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Wearing plate for eddy current track braking system and manufacturing method thereof

A braking system and manufacturing method technology, applied in the direction of railway braking system, braking components interacting with the track, transportation and packaging, etc., can solve the problems of braking force loss, natural eddy current braking system can not work, etc., Achieve the effect of eliminating the magnetic gap, enhancing the wear resistance and improving the permanent magnetic performance

Inactive Publication Date: 2018-07-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing eddy current rail braking system adopted by ICE3 uses pressure release and lowering to ensure that the air cylinder operates when the air system fails, when the circuit fails, the loss of excitation will directly lead to the loss of braking force
In addition, when the power supply is cut off when the train is parked, the natural eddy current braking system cannot work

Method used

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  • Wearing plate for eddy current track braking system and manufacturing method thereof
  • Wearing plate for eddy current track braking system and manufacturing method thereof
  • Wearing plate for eddy current track braking system and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, a wear plate for an eddy current rail braking system.

[0042] like figure 1 As shown, the wear plate provided by the present invention includes a metal base material 1 and a non-metal base material 2. Part of the surfaces of the metal base material 1 and the non-metal base material 2 are bonded together, and the bonded part of the surface is hereinafter referred to as the contact surface.

[0043] Wherein, the material of the metal substrate 1 is copper alloy, the material of the non-metal substrate 2 is a polymer material, and the volume ratio of the metal substrate 1 and the non-metal substrate 2 is 4:1-3:2.

[0044] Preferably, the volume of the metal substrate 1 accounts for 60% of the total volume, the volume of the non-metallic material accounts for 40% of the total volume, or the volume of the metal substrate 1 accounts for 80% of the total volume, and the volume of the non-metallic material accounts for 40% of the total volume. 20% of the volume....

Embodiment 2

[0055] Embodiment 2, a preparation method of a wear plate for an eddy current rail braking system.

[0056] The method of this example is used to prepare the wear plate described in Example 1.

[0057] The method specifically includes the following steps:

[0058] (1) Prefabricated metal substrate.

[0059] The metal substrate is the basic part of the wear plate. First, the material and shape of the metal substrate need to be determined, and the contact surface should be treated at the same time, so that the metal and non-metal parts can be combined. The specific steps of prefabricating the metal substrate are as follows:

[0060] (1.1) Weigh the required pure Cu block, pure Fe block, pure Ni block and pure Ag block according to the composition ratio of the metal substrate.

[0061] (1.2) Put the above-mentioned raw materials in a medium-frequency induction furnace to heat and melt, and cover the molten pool with a graphite layer for protection when melting.

[0062] (1.3)...

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Abstract

The invention provides a wearing plate for an eddy current track braking system, and the wearing plate comprises a metal substrate and a non-metallic substrate, wherein the metal substrate and part ofthe surface of the non-metallic substrate are combined together; and the non-metallic substrate is made of polymer material, and the volume ratio of the metal substrate and the polymer material substrate is 4:1-3:2. The invention further provides a manufacturing method of the wearing plate. The manufacturing method comprises metal substrate prefabrication, metal substrate machining, contact surface pore-forming corrosion injection molding of the non-metallic substrate on the contact surface, and molding and machining of the wearing plate. According to the wearing plate for the eddy current track braking system, the wearing plate can be positioned between a braking system and a track, and the braking capacity of the system can be improved through material structures. The wearing plate forthe eddy current track braking system can effectively prevent the whole structure formed by the combination of the metal substrate and the non-metallic substrate from being displaced by the eddy current and friction effect in a long period.

Description

technical field [0001] The invention relates to rail brake system components, in particular to a wear plate for an eddy current rail brake system and a manufacturing method thereof. Background technique [0002] The shortage of railway transport capacity has become one of the main contradictions restricting the development of my country's economic construction. Due to its advantages of large transportation capacity, safety and comfort, all-weather transportation and sustainability, high-speed railway has become the basic trend of railway development and the basic guarantee for national modernization. According to the "Medium and Long-Term Railway Network Planning", the construction mileage of my country's high-speed railway will reach 18,000 kilometers in 2020. [0003] Braking technology is one of the nine key technologies of high-speed trains and is the "protector of life". During the braking process, the braking power is proportional to the cube of the train speed and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H7/08C22C9/00C22C9/06C22C1/02C22F1/08C25F3/02B29C39/10B29C39/18B23P15/00
CPCB61H7/083B23P15/00B29C39/10B29C39/18C22C1/02C22C9/00C22C9/06C22F1/08C25F3/02
Inventor 刘嘉斌马吉恩方攸同许博文黄晓艳
Owner ZHEJIANG UNIV
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