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CN-224211272-U - Lightweight bionic butterfly aircraft

CN224211272UCN 224211272 UCN224211272 UCN 224211272UCN-224211272-U

Abstract

The utility model discloses a lightweight bionic butterfly aircraft, which relates to the technical field of bionic aircraft and comprises a front wing and a rear wing, wherein the front wing and the rear wing are respectively composed of a carbon fiber skeleton and a thermoplastic polyester film, the front wing and the rear wing respectively comprise a left wing and a right wing, the front ends of the left wing and the right wing of the front wing and the rear wing are hinged to two sides of a front connecting piece and a rear connecting piece, the front connecting piece is connected with the rear connecting piece through a carbon fiber connecting rod, the tail end of the carbon fiber connecting rod is positioned at the rear end of the rear wing, a hollow cup motor is arranged on the front connecting piece, the output end of the hollow cup motor is connected with the front end of the front wing sequentially through a gear transmission mechanism and a reciprocating connecting rod mechanism, the connecting position is positioned between the rear edge of the front wing and the front edge of the rear wing through a flexible string, the tail end of the carbon fiber connecting rod is provided with a steering engine, and rudder arms of the steering engine are connected to wing tips of the left wing and the right wing of the front wing through the flexible string. The weight is greatly reduced while the strength is ensured, and the quick adjustment of the flying direction is realized.

Inventors

  • YAN XIONG
  • WANG YAOHUI
  • GUO TING
  • LUO WEIYE
  • DANG RUIDONG

Assignees

  • 西安交通大学

Dates

Publication Date
20260508
Application Date
20250523

Claims (10)

  1. 1. A lightweight bionic butterfly aircraft, which is characterized by comprising a front wing (7) and a rear wing (8) The front fin (7) and the rear fin (8) are respectively composed of a carbon fiber framework and a fin film, the front fin (7) and the rear fin (8) both comprise left and right fins, the front ends of the left and right fins of the front fin (7) are hinged with the two sides of the front connecting piece (2) through front fin fixing hinges (5), and the front ends of the left and right fins of the rear fin (8) are hinged with the two sides of the rear connecting piece (3) through rear fin fixing hinges (6); The front connecting piece (2) is connected with the rear connecting piece (3) by adopting a carbon fiber connecting rod (4), and the tail end of the carbon fiber connecting rod (4) is positioned at the rear end of the rear wing (8); The front connecting piece (2) is provided with a hollow cup motor, and the output end of the hollow cup motor is connected with the front end of the front wing (7) through a gear transmission mechanism (1) and a reciprocating connecting rod mechanism (12) in sequence; the front wing (7) and the rear wing (8) are connected through a flexible string (13), and the connection position is positioned between the rear edge of the front wing (7) and the front edge of the rear wing (8); the tail end of the carbon fiber connecting rod (4) is provided with a steering engine, and a steering arm of the steering engine is connected to wing tips of left and right wings of the front wing (7) through a flexible string (13).
  2. 2. The lightweight bionic butterfly aircraft according to claim 1, wherein an overlapping area is provided between the rear edge of the front wing (7) and the front edge of the rear wing (8), the overlapping area being 10% -15% of the total area of the front wing (7) and the rear wing (8).
  3. 3. The lightweight bionic butterfly aircraft according to claim 1, wherein the gear transmission mechanism (1) comprises a central reduction gear (9), a left driving gear (10) and a right driving gear (11), the central reduction gear (9) is meshed with the output end of the hollow cup motor, and the left driving gear (10) and the right driving gear (11) are respectively connected with a reciprocating connecting rod mechanism (12).
  4. 4. The lightweight bionic butterfly aircraft according to claim 1, characterized in that the front end of the reciprocating linkage (12) is connected with the front wing fixed hinge (5) by a hinge.
  5. 5. The lightweight bionic butterfly aircraft according to claim 1, wherein the front wing (7) comprises a main wing and an auxiliary wing, the main wing is arranged at the front edge and the middle part of the front wing (7), and the auxiliary wing is arranged at the rear edge of the front wing (7) and the edge of the rear wing (8).
  6. 6. The lightweight bionic butterfly aircraft of claim 5, wherein the primary veins are comprised of carbon fiber rods having diameters of 1.0mm and 0.8mm, and the secondary veins are comprised of carbon fiber rods having diameters of 0.5mm.
  7. 7. A lightweight bionic butterfly aircraft according to claim 1, characterized in that the wing film is made of thermoplastic polyester film with thickness of 0.1mm, glued to the carbon fiber skeleton of the front wing (7) and the rear wing (8).
  8. 8. The lightweight bionic butterfly aircraft according to claim 1, wherein the rear connecting piece (3) is provided with a flight control module, and the hollow cup motor is connected with the steering engine and the flight control module through cables.
  9. 9. The lightweight bionic butterfly aircraft of claim 8, wherein the flight control module includes a receiver for receiving external signals, a controller electrically coupled to the cup motor and the steering engine, and an electrical control.
  10. 10. The lightweight bionic butterfly aircraft according to claim 1, characterized in that the end of the carbon fiber connecting rod (4) is provided with a battery, and the battery is connected with the hollow cup motor and the steering engine.

Description

Lightweight bionic butterfly aircraft Technical Field The utility model belongs to the field of bionic aircrafts, and relates to a lightweight bionic butterfly aircraft. Background The main design principle of the bionic butterfly aircraft is to simulate the flight mechanism of the butterfly, including the flapping mode of wings and aerodynamic characteristics. The traditional bionic aircraft mostly adopts a fixed-amplitude flapping wing structure, and has the defects of poor steering flexibility, high energy consumption, short endurance and the like. Some designs attempt to control steering with double steering engines, but are complex in structure and response-retarding. In addition, the wing rigidity of the existing bionic butterfly aircraft is too strong, and the flexible deformation of the real butterfly is difficult to simulate, so that the lifting efficiency is low. Disclosure of utility model The utility model aims to overcome the defects of the prior art, and provides a lightweight bionic butterfly aircraft, which can greatly reduce weight and realize rapid adjustment of the flight direction while ensuring strength. In order to achieve the purpose, the utility model is realized by adopting the following technical scheme: A lightweight bionic butterfly aircraft, comprising a front wing and a rear wing; The front wing and the rear wing are respectively composed of a carbon fiber framework and a thermoplastic polyester film, the front wing and the rear wing both comprise left and right wings, the front ends of the left and right wings of the front wing are hinged with the two sides of the front connecting piece through front wing fixing hinges, and the front ends of the left and right wings of the rear wing are hinged with the two sides of the rear connecting piece through rear wing fixing hinges; The front connecting piece and the rear connecting piece are connected by adopting a carbon fiber connecting rod, and the tail end of the carbon fiber connecting rod is positioned at the rear end of the rear wing; the front connecting piece is provided with a hollow cup motor, and the output end of the hollow cup motor is connected with the front end of the front wing through a gear transmission mechanism and a reciprocating connecting rod mechanism in sequence; the front wing and the rear wing are connected through a flexible string, and the connecting position is positioned between the rear edge of the front wing and the front edge of the rear wing; the tail end of the carbon fiber connecting rod is provided with a steering engine, and a rudder arm of the steering engine is connected to wing tips of left and right wings of the front wing through a flexible string. Preferably, an overlapping area is arranged between the front wing trailing edge and the rear wing leading edge, and the overlapping area is 10% -15% of the total area of the front wing and the rear wing. Preferably, the gear transmission mechanism comprises a central reduction gear, a left driving gear and a right driving gear, wherein the central reduction gear is meshed with the output end of the hollow cup motor, and the left driving gear and the right driving gear are respectively connected with a reciprocating connecting rod mechanism. Preferably, the front end of the reciprocating link mechanism is connected with the front wing fixing hinge through a hinge. Preferably, the front wing comprises a main wing vein and a subsidiary wing vein, wherein the main wing vein is arranged at the front edge and the middle part of the front wing, and the subsidiary wing vein is arranged at the rear edge and the rear wing edge of the front wing. Preferably, the primary veins are formed by carbon fiber stems of diameters 1.0mm and 0.8mm, and the secondary veins are formed by carbon fiber stems of diameters 0.5 mm. Preferably, the fin film is a thermoplastic polyester film having a thickness of 0.1mm, and is glued to the carbon fiber skeleton of the front fin and the rear fin. Preferably, the rear connecting piece is provided with a flight control module, and the hollow cup motor is connected with the steering engine and the flight control module through cables. Preferably, the flight control module comprises a receiver, a controller and an electric regulator, wherein the receiver is used for receiving external signals, and the controller is electrically connected with the hollow cup motor and the steering engine. Preferably, the tail end of the carbon fiber connecting rod is provided with a battery, and the battery is connected with the hollow cup motor and the steering engine. Compared with the prior art, the utility model has the following beneficial effects: The utility model adopts a carbon fiber framework and thermoplastic polyester film composite structure, greatly reduces weight while ensuring strength, and realizes the rapid adjustment of the flying direction by remotely controlling and rapidly adjusting the flying direction, wherein a tail steerin