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Oil-drive variable-pitch quad-rotor unmanned aerial vehicle

A four-rotor UAV and rotor technology, applied in the aviation field, can solve the problems of poor endurance performance and reduced load capacity, and achieve the effect of high use and maintenance costs and high maintenance technical threshold

Active Publication Date: 2016-01-27
维拓(南京)智能技术有限公司
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Problems solved by technology

However, due to the limitation of battery energy density, its flight time is generally only 10-30 minutes, and the way of increasing its flight time by simply increasing the number of batteries will greatly reduce its load capacity
Therefore, compared with oil-powered helicopters, the biggest problem with electric multi-rotors (including electric helicopters) is poor endurance performance

Method used

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Embodiment Construction

[0027] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0028] see figure 1 — Figure 11 , in order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a kind of four-rotor unmanned aerial vehicle with oil-driven distance variable, which solves the problems of small load and short flight time of conventional electric multi-rotors (or electric helicopters), and the problems of conventional helicopters due to The complexity of the mechanical structure, structural dynamics, flight dynamics, aerodynamics, and flight control system brings about problems such as high procurement, use, and maintenance costs, and high technical thresholds for use and maintenance.

[0029] see Figure 6...

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Abstract

The invention discloses an oil-drive variable-pitch quad-rotor unmanned aerial vehicle which comprises a power-transmission system, a rotor-operation system and a rack system. Both the rotor-operation system and the power-transmission system are fixed to the rack system. The oil-drive variable-pitch quad-rotor unmanned aerial vehicle mainly solves the problems that a conventional electric multi-rotor vehicle is poor in wind resistance and the like, the load is small, and the flight time is short and the problems that purchasing, using and maintaining cost is high and the use and maintenance technical doorsill is high due to complexity of the mechanical structure, the structural dynamic characteristic, the flight dynamic characteristic, the aerodynamic characteristic and a flight control system of a conventional helicopter.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to an oil-powered variable pitch four-rotor drone. Background technique [0002] Common vertical take-off and landing drones mainly include oil-powered helicopters (such as figure 1 shown), electric helicopters (such as figure 2 shown) and electric multi-rotors (such as Figure 4 shown) and other types. [0003] Such as figure 1 and figure 2 Conventional helicopters can be divided into oil-powered helicopters and electric helicopters according to different power systems. Their mechanical systems mainly include power subsystems, transmission subsystems, control subsystems, and rotor subsystems. control subsystem. The transmission subsystem usually includes complex closed gear trains and sealing devices, the structure is complex, the manufacturing cost is high, and the assembly process requires high requirements. The most important part of the steering subsystem is the auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/12B64C27/59B64D35/00B64C27/32
Inventor 胡奉言
Owner 维拓(南京)智能技术有限公司
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