期刊论文

Design and performance experiment of a threshing cylinder with longitudinal single axial flow

中文

湖南农业大学学报(自然科学版)

1007-1032

2016

42

5

554-560

10.13331/j.cnki.jhau.2016.05.017

国家自然科学基金项目（51175173）；

本校为第一机构

针对4LZ–3.0型联合收割机在水稻喂入量和草谷比较大时脱粒滚筒易堵塞的问题,设计了一种单纵轴流脱粒滚筒。该滚筒主要由喂入螺旋装置、辐条、辐盘、脱粒杆齿、排草板组成。脱粒时水稻由搅龙经输送槽输送至喂入螺旋装置处,经螺旋装置叶片轴向输送至脱粒杆齿滚筒进行脱粒。为探讨螺旋装置喂入适应性能,通过单头、双头和三头螺旋装置的选型试验,选定了三头喂入螺旋的脱粒滚筒,以滚筒转速、导向板倒角、脱粒间隙为因素,籽粒破碎率和未脱净损失率为性能评价指标,运用回归分析方法建立了该脱粒系统的数学模型,优化确定了其最佳工作参数组合。试验结果表明:当滚筒转速为800 r/min、导向板导角为23.7°...

In order to solve the blocking problem of threshing cylinder for 4LZ–3.0 rice combine-harvester caused by the large feeding quantity and the high ratio of output of main product to by-product of the crops, a optimized threshing cylinder with longitudinal single axial flow was designed. The threshing cylinder is mainly composed of feeding spiral, spokes, radial disc, threshing components, and row grass board etc. The feed spiral performance test and optimization test were carried out by using the rotation speed of cylinder, the guide plate lead...