Propeller assembly and aircraft

Abstract

The invention provides a propeller assembly. The propeller assembly comprises a first transmission shaft, a second transmission shaft, a first propeller seat, a second propeller seat and a motor set;the first transmission shaft sleeves the second transmission shaft and is coaxially arranged relative to the second transmission shaft, the first transmission shaft and the second transmission shaft rotate independently, the first propeller seat and the second propeller are arranged at intervals in an overlaying and inversing mode, the propeller assembly further comprises a support part fixedly connected with the first propeller seat, the support part sleeves the second transmission shaft, the support part comprises a body part fixed to the first propeller seat and forming a hollow area, the body part is provided with a hollowed-out structure, the hollowed-out structure communicates with the hollow area, and the second transmission shaft penetrates through the hollow area and is connectedwith the second propeller seat. Compared with relative technologies, the propeller assembly and an aircraft are small in energy consumption, high in cruising ability, and high in flight efficiency.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a propeller assembly and an aircraft. Background technique [0002] With the development of society, the application fields of unmanned aerial vehicles are constantly expanding. Both industrial aircraft and consumer aircraft have made great progress, especially small and micro unmanned aerial vehicles represented by multi-propeller unmanned aerial vehicles and fixed-wing unmanned aerial vehicles. , It has been widely used in various application fields, and pesticide spraying aircraft, aerial photography aircraft, detection aircraft, etc. are now also widely used. Along with the requirement to the endurance of aircraft, the compound wing aircraft that has propeller and fixed wing simultaneously begins to rise. [0003] The propeller assembly in the related art includes a first transmission shaft and a second transmission shaft, a first propeller seat sleeved and fixed on the first transmi...

AI Technical Summary

Problems solved by technology

In order to ensure that the first propeller seat and the second propeller seat do not collide when rotating, the first propeller seat and the second propeller seat need to be separated by a certain distance. At this time, the first propeller seat and the second propeller seat The second transmission shaft between the second propeller seats is in an exposed state. During use, as the height of the aircraft increases, the second transmission shaft is easily inclined under the action of air pressure or wind force, so that the first A drive shaft is squeezed, causing energy loss and affecting transmission efficiency, which is not conducive to the improvement of flight performance

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