The Analysis of Operative Parts of a Mini Rotary Cultivator.

Abstract

This study seeks to establish and analyze themathematical models of the plowing force and trajectory curve for tiller blades and cultivation blades of a rotary cultivator.Both blades are widely used in Word. To ensure good efficiency and uniform resistance of the plow to soil, the blade must be protected from intertwisting. The theoretical and calculated cutting angles are 85.88° and 85.10°, the edge-curve anglesare 55.00° and 56.18°. The rear of well designed plowing blade does not cause any friction with the soil. The curve of plowing shows that when the relief angle of the tiller blades is 25°, the turning and the throwing have good performance. When the relief angle of the cultivation blade is 10°, the impact force and the crashing force of the blade into the soil will be minimized during plowing.