小喂入量大豆收割机纵轴流脱粒装置参数优化  

Parameters optimization of longitudinal axial threshing unit of small feed harvester for soybean

作　　者：杨欢[1] 杜勇利 陈平[1] 杜青[1] 雍太文[1] 张黎骅 杨文钰[1] YANG Huan;DU Yong-li;CHEN Ping;DU Qing;YONG Tai-wen;ZHANG Li-hua;YANG Wen-yu(College of Agronomy,Sichuan Agricultural University,Chengdu 611130,China;College of Mechanical and Electrical Engineering,Sichuan Agricultural University,Ya′an 625014,China)

机构地区：[1]四川农业大学农学院,四川成都611130 [2]四川农业大学机电学院,四川雅安625014

出　　处：《甘肃农业大学学报》2018年第4期184-189,196,共7页Journal of Gansu Agricultural University

基　　金：国家自然科学基金项目(31671626);国家玉米产业体系专项项目(CARS-02-29)

摘　　要：【目的】为解决我国西南丘陵地区大型收割机具通过性差,横轴流式收割机脱粒损失率大的问题.【方法】利用小喂入量纵轴流脱粒装置试验台,以籽粒破碎率、损失率和含杂率为试验指标,进行了滚筒转速、导向板升角和筛孔尺寸的单因素试验,初步确定了正交试验水平.在此基础上,进行了滚筒转速、导向板升角和筛孔尺寸三因素正交试验和滚筒转速、导向板升角两因素回归试验.【结果】当滚筒转速为460r/min,导向板升角为11°,筛孔尺寸为22mm×25mm时,该脱粒装置脱粒分离性能较优,破碎率为1.81%、含杂率为25.02%、损失率为0.52%.【结论】研究结果为小喂入量大豆收割机纵轴流脱粒装置的设计与优化提供参考.【Objective】To solve the problem of large harvesters cannot easily pass through in southwestern China,and the threshing part of horizontal axial flow harvester causes big loss rate.【Method】By using the small feed longitudinal axial threshing apparatus test-bed,single-factor tests of roller-speed,tooth angle and mesh aperture were carried out and the orthogonal test levels were obtained.On this basis,the three factors orthogonal test,including the speed of the roller,the tooth angle and mesh aperture,was researched.The two factors regression experiment,including the roller speed and tooth angle was also studied.【Result】Optimum parameters of threshing machine were 460 r/min for the roller speed,11°for the tooth angle,and 22 mm×25 mm for the mesh aperture,which allowed the broken rate to be 1.81%,the impurity rate to be 25.02%,and the loss rate to be 0.52%.【Conclusion】The study provides reference for design and optimization of small feed rate longitudinal axial threshing unit.

关 键 词：大豆 脱粒装置 正交试验 参数优化 

分 类 号：S225.6[农业科学—农业机械化工程]