ESDU 96035
Geneva mechanisms. Part 3: examples.
Abstract:
ESDU 96035 provides examples illustrating the use of ESDU 96002. The first two examples are primarily intended to show the use of the program, ESDUpac A9611, and so low speed applications in which inertial effects are not significant are considered. In the first the use of the program to analyse a typical external Geneva mechanism is described when the distance between the crank and the wheel shafts, the operating speed of the crank, and the load to be driven by the output shaft are all fixed. The two-stage process by which the a new design is modelled using the software is described. In the second the analysis of an internal Geneva mechanism with the same function is described using the same roller bearing, lubricant and materials. The characteristics and performance of the two mechanisms are compared. The third example demonstrates the most desirable strategy when only the operating speed of the motor, the driven load and the minimum dwell time are specified. It considers the effect on the performance of an external Geneva mechanism of varying the number of slots in the wheel and the roller/pin size for a constant speed crank.Indexed under:
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