Co-rotating rotor mechanism provided with co-shaft double propellers and aircraft using co-rotating rotor mechanism

Abstract

A co-rotating rotor mechanism provided with co-shaft double propellers comprises an upper propeller, a lower propeller, a rotor shaft and a rotating component, wherein the upper propeller and the lower propeller are fixed at the upper end and the lower end of the rotor shaft respectively; the rotor shaft is fixedly sleeved with the rotating component which is located between the upper propeller and the lower propeller; the upper propeller is a variable-pitch propeller, and pitch variation of the upper propeller is controlled by a pitch varying assembly. The invention further provides an aircraft. The aircraft has the advantages that the structure is simplified, own weight is reduced, lift and loading capacity are improved, and agility and stability are improved.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a coaxial dual propeller co-rotating wing mechanism and an aircraft thereof. Background technique [0002] Existing multi-rotor aircraft generally use a single-blade system. Due to the angular force, the arm shakes a lot. The disadvantage is that it needs to use a powerful engine, which not only increases the weight of the aircraft, but also increases the production cost of the aircraft. [0003] Moreover, in the existing multi-rotor aircraft, each rotor is equipped with a separate driving motor, resulting in differences in its rotating speed, which affects the reliability of flight, and the failure rate of multi-motor drives is also relatively high, which affects the safety of flight. [0004] Multi-rotor aircraft has the advantages of flexible maneuverability, fast response, unmanned flight, and low operation requirements. It not only shows its talents in the military field, but also ha...

AI Technical Summary

Problems solved by technology

[0002] Existing multi-rotor aircraft generally use a single-blade system. Due to the angular force, the arm shakes a lot. The disadvantage is that it needs to use a powerful engine, which not only increases the weight of the aircraft, but also increases the production cost of the aircraft.

However, the existing pitch-changing systems of multi-rotor aircraft generally use a single-blade pitch-changing system, and its disadvantage is that it needs to use a large-power engine, which not only increases the weight of the aircraft, but also increases the production cost of the aircraft, and the ascent speed is slow.

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