Use of Cad Tool for Design, Analysis and Development of Rotary Tillage Tool

Tillage is an operation performed on the field to obtain a desirable soil structure for perfect seedbed preparation for sowing seeds. Rotavator or Rotary tiller is a tillage machine Manufactured for preparing land by breaking the soil with the help of rotating blades. The development of Rotavator blades is an on-going process. The Rotary Tiller-s Blade is geometrically constrained with preparation of solid model in CAD-Software and the Analysis is done with actual field performance rating parameters by using CAD-Analysis software for the structural analysis. The energy constrained for the tillage tool operations with 37Hp and 45Hp power tractor and estimated forces acting at soil-tool interface. The resultant effect on Rotary Tiller-s Blade is obtained from Von-Mises stress, maximum principal stress, tensile stress and shear stress distribution plots. The present working model with tillage blade is analysed to new design constraints with change of its geometry for the maximum weed removal efficiency is suggested for the lab and field testing.