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公开(公告)号：JP2002372548A
公开(公告)日：2002-12-26
申请号：JP2001231772
申请日：2001-07-31
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： OKADA KOICHI , OTSUKI HISASHI , TORII AKIRA , NORIMATSU TAKAYUKI , OBA HIROAKI , TAKAHASHI TORU , MIZUTANI MASATOSHI
CPC classification number: Y02T10/86
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device for a wheel having rotational frequency detection function and no risk of disconnection outside a car, and realizing further miniaturization, avoidance of complication of wiring, and improvement of sealability of the bearing.
SOLUTION: Double row rolling elements 3 are interposed between an outward member 1 and an inward member 2. A generator 4 for generating electricity by relative rotation between the outward member 1 and the inward member 2 is provided. The generator 4 comprises a coil/magnetic material pair 17 formed by storing a coil in a ring member and a multipolar magnet 18. A transmission means 5 for transmitting wirelessly a signal of the rotational frequency of the wheel 13 outputted from the generator 4 is provided. The transmission means 5 may have a circular transmitter.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：为了提供一种具有转速检测功能的轮子的轴承装置，并且没有汽车外部断开的风险，并且实现了进一步的小型化，避免了布线的复杂化以及提高了轴承的密封性。 解决方案：双列滚动元件3设置在向外构件1和向内构件2之间。用于通过向外构件1和向内构件2之间的相对旋转发电的发电机4。 发电机4包括通过将线圈存储在环形构件和多极磁体18中而形成的线圈/磁性材料对17.设置用于从发电机4输出的轮13的旋转频率的信号以无线方式发送的发送装置5 。 发送装置5可以具有圆形发送器。
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公开(公告)号：JP2011252787A
公开(公告)日：2011-12-15
申请号：JP2010126576
申请日：2010-06-02
Inventor： MIZUTANI MASATOSHI
IPC: G01N27/80
Abstract: PROBLEM TO BE SOLVED: To provide a hardening quality inspection device capable of easily and accurately inspect hardening quality of an inspection object by removing effects of residual magnetism in the inspection object and using non-destructive inspection.SOLUTION: The hardening quality inspection device is provided with electrodes 2, 2 for conduction to be brought into contact with the surface of an inspection object 1, a power supply 4, and a magnetic field detection means 5 that measures a magnetic field generated by a quality measurement current flowing through the inspection object 1. It is provided with a quality measurement means 18 that measures hardening quality of the inspection object 1 based on the magnetic field measured by the magnetic field detection means 5, and with a demagnetization means 7A that demagnetizes a residual magnetism in the inspection object 1 before quality measurement.
Abstract translation: 要解决的问题：提供一种硬化质量检查装置，其能够通过去除检查对象中的残留磁性的影响并且使用非破坏性检查来容易且准确地检查检查对象的硬化质量。 解决方案：硬化质量检查装置设置有用于导电的电极2,2与被检查物体1的表面接触，电源4和测量磁场的磁场检测装置5 由流过检查对象物1的质量测量电流产生的质量测量装置18设置有基于由磁场检测装置5测量的磁场来测量检查对象1的硬化质量的质量测量装置18，并且使用退磁装置 如图7A所示，在质量测量之前使检查对象1中的残留磁性消磁。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2010243175A
公开(公告)日：2010-10-28
申请号：JP2009088815
申请日：2009-04-01
Inventor： MASUDA YUI , MIZUTANI MASATOSHI
IPC: G01N27/72
Abstract: PROBLEM TO BE SOLVED: To provide a Barkhausen noise inspecting device for performing accurate inspection, without having to depend on the ununiformity of the interval between an exciting coil and an inspecting object, resulting from the shape, or the like, of the inspecting object and a detection head.
SOLUTION: This Barkhausen noise inspection device includes an exciting coil 2 for magnetizing the inspecting object 30, the detection head 1, having a noise detection sensor 3 for detecting Barkhausen noise issued by the magnetized inspecting object 30, and a power source 12 for supplying exciting current for generating an alternating-current magnetic field for magnetization in the exciting coil 2. Furthermore, the Barkhausen noise inspection device includes a control device 13 for adjusting the exciting current applied from the power source 12 so that the magnetic flux density, in a part of the magnetized inspecting object 30 facing the noise detection sensor 3 becomes equal to a target value.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：为了提供一种用于执行精确检查的巴克豪森噪声检测装置，而不必依赖于由形状等导致的励磁线圈和检查对象之间的间隔的不均匀性 检查对象和检测头。 解决方案：该巴克豪森噪声检测装置包括用于磁化检查对象30的激励线圈2，具有用于检测由磁化检查对象30发出的巴克豪森噪声的噪声检测传感器3的检测头1和电源12 用于提供用于产生用于励磁线圈2中的磁化的交流磁场的励磁电流。此外，Barkhausen噪声检查装置包括控制装置13，用于调节从电源12施加的励磁电流，使得磁通密度， 在面向噪声检测传感器3的磁化检查对象物30的一部分变得等于目标值。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2010107229A
公开(公告)日：2010-05-13
申请号：JP2008276892
申请日：2008-10-28
Inventor： MASUDA YUI , MIZUTANI MASATOSHI
CPC classification number: G01N27/725
Abstract: PROBLEM TO BE SOLVED: To provide a Barkhausen apparatus and a Barkhausen noise inspection noise, capable of accurately measuring the Barkhausen noise, regardless of the change in the contact state of a detection head to an inspection target.
SOLUTION: The Barkhausen noise inspection apparatus includes: a detection head 1 having a detection coil 3 for detecting the Barkhausen noise generated by an excitation coil 2 for magnetizing the inspection target 30 and the magnetized inspection target 30; and a power supply 12 for supplying an AC current for generating an AC magnetic field that magnetizes the excitation coil 2. The inspection apparatus also has a magnetic flux detecting sensor 6 for detecting magnetic flux that excites the inspection target 30, and a current control means 11 for fixedly keeping the magnetic flux that excites the inspection target 30, by controlling the AC current of the power supply 12, based on the strength of magnetic flux detected by the magnetic flux detecting sensor 6.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：为了提供巴克豪森设备和巴克豪森噪声检测噪声，能够精确测量巴克豪森噪声，而不管检测头与检查目标的接触状态如何变化。 解决方案：巴克豪森噪声检查装置包括：检测头1，具有检测线圈3，用于检测由用于磁化检查目标30和磁化检查目标30的励磁线圈2产生的巴克豪森噪声; 以及用于提供用于产生使励磁线圈2磁化的交流磁场的交流电流的电源12.检查装置还具有用于检测激励检查对象30的磁通的磁通检测传感器6以及电流控制装置 11，用于通过基于由磁通检测传感器6检测的磁通强度来控制电源12的交流电流来固定地保持激励检查对象30的磁通量。（C）2010 ，JPO＆INPIT
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公开(公告)号：JP2009127766A
公开(公告)日：2009-06-11
申请号：JP2007304369
申请日：2007-11-26
Inventor： MIZUTANI MASATOSHI , KOIKE SHUNSUKE , SUZUKI NOBUYUKI
CPC classification number: F16C19/522 , F16C19/543 , F16C2322/39
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device capable of making a pre-load detection error smaller and accurately detecting the malfunction of a bearing. SOLUTION: A spacer has an outer ring spacer 17 laid between outer rings 12g, 12g arranged side by side in the axial direction, and an inner ring spacer 16 laid between inner rings 12i, 12i. A detecting means is provided on a distortion producing part 19 for detecting a pre-load on the bearing. A housing 10 is provided for fitting the bearing 12 to the outer ring spacer 17. First and third ring members 10b, 10d are provided for reducing the rigidity of a portion of the housing 10 facing the bearing 12. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够使预载检测误差更小并精确地检测轴承的故障的轴承装置。 解决方案：间隔件具有布置在沿轴向并排设置的外环12g，12g之间的外环间隔件17和布置在内环12i，12i之间的内环间隔件16。 检测装置设置在用于检测轴承上的预载荷的变形产生部19上。 设置有用于将轴承12装配到外圈隔离件17的壳体10.第一和第三环构件10b，10d用于降低面向轴承12的壳体10的一部分的刚性。版权所有（C） ）2009，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2009068533A
公开(公告)日：2009-04-02
申请号：JP2007235032
申请日：2007-09-11
Inventor： MIZUTANI MASATOSHI
CPC classification number: F16C19/525 , F16C19/163 , F16C19/548 , F16C2322/39
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device which can detect abnormality of a bearing with higher accuracy rapidly. SOLUTION: A plurality of bearings 3 axially separated from each other are shrink-fitted with a main spindle 2. An inner ring spacer 4 is placed between the inner rings 3i, 3i, and an outer ring spacer 5 is placed between the outer rings 3g, 3g. The bearing 3 is a bearing which can apply a pre-load in the axial direction, and an angular ball bearing is used in this case. The outer ring spacer 5 is provided with a temperature sensor 6 and a non-contact temperature sensor 7. The temperature sensor 6 detects the temperature of the outer ring spacer 5, and the non-contact temperature sensor 7 detects the temperature of the inner ring spacer 4. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供能够快速检测轴承异常的轴承装置。 解决方案：轴向彼此分离的多个轴承3与主轴2收缩配合。内圈间隔件4设置在内圈3i，3i之间，外环间隔件5位于 外圈3g，3g。 轴承3是可以在轴向施加预载荷的轴承，在这种情况下使用角接触球轴承。 外环间隔件5设置有温度传感器6和非接触式温度传感器7.温度传感器6检测外圈隔离件5的温度，非接触式温度传感器7检测内圈的温度 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009036312A
公开(公告)日：2009-02-19
申请号：JP2007201513
申请日：2007-08-02
Inventor： MIZUTANI MASATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device capable of detecting a state before occurrence of a bearing abnormality at appropriate timing and of accurately and promptly detecting the bearing abnormality.
SOLUTION: In an outer ring spacer 5, a detection means for detecting a preload is provided and at least either one or both of a temperature sensor or/and a vibration sensor are provided.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种能够在适当的时刻检测轴承异常发生之前的状态并准确，及时地检测轴承异常的轴承装置。 解决方案：在外环隔离件5中，设置有用于检测预载荷的检测装置，并且提供温度传感器或/和振动传感器中的至少一个或两者。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008281158A
公开(公告)日：2008-11-20
申请号：JP2007127764
申请日：2007-05-14
Inventor： MIZUTANI MASATOSHI
CPC classification number: F16C19/522 , F16C19/543 , F16C2322/39
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device and a bearing pre-load detection device capable of correctly detecting a bearing pre-load by reducing magnetic reluctance of a coil wound around a magnetostriction material, improving sensor sensibility and enhancing reliability of a magnetostrictive sensor. SOLUTION: In the bearing device provided with a spacer between raceways, the magnetostrictive sensor S1 in which a coil 13 is wound around an outer circumference of the magnetostriction material 10 composed of a magnetostrictive material is provided at a part of the spacer, yokes 14 composed of a magnetic material are arranged at an axial end part and another axial end part of an outer circumferential part of the coil 13 of this magnetostrictive sensor S1 and thus a coil magnetic circuit of this magnetostrictive sensor S1 is provided to have a coil closed magnetic circuit structure. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够通过减少卷绕在磁致伸缩材料上的线圈的磁阻来正确检测轴承预负荷的轴承装置和轴承预载检测装置，提高传感器的灵敏度和提高可靠性 磁致伸缩传感器。 解决方案：在具有在滚道之间的间隔件的轴承装置中，在间隔件的一部分处设置有磁致伸缩传感器S1，其中线圈13缠绕在由磁致伸缩材料构成的磁致伸缩材料10的外周上， 该磁致伸缩传感器S1的线圈13的外周部的轴向端部和轴向端部配置有由磁性材料构成的磁轭14，由此设置该磁致伸缩传感器S1的线圈磁路，具有线圈 封闭磁路结构。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008281157A
公开(公告)日：2008-11-20
申请号：JP2007127763
申请日：2007-05-14
Inventor： MIZUTANI MASATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device and bearing pre-load detection device capable of detecting a pre-load during operation of the bearing, reducing manufacturing cost and facilitating assembly wherein detection sensitivity is enhanced to be resistant to disturbance noise.
SOLUTION: A strain generation part 7, which is strained by an axial force working on between both ends of an outer ring spacer 5, is provided at a part of the outer ring spacer 5 in an axial direction, and a strain sensor 10 for detecting the strain is provided for the strain generation part 7.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种能够在轴承运行期间检测预负荷的轴承装置和轴承预载检测装置，降低制造成本并且便于组装，其中增强检测灵敏度以抵抗干扰噪声 。 解决方案：在外圈隔离件5的一部分沿轴向设置应力产生部7，该应变产生部7由在外圈隔离件5的两端之间作用的轴向力应变，并且应变传感器 为应变产生部分7提供检测应变的10。版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008076063A
公开(公告)日：2008-04-03
申请号：JP2006252188
申请日：2006-09-19
Inventor： MIZUTANI MASATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a miniaturizable and inexpensive bearing device with a rotation sensor through simplifying a constitution, which performs angle sensing of an absolute angle having high resolution.
SOLUTION: The bearing device 1 with the rotation sensor is constituted of: a bearing wherein a rolling element 4 is interposed between rolling contact surfaces 2a, 3a of an outer member 2 and an inner member 3; and the rotation sensor 11. The rotation sensor 11 is equipped with a magnetism generation means 12 provided on a rotation side member between the outer member 2 and the inner member 3, and a magnetism detection means 13 provided on the stationary side member between the outer member 2 and the inner member 3. The magnetism generation means 12 is a means for generating a magnetic field whose direction is changed in one rotation and one period of the rotation side member. The magnetism detection means 13 is a means for detecting the direction of the magnetic field generated by the magnetism generation means 12, and a two-dimensional magnetic field sensor or the like is used therefor.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：通过简化构成，提供具有旋转传感器的小型化和便宜的轴承装置，该构造执行具有高分辨率的绝对角度的角度感测。 解决方案：具有旋转传感器的轴承装置1由以下部件构成：滚动体4插入在外部构件2的滚动面2a，3a和内部构件3之间的轴承; 和旋转传感器11.旋转传感器11配备有设置在外部构件2和内部构件3之间的旋转侧构件上的磁力产生装置12以及设置在外侧构件之间的固定侧构件上的磁性检测装置13 构件2和内构件3.磁产生装置12是用于产生在旋转侧构件的一个旋转和一个周期中改变方向的磁场的装置。 磁检测装置13是用于检测由磁产生装置12产生的磁场的方向的装置，并且使用二维磁场传感器等。 版权所有（C）2008，JPO＆INPIT
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