| 摘要 |
The present invention relates to a variable pitch type unmanned air vehicle using a belt structure, which can drive for long time using a gasoline engine with a cooling system, or a driving motor. The variable pitch type unmanned air vehicle using the belt structure includes: an engine unit including a driving unit providing a rotation force for flight of an unmanned air vehicle, a fan driving unit driving a cooling fan cooling each cylinder of the driving unit, and a driving control unit controlling the driving of the engine unit; a thrust control unit including a transfer shaft providing a predetermined rotation force by receiving the rotation force from the driving unit, a power transfer member connecting the driving unit and the transfer shaft, and at least two rotation force providing units connected to the outer circumference of the transfer shaft and individually providing the rotation force of the transfer shaft to a rotor unit; the rotor unit rotating a propeller of the unmanned air vehicle using the rotation force transferred by the thrust control unit and controlling a pitch angle of the propeller; and an air vehicle main body comprising an engine main body unit having the engine unit and the lower surface of the rotor unit, and an upper main body unit connected to the upper part of the engine main body unit and accommodating the thrust control unit and the rotor unit. |
