党参排种器性能试验研究  

Experimental Study on the Performance of Codonopsispilosulae Seed Dispensers

作　　者：田剑锋 石林榕 杨小平 李辉 柏永祥 臧金 Tian Jianfeng;Shi Linrong;Yang Xiaoping;Li Hui;Bai Yongxiang;Zang Jin(College of Mechanical and Electrical Engineering,Gansu Agricultural University,Lanzhou 730070,China)

机构地区：[1]甘肃农业大学机电工程学院,兰州730070

出　　处：《农机化研究》2024年第12期140-147,共8页Journal of Agricultural Mechanization Research

基　　金：甘肃省高校创新基金项目(2020A-051);甘肃省科技厅民生科技专项(20CX9NA098)。

摘　　要：针对当前我国党参育苗移栽种植模式环节复杂、效率低、成本高等限制了党参产业发展的问题,结合党参种子所需型孔形状和尺寸,设计了一种窝眼轮式党参排种器。以“甘党2号”种子为试验对象,以不同型孔、排种器转速作为试验因素,以各转速下排种量的变异系数作为评价指标,对比不同型孔窝眼轮不同转速下的排种性能,通过自搭建排种器性能检测试验台模拟田间试验。结果表明:排种优劣性能顺序依次为簸箕形、半球形、圆柱形、圆锥和方形;当型孔为簸箕形、型孔排列为单排时,排种性能最佳,10 r/min时变异系数为4.71%,15r/min时变异系数为3.20%,20r/min时变异系数为2.04%,25r/min时变异系数为2.52%。研究结果为党参机械化播种技术提供了理论依据。To address the current problems of complex links,low efficiency and high cost of Codonopsispilosulae seedling transplanting and planting mode in China,which limit the development of Codonopsispilosulae industry,design a nesting wheel type in combination with Codonopsispilosulae seeds to design suitable shape and size of the type hole Codonopsispilosulae seed rower.The seeds of"Gandan No.2"were used as the test object,and the coefficient of variation of the seed discharge volume at each speed was used as the evaluation index.The seed discharge performance of the different types of hole and eye wheel at different rotational speeds was compared and simulated in the field by means of a self-built seed discharger performance testing test rig.The test results showed that the seed discharge performance was in the order of dustpan,hemispherical,cylindrical,conical and square;the best performance was achieved when the holes were dustpan-shaped and arranged in a single row,with a coefficient of variation of 4.71%at 10 r/min,3.20%at 15 r/min,2.04%at 20 r/min and 2.04%at 25 r/min.The coefficient of variation at 25 r/min was 2.52%.This provides a theoretical basis for the mechanized seeding technology of Codonopsispilosulae.

关 键 词：党参 排种器 排种性能 

分 类 号：S223.296[农业科学—农业机械化工程] S220.3[农业科学—农业工程]