CN206125407U - Miniature ducted fan aircraft - Google Patents

Abstract

The utility model relates to a miniature ducted fan aircraft, including fuselage and main ducted fan, still include wing and propeller, main ducted fan sets up fuselage central authorities, it is a pair of the wing sets up the fuselage side, the propeller sets up on the wing, main ducted fan adopts coaxial dual -rotor, the wing with the connected mode of fuselage adopts wing body fusion technique. The utility model discloses mainly adopt main ducted fan, have directly take off and land, can hover, low noise, characteristics that lift is big, after adopting wing and propeller in addition, can realize multiple attitude control, control method is simpler.

Description

A miniature ducted fan aircraft

technical field

The utility model relates to the technical field of flight, in particular to a miniature ducted fan aircraft.

Background technique

Coaxial dual-rotor technology: The coaxial dual-rotor helicopter has two pairs of upper and lower rotors that rotate forward and reverse around the same theoretical axis. Due to the opposite steering, the torque generated by the two rotors balances each other in the flight state of the same heading. The unbalanced torque produced by the rotor collective pitch differential can realize the heading control, and the coaxial dual rotors are not only the lifting surface but also the vertical, horizontal and heading control surfaces during the flight of the helicopter. Coaxial dual rotors are used to balance the rotor torque, no tail rotor is required. Structurally, due to the use of two rotors, compared with a single-rotor helicopter of the same weight, if the same paddle disk load is used, the rotor radius is 70% of that of a single-rotor helicopter.

Propeller propeller technology: When the propeller rotates, the blades continuously push a large amount of air (propulsion medium) backwards, generating a forward force on the blades, that is, the propulsion force. In general, propellers have forward speed in addition to rotation. If a small section of blade is taken, it looks like a small section of wing, and its relative airflow velocity is synthesized by forward velocity and rotational velocity. The component force of the aerodynamic force on the blade in the forward direction constitutes the pulling force. The component in the plane of rotation creates a moment that resists the rotation of the propeller, balanced by the moment of the engine.

Ducted fan technology is applied to large helicopters, and propeller propeller technology is applied to ships and aircraft. In recent years, ducted aircraft has become an international research hotspot. This type of ducted aircraft can hover and vertically lift, and can use the forward pull generated by the forward tilt of the duct to achieve low-speed forward flight in helicopter mode, but the nose-up moment and resistance increase rapidly with the increase of forward flight speed, so They are only suitable for hovering and low-speed flight situations. At present, a coaxial counter-rotating dual-rotor ducted vertical take-off and landing aircraft is disclosed. The ducted casing adopts a cavity ring structure and wraps the counter-rotating rotor blades to generate additional leading edge suction, which improves the lift of the aircraft and at the same time Reduced aircraft power requirements. The coaxial counter-rotating dual-rotor itself offsets the spin moment, which is beneficial to the stable control of the attitude of the aircraft. The use of counter-rotating rotors reduces the aerodynamic load of each stage of rotor blades, which is beneficial to reducing aerodynamic losses. At the same time, counter-rotating rotor blades reduce swirl losses, greatly improving aerodynamic efficiency and increasing battery life. But above-mentioned aircraft can't adjust attitude and change course in air horizontal plane, and has no auxiliary function.

Utility model content

The purpose of this utility model is exactly to provide a kind of miniature ducted fan aircraft in order to overcome the defective that above-mentioned prior art exists.

The purpose of this utility model can be achieved through the following technical solutions:

A miniature ducted fan aircraft includes a fuselage and a main ducted fan, the main ducted fan is arranged in the center of the fuselage, and also includes wings and propellers, a pair of wings are arranged on the On the side of the body, the propeller is arranged on the wing.

Preferably, the main duct fan is a coaxial double-rotor fan.

Preferably, the wing and the fuselage are integrally formed through wing-to-body fusion technology.

Preferably, the propeller is a ducted fan and is arranged at the wing end of the wing.

Preferably, it also includes a skid landing gear arranged at the bottom of the fuselage.

Preferably, a camera and a pan/tilt are also included, the pan/tilt is set at the front bottom of the fuselage, and the camera is set at the bottom of the pan/tilt.

Preferably, the platform is a 360-degree rotating platform.

Preferably, the main duct fan, the propeller and the platform are respectively connected with motors.

Preferably, it also includes a wireless receiver arranged under the fairing of the fuselage.

Compared with the prior art, the utility model has the following advantages:

1. After adopting the main ducted fan, it has the characteristics of direct take-off and landing, hovering, low noise, and large lift; after adopting wings and propellers, it can realize various attitude control, and the control method is simpler.

2. Coaxial dual rotors are used, which not only increases the pulling force but also balances the counter torque.

3. The shape of the fuselage is streamlined. Wings are installed on both sides of the fuselage through wing-body fusion technology, making the structure more compact, small in size, easy to carry, and more conducive to completing specific tasks under complex and special conditions.

4. The propeller is a ducted fan, which has a strong driving force and less noise.

5. The skid-type landing gear is adopted to make the landing more stable and protect the fuselage. The structure is simple and the manufacture is cheap.

6. The camera is used to realize the aerial photography function.

7. Adopt 360-degree rotating pan-tilt to realize all-round shooting of the camera.

8. Using a wireless receiver, the camera can transmit the collected images to the intelligent terminal on the ground through a device connected to the ground.

Description of drawings

Fig. 1 is the basic structural diagram of the utility model embodiment 1;

Fig. 2 is a schematic structural view of the coaxial dual-rotor of the utility model embodiment 1;

Among the accompanying drawings: 1 is the fuselage, 2 is the skid landing gear, 3 is the wing, 4 is the propeller, 5 is the main ducted fan, 6 is the camera, 7 is the cloud platform, and 8 is the wireless receiver.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the utility model, and the detailed implementation and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.

Example 1

As shown in FIG. 1 , the present embodiment provides a miniature ducted fan aircraft, including a fuselage 1 , wings 3 , propellers 4 and a main ducted fan 5 . The main ducted fan 5 is arranged in the center of the fuselage 1, and the main ducted fan 5 adopts two pairs of coaxial double rotors that are relatively reversed up and down, and two sets of rotors that are coaxially reversed up and down are used to balance the rotor torque, without The tail rotor can increase the lift, reduce the wingspan of the single rotor, and balance the torque when there is power input. A pair of wings 3 are arranged on the side of the fuselage 1 by adopting wing-to-body fusion technology, and the propeller 4 is arranged on the wing end of the wing 3. The propeller 4 is a ducted fan and is integrated into the wing 3. The fuselage is compact and the volume Small, the duct improves the safety of the aircraft and reduces the aerodynamic noise. The main duct fan 5 and the propeller 4 are respectively connected with motors for providing power.

As shown in Figure 2, the coaxial dual-rotor adopts a linkage mechanism composed of several tie rods, so that the automatic tilter of the dual-rotor is always kept parallel.

Example 2

As shown in FIG. 1 , the miniature ducted fan aircraft provided in this embodiment also includes a skid landing gear 2 connected to the bottom of the fuselage 1 . The skid-type landing gear is simple in structure and cheap to manufacture. Because it is a dead structure without moving parts, there is basically no maintenance work. All the other are with embodiment 1.

Example 3

As shown in Figure 1, the miniature ducted fan aircraft that present embodiment provides also comprises camera 6, cloud platform 7 and wireless receiver 8, and camera 6 is arranged on the bottom of platform 7, and platform 7 can rotate 360 °, and wireless receiver The device 8 is arranged under the fairing of the fuselage and is connected with the camera 6, and the pan-tilt 7 is connected with a motor for providing power. The images collected by the camera 6 are transmitted to the intelligent terminal on the ground through the device interconnected with the ground, so that the picture information taken at high altitude can be observed at any time through the intelligent terminal on the ground. A lithium battery, a wireless control receiver, a camera storage device and a mechanism for controlling the rotation of the camera can also be installed in the fairing of the fuselage. All the other are with embodiment 1.

Claims (7)

1. a kind of miniature ducted fan aircraft, including fuselage and main ducted fan, the main ducted fan are arranged on the machine Body central authorities, it is characterised in that also including wing and propeller, wing described in a pair is arranged on the fuselage side, the propulsion Device is arranged on the wing, and the wing is integrally formed by blended wing-body technology with the fuselage, and the propeller is culvert Road fan and it is arranged on the wing tip of the wing.

2. a kind of miniature ducted fan aircraft according to claim 1, it is characterised in that the main ducted fan is common Axle double-rotor type fan.

3. a kind of miniature ducted fan aircraft according to claim 1, it is characterised in that also including being arranged on the machine The skid landing gear of body bottom.

4. a kind of miniature ducted fan aircraft according to claim 1, it is characterised in that also including video camera and cloud Platform, the head are arranged on the front lower of the fuselage, and the video camera is arranged on the bottom of the head.

5. a kind of miniature ducted fan aircraft according to claim 4, it is characterised in that the head is 360 degree of rotations Turn head.

6. a kind of miniature ducted fan aircraft according to claim 4, it is characterised in that the main ducted fan, institute State propeller and the head respectively with motor connection.

7. a kind of miniature ducted fan aircraft according to claim 1, it is characterised in that also including being arranged on the machine Wireless receiver under body trouserss.