Abstract
Rotary tillers are sort of soil-working tools which are used to mix soil and operate by spinning the rotary blades. Due to its simple structure and high efficiency, the potential for their use nowadays is increasing day by day. The life of these blades depends upon the soil in which they are used and is around 80 h. Excessive loads and stresses cause wear of the blade tip or the cutting edges. Although the material used in the blade has sufficient wear resistance properties, the wear takes place because of geometry/profile of the blade. In this study, a mathematical model for optimization of design parameters of a rotary tiller blade in terms of specific energy consumption is used. A rotary tiller blade design was created in SolidWorks 2018 and static force and fatigue analysis for the designed blade was done in Ansys 2019.
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