Novel variable wing unmanned aerial vehicle

Abstract

The invention relates to the field of unmanned aerial vehicles, in particular to a novel variable-wing unmanned aerial vehicle. The unmanned aerial vehicle comprises a base assembly, a rotor mechanism, a deformation mechanism and a wing mechanism, the deformation mechanism comprises two sets of deformation assemblies symmetrically arranged about the base assembly, and the wing mechanism comprises two sets of wing assemblies symmetrically arranged about the base assembly; the deformation assembly comprises a deformation wing, a base, a sliding block and a deformation connecting rod; the wing assembly comprises a main wing, a connecting rod a, a connecting rod b and a connecting rod c; the rotor wing mechanism comprises four groups of rotor wing assemblies; the base assembly comprises a deformation steering engine used for driving a base to rotate so as to enable the deformation assembly and the wing assembly to be switched between a folded state and an unfolded state, in the folded state, the rotor wing mechanisms are arranged upwards, and in the unfolded state, the rotor wing mechanisms are arranged forwards. According to the invention, power and energy can be fully utilized to improve endurance.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a novel variable-wing unmanned aerial vehicle. Background technique [0002] As we all know, the quadrotor UAV has a four-axis symmetrical propeller layout, which can realize the vertical take-off and landing of the UAV, thereby greatly reducing the UAV's demand for take-off and landing sites. However, since the UAV's lift mainly comes from four The pulling force provided by each propeller leads to relatively low power efficiency of the UAV, which limits the payload capacity and endurance of the UAV. On the other hand, the fixed-wing UAV provides lift through the pressure difference between the upper and lower wings, which has a large power-to-effect ratio, so that the UAV has a large load capacity and endurance, but because the fixed-wing UAV needs Only a certain initial velocity can form lift, so a long runway is needed to obtain the initial velocity. The requirements f...

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Problems solved by technology

However, although this superposition and combination method achieves the expected function, it also increases the weight of the UAV system and cannot greatly improve the performance of the UAV.

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