Abstract
Aiming at the poor soil crushing capacity and low operating efficiency of the Ophiopogon harvester, reference to potato, panax notoginseng and other block root excavation device. Based on the soil crushing theory, mechanical analysis of the excavation shovel was performed, and the multi-order excavation shovel of Ophiopogon japonicas harvester was designed. Through ANSYS Workbench Mechanical properties analysis of the excavation shovel, obtained the inclination stress-strain cloud map of soil inlet angle and shovel surface. Combined with the stress-strain results, production suggestions were proposed. Binary regression analysis, response surface analysis and reoptimization design of mining parameters were conducted through field test and Design-Expert 12 software. Test results show that when the inlet angle was 25 °, inclination angle was 170 °, tool forward speed was 0.35m/s, Harvest rate was 98.37% and damage rate was 1.35%, ophiopogon japonicas Harvest worked efficiency. Meet the relevant operating requirements of Ophiopogon japonicus harvester.
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