A linear-driven double-rotation wing folding mechanism capable of large-angle folding

Abstract

The invention discloses a wing folding mechanism that can be folded at a large angle with double rotation driven by a straight line, comprising a connecting shaft, an inner and outer wing connecting joint installed on the connecting shaft, and a telescopic folding mechanism connected with the connecting shaft; the telescopic folding mechanism includes Two telescopic folding devices with the same structure and hinged with the connecting shaft; one end of the telescopic folding device away from the connecting shaft is hinged to the outer wing, and the other end of the telescopic folding device away from the connecting shaft is hinged to the inner wing. The connecting joints of the inner and outer wings are respectively hinged with the inner wing lugs on the inner wing and the outer wing lugs on the outer wing; a gap for installing the connecting shaft and the telescopic folding mechanism is formed between the inner wing lugs and the outer wing lugs. Chamber. The beneficial effects of the present invention are: the mechanism of the present invention can ensure the aerodynamic shape of the wing itself without affecting the flight performance of the aircraft, and the folding angle is large, the height after folding is low, and the occupied space is small; the present invention is operable, simple in principle, and applicable Wide range of features, short design cycle and low difficulty.

Description

technical field [0001] The invention relates to the technical field of aircraft structure folding mechanisms, in particular to a wing folding mechanism with linear drive, double rotation and large-angle folding. Background technique [0002] At present, in the field of folding-wing variant aircraft, there are almost no mature cases in China. Only a certain carrier-based aircraft uses wing folding technology. Aerodynamic performance, and the folding angle is limited, about 120°. [0003] There are two more mature methods in foreign countries: electric rotation and hydraulic linear drive. The power of the first electric rotation scheme is low, and the driving force for larger and heavier wings is not enough, and whether it is an S-3 or A-6 aircraft, its folding mechanism protrudes from the shape and structure, which reduces the aerodynamic performance of the aircraft; the second This kind of hydraulic linear drive scheme has high power, simple structure, and large driving fo...

AI Technical Summary

Problems solved by technology

The first type of electric rotation scheme has low power and insufficient driving force for larger and heavier wings, and whether it is an S-3 or A-6 aircraft, its folding mechanism protrudes from the shape and structure, which reduces the aerodynamic performance of the aircraft; the second A hydraulic linear drive scheme, with high power, simple structure, and large driving force, but there are also problems in the design of the mechanism that highlight the structural shape, such as EA-6B, and due to the interference of the structure itself, most folding schemes are difficult to break through the 120° limit

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