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Single-wheel dual-brake electronic transmission brake system of aircraft, capable of choosing braking manner

A brake system and double brake technology, which is applied in the direction of aircraft brake arrangements, control mechanisms, vehicle components, etc., can solve the problems of not being able to choose the brake mode, etc., to improve the service life and economic benefits, solve the problem of large wear, and improve the load level Effect

Inactive Publication Date: 2016-11-16
XIAN AVIATION BRAKE TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that the braking mode cannot be selected in the prior art, the present invention proposes a fly-by-wire braking system capable of selecting the braking mode of the aircraft with single wheel and double brakes

Method used

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  • Single-wheel dual-brake electronic transmission brake system of aircraft, capable of choosing braking manner

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Embodiment Construction

[0026] See attached figure 1 . The main landing gear of aircraft is equipped with a brake wheel, has two brake devices, is the double brake wheel of single wheel. The brake discs of the brakes are made entirely of carbon-carbon composite friction material.

[0027] The two braking devices are respectively a small braking device and a large braking device. The small number of brake discs of the small brake device makes the axial size of the heat store small, so it is called a small brake device; the number of brake discs of the large brake device is large, so that the axial size of the heat store is large, so it is called a small brake device. Big brakes. Both the small braking device and the large braking device are disclosed in the invention creation with application number 201610281025.2:

[0028]The thermal reservoir of the small brake device is composed of a compression disc, a pressure bearing disc and a moving disc, the number of which is 1 to 2 discs, and is a singl...

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Abstract

The invention relates to a single-wheel dual-brake electronic transmission brake system of an aircraft, capable of choosing a braking manner. A brake antiskid control system is formed by an aircraft wheel speed sensor, a control box and an electro-hydraulic servo valve; a brake control system is formed by a braking instruction sensor, the control box and the electro-hydraulic servo valve. The electro-hydraulic servo valve responds to an electric current control signal of the control box to output and adjust the braking pressure outputted to a braking aircraft wheel; braking selection is realized through a hydraulic control valve; a hydraulic braking valve is replaced with the braking instruction sensor; and the electro-hydraulic servo valve is a positive gain valve. The single-wheel dual-brake electronic transmission brake system disclosed by the invention is suitable for a single-wheel dual-brake aircraft wheel using a carbon brake; the requirements for selective brake use of the single-wheel dual-brake aircraft wheel can be met, and the using conditions of a carbon disk is adjusted, so that the good characteristics of wear resistance of a carbon-carbon composite friction material can be fully exerted, the difficult problems that a conventional single-wheel single-brake carbon brake disk is high in wear and short in service life are effectively solved, the service life of the carbon disk is prolonged, and the economic benefits of the carbon disk are improved.

Description

technical field [0001] The invention relates to an aircraft wheel brake system, in particular to a brake control system with single-wheel double brakes and taxi brake selection based on brake pressure. Background technique [0002] Compared with steel brakes, aircraft carbon brakes have the advantages of light weight, wear resistance, high specific heat, and non-bonding at high temperatures because the brake discs are completely made of carbon-carbon composite friction materials, which significantly improves the technical performance and reliability of aircraft use. Safety, maintenance and economy, so it is widely used in modern aircraft. Carbon brakes are especially suitable for high-energy braking situations, and their excellent friction and wear characteristics endow carbon brake discs with durable qualities. However, after the carbon brake was put into field operation, it was found that the service life of the carbon brake disc could not reach the given life value of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/44B64C25/42B64C25/46B60T8/17B60T8/32B60T13/68
CPCB60T8/1703B60T8/325B60T13/686B64C25/42B64C25/44B64C25/46
Inventor 何永乐王红玲
Owner XIAN AVIATION BRAKE TECH
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