CAJ | 학술논문

针对现有大部分水稻直播排种器播种精度低、播量难控制等问题，研究了一种链板式水稻直播排种器。其主要部件为型孔链板。链板一端为型孔，另一端以标准套筒滚子链为基础、型孔链板作为链条附件与外链板铆合成一体，随着链条的运动周向转动实现充种、护种、清种、排钟过程。根据水稻种子尺寸的不同可更换不同型孔的链板满足多品种要求；弹性清种装置清种性能可靠、不伤种，且避免了型孔堵塞漏播现象。该排种器结构简便轻巧，排种性能优，采用六行链板式水稻直播机进行试验，单行稳定性系数达98．3％，种子破损率为0．39％。
침대현유대부분수도직파배충기파충정도저、파량난공제등문제，연구료일충련판식수도직파배충기。기주요부건위형공련판。련판일단위형공，령일단이표준투통곤자련위기출、형공련판작위련조부건여외련판류합성일체，수착련조적운동주향전동실현충충、호충、청충、배종과정。근거수도충자척촌적불동가경환불동형공적련판만족다품충요구；탄성청충장치청충성능가고、불상충，차피면료형공도새루파현상。해배충기결구간편경교，배충성능우，채용륙행련판식수도직파궤진행시험，단행은정성계수체98．3％，충자파손솔위0．39％。
A chain-plate precise seeding apparatus for rice direct-seeder was developed, for most of the rice seed mete-ring devices could not control seeding rate accurately.The main component of seeding apparatus was chain plate with shaped hold, and one end of the chain plate was type hold which matched the size of rice seeds, while the other end was similar with standard sleeve roller chain.The seeding apparatus executed seed filling, retaining, cleaning and dropping when it moved around the sprocket as the accessory of chain.The chain plate can be changed in depend of the shapes of different rices.The elastic cleaning device was effective in working and low in broken rate,and it could avoid miss-see-ding by emptying the type hold in time.The apparatus was slight in weight and uncomplicated in structure.When it was tested on a 6-row direct seeder, the results of the experiment showed that the single row stability coefficient was 98.3%, and the broken rate is only 0.39%, which proved that the chain-plate precise seeding apparatus had good performance.