公开(公告)号：EP4428261A1

公开(公告)日：2024-09-11

申请号：EP22901195.2

申请日：2022-11-25

申请人： NTN Corporation

发明人： YAMADA, Masahiro ,  SATO, Miyu ,  OHKI, Chikara

IPC分类号： C22C38/00 ,  C22C38/18 ,  C22C38/24 ,  F16C19/06 ,  F16C33/32 ,  F16C33/62 ,  C21D9/40

CPC分类号： F16C19/06 ,  F16C33/32 ,  F16C33/62 ,  C21D9/40 ,  C22C38/00 ,  C22C38/18 ,  C22C38/24

摘要： A rolling component (10) has a surface (10a, 10b, 10c, 10d) and is made of steel. The rolling component comprises a surface layer portion (50) that is a region up to 20 µm in depth from the surface. The rolling component is intended for use with hydrogen-utilizing equipment. The steel contains 0.70 mass percent or more and 1.10 mass percent or less of carbon, 0.15 mass percent or more and 0.35 mass percent or less of silicon, 0.30 mass percent or more and 0.60 mass percent or less of manganese, 1.30 mass percent or more and 1.60 mass percent or less of chromium, 0.01 mass percent or more and 0.50 mass percent or less of molybdenum, and 0.01 mass percent or more and 0.50 mass percent or less of vanadium, with a balance consisting of iron and unavoidable impurities. In the surface layer portion, the steel has a nitrogen concentration of 0.2 mass percent or more.

公开(公告)号：EP4410761A1

公开(公告)日：2024-08-07

申请号：EP22876475.9

申请日：2022-09-29

申请人： Kabushiki Kaisha Toshiba ,  Toshiba Materials Co., Ltd.

发明人： FUNAKI, Kai ,  YAMADA, Katsuhiko ,  SANO, Shoya

IPC分类号： C04B35/587 ,  F16C33/32

CPC分类号： C04B35/587 ,  F16C33/32

摘要： The material for a ceramic ball according to an embodiment of the present invention has a spherical surface section and a band-shaped section that is formed in the shape of a band. The material for a ceramic ball is characterized by having a roundness C in the range of more than 0% but not more than 2.5%, where C represents a roundness as observed from the height direction of the band-shaped section. When the material for a ceramic ball is subjected to a grinding process, the durability of the sharpening stone can be improved. In addition, at least one of aluminum oxide, silicon nitride, boron nitride, and zirconium oxide is applicable as the ceramic.

公开(公告)号：EP4377581A1

公开(公告)日：2024-06-05

申请号：EP22754239.6

申请日：2022-07-20

申请人： Caterpillar Inc.

发明人： SURESH, Swetha ,  YERBY, Gary C. ,  DAHIWAL, Chetan V. ,  YANIAK, Thomas J. ,  PERSHING, Michael A. ,  BLINDT, Todd M. ,  JOHNSTON, Scott A. ,  NUSZ, Timothy F. ,  APPAVU, Akilan ,  BARGFREDE, Benjamin J.

IPC分类号： F16C19/16 ,  F16C19/26 ,  F16C19/54 ,  F16C33/32 ,  F16C33/34

CPC分类号： F16C19/26 ,  F16C19/16 ,  F16C19/546 ,  F16C33/32 ,  F16C33/34 ,  F16C2202/0420130101 ,  F16C2204/6220130101 ,  F16C2206/0420130101 ,  F16C2223/3020130101 ,  F16C2352/0020130101 ,  F16C2240/6020130101 ,  F16C2204/7220130101

公开(公告)号：EP3281927A1

公开(公告)日：2018-02-14

申请号：EP16776431.5

申请日：2016-03-28

申请人： Kabushiki Kaisha Toshiba, Inc. ,  Toshiba Materials Co., Ltd.

发明人： IKEDA, Isao ,  FUNAKI, Kai ,  ABE, Yutaka

IPC分类号： C04B35/584 ,  F16C33/32

CPC分类号： C04B35/584 ,  B23K35/3601 ,  C04B35/64 ,  F16C19/00 ,  F16C33/32 ,  F16C2202/20

摘要： A sintered silicon nitride object which comprises crystal grains of silicon nitride and a grain boundary phase, characterized in that the crystal grains of silicon nitride each are covered with the grain boundary phase and the grain boundary phase has a width of 0.2 nm or greater. Preferably, the width of the grain boundary phase is 0.2-5 nm. The content of the grain boundary phase is preferably 15 mass% or less. Due to the constitution, it is possible to provide a sintered silicon nitride object in which the grain boundary phase can be inhibited from deteriorating in high-temperature environments and which has high durability at high temperatures. This sintered silicon nitride object is suitable for use as a material constituting high-temperature-durable members to be used at a surrounding temperature of 300°C or higher.

摘要翻译： 包含氮化硅晶粒和晶界相的烧结氮化硅物体，其特征在于氮化硅晶粒各自被晶界相覆盖，晶界相的宽度为0.2nm或更大。 优选地，晶界相的宽度为0.2-5nm。 晶界相的含量优选为15质量％以下。 由此，可以提供能够抑制高温环境下的晶界相的劣化，高温下的耐久性高的烧结氮化硅制物体。 该烧结氮化硅物质适合用作构成在300℃以上的环境温度下使用的耐高温部件的材料。

公开(公告)号：EP1826286B1

公开(公告)日：2017-11-15

申请号：EP07003053.1

申请日：2007-02-13

申请人： JFE Steel Corporation ,  JTEKT Corporation

发明人： Iwamoto, Takashi ,  Tomita, Kunikazu ,  Kimura, Hideto ,  Toyooka, Takaaki ,  Nishisaka, Hisato ,  Goto, Masao ,  Harada, Hisashi

IPC分类号： C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/34 ,  C22C38/60 ,  C21D1/32 ,  C21D6/00 ,  F16C33/62 ,  C21D1/26 ,  C21D1/28 ,  F16C33/32 ,  F16C33/34 ,  F16C33/30 ,  F16H55/32

CPC分类号： C22C38/60 ,  C21D1/26 ,  C21D1/28 ,  C21D1/32 ,  C21D6/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/34 ,  F16C33/30 ,  F16C33/32 ,  F16C33/34 ,  F16C33/62 ,  F16H55/32 ,  Y10S148/906

公开(公告)号：EP3093175A4

公开(公告)日：2017-08-30

申请号：EP14878006

申请日：2014-12-19

申请人： NTN TOYO BEARING CO LTD

发明人： KURODA MASARU ,  SUZUKI KENICHI ,  UCHIYAMA NAOYUKI

IPC分类号： B60K7/00 ,  B60K17/14 ,  F16C19/06 ,  F16C25/08 ,  F16C33/38 ,  H02K5/173 ,  H02K7/116

CPC分类号： B60K7/0007 ,  B60K17/046 ,  B60K17/14 ,  B60K2007/0038 ,  B60K2007/0092 ,  F16C19/543 ,  F16C25/083 ,  F16C33/32 ,  F16C35/067 ,  F16C43/04 ,  F16C2240/46 ,  F16C2380/26 ,  F16H1/32 ,  F16H57/043 ,  F16H57/0471 ,  F16H57/0476 ,  F16H57/0486 ,  H02K1/30 ,  H02K5/173 ,  H02K5/1732 ,  H02K7/003 ,  H02K7/006 ,  H02K7/075 ,  H02K7/116 ,  Y02T10/641

摘要： Provided is an in-wheel motor drive device, including a casing configured to hold a motor part, a speed reduction part, and a wheel bearing part, the motor part including: a stator, which is fixed to the casing; a rotation shaft of a motor, which is rotatably supported on the casing through intermediation of rolling bearings; and a rotor, which is mounted to the rotation shaft of the motor. The rolling bearing has a radial internal clearance of from 8 µm to 25 µm before being mounted into the motor part. The rotation shaft of the motor is rotatably supported on the casing through intermediation of a plurality of rolling bearings. The rotation shaft of the motor and the rolling bearings configured to support the rotation shaft of the motor are fitted to each other by transition fit or interference fit.

摘要翻译： 本发明提供一种轮内电机驱动装置，其具备：保持电机部的壳体，减速部以及车轮轴承部，所述电机部包括：固定于所述壳体的定子; 电动机的旋转轴，该电动机的旋转轴经由滚动轴承可旋转地支撑在壳体上; 以及安装在电动机的旋转轴上的转子。 在安装到电机部件之前，滚动轴承的径向内部间隙为8μm到25μm。 电动机的旋转轴经由多个滚动轴承可旋转地支撑在壳体上。 电动机的旋转轴和支撑电动机的旋转轴的滚动轴承通过过渡配合或过盈配合彼此配合。

公开(公告)号：EP3184836A1

公开(公告)日：2017-06-28

申请号：EP15833377.3

申请日：2015-08-10

申请人： NTN Corporation

发明人： MIWA, Noriaki ,  KAWAMURA, Takayuki ,  SUGISAKI, Yoshinori ,  ITOU, Motohiro

IPC分类号： F16C33/64 ,  F16C33/32 ,  F16C33/34 ,  F16C33/58

CPC分类号： F16C33/32 ,  F16C19/52 ,  F16C33/34 ,  F16C33/58 ,  F16C33/62 ,  F16C33/64 ,  F16C2204/60 ,  F16C2240/12 ,  F16C2240/48 ,  F16C2240/70 ,  G01M13/045 ,  G01N3/32 ,  G01N3/34

摘要： A rolling component material of the present invention is a steel material for a rolling component to be used in an environment in which hydrogen enters steel, and is a material used for a rolling component of a rolling bearing, for example, a bearing ring. In the rolling component material, a non-metallic inclusion of the steel material has a radius not greater than a radius d determined by the following formula (1) and not less than 1.0 µm, where Pmax is defined as a maximum contact surface pressure acting on a rolling surface of the rolling component, d = 64729 Pmax / 4 − 1.441

摘要翻译： 本发明的滚动部件用材料是在氢进入钢中的环境下使用的滚动部件用钢材，是用于滚动轴承的滚动部件例如轴承圈的材料。 在滚动部件材料中，钢材的非金属夹杂物具有不大于由下式（1）确定的半径d且不小于1.0μm的半径，其中Pmax被定义为最大接触表面压力作用 在滚动部件的滚动表面上，d = 64729Pmax / 4-1.441

公开(公告)号：EP3070180A4

公开(公告)日：2016-11-23

申请号：EP14861768

申请日：2014-11-13

申请人： NSK LTD

发明人： MATSUZAWA CHIKARA ,  YASUHARA TAKAFUMI ,  NISHIZAWA HIROSHI ,  AOKI NORIHIRO ,  TAKANO KOJI ,  KUGE MASARU

IPC分类号： C21D9/00 ,  C21D1/18 ,  C21D9/40 ,  C22C38/00 ,  C22C38/22 ,  F16C33/32 ,  F16C33/62 ,  F16C33/64

CPC分类号： C21D9/40 ,  C21D1/18 ,  C21D6/002 ,  C21D6/02 ,  C21D6/04 ,  C21D9/00 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/22 ,  F16C19/06 ,  F16C33/32 ,  F16C33/62 ,  F16C33/64 ,  F16C2204/72 ,  F16C2240/48 ,  F16C2316/13

摘要： In order to provide a method for producing machine parts from a high-hardness and highly corrosion resistant martensitic stainless steel, the present invention is characterized by production by means of a procedure for preparing a martensitic stainless steel, a procedure for quenching from 1030-1140°C, a subzero treatment procedure, and an annealing procedure. The components of the martensitic stainless steel include, by mass percent, 0.20%-0.40% C, 0.1% or less N, 3% or less Mo, and 12.0%-16.0% Cr, the remainder being substantially Fe and unavoidable impurities. 0.3%‰¤C+N‰¤0.4%, and the PI value (=Cr+3.3Mo+16N) is 18 or more. By means of the abovementioned procedures, machine parts can be produced from a high-hardness, highly corrosion-resistant martensitic stainless steel that has a surface layer prior austenite crystal grain size of 30-100 µm and a surface hardness (abbreviated below as hardness) of HRC 58-62.

公开(公告)号：EP3006756A4

公开(公告)日：2016-11-16

申请号：EP14807785

申请日：2014-05-28

申请人： NTN TOYO BEARING CO LTD

发明人： OHKI CHIKARA ,  MATSUBARA YUKIO ,  SATO DAISUKE

IPC分类号： F16C33/62 ,  C21D1/06 ,  C21D1/76 ,  C21D9/38 ,  C21D9/40 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/42 ,  C22C38/44 ,  C23C8/32 ,  F16C19/02 ,  F16C33/32 ,  F16C33/34

CPC分类号： F16C33/62 ,  C21D1/06 ,  C21D1/76 ,  C21D9/38 ,  C21D9/40 ,  C21D2211/004 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/42 ,  C22C38/44 ,  C23C8/32 ,  F16C33/32 ,  F16C33/34 ,  F16C2204/64 ,  F16C2204/70 ,  F16C2223/16

公开(公告)号：EP3061178A2

公开(公告)日：2016-08-31

申请号：EP14786611.5

申请日：2014-10-17

申请人： Liebherr-Components Biberach GmbH

发明人： GRANER, Klaus ,  LIS, Johann ,  MENDES, Marijo

IPC分类号： H02K5/15 ,  F16J15/447 ,  H02K5/124 ,  H02K5/173

CPC分类号： H02K5/124 ,  F16C19/06 ,  F16C33/303 ,  F16C33/32 ,  F16C33/62 ,  F16C33/80 ,  F16C2204/60 ,  F16C2206/40 ,  F16C2380/26 ,  F16J15/4476 ,  F16J15/453 ,  H02K5/15 ,  H02K5/1732

摘要： The invention relates to electric machines, comprising a shaft rotatably supported in a housing and a labyrinth seal having labyrinth contours that mesh with each other for sealing the housing against the shaft. The invention relates, in particular, to the labyrinth seal for sealing the housing of a three-phase machine against a shaft that can be rotated in relation to the housing. According to the invention, at least one side of the labyrinth seal has an insulating coating at least in the region of the labyrinth contours.

摘要翻译： 本发明涉及具有可旋转地支撑在壳体中的轴的电机，并且具有迷宫式密封件，迷宫式密封件具有彼此接合的迷宫式轮廓，用于相对于轴密封壳体。 在这方面的本发明具体涉及用于相对于可相对于壳体可旋转的轴来密封三相机的壳体的迷宫式密封件。 根据本发明，迷宫式密封件的至少一侧至少在迷宫轮廓区域设有绝缘涂层。