Analysis and Design of Operating Parameters of Floor-Standing Jujube Pickup Device Based on Discrete Element Method

In view of the problem whereby floor-standing jujube pickup device designed by research group has a large resistance when comb teeth (CT) enter soil, strip brush can easily bend, and operation effect is poor. this paper, structural parameters CT bar in mechanical floor date-picking are determined theoretical analysis. EDEM software was used to establish discrete element simulation model soil–jujube device. According results, it that angle entering soil (ACT) change freely within 30–33° meet requirements. Through single-factor test on rate hilling quantity, value range working speed (CWS) 0.2–0.4 m/s, (DCS) 5–45 mm. Simulation field verification tests were carried out parameter range. It found CWS 0.2 m/s DCS 5 mm, rates 84.17% 91.23%, respectively, relative error largest but not more than 8%. The result shows method reliable. This study expected provide basis for subsequent design