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1. 发明专利

JP2013185679A Retainer for rolling bearing, rolling bearing, and method for machining retainer 有权
标题翻译：滚动轴承保持器，滚动轴承和加工保持器的方法
公开(公告)号：JP2013185679A
公开(公告)日：2013-09-19
申请号：JP2012052906
申请日：2012-03-09
申请人： Ntn Corp , Ntn株式会社
发明人： NISHIMURA MASA , OISHI SHINJI , NAKAGAWA TSUTOMU
IPC分类号： F16C33/54 , F16C19/16
CPC分类号： B21D28/30 , B21D53/12 , F16C19/463 , F16C33/546
摘要： PROBLEM TO BE SOLVED: To provide a retainer not requiring post-processing because, in order to successively punch out pockets in a workpiece of the retainer, it is necessary to intermittently drive the workpiece by a pressing tool, however, when integration is achieved by pushing the pressing tool to an end surface of the workpiece, the workpiece is damaged and post-processing for eliminating blemish is required, and as a result, a problem that increases cost occurs.SOLUTION: A retainer for a rolling bearing is configured so that, in a workpiece including a body 2 and inward flange edges 4 formed at both ends of the body, pockets 6 extending between shoulders 5 formed at both ends of the body 2 are formed at regular intervals in a peripheral direction by blanking. In the retainer for the rolling bearing, outer surfaces of the flange edges 4 or the shoulders 5 are maintained in an unworked state while maintaining the workpiece as it is.
摘要翻译：要解决的问题：为了提供不需要后处理的保持器，因为为了连续地在保持器的工件中冲出凹坑，需要通过压制工具间歇地驱动工件，然而，当通过将加压工具推到工件的端面，工件被损坏，需要后处理以消除瑕疵，结果，产生增加成本的问题。解决方案：用于滚动轴承的保持器被配置成在包括主体2和形成在主体的两端的向内凸缘边缘4的工件中，在主体2的两端形成的肩部5之间延伸的凹部6通过消隐以规则的间隔在周向方向上形成。在用于滚动轴承的保持器中，凸缘4或肩5的外表面保持在非工作状态，同时保持工件原样。

2. 发明专利

JP2013072504A Lubricating device of planetary reduction gear 审中-公开
标题翻译：减速齿轮的润滑装置
公开(公告)号：JP2013072504A
公开(公告)日：2013-04-22
申请号：JP2011212513
申请日：2011-09-28
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA
IPC分类号： F16H57/04 , F16H57/08
CPC分类号： F16H57/0479
摘要： PROBLEM TO BE SOLVED: To prolong the lifetime by preventing ingress of foreign matters into a bearing even when foreign matters such as metal abrasion powder are mixed in lubricating oil of a bearing for supporting a planetary gear in a planetary reduction gear employing the oil bath lubrication.SOLUTION: An oil hole 21 is formed in the center axis of a planetary pin 15 for supporting a planetary gear 14. A regulating pin 25 orthogonal to the oil hole 21 with its diameter being smaller than the oil hole is inserted in the planetary pin. A gap 26 of the size capable of preventing passage of foreign matters in oil is formed by the difference between the inside diameter of the oil hole 21 and the outside diameter of the regulating pin 25.
摘要翻译：要解决的问题：为了延长使用寿命，即使在异种材料如金属磨损粉末在用于支撑行星齿轮的轴承的润滑油中混入行星减速装置中时，延长使用寿命油浴润滑。解决方案：在用于支撑行星齿轮14的行星销15的中心轴上形成一个油孔21.一个与油孔21正交的直径小于油孔的调节销25插入行星销。通过油孔21的内径与调节销25的外径之间的差异，形成能够防止油中异物通过的尺寸的间隙26.（C）2013，JPO＆INPIT

3. 发明专利

JP2013068281A Roller bearing 审中-公开
标题翻译：滚子轴承
公开(公告)号：JP2013068281A
公开(公告)日：2013-04-18
申请号：JP2011207739
申请日：2011-09-22
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA , OISHI SHINJI
IPC分类号： F16C33/46 , F16C19/26 , F16C33/56 , F16C33/66 , F16H1/28
CPC分类号： F16C33/4605 , F16C19/26 , F16C33/4617 , F16C33/4623 , F16C33/4629 , F16C33/4635 , F16C33/4676 , F16C33/56 , F16C33/6681 , F16C2240/46 , F16C2361/61 , F16H1/28 , F16H2057/085
摘要： PROBLEM TO BE SOLVED: To prevent biting and retention of abrasion powder within a pocket 8 of a retainer 7 of a roller bearing 1 so that impression and oil film cutting do not occur in a roller 6, for extending service life.SOLUTION: The diameter of an outer ring raceway 2, the diameter of an inner ring raceway 4, the inner and outer diameters of the retainer 7, and the positions and dimensional relationship of an inner projection 11 and an outer projection 12 of a pillar section 9 are specified so as to prevent the inner projection 11 and outer projection 12 for preventing dropout of the roller 6, which are provided on the pillar section 9 of the retainer 7 from constantly contacting with the outer circumferential surface of the roller 6 while the roller 6 and the retainer 7 are incorporated between an outer member 3 and an inner member 5. According to this, lubricating oil smoothly flows through a gap formed between the outer circumferential surface of the roller 6 and the pillar section 9 of the retainer 7.
摘要翻译：要解决的问题：为了防止磨损粉末咬合并保持在滚子轴承1的保持器7的凹部8中，使得在辊6中不会发生印模和油膜切割，以延长使用寿命。解决方案：外圈滚道2的直径，内圈滚道4的直径，保持器7的内径和外径以及内突起11和外突起12的位置和尺寸关系规定了支柱部9，以防止内侧突起11和外侧突起12防止设置在保持器7的支柱部9上的辊6的脱落与辊6的外周面不断接触同时辊6和保持器7结合在外部构件3和内部构件5之间。因此，润滑油平滑地流过形成在辊6的外周表面和保持器的柱部9之间的间隙 7.版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2013068252A Lubricating device for planetary gear speed reducer 审中-公开
标题翻译：用于行星齿轮减速器的润滑装置
公开(公告)号：JP2013068252A
公开(公告)日：2013-04-18
申请号：JP2011206281
申请日：2011-09-21
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA , KOBAYASHI TOMOKAZU
IPC分类号： F16H57/04 , F16C19/26 , F16C19/46 , F16C33/66
CPC分类号： F16H57/0479
摘要： PROBLEM TO BE SOLVED: To eliminate shortage of oil-supply quantity, in a planetary gear speed reducer adopting oil bath lubrication, by preventing an outflow of oil retained in an oil hole without opening the oil hole at the uppermost position during the revolution of the planet gear, and to increase oil-supply quantity by opening the oil hole even at the uppermost position when the speed reducer rotates at high speed.SOLUTION: In a lubricating device in which an oil hole 26 on the axis of a planet pin 15 supporting the planet gear 14, and a branch hole 27 orthogonal to the oil hole are provided, and bearings are lubricated with oil bath lubrication through the oil hole 26 and the branch hole 27, guide holes 28 are provided which are orthogonal to the oil hole 26, at two positions in the oil hole 26, a crossing part 30 of the oil hole 26 and the branch hole 27 being sandwiched between the two position, and which are positioned on lines, in a radial direction, passing through a revolution center of the planet gear 14. The guide hole 28 is provided with an open position valve seat 31 and a closed position valve seat 32 where the valve element 29 holds the oil hole 26 at an open position and a closing position, respectively.
摘要翻译：要解决的问题：为了消除供油量的不足，在采用油浴润滑的行星齿轮减速器中，通过防止在油孔中保留的油的流出，而不会在最上方位置打开油孔行星齿轮的旋转，并且即使在减速器高速旋转时，即使在最上方的位置打开油孔来增加供油量。解决方案：在其中设置有支撑行星齿轮14的行星销15的轴线上的油孔26和与油孔正交的分支孔27的润滑装置中，并且用油浴润滑润滑轴承通过油孔26和分支孔27，设置与油孔26正交的引导孔28，在油孔26中的两个位置处，油孔26的交叉部分30和分支孔27被夹在在两个位置之间，并且在径向方向上定位成通过行星齿轮14的旋转中心。引导孔28设置有打开位置阀座31和闭合位置阀座32，其中，阀元件29将油孔26分别保持在打开位置和关闭位置。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012149755A Cage for rolling bearing 审中-公开
标题翻译：滚筒轴承用保持架
公开(公告)号：JP2012149755A
公开(公告)日：2012-08-09
申请号：JP2011010917
申请日：2011-01-21
申请人： Ntn Corp , Ntn株式会社
发明人： OISHI SHINJI , NISHIMURA MASA , NAKAGAWA TSUTOMU
IPC分类号： F16C33/66 , B22F3/02 , B22F5/00 , F16C33/46 , F16C33/56
CPC分类号： F16C33/6681 , F16C19/463 , F16C33/4629 , F16C33/4676
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive cage with machined portions provided for improving performances such as lubricity, low torque property, or the like by molding the cage by a MIM method, to improve the performances.SOLUTION: The cage for rolling bearing includes annular sections 13 formed at both axial ends, a plurality of pillar sections 14 each connecting the annular sections 13 at constant intervals, and pocket sections 15 arranged between the pillar sections 14. The machined sections such as oil supply grooves 17 provided for improving cage performances such as lubricity, low torque property, or the like are provided in some or all sections of the annular sections 13, the pillar sections 14, and pocket sections 15. The whole including the machined sections is molded by the MIM method.
摘要翻译：要解决的问题：为了提供一种廉价的保持架，其具有通过MIM方法模制保持架来提高诸如润滑性，低扭矩特性等的性能的加工部分，以提高性能。解决方案：用于滚动轴承的保持架包括在两个轴向端部处形成的环形部分13，多个柱段14，每个支柱部分14以恒定的间隔连接环形部分13，以及布置在支柱部分14之间的凹部15.加工部分例如在环状部13，支柱部14和袋部15的一部分或全部设置有提供用于提高诸如润滑性，低扭矩特性等的保持架性能的供油槽17。部分通过MIM法模制。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2012145128A Cage for rolling bearing 审中-公开
标题翻译：滚筒轴承用保持架
公开(公告)号：JP2012145128A
公开(公告)日：2012-08-02
申请号：JP2011001854
申请日：2011-01-07
申请人： Ntn Corp , Ntn株式会社
发明人： OISHI SHINJI , NISHIMURA MASA , NAKAGAWA TSUTOMU
IPC分类号： F16C33/46 , F16C33/34 , F16C33/38 , F16C33/56
摘要： PROBLEM TO BE SOLVED: To enhance performance of a cage for a rolling bearing by solving various problems of the cage by avoiding uniformity in pocket structural elements of the cage, considering that various problems of the cage are caused by the uniformity of the pocket structural elements.SOLUTION: The cage 11 for a rolling bearing includes a great number of pockets 14 arranged at a predetermined interval in a circumference direction. The cage 11 is manufactured by MIM (metal injection molding) process and is configured to include an uneven part in the pocket structural elements in such a manner that, for example, the axial length of pockets shows a difference ΔL in the arrangement of the pockets 14.
摘要翻译：解决的问题为了提高滚动轴承用保持架的性能，可以通过避免保持架的凹部构造元件的均匀性，通过解决保持架的各种问题而解决各种问题，考虑到保持架的各种问题是由于口袋结构元素。解决方案：用于滚动轴承的保持架11包括沿圆周方向以预定间隔布置的大量凹穴14。笼11通过MIM（金属注射成型）方法制造，并且被构造成在口袋结构元件中包括凹凸部分，使得例如口袋的轴向长度在口袋的布置中显示出差ΔL 14.版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2012052623A Retainer and needle roller bearing 审中-公开
标题翻译：保持器和针头滚子轴承
公开(公告)号：JP2012052623A
公开(公告)日：2012-03-15
申请号：JP2010196585
申请日：2010-09-02
申请人： Ntn Corp , Ntn株式会社
发明人： NISHIMURA MASA , NAKAGAWA TSUTOMU , TERADA TOMOAKI , ONO YASUNOBU
IPC分类号： F16C33/54 , F16C19/46
摘要： PROBLEM TO BE SOLVED: To prevent heating and seizure of a retainer, in case the retainer is manufactured by press working, by devising chamfering shape, to allow extension of length of a straight part of the outer diameter cylinder part of the retainer, and enlargement of the area of a width surface.SOLUTION: A roller bearing 19 containing a retainer 11 is made of a cylinder equipped with a plurality of pockets 13 which house needle rollers 20 in circumferential direction with pillar parts 12 in between. The cross section of the cylinder is press-worked to be M-shape, with the cross section including a flange part 15 bent toward the inner diameter side at both ends of an outer diameter cylinder part 14, and a recessed part that recesses in a V-shape toward the inner diameter side at the central position in axial direction. Related to a chamfering width in radial direction and that in axial direction at the chamfering portion of a seam between the flange part 15 and the outer diameter cylinder part 14, one of them is formed longer while the other shorter.
摘要翻译：要解决的问题：为了防止保持器的加热和卡住，在通过冲压加工制造保持器的情况下，通过设计倒角形状，允许延长保持器的外径圆筒部分的直线部分的长度，并且扩大宽度表面的面积。解决方案：包含保持器11的滚子轴承19由装有多个凹穴13的圆筒制成，该凹槽13在圆周方向上容纳滚针20，其间具有支柱部分12。圆筒的横截面被压制成M形，其横截面包括在外径圆筒部14的两端向内径侧弯曲的凸缘部15，以及凹部在轴向中心位置的内径侧呈V字状。与凸缘部15和外径圆筒部14之间的接缝的倒角部的径向倒角宽度和轴向倒角相比，其中一个较长，而另一个较短。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2011117545A Rolling bearing and its retainer 审中-公开
标题翻译：滚动轴承及其保持器
公开(公告)号：JP2011117545A
公开(公告)日：2011-06-16
申请号：JP2009276088
申请日：2009-12-04
申请人： Ntn Corp , Ntn株式会社
发明人： FUKAMI SATOYUKI , NISHIKAWA MAKOTO , NAKAGAWA TSUTOMU
IPC分类号： F16C33/46 , F16C19/46 , F16C33/51
CPC分类号： F16C33/516 , F16C19/48 , F16C2361/61
摘要： PROBLEM TO BE SOLVED: To provide a rolling bearing, in which fretting can be prevented and the abnormal abrasion of a circumferential end surface or an outer diameter surface of each circular arc member is suppressed by reliably holding in a splitting condition a retainer constructed by connecting in a ring shape a plurality of circular arc members without depending on operating conditions or the like. SOLUTION: In the rolling bearing, a retainer 3 is used which is constructed by connecting in the ring shape a plurality of circular arc members 5 equipped with a plurality of pockets 4 for housing rolling elements. A connecting means 8 is provided which connects mutually facing circumferential ends of the adjacent pair of the circular arc members 5 of the retainer 3 in such a manner that they can be relatively displaced mutually circumferentially, and that they cannot be separated in the radial direction. For example, the connecting means 8 includes a groove 6 which is formed on the outer diameter surface of a circular arc part 5a of the circular arc member 5 and extends circumferentially, and a snap ring 7 fitted in this groove 6. Further, countless minute depressions 10 are formed on either of the circumferential end surface and the outer diameter surface of the circular arc member 5 or both of them. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决问题的方案为了提供一种滚动轴承，其中可以通过可靠地保持分离状态来抑制微动，并且抑制每个圆弧部件的圆周端面或外径表面的异常磨损，通过以环形连接多个圆弧构件而不依赖于操作条件等而构造。解决方案：在滚动轴承中，使用保持器3，该保持器3通过连接环形而构成多个圆弧部件5，该圆弧部件5装备有用于容纳滚动元件的多个凹部4。设置连接装置8，其以相对于周向相对位移的方式连接保持器3的相邻一对圆弧构件5的相互面对的周向端部，并且不能沿径向方向分离连接装置8。例如，连接装置8包括形成在圆弧构件5的圆弧部5a的外径表面上并且周向延伸的凹槽6和装配在该凹槽6中的卡环7.此外，无数分钟凹部10形成在圆弧构件5的周向端面和外径面的任一方上，也可以两者形成。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2013087886A Roller bearing 有权
标题翻译：滚子轴承
公开(公告)号：JP2013087886A
公开(公告)日：2013-05-13
申请号：JP2011229829
申请日：2011-10-19
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA , OISHI SHINJI
IPC分类号： F16C33/46 , F16C33/66
摘要： PROBLEM TO BE SOLVED: To extend the life of a roller bearing by preventing biting and retention of abrasion powder from occurring in the part of inside projections 11 and outside projections 12 formed in a pocket 8 of a retainer 7 for preventing drop-out of a roller 6.SOLUTION: The inside projection 11 and outside projection 12 are provided at positions closer to crowning portions 6b on the outer peripheral surface of the roller 6 beyond the joints of a straight portion 6a with the crowing portions 6a on both sides thereof, whereby the gap between the inside projection 11 and outside projection 12 and the outer peripheral surface of the roller 6 is extended. Thus, lubricant is smoothly distributed without the lubricant on the outer surface of the roller 6 being not scraped by the inside projection 11 and outside projection 12, and dust such as metal abrasion powder mixed to the lubricant is prevented from being accumulated in the part of the inside projection 11 and outside projection 12.
摘要翻译：要解决的问题：通过防止在形成在保持器7的凹部8中的内部突起11和外部突起12的部分中发生磨损粉末的咬合和保持来延长滚子轴承的寿命，从滚筒6出来。解决方案：内侧突起11和外侧突出部分12设置在更靠近滚子6的外周面上的隆起部分6b的位置，超过具有挤压部分6a的直线部分6a的接头由此内侧突起11与外侧突起12之间的间隙与辊6的外周面延伸。因此，润滑剂平滑分布，不会使辊6的外表面上的润滑剂不被内侧突起11和外侧突起12刮擦，并且防止了与润滑剂混合的金属粉末粉末等灰尘积聚在内部突起11和外部突出部12.版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2013068283A Roller bearing 审中-公开
标题翻译：滚子轴承
公开(公告)号：JP2013068283A
公开(公告)日：2013-04-18
申请号：JP2011207741
申请日：2011-09-22
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA , OISHI SHINJI
IPC分类号： F16C33/46 , F16C33/56 , F16C33/66
摘要： PROBLEM TO BE SOLVED: To extend the service life of a roller bearing by providing a sufficient flow of lubricating oil to a guide surface of a retainer inside an outer member to thereby prevent damages on a roller due to biting and retention of dust such as metal abrasion powder.SOLUTION: The roller bearing 1 includes: the outer member 3 having a cylindrical outer ring raceway 2 on the inner circumferential surface; an inner member 5 having a cylindrical inner ring raceway 4 on the outer circumferential surface; a plurality of rollers 6 disposed so as to be capable of rolling between the outer ring raceway 2 and inner ring raceway 4; and the retainer 7 retaining the rollers 6 at predetermined intervals in the circumferential direction. The retainer 7 has a cylindrical shape as the whole while having pockets 8 for housing the rollers 6 formed at predetermined intervals in the circumferential direction, and includes a pillar section 9 each between circumferentially adjacent pockets 8. The outer diameter-side dimension A in the circumferential direction of the pocket 8 is larger than the inner diameter-side dimension B thereof.
摘要翻译：要解决的问题：通过向外部构件中的保持器的引导表面提供足够的润滑油流量来延长滚子轴承的使用寿命，从而防止由于咬住和保持灰尘而导致的辊损坏如金属磨粉。解决方案：滚子轴承1包括：外部构件3，其在内周面上具有圆柱形外圈滚道2; 内部构件5，其在外周面上具有圆筒状的内圈滚道4; 设置成能够在外圈滚道2和内圈滚道4之间滚动的多个滚筒6; 以及沿圆周方向以预定间隔保持辊6的保持器7。保持器7整体上呈圆柱形，并且具有用于容纳在圆周方向上以预定间隔形成的辊6的凹部8，并且包括在周向相邻的凹部8之间的柱部9.外径侧尺寸A 袋8的圆周方向大于其内径侧尺寸B。版权所有（C）2013，JPO＆INPIT

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