公开(公告)号：EP4261437A1

公开(公告)日：2023-10-18

申请号：EP20965098.5

申请日：2020-12-10

申请人： Public Interest Incorporated Association Research Institute For Applied Sciences ,  Neturen Co., Ltd.

发明人： KUBO Aizoh ,  MATSUOKA Hiroaki

IPC分类号： F16H55/06

摘要： In order to prevent a spalling failure of a tooth flank (10Y) at a middle point of a tooth height and a dedendum (10Z) caused by Trochoidal interference due to meshing during operation of a gear transmission, in a gear manufacturing process, a manufacturing method is adopted in which a tooth tip edge part is softened more than the tooth flank at the middle point of the tooth height and the dedendum by performing a tempering or annealing treatment on the tooth tip edge part (10X), more preferably by a local tempering or annealing treatment. As a result, it is possible to dramatically improve ease of manufacturing control, quality control, and safety control of a gear while preventing breakage of the gear.