CN207007517U - A kind of motor rolling bearing failure diagnosis system - Google Patents
A kind of motor rolling bearing failure diagnosis system Download PDFInfo
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- CN207007517U CN207007517U CN201720897781.8U CN201720897781U CN207007517U CN 207007517 U CN207007517 U CN 207007517U CN 201720897781 U CN201720897781 U CN 201720897781U CN 207007517 U CN207007517 U CN 207007517U
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- 238000005096 rolling process Methods 0.000 title claims abstract description 29
- 238000003745 diagnosis Methods 0.000 title claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 230000001133 acceleration Effects 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 230000009466 transformation Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000007257 malfunction Effects 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
A kind of motor rolling bearing failure diagnosis system,Including pedestal,Motor,Vibration acceleration sensor,Photoelectric displacement sensor,Shaft coupling,Bearing block,Driven shaft,Rotating disk,Signal conditioner,Data acquisition unit and microcomputerized controller,Motor is fixed on quake-proof seat,Quake-proof seat is fixed on pedestal,The 12 o'clock direction of electric motor end cap,3 o'clock direction and 9 o'clock direction be fixed with 3 vibration acceleration sensors,Photoelectric displacement sensor is provided between driving shaft and shaft coupling,Shaft coupling adds protective cover between the bearing block of right side,The center displacement that the diagnostic system vibration to motor simultaneously and spindle rotation occur measures,The malfunction of motor rolling bearing is judged by dual parameter,Obtained result is more accurate,And the diagnostic system has installed guard system additional,The diagnostic system is more simplified,More convenient operation and all detecting instruments are fixed on same diagnostic platform,Can effectively save detection space.
Description
Technical field
It the utility model is related to motor rolling bearing failure diagnosis field, and in particular to a kind of motor rolling bearing fault is examined
Disconnected system.
Background technology
Motor is a kind of important rotating machinery, and it is covered with oil, chemical industry, metallurgy, coal, automobile, space flight etc.
Numerous engineering fields.The high speed of motor operation, make its reliability requirement to electric system very high.Rolling bearing is that motor is set
One of standby most important part, it is also one of part that damage is easiest in motor device.Therefore, the operation shape of rolling bearing
State directly influences the service behaviour of whole motor.According to statistics, 30% failure is all by rolling bearing in rotating machinery fault
It is caused, and the rolling bearing fault in generator failure accounts for 40% of electrical fault or so, the failure of stator accounts for 38%, turns
Sub- failure accounts for 10%, and other failures account for 12%, it can be seen that the quality of rolling bearing influences great on motor device.Motor rolls
Dynamic bearing health status detection with fault diagnosis then for judge motor can normal use provide important foundation.It is existing
Motor rolling bearing failure diagnosis is judged by technical parameters such as the vibration of motor, temperature, pressure, noises more.
The utility model of Application No. 201520916562.0 discloses a kind of rolling bearing fault detection and diagnostic system,
The vibrational state of motor is switched to electric signal by the diagnostic system by vibration acceleration sensor, and electric signal passes through a series of processing
After switch to data signal and transmit judged into computer, although the diagnostic system can roll to motor to a certain extent
Dynamic bearing failure is diagnosed, but is sensed in many of the running status of real electrical machinery interference signal, such as vibration acceleration
The quality of device can impact to motor eigentone, rely solely on and vibrate this single parameter to the event of motor rolling bearing
Barrier is judged easily to judge by accident, and the diagnostic system lacks safeguard procedures, and easily device operator is damaged, simultaneously
The diagnostic system, which is difficult to be placed in same diagnostic platform, to be diagnosed, and operation needs to take larger space.
Utility model content
The utility model devises a kind of motor rolling bearing failure diagnosis system, the diagnosis to solve the above problems
The center displacement that the system vibration to motor simultaneously and spindle rotation occur measures, by dual parameter to motor rolling
The malfunction of bearing is judged that obtained result is more accurate, and the diagnostic system has installed guard system additional, prevents from operating
Personnel are injured during diagnosis, while the diagnostic system is more simplified, more convenient operation and all detecting instruments are consolidated
, can effectively save detection space due on same diagnostic platform.
In order to realize above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is real by the following technical programs
Existing：
A kind of motor rolling bearing failure diagnosis system, including pedestal, motor, vibration acceleration sensor, photoelectric displacement
Sensor, shaft coupling, bearing block, driven shaft, rotating disk, signal conditioner, data acquisition unit and microcomputerized controller, motor are fixed on
On quake-proof seat, quake-proof seat is fixed on pedestal, and driving shaft is fixed on bearing by shaft coupling and driven axis connection, driven shaft
Between seat, be fixed with rotating disk on the driven shaft between bearing block, electric motor end cap 12 o'clock direction, 3 o'clock direction and 9 o'clock
Direction is fixed with 3 vibration acceleration sensors, and photoelectric displacement sensor, shaft coupling to the right side are provided between driving shaft and shaft coupling
Add protective cover between side shaft holder, signal conditioner, data acquisition unit and microcomputer control are fixed with the pedestal on the right side of protective cover
Device processed, vibration acceleration sensor and photoelectric displacement sensor are connected with signal conditioner respectively, and signal conditioner is adopted with data
Storage is connected, and data acquisition unit is connected with microcomputerized controller；
DSP signal processors based on wavelet transformation built in described microcomputerized controller, vibration acceleration sensor and light
Electric displacement sensor by analog signal transmission to signal conditioner and amplified is transmitted to data acquisition unit, data acquisition unit respectively
By analog signal through analog-to-digital conversion be data signal, built in digital data transmission to microcomputerized controller based on wavelet transformation
DSP signal processors carry out denoising, and data signal after treatment is shown by microcomputerized controller.
Preferably, the DSP signal processors based on wavelet transformation built in described microcomputerized controller use S7-200PLC
As master controller.
Preferably, described vibration acceleration sensor uses LC0159 type sensors.
Preferably, PCI1701HG multifunctional data acquisition cards built in described data acquisition unit.
Preferably, described photoelectric displacement sensor uses hall displacement transducer.
The beneficial effects of the utility model are：The diagnostic system vibration to motor simultaneously and spindle rotation occur inclined
Heart displacement is measured, and the malfunction of motor rolling bearing is judged by dual parameter, and obtained result is more accurate,
And the diagnostic system has installed guard system additional, prevent operating personnel from being injured during diagnosis, while the diagnostic system
More simplify, more convenient operation and all detecting instruments are fixed on same diagnostic platform can effectively save detection space.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, make required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is that a kind of motor rolling bearing failure diagnosis system obtains structural plan.
In accompanying drawing, the list of parts representated by each label is as follows：
1- pedestals, 2- motors, 21- electric motor end caps, 22- driving shafts, 3- quake-proof seats, 4- vibration acceleration sensors, 5-
Photoelectric displacement sensor, 6- shaft couplings, 7- bearing blocks, 8- driven shafts, 9- rotating disks, 10- protective covers, 11- signal conditioners, 12-
Data acquisition unit, 13- microcomputerized controllers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.
As shown in fig.1, a kind of motor rolling bearing failure diagnosis system, including pedestal 1, motor 2, vibration acceleration pass
Sensor 4, photoelectric displacement sensor 5, shaft coupling 6, bearing block 7, driven shaft 8, rotating disk 9, signal conditioner 11, data acquisition unit
12 and microcomputerized controller 13, motor 2 be fixed on quake-proof seat 3, quake-proof seat 3 is fixed on pedestal 1, and driving shaft 22 passes through
Shaft coupling 6 is connected with driven shaft 8, and driven shaft 8 is fixed between bearing block 7, is fixed with the driven shaft 8 between bearing block 7
Rotating disk 9, electric motor end cap 21 12 o'clock direction, 3 o'clock direction and 9 o'clock direction be fixed with 3 vibration acceleration sensors 4,
Photoelectric displacement sensor 5 is provided between driving shaft 22 and shaft coupling 6, shaft coupling 6 adds protective cover between right side bearing block 7
10, signal conditioner 11, data acquisition unit 12 and microcomputerized controller 13 are fixed with the pedestal on the right side of protective cover 10, and vibration accelerates
Degree sensor 4 and photoelectric displacement sensor 5 are connected with signal conditioner 11 respectively, and signal conditioner 11 connects with data acquisition unit 12
Connect, data acquisition unit 12 is connected with microcomputerized controller 13；
DSP signal processors based on wavelet transformation built in described microcomputerized controller 13, the He of vibration acceleration sensor 4
Photoelectric displacement sensor 4 respectively by analog signal transmission to signal conditioner 11 and it is amplified transmit to data acquisition unit 12, number
By analog signal be data signal through analog-to-digital conversion according to collector 12, built in digital data transmission to microcomputerized controller 13 based on
The DSP signal processors of wavelet transformation carry out denoising, and data signal after treatment is shown by microcomputerized controller 13.
Therein, the DSP signal processors based on wavelet transformation built in described microcomputerized controller 13 use S7-
200PLC is as master controller.
Therein, described vibration acceleration sensor 4 uses LC0159 type sensors.
It is therein, PCI1701HG multifunctional data acquisition cards built in described data acquisition unit 12.
Therein, described photoelectric displacement sensor 5 uses hall displacement transducer.
One of the present embodiment has particular application as：Single Point of Faliure is set on bearing first with plating process technology, so
Motor is fixed on quake-proof seat 3 afterwards, quake-proof seat 3 is fixed on pedestal 1, and vibration acceleration sensor 4 is fixed on into magnetic
Property base on, then by magnetic attract by vibration acceleration sensor 4 be fixed on electric motor end cap 21 12 o'clock direction, 3 points
Clock direction and 9 o'clock direction, then photoelectric displacement sensor 5 is fixed between driving shaft 22 and shaft coupling 6 and is aligned actively
The axis of axle, after the completion of fixed, the data connecting line of vibration acceleration sensor 4 and photoelectric displacement sensor 5 is accessed into signal
The access interface of conditioner 11；Motor is accessed into power supply, axis of rolling rotation occurs under the driving of power supply, now shakes for subsequent motor
The eccentricity value of the vibration frequency of motor and rolling bearing is converted to mould by dynamic acceleration transducer 4 and photoelectric displacement sensor 5
Intend signal and transmit to signal conditioner 11, signal conditioner 11 that the analog signal of reception is carried out into Isolation and put
Greatly, the analog signal after signal conditioner 11 is handled is converted to data signal by data acquisition unit 12, and data signal is passed
Transport in the DSP signal processors based on wavelet transformation of microcomputerized controller 13, data signal extracted after entering wavelet transformation
The continuous center displacement figure of actual spectrum figure and the rolling bearing rotation of motor oscillating, the frequency shown according to microcomputerized controller 13
Spectrogram and continuous center displacement figure are judged, draw the malfunction of motor rolling bearing.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
It is contained in reference to specific features, structure, material or the feature that the embodiment or example describe of the present utility model at least one
In embodiment or example.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or
Example.
The utility model preferred embodiment disclosed above is only intended to help and illustrates the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, it is only described embodiment also not limit the utility model.Obviously, according to this theory
The content of bright book, it can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably
Principle and practical application of the present utility model is explained, so that skilled artisan can be best understood by and utilize this
Utility model.The utility model is only limited by claims and its four corner and equivalent.
Claims (5)
1. a kind of motor rolling bearing failure diagnosis system, including pedestal, motor, vibration acceleration sensor, photoelectric displacement pass
Sensor, shaft coupling, bearing block, driven shaft, rotating disk, signal conditioner, data acquisition unit and microcomputerized controller, motor are fixed on anti-
Shake on base, quake-proof seat is fixed on pedestal, and driving shaft is fixed on bearing block by shaft coupling and driven axis connection, driven shaft
Between, it is fixed with rotating disk on the driven shaft between bearing block, it is characterised in that：Electric motor end cap 12 o'clock direction, 3 o'clock sides
3 vibration acceleration sensors are fixed with to 9 o'clock direction, photoelectric displacement sensor is provided between driving shaft and shaft coupling,
Shaft coupling is fixed with signal conditioner, data acquisition to protective cover is added between the bearing block of right side on the pedestal on the right side of protective cover
Device and microcomputerized controller, vibration acceleration sensor and photoelectric displacement sensor are connected with signal conditioner respectively, signal condition
Device is connected with data acquisition unit, and data acquisition unit is connected with microcomputerized controller；
DSP signal processors based on wavelet transformation built in described microcomputerized controller, vibration acceleration sensor and photopotential
Displacement sensor respectively by analog signal transmission to signal conditioner and it is amplified transmit to data acquisition unit, data acquisition unit is by mould
It is data signal to intend signal through analog-to-digital conversion, the letters of the DSP based on wavelet transformation built in digital data transmission to microcomputerized controller
Number processor carries out denoising, and data signal after treatment is shown by microcomputerized controller.
A kind of 2. motor rolling bearing failure diagnosis system according to claim 1, it is characterised in that：Described microcomputer control
The DSP signal processors based on wavelet transformation built in device processed are using S7-200PLC as master controller.
A kind of 3. motor rolling bearing failure diagnosis system according to claim 1, it is characterised in that：Described vibration adds
Velocity sensor uses LC0159 type sensors.
A kind of 4. motor rolling bearing failure diagnosis system according to claim 1, it is characterised in that：Described data are adopted
PCI multifunctional data acquisition cards built in storage.
A kind of 5. motor rolling bearing failure diagnosis system according to claim 1, it is characterised in that：Described photopotential
Displacement sensor uses hall displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720897781.8U CN207007517U (en) | 2017-07-21 | 2017-07-21 | A kind of motor rolling bearing failure diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720897781.8U CN207007517U (en) | 2017-07-21 | 2017-07-21 | A kind of motor rolling bearing failure diagnosis system |
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| Publication Number | Publication Date |
|---|---|
| CN207007517U true CN207007517U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720897781.8U Expired - Fee Related CN207007517U (en) | 2017-07-21 | 2017-07-21 | A kind of motor rolling bearing failure diagnosis system |
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| Country | Link |
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| CN (1) | CN207007517U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443758A (en) * | 2018-12-29 | 2019-03-08 | 哈尔滨理工大学 | A kind of compound diagnostic device of rotating machinery |
| CN109612727A (en) * | 2018-12-12 | 2019-04-12 | 中车株洲电机有限公司 | High-power electric locomotive traction motor bearing on-line vibration detection device |
| CN110044622A (en) * | 2019-03-28 | 2019-07-23 | 昆明理工大学 | A kind of rolling bearing initial failure prior-warning device and method |
-
2017
- 2017-07-21 CN CN201720897781.8U patent/CN207007517U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612727A (en) * | 2018-12-12 | 2019-04-12 | 中车株洲电机有限公司 | High-power electric locomotive traction motor bearing on-line vibration detection device |
| CN109443758A (en) * | 2018-12-29 | 2019-03-08 | 哈尔滨理工大学 | A kind of compound diagnostic device of rotating machinery |
| CN110044622A (en) * | 2019-03-28 | 2019-07-23 | 昆明理工大学 | A kind of rolling bearing initial failure prior-warning device and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |