CN110424195A - A kind of nonlinear isolation device for floating slab track of track traffic system - Google Patents
A kind of nonlinear isolation device for floating slab track of track traffic system Download PDFInfo
- Publication number
- CN110424195A CN110424195A CN201910287768.4A CN201910287768A CN110424195A CN 110424195 A CN110424195 A CN 110424195A CN 201910287768 A CN201910287768 A CN 201910287768A CN 110424195 A CN110424195 A CN 110424195A
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- Prior art keywords
- vibration isolator
- cellular
- track
- convex block
- traffic system
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Links
- 238000007667 floating Methods 0.000 title claims abstract description 24
- 238000002955 isolation Methods 0.000 title claims abstract description 15
- 230000001413 cellular effect Effects 0.000 claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims abstract description 26
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000004132 cross linking Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
The invention discloses a kind of nonlinear isolation devices for floating slab track of track traffic system, including vibration isolator cellular, cone rubber, rigidity spring, metallic inner, convex block and groove, the positioned inside of vibration isolator cellular has cone rubber, wherein, the cone rubber is internally provided with rigidity spring, metallic inner is fixed at the top of the vibration isolator cellular of the upper end of the rigidity spring, the two sides upper surface of vibration isolator cellular is arranged in the convex block, and the position of the lower surface of the corresponding vibration isolator cellular of convex block is arranged in the groove.This is superimposed three layers of formation vibration isolator for vibration isolator cellular vertical direction in the nonlinear isolation device of floating slab track of track traffic system, and rigidity spring is in parallel in vibration isolator, such setting can make vibration isolator have the characteristics that large carrying capacity, deformation space be small, intrinsic frequency can be arbitrarily low.
Description
Technical field
It is specially a kind of for the non-of floating slab track of track traffic system the present invention relates to track vibration-reducing technical field
Linear vibration isolator.
Background technique
Existing vibration isolator either steel spring or rubber spring, under floating plate self weight state, vibration isolator is intended to
Partial elastic is lost, and has vibration amplification trend to low-frequency range within 20Hz, steel spring vibration isolator stiffness curve linearly becomes
To change, sound stiffness is relatively low, and dynamic vertical deviation is larger, and it easily causes track plates acoustically radiating amount to increase, internal car noise is caused to increase,
Comfort level is influenced, though rubber spring vibration isolator stiffness curve is in that nonlinear change can approximatively be regarded as when deforming smaller
For linear elastomer, and its sound stiffness, than relatively large, the decaying of vibration isolator stiffness is very fast, influences effectiveness in vibration suppression therefore market
On there is an urgent need to which the technology of vibration isolator structure can be improved, to improve this equipment.
Summary of the invention
The purpose of the present invention is to provide a kind of nonlinear isolation device for floating slab track of track traffic system, with
Solve the problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: a kind of be used for floating slab track of track traffic system
Nonlinear isolation device, including vibration isolator cellular, cone rubber, rigidity spring, metallic inner, convex block and groove, vibration isolator member
The positioned inside of born of the same parents has cone rubber, wherein
The cone rubber is internally provided with rigidity spring, the vibration isolator cellular top of the upper end of the rigidity spring
It is fixed with metallic inner, the two sides upper surface of vibration isolator cellular is arranged in the convex block, and the groove setting is corresponding in convex block
The position of the lower surface of vibration isolator cellular.
Further, the vibration isolator cellular vertical direction is superimposed three layers of formation vibration isolator, and rigidity spring in vibration isolator
It is in parallel.
Further, the cone rubber passes through crosslinking Treatment.
Further, there are gaps between the rigidity spring and metallic inner.
Further, to be connected together between the convex block and groove, and the inside ruler of the external dimensions of convex block and groove
It is very little to match.
Compared with prior art, the beneficial effects of the present invention are: this is used for the non-thread of floating slab track of track traffic system
Property vibration isolator mainly use vibration damping and design: vibration isolator cellular vertical direction is superimposed three layers of formation vibration isolator, and in vibration isolator
Rigidity spring is in parallel, such setting can make vibration isolator have large carrying capacity, deformation space be small, intrinsic frequency can be any
Low feature, at the same vibration isolator overall steel write music line be it is nonlinear, by cone rubber itself stiffness curve and built-in steel spring
Compensation stiffness collectively constitutes, such stiffness Curve Design, so that there are two kinds of working conditions for vibration isolator, in floating plate precompressed
When, completely by cone rubber support floating plate self weight, lower stiffness is maintained in equilbrium position, when train passes through, by steel
Spring and the self weight of cone rubber shared train load and floating plate guarantee that the whole displacement of floating plate track will not be sent out
Raw excessive variation obtains high in addition, vibration isolator uses the positive and negative stiffness element in parallel of Combination Design using positive and negative stiffness
Quiet stiffness and low dynamic stiffness, high quiet stiffness make the quiet deflection very little of system；Low dynamic stiffness can reduce the intrinsic of system
Frequency, so as to expand vibration isolation section；Ensuring that vibration isolator so not only has the advantages that the vibration isolation of slinky spring, but have compared with
Small intrinsic frequency has weighed the contradiction between Static Correction and vibration isolating effect, and vibration isolator entirety stiffness is by cone rubber itself steel
Write music line and built-in steel spring compensation stiffness collectively constitute, be in significant nonlinear change, can preferably reduce track in this way
On vibration, while excessive variation will not occur for the whole displacement for also avoiding track.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is vibration isolator structure cell schematic diagram of the present invention；
Fig. 3 is convex block of the present invention and concave groove coupling structure schematic diagram.
In figure: 1, vibration isolator cellular, 2, cone rubber, 3, rigidity spring, 4, metallic inner, 5, convex block, 6, groove.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of for floating slab track of track traffic system
Nonlinear isolation device, including vibration isolator cellular 1, cone rubber 2, rigidity spring 3, metallic inner 4, convex block 5 and groove 6, vibration isolation
The positioned inside of device cellular 1 has cone rubber 2, wherein
The cone rubber 2 is internally provided with rigidity spring 3, the vibration isolator cellular 1 of the upper end of the rigidity spring 3
Top is fixed with metallic inner 4, and the two sides upper surface of vibration isolator cellular 1 is arranged in the convex block 5, and the groove 6 is arranged convex
The position of the lower surface of the corresponding vibration isolator cellular 1 of block 5.
Preferably, 1 vertical direction of vibration isolator cellular is superimposed three layers of formation vibration isolator, and rigidity spring 3 in vibration isolator
It is in parallel.
Preferably, the cone rubber 2 is more capable of providing appropriate damping, makes vibration isolator itself by crosslinking Treatment, coverage
With appropriate damping, it is not required to composed of external damping.
Preferably, there are gap between the rigidity spring 3 and metallic inner 4, global displacement makes more than after certain value
Rigidity spring 3 plays the role of stiffness compensation, while vibration isolator tends in the composite rigidity of floating plate precompressed equilibrium position
Zero, and the Static stiffness of vibration isolator does not reduce, so under low amplitude vibrations, vibration isolator has high Static stiffness and low dynamic rigid simultaneously
The characteristic of degree.
Preferably, to be connected together between the convex block 5 and groove 6, and the inside of the external dimensions of convex block 5 and groove 6
Size matches, and can preferably say that multiple vibration isolator cellulars 1 link together in this way.
Wherein, vibration isolator overall steel write music line be it is nonlinear, by cone rubber 2 itself stiffness curve and built-in rigidity
Spring 3 compensates stiffness and collectively constitutes, such stiffness Curve Design, so that there are two kinds of working conditions for vibration isolator, in floating plate
When precompressed, floating plate self weight is supported by cone rubber 2 completely, maintains lower stiffness in equilbrium position, when train passes through,
It is self-possessed by rigidity spring 3 and 2 shared train load of cone rubber and floating plate, guarantees the whole position of floating plate track
Excessive variation will not occur for shifting.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of nonlinear isolation device for floating slab track of track traffic system, including vibration isolator cellular (1), cone rubber
(2), rigidity spring (3), metallic inner (4), convex block (5) and groove (6), it is characterised in that: pacify the inside of vibration isolator cellular (1)
It is equipped with cone rubber (2), wherein
The cone rubber (2) is internally provided with rigidity spring (3), the vibration isolator cellular of the upper end of the rigidity spring (3)
(1) top is fixed with metallic inner (4), and the convex block (5) is arranged in the two sides upper surface of vibration isolator cellular (1), the groove
(6) it is arranged in the position of the lower surface of the corresponding vibration isolator cellular (1) of convex block (5).
2. a kind of nonlinear isolation device for floating slab track of track traffic system according to claim 1, feature
Be: vibration isolator cellular (1) vertical direction is superimposed three layers of formation vibration isolator, and rigidity spring (3) is in parallel in vibration isolator.
3. a kind of nonlinear isolation device for floating slab track of track traffic system according to claim 1, feature
Be: the cone rubber (2) passes through crosslinking Treatment.
4. a kind of nonlinear isolation device for floating slab track of track traffic system according to claim 1, feature
Be: there are gaps between the rigidity spring (3) and metallic inner (4).
5. a kind of nonlinear isolation device for floating slab track of track traffic system according to claim 1, feature
It is: to be connected together between the convex block (5) and groove (6), and the inside ruler of the external dimensions of convex block (5) and groove (6)
It is very little to match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287768.4A CN110424195B (en) | 2019-04-11 | 2019-04-11 | Nonlinear vibration isolator for track traffic floating slab track system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287768.4A CN110424195B (en) | 2019-04-11 | 2019-04-11 | Nonlinear vibration isolator for track traffic floating slab track system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110424195A true CN110424195A (en) | 2019-11-08 |
| CN110424195B CN110424195B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910287768.4A Active CN110424195B (en) | 2019-04-11 | 2019-04-11 | Nonlinear vibration isolator for track traffic floating slab track system |
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| Country | Link |
|---|---|
| CN (1) | CN110424195B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240894A (en) * | 1968-09-16 | 1971-07-28 | Norman Dennis Allen Hall | Isolators for vibration, noise and shock control |
| CN201330819Y (en) * | 2008-12-30 | 2009-10-21 | 中国船舶重工集团公司第七一一研究所 | Rubber anti-impact device |
| 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 |
| CN108486967A (en) * | 2018-01-25 | 2018-09-04 | 四川大学 | A kind of compound floating plate track vibration isolator |
| CN218059731U (en) * | 2022-06-30 | 2022-12-16 | 上海同研城铁减振技术有限公司 | Rubber shearing vibration isolator for vibration reduction of floating plate |
-
2019
- 2019-04-11 CN CN201910287768.4A patent/CN110424195B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240894A (en) * | 1968-09-16 | 1971-07-28 | Norman Dennis Allen Hall | Isolators for vibration, noise and shock control |
| CN201330819Y (en) * | 2008-12-30 | 2009-10-21 | 中国船舶重工集团公司第七一一研究所 | Rubber anti-impact device |
| 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 |
| CN108486967A (en) * | 2018-01-25 | 2018-09-04 | 四川大学 | A kind of compound floating plate track vibration isolator |
| CN218059731U (en) * | 2022-06-30 | 2022-12-16 | 上海同研城铁减振技术有限公司 | Rubber shearing vibration isolator for vibration reduction of floating plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110424195B (en) | 2024-03-15 |
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Effective date of registration: 20240207 Address after: 412000 rooms 102, 202, 302, building a11, high tech xinmajingu, Majiahe street, Tianyuan District, Zhuzhou City, Hunan Province Applicant after: Hunan jiuyu Tongchuang polymer new material Co.,Ltd. Country or region after: China Address before: 721000 No. 26, Jufu East Road, Weibin District, Baoji City, Shaanxi Province Applicant before: Shaanxi Jiuyu Tongchuang Track System Technology Co.,Ltd. Country or region before: China |
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