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Ducted coaxial multi-rotor type aircraft

A multi-rotor aircraft and ducted technology, which is applied in the field of ducted coaxial multi-rotor aircraft, can solve the problems of inability to change the flight wheelbase of the aircraft, inability to adapt to flight requirements, and poor maneuverability, so as to achieve convenient flight attitude and good maneuverability , the effect of reducing the volume

Inactive Publication Date: 2014-10-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It adopts a combination of various rotor flight methods, which improves the flight efficiency and the flexibility, stability and reliability of the aircraft, but it cannot change the overall flight wheelbase of the aircraft during the flight process, and its maneuverability is poor, so it cannot adapt to specific occasions. flight requirements

Method used

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  • Ducted coaxial multi-rotor type aircraft
  • Ducted coaxial multi-rotor type aircraft
  • Ducted coaxial multi-rotor type aircraft

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing.

[0024] Such as figure 1 , 2 , 4, 5, 6, and 7, the body of the ducted coaxial multi-rotor aircraft of the present invention includes a central duct 10, and the central duct 10 is provided with upper and lower support frames, and the upper and lower support frames have the same structure. They are all connected by a central carbon plate 15 and four supporting carbon tubes 13. The upper and lower support frames are connected by four connecting rods 18. The connecting rods 18 are located on the outside of the upper and lower support frames. Upper propeller drive motor 16, lower propeller drive motor 17 are respectively installed on the plate 15, upper propeller 11 is installed on the last propeller drive motor 16 and is fixed by fixing ring 14; Lower propeller 12 is installed on the lower propeller drive motor 17 and is fixed by fixing ring, The upper propeller 11 and the low...

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Abstract

The invention discloses a ducted coaxial multi-rotor type aircraft and belongs to the field of special aircrafts. The multi-rotor type aircraft comprises an airframe structure, a power system and a control system. The airframe structure comprises a central duct, a main rotor and a plurality of assistant rotors evenly distributed at the peripheral of the central duct. The main rotor comprises an upper propeller and a lower propeller. The upper and lower propellers are fixed in the central duct. The centers of the upper and lower propellers are at the same vertical axis and the directions of the upper and lower propellers are opposite. A rotation device is connected to the outside of a supporting structure. The assistant rotors are connected to the rotation device through retractable rocker arms. The rotation device controls the rocker arms to drive the assistant rotors to rotate around connection points of the assistant rotors and the supporting structure. The assistant rotors can rotate and move freely, and therefore the aircraft can change the lift force distribution of the aircraft according to flight needs and a good maneuvering characteristic of the aircraft is achieved. The assistant rotors can be retracted into the inside of the central duct so as to reduce the size of the aircraft, thus facilitating flight in narrow spaces.

Description

technical field [0001] The invention relates to an aircraft, in particular to a ducted coaxial multi-rotor aircraft, which belongs to the field of special aircraft. Background technique [0002] At present, multi-rotor aircraft has good maneuverability and maneuverability, but it does not have the ability to change the wheelbase in flight, and only relies on the lift generated by the rotor to move, and the flight efficiency is low; while the maneuverability of ducted coaxial rotor aircraft Although it is not as good as a multi-rotor aircraft in handling and maneuverability, the lift generated by the duct and the rotor is far more than that produced by the multi-rotor aircraft. Therefore, combining the advantages of these two types of aircraft and combining the high lift characteristics of ducted coaxial aircraft with the control stability of multi-rotor aircraft has become the focus of current rotorcraft research. [0003] On September 25, 2013, the Chinese invention patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/08B64C27/10
Inventor 杜思亮唐正飞
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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