An electric coaxial unmanned helicopter transmission system

Abstract

The invention discloses an electric coaxial unmanned helicopter transmission system, which comprises an outer shaft, an inner shaft, a box body, an outer shaft motor, an inner shaft motor, an outer shaft belt transmission device connecting the outer shaft motor and the outer shaft, and a connecting inner shaft motor. The inner shaft belt transmission device of the shaft motor and the inner shaft, the outer shaft is a hollow shaft, and the two ends of the outer shaft are respectively fixedly connected with a bearing seat, and each bearing seat is equipped with a bearing; the inner shaft is coaxially sleeved in the outer shaft, The two ends of the inner shaft protruding from the outer shaft are respectively sleeved with a bearing; the outer shaft is fixed in the middle of the box body through a main bearing plate, the outer shaft motor is fixed at the left end of the box body through the outer shaft motor mounting rib, and the outer shaft The motor is electrically connected with the outer shaft power supply; the inner shaft motor is fixed on the right end of the box body through the inner shaft motor installation rib, and the inner shaft motor is electrically connected with the inner shaft power supply. The electric coaxial unmanned helicopter transmission system has the advantages of small weight, small occupied space, low noise and low processing cost, and improves the endurance time of the unmanned helicopter.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to an electric coaxial unmanned helicopter transmission system. Background technique [0002] At present, the power of common unmanned helicopters is divided into electric and oil. Since oil-powered unmanned helicopters use gasoline as fuel, good engine characteristics can provide sufficient power for unmanned helicopters. This makes the oil-powered unmanned helicopter have the advantages of large load and long battery life. However, with these advantages, the oil-powered unmanned helicopter inevitably has some disadvantages, such as difficult manipulation, large vibration, and loud noise. At present, large-load unmanned helicopters at home and abroad are basically in the form of oil power, such as the unmanned helicopter FazerR of Yamaha Corporation of Japan, and the F-120 of the Helicopter Institute of Beijing University of Aeronautics and Astronautics. [0003] Compared with o...

AI Technical Summary

Problems solved by technology

The most noteworthy part is the design of the transmission mechanism. At present, the mainstream transmission mechanism is gear transmission. The advantages of gear transmission are stable transmission ratio, long life and high reliability. The disadvantages are large vibration, large noise and weight. Large, requiring high processing cost and processing accuracy

However, the unmanned helicopter adopts the form of gear transmission, which will greatly increase the weight of the body, and increase the vibration and noise of the whole machine. At the same time, the oil-driven unmanned helicopter will cause the vibration and noise of the whole machine to be extremely large due to the engine, and the control is stable. Sex is not enough

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