公开(公告)号：EP3173659A1

公开(公告)日：2017-05-31

申请号：EP15824221.4

申请日：2015-07-03

Applicant: Harmonic Drive Systems Inc.

Inventor： KIYOSAWA, Yoshihide ,  HANDA, Jun ,  TAKIZAWA, Noboru ,  ZHANG, Xin Yue

IPC: F16H1/32

CPC classification number: F16H49/001 ,  F16H1/32 ,  F16H2049/003

Abstract: An externally toothed gear (4) of a dual-type strain wave gearing (1) is provided with first and second external teeth (7, 8) having different teeth numbers, and is flexed into an ellipsoidal shape by a wave generator. When the theoretical values (d 1 , d 2 ) of the radial flexing amounts at major-axis positions of the first and second external teeth (7, 8) flexed into the ellipsoidal shape are expressed by d 1 =m 1 n 1 and d 2 =m 2 n 2 (m 1 and m 2 represent the modules of the first and second external teeth, and n 1 and n 2 represent positive integers), the radial flexing amounts (d 1a , d 2a ) of the first and second external teeth (7, 8) flexed by the wave generator (5) satisfy d 1a =ωd 1 and d 2a = ωd 2 , where 1.25 ≦ω≦ 3. Accordingly, a dual-type strain wave gearing can be achieved with which the first and second external teeth having different numbers can be suitably flexed to form excellent mating states with respective internally toothed gears.

Abstract translation: 双型波动传动装置（1）的外齿轮（4）具有齿数不同的第一和第二外齿（7,8），并通过波发生器弯曲成椭圆形。 当第一和第二外齿（7,8）的主轴位置处的径向弯曲量的理论值（d1，d2）弯曲成椭圆形时，由d1 = m1n1和d2 = m2n2（m1和m2 表示第一和第二外齿的模块，并且n1和n2表示正整数），由波发生器（5）弯曲的第一和第二外齿（7,8）的径向挠曲量（d1a，d2a）满足 d1a =ωd1，并且d2a =ωd2，其中1.25≤ω≤3。因此，可以实现双类型的应变波齿轮传动装置，其中具有不同数量的第一和第二外齿可以适当地弯曲以形成优异的配合状态， 齿轮。