CN212742027U - Elastic pad for sleeper - Google Patents
Elastic pad for sleeper Download PDFInfo
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- CN212742027U CN212742027U CN202021174732.XU CN202021174732U CN212742027U CN 212742027 U CN212742027 U CN 212742027U CN 202021174732 U CN202021174732 U CN 202021174732U CN 212742027 U CN212742027 U CN 212742027U
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- sleeper
- connecting layer
- bulges
- elastic pad
- elastic
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Abstract
A sleeper elastic pad comprises an elastic pad substrate and a connecting layer, wherein the connecting layer is formed by stacking fiber yarns, and bulges formed by stacking the fiber yarns are arranged on the surface of the connecting layer; the stable and reliable connection between the sleeper pad and the concrete sleeper can be realized, and meanwhile, the construction process is simple and the installation is convenient.
Description
Technical Field
The utility model relates to a rail transit field especially relates to a sleeper resilient pad.
Background
In a railway track system, a good track structure system is an important guarantee for safe, reliable, comfortable and efficient railway operation, the structure of the existing track system can be divided into two types of ballast tracks and ballastless tracks, and the ballast tracks are the main track types of railways in China from the viewpoint of laying mileage. In the operation process of the ballast track, due to repeated impact force of train wheel track force, the dynamic load is transmitted to ballast of the track bed by the concrete sleeper, so that the track bed has the problems of pulverization, sinking and the like, maintenance and maintenance work such as track bed tamping and screening, steel rail polishing and the like needs to be carried out regularly, and a large amount of manpower and material resources are consumed.
In order to solve the problems, the prior art discloses a sleeper elastic base plate which is arranged between a concrete sleeper and a railway ballast, and buffers dynamic impact force of a wheel rail when a train passes through the elastic base plate, so that the problems of pulverization and sinking of a railway bed are solved to a certain extent. However, the connection between the elastic backing plate and the concrete in the prior art has some problems, for example, in CN201721828898, the process is complicated to implement by using an anchor for connection; in other technologies, the elastic pad and the concrete sleeper are bonded together by adopting a bonding technical means, and the debonding phenomenon occurs in the later use process, thereby bringing serious problems to the use.
For the above reasons, a sleeper elastic pad has been developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a sleeper cushion, can realize that the reliable and stable between sleeper cushion and the concrete sleeper is connected, construction simple process simultaneously, simple to operate.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the elastic sleeper pad comprises an elastic pad substrate and a connecting layer, wherein the connecting layer is formed by stacking fiber yarns, and bulges formed by stacking the fiber yarns are arranged on the surface of the connecting layer.
The bulges on the surface of the connecting layer are distributed on the upper surface and the lower surface of the connecting layer, the bulges on the upper surface of the connecting layer are embedded into the concrete sleeper substrate, and the bulges on the lower surface of the connecting layer are embedded into the elastic pad substrate.
The bulges are internally provided with gaps surrounded by fiber yarns, and concrete sleeper matrixes and elastic pad substrates are embedded into the gaps to form an interpenetrating structure.
The diameter of the fiber filaments of the connecting layer is 0.2mm to 0.6 mm.
The bulges on the upper surface of the connecting layer are sunken corresponding to the lower surface of the connecting layer, and the bulges on the lower surface of the connecting layer are sunken corresponding to the upper surface of the connecting layer.
And a puncture-resistant layer is arranged below the elastic cushion substrate.
The elastic cushion substrate is made of polyurethane foam material.
The connecting layer fiber yarns are made of nylon materials.
The utility model has the advantages that: the elastic pad of the sleeper is arranged between the concrete sleeper and a track bed, and the elastic pad base plate adopts a microcellular foaming structure, preferably polyurethane foaming elastomer material; solid elastomeric structures such as elastomeric rubbers and the like may also be employed; the elastic cushion base plate can provide proper elasticity between the concrete sleeper and the track bed, buffer the impact force applied to the track bed and prevent the track bed from being damaged; the puncture-resistant layer is in contact with the surface of the track bed, so that the elastic pad substrate of the sleeper is protected from being damaged by the surface of the track bed; the connecting layer is a three-dimensional reticular pad formed by piling up fiber yarns, the protrusions and the depressions which are regularly distributed are formed on the upper surface and the lower surface of the connecting layer through the fiber yarns, the protrusions on the upper surface correspond to the depressions on the lower surface, the depressions on the upper surface correspond to the protrusions on the lower surface, the protrusions formed by the fibers on the upper surface are embedded into the concrete sleeper, the protrusions formed by the fibers on the lower surface are embedded into the elastic pad substrate, so that the sleeper elastic pad and the concrete sleeper are reliably connected together, the fiber yarns mutually form gaps between the fiber yarns and the fibers while piling up to form the protrusions, the gaps are also filled with concrete matrix materials or elastic pad matrix materials, mutual penetrating structures are formed between the protrusions of the fiber yarns and the concrete matrix, the protrusions of the fiber yarns and the elastic pad substrate, the binding force between the sleeper elastic pad and the concrete sleeper is further increased, and the protrusions are connected through the fiber, a three-dimensional interconnected net-shaped structure is formed, so that the overall strength of the three-dimensional net pad is further improved; the utility model discloses an in the arch of surface imbeds concrete sleeper and the cushion base member respectively about the articulamentum, in the gap between the while concrete sleeper base member and the cushion base member embedding cellosilk, form the structure that runs through each other, can increase the cohesion between sleeper cushion and the concrete sleeper by a wide margin, solve the fixed effect of current sleeper cushion not good, the problem that drops easily.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a schematic view of the assembly structure;
FIG. 2 is a schematic view of a connection layer structure;
FIG. 3 is a schematic view of a bump structure;
FIG. 4 is a schematic view of a configuration in use;
in fig. 1: the anti-puncture track comprises an elastic cushion substrate 1, a puncture-resistant layer 2, a connecting layer 3, a track bed 4, a concrete sleeper 5 and a track 6.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
with reference to fig. 1-4, a sleeper elastic pad, disposed between a concrete sleeper 5 and a track bed 4, includes an elastic pad base plate 1, a puncture-resistant layer 2, and a connection layer 3; the elastic cushion substrate 1 is arranged between the puncture-resistant layer 2 and the connecting layer 3, the elastic cushion substrate 1 adopts a microcellular foaming structure, and polyurethane foaming elastomer materials are preferably selected; solid elastomeric structures such as elastomeric rubbers and the like may also be employed; the elastic cushion base plate 1 can provide proper elasticity between the concrete sleeper 5 and the track bed 4, buffer impact force applied to the track bed 4 and prevent the track bed 4 from being damaged.
A sleeper elastic pad comprises an elastic pad substrate 1, a puncture-resistant layer 2 and a connecting layer 3; the bottom of sleeper elastic pad is located to puncture-resistant layer 2, its below and the contact of railway roadbed 4, the preferred non-woven fabrics of puncture-resistant layer 2 in addition, can also select for use materials such as cord fabric, dacron, protection elastic pad base plate 1 is not damaged by railway roadbed 4 surface.
A sleeper elastic pad comprises an elastic pad substrate 1, a puncture-resistant layer 2 and a connecting layer 3; the connecting layer 3 is a three-dimensional reticular pad formed by piling up fiber yarns, the protrusions 3.1 and the depressions which are regularly distributed are formed on the upper surface and the lower surface of the connecting layer through the fiber yarns, the protrusions 3.1 on the upper surface correspond to the depressions on the lower surface, the depressions on the upper surface correspond to the protrusions 3.1 on the lower surface, the protrusions 3.1 formed by the fibers on the upper surface are embedded into the concrete sleeper 5, and the protrusions 3.1 formed by the fibers on the lower surface are embedded into the elastic pad substrate 1, so that the sleeper elastic pad and the concrete sleeper 5 are reliably connected together.
Furthermore, the connecting layer 3 is a three-dimensional net-shaped pad formed by stacking fiber yarns, the upper surface and the lower surface of the connecting layer are provided with protrusions 3.1 and depressions which are regularly arranged, the protrusions 3.1 are formed by stacking fiber yarns with a certain number and a certain diameter, the diameter of each fiber yarn is 0.2mm to 0.6mm, the fiber yarns are stacked to form the protrusions 3.1 and gaps are formed between the fiber yarns and the fibers, the protrusions 3.1 are embedded into the concrete sleeper 5 or the elastic pad base plate 1, and the gaps are filled with the base material of the concrete sleeper 5 or the base material of the elastic pad 1, a mutually penetrating structure is formed between the protrusions 3.1 and the base body of the concrete sleeper 5, the protrusions 3.1 and the elastic pad base plate 1, and the binding force between the sleeper elastic pad and the concrete sleeper 5 is further increased.
Further, the different fiber filament protrusions 3.1 are interconnected through fiber filaments to form a three-dimensional interconnected net-shaped structure, so that the overall strength of the three-dimensional online store is further improved.
Claims (8)
1. The utility model provides a sleeper elastic cushion, includes elastic cushion base plate (1), articulamentum (3), its characterized in that: the connecting layer (3) is formed by stacking fiber yarns, and protrusions (3.1) formed by stacking the fiber yarns are arranged on the surface of the connecting layer (3).
2. A sleeper elastomeric pad as defined in claim 1 wherein: the concrete sleeper is characterized in that the bulges (3.1) on the surface of the connecting layer (3) are distributed on the upper surface and the lower surface of the connecting layer (3), the bulges (3.1) on the upper surface of the connecting layer (3) are embedded into the base body of the concrete sleeper (5), and the bulges (3.1) on the lower surface of the connecting layer (3) are embedded into the elastic pad base plate (1).
3. A sleeper elastomeric pad as defined in claim 1 wherein: the bulges (3.1) are internally provided with gaps surrounded by fiber yarns, and concrete sleeper (5) matrixes and elastic pad substrates (1) are embedded into the gaps to form an interpenetrating structure.
4. A sleeper elastomeric pad as defined in claim 1 wherein: the diameter of the fiber filaments of the connecting layer (3) is 0.2mm to 0.6 mm.
5. A sleeper elastomeric pad as defined in claim 1 wherein: the bulges (3.1) on the upper surface of the connecting layer (3) are sunken corresponding to the lower surface of the connecting layer (3), and the bulges on the lower surface of the connecting layer (3) are sunken corresponding to the upper surface of the connecting layer (3).
6. A sleeper elastomeric pad as defined in claim 1 wherein: a puncture-resistant layer (2) is arranged below the elastic cushion substrate (1).
7. A sleeper elastomeric pad as defined in claim 1 wherein: the elastic cushion substrate (1) is made of polyurethane foam material.
8. A sleeper elastomeric pad as defined in claim 1 wherein: the connecting layer (3) is made of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021174732.XU CN212742027U (en) | 2020-06-22 | 2020-06-22 | Elastic pad for sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021174732.XU CN212742027U (en) | 2020-06-22 | 2020-06-22 | Elastic pad for sleeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212742027U true CN212742027U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021174732.XU Active CN212742027U (en) | 2020-06-22 | 2020-06-22 | Elastic pad for sleeper |
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| Country | Link |
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| CN (1) | CN212742027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235971A (en) * | 2020-02-21 | 2020-06-05 | 株洲时代新材料科技股份有限公司 | Composite sleeper lower backing plate and sleeper thereof |
-
2020
- 2020-06-22 CN CN202021174732.XU patent/CN212742027U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235971A (en) * | 2020-02-21 | 2020-06-05 | 株洲时代新材料科技股份有限公司 | Composite sleeper lower backing plate and sleeper thereof |
| CN111235971B (en) * | 2020-02-21 | 2022-04-26 | 株洲时代新材料科技股份有限公司 | Composite sleeper lower backing plate and sleeper thereof |
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