CN201746747U - Lower base plate of thermoplastic polyester high-elastic rail - Google Patents
Lower base plate of thermoplastic polyester high-elastic rail Download PDFInfo
- Publication number
- CN201746747U CN201746747U CN2010202656807U CN201020265680U CN201746747U CN 201746747 U CN201746747 U CN 201746747U CN 2010202656807 U CN2010202656807 U CN 2010202656807U CN 201020265680 U CN201020265680 U CN 201020265680U CN 201746747 U CN201746747 U CN 201746747U
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- China
- Prior art keywords
- base plate
- lower base
- rail
- thermoplastic polyester
- railway rail
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Abstract
The utility model relates to a lower base plate of a thermoplastic polyester high-elastic rail which is used for reducing the vibration and noise of the rail. The lower base plate of the thermoplastic polyester high-elastic rail includes the lower base plate body (1) of the rail; a plurality of grooves (2) are transversely arranged on the back surface of the lower base plate body (1) of the rail in parallel; bumping shoulders (3) are longitudinally arranged on the two sides of the back surface of the lower base plate body (1) of the rail in an extruding way; a plurality of rows of convex columns (4) are transversely arranged on the front surface of the lower base plate body (1) of the rail in parallel; the convex columns (4) are of a bulb shape or cylinder shape; two neighboring rows of convex columns (4) on the front surface of the lower base plate body (1) of the rail are mutually staggered. As the convex columns on the front surface of the lower base plate body (1) of the rail are mutually staggered, the carrying capability of a bearing surface is relatively balanced; moreover, the lower base plate of the thermoplastic polyester high-elastic rail has good elasticity, small ratio of dynamic and static rigidity, and quicker rebounding speed, improves the carrying capability and fatigue resistance capability of the base plate and greatly improves the service life of the lower base plate of the rail.
Description
(1) technical field
The utility model relates to the backing plate in a kind of track traffic middle orbit fastener system, relates in particular to a kind of thermoplastic polyester elastomer railway rail pad, is used to reduce the vibration and the noise of track.Belong to track traffic fastener antivibration area.
(2) background technology
In recent years, the construction of track traffic (subway, state's iron, high ferro) is in the ascendant, and at present circuit is substantially for ballastless track designs, so how to reduce track vibration and noise becomes the problem that people receive much concern always.Temperature difference urban rail transit construction big, the area that makes a clear distinction between the four seasons objectively requires the fastener backing plate to have universality, backing plate can adapt under the bigger situation of the temperature difference and still has constant substantially elastic performance, and length fatigue life of backing plate also is the eternal pursuit of user certainly.
Present railway rail pad mainly adopts elastomeric material.This is that the elastomeric state performance that makes full use of rubber provides deformation, still extensively adopts in countries in the world.But the recurring structure deformation simultaneously in actual use of rubber-like railway rail pad and elastic deformation, deformation recover slowly, moving/quiet ratio of rigidity is big, fatigue performance is bad; And load often exceeds the elastic deformation scope of elastomeric material, and the rigidity of the rail support point that at this time can increase sharply has on the one hand promptly reduced damping property, shortens the application life of backing plate on the other hand greatly.
And some low rigidity railway rail pads that utilize thermoplastic polyester elastomer to make utilize unidirectional upper and lower surface dislocation groove structure, utilize deflection deformation, though it is very fast that deformation recovers, but there is stronger anisotropy in stressed back, promptly under the effect of vertical force, along rail direction and unbalanced perpendicular to the transverse deformation amount of rail direction, this can influence the comprehensive result of use of fastener system to a certain extent.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and still keep elasticity and the non-sclerous or softening high-elastic railway rail pad of thermoplastic polyester under the bigger situation of the high and low temperature difference.
The purpose of this utility model is achieved in that a kind of thermoplastic polyester elastomer railway rail pad, comprises the railway rail pad body, the railway rail pad body back side many grooves that laterally have been arranged in parallel, the vertically outstanding shoulder block that is provided with in both sides, the railway rail pad body back side; Railway rail pad body front laterally has been arranged in parallel arranges projections more, and the positive adjacent two row's projections of described railway rail pad body are mutual dislocation and arrange.
The utility model mainly provides higher screen resilience by flexural deformations, and compressive strain provides assistant spring, lay down vertical load after, deformation can recover rapidly.
The beneficial effects of the utility model are:
1, the utility model adopts boss post and channel form composite design, the groove at the railway rail pad back side mainly deflection deformation of the thermoplastic polyester elastomer by higher bending modulus provides screen resilience, this composite design can be given full play to the counter-bending flexural property and the compressive strain of its excellence, and good springiness, moving/quiet ratio of rigidity is little, rebound velocity is fast.
2, arrange that the stressed relative equilibrium of bearing surface has good springiness because the projection in the utility model railway rail pad front is mutual dislocation, the sound ratio of rigidity is little, and rebound velocity is very fast; Improve the supporting capacity and the fatigue performance of backing plate, increased substantially the application life of railway rail pad.
3, the size and the quantity of hardness, projection and the groove that the rigidity of product can be by material are adjusted.
(4) description of drawings
Fig. 1 is the Facad structure schematic diagram of the utility model thermoplastic polyester elastomer railway rail pad.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is the B-B cut-away view of Fig. 1.
Reference numeral among the figure:
Railway rail pad body 1, groove 2, shoulder block 3, projection 4.
(5) specific embodiment
Referring to Fig. 1～3, Fig. 1 is the Facad structure schematic diagram of the utility model thermoplastic polyester elastomer railway rail pad.Fig. 2 is the A-A cut-away view of Fig. 1.Fig. 3 is the B-B cut-away view of Fig. 1.By Fig. 1, Fig. 2 and Fig. 3 as can be seen, the utility model thermoplastic polyester elastomer railway rail pad, comprise railway rail pad body 1, railway rail pad body 1 back side many grooves 2 that laterally have been arranged in parallel, the vertically outstanding shoulder block 3 that is provided with in both sides, railway rail pad body 1 back side; Railway rail pad body 1 front laterally has been arranged in parallel arranges projections 4 more, and projection 4 is bulb shape or cylindric, and described railway rail pad body 1 positive adjacent two row's projections 4 are mutual dislocation and arrange.
Quiet rigidity of the present utility model and dynamic stiffness can be by changing groove the size of width, the degree of depth and separation and the modulus of material therefor change, can produce the low high-elastic railway rail pad of rigidity with macromolecular material with the bent modulus of higher change, improved the supporting capacity and the fatigue performance of railway rail pad, made it to have good comprehensive functional performance.
Claims (2)
1. a thermoplastic polyester elastomer railway rail pad comprises railway rail pad body (1), railway rail pad body (1) back side many grooves (2) that laterally have been arranged in parallel, the vertically outstanding shoulder block (3) that is provided with in railway rail pad body (1) both sides, the back side; Railway rail pad body (1) front laterally has been arranged in parallel arranges projections (4) more, it is characterized in that: the positive adjacent two row's projections (4) of described railway rail pad body (1) are mutual dislocation and arrange.
2. a kind of thermoplastic polyester elastomer railway rail pad according to claim 1 is characterized in that: described projection (4) is bulb shape or cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202656807U CN201746747U (en) | 2010-07-20 | 2010-07-20 | Lower base plate of thermoplastic polyester high-elastic rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202656807U CN201746747U (en) | 2010-07-20 | 2010-07-20 | Lower base plate of thermoplastic polyester high-elastic rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201746747U true CN201746747U (en) | 2011-02-16 |
Family
ID=43581427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202656807U Expired - Fee Related CN201746747U (en) | 2010-07-20 | 2010-07-20 | Lower base plate of thermoplastic polyester high-elastic rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201746747U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146644A (en) * | 2011-04-22 | 2011-08-10 | 江阴海达橡塑股份有限公司 | Polyester elastic vibration damping liner plate |
| CN102433806A (en) * | 2011-09-30 | 2012-05-02 | 周子雄 | Heavy-load base plate for rail |
| CN104947552A (en) * | 2015-06-11 | 2015-09-30 | 株洲时代新材料科技股份有限公司 | Composite structure heavy lead resilient sleeper bearing and design method thereof |
| CN105113344A (en) * | 2015-08-17 | 2015-12-02 | 王安斌 | High-attenuation multiple non-linear stiffness vibration and noise reduction elastic base plate |
-
2010
- 2010-07-20 CN CN2010202656807U patent/CN201746747U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146644A (en) * | 2011-04-22 | 2011-08-10 | 江阴海达橡塑股份有限公司 | Polyester elastic vibration damping liner plate |
| CN102433806A (en) * | 2011-09-30 | 2012-05-02 | 周子雄 | Heavy-load base plate for rail |
| CN104947552A (en) * | 2015-06-11 | 2015-09-30 | 株洲时代新材料科技股份有限公司 | Composite structure heavy lead resilient sleeper bearing and design method thereof |
| CN104947552B (en) * | 2015-06-11 | 2016-10-26 | 株洲时代新材料科技股份有限公司 | Composite construction heavy duty resilient sleeper-bearing and method for designing thereof |
| CN105113344A (en) * | 2015-08-17 | 2015-12-02 | 王安斌 | High-attenuation multiple non-linear stiffness vibration and noise reduction elastic base plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20160720 |