期刊论文

Design and experiment of row-controlled throwing mechanism for rice straw

中文

湖南农业大学学报(自然科学版)

1007-1032

2016

42

4

454-459

10.13331/j.cnki.jhau.2016.04.020

湖南省政府重大专项(湘府阅[2014]35 号) 湖南省科学技术厅平台建设项目(湘财教指[2014]10 号)

本校为第一机构

针对南方土壤黏重板结、前作留茬高、易造成油菜机播前作业缠草和壅泥的难题,研制了一款多功能油菜覆草直播机,可实现将稻秸秆收集切碎绕过土壤作业部件后条铺于油菜种植行间。为该播种机设计了一种搅龙双向输送稻秸秆对行抛撒装置,主要由双向输送搅龙、搅龙槽组成。以稻秸秆对行抛撒均匀度变异系数为评价指标,对影响抛撒均匀性的因素(搅龙轴转速、秸秆喂入量、可调抛撒口宽度)进行二次回归正交旋转组合试验,对试验结果进行方差分析和响应曲面分析。结果表明:搅龙轴转速、秸秆喂入量、可调抛撒口宽度3个因素对稻秸秆对行抛撒均匀度变异系数的影响显著;当搅龙轴转速为218 r/min、秸秆喂入量为1.5...

In order to solve the problems of winding grass and blocking mud before sowingdue to long stubble remained in farmland after harvesting as well as the heavy clay soil in south of China, a multifunctional rape-planting and grass-covering machine was used to collect and cut the rice stubbles, and then row-controlled throw the chopped rice stubbles. Based on this machine, a row-controlled throwing mechanism for rice straw was designed with an two-way auger and the auger groove. The variation on uniformity of throwing rice straw was investigated by using the experiment device dependent on the spee...