Affiliation:
1. National Cheng Kung University Department of Mechanical Engineering Taiwan
Abstract
This paper describes a simple approach based on the envelope theory for deriving the geometric models of cylindrical and helical gear pumps with circular arc teeth. A gear pump with circular arc teeth can be easily obtained through the envelope theory for a one-parameter family of surfaces. In the process of machining a gear blank, the required rack-cutter teeth can be obtained by using the obtained cylindrical and helical gears, whose forms are easily determined by the envelope theory. Here the authors provide geometric modelling of the designed gear pump meshing when assembly errors are present. To illustrate the effectiveness of the approach, an analytical expression of cylindrical and helical gear pumps with circular arc teeth is given.
Reference9 articles.
1. Tooth Bearing Analysis and Surface Durability of Symmetrical Conformal Gears
2. El-Bahloul A. M. Comparative study of lubrication capacity of involute and circular-arc gears. In Proceedings of the Fifth ASME International Power Transmission and Gearing Conference, Chicago, Illinois, 1989, pp. 343–346 (American Society of Mechanical Engineers, New York).
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