农业机械学报2017，Vol.48Issue(5)：108-116,9.DOI:10.6041/j.issn.1000-1298.2017.05.013
油菜联合收获机集成式纵轴流脱离装置设计与试验
Design and Experiment on Integrated Longitudinal Axial Flow Threshing and Separating Device of Rape Combine Harvester
摘要
Abstract
Aiming at the problems of complex structure,long transportation distance and block of chain scraper conveying groove on rape combine harvester,an integrated longitudinal axial flow threshing and separating device was designed,which could replace the traditional chain scraper conveying groove.The forced feeding unit and longitudinal axial flow threshing and separating device were integrated together,their axes were distributed as "T" pattern.Rape stalks were transported by forced feeding unit and threshed and separated relying on longitudinal axial flow threshing and separating device.According to the working process of integrated longitudinal axial flow threshing and separating device,length,diameter,and rotational speed of forced feeding wheel and longitudinal axial flow threshing cylinder and other main parameters were determined.The indoor experiment was conducted and its results showed that when the feed quantity was 2.0 kg/s and rotational speed of forced feeding wheel ranged from 300 r/min to 450 r/min,entrainment loss rate of integrated longitudinal axial flow threshing and separating device was less than 1.31％;when the rotational speed of forced feeding wheel was 400 r/min,and feed quantity varied from 1.0 kg/s to 2.5 kg/s,the entrainment loss rate of was less than 1.18％,which met the design target of threshing and separating device for rape.Field experiments on rape combine harvester showed that integrated longitudinal axial flow threshing and separating device could adapted to operational requirements of rape combine harvester,materials were transported from header to threshing and separating device evenly and successively and threshed and separated.This study provided a reference for simplifying the whole structure of the rape combine harvester and reducing the flow path of rape in the combine harvester.关键词
油菜/联合收获机/集成式纵轴流脱粒分离装置/强制喂入装置/试验Key words
rape/combine harvester/integrated longitudinal axial flow threshing and separating device/forced feeding device/experiment分类
农业科技引用本文复制引用
李海同,万星宇,王华,蒋亚军,廖庆喜..油菜联合收获机集成式纵轴流脱离装置设计与试验[J].农业机械学报,2017,48(5):108-116,9.基金项目
农业部科研杰出人才及创新团队项目和湖北省技术创新专项重大项目(2016ABA094) （2016ABA094）
