Design and Experiment of the Buckwheat Hill-Drop Planter Hole Forming Device

The hole forming device is an important element of the buckwheat hill-drop planter, and its design level directly affects seeding quality planter. A with a duckbill structure widely used in planters for wheat, cotton, peanuts, etc. According to requirements operations, this study designs components device. It determined that upper jaw length 65 mm, duckbills number 10, pressure plate on spring side 90 opening size 8.79 effective time 0.1 s. Through co-simulation analysis discrete software EDEM (DEM-Solutions, Edinburgh, United Kingdom) multi-body dynamics RecurDyn (FunctionBay, Inc., Seongnam-si, South Korea), it measured when below rotation axis dibber wheel, compression 33.3 95–102.6 N, contact single soil 0.2 s at speed 40 r/min. Based results simulation analysis, large end diameter, small original wire diameter are 36 26 60 1.8 respectively. An experimental bench wheel planter was built, three springs 1.6 mm 2.0 were tested verify calculation results. show optimal mm. Finally, factor experiment carried out. 40–65 r/min, qualification rate, void rate damage ?85.3%, 0, <0.3%, This provides basis reference