水稻芽种直播槽轮排种器排种仿真与试验
Journal of Hunan Agricultural University(Natural Sciences)（2018）
Abstract
为获得水稻芽种直播机排种性能良好的槽孔形状、槽孔螺旋角、槽轮工作转速,运用离散元分析软件EDEM对半圆形、"V"形、梯形、钩勺形4种槽孔槽轮排种器的排种性能进行仿真分析和台架试验验证.结果表明:当槽轮槽孔形状为钩勺形、槽孔螺旋角为13.46°、槽轮工作转速为21.09 r/min时,排种器排种穴径合格率为96.37%,穴粒数合格率为95.43%,伤芽率为6.54%,可满足农艺要求.
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