党参收获滚筒式根土分离试验台的设计与试验
闫帅 , 崔清亮 , 张燕青 , 李光 , 赵志宏 , 安楠
甘肃农业大学学报 ›› 2023, Vol. 58 ›› Issue (02) : 226 -234.
党参收获滚筒式根土分离试验台的设计与试验
Design and testing of a drum-type root-soil separator for Codonopsis pilosula harvesting
目的 党参收获缺乏适宜的机械,针对党参收获过程根土分离环节存在的问题,设计了一种滚筒式党参根土分离试验台。 方法 根据实际工作需求,对分离滚筒进行结构设计,对分离滚筒里的物料进行运动轨迹分析;利用ANSYS软件对该分离滚筒进行静力学仿真,保证分离装置结构的合理性。 结果 以人工挖掘的党参根土复合体作为试验材料,进行单因素试验分析各因素变化水平,通过正交设计试验得到最佳作业参数为分离滚筒的转速为30 r/min,前段30 mm×30 mm筛孔的筛网长度为50 cm,后段20 mm×20 mm筛孔的筛网长度为45 cm,分离滚筒的倾斜度为3°,在此条件下其分离率为95.7%,损失率4.1%,满足设计要求。 结论 通过试验,党参根土复合体分离效果较好,可为党参收获机设计提供依据。
Objective Codonopsis pilosula harvesting is labor-intensive,time-consuming,and lacks suitable machinery. This study aimed to address the problem of the root and soil separation in the process of Codonopsis pilosula harvesting by designing a roller-type test bench for root and soil separation. Method The separation cylinder structure was designed and the material movement track analysis was carried out according to actual work requirements.The statics simulation of the separation drum was conducted using ANSYS software to ensure the rationality of the screening device structure. Result One way ANOVA was performed to analyze the level of change of various factors with manually excavated Codonopsis pilosula root-soil complex. The optimal operation parameters obtained by orthogonal design test were as follows:the rotation of the separation drum was 30 r/min,the length of the front 30 mm×30 mm screen was 50 cm,the length of the back 20 mm×20 mm screen was 45 cm,and the inclination of the separation drum was 3°.Under such conditions,the separation rate was 95.7%,and the loss rate was 4.1%,meeting the design requirements. Conclusion The results indicated that the roller-type test bench for root and soil separation had a better effect on Codonopsis pilosula root-soil complex,providing a basis for the design of a Codonopsis pilosula harvester.
Codonopsis pilosula / harvest / separation drum / statics simulation / test analysis
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