免耕播种机新型锯齿防堵装置防堵机理的研究

针对免耕播种机的堵塞问题，设计了一种免耕播种机新型锯齿防堵装置，分析了该装置的防堵机理；通过对锯齿圆盘切刀和断秆的运动学分析，建立了求解各运动参数的数学方程，确定了影响该装置抛撒性能的主要因素。理论分析和土槽试验结果表明，该锯齿防堵装置具有良好的防堵性能。

Study on anti-blocking mechanism of the sawtooth anti-blocking component for no-tillage planter

To counter the blocking issue of no-tillage planter, a new sawtooth anti-blocking compoent was developed, and anti-blocking mechanism was investigated. The kinematics of the straw and sawtooth were analyzed, and mathematics equations of some movement parameters were set up, and main factors of effecting throwing characteristics were determined. Theory analysis and experimental results in the soil bin device showed that the sawtooth anti-blocking compoent has the better anti-blocking characteristics, and it could be put into practice as anti-blocking compoent for no-tillage planter.