Stepless amplitude-modulating driving mechanism for flapping wing
A technology of stepless amplitude modulation and drive mechanism, which is applied in helicopters, motor vehicles, mechanical equipment, etc., can solve the problems of inability to change the amplitude of flapping wing aircraft, and achieve the effects of aerodynamic efficiency, high gliding flight, and rapid response
Inactive Publication Date: 2013-06-05
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0006] In order to overcome the deficiency that the existing technology cannot complete the amplitude change during the flight of the flapping wing aircraft, the present invention provides a stepless amplitude modulation flapping wing drive mechanism, which realizes stepless adjustment of the flapping wing flapping amplitude through a simple and reliable mechanism, making the installation The micro-flapping-wing aircraft of the present invention can switch between multiple flight modes with different flapping amplitudes during the flight without paying the price of weight and size
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[0031] The invention includes a frame, a motor, a two-stage planetary gear mechanism and a connecting rod rocker mechanism.
[0032] The frame is an integral structure, made of hard metal material, the lower part is a cylinder, the diameter of the cylinder depends on the size of the movable inner ring gear of the two-stage planetary gear mechanism, and is usually not smaller than the outer diameter of the motor. A concentric motor installation hole is set on the rear end of the cylinder, and the upper part of the frame is a sheet-shaped bracket. hole. Above the bracket and the rear end of the cylinder
[0033]The motor is a DC brushless motor powered and driven by a polymer lithium battery. The motor is installed in the motor mounting hole on the rear side of the frame with screws, and the first-stage sun gear of the two-stage planetary gear mechanism is fixed on its pivot.
[0034] The two-stage planetary gear mechanism is composed of a first-stage sun gear, a first-stage ...
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The invention discloses a stepless amplitude-modulating driving mechanism for a flapping wing. The mechanism is composed of a frame, a motor, a two-stage planet gear mechanism and a connecting rod rocker mechanism, wherein a first-stage planet gear is used for deceleration; a second-stage planet gear is an eccentric gear and an eccentric upright column arranged on the eccentric gear is used for driving a connecting rod to drive a rocker to flutter up and down; a moveable annular gear of the two-stage planet gear mechanism can rotate relative to the frame; and a motion track of the eccentric upright column is changed by changing a position relationship between the moveable annular gear and the eccentric upright column, thereby changing a fluttering amplitude of the rocker. The stepless amplitude-modulating driving mechanism for the flapping wing has the advantages that the structure is compact, the weight is light, the adjusting scope of the fluttering amplitude is wide, the adjusting process is continuous, the control is simple, the response is quick, the fluttering speed and the fluttering amplitude can be adjusted according to different flight states of a flapping wing aircraft,higher pneumatic efficiency and energy efficiency are acquired, and the properties of various respects of the flapping wing aircraft are promoted.
Description
technical field [0001] The invention relates to a flapping-wing driving mechanism, which can be applied to a miniature flapping-wing aircraft. Background technique [0002] The micro flapping wing aircraft is a new concept aircraft that imitates the flight of birds. It has the advantages of small size, light weight, flexible use and high efficiency. If it is equipped with sensors and related data transmission and flight control systems, it will form a micro flapping wing unmanned aircraft. machine platform, it will have broad application prospects. Around this subject, various countries have developed controllable flapping-wing aircraft, among which the more successful ones are "Microbat" jointly developed by Aero Vironment of the United States and the University of California, and "Delfly" of Delft University in the Netherlands. However, these flapping-wing aircraft are due to The lack of aerodynamic efficiency and energy efficiency affects flight performance such as fligh...
Claims
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IPC IPC(8): B64C33/00B64D35/00F16H37/12
Inventor 王进宋笔锋王利光高广林杨文青李洋
Owner NORTHWESTERN POLYTECHNICAL UNIV