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Direct-acting dual flapping-wing UAV with rotatable blades

A direct-acting, unmanned aerial vehicle technology, applied in the direction of helicopters, unmanned aircraft, fuselage, etc., can solve the problem that vertical take-off and landing and hovering in the air cannot be realized, restricting the popularization and application of flapping-wing aircraft, and flapping-wing aircraft Low overall efficiency and other issues, to achieve the effect of simple structure, low production cost and good mobility

Active Publication Date: 2020-12-08
GLOBAL INST OF SOFTWARE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason for the overall low efficiency of flapping wing aircraft is that most of the current research simply imitates the shape and flapping motion of the wings of birds or insects, but it is difficult to realize the use of the wing's own posture and structure in the process of flapping wings of flying creatures. The change of air resistance reduces air resistance and generates unsteady aerodynamic force, and the resulting low aerodynamic efficiency seriously restricts the popularization and application of flapping-wing aircraft
At the same time, most of the current fluttering flying chess cannot realize vertical take-off and landing and hovering in the air.

Method used

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  • Direct-acting dual flapping-wing UAV with rotatable blades
  • Direct-acting dual flapping-wing UAV with rotatable blades
  • Direct-acting dual flapping-wing UAV with rotatable blades

Examples

Experimental program
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Effect test

Embodiment 2

[0036] This embodiment 2 provides a special drone for high-rise fire extinguishing, its structure is the same as that of embodiment 1, the difference is: the number of blades 2 in each flapping wing frame 1 is 6, the blade limit beam 102, the strengthening vertical beam 104 , Strengthening beam 105 and strengthening inclined beam 106 all adopt engineering plastics. It is a high-level fire-fighting special drone equipped with a direct-acting double flapping wing drone equipped with rotatable blades. Such as figure 1 , figure 2 and image 3 As shown, the direct-acting double flapping-wing unmanned aerial vehicle equipped with rotatable blades includes flapping-wing frame 1, blade 2, torsion spring 3, slideway 4, connector 5, first reducer 6, stepper motor 7, Connecting rod 8, crank 9, transmission shaft 10, second speed reducer 11, motor 12, first bearing pin 13, second bearing pin 14 and fuselage frame 15, blade installation hole 101, blade limiter are arranged on flapping ...

Embodiment 3

[0038] This embodiment 3 provides an agricultural plant protection drone, its structure is the same as that of embodiment 1, the difference is: the number of blades 2 in each flapping wing frame 1 is 8, the blade limit beam 102, the strengthening vertical beam 104, Both the reinforcing beam 105 and the reinforcing inclined beam 106 are made of engineering plastics. An agricultural plant protection UAV using a direct-acting double flapping-wing UAV equipped with rotatable blades, including a flapping-wing frame 1, blades 2, torsion spring 3, slideway 4, connecting piece 5, first reducer 6, Stepper motor 7, connecting rod 8, crank 9, power transmission shaft 10, second reducer 11, motor 12, first pin 13, second pin 14 and fuselage frame 15, blade is installed on flapping wing frame 1 Holes 101, blade limit beams 102 and flapping wing shafts 103. Such as Figure 7 As shown, the blade 2 has a blade windward surface 201 , a blade rotating shaft 202 and a blade leeward surface 203...

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Abstract

The invention discloses a field of flapping-wing aircraft and flying robots, in particular to a straight-moving double flapping-wing unmanned aerial vehicle equipped with rotatable blades. It includes flapping wings, slideways, connectors, first reducer, stepping motor, transmission mechanism, second reducer, electric motor and fuselage frame, and two vertical sliding slides are installed and fixed symmetrically on both sides of the fuselage frame. The two connecting parts are respectively slidably connected to the two slideways, and the two flapping wings are respectively connected to the two connecting parts and can rotate relative to each other. The flapping wing includes a flapping wing frame, and a rotatable The flapping wing frame is also equipped with a torsion spring for the reset of the blade. The two sets of transmission mechanisms are respectively hinged on the two connecting parts. The two motors set on the fuselage frame drive the two sets of The movement of the transmission mechanism makes the two connecting parts slide respectively, and the two stepping motors arranged on the two connecting parts drive the two flapping wings to rotate after being decelerated by the first reducer.

Description

technical field [0001] The invention relates to the field of flapping-wing aircraft and flying robots, in particular to a straight-moving double flapping-wing unmanned aerial vehicle equipped with rotatable blades. Background technique [0002] There are three flight types of aircraft flying: fixed wing, rotary wing and flapping wing. Among them, flapping wing flight is the flying mode adopted by flying creatures in nature. It mainly uses the up and down flapping of the wings to generate lift and thrust at the same time. , hovering and propulsion functions are based on one body, and at the same time have strong maneuverability and flexibility, and are more suitable for flying around obstacles. For small-sized and low-speed aircraft flying under low Reynolds numbers, the unsteady lift generated by the flapping wing is much greater than the constant lift of the fixed wing; from the perspective of thrust, the propulsion efficiency of the flapping wing is higher than that of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C33/00B64C33/02B64C3/18B64C3/38B64C1/00
CPCB64C33/00B64C33/02B64C3/18B64C3/385B64C1/0009B64U2101/00
Inventor 邱明胡幼谦顾颖华费金陵赵雪庄旭廖振强
Owner GLOBAL INST OF SOFTWARE TECH