Fixed-wing propeller aircraft and its drive

Abstract

The invention discloses a driving device of a fixed wing propeller-driven aircraft. The driving device comprises a tail rod, a propeller and a driving mechanism, wherein the axial direction of the propeller and the axial direction of the tail rod are on the same straight line, the driving mechanism is arranged on the tail rod, the axial direction of the power output end of the driving mechanism and the axial direction of the tail rod are located on the same straight line, and the power output end of the driving mechanism is fixedly connected with the propeller. Thrust lines generated by the driving device can coincide with the center of gravity line of an unmanned aerial vehicle.

Description

Technical field [0001] The present invention relates to the field of aviation technology, in particular to a fixed-wing propeller aircraft and a driving device thereof, wherein the driving device is mounted on the waist of the fixed-wing propeller aircraft. Background technique [0002] Fixed-wing UAV is a kind of fixed-wing propeller aircraft. Fixed-wing UAV is an unmanned aircraft driven by power. It is usually composed of airframe, power unit, flight control and management equipment, launch and recovery equipment, etc., which can be remotely controlled or automatically flown, and can be used for one-time use, recycling, and multiple use. It is one of today's high-tech equipment, widely used in battlefield reconnaissance, electronic countermeasures, post-war damage assessment, ground attacks and many other military operations. It is an indispensable equipment for information warfare. In the civil field, it has been widely used in fields such as artificial precipitation enhance...

AI Technical Summary

Problems solved by technology

The disadvantage is: the driving system conflicts with FPV (first person primary vision), that is, the most reasonable installation position of the camera is on the head of the fuselage, but the installation position of the camera is occupied by the driving system, and the installation position of the camera is at the center of the fuselage. The part behind the head causes the camera to be interfered by the drive system when collecting images, which reduces the quality of image collection

Disadvantages: The center of gravity of the aircraft is at the rear, resulting in the need for excess weight to balance the center of gravity, increasing the take-off weight and shortening the flight range

For example, the notification number is CN203612198, and the name is a utility model patent for a front-pull and rear-push multifunctional fixed-wing UAV. The power system of this UAV is arranged as follows: one of the power systems is placed high on the upper part of the fuselage , this method overcomes the problem that the power front pull power system affects the installation of the camera, and also avoids the problem that the power push back power system requires extra weight to balance the center of gravity and affects the opening of the parachute. However, the waist push power system is still There are the following defects: when the power system is placed high on the upper part of the fuselage, the push center line and the center of gravity line of the power system are misaligned (such as Figure 17 As shown), it is necessary to increase the wing elevation angle or change the thrust line to balance the center of gravity of the UAV, so as to ensure that the anti-UAV is straight and stable

However, the problem with the waist-push power system is that the thrust line of the power system is misaligned with the center of gravity of the fuselage. If this problem is solved, many problems of the UAV will be solved. Unfortunately, according to According to the applicant's knowledge of the development history of UAVs and the applicant's inquiries about relevant materials, no power waist-thrust fixed-wing UAVs have been found so far that the thrust line of the power system coincides with the center of gravity line. Therefore, this is also a problem that those skilled in the art have always wanted to solve but has not been solved

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