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High-speed train brake pad for optimizing friction particle combination and installation modes

A technology of brake pads and friction particles, applied in the direction of friction linings, brake types, brake components, etc., can solve the problem of reducing train operation efficiency and economic benefits, harming the physical and mental health of passengers and residents along the way, and inconvenient flexible installation of friction particles Arrangement and other issues to achieve the effect of ensuring braking reliability and safety, reducing production and operating costs, and improving safety and reliability

Active Publication Date: 2020-07-10
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of adjuster has a complex structure, which is not convenient for the flexible installation and arrangement of friction particles, and its performance in terms of vibration reduction, noise reduction and stress distribution is relatively poor.
[0007] The above discussion illustrates the problems existing in the current braking system, which will cause severe noise pollution during the braking process of the train, and harm the physical and mental health of passengers and residents along the way.
And greatly shorten the service life of the brake pads, and may even cause braking accidents, reducing the operating efficiency and economic benefits of the train
In short, the existing technical solutions still have certain deficiencies in the safety, reliability and comfort of train braking.

Method used

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  • High-speed train brake pad for optimizing friction particle combination and installation modes
  • High-speed train brake pad for optimizing friction particle combination and installation modes
  • High-speed train brake pad for optimizing friction particle combination and installation modes

Examples

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Comparison scheme
Effect test

Embodiment 1

[0051] A high-speed train brake pad with optimized friction particle combination and installation method, comprising a brake disc 1, a brake pad structure and a loading device, the loading device is connected to the brake pad structure, and the brake pad structure is connected to the brake pad structure The brake disc 1 cooperates, and the brake pad structure includes a brake pad back plate 2, and several friction particles 7 are arranged on the brake pad back plate 2, and the several friction particles 7 have two types and above shape. In this embodiment, the structure of the brake pad back plate 2 is left-right symmetrical, and its shape is arc-like, and it is stamped and formed by steel material.

[0052] The friction particles 7 include polygonal friction particles 702 and circular friction particles 701 . In this embodiment, the polygonal friction particles 702 are regular hexagonal friction particles.

[0053] Studies have shown that hexagonal friction particles are ob...

Embodiment 2

[0064] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0065] Such as figure 2 As shown, in this embodiment, the number of friction particles 7 is eighteen, ten of which are circular friction particles 701 , and the remaining eight are regular hexagonal friction particles 702 . The ten circular friction particles 701 are arranged on the outer layer and the cut-in end of the brake pad back plate 2 with relatively large relative speed and impact; the eight regular hexagonal friction particles 702 are arranged on the brake pad with relatively small speed and impact Brake pad back plate 2 inner layer and middle part. Due to the large number of passengers in the city, excessive braking noise will seriously affect the passenger experience. Therefore, high-speed trains operating in cities put forward higher requirements for vibration and noise reduction of the braking system. In addition, when the high-speed train ...

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Abstract

The invention belongs to the technical field of friction braking, and particularly relates to a high-speed train brake pad for optimizing friction particle combination and installation modes. The problems of simplex shape of friction particles, eccentric wear, high braking noise and non-uniform heat distribution on a brake interface of an existing brake pad are solved. The technical scheme is as follows: the idea of combining friction particles of different shapes and materials is put forward, and the advantages of the friction particles of various shapes and materials are comprehensively utilized by flexibly arranging the friction particles of various shapes and materials in different areas; a fixing mode of the friction particles is optimized; and an anti-rotation mode of the friction particles is optimized, and a guide shaft and a mounting hole are optimized to be cylinders with a non-circular section shape. The advantages of the friction particles of different shapes and materialsare organically combined, and the reliability, safety and comfortableness of a brake system are improved.

Description

technical field [0001] The invention belongs to the technical field of friction braking, and in particular relates to a high-speed train brake pad with optimized friction particle combination and installation method. Background technique [0002] High-speed trains usually adopt disc brakes. A brake disc is installed on the axle or on the side of the wheel web, and the two brake pads are pressed tightly against the brake disc with a brake caliper. The friction produces a braking force to stop the train. This kind of braking method can greatly reduce the thermal load and mechanical wear of the wheel tread because the active force is not on the wheel tread. In addition, the disc brake has a large friction area, stable braking and good braking effect. With the rapid development of the national economy, the operating speed of high-speed trains is increasing day by day, constantly breaking through the maximum operating speed, thus putting forward more stringent requirements for t...

Claims

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Application Information

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IPC IPC(8): F16D65/00F16D65/847F16D69/02F16D69/04
CPCF16D65/0006F16D65/847F16D69/027F16D69/0416F16D2069/004
Inventor 莫继良吴元科尹家宝王权项载毓王好平周仲荣
Owner SOUTHWEST JIAOTONG UNIV
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