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Carbon-carbon composite guide rail and preparation method thereof

A carbon composite material and guide rail technology, applied in metal material coating process, gaseous chemical plating, wheel type, etc., can solve problems such as safety and hidden dangers, eliminate rivet breakage, avoid corrosion, and improve size and distribution. Effect

Active Publication Date: 2016-02-03
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of potential safety hazards in use in the prior art, the present invention proposes a carbon-carbon composite guide rail and its preparation method

Method used

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  • Carbon-carbon composite guide rail and preparation method thereof
  • Carbon-carbon composite guide rail and preparation method thereof
  • Carbon-carbon composite guide rail and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039]This embodiment is a guide rail for an aircraft hub. The cross-section of the guide rail is U-shaped or straight-grooved V-shaped or flat-bottomed V-shaped, so that the described guide rail can cooperate with the guide rail platform of the wheel hub.

[0040] In this embodiment, the cross section of the guide rail is V-shaped. Made of carbon-carbon composite material. The inner surface 1 and the outer surface 3 on both sides of the guide rail form an angle of 90 to 105° with the bottom surface 2 of the guide rail. The angle between the bottom surfaces 2 is 95°. There are two countersunk holes 4 on the groove bottom surface 2 of the guide rail, and the holes are located on the center line in the length direction of the guide rail. The two counterbores are equidistant from both ends of the guide rail. When assembling, the inner surface 1 and the bottom surface 2 of the guide rail are matched with the hub guide rail platform, and are fastened with screws through the hol...

Embodiment 2

[0058] This embodiment is a guide rail for an aircraft hub. The cross section of the guide rail is U-shaped or straight grooved V-shaped or V.

[0059] In this embodiment, the cross section of the guide rail is U-shaped and made of carbon-carbon composite material. Two countersunk holes 4 are opened on the groove bottom surface 2 of the U-shaped guide rail, and the holes are located on the centerline in the length direction of the guide rail. The two counterbores are equidistant from both ends of the guide rail. When assembling, the inner surface 1 and the bottom surface 2 of the guide rail are matched with the hub guide rail platform, and are fastened with screws through the holes 4. The carbon-carbon composite guide rail is made of polyacrylonitrile-based carbon cloth with a density of 1.70g / cm 3 .

[0060] This embodiment also proposes a method for preparing the above-mentioned guide rail by chemical vapor deposition (CVD), and the specific steps are:

[0061] Step 1, ...

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Abstract

The invention discloses a carbon-carbon composite material guide rail for an aircraft braking wheel and a preparation method of the carbon-carbon composite material guide rail. The carbon-carbon composite material guide rail is made of a carbon-carbon composite material, and the cross section of the guide rail is U-shaped, V straight channel-shaped or V-shaped. The carbon-carbon composite material guide rail is prepared through a composite process of dipping and chemical vapor deposition, or a chemical vapor deposition method. The carbon-carbon composite material guide rail disclosed by the invention has the advantages of light weight, impossibility of softening deformation at a high temperature and the like, is used as an airplane wheel guide rail, can avoid steel guide rail corrosion, deformation, cracks and a dynamic disk clamping stagnation problem caused by guide rail deformation, and can ensure that a steel clip does not need to be arranged on a dynamic disk key groove, so that potential safety hazards of rivet fracture and steel clip falling are eliminated. The carbon-carbon composite material guide rail is used for a brake shell, and replaces a convex key on the brake shell to match with a static disk key groove, so that the problem of abnormal wear of the side surface of the static disk key groove is fundamentally solved.

Description

technical field [0001] The invention relates to the field of aircraft brake wheels, in particular to a carbon-carbon composite guide rail for aircraft brake wheels. Background technique [0002] The disc brake wheel is an integral part of the landing gear of the aircraft. It is installed on the axle at the bottom of the landing gear pillar, and is used for the take-off, landing and shortening of the landing run distance, as well as the ground taxiing and support of the aircraft. A disc brake wheel consists of a wheel and a brake device. The guide rail is the part on the wheel that bears the braking torque, one is used on the wheel hub, and the other is used on the brake housing. For carbon brakes, the current structure of the brake housing does not have a separate guide rail part, but uses convex keys processed on the steel brake housing as guide rails. The guide rail is usually a grooved piece made of alloy steel, which is fixed on the hub guide rail platform with screws ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C25/36B29C70/44C23C16/26
Inventor 何永乐
Owner XIAN AVIATION BRAKE TECH
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