基于EDEM的马铃薯收获机分离输送装置仿真分析

Simulation Analysis of Separating and Conveying Device of Potato Harvester Based on EDEM

为了实现提高马铃薯收获效率并减少其机械损伤,关键在于优化滚筒式马铃薯收获机分离输送装置的运动参数,包括滚筒筛转速、切削角度和行进速度。为此,建立了土壤颗粒的仿真模型、马铃薯颗粒的仿真模型和马铃薯收获机分离输送装置的仿真模型,通过EDEM软件仿真土壤和马铃薯颗粒的分离输送试验并收集数据;运用Design-expert软件来分析仿真得到的数据,可知3项运动参数都对分离输送装置的输送率和分离时间有不同的影响。结果表明:影响最大的是切削角度,最弱的是滚筒筛转速,行进速度的影响适中。

In order to improve the efficiency of potato harvesting and reduce its mechanical damage, the key is to optimize the movement parameters of the drum-type potato harvester’s separation and conveying device. The movement parameters include: drum screen speed, cutting angle and travel speed, and establish a simulation model of soil particles. The simulation model of potato pellets and the simulation model of the separation conveyor of the potato harvester. Use EDEM software to simulate the separation and transportation test of soil and potato particles and collect data;use design-expert software to analyze the data obtained from the simulation. According to the data, it can be seen that the three motion parameters have different effects on the transportation rate and separation time of the separation conveyor. Among them, the cutting angle is the most influential, the rotating speed of the trommel is the weakest, and the influence of the traveling speed is moderate.