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Brake disc deicing method and device

A brake disc and brake mechanism technology, applied in the field of rail vehicles, can solve problems affecting the safe operation of rail vehicles, the friction coefficient of brake discs decreases, and the braking effect decreases, so as to achieve good braking effects and ensure safe operation. Effect

Active Publication Date: 2019-12-06
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thin ice attached to the surface of the brake disc will cause the friction coefficient of the brake disc to drop sharply, and the braking effect will be significantly reduced, thereby prolonging the braking distance of the rail vehicle and affecting the safe operation of the rail vehicle

Method used

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  • Brake disc deicing method and device
  • Brake disc deicing method and device
  • Brake disc deicing method and device

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In the severe cold climate in winter, a layer of thin ice is sometimes formed on the surface of the brake disc. The attached thin ice will cause the friction coefficient of the brake disc to drop sharply, and the braking effect will be significantly reduced, which will affect driving safety. The inventors have found that when the rail ...

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Abstract

The invention provides a brake disc deicing method and device applied to the technical field of railway vehicles. According to the method, whether a railway vehicle enters preset high-temperature environment on the preset low-temperature vehicle condition or not within first time duration is judged, moreover, braking is not carried out within the first duration for entering the preset high-temperature environment on the preset low-temperature vehicle condition, it can be judged that a brake disc is iced, then a braking mechanism can be controlled to carry out braking with preset braking pressure, on the premise of not influencing traveling of the vehicle, friction heating is utilized for removing ice on the surface of the brake disc, thus it is ensured that when a driver reduces speed actually or parks the vehicle, the brake disc has a good braking effect, and safety operation of the railway vehicle is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of rail vehicles, and in particular relates to a brake disc deicing method and device. Background technique [0002] Disc brake is a way of friction braking of rail vehicles, which is widely used in the braking system of rail vehicles. The brake disc is the key component in the disc brake, usually installed on the axle of the wheel set or the inner and outer sides of the wheel. When braking, the brake pads are pressed against the brake disc, and the kinetic energy of the rail vehicle is converted into heat energy through the friction between the brake pads and the brake disc to be consumed, thereby achieving the purpose of braking or deceleration. [0003] In extremely cold weather, a thin layer of ice sometimes forms on the surface of the brake disc. The thin ice attached to the surface of the brake disc will cause the friction coefficient of the brake disc to drop sharply, and the braking effect will be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22B61H5/00F16D66/00F16D65/00
CPCB60T17/228B61H5/00F16D65/00F16D66/00F16D2066/001
Inventor 赵杨坤赵恩东王志龙张笑帆肖宇
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD