倾斜圆台型玉米精密排种器种子破损试验  

Corn Seed Damaging Experiment in Truncated Cone Precision Metering

作　　者：夏连明[1] 王相友[1] 耿端阳[1] 

机构地区：[1]山东理工大学农业工程与食品科学学院,淄博255049

出　　处：《农业机械学报》2012年第12期67-71,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十二五"国家科技支撑计划资助项目(2011BAD20B09)

摘　　要：针对机械式精密排种器伤种率高的问题,提出了一种基于丸粒化玉米种子的精密排种器。以排种轴转速、型孔直径、动盘锥角为因素,种子破损率为指标,运用二次回归正交旋转安排试验,建立了种子破损率与各影响因素之间的回归数学模型。通过Design-Expert 7.1软件对试验参数进行优化,确定排种轴转速13.2 r/min、型孔直径16 mm、动盘锥角26.5°为最佳参数组合,此时种子破损率为0.65%。验证试验表明该组合下试验误差较小。Based on the problem of high seed damaging, a precision metering was proposed based on the pelleted corn seeds. The two times orthogonal rotational regressive tests were designed in the experiments. The rotary speed, diameter of the cell, cone angle of the metering seeding plate were defined as input parameters and seed damaging index was defined as output parameters. The regression mathematics models between output parameters and input parameters were established and then parameters were optimized through Design-Expert 7. 1. The optimal combination was that the rotary speed of 13.2 r/min, diameter of the cell of 16 mm, cone angle of the metering seeding plate of 26.5°, at that time the seed damaging index of 0.65%. Confirmatory tests showed that the inaccuracy was little.

关 键 词：排种器 丸粒化玉米 破损 试验 

分 类 号：S223.2[农业科学—农业机械化工程]