Vector propelling device for two-shaft linkage propeller for airship

Abstract

The invention provides a vector propelling device for a two-shaft linkage propeller for an airship. The vector propelling device comprises an outer supporting frame, a yaw mechanism part and a pitching mechanism part. The outer supporting frame and a tail cabin or a hard tail supporting structure of the airship are connected depending on locating screw holes distributed in a side board of the outer supporting frame, so that the outer supporting frame is arranged at the tail portion of the airship. The yaw mechanism part and the outer supporting frame are fixedly connected. The pitching mechanism part is embedded in the yaw mechanism part to be fixedly connected with an inner rotary frame of the yaw mechanism part. A propeller of the pitching mechanism part rotates at a high speed synchronously along with a propelling motor, thrust is generated, the yaw mechanism part takes charge of the orientation yaw of the propeller, the pitching mechanism part takes charge of the posture adjustment of the propeller, and auxiliary propelling, yaw and pitching of the airship can be achieved synchronously. Two-shaft linkage is adopted in the vector propelling device, closed-loop control is conducted, the rotation angle is accurately controlled, the weight is reduced, an installation problem is solved, the flight risks and energy consumption are reduced, and climbing, flat flight, fixed-point flight and landing of the airship are achieved successfully.

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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