摘要
在卧式铣床上配置除尘系统对干铣削产生的粉尘进行控制与处理,为了提高除尘系统吸风罩对粉尘的吸附能力,基于FLUENT软件对铣刀铣削时的气流速度场进行数值模拟,根据气流速度矢量的分布情况并结合吸风罩的设计原理,设计出3种不同扩散角的吸风罩;对3种吸风罩所产生抽吸气流的速度场进行对比分析,结果表明当吸风罩扩散角为60°时,罩内气流速度分布比较均匀,气流能够较好地充满罩内空间,且气流从连接管口至罩口的速度衰减量较小,有利于提高吸风罩的吸尘效果。
Horizontal milling machines need to install dust removal system to control and treat dust,and in order to improve the adsorption capacity of the suction hood,numerical simulation of air velocity field of milling has been done. According to the distribution of air velocity vector and combined with the design principle of the suction hood,three kinds of suction hoods with different diffusion angle are designed. The comparative analysis of the rush of air produced by theses three suction hoods have been done,and the results show when the suction hoods＇ diffusion angle is 60°,the velocity of airflow distributes more evenly,the airflow can better fill suction hood,and velocity attenuation of air flow from the connection pipe to suction hood＇s mouth is smaller,all of these are beneficial to improve the adsorption effect of the suction hood.
出处
《制造技术与机床》
北大核心
2015年第6期155-158,共4页
Manufacturing Technology & Machine Tool
基金
衢州职业技术学院重点科研项目资助项目(QZYZ1102)
衢州市科技计划项目资助项目(20121057)
关键词
卧式铣床
除尘系统
吸风罩
优化设计
horizontal milling machine
dust-removal system
suction hood
design optimization
