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1. 发明公开

EP2770220A1 ROLLER BEARING 审中-公开
标题翻译：滚子轴承
公开(公告)号：EP2770220A1
公开(公告)日：2014-08-27
申请号：EP12832885.3
申请日：2012-08-30
申请人： NTN Corporation
发明人： NAKAGAWA Tsutomu , NISHIMURA Masashi , 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： The present invention has an object to avoid occurrence of surface indentation and oil film shortage on rollers 6 and thus achieve a longer service life of a roller bearing 1, by preventing wear debris from being caught and accumulated in pockets 8 of a holder 7 of the roller bearing 1. Positions and dimensional relations of the diameter of an outer ring raceway 2, the diameter of an inner ring raceway 4, the inner and outer diameters of the holder 7, and inner protrusions 11 and outer protrusions 12 which are provided to pillar parts 9 of the holder 7 to prevent the rollers 6 from coming off are defined such that the inner protrusions 11 and the outer protrusions 12 of the pillar parts 9 always do not come into contact with the outer circumferential surfaces of the rollers 6 in the state where the rollers 6 and the holder 7 are incorporated between an outer member 3 and an inner member 5. As a result, lubricant oil is smoothly circulated in gaps formed between the outer circumferential surfaces of the rollers 6 and the pillar parts 9 of the holder 7.
摘要翻译：本发明的目的在于避免在滚子6上产生表面压痕和油膜缺陷，从而通过防止磨损碎屑被抓住并积聚在滚子6的保持件7的凹窝8中而实现滚子轴承1的较长使用寿命。滚子轴承1.外圈滚道2的直径，内圈滚道4的直径，支架7的内径和外径以及设置在支柱7上的内部突起11和外部突起12的位置和尺寸关系防止辊6脱落的保持器7的部分9被限定为使得柱状部分9的内突起11和外突起12在状态下始终不与辊6的外周表面接触其中辊6和保持器7结合在外部构件3和内部构件5之间。结果，润滑油顺利地在形成于外部构件3和外部构件5之间的间隙中循环。滚子6的表面和支架7的支柱部分9。

2. 发明公开

EP2530295A1 PUMP TAPPET 有权
标题翻译： PUMPENSTÖSSEL
公开(公告)号：EP2530295A1
公开(公告)日：2012-12-05
申请号：EP10844712.9
申请日：2010-12-14
申请人： NTN Corporation
发明人： NISHIMURA Masashi , OISHI Shinji , KATO Akio
IPC分类号： F02M59/10
CPC分类号： F02M59/102 , F01L2107/00 , F02M2200/8053 , F04B1/0426 , Y10T74/18296
摘要： An object of the invention is to provide a pump tappet capable of bearing a large load from a pump plunger even if a case, which is a constituent member of the pump tappet, has a reduced thickness in its intermediate bottom. The invention thus contributes to reduced weight of the overall pump tappet.
The case for the pump tappet is formed from an intermediary workpiece 40, which is made by means of a cold forging process of pressing a central region of a round steel material from both surfaces thereby pushing a portion of the material in the central region radially outward, forcing the material to flow axially in an up-down direction, so that an intermediate bottom 40c has a continuous fiber flow.
摘要翻译：本发明的目的是提供一种能够从泵柱塞承受大负载的泵挺杆，即使作为泵挺杆的构成部件的壳体在其中间底部具有减小的厚度。因此，本发明有助于减小整个泵挺杆的重量。用于泵挺杆的壳体由中间工件40形成，该中间工件通过从两个表面压制圆钢材料的中心区域的冷锻工艺制成，从而将中心区域中的材料的一部分径向向外推，迫使材料沿上下方向轴向流动，使得中间底部40c具有连续纤维流。

3. 发明授权

EP2530295B1 PUMP TAPPET 有权
公开(公告)号：EP2530295B1
公开(公告)日：2018-03-14
申请号：EP10844712.9
申请日：2010-12-14
申请人： NTN Corporation
发明人： NISHIMURA Masashi , OISHI Shinji , KATO Akio
IPC分类号： F02M59/10 , F04B9/04 , F04B1/04
CPC分类号： F02M59/102 , F01L2107/00 , F02M2200/8053 , F04B1/0426 , Y10T74/18296
摘要： An object of the invention is to provide a pump tappet capable of bearing a large load from a pump plunger even if a case, which is a constituent member of the pump tappet, has a reduced thickness in its intermediate bottom. The invention thus contributes to reduced weight of the overall pump tappet. The case for the pump tappet is formed from an intermediary workpiece 40, which is made by means of a cold forging process of pressing a central region of a round steel material from both surfaces thereby pushing a portion of the material in the central region radially outward, forcing the material to flow axially in an up-down direction, so that an intermediate bottom 40c has a continuous fiber flow.

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