Simulation Analysis and Test on the Effect of Picking Up the Residual Film of Typical Film Lifting Parts

The agronomic technology of whole plastic-film mulching on double ridges has been widely promoted in the arid region northwest China, which caused serious residual film pollution field. Mechanized collecting is main way, but this way more complicated. To prove effect typical film-lifting parts performance by a numerical simulation method, further evaluate and select working suitable for improve efficiency, virtual needs to be established. In study, ridge with flexible, deformable, mulching, interaction model was developed using discrete element method (DEM). used simulate operation process third-order shovel, hug plate elastic teeth parts. Furthermore, resistance, seed bed disturbance form under different conditions were analyzed. results show that: from strong weak parts; crushing soil teeth, shovel plate, median value horizontal force fluctuation range increased, increase trend large small (the 5250 N, 6250 N 7750 N; 3250 3500 4000 are 4150 4550 5450 N). comparative analysis that residual-film ridges. Field trials carried out verify operational effectiveness morphological changes recovered simulated during plate-type machine, distribution surface properties after basically consistent results, pick-up rate reaches 95.20%, established reliable. research can provide reference development full duopoly furrow-mechanized film-collecting agricultural equipment China.