Elastic bearing plate

A technology of elastic backing plate and elastic layer, which is applied in the directions of roads, tracks, ballast layers, etc., can solve the problems of rapid material wear, low material bearing capacity and strength, and high cost, so as to improve elasticity and damping effects and increase resources. Utilization rate, the effect of reducing product cost

Inactive Publication Date: 2008-03-05
QINGDAO CREATE ENVIRONMENT CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working conditions of the elastic backing plate are very harsh. The rough surface of the ballast bed slab or scattered sand and stones will penetrate or wear the rubber surface. , there is also tearing force between gravel, and it may be soaked in oil and water. This simple rubber pad with uniform material structure is too simple and has many disadvantages, including: 1) The contradiction between vibration damping effect, bearing capacity and durability Difficult to solve: the low stiffness has good

Method used

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Experimental program
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Effect test

Embodiment 1

[0033] As shown in Figure 1, the elastic backing plate of the present invention comprises a plate body composed of a wear-resistant elastic layer 1 and a buffer elastic body 2, the buffer elastic body 2 is located between two wear-resistant elastic layers 1, and the wear-resistant elastic layer 1 and the buffer elastic The body 2 is made of rubber, but the elastic modulus of the rubber material used in the buffer elastic body 2 is lower than the elastic modulus of the rubber material used in the wear-resistant elastic layer 1 .

[0034] In order to make the ballast gravel not easy to slide on the backing plate, grooves 4 are arranged on the wear-resistant elastic layer, and the grooves 4 are arranged at intervals of different groove widths. Forming the free side, the plate body can achieve a greater amount of deformation, thereby enhancing the elasticity of the elastic backing plate. In addition, in order to improve the wear resistance and puncture resistance of the elastic ba...

Embodiment 2

[0038] As shown in Figure 4, the difference between the elastic backing plate of the present invention and Embodiment 1 is that the plate body is made of the same rubber material. In order to increase the elasticity of the backing plate, a multi-layer small cavity 10 is set in the middle of the plate body. The cavity 10 The size is set in the shape of a bone-like section structure that gradually increases from outside to inside. This bionic structure makes the elasticity of the middle part of the plate body significantly higher than that of the upper and lower solid parts, the surface stiffness is lower, and gradually transitions, and the force is more reasonable. This area constitutes the cushioning elastic body 2 of the elastic backing plate of the present invention. In the upper and lower parts of the board body where there is no cavity, the wear-resistant elastic layer 1 is bonded with the wear-resistant reinforcing fiber 5 to form the wear-resistant elastic layer 1 . At t...

Embodiment 3

[0041] As shown in Figure 5, the difference between the elastic backing plate of the present invention and the second embodiment is that a single-layer cavity 10 is set in the middle of the plate body, which increases the elasticity of the middle part of the plate body, and this region constitutes the cushioning elastic body of the elastic backing plate of the present invention. 2. The upper and lower solid regions of the plate constitute the wear-resistant elastic layer 1 . In order to enhance the ability of the cavity 10 to withstand external forces, a tensile and compressive reinforcing material 11 is provided on the cavity wall of the cavity 10, such as a fiber pipe network vulcanized on the cavity inner wall. In order to enhance the connection strength between adjacent elastic backing plates, the plate body is provided with a mushroom-shaped (similar to a floor card slot, more reasonable buckle connection) card slot 3 and a joint 29 .

[0042] In addition to the circle me...

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PUM

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Abstract

The present invention relates to railway ballast bed accessory, and is especially one kind of elastic bearing plate for use under ballast bed of railway. The elastic bearing plate includes antiwear elastic layers(s) and one buffering elastic body below or inside the antiwear elastic layers(s). The buffering elastic body has relatively lower area rigidity or elastic modulus. The elastic bearing plate has high elasticity, high bearing capacity, high durability, long service life, excellent buffering effect, and capacity of lowering vibration and noise greatly. It may be applied widely under ballast bed of railway for buffering and damping.

Description

technical field [0001] The invention belongs to railway track bed accessories, in particular to an elastic backing plate used in railways, subways, elevated light rails, and high-speed railways, especially an elastic backing plate used under integral track beds, under continuous short track beds or under ballast Elastic backing. Background technique [0002] At present, common track structures include integral track bed, ballast track bed (also known as crushed stone track bed) and continuous short-slab track bed. When the track bed is directly placed on the base (without elastic vibration isolation measures), the stiffness of the track is relatively high. , the vibration generated when the train is running cannot be effectively buffered, and the strong vibration will be transmitted to the base, and spread to the surrounding through the base structure and soil, which will have a negative impact on the work and life of the buildings and residents along the line, and on both s...

Claims

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Application Information

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IPC IPC(8): E01B19/00E01B1/00E01B9/68
Inventor 尹学军尹学民
Owner QINGDAO CREATE ENVIRONMENT CONTROL TECH
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