Design and Optimization of a Soil-Covering Device for a Corn No-Till Planter

Aiming to solve the problems of easy generation clods, poor soil fluidity and soil-covering effect in no-tillage seeding operation mode, this study has designed a device with soil-closing function for chisel-type furrow opener corn planter. Theoretical analysis design dividing plate disc were carried out, key parameters determined. Then, movement model was constructed Altair EDEM, spatial particle mobility analyzed. The numerical simulation method combined center plane composite response test scheme carry out test, optimal working parameter combination obtained. operating speed 6.35 km·h?1, inclination angle 60°, opening 70°, 40°. A comparative performance results showed that better than traditional terms consistency thickness stability seed position deviation. relative errors bin experiment optimization cover deviation 5.7% 11.1%, respectively. meets requirements covering under conditions provides basis research development suppression technology devices mode.