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    Failsafe electro-mechanical actuator
    3.
    发明授权
    Failsafe electro-mechanical actuator 有权

    公开(公告)号：US12179911B2

    公开(公告)日：2024-12-31

    申请号：US17987366

    申请日：2022-11-15

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Derick S. Balsiger ,  Keith A. Bloxham

    IPC: B64C13/34 ,  B64C13/50 ,  F16D27/108 ,  F16D27/14 ,  F16H49/00

    Abstract: A failsafe electro-mechanical actuator, the actuator having: an output shaft having a first and second ends spaced apart from each other along a shaft axis, and outwardly facing helical grooves formed along the first end; a motor shaft surrounding the output shaft; a harmonic drive between the motor and output shafts that transfers motion between these shafts in a first mode of operation; ball bearings seated at the first end of the motor shaft and project inwardly from the motor shaft; in the first mode of operation: the ball bearings are disengaged from the output shaft and the output shaft rotates with the motor shaft, and in a second mode of operation, the motor shaft axially moves toward the first end of the output shaft; the motor shaft is rotationally fixed; and the ball bearings engage the helical grooves in the output shaft, whereby the output shaft rotates.

    Strain wave gear differential with high gear reduction
    5.
    发明授权
    Strain wave gear differential with high gear reduction 有权

    公开(公告)号：US12215770B1

    公开(公告)日：2025-02-04

    申请号：US18390332

    申请日：2023-12-20

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Derick S. Balsiger ,  Keith A. Bloxham

    IPC: F16H49/00 ,  F16H35/00

    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
    6.
    发明公开
    HARMONIC DRIVE WITH FLEX SPLINE END CLAMPS 审中-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

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Derick S. Balsiger ,  Keith A. Bloxham

    IPC: F16H49/00 ,  B64C13/38

    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.

    HARMONIC DRIVE ASSEMBLY WITH SELECTIVE DISCONNECT AND METHOD
    7.
    发明申请
    HARMONIC DRIVE ASSEMBLY WITH SELECTIVE DISCONNECT AND METHOD 有权
    具有选择性连接和方法的谐波驱动装置

    公开(公告)号：US20160010701A1

    公开(公告)日：2016-01-14

    申请号：US14325918

    申请日：2014-07-08

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Derick S. Balsiger ,  Keith A. Bloxham

    IPC: F16D27/14 ,  B64C13/42 ,  B64C13/34 ,  H02K7/116 ,  F16H49/00

    CPC classification number: F16D27/14 ,  B64C13/34 ,  B64C13/42 ,  F16D27/108 ,  F16H49/001 ,  H02K7/116

    Abstract: A harmonic drive assembly with selective disconnect includes a motor with a motor drive shaft, a harmonic drive operatively coupled to the motor drive shaft, and a wave generator operatively coupled to the motor drive shaft and a flex gear of the harmonic drive. Also included is a ring gear of the harmonic drive operatively coupled to the flex gear with a plurality of ring gear teeth configured to mesh with a plurality of flex gear teeth. Further included is an output shaft operatively coupled to the harmonic drive. Yet further included is a retracting mechanism configured to selectively retract the motor drive shaft and the wave generator to decouple the motor drive shaft and the wave generator from the harmonic drive, wherein a clearance between the ring gear teeth and the flex gear teeth is established upon retraction of the motor drive shaft and the wave generator.

    Abstract translation: 具有选择性分离的谐波驱动组件包括具有马达驱动轴的马达，可操作地耦合到马达驱动轴的谐波驱动器，以及可操作地耦合到马达驱动轴和谐波驱动器的弯曲齿轮的波发生器。 还包括谐波驱动器的齿圈，其可操作地联接到柔性齿轮，多个齿圈齿配置成与多个弯曲齿轮齿啮合。 还包括可操作地耦合到谐波驱动器的输出轴。 还包括一种缩回机构，其构造成选择性地缩回电动机驱动轴和波发生器以将电动机驱动轴和波发生器与谐波驱动器分离，其中，齿圈齿和挠性齿轮齿之间的间隙建立在 电机驱动轴和波发生器的回缩。

    Harmonic drive with flex spline end clamps
    8.
    发明授权
    Harmonic drive with flex spline end clamps 有权

    公开(公告)号：US12215769B2

    公开(公告)日：2025-02-04

    申请号：US18168178

    申请日：2023-02-13

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Derick S. Balsiger ,  Keith A. Bloxham

    IPC: F16H49/00 ,  B64C13/38

    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.

    FAILSAFE ELECTRO-MECHANICAL ACTUATOR
    10.
    发明公开
    FAILSAFE ELECTRO-MECHANICAL ACTUATOR 审中-公开

    公开(公告)号：US20240158069A1

    公开(公告)日：2024-05-16

    申请号：US17987366

    申请日：2022-11-15

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Derick S. Balsiger ,  Keith A. Bloxham

    IPC: B64C13/34 ,  F16D27/108 ,  F16D27/14

    CPC classification number: B64C13/34 ,  F16D27/108 ,  F16D27/14 ,  F16H2049/003

    Abstract: A failsafe electro-mechanical actuator, the actuator having: an output shaft having a first and second ends spaced apart from each other along a shaft axis, and outwardly facing helical grooves formed along the first end; a motor shaft surrounding the output shaft; a harmonic drive between the motor and output shafts that transfers motion between these shafts in a first mode of operation; ball bearings seated at the first end of the motor shaft and project inwardly from the motor shaft; in the first mode of operation: the ball bearings are disengaged from the output shaft and the output shaft rotates with the motor shaft, and in a second mode of operation, the motor shaft axially moves toward the first end of the output shaft; the motor shaft is rotationally fixed; and the ball bearings engage the helical grooves in the output shaft, whereby the output shaft rotates.

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