外槽轮式播种机播量控制系统设计与试验
|
摘要
为提高外槽轮式排种器播量调节范围与控制精度,设计了一种外槽轮式播量自动控制系统,该系统通过采集机组行进速度信号,同时控制槽轮转速与槽轮长度,实现播量调节与控制。通过试验,建立了播量与槽轮转速、有效工作长度的数学模型,分析了槽轮转速、有效工作长度对播量变异系数与模型精度的影响。结果表明:模型最大误差小于5%,平均误差为3. 2%,满足精度要求;槽轮有效工作长度在14～30mm范围内、转速为40～60 r/min时,变异系数小于0. 5%。上述参数范围是所设计外槽轮式排种器播量自动控制系统适宜的控制范围。研究为外槽轮排种器的播量自动控制策略提供了理论依据。
In order to promote the scope and accuracy of the seeding amount adjustment and control,designed the seeder with sowing control system which controlled the rotation speed and the working length of the groove wheel by the signal of the forward speed of the machine. And through the test,found the model between the seeding amount and the rotation speed and the working length of the groove wheel,analyzed the effect of the above factors on the coefficient of sowing variation and the accuracy of the model built,and the results showed that the model satisfied the requirement of the accuracy and the maximum and average deviation were 5% and 3. 2%. What's more,the coefficient of sowing variation was less than 0. 5% when the working length was 14-30 mm and the rotation speed was 40-60 r/min,the above parameters were suited for the designed seeder with sowing control system. The research provided the foundation for the control strategy of the external grooved wheel.
In order to promote the scope and accuracy of the seeding amount adjustment and control,designed the seeder with sowing control system which controlled the rotation speed and the working length of the groove wheel by the signal of the forward speed of the machine. And through the test,found the model between the seeding amount and the rotation speed and the working length of the groove wheel,analyzed the effect of the above factors on the coefficient of sowing variation and the accuracy of the model built,and the results showed that the model satisfied the requirement of the accuracy and the maximum and average deviation were 5% and 3. 2%. What's more,the coefficient of sowing variation was less than 0. 5% when the working length was 14-30 mm and the rotation speed was 40-60 r/min,the above parameters were suited for the designed seeder with sowing control system. The research provided the foundation for the control strategy of the external grooved wheel.
引文
[1]冯帆. 2BDP-1000型水稻育苗秧盘精量播种机的研制[J].农业工程,2015,5(2):76-79.
[2]罗锡文.对加速我国农业机械化发展的思考[J].农业工程学报,2011,1(4):1-8,56.
[3]安鹤峰.播种机的技术现状及发展趋势[J].农业科技与装备,2013(7):69-72.
[4]何文龙.小麦播种机排种器电动系统的设计与试验[D].南京:南京农业大学,2013.
[5]沈函孝.外槽轮电动排种器设计与试验研究[D].扬州:扬州大学,2016.
[6]付士陆.一种电子控制种子播种数量的播种机:中国,CN200920098970. 4[P]. 2009-10-28.
[7]李金泽.同步电子排肥器:中国,CN201220 122 546. 0[P]. 2012-10-24.
[8] Ola Ringdahl,Thomas Hellstro,Iwan Wasterlund,et al. Estimating wheel slip for a forest machine using RTK-DGPS[J]. Journal of Terramechanics,2012,49:271-279.
[9] S. Kamger,F. Noei-Khodabadi,S. M. Shafaei. Desgn,developm ent and field assessment of a controlled seed metering unit to be used in grain drills for direct seeding of wheat[J].Information Processing in Agriculture,2015(2):169-176.
[10]李剑锋.播种机排种自动控制系统的研究[D].兰州:甘肃农业大学,2006.
[11]胡恒东.基于PLC的播量控制装置的研究[D].南京:南京农业大学,2013.
[12]金亦富,奚小波.外槽轮电动排种器设计与播种试验[J].中国农机化,2016,37(10):14-16.
[13]尹美贵,张淑敏,刘彩玲,等.新型紫花苜蓿外槽轮排种器的试验与分析[J].农机化研究,2014,36(1):161-164.
[14]张涛,刘飞,刘月琴,等.离散元模拟外槽轮排肥器排量分析[J].农机化研究,2015,37(9):198-201.
[15]全国农业机械标准化技术委员会. JB/T 9783—1999播种机外槽轮排种器[S].北京:中国标准出版社,2000.
[16]陈良波,郑亚青.基于最小二乘法的曲线拟合研究[J].无锡职业技术学院学报,2012,11(5):52-55.
[17]张娟娟.稳健线性回归中再生权最小二乘法的有效性研究[D].太原:太原理工大学,2013.
[2]罗锡文.对加速我国农业机械化发展的思考[J].农业工程学报,2011,1(4):1-8,56.
[3]安鹤峰.播种机的技术现状及发展趋势[J].农业科技与装备,2013(7):69-72.
[4]何文龙.小麦播种机排种器电动系统的设计与试验[D].南京:南京农业大学,2013.
[5]沈函孝.外槽轮电动排种器设计与试验研究[D].扬州:扬州大学,2016.
[6]付士陆.一种电子控制种子播种数量的播种机:中国,CN200920098970. 4[P]. 2009-10-28.
[7]李金泽.同步电子排肥器:中国,CN201220 122 546. 0[P]. 2012-10-24.
[8] Ola Ringdahl,Thomas Hellstro,Iwan Wasterlund,et al. Estimating wheel slip for a forest machine using RTK-DGPS[J]. Journal of Terramechanics,2012,49:271-279.
[9] S. Kamger,F. Noei-Khodabadi,S. M. Shafaei. Desgn,developm ent and field assessment of a controlled seed metering unit to be used in grain drills for direct seeding of wheat[J].Information Processing in Agriculture,2015(2):169-176.
[10]李剑锋.播种机排种自动控制系统的研究[D].兰州:甘肃农业大学,2006.
[11]胡恒东.基于PLC的播量控制装置的研究[D].南京:南京农业大学,2013.
[12]金亦富,奚小波.外槽轮电动排种器设计与播种试验[J].中国农机化,2016,37(10):14-16.
[13]尹美贵,张淑敏,刘彩玲,等.新型紫花苜蓿外槽轮排种器的试验与分析[J].农机化研究,2014,36(1):161-164.
[14]张涛,刘飞,刘月琴,等.离散元模拟外槽轮排肥器排量分析[J].农机化研究,2015,37(9):198-201.
[15]全国农业机械标准化技术委员会. JB/T 9783—1999播种机外槽轮排种器[S].北京:中国标准出版社,2000.
[16]陈良波,郑亚青.基于最小二乘法的曲线拟合研究[J].无锡职业技术学院学报,2012,11(5):52-55.
[17]张娟娟.稳健线性回归中再生权最小二乘法的有效性研究[D].太原:太原理工大学,2013.