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1. 发明专利

JP2013050208A Method for manufacturing ball screw, and the ball screw 有权
标题翻译：制造球螺杆的方法和球螺杆
公开(公告)号：JP2013050208A
公开(公告)日：2013-03-14
申请号：JP2012168496
申请日：2012-07-30
申请人： Nsk Ltd , 日本精工株式会社
发明人： TAKINO KOJI , NAGAI YUTAKA , MATSUNAGA MIKI , KATO MASAHITO
IPC分类号： F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a ball screw, and the ball screw, wherein a positional shift of a deflector along thread grooves is hard to occur between the thread grooves of a screw shaft and a nut when fixing the deflector to the nut.SOLUTION: This balls screw, after positioning the deflector 7 to the thread groove 2a of the nut 2 by use of a positioning pin 8, fixes the deflector 7 to the nut 2 by bolts 10. Therefor, even if there is a diameter difference between the bolts 10 and holes penetrated by the bolts 10 just like before, the deflector 7 is positioned by the positioning pin 8, so that the positional shift of the deflector 7 in a direction along the thread grooves is hard to occur when the deflector 7 is installed in the nut 2.
摘要翻译：要解决的问题：提供一种制造滚珠丝杠和滚珠丝杠的方法，其中当固定时螺杆轴和螺母的螺纹槽之间难以发生偏转器沿螺纹槽的位置偏移导向器到螺母。解决方案：在使用定位销8将偏转器7定位到螺母2的螺纹槽2a之后，该滚珠丝杠通过螺栓10将偏转器7固定在螺母2上。因此，即使存在螺栓10之间的直径差和螺栓10正好像以前一样穿过的孔，偏转器7由定位销8定位，使得偏转器7沿着螺纹槽的方向的位置偏移难以发生，偏转器7安装在螺母2中。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012047333A Ball screw device 审中-公开
标题翻译：球螺丝装置
公开(公告)号：JP2012047333A
公开(公告)日：2012-03-08
申请号：JP2010287616
申请日：2010-12-24
申请人： Nsk Ltd , 日本精工株式会社
发明人： NAGAI YUTAKA , KATO MASAHITO , ENDO NAOKI , SAITO HIDENORI
IPC分类号： F16H25/24 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide an inner circulation type of a ball screw device, which can minimize troubles due to variation in acting torque by reducing variation in acting torque of a ball passage period.SOLUTION: In a ball screw device 1, a screw shaft 10 is arranged horizontally and rotates. A plurality of circulating tops 40 are all aligned in one raw in the shaft direction of a nut 20 and arranged in the inner peripheral surface of the nut 20. The nut 20 is engaged to the screw shaft 10 such that the phase of a plurality of the circulating tops 40 aligned in one raw in the shaft direction becomes close to the above.
摘要翻译：要解决的问题：提供一种滚珠丝杠装置的内循环型，其可以通过减少球通过期间的作用扭矩的变化来最小化由于作用扭矩的变化引起的麻烦。解决方案：在滚珠丝杠装置1中，螺杆轴10水平布置并旋转。多个循环顶部40在螺母20的轴向全部对齐，并且配置在螺母20的内周面。螺母20与螺纹轴10接合，使得多个在轴方向上一个原料排列的循环顶部40变得接近上述。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2010164174A Ball screw device 有权
标题翻译：球螺丝装置
公开(公告)号：JP2010164174A
公开(公告)日：2010-07-29
申请号：JP2009008774
申请日：2009-01-19
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO
IPC分类号： F16H25/24 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a ball screw device suppressing deterioration in durability and operability.
SOLUTION: This ball screw device 1 includes: a screw shaft 2 having a screw shaft-side raceway groove 14 formed in its outer peripheral surface and arranged in a vertical direction; a nut 4 arranged on the outer peripheral side of the screw shaft 2 and having a nut-side raceway groove 16 formed in its inner peripheral surface; a plurality of balls 6 rollably loaded in a load rolling passage 24 and rolling in the load rolling passage 24 in association with the rotational movement of the screw shaft 2 or nut 4; and a seal member 8 arranged at the lower end of both ends of the nut 4 and being in sliding contact with the outer peripheral surface and shaft-side raceway groove 14 of the screw shaft 2. A lubricant having fluidity is arranged in the load rolling passage 24, and the seal member 8 is formed with a discharge hole 40 discharging the lubricant arranged in the load rolling passage 24 to the outside of the load rolling passage 24.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种抑制耐久性和可操作性劣化的滚珠丝杠装置。该滚珠丝杠装置1包括：螺杆轴2，其具有形成在其外周面上且沿垂直方向布置的螺纹轴侧滚道槽14; 螺母4，其设置在螺杆轴2的外周侧，并具有形成在其内周面的螺母侧滚道槽16; 多个滚珠6可滚动地装载在负载滚动通道24中并与螺杆轴2或螺母4的旋转运动相关联地在加载滚动通道24中滚动; 以及设置在螺母4的两端的下端并与螺纹轴2的外周面和轴侧滚道槽14滑动接触的密封构件8.具有流动性的润滑剂配置在负载滚动通道24，并且密封构件8形成有将布置在负载滚动通道24中的润滑剂排出到负载滚动通道24的外部的排出孔40.版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2007218278A Ball screw device 审中-公开
标题翻译：球螺丝装置
公开(公告)号：JP2007218278A
公开(公告)日：2007-08-30
申请号：JP2006036584
申请日：2006-02-14
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO
IPC分类号： F16H25/24 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a ball screw device for circulating a ball without generating great colliding sounds or giving damage such as crack to the ball.
SOLUTION: In the ball screw device, the front end face of a protruded portion 20 of an end deflector is made to abut on (or opposed to) an opposite face 21 of a nut so that the ball 15 is introduced from a ball guide face 19 of the end deflector into a ball return passage 16 of the nut. A connection surface 22 for smooth connection between the ball return passage 16 and the ball guide face 19 is formed on the opposite face 21 to suppress the formation of a step on a connection portion between the ball guide face 19 and the ball return passage 16.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于使球循环的滚珠丝杠装置，而不会产生大的碰撞声或给球发生诸如裂纹的损坏。解决方案：在滚珠丝杠装置中，端部偏转器的突出部分20的前端面与螺母的相对面21抵接（或相对），使得球15从一个导流板的导流面19插入螺母的回弹通道16中。用于球返回通道16和球导向面19之间平滑连接的连接表面22形成在相对的面21上，以抑制在球导向面19和球返回通道16之间的连接部分上形成台阶。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006064029A Ball screw device 审中-公开
标题翻译：球螺丝装置
公开(公告)号：JP2006064029A
公开(公告)日：2006-03-09
申请号：JP2004245200
申请日：2004-08-25
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO
IPC分类号： F16H25/22
摘要： PROBLEM TO BE SOLVED: To obtain the successful workability by significantly reducing the load applied by a ball at an offset point, and to reduce the costs and the noise even when the circuit number is one, and an offset lead preload is imparted.
SOLUTION: In a circulation spinning top-type ball screw device with single-array circuit, when a part of pitches in an inner screw groove 14 of a nut 16 in a loaded raceway is offset in the lead direction so that an almost central part between each inner groove 14 adjoining each other in the offset part is made to an offset point, there is formed the inner screw groove 14 in which the preload is imparted in the mutually reverse direction via a ball 15 at both sides in the axial direction on the basis of the offset point, and the preload applied by the ball 15 at a predetermined position of both the sides in the axial direction of the offset point gradually approaches zero at the offset point, and reaches zero.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了通过显着降低偏移点处的球施加的负载来获得成功的可操作性，并且即使当电路数为1时也降低成本和噪声，并且赋予偏移引线预载荷。解决方案：在具有单阵列电路的循环旋转顶部滚珠丝杠装置中，当加载的滚道中的螺母16的内螺纹槽14中的一部分间距在引导方向上偏移时，几乎在偏移部分中彼此邻接的每个内槽14之间的中心部分形成一个偏移点，形成有内螺纹槽14，在该内螺纹槽14中，通过在轴向两侧的球15相互反向地施加预载荷并且在偏移点的轴向两侧的预定位置处由球15施加的预载荷在偏移点处逐渐接近零，并且达到零。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2003343686A Linear motion device 审中-公开
标题翻译：线性运动装置
公开(公告)号：JP2003343686A
公开(公告)日：2003-12-03
申请号：JP2002153937
申请日：2002-05-28
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO , YABE TAKAYUKI
IPC分类号： F16C33/76 , F16C29/06 , F16C29/08 , F16C31/04 , F16H25/24
CPC分类号： F16H25/2418 , F16H25/2204
摘要： PROBLEM TO BE SOLVED: To provide a linear motion device which uniformly feeds a lubricant to a whole of a rolling body rolling groove of a movable body, even if the inside of the movable body is sealed by seal bodies mounted to both ends of the movable body. SOLUTION: In the ball screw, the annular seal bodies are mounted to both ends of a nut and an inner peripheral edge part of this annular seal body is slide-contacted with a screw shaft. A ventilation hole 19 is provided on the annular seal body 133 and the inside of the nut is communicated with the outside through this ventilation hole 19. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使可移动体的内部由安装在两端的密封体密封，也可以提供均匀地将润滑剂供给到可移动体的滚动体滚动槽的整体的线性运动装置的移动体。解决方案：在滚珠丝杠中，环形密封体安装在螺母的两端，并且该环形密封体的内周边缘部分与螺纹轴滑动接触。通气孔19设置在环形密封体133上，螺母的内部通过该通气孔19与外部连通。（C）2004，JPO

7. 发明专利

JP2011122688A Return tube for ball screw, and ball screw 有权
标题翻译：回转管用于球螺丝和球螺丝
公开(公告)号：JP2011122688A
公开(公告)日：2011-06-23
申请号：JP2009281777
申请日：2009-12-11
申请人： Nsk Ltd , 日本精工株式会社
发明人： NOBUTOMO MASAHIRO , KATO MASAHITO , MIZUGUCHI JUNJI
IPC分类号： F16H25/22 , F16H25/24
摘要： PROBLEM TO BE SOLVED: To avoid stress concentration on tongue width direction both ends of the distal end of a return tube even at high rotation, and to prevent damage on a tongue in a ball screw having the return tube.
SOLUTION: The distal end of the return tube 4 includes an end surface 41 along a base line L perpendicular to a tube axial direction, and the tongue 42 protruded from the base line L like a tongue. The protruded length of the tongue 42 from the base line L is roughly less than twice of a diameter of a ball 3. In the return tube 4, both side surfaces of the tongue 42 are smoothly continued from the end surface 41 and extended only to the protruded side of the tongue 42, having no roll-off.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了避免即使在高转速时回流管的远端两端的舌宽度方向上的应力集中，并且防止具有回流管的滚珠丝杠中的舌头受到损伤。解决方案：返回管4的远端包括沿着垂直于管轴向方向的基线L的端面41，以及从底线L如舌头突出的舌部42。舌42从基线L的突出长度大致小于球3的直径的两倍。在返回管4中，舌42的两个侧表面从端表面41平滑地连续并且仅延伸到舌42的突出侧，没有滚降。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2007177950A Ball screw device 有权
标题翻译：球螺丝装置
公开(公告)号：JP2007177950A
公开(公告)日：2007-07-12
申请号：JP2005379063
申请日：2005-12-28
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO
IPC分类号： F16H25/24 , B29C45/00 , B29L15/00 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a ball screw device which circulates a ball without causing harsh high-frequency sounds and early wear of the ball.
SOLUTION: The ball screw device comprises resin end deflectors 18 provided at both ends of a nut 12. Between each of end deflector assembled faces formed at both ends of the inner peripheral face of the nut 12 and each of the end deflectors 18, resin plates 20 are provided in opposition to direction changing parts 18a of the end deflectors 18.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种滚珠丝杠装置，其在不引起严重的高频声音和球的早期磨损的情况下循环球。滚珠丝杠装置包括设置在螺母12的两端的树脂端部偏转器18.在形成在螺母12的内周面的两端的每个端部偏转器组装面和每个端部偏转器18之间树脂板20设置成与端部导流板18的方向改变部分18a相对。版权所有：（C）2007，JPO＆INPIT

9. 发明专利

JP2004239370A Ball screw device 有权
公开(公告)号：JP2004239370A
公开(公告)日：2004-08-26
申请号：JP2003029952
申请日：2003-02-06
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO
IPC分类号： F16H25/24 , F16H25/22
CPC分类号： F16H25/2219
摘要： PROBLEM TO BE SOLVED: To secure stable operation without generating vibration and noise by preventing balls from rattling in a ball circulation passage.
SOLUTION: This ball screw device 10 comprises a screw shaft 12 having a spiral screw groove 11 in the outer peripheral surface thereof, a nut 14 screwed onto the screw shaft 12 having, in the inner peripheral surface thereof, a screw groove 13 corresponding to the screw groove 11, having a ball return passage 16 passed through in the axial direction, and having cutouts 17 at both end faces thereof, circulation blocks 18 fixedly fitted to the cutouts 17 to form, together with the cutouts 17, the ball circulation passage 21 allowing a portion between both screw grooves 11 and 13 to communicate with the ball return passage 16, and the large number of balls 15 circulatingly disposed while rolling between both screw grooves 11 and 13, in the ball circulation passage 21, and in the ball return passage 16. Ball running grooves 30 having a depth of less than a ball diameter are formed in the ball running surfaces 17a of the cutouts 17.
COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2004019860A Ball screw 审中-公开
公开(公告)号：JP2004019860A
公开(公告)日：2004-01-22
申请号：JP2002178466
申请日：2002-06-19
申请人： Nsk Ltd , 日本精工株式会社
发明人： KATO MASAHITO
IPC分类号： F16H25/22 , F16C33/374
CPC分类号： F16C33/6614 , F16C33/3825 , F16C33/41 , F16H25/2238
摘要： PROBLEM TO BE SOLVED: To provide a ball screw which can be improved in reliability by preventing a spacer, situated between the balls, from being widely inclined and falling down as a result of the spacer being caught by a protrusion such as a burr.
SOLUTION: An elastically deformable belt-form coupling body 22 is situated in a ball rolling passage formed between the ball thread groove of a thread shaft 11 and the ball thread groove of a nut 12 and a ball return passage formed in a return tube 16, and the spacers 17 are connected in series with the belt-form coupling body 22.
COPYRIGHT: (C)2004,JPO

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