WO2007015360A1 - 転がり軸受部品の評価法 - Google Patents
転がり軸受部品の評価法 Download PDFInfo
- Publication number
- WO2007015360A1 WO2007015360A1 PCT/JP2006/314041 JP2006314041W WO2007015360A1 WO 2007015360 A1 WO2007015360 A1 WO 2007015360A1 JP 2006314041 W JP2006314041 W JP 2006314041W WO 2007015360 A1 WO2007015360 A1 WO 2007015360A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling bearing
- rolling
- amplitude
- relationship
- value
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
Definitions
- the present invention relates to a method for evaluating a rolling bearing part for evaluating the shape of a part such as an inner ring, an outer ring, and a rolling element of a rolling bearing.
- the geometrically related force also determines the number of undulations that cause vibration (Non-Patent Documents 1 and 2), so the value of the number of angles can be managed independently. It is also done.
- the amplitude of the number of undulations can be quantitatively determined by performing a harmonic analysis using a roundness measuring device.
- Non-Patent Document 1 Tomoya Sakaro, Yoshinobu Akamatsu, “Vibration Simulation of Ball Bearing”, NTN Tech-Cal Review, 69th, 2001, p69-75
- Non-Patent Document 2 Yoshinobu Akamatsu, “Effect of Rolling Element Material on Bearing Vibration”, Tribology Conference Tribology Conference Proceedings, November 2001, p291 ⁇ 292
- An object of the present invention is to provide a method for evaluating a rolling bearing part that can easily and properly detect the shape deformation of the raceway surface of the rolling bearing part.
- the method for evaluating a rolling bearing part according to the present invention is a method for evaluating a rolling bearing part having a bearing ring or rolling element force in a rolling bearing, wherein each point of the rolling surface of the rolling bearing part is determined from a perfect circle.
- the process of calculating the difference between the number of undulations of the rolling surface and the amplitude by harmonic analysis of the measured values and the process of logarithmically converting the relationship between the obtained number of undulations and the amplitude of the waviness, and this logarithmic conversion The process of obtaining a regression line of the relationship between the number of undulations and the amplitude on the coordinated coordinates, and the deviation from the regression line of each point indicating the relationship between the swell and the number of angles on the logarithmically transformed coordinates. And a process for evaluating deformation of the rolling surface.
- the rolling surface of the raceway is a raceway surface.
- the deviation itself does not necessarily have to be calculated. For example, a reference value obtained by adding a predetermined value to a linear regression value and a value including the deviation It is also possible to evaluate the shape collapse by comparing with the measured value.
- the number of angles and amplitude are logarithmically converted from the result of harmonic analysis of the roundness of the rolling surface, and the shape collapse is evaluated based on the deviation from the regression line.
- An abnormal point can be detected by the degree of deviation from the relationship between the number of undulations and the amplitude. For this reason, it is possible to easily and appropriately detect the deformation of the rolling contact surface of the rolling bearing component, and by taking measures against the deformation, it is possible to reduce the vibration of the rolling bearing.
- the deviation from the linear relationship can be managed by the ratio between the deviation from the regression line on the logarithmically transformed coordinates and the standard deviation.
- a reference value appropriately determined on the basis of the standard deviation of the relationship between the number of undulations and the amplitude on the logarithmically transformed coordinates is used. You may determine with abnormality as evaluation of the shape collapse.
- the method for evaluating a rolling bearing part according to the present invention is a method for evaluating a rolling bearing part having a bearing ring or rolling element force in a rolling bearing, wherein each point of the rolling surface of the rolling bearing part is determined from a perfect circle.
- the process of calculating the difference between the number of undulations of the rolling surface and the amplitude by harmonic analysis of the measured values and the process of logarithmically converting the relationship between the obtained number of undulations and the amplitude of the waviness, and this logarithmic conversion The process of obtaining a regression line of the relationship between the number of undulations and the amplitude on the coordinated coordinates, and the deviation from the regression line of each point indicating the relationship between the swell and the number of angles on the logarithmically transformed coordinates. Since this method includes a process of evaluating the deformation of the rolling contact surface, it is possible to easily and appropriately detect the deformation of the raceway surface of the rolling bearing part.
- FIG. 1 is a cross-sectional view of a rolling bearing to which an evaluation method for a rolling bearing part that is applied to one embodiment of the present invention is applied.
- FIG. 3 A graph of the first stage data processing in the evaluation method.
- FIG. 4 is a graph obtained by data processing at the second stage in the evaluation method.
- FIG. 5 is a graph of data processing at the third stage in the evaluation method.
- This evaluation method for rolling bearing components is a method for evaluating rolling bearing components that are race rings or rolling elements in a rolling bearing.
- a rolling bearing for example, a plurality of rolling elements 3 made of steel balls are interposed between raceway surfaces la and 2a of inner ring 1 and outer ring 2 which are race rings, and these rolling elements 3 are held in cages.
- the rolling element 3 is a rolling bearing part to be evaluated.
- this rolling bearing component evaluation method is based on measuring the difference from each circle of the rolling surface of the rolling bearing component from a perfect circle, and swelling the rolling surface by harmonic analysis of the measured values.
- the process of obtaining the relationship between the number of angles and the amplitude of the wave (S 1), the process of logarithmically transforming the obtained relationship between the number of angles of the wave and the amplitude (S2), and the undulation of the wave on the logarithmically transformed coordinates The process of obtaining the regression line and standard deviation of the relationship between the number of angles and the amplitude (S3) and the deviation of each point indicating the relationship between the waviness and the number of angles on the logarithmically transformed coordinates (S4). Details of each process will be described next with reference to FIGS.
- FIG. 3 shows a measurement example of the relationship between the number of waviness angles and the amplitude of the rolling surface composed of the outer spherical surface of the rolling element 3.
- the figure shows the relationship between the number of undulation angles and the amplitude obtained from the harmonic analysis results of the measured values by measuring the difference in the round force at each point on the rolling surface of the rolling element 3. The difference from the perfect circle at each point on the rolling surface was obtained using a roundness measuring instrument (not shown).
- This figure plots each measurement point on the logarithmic X ⁇ y coordinate, with the horizontal axis (X axis) of the logarithmic display as the number of angles and the vertical axis (y axis) of the logarithmic display as the amplitude.
- the regression lines of these measurement points are also shown.
- Variable conversion to Logy.
- Figure 4 shows the conversion results. The standard deviation ⁇ of Y at this X—Y coordinate is calculated.
- FIG. 5 is a graph obtained by adding straight lines with ⁇ + ⁇ and ⁇ + 2 ⁇ to the regression line of FIG. Showing rough.
- the measured value on the right side of the straight line of ⁇ + 2 ⁇ is found to be 15 corner waviness. That is, from the graph of FIG. 5, it can be determined that the 15-angle undulation has a statistically large amplitude.
- the measured value of the ⁇ angle ( ⁇ is a natural number) waviness ⁇ ⁇ is a value obtained by adding a value m ⁇ based on the standard deviation to the value aX + b obtained by linear regression (aX + b + m ⁇ ) or more, it is judged as abnormal.
- a and b are constants.
- m is a constant set arbitrarily.
- the regression line aX + b and the standard deviation ⁇ are obtained, and if the measured value ⁇ is greater than or equal to the regression line value + m ⁇ , the method is used to evaluate abnormal undulations. From the relationship between the number of angles and the amplitude, it is possible to easily and properly detect the deformation of the rolling surface of the rolling element 3, which is a rolling bearing part. Therefore, it is possible to reduce the vibration of the rolling bearing, that is, the vibration of the mechanical device using the rolling bearing.
- the vibration caused by the undulation of the rolling bearing becomes a problem of the mechanical device in which the rolling bearing is incorporated, and it is natural that it is a problem.
- the rotation speed of the machine is ⁇ rotations per minute
- the frequency band with good hearing sensitivity is around 200 ⁇ .
- 2000 ( ⁇ 60) ⁇
- the number of angles is the excitation source. If the rated speed of the motor is 1800 rpm, n is approximately 67 squares. Therefore, using the above evaluation method, the amplitude of a specific angle may be managed according to the conditions used.
- m of ⁇ ⁇ may be changed according to the number of angles.
- m may be set to lZn, n 1/2, and the management value may be tightened as the number of corners increases.
- the target angular frequency range may be extracted and managed. For example, if the mechanical device has a natural frequency of 2000 Hz and the rotation speed of the inner ring 1 is 1800 rpm, the 60-force force around the 67th angle of the inner ring 1 may be managed in the range of about 80 angles.
- the rolling bearing that is a race ring such as the inner ring 1 or the outer ring 2 is described.
- the deformation of the raceway surfaces la and 2a which are rolling surfaces, can be easily and appropriately detected by the same evaluation method as described above.
- the rolling element is a cylindrical roller, a tapered roller, a spherical roller, or a needle roller.
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112006002009T DE112006002009T5 (de) | 2005-08-03 | 2006-07-14 | Bewertungsverfahren für ein Rollenlagerteil |
US11/989,755 US7877215B2 (en) | 2005-08-03 | 2006-07-14 | Evaluation method for rolling bearing part |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-224911 | 2005-08-03 | ||
JP2005224911A JP4753654B2 (ja) | 2005-08-03 | 2005-08-03 | 転がり軸受部品の評価法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007015360A1 true WO2007015360A1 (ja) | 2007-02-08 |
Family
ID=37708639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/314041 WO2007015360A1 (ja) | 2005-08-03 | 2006-07-14 | 転がり軸受部品の評価法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7877215B2 (ja) |
JP (1) | JP4753654B2 (ja) |
DE (1) | DE112006002009T5 (ja) |
WO (1) | WO2007015360A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2000685A1 (en) * | 2006-03-27 | 2008-12-10 | Ntn Corporation | Roller bearing |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2998019B1 (fr) * | 2012-11-12 | 2016-07-22 | Skf Aerospace France | Roulement, boitier comprenant un ensemble de roulement(s), procede et programme d'ordinateur associes |
CN103954450A (zh) * | 2014-05-19 | 2014-07-30 | 重庆交通大学 | 基于主成分分析的轴承寿命退化性能评估指标构建方法 |
JP2017093275A (ja) * | 2015-11-10 | 2017-05-25 | 育雄 久保 | 太陽光発電装置の実績データーをベースとした劣化や異常検知システム |
WO2019086123A1 (en) * | 2017-11-03 | 2019-05-09 | Abb Schweiz Ag | Arrangement for monitoring antifriction bearing of rotating shaft of rotating electric machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0658849A (ja) * | 1992-08-07 | 1994-03-04 | Nippon Seiko Kk | 振動検査装置 |
JP2000074048A (ja) * | 1998-08-31 | 2000-03-07 | Nippon Seiko Kk | 軸受スピンドル |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7421349B1 (en) * | 2006-05-15 | 2008-09-02 | United States Of America As Represented By The Secretary Of The Navy | Bearing fault signature detection |
-
2005
- 2005-08-03 JP JP2005224911A patent/JP4753654B2/ja not_active Expired - Fee Related
-
2006
- 2006-07-14 DE DE112006002009T patent/DE112006002009T5/de not_active Withdrawn
- 2006-07-14 US US11/989,755 patent/US7877215B2/en not_active Expired - Fee Related
- 2006-07-14 WO PCT/JP2006/314041 patent/WO2007015360A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0658849A (ja) * | 1992-08-07 | 1994-03-04 | Nippon Seiko Kk | 振動検査装置 |
JP2000074048A (ja) * | 1998-08-31 | 2000-03-07 | Nippon Seiko Kk | 軸受スピンドル |
Non-Patent Citations (1)
Title |
---|
AKAMATSU: "Jikuuke Shindo ni Oyobosu Tendotai Zaishitsu no Eikyo", JAPANESE SOCIETY OF TRIBOLOGISTS, TRIBOLOGY CONGRESS YOKOSHU, November 2001 (2001-11-01), pages 291 - 292, XP003007814 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2000685A1 (en) * | 2006-03-27 | 2008-12-10 | Ntn Corporation | Roller bearing |
EP2000685A4 (en) * | 2006-03-27 | 2012-10-03 | Ntn Toyo Bearing Co Ltd | ROLLER BEARING |
Also Published As
Publication number | Publication date |
---|---|
US20100089162A1 (en) | 2010-04-15 |
DE112006002009T5 (de) | 2008-07-03 |
JP4753654B2 (ja) | 2011-08-24 |
US7877215B2 (en) | 2011-01-25 |
JP2007040815A (ja) | 2007-02-15 |
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