基于流体分析的复式谷物清选机主风机的优化设计  

Optimization Design of the Main Fan of the Compound Sorting and Clearing Machine Based on the Analysis of the Fluid

作　　者：李海青 刘文俊 胡明 LI Haiqing;LIU Wenjun;HU Ming(Shandong Machinery Design and Research Institute, Jinan 250031)

机构地区：[1]山东省机械设计研究院,济南250031

出　　处：《现代制造技术与装备》2016年第11期7-8,共2页Modern Manufacturing Technology and Equipment

摘　　要：针对复式清选机主风机产生的气流速度过小、分布不均匀、影响谷物籽粒清选质量等问题,利用CFD流体分析对主风机的结构进行优化,通过增加进气口提高进气量,优化蜗壳尺寸提高出风口风速,从而使穿过筛孔的气流更加均匀并达到谷物籽粒的临界悬浮速度。For compound sorting and clearing machine ofmain fan produces airflow speed too small and distribution is notuniform to affect of grain cleaning effect problem. This paper usesthe CFD to analysis the main fan for optimizing the structure, byincreasing inlet port raised the amount of intake, optimizing thesize of the spiral case to increase the wind speed of the air at outlet,and the more uniform and reach the critical suspension velocity ofgrain through the sieve airflow.

关 键 词：复式谷物清选机 主风机 CFD 

分 类 号：S226.5[农业科学—农业机械化工程]