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基于電磁閥的噴嘴直接注入式農(nóng)藥噴灑系統(tǒng)
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中德合作科研資助項(xiàng)目（GZ494）


Direct Nozzle Injection Sprayer Based on Electromagnetic-force Valve
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    摘要:

    設(shè)計(jì)了一種噴嘴直接注入式農(nóng)藥噴灑系統(tǒng)。通過與傳統(tǒng)噴霧機(jī)械比較，簡(jiǎn)述了噴嘴直接注入式噴霧系統(tǒng)的結(jié)構(gòu)和噴霧執(zhí)行單元。為了實(shí)現(xiàn)農(nóng)藥定量注入，設(shè)計(jì)一種基于電磁原理的快速響應(yīng)閥，并論述其工作原理和閉環(huán)控制方式。通過試驗(yàn)測(cè)試了噴霧執(zhí)行單元的噴霧特性和噴桿組內(nèi)各噴霧單元的一致性。結(jié)果表明在一定噴灑速率范圍內(nèi)，噴霧執(zhí)行單元的噴水量和水壓強(qiáng)存在多項(xiàng)式關(guān)系，農(nóng)藥注入量和PWM信號(hào)的高電平時(shí)間存在指數(shù)關(guān)系，其決定系數(shù)均高于0.9，并且同一噴桿組內(nèi)6個(gè)噴霧單元的噴霧效果大體一致。

    Abstract:

    A type of direct nozzle injection sprayer was developed. By comparing with traditional spraying machines, the detailed structure and advantage of direct nozzle injection sprayer, especially to the injection unit, were analyzed. In order to dose pesticide precisely, a type of fast reaction valve based on electromagnetic principle was designed. The structure and control strategy were discussed in detail. The test of sprayer performance was carried out. The results showed that there existed a polynomial relationship between the water injection and the water pressure, and an exponential relationship between the pesticide injection and the opening time of PWM signal. The determination coefficients of both models were above 0.9. Besides, the uniformity of the six injection units within one boom section was tested and showed good performance.

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蔡祥,Walgenbach Martin, Doerpmund Malte, Schulze Lammers Peter,孫宇瑞.基于電磁閥的噴嘴直接注入式農(nóng)藥噴灑系統(tǒng)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(6):69-72,200. Cai Xiang, Walgenbach Martin, Doerpmund Malte, Schulze Lammers Peter, Sun Yurui. Direct Nozzle Injection Sprayer Based on Electromagnetic-force Valve[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(6):69-72,200.

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  • 在線發(fā)布日期: 2013-05-28
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