Non-uniform flank rolling measurement for shaped noncircular gears

Abstract Noncircular gears can be applied to realize non-uniform transmission ratio for various mechanical systems. However, due to the complex geometry, the manufacture and measurement constitute great hindrance to the application. Recently, a practical shaping method has been applied to the manufacture of noncircular gear. Yet along with this, still no investigation has been conducted into the measurement method or device for noncircular gears. In this regard, the paper aims for a quick measurement of shaped noncircular gears. The manufacture of noncircular gears is discussed first, a mathematical model for non-uniform flank rolling measurement is established then, and finally, the measurement processing is introduced, including the developed measurement device, the computerized measurement system and a measurement experiment.