公开(公告)号：US20150316134A1

公开(公告)日：2015-11-05

申请号：US14649082

申请日：2013-09-24

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Tatsuro HOSHINA ,  Masakatsu SASAHARA

IPC: F16H49/00

CPC classification number: F16H49/001 ,  F16H1/32 ,  F16H2049/003 ,  Y10T74/19

Abstract: First and second external tooth gear parts of a strain wave gearing are bent in an elliptic shape by a wave generator to engage with first and second internal tooth gears, respectively. The first and second external tooth gear parts are bent so as to have elliptic shapes the phases of which are rotated 90 degrees from each other about a rotational center line. A coupling external tooth gear part that maintains a circular cross-sectional shape which does not deform is formed in between the first and second external tooth gear parts. The coupling external tooth gear part is maintained so as to be coupled with a coupling internal tooth gear in an engaged manner. The strain wave gearing has high engagement rigidity and is capable of transmitting large torque.

Abstract translation: 应变波齿轮的第一和第二外齿齿轮部分通过波发生器弯曲成椭圆形，分别与第一和第二内齿齿轮啮合。 第一外齿齿轮部分和第二外齿齿轮部分被弯曲成椭圆形，它们的相位围绕旋转中心线彼此旋转90度。 在第一和第二外齿齿轮部分之间形成有保持没有变形的圆形横截面形状的联接外齿齿轮部分。 联接外齿齿轮部分被保持为以啮合的方式与联接内齿齿轮联接。 应变波传动具有较高的接合刚度，能够传递较大的转矩。

公开(公告)号：US20160298746A1

公开(公告)日：2016-10-13

申请号：US14758451

申请日：2013-11-19

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Satoshi KIYONO ,  Tatsuro HOSHINA ,  Masakatsu SASAHARA

IPC: F16H49/00

CPC classification number: F16H49/001 ,  F16H2049/003

Abstract: An externally toothed gear of a strain wave gearing is made to flex into a shape conforming to an ellipsoidal curve. The externally toothed gear meshes with an internally toothed gear at the major-diameter position of the ellipsoidal curve. These two meshing positions gradually change in the circumferential direction of the both gears along the tooth trace direction. The number of external teeth of the externally toothed gear participating in meshing with the internally toothed gear can be increased. A strain wave gearing which has a high rigidity and is capable of reducing vibrational noise, can be realized.

Abstract translation: 使应变波传动装置的外齿齿轮弯曲成符合椭圆曲线的形状。 外齿轮在椭圆曲线的大直径位置处与内齿齿轮啮合。 这两个啮合位置沿着齿迹方向在两个齿轮的圆周方向上逐渐变化。 可以增加参与与内齿轮啮合的外齿齿轮的外齿数。 可以实现具有高刚性并能够降低振动噪声的应变波传动装置。