DISPLACEMENT FUNCTIONS STUDY FOR THE KINEMATIC MODELLING OF THE CURVED SLOTTED GENEVA MECHANISM

摘要

Geneva mechanism is the rotary intermittent mechanism widely used. The major disadvantage of the conventional Geneva mechanism is that the output motion starts and ends with nonzero acceleration. This problem limits the usefulness of the Geneva mechanism to low speed applications. In order to eliminate the shock of loading caused by these nonzero initial and final accelerations, a curved slotted Geneva mechanism can be used. In this paper, some representative displacement functions adequate for kinematic modelling of the curved slotted Geneva mechanism are studied, on the basis of the resemblances of the Geneva mechanism with the cam mechanisms.