联合收获机吸杂口偏置型旋风分离清选装置试验  

Performance Experiment on Cyclone Separating Device Based on Off-centered Inlet Scoop

作　　者：周学建[1] 袁华杰[1] 闫卫红 师清翔[1] 马萌[1] 李宇航[1] 

机构地区：[1]河南科技大学农业工程学院,洛阳471003 [2]中国国机重工集团有限公司,北京100102

出　　处：《农业机械学报》2014年第8期80-85,159,共7页Transactions of the Chinese Society for Agricultural Machinery

基　　金：'十二五'国家科技支撑计划资助项目(2011BAD20B10)

摘　　要：利用吸杂口偏置型旋风分离清选装置试验台,进行了旋风分离筒吸杂口偏置角度和偏置距离试验,研究了吸杂口偏移位置参数对清选性能的影响规律,获得了清选效果较优的吸杂口偏置型旋风分离筒的结构参数。通过正交试验和回归试验得到了该清选装置的较优结构运动参数,并进行了验证试验和适应性试验,为该清选装置在微型联合收获机上的应用提供了依据。Taking rice as the experiment subject, and making scoop offsetting from feed inlet to ensure the quality of cleaning, the influence of the rotation angle and offset distance of the off-centered inlet scoop on the performance of cyclone separating device was studied. Based on the result of this study, the orthogonal test and regression test were also carried out . Through the performance test on cyclone separating device, the following conclusions were obtained. When the diameter of the cyclone separating tube was φ = 350 mm, the rotation angle of off-centered inlet scoop was δ = 150°, the offset distance of inlet scoop was d = 35 mm, and the rotation speed of fan was NI = 1 200 r/min, the cleaning effect was as well favorable, and the cleaning rate was Yq ≥ 99% and the loss rate was Ys ≤ 0. 1%. Through the orthogonal test and regression test, the best structural parameters and motion parameters of the cyclone separating device were obtained as following： diameter of the grain export φ = 160 mm, rotation speed of the fan Nf = 1 157 r/min, rotation speed of the winnower Ny = 1 065 r/min, cleaning rate Yq =99% , and loss rate Ys = 0.06%.

关 键 词：联合收获机 旋风分离 清选装置 偏置吸杂口 影响规律 

分 类 号：S225.4[农业科学—农业机械化工程]