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1387 条记录 (耗时 0.023 秒)

    ACTUATOR
    61.
    发明授权
    ACTUATOR 有权

    公开(公告)号：EP2962005B1

    公开(公告)日：2018-10-17

    申请号：EP14707742.4

    申请日：2014-02-28

    申请人： Per Stensgaard Innovasjon AS

    发明人： STENSGAARD, Per

    IPC分类号： F16D28/00 ,  F16H25/22

    CPC分类号： F16H25/2204 ,  F16D28/00 ,  F16D2023/123 ,  F16H25/20 ,  F16H25/22 ,  F16H25/24 ,  F16H2025/2059 ,  F16H2025/2071

    摘要： An actuator converting a rotary movement into a linear movement is disclosed. The actuator includes a drive means (11), a primary low friction screw mechanism (3, 6, 14) driven by the drive means, a secondary traditional screw mechanism (7, 13) which is connected to the primary screw mechanism and moved linearly by this. The secondary screw mechanism transfers the linear movement to a driven means, such as a clutch. The primary screw mechanism is performing the working stroke proper, while the secondary screw mechanism is arranged to compensate for changes in the engagement point of the driven means. One of the screw mechanisms is provided with a spring (4) making the actuator self-regulating.

    Assembly apparatus for ball screw device
    63.
    发明授权
    Assembly apparatus for ball screw device 有权

    公开(公告)号：EP1775063B1

    公开(公告)日：2018-07-11

    申请号：EP06021365.9

    申请日：2006-10-11

    申请人： NSK Ltd.

    发明人： Tokura, Shigeo ,  Chiba, Kazuyasu ,  Zhang, Zongxuan

    IPC分类号： B23P19/00 ,  F16H25/22 ,  F16H25/24

    CPC分类号： F16H25/2204 ,  B23P19/001 ,  B23P19/004 ,  F16H2025/2481 ,  Y10T29/49828 ,  Y10T29/49853 ,  Y10T74/19744 ,  Y10T74/19749 ,  Y10T74/19753 ,  Y10T74/19758 ,  Y10T74/19767

    摘要： An assembly apparatus (15) for assembling a ball screw device (1) includes a support block (43), a nut (4) arranged in a longitudinal direction, a nut reception base (40) that arranges the nut (4) so that its axial direction towards vertical direction of the assembly apparatus (15) and that supports the nut so as to elevate the nut with respect to the support block (43), a temporary shaft (16) inserted into an inner diameter side of the nut arranged on the nut reception base (40) and rotatably supported by the support block (43), an inclined face provided at a forward end portion of the temporary shaft (16), for guiding balls (7) into the nut raceway groove (5) and a pushing mechanism that has elasticity in the radial direction of the temporary shaft and that pushes balls which are fed into the nut raceway groove by a forward end portion protruding from the outer circumferential face of the temporary shaft.

    BALL SCREW AND SEAL USED THEREIN
    64.
    发明公开
    BALL SCREW AND SEAL USED THEREIN 审中-公开

    公开(公告)号：EP3343068A1

    公开(公告)日：2018-07-04

    申请号：EP18157962.4

    申请日：2014-11-27

    申请人： NSK LTD.

    发明人： MIYAZAKI, Kazunari ,  MARUYAMA, Daisuke

    IPC分类号： F16H25/24 ,  F16H25/22 ,  F16H57/04

    CPC分类号： F16H57/0464 ,  F16H25/2204 ,  F16H25/2418 ,  F16H57/0497

    摘要： There are provided a ball screw that more efficiently prevents accumulation and scattering of extra grease in a nut and a seal used in the ball screw. In order to do that, in a ball screw (1), a grease reservoir portion (33) is provided on an inner peripheral surface of a seal (30) provided at at least one end of ends of a nut (20) in a moving direction of the nut (20) so as to form a space with respect to a screw shaft (10) . The grease reservoir portion is open to an outer peripheral surface of the seal (30) and communicates with slits (34) formed on the outer peripheral surface of the seal (30) .

    BALL SCREW, MACHINE TOOL, AND CONVEYING DEVICE
    65.
    发明公开
    BALL SCREW, MACHINE TOOL, AND CONVEYING DEVICE 审中-公开

    公开(公告)号：EP3324077A4

    公开(公告)日：2018-06-20

    申请号：EP16824387

    申请日：2016-07-07

    申请人： NSK LTD

    发明人： MORIYAMA MASAHITO

    IPC分类号： F16H25/22 ,  F16H25/24

    CPC分类号： F16H25/2214 ,  F16H25/2219 ,  F16H25/24 ,  F16H2025/249

    摘要： There is provided a ball screw, a machine tool, and a conveying device that achieve the suppression of the vibration even when the nut rotates at high speed and the reduction of the manufacturing cost. The ball screw (1) includes a screw shaft (10), a nut body (20A), rolling bodies (30), a synthetic-resin covering member (40), and a circulation member (50). The covering member (40) has a tube shape arranged coaxially with the nut body (20A) to cover the outer peripheral surface of the nut body (20A) . A groove part (41) formed on the inner peripheral surface of the covering member (40) and the outer peripheral surface (20a) of the nut body (20A) form a rolling-body return path (70). The covering member (40) is provided with an engagement part (43) engaged with a cutout part (53) formed on the outer peripheral surface of the circulation member (50).

    ELECTRIC VENEER LATHE
    66.
    发明公开
    ELECTRIC VENEER LATHE 审中-公开

    公开(公告)号：EP3207284A4

    公开(公告)日：2018-05-16

    申请号：EP15851521

    申请日：2015-10-13

    申请人： USNR LLC

    发明人： DEZELLEM TIM ,  O'CONNELL KEVIN K ,  BRIDGES FREDERICK REEDER III

    IPC分类号： F16H25/20 ,  B27L5/02 ,  F16H25/22 ,  F16H25/24

    CPC分类号： B27L5/02 ,  B23Q15/013 ,  B27L5/00 ,  B27L5/025 ,  F16H25/2252 ,  F16H2025/2075

    摘要： Embodiments of an electric linear actuator may include a roller screw assembly, an electric motor coupled to the roller screw assembly, and a linear transducer operatively coupled with the roller screw assembly. The motor may be configured to drive the roller screw assembly to extend and retract another component, such as a rod. In some embodiments, the linear transducer may be configured to detect a position of the rod. The roller screw assembly may be coupled directly to the motor via a gear coupling, with the motor disposed generally in axial alignment with the roller screw assembly. Other embodiments disclosed herein include a veneer lathe carriage with electric linear actuators and corresponding apparatuses, methods, and systems.

    COOLING LIQUID DISCHARGE DEVICE, BALL SCREW APPARATUS
    68.
    发明公开
    COOLING LIQUID DISCHARGE DEVICE, BALL SCREW APPARATUS 审中-公开
    冷却液体排出装置，球螺钉装置

    公开(公告)号：EP3299665A1

    公开(公告)日：2018-03-28

    申请号：EP16814276.8

    申请日：2016-06-17

    申请人： NSK Ltd.

    发明人： YAMAMOTO, Shinpei ,  SUZUKI, Seiji

    IPC分类号： F16H25/24 ,  F16H25/22 ,  F16J15/447

    CPC分类号： F16H57/0497 ,  F16H25/22 ,  F16H25/2204 ,  F16H25/24 ,  F16H57/0412 ,  F16H57/043 ,  F16H57/045 ,  F16J15/447

    摘要： An object is to reduce the load on a driving device for turning a screw shaft (2) in a cooling liquid discharge apparatus (10) for use in a ball screw apparatus (100) used in a machine tool or the like to make the apparatus compact and to prevent an increase in the manufacturing cost. The cooling liquid discharge apparatus (10) according to the invention has a housing (14) that is provided with proximity portions (5d, 6f) that extend radially inwardly to be close to the screw shaft 2 and reservoirs (11, 12, 13) that temporally store cooling liquid (8), which are arranged alternately along the axial direction, and discharge ports (5e, 6e, 6g) through which cooling liquid (8) is discharged from the reservoirs (11, 12, 13) .

    摘要翻译： 本发明的目的在于减小用于在机床等中使用的滚珠丝杠装置（100）中使用的冷却液排出装置（10）中的用于转动丝杠轴（2）的驱动装置上的负载，以使该装置 紧凑并防止制造成本的增加。 根据本发明的冷却液体排出装置（10）具有壳体（14），壳体（14）设置有径向向内延伸以接近螺杆轴2的接近部分（5d，6f）和储存器（11,12,13） 临时存储沿轴向交替布置的冷却液体（8）和从储存器（11,12,13）排出冷却液体（8）的排出口（5e，6e，6g）。

    LINEAR DRIVE MECHANISM OF THE SCREW AND NUT TYPE WITH PERFECT ROLLING CONTACT
    69.
    发明公开
    LINEAR DRIVE MECHANISM OF THE SCREW AND NUT TYPE WITH PERFECT ROLLING CONTACT 审中-公开

    公开(公告)号：EP3295058A1

    公开(公告)日：2018-03-21

    申请号：EP16731658

    申请日：2016-05-12

    申请人： FONDAZIONE ST ITALIANO DI TECNOLOGIA

    发明人： FEATHERSTONE ROY

    IPC分类号： F16H25/22

    CPC分类号： F16H25/2295

    摘要： The mechanism (10) comprises a threaded shaft (12) extending along a longitudinal axis (z); a nut (14) arranged coaxially with the threaded shaft (12); a plurality of a plurality of rolling bearings (18) interposed between the threaded shaft (12) and the nut (14), each of the bearings (18) comprising an outer race (22) fixed to the nut (14), an inner race (20) which is arranged coaxially with the outer race (22) and is rotatable relative to the outer race (22) about an axis of rotation (z'), and a plurality of rolling members (24) interposed between the outer race (22) and the inner race (20); and a corresponding plurality of rings (16), each of which is fixed to the inner race (20) of a respective bearing (18) so as to rotate therewith about the same axis of rotation (z'), and is interposed between the inner race (20) of the bearing (18) and the threaded shaft (12) in such a manner that an inner surface (16a) of the ring is in contact with a screw thread (12a) of the threaded shaft (12). The rings (16) and the bearings (18) are arranged in such a manner that their respective axes of rotation (z') are both inclined by a first angle (α) and positioned at a first distance (α) with respect to the longitudinal axis (z) of the threaded shaft (12), said first angle (α) and said first distance (α) being the same for all the rings (16). The shape of the screw thread (12a) of the threaded shaft (12) and the shape of the inner surface (16a) of each ring (16) are configured in such a manner that each ring (16) is in perfect rolling contact with the threaded shaft (12) along a respective contact line (v) that is fixed relative to the nut (14) and is both inclined by a second angle (β) and positioned at a second distance (b) with respect to the longitudinal axis (z) of the threaded shaft (12).