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Variable pitch rotor device and multi-rotor aircraft

A variable pitch and rotor technology, applied in the field of aircraft, can solve problems such as reduced reliability and complex structure

Active Publication Date: 2018-01-02
HANGZHOU ZERO ZERO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a variable-pitch rotor device, aiming to solve the technical problems in the prior art that the active variable-pitch rotor device requires a special servo device and a linkage mechanism to cooperate, resulting in complex structure and reduced reliability

Method used

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  • Variable pitch rotor device and multi-rotor aircraft
  • Variable pitch rotor device and multi-rotor aircraft

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] Please refer to Figure 1 to Figure 9 , the variable pitch rotor device 1 provided by the embodiment of the present invention includes:

[0049] a power unit 10 for providing power and having an output shaft 12;

[0050] at least two propellers 20;

[0051] The transmission assembly 30 is connected between the power device 10 and each of the propellers 20 and has at least two rotating shafts 32 that form an angle with the output shaft 12. The transmission assembly 30 and the output shaft 12 Rotationally connected and flexibly connected with the corresponding propeller 20 through each of the...

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Abstract

The present invention relates to the technical field of aircrafts, and provides a variable pitch rotorcraft and multirotor. The variable pitch rotorcraft comprises: a power unit having an output axis, at least two propellers and a transmission component comprising at least two rotating axes forming an included angle with the output axis. The power unit accelerates or decelerates, on the basis of rotation at a uniform speed, the rotation speed, and drives, via the transmission component, respective propellers to perform a deflection movement about the rotation axes, such that an included angle between an airfoil chord of the propeller and a rotation plane of the propeller is changed. The variable pitch rotorcraft accelerates or decelerates on the basis of rotation at a uniform speed, and therefore, each propeller is shifted with respect to the transmission component due to inertia, such that an angle of attack of said propeller is changed to alter a current lift of said propeller. The variable pitch rotorcraft has a simple structure and high reliability.

Description

technical field [0001] The invention belongs to the technical field of aircraft, and in particular relates to a variable-pitch rotor device and a multi-rotor aircraft provided with the variable-pitch rotor device. Background technique [0002] Today, multi-rotor aircraft have been widely used in various industries, such as aerial photography, power line inspection, forest fire prevention, drone express delivery, anti-terrorism investigation, model toys and other fields. In order to make the multi-rotor aircraft more widely used, it is necessary to improve the flight performance of the multi-rotor aircraft itself. Since most of the current multi-rotor aircraft have incomplete control systems, their wind resistance and maneuverability are limited, and they are not suitable for harsh working environments. Therefore, the traditional multi-rotor aircraft is just difficult to perform in some environments such as strong winds, gusts and high maneuverability requirements for the ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C27/08B64C11/44
CPCB64C27/57
Inventor 胡家祺
Owner HANGZHOU ZERO ZERO TECH CO LTD
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