Biomimetic mechanical fish tail advancing mechanism of portion

The utility model provides a biomimetic mechanical fish tail advancing mechanism of portion. It mainly is consecutive by motor, conical gear mechanism, crank and rocker mechanism and tail fin. Conical gear mechanism plays and slows down and change the effect that passes the power direction, and crank and rocker mechanism realizes changing whole all rotary motion into reciprocal swing. When the motor moves, will drive crank and rocker mechanism, imitate the swing process of fish tail to realize forward propulsion's effect. Provided is a beneficial effect: can pass through the swing process of the characteristic imitate fish tail portion of mechanism, simple structure, control is convenient, the good reliability. 种仿生机械鱼尾部推进机构。它主要是由电机、圆锥齿轮机构、曲柄摇杆机构和尾鳍依次相连。圆锥齿轮机构起到减速和改变传力方向的作用，曲柄摇杆机构实现将整周回转运动转变为往复摆动。当电机运动时，就会带动曲柄摇杆机构，模仿鱼尾的摆动过程，从而实现向前推进的效果。本专利的有益效果：可以通过机构的特性模仿鱼尾部的摆动过程，结构简单，控制方便，可靠性强。