爪式真空泵椭圆弧型直爪转子的构建与性能研究  

Construction and Performance Study of Elliptical Arc Straight Claw Rotor of Claw Vacuum Pump

作　　者：赵鑫[1] 谈庆朋 王君[1] 冯浩志 张成彦 崔冬 ZHAO Xin;TAN Qingpeng;WANG Jun;FENG Haozhi;ZHANG Chengyan;CUI Dong(China University of Petroleum(East China),College of Neu Energy,Qingdao 2665S0,China;State Key Laboratory of Compressor Technology,Hefei General Machinery Research Institute Co.,Ltd,Hefei 230031.China)

机构地区：[1]中国石油大学(华东)新能源学院,青岛266580 [2]合肥通用机械研究院有限公司压缩机技术国家重点实验室,合肥230031

出　　处：《真空科学与技术学报》2021年第12期1136-1141,共6页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金资助项目(52176029);山东省自然科学基金资助项目(ZR2019MEE079);压缩机技术国家重点实验室(压缩机技术安徽省实验室)开放基金项目(SKL-YSJ202006)。

摘　　要：爪式转子型线决定了爪式真空泵的性能,绘制爪式型线是爪式真空泵设计的重要步骤。为了进一步提高爪式转子的容积利用率,减小其余隙容积,本文基于曲线啮合理论建立了椭圆弧与其包络线的啮合模型,进而提出一种新型椭圆弧转子:新型椭圆弧直爪转子,并分析了其工作时的内容积比和容积利用率,横向对比了余隙容积和封闭容积。结果表明:椭圆弧型直爪转子所有曲线光滑连接,且能够达到正确啮合效果,余隙容积和封闭容积相比尖点型转子和圆弧型转子都有减小,内容积比和面积利用率较高。Claw rotor determines the performance of the claw vacuum pump,and the profile is the basis of rotor design.In order to further improve the volume utilization rate of claw rotor and reduce the remaining gap volume,this paper establishes the meshing model of elliptical arc and its envelope based on the curve meshing theory,and then proposes a new elliptical arc rotor:a new elliptical arc straight claw rotor,analyzes its working content product ratio and volume utilization rate,and compares the clearance volume and closed volume.The results show that all curves of the elliptical arc straight claw rotor are smoothly connected,and the correct meshing effect can be achieved.The clearance volume and closed volume are reduced compared with the sharp point rotor and the arc rotor,and the content product ratio and volume utilization rate are higher.

关 键 词：爪式真空泵 型线 椭圆弧型直爪转子 容积利用率 余隙容积 

分 类 号：TH36[机械工程—机械制造及自动化]