Transmission mechanism of tandem twin-rotor pilotless plane

Abstract

The invention relates to a transmission mechanism of a tandem twin-rotor pilotless plane, which comprises a pair of rotor devices. The center distance of the two rotor devices is less than two times of the radius of turn of each rotor device; the rotor devices comprise rotors, rotating shafts and driving devices; the rotors are coaxially arranged on the rotating shafts; the rotating shafts are connected with the outputs of the driving devices through transmission pairs; one ends of the rotating shafts of the rotor devices are provided with bevel gears; an intermediate shaft is arranged between the two rotor devices; both ends of the intermediate shaft are respectively provided with a relay bevel gear; and the two relay bevel gears are respectively meshed with the bevel gears of the two rotor devices. After the transmission mechanism is adopted, the two rotor devices can be ensured to synchronously and relatively rotate, the torque of the intermediate shaft can be greatly reduced, the service life of the transmission mechanism is prolonged and the maintenance is reduced.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a transmission mechanism of a tandem double-rotor unmanned aircraft. Background technique [0002] At present, in the tandem dual-rotor aircraft, since the center-to-center distance of the two rotor devices is less than twice the radius of rotation of the rotor devices, in order to prevent the rotors of the two rotor devices from interfering, the rotors of the two rotor devices are rotating In the process, a certain angle difference must be kept at all times, which requires that the rotors of the two rotor devices must keep absolutely synchronous rotation, otherwise the rotors of the two rotor devices will interfere. In the prior art, in order to ensure that the rotors of the two rotor devices rotate synchronously, only one driving device is used to simultaneously drive the rotors of the two rotor devices to rotate. Although this transmission mode ensures the sy...

AI Technical Summary

Problems solved by technology

Although this transmission mode ensures the synchronous relative rotation of the rotors of the two rotor devices, the power of the two rotor devices is transmitted by the two transmission shafts respectively. Therefore, the two transmission shafts need to bear a relatively large torque. The longer the drive shaft, the greater the torque on the drive bearings

The production requirements of the transmission shaft are relatively high. After long-term use, the transmission shaft is prone to distortion, which affects the transmission effect

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