Effects of gear machining accuracy on the noise of a planetary-gear reducer

Abstract

The effects of gear machining accuracy on the noise of a planetary-gear reducer are experimentally investigated in this paper. In order to correlate the gear machining accuracy with the noise of the planetary reducer, four sets of gears, which have different machining accuracies, are manufactured and the noises of these sets are analyzed. Related to the machining accuracy, four kinds of machining errors are experimentally measured. The measured errors are the profile deviation, the helix deviation, the pitch deviation and the run-out deviation. The noise of the planetary-gear reducer is measured when the reducer has one of these four machining errors. Based on the measurements, the effects of the machining errors on the reducer noise are compared to each other. The comparison shows that the run-out deviation is the most important machining error to deteriorate the noise condition of the reducer.