切-双纵流脱分装置试验研究与分析

Experiment of Threshing and Separation on Tangential-Double Longitudinal Axial Device

阐述了切-双纵轴流脱粒分离装置的结构组成及工作原理,基于切-双纵流联合收获机,以喂入量、切流滚筒间隙及滚筒转速为影响因子,脱粒破碎率及脱粒损失率为指标,进行田间性能试验,并利用极差分析分别对破碎率、脱粒损失率单影响因子进行分析。结果表明:对脱粒破碎率影响的主次因素为B>C>A,即切流滚筒转速>纵轴流滚筒转速>喂入量,最佳组合为切流滚筒间隙25/30mm、滚筒转速907/1 043r/min、喂入量10.2 kg/s;对脱粒损失率影响的主次因素为B>A>C,即切流滚筒间隙>喂入量>滚筒转速,最佳组合为切流滚筒间隙25/30mm、喂入量10.2kg/s、滚筒转速953/1 096r/min。

The paper mainly describes the structural and work of threshing and separation on tangential-double longitudi- nal axial device,based on the N120 tangential-double longitudinal combine harvester of Shandong lovol, take the feed quantity, tangential drum speed and longitudinal drum speed as influence factors, the broken rate and dirt percentage of threshing were used as test index, to performance experiments of wheat threshing and separated in the field. Used the range analysis method to study on the broken rate and loss percentage respective. The result show that the influence fac- tors of broken rate performance experiments of wheat threshing and separated is followed by longitudinal drum speed, tan- gential drum speed and feed quantity;The optimal indicators for the whole test are obtained with longitudinal drum con- cave of 25/30mm, drum speed of 907/1043 r/min and feed quantity of 10.2kg/s, the influence factors of loss percentage performance experiments of wheat threshing and separated is followed by feed quantity, tangential drum speed and longitu- dinal drum speed. The optimal indicators for the whole test are obtained with feed quantity of 10.2kg/s and tangential drum concave of 25/30mm, drum speed of 953/1096r/min ,Which provided design basis for follow-up work.