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轉(zhuǎn)盤斜刮式光電自動數(shù)粒儀設(shè)計(jì)
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浙江省重大科技攻關(guān)農(nóng)業(yè)項(xiàng)目(2006C12007)


Design of Turntable-inclined Scratch Style Photoelectric Instrument to Automatically Count Granules
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    摘要:

    基于粒料在移行中可自動產(chǎn)生間距的轉(zhuǎn)盤斜刮排序原理,設(shè)計(jì)了轉(zhuǎn)盤斜刮式光電自動數(shù)粒儀和千粒重儀。無序的粒料或種粒進(jìn)入有斜槽和弧槽的槽盤中,在底部轉(zhuǎn)盤帶動下實(shí)現(xiàn)移行、自動整齊排序和產(chǎn)生粒間距,獲得光電計(jì)數(shù)所需的可靠透光間隙,并通過預(yù)置和復(fù)檢二次計(jì)數(shù)實(shí)施數(shù)粒。試驗(yàn)表明:每輪預(yù)置計(jì)數(shù)誤差數(shù)小于1~2顆,而復(fù)檢計(jì)數(shù)與實(shí)際粒數(shù)的誤差率小于0.04%;計(jì)數(shù)速度可達(dá)30~50粒/s;粒料適用范圍為0.5~18mm;未發(fā)現(xiàn)供試粒料破損現(xiàn)象;結(jié)構(gòu)簡單可靠,無電磁振動噪聲等;轉(zhuǎn)盤斜刮式排序原理還可用于開發(fā)高精度無粒料損傷的數(shù)粒設(shè)備。

    Abstract:

    Described herein are the principles for automatically arranging, and separating granules via an inclined turntable, the foundations of which have been established through the design and manufacture of a turntable-inclined scratch style photoelectric apparatus that can count granules or weigh up to 1000 of them. The unorganized granules enter an inclined trough and onto a turntable, the bottom of which automatically migrates, sorts and arranges the granules into space from each other, to get the reliable light-trough gaps, at which point a photoelectric apparatus accurately preset, counts and verifies the collection of granules. This type of instrument provides several advantages over other designs: the counting mechanism is extremely precise, for every round, the preset counting error is less than 1~2 granules, and the re-examination counting error rate is less than 0.04%; the counting speed is as high as 30~50 granules per second; the valid range of diameters is from 0.5 mm to 18mm; no seed damage was found during tests; the simple and reliable structure enables no electromagnetic vibration or noise; and the principles underlying the device have a wide range of potential applications beyond precise counting and sorting granules, especially for some devises with no-damage counting.

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宋礽蘇,華嬌,藍(lán)景針,夏世峰.轉(zhuǎn)盤斜刮式光電自動數(shù)粒儀設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(11):89-92,75. Song Rengsu, Hua Jiao, Lan Jingzhen, Xia Shifeng. Design of Turntable-inclined Scratch Style Photoelectric Instrument to Automatically Count Granules[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(11):89-92,75.

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