Studies on Combined Drawn and Rotating Tillage Implements (II)

Abstract

The power requirement of tillage were measured by using the simple inclined tillage tool or the vertical tillage tool attached at the front of rotary tilling device of walking tractor. The characteristcs of the combination tillage were summarized as follows:
(1) The drafts of drawn tillage tools 60-120kg.
(2) The torque of rotary shaft in the combination tillage was about 0.5-0.6 times as large as that in the rotary tillage.
(3) The torque of driving wheel shaft in the combination tillage was about 0.9-0.95 times as large as that in the tillage using only the drawn tillage tool because the tractor was pushed by forward component of resistance force of tillage.
(4) The dynamic weight on the driving wheel in the combination tillage using the vertical tillage tool was ligher than the static weight on it, while that using the simple inclined tillage tool was heavier.
(5) The total power requirement in the combination tillage was about 0.6-0.8 times as large as that in the rotary tillage.
(6) The pulverizing effect in the combination tillage was generally bar better than that in the rotary tillage.