Abstract
Vibratory tillage tools are classified as either subsoilers or plows, according to the mechanism of soil cutting. Each can be divided into 4 types, according to the cutting directional angle β, such as back to forward motion, up and down motion, a mixed motion of back to forward and up and down is used when the cutting directional angle β is greater than 0°, and a mixed motion of back to forward and up to down is used when the cutting directional angle β is smaller than 0°.
The purpose of this study is to solve some problems of the vibratory soil cutting of subsoilers. In this report, by observing the behavior of instantaneous soil cutting force, the mechanism of draft force reduction on each 4 types were explained and some pertinent imformation regarding the optimal cutting directional angle β which is one of the most important parameters of vibrating subsoiler were obtained. At the same time, a new factor of draft force reduction on vibratory subsoiler was discovered.
