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Sleeper and method for installing nut sleeves thereof

A technology of nut sleeves and sleepers, which is applied in the field of sleepers, can solve the problems of non-environmental protection, low carbon, not being widely used, and the strength cannot reach light sleepers, so as to save maintenance and protection costs, and the integrity and cross-sectional shape are consistent Good performance, less damage to the environment

Active Publication Date: 2016-08-24
CHINAGRATE COMPOSITES STRUCTURE NANTONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, a large amount of CO2 will be emitted in the process of preparing raw material cement and steel bars. According to reports, the amount of CO2 emitted in the process of preparing cement and steel bars is 10 times and 200 times that of wooden sleepers, causing environmental pollution, which is not in line with environmental protection and low carbon. requirements
[0007] Although steel sleepers are firm and durable, they are expensive, heavy, difficult to move, and have little elasticity
cannot be widely used
After laying, there is a lot of friction noise between the train and the train
[0008] In addition, the composite material solid core sleeper is made of high-density foam material, which is light in weight, but the internal structure is soft, and the strength cannot meet the requirements of light sleepers.

Method used

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  • Sleeper and method for installing nut sleeves thereof
  • Sleeper and method for installing nut sleeves thereof
  • Sleeper and method for installing nut sleeves thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for installing a nut sleeve on a sleeper, comprising the following steps: firstly, from the upper surface of the sleeper body 1, the bolt holes 7 matching the bolts are drilled down to the lower surface of the sleeper body 1 (such as figure 2 shown), and then from the lower surface of the sleeper body 1, process the nut sleeve hole matching the shape of the nut sleeve 4 to the bottom plane of the upper surface of the sleeper body; then coat the nut sleeve 4 with epoxy resin 5 glue, and then coat the The nut sleeve 4 of the resin 5 glue is embedded into the sleeper from the lower surface of the sleeper body 1, so that the upper plane of the nut sleeve 4 reaches the bottom plane of the upper surface of the sleeper body 1, so that the bottom plane of the upper surface of the sleeper body 1 acts as a support for the nut. The limit function of the cover 4; then fill the empty hole of the glue storage tank 11 at the lower end of the nut cover 4 with epoxy resin, and ...

Embodiment 2

[0040] A method for installing a nut sleeve on a sleeper, comprising the following steps: first, drill a hole downward from the upper surface of the sleeper body 1 to the bolt guide rail of the fiber-reinforced resin-based composite material profile 2 of the pillow core, and cast epoxy resin into the hole 8 Resin 5, then insert the nut sleeve in the epoxy resin 5, insert the nut sleeve 4 in the hole, and wait until the epoxy resin 5 is cured.

Embodiment 3

[0042] A method for installing a nut sleeve on a sleeper, comprising the following steps: first, the upper surface of the sleeper body 1 is drilled down to the bolt guide rail of the fiber-reinforced resin-based composite material profile of the pillow core, and epoxy resin 5 is poured into the hole 8 , after the epoxy resin 5 is cured, the cured epoxy resin body is drilled and tapped to obtain the bolt threaded holes to be installed; or after casting the epoxy resin 5 in the hole 8, insert the required installation and the surface is coated with a release agent. After the epoxy resin 5 is cured, loosen the bolts and take them out to obtain the threaded holes for the bolts to be installed (such as Figure 5 shown).

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Abstract

The invention relates to a sleeper and a method for installing a nut sleeve thereof. The sleeper includes a sleeper body, the material of the sleeper body is a fiber-reinforced resin-based composite material, and the pillow core of the sleeper body is made of a fiber-reinforced resin-based composite material profile and a fiber-reinforced resin-based composite material. The fiber-reinforced resin-based composite material profile of the pillow core is first produced by a pultrusion process alone. The invention has the advantages of light weight, high strength, high bearing capacity, no deformation, no moisture absorption, stable volume, chemical corrosion resistance, aging resistance, good shock absorption, non-conductivity, simple structure and convenient on-site installation.

Description

technical field [0001] The invention relates to a sleeper used for railways and rail traffic, in particular to a sleeper and a method for installing a nut sleeve thereof. Background technique [0002] The sleeper is an indispensable material in the field of railway transportation. Its function is to connect the rail to the sleeper through the rail connector, and maintain the gauge and horizontal direction between two or more strands of steel rails through the sleeper. Geometry. And the various loads borne by the rails are evenly distributed on the sleeper foundation. Therefore, the sleeper must have the functions of light weight, high strength, weather resistance and vibration reduction. [0003] Existing sleepers have at present: wooden sleepers, reinforced concrete sleepers, steel sleepers and composite material solid sleepers, but they all have some problems. [0004] Although wooden sleepers have good elasticity, light weight, simple manufacture, and good insulation pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B3/44E01B9/02E01B29/28
CPCE01B3/46E01B9/02E01B29/28
Inventor 张跃进赵沭通
Owner CHINAGRATE COMPOSITES STRUCTURE NANTONG
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