CN210235317U

CN210235317U - Tailstock type unmanned aerial vehicle

Info

Publication number: CN210235317U
Application number: CN201921009532.6U
Authority: CN
Inventors: Xiao Shao; 邵校; Jun Lyu; 吕军
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-03
Anticipated expiration: 2029-07-01

Abstract

A tailstock type unmanned aerial vehicle belongs to the field of unmanned aerial vehicle design. The basic structure to tailstock formula unmanned aerial vehicle is unanimous with current unmanned aerial vehicle, improves locally as follows: the number of the tail support rods is two, and the top ends of the tail support rods are respectively connected with a propeller and an engine; the upper part of the tail stay bar is fixed on the side surface of the wing; the lower part of the tail stay bar is sleeved with a horizontal tail wing and a vertical tail wing, a tilting fan bracket is arranged between the two horizontal tail wings, a tilting fan and a driving motor thereof are arranged on the tilting fan bracket, and the rotating surface of the tilting fan and the driving motor thereof is vertical to the ground and parallel to the plane of the wings; the rudder is arranged on the vertical tail wing; the bottom end of the tail stay bar is provided with a tail support which is vertical to the plane of the wing. Utilize this overall arrangement scheme can develop VTOL unmanned aerial vehicle's novel platform, carry on different task loads, have wide application prospect.

Description

Tailstock type unmanned aerial vehicle

Technical Field

The utility model belongs to unmanned aerial vehicle design field, concretely relates to VTOL unmanned aerial vehicle.

Background

In recent years, the market of unmanned aerial vehicles is rapidly developed, and the application field of the unmanned aerial vehicles is continuously widened. Currently, the fixed wing and rotor classes are the two most common types of drones. They all have their own advantages and disadvantages. The fixed wing aircraft has high pneumatic efficiency, and has dominant voyage, voyage and speed, but needs a runway for taking off and landing or recovery by means of catapult takeoff, parachuting/net collision. The layout of the rotor wing (including a helicopter and a plurality of rotor wings) can realize vertical take-off and landing (VTOL), fixed-point hovering and good low-speed maneuvering performance, but the aerodynamic efficiency is far lower than that of a fixed wing, and the range, the time and the speed are not as good as those of a fixed wing airplane. Therefore, hybrid aircraft that combine the cruise advantages of fixed-wing aircraft with the vertical take-off and landing functions of rotorcraft have been the focus of research in the field of aviation. The tailstock type airplane is a layout scheme of a hybrid unmanned aerial vehicle, is simple in structure and high in efficiency, and has great application potential. However, the current mainstream layout schemes of the tailstock type unmanned aerial vehicle are few in types and have respective defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a section is two send out, two tail-braces, utilize the afterbody to vert the tail section fan and realize the unmanned overall arrangement scheme of tailstock formula that level-vertical flight mode passes through, utilize this overall arrangement scheme can develop VTOL unmanned aerial vehicle's novel platform, carry on different task loads, have wide application prospect.

The technical scheme of the utility model:

the utility model provides a tailstock formula unmanned aerial vehicle, tailstock formula unmanned aerial vehicle include fuselage 1, wing 2, aileron 3, screw and engine 4, tail vaulting pole 5, horizontal fin 6, vertical fin 7, the fan support 8 that verts, the fan that verts and driving motor 9, rudder 10 and afterbody support 11. The basic structure to tailstock formula unmanned aerial vehicle is unanimous with current unmanned aerial vehicle, improves locally as follows:

the number of the tail stay rods 5 is two, and the top ends of the tail stay rods are respectively connected with a propeller and an engine 4; the upper part of the tail stay bar 5 is fixed on the side surface of the wing 2; the lower part of the tail stay bar 5 is sleeved with a horizontal tail wing 6 and a vertical tail wing 7, a tilting fan bracket 8 is arranged between the two horizontal tail wings 6, a tilting fan and a driving motor 9 thereof are arranged on the tilting fan bracket 8, and the rotating surface of the tilting fan and the driving motor 9 thereof is vertical to the ground and parallel to the plane of the wing 2; the rudder 10 is arranged on the vertical tail 7; the bottom end of the tail stay bar 5 is provided with a tail support 11, and the tail support 11 is vertical to the plane of the wing 2.

The utility model has the advantages that:

(1) the unmanned aerial vehicle integrates the advantages that the rotor type aircraft does not need a runway and can vertically hover and the advantages that the fixed-wing aircraft is fast in speed and large in load when being horizontally patrolled.

(1) The double-head double-tail-support layout structure is simple and high in pneumatic efficiency. The double propellers rotate reversely, respective reactive torques are offset, the reactive torque problem of the layout of the single-engine single propeller is avoided, and the single-engine coaxial propeller is not complicated in structure and low in pneumatic efficiency. Compared with the layout of four or even more engines, the two motors can provide enough pulling force to realize the vertical take-off and landing and the tilting transition of the airplane, and the redundant increase of the number of the engines and the weight are avoided.

(2) The tilting fan is independently arranged in the middle of the horizontal tail wing to realize transitional flight between the vertical hovering state and the horizontal cruising state of the unmanned aerial vehicle, and the control is simple and reliable; and the mainstream tailstock formula unmanned aerial vehicle generally utilizes the control surface of submergence in the screw propeller wake to realize the attitude conversion, and the control degree of difficulty is great.

Drawings

Fig. 1 is an isometric view of a drone.

In the figure: 1 fuselage, 2 wings, 3 ailerons, 4 propellers and engines, 5 tail stay bars, 6 horizontal tail fins, 7 vertical tail fins, 8 tilting fan brackets, 9 tilting fans and driving motors thereof, 10 rudders and 11 tail brackets

Detailed Description

The technical solution of the present invention is further explained below according to the specific embodiments.

When the tail seat type unmanned aerial vehicle stops flying, the tail seat type unmanned aerial vehicle stands vertically on the ground through the tail support 11. During takeoff, the double propellers and the engine 4 work, the lift force generated by the propellers is gradually increased, and when the lift force exceeds the gravity, the airplane leaves the ground and enters a hovering mode. At this time, the tilting fan and the driving motor 9 of the tilting fan are controlled to rotate, so that the unmanned aerial vehicle can move back and forth. Continue to increase the rotational speed of the fan that verts, unmanned aerial vehicle angle of attack reduces from 90 degrees gradually, and the aircraft flies the speed increase before, and lift crescent is until transition to horizontal cruise mode.

Unmanned aerial vehicle landing is the reverse process of takeoff. When descending, control the fan that verts and make unmanned aerial vehicle angle of attack increase to 90 degrees, the aircraft gets into the state of hovering perpendicularly, and double screw and 4 rotational speeds of engine reduce gradually afterwards, and unmanned aerial vehicle height descends until tail support 11 and ground contact, accomplish the landing process.

Claims

1. A tailstock type unmanned aerial vehicle is characterized by comprising a body (1), wings (2), ailerons (3), propellers, an engine (4), tail stay bars (5), horizontal empennages (6), vertical empennages (7), tilting fan supports (8), tilting fans, driving motors (9) of the tilting fans, a rudder (10) and a tail support (11);

the number of the tail stay rods (5) is two, and the top ends of the tail stay rods are respectively connected with a propeller and an engine (4); the upper part of the tail stay bar (5) is fixed on the side surface of the wing (2); the lower part of the tail stay bar (5) is sleeved with a horizontal tail wing (6) and a vertical tail wing (7), a tilting fan support (8) is arranged between the two horizontal tail wings (6), a tilting fan and a driving motor (9) thereof are arranged on the tilting fan support (8), and the rotating surface of the tilting fan and the driving motor (9) thereof is vertical to the ground and parallel to the plane of the wing (2); the rudder (10) is arranged on the vertical tail wing (7); the bottom end of the tail stay bar (5) is provided with a tail support (11), and the tail support (11) is vertical to the plane of the wing (2).