联合收获机多风道高效清选理论及自适应清选方法

项目名称： 联合收获机多风道高效清选理论及自适应清选方法

项目编号： No.51475217

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 徐立章

作者单位： 江苏大学

项目金额： 82万元

中文摘要： 针对传统清选装置（单风道离心风机+振动筛）无法满足高产超级稻单产迅速提高带来的高性能和高效率作业需求以及清选装置工作参数完全依赖经验进行手动调节、不能自动适应作业对象变化等瓶颈问题，探索高产超级稻脱出物多道风选方法，揭示多风道涡轮式风机、导流板等对清选室内气流场分布的影响规律。研究多风道气流吹托和双层往复式振动筛分耦合激励下，高产超级稻脱出物在筛面上的快速分散、分层迁移和碰撞透筛机理，建立脱出物颗粒群多固相气固两相流动模型和多风道/振动筛耦合高效清选装置的设计理论。探索清选装置作业状态在线监测与电动调节方法，研究作业状态预测和作业性能自适应模糊控制模型和智能控制器。集成研制高产超级稻联合收获机自适应高效清选装置，并进行试验与优化。本项目研究成果将为我国大喂入量联合收获机清选装置的设计提供理论与试验依据，突破传统清选装置作业性能不稳定、效率低、适应性差等核心难题，为我国粮食安全提供技术保障。

中文关键词： 联合收获机；水稻；多风道；清选装置；自适应控制

英文摘要： Traditional cleaning device (combination of single duct centrifugal fan and oscillating sieve) can not satisfy the operational requirements with high performance and efficiency that is brought by high-yield super rice. And it has the problems of manual adjustment of working parameters completely based on experience and automatically inadaptation to changes of crops. So it is important to explore multi-duct cleaning method of high-yield supper rice and show the effect of multi-duct turbine fan and guiding plate on distribution rules of airflow field in cleaning shoe. At the coupled excitation of multi-duct air blowing and double-deck sieves oscillating and screening, mechanism of threshed mixture rapid dispersion, hierarchical move and going-through sieve by collision are studied and gas-solid flow model of threshed mixture and design theory of high-efficiency coupled cleaning device of multi-duct and oscillating sieve are established. On-line monitoring and electrical control method of cleaning device are explored, and fuzzy control model and intelligent controller which can forecast operation condition and automatically adapt to different conditions are studied. Then self-adaption and high-efficiency cleaning device of high-yield supper rice combine is developed and experiment on it is done to optimize the device. Research achievement of the project will provide theory and experimental data for design of cleaning device in high-yield supper rice combine in China. It breaks through difficulties like instable performance, low efficiency and poor adaptation of traditional cleaning apparatus and provides technical and equipment guarantee for food safety.

英文关键词： combine harvester;rice;multi-duct;cleaning unit;adaptive control