CN204238073U - Track heavy load base plate - Google Patents
Track heavy load base plate Download PDFInfo
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- CN204238073U CN204238073U CN201420706929.1U CN201420706929U CN204238073U CN 204238073 U CN204238073 U CN 204238073U CN 201420706929 U CN201420706929 U CN 201420706929U CN 204238073 U CN204238073 U CN 204238073U
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- nexine
- clad
- pit
- base plate
- heavy load
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Abstract
Track heavy load base plate, comprises nexine and clad, and described clad is wrapped in the external surface of nexine, and described nexine is made up of thermoplastic elastomer (TPE), and described clad is made up of rubber, and the hardness of described nexine is greater than the hardness of clad.When heavy-duty cushion plate of the present utility model bears heavily loaded fatigue load frequently, existing stronger supporting capacity can keep again the stability of the node Static stiffness of fastener.
Description
Technical field
The utility model relates to a kind of backing plate, particularly a kind of track heavy load base plate.
Background technology
Heavy haul train weight up to 5000 tons, axle heavy up to 30 tons, rate of traffic flow and freight volume be large, the impact between wheel track is abnormal serious, so particularly the supporting capacity of resilient sleeper-bearing and fatigue performance require abnormal strict to heavily loaded fastener.The heavy-duty cushion plate of current use forms primarily of rubber or thermoplastic polyester elastomer (TPEE) manufacture, and the too soft supporting capacity of rubber is inadequate, is easy to by conquassation, causes fastener to lose efficacy for heavy haul railway.TPEE backing plate supporting capacity is strong, but its compression set is large, and after the effect of chronic fatigue load, fastener node Static stiffness off-design value is too large, causes whole fastener to lose efficacy.When bearing heavily loaded fatigue load frequently, existing stronger supporting capacity can keep again the stability of the node Static stiffness of fastener to be the direction of heavy-duty cushion plate design.
Utility model content
The utility model for the deficiencies in the prior art, provide a kind of when bearing heavily loaded fatigue load frequently existing stronger supporting capacity can keep again the track heavy load base plate of the stability of the node Static stiffness of fastener.
For achieving the above object, the technical solution adopted in the utility model is: track heavy load base plate, it is characterized in that comprising nexine and clad, described clad is wrapped in the external surface of nexine, described nexine is made up of thermoplastic elastomer (TPE), described clad is made up of rubber, and the hardness of described nexine is greater than the hardness of clad.
Preferably, the upper surface of described nexine and soffit are symmetrically distributed with pit one.
Preferably, be distributed with the projection corresponding with described pit one at described clad with on the surface that described nexine contacts, described pit one fills up by described projection.
Preferably, the upper surface of described clad and soffit are distributed with pit two, the center line of pit two overlap with the center line of described projection.
Preferably, described pit one and pit two are truncated cone-shaped pit, and described projection is truncated cone-shaped projection.
Preferably, between the pit one of described nexine upper surface and the pit one being symmetrically distributed in described nexine soffit, there is through hole.
The hardness of its nexine made with pad thermoplastic elastic of heavy-duty cushion plate of the present utility model is greater than the hardness of the clad made with rubber, under heavily loaded fatigue load, the deformation displacement amount of heavy-duty cushion plate is mainly at clad, nexine deformation displacement amount is little can not there is too large deformation, and nexine pad thermoplastic elastic makes the load that its supporting capacity bears by force the overwhelming majority.Its compression set of clad that rubber is made is little, under long-term fatigue load, performance is still kept preferably, the node Static stiffness of the little fastener after fatigue load effect of damage of the soft contacting piece of the low material of hardness of clad changes little, even if after bearing long-term heavily loaded fatigue load, the node Static stiffness of fastener still can be kept sharply to increase, the stability of the node Static stiffness of fastener can be kept.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of the track heavy load base plate in embodiment.
Fig. 2 is the nexine cross sectional representation in embodiment
Fig. 3 is the clad cross sectional representation in embodiment
The perspective view of the track heavy load base plate in Fig. 4 embodiment
In figure: 1, nexine, 2, clad, 11, pit one, 12, through hole, 21, projection, 22, pit two
Detailed description of the invention
Describe in detail below in conjunction with the embodiment of accompanying drawing to utility model.
As shown in Figures 1 to 4, track heavy load base plate, comprise nexine 1 and clad 2, clad 2 is wrapped in the external surface of nexine 1, and nexine 1 is made up of thermoplastic elastomer (TPE), and clad 2 is made up of rubber, and the hardness of nexine 1 is greater than the hardness of clad 2.The upper surface of nexine 1 and soffit are symmetrically distributed with pit 1.Clad 2 with the surface that nexine 1 contacts is distributed with the projection 21 corresponding with pit 1, described pit 1 fills up by described projection 21.The upper surface of clad 2 and soffit are distributed with pit 2 22, the center line of pit 2 22 overlap with the center line of described projection 21.Pit 1 and pit 2 22 are truncated cone-shaped pit, and projection 21 is truncated cone-shaped projection.Between the pit 1 of nexine 1 upper surface and the pit 1 being symmetrically distributed in described nexine 1 soffit, there is through hole 12.
Wherein, the hardness of the nexine 1 that pad thermoplastic elastic is made is greater than the hardness of the clad 2 be made up of rubber, under heavily loaded fatigue load, the deformation displacement amount of heavy-duty cushion plate is mainly at clad 2, nexine 1 deformation displacement amount is little can not there is too large deformation, and nexine 1 pad thermoplastic elastic makes the load that its supporting capacity bears by force the overwhelming majority.Its compression set of clad 2 that rubber is made is little, under long-term fatigue load, performance is still kept preferably, the node Static stiffness of the little fastener after fatigue load effect of damage of the soft contacting piece of the low material of hardness of clad 2 changes little, even if after bearing long-term heavily loaded fatigue load, the node Static stiffness of fastener still can be kept sharply to increase.Arranging pit 1 pit 1 when described heavy-duty cushion plate bearing load at the upper surface of nexine 1 and soffit divides the surface of nexine 1 in order to pitted surface and plane, plane first bears pressure distortion, plane is depressed gradually when the deformation displacement amount of nexine 1 reaches the degree of depth of pitted surface, it is stronger that the entirety of nexine 1 bears its supporting capacity of pressure, the steady lifting of nexine 1 supporting capacity, when load increases gradually, the supporting capacity of nexine 1 also increases thereupon, make its compression set of the less reduction of deformation displacement amount of nexine 1, between the upper surface and the pit 1 of soffit of nexine 1, through hole 12 is set, when nexine 1 is out of shape, through hole 12 can be increasingly filled the compression set that the most step of the deformation displacement amount reducing nexine 1 reduces nexine 1.Arranging at the inner surface of clad 2 contact area that the projection 21 corresponding with pit 1 increase clad 2 and nexine 1 makes the better dynamic changes process born of clad 2 to the strong nexine 1 of supporting capacity, and the center line of the pit 2 22 arranged at the external surface of clad 2 overlaps with the center line of projection 21, projection 21 fills up pit 1, when backing plate bear external force, clad 2 is consistent with the malformation of nexine 1, makes the supporting capacity of backing plate stronger.
Below by reference to the accompanying drawings complete description is carried out to the technical scheme of the utility model embodiment, it should be noted that described embodiment is only the utility model part embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Claims (6)
1. track heavy load base plate, it is characterized in that comprising nexine (1) and clad (2), described clad (2) is wrapped in the external surface of nexine (1), described nexine (1) is made up of thermoplastic elastomer (TPE), described clad (2) is made up of rubber, and the hardness of described nexine (1) is greater than the hardness of clad (2).
2. track heavy load base plate according to claim 1, is characterized in that the upper surface of described nexine (1) and soffit are symmetrically distributed with pit one (11).
3. track heavy load base plate according to claim 2, it is characterized in that described clad (2) with the surface that described nexine (1) contacts is distributed with the projection (21) corresponding with described pit one (11), described pit one (11) fills up by described projection (21).
4. track heavy load base plate according to claim 3, is characterized in that the upper surface of described clad (2) and soffit are distributed with pit two (22), the center line of pit two (22) overlap with the center line of described projection (21).
5. track heavy load base plate according to claim 4, it is characterized in that described pit one (11) and pit two (22) are truncated cone-shaped pit, described projection (21) is truncated cone-shaped projection.
6. the track heavy load base plate according to claim 2 to any one of claim 5, is characterized in that having through hole (12) between the pit one (11) of described nexine (1) upper surface and the pit one (11) being symmetrically distributed in described nexine (1) soffit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706929.1U CN204238073U (en) | 2014-11-24 | 2014-11-24 | Track heavy load base plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706929.1U CN204238073U (en) | 2014-11-24 | 2014-11-24 | Track heavy load base plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204238073U true CN204238073U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420706929.1U Active CN204238073U (en) | 2014-11-24 | 2014-11-24 | Track heavy load base plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN204238073U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110004776A (en) * | 2019-04-09 | 2019-07-12 | 扬州华通橡塑有限公司 | A kind of rail traffic buffer rubber gasket and preparation method thereof |
| CN113427860A (en) * | 2021-07-02 | 2021-09-24 | 盐城市泰达橡塑制品有限公司 | Rubber tie plate under sleeper and preparation process thereof |
-
2014
- 2014-11-24 CN CN201420706929.1U patent/CN204238073U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110004776A (en) * | 2019-04-09 | 2019-07-12 | 扬州华通橡塑有限公司 | A kind of rail traffic buffer rubber gasket and preparation method thereof |
| CN113427860A (en) * | 2021-07-02 | 2021-09-24 | 盐城市泰达橡塑制品有限公司 | Rubber tie plate under sleeper and preparation process thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |