WO2003106960A1 - 転がり軸受の余寿命診断方法及びこの余寿命診断装置 - Google Patents
転がり軸受の余寿命診断方法及びこの余寿命診断装置 Download PDFInfo
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- WO2003106960A1 WO2003106960A1 PCT/JP2003/006652 JP0306652W WO03106960A1 WO 2003106960 A1 WO2003106960 A1 WO 2003106960A1 JP 0306652 W JP0306652 W JP 0306652W WO 03106960 A1 WO03106960 A1 WO 03106960A1
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- WIPO (PCT)
- Prior art keywords
- rolling bearing
- remaining life
- life
- lubricant
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
Definitions
- the present invention relates to a method for diagnosing the remaining life of a rolling bearing for estimating the remaining life of a rolling bearing provided in rotating equipment such as a pump and a fan, and a device for diagnosing the remaining life of the rolling bearing.
- Rolling bearings are widely used in the rotating parts of a wide range of equipment. If any of these rolling bearings become abnormal, various inconveniences such as the stoppage of the mechanical equipment will occur. In general, rolling bearings have high accuracy and can be used for a long time under appropriate operating conditions until fatigue rupture occurs due to repeated fatigue. However, the service life differs depending on the operating conditions and environment, and the same equipment and bearing may have different service lives.
- the method of predicting the increase in bearing vibration values is the most widely used prediction method. This method predicts the increasing tendency of bearing acceleration vibration using a straight line, quadratic curve, or exponential curve, and predicts the remaining time until a preset allowable vibration value is reached.
- the shock pulse method is a diagnostic method that uses a shock pulse (excessive compression wave) to detect rolling bearing failures early and diagnose the state of deterioration of lubricant.
- a shock pulse excessive compression wave
- the natural vibration is generated at the moment when the rolling element (coupling) of the rolling bearing comes into contact with the bearing ring, and a huge local pressure is applied in the material, which induces a “pressure wave” in the material. If irregularities are present on the contact surface, a large number of irregular pressure waves are generated at the moment of the contact.
- Each of these pressure waves is called an excessive compression wave (shock pulse), which is radiated from the point of contact in the form of ultrasonic waves through the bearing and inside the bearing housing.
- the deterioration state of the lubricant that is, the diagnosis of the thickness of the lubricant film of the bearing and the degree of damage, is diagnosed, and the timing for supplying the lubricant is determined.
- the AE method is a method of early detection of a rolling bearing failure and diagnosis of remaining life using an AE signal having a higher frequency than acceleration.
- This AE method is a diagnostic method that uses the AE signal, which is a phenomenon in which distortion energy that has been stored and propagates as sound when an object is deformed or crushed.
- This AE signal is the propagation of elastic waves when the elastic energy inside the material is released, and is not limited only to the case of destruction, but also covers the dislocation and transformation of the crystal structure of the material.
- the AE signal is processed by the AE sensor for the rolling bearing that rotates the AE signal, and the frequency of occurrence of the AE wave is observed to diagnose the rolling bearing.
- the remaining life is calculated by performing a curve regression to a quadratic curve or exponential function using the vibration value up to the life prediction point as a parameter, and calculating the period until the vibration value reaches an acceptable value.
- the deterioration state of the lubricant is estimated based on the frequency of occurrence of the shock pulse, and the timing for supplying the lubricant is determined.
- the AE method estimates the remaining life as well as the statistical prediction of acceleration vibration.
- the conventional shock pulse method described above can detect the deterioration of the lubricant at an early stage and determine the timing of replenishing the lubricant, but cannot accurately diagnose the remaining life from the current state.
- the above conventional AE method is compared with the above statistical method using acceleration. Although early diagnosis is possible, the AE (Acoustic Emission) sensor and signal processing circuit used for this diagnosis are expensive, and the AE waves are subtle, making it difficult to pick up ambient noise. Was.
- the present invention has been made to solve such a problem.
- an object of the present invention is to use a resonance frequency band signal or a high-frequency signal of an acceleration sensor to detect the contamination of a lubricant or the deterioration state of the lubricant, which greatly affects the life of a rolling bearing.
- a method and a device for diagnosing the remaining life of rolling bearings which can be detected at low cost, and can estimate the life of rolling bearings early and with high accuracy based on the detected dust and lubricant conditions.
- the relationship between the contamination state of the rolling bearing (3) and the vibration / bearing life, and the relationship between the deterioration of the lubricant and vibration and the bearing life are obtained by an experimental device.
- Vibration signals are obtained using the acceleration sensor (4) for the data collection means and the rolling bearing (3) to be diagnosed provided in the rotating equipment (1, 2) such as a pump and fan, and the highest sensitivity is detected.
- a measuring means for measuring a resonance frequency band signal or a high-frequency signal band of acceleration, a measurement value obtained by the measuring means, and data obtained by the basic data collecting means, wherein the rolling bearing to be diagnosed is used.
- (3) a judgment means for estimating the dust-mixed state and the deterioration state of the lubricant and calculating a remaining life of the rolling bearing to be diagnosed (3); and a remaining life diagnosis of the rolling bearing.
- Cutting method provided It is.
- the basic data collecting means in order to simulate a dust mixed state, an indent is generated on the rolling surface of the rolling bearing (3), and a relationship between the dust mixed state and the bearing vibration-life is measured.
- the rolling shaft Indentations are generated on the rolling surface of the bearing (3), and the relationship between dust contamination and bearing vibration / life is measured.
- a foreign matter is mixed into the lubricant of the rolling bearing (3), and the amount, size, or hardness of the foreign matter is changed, and the dust-mixed state and the bearing are changed. Measure the relationship between vibration and life.
- the amount of lubricant in the rolling bearing (3) is reduced, and the relationship between the state of deterioration of the lubricant and the bearing vibration ⁇ life is measured. Further, as another method of simulating the deterioration state of the lubricant, the lubricant of the rolling bearing (3) is oxidized and deteriorated, or water is mixed in the lubricant, and the deterioration state of the lubricant and the bearing are determined. Measure the relationship between vibration and life.
- the relationship between the dust mixing state and the vibration life in the basic data collection means is determined by a vibration signal in a resonance frequency band in which the acceleration sensor (4) can detect the sensitivity with the highest sensitivity.
- the relationship between the dust mixing state and the vibration / lifetime in the basic data collection means is obtained by a vibration signal in a high frequency band of the acceleration sensor (4).
- the relation between the deterioration state of the lubricant and the vibration / life in the basic data collecting means is determined by a vibration signal in a resonance frequency band in which the acceleration sensor (4) can detect with high sensitivity.
- the relation between the deterioration state of the lubricant and the vibration / life in the basic data collecting means is obtained by a vibration signal in a high frequency band of the acceleration sensor (4).
- the measuring means measures the state of dust inclusion, the generation of indentation due to dust incorporation, and the size of the indentation due to dust incorporation using a vibration signal in the resonance frequency band at which the acceleration sensor (4) can detect the sensitivity with the highest sensitivity. .
- the measuring means measures the state of dust inclusion, the occurrence of indentation due to dust entry, and the size of the indentation due to dust entry, based on the vibration signal of the high frequency band of the acceleration sensor (4).
- the measuring means is a resonance sensor capable of detecting the acceleration sensor with the highest sensitivity. Measure the state of deterioration of the lubricant using vibration signals in the frequency band. Alternatively, the measuring means measures a deterioration state of the lubricant by using a vibration signal in a high frequency band of the acceleration sensor (4).
- the determination means estimates a dust mixing state, an indentation due to dust mixing, or an indentation size due to dust mixing and calculates a remaining life based on a vibration signal in a resonance frequency band at which the acceleration sensor (4) can detect the sensitivity with the highest sensitivity. .
- the above-mentioned determination means estimates the state of trash inclusion, dents due to dust, or the size of dents due to dust, and calculates the remaining life, based on the vibration signal of the high frequency band of the acceleration sensor (4).
- the estimation of the deterioration state of the lubricant and the calculation of the remaining life by the determination means are performed by a vibration signal in a resonance frequency band in which the acceleration sensor (4) can detect the highest sensitivity, or a vibration signal in a high frequency band of the acceleration sensor (4). Ask for.
- the determination means it is preferable to use data on a bearing load, a rotation speed, an operation time and a rolling bearing number in a normal state of the rolling bearing to be diagnosed (3) which is measured in advance.
- the determination means calculates the increasing tendency of the low-frequency vibration signal of the acceleration by using the data obtained by the measurement means and the vibration data of the diagnosed rolling bearing (3) in a normal state measured in advance, and It is determined whether the diagnosed rolling bearing (3) is in the initial stage of deterioration or in the final stage.
- the determination means includes a resonance frequency band signal or a high frequency band signal of the acceleration sensor (4) of the bearing (3) to be diagnosed obtained by the measuring means, and a normal condition of the pre-measured rolling bearing (3). Using the vibration data at the time, it is determined whether the diagnosed rolling bearing (3) is in a normal deterioration process, a dust mixing process, or a lubricant deterioration process.
- the remaining life of the bearing is determined. And calculate the rated life.
- the size of the mixed dust is estimated based on the vibration data in the basic data collection means. Calculate the remaining life.
- the deterioration state of the lubricant is estimated from vibration data in the basic data collection means, Calculate the remaining life.
- the remaining life is calculated based on the increase tendency of the low frequency band vibration of the acceleration and the time from the contamination of dust or deterioration of the lubricant to the terminal of deterioration.
- the relationship between the acceleration and the dust-mixed state of the state of indentation formation in the rolling bearing when the lubrication is deteriorated due to the contamination of the dust or the deterioration of the lubricant is determined.
- the vibration signal is obtained using the acceleration sensor (4) for the rolling bearing (3) to be diagnosed provided in the rotating equipment (1, 2) whose remaining life is to be diagnosed, and the most sensitive detection is possible. Measure possible resonance frequency band signals or high frequency signals.
- the judgment means the measured value obtained by the measurement means, the data obtained by the basic data collection means, the pre-measured bearing load, the rotational speed, the operating time and the running time of the normal state of the rolling bearing to be diagnosed (3) are measured. Using the vibration data relating to the bearing bearing number, the state of contamination of the rolling bearing (3) to be diagnosed and the deterioration state of the lubricant are estimated, and the remaining life of the rolling bearing (3) to be diagnosed is calculated. I do.
- this determining means first, it is determined whether the rolling bearing (3) to be diagnosed is in the initial stage or the final stage by calculating the tendency of increase in vibration. When it is determined that the battery is in the early stage of deterioration, the determination is further made as follows. First, the resonance frequency band signal or the high frequency band signal of the acceleration sensor (4) of the rolling bearing (3) to be diagnosed obtained by the measuring means, and the vibration data of the rolling bearing (3) to be diagnosed at normal time measured in advance. Is used to determine whether the diagnosed rolling bearing (3) is in a normal deterioration process, a dust mixing process, or a lubricant deterioration process.
- the remaining life is calculated based on the increasing tendency of the low frequency vibration of the acceleration.
- the diagnostic method of the present invention not only predicts the tendency of the increase in vibration, but also observes the elapsed time from the contamination of the dust or the deterioration of the lubricant to the rapid increase in the acceleration, thereby providing a more accurate remaining life. Can be calculated.
- the present invention estimates the life of the rolling bearing (3) during the operation of the rotating device (1, 2), thereby determining the replacement time, and improving the efficiency of the device (1, 2). Maintenance becomes possible. For example, for rotating equipment (1, 2) in a power plant, it is easy to make a plan to replace rolling bearings (3) in the fall, avoiding summer, when the operating rate is high, and improve maintenance efficiency. Can be planned. Also, due to the lack of accuracy of the conventional remaining life diagnosis method, Early life expectancy diagnosis is possible for rotating equipment that had to be inspected earlier, making it possible to extend the inspection cycle and collect deterioration data easily, and perform maintenance according to the equipment from the conventional periodic inspection system. It is expected that the transition to state-based maintenance will be more efficient.
- the acceleration sensor (4) for measuring a vibration signal related to the rolling bearing (3) to be diagnosed whose remaining life is to be diagnosed, and the acceleration sensor (4) are used.
- An analog-to-digital converter (5) that converts the converted data, and a vibration signal or a high-frequency signal in the resonance frequency band that allows the highest sensitivity detection among the vibration signals converted by the analog / digital converter (5) Basic data describing the relationship between the dust extraction state and vibration / bearing life in the extracted feature quantity extraction unit (6) and the rolling bearing (3), and the relationship between lubricant deterioration and vibration-bearing life, and the pump ,
- the vibration data collected when the rolling bearing (3) under diagnosis provided in the rotating device (1, 2) such as a fan is in the normal state, and the bearing load, rotation speed, operating time and rolling bearing number By using the measurement result database (7) storing the data and the data mounted on the measurement result database (7), the diagnostic rolling bearing (3) extracted by the feature amount extraction unit (6) is used.
- a remaining life diagnosis unit (8) for judging contamination of the rolling bearing to be diagnosed (3) and deterioration of the lubricant based on the vibration signal, and diagnosing the remaining life thereof;
- a diagnostic result display section (9) for displaying the result of (8), and a device for diagnosing the remaining life of the rolling bearing, comprising:
- the remaining life diagnostic device of the above configuration can detect the intrusion of dust into the lubricant and the deterioration state of the lubricant at low cost by using the resonance frequency band signal or the high frequency signal of the acceleration sensor (4).
- the life of the rolling bearing (3) can be quickly and accurately estimated on the basis of the state of the dust and the state of the lubricant.
- the rolling shaft to be diagnosed is It is preferable to further include an inspection schedule 'diagnosis report output unit (10) for outputting a next inspection schedule and a report of the diagnosis result of the reception (3).
- the inspection schedule / diagnosis report output unit (10) is a printer (12) or a monitor.
- the present invention estimates the life of the rolling bearing (3) during the operation of the rotating equipment (1, 2), thereby enabling the inspection schedule to be replaced at the diagnostic report output unit (10).
- the replacement time is fixed, and more efficient equipment maintenance is possible. For example, a plan can be easily made for rotating equipment (1, 2) in a power plant if the rolling bearings (3) are replaced in the fall, avoiding summer, when the operating rate is high. Also, for equipment that had to be regularly inspected in the past, it was possible to judge the remaining life of the equipment early, so that the inspection cycle could be lengthened and deterioration data could be easily collected. It is possible to streamline the transition to a state-based maintenance system that performs maintenance according to the state of equipment.
- a transmission modem (11) for connecting the waveform data and the diagnosis result to an Internet line is further provided. This makes it possible to collect only vibration data at a remote location, diagnose the remaining life of the predetermined rolling bearing (3) at another remote location, and easily manage the diagnostic results.
- Fig. 1 is a block diagram showing the method for diagnosing the remaining life of the rolling bearing of the present invention:
- Fig. 2 shows an example of the motor to be diagnosed by the remaining life diagnosing method and an example of the rolling bearing provided in the rotating device. It is sectional drawing.
- FIG. 3 is a flowchart showing a method for diagnosing the remaining life of a rolling bearing.
- FIG. 4 is a flowchart showing part A (preparation stage of remaining life diagnosis in the determination means) in the flowchart of FIG.
- FIG. 5 is a flowchart showing a portion B (measurement means) in the flowchart of FIG.
- FIG. 6 is a flow chart showing part C (the remaining life diagnosis stage of the judgment means) in the flow chart of FIG.
- Fig. 7 is a graph showing the detection of indentations using vibration signals in the acceleration resonance frequency band.
- FIG. 8 is a graph showing the estimation of the indentation size using the vibration signal in the high acceleration frequency band.
- FIG. 9 is a graph showing the relationship between indentation size and life.
- FIG. 10 is a graph showing the relationship between lubricant film pressure and life.
- FIG. 11 is a block diagram showing a configuration of a device for diagnosing remaining life of a rolling bearing according to the present invention.
- Figure 1 is a sectional view showing an example of a rolling bearing provided in the object and comprising an electric motor rotating device for diagnosis
- Figure 2 is a block diagram showing the remaining service life diagnostic methods remaining life diagnosis method of a rolling bearing of the present invention It is.
- Fig. 3 is a flowchart showing the method for diagnosing the remaining life of a rolling bearing.
- FIG. 4 is a flowchart showing part A of the flowchart of FIG. 3 (remaining life diagnosis preparation stage of the determination means).
- FIG. 5 is a flowchart showing a portion B (measuring means) in the flowchart of FIG.
- FIG. 6 is a flow chart showing a C portion (remaining life diagnosis stage of the judgment means) in the flow chart of FIG.
- the method for diagnosing the remaining life of a rolling bearing includes a basic data collection means for collecting in advance an experimental machine a relation between a dust-incorporated state, a deterioration state of a lubricant and vibration, and a life, and rotating equipment such as a pump and a fan. Or rotating mechanism such as motor 2 Measuring means for measuring the resonance frequency band signal or high-frequency signal of the rolling bearing 3 to be diagnosed, which is to diagnose the remaining life provided in the portion, and determining means for determining the remaining life of the rolling bearing 3 to be diagnosed. It is.
- the basic data collection means in order to simulate the contamination of dirt, a flaw is directly formed on the rolling surface of the disassembled bearing to generate an indentation on the bearing, and the lubricant is used to simulate the deterioration state of the lubricant. Perform tests with a reduced load bearing using a bearing load tester and collect basic data.
- Other methods of simulating dust inclusion include mixing foreign matter in place of dust in the lubricant, changing the amount and size of the mixed foreign matter, and changing the hardness of the mixed foreign matter. is there.
- methods of simulating the deterioration of a lubricant include using a lubricant that has been oxidized and degraded and mixing water.
- the main degradation modes of the rolling bearing 3 are two degradation modes: internal origin type and surface origin type.
- internal origin type peeling the repetitive stress applied to the rolling element rolling surface is concentrated below the surface of the rolling surface, and peeling occurs from the inside of the rolling surface.
- Surface-initiated type peeling is a phenomenon in which foreign matter such as dust is mixed into a lubricant, causing damage to the rolling surface and peeling from the rolling surface.
- the original life of the bearing is the life in the internal starting type peeling mode, and this life has been extended to several to several tens of times the rated life of the bearing due to recent advances in material technology.
- the life of the surface-originated peeling mode due to the inclusion of foreign matter in the lubricant is remarkably shortened from a fraction of the life of the internal origin-type peeling to several tenths.
- the rolling bearing 3 has various deterioration modes, and these deterioration modes. Considering the rupture mechanism is very important in the remaining life diagnosis of the bearing. Is important. Accordingly, in the present invention, in consideration of such a deterioration mode of the rolling bearing 3, in order to diagnose the remaining life which can be diagnosed earlier and has higher accuracy than before, a basic data collecting means is premised on the assumption. Using.
- the remaining life diagnosis preparation stage and the measuring means of the judging means are taken.
- the remaining life diagnosis preparation stage with respect to the rolling bearing 3 to be diagnosed, data on a bearing load, a rotation speed, an operation time, a rolling bearing identification number, and vibration data in a normal state using the acceleration sensor 4 are collected.
- the measuring means obtains a vibration signal using the acceleration sensor 4 with respect to the rolling bearing 3 to be diagnosed during operation, and measures a resonance frequency band signal or a high frequency band signal at which the most sensitive detection is possible.
- the diagnosed rolling bearing 3 is in the initial stage of deterioration or in the final stage.
- the remaining life diagnosis stage it is determined whether the rolling bearing 3 to be diagnosed is in the initial stage of deterioration or in the terminal stage by calculating the tendency of increase in vibration.
- the resonance frequency band signal or high frequency band signal of the acceleration sensor of the diagnosed rolling bearing 3 obtained by the measuring means, and the normal rolling vibration data of the rolling bearing 3 measured in the remaining life diagnosis preparation stage.
- the bearing state is a normal deterioration process, and the rated life is calculated as the remaining life.
- the rated life is calculated using the general formula (1).
- the size of the mixed dust is estimated from vibration data in the basic data collection means, and the remaining life is estimated. calculate.
- the deterioration of the lubricant is estimated from the vibration data in the basic data collecting means, and its remaining life is calculated. .
- the remaining life is calculated based on the tendency of the acceleration to increase the vibration in the low frequency band and the time from the contamination of dust or the deterioration of the lubricant to the terminal stage of deterioration.
- a more accurate remaining life can be calculated by observing the elapsed time from the entry of dust to the rapid increase in acceleration.
- the present invention estimates the service life of the rolling bearings 3 during the operation of the rotating devices 1 and 2, thereby determining the replacement time, thereby enabling more efficient maintenance of the rotating devices 1 and 2. .
- the present invention estimates the service life of the rolling bearings 3 during the operation of the rotating devices 1 and 2, thereby determining the replacement time, thereby enabling more efficient maintenance of the rotating devices 1 and 2. .
- rotating equipment 1 and 2 in a power plant it is possible to easily make a plan to replace the rolling bearing 3 in the fall, avoiding the summer when the operating rate is high.
- Figure 7 shows the size of the indentation simulating dust contamination and the highest sensitivity of the acceleration sensor.
- 6 is a graph showing a relationship between a vibration signal in a resonance frequency band in which IS detection is possible.
- the detection of the occurrence of an indentation due to dust in the basic data collecting means, the measuring means, and the judging means is obtained by a vibration signal in the resonance frequency band in which the acceleration sensor 4 can detect the highest sensitivity.
- the size of the indentation can be obtained from the vibration signal of the acceleration sensor 4 in the high frequency band.
- the vibration signal in the acceleration resonance frequency band near the 20 kHz to 40 kHz band becomes very large. It can be seen that the indentation can be easily detected.
- Fig. 8 is a graph showing the relationship between the size of the indentation simulating dust contamination and the vibration signal in the high frequency band of the acceleration sensor.
- the vibration signal in the high acceleration frequency band near the 5 kHz to 20 kHz band increases proportionally, and the size of the indentation can be easily estimated. I understand.
- Figure 9 is a graph showing the effect of the indentation on rolling bearing life.
- the life of a normal rolling bearing is relative life 1 (the rated life is relative life 1)
- the life of a bearing with an indentation is much shorter than that, and it is less than the rated life of lZl00.
- the determining means of the present invention estimates based on such a relationship between the indentation size and the life.
- FIG. 10 is a graph showing the relationship between lubricant film pressure and life.
- the relative life of the rolling bearing 3 to be diagnosed decreases sharply to 2.5 or less, and the relative life may be reduced to about 0.2.
- Such a sudden decrease in life is due to metal contact caused by a break in the oil film pressure on the raceway surface and the rolling surface.
- the determination means of the present invention is based on: In the same manner as the remaining life diagnosis of the rolling bearing 3 in the state, the deterioration state (oil film parameter) of the lubricant is estimated by using the most sensitive resonance frequency band signal or the high frequency band signal of the acceleration sensor 4, and the lubricant Diagnose the remaining life of the battery in the degraded state.
- FIG. 11 is a block diagram showing the configuration of a device for diagnosing the remaining life of a rolling bearing.
- the device for diagnosing the remaining life of a rolling bearing includes an acceleration sensor 4, an analog Z-digital converter 5, a feature amount extraction unit 6, a measurement result database 7, a remaining life diagnosis unit 8, and a diagnosis result display unit 9. , Inspection schedule, a diagnostic report output unit 10 and a transmission modem 11.
- the analog Z-to-digital converter 5 converts the data obtained by the acceleration sensor 4 for the rolling bearing 3 and the like to be diagnosed whose remaining life is to be diagnosed.
- the feature quantity extracting unit 6 extracts a vibration signal in a resonance frequency band in which the highest sensitivity can be detected, from among the vibration signals converted by the analog Z-digital converter 5.
- the measurement result database 7 contains, as described above, basic data on the relationship between the contamination of the experimental machine, deterioration of the lubricant, and vibration ⁇ Life, rotating equipment 1 such as pumps and fans, or motor 2
- the remaining life diagnosis unit 8 uses the data stored in the measurement result database 7 to remove dust from the rolling bearing 3 under diagnosis based on the vibration signal of the rolling bearing 3 under diagnosis extracted by the feature amount extraction unit 6. Judgment is made to determine the mixing state and the deterioration state of the lubricant, and the remaining life is diagnosed.
- the diagnosis result display section 9 displays the result of the remaining life diagnosis section 9.
- Inspection schedule 'Diagnosis report output unit 10 is the diagnosis of remaining life diagnosis unit 9 Based on the result, the next inspection schedule of the rolling bearing 3 to be diagnosed and a report of the diagnosis result are output to the printers 1, 2 and the like.
- the present invention estimates the service life of the rolling bearings 3 during the operation of the rotating devices 1 and 2, thereby determining the replacement cycle or the replacement time in the inspection schedule ⁇ diagnosis report output unit 10, and thereby improving the efficiency. Maintenance of various devices becomes possible. For example, for the rotating equipment 1 and 2 in the power plant, it is possible to easily make a plan to replace the rolling bearing 3 in the fall season while avoiding the summer when the operation rate is high.
- the contamination of the lubricant and the deterioration of the lubricant can be detected at low cost by using the resonance frequency band signal or the high frequency signal of the acceleration sensor 4, and the detected dust can be detected.
- the life of the rolling bearing can be estimated with high accuracy based on the condition and the condition of the lubricant.
- the transmission modem 11 connects the waveform data and the diagnosis result to an Internet line. In this way, by connecting to the Internet line, the remaining life of the predetermined rolling bearing 3 can be easily estimated at a remote place.
- the present invention is not limited to the above-described embodiment of the present invention, and estimates whether the rolling bearing 3 to be diagnosed is in the initial stage or the final stage of deterioration, and calculates the remaining life of the rolling bearing 3 to be diagnosed.
- the method is not limited to the above-described configuration, but may be variously changed without departing from the gist of the present invention.
- the method for diagnosing the remaining life of a rolling bearing according to the present invention is based on a method of detecting the contamination of lubricant or the deterioration of the lubricant, which greatly affects the prediction of the life of the rolling bearing, by detecting a resonance frequency band signal or a high frequency signal of an acceleration sensor.
- a resonance frequency band signal or a high frequency signal of an acceleration sensor By using it, it is possible to inexpensively detect and estimate the life of the rolling bearing to be diagnosed with high accuracy based on the detected dust state and lubricant state. Therefore, the replacement period or replacement period of the rolling bearing is determined, and more efficient equipment maintenance becomes possible. For example, for rotating equipment at a power plant, it is easy to make a plan to replace rolling bearings in the fall, avoiding summer, when the operating rate is high.
- the device for diagnosing the remaining life of a rolling bearing according to the present invention can easily and accurately estimate the life of the rolling bearing with high accuracy by a compact device, and furthermore, by connecting to an Internet line, It is possible to easily determine the remaining life of a predetermined rolling bearing on the ground.
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- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Rolling Contact Bearings (AREA)
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003241825A AU2003241825A1 (en) | 2002-05-31 | 2003-05-28 | Method and apparatus for diagnosing residual life of rolling element bearing |
| CA002491985A CA2491985C (en) | 2002-05-31 | 2003-05-28 | Method of simulating roller bearing degradation and predicting residual service life and apparatus for performing such simulation and prediction |
| US10/515,182 US7813906B2 (en) | 2002-05-31 | 2003-05-28 | Method of predicting residual service life for rolling bearings and a device for predicting residual service life for rolling bearings |
| EP03733110A EP1510805A4 (en) | 2002-05-31 | 2003-05-28 | METHOD AND DEVICE FOR DIAGNOSIS OF THE REST LIFE OF A ROLLING MEMBER BEARING |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002160752A JP3880455B2 (ja) | 2002-05-31 | 2002-05-31 | 転がり軸受の余寿命診断方法及びこの余寿命診断装置 |
| JP2002-160752 | 2002-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003106960A1 true WO2003106960A1 (ja) | 2003-12-24 |
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| EP (1) | EP1510805A4 (ja) |
| JP (1) | JP3880455B2 (ja) |
| KR (1) | KR100715252B1 (ja) |
| CN (1) | CN100451600C (ja) |
| AU (1) | AU2003241825A1 (ja) |
| CA (1) | CA2491985C (ja) |
| TW (1) | TWI258581B (ja) |
| WO (1) | WO2003106960A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7559240B2 (en) | 2004-03-31 | 2009-07-14 | Chugoku Electric Power Co., Inc. | Method and device for assessing residual service life of rolling bearing |
| CN105758640A (zh) * | 2014-12-19 | 2016-07-13 | 安徽容知日新信息技术有限公司 | 旋转设备特征频率计算方法 |
Families Citing this family (95)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7318007B2 (en) * | 2003-12-31 | 2008-01-08 | United Technologies Corporation | Real time gear box health management system and method of using the same |
| DE102004048649A1 (de) * | 2004-10-06 | 2006-04-20 | Fag Kugelfischer Ag & Co. Ohg | Verfahren zur Zustandsüberwachung und Lebensdauerprognose wenigstens eines Wälzlagers in einer wälzgelagerten Vorrichtung |
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| JP2007310611A (ja) * | 2006-05-18 | 2007-11-29 | Ntn Corp | 軸受使用設備機器の監視・診断システム |
| CN100443876C (zh) * | 2006-07-13 | 2008-12-17 | 杭州轴承试验研究中心有限公司 | 滚动轴承寿命和可靠性强化试验机及其试验方法 |
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| US7914250B2 (en) * | 2006-12-08 | 2011-03-29 | General Electric Company | Method and system for estimating life of a gearbox |
| US20090006006A1 (en) * | 2007-06-29 | 2009-01-01 | Eric Jonathan Bauer | Method and Apparatus For Determining An End of Service Life |
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| WO2010074648A1 (en) | 2008-12-22 | 2010-07-01 | S.P.M. Instrument Ab | An analysis system |
| EP4033212A1 (en) * | 2008-12-22 | 2022-07-27 | S.P.M. Instrument AB | An analysis system |
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| US20120101863A1 (en) * | 2010-10-22 | 2012-04-26 | Byron Edwin Truax | Machine-management system |
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| WO2014161587A1 (en) | 2013-04-05 | 2014-10-09 | Aktiebolaget Skf | Method for processing data obtained from a condition monitoring system |
| WO2014161590A1 (en) * | 2013-04-05 | 2014-10-09 | Aktiebolaget Skf | Method for processing data obtained from a condition monitoring system |
| JP6192413B2 (ja) * | 2013-08-01 | 2017-09-06 | Ntn株式会社 | 軸受装置の振動解析方法、軸受装置の振動解析装置、および転がり軸受の状態監視装置 |
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| KR101473237B1 (ko) | 2014-08-08 | 2014-12-16 | 주식회사 두크 | 부스터 펌프 베어링 및 미케니컬 실의 교체주기 검출장치 |
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| DE102015002016A1 (de) | 2015-02-20 | 2016-08-25 | Senvion Gmbh | Prüfverfahren für ein Wälzlager |
| CN104964824B (zh) * | 2015-06-29 | 2017-10-24 | 中国人民解放军空军装备研究院航空装备研究所 | 带涡轮支承和外机匣的航空发动机主轴承试验器 |
| US10082443B2 (en) | 2016-02-26 | 2018-09-25 | General Electric Technology Gmbh | System and method for monitoring bearing health in a journal assembly |
| CN105631238B (zh) * | 2016-03-24 | 2018-05-04 | 河南科技大学 | 一种滚动轴承振动性能变异的检测方法及系统 |
| WO2017203868A1 (ja) | 2016-05-25 | 2017-11-30 | 株式会社日立製作所 | 転がり軸受疲労状態予測装置及び転がり軸受疲労状態予測方法 |
| CN107462417B (zh) * | 2016-06-02 | 2019-07-26 | 株洲时代新材料科技股份有限公司 | 一种低地板车固定铰中金属关节轴承的使用寿命检测方法 |
| JP6557183B2 (ja) * | 2016-06-28 | 2019-08-07 | ファナック株式会社 | 切削加工工具の寿命判定装置、寿命判定方法及びプログラム |
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| PL3309529T3 (pl) | 2016-10-11 | 2022-06-13 | Abb Schweiz Ag | Przewidywanie pozostałej użytecznej żywotności łożysk |
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| DE102019201121A1 (de) | 2018-02-01 | 2019-08-01 | Aktiebolaget Skf | Wälzlageranordnung, Vorrichtung und Verfahren zum Bestimmen eines verwendeten und/oder restlichen Zeitraums einer Fettgebrauchsdauer |
| ES2949879T3 (es) * | 2018-02-05 | 2023-10-03 | Ziehl Abegg Se | Procedimiento para la determinación de estados de operación de un ventilador |
| JP6540911B1 (ja) | 2018-02-21 | 2019-07-10 | 株式会社安川電機 | モータ制御システム、モータ制御装置、及びベアリング寿命診断方法 |
| CN110608179A (zh) * | 2018-06-14 | 2019-12-24 | 株式会社岛津制作所 | 真空泵 |
| CN110926588A (zh) * | 2018-09-19 | 2020-03-27 | 长鑫存储技术有限公司 | 一种半导体设备振动元件性能监测方法及系统 |
| EP3627134B1 (en) * | 2018-09-21 | 2021-06-30 | Siemens Gamesa Renewable Energy A/S | Method for detecting an incipient damage in a bearing |
| TWI669617B (zh) | 2018-10-12 | 2019-08-21 | 財團法人工業技術研究院 | 設備健康狀態監控方法及其系統 |
| KR102103331B1 (ko) * | 2018-11-26 | 2020-04-23 | 주식회사 원프레딕트 | 베어링의 고장발생 예측 장치 및 방법 |
| KR102223994B1 (ko) | 2019-02-21 | 2021-03-09 | 한국과학기술연구원 | 자가 발전용 베어링 모듈의 상태 진단 시스템 |
| JP2020158942A (ja) * | 2019-03-22 | 2020-10-01 | 津田駒工業株式会社 | 織機における製織関連装置の異常診断装置 |
| CN109900476A (zh) * | 2019-04-03 | 2019-06-18 | 华能淮阴第二发电有限公司 | 一种滚动轴承寿命耗损状态监测方法及系统 |
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| US11714028B2 (en) * | 2019-09-05 | 2023-08-01 | Simmonds Precision Products, Inc. | System and method for health monitoring of a bearing system |
| JP7290221B2 (ja) * | 2019-09-30 | 2023-06-13 | 国立大学法人大阪大学 | 余寿命予測システム、余寿命予測装置、および余寿命予測プログラム |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07218334A (ja) * | 1994-02-07 | 1995-08-18 | Nippon Steel Corp | 軸受の異常診断方法及び装置 |
| JPH07311082A (ja) * | 1994-05-20 | 1995-11-28 | Omron Corp | 回転機器の異常診断装置 |
| JPH112239A (ja) * | 1997-06-13 | 1999-01-06 | Nippon Seiko Kk | 転がり軸受の各種状態値を測定する装置 |
| JP2001124665A (ja) * | 1999-10-29 | 2001-05-11 | Toshiba Corp | 転がり軸受の診断装置及び診断方法 |
| JP2002148148A (ja) * | 2000-08-29 | 2002-05-22 | Nsk Ltd | 転がり軸受の寿命予測方法、寿命予測装置、寿命予測装置を使用した転がり軸受選定装置及び記憶媒体 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3705516A (en) | 1971-09-30 | 1972-12-12 | Northrop Corp | Method and apparatus for testing the condition of a machine |
| JPH0641769B2 (ja) * | 1985-02-20 | 1994-06-01 | 株式会社日立製作所 | 滑り軸受保護装置 |
| US5058434A (en) * | 1990-02-27 | 1991-10-22 | Carl Schenck Ag | Process for early detection of damage to machine parts |
| JPH09113416A (ja) * | 1995-10-17 | 1997-05-02 | Nippon Steel Corp | ころがり軸受の損傷診断方法 |
| JP2002023841A (ja) * | 2000-07-04 | 2002-01-25 | Asahi Eng Co Ltd | 設備機器診断システム |
| US6967586B2 (en) * | 2000-10-20 | 2005-11-22 | Sankyo Seiki Mfg. Co., Ltd. | Bearing test method, bearing test device, bearing monitoring device and storage device |
| JP2003130048A (ja) * | 2001-10-26 | 2003-05-08 | Nsk Ltd | 転がり軸受の寿命予測方法、寿命予測装置、寿命予測装置を使用した転がり軸受選定装置、プログラム及び環境係数決定方法 |
| US6763312B1 (en) * | 2003-01-11 | 2004-07-13 | Dynamic Measurement Consultants, Llc | Multiple discriminate analysis and data integration of vibration in rotation machinery |
| JP4504065B2 (ja) * | 2004-03-31 | 2010-07-14 | 中国電力株式会社 | 転がり軸受の余寿命診断方法 |
-
2002
- 2002-05-31 JP JP2002160752A patent/JP3880455B2/ja not_active Expired - Lifetime
-
2003
- 2003-05-14 TW TW092113032A patent/TWI258581B/zh not_active IP Right Cessation
- 2003-05-28 CA CA002491985A patent/CA2491985C/en not_active Expired - Fee Related
- 2003-05-28 CN CNB038124688A patent/CN100451600C/zh not_active Expired - Fee Related
- 2003-05-28 AU AU2003241825A patent/AU2003241825A1/en not_active Abandoned
- 2003-05-28 US US10/515,182 patent/US7813906B2/en not_active Expired - Fee Related
- 2003-05-28 KR KR1020047017405A patent/KR100715252B1/ko not_active Expired - Fee Related
- 2003-05-28 EP EP03733110A patent/EP1510805A4/en not_active Withdrawn
- 2003-05-28 WO PCT/JP2003/006652 patent/WO2003106960A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07218334A (ja) * | 1994-02-07 | 1995-08-18 | Nippon Steel Corp | 軸受の異常診断方法及び装置 |
| JPH07311082A (ja) * | 1994-05-20 | 1995-11-28 | Omron Corp | 回転機器の異常診断装置 |
| JPH112239A (ja) * | 1997-06-13 | 1999-01-06 | Nippon Seiko Kk | 転がり軸受の各種状態値を測定する装置 |
| JP2001124665A (ja) * | 1999-10-29 | 2001-05-11 | Toshiba Corp | 転がり軸受の診断装置及び診断方法 |
| JP2002148148A (ja) * | 2000-08-29 | 2002-05-22 | Nsk Ltd | 転がり軸受の寿命予測方法、寿命予測装置、寿命予測装置を使用した転がり軸受選定装置及び記憶媒体 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1510805A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7559240B2 (en) | 2004-03-31 | 2009-07-14 | Chugoku Electric Power Co., Inc. | Method and device for assessing residual service life of rolling bearing |
| CN105758640A (zh) * | 2014-12-19 | 2016-07-13 | 安徽容知日新信息技术有限公司 | 旋转设备特征频率计算方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2491985C (en) | 2008-07-29 |
| CN1659427A (zh) | 2005-08-24 |
| AU2003241825A1 (en) | 2003-12-31 |
| US20050246150A1 (en) | 2005-11-03 |
| JP3880455B2 (ja) | 2007-02-14 |
| CA2491985A1 (en) | 2003-12-24 |
| US7813906B2 (en) | 2010-10-12 |
| KR100715252B1 (ko) | 2007-05-08 |
| KR20050042079A (ko) | 2005-05-04 |
| EP1510805A1 (en) | 2005-03-02 |
| EP1510805A4 (en) | 2006-07-26 |
| AU2003241825A8 (en) | 2003-12-31 |
| TWI258581B (en) | 2006-07-21 |
| JP2004003891A (ja) | 2004-01-08 |
| CN100451600C (zh) | 2009-01-14 |
| TW200400347A (en) | 2004-01-01 |
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