不同滑移率下吊杯式移栽机株距仿真分析及试验
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摘要
针对2ZB-2型吊杯式移栽机在移栽时出现滑移现象导致株距不稳定的问题,对滑移率、传动比与株距之间的关系进行推导,得出了在不同滑移率与传动比下株距的计算公式。利用仿真软件Adams对移栽装置进行不同滑移率与传动比下的运动仿真,得到了对应的株距值,并指出株距随着滑移率和传动比的增大而增大。通过不同土壤硬度下的田间试验对仿真结果进行验证,结果表明:当滑移率为12%16%、传动比为0.667 0.794时,试验和仿真结果能较好吻合,最大相对误差7.75%;在满足运动特征参数大于1的情况下,滑移率较大时可以选择较小的传动比,滑移率较小时可以选择较大的传动比来调整株距。此研究为移栽机的设计和田间作业提供了参考。
In view of the problem that the instability of the spacing by slip phenomenon in the process of transplanting of the 2 ZB-2 type Dibble-type transplanter,the relationship between the slip rate,the ratio of the transmission and the plant spacing was deduced,obtained the calculation formula of plant spacing under different slip rate and transmission ratio. Simulation of the transplanting device under different slip rate and transmission ratio by software Adams. obtained the corresponding spacing values. and points out that the spacing increases with the increase of the ratio of slip rate and transmission. Through field experiment of different soil hardness to validate the simulation results,the results show that when the slip rate is 12%-16%,the transmission ratio is 0. 667-0. 794,the test and simulation results in good agreement,the maximum relative error is 7. 75%. To meet the movement characteristic parameter is greater than 1,the slip rate is larger when choosing a smaller transmission ratio,the slip rate is small can choose to adjust the spacing of the larger transmission ratio. This study provides a reference for the design and field operation of transplanter.
In view of the problem that the instability of the spacing by slip phenomenon in the process of transplanting of the 2 ZB-2 type Dibble-type transplanter,the relationship between the slip rate,the ratio of the transmission and the plant spacing was deduced,obtained the calculation formula of plant spacing under different slip rate and transmission ratio. Simulation of the transplanting device under different slip rate and transmission ratio by software Adams. obtained the corresponding spacing values. and points out that the spacing increases with the increase of the ratio of slip rate and transmission. Through field experiment of different soil hardness to validate the simulation results,the results show that when the slip rate is 12%-16%,the transmission ratio is 0. 667-0. 794,the test and simulation results in good agreement,the maximum relative error is 7. 75%. To meet the movement characteristic parameter is greater than 1,the slip rate is larger when choosing a smaller transmission ratio,the slip rate is small can choose to adjust the spacing of the larger transmission ratio. This study provides a reference for the design and field operation of transplanter.
引文
[1]张冕,姬江涛,杜新武.国内外移栽机研究现状与展望[J].农业工程,2012(2):21-23.
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[9]封俊,秦贵,宋卫堂,等.移栽机的吊杯运动分析与设计准则[J].农业机械学报,2002,33(5):48-50.
[10]李松坡,余泳昌,陈新昌,等.基于ADAMS的移栽机关键机构设计与运动仿真分析[J].农机化研究,2015,37(1):47-50.
[2]迟明路.覆膜施肥移栽机的设计与试验研究[D].呼和浩特:内蒙古农业大学,2013.
[3]武科,毕新胜,陈永成.吊篮式移栽机栽植器的研究[J].农机化研究,2010,32(6):73-75,79.
[4]胡敏娟.穴盘苗自动移栽关键技术的研究[D].南京:南京农业大学,2011.
[5]郝金魁,张西群,齐新,等.我国栽植机械研制现状及发展建议[J].农机化研究,2011,33(7):222-224.
[6]迟明路,李旭英,田阳,等.吊杯式移栽机栽植株距调节的研究[J].农机化研究,2014,36(2):131-134.
[7]王晓东,封俊.国内外膜上移栽机械化的发展状况[J].中国农机化,2005(3):25-28.
[8]俞高红,黄小艳,叶秉良,等.旋转式水稻钵苗移栽机构的机理分析与参数优化[J].农业工程学报,2013(3):16-22.
[9]封俊,秦贵,宋卫堂,等.移栽机的吊杯运动分析与设计准则[J].农业机械学报,2002,33(5):48-50.
[10]李松坡,余泳昌,陈新昌,等.基于ADAMS的移栽机关键机构设计与运动仿真分析[J].农机化研究,2015,37(1):47-50.