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：US20170016523A1

公开(公告)日：2017-01-19

申请号：US15124788

申请日：2014-03-11

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Masaru KOBAYASHI ,  Tatsuro HOSHINA

IPC: F16H49/00

CPC classification number: F16H49/001 ,  F16C19/26 ,  F16C19/50 ,  F16C33/581

Abstract: The wave generator of the strain wave gear device comprises: a rigid plug; a roller bearing fitted on the elliptical outer circumferential surface thereof; and first and second cylindrical springs, which press loose rollers that have some play in the radial direction between the outer race and the inner race of the roller bearing against the outer raceway surface. The loose rollers are pressed against the outer raceway surface with a linear contact and roll according to the outer raceway surface. Skewing of the rollers is limited, ensuring smooth rotation of the roller bearing.

Abstract translation: 应变波齿轮装置的波发生器包括：刚性塞; 安装在其椭圆形外圆周表面上的滚子轴承; 以及第一和第二圆柱形弹簧，其压缩在滚子轴承的外座圈和内圈之间径向游隙的松动辊抵靠着外滚道表面。 松散的辊子根据外滚道表面以直线接触和滚动压靠在外滚道表面上。 滚子的倾斜受到限制，确保滚子轴承的平稳旋转。

公开(公告)号：US20170335941A1

公开(公告)日：2017-11-23

申请号：US15532857

申请日：2014-12-05

Applicant: Harmonic Drive Systems Inc.

Inventor： Tatsuro HOSHINA ,  Masaru KOBAYASHI ,  Akira NAGAI

IPC: F16H49/00 ,  F16H57/00

CPC classification number: F16H49/001 ,  F16H57/0025 ,  F16H2049/003

Abstract: A boss-side fastening surface formed in a boss of a flexible externally toothed gear of a strain wave gearing and a shaft-side fastening surface of an output shaft are coaxially fastened with bolts. The boss-side fastening surface is a convex-side fastening surface defined by two symmetrical inclined surfaces that are intersected at a prescribed angle to form a ridge line on a diameter line of the surface. The shaft-side fastening surface is a concave-side fastening surface defined by two symmetrical inclined surfaces that are intersected at a prescribed angle to form a trough line on a diameter line of the surface. The inclination angle of the inclined surfaces is set in the range of 2° to 16°. Transmission torques equal to or larger than those for combined bolt and pin fastening can be secured with bolt-only fastening.

公开(公告)号：US20160047451A1

公开(公告)日：2016-02-18

申请号：US14397526

申请日：2013-05-08

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Tatsuro HOSHINA ,  Yoshihide KIYOSAWA

IPC: F16H49/00 ,  F16C33/46 ,  F16C19/46

CPC classification number: F16H49/001 ,  F16C19/463 ,  F16C33/4641 ,  F16H2049/003

Abstract: A wave generator of a strain wave gearing has a rigid plug and a needle roller bearing mounted on the plug external peripheral surface. The plug external peripheral surface has a retainer engaging part for engaging with a retainer that would move in an axis line direction and for restricting the movement thereof along the axis line direction. The retainer has an outer ring engaging part for engaging with an outer ring that would move in the axis line direction and for restricting the movement thereof along the axis line direction. The movements of the retainer and the outer ring can be restricted without providing a separate member. A wave generator of a strain way gearing can be realized, which is provided with a roller bearing capable of restricting the movement of the outer ring with a simple structure.

Abstract translation: 应变波传动装置的波发生器具有安装在插头外周面上的刚性塞子和滚针轴承。 插头外周面具有保持器接合部，用于与将沿轴线方向移动并用于限制其沿着轴线方向的移动的保持器接合。 保持器具有外环接合部分，用于与将在轴线方向上移动并用于限制其沿着轴线方向的移动的外环接合。 可以限制保持器和外圈的移动，而不需要提供单独的构件。 可以实现应变传动装置的波发生器，其具有能够以简单的结构限制外圈的运动的滚子轴承。

公开(公告)号：US20180023678A1

公开(公告)日：2018-01-25

申请号：US15541390

申请日：2015-01-08

Applicant: Harmonic Drive Systems Inc.

Inventor： Masaru KOBAYASHI ,  Tatsuro HOSHINA

IPC: F16H49/00 ,  F16C33/46 ,  F16C19/30

CPC classification number: F16H49/001 ,  F16C19/225 ,  F16C19/26 ,  F16C19/305 ,  F16C33/4605 ,  F16C33/467

Abstract: A strain wave gearing has a wave generator provided with a plug and a roller bearing. The roller bearing is provided with flange plates fixed to both sides of the plug, and outer circumferential edge portions of the flange plates protrude outwardly from a plug outer circumferential surface so as to locate on both sides, in an axial line direction, of the raceway of rollers. The movements of the rollers in the axial line direction are constrained by the outer circumferential edge portions. The movement of retainer in the axial line direction is constrained by engaging with the rollers. The movement of each component part of the roller bearing in the axial line direction can be constrained without using additional components.

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。

公开(公告)号：US20160025203A1

公开(公告)日：2016-01-28

申请号：US14396504

申请日：2013-05-08

Applicant: Harmonic Drive Systems Inc.

Inventor： Tatsuro HOSHINA ,  Yoshihide Kiyosawa

IPC: F16H49/00 ,  F16C19/46

CPC classification number: F16H49/001 ,  F16C19/06 ,  F16C19/44 ,  F16C19/46 ,  F16C19/54 ,  F16C19/55 ,  F16C41/001 ,  F16H2049/003

Abstract: A wave generator of a hollow strain wave gearing has a rigid plug and a needle roller bearing. The needle roller bearing has an inner ring trajectory surface formed in the plug external peripheral surface, a flexible outer ring, an outer ring trajectory surface formed in an inner peripheral surface of the outer ring, and needle rollers. An inner ring trajectory groove is formed in the plug external peripheral surface, and the inner ring trajectory surface is formed in a groove bottom surface of the inner ring trajectory groove. Inner-ring-side restricting surfaces for restricting the needle rollers from moving in the center axis direction are formed in groove side surfaces on both sides of the inner ring trajectory groove. A wave generator can be obtained, which is suitable for increasing the hollow diameter of a strain wave gearing.

Abstract translation: 中空应变波传动装置的波发生器具有刚性塞子和滚针轴承。 滚针轴承具有形成在插塞外周面中的内环轨迹面，柔性外圈，形成在外圈内周面的外圈轨迹面以及滚针。 内圈轨迹槽形成在插塞外周面上，内圈轨迹面形成在内圈轨迹槽的槽底面。 在内圈轨迹槽的两侧的槽侧面形成有用于限制针辊在中心轴方向移动的内圈侧限制面。 可以获得波浪发生器，其适用于增加应变波传动装置的中空直径。