一种新型罗茨真空泵转子型线研究与应用  

Research and Application of a New Type Rotor Profile of Roots Vacuum Pump

作　　者：王建国 高逊懿 汪超[2] 李金建 张宝夫 WANG Jian-guo;GAO Xun-yi;WANG Chao;LI Jin-jian;ZHANG Bao-fu(Madebao Vacuum Equipment Group Co.,Ltd.,Taizhou 318000,China;Taizhou Vocational&Technical College,Taizhou 318000,China)

机构地区：[1]马德宝真空设备集团有限公司,浙江台州318000 [2]台州职业技术学院,浙江台州318000

出　　处：《真空》2024年第5期46-50,共5页Vacuum

基　　金：台州市工业计划项目(23gya12)。

摘　　要：提出了一种罗茨真空泵三叶直线圆弧型转子型线设计方法,给出了型线方程和针对ZJ-5000型罗茨真空泵转子型线的主要结构参数;对新型罗茨真空泵进行有限元分析,研究了其在不同进气压力下的抽气速率;基于该转子型线进行了实际产品生产,并与双叶转子罗茨泵的抽速和其他性能指标进行了对比。结果表明:新设计的三叶直线圆弧型转子型线具有容积效率高、曲线光滑过度、加工方便、定位准确、工作噪声低的特点,相对于两叶转子,其强度增强,能够承受更大的压差载荷,与传统三叶转子相比抽气效率得到了提高。A design method for the three-blade linear arc rotor profile of Roots vacuum pump was proposed,the profile equation and the main structural parameters of the ZJ-5000 Roots vacuum pump rotor profile were given.The finite element analysis of the new Roots vacuum pump was carried out,and the volume flow rate under different inlet pressure was studied.Based on the new rotor profile,the actual product was produced,and the pumping speed and other performance indexes of Roots pumps with three-blade linear arc profile rotor and double-blade rotor were compared.The results show that the new three-blade linear arc profile has the characteristics of high volumetric efficiency,smooth curve,easy processing,accurate positioning and low working noise.Compared with the two blade rotor,the new one can withstand greater pressure difference load,and the pumping efficiency is improved compared with the traditional three-blade rotor.

关 键 词：罗茨真空泵 实际转子型线 三叶直线圆弧型转子 装配间隙 

分 类 号：TB752.26[一般工业技术—真空技术]