3차원 치형을 구비한 파동기어장치

• Main Authors: KIYOSAWA YOSHIHIDE, SHIROKOSHI NORIO, KISHI SATOSHI
• Format: Patent
• Language: Korean
• Published: 10.05.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

파동기어장치(1)의 내치(20)의 3차원 치형은, 내치외단(20a)에서는 기본내치치형(20(0))이며, 잇줄방향의 다른 위치에서는 내치외단(20a)으로부터의 거리에 비례한 배율에 의하여 기본내치치형(20(0))을 가로방향으로만 비례하여 축소한 축소치형이다. 외치(3)의 3차원 치형은, 외치외단(30a)의 위치에서는 기본외치치형(30(0))이며, 잇줄방향의 다른 위치에서는 외치외단(30a)으로부터의 거리에 비례한 배율에 의하여 기본외치치형(30(0))을 가로방향으로만 비례하여 확대한 확대치형이다. 외치(30)만을 3차원 치형으로 하는 경우에 비하여, 기어절삭가공이 용이하게 된다. 또한, 잇줄방향에 있어서 가로방향으로만 비례하여 축소시키거나, 비례하여 확대시킨 치형을 채용하고 있으므로, 기어절삭가공이 한층 더 용이하게 된다. A three-dimensional tooth profile of internal teeth (20) in a strain wave gearing (1) is a basic internal-teeth tooth profile (20(0)) at an internal-teeth outer end (20a), and is a reduced tooth profile, in which the basic internal-teeth tooth profile (20(0)) is proportionally reduced only in the lateral direction, at other tooth-trace-direction positions. A three-dimensional tooth profile of external teeth (3) is a basic external-teeth tooth profile (30(0)) at an external-teeth outer end (30a), and is an increased tooth profile, in which the basic external-teeth tooth profile (30(0)) is proportionally increased only in the lateral direction, at other tooth-trace-direction positions. Tooth cutting process becomes easier than when only the external teeth (30) employ a three-dimensional tooth profile. Since the tooth profiles, which are proportionally reduced and increased only in the lateral direction along the tooth trace direction, are employed, it is further easier in tooth cutting process.