RESEARCH ON THE KEY TECHNOLOGY OF TOOTH ANALYSIS AND MANUFACTURE FOR

GATEROTOR OF WORM COMPRESSOR

Liu Zhongming   Hou Donghai

(Zhengzhou Research Institute of Mechanical Engineering)

Wang Xiaochun

(Xi’an Jiaotong University)

Zhang Xiaozhi  Liu Yuanjie  Chen Guomin

Wang Shengtang

(Zhengzhou Research Institute of Mechanical Engineering )

Abstract: The composition of gaterotor profile of worm compressor is analyzed, the formulae of enveloping surface and tracking surface of gaterotor tooth are proposed, radial hobbing interference of gaterotor is discussed. The research shows that the gaterotor can not be generated by wormgear hob, a machining method using extreme tracking surface to approach enveloping one is proposed, calculating method and controlling model of the principle error of the gaterotor are established. Theoretical research and test show that the method proposed in this paper is characterized by simpler in cutter structure, easier in manufacture accuracy control and lower production cost.

Key words: Compressor  Hourglass worm  Tooth surface    Numerical analysis  

CLC No: TH132.44

科技部1999年科研院所专项基金资助项目(国科发财字[1999]592号). Received 20020306, received in revised form 20030122