Plate flapping wing lift device with stepper motors

Abstract

The invention discloses a plate flapping wing lift device with stepper motors, and belongs to the technical field of aviation. The plate flapping wing lift device comprises a power supply, a controller, a rack, a main shaft and two or three or four wing rotors, wherein the wing rotors are evenly arranged on the periphery of the main shaft and are different only in wing installation angle; the controller is used for controlling all stepper motors to rotate and stop; the main shaft is arranged on the rack through the bearing, and is horizontally arranged in a longitudinal manner; each wing rotor comprises a rotary arm, the stepper motors and the wings; one end of the rotary arm is fixedly connected with the front end of the main shaft vertically; the other end of the rotary arm is fixedly connected with a housing of each stepper motor; two ends of an output shaft of each stepper motor are respectively connected with the front part of each wing and the rear part of each wing; the rotary arm is vertical to the output shaft of each stepper motor; the output shaft of each stepper motor is parallel to the main shaft; and the main shaft, the rotary arm and the output shafts of the stepper motors are coplanar. The attack angles of the wings when the device swoops are always 90 degrees; the attack angles when the wings move upwards are always 0 degree; the device can generate relatively large lift force; and the efficiency for generating the lift force is relatively high.

Description

technical field [0001] The utility model relates to a flat-plate flapping-wing lift device with a stepping motor, which belongs to the field of aviation technology, and in particular relates to a flapping-wing lift generating device. Background technique [0002] The flapping wing of the traditional linkage machine generates lift by stirring up and down. When the flapping wing rises, the resistance is relatively large, the efficiency is low, and the lift that can be generated is limited, so it is difficult to achieve heavy-duty flight; the Chinese patent publication with the patent number ZL200910073435.8 A flapping-wing lift generating device that relies on the flapping-wing lifting mechanism to reset the flapping-wings has high efficiency, but the transmission and control systems are relatively complicated, and the continuous rotating power cannot directly drive the flapping-wing mechanism. The number of flapping-wings Due to its structural limitation, when using a set of ...

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Problems solved by technology

[0002] The flapping wing of the traditional linkage machine generates lift by stirring up and down. When the flapping wing rises, the resistance is relatively large, the efficiency is low, and the lift that can be generated is limited, so it is difficult to achieve heavy-duty flight; the Chinese patent publication with the patent number ZL200910073435.8 A flapping-wing lift generating device that relies on the flapping-wing lifting mechanism to reset the flapping-wings has high efficiency, but the transmission and control systems are relatively complicated, and the continuous rotating power cannot directly drive the flapping-wing mechanism. The number of flapping-wings Due to its structural limitation, when using a set of devices, it cannot continuously generate lift, and the stability is not high; the Chinese patent No. ZL200710071871.2 discloses a sliding wing type lift generating device, although it can directly drive the wing with continuous rotating power However, the number of fins is limited by their axial size, and the continuity of the lift generated is not good. In the existing flapping device of the half-turn mechanism, only one position of the flapping wing is in the horizontal position during the flapping process of the fins. There is an included angle between the blade and the horizontal plane, and the lift force generated is the vertical component of the force of the blade, so the efficiency of the half-turn mechanism flapping wing to generate lift is not high

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