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公开(公告)号：US5832779A
公开(公告)日：1998-11-10
申请号：US819761
申请日：1997-04-03
申请人： Ronn G. Madrid , Don Hiller
发明人： Ronn G. Madrid , Don Hiller
CPC分类号： F16H25/20 , F16H2025/2068 , F16H2025/2071 , F16H2025/2081 , F16H2025/2463 , F16H25/2204 , F16H25/2454 , Y10T137/1797 , Y10T74/11 , Y10T74/18704
摘要： An actuator assembly for moving a member, such as a gate valve, or the like, between a retracted and extended position, and a locking device for locking the member in its extended position. A ball screw is connected to the member to be moved and is in threaded engagement with a ball nut so that, upon rotation of the ball nut, the ball screw, and therefore the member, moves between a retracted and an extended position. A gear train is connect able between a power source and the ball nut for transferring torque therebetween to rotate the nut member. The locking device cooperates with the actuator for quickly and easily locking the ball screw in an extended position at any time without requiring it to be retracted and then extended, and includes a plunger that moves axially in a housing in response to movement of the ball screw. The plunger has a reduced dimension portion, and a stem is provided that has a reduced dimension portion and a regular dimension portion. The stem is movable in the housing to a first position in which its reduced dimension portion aligns with the reduced dimension portion of the plunger to permit movement of the plunger, and therefore the member, from the predetermined position. The stem is also movable to a second position in which its regular dimension portion aligns with the necked-down portion of the plunger so that the regular dimension portion of the plunger overlaps, and is blocked by, the corresponding regular-dimension of the stem to lock the plunger, and therefore the member, in the predetermined position.
摘要翻译： 用于在缩回和伸出位置之间移动诸如闸阀等构件的致动器组件和用于将构件锁定在其延伸位置的锁定装置。 滚珠丝杠连接到要移动的构件，并与滚珠螺母螺纹接合，使得当滚珠螺母旋转时，滚珠丝杠，因此构件在缩回位置和伸出位置之间移动。 齿轮系能够在电源和滚珠螺母之间连接，用于在其间传递扭矩以使螺母构件旋转。 锁定装置与致动器配合，用于在任何时候快速且容易地将滚珠丝杠锁定在延伸位置，而不需要将其缩回并延伸，并且包括响应于滚珠丝杠的移动在壳体中轴向移动的柱塞 。 柱塞具有减小的尺寸部分，并且提供具有减小的尺寸部分和规则尺寸部分的杆。 杆可在壳体中移动到第一位置，在第一位置，其减小的尺寸部分与柱塞的减小的尺寸部分对准，以允许柱塞以及因此的构件从预定位置移动。 杆也可以移动到第二位置，在该第二位置，其规则尺寸部分与柱塞的颈缩部分对齐，使得柱塞的规则尺寸部分与杆的相应规则尺寸重叠并被其阻挡，从而 将柱塞因此将构件锁定在预定位置。
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公开(公告)号：US5329657A
公开(公告)日：1994-07-19
申请号：US964582
申请日：1992-10-21
CPC分类号： A61G7/002 , A47C20/041 , A61G7/018 , F16H2025/2071 , F16H2025/2463 , F16H25/20 , F16H25/2454 , Y10T74/18696 , Y10T74/18792
摘要： A hospital bed includes an articulatable patient support with a fowler portion movable between horizontal and inclined positions relative to a frame of the bed. A reversible electric drive motor is supported on the frame of the bed and, through a reduction gearing arrangement and a releasible coupling mechanism, can rotatably drive a threaded shaft. A nut engages and is held against rotation with the shaft, and a linkage arrangement couples the nut to the fowler portion to effect reciprocal movement of the fowler portion in response to reciprocal movement of the nut along the shaft. A manual release is provided on the fowler portion and, when actuated, disengages the releasible coupling mechanism so that the threaded shaft is free to rotate independently of the motor and gearing arrangement.
摘要翻译： 医院床包括可铰接的患者支架，其具有可相对于床的框架在水平位置和倾斜位置之间移动的拾音器部分。 可逆电驱动马达支撑在床架上，通过减速装置和可释放的联接机构可旋转地驱动螺纹轴。 螺母接合并且与轴保持抵抗旋转，并且联动装置将螺母连接到引脚部分，以响应于螺母沿着轴的往复运动而实现引脚部分的往复运动。 在引脚部分上设置手动释放装置，并且当被致动时，释放可释放的联接机构，使得螺纹轴独立于马达和传动装置自由旋转。
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公开(公告)号：US4832550A
公开(公告)日：1989-05-23
申请号：US087082
申请日：1987-08-19
申请人： Sven W. Nilsson
发明人： Sven W. Nilsson
CPC分类号： F16H25/2427 , F16H25/2454 , F16H2025/2463
摘要： In a device for bringing about rotational braking in a screw and nut device incorporating a nut, which is rotatable and displaceable relative to a threaded bar, and a helical spring enclosing the bar, which spring at braking is clamped against the bar, for effecting a big braking moment and a small wear in the thread of the bar, there is arranged a helical element with a loose fit in the thread groove of the bar, which element extends radially outside the thread flank tip. The helical spring is futhermore arranged with radial pretension of the thread flank tip between the winding turns of the helical element.
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公开(公告)号：US4246991A
公开(公告)日：1981-01-27
申请号：US900238
申请日：1978-04-26
CPC分类号： F16D59/00 , B64C13/28 , F16D49/02 , F16H25/20 , F16H2025/2093 , F16H2025/2463 , F16H2035/005 , F16H25/2204 , F16H25/2454
摘要： A mechanism is disclosed which produces linear motion from a rotating input while preventing the transmission of back forces in either direction. The mechanism includes a housing with an output shaft mounted for rotation within the housing. A rotatable input drive means is mounted coaxial with the shaft. The drive means includes a radially extending impelling portion. The output shaft extends axially on both sides of the impelling portion. A tubular hub is fixedly mounted on the housing and extends around the output shaft on each side of the impelling portion of the drive means. A pair of coil springs are wrapped around the output shaft with one spring on each side of the impelling portion of the drive means. Each spring has a release toe at one end which extends axially to the impelling portion and which is capable of being engaged by the impelling portion upon rotation of the drive means. The other end of each spring engages the shaft, so that the spring rotates with the shaft. A portion of each spring has a relaxed outer diameter larger than the inner diameter of the hub, so that the springs engage the hub when relaxed. Means are provided for producing linear motion from the rotation of the output shaft.
摘要翻译： 公开了一种从旋转输入产生线性运动同时防止在任一方向上传递反力的机构。 该机构包括具有安装用于在壳体内旋转的输出轴的壳体。 可旋转的输入驱动装置与轴同轴地安装。 驱动装置包括径向延伸的推进部分。 输出轴在推进部分的两侧轴向延伸。 管状轮毂固定地安装在壳体上并围绕驱动装置的推进部分的每一侧的输出轴延伸。 一对螺旋弹簧围绕输出轴缠绕，在驱动装置的推动部分的每一侧具有一个弹簧。 每个弹簧在其一端具有释放脚趾，其在轴向延伸到推进部分，并且能够在驱动装置旋转时与推动部分接合。 每个弹簧的另一端接合轴，使弹簧与轴一起旋转。 每个弹簧的一部分具有比毂的内径大的松弛的外径，使得当放松时弹簧与毂接合。 提供用于从输出轴的旋转产生直线运动的装置。
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公开(公告)号：US20160089121A1
公开(公告)日：2016-03-31
申请号：US14864432
申请日：2015-09-24
申请人： HOLOGIC, INC.
发明人： Joseph A. Stand, III , Kevin M. Thompson , Christian M. Ulm , Arnold Oyola , Fareeha Safir , Daniel Robertson , Thomas Fisk , Peter Wolton
CPC分类号： A61B10/0266 , A61B10/0275 , A61B2010/0208 , F16H25/20 , F16H25/2454 , F16H2025/2081 , F16H2025/2463
摘要： A biopsy system driver includes a motor having a rotatable output shaft, a support structure, a drive shaft, an elongate lead screw and a biopsy instrument drive member. The drive shaft is rotatably coupled to the support structure and includes or is otherwise operatively connected to the motor output shaft such that activation of the motor rotates the drive shaft. The elongate lead screw is coupled to the drive shaft such that rotation of the drive shaft rotates the lead screw about an axis of the lead screw. The lead screw is axially translatable relative to the drive shaft and to the support structure. The biopsy instrument drive member is threadably coupled to the lead screw such that rotation of the lead screw causes axial translation of one of the lead screw and biopsy instrument drive member relative to the other one and to the support structure.
摘要翻译： 活检系统驱动器包括具有可旋转输出轴的电动机，支撑结构，驱动轴，细长导螺杆和活检器械驱动构件。 驱动轴可旋转地联接到支撑结构并且包括或以其他方式可操作地连接到电动机输出轴，使得电动机的启动使驱动轴旋转。 细长导螺杆联接到驱动轴，使得驱动轴的旋转使丝杠围绕导螺杆的轴线旋转。 导螺杆相对于驱动轴和支撑结构可轴向平移。 活检器械驱动构件螺纹连接到导螺杆，使得导螺杆的旋转使得导螺杆和活检器械驱动构件中的一个相对于另一个轴向平移并且到支撑结构。
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公开(公告)号：US08733192B2
公开(公告)日：2014-05-27
申请号：US13045650
申请日：2011-03-11
申请人： Chou-Hsin Wu
发明人： Chou-Hsin Wu
CPC分类号： F16H25/20 , E05Y2201/49 , F16D13/08 , F16D41/04 , F16D41/20 , F16D41/206 , F16D2125/38 , F16D2125/40 , F16H19/02 , F16H25/2454 , F16H2025/2084 , F16H2025/209 , F16H2025/2463 , Y10T74/18576 , Y10T74/18664 , Y10T74/18704 , Y10T74/18792 , Y10T74/19833
摘要： A high-load linear actuator includes a driving mechanism, a worm shaft, a worm wheel assembly, a lead screw, a telescopic pipe and an outer pipe. The driving mechanism includes a base and a motor. The base has a supporting portion and an accommodating portion. The motor is fixed to the supporting portion. The worm shaft extends from the motor into the supporting portion. The worm wheel assembly includes a worm wheel and two bearings for supporting the worm wheel in the accommodating portion. The worm wheel is drivingly engaged with the worm shaft. The lead screw is disposed through the worm wheel and driven by the motor for rotation. The telescopic pipe slips on the lead screw to be threadedly connected therewith. The outer pipe slips on the telescopic pipe. The rotation of the lead screw drives the telescopic pipe to linearly extend or retract relative to the outer pipe.
摘要翻译： 高负载线性致动器包括驱动机构，蜗杆轴，蜗轮组件，导螺杆，伸缩管和外管。 驱动机构包括基座和马达。 基座具有支撑部分和容纳部分。 马达固定在支撑部上。 蜗杆轴从电机延伸到支撑部分。 蜗轮组件包括蜗轮和用于在容纳部分中支撑蜗轮的两个轴承。 蜗轮与蜗杆轴驱动接合。 导螺杆通过蜗轮设置并由马达驱动旋转。 伸缩管在导螺杆上滑动以与其螺纹连接。 外管在伸缩管上滑动。 导螺杆的旋转驱动伸缩管相对于外管线性延伸或缩回。
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公开(公告)号：US08516914B2
公开(公告)日：2013-08-27
申请号：US12990698
申请日：2009-04-27
申请人： Jürgen Osterlänger , Ralf Mayer , Manfred Kraus , Thomas Mehlis , Stefanie Bärthlein , Meinhard Schmidt , Thomas Dirnberger , Tobias Noss , Falk Heinrich
发明人： Jürgen Osterlänger , Ralf Mayer , Manfred Kraus , Thomas Mehlis , Stefanie Bärthlein , Meinhard Schmidt , Thomas Dirnberger , Tobias Noss , Falk Heinrich
CPC分类号： B60G7/006 , B60G2200/422 , B60G2200/46 , B60G2200/462 , B60G2204/46 , B62D17/00 , F16D49/04 , F16D51/02 , F16H25/2454 , F16H2025/2463 , Y10T74/1816 , Y10T74/18576 , Y10T74/18688 , Y10T74/18704
摘要： A suspension actuator (1) for positioning a movably mounted component of a motor vehicle suspension, including a first actuator component (4), which is to be connected to the movably mounted component, and a second actuator component (3), which is to be connected to a fixed suspension component, wherein both actuator components can be axially adjusted relative to one another via a ball-type linear drive (5), which includes a threaded spindle (6) and a nut (7) running thereon. Either the nut can be driven via a drive motor (10) for the axial adjustment of the threaded spindle or the spindle can be driven via a drive motor for axial adjustment of the nut. A brake unit (14, 28), which can be actuated by an external force on the suspension side and acts on the nut (7) or the spindle and rotates them, and which builds up a friction torque opposing a nut rotation or the spindle rotation, which acts between the nut (7) or the spindle (6) and a fixed actuator element (22, 35) or between a drive shaft of the drive motor (10) and a fixed actuator element (45) associated therewith, is provided.
摘要翻译： 一种用于定位机动车悬架的可移动安装的部件的悬架致动器（1），包括要连接到可移动安装部件的第一致动器部件（4）和第二致动器部件（3） 连接到固定的悬挂部件，其中两个致动器部件可以经由球形线性驱动器（5）相对于彼此轴向调节，所述滚珠式线性驱动器包括螺纹主轴（6）和在其上运行的螺母（7）。 螺母可以通过驱动马达（10）驱动以用于螺纹主轴的轴向调节，或者可以通过用于轴向调节螺母的驱动马达驱动主轴。 制动单元（14,28），其能够由悬架侧的外力驱动并作用在螺母（7）或主轴上并使其旋转，并且产生与螺母旋转或主轴相反的摩擦转矩 在螺母（7）或主轴（6）和固定的致动器元件（22,35）之间或驱动马达（10）的驱动轴与与其相关联的固定致动器元件（45）之间作用的旋转是 提供。
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公开(公告)号：US08322244B2
公开(公告)日：2012-12-04
申请号：US11389292
申请日：2006-03-24
申请人： Johannes Bucher
发明人： Johannes Bucher
CPC分类号： F16K31/047 , F16H25/2454 , F16H2025/2463 , F16H2035/005 , Y10T74/18696 , Y10T74/18704 , Y10T74/19702
摘要： A gear mechanism arrangement includes an axial bearing apparatus and a shaft mounted rotatably in the axial bearing apparatus. The shaft is fixedly coupled to a first mechanical coupling point and a second mechanical coupling point, the first mechanical coupling point configured to engage a gear stage and the second mechanical configured to engage a movement converter. The movement converter is configured to convert between a rotational movement and a longitudinal movement of the gear mechanism arrangement. The axial bearing apparatus is configured to transmit a force which acts axially on the shaft to a stationary part of the gear mechanism apparatus arrangement. The axial bearing apparatus is further configured such that active bearing friction is dependent on a rotational direction of the rotational movement and differs for each of first and second rotational directions of the rotational movement.
摘要翻译： 齿轮机构装置包括轴向轴承装置和可旋转地安装在轴向轴承装置中的轴。 所述轴固定地联接到第一机械联接点和第二机械联接点，所述第一机械联接点被配置为接合齿轮级，并且所述第二机构构造成接合运动转换器。 运动转换器构造成在齿轮机构装置的旋转运动和纵向运动之间进行转换。 轴向轴承装置构造成将轴上作用在轴上的力传递到齿轮机构装置装置的固定部分。 轴向轴承装置进一步构造成使得主动轴承摩擦取决于旋转运动的旋转方向，并且对于旋转运动的第一和第二旋转方向中的每一个而言是不同的。
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公开(公告)号：US20120096963A1
公开(公告)日：2012-04-26
申请号：US13248889
申请日：2011-09-29
申请人： Chih-Li HUNG
发明人： Chih-Li HUNG
IPC分类号： F16H25/12
CPC分类号： F16H25/2454 , F16H25/20 , F16H2025/2031 , F16H2025/2065 , F16H2025/2071 , F16H2025/2084 , F16H2025/209 , F16H2025/2463
摘要： An electric push rod and release mechanism combination structure includes an electric push rod assembly using a coupling for connection to movable frame parts of an equipment and a motor to rotate a transmission screw rod through a reducing gear set in moving a retractable tube set between an extended position and a received position, and a release mechanism consisting of a mounting socket, a connection socket, a torsion spring, a clutch module and an operating device and connected between the retractable tube set and the coupling of the electric push rod assembly for operation by a user to release the retractable tube set from the coupling safely with less effort.
摘要翻译： 电动推杆和释放机构组合结构包括电动推杆组件，其使用连接到设备的可移动框架部件的联接器和电动机，以使传动螺杆通过减速齿轮组旋转，以在伸缩管 位置和接收位置，以及由安装插座，连接插座，扭力弹簧，离合器模块和操作装置组成的释放机构，并且连接在可伸缩管组和电动推杆组件的联接器之间，用于操作 用户以较少的努力安全地从联轴器释放可缩回管组。
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公开(公告)号：US20110107859A1
公开(公告)日：2011-05-12
申请号：US12990698
申请日：2009-04-27
申请人： Jurgen Osterlanger , Ralf Mayer , Manfred Kraus , Thomas Mehlis , Stefanie Barthlein , Meinhard Schmidt , Thomas Dirnberger , Tobias Noss , Falk Heinrich
发明人： Jurgen Osterlanger , Ralf Mayer , Manfred Kraus , Thomas Mehlis , Stefanie Barthlein , Meinhard Schmidt , Thomas Dirnberger , Tobias Noss , Falk Heinrich
IPC分类号： F16H25/20
CPC分类号： B60G7/006 , B60G2200/422 , B60G2200/46 , B60G2200/462 , B60G2204/46 , B62D17/00 , F16D49/04 , F16D51/02 , F16H25/2454 , F16H2025/2463 , Y10T74/1816 , Y10T74/18576 , Y10T74/18688 , Y10T74/18704
摘要： A suspension actuator (1) for positioning a movably mounted component of a motor vehicle suspension, including a first actuator component (4), which is to be connected to the movably mounted component, and a second actuator component (3), which is to be connected to a fixed suspension component, wherein both actuator components can be axially adjusted relative to one another via a ball-type linear drive (5), which includes a threaded spindle (6) and a nut (7) running thereon. Either the nut can be driven via a drive motor (10) for the axial adjustment of the threaded spindle or the spindle can be driven via a drive motor for axial adjustment of the nut. A brake unit (14, 28), which can be actuated by an external force on the suspension side and acts on the nut (7) or the spindle and rotates them, and which builds up a friction torque opposing a nut rotation or the spindle rotation, which acts between the nut (7) or the spindle (6) and a fixed actuator element (22, 35) or between a drive shaft of the drive motor (10) and a fixed actuator element (45) associated therewith, is provided.
摘要翻译： 一种用于定位机动车悬架的可移动安装的部件的悬架致动器（1），包括要连接到可移动安装部件的第一致动器部件（4）和第二致动器部件（3） 连接到固定的悬挂部件，其中两个致动器部件可以经由球形线性驱动器（5）相对于彼此轴向调节，所述滚珠式线性驱动器包括螺纹主轴（6）和在其上运行的螺母（7）。 螺母可以通过驱动马达（10）驱动以用于螺纹主轴的轴向调节，或者可以通过用于轴向调节螺母的驱动马达驱动主轴。 制动单元（14,28），其能够由悬架侧的外力驱动并作用在螺母（7）或主轴上并使其旋转，并且产生与螺母旋转或主轴相反的摩擦转矩 在螺母（7）或主轴（6）和固定的致动器元件（22,35）之间或驱动马达（10）的驱动轴与与其相关联的固定致动器元件（45）之间作用的旋转是 提供。
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