ACTUATOR DEVICE AND METHOD OF CONVERTING ROTATIONAL INPUT TO AXIAL OUTPUT WITH ROTARY FLEXURE MECHANISM
    2.
    发明公开

    公开(公告)号:EP2980451A1

    公开(公告)日:2016-02-03

    申请号:EP15178599.5

    申请日:2015-07-28

    发明人: BOOKER, Jesse W.

    IPC分类号: F16H19/06 F16H49/00 G02B7/182

    摘要: An actuator device (10) includes a motor (12) and a reduction device (14) operatively coupled to the motor (12) and oriented about a central axis (20). The reduction device (14) is configured to modify an input angle of rotation provided by the motor (12) to an output angle of rotation. Further included is a rotary flexure mechanism (30) that includes a rotary flexure (32) operatively coupled to an output portion of the reduction device (14). The rotary flexure mechanism (30) also includes a plurality of flexure blades (36) coupled to the rotary flexure (32), each of the flexure blades (36) angularly oriented from the central axis (20). The rotary flexure mechanism (30) further includes a diaphragm flexure pair (40,44) operatively coupled to the flexure blades (36). The diaphragm flexure pair (40,44) comprises a rotational and in-plane stiffness greater than an axial stiffness resulting in the rotary flexure mechanism (30) being configured to convert a rotational input to an axial translation.

    摘要翻译: 致动器装置(10)包括马达(12)和可操作地联接到马达(12)并且绕中心轴线(20)定向的减速装置(14)。 减速装置(14)构造成将由马达(12)提供的输入旋转角度修改为输出旋转角度。 还包括旋转弯曲机构(30),其包括可操作地联接到减速装置(14)的输出部分的旋转挠曲件(32)。 旋转弯曲机构(30)还包括耦合到旋转挠曲件(32)的多个挠性叶片(36),每个弯曲叶片(36)从中心轴线(20)成角度地取向。 旋转弯曲机构(30)还包括可操作地连接到挠性叶片(36)的隔膜挠曲对(40,44)。 隔膜弯曲对(40,44)包括大于轴向刚度的旋转和平面内刚度,导致旋转弯曲机构(30)构造成将旋转输入转换成轴向平移。