Simulation Analysis Of Core Ploughshare Furrow Opener Based On EDEM

The Furrow opener is the key component of Seeder, which main role is to open a furrow. The quality of opener’s work directly affect the sowing quality. The traditional core ploughshare ype furrow opener is widely applied in the Northeast ridge area, but the width of opening and soil resistance is to high,which limit its use.Through the study of the structural characteristics of the core ploughshare type furrow opener, and determine the influencing factors of opener width, penetration angle, bevel angle, operation speed of, water content, and the different parameters core ploughshare Coulter model f multiple groups is established by SolidWorks software.Direct shear study on physical and mechanical properties of instrument on top soil tilization, using discrete element method (EDEM) to establish the cultivated soil model, using EDEM to simulate the designed a series of core ploughshare type furrow opener, a furrow opener ditching the smaller resistance are initially, the parameters are as follows:the penetration ngle is 50 degree, slope angle is 55 degrees, the width is 50mm.The entity opener can be designed by importing the model into 3D model printers. In the ndoor soil bin, the performance test of core ploughshare type furrow opener were conducted, working process by high-speed camera and force sensors to record and through groove type napper drawing groove type furrow opener energy loss calculation, etc.. Using the Multiple stepwise regression analysis of uniform design method analysis The regression equation petween be ditching performance and factors:In the formula x1、x2、x3、x4、x5 representing the opener width, penetration angle, pevel angle, velocity and water content of experimental factors Field test of the optimal opener was carried out, the results showed that compared with the soil trough and the discrete element simulation results, has certain correlation, and the same rules. To verify the correctness of the simulation model parameters.This paper improved core ploughshare type furrow opener by applying modern discrete element method optimization, and the kinematics and dynamics simulation analysis on the opener by discrete element simulation software, can shorten design opener and improved time, reduce the dependence on the physical prototype, and the cost, to meet the current requirements of seeding and fertilization. Optimization of a group of more suitable for the opener in the niddle area of Jilin province; verify feasibility of discrete element method in the study of soil mechanical interaction, and provides a new idea for the design of agricultural machinery.