-
公开(公告)号：US12037101B2
公开(公告)日：2024-07-16
申请号：US17714534
申请日：2022-04-06
CPC分类号： B64C13/28 , B64C9/14 , F16D41/02 , F16D47/02 , B64D2045/001
摘要： A drive system for driving a movable flow body having a drive unit, a shaft, a torque sensing device, a no-back friction unit, and an axial bearing. The drive unit is coupled with the shaft to rotate the shaft, the torque sensing device is coupled with at least one of the drive unit and the shaft to detect a torque transferred from the drive unit into the shaft, the no-back friction unit is arranged between the axial bearing and an axial support means of the shaft, such that an axial load of the shaft is supported by the axial bearing, and the no-back friction unit is configured to substantially not counteract a rotation of the shaft in a first direction of rotation of the shaft and to apply a friction-induced additional torque to the shaft in an opposite second direction of rotation.
-
公开(公告)号：US11976711B2
公开(公告)日：2024-05-07
申请号：US17762875
申请日：2020-09-22
申请人： UMBRAGROUP S.P.A.
发明人： Nicola Borgarelli , Luciano Pizzoni
CPC分类号： F16H25/2214 , B64C13/28 , F16H2025/2075
摘要： Described is a mechanical transmission (T) comprising a containment structure (1) housing a roto-translational element (2), extending along an axis of rotation (X) and comprising a first and a second threaded portion (3, 4), a rotary element (5) connected or connectable to a drive unit to define a mechanical power input unit and equipped with a first thread (8) designed to engage rotatably with the first threaded portion (3) to the roto-translational element in such a way as to define a first threaded connection, a fixed guide (9) having a second thread (14) designed to engage with the second threaded portion (4) of the roto-translational element (2) in such a way as to define a second threaded connection, and a translating element (10), translating along the axis (X) and defining a power output unit. The translating element (10) is connected to the roto-translational element (2) for translating at the same linear speed as the roto-translational element (2). The roto-translational element (2) is thus simultaneously coupled to the rotary element (5) and to the fixed guide (9) respectively by means of the first and second threaded connections. These connections have different pitches in such a way as to vary the angular speed between the roto-translational element (2) and the rotary element (5).
-
公开(公告)号：US11906009B2
公开(公告)日：2024-02-20
申请号：US17812508
申请日：2022-07-14
申请人： Corindus, Inc.
发明人： Eric Klem
IPC分类号： A61B6/10 , A61B34/30 , A61B34/00 , A61B90/50 , B25J9/10 , B25J15/02 , B25J19/00 , F16D67/02 , F16D23/12 , B64C13/28 , B25J17/02 , G05B23/02 , F16D127/02 , F16D127/04 , F16D127/06 , F16D125/28 , F16D125/32 , F16D121/14
CPC分类号： F16D67/02 , A61B6/105 , B64C13/28 , A61B34/30 , A61B34/70 , A61B2090/508 , B25J9/101 , B25J9/106 , B25J15/0206 , B25J15/0226 , B25J17/0241 , B25J19/0004 , F16D2023/123 , F16D2121/14 , F16D2125/28 , F16D2125/32 , F16D2127/02 , F16D2127/04 , F16D2127/06 , G05B23/0286
摘要： An example rotational joint assembly for a robotic medical system, the rotational joint assembly comprising at least one arm segment and a rotational joint provided at one end of the arm segment. The rotational joint is to allow the arm segment to rotate about a rotational axis. The rotational joint comprising a brake to lock rotation of the arm segment at the rotational joint and an actuator to selectively engage or disengage the brake. The actuator comprising a cam having two stable regions separated by two transition regions, the two stable regions comprising a first stable region corresponding to engagement of the brake and a second stable region corresponding to disengagement of the brake.
-
公开(公告)号：US11866170B2
公开(公告)日：2024-01-09
申请号：US17615068
申请日：2020-07-07
发明人： Stefan Bensmann , Marcus Erban , Martin Fees
摘要： A movable flow body device for an aircraft including an elongated flow body having a main extension axis, a first mechanical interface in a first position along the main extension axis, a second mechanical interface in a second position and a third mechanical interface in a third position. The first mechanical interface may be a master interface arranged in a central region, while the second and third mechanical interfaces are slave interfaces. Preferably, in the outboard position, a link plate between a support lever and a support rib of the flow body is inverted compared to the further inboard mechanical interface, which allows for supporting slimmer and longer flow bodies in the outboard region and providing a rigging hinge line through the whole flow body.
-
公开(公告)号：US20230322364A1
公开(公告)日：2023-10-12
申请号：US18064347
申请日：2022-12-12
申请人： The Boeing Company
发明人： Lior Ungar , James A. Mehrtens
摘要： A no-back brake includes a torque tube and a brake. The brake is configured to be axially displaced in response to a force to prevent the torque tube from rotating. The brake includes a rotor that is concentric with the torque tube and that is fixed to the torque tube so that the rotor rotates with the torque tube. The brake includes a stator that is concentrically mounted on the torque tube so that the torque tube is rotatable relative to the stator. The brake includes a friction device located between the rotor and the stator. The friction device is configured to form a frictional coupling between the rotor and the stator that opposes relative rotational motion between the rotor and the stator when the brake is axially displaced. The frictional device includes a composite material.
-
公开(公告)号：US20190023378A1
公开(公告)日：2019-01-24
申请号：US15654963
申请日：2017-07-20
摘要： Control surface operating systems for controlling aerodynamic control surfaces of aircraft are provided. The systems includes a drive system operably connected to a drive shaft, the drive system including a continuously variable transmission, at least one actuator operably connected to the drive shaft and arranged to convert rotational movement of the drive shaft to move at least a portion of the aerodynamic control surface, and at least one control surface operably connected to the at least one actuator, wherein the at least one control surface is adjusted by the at least one actuator.
-
公开(公告)号：US20180244379A1
公开(公告)日：2018-08-30
申请号：US15441427
申请日：2017-02-24
申请人： The Boeing Company
发明人： Donald Guzman
摘要： Dual-input mechanical bypass linkage apparatus and methods are disclosed. An example dual-input mechanical bypass linkage apparatus includes a primary link and a secondary link spaced apart from the primary link. The dual-input mechanical bypass linkage apparatus further includes a first extension link extending between the primary link and the secondary link. The first extension link is coupled to the primary link, to the secondary link and to a first input link. The first input link is coupled to a first actuator. The primary link is coupled to a second input link. The second input link is coupled to a second actuator. The dual-input mechanical bypass linkage apparatus further includes a second extension link spaced apart from the first extension link and extending between the primary link and the secondary link. The second extension link is coupled to the primary link, to the secondary link and to an output link.
-
公开(公告)号：US10030756B2
公开(公告)日：2018-07-24
申请号：US15171733
申请日：2016-06-02
发明人： Dean Wilkens
CPC分类号： F16H49/001 , B64C13/04 , B64C13/18 , B64C13/24 , B64C13/28 , B64C13/34 , B64C13/341 , B64C27/605
摘要： An automatic actuator system is provided. The automatic actuator system includes an input linkage that receives an input and an output linkage adapted to control a flight surface actuator. The automatic actuator system includes a first strain wave gear having a first circular spline coupled to the input linkage and a first flex spline rotatably coupled to the first circular spline. The automatic actuator system includes a second strain wave gear having a second circular spline coupled to the first flex spline. The second strain wave gear includes a second flex spline, and the second flex spline is coupled to the output linkage such that at least a portion of the input from the input linkage is transferred to the output linkage via the first strain wave gear and the second strain wave gear.
-
9.发明申请公开(公告)号：US20180194454A1
公开(公告)日：2018-07-12
申请号：US15728539
申请日：2017-10-10
IPC分类号： B64C13/28
CPC分类号： B64C13/28 , B64C5/02 , B64C5/10 , B64C9/14 , B64C13/341 , B64C2009/005
摘要： A linear actuator, for controlling movement of a control surface of an aircraft, includes a screw, a primary load path and secondary nut engaged with the screw, and an engagement member. The engagement member moves from an ambush position, maintained by the primary load path or the secondary nut, to an engaged position, restricting relative movement between the primary load path and the secondary nut. The restricted relative movement may occur in response to free relative axial movement of the primary load path and the secondary nut caused by a failure of the primary load path of the linear actuator. A sensor of the linear actuator is configured to sense the failure of the primary load path and the free relative axial movement of the primary load path and the secondary nut.
-
公开(公告)号：US20170335932A1
公开(公告)日：2017-11-23
申请号：US15597348
申请日：2017-05-17
发明人： Dan T. Nguyen , Ted A. McKay
CPC分类号： F16H25/2214 , B64C13/28 , B64C13/36 , F16H25/2204 , F16H2025/2028 , F16H2025/2062
摘要： A rotary hydraulic actuator may be configured to output rotary motion to control a hinged surface of an aircraft. The actuator includes a nested ballscrew, ballnut, and output assembly that form concentric ball races for converting the linear motion and force of the linear actuator to rotary motion and torque of the output assembly that is connected to the hinged surface. One of the ball races is helically inclined and the other of the ball races is linear. The rotary hydraulic actuator may include a ball return structure that returns the balls from a loaded path of a ball race to an unloaded path of the ball race. The ball return structure may define a ball return path that is located at the same radial distance from the actuator centerline as the loaded path for minimizing the overall diameter of the actuator.
-
-
-
-
-
-
-
-
-
搜索结果
508 条记录 (耗时 0.025 秒)
