摘要
针对元胡采收机推土装置阻力过大等问题,设计一种减阻旋挖铲,并完成其运动学和力学分析。通过仿生学设计旋挖铲铲齿模型,建立元胡—土壤—旋挖铲离散元仿真模型,将铲齿幅宽、铲齿个数和旋转速度作为试验因素,以铲齿阻力大小、刀轴扭矩作为试验指标,通过仿真试验确定旋挖铲最优作业参数:铲齿个数为10、铲齿幅宽为80 mm、旋转速度为298 r/min。在该组作业参数下,铲齿阻力为207.47 N,刀轴扭矩为39.96 N,与现有平面铲推土装置对比分析表明:旋挖铲阻力降低30.88%,显著提升元胡的采收效率。
Aiming at addressing the excessive resistance of bulldozing devices in rhizome corydalis harvesting machinery,a drag-reduction rotary digging shovel was designed,and its kinematic and mechanical analyses were conducted.A bionic blade model was developed for the shovel,and a discrete element method simulation model integrating rhizome corydalis tubers,soil,and the rotary shovel was established.With blade width,number of blades,and rotational speed as experimental factors,and resistance force and cutter shaft torque as evaluation indices,optimal operational parameters were determined through simulation experiments:10 blades,80 mm blade width,and 298 r/min rotational speed.Under these parameters,the blade resistance was 207.47 N and the cutter shaft torque was 39.96 N·m.Comparative analysis with conventional planar shovel bulldozing devices demonstrated a 30.88%reduction in resistance,indicating superior efficiency for rhizome corydalis harvesting.
作者
余以鼎
任志贵
辛梅
刘瑞博
陈宇翔
郭嘉正
Yu Yiding;Ren Zhigui;Xin Mei;Liu Ruibo;Chen Yuxiang;Guo Jiazheng(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong,723000,China;Shaanxi Key Laboratory of Industrial Automation,Hanzhong,723000,China)
出处
《中国农机化学报》
北大核心
2026年第3期51-58,共8页
Journal of Chinese Agricultural Mechanization
基金
陕西省科技厅重点研究计划项目(2024NC—YBXM—203)
陕西省教育厅服务地方专项产业化培育项目(24JC024)。
关键词
元胡
旋挖铲
采收机
仿生学
离散元仿真
rhizome corydalis
rotary digging shovel
harvesting machinery
biomimetic
DEM simulation
