CAJ | 학술논문

基于圆盘型孔机械式精密排种器的工作原理，对排种盘充种及下种的结构参数进行了分析，并研究了种子在排种盘上的运动。为探讨圆盘式烟草育苗精量排种器的性能和精度，以排种器的合格指数、重播指数、漏播指数、种子破碎率、行变异系数及粒距变异系数为评价指标，以排种盘转速、排种口距输送带垂直距离两个因素为变量进行了试验。结果表明：在排种盘转速为n＝8 r/min、排种口距离输送带垂直距离为 H＝50 mm 的条件下，排种器的合格指数为48．61％、重播指数为31．94％、漏播指数为19．45％、行变异系数为1．68％、粒距变异系数为3．28％。
기우원반형공궤계식정밀배충기적공작원리，대배충반충충급하충적결구삼수진행료분석，병연구료충자재배충반상적운동。위탐토원반식연초육묘정량배충기적성능화정도，이배충기적합격지수、중파지수、루파지수、충자파쇄솔、행변이계수급립거변이계수위평개지표，이배충반전속、배충구거수송대수직거리량개인소위변량진행료시험。결과표명：재배충반전속위n＝8 r/min、배충구거리수송대수직거리위 H＝50 mm 적조건하，배충기적합격지수위48．61％、중파지수위31．94％、루파지수위19．45％、행변이계수위1．68％、립거변이계수위3．28％。
On the basis of analyzing the structure and working principle of disc-type hole mechanical precision seed-me-tering device , discussing the feed wheel structure parameters when seed falling upon and seeding , and this article deter-mined the movement of seeds in the seed tray .In order to explore performance and accuracy of the mechanical tobacco seedling precision seed-metering device, it experimented on seed-metering device, regarding acceptable quality rate, over sowing rate , drain sowing rate , seed breakage rate , coefficient variation in rows , coefficient variation with seed spacing as evaluation , and regarding the two factors of feed wheel speed and distance from seeding mouth to the conveyor belt as variable .The test results show that the evaluations of metering device are acceptable quality rate 48 .61%, over sowing rate 31.94%, drain sowing rate 19.45%, coefficient variation in rows 1.68%, coefficient variation with seed spacing 3 .28%,with the conditions of the feed wheel speed n=8 r/min and the distance from seeding mouth to the con-veyor belt H=50mm.