Propeller hub, rotor wing and unmanned aerial vehicle

By designing the structure of the oscillating shaft and installation position in the hub of the drone, the pitch complementarity of the blades is solved, and the stability problems caused by the lift difference in the drone during flight are improved, and the flight stability and lift balance are improved.

CN120191540APending Publication Date: 2025-06-24深圳市宝安区汉翔攝影科技工作室
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Patent Information

Application Number
CN202510404510.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2025-06-24

AI Technical Summary

Technical Problem

Due to the design of propellers, existing drones are prone to lift poor during flight, which in turn affects flight stability.

Method used

A hub is designed, which includes a body with a swing shaft, and the mounting position is arranged on both sides of the swing shaft to install the blades. Through the swing of the hub about the swing shaft, the pitch of the blades is complementary and the lift balance error generated by the rotor is automatically adapted to the rotor.

Benefits of technology

By swinging, consuming the impulse generated by lift difference, reducing vibration, improving flight stability, and achieving lift complementarity, improving flight stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a propeller hub, a rotor wing and an unmanned aerial vehicle. The propeller hub comprises a body, the body is provided with a swinging shaft and can swing around the swinging shaft, the body comprises at least two mounting positions, the at least two mounting positions are arranged on the two sides of the swinging shaft respectively and used for mounting blades, and the blades are arranged on the mounting positions in the rotating direction of the body with the rotating center of the body as the circle center. The rotation angle R from the installation position to the swing shaft is larger than or equal to 30 degrees and smaller than or equal to 60 degrees. The propeller hub provided by the embodiment of the invention swings in a floating manner, actively corrects the pitch attack angle, realizes lifting force complementation and reduces vibration, so that the flight stability is improved, the service life of parts is prolonged, the operation burden of a flight controller is reduced, and the noise is reduced.
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Citation Information

Patent Citations

  • Propeller hub for mounting helicopter tail rotor

    CN217456348U

  • Fixed pitch propeller clamp mechanism, rotor wing and aircraft

    CN218142110U

  • Propeller hub, rotor wing and unmanned aerial vehicle

    CN223822038U

  • Hingeless helicopter rotor with elastic gimbal hub

    US4323332A