Coaxial rotor unmanned aerial vehicle based on vector mechanism

Abstract

The invention provides a coaxial rotor unmanned aerial vehicle (UAV) based on a vector mechanism. The coaxial rotor UAV comprises a power assembly (1), the vector deflection mechanism (2) and a fuselage (3), wherein the power assembly (1) comprises a coaxial motor driving unit, an upper rotor unit and a lower rotor unit; and the vector deflection mechanism (2) comprises an inner ring seat (21), aninner ring seat deflection unit, an outer ring seat (22), an outer ring seat deflection unit and a vector mechanism base (23). The coaxial rotor UAV based on the vector mechanism has the advantages of realizing the vector pulling force technique of the coaxial rotor UAV by using two vector control steering gears to control a two-degree-of-freedom rotating mechanism, providing a novel coaxial rotor UAV configuration, simplifying the structure, effectively simplifying the structure for changing the spatial direction of the thrust of rotors, reducing the number of components of a power unit andimproving the reliability and structural safety of a system.

Description

technical field [0001] The invention belongs to the technical field of vertical take-off and landing unmanned aerial vehicles, and in particular relates to a coaxial double-rotor unmanned aerial vehicle based on a vector mechanism. Background technique [0002] Coaxial dual-rotor UAV has the advantages of vertical take-off and landing, low requirements for take-off and landing sites, and convenient use, and has great development prospects. Traditional unmanned helicopters have to arrange the tail rotor because of the need to balance the reaction torque and control the heading, which leads to the disadvantages of complex results, large volume and poor reliability. Most of the existing coaxial dual-rotor drones use two or more engines to connect with the reducer and other mechanisms, and the two output shafts of the reducer that turn in opposite directions are respectively connected with the upper and lower rotors to realize the reverse rotation of the upper and lower rotors. ...

AI Technical Summary

Problems solved by technology

[0003] Traditional coaxial dual-rotor drones mostly control the attitude and motion of the drone by deflecting the rotor axis, such as a large-load low-structure dual-coaxial dual-rotor unmanned aerial vehicle disclosed in the invention patent CN201510182069.5 The shortcoming of the full-pitch mechanism used is that there are certain difficulties in safety design, such as complex structure of power components, many parts and large resistance, etc.

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