A tilting four-rotor long-endurance composite aircraft

Abstract

The invention discloses a tilting four-rotor long-endurance composite aircraft, which is divided into a four-rotor system, a tilting mechanism and an aircraft main body. The four-rotor power system is four propellers driven by propeller engines; the tilting mechanism is installed in the middle of the fuselage through the tilting shaft; there are four engine support mechanisms distributed along the circumferential direction, and each engine support mechanism end One of the above-mentioned propeller engines is installed at the bottom; when the tilting axis is perpendicular to the horizontal plane, there are two propeller engines in front and rear of the wing respectively, and they are respectively located on the left and right sides of the fuselage, symmetrical to each other; they are also located on the left and right sides of the fuselage The two propeller engines are symmetrical. When taking off vertically, the quadrotor power system mainly provides lift in the vertical direction; after takeoff, the tilting mechanism realizes the overall tilting of the quadrotor and locks it to enter the level flight mode. The invention has the advantages that the safety and reliability of the aircraft are high, and the propeller in the four-rotor power system is not blocked by the wings, and the efficiency is high and the efficiency of the wings is improved.

Description

technical field [0001] The invention belongs to the field of aircraft design, and relates to a layout form of a novel vertical take-off and landing aircraft, in particular to an aircraft layout which utilizes the integral tilting of four rotors to realize vertical take-off and landing and then converts to a level flight state. Background technique [0002] my country has vast maritime regulatory waters. The area of ​​some waters in the South China Sea alone is 3.56 million square kilometers. The southernmost Zengmu Shoal is 2,000 kilometers away from the mainland. At present, my country's maritime sector is mainly equipped with small and medium-sized ships, which can only take off and land carrier-based helicopters or small fixed-wing aircraft due to ship conditions. Shipborne helicopters are slow and have a short flight time, while small fixed-wing aircraft have single functions, short flight time and difficult recovery. When an emergency occurs, it is difficult for existin...

AI Technical Summary

Problems solved by technology

However, the tilt mechanism of the V-22 "Osprey" aircraft is relatively complex, technically difficult and costly

In addition, the two engines of the V-22 "Osprey" aircraft are arranged on the outer section of the wing, which requires high structural strength and heavy weight. The rotor is also blocked by the wing, and the efficiency is affected to a certain extent.

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