Variable-distance multi-rotor drone based on duct

Abstract

The invention provides a variable-distance multi-rotor drone based on a duct. The variable-distance multi-rotor drone comprises a shell and a rack, the surface of the rack is of a rectangular structure, a flight control computer is arranged in the center of the rack, oil tanks, aeroengines and conveying devices are distributed at the two sides of the flight control computer along the rack in sequence, and a pair of rotors are connected to each conveying device separately; the middle of the shell is a load area, 8-shaped ducts are formed in the two ends of the shell respectively, the four rotors are arranged in pairs in the ducts at the two ends of the shell, the two rotors in the same end are partially crossed, the conveying devices guarantee that the rotation speed of the drone is kept uniform all the time, and therefore the rotors cannot collide with one another. The variable-distance multi-rotor drone can avoid the adverse effect of wash below the rotors, can improve the rotor efficiency by a large margin, increase the whole drone effective load and improve the safety at the same time.

Description

technical field [0001] The invention relates to the field of multi-rotor UAVs, in particular to a duct-based variable-distance multi-rotor UAV. Background technique [0002] A multi-rotor drone is a special unmanned aerial vehicle with three or more rotors. In the existing multi-rotor UAV, the motor on each shaft rotates to drive the rotor, thereby generating thrust. By changing the relative speed between different rotors, the size of the single-axis propulsion can be changed, so as to control the flight. There are the following disadvantages: 1) Restricted by the motor, it is difficult to develop large-scale, low payload, and short endurance; 2) The classic square rotor layout results in payloads that can only be distributed under the rotor, and the high-speed downwash of the rotor will be unfavorable Influence; 3) The rotor rotates at high speed, which has potential safety hazards, and at the same time, the maneuverability is insufficient to control it by changing the sp...

AI Technical Summary

Problems solved by technology

There are the following disadvantages: 1) Restricted by the motor, it is difficult to develop large-scale, low payload, and short endurance; 2) The classic square rotor layout results in payloads that can only be distributed under the rotor, and the high-speed downwash of the rotor will be unfavorable Influence; 3) The rotor rotates at high speed, which has potential safety hazards, and at the same time, the maneuverability is insufficient to control it by changing the speed

With the development needs of various industries, the demand for drones has been greatly improved. Traditional electric quadrotor drones can no longer meet market demand, especially in special industries such as short-distance air transportation and fire rescue, which require a large Heavy-duty and safe and reliable drone

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