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玉米茬地免耕播種機(jī)具導(dǎo)向系統(tǒng)設(shè)計(jì)與試驗(yàn)
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Design and Experiment on Oriented System for No-tillage Planters in Maize Stubble Field
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    摘要:

    設(shè)計(jì)了一種由機(jī)具導(dǎo)向架、液壓系統(tǒng)和以DSP為核心的控制單元組成的機(jī)具導(dǎo)向系統(tǒng)。根據(jù)與該系統(tǒng)配套的拖拉機(jī)確定了機(jī)具導(dǎo)向架的基本參數(shù),并通過對機(jī)具導(dǎo)向架外框不同位置的受力分析得出該系統(tǒng)可以推動的最大負(fù)載滿足機(jī)具田間作業(yè)的要求。以JDT654L型拖拉機(jī)為試驗(yàn)平臺,進(jìn)行了系統(tǒng)性能試驗(yàn)。結(jié)果表明,機(jī)具導(dǎo)向架的調(diào)節(jié)范圍為-10.8°~10.7°;該系統(tǒng)換向平穩(wěn),換向時(shí)間短,對輸入信號有較好的響應(yīng)和控制精度,跟蹤信號的最大誤差角度不超過1.5°,能夠?qū)崟r(shí)地調(diào)整機(jī)具前進(jìn)方向。

    Abstract:

    An oriented system for no-tillage planters, which consists of guiding frame, hydraulic system and control unit was designed according to the problem of no-tillage planting quality resulted from the unefficient maize row-following capacity of no-tillage planter in annual double cropping areas. The main parameters of guiding frame determine on the matched tractor. Furthermore, the force analyses in different positions of the outside frame of guiding frame indicates that the guiding system can meet the requirements of the maximum load for adjusting planter direction in the planting. By employing JDT654L tractor as a test platform, the system performance analysis was conducted, and the results showed that the adjusting range of actuator is -10.8°~10.7°. Moreover, the outcomes also indicated that the system is capable of commutating steadily and rapidly, and performs a fair response capability and satisfactory control accuracy to input signals, with maximum error angle of no more than 1.5°, which assures that the implements direction could be timely corrected.

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李洪文,李嬌,蘇艷波,張喜瑞,王慶杰.玉米茬地免耕播種機(jī)具導(dǎo)向系統(tǒng)設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(4):41-46.Design and Experiment on Oriented System for No-tillage Planters in Maize Stubble Field[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(4):41-46.

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