Evaluation of the gear pair system, the evaluation program of gear pairs, and gear pairs and tooth surface evaluated using these

摘要

Provided is a gear pair evaluation device capable of realizing accurate tooth surface analysis based on measurement information of an actual tooth surface without using information on a reference tooth surface. Therefore, the calculation unit 6 associates the three-dimensional coordinate data on the gear tooth surface 102G and the pinion tooth surface 102P with each other at a predetermined meshing rotational position, and converts them into three-dimensional coordinate data in a cylindrical coordinate system based on the gear 101G. . On the pinion tooth surface 102P corresponding to each point (grid point) on the gear tooth surface 102G by creating a function representing a point on the pinion tooth surface 102P based on each three-dimensional coordinate data on the pinion tooth surface 102P. The coordinates of each point are calculated using a function.