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穴孔式水稻排種器投種過(guò)程分析
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of Rice Seed Metering Device with Hole
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    摘要:

    在水稻工廠化穴盤育秧播種過(guò)程中,，排種器的投種過(guò)程是影響播種性能的最后環(huán)節(jié),，為滿足排種器播種性能要求,，對(duì)投種過(guò)程中種子運(yùn)動(dòng)規(guī)律,、投種機(jī)理等進(jìn)行了理論分析,。把投種過(guò)程分為及時(shí)投種,、延遲投種和強(qiáng)制投種過(guò)程,，推導(dǎo)出每個(gè)過(guò)程中排種器各參數(shù)與穴盤運(yùn)動(dòng)速度間的關(guān)系式,，并對(duì)投種過(guò)程進(jìn)行了高速攝像分析,，驗(yàn)證了理論分析的合理性,。建立了型孔長(zhǎng)度與排種器相關(guān)參數(shù)間的限制關(guān)系式，分析表明合理選擇排種器設(shè)計(jì)參數(shù),，能夠保證種子不與型孔另一邊壁發(fā)生碰撞,，實(shí)現(xiàn)順利投種。

    Abstract:

    In the factory rice cell seedling, dropping process of rice seed metering device affects the seeding performance. To meet the requirement of the rice seed metering device, rice seed movement discipline and mechanism in the dropping process were analyzed theoretically. Dropping process was divided three parts: timely dropping process, delayed dropping process, and enforcement dropping process. The relationshipbetween cell tray velocity and the parameters of seed metering device was derived. Dropping process was analyzed based on high-speed photography technology. Analysis of dropping process provided a basis for the establishment of seed metering device design theory and optimal design. The relationship between the type hole length and the parameters of seed metering device was established. Analysis showed that rational parameters of metering device could ensure seed won’t have wall-type collision with the other side. 

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王沖,宋建農(nóng),王繼承,劉彩玲,武廣偉.穴孔式水稻排種器投種過(guò)程分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(8):39-42. of Rice Seed Metering Device with Hole[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(8):39-42.

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