Retractable rotor wing for unmanned aerial vehicle

Abstract

The invention discloses a retractable rotor wing for an unmanned aerial vehicle. The retractable rotor wing comprises a rotor wing support, a driving motor, a speed reduction transmission assembly androtor wing retraction assemblies. According to the retractable rotor wing, the rotor wing support distributed in a cross shape is arranged on the unmanned aerial vehicle, the rotor wing retraction assemblies are arranged on the rotor wing support, slide blocks are arranged in the rotor wing retraction assemblies, and rotary wing assemblies are arranged on the slide blocks. Four fourth bevel gearsare driven through the speed reduction transmission assembly and a first bevel gear respectively, the slide blocks are driven to move in four slideways of a rotor wing retraction rack through the fourth bevel gears and lead screws, the four rotary wing assemblies on the unmanned aerial vehicle extend out of a vehicle body under the working state and retract into the vehicle body under the non-working state, and the defect is overcome that in the carrying process, the rotor wing is easily damaged. The retractable rotor wing has the advantages that the structure is simple, the size of the unmanned aerial vehicle is effectively reduced, extension and retraction are flexible, and the automatic spreading under the working state can be quickly achieved.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, and relates to a structure for retractable rotors, in particular to a retractable rotor for an unmanned aerial vehicle. Background technique [0002] In recent years, with the gradual maturity of UAV research and development technology and the reduction of manufacturing costs, UAVs have been widely used in various fields. In addition to military applications, they also include agricultural plant protection, power inspection, police law enforcement, geological exploration, Civilian fields such as environmental monitoring, forest fire prevention, and film and television aerial photography, and its applicable fields are still expanding rapidly. At present, there are various types of UAVs on the market, and their functions are becoming more and more abundant. Most of the UAVs in the prior art use four-rotor assemblies, and the rotors of the four-rotor assemblies are all extended outs...

AI Technical Summary

Problems solved by technology

At present, there are various types of UAVs on the market, and their functions are becoming more and more abundant. Most of the UAVs in the prior art use four-rotor assemblies, and the rotors of the four-rotor assemblies are all extended outside the fuselage. The problem is that there is no The rotor of the man-machine cannot be retracted or folded in the non-working state, and its structure makes it bulky, which is not easy to carry and easily cause damage to the rotor during transportation.

Images