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公开(公告)号：US20140224051A1
公开(公告)日：2014-08-14
申请号：US14350944
申请日：2012-10-19
申请人： NSK LTD.
发明人： Daisuke Kuroiwa , Junji Minakuchi
IPC分类号： F16H25/22
CPC分类号： F16H25/2204 , F16H25/2418 , F16H57/0406 , F16H57/0497 , Y10T74/19744
摘要： There is provided a ball screw apparatus ensuring easy and proper centering between a nut and a stationary member. Therefore, the ball screw apparatus (1) has a threaded shaft (10), a nut (20) that passes through the threaded shaft (10) and is screwed via a rolling body B into the threaded shaft (10) so as to be disposed movable in the axial direction of the threaded shaft (10), and a stationary member (40). The stationary member (40) is secured to an end surface (20a) of the nut (20), and a dustproof member (60) that prevents entry of foreign matter into the nut (20) is secured to the stationary member (40). The end surface (20a) of the nut (20) is provided with a spigot joint portion (20b) fitted to an outer circumferential surface (42a) of a flange part (42) of the stationary member (40).
摘要翻译： 提供了一种确保在螺母和固定构件之间容易且适当地对中的滚珠丝杠装置。 因此，滚珠丝杠装置（1）具有螺纹轴（10），螺母（20），其通过螺纹轴（10），并且经由滚动体B旋入螺纹轴（10），从而为 可以沿着所述螺纹轴（10）的轴向方向移动，以及固定构件（40）。 固定部件（40）固定在螺母（20）的端面（20a）上，防止异物进入螺母（20）的防尘部件（60）固定在固定部件（40）上， 。 螺母（20）的端面（20a）设置有嵌合固定部件（40）的凸缘部（42）的外周面（42a）的插口接合部（20b）。
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公开(公告)号：US10113621B2
公开(公告)日：2018-10-30
申请号：US15202225
申请日：2016-07-05
申请人： NSK Ltd.
发明人： Daisuke Kuroiwa
摘要： A method for manufacturing a ball screw according to the present invention includes a seal fixing step of fixing a ring shaped seal to an attachment portion disposed in an end portion of a nut of a ball screw in an axis direction using a fixing member. The attachment portion has an inner circumferential surface having a diameter larger than that of an inner circumferential surface on which a spiral groove of the nut is formed. A through hole is formed in the attachment portion, the through hole penetrating the attachment portion in a radial direction from an outer circumferential surface thereof to the inner circumferential surface thereof. The seal fixing step includes passing the screw through the through hole and engaging the screw with an outer circumferential portion of the ring shaped seal to exert an outward-directed force in the radial direction on the ring shaped seal because of a force of the head pressing the bearing face to fix the ring shaped seal to the nut.
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公开(公告)号：US09423012B2
公开(公告)日：2016-08-23
申请号：US14352347
申请日：2012-10-19
申请人： NSK LTD.
发明人： Daisuke Kuroiwa
CPC分类号： F16H25/2204 , B25B27/0028 , B25B27/28 , F16H25/2418 , F16J15/061 , F16J15/3268 , Y10T29/53657 , Y10T74/19744
摘要： A ball screw device is provided in which a dust-proof member can be simply attached to a nut. The ball screw device (1) is a ball screw device (1) in which a concave portion (6) is formed in an inner circumferential end portion of a nut (4) through which a screw shaft (2) passes and the concave portion (6) is provided with a dust-proof member (5), wherein the dust-proof member (5) is formed of a cylindrical elastic member into which the screw shaft (2) is inserted and includes at least one protrusion (8) protruding in an outward diameter direction from an outer circumferential surface of the dust-proof member (5), and the concave portion (6) has a groove shape to which the dust-proof member (5) is fitted and is provided with a locking portion (7) to which the protrusion (8) is locked.
摘要翻译： 提供了一种滚珠丝杠装置，其中防尘构件可以简单地附接到螺母。 滚珠丝杠装置（1）是在螺母（4）的内周端部形成有凹部（6）的滚珠丝杠装置（1），螺纹轴（2）穿过螺母装置（1）的凹部 （6）设有防尘构件（5），其中防尘构件（5）由螺杆轴（2）插入其中的圆柱形弹性构件形成，并且包括至少一个突起（8） 从防尘构件（5）的外周面向外径方向突出，并且凹部（6）具有槽状，防尘构件（5）嵌合于该槽形状，并且设置有锁定 突起（8）被锁定到的部分（7）。
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公开(公告)号：US20140260747A1
公开(公告)日：2014-09-18
申请号：US14351014
申请日：2012-10-10
申请人： NSK Ltd.
发明人： Daisuke Kuroiwa
CPC分类号： F16H25/2418 , F16H25/2204 , F16H2025/2481 , Y10T29/49826 , Y10T29/49963 , Y10T74/19744
摘要： A method for manufacturing a ball screw according to the present invention includes a seal fixing step of fixing a ring shaped seal (4) to an attachment portion (24) disposed in an end portion of a nut (2) of a ball screw in an axis direction using a fixing member (5). The attachment portion has an inner circumferential surface having a diameter larger than that of an inner circumferential surface on which a spiral groove of the nut is formed. A through hole (25a to 25c) is formed in the attachment portion, the through hole (25a to 25c) penetrating the attachment portion in a radial direction from an outer circumferential surface thereof to the inner circumferential surface thereof. The seal fixing step includes passing the screw through the through hole and engaging the screw with an outer circumferential portion of the ring shaped seal to exert an outward-directed force in the radial direction on the ring shaped seal because of a force of the head pressing the bearing face to fix the ring shaped seal to the nut.
摘要翻译： 根据本发明的滚珠丝杠的制造方法包括将环形密封件（4）固定到设置在滚珠丝杠的螺母（2）的端部中的安装部（24）上的密封固定步骤， 使用固定构件（5）。 安装部具有内周面，该内周面的直径大于形成有螺母的螺旋槽的内周面的直径。 在安装部中形成有贯通孔（25a〜25c），该贯通孔（25a〜25c）从其外周面向其内周面沿着径向贯通安装部。 密封固定步骤包括使螺钉穿过通孔并将螺钉与环形密封件的外圆周部分接合，以在环形密封件上沿径向施加向外的力，因为头部按压力 轴承面将环形密封件固定到螺母上。
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公开(公告)号：US20140251049A1
公开(公告)日：2014-09-11
申请号：US14352347
申请日：2012-10-19
申请人： NSK LTD.
发明人： Daisuke Kuroiwa
CPC分类号： F16H25/2204 , B25B27/0028 , B25B27/28 , F16H25/2418 , F16J15/061 , F16J15/3268 , Y10T29/53657 , Y10T74/19744
摘要： A ball screw device is provided in which a dust-proof member can be simply attached to a nut. The ball screw device (1) is a ball screw device (1) in which a concave portion (6) is formed in an inner circumferential end portion of a nut (4) through which a screw shaft (2) passes and the concave portion (6) is provided with a dust-proof member (5), wherein the dust-proof member (5) is formed of a cylindrical elastic member into which the screw shaft (2) is inserted and includes at least one protrusion (8) protruding in an outward diameter direction from an outer circumferential surface of the dust-proof member (5), and the concave portion (6) has a groove shape to which the dust-proof member (5) is fitted and is provided with a locking portion (7) to which the protrusion (8) is locked.
摘要翻译： 提供了一种滚珠丝杠装置，其中防尘构件可以简单地附接到螺母。 滚珠丝杠装置（1）是在螺母（4）的内周端部形成有凹部（6）的滚珠丝杠装置（1），螺纹轴（2）穿过螺母装置（1）的凹部 （6）设有防尘构件（5），其中防尘构件（5）由螺杆轴（2）插入其中的圆柱形弹性构件形成，并且包括至少一个突起（8） 从防尘构件（5）的外周面向外径方向突出，并且凹部（6）具有槽形状，防尘构件（5）装配到该槽形状，并且设置有锁定 突起（8）被锁定到的部分（7）。
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