A two-axis linkage propeller vector propulsion device for an airship

Abstract

The invention provides a two-axis linkage propeller vector propulsion device for an airship, which includes a support frame, a yaw mechanism part and a pitch mechanism part; relying on positioning screw holes arranged on the side plate of the support frame, the support frame is connected to the tail cabin of the airship Or the tail hard support structure is connected, so that the support frame is arranged at the tail of the airship; the yaw mechanism part is fixedly connected with the support frame, the pitch mechanism part is embedded in the yaw mechanism part, and is fixedly connected with the rotating inner frame of the yaw mechanism part. The propeller of the mechanism part rotates at a high speed synchronously with the propulsion motor to generate thrust, the yaw mechanism part is responsible for the azimuth deflection of the propeller, and the pitch mechanism part is responsible for the attitude adjustment of the propeller, which can simultaneously realize the auxiliary thrust, yaw and pitch of the airship; the vector propulsion device It adopts two-axis linkage, closed-loop control, precise and controllable rotation angle, which not only saves weight and solves installation problems, but also reduces flight risk and energy consumption, and successfully realizes the climb, level flight, fixed point and landing of the airship.

Description

technical field [0001] The invention relates to the technical field of airships. As an airship vector propulsion device, it realizes the functions of auxiliary propulsion, pitch and yaw of the airship, and satisfies the flight control requirements of the airship. Background technique [0002] An airship is a lighter-than-air aircraft. The airship is composed of an airbag made of polymer composite material, propulsion, control system, and payload. The airbag is filled with a buoyant gas with a density lower than that of air. The difference in density between the airbag and the airbag provides the buoyancy of the airship and balances the self-weight of part of the airship. For general low-altitude airships, the entire airship platform is of net weight, relying on the propulsion generated by the high-speed rotation of the propeller to complete lift-off and air flight. [0003] In the prior art, the active power of the airship is obtained by the main propeller, and the adjustme...

AI Technical Summary

Problems solved by technology

As the size of the airship increases, in order to realize the pitch and yaw functions, the size of the rudder surface will increase accordingly. The size is large and the weight increases significantly, which affects the implementation of the airship's flight strategy; and the weight of the airship tail is too concentrated, which is not conducive to the airship's flight. At the same time, it is a difficult problem to install large-scale rudder surfaces on the hull, which requires professional installation equipment and standard boat garages. Field operations are impossible and the flexibility is poor;

[0005] 2. Increased flight risk and energy consumption

In order to reduce weight, the rudder surface is generally made of non-metallic composite materials. The large-scale rudder surface has low wind resistance. When facing the wind, the rudder surface is subject to large forces and is easy to deform. It is a severe test for the strength and stiffness of the entire rudder surface. It increases the risk of damage to the rudder surface and reduces the reliability of flight; at the same time, in order to meet the pitch and yaw requirements of the airship, the large-scale rudder surface needs to consume more energy to resist the influence of the airflow, which creates energy problems

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