Aircraft arm and variable-pitch aircraft

Abstract

The invention relates to an aircraft arm and a variable-pitch aircraft. The aircraft arm comprises an arm plate, a driving part, a propeller assembly, a driving sleeve assembly and an actuating assembly; the driving part is arranged on the arm plate, and the driving part is provided with a driving shaft; the propeller assembly comprises a rotor head and a propeller, the rotor head is in driving connection with a driving shaft, and the propeller is rotationally arranged on the rotor head; the driving sleeve assembly is movably arranged on the driving shaft in a lifting manner and can drive thepropeller to rotate; and the actuating assembly is arranged on the arm plate and is in driving connection with the driving sleeve assembly. The propeller rotates around the axis of the propeller, so that a forward propeller posture can be quickly converted into a reverse propeller posture, stored rotating kinetic energy is converted into thrust in the direction away from the ground, and thereforethe purposes of further slowing down the falling speed of the variable-pitch aircraft and ensuring safe forced landing of the variable-pitch aircraft are achieved.

Description

technical field [0001] The invention relates to the technical field of flight control equipment, in particular to an aircraft arm and a pitch-variable aircraft. Background technique [0002] Due to the various operational capabilities such as high-altitude video shooting, monitoring, and security, the variable-pitch aircraft industry has developed rapidly and steadily in recent years, but the accompanying safety issues have also attracted more and more attention from the society. For example, because the operating environment of the pitch-changing aircraft is more and more complicated, especially when the pitch-changing aircraft is working in a dense urban area, once the motor of the pitch-changing aircraft breaks down (such as a mechanical failure), the pitch-changing aircraft will When the power is lost, under the action of its own gravity, the falling of the pitch-variable aircraft will produce a strong impact, which will easily cause the problem of falling and injuring p...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an aircraft arm and a pitch-variable aircraft, aiming at solving the problem that the forced landing capability, payload capability and endurance capability of the prior art cannot be balanced

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