专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH10115323A ROLLING BEARING 失效
公开(公告)号：JPH10115323A
公开(公告)日：1998-05-06
申请号：JP14148297
申请日：1997-05-30
申请人： KOYO SEIKO CO , DENSO CORP
发明人： KITAMURA MASAYUKI , MIYAZAKI HIROYUKI , HOSHINO TERUO , FUJITA YOSHIKI , NAKAMURA SHIGENOBU , MITANI KENZOU , SHIGA TSUTOMU
IPC分类号： F16C33/62
摘要： PROBLEM TO BE SOLVED: To elongate a life under the vibration and impact environment, by using a steel for bearing, including carbon and chrome as the main additional elements, and including a specific amount of silicon, as a material of a fixed ring, and specifying the amount of the residual austenite after the quenching and tempering. SOLUTION: A fixed ring exposed under the vibration and impact environment, is made of a steel for bearing, comprising carbon and chrome as the main additional element, and including 0.15-0.35% of silicon, as a material, and the amount of the residual austenite just under a bearing face after the quenching and tempering, is controlled to be not more than 8%. The residual austenite is unstable in texture under the vibration and impact environment, and the yield strength is low, so that the micro plastic deformation is easily generated, and further the partial change of texture and the cracking are easily generated by the vibration and the impact when the amount of the residual austenite is over 8%. Further the loading circle at the fixed ring side is constant, so the vibration and the impact have high influence, and the life of a bearing is determined by the damage of the fixed ring. That is, the long life can be obtained under the vibration and impact environment without increasing the size of the bearing.

2. 发明专利

JPH09105415A ROLLING BEARING 失效
公开(公告)号：JPH09105415A
公开(公告)日：1997-04-22
申请号：JP13389496
申请日：1996-05-28
申请人： DENSO CORP , KOYO SEIKO CO
发明人： NAKAMURA SHIGENOBU , MITANI KENZOU , SHIGA TSUTOMU , KITAMURA MASAYUKI , FUJITA YOSHIKI
IPC分类号： F16C33/62 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To increase fatigue life during high speed rotation and high load operation by a method wherein the fixed ring of a grease-lubricated rolling bearing is formed of a steel having a specified amount of residual austenite. SOLUTION: The outer ring, being the fixed ring of at least a bearing 13 on the pulley 20 side, of the inner rings and the outer rings of a pair of bearings 13 and 14 is formed of a steel having a residual austenite amount of 0.05-10%. A subzero process is applied between quenching and tempering and by increasing a tempering temperature to 250-380 deg.C based on an ordinary tempering temperature of 150-200 deg.C, a residual austenite amount can be decreased. By reducing an austenite amount, the increase of the heating value of the interior of a bearing occasioned by the increase of a speed and a tension is suppressed and a durable life against grease seizure is improved. Further, when a residual austenite amount is high, plastic deformation is apt to occur to a rail due to the increase of a load caused by a high tension and the reduction of the residual austenite amount is effective to the plastic deformation described above.

3. 发明专利

JPH08210360A ROLLING BEARING TO BE USED UNDER ENVIRONMENT SUBJECT TO VIBRATION AND SHOCK 失效
公开(公告)号：JPH08210360A
公开(公告)日：1996-08-20
申请号：JP27237895
申请日：1995-10-20
申请人： KOYO SEIKO CO , NIPPON DENSO CO
发明人： KITAMURA MASAYUKI , MIYAZAKI HIROYUKI , HOSHINO TERUO , FUJITA YOSHIKI , NAKAMURA SHIGENOBU , MITANI KENZOU , SHIGA TSUTOMU
IPC分类号： F16C19/00 , F16C33/62
摘要： PURPOSE: To provide a rolling bearing having a long service life under the environment of vibration and shock without increasing the dimensions of the bearing by using the steel where the amount of the residual austenite of a fixed ring is limited to below the prescribed value. CONSTITUTION: A rolling bearing is made of the steel where the amount of the residual austenite of a fixed ring is not more than 10%. During the normal hardening and annealing of the fixed ring, 11-14% austenite is left on the average. The residual austenite is structurally unstable under the environment subject to the vibration or shock, and the yield strength is low, and the microscopic plastic deformation is easily generated, and when the amount of the residual austenite exceeds 10%, the local change in structure or cracks are easily generated by the vibration or shock. As the method to reduce the amount of the residual austenite, the sub-zero treatment is implemented after the hardening or annealing. The austenite is changed into the martensite through the sub-zero treatment, and the amount of the residual austenite is reduced.

4. 发明专利

JPS63308218A ROLLING BEARING 失效
公开(公告)号：JPS63308218A
公开(公告)日：1988-12-15
申请号：JP14548387
申请日：1987-06-10
申请人： KOYO SEIKO CO , NIPPON DENSO CO
发明人： KITAMURA MASAYUKI , MIYAZAKI HIROYUKI , HOSHINO TERUO , FUJITA YOSHIKI , NAKAMURA SHIGENOBU , MITANI KENZOU , SHIGA TSUTOMU
IPC分类号： F16C33/62 , C21D9/40
摘要： PURPOSE:To make a bearing hard to occur structural change or crack on a fixed race even when undergone vibration or shock, and gain a long life when used under circumstances in vibration and shock by forming a fixed race of a rolling bearing with steel having retained austenite in quantity less than a fixed value. CONSTITUTION:Steel for a fixed race which is the outer race of a rolling bearing is performed subzero treatment after quench hardening and tempering. By this subzero treatment, is changed austenite in the same to martensite and amount of retained austenite is made less than about 10%, desirably less than about 6%. A fixed race is formed with such steel. As a result of this process, the bearing becomes hard to occur local structural change or crack in the fixed race.

5. 发明专利

JPS63308219A AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JPS63308219A
公开(公告)日：1988-12-15
申请号：JP14548487
申请日：1987-06-10
申请人： NIPPON DENSO CO , KOYO SEIKO CO
发明人： NAKAMURA SHIGENOBU , MITANI KENZOU , SHIGA TSUTOMU , KITAMURA MASAYUKI , FUJITA YOSHIKI
IPC分类号： F16C33/62 , H02K7/08
摘要： PURPOSE:To prevent plastic deformation of a raceway surface loaded when balls pass through on and to make it possible to reduce vibration and to use in higher speed and under higher tension by forming an outer race of a bearing in pulley side with steel having retained austenite less than a fixed value. CONSTITUTION:A rotary shaft 15 of an armature (rotor) 18 is supported freely rotably to frames 10, 11, having a stator 12 of an AC generator for a vehicle, via a couple of bearings 13, 14. A pulley 20 is provided on the end part of the rotary shaft 15 projected to outside of the frames 10, 11,and the rotary shaft 15 is made to rotate by an engine via this pulley 20. Among inner and outer races of these bearings 13, 14, at least, the outer race of the bearing in the pulley 20 side is formed with steel having retained austenite less than 10%. As the result of this construction, a raceway loaded when balls pass through on does not make plastic deformation, so together with reduced vibration, rolling frictional force become reduced to suppress heat building up, so the bearing can be used in higher speed and under higher tension.

6. 发明专利

JP2006300097A Rolling bearing for auxiliary machine of internal combustion engine 审中-公开
标题翻译：内燃机辅助机的滚动轴承
公开(公告)号：JP2006300097A
公开(公告)日：2006-11-02
申请号：JP2005118391
申请日：2005-04-15
申请人： Denso Corp , 株式会社デンソー
发明人： SHIGA TSUTOMU , IBATA KOICHI , UMEDA ATSUSHI
IPC分类号： F16C19/16 , F16C35/063 , F16C35/067
CPC分类号： F16C19/06 , F16C33/30
摘要： PROBLEM TO BE SOLVED: To establish a structure for preventing the brittle peeling (white layer) of a rolling bearing from occurring.
SOLUTION: The white layer occurs due to a heat insulated shearing deformation. The shearing deformation is produced when a shearing deformation occurring in the bearing and a shearing deformation rate exceed limit values specific to a material. To prevent them from occurring, the rolling elements may be prevented from being collided with an inner ring (outer ring). For this purpose, an impact speed is reduced to approximately 3 m/sec or below, more specifically, a radial clearance in assembling may be set to a negative clearance in its half part.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：建立一种用于防止发生滚动轴承的脆性剥离（白色层）的结构。
解决方案：白色层由于绝热剪切变形而发生。当在轴承中产生的剪切变形和剪切变形速率超过材料特有的极限值时，产生剪切变形。为了防止它们发生，可以防止滚动元件与内圈（外圈）碰撞。为此，冲击速度降低到约3m / sec或更低，更具体地说，组装中的径向间隙可以在其半部分设定为负间隙。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006258258A Bearing device of auxiliary machine for vehicle 有权
标题翻译：汽车辅助机械轴承装置
公开(公告)号：JP2006258258A
公开(公告)日：2006-09-28
申请号：JP2005079931
申请日：2005-03-18
申请人： Denso Corp , 株式会社デンソー
发明人： IBATA KOICHI , SHIGA TSUTOMU , UMEDA ATSUSHI
IPC分类号： F16C33/78 , F16C19/06 , F16C19/52 , F16C33/32 , F16C33/62 , F16H55/36 , H02K5/173
CPC分类号： F16H57/0469 , F16C19/06 , F16C19/52 , F16C25/086 , F16C33/32 , F16C33/62 , F16C33/7843 , F16C39/063 , F16C2380/26
摘要： PROBLEM TO BE SOLVED: To provide an auxiliary machine with high reliability and a generator for a vehicle not generating separation of a bearing by abutting/fixing a ball and inner and outer rings by force of magnetism and preventing collision of the ball and the inner and outer rings.
SOLUTION: Such a mechanism that the bearing is early broken in brittle fracture is considered due to the collision of the ball to the inner and outer rings. Therefore, in order to prevent the ball from becoming in the free state, the collision of the ball is prevented by magnetizing the inner ring, the outer ring and the ball of the bearing and not allowing the respective members to separate from one another by magnetic force.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种具有高可靠性的辅助机器和用于通过磁力抵抗/固定球体和内圈和外圈而不产生轴承分离的车辆的发电机，并且防止球的碰撞和内圈和外圈。
解决方案：由于球与内圈和外圈的碰撞，认为这种轴承早期破碎在脆性断裂中的机理。因此，为了防止球处于自由状态，通过磁化轴承的内圈，外圈和球来防止球的碰撞，并且不允许各构件通过磁性彼此分离力。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006141129A Rotary electric machine for vehicle 有权
标题翻译：车用旋转电机
公开(公告)号：JP2006141129A
公开(公告)日：2006-06-01
申请号：JP2004328311
申请日：2004-11-12
申请人： Denso Corp , 株式会社デンソー
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , IBATA KOICHI
IPC分类号： H02K19/22 , F16F15/18
CPC分类号： H02K7/11 , H02K9/04 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine for vehicle which is easy in production and design, and can stabilize an engine with few troubles and at low cost.
SOLUTION: An alternator 1 for vehicle as a rotary electric machine for vehicle has a pulley 102 to which rotating drive force is transmitted from the engine, a rotor 3 rotary-driven integrally with the pulley 102, and a stator 2 wound with an armature winding. The rotor 3 is provided with a Randel type pole core 7 supplying a rotation magnetic flux to the stator 2, a magnetic inertia body 31 constituted of magnetic materials which are rotatably connected to a shaft 6, and an energizing source 32 which rotates integrally with the Randel type pole core 7 and supplies magnetic flux to the magnetic inertia body 31.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种易于生产和设计的车辆用旋转电机，能够以低成本稳定几个故障的发动机。解决方案：作为车辆用旋转电机的车辆用交流发电机1具有从发动机向其传递旋转驱动力的滑轮102，与滑轮102一体地旋转驱动的转子3和缠绕有电枢绕组。转子3设置有向定子2提供旋转磁通的兰德尔型磁极铁芯7，与轴6可旋转地连接的磁性材料构成的磁惯性体31和与轴6一体旋转的通电源32 兰德尔型磁极铁芯7，并向磁惯性体31提供磁通量。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006046571A Engine system 有权
标题翻译：发动机系统
公开(公告)号：JP2006046571A
公开(公告)日：2006-02-16
申请号：JP2004230742
申请日：2004-08-06
申请人： Denso Corp , 株式会社デンソー
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , IBATA KOICHI
IPC分类号： F16H7/02 , F02B67/06 , F16F15/12
CPC分类号： F16F15/1442 , F02B67/06 , H02K5/24 , H02K9/06
摘要： PROBLEM TO BE SOLVED: To provide an engine system which can stabilize its rotation by absorbing the rotational fluctuation of an alternator 2 with a small moment of inertia, and without enlarging the alternator 2. SOLUTION: A dynamic damper 23 is composed of an annular inner ring 23a fixed to the end face of a rotor core 18 in the axial direction by welding, etc., an annular outer ring 23b to be arranged outside the inner ring 23a in the radial direction, and an elastic body 23c, which is made of rubber, etc. and is press fitted between the inner ring 23a and the outer ring 23b. A vibration of 42 Hz within the frequency range of the idling rotation can be suppressed by mounting the dynamic damper 23 on the iron core 18 of the rotor of the alternator 2. In addition, because the moment of inertia of the dynamic damper 23 is approximately 1/10 of that of the rotor of the alternator 2, the strength can be roughly reduced to 1/10 of that of a conventional spring, and the durability of the dynamic damper can be drastically improved. As a result, a safe alternator 2 can be provided. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过以小的惯性矩吸收交流发电机2的旋转波动并且不扩大交流发电机2来稳定其旋转的发动机系统。解决方案：动力减震器23 由通过焊接等固定在转子芯体18的轴向端面上的环状内圈23a构成，在径向上配置在内圈23a外侧的环状外圈23b，弹性体 23c，其由橡胶制成，并且压配合在内圈23a和外圈23b之间。通过将动力阻尼器23安装在交流发电机2的转子的铁芯18上，能够抑制怠速旋转频率范围内的42Hz的振动。此外，由于动力减震器23的转动惯量近似交流发电机2的转子的1/10的强度可以大致减小到常规弹簧的1/10，并且可以显着提高动态阻尼器的耐久性。结果，可以提供安全的交流发电机2。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004324617A Starter 审中-公开
标题翻译：起动机
公开(公告)号：JP2004324617A
公开(公告)日：2004-11-18
申请号：JP2003123980
申请日：2003-04-28
申请人： Denso Corp , 株式会社デンソー
发明人： USAMI SHINJI , MURATA MITSUHIRO , SHIGA TSUTOMU , OMI MASANORI
IPC分类号： F02N15/02 , F02N11/00 , F02N15/06
摘要： PROBLEM TO BE SOLVED: To provide better assemble of a center case into a housing and restrict the compression of an elastic body to prevent the elastic body from being damaged.
SOLUTION: An open part of a housing 17 has a guide opening 17a which guides a center case to a cylinder opening 17b. Since the inside diameter of the guide opening 17a is greater than the inside diameter of the cylinder opening 17b including a recess 17c, the center case can be easily stored inside the cylinder opening 17b. If a relative rotation occurs between the center case and an internal gear, an impact absorption mechanism stops the relative rotation by a first movable protrusion of a resin molded member coming into contact with a second fixed protrusion of the center case. This restricts the compression of the elastic body to avoid the entire compression of the elastic body, thereby preventing early fatigue and damage of the elastic body.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了更好地将中心壳体组装到壳体中并限制弹性体的压缩以防止弹性体被损坏。解决方案：壳体17的开放部分具有将中心壳体引导到气缸开口17b的引导开口17a。由于引导开口17a的内径大于包括凹部17c的气缸开口17b的内径，所以中心壳体可以容易地容纳在气缸开口17b内。如果在中心壳体和内齿轮之间发生相对旋转，则冲击吸收机构通过与中心壳体的第二固定突起接触的树脂模制构件的第一可移动突起来阻止相对旋转。这限制了弹性体的压缩以避免弹性体的整体压缩，从而防止弹性体的早期疲劳和损坏。版权所有（C）2005，JPO＆NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式