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为进一步探明脱粒装置结构参数对玉米种子果穗脱粒生产作业的影响,依托自行研制的5TYJ-10A玉米种子脱粒机,通过置换分别携有钉齿类、直板齿类、组合螺旋板齿类3类脱粒元件的脱粒装置,分析玉米种子脱粒装置工作性能,建立组合螺旋脱粒板齿几何参数相关数学模型,分析获得组合式螺旋板齿脱粒装置相关脱粒板齿半径、中心脱粒间距及板齿高度的设计参数。试验结果表明,选取出作业性能良好的组合螺旋板齿式脱粒装置,其脱净率为99.16%、含杂率为3.26%、破碎率为0.43%,对应实际生产率为11.6 t/h。采用脱粒板齿试验装置进行不同脱粒板齿螺旋角试验选取,结果表明,当组合螺旋板齿角为6°-12°时更适宜进行玉米种子脱粒作业。研究成果将为玉米种子脱粒生产装备的研发提供参考与借鉴。
In order to further ascertain the influence of structural parameters of threshing device on the threshing production of maize seeds, based on the self-developed 5TYJ-10A corn seed thresher, three groups of spikes, The threshing device of the threshing device was used to analyze the working performance of the corn seed threshing device. The mathematical model of the geometric parameters of the spiral threshing board was established. The design of the threshing board radius, center threshing distance and board height of the combined spiral threshing device was analyzed parameter. The experimental results show that the best combination of performance of spiral gear tooth threshing device is 99.16%, the impurity rate is 3.26%, the breaking rate is 0.43%, corresponding to the actual productivity of 11.6 t / h. The threshing board tooth testing device was used to select different threshing board tooth helix angle test. The results showed that the threshing operation of corn seed was more suitable when the tooth angle of combination helical plate was 6 ° -12 °. The research results will provide reference and reference for the research and development of corn seed threshing production equipment.