Multistage Geared Geneva Mechanism

[+] Author and Article Information
A. T. Yang, L. M. Hsia

Department of Mechanical Engineering, University of California, Davis, Calif.

J. Mech. Des 101(1), 41-46 (Jan 01, 1979) (6 pages) doi:10.1115/1.3454022 History: Received June 05, 1978; Online October 21, 2010


Design concepts for an n-stage geared Geneva mechanism, which is an assembly of n Geneva mechanisms connected by (n−1) gear trains, are proposed in this paper. The dwell time produced by the system is a function of (n−1) phase angles, the combined number of slots on all the wheels and the number of pins on all cranks in the system. The introduction of phase angles into the family of design parameters is highly significant: it gives the engineer an added dimension in the design of intermittent mechanisms and it gives him the flexibility to fine-tune their dwell time. For illustrative purposes, the derivation for the dwell time and the kinematic analysis of a two-stage geared Geneva mechanism are treated in detail. It is hoped that the results, which are presented in the form of charts and graphs, would be useful for the rational design of intermittent mechanisms.

Copyright © 1979 by ASME
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