CN214729656U

CN214729656U - Ornithopter

Info

Publication number: CN214729656U
Application number: CN202120010892.9U
Authority: CN
Inventors: 王胜利
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-16
Anticipated expiration: 2031-01-05

Abstract

The utility model provides a flapping wing aircraft, which comprises an aircraft body, wings, a flapping wing device for driving the flapping edges of the wings and a tail rudder mechanism for controlling the flying state; the tail rudder mechanism comprises a tail wing, the tail part of the tail wing extends towards two sides like wings, a rotating shaft is formed at the starting part of the tail wing and inserted into a rudder machine fixed on a machine body, and the rudder machine is connected with a control circuit board and a battery which are arranged on the machine body. The utility model discloses in, adopt rotation mode to realize ornithopter flight control, control simple structure.

Description

Ornithopter

Technical Field

The utility model relates to a flapping wing aircraft field, especially a flapping wing aircraft with tail wing.

Background

Ornithopter refers to a heavier-than-air aircraft whose wings can flap up and down like birds and insect wings. Also known as a vibrating wing machine. At present, the ornithopter toy can fly in the air like a kite, and is popular with players.

Chinese invention grant publication No. CN 106494618B discloses a feather type ornithopter, which comprises a body and ornithopter devices connected to the body from left and right sides, the ornithopter devices comprising:

a pair of flapping wing main shafts which are connected to the left and right sides of the fuselage in a pivoting manner and can flap up and down relative to the fuselage;

the linkage mechanism can drive the flapping wing main shaft to flap up and down, one end of the linkage mechanism is movably connected to the flapping wing main shaft, and the other end of the linkage mechanism is connected to the machine body; and

the front end of the flapping wing is connected to the flapping wing main shaft so as to flap up and down along with the flapping wing main shaft, the tail end of the flapping wing is connected to the machine body, and the flapping wing main shaft consists of a plurality of movably connected sections. The flapping wing comprises a plurality of movably connected support frames and a plurality of wing pieces respectively positioned in each support frame.

The motion of the sliding block in the sliding rail is controlled by the steering engine, the empennage is connected to a shaft on the machine body through a rotating pair, and the empennage rudder is connected to the empennage through the rotating pair and controls the empennage to swing up and down, so that the ornithopter ascends and performs the action of diving flight.

In the feather type ornithopter, a tail wing is connected to a machine body through a rotating pair, and the up-and-down swinging of the tail wing is controlled to realize the ascending and diving flight actions. Since the realization of the up-and-down swing requires a relatively complicated structure, it cannot satisfy the user's demand.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the fin structure of the more complicated upper and lower hem that present ornithopter adopted, can not satisfy user's demand, provide an ornithopter of rotatory fin structure of utensil.

The utility model discloses realize that its technical purpose technical scheme is: a flapping-wing aircraft comprises an airframe, wings, a flapping wing device for driving the wings to flap edges, and a tail rudder mechanism for controlling the flight state; the tail rudder mechanism comprises a tail wing, the tail part of the tail wing extends towards two sides like wings, a rotating shaft is formed at the beginning part of the wing and is inserted into a rudder machine fixed on a machine body, and the rudder machine is connected with a tail control circuit board and a battery which are arranged on the machine body and are controlled. When the empennage is installed, the empennage and the fuselage are integrally installed in an upturned 43-degree mode.

Further, in the above-mentioned ornithopter: the wings extend from the fuselage to two sides and comprise a framework with the root hinged on the fuselage and a film fixed on the framework.

Further, in the above-mentioned ornithopter: the flapping wing device comprises a motor arranged on the machine body, a reduction gear mechanism connected with the motor shaft, a pair of flapping wing gears with the same diameter symmetrically meshed with two sides of an output gear of the reduction gear mechanism, and a connecting rod, wherein one end of the connecting rod is movably connected with the eccentric position of the flapping wing gears, and the other end of the connecting rod is movably connected with the framework.

The utility model discloses in, adopt rotation mode to realize ornithopter flight control, control simple structure.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a structural diagram (1) of the ornithopter of the utility model.

Figure 2 is the structure diagram (2) of the ornithopter of the utility model.

Detailed Description

The embodiment is a flapping-wing aircraft, which has a flapping-wing device driven by a motor, as shown in fig. 1 and fig. 2, the device comprises a fuselage 1, wings 2, a flapping-wing device 3 for driving the wings to flap, and a tail rudder mechanism 4 for controlling the flight state; in the embodiment, the framework of the ornithopter, which is made of a carbon fiber rod with higher strength instead of a fragile bamboo rod, comprises a fuselage 1 and a wing 2, a film is used as the wing 2 of the ornithopter, and in the wing, a framework rod penetrating through the whole wing is used as a main shaft of the ornithopter, namely the framework for supporting the film to form a wing shape.

In the embodiment, the tail rudder mechanism 4 is adopted to control the flight state of the ornithopter, the flight actions comprise left-turn flight, right-turn flight linear flight and other flight actions, the actions can be realized by the tail rudder mechanism 4 consisting of the tail wings 4-1, the actions are generated under the condition of no vertical tail, the common practice that the aircraft needs to turn by vertical tail is broken through, as shown in fig. 1 and fig. 2, the tail rudder mechanism 4 in the embodiment comprises the tail wings 4-1, the tail parts of the tail wings 4-1 extend towards two sides like the wings 2, the starting part of the tail wings 4-1 forms a rotating shaft 4-3 to be inserted into a steering engine 4-2 fixed on the aircraft body 1, and the steering engine 4-2 is connected with a control circuit board 5 and a battery 6 arranged on the aircraft body 1. The motor in the steering engine 4-2 drives the tail wing 4-1 to rotate, the rotating angle is controlled by the control circuit board, in the embodiment, the control circuit board 5 is provided with a control program, so that the motor in the steering engine 4-2 drives the tail wing 4-1 to rotate in the flying process under the control of the flight control program, and the control of the flying process is realized. Of course, a remote control mode can also be adopted, for example, a hand-held remote controller is adopted and is connected with a control circuit board on the machine body 1 in a wireless communication mode, flight control commands are sent to the ornithopter at any time, for example, the ornithopter is controlled to turn left, turn right, go straight and the like, and after the commands are analyzed on the control circuit board, a motor in the steering engine 4-2 is driven to drive the empennage 4-1 to rotate so as to realize the flight attitude control. Steering engines are originally a large deck machine on ships. The size of the steering engine is determined by outsourcing according to the specification of a classification society, and the torque is mainly considered during model selection. In the aspect of spaceflight, the steering engine is widely applied. In the aspect of spaceflight, pitching, yawing and rolling motions of missile attitude transformation are completed by mutual matching of steering engines. Steering engines have applications in many projects, not just marine. In the embodiment, by means of the concept of the steering engine, the power for driving the tail wing to rotate is utilized, and the flight control of the ornithopter is realized under the control of the control device.

In this embodiment, the tail of the tail 4-1 extends to both sides as the wing 2 to form a horizontal tail 4-1, in practice, the horizontal tail has an upwarp angle of about 43 degrees, when the ornithopter flies, the motor and the gear set enable the film type wing to rapidly fan through the connecting rod and the ornithopter mechanism, so that the film type wing generates airflow backwards to enable the aircraft to fly forwards, therefore, the fuselage has a flight attack angle, the secondary attack angle can generate an upward lift force, when the rotating speed of the motor is changed, the backward airflow generated by the wing 2 can also be changed, the corresponding lift force can also be changed, that is, the size of the power is changed, besides changing the flight speed, the aircraft can also make different actions of ascending, horizontal flight and descending, and only the axial rotation angle of the horizontal tail needs to be changed when the aircraft turns. In practice, the axial rotation is better than the up-down swing, the control is convenient, and the key is that the turning can be realized without a vertical tail wing.

In the embodiment, the wing 2 extends from the fuselage to two sides and comprises a framework 2-1 with the root part hinged on the fuselage 1 and a film 2-2 fixed on the framework 2-1, as shown in the figure, a solid framework rod is arranged at the front part of the wing 2, one end of the rod is hinged with the fuselage, so that the rod can swing back and forth by taking the hinged part as a circle center, the rod is a flapping wing main shaft, the flapping wing device 3 drives the flapping wing main shaft to swing up and down, and the two wings of the flapping wing machine flap up and down to provide lifting power.

In this embodiment, the steering engine and the horizontal tail wing of afterbody upwarp 43 degrees erection angles and obtain through preliminary calculation and a large amount of test flight work, and this direction installation is favorable to steering control.

In the embodiment, the flapping wing device 3 comprises a motor 3-1 arranged on the machine body 1, a reduction gear mechanism 3-2 connected with the motor shaft, a pair of flapping wing gears 3-3 with the same diameter symmetrically meshed at two sides of an output gear of the reduction gear mechanism 3-2, and a connecting rod 3-4 with one end being movably connected with the center of the flapping wing gears 3-3 and the other end being movably connected with the framework 2-1. In the embodiment, the connecting rods 3-4 are mainly hinged with the main flapping wing shafts on the wings 2, so that the main flapping wing shafts are driven to swing back and forth by taking the connecting part of the main flapping wing shafts and the fuselage 1 as a rotating shaft, and the purpose of driving a pair of wings 2 of the ornithopter to flap up and down is achieved.

In this embodiment, the connecting rod 3-4 is a plate-shaped section with through holes at two ends, and may be a sheet of bamboo or other light sheet, a first fixing shaft is disposed at the eccentric position of the flapping wing gear 3-3, a second fixing shaft is disposed on the main shaft of the flapping wing, and the through holes at two ends of the connecting rod 3-4 are penetrated by the first fixing shaft and the second fixing shaft respectively. In practice, the flapping edges of the pair of wings 2 of the ornithopter are different in amplitude according to requirements, and the distance between the first fixed shaft and the center of the flapping wing gear 3-3 is different.

Claims

1. A flapping-wing aircraft comprises an aircraft body (1), wings (2), a flapping wing device (3) for driving the wings to flap edges, and a tail rudder mechanism (4) for controlling the flight state; the method is characterized in that: the tail vane mechanism (4) comprises a tail wing (4-1), the tail part of the tail wing (4-1) extends towards two sides like the wing (2), a rotating shaft (4-3) is formed at the starting part of the tail wing (4-1) and inserted into a steering engine (4-2) fixed on the body (1), and the steering engine (4-2) is connected with a control circuit board (5) and a battery (6) which are arranged on the body (1).

2. The ornithopter of claim 1, wherein: when the empennage (4-1) is installed, the empennage and the fuselage (1) are integrally installed in an upwarping 30-50 degrees.

3. The ornithopter of claim 1, wherein: the wings (2) extend from the fuselage to two sides and comprise a framework (2-1) with the root part hinged on the fuselage (1) and a film (2-2) fixed on the framework (2-1).

4. The ornithopter of claim 3, wherein: the flapping wing device (3) comprises a motor (3-1) arranged on the machine body (1), a reduction gear mechanism (3-2) connected with the motor shaft, a pair of flapping wing gears (3-3) with the same diameter and symmetrically meshed with the two sides of an output gear of the reduction gear mechanism (3-2), and a connecting rod (3-4) with one end movably connected with the center of the flapping wing gears (3-3) and the other end movably connected with the framework (2-1).