Dual-brake system for single-wheel brake of aircraft

A double brake, aircraft technology, applied in the direction of aircraft brake arrangement, control mechanism, vehicle components, etc., can solve the problem of not being able to choose the braking method

Inactive Publication Date: 2016-11-16
XIAN AVIATION BRAKE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that the braking mode cannot be selected in the pri

Method used

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  • Dual-brake system for single-wheel brake of aircraft

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Embodiment Construction

[0022] The present embodiment is a kind of double brake system that is used for aircraft single wheel brake.

[0023] See attached figure 1 . Described braking system is conventional hydraulic control. The main landing gear is equipped with a brake wheel with two brake devices, which are called single-wheel double-brake wheels. The brake discs of the brakes are made entirely of carbon-carbon composite friction material.

[0024] One of the two braking devices has fewer brake discs, and is a single-disc or double-disc brake device, which makes the axial size of the heat store small, so it is called a small brake device; the other brake device has a brake disc The number is large, and it is a multi-disc brake device, which makes the axial size of the heat storage large, so it is called a large brake device. Both the small braking device and the large braking device are disclosed in the invention creation with application number 201610281025.2:

[0025] The thermal reservoir...

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Abstract

The invention relates to a dual-brake system for a single-wheel brake of an aircraft. A brake antiskid control part is formed by an aircraft wheel speed sensor, a control box and an electro-hydraulic servo valve; and the aircraft wheel speed sensor, the control box and an electromagnetic valve are used for realizing braking selection of a braking aircraft wheel through adopting an aircraft braking speed control method. According to the dual-brake system disclosed by the invention, a hydraulic pipeline through which a brake system is outputted to an aircraft wheel brake device is divided into a small brake device hydraulic pipeline and a large brake device hydraulic pipeline, the small brake device hydraulic pipeline is kept unblocked, and the on-off of the large brake device hydraulic pipeline is controlled by a control device, so that the function that when the airplane slides on the ground, only the small brake device runs, and in other situations, all the brake devices run is realized, and therefore the purposes that during sliding braking, the wear of a carbon disk is reduced, and the service life of the carbon disk is prolonged are achieved. According to the dual-brake system disclosed by the invention, 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 braking system, in particular to an aircraft single-wheel double-braking brake control system with taxiing brake selection based on braking speed. 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 ...

Claims

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Application Information

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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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