A seed production field and precision sowing machine double cavity box, including a box and double cavity metering cup, the double cavity box is arranged at the lower part of the seed metering cup, two cup is provided with a relative negative pressure chamber, two chamber are respectively provided with a negative pressure suction pipe, suction tube is provided with a pressure switch, pressure switch there is a cylindrical valve, cylinder valve is provided with two through holes, cylindrical valve inserted through the suction pipe, the valve plate is arranged on the upper part of the cylindrical handle, the handle is provided with a pull plate, the negative pressure chamber are arranged on both sides of the sucker, sucker is arranged at the lower part of the suction disc, the sprocket shaft passes through the suction end is provided with a chain wheel shaft sprocket advantages; the invention is characterized by simple structure, convenient installation, low cost, stable and reliable, the application prospect is very considerable, time-saving, high efficiency, good seeding quality.
【技术实现步骤摘要】
一种制种大田两用精播机双腔种箱
本专利技术涉及机械设备
,尤其是涉及一种制种大田两用精播机双腔种箱。
技术介绍
目前,玉米等旱田作物的播种作业多采用拖拉机牵引的多行气吸式精量播种机,这种播种机的主要构造是:牵引架上固定几个播种单体,每个单体上均设有肥箱、种箱和地轮。其中,种箱下面设有排种器,排种器设有带吸孔的吸盘,吸盘一侧与种杯里面的种子相邻,另一侧与负压室相邻。地轮在转动时通过链条带动吸盘转动,与负压室相对的吸孔吸附种子运转,当吸孔脱离负压室时抛下种子。多年实践证明,气吸式精量播种机株距准确,单籽率高,省种省工。可是,这种播种机只适合大面积单一品种的播种作业,对于不同品种的间作,特别是玉米种子田的播种,这种机具还很难适应。玉米种子田要求把父本和母本相间种植,而且父本行数少,母本行数多。常用比例为父本∶母本=1∶5或1∶7。显然,现有播种机的作业行数很难与上述比例相吻合。所以,只能根据需要随时更换种子。可是,要把种箱和排种器里面的种子取出再更换别的种子,难度很大。因此,农民只能沿用原始的畜力犁以及人力点播的方法播种种子田,或者用畜力犁和机引播种机结合作业。专 ...
【技术保护点】
一种制种大田两用精播机双腔种箱,包括双腔种箱(1)和排种杯(2),其特征在于:所述双腔种箱(1)下部设有排种杯(2),两个排种杯(2)相对处设有负压室(3),两个负压室(3)分别设有负压管(7),负压管(7)上装有负压开关(8),负压开关(8)有一支圆柱阀(9),圆柱阀(9)上开有两个通孔(10),圆柱阀(9)插过负压管(7),圆柱阀(9)上部设有板柄(11),板柄(11)上设有拉线(12),所述负压室(3)两侧设有吸盘(6),吸盘(6)下部设有吸种盘(13),链轮轴(4)穿过吸盘(6),链轮轴(5)一端设有链轮(4)。
【技术特征摘要】
1.一种制种大田两用精播机双腔种箱,包括双腔种箱(1)和排种杯(2),其特征在于:所述双腔种箱(1)下部设有排种杯(2),两个排种杯(2)相对处设有负压室(3),两个负压室(3)分别设有负压管(7),负压管(7)上装有负压开关(8),负压开关(8)有一支圆柱阀(9),圆柱阀(9)上开有两个通孔(10),圆柱阀(9)...
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