of vibration damping; At present the elastic element that adopts of vibration isolator mainly contains two kinds of rubber spring and helical steel springs.The elasticity of rubber material, damping characteristic are subject to the impact of ambient temperature, coefficient of heat transfer is little, easily heating produces thermal stress fatigue, deterioration phenomenon under the alternate load effect, cause the degeneration of elastic damping characteristic, and antipollution, acid etching ability, the frequency of utilization narrow range therefore must periodic replacement.
Summary of the invention
The object of the present invention is to provide a kind of compact structure, good damping result, easy disassembly, can effectively guarantee the vibration isolation device of floating slab in elastic element damping life-span.
Technological scheme of the present invention is as follows:
a kind of vibration isolation device of floating slab, this isolation mounting comprises sleeve, the locking backing plate, upper bearing plate and base, described sleeve lining has spacing shoulder block, described locking backing plate is fixed on described spacing shoulder block by connecting plate, wherein said locking backing plate matches with described spacing shoulder block lower surface, be provided with the adjusting backing plate between described locking backing plate and upper bearing plate, be connected by stuffing box gland between described upper bearing plate and base, be provided with elastic element in the sealing cover, match with the lower surface of described upper bearing plate and the upper surface of base respectively in this elastic element two ends.
Adopt the said structure sleeve to be embedded in floating plate, base is placed on the railway roadbed basis by antislip plate, can form air cushion by the isolation mounting by this scheme between railway roadbed and basis like this, track structure top-out and base isolation, realize that railway roadbed floats, this programme vehicle by the time whole railway roadbed carry out the vibration that inertia motion is isolated and the train operation that decays produces on elastic element, and consume vibrational energy by the distortion of elastic element, to realize subtracting vibration isolating effect; Simultaneously regulate the number of backing plate or the requirement that thickness satisfies actual floating plate hoverheight according to actual conditions by adjustment, this programme is simple in structure, easy accessibility, to subtract vibration isolating effect good.
Fix by lock bolt between described locking backing plate, upper bearing plate and adjusting backing plate.
Described elastic element is comprised of metal-rubber piece and polyurethane layer, and described polyurethane layer is wrapped in described metal-rubber piece outer surface.
Described connecting plate is fixedly connected with described spacing shoulder block by bolt.
The cellular structure that described metal-rubber piece is made by wire.
The reticular structure that interweaves that described metal-rubber piece is made by wire.
1, adopt the metal-rubber elastic element, between its wire, the phase mutual friction has the dry-friction damping effect, vibrational energy is converted to heat energy and spreads out rapidly, its vibration isolating effect is obvious, more than can reaching 25dB, can effectively reduce Subway Vibration to the impact of surrounding environment, be applicable to the damping type ballast bed structure in high and special location.
2, when the dynamic excitation change of frequency, the damping characteristic of vibration isolator changes thereupon, and during system resonance, the metal-rubber distortion strengthens, the dry friction aggravation between wire, and damping just enlarges markedly, and can effectively suppress resonance peak; After crossing resonance peak, the metal-rubber distortion reduces, and damping ratio descends thereupon, has the change damping characteristic.
3, the metal-rubber piece is not subjected to high low temperature effect by wire, is difficult for agingly, can satisfy under track sound environment long-term usage requirement, has extended the replacement cycle of floating plate vibration isolator.
Described sleeve is provided with top cover, is provided with hanger on this top cover.
Described stuffing box gland two ends are connected with base with described upper bearing plate respectively by clip.
Beneficial effect: structure of the present invention letter joint, installation, maintenance, convenient disassembly have solved in technology rubber floating plate vibration isolator easily aging, the problem that the life-span is short, vibration isolating effect is good.
Description of drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is structural representation of the present invention;
Fig. 2 is scheme of installation of the present invention;
Fig. 3 is honeycomb metal block rubber structural representation;
Fig. 4 is that the wire cross section that forms that interweaves is net metal block rubber structural representation.
Embodiment
Embodiment: as shown in Fig. 1,3,4:
this isolation mounting comprises sleeve 6, locking backing plate 5, upper bearing plate 3 and base 15, described sleeve 6 inwalls have spacing shoulder block 10, described locking backing plate 5 is fixed on described spacing shoulder block 10 by connecting plate 5a, wherein said locking backing plate 5 matches with described spacing shoulder block 10 lower surfaces, be provided with between described locking backing plate 5 and upper bearing plate 3 and regulate backing plate 4, be connected by stuffing box gland 2 between described upper bearing plate 3 and base 15, be provided with elastic element 14 in sealing cover 2, match with the lower surface of described upper bearing plate 3 and the upper surface of base 15 respectively in this elastic element 14 two ends.
Fixing by lock bolt 12 between described locking backing plate 5, upper bearing plate 3 and adjusting backing plate 4.
Described elastic element 14 is comprised of metal-rubber piece 14a and polyurethane layer 14b, and described polyurethane layer 14b is wrapped in described metal-rubber piece 14a outer surface.
Described connecting plate 5a is fixedly connected with described spacing shoulder block 10 by bolt 11.
The cellular structure that described metal-rubber piece 14a is made by wire.
The reticular structure that interweaves that described metal-rubber piece 14a is made by wire.
Described stuffing box gland 2 two ends are connected with base 15 with described upper bearing plate 3 respectively by clip 1.
Proof resilience element of the present invention is the polyurethane layer of metal-rubber piece and the surperficial parcel of metal-rubber; Elastic element is placed between the base 15 and upper bearing plate 3 of phase configuration with it, and base end face is circular, and upper bearing plate and base outer surface are offered draw-in groove, and card sieve 1 is fixed stuffing box gland 2 and base, upper bearing plate, and whole elastic element is in sealing state; Regulate backing plate 4 and locking backing plate 5 and offer the through hole of formed objects, and it is basic identical to regulate backing plate, locking backing plate and upper bearing plate profile, by lock bolt 12, height-regulating device is locked after vibration isolator is heightened, simultaneously, bolt 11 links spacing shoulder block 10 and connecting plate 5a; Top cover 7 is bolted with sleeve 6, and top cover is provided with hanger 8, so that transportation, installation and maintenance.
In shock absorber of the present invention, the metal-rubber piece is Stainless Steel Wire through coiling helical coil and stretching, impact briquetting, both keeps the excellent specific property of metal, the elasticity and the damping capacity that have again the rubber like material, inner wire is through certain design, mutually link staggered, form the space reticular structure, be similar to the rubber macromolecular structure, be referred to as the metal-rubber piece.
Sleeve is embedded in floating plate 20 as shown in Figure 2, base 15 is by basic 21 butts of antislip plate 23 and railway roadbed, isolation mounting realization by this scheme subtracts vibration isolating effect between floating plate that be used for to lay track 22 and railway roadbed basis like this, this programme vehicle by the time distortion by elastic element consume vibrational energy, simultaneously regulate the number of backing plate or the requirement that thickness satisfies actual height according to actual conditions by adjustment, this programme is simple in structure, easy accessibility, to subtract vibration isolating effect good.
Claims (6)
1. vibration isolation device of floating slab, it is characterized in that: this isolation mounting comprises sleeve (6), locking backing plate (5), upper bearing plate (3) and base (15), described sleeve (6) inwall has spacing shoulder block (10), described locking backing plate (5) is fixed on described spacing shoulder block (10) by connecting plate (5a), wherein said locking backing plate (5) matches with described spacing shoulder block (10) lower surface, be provided with between described locking backing plate (5) and upper bearing plate (3) and regulate backing plate (4), be connected by stuffing box gland (2) between described upper bearing plate (3) and base (15), be provided with elastic element (14) in sealing cover (2), match with the lower surface of described upper bearing plate (3) and the upper surface of base (15) respectively in this elastic element (14) two ends.
2. a kind of vibration isolation device of floating slab according to claim 1, is characterized in that: fixing by lock bolt (12) between described locking backing plate (5), upper bearing plate (3) and adjusting backing plate (4).
3. a kind of vibration isolation device of floating slab according to claim 1 and 2, it is characterized in that: described elastic element (14) is comprised of metal-rubber piece (14a) and polyurethane layer (14b), described polyurethane layer (14b) is wrapped in described metal-rubber piece (14a) outer surface, cellular structure or the reticular structure that interweaves that described metal-rubber piece (14a) is made by wire.
4. a kind of vibration isolation device of floating slab according to claim 3, it is characterized in that: described connecting plate (5a) is fixedly connected with described spacing shoulder block (10) by bolt (11).
5. a kind of vibration isolation device of floating slab according to claim 1 and 2 is characterized in that: described stuffing box gland (2) two ends are connected with base (15) with described upper bearing plate (3) respectively by clip (1).
6. a kind of vibration isolation device of floating slab according to claim 1 and 2, it is characterized in that: described sleeve (6) is provided with top cover (7), is provided with hanger (8) on this top cover (7).
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561142 CN102478096B (en) | 2010-11-26 | 2010-11-26 | Vibration isolation device for floating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561142 CN102478096B (en) | 2010-11-26 | 2010-11-26 | Vibration isolation device for floating plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478096A CN102478096A (en) | 2012-05-30 |
| CN102478096B true CN102478096B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010561142 Active CN102478096B (en) | 2010-11-26 | 2010-11-26 | Vibration isolation device for floating plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478096B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805740A (en) * | 2015-03-03 | 2015-07-29 | 中国船舶重工集团公司第七一一研究所 | Rubber vibration isolator for rail transit floating slab track bed vibration isolation system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115102B (en) * | 2013-01-31 | 2015-01-07 | 中国石油大学(华东) | Vibration isolation device of fracturing truck heavy duty truck platform device |
| CN116497646A (en) * | 2022-07-23 | 2023-07-28 | 浙江天铁实业股份有限公司 | Superimposed vibration isolator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198550Y (en) * | 2008-05-16 | 2009-02-25 | 上海大裕橡胶制品有限公司 | Elastic bearing for float placing plate rail system |
| CN201428096Y (en) * | 2009-02-19 | 2010-03-24 | 江苏铁科环控工程有限公司 | Supporting shell body of steel spring and rubber compound vibration isolator |
| CN201865008U (en) * | 2010-11-26 | 2011-06-15 | 成都市新筑路桥机械股份有限公司 | Vibration isolation device of floating slab |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3112878B2 (en) * | 1997-12-02 | 2000-11-27 | 帝都高速度交通営団 | Box bearing elastic track device |
| JPH11293603A (en) * | 1998-04-15 | 1999-10-26 | Tokyo Fabric Kogyo Kk | Fastening device for reaction plate of linear motor driven subway |
-
2010
- 2010-11-26 CN CN 201010561142 patent/CN102478096B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198550Y (en) * | 2008-05-16 | 2009-02-25 | 上海大裕橡胶制品有限公司 | Elastic bearing for float placing plate rail system |
| CN201428096Y (en) * | 2009-02-19 | 2010-03-24 | 江苏铁科环控工程有限公司 | Supporting shell body of steel spring and rubber compound vibration isolator |
| CN201865008U (en) * | 2010-11-26 | 2011-06-15 | 成都市新筑路桥机械股份有限公司 | Vibration isolation device of floating slab |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805740A (en) * | 2015-03-03 | 2015-07-29 | 中国船舶重工集团公司第七一一研究所 | Rubber vibration isolator for rail transit floating slab track bed vibration isolation system |
| CN104805740B (en) * | 2015-03-03 | 2016-12-07 | 中国船舶重工集团公司第七一一研究所 | Rubber shock absorber for orbit traffic floating board railway roadbed vibrating isolation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102478096A (en) | 2012-05-30 |
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Effective date of registration: 20240109 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Patentee after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Sichuan, Chengdu Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |