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Elastic sleeper and production method thereof

A sleeper, elastic technology, applied in the field of elastic sleeper and its manufacturing, can solve the problem of detachment of elastic pad and sleeper body

Active Publication Date: 2015-11-11
CHINA SHENHUA ENERGY CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the existing elastic sleeper is prone to detachment of the elastic pad from the sleeper body under severe dynamic repeated loads, and to provide an elastic sleeper and a manufacturing method thereof. The sleeper body of the elastic sleeper does not need to be polished It can be firmly bonded with the elastic pad, and the manufacturing process is simpler, and the elastic sleeper of the present invention can effectively reduce the vibration noise of the railway and firmly withstand the severe vibration of the track

Method used

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  • Elastic sleeper and production method thereof
  • Elastic sleeper and production method thereof
  • Elastic sleeper and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Batching the concrete composition, wherein the weight ratio of cement, mineral powder, water, sand, stones and water reducer is 391:69:133:633:1287:3.68, and the total weight of the concrete composition is As a standard, the content of the control sand is 33.0% by weight, and the content of the water reducer is 0.80% by weight. Then the concrete composition after batching is manufactured into a sleeper body, and the flatness of the lower surface of the sleeper body is measured to be +0.8mm.

[0049] (2) According to figure 2 In the manner shown, the elastic pad is bonded directly below the rail bearing groove of the sleeper body obtained in step (1) with an adhesive to obtain sample I1, wherein the structure of the elastic pad is as follows Figure 4-Figure 6 As shown, specifically, the elastic layer is made of foam material, the protective layer is made of EPDM rubber mixed with polyester fibers, and the protective layer has a rectangular non-slip structure. Fin...

Embodiment 2

[0053] (1) Batching the concrete composition, wherein the weight ratio of cement, mineral powder, water, sand, stones and water reducer is 386:68:132:630:1280:3.65, and the total weight of the concrete composition is As a standard, the content of the control sand is 33.5% by weight, and the content of the water reducer is 0.83% by weight. Then the concrete composition after batching was manufactured into a sleeper body, and the flatness of the lower surface of the sleeper body was measured to be -0.6mm.

[0054] (2) According to figure 2 In the manner shown, the elastic pad is bonded directly below the rail bearing groove of the sleeper body obtained in step (1) with an adhesive to obtain sample I2, wherein the structure of the elastic pad is as follows Figure 4-Figure 6 As shown, specifically, the elastic layer is made of foam material, the protective layer is made of polyurethane mixed with polyester fiber, and the protective layer has a circular non-slip structure. Fina...

Embodiment 3

[0056] (1) The concrete composition is batched, wherein the weight ratio of cement, mineral powder, water, sand, stones and water reducer is 396:70:134:640:1295:3.75, and the total weight of the concrete composition is As a standard, the content of the control sand is 33.8% by weight, and the content of the water reducer is 0.85% by weight. Then the concrete composition after batching is manufactured into a sleeper body, and the flatness of the lower surface of the sleeper body is measured to be +0.8mm.

[0057] (2) According to figure 2 In the manner shown, the elastic pad is bonded directly below the rail bearing groove of the sleeper body obtained in step (1) with an adhesive to obtain sample I3, wherein the elastic pad has a structure such as Figure 4-Figure 6 As shown, specifically, the elastic layer is made of foam material, the protective layer is made of EPDM rubber mixed with polyurethane and mixed with polyester fiber, and the protective layer has a triangular ant...

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Abstract

The invention relates to the railway field and discloses an elastic sleeper and a production method thereof. The elastic sleeper comprises a sleeper body (2) and elastic cushions (1) which are arranged below the sleeper body (2), the elastic cushions (1) are bonded to the lower surface of the sleeper body (2) through binder, and the elastic cushions (1) and the sleeper body (2) are fixed together through rivets (3), wherein the deviation of flatness of the lower surface of the sleeper body (2) does not exceed + / -1 mm. According to the elastic sleeper and the production method thereof, the sleeper body of the elastic sleeper can be combined with the elastic cushion through bonding without grinding, the production process is simpler, and the elastic sleeper is capable of reducing railway vibration noise effectively and bearing the violent vibration of a railway firmly.

Description

technical field [0001] The invention relates to an elastic sleeper and a manufacturing method thereof. Background technique [0002] With the vigorous development of my country's heavy-duty and high-speed railway industry, the supporting track structure technology is also constantly improving. Due to the increase of train speed and traffic volume, the effect on the line is correspondingly increased, so that under the high-speed or heavy-load operating conditions, the damage and damage of the track structure accelerates, and the occurrence and development of line equipment diseases accelerate. Especially for ballasted track structures, problems such as fast ballast pulverization rate, large ballast bed sinking, and short maintenance and repair cycle have been reported in special sections such as bridges, tunnels, and transitional sections. [0003] Due to the complex operating environment of ballast track, especially in rigid foundation areas such as bridges and tunnels in b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B3/42C04B28/00B32B27/06B32B27/40B32B25/04
Inventor 孟宪洪何占元罗慧刚高国良范佳尤瑞林李伟马战国王开云王风
Owner CHINA SHENHUA ENERGY CO LTD
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