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Interface-fusing, load-optimizing and fault-monitoring high speed train braking system

A technology for fault monitoring and high-speed trains, applied in railway braking systems, braking safety systems, brake types, etc. Train operating efficiency and economic benefits and other issues to achieve the effect of improving braking reliability and safety, ensuring braking reliability and safety, and improving interface heat distribution

Active Publication Date: 2020-06-23
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is almost no intelligent monitoring system in the existing braking system, which cannot monitor various status parameters of the braking system in real time, and cannot quickly diagnose and predict possible braking failures
[0008] The above discussion shows the problems existing in the current braking system. These problems will cause severe noise pollution during the braking process of the train, 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, reduce train operating efficiency and economic benefits

Method used

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  • Interface-fusing, load-optimizing and fault-monitoring high speed train braking system
  • Interface-fusing, load-optimizing and fault-monitoring high speed train braking system
  • Interface-fusing, load-optimizing and fault-monitoring high speed train braking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A high-speed train braking system that integrates interface and loading optimization and fault monitoring, including 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 adopt several kinds of surfaces grooming. The several surface modifications described above include opening holes, chamfering or ditching on the surface of the friction particles 7 . In this embodiment, friction particles 7 with two surface modifications, chamfered and open, are used. 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.

[0056] Such as ...

Embodiment 2

[0065] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0066] Such as Figure 4 As shown, in the present embodiment, the number of friction particles 7 is ten, and four of them are porous friction particles 701. Non-porous friction particles 702, the shape of the non-porous friction particles 702 is triangular and only the surface is modified by chamfering. The four porous friction particles 701 are located at the cutting end of the brake pad back plate 2 (ie, the end facing the cutting direction), and the six non-porous friction particles 702 are located at the middle of the brake pad back plate 2 .

[0067] The intelligent monitoring system added to the brake system can also collect the temperature rise change signal of the contact interface between the friction particles 7 and the brake disc 1 . A temperature sensor is arranged on the brake pad back plate 2, and is used to collect the temperature rise chan...

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Abstract

The invention belongs to the technical field of friction braking, and in particular relates to an interface-fusing, load-optimizing and fault-monitoring high speed train braking system. The system improves the condition that in the prior art, surface modification of friction particles on a brake pad in a braking system is single, stress concentration exists in the braking process and heat distribution of a braking interface is not uniform, and a troubleshooting function is added for the braking system. The technical scheme of the invention is as follows: a concept of combining different surface modifications for the friction particles is provided, thereby comprehensively utilizing advantages of various surface modifications; the mounting direction of the friction particles is optimized; aloading device is optimized; and an intelligent monitoring system is added for the braking system for fault online monitoring. By combining the advantages of the friction particles in different surface modification combinations organically, the braking reliability, safety and comfort of a high speed train are achieved. By monitoring parameters of the braking system in real time, health degree andproblems of the braking system are pre-judged.

Description

technical field [0001] The invention belongs to the technical field of friction braking, and in particular relates to a high-speed train braking system for fusion interface and loading optimization and fault monitoring. Background technique [0002] High-speed trains usually use a disc brake system. The brake disc is installed on the axle or on the side of the wheel web, and the two brake pads made of synthetic materials are pressed against the side of the brake disc with a brake caliper. A braking force is generated to stop the train from moving forward. 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,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/00F16D69/04F16D66/00B61H5/00B60T17/22
CPCB60T17/22B61H5/00F16D66/00F16D69/00F16D69/0408F16D2066/001F16D2066/003F16D2066/005F16D2069/0433
Inventor 莫继良尹家宝吴元科王好平王权项载毓周仲荣
Owner SOUTHWEST JIAOTONG UNIV
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