The invention discloses a bar transfer device with two rollers. In the invention, an upper synchronizingshaft and a lower synchronizingshaft are arranged on a machine frame;
一种双滚轮棒料移送装置，是在机架的上面安装上上同步轴与下同步轴；
2
The transmission shaft gear is directly meshed with the tension roll synchronizing gear to reduce measuring errors;
本发明传动轴齿轮与张力辊同步齿轮直接啮合，减少了测量误 差；
3
On the basis of machinery system dynamics, the dynamics equations of balanced elliptical shakers excited by two-shaft self-synchronizing and by three-shaft self-synchronizing are established.