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Coaxial propeller folding mechanism, coaxial unmanned aerial vehicle and propeller unfolding and folding control method

A control method and unmanned aerial vehicle technology, applied in the field of unmanned aerial vehicles, can solve the problems such as the difficulty in realizing the autonomous deployment and flight of unmanned aerial vehicles, inconvenient portability, storage and deployment, and reduced operating efficiency

Pending Publication Date: 2021-10-29
珠海璇玑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is precisely because of the large diameter of the propeller of the coaxial rotor UAV that it is inconvenient to carry, store and deploy.
[0003] The existing coaxial UAV, after arriving at the job site, requires ground personnel to manually install or open the folding propeller mechanism, and adjust the UAV to a suitable working state before starting the operation. The UAV recovery process must be repeated again. Seriously reduced work efficiency
At the same time, such a working method requires the participation of ground personnel, and it is difficult to realize the autonomous deployment and flight of drones.

Method used

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  • Coaxial propeller folding mechanism, coaxial unmanned aerial vehicle and propeller unfolding and folding control method
  • Coaxial propeller folding mechanism, coaxial unmanned aerial vehicle and propeller unfolding and folding control method
  • Coaxial propeller folding mechanism, coaxial unmanned aerial vehicle and propeller unfolding and folding control method

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Embodiment 1

[0036] see Figure 1 to Figure 4, in the embodiment of the present application, a coaxial unmanned aerial vehicle 1000, specifically a dual-rotor coaxial unmanned aerial vehicle 1000, that is, the coaxial folding paddle mechanism 100 includes two groups of rotating units. For the convenience of understanding, the two groups of rotating The units are respectively denoted as the upper rotation unit 110 and the lower rotation unit 120, and the components in the rotation unit are correspondingly distinguished by "upper" and "lower".

[0037] Specifically, see figure 1 and figure 2 In this embodiment, the coaxial UAV 1000 includes a host 200 and a coaxial folding mechanism 100. The coaxial folding mechanism 100 is installed on the host 200, and the coaxial folding mechanism 100 can be installed on the host 200 according to the specific conditions of the host 200. Of course, each rotating unit of the coaxial paddle folding mechanism 100 can also be installed at different position...

Embodiment 2

[0051] Based on the same inventive concept, this embodiment provides a propeller opening and folding control method applied to a coaxial unmanned aerial vehicle 1000, and the method can be applied to a dual-rotor coaxial unmanned aerial vehicle or a multi-rotor coaxial unmanned aerial vehicle. Taking the coaxial unmanned aerial vehicle 1000 applied in Embodiment 1 as an example, the propeller folding control method of this embodiment is introduced in detail:

[0052] The propeller opening and folding control method includes a propeller opening control method and a folding propeller control method. Both the propeller opening control method and the folding propeller control method are controlled by the flight controller of the coaxial UAV 1000, and are carried out automatically without the participation of ground personnel or Auxiliary.

[0053] Open paddle control methods include:

[0054] The flight controller controls the rotation of the rotary drive device. The rotary drive...

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Abstract

The invention discloses a coaxial propeller folding mechanism, a coaxial unmanned aerial vehicle and a propeller unfolding and folding control method. The technical problem that in a coaxial unmanned aerial vehicle in the prior art, a folding propeller mechanism needs to be manually installed or unfolded by ground personnel is solved. The coaxial propeller folding mechanism comprises more than two groups of rotating units which are sequentially arranged from top to bottom, and the more than two groups of rotating units are coaxially arranged; each rotating unit comprises a rotating driving device, a propeller hub, a propeller clamp and a rotor wing blade, the rotating center of the propeller hub is fixedly connected with the torque output end of the rotating driving device, and the rotor wing blade is hinged to the free end of the propeller hub through the propeller clamp; and in the more than two groups of rotating units, the length from the rotating center to the free end of the propeller hub is sequentially reduced from top to bottom. The rotor blade can be automatically and repeatedly opened and closed, and after the rotor blade positioned at the upper part is folded, a space for folding and storing the rotor blade at the lower part can be reserved, so that the two rotors are ensured not to interfere with each other.

Description

technical field [0001] The application belongs to the technical field of unmanned aerial vehicles, and in particular relates to a coaxial propeller folding mechanism, a coaxial unmanned aerial vehicle and a propeller opening and folding control method. Background technique [0002] With the continuous development of drone control technology, more and more types of drones have been used in the industrial field. Compared with traditional fixed-wing UAVs, rotary-wing UAVs can realize the vertical take-off and landing function with a simple mechanism, have low requirements on the work site, are less affected by the space environment, and are convenient for rapid deployment operations. Compared with common quad-rotor UAVs, coaxial-rotor UAVs have larger propellers and higher aerodynamic efficiency, so UAVs have better mountability and endurance. However, it is precisely because of the large diameter of the coaxial rotor UAV propeller that it is inconvenient to carry, store and d...

Claims

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Application Information

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IPC IPC(8): B64C11/28B64C27/10
CPCB64C11/28B64C27/10
Inventor 李健刘玉华
Owner 珠海璇玑科技有限公司
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