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A vertical take-off and landing compound layout unmanned aerial vehicle rotor retractable device

A technology of vertical take-off and landing and aircraft rotor, which is applied in the direction of vertical take-off and landing aircraft, rotorcraft, and unmanned aircraft.

Active Publication Date: 2018-11-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this vertical take-off and landing compound layout UAV does not take into account that when the UAV is flying in the air in the form of a fixed wing, the rotor arm and rotor protruding from the outside of the aircraft will greatly affect the aerodynamic characteristics of the UAV. Not good for drones flying in the air

Method used

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  • A vertical take-off and landing compound layout unmanned aerial vehicle rotor retractable device
  • A vertical take-off and landing compound layout unmanned aerial vehicle rotor retractable device
  • A vertical take-off and landing compound layout unmanned aerial vehicle rotor retractable device

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Embodiment Construction

[0026] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0027] The components of conventional fixed-wing UAVs include fuselage, wings, ailerons, thrust engines, and empennages. The flight control system, power plant, and mission equipment are installed inside the fuselage. The flight of the drone is controlled, and the power unit provides power for the flight of the entire drone, including rotor rotation, rotor arm retraction, etc.

[0028] The invention is a vertical take-off and landing compound layout unmanned aerial vehicle rotor retractable device, such as figure 1 , figure 2 , image 3 , Figure 4 As shown, in addition to the components of the conventional fixed-wing UAV, it also includes: rotor 3, long rotor arm 1, short rotor arm 4, DC brushless motor 2 and rotor arm rotation shaft 9;

[0029] There are four rotor compartments 10 on the side of the fuselage, wherein two rotor compartments 10 a...

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Abstract

The invention discloses a vertical take-off and landing compound layout UAV rotor retractable device, in addition to the components of the conventional fixed-wing UAV, it also includes rotors, rotor arms, connecting rods, linear motors, guide rods, baffles and spring. One end of the rotor arm is installed on the rotating shaft in the rotor cabin on the side of the fuselage, and the other end of the rotor arm is installed with a DC brushless motor and rotor; The linear motor pulls the guide rod and the connecting rod to move, so that the rotor arm rotates and retracts into the rotor cabin, and the baffle is closed; when the composite UAV needs to use the rotor, the linear motor is controlled to rotate the rotor arm to extend out of the fuselage. In addition to the conventional fixed-wing function, the UAV of the present invention also has functions such as vertical take-off and landing, longitudinal and lateral maneuvering; in the fixed-wing mode, the rotor is retracted in the rotor cabin, and the baffle is closed, avoiding the rotor structure. The resulting aerodynamic effects.

Description

technical field [0001] The invention relates to a vertical take-off and landing composite layout (fixed wing + multi-rotor) unmanned aerial vehicle, in particular to a rotor retractable device of the unmanned aerial vehicle. Background technique [0002] Conventional fixed-wing UAVs need a run-up to take off, airdrop or orbital ejection to take off, and must taxi or land by parachute or hit the net when landing. For taxi take-off and landing, a larger space is required for flight, while for airdrop, Orbital catapult takeoff, parachute landing, and net landing have their own inconveniences, but conventional fixed-wing UAVs have the advantages of long battery life, high flight efficiency, and large payload. The multi-rotor UAV has the characteristics of simple mechanical structure and vertical take-off and landing, but the endurance time is short and the load is small. [0003] Therefore, many researchers have developed a variety of fixed-wing UAVs that can take off and land ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C1/30B64C29/00B64C27/26
CPCB64C1/30B64C27/26B64C29/0025B64U10/25B64U10/10B64U50/19B64U30/10B64U30/20
Inventor 王松卜亮亮陈万里董方晨
Owner BEIHANG UNIV
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