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Composite sleeper with lattice structure

A technology of composite materials and sleepers, which is applied in the direction of tracks, polyurea/polyurethane coatings, coatings, etc., can solve the problems of uneven stress and instability of the structure, and achieve the improvement of uneven stress, low rigidity, and good high resistance The effect of low temperature

Active Publication Date: 2017-03-01
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese Patent Document No. CN 102296494 discloses a sleeper with a "dish"-shaped structure, which further reduces the production cost, but when this technology is applied to a sleeper with a larger height, it is easy to cause instability and the structure is not stressed enough Uniform, its fatigue resistance and corrosion resistance need to be further improved

Method used

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  • Composite sleeper with lattice structure
  • Composite sleeper with lattice structure
  • Composite sleeper with lattice structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] a kind of like Figure 1 to Figure 6The lattice-shaped composite material sleeper of the present invention as shown includes a sleeper body 1 and end caps 2 arranged at both ends of the sleeper body 1. The sleeper body 1 is a cuboid structure with a lattice-shaped cavity 4. One side of the end cap 2 The surface is provided with lattice-shaped protrusions 22, and the end cover 2 is fitted with both ends of the sleeper body 1, and after fitting, the lattice-shaped protrusions 22 form a fit with the lattice-shaped cavity 4 in the sleeper body 1 and close the sleeper body 1 at both ends.

[0042] Such as Figure 2 ~ Figure 4 shown. In the lattice-shaped composite material sleeper of this embodiment, the lattice-shaped cavity 4 is a "Tian"-shaped hollow cavity, which is divided into four rectangular parallelepiped hollow passages with the same size and shape, and four rectangular parallelepiped hollow passages. The hollow channels are symmetrically distributed in pairs, s...

Embodiment 2

[0048] a kind of like Figure 1 to Figure 6 The lattice-shaped composite material sleeper of the present invention as shown includes a sleeper body 1 and end caps 2 arranged at both ends of the sleeper body 1. The sleeper body 1 is a cuboid structure with a lattice-shaped cavity 4. One side of the end cap 2 The surface is provided with lattice-shaped protrusions 22, and the end cover 2 is fitted with both ends of the sleeper body 1, and after fitting, the lattice-shaped protrusions 22 form a fit with the lattice-shaped cavity 4 in the sleeper body 1 and close the sleeper body 1 at both ends.

[0049] In the grid structure composite material sleeper of the present embodiment, as Figure 2 ~ Figure 4 As shown, the lattice-shaped cavity 4 is a "Tian"-shaped hollow cavity, including four cuboid hollow channels with the same size and shape and arranged in parallel. The four cuboid hollow channels are symmetrically distributed in pairs, as Figure 5 ~ Figure 6 As shown, the lattic...

Embodiment 3

[0055] a kind of like Figure 1 to Figure 6 The lattice-shaped composite material sleeper of the present invention as shown includes a sleeper body 1 and end caps 2 arranged at both ends of the sleeper body 1. The sleeper body 1 is a cuboid structure with a lattice-shaped cavity 4. One side of the end cap 2 The surface is provided with lattice-shaped protrusions 22, and the end cover 2 is fitted with both ends of the sleeper body 1, and after fitting, the lattice-shaped protrusions 22 form a fit with the lattice-shaped cavity 4 in the sleeper body 1 and close the sleeper body 1 at both ends.

[0056] Such as Figure 2 ~ Figure 4 As shown, in the lattice-shaped composite material sleeper of this embodiment, the lattice-shaped cavity 4 is a "Tian"-shaped hollow cavity, which is divided into four cuboid hollow passages with the same size and shape and arranged in parallel. The four rectangular parallelepiped hollow channels are symmetrically distributed in pairs, and the lattic...

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Abstract

The invention discloses a latticed composite material sleeper. The composite material sleeper comprises a sleeper body (1) and end caps (2) arranged at the two ends of the sleeper body (1). The sleeper body (1) is of a cuboid structure with latticed cavities (4). The surface of one side of each end cap (2) is provided with latticed protrusions (22). The end caps (2) are combined with the two ends of the sleeper body (1) in an embedded mode, and after the end caps are combined with the two ends of the sleeper body (1) in the embedded mode, the latticed protrusions (22) are matched with the latticed cavities (4) in the sleeper body (1) so that the two ends of the sleeper body (1) can be sealed. According to the composite material sleeper, resin is used as a substrate, and continuous glass fibers are used as a reinforcing material. The inner surface and the outer surface of the composite material sleeper are each coated with a two-component polyurethane waterproof coating. The end caps (2) and the ends of the sleeper body (1) are combined into a whole in the embedded mode through gluing and / or connection with fasteners. The sleeper has the advantages of being good in elasticity, high in strength, long in service life, resistant to corrosion, easy to machine, low in weight, convenient to lay and replace, good in insulating property and the like.

Description

technical field [0001] The invention belongs to the field of railway engineering construction, and in particular relates to a composite material sleeper with a special special-shaped structure for railway track laying construction. Background technique [0002] At present, the sleepers used in my country's railway line engineering are mainly wooden sleepers and concrete sleepers, but the concrete sleepers are inconvenient to install and replace due to their heavy weight, so they are usually used in special areas such as railway bridge decks and wooden switch sleepers. Use wooden sleepers. Wooden sleepers are low in cost, good in elasticity, simple in shape, easy to process, light in weight, easy to lay and replace, and have good insulation performance. However, there are fewer and fewer woods that meet the size requirements, and the wood is not corrosion-resistant, and usually needs anti-corrosion treatment, and the chemical substances produced during the treatment process a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B3/44C08L101/02C08K13/04C08K7/14C08K5/14C09D175/04
Inventor 吕文丽李再轲王甲世曾挚王虎黄河
Owner ZHUZHOU TIMES NEW MATERIALS TECH