The Design of New Geneva Mechanism Contours

Abstract

There is flexible impact during the driving of straight geneva mechanism. Therefore, geneva mechanism with combined contours is proposed. The design method of cam contour is adopted in new geneva mechanism (back seeking cam contours according to follower motion). And ADAMS is adopted to carry out the dynamics simulation of the improved geneva mechanism. The experimental result shows that new geneva mechanism reduces the flexible impact, which exists at the moment of round pin passing in and out of the geneva mechanism, and reduces the angular acceleration during the moving of geneva mechanism.