公开(公告)号：US20140246279A1

公开(公告)日：2014-09-04

申请号：US13781796

申请日：2013-03-01

Applicant: MOOG INC.

Inventor： Seth GITNES

IPC: F16D59/02

CPC classification number: F16D59/02 ,  B64C13/50 ,  F16D49/00 ,  F16D2065/022 ,  F16D2121/22

Abstract: A power-off brake for stopping a rotating shaft comprises a solenoid including a coil and armature, an opposing plate axially spaced from the armature, and a ball carrier rotor between the armature and opposing plate. The ball carrier rotor rotates with the shaft and carries spherical balls in recesses angularly space about the shaft. The armature and opposing plate have respective braking surfaces. In one embodiment, at least one braking surface is ramped to urge the plurality of balls radially outward against an internal surface of a surrounding outer race as the armature is forced toward the opposing plate under spring loading when current to the solenoid coil is shut off. In another embodiment, the braking surfaces are not ramped, such that the balls are merely clamped between the braking surfaces upon solenoid deactivation. Increased rolling friction stops rotation of the ball carrier rotor and the shaft without problematic wear.

Abstract translation: 用于停止旋转轴的断电制动器包括螺线管，其包括线圈和电枢，与电枢轴向间隔开的相对板和在电枢和相对板之间的球载体转子。 球载体转子与轴一起旋转，并且在围绕轴的角度空间中的凹槽中承载球形球。 电枢和相对板具有相应的制动表面。 在一个实施例中，当电流到螺线管线圈的电流被切断时，当电枢在弹簧加载下被迫朝向相对的板时，至少一个制动表面倾斜以将多个滚珠径向向外压靠在周围的外圈的内表面上。 在另一个实施例中，制动表面不会斜坡，使得当螺线管停用时，球仅被夹紧在制动表面之间。 增加的滚动摩擦阻止了球载体转子和轴的旋转，而没有磨损。

公开(公告)号：US20150018155A1

公开(公告)日：2015-01-15

申请号：US13937638

申请日：2013-07-09

Applicant: Moog Inc.

Inventor： Seth GITNES

IPC: F16D7/00

CPC classification number: F16D7/00 ,  B64C13/28 ,  F16D7/024 ,  F16H35/10 ,  Y02T50/44

Abstract: A torque limiter limits transmission of torque between an input shaft an output shaft. The torque limiter may be incorporated in a geared rotary actuator for actuating an aircraft control surface. The torque limiter is responsive to output torque associated with the output shaft instead of input torque associated with the input shaft. The torque limiter includes a structural ground and a gear assembly for transmitting rotational motion of the input shaft to the output shaft. The gear assembly includes a reference gear coupled to the structural ground such that movement of the reference gear relative to the structural ground is dependent upon an output torque at the output shaft. The reference gear is stationary relative to the structural ground when the output torque is below an output torque limit, and the reference gear moves relative the structural ground when the output torque exceeds the output torque limit.

Abstract translation: 扭矩限制器限制输入轴与输出轴之间的转矩传递。 扭矩限制器可以结合在用于致动飞行器控制表面的齿轮旋转致动器中。 转矩限制器响应于与输出轴相关联的输出转矩，而不是与输入轴相关联的输入转矩。 扭矩限制器包括结构地面和用于将输入轴的旋转运动传递到输出轴的齿轮组件。 齿轮组件包括联接到结构地面的参考齿轮，使得参考齿轮相对于结构地面的移动取决于输出轴处的输出扭矩。 当输出转矩低于输出转矩极限时，参考齿轮相对于结构接地固定，当输出扭矩超过输出转矩极限时，参考齿轮相对于结构接地移动。