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公开(公告)号：EP3255306A1
公开(公告)日：2017-12-13
申请号：EP16746286.0
申请日：2016-01-26
申请人： NSK Ltd.
摘要： To provide a circulating deflector and a ball screw provided with the same which can improve the functionality due to a behavior of rolling elements at a doorway of the circulating deflector. For this purpose, a circulating deflector (100) mounted to a nut (20) of a ball screw (1) includes two divided bodies (100A, 100B). Each of bodies (100A, 100B) includes a circulating deflector body (110A, 110B) provided with a return groove (111A, 111B) forming the return path (111) and an engagement portion (120A, 120B) provided to project from each of both side surfaces of the circulating deflector body (110A, 110B) and locked with the nut (20). The circulating deflector body (110A, 110B) is provided with a tongue portion (112) for guiding the rolling elements into the return path (111) and alignment portions (113, 114) combined with each other. The diameter of the return path (111) is more than 1.0 time but not greater than 1.1 times as great as that of the rolling elements.
摘要翻译： 为了提供一种循环偏转器和一种具有该循环偏转器的滚珠丝杠，该滚珠丝杠能够改善由于循环偏转器的出入口处的滚动元件的行为而导致的功能。 为此，安装到滚珠丝杠（1）的螺母（20）上的循环偏转器（100）包括两个分体（100A，100B）。 （100A，100B）分别具有设置有形成返回路径（111）的返回槽（111A，111B）的循环导向体（110A，110B）和从各个主体 循环偏转器本体（110A，110B）的两个侧表面并与螺母（20）锁定。 循环导流器主体（110A，110B）设置有用于引导滚动元件进入返回路径（111）和对齐部分（113,114）彼此结合的舌状部分（112）。 返回路径（111）的直径大于滚动元件的直径的1.0倍，但不大于1.1倍。
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公开(公告)号：EP2650563A1
公开(公告)日：2013-10-16
申请号：EP11702382.0
申请日：2011-02-03
申请人： NSK Ltd.
发明人： MIYAZAKI, Kazunari
IPC分类号： F16H25/22
摘要： There is provided a ball screw device even with a small lead angle and a small number of circulation rolls, including a rotational part, which keeps unequal division of tongue portions and legs connected to the tongue portions to a minimum and ensures the strength of the tongue portions. A recirculating part 40 of the ball screw device thus includes a pair of legs 41, each having a tongue portion 44 for scooping up balls in a direction approximately tangential to a spiral raceway, and a main body 42 connecting the pair of legs 41. First divided faces A and C for dividing the pair of legs 41 along a ball recirculating path R, and a second divided face B for dividing the main body 42 along the ball recirculating path R are also included. The second divided face B is formed by an upper divided face B 1 and a lower divided face B 2 of the ball recirculating path R so that the upper divided face B 1 and the lower divided face B 2 intersect with each other when viewed from a flat surface 20a of the nut 20.
摘要翻译： 提供了一种甚至具有小导程角的滚珠丝杠装置和少量的包括旋转部分的循环辊，其保持与舌部连接的舌部和腿的不相等的分割，并确保舌的强度 部分。 因此，滚珠丝杠装置的循环部40包括一对腿部41，每个腿部41具有用于沿与螺旋滚道大致相切的方向舀取球的舌部44和连接该对腿部的主体42.首先 还包括用于沿着球再循环路径R分割一对腿部41的分割面A和C以及用于沿着球再循环路径R分割主体42的第二分割面B. 第二分割面B由球再生路径R的上分割面B 1和下分割面B 2形成，使得上分割面B 1和下分割面B 2从 螺母20的平坦表面20a。
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公开(公告)号：EP3059469A1
公开(公告)日：2016-08-24
申请号：EP14865130.0
申请日：2014-11-27
申请人： NSK Ltd.
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： 提供了一种更有效地防止螺母中的额外润滑脂积聚和散射的滚珠丝杠和用于滚珠丝杠的密封件。 为了做到这一点，在设置在螺母（20）端部的密封件（30）的内周面上设置润滑脂储存部（33），该螺母在滚珠丝杠的移动方向的后侧，以便 相对于螺杆轴（10）形成空间。 油脂储存部33对密封件30的外周面开口，与形成在密封件30的外周面上的狭缝34连通。
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公开(公告)号：EP2650563B1
公开(公告)日：2020-03-25
申请号：EP11702382.0
申请日：2011-02-03
申请人： NSK Ltd.
发明人： MIYAZAKI, Kazunari
IPC分类号： F16H25/22
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公开(公告)号：EP2487388B1
公开(公告)日：2019-11-06
申请号：EP11745682.2
申请日：2011-08-03
申请人： NSK Ltd.
发明人： MIYAZAKI, Kazunari
IPC分类号： F16H25/22
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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.
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) .
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公开(公告)号：EP3059471B1
公开(公告)日：2018-04-04
申请号：EP14865821.4
申请日：2014-11-27
申请人： NSK Ltd.
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).
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