Composite wing integral oil tank and manufacturing method thereof

Abstract

The invention relates to a composite wing integral oil tank. The composite wing integral oil tank comprises upper coverings 1, lower coverings 2, crossbeams and wing ribs 5, wherein each of the crossbeams is arranged between the corresponding upper covering 1 and the corresponding lower covering 2, the crossbeams are a front crossbeam 3 and a rear crossbeam 4, and each of the front crossbeams 3 and the corresponding rear crossbeam 4 are arranged in the spanwise direction; the wing ribs 5 are arranged between the corresponding front crossbeam 3 and the corresponding rear crossbeam 4 in the navigation direction; a front edge oil tank access cover 9 is arranged between each wing oil tank front wall 10 and the corresponding front crossbeam 3; a wing oil tank box section is formed between the corresponding front crossbeam and the corresponding rear crossbeam; each oil tank access cover 7 and a corresponding maintenance access cover are arranged on one side close to the corresponding lower covering 2, of the corresponding box section; and each of the oil tank access covers 7 is connected with the corresponding lower covering 2 through a corresponding sealing support plate nut 21, and a fuel oil sealing ring 31 is arranged between each of the oil tank access covers 7 and the corresponding lower covering 2. According to the composite wing integral oil tank disclosed by the invention, the manufacturing cost of composite airplanes is greatly reduced, the structural utilization efficiency is improved, the assembling tooling is saved, the assembling time is shortened, the workload is reduced, and the large-scale production of full-composite wing integral oil tanks is realized.

Description

technical field [0001] The invention relates to an integral fuel tank of an aircraft wing, in particular to an integral fuel tank of a composite material wing and a processing method thereof. Background technique [0002] Traditional aircraft wing fuel tanks are generally manufactured by aluminum alloy processing or expensive composite material autoclave forming process, so a large number of fasteners and holes are inevitably used in the wing fuel tank. Especially for composite materials, a large number of fasteners and holes mean the consumption of a large number of special tools and man-hours, and bring about the destruction of fiber continuity and a higher possibility of damage, reducing the utilization efficiency of wing fuel tanks Increased cost, and produce huge workload. Contents of the invention [0003] Aiming at the defects and deficiencies of traditional aircraft wing fuel tanks, what the present invention provides is a composite material wing integral fuel tan...

AI Technical Summary

Problems solved by technology

Especially for composite materials, a large number of fasteners and holes mean the consumption of a large number of special tools and man-hours, and bring about the destruction of fiber continuity and a higher possibility of damage, reducing the utilization efficiency of wing fuel tanks Increased cost and huge workload

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