According to an existing multi-rotor craft, due to the fact that an engine shaft is located on one side of a craft body, balance weight needs to be increased to balance the center of the whole craft, and therefore the weight of the craft is increased, the payload of the craft is reduced, and controllability is poor. Aiming at the defects, the multi-rotor craft annular wheel power transmission system comprises a power source 1, a first output shaft 2, a second output shaft 3, a first gear 4, a second gear 5, a third gear 6, a fourth gear 7, an annular gear 8, an intermediate shaft 9, a second rotor wing 10 and a first rotor wing 11. The system has the advantages that an engine shaft can be coaxial with a propeller shaft, the purposes of being coaxial and having the same revolution number and opposite rotating directions are realized, so that the structure is simplified, the gravity center of a craft is located on the axis, trimming is easier to achieve, and then the payload of the craft is increased and controllability is improved; meanwhile, the weight of an unmanned aerial vehicle is reduced, and impact caused during landing is reduced.
Multi-rotor craft annular wheel power transmission system
2016-02-10
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
Three-wheel type toothed belt transmission system of multi-rotor craft
European Patent Office | 2016
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