小区联合收获机清选装置试验与参数优化  

Experiment and Parameter Optimization of Cleaning Device of Plot Combined Harvester

作　　者：王浩[1] 王嘉伟[1] 巨孟凯 韩翔涛 郑德聪[1] WANG Hao;WANG Jiawei;JU Mengkai;HAN Xiangtao;ZHENG Decong(College of Agricultural Engineering,Shanxi Agricultural University,Jinzhong Shanxi 030801,China)

机构地区：[1]山西农业大学农业工程学院,山西晋中030801

出　　处：《农业工程》2022年第4期88-96,共9页AGRICULTURAL ENGINEERING

基　　金：国家现代农业产业技术体系项目(CARS-07-D-2);山西省重点研发计划项目(201903D211005);山西农业大学博士科研启动项目(2021BQ18)。

摘　　要：针对小区联合收获机清选装置存在的籽粒损失率和含杂率偏高等问题,结合内外滚筒旋转式脱粒装置,搭建脱粒清选试验平台,仿真分析结果表明,该清选装置符合筛分要求。以脱出籽粒中含杂率及损失率作为试验指标,选取对清选性能影响较大的风机转速和振动筛曲柄转速为试验因素,分别进行单因素试验,得到风机转速为1000 r/min时,含杂率与损失率分别为0.65%和1.06%;振动筛曲柄转速为275 r/min时,含杂率与损失率分别为0.55%和0.87%。最后运用Central Composite中心复合设计方法进行响应面试验,研究因素交互作用对试验指标的影响规律。试验结果表明,最佳匹配参数为风机转速900 r/min、振动筛曲柄转速300 r/min;在最佳参数组合下,对该装置进行多次验证试验,得到其含杂率和损失率的平均值分别为0.75%和0.62%,表明在该参数组合下此装置能够满足小区收获的清选性能要求。In view of problems such as high seed loss rate and impurity rate of district joint harvester,combined with internal and external roller rotary granulation device,test platform for granulation removal was set up,and simulation analysis results showed that selection device met screening requirements.Impurity content and loss rate in detached grain were used as experimental indexes.Air turbine speed and vibration sieve crank speed,which had a great influence on clearance performance,were selected as test factors.Single-factor test was carried out respectively.When fan speed was 1000 r/min,impurity content and loss rate were 0.65%and 1.06%respectively.When crank speed of vibrating screen was 275 r/min,impurity content and loss rate were 0.55%and 0.87%respectively.Finally,response surface test was carried out by Central Composite design method to study influence of factor interaction on test index.The best matching parameters obtained by test results were fan speed of 900 r/min and vibration sieve crank speed of 300 r/min.Under the best parameter combination,the device was tested several times,and average of its impurity rate and loss rate was 0.75%and 0.62%,respectively,indicating that the device could meet clearance performance requirements of cell harvest under this parameter combination.

关 键 词：联合收获机 清选装置 清选性能 响应面分析 

分 类 号：S223.2[农业科学—农业机械化工程]