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1. 发明专利

JP2004068925A Ball bearing 审中-公开
公开(公告)号：JP2004068925A
公开(公告)日：2004-03-04
申请号：JP2002229225
申请日：2002-08-06
申请人： Nsk Ltd , 日本精工株式会社
发明人： NAWAMOTO HIROTSUNA , YAMAZOE MASANOBU , ARAMAKI HIROTOSHI
IPC分类号： F16C33/41
CPC分类号： F16C33/416 , F16C19/06 , F16C33/6614
摘要： PROBLEM TO BE SOLVED: To provide an excellent ball bearing in which lubricating performance can be improved by positively imparting fluidity to grease staying up to the present. SOLUTION: The ball bearing is provided with an inner ring 1, an outer ring 2, a plurality of balls 3 arranged freely rollably between the inner/outer rings 1, 2, a crown-type retainer 14 made of synthetic resins in which a plurality of pockets to retain the balls 3 at equal intervals along the circumference, and a seal member 16 to cover the opening part at both ends of the bearing. The grease is sealed inside a space of the bearing. A columnar pin-shaped projection 23 is projected on the upper face of each column part 22 of the crown-type retainer 14. The projection 23 is set to the height higher in the axial direction than the top of the balls 3 retained in the pockets, and at the same time, it is projected to a part with which a protruding pin is collided when the crown-type retainer 14 is protruded from a molding mold during resin molding. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2005325953A Sealed type ball bearing 审中-公开
标题翻译：密封型球轴承
公开(公告)号：JP2005325953A
公开(公告)日：2005-11-24
申请号：JP2004145732
申请日：2004-05-17
申请人： Nsk Ltd , 日本精工株式会社
发明人： YAMAZOE MASANOBU , MUTO YASUYUKI
IPC分类号： F16C33/66 , F16C33/58 , H02K7/08
CPC分类号： F16C19/06
摘要： PROBLEM TO BE SOLVED: To solve the problem of a sealed type ball bearing, especially the ball bearing performing high speed rotation like a bearing for an alternator wherein grease scraped off from the periphery of a ball by the inner peripheral surface of a cage is pushed out to the seal lip side of a contact type sealing member to flow out to the outside through a gap of the seal lip. SOLUTION: This sealed type ball bearing comprises: an outer ring 12; an inner ring 10; a plurality of balls 14 disposed to freely roll between the raceway surface 11 of the outer ring and the raceway surface 9 of the inner ring; a crown type cage 13 holding the plurality of balls 14; and contact seal members 19a, 19b disposed around the balls 14 at both end parts in the axial direction, wherein an annular space partitioned by the bearing space formed between the inner peripheral surface of the outer ring and the outer peripheral surface of the inner ring and the balls 14 is filled with grease. At least one of the shoulder parts of the inner ring formed on both sides of the raceway surface 9 of the inner ring in the outer peripheral surface of the inner ring 10 is provided with a recessed groove 22b having a U-shaped section or a recessed groove having a V-shaped or square section disposed in the circumference. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了解决密封式球轴承，特别是执行高速旋转的滚珠轴承，如用于交流发电机的轴承的问题，其中由球的外周表面从球的周边刮掉油脂保持架被推出到接触型密封构件的密封唇侧，通过密封唇的间隙流出到外部。
解决方案：该密封型球轴承包括：外圈12; 内圈10; 设置成在外圈的滚道表面11和内圈的滚道表面9之间自由滚动的多个滚珠14; 保持多个球14的冠型保持架13; 以及在轴向的两端部设置在球14周围的接触密封部件19a，19b，其中，由形成在外圈的内周面与内圈的外周面之间的轴承空间隔开的环状空间和球14中填充有润滑脂。形成在内圈10的外周面的内圈的滚道面9的两侧的内圈的至少一个肩部设置有凹槽22b，凹槽22b具有U形截面或凹入具有设置在圆周上的V形或方形截面的凹槽。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005042741A Sealed ball bearing 审中-公开
标题翻译：密封球轴承
公开(公告)号：JP2005042741A
公开(公告)日：2005-02-17
申请号：JP2003199850
申请日：2003-07-22
申请人： Nsk Ltd , 日本精工株式会社
发明人： YAMAZOE MASANOBU , MUTO YASUYUKI
IPC分类号： F16C33/78 , F16C19/02 , F16C33/41 , F16C33/66
CPC分类号： F16C33/416 , F16C19/06 , F16C33/6614 , F16C2380/26
摘要： PROBLEM TO BE SOLVED: To provide a sealed ball bearing capable of improving the lubrication contribution ratio of grease, and extending bearing seizure life by holding grease on an inner diametric surface of a retainer, and prohibiting scattering of grease due to centrifugal force. SOLUTION: The device comprises an outer ring 9, an inner ring 10, a plurality of balls 12 incorporated in a bearing space formed between race surfaces of the outer ring and the inner ring, a crown-shaped retainer 13 to retain the balls to be capable of rolling, grease enclosed in a circular space formed of the bearing space and the balls, and a sealing plate 22 disposed at both axial end parts. The retainer 13 is provided with a grease holding part 23 having a cross sectional surface in a concave form in the inner diametric surface 16. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够改善润滑脂的润滑贡献率的密封球轴承，并且通过在保持器的内径表面上保持润滑脂并且防止由于离心力而引起的润滑脂的散射来延长轴承咬合寿命。解决方案：该装置包括外环9，内环10，多个球12，其结合在形成于外圈和内圈的表面之间的轴承空间中，冠状保持器13保持能够滚动的滚珠，封闭在由轴承空间和滚珠形成的圆形空间中的油脂，以及设置在两个轴向端部处的密封板22。保持器13设置有在内径表面16中具有凹形形状的横截面的润滑脂保持部23.版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004068924A Sealed rolling bearing 审中-公开
公开(公告)号：JP2004068924A
公开(公告)日：2004-03-04
申请号：JP2002229224
申请日：2002-08-06
申请人： Nsk Ltd , 日本精工株式会社
发明人： NAWAMOTO HIROTSUNA , ARAMAKI HIROTOSHI , YAMAZOE MASANOBU
IPC分类号： F16C33/78 , F16C33/58
摘要： PROBLEM TO BE SOLVED: To provide a sealed rolling bearing in which seepage of grease hardly occurs.
SOLUTION: A deep-groove ball bearing 11 is provided with a plurality of balls 14 arranged freely rollably between inner/outer rings, a crown-shaped retainer 15 to retain the balls 14 at equal intervals along in the circumference, and a contact-type seal member 18. The seal member 18 is provided with a main lip part 16a extended radially inwardly and a sub-lip part 16b extended axially inwardly. A shoulder part of the inner ring 13 is formed to be stepped in which a second shoulder part 10b on the outside in the axial direction is made smaller in diameter than a first shoulder part 10a on the inside in the axial direction. The outer diameter d
1 at the inner end in the axial direction of the sub-lip part 16b to cover the second shoulder part 10b is below the outer diameter D
1 of the first shoulder part 10a.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2007032665A One-way clutch built-in type pulley device 审中-公开
标题翻译：单向离合器内置类型的PULLEY设备
公开(公告)号：JP2007032665A
公开(公告)日：2007-02-08
申请号：JP2005215501
申请日：2005-07-26
申请人： Nsk Ltd , 日本精工株式会社
发明人： OTAKI RYOICHI , YAMAZOE MASANOBU , YANO SHUICHI
IPC分类号： F16D41/06 , F16H55/36
摘要： PROBLEM TO BE SOLVED: To provide a one-way clutch built-in type pulley device preventing rigidity deterioration of a clutch outer ring, suppressing reduction of transmission torque capacity of a one-way clutch, and advantageous even in an aspect of machining costs. SOLUTION: The one-way clutch built-in type pulley device 10 is provided with a sleeve 11, a pulley arranged concentrically with the sleeve 11 in a periphery of the sleeve 11, and the one-way clutch 13 and a support bearing 14 arranged between the sleeve 11 and the pulley 12. The one-way clutch 13 is provided with the clutch outer ring 20 having a cylindrical straight part 20b formed with a cylinder face 20a on an inner circumference face, a clutch inner ring 21 provided integrally with the sleeve 11 or as a separate body, and formed with a ramp face 21a on an outer circumference face, and a plurality of engagement pieces provided between the cylinder face 20a and the ramp face 21a. The clutch outer ring 20 has a flange part 20c only in an axial one end of the straight part 20b. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种防止离合器外圈的刚性劣化的单向离合器内置式滑轮装置，抑制单向离合器的传动扭矩能力的降低，并且即使在加工成本。解决方案：单向离合器内置式滑轮装置10设置有套筒11，与套筒11同心地布置在套筒11的周边中的滑轮，单向离合器13和支撑件轴承14布置在套筒11和滑轮12之间。单向离合器13设置有离合器外圈20，其具有在内周面上形成有缸面20a的圆柱形直线部分20b，设置有离合器内圈21 与套筒11一体形成，或者作为分离体，在外周面上形成有斜面21a，以及设置在气缸面20a和斜面21a之间的多个接合片。离合器外圈20仅在直部20b的轴向一端具有凸缘部20c。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006336774A Pulley device with built-in one-way clutch 审中-公开
标题翻译： PULLEY设备与内置单向离合器
公开(公告)号：JP2006336774A
公开(公告)日：2006-12-14
申请号：JP2005162976
申请日：2005-06-02
申请人： Nsk Ltd , 日本精工株式会社
发明人： YANO SHUICHI , IMAMURA SHIGEHISA , OTAKI RYOICHI , NAKAYAMA HIDEKI , YAMAZOE MASANOBU , FUJIMORI DAISUKE , KINUGAWA MASAHIRO
IPC分类号： F16H55/36 , F16D41/06
摘要： PROBLEM TO BE SOLVED: To provide a pulley device with a built-in one-way clutch whose vibration and noise due to heat in the clutch or the deflection of a belt are suppressed by reducing an axial gap. SOLUTION: The pulley device with the built-in one-way clutch comprises supporting ball bearings 14a, 14b arranged in each other facing combination while giving a contact angle to each of them after assembled. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有内置单向离合器的滑轮装置，其通过减小轴向间隙来抑制由于离合器中的热量或带的偏转引起的振动和噪声。解决方案：具有内置单向离合器的滑轮装置包括布置在彼此面向组合中的支撑滚珠轴承14a，14b，同时在组装之后给每个接触角提供接触角。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006113002A Anomaly diagnosis system for mechanical equipment 审中-公开
标题翻译：机械设备异常诊断系统
公开(公告)号：JP2006113002A
公开(公告)日：2006-04-27
申请号：JP2004302804
申请日：2004-10-18
申请人： Nsk Ltd , 日本精工株式会社
发明人： SAWARA JUNTARO , MUTO YASUYUKI , MIYASAKA TAKANORI , YAMAZOE MASANOBU
IPC分类号： G01H17/00 , G01M13/04
摘要： PROBLEM TO BE SOLVED: To provide an anomaly diagnosis system for executing anomaly diagnosis with high accuracy, without misdetecting noise signals as anomaly signals, even under the condition that the S/N ratio between the anomaly signals and the noise signals is small.
SOLUTION: This anomaly diagnosis system for mechanical equipment is equipped with an envelope processing section 3 for finding an envelope of detected signals; an FFT section 4 for converting the envelope into a frequency spectrum; a peak detection section 5 for smoothing the frequency spectrum by taking its moving averages, further, smoothingly differentiating the spectrum, to detect frequency points where the sign of a differential coefficient changes from positive to negative as peaks, extracting peaks larger than the prescribed threshold, and sorting them to detect those in higher ranks as peaks; and a diagnosis part T for conducting anomaly diagnosis, based on the detected peaks.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在异常信号和噪声信号之间的S / N比小的情况下，为了提供用于以高精度执行异常诊断的异常诊断系统，也不会将噪声信号误检测为异常信号。解决方案：这种机械设备异常诊断系统配备有一个信封处理部分3，用于查找检测信号的包络; 用于将包络转换成频谱的FFT部分4; 峰值检测部分5，用于通过取其移动平均值平滑频谱，进一步平滑地区分光谱，以检测微分系数的符号从正负变为峰值的频点，提取大于规定阈值的峰值，并对它们进行排序以检测较高级别的高峰; 以及用于进行异常诊断的诊断部分T，基于检测到的峰值。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006017291A Monitoring device and monitoring method 审中-公开
标题翻译：监控设备和监控方法
公开(公告)号：JP2006017291A
公开(公告)日：2006-01-19
申请号：JP2004263776
申请日：2004-09-10
申请人： Nsk Ltd , 日本精工株式会社
发明人： MIYASAKA TAKANORI , TANIGUCHI MASAHITO , MUTO YASUYUKI , YAMAZOE MASANOBU , SAWARA JUNTARO
IPC分类号： F16C19/52
摘要： PROBLEM TO BE SOLVED: To provide a monitoring method capable of quickly and accurately monitoring a device that uses a rolling element, and to provide a monitoring device of lower size and cost. SOLUTION: A rolling element 3 rotates stably if operation state of a bearing 5 is well, but vibration of the rolling element becomes larger by the effect of, for example, rolling of the rolling element on a rough part of a raceway surface. The abnormality such as defective operation can be detected if the amplitude value of passage vibration of the rolling element which is measured becomes larger, as it means that the rolling element rolls, for example, on the rough part of a raceway surface. Since continuing poor lubrication develops into abnormality such as wear or breakage, treatment such as refilling of lubricant in that stage prevents damage from abnormality while prevents wear or extends life. So, the state of a device which uses a rolling element can be monitored without breakup with simple configuration, and defective operation of the rolling element is detected before the occurrence of damage whose cause is defective operation. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够快速且准确地监视使用滚动元件的装置的监视方法，并提供尺寸和成本更低的监视装置。解决方案：如果轴承5的操作状态良好，则滚动体3的旋转稳定，但是通过例如滚动体在滚道表面的粗糙部分的滚动，滚动体的振动变大。如果测量的滚动元件的通过振动的振幅值变大，则可以检测到诸如操作不良的异常，因为这意味着滚动元件例如在滚道表面的粗糙部分上滚动。由于持续不良的润滑发展成诸如磨损或破损的异常，因此在该阶段的润滑剂的再填充处理可防止异常损坏，同时防止磨损或延长寿命。因此，通过简单的结构，能够对不使用滚动元件的装置的状态进行监视，并且在造成操作不良的损坏发生之前，检测出滚动体的故障。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006194629A Abnormality diagnosis apparatus 审中-公开
标题翻译：异常诊断装置
公开(公告)号：JP2006194629A
公开(公告)日：2006-07-27
申请号：JP2005004268
申请日：2005-01-11
申请人： Nsk Ltd , 日本精工株式会社
发明人： SAWARA JUNTARO , MUTO YASUYUKI , YAMAZOE MASANOBU
IPC分类号： G01M17/08 , B61D37/00 , B61K9/00 , G01H3/00 , G01H17/00
摘要： PROBLEM TO BE SOLVED: To provide an abnormality diagnosis apparatus for detecting the abnormality of the separation of a bearing, a flat wheel, or the like in a vehicle from a waveform signal from one vibration sensor by providing only one vibration sensor per vehicle.
SOLUTION: The abnormality diagnosis apparatus comprises a vibration sensor 21 for detecting the vibration of a vehicle, a parameter value detection circuit 22 for determining a RMS value from a waveform signal outputted by the vibration sensor 21, a peak detection circuit 23 for determining the peak value of the waveform signal, and a comparison circuit 24 for comparing a fixed-multiple value of a parameter value outputted from the parameter value detection circuit 22 with a peak value outputted from the peak detection circuit 23, and outputs a second voltage signal for indicating that the parameter value has exceeded a fixed reference or the first voltage signal or the parameter value is equal to or less than a fixed reference according to the comparison result, thus detecting abnormalities from the output of the comparison circuit 24.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种异常诊断装置，用于通过仅提供一个振动传感器从一个振动传感器的波形信号中检测车辆中的轴承，平轮等的分离异常车辆。解决方案：异常诊断装置包括用于检测车辆振动的振动传感器21，用于根据由振动传感器21输出的波形信号确定RMS值的参数值检测电路22，用于确定波形信号的峰值;以及比较电路24，用于将从参数值检测电路22输出的参数值的固定倍数与从峰值检测电路23输出的峰值进行比较，并输出第二电压根据比较结果指示参数值已超过固定参考值或第一电压信号或参数值等于或小于固定参考值的信号，从而从比较电路24的输出检测异常。
版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005233789A Abnormality diagnosis method of rotary machine, abnormality diagnosis apparatus, and abnormality diagnosis system 审中-公开
标题翻译：旋转机异常诊断方法，异常诊断装置和非正常诊断系统
公开(公告)号：JP2005233789A
公开(公告)日：2005-09-02
申请号：JP2004043436
申请日：2004-02-19
申请人： Nsk Ltd , 日本精工株式会社
发明人： SAWARA JUNTARO , MUTO YASUYUKI , YAMAZOE MASANOBU
IPC分类号： G01M99/00 , F16C19/52 , F16C41/00 , G01H17/00 , G01M19/00
摘要： PROBLEM TO BE SOLVED: To provide an abnormality diagnosis method and an abnormality diagnosis apparatus for precisely diagnosing the existence or the absence of abnormality in a rolling device in a rotary machine.
SOLUTION: After an acoustic signal detected by a piezoelectric sensor 101 is digitalized by an A/D converter 105 and is passed through a high-pass filter 108, it is amplitude demodulated by an FIR (finite impulse response) digital filter which is a Hilbert converter of an envelope processing part 109, and is processed with an envelope processing. This is converted into a frequency spectrum by an FFT (fast Fourier transform) processing at a frequency analysis part 111. The discrete value of the frequency spectrum is processed with an interpolation processing by a frequency spectrum interpolation processing part 112, and is inputted into an abnormality determination part 113 for a flaw or the like. The abnormality determination part 113 compares the frequency at the peak of the frequency spectrum processed by the interpolation processing with an abnormality characteristic frequency such as the flaw or the like calculated by the rotational velocity of the rolling device and a constant proper to the rolling device, at a characteristic frequency calculation part 121, and determines the abnormality according to the existence or the absence of the matching. The determination result is displayed on a display part 115 via a serial communication interface 114.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种异常诊断方法和异常诊断装置，用于精确诊断旋转机器中的滚动装置中是否存在异常。解决方案：在由压电传感器101检测到的声信号被A / D转换器105数字化并通过高通滤波器108之后，由FIR（有限脉冲响应）数字滤波器进行幅度解调，是信封处理部分109的希尔伯特转换器，并且用信封处理进行处理。通过频率分析部111的FFT（快速傅立叶变换）处理将其转换成频谱。频谱的离散值由频谱插值处理部112进行内插处理，并输入到用于缺陷等的异常判定部113。异常判定部113将通过插值处理处理的频谱的峰值处的频率与由滚动装置的旋转速度计算出的缺陷等的异常特性频率和对滚动装置的常数进行比较，在特征频率计算部121中，根据匹配的存在或不存在来判定异常。确定结果经由串行通信接口114显示在显示部分115上。版权所有（C）2005，JPO＆NCIPI

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