任德志,白雪卫,刘德军,宫元娟,高智惠.玉米秸秆皮瓤分离碾压揭皮辊设计与试验[J].农业机械学报,2018,49(1):93-99.
REN Dezhi,BAI Xuewei,LIU Dejun,GONG Yuanjuan,GAO Zhihui.Design and Test on Roller-teeth Husking Roller in Rind-pith Separation of Corn Stalks[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(1):93-99.
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玉米秸秆皮瓤分离碾压揭皮辊设计与试验   [下载全文]
Design and Test on Roller-teeth Husking Roller in Rind-pith Separation of Corn Stalks   [Download Pdf][in English]
投稿时间:2017-08-15  
DOI:10.6041/j.issn.1000-1298.2018.01.011
中文关键词:  玉米秸秆  皮瓤分离  碾压机构
基金项目:国家自然科学基金项目(51405311)和农业部公益性行业科研专项(201503134)
作者单位
任德志 沈阳农业大学 
白雪卫 沈阳农业大学 
刘德军 沈阳农业大学 
宫元娟 沈阳农业大学 
高智惠 沈阳农业大学 
中文摘要:为提高玉米秸秆皮瓤分离效率,达到皮瓤分类利用,以秸秆群为研究对象,设计辊齿式碾压揭皮辊,实现秸秆皮瓤有效分离。采用密度理论法(SIMP)设计了辊齿式碾压揭皮辊,并进行了有限元模拟仿真分析,确定了碾压揭皮辊半径为33mm,齿型刀片齿刃高2mm、厚度2mm、刃角30°。为寻找最佳参数组合,以皮瓤分离率为试验指标,碾压揭皮辊转速、辊齿间隙、切段长度为试验因素,进行二次回归正交旋转组合设计试验。运用Design-Expert进行试验数据处理与分析,建立评价指标与试验因素之间的数学模型,并对参数进行优化,确定玉米秸秆皮瓤分离碾压揭皮辊的最佳参数组合为:碾压揭皮辊转速为295r/min,辊齿间隙为5mm,切段长度为22mm时,皮瓤分离率为85%。经试验验证,试验结果与分析结果基本一致。
REN Dezhi  BAI Xuewei  LIU Dejun  GONG Yuanjuan  GAO Zhihui
Shenyang Agricultural University,Shenyang Agricultural University,Shenyang Agricultural University,Shenyang Agricultural University and Shenyang Agricultural University
Key Words:corn stalks  rind-pith separation  husking roller
Abstract:In order to improve the efficiency of rind-pith separation for corn stalks, a kind of roller-teeth husking roller was designed. It firstly achieved elastic-plastic deformation of rind and pith in the feeding and compaction process, meanwhile, the shearing device cut corn stalks into segments to realize rind and pith separation. Based on this principle, a roller-teeth husking roller device was designed by applying the solid isotropic microstructures with penalization (SIMP)method, and a finite element simulation analysis was made on the husking roller, and the following data for the husking roller were obtained as follows: radius of husking roller was 33mm, height of toothed blade was 2mm, toothed blade thickness was 2mm and blade angle was 30°. To find out the optimal parameter combination, a quadratic regression rotation-orthogonal combination design test was made by taking rind and pith separation rate as the test index, and rotating speed of the husking roller, toothed blade clearance, cutting length of stalk segments as test factors. After test data treatment and analysis with the software Design-Expert, a mathematical model on test index and factors was set up. After parameter optimization, the optimal parameter combination for the rind and pith separation husking roller device was obtained: the rotating speed of the roller was 295r/min, roller-teeth clearance was 5mm, length of stalk segments was 22mm, and the separation rate was 85%. The test proved that the results could basically meet the working requirements, which were in line with the analysis results. Conclusions can be drawn that the roller-teeth husking roller had good adaptability. Reference for the design of the roller-teeth husking roller can be provided.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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