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当前位置: 首页 > 文章 > 喂入辊轴流滚筒组合式大豆种子脱粒机设计与试验 农业机械学报 2015,46 (1) 112-118
Position: Home > Articles > Design and Experiment on Soybean Breeding Thresher of Double Feeding Roller and Combined Threshing Cylinder Transactions of the Chinese Society for Agricultural Machinery 2015,46 (1) 112-118

喂入辊轴流滚筒组合式大豆种子脱粒机设计与试验

作  者：
高连兴;郑世妍;陈瑞祥;杨德旭
单  位：
沈阳农业大学工程学院
关键词：
大豆;脱粒机;双喂入辊;轴流滚筒
摘  要：
针对大豆种子机械脱粒损伤率高与脱净率低等问题,提出了对辊喂入预脱、轴流滚筒抓脱的组合式脱粒方案,进行了滚筒脱粒元件、喂入装置和传动系统等装置和部件的结构设计并设计了脱粒样机。滚筒脱粒元件由螺旋排列的钉齿、弓齿、板齿组成,与凹板筛构成组合式脱粒装置;喂入装置主要由双喂入辊组成;气力清选装置主要由振动筛和风机组成。以"辽豆10"为试验对象,通过正交试验分析,以下喂入辊转速、脱粒滚筒转速和凹板间隙为试验因素,脱净率和损伤率为试验指标,进行了优化试验研究。结果表明:下喂入辊转速为222 r/min、滚筒转速为500 r/min、脱粒间隙40 mm时,大豆脱粒综合指标最优,脱净率为98.4%,大豆损伤率为1.4%。
译  名：
Design and Experiment on Soybean Breeding Thresher of Double Feeding Roller and Combined Threshing Cylinder
作  者：
Gao Lianxing;Zheng Shiyan;Chen Ruixiang;Yang Dexu;College of Engineering,Shenyang Agricultural University;
关键词：
Soybean Thresher Double feeding roller Axial cylinder
摘  要：
Mechanical threshing plays an important role in the modern soybean production,which is one of key factors causing damage of soybean seeds at the same time. It can not only bring the waste of soybean seeds and economic loss,but also affect seeds germination percentages and soybean yields tremendously,especially for mechanized precision sowing technique. Facing on the problems of higher soybean damage rate and lower soybean threshing rate,the overall design and comprehensive threshing principle of double feeding rollers and combined threshing cylinder soybean breeding thresher was proposed,critical components of combined threshing cylinder,feeding device and transmission system,etc. were designed,and the prototype was developed. Combined threshing cylinder was composed of spiral arrangement of spike tooth,bow tooth,tooth and concave plate screen. The feeding device was mainly composed of double feeding roller. Pneumatic cleaning device as mainly composed of vibrating screen and fan. The main soybean varieties from Agricultural College of Shenyang Agricultural University were selected as test materials,through orthogonal experiment analysis,the three parameters: feeding gear,drum rotating speed and concave plate clearance were selected as experimental factors. Soybean threshing rate and soybean damage rate were selected as experimental indexes. The structure and working parameter of threshing performance was optimized. Experimental results indicated that feeding gear,drum rotating speed and concave plate clearance all had significant impact on soybean threshing rate and soybean damage rate. The most optimum combination region of the moisture content was 16% ~ 18%,the feeding gear was mid-gear( 222 r / min),drum rotating speed was 500 r / min,the concave plate clearance was 40 mm,the soybean threshed rate was 98. 4% and the soybean damaged rate was 1. 4%.

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