Polymer composite side bearing wear plate

A composite material and wear plate technology, applied in layered products, synthetic resin layered products, devices for lateral relative movement between the underframe and the bogie, etc., can solve the problems of large changes in friction coefficient and instability, etc. Achieving the effect of stable friction coefficient, improved stability, increased speed stability and reliability

Active Publication Date: 2011-05-11
HEBEI XINJI TENGYUE INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current side bearing wear plate is made of modified nylon, and its friction coefficient is greatly affected by temperature and humidity. The friction coefficient is 0.34 under normal conditions, and 0.38 under wet conditions. The friction coefficient when the temperature is as high as 70 degrees Celsius The coefficient is 0.23, which does not meet the requirements, and the friction coefficient changes greatly, which is very unstable

Method used

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  • Polymer composite side bearing wear plate
  • Polymer composite side bearing wear plate
  • Polymer composite side bearing wear plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: as figure 1 , figure 2 As shown, the side bearing wear plate of polymer composite material includes a plate main body and a conductive copper column 3 passing through the plate main body; A wear-resistant layer 1 made of wear-resistant material, the lower layer is a reinforced layer 2 made of glass fiber reinforced plastic material; the wear-resistant layer 1 is embedded in the reinforced layer 2, and the wear-resistant layer 1 and the reinforced layer 2 the upper surface is even. The wear-resistant material used in the wear-resistant layer is composed of the following raw materials in parts by weight: 17 parts of sepiolite fiber, 5 parts of glass fiber, 8 parts of kaolin, 2 parts of aramid fiber, 7 parts of graphite particles, 2 parts of copper fiber, titanium stone powder 1 part, flake graphite 4 parts, bauxite 6 parts and inorganic composite fiber 1 part.

[0011] The steps of using the raw materials of the wear-resistant material of this embodiment...

Embodiment 2

[0023] Example 2: The structure and preparation method of the polymer composite side bearing wear plate are the same as in Example 1, wherein the wear-resistant material used in the wear-resistant layer is composed of the following raw materials in parts by weight: 12 parts of sepiolite fiber, 4 parts of glass fiber 6 parts of kaolin, 1.5 parts of aramid fiber, 5 parts of graphite particles, 1.5 parts of copper fiber, 0.5 part of titanite powder, 3 parts of flake graphite, 4 parts of bauxite and 0.5 part of inorganic composite fiber.

Embodiment 3

[0024] Example 3: The structure and preparation method of the polymer composite side bearing wear plate are the same as in Example 1. The wear-resistant material used in the wear-resistant layer is composed of the following raw materials in parts by weight: 22 parts of sepiolite fiber, 6 parts of glass fiber, kaolin 10 parts, 2.5 parts of aramid fiber, 9 parts of graphite particles, 2.5 parts of copper fiber, 1.5 parts of titanite powder, 5 parts of flake graphite, 8 parts of bauxite and 1.5 parts of inorganic composite fiber.

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Abstract

The invention discloses a polymer composite side bearing wear plate which is suitable for the field of rail freight. The main body of the plate is a double-layer structure, wherein the upper layer is a wear resistant layer made of a wear resistant material, and the lower layer is an enhancement layer made of a glass fiber reinforced plastic material; and the wear resistant material is prepared from the following raw materials in parts by weight: 12-22 parts of sepiolite fiber, 4-6 parts of glass fiber, 6-10 parts of kaolin, 1.5-2.5 parts of aramid fiber, 5-9 parts of graphite particle, 1.5-2.5 parts of copper fiber, 0.5-1.5 parts of titanium stone powder, 3-5 parts of crystalline flake graphite, 4-8 parts of bauxite and 0.5-1.5 parts of inorganic composite fiber. In the invention, the friction coefficient of the polymer composite side bearing wear plate has small change under the influences of temperature and humidity, thus the friction coefficient is stable, which is beneficial to the improvement of the stability of an elastic side bearing gyroscopic resistance moment so as to further improve the stability and the reliability of the running properties of a heavy-load speed increased freight car.

Description

technical field [0001] The invention relates to a side bearing wear plate for railway freight cars, in particular to a polymer composite material side bearing wear plate. Background technique [0002] The slewing resistance moment produced by the elastic side bearing of railway freight car locomotive is an important parameter of the running stability of the speed-up freight car. In order to ensure the stability of the slewing resistance moment, the friction coefficient of the wear plate of the elastic side bearing is required to be controlled within the range of 0.3-0.4. The current side bearing wear plate is made of modified nylon, and its friction coefficient is greatly affected by temperature and humidity. The friction coefficient is 0.34 under normal conditions, and 0.38 under wet conditions. The friction coefficient when the temperature is as high as 70 degrees Celsius The coefficient is 0.23, which does not meet the requirements, and the friction coefficient changes gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/14C04B28/00B32B27/06B32B33/00
Inventor 刘占峰
Owner HEBEI XINJI TENGYUE INDAL
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