基于UG与MatLab马铃薯挖掘机分离筛仿真与优化
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摘要
针对升运链—分离筛式马铃薯挖掘机工作时薯土筛分不彻底及马铃薯破损率高的缺陷,提出了一种优化方案。首先,采用理论分析与虚拟仿真技术结合的方式对分离筛的摆杆与筛条的长度进行研究,根据研究结果对摆杆与筛条长度做出修改;其次,采用优化设计的方法寻找目标函数,确定影响目标的边界条件,从中寻找最佳方案对马铃薯挖掘机分离筛进行改进。结果表明:适当的缩短分离筛筛条的长度,加长分离筛后摆杆的长度有利于降低马铃薯的损伤率、提高分离率,最终优化确定摆杆的长度为420mm,二级分离筛筛条长度为495 mm。
Aiming at the incomplete screening and high breakage rate of the lift chain separating sieve potato harvester,an optimization plan is put forward. Firstly,the length of the swing bar and the screen bar of the separating screen is studied by means of theoretical analysis and virtual simulation technology,according to the research results,the length of the swing bar and the screen bar is modified. Secondly,we use the optimal design method to find the objective function and determine the boundary conditions that affect the target,find the best plan to improve the screen of potato digger. The results showed that proper shortening of the length of the separation sieve strip and lengthening the length of the rear swing bar were beneficial to reducing the injury rate and improving the separation rate of potatoes. Through the final optimization,the length of the swing rod is 420 mm and the second stage separation sieve bar is 495 mm.
Aiming at the incomplete screening and high breakage rate of the lift chain separating sieve potato harvester,an optimization plan is put forward. Firstly,the length of the swing bar and the screen bar of the separating screen is studied by means of theoretical analysis and virtual simulation technology,according to the research results,the length of the swing bar and the screen bar is modified. Secondly,we use the optimal design method to find the objective function and determine the boundary conditions that affect the target,find the best plan to improve the screen of potato digger. The results showed that proper shortening of the length of the separation sieve strip and lengthening the length of the rear swing bar were beneficial to reducing the injury rate and improving the separation rate of potatoes. Through the final optimization,the length of the swing rod is 420 mm and the second stage separation sieve bar is 495 mm.
引文
[1]刘剑君,邓明俐,贾世通,等.马铃薯挖掘机械现状与发展趋势[J].农学报,2015,5(1):95-99.
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[11]于文强,王兰美,赵相路,等.单行牵引式马铃薯挖掘机摆动筛仿真优化[J].农机化研究,2015,37(6):37-40.
[13]贾晶霞,张东兴.马铃薯摆动筛与茎块运动仿真分析[J].中国农业大学学报,2006(3):79-82.
[14]李雷霞,贾晶霞,李建东,等.土壤参数与马铃薯挖掘机牵引阻力的研究[J].农机化研究,2013,35(10):125-128.
[15]邵世禄,万芳新,魏宏安,等.我国马铃薯挖掘机械研制与发展的研究[J].中国农机化,2010(3):33-39.
[16]刘海超,王春光,顾丽霞.马铃薯在摆动分离筛上的动力学试验[J].中国农机化学报,2015,5(1):95-99.
[17]王咏梅,孙伟,王关平.关于马铃薯收获中机械损伤的研究[J].安徽农业科学,2014,42(9):2837-2840.
[2] Hosein Mosalanejad,Hosein Mobli,Afsaneh Poursoltan. TheMain Parameters Assessment of Clod and Stone Separationfrom Potato Crop(Inclined Belt Type)in Potato Harvester[J]. Majlesi Journal of Mechanical Engineering,2010,3(2):79.
[3]桑永英,张东兴,张梅梅.马铃薯碰撞损伤试验研究及有限元分析[J].中国农业大学学报,2008,13(1):81-84.
[4]赵满全,窦卫国,赵世杰,等.新型马铃薯挖掘机的研制与开发[J].内蒙古农业大学学报,2000,21(2):91-96.
[5]牛海华.强适应性小型振动式马铃薯挖掘机的设计[D].兰州:甘肃农业大学,2011.
[6]顾丽霞,王春光,刘海超.基于Pro/e5. 0的不规则马铃薯建模仿真研究[J].农机化研究,2012,34(12):32-35.
[7] Anon.日本东洋农机株式会社产品介绍[EB/OL][2018-03-01]. http://www. toyonoki. co. jp/catalog/index. html.
[8]谢胜仕,王春光,蒙建国,等.马铃薯在分离筛上运动规律的试验研究[J].农机化研究,2016,38(9):197-200,205.
[9]赵硕,张东兴,冯伟伟.关破解马铃薯挖掘机薯土分离难题[J].农机科技推广,2008(4):34-35.
[10]康璟,李涛,王蒂,等.马铃薯收获中机械损伤的分析与思考[J].农业机械,2013(4):137-139.
[11]于文强,王兰美,赵相路,等.单行牵引式马铃薯挖掘机摆动筛仿真优化[J].农机化研究,2015,37(6):37-40.
[13]贾晶霞,张东兴.马铃薯摆动筛与茎块运动仿真分析[J].中国农业大学学报,2006(3):79-82.
[14]李雷霞,贾晶霞,李建东,等.土壤参数与马铃薯挖掘机牵引阻力的研究[J].农机化研究,2013,35(10):125-128.
[15]邵世禄,万芳新,魏宏安,等.我国马铃薯挖掘机械研制与发展的研究[J].中国农机化,2010(3):33-39.
[16]刘海超,王春光,顾丽霞.马铃薯在摆动分离筛上的动力学试验[J].中国农机化学报,2015,5(1):95-99.
[17]王咏梅,孙伟,王关平.关于马铃薯收获中机械损伤的研究[J].安徽农业科学,2014,42(9):2837-2840.