【摘要】 本文系统地分析了“内侧囊种垂直圆盘排种器”中种子运动的规律,对排种轮作用的机理、囊种过程中主要因素的本质联系进行了探讨。提出排种轮旋转时,种子群由随壁转动种子层、滑落种子层、紊乱种子层、静止种子层构成环流种子层。说明排种器是以填补空间、相向速度差和同向速度差的方式,依靠重力、离心力实现多力囊种的。同时还论述了计算环流种子层大小和滑落种子量数值的方法。文章通过对种子在各种不同情况下的受力分析,得出排种轮转速只有在 n_p<n_i<n^F条件下,才能保证有足够的囊种区和清种区。当要求囊种区为0°—90°范围时,型孔线速度按 V_p<[（D-ml）（R/C）^1/2+R]Wi 控制,而且 V_p 应该是个范围。对排种轮半径 R、转速n₁,型孔线速度 V_p,复式型孔尺寸 D,以及种子的形状尺寸之间的关系也进行分析计算,建议 D≥k|,k>1.4,以供选择最佳参数时参考。更多还原

【Abstract】 This paper preliminarily approaches the flowing law,of the seeds, the action mechanism of the seed-cell filling part and the ossentinal con- nection of the primary factors in the seed-cell fill.It suggests a theory that the seeds constitute a circuling seed sheet from rounding seed sheet, sliding seed sheet,disorder seed sheet,and standing seed sheet when the feed turns.The working from of feed which makes much power feed a reality depends on the granity and centrifugal and includes filling space, difference at speed of same and opposite.It analyses that the move of the seed within the cavity of the seeding wheel in kinematics.It obtaines the result the only by n_p<n_l<n_f and V_P<[（D-ml）（R/C）^1/2+R]ωi the enough district of the filling seeds and the enough district of the decmying out seed can be ensured.It analses and computes the relations among raclius R of the seed wheel,the rotational speed N_j of the seed wheel,a critical liner velocity V_p of the seed cells,dicrmeter D of the seed cells and the measurements and shape of the seed and suggust D≥KL K>1.4 for the optimization of feed parameter.更多还原