公开(公告)号：EP4130513B1

公开(公告)日：2024-07-03

申请号：EP22187819.2

申请日：2022-07-29

IPC分类号： F16H25/22 ,  F16H25/24

CPC分类号： F16H25/2204 ,  F16H25/2418 ,  F16H25/2219

公开(公告)号：EP3296594A4

公开(公告)日：2018-07-11

申请号：EP16796279

申请日：2016-04-26

申请人： NSK LTD

发明人： OOTANI YUSHI

IPC分类号： F16H25/24 ,  F16H25/22 ,  F16J15/46

CPC分类号： F16H25/22 ,  F16H25/2204 ,  F16H25/2223 ,  F16H25/24 ,  F16H25/2418 ,  F16H57/046 ,  F16H57/0497 ,  F16J15/46

摘要： There is provided a ball screw that can prevent entry of foreign matter into the inside of a nut even when the particle size of the foreign matter is very small. The ball screw includes a gas supply portion that supplies a gas to an inner space (S) formed between an outer peripheral surface of a screw shaft (1) and an inner peripheral surface of a nut (2); and seals (5) respectively attached to both axial ends of the inner peripheral surface of the nut (2) and sealing openings at axial ends of the inner space (S). The seals (5) have sealability such that a pressure in the inner space (S) becomes higher than a pressure outside the inner space (S) by the gas supplied from the gas supply portion.

公开(公告)号：EP2735770A4

公开(公告)日：2018-01-03

申请号：EP12814710

申请日：2012-07-19

申请人： NSK LTD

发明人： OKA KEITARO

IPC分类号： F16H25/24 ,  F16H25/22

CPC分类号： F16H25/2418 ,  F16H25/22 ,  F16H25/2204

摘要： A seal for a rolling screw capable of preventing an unintended contact with the threaded shaft, while maintaining advantages of a lip tilting perpendicularly to the axial direction, and the rolling screw using the seal are provided. In the seal for the rolling screw including: a circular ring part (16) secured to a nut of the rolling screw; and a lip part (17) in sliding contact with a threaded shaft (1a) of the rolling screw, the lip part (17) extends inward in the radial direction from the circular ring part (16) at a tilt angle with respect to a surface perpendicular to an axial direction of the threaded shaft, and bends in a direction to make the tilt angle smaller at a partway of the lip part.

公开(公告)号：EP3059469A4

公开(公告)日：2017-06-28

申请号：EP14865130

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 ,  F16J15/00

CPC分类号： F16H25/2418 ,  F16H25/2204 ,  F16H57/0406 ,  F16H57/0464 ,  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, a grease reservoir portion (33) is provided on an inner peripheral surface of a seal (30) provided at an end of a nut (20) on rear side of a moving direction of a ball screw so as to form a space with respect to a screw shaft (10). The grease reservoir portion (33) 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).

摘要翻译： 提供了一种滚珠丝杠，其更有效地防止螺母中的多余油脂的积聚和散布以及滚珠丝杠中使用的密封件。 为此，在设置于螺母（20）的滚珠丝杠的移动方向后方侧的端部的密封件（30）的内​​周面上设置有润滑脂积存部（33）， 相对于螺杆轴（10）形成空间。 润滑脂贮存部33向密封件30的外周面开口，并与形成于密封件30的外周面的狭缝34连通。

公开(公告)号：EP2735770A1

公开(公告)日：2014-05-28

申请号：EP12814710.5

申请日：2012-07-19

申请人： NSK Ltd.

发明人： OKA, Keitaro

IPC分类号： F16H25/24 ,  F16H25/22

CPC分类号： F16H25/2418 ,  F16H25/22 ,  F16H25/2204

摘要： A seal for a rolling screw capable of preventing an unintended contact with the threaded shaft, while maintaining advantages of a lip tilting perpendicularly to the axial direction, and the rolling screw using the seal are provided. In the seal for the rolling screw including: a circular ring part (16) secured to a nut of the rolling screw; and a lip part (17) in sliding contact with a threaded shaft (1a) of the rolling screw, the lip part (17) extends inward in the radial direction from the circular ring part (16) at a tilt angle with respect to a surface perpendicular to an axial direction of the threaded shaft, and bends in a direction to make the tilt angle smaller at a partway of the lip part.

摘要翻译： 本发明提供一种滚动丝杠用密封件，其能够防止与螺纹轴的意外接触，并且能够维持与轴向垂直的唇部倾斜的优点，并且能够提供使用了密封件的滚动丝杠。 在用于滚动螺杆的密封件中包括：固定到滚动螺杆的螺母上的圆环部件（16） 和与所述滚动螺杆的螺纹轴（1a）滑动接触的唇部（17），所述唇部（17）从所述圆环部（16）沿径向向内相对于所述螺旋轴 垂直于所述螺纹轴的轴向方向的表面，并且在使所述倾斜角度在所述唇部的中途处更小的方向上弯曲。

公开(公告)号：EP1553328A4

公开(公告)日：2011-02-23

申请号：EP03791279

申请日：2003-08-26

申请人： THK CO LTD

发明人： MICHIOKA HIDEKAZU ,  YATSUSHIRO DAISUKE ,  YOSHINO MASAHIKO

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

CPC分类号： F16H25/2418 ,  F16H25/2204 ,  F16H57/0497 ,  Y10T74/18568 ,  Y10T74/18576

公开(公告)号：EP1229578A4

公开(公告)日：2009-06-17

申请号：EP00942465

申请日：2000-07-03

申请人： THK CO LTD

发明人： YANAGISAWA KEN

IPC分类号： F16H25/24 ,  H02K7/06 ,  B23Q11/08 ,  B65G17/00 ,  B65G35/06 ,  B65G49/00 ,  B65G69/18 ,  F16C29/08 ,  H01L21/68

CPC分类号： F16H25/2418 ,  B65G17/002 ,  B65G69/186 ,  B65G2201/02 ,  F16H25/2204

摘要： A linear actuator (1), comprising a box type housing (2), wherein opening parts (27, 28) are formed in the upper surface of the housing along the moving route of projected parts (connection parts) (44b, 44c) of a moving stage (4), the opening parts (27, 28) are closed by dustproof belts (29, 30) disposed inside the housing, rollers (61 to 66) for bypassing the belts (29, 30) on the inside of the housing are installed on the moving stage (4) so that the belts (29, 30) do not interfere with the projected parts of the moving stage, whereby the opening parts (27, 28) can be closed surely by the dustproof belts (29, 30) and the generation of dust from the linear actuator can be prevented surely by taking in air through outside intake ports (7b, 8b) disposed near the opening parts (27, 28) and intake ports (22b, 23b) disposed inside the opening parts.

公开(公告)号：EP1921347A2

公开(公告)日：2008-05-14

申请号：EP07380298.5

申请日：2007-10-31

申请人： SENER, INGENIERIA Y SISTEMAS, S.A.

发明人： Vinals Abelan, José Javier ,  García Segovia, Ignacio ,  Jaio Gojenola, Germán

IPC分类号： F16H25/20

CPC分类号： F16H25/2021 ,  B64C13/42 ,  F16H25/2418 ,  F16H25/2472

摘要： Single actuation system with redundancies and safety device, that is made up of a hollow roller screw [1]; a coaxial safety bar [2], located inside the hollow roller screw [1] and connected to this in the free edge of the same; a redundant nut [5] located in the assembly formed by the screw [1] and the safety bar [2]; a no-back device [6] located on one edge of the assembly screw [1] - safety bar [2]; a torque limiter [7], located on the bottom part of the no-back device [6]; at least two motors [8]; at least two position sensors [9]; a safety device [10] jointed solidaritily to the coaxial safety bar [2]; a main bearing system [3], jointed solidaritily to the screw [1]; a support [4] of the assembly, joint as well to the actuation system as to the element to be actuated.

摘要翻译： 具有冗余和安全装置的单驱动系统，由空心滚子螺杆[1]组成; 一个同轴的安全杆[2]，位于空心滚柱螺钉[1]的内部，并在其自由边缘处连接到该安全杆上。 位于由螺钉[1]和安全杆[2]形成的组件中的冗余螺母[5]; 位于组装螺丝[1] - 安全杆[2]的一个边缘上的无背装置[6]; 位于无背装置[6]底部的扭矩限制器[7]; 至少有两台电机[8]; 至少两个位置传感器[9]; 一个安全装置[10]连接在同轴安全杆上[2]; 主轴承系统[3]，连接在螺钉上[1]; 组件的支撑件[4]，以及关于要致动元件的致动系统。

公开(公告)号：EP1369608A3

公开(公告)日：2005-06-01

申请号：EP03011642.0

申请日：2003-05-22

申请人： NSK LTD

发明人： Yabe, Takayuki

IPC分类号： F16C29/06 ,  F16C29/08

CPC分类号： F16C29/08 ,  F16C29/06 ,  F16H25/2204 ,  F16H25/2418 ,  Y10T74/18712 ,  Y10T74/18744

摘要： A ball screw has a screw shaft (1) including a screw groove (1a) formed in an outer peripheral surface thereof; a nut (2) including a screw groove (2a) formed in an inner peripheral surface thereof and screwed together with the screw shaft (1) through a large number of balls (3) rollably disposed in a spiral-shaped ball rolling passage (5) formed by the two screw grooves (1a,2a); and, two seals (4) respectively disposed on the two end portions of the nut (2) for sealing the opening of a clearance between the screw shaft (1) and the nut (2), wherein two annular grooves (2b) are respectively formed in the inner peripheral surfaces of the two end portions of the nut (2), each of the seals (4) is formed in a substantially annular-ring shape having an outside diameter larger than the inside diameter of the nut (2) and the seals (4) are mounted into the nut by fitting the outer edge portions of the seals (4) into the annular grooves (2b).

公开(公告)号：EP1477707A1

公开(公告)日：2004-11-17

申请号：EP03425315.3

申请日：2003-05-16

申请人： Umbra Cuscinetti S.p.A.

发明人： Perni, Federico ,  Pizzoni, Luciano ,  Pacieri, Francesca ,  Chiarappa, Marco

IPC分类号： F16H25/22 ,  F16J15/32

CPC分类号： F16H25/2418 ,  F16H25/2204 ,  Y10T74/18712 ,  Y10T74/19753

摘要： A ball screw has a spiral casing (6) mounted coaxially with a shaft (2); a set of balls interposed between the shaft (2) and the casing (6); and two seals (16) fitted between the shaft (2) and the casing (6) to define, together with the shaft (2) and the casing (6), a chamber (17) for containing lubricant; each seal (16) being defined by an annular member (18) made of a first material having a first coefficient of thermal expansion, and by at least one insert (19) located inside the annular member (18) and made of a second material having a second coefficient of thermal expansion lower than the first coefficient.

摘要翻译： 滚珠丝杠具有与轴（2）同轴安装的螺旋壳体（6）; 插入在所述轴（2）和所述壳体（6）之间的一组滚珠; 以及安装在所述轴（2）和所述壳体（6）之间以与所述轴（2）和所述壳体（6）一起限定的两个密封件（16），用于容纳润滑剂的腔室（17） 每个密封件（16）由由具有第一热膨胀系数的第一材料制成的环形构件（18）和位于环形构件（18）内部的至少一个插入件（19）限定，并由第二材料制成 具有低于第一系数的第二热膨胀系数。