元胡采收机减阻旋挖铲设计及其作业过程的离散元仿真

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中图分类号：S225.7 文献标识码：A 文章编号：2095-5553（2026）03-0051-08

Abstract：Aiming at addressing theexcessveresistanceof bulldozing devices inrhizome corydalis harvesting machinery，a drag-reductionrotarydiggingshovel wasdesigned，anditskinematicand mechanical analyseswere conducted.A bionic blademodel wasdeveloped fortheshovel，andadiscreteelement method simulationmodel integrating rhizome corydalis tubers，soil，andtherotary shovel wasestablished.With bladewidth，numberof blades，and rotational speed as experimentalfactors，and resistance forceandcutter shaft torqueasevaluation indices， optimal operational parameters were determined through simulation experiments：1o blades， 80mm bladewidth，and 298r/min rotational speed.Under these parameters，the bladeresistancewas 207.47N and the cutter shaft torque was 39.96N⋅m . Comparative analysis with conventional planar shovel bulldozing devices demonstrated a 30‰ （20 reduction in resistance，indicating superior efficiency for rhizome corydalis harvesting.

Keywords： rhizome corydalis；rotary digging shovel; harvesting machinery; biomimetic； DEM simulation

0 引言

元胡最早起源于中国东北，其果实以药用为主，在20世纪70年代引进至，其种植方式简单，经济效益可达其他蔬菜作物的 5～10 倍[1，2]，元胡产业是城固县的支柱产业，2024年其收获面积为6.67khm2 ，总产量达到 52kt ，产值近18.7亿元[3]。（剩余12585字）