农机化研究2017，Vol.39Issue(10)：77-81,5.
棉箱压实搅龙机构对籽棉压缩作用仿真及分析
Simulation and Analysis on Compression Effect of Screw Conveyor in the Hopper on Seed Cotton
摘要
Abstract
A discrete element simulation model is established with EDEM for compaction screw conveyor in the hopper. And simulation analysis on compression process of seed cotton during Working Process of compaction screw conveyor which provides guidance for structure design of compaction screw conveyor. Simulation results show that the compaction force of seed cotton produced by push function of compaction screw conveyor, and seed cotton compressions, adhesion, twisting force between particles are increased with the increase of the number of seed cotton. While the number of seed cotton no longer increases, seed cotton inter-atomic forces, smaller total compression force leveling off during the push stage. After the push stage, although seed cotton quantity does not increase, but under compaction stir the push of the compaction screw conveyor, seed cotton accumulation and extrusion in the front of hopper, the compression force of seed cotton increased significantly, so the total compression force of seed cotton rapidly increasing. Variable diameter compac-tion stir dragon institutions due to beat the dragon former after the small diameter, the accumulation in cotton seed cotton at the end of the box by the trail stirring dragons to stabilize the throughput of push forward, the front big diameter stirring the dragon will be a lot of seed cotton push compression, variable diameter compaction screw conveyor shows good effect on periodically push and compaction.关键词
籽棉压缩/搅龙/EDEM仿真Key words
seed cotton compression/compaction screw conveyor/EDEM simulation分类
农业科技引用本文复制引用
孔凡婷,石磊,张玉同,陈长林,孙勇飞,谢庆,黄铭森..棉箱压实搅龙机构对籽棉压缩作用仿真及分析[J].农机化研究,2017,39(10):77-81,5.基金项目
“十二五”国家科技支撑计划项目(2013BAD08B02) （2013BAD08B02）
中国农业科学院创新工程-茎秆类收获机械(2016-2020) （2016-2020）
