HE Yi bin, LI Wei, WANG Yan wei, SONG Long, HU Rong bo, 

LIU Hui, LI Hui zai,YAN Fu rong

 

(School of Mechanical and Electrical Engineeing, Wuhan Institute of Technology, Wuhan 430073, China)

 

 

Abstract: Aiming at the impact effect of packaging machine device inside the Geneva wheel mechanism in the process of transmission, basis on the study of the cam follower motion, the structure design of the Geneva wheel mechanism to establish mathematical model, and the Geneva wheel mechanism were stress analysis in the process of work, the CATIA V5 software was used to build the Geneva wheel mechanism of three dimensional entity of virtual prototype. The finite element analysis was carried out on the Geneva wheel mechanism of the important parts, and the Geneva wheel mechanism of the traditional structure and improve the structure of the sheave were calculated by the finite element software. The results indicate that compared with the Mises equivalent stress nephogram, energy error and displacement nephogram, the traditional Geneva wheel mechanism inside the sheave close to the bottom position subject to greater impact, and the improved structure optimization of Geneva wheel mechanism, the maximum displacement and maximum stress of Geneva wheel mechanism has a larger decrease, thus effectively reduce the transmission of the impact force size and improve the service life of the Geneva wheel mechanism, which the structure design and material selection of Geneva wheel mechanism has a certain reference value.

 

Key words: geneva wheel mechanism; mechanism design; CATIA; finite element analysis; structure optimization