Fixed-pitch tandem type electric unmanned helicopter

Abstract

The invention discloses a fixed-pitch tandem type electric unmanned helicopter. Two rotor wing devices are arranged at the front end and the rear end of a helicopter body respectively, reaction torquecan be counteracted through reverse rotation of the two rotor wing devices, a tail rotor structure does not need to be arranged, the structure of the unmanned helicopter is simple and compact, the tail rotor structure is omitted, vortex influences caused by a tail rotor can be avoided, and the aerodynamic efficiency of the unmanned helicopter is improved. According to a propeller in the unmannedaerial vehicle, fixed pitch is adopted, and electric speed regulation is conducted to realize total pitch control; the front and rear power devices are motors mounted on the helicopter body, the motors adopt electronic speed regulation, and the lifting force is adjusted by adjusting the rotating speed to realize up-and-down movement; through the multi-blade propeller and the swash plate-free modethat the shaft can horizontally rotate, the propeller generates an inclination angle, and front-back movement is achieved; the fixed-pitch tandem type electric unmanned helicopter has the advantages of being simple in structure, reasonable in design, convenient to control, low in failure rate and the like.

Description

technical field [0001] The disclosure of the invention relates to the technical field of unmanned aerial vehicles, in particular to a fixed-pitch tandem electric unmanned helicopter. Background technique [0002] Since unmanned helicopters can not only take off and land vertically, hover freely, but also have a relatively moderate endurance time and flight speed, they can be used in medium-range application scenarios, such as: isolated island transportation, aviation geophysical exploration, rescue and disaster relief, etc. However, most unmanned helicopters have certain problems, such as difficult control and high requirements for flight controllers and operators. In addition, most unmanned helicopters are equipped with tail rotors on the UAV in order to balance the anti-torque generated by the main rotor. Due to the setting of the tail rotor, the mechanical efficiency of the unmanned helicopter is not only reduced, but also susceptible to crosswind interference. , The fus...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a fixed-pitch tandem electric unmanned helicopter, to at least solve the problems of low aerodynamic efficiency and high failure rate in previous unmanned helicopters

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