Abstract
Because of the influence of machine tool accuracy, the tooth profile error will occur during the processing of cycloidal gear. In order to evaluate the influence of tooth profile error on the transmission accuracy of cycloidal-pin gear pair, the actual tooth surface coordinate points with tooth profile error are calculated based on the measured tooth profile error of cycloidal gear, and the tooth profile error is obtained by non-uniform rational B-spline curve fitting. Based on the meshing principle, the tooth contact analysis (TCA) of the digitized tooth surface is carried out, and the transmission error curve of cycloidal-pin gear pair under the influence of tooth profile error is obtained.
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