CN205879533U - Motor bearing on -line monitoring and intelligent early warning system - Google Patents
Motor bearing on -line monitoring and intelligent early warning system Download PDFInfo
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- CN205879533U CN205879533U CN201620823799.9U CN201620823799U CN205879533U CN 205879533 U CN205879533 U CN 205879533U CN 201620823799 U CN201620823799 U CN 201620823799U CN 205879533 U CN205879533 U CN 205879533U
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Abstract
The utility model relates to a motor bearing on -line monitoring and intelligent early warning system belongs to the intelligent online monitoring field of motor. The system includes bearing temperature sensor, environment temperature sensor, bearing noise sensor, measures analysis module, display module, communication module, on -the -spot alarm module, bearing temperature sensor measurement bearing inner race locates real -time temperature, and environment temperature sensor measurement motor operational environment temperature is given measurement analysis module and coupling shaft and is held operation and the operating condition that the analytical judgement bearing is carried out to the data that noise sensor surveys, carries out early warning or warning through display module, bearing inner race 0 or on -the -spot bearing inner race 1. This system implementation motor bearing's early warning and warning, discovery in time, in time handle, effectively avoided bearing failure's expansion, improved maintenance maintenance efficiency greatly. And the structure is simple and the installation is convenient, the cost is lower, but wide application in the bearing intelligent online monitoring of middle -size and small -size motor.
Description
Technical field
This utility model relates to a kind of motor bearings on-line monitoring system, particularly a kind of supervises online realizing motor bearings
While survey, moreover it is possible to carry out the system of intelligent early-warning, belong to the intelligent online monitoring field of motor.
Background technology
Bearing is widely used a kind of common apparatus, its work bar in the motors such as electric power, metallurgy, aviation field
Part also very severe.Bearing plays a part bearing load and transfer charge in motor, and its running status is the most normal, directly
Connecing the performance having influence on whole motor, bearing fault can cause the damage of motor winding and axle, causes burning out and damaging of equipment,
The motor performance deterioration simultaneously caused or hang-up, also can bring immeasurable loss, therefore to bearing to commercial production
The monitoring of running status is the most necessary with early warning.But due to problems such as costs, especially middle and small motor, the most do not carry out axle
The monitoring held and early warning.
The Bearing testing method that present stage uses is generally manual detection and the detection of single piece of information source, is listened by tester
Abnormal sound and use portable thermal detector to differentiate bearing working state, this method of testing due to the difference of tester, inspection time
Between and the impact etc. of environment, test equipment testing result all can be caused inaccurate, not in time.Single piece of information source detection method
As Chinese patent " a kind of motor bearings condition monitoring system " (application number: 201220323453.4) propose bearing temperature
Line is monitored, but carries out limit value according only to the temperature of bearing and judge to report to the police, influenced by environmental temperature, rate of false alarm is high, it determines
According to single, bearing fault tendency can not be carried out in advance early warning；Lack bearing fault to recheck, it is difficult to quickly find out that fault is former
Cause, impact produces；And in the case of unmanned, it is impossible to notify operations staff in time, in order to take to arrange at the fault initial stage
Execute, it is to avoid the extension etc. of fault.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model proposes a kind of motor bearings on-line monitoring and intelligent early-warning system
System.The outer ring variations in temperature and the bearing noise change that cause after abnormal based on motor bearings are monitored, and occur at motor bearings
Can diagnose in time during fault tendency, timely early warning, process in time, effectively prevent the expansion of fault, and caused by it
The serious consequences such as equipment damage and unexpected shutdown.Native system simple in construction, easy for installation, cost is relatively low, be effectively improved early warning and
Report to the police accuracy rate, avoid wrong report, facilitate operations staff's in-situ processing simultaneously.
This utility model solves its technical problem and be the technical scheme is that
Described motor bearings on-line monitoring and intelligent early-warning system include that bearing temperature sensor (1), ambient temperature pass
Module (3), display module (4), communication module (5), onsite alarming module (6) are analyzed in sensor (2), measurement；Bearing temperature senses
Device (1) is holed at electric motor end cap and is inserted, and is in close contact with motor bearings outer ring, and at the bearing outer ring that will record, real time temperature send
Giving to measure and analyze module (3), environment temperature sensor (2) measures motor operating ambient temperature, gives measurement and analyzes module (3),
Bearing outer ring temperature is subtracted each other with ambient temperature, obtains the real-time temperature rise of bearing outer ring.
Bearing inner, faulty lubrication and oil exist impurity all can cause abrasion, axle owing to foreign body enters during bearing operation
Holding and operate under heavy duty, high speed, in the short time, local reaches a high temperature, therefore by analyzing bearing temperature ascendant trend and temperature rise
Value, can differentiate the bearing fault speed of development, in order to take measures in time.Based on this, native system is measured and analyzes module (3)
, there is the aggravation of short time temperature rise ascendant trend or exceedes the ascending threshold of setting in the variation tendency of analysis axis bearing outer-ring temperature rise
Situation, as the criterion of bearing abnormity early warning；Here use temperature rise, be the impact in order to eliminate variation of ambient temperature as far as possible.
Different bearings, under it runs well, each own fixing temperature rise ascendant trend, and in the middle temperature of operation process
Rising and can rise to a stable value, once there is fault in bearing, and ascendant trend has an obvious ANOMALOUS VARIATIONS, and temperature rise meeting
Exceed stationary value under normal circumstances.Therefore, Long-term change trend and temperature rise value are carried out early warning as fault tendency.
It addition, the temperature value of bearing outer ring also can directly reflect work and the health status of bearing, and in temperature rise only
In the case of limit, owing to ambient temperature is too high, heat radiation difficulty, and cause Bearing Temperature, also can affect the workability of bearing
Energy and service life.Measure and analyze module (3) by the threshold value of warning of the observed temperature value of bearing outer ring and setting and alarm threshold value
Compare, exceed that the threshold value of warning of setting carries out early warning, the alarm threshold value that exceedes setting is reported to the police；When exceeding threshold value of warning
Time, remind staff's bearing working abnormal, when exceeding alarm threshold value, send alarm, remind staff's bearing fault tight
Weight, needs maintenance down.
Measure analyze module (3) by display module (4), communication module (5) or onsite alarming module (6) carry out early warning or
Report to the police.When bearing working occurs abnormal, onsite alarming module (6) can use the mode such as sound, light to remind field personnel, display
Module (4) also will display alarm state, and carrying out practically data such as bearing temperature value and noise figure, also can be through communication module
(5) notice central server (10), is taken measures by control centre timely schedule staff.
Carry out maintenance and the maintenance of bearing abnormal operation for the ease of ancillary staff, described system also include by
Key (7), after measuring and analyzing module (3) carry out early warning, operations staff's in-situ processing, by button (7) or communication module (5) to
Measure analysis module (3) and send the instruction that is disposed, then measure analysis module (3) and do not carry out in the snooze interval set
Early warning or warning.Typically occur that early warning main reasons is that ambient temperature is too high, bearing oil lacks, bearing fault tendency three
Kind, ambient temperature is too high directly just can directly be judged by ambient temperature and bearing temperature rise, and bearing oil disappearance with
Bearing fault tendency is accomplished by making a distinction, and after the most direct way is exactly early warning, first processes according to bearing oil disappearance, on
Owing to needing the time of sufficient lubrication after complete lubricating oil, it is therefore desirable between the delay time that early warning or warning locking are set
Every.
When, after the snooze interval through setting, measurement analysis module (3), automatically into rechecking duty, is setting
Reinspection time interval in, measure analyze module (3) condition meeting early warning again detected, then report to the police, recheck the time
After interval is terminated, measure analysis module (3) and be automatically restored to normal operating conditions.
Motor no longer detects, through the reinspection time interval set, the condition meeting early warning, illustrates that lubrication works, asks
Topic has solved.Prediction occurring again in the reinspection time interval set, illustrates that bearing heating is not due to lubrication problem and draws
When rising, i.e. bearing itself occurs in that major defect, it is therefore desirable to report to the police.After rechecking time interval, whether occur pre-
Alert, measure analysis module (3) and be required for automatically reseting, revert to normal operating conditions.
In order to improve the accuracy of early warning further, described system also includes bearing noise sensor (8), is installed on motor
On electric motor end cap near bearing, the noise collected is given measurement and analyzes module (3), measure analysis module (3) and make an uproar
Sound feature extraction, analyzes the duty judging bearing, and in conjunction with bearing temperature and bearing temperature rise data, the state carrying out bearing is pre-
Police and warning.
Even if bearing has slight stripping equivalent damage, also can send irregular abnormal sound, the bearing of about 14% is too early
Damage is that pollution is caused, and foreign matter enters bearing working face and causes aperiodic vibration and noise.If its noise is successive,
Then it is probably raceway and has wound；If its noise is with or without periodically, then it is that rolling element is impaired: if rolling element fragmentation, " file can be produced
Tooth sound, impulsive sound " etc..Therefore noise characteristic also has for the fault tendency of bearing and reflects intuitively, by temperature and noise one
Rise as information source, it is possible to preferably failure judgement tendency, Accurate Prediction fault progression.
Owing to motor rear and front end all has bearing, therefore bearing temperature sensor (1) is 2, is respectively connected to measure and divides
Analysis module (3), is monitored motor front and back bearings simultaneously；Accordingly, bearing noise sensor (8) is also 2, is respectively connected to
Measure and analyze module (3), motor front and back bearings is monitored simultaneously.
System includes mancarried device (9) and central server (10), measure analyze module (3) by bearing running temperature,
Temperature rise and noise data, and early warning and warning message, be sent to mancarried device (9) or center service through communication module (5)
Device (10)；Meanwhile, sent out to measuring analysis module (3) through communication module (5) by mancarried device (9) or central server (10)
Deliver letters breath, the various running parameters of described system are set.Staff can understand bearing whenever and wherever possible by portable unit (9)
Duty, can timely respond to when occurring abnormal, process in time, simultaneously facilitate execute-in-place；Central server (10) also may be used
To record bearing state at any time, the convenient reference to bearing biometry.
System includes data-interface (11), is directly connected to external electronic device (12), carries out data exchange.Can will survey
Temperature and noise data export in other external electronic device (12) such as computer, facilitate on-the-spot test attendant countershaft
Hold the further in-depth analysis of running status.
Compared with prior art, this utility model has the advantage that
1) use temperature rise to combine temperature and variation tendency carries out the fault tendency early warning of motor bearings, can send out as early as possible
There is deterioration and lacks the situations such as lubricating oil in existing motor bearings, improves early warning accuracy rate, effectively prevent the expansion of fault
The serious consequences such as the equipment damage greatly, and by it caused and unexpected shutdown.
2) the outer ring temperature caused after abnormal based on motor bearings and bearing noise are combined and are monitored early warning, carry further
The high accuracy rate of early warning and warning.
3) recheck the design of duty, be conducive to auxiliary operations staff to process in time, solve rapidly fault, it is to avoid fault
In-depth or long-time stopping production cause damage, and substantially increase maintenance maintenance efficiency.
4) use mancarried device or central server, make operations staff understand bearing state at any time, drastically increase
Early warning and processing speed, facilitate operations staff, it is to avoid causes bearing damage because of the development further of fault.
Additionally, the design of native system makes it also have the advantages such as simple in construction, easy for installation, cost is relatively low.
Accompanying drawing explanation
Fig. 1: system constitutes schematic diagram.
In figure: 1-bearing temperature sensor, 2-environment temperature sensor, 3-measures and analyzes module, 4-display module, and 5-leads to
News module, 6-onsite alarming module, 7-button, 8-bearing noise sensor, 9-mancarried device, 10-central server, 11-
Data-interface, 12-external electronic device.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
As it is shown in figure 1, motor front and back bearings is respectively arranged with a bearing temperature sensor (1) and bearing noise sensor respectively
(8), four sensors all probe into through the boring of electric motor end cap and are close to bearing outer ring, by the bearing temperature recorded and noise
Data are given measurement and are analyzed module (3).Environment temperature sensor (2) measures ambient temperature, and analyzes module (3) even with measuring
Connect.Measure analysis module (3) bearing outer ring temperature to be subtracted each other with ambient temperature, i.e. can get the real-time temperature rise of bearing outer ring.
Measure and analyze the bearing outer-ring temperature rise of module (3) analysis axis and the variation tendency of temperature, in conjunction with bearing sensor noise (8)
Data carry out feature of noise extraction and analyze judge, it is achieved the status early warning of bearing and warning.
Measure analyze module (3) by display module (4), communication module (5) or onsite alarming module (6) carry out early warning or
Report to the police.When bearing working occurs abnormal, onsite alarming module (6) can use the mode such as sound, light to remind field personnel, display
Module (4) also will display alarm state, and carrying out practically data such as bearing temperature value and noise figure, also can be through communication module
(5) notice central server (10), is taken measures by control centre timely schedule staff.
Button (7) is connected with measuring analysis module (3), arranges the duty of described system, and ancillary staff is carried out
The maintenance of bearing abnormal operation and maintenance.
Mancarried device (9) can pass through communication module (5) and analyze module (3) communication with measuring, reception bearing running temperature,
Temperature rise and noise data, and early warning and warning message, understand and analyze bearing duty whenever and wherever possible, and can arrange measurement
Analyze the various running parameters of module (3).
Data-interface (11) generally USB or RJ45 network interface etc., be connected with measuring analysis module (3), for directly
Connect the external electronic device (12) such as computer, temperature and the noise data of actual measurement are derived and done in-depth analysis further.
Claims (6)
1. motor bearings on-line monitoring and intelligent early-warning system, it is characterised in that: system includes bearing temperature sensor (1), ring
Module (3), display module (4), communication module (5), onsite alarming module (6) are analyzed in border temperature sensor (2), measurement；
Bearing temperature sensor (1) is holed at electric motor end cap and is inserted, and is in close contact with motor bearings outer ring, the bearing that will record
At outer ring, real time temperature is given measurement and is analyzed module (3), and environment temperature sensor (2) measures motor operating ambient temperature, gives
Measure and analyze module (3), bearing outer ring temperature is subtracted each other with ambient temperature, obtains the real-time temperature rise of bearing outer ring；
Measure the variation tendency analyzing the bearing outer-ring temperature rise of module (3) analysis axis, short time temperature rise ascendant trend aggravation or super occurs
Cross the situation of the ascending threshold set, as the criterion of bearing abnormity early warning；
Measure analysis module (3) threshold value of warning and the alarm threshold value of the observed temperature value of bearing outer ring with setting to be compared,
Exceed that the threshold value of warning of setting carries out early warning, the alarm threshold value that exceedes setting is reported to the police；
Measure analysis module (3) and carry out early warning or report by display module (4), communication module (5) or onsite alarming module (6)
Alert.
Motor bearings on-line monitoring the most according to claim 1 and intelligent early-warning system, it is characterised in that: system include by
Key (7), after measuring and analyzing module (3) carry out early warning, operations staff's in-situ processing, by button (7) or communication module (5) to
Measure analysis module (3) and send the instruction that is disposed, then measure analysis module (3) and do not carry out in the snooze interval set
Early warning or warning；After the snooze interval set, measurement analysis module (3), automatically into rechecking duty, is setting
In fixed reinspection time interval, measure analysis module (3) and the condition meeting early warning again detected, then report to the police, during reinspection
Between interval terminate after, measure analyze module (3) be automatically restored to normal operating conditions.
Motor bearings on-line monitoring the most according to claim 1 and intelligent early-warning system, it is characterised in that: system includes axle
Hold sensor noise (8), be installed on the electric motor end cap near motor bearings, the noise collected is given measurement and analyzes module
(3), measure analysis module (3) and carry out feature of noise extraction, analyze the duty judging bearing, in conjunction with bearing temperature and bearing
Temperature rise data, carry out status early warning and the warning of bearing.
4. according to the motor bearings on-line monitoring described in claim 1 or 3 and intelligent early-warning system, it is characterised in that: bearing temperature
Degree sensor (1) is 2, is respectively connected to measure and analyzes module (3), be monitored motor front and back bearings simultaneously；Accordingly, axle
Holding sensor noise (8) is also 2, is respectively connected to measure and analyzes module (3), be monitored motor front and back bearings simultaneously.
Motor bearings on-line monitoring the most according to claim 1 and intelligent early-warning system, it is characterised in that: system includes just
Portable device (9) and central server (10), measure analyze module (3) by bearing running temperature, temperature rise and noise data, and
Early warning and warning message, be sent to mancarried device (9) or central server (10) through communication module (5)；Meanwhile, by portable
Formula device (9) or central server (10) are analyzed module (3) transmission information through communication module (5) to measurement, are arranged described system
Various running parameters.
Motor bearings on-line monitoring the most according to claim 1 and intelligent early-warning system, it is characterised in that: system includes number
According to interface (11), it is directly connected to external electronic device (12), carries out data exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823799.9U CN205879533U (en) | 2016-08-02 | 2016-08-02 | Motor bearing on -line monitoring and intelligent early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823799.9U CN205879533U (en) | 2016-08-02 | 2016-08-02 | Motor bearing on -line monitoring and intelligent early warning system |
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| Publication Number | Publication Date |
|---|---|
| CN205879533U true CN205879533U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823799.9U Expired - Fee Related CN205879533U (en) | 2016-08-02 | 2016-08-02 | Motor bearing on -line monitoring and intelligent early warning system |
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| CN (1) | CN205879533U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017932A (en) * | 2016-08-02 | 2016-10-12 | 哈尔滨理工大学 | Online monitoring and intelligent early-warning system for motor bearing |
| CN108020783A (en) * | 2017-12-01 | 2018-05-11 | 哈尔滨工业大学 | A kind of motor temperature rise equivalent detecting method of short-time load excitation |
| CN108362497A (en) * | 2018-03-08 | 2018-08-03 | 云南电网有限责任公司电力科学研究院 | A kind of method and system judged extremely for water turbine set bearing temperature |
| CN109492833A (en) * | 2018-12-25 | 2019-03-19 | 洛阳中科协同科技有限公司 | A kind of bearing ring quality of production prediction technique based on decision Tree algorithms |
-
2016
- 2016-08-02 CN CN201620823799.9U patent/CN205879533U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017932A (en) * | 2016-08-02 | 2016-10-12 | 哈尔滨理工大学 | Online monitoring and intelligent early-warning system for motor bearing |
| CN106017932B (en) * | 2016-08-02 | 2020-01-03 | 哈尔滨理工大学 | Motor bearing on-line monitoring and intelligent early warning system |
| CN108020783A (en) * | 2017-12-01 | 2018-05-11 | 哈尔滨工业大学 | A kind of motor temperature rise equivalent detecting method of short-time load excitation |
| CN108020783B (en) * | 2017-12-01 | 2019-05-24 | 哈尔滨工业大学 | A kind of motor temperature rise equivalent detecting method of short-time load excitation |
| CN108362497A (en) * | 2018-03-08 | 2018-08-03 | 云南电网有限责任公司电力科学研究院 | A kind of method and system judged extremely for water turbine set bearing temperature |
| CN109492833A (en) * | 2018-12-25 | 2019-03-19 | 洛阳中科协同科技有限公司 | A kind of bearing ring quality of production prediction technique based on decision Tree algorithms |
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Legal Events
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180802 |