Strain wave gear differential with high gear reduction

    公开(公告)号:US12215770B1

    公开(公告)日:2025-02-04

    申请号:US18390332

    申请日:2023-12-20

    Abstract: A harmonic drive, having: a ground ring; a first flex spline extending axially from the ground ring; a first input shaft that is radially exterior to the first flex spline, the first input shaft includes a first wave generator that engages the first flex spline; a second flex spline, radially within the first flex spline and rotationally coupled to the first flex spline, a second input shaft that is radially within the second flex spline, the second input shaft includes a second wave generator that engages the second flex spline; an output shaft coupled to the second flex spline, the first flex spline includes a first spline that faces radially inward; the second flex spline includes a second spline that faces radially outward; a circular gear having a third spline that face outwardly and engages the first spline; a fourth spline that faces radially inward and engages the second spline.

    HARMONIC DRIVE WITH FLEX SPLINE END CLAMPS
    33.
    发明公开

    公开(公告)号:US20240271687A1

    公开(公告)日:2024-08-15

    申请号:US18168178

    申请日:2023-02-13

    CPC classification number: F16H49/001 B64C13/38 F16H2049/003

    Abstract: A harmonic drive, having a housing extending from first to second outer ends, the housing has radial outer and inner walls that extend axially between the first and second outer ends of the housing to define an annular channel having first and second ends that taper toward the first and second outer ends of the housing; a flex spline that extends axially between first and second ends and has a radial outer surface, and the first and second ends of the flex spline taper radially outwardly, the flex spline is located within the annular channel so that the first end of the flex spline is located within the first end of the annular channel and the second end of the flex spline is located within the second end of the annular channel; and first and second clamps that are clamped against the first and second ends of the annular channel.

    Inverted compound harmonic drive
    34.
    发明授权

    公开(公告)号:US10823268B2

    公开(公告)日:2020-11-03

    申请号:US15229921

    申请日:2016-08-05

    Abstract: A compound harmonic drive including: a first internal ring gear; a second internal ring gear, the second internal ring gear being coaxial to the first internal ring gear; a first external gear located within the first internal ring gear and coaxial to the first internal ring gear, the first external gear meshes with the first internal ring gear; and a second external gear located within the second internal ring gear and coaxial to the second internal ring gear, the second external gear meshes with the second internal ring gear. The first internal ring gear and the second internal ring gear are composed of a flexible material.

    METHOD OF DEVELOPING SPLINE PROFILE
    36.
    发明申请

    公开(公告)号:US20190107188A1

    公开(公告)日:2019-04-11

    申请号:US15729300

    申请日:2017-10-10

    Abstract: A method of developing a flex spline and circular gear tooth profile for a harmonic actuator is provided. The method includes defining circular gear and flex spline centroids based on gear ratio calculations, finding mid-points between the centroids of the circular gear and the centroids of the flex spline and transforming the mid-points into a mapping of the tooth profile for respective teeth of the circular gear and the flex spline.

    INVERTED COMPOUND HARMONIC DRIVE
    37.
    发明申请

    公开(公告)号:US20180038467A1

    公开(公告)日:2018-02-08

    申请号:US15229921

    申请日:2016-08-05

    Abstract: A compound harmonic drive including: a first internal ring gear; a second internal ring gear, the second internal ring gear being coaxial to the first internal ring gear; a first external gear located within the first internal ring gear and coaxial to the first internal ring gear, the first external gear meshes with the first internal ring gear; and a second external gear located within the second internal ring gear and coaxial to the second internal ring gear, the second external gear meshes with the second internal ring gear. The first internal ring gear and the second internal ring gear are composed of a flexible material.

    FLEX SPLINE FOR USE WITH A COMPOUND HARMONIC GENERATOR

    公开(公告)号:US20170108107A1

    公开(公告)日:2017-04-20

    申请号:US14884935

    申请日:2015-10-16

    CPC classification number: F16H49/001 F16H2049/003

    Abstract: A method and system providing a flex spline for a compound harmonic generator having a harmonic wave generator, a primary ring gear, and a secondary ring gear, includes a primary flex spline with a first number of primary teeth, the primary flex spline driven by the harmonic wave generator and in meshed contact with the primary ring gear, and at least one secondary flex spline with a second number of secondary teeth, the at least one secondary flex spline driven by the harmonic wave generator and in meshed contact with the secondary ring gear, wherein the at least one secondary flex spline rotates independently from the primary flex spline.

    Harmonic drive and method of assembling
    40.
    发明授权
    Harmonic drive and method of assembling 有权
    谐波驱动和组装方法

    公开(公告)号:US09528587B2

    公开(公告)日:2016-12-27

    申请号:US14325879

    申请日:2014-07-08

    CPC classification number: F16H49/001 F16H2049/003 H02K7/116

    Abstract: A harmonic drive includes a flexible gear. Also included is a ring gear that meshes with the flexible gear. Further included is a rotor. Yet further included is a wave generator sleeve directly fitted over an outer surface of the rotor, wherein the wave generator sleeve is disposed radially within the flexible gear. Also included is a bearing assembly disposed between the wave generator sleeve and the flexible gear, wherein the wave generator rotates the flexible gear as the wave generator sleeve is rotated by the rotor.

    Abstract translation: 谐波驱动器包括一个柔性齿轮。 还包括与柔性齿轮啮合的齿圈。 还包括转子。 还包括直接安装在转子的外表面上的波发生器套筒,其中波浪发生器套筒径向地设置在柔性齿轮内。 还包括设置在波发生器套筒和柔性齿轮之间的轴承组件,其中当波发生器套筒被转子旋转时,波形发生器旋转柔性齿轮。

Patent Agency Ranking