Bionic flapping wing aircraft

Abstract

The invention discloses a bionic flapping-wing aircraft, belongs to the technical field of aircrafts, and particularly relates to the design of bionic flapping-wing aircrafts with dragonfly biological structural characteristics. The device is composed of a front flapping wing device, a middle connecting device, a counterweight battery, a rear flapping wing device, a material box and a visual device. Wherein the front and rear flapping wing devices have the same structure and are symmetrically arranged at the front and rear ends of the equipment. The middle connecting device is positioned in the middle of the equipment; the material box is located under the middle connecting device. The front flapping wing device is positioned in front of the middle connecting device; the rear flapping wing device is positioned behind the middle connecting device; the visual device is located at the foremost part of the equipment; the counterweight battery device is positioned on the rearmost side; through the bionic wing vein topological structure and four-wing linkage control, the bionic effect is achieved, and the robot is suitable for the scenes of material delivery, disaster rescue, narrow space inspection and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft, and particularly relates to a bionic flapping-wing aircraft based on the biological structural characteristics of dragonflies. Background Art

[0002] As a bionic mechanical device that mimics the flight of natural organisms, flapping-wing aircraft have shown unique advantages in recent years in fields such as micro unmanned aerial vehicles and reconnaissance detection. Compared with fixed-wing and rotary-wing aircraft, flapping-wing aircraft generate lift and thrust through the periodic flapping that simulates birds or insects, and have characteristics such as high aerodynamic efficiency at low Reynolds numbers, high maneuverability, and strong concealment. However, existing flapping-wing aircraft still have problems such as insufficient aerodynamic efficiency, complex motion control, and limited structural load capacity, which seriously restrict their practical applications.

[0003] As an insect with excellent flight ability in nature, the four-wing asynchronous motion mechanism and unique wing vein topological structure of dragonflies provide important inspiration for bionic design. The wings of dragonflies can achieve multi-degree-of-freedom motions such as pitching and rolling through the phase difference adjustment between the front and rear wings. However, the bionic reproduction of the biological characteristics of dragonflies in the existing technology is still insufficient. Therefore, it is urgent to transform the biological characteristics advantages of dragonflies into engineering solutions. Summary of the Invention

[0004] The purpose of the present invention is to propose a bionic flapping-wing aircraft with high aerodynamic efficiency, flexible motion control, and strong structural load capacity based on the biological kinematic characteristics and morphological advantages of dragonflies in view of the technical bottlenecks of existing flapping-wing aircraft. By bionically imitating the structural characteristics of dragonflies, efficient and stable flight of the aircraft is achieved.

[0005] The present invention is realized through the following technical solutions: A bionic flapping-wing aircraft, which relates to the field of bionic aircraft. The device includes a front flapping-wing device, an intermediate connecting device, a weight battery, a rear flapping-wing device, a supply box, and a vision device; the intermediate connecting device is located in the middle of the equipment; the supply box is located directly below the intermediate connecting device; the front flapping-wing device is located in front of the intermediate connecting device; the rear flapping-wing device is located behind the intermediate connecting device; the vision device is located at the very front of the equipment; the weight battery device is located at the very rear; The front flapping wing device includes a power device, a gear member 1, a frame, a connecting rod, a slider, a rotating rod, a rotating member, a sliding device, and a wing device; the power device is located below the frame, the gear member 1 is installed at the middle position of the frame and connected to the gear of the power device, the connecting rod is located on the other side of the frame and connected to the gear member 1, the slider is located above the frame and connected to the frame and the connecting rod, the rotating rod is located on both sides of the slider, and its rotating section is connected to the slider, the rotating member is located on the edges of both sides of the upper part of the frame, the rotating end is connected to the frame, and the sliding section is connected to the rotating rod, the sliding devices are respectively located on the front and rear surfaces of the housing and are symmetrically distributed, and the wing devices are installed on both sides, the rotating end is connected to the sliding device, and the sliding end is connected to the rotating member; The power device includes a motor frame, a motor, and a gear 2; the motor is located on the motor frame, the gear is located on the motor, and the wing device includes a wing root and a wing, and the connection part is a motor structure and can rotate; The front and rear flapping wing devices have the same structure and are symmetrically arranged at the front and rear ends of the device.

[0006] The advantages and effects of the present invention are as follows: Through the bionic dragonfly four-wing asynchronous control technology, the present invention uses a gear-link-slider compound transmission mechanism to reproduce the flapping trajectory; the front and rear symmetric flapping wing devices support independent adjustment of the phase difference, realizing multi-degree-of-freedom maneuvering control such as pitching and rolling. Good bionic and bionic practical application effects are achieved. Description of the Drawings

[0007] Figure 1 It is a schematic diagram of the overall structure of the bionic flapping wing aircraft of the present invention; Figure 2 It is a front view schematic diagram of the front flapping wing device of the bionic flapping wing aircraft; Figure 3 It is a rear cross-sectional view of the front flapping wing device of the bionic flapping wing aircraft; Figure 4 It is a rear view schematic diagram of the front flapping wing device of the bionic flapping wing aircraft; Figure 5 It is a schematic diagram of the power device of the bionic flapping wing aircraft; In the figure: 1 - front flapping wing mechanism; 2 - intermediate connection device; 3 - weight battery; 4 - rear flapping wing device; 5 - supply box; 6 - vision device; 11 - power device; 12 - gear member; 13 - frame; 14 - connecting rod; 15 - slider; 16 - rotating rod; 17 - rotating member; 18 - sliding device; 19 - wing device; 111 - motor frame; 112 - motor; 113 - gear; 191 - wing root; 192 - wing. Detailed Implementation Modes

[0008] The present invention will be further described in detail with reference to the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, providing specific implementation manners and operation steps, but the protection scope of the present invention is not limited to the following embodiments.

[0009] Referring to Figure 1 , the bionic flapping-wing aircraft is composed of a front flapping-wing device 1, an intermediate connecting device 2, a weight battery 3, a rear flapping-wing device 4, a material box 5 and a vision device 6. The intermediate connecting device 2 is located in the middle of the device; the material box 5 is located directly below the intermediate connecting device; the front flapping-wing device 1 is located in front of the intermediate connecting device 2; the rear flapping-wing device 4 is located behind the intermediate connecting device 2; the vision device 6 is located at the very front of the device; the weight battery device 3 is located at the very rear; Referring to Figures 2 - 5 , the front flapping-wing device includes a power device 11, a gear member 112, a frame 13, a connecting rod 14, a slider 15, a rotating rod 16, a rotating member 17, a sliding device 18, and a wing device 19; the power device 11 is located below the frame 13, the gear member 112 is installed at the middle position of the frame 13 and connected to the gear of the power device 11, the connecting rod 14 is located on the other side of the frame 13 and connected to the gear member 112, the slider 15 is located above the frame 13 and connected to the frame 13 and the connecting rod 14, the rotating rod 16 is located on both sides of the slider 15, and its rotating end is connected to the slider 15, the rotating member 17 is located on the edges of both sides of the upper part of the frame, the rotating end is connected to the frame 13, and the sliding end is connected to the rotating rod 16, the sliding devices 18 are respectively located on the front and rear sides of the frame 13, symmetrically distributed, and the wing devices 19 are installed on both sides, the rotating end is connected to the sliding device 18, and the sliding end is connected to the rotating member 16; The power device 11 includes a motor frame 111, a motor 112, and a gear 2 113; the motor 112 is located on the motor frame 111, the gear 2 113 is located on the motor 112, and the wing device 19 includes a wing root 191 and a wing 192, and the connection part is a motor structure and can rotate.

[0010] The front flapping-wing device 1 and the rear flapping-wing device 4 have the same structure and are symmetrically arranged at the front and rear ends of the device.

[0011] When the device is working, the control system in the intermediate connection device 2 controls the motor 112 in the power device 11 in the front flapping wing device 1 to rotate. The motor 122 drives the gear 2 113 to rotate, and the gear 2 113 drives the meshing gear 1 112 to rotate. The gear 1 112 drives the connecting rod 14 and the slider 15 to perform a crank-slider motion. The slider 15 drives the rotatably connected rotating rod 16, and the motion of the rotating rod 16 causes the rotating member 17 to rotate. The motion mode between the rotating rod 16 and the rotating member 17 is sliding, and the rotating member 17 drives the wing device 19 to rotate. The sliding device 18 is connected to the wing device 19, and the motion of the sliding device 18 will change the vibration amplitude of the wings. The wing root 191 and the wing 192 can rotate. At the same time, the rear flapping wing device also adopts such a principle. In this way, the front and rear wings flap synchronously or asynchronously to achieve flight. The functions of turning, hovering, etc. are realized by the rotation between the wing root 191 and the wing 192 and the change in the vibration amplitude of the wings caused by the motion of the sliding device 18. With the cooperation of the vision device 6 and the supply box 5, functions such as material delivery, rescue, and inspection can be achieved.

Claims

1. A bionic flapping-wing aircraft The bionic flapping-wing aircraft comprises a front flapping-wing device (1), an intermediate connecting device (2), a counterweight battery (3), a rear flapping-wing device 4, a material box 5 and a visual device 6. The intermediate connecting device 2 is located in the middle of the device; the material box 5 is located directly below the intermediate connecting device; the front flapping-wing device 1 is located in front of the intermediate connecting device 2; the rear flapping-wing device 4 is located behind the intermediate connecting device 2; the visual device 6 is located at the front of the device; the counterweight battery device 3 is located at the rear; The front flapping wing device includes a power device 11, a gear member 112, a frame 13, a connecting rod 14, a slider 15, a rotating rod 16, a rotating member 17, a sliding device 18, and a wing device 19; the power device 11 is located below the frame 13, the gear member 112 is installed in the middle position of the frame 13 and is connected to the gear of the power device 11, the connecting rod 14 is located on the other side of the frame 13 and is connected to the gear member 112, the slider 15 is located above the frame 13 and is connected to the frame 13 and the connecting rod 14, the rotating rod 16 is located on both sides of the slider 15, and its rotating end is connected to the slider 15, the rotating member 17 is located on the edges of both sides of the upper part of the frame, the rotating end is connected to the frame 13, and the sliding end is connected to the rotating rod 16, the sliding device 18 is respectively located at the front and rear of the frame 13 and is symmetrically distributed, the wing device 19 is installed on both sides, the rotating end is connected to the sliding device 18, and the sliding end is connected to the rotating member 16; The power device 11 includes a motor frame 111, a motor 112, and a gear 2113; the motor 112 is located on the motor frame 111, and the gear 2113 is located on the motor 112. The wing device 19 includes a wing root 191 and a wing 192, and the connection is a motor structure and can rotate; The front flapping-wing device 1 and the rear flapping-wing device 4 have the same structure and are symmetrically arranged at the front and rear ends of the device.

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