EVALUATION DEVICE OF A PAIR OF GEARS, AND A PAIR OF GEARS OPTIMIZED BY THE SAME

摘要

PPROBLEM TO BE SOLVED: To provide an evaluation device of a pair of gears for precisely and quantitatively grasping backlash of each kind of gear pair. PSOLUTION: In the evaluation device of a pair of gears, an operation section 6 mutually relate respective three-dimensional coordinates data on a gear tooth surface 102G and a pinion tooth surface 102P at a prescribed engagement rotary position for converting to three-dimensional coordinates data in a cylindrical coordinates system with a gear 101G as a reference. By two-dimensional parameters, functions for indicating respective points on the pinion tooth surface 102P are created, and respective points on the pinion tooth surface 102P corresponding to the respective points on the gear tooth surface 102G are computed by a Newton method. Information on gaps between tooth surfaces at drive and coast sides of a tooth surface is obtained by the computations, and backlash information is obtained based on the information on the gaps between the tooth surfaces. PCOPYRIGHT: (C)2010,JPO&INPIT