圆弧包络线在罗茨转子型线设计中的应用  

Application of enveloping curve of circular arcs in design of roots rotor profile

作　　者：刘坤[1] 巴德纯[1] 张振厚[2] 王光玉[2] 常学森[1] 金璐[1] 

机构地区：[1]东北大学真空与流体工程研究中心,辽宁沈阳110004 [2]中国科学院沈阳科学仪器研制中心,辽宁沈阳110168

出　　处：《真空》2007年第1期14-17,共4页Vacuum

基　　金：国家十五863专项"罗茨干泵研制(2005AA1Z2030)"资助课题

摘　　要：罗茨转子是罗茨鼓风机、罗茨压缩机、罗茨流量计和罗茨真空泵等设备中最关键的核心部件。罗茨转子的设计成功与否,对这些设备的性能至关重要。本文使用计算机动画编程的方法,对圆弧包络线的生成和性质进行了研究,并将其应用于罗茨转子型线的设计中。文中还引入了形状系数c和峰顶系数c1,详细给出不同类型的圆弧型线的罗茨真空泵容积利用系数随形状系数c和峰顶系数c1的变化情况。文末给出了一个转子加工的实例。Roots type rotor is of crucial importance to roots blower, compressor, flowmeter and vacuum pump. Their performance is basically dependent on the rotors. In this respect the generation of enveloping curve of circular arcs and its property are studied through computer animation programming in the design of roots type rotor profile. Introducing the shape coefficient c and peak coefficient c1 into the design and defining them, how the volumetric utilization coefficients of various arc profiles of roots type rotors change with c and c1 are described in detail. An example of such rotor processed is given.

关 键 词：罗茨转子 型线设计 圆弧包络线 啮合原理 动画编程 

分 类 号：TB752.26[一般工业技术—真空技术]