The invention provides a flapping wing mechanism capable of realizing automatic amplitude change, which at least comprises a machine body, an input shaft, an output end and a restraint system, and ischaracterized in that the input shaft is at least formed by connecting a component A and a component B through a kinematic pair or a two-degree-of-freedom coupling, and the component B has a swing orradial translation degree of freedom relative to the component A; the restraint system at least comprises a front end and a tail end, the front end of the restraint system is connected with the machine body, the tail end of the restraint system is connected with the component B through a revolute pair, the component B is a dynamic unbalance component, the component B generates swing torque or radial force under the action of centrifugal force during rotation, and the component B drives the output end to rotate under the drive of the input shaft. Furthermore, the output end drives the flappingwing connected to the output end to revolve, and the rotating radius or amplitude of the flapping wing changes along with the change of the rotating speed and the environmental fluid resistance, so that automatic amplitude change of the flapping wing is achieved, and good matching of the input rotating speed and the output amplitude is achieved.
本发明提出一种可实现振幅自动变化的振翅机构,至少包括:机身,输入轴,输出端,约束系统,其特征是:输入轴至少由A构件与B构件通过运动副或两自由度连轴器的联接构成,B相对A构件有摆动或径向平动自由度;约束系统至少包括前端及末端,约束系统的前端与机身联接,约束系统的末端通过转动副与B构件相联接,B构件为动不平衡构件,在转动时由于离心力的作用B构件产生摆动力矩或径向力,在输入轴的驱动下,B构件带动输出端转动,进一步的,输出端带动联接在输出端的振翅公转,且振翅的转动半径或振幅随转动速度及环境流体阻力的变化而变化,从而实现振翅振幅自动变化,达到输入转速与输出振幅的良好匹配。
Flapping wing mechanism capable of realizing automatic amplitude change
一种可实现振幅自动变化的振翅机构
2021-03-05
Patent
Electronic Resource
Chinese
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