公开(公告)号：US12072010B2

公开(公告)日：2024-08-27

申请号：US18332282

申请日：2023-06-09

申请人： Goodrich Actuation Systems SAS

发明人： Karl Potier ,  Corentin Boitard

IPC分类号： F16H49/00 ,  B64C13/50 ,  F16H19/08

CPC分类号： F16H49/001 ,  B64C13/50 ,  F16H19/08 ,  F16H2049/003

摘要： A strain wave gear mechanism includes: a casing; an elliptical drive shaft; an outer ring arranged coaxially around the elliptical drive shaft and rotationally fixed to the casing, the outer ring having a toothed inner circumference; a flexible ring mounted around the elliptical drive shaft radially inwards of the outer ring, the flexible ring having a toothed outer circumference. Rotation of the elliptical drive shaft causes elliptical rotation of the flexible ring relative to the outer ring such that teeth of the flexible ring engage with teeth of the outer ring at points corresponding to the major axis of the ellipse of the drive shaft to cause movement of the flexible ring in a direction opposite to rotation of the drive shaft. The outer ring is rotationally fixed to the casing via a solenoid operated disconnect gear configured to selectively disconnect the outer ring from the casing.

公开(公告)号：US11981420B2

公开(公告)日：2024-05-14

申请号：US17584571

申请日：2022-01-26

申请人： Goodrich Actuation Systems SAS

发明人： Raphael Medina ,  Karl Potier ,  Corentin Boitard

IPC分类号： B64C13/34 ,  F16D41/12 ,  F16H37/04 ,  F16H61/12

CPC分类号： B64C13/34 ,  F16H37/04 ,  F16H61/12 ,  F16D41/12 ,  F16H2061/1296

摘要： An actuator system includes a motor and an actuator positioning member to be driven by the motor from a start position to an actuated position. The system also includes a harmonic drive assembly between the motor and the actuator positioning member arranged to transfer torque from the motor to the actuator positioning member at a gear ratio of greater than 1:1. The system further includes means for disconnecting the harmonic drive assembly in response to failure of the motor and/or torque transfer such as to allow the positioning member to return to the start position.