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当前位置: 首页 > 文章 > 联合收获机同轴差速轴流脱粒滚筒设计和试验 农业机械学报 2010,41 (10) 73-77
Position: Home > Articles > Design and Test on the Coaxial Differential-speed Axial-flow Threshing Rotor of Combine Harvester Transactions of the Chinese Society for Agricultural Machinery 2010,41 (10) 73-77

联合收获机同轴差速轴流脱粒滚筒设计和试验

作  者：
陈霓;熊永森;陈德俊;徐锦大;赵云
单  位：
金华市农业机械研究所;浙江省农业机械研究院;金华职业技术学院机电工程学院;金华职业技术学院
关键词：
联合收获机;轴流滚筒;同轴差速;设计;试验
摘  要：
阐述了联合收获机同轴差速脱粒滚筒的工作原理和结构,并进行了试验研究。在试验的基础上用Matlab离散余弦傅氏分析法,分别建立了单速和差速脱粒情况下不同脱出物轴向分布的数学模型及其分布曲线。结果表明:差速脱粒的籽粒总破碎率为0.67%,杂余产生量为脱出物总量的8.63%,末脱净与夹带损失率为0.76%,分别比单速脱粒下降40.9%、29.5%和32.15%,脱粒的质量优于单速脱粒。同轴差速脱粒装置集高、低转速对脱粒性能的有利作用于一体,使损失率、破碎率和含杂率性能指标同时下降并分别达到优质水平。
译  名：
Design and Test on the Coaxial Differential-speed Axial-flow Threshing Rotor of Combine Harvester
作  者：
Chen Ni1 Xiong Yongsen1 Chen Dejun1 Xu Jinda2 Zhao Yun1(1.College of Mechanical and Electrical Engineering,Jinhua College of Profession and Technology,Jinhua 321000,China2.Jinhua Agricultural Machinery Research Institute,Jinhua 321000,China)
关键词：
Combine harvester,Threshing rotor,Coaxial differential,Design,Experiment
摘  要：
Principle of coaxial differential threshing and it's design schemer was proposed.Axial distribution curve and mathematical model of threshing mixture were established in the case of single speed threshing and differential speed threshing by means of Matlab on the basis of experiments.Results showed that grain total percentage of damage was 0.67%,the quantity of impurity with grain was 8.63% of total mixture quantity,the grain loss rate of unthreshed head and lined grain was 0.76%,which reduced by 40.9%,29.5% and 32.15% of the single speed rotor.Differential threshing quality was better than single one.Coaxial differential threshing units integrated with the beneficial effects of high-speed threshing and slow-speed threshing,which could reduce grain loss rate,damage rate, impurity rate of three performance indicators synchronously and achieve better level.

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