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免耕播種機(jī)漏播補(bǔ)償系統(tǒng)設(shè)計(jì)與試驗(yàn)
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公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)(201503116-09)和國家自然科學(xué)基金項(xiàng)目(51275318)


Design and Test on No-tillage Planter Reseeding System for Miss-seeding
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    摘要:

    針對免耕播種機(jī)作業(yè)時(shí)存在漏播問題,,設(shè)計(jì)了一種漏播自動(dòng)補(bǔ)償系統(tǒng),,建立了補(bǔ)償裝置驅(qū)動(dòng)的數(shù)學(xué)模型,應(yīng)用滑模變結(jié)構(gòu)控制算法設(shè)計(jì)了補(bǔ)償系統(tǒng)控制器,,并對補(bǔ)償系統(tǒng)的動(dòng)態(tài)響應(yīng)性能進(jìn)行了仿真分析,。通過補(bǔ)種控制算法,,確定了補(bǔ)種機(jī)構(gòu)與主排種器的距離S和離地高度H,得到了補(bǔ)種排種盤轉(zhuǎn)速n和播種機(jī)行進(jìn)速度vm,、粒距Ll之間的關(guān)系曲線,,對排種器安裝高度H、粒距Ll,、傳送帶速度vm進(jìn)行了二次回歸正交試驗(yàn),,驗(yàn)證了漏播補(bǔ)償系統(tǒng)的補(bǔ)種性能。臺(tái)架試驗(yàn)的最佳工況組合為,,補(bǔ)種排種器安裝高度15.33cm,、粒距25.16cm、傳送帶速度3.52km/h時(shí),,補(bǔ)種成功率可達(dá)96.5%,。田間試驗(yàn)表明,安裝漏播補(bǔ)償系統(tǒng)后,,免耕播種機(jī)播種合格率均值為98.72%,,有效提高了播種質(zhì)量。

    Abstract:

    An adaptive miss-seeding reseed device of no-tillage planter was developed to solve miss-seeding problems when working, and the mathematical model of the reseed device driver was established to implement the simulation analysis on the dynamic response performance of the compensation system device. Through the reseeding control algorithm, the distance (S) of reseeding device to main seed-metering device and the height (H) of seed-metering device to ground were determined and the relationship curves among reseed-metering plate speed (n), the seeding machine moving speed (vm) and the seed distance(Ll) were achieved, which further achieved the self-adaption performance of the reseeding machine. The bench test results on reseeding detection accuracy showed that the miss-seeding detection accuracy was 93.23%, the rate of reseeding of the system was 95.11%, the actual reseeding rate of reseeding was 91.95%, the detection error rate was 3.16%, the reseeding success rate of the system was 96.38%, the actual reseeding success rate was 89.89%, and the detection error rate was 6.49%. The tests of quadratic orthogonal regression on the height (H) of seed-metering device to ground, the seed distance (Ll) and the seeding machine moving speed (vm) showed that the performance of the reseeding device was the best with the height (H) of seed-metering device to ground of 15.33cm, the seed distance (Ll) of 25.16cm and the seeding machine moving speed (vm) of 3.52km/h, and the reseeding success rate was 96.5%. The field test results on reseeding performance showed that the average seeding qualification rate was 98.72%, which had an increase of 4.56% at speed of 3km/h to 6km/h. The research effectively improved the seeding quality and also provided reference for further study on seeding performance improvement of no-tillage planter as well as the promotion of agriculture mechanization level with information technology.

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吳南,林靜,李寶筏,張本華,谷士艷.免耕播種機(jī)漏播補(bǔ)償系統(tǒng)設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2017,48(7):69-77,120. WU Nan, LIN Jing, LI Baofa, ZHANG Benhua, GU Shiyan. Design and Test on No-tillage Planter Reseeding System for Miss-seeding[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(7):69-77,120.

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  • 收稿日期:2017-04-16
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  • 在線發(fā)布日期: 2017-07-10
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