Having analysis on the working principle of the whole tractor system including diesel engine and rototiller, we worked out the way of how to eliminate the impotence of tractor with rototiller.

• 摘要通过对拖拉机、发动机和旋耕机整个系统工作原理分析，找出了解决拖拉机带旋耕机“无力”问题的方法。