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Railway track rubber shock absorbing structure and rubber

A technology of rubber shock absorption and railway track, which is applied in the rubber shock absorption structure of railway track and rubber field, which can solve the problems of uneven levelness of railway sleepers and unsatisfactory use effects, and achieve the effect of slowing down multi-dimensional vibration and reducing noise

Pending Publication Date: 2018-09-28
ZHEJIANG SANWEI RUBBER ITEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use effect of existing railway rubber pads is still not ideal, resulting in uneven levelness of railway sleepers, and railway sleepers are prone to lateral, longitudinal and vertical vibrations during use

Method used

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  • Railway track rubber shock absorbing structure and rubber
  • Railway track rubber shock absorbing structure and rubber
  • Railway track rubber shock absorbing structure and rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 , figure 2 , image 3 and Figure 4 , the railway track rubber damping structure, including a cement base 1 and a prefabricated sleeper rail component 2 above the cement base 1, and a rubber damping rubber damper located between the cement base 1 and the sleeper rail prefabricated component 2 Shock pad 3; the rubber shock pad 3 from top to bottom is a trapezoidal rubber balance buffer layer 31, a first fiber support net 32, a first pressure-bearing rigid damping core rubber layer 33, a second fiber support net 34, and a second fiber support net 34. Two pressure-bearing rigid damping core rubber layers 35, the third fiber support network 36, the third pressure-bearing rigid damping core rubber layer 37, the fourth fiber support network 38 and the grid skeleton bonding layer 39, each layer is bonded by vulcanization A group of trapezoidal strips 311 are uniformly arranged on the trapezoidal rubber balance buffer layer 31 .

[0024] The material formula o...

Embodiment 2

[0031] Different from Example 1, in Example 2, the material formula of the trapezoidal rubber balance buffer layer 31 is calculated in parts by weight: 30 parts of trans polyisoprene, 40 parts of chlorosulfonated polyethylene, high cis 30 parts of formula butadiene, 2 parts of magnesium oxide, 3 parts of anti-aging agent, 2 parts of accelerator, 1.5 parts of stearic acid, 22 parts of carbon black N330, 28 parts of carbon black N770, 10 parts of carbon black N990, 12 parts of softener , 4 parts of zinc oxide, 2.6 parts of lead oxide and 1.2 parts of vulcanizing agent.

[0032] The material formulations of the first pressure-bearing rigid damping core rubber layer 33, the second pressure-bearing rigid damping core rubber layer 35 and the third pressure-bearing rigid damping core rubber layer 37 are by weight: trans polyisoprene 20 parts, 50 parts of chlorosulfonated polyethylene, 30 parts of high cis-butadiene, 4 parts of magnesium oxide, 3 parts of anti-aging agent, 2.2 parts o...

Embodiment 3

[0035] The difference from Example 1 is that in Example 3, the material formula of the trapezoidal rubber balance buffer layer 31 is calculated in parts by weight: 30 parts of trans polyisoprene, 70 parts of chlorosulfonated polyethylene, high cis 30 parts of formula butadiene, 6 parts of magnesium oxide, 5 parts of anti-aging agent, 5 parts of accelerator, 3 parts of stearic acid, 50 parts of carbon black N330, 50 parts of carbon black N770, 50 parts of carbon black N990, 15 parts of softener , 10 parts of zinc oxide, 5 parts of lead oxide and 3 parts of vulcanizing agent.

[0036] The material formulations of the first pressure-bearing rigid damping core rubber layer 33, the second pressure-bearing rigid damping core rubber layer 35 and the third pressure-bearing rigid damping core rubber layer 37 are by weight: trans polyisoprene 20 parts, 50 parts of chlorosulfonated polyethylene, 60 parts of high cis-butadiene, 6 parts of magnesium oxide, 5 parts of anti-aging agent, 5 pa...

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Abstract

The invention discloses a railway track rubber shock absorbing structure. The railway track rubber shock absorbing structure comprises a cement base, a sleeper rail prefabricated part disposed on thecement base and a rubber shock absorbing pad disposed between the cement base and the sleeper rail prefabricated part. The rubber shock absorbing pad comprises a trapezoid rubber balance buffer layer,a first fiber supporting network, a first pressure-bearing rigid damping core rubber layer, a second fiber supporting network, a second pressure-bearing rigid damping core rubber layer, a third fibersupporting network, a third pressure-bearing rigid damping core rubber layer, a fourth fiber supporting network and a grid skeleton bonding layer from top to bottom, and the layers are bonded throughvulcanizing. The trapezoid rubber balance buffer layer is uniformly provided with a set of trapezoidal strips. A railway constructed according to the railway track rubber shock absorbing structure ishigh in levelness of railway sleeper rails, the horizontal, longitudinal and vertical vibrations are low during use, and meanwhile, the noise is greatly reduced.

Description

technical field [0001] The invention relates to railway technology, in particular to a railway track rubber damping structure and a rubber specially used for the railway track rubber damping structure of the invention. Background technique [0002] Rubber is a polymer material that can quickly recover from deformation under large deformation and has high elasticity. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber products have been widely used in all aspects of industry or life. [0003] Rail transit (railway transportation) is a land transportation method in which locomotives pull train vehicles on two parallel rails. According to the medium and long-term railway network plan, by 2020, the operating mileage of railways will reach more than 150,000 kilometers. Controlling noise and vibration in rail transit is an important topic to improve passeng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B2/00E01B19/00C08L23/34C08L9/00C08K13/02C08K3/22C08K5/09C08K3/04
CPCE01B2/00E01B19/00E01B19/003C08L9/00C08L23/34C08K2003/2296C08K2003/2234C08K2003/222C08K2201/014C08L2205/025C08L2205/03C08K13/02C08K3/22C08K5/09C08K3/04
Inventor 石水祥吴兰有
Owner ZHEJIANG SANWEI RUBBER ITEM CO LTD
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