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Brake disc with gradient feature bionic coupling element and preparation method thereof

A technology of coupling unit and brake disc, applied in the direction of brake disc, brake type, brake components, etc., can solve the problems of accelerated brake disc thermal cracks, fatigue and inconsistent wear, unfavorable brake disc heat dissipation, etc. Anti-cracking performance, effect of retarding diffusion

Active Publication Date: 2017-05-31
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention can effectively suppress crack propagation, but the bionic coupling body is embedded on the surface of the brake disc through machinery, laser, and sintering, which improves the hardness of the processing area. Are prone to wear, resulting in uneven disc wear
Secondly, due to the disc-shaped structure of the brake disc, the temperature at the edge is higher than the temperature at the center, but the disc body and the bionic material are homogeneous materials, and their heat resistance and wear resistance are consistent Yes, this kind of consistency just brings the inconsistency of fatigue and wear, and will also accelerate the speed of thermal cracking of the brake disc to a certain extent; in addition, because the bionic unit fills the entire brake disc recess, it is not conducive to the cooling

Method used

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  • Brake disc with gradient feature bionic coupling element and preparation method thereof
  • Brake disc with gradient feature bionic coupling element and preparation method thereof
  • Brake disc with gradient feature bionic coupling element and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The proportions of aluminum oxide in each filled ring from the inside to the outside are 5%, 10%, 15%, 20% and 25% in sequence.

Embodiment 2

[0024] The proportions of aluminum oxide in each filled ring from the inside to the outside are 7.5%, 12.5%, 17.5%, 22.5% and 27.5%.

Embodiment 3

[0026] The proportions of aluminum oxide in each filled ring from the inside to the outside are 10%, 15%, 20%, 25% and 30% in sequence.

[0027] like image 3 As shown, after being used for 30 minutes under the same conditions, the wear amounts of Examples 1, 2 and 3 were 0.02g, 0.016g and 0.013g respectively; the wear amount of the conventional brake disc was 0.1g. It can be seen that the wear resistance of each embodiment is obviously better than that of the conventional brake disc, and among the embodiments, the wear resistance of embodiment 3 is the most superior.

[0028] The manufacturing method of the brake disc with gradient characteristic bionic coupling unit body is as follows:

[0029] Step 1. Drill a hole with a diameter of 65mm in the center of the base plate.

[0030] Step 2: Milling is used to process annular groove groups on both ends of the base plate 1 . The annular groove group is composed of five annular grooves of different sizes. The five annular groov...

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Abstract

The invention discloses a brake disc with gradient feature bionic coupling element and a preparation method thereof. Cracks caused by thermal fatigue are one of the main failure modes of a brake disc. At present, the crazing resistance of the brake disc is mainly improved by optimizing a brake disc structure and optimizing the existing brake disc material components. The brake disc with gradient feature bionic coupling element comprises a base plate and packing rings. A central hole is formed in the base plate. Both the two end faces of the base plate are provided with a circular groove group, the circular groove group is composed of five circular grooves in different sizes, and a packing ring is disposed in each circular groove. Alloy serves as materials of the packing ring and the alloy is compounded by aluminium and aluminium oxide. The brake disc with the gradient feature bionic coupling element and the preparation method thereof effectively improve the crazing resistance of the brake disc. The proportion of the aluminium oxide in the packing ring gradually increases from the inner side to the outer side, which is capable of effectively preventing the cracks from spreading.

Description

technical field [0001] The invention relates to the technical field of brake discs, in particular to a brake disc suitable for high-speed trains and having a gradient characteristic bionic coupling unit body and a manufacturing method thereof. Background technique [0002] The braking system is a series of special devices that can force the speed of the car to be reduced. The part of the braking system that is used to hinder the movement or movement tendency of the vehicle is called the brake. [0003] Most brakes work by using the friction between the working surfaces of stationary elements attached to the body or frame and rotating elements attached to the wheels or propshaft to create a braking torque. During the frictional contact process, the temperature of the contact part of the brake disc and the friction plate will rise, and the faster the train speed, the higher the temperature rise. The high temperature on the surface of the brake disc will not only cause the bra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/12B23P15/18
CPCB23P15/18F16D65/125
Inventor 杨肖许晓娇顾瞻华倪敬
Owner HANGZHOU DIANZI UNIV
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