CN103869246A - Motor bearing defect detecting system - Google Patents
Motor bearing defect detecting system Download PDFInfo
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- CN103869246A CN103869246A CN201410111762.9A CN201410111762A CN103869246A CN 103869246 A CN103869246 A CN 103869246A CN 201410111762 A CN201410111762 A CN 201410111762A CN 103869246 A CN103869246 A CN 103869246A
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- motor
- detecting system
- defect detecting
- production line
- control device
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Abstract
The invention discloses a motor bearing defect detecting system. The motor bearing defect detecting system is characterized by comprising a production line plc control device, a frequency changer, a control switch cabinet and a field connection box. The production line plc control device is connected to the frequency changer through a communication cable, the frequency changer, the control switch cabinet and the field connection box are connected in sequence through a power cable, and the field connection box is connected with a motor to be detected through the power cable. The communication cable for connecting the production line plc control device and the frequency changer is a Profibus DP communication cable. A control switch arranged in the control switch cabinet is an air switch. The motor bearing defect detecting system solves the problems that at present, the motor defect only can be statically detected through a detecting instrument, but the possible defects of a motor bearing cannot be detected through the instrument. According to the motor bearing defect detecting system, the dynamic operation situation of the motor can be judged in advance, the dynamic parameters of the motor are shown visually, and production repetition accidents, caused by bearing clamping and blocking, sweeping, eccentricity and the like, of the motor are effectively avoided.
Description
Technical field
The invention belongs to electrical fault detection technique field, is a kind of motor bearings defect detecting system specifically.
Background technology
Motor is easy to break down in machine operation for a long time, in order to guarantee that motor can normally move, just need to carry out preventative conventional sense to motor, detecting for motor the conventional method adopting is generally to adopt measuring instrument to detect static in the situation that, insulation situation and alternate resistance by testing of electric motors judge that can micro-machine normally move, but the data of these tests can only reflect that the insulating property of motor are good and bad, but cannot reflect the defect that motor bearings may exist, be easy to cause motor to find that cannot reach request for utilization is forced to change because repairing quality does not pass a test after on-line running, thereby produce repeated accident, have a strong impact on normal production.How the motor after repairing is further detected, to guarantee can stable operation becoming the current problem that needs solution after motor is reached the standard grade.
Therefore the invention provides a set of detection platform that can shift to an earlier date anticipation motor dynamics ruuning situation, intuitively embody motor dynamics parameter, effectively avoid motor because of bearing jam, sweep the production repetition accident that the defect such as thorax, bias causes.
Summary of the invention
The invention provides a kind of motor bearings defect detecting system, it can shift to an earlier date anticipation motor dynamics ruuning situation, intuitively embodies motor dynamics parameter, effectively avoid motor because of bearing jam, sweep the production repetition accident that the defect such as thorax, bias causes.
In order to address the above problem, the technical solution adopted in the present invention is: a kind of motor bearings defect detecting system, it is characterized in that, comprise production line plc control device, frequency converter, gauge tap cabinet, field wiring case, described production line plc control device is connected in frequency converter by communication cable, between described frequency converter, gauge tap cabinet and field wiring case, connect successively by power cable, described field wiring case is connected and is treated measured motor by power cable.
Communication cable between described connection production line plc control device and frequency converter is Profibus DP communication cable.
The gauge tap arranging in described gauge tap cabinet is air switch.
The invention has the beneficial effects as follows:
1. a kind of motor bearings defect detecting system of the present invention has solved current motor defects detection and can only rely on measuring instrument to detect static in the situation that, insulation situation and alternate resistance by testing of electric motors judge that can micro-machine normally move, but cannot reflect the defect that motor bearings may exist, be easy to cause motor to find to reach request for utilization after on-line running because repairing quality does not pass a test and be forced to change the problem of maintenance of again rolling off the production line.
2. this invention can shift to an earlier date the detection platform of anticipation motor dynamics ruuning situation, intuitively embodies motor dynamics parameter, effectively avoid motor because of bearing jam, sweep the production repetition accident that the defect such as thorax, bias causes.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention;
In figure: 1-production line plc control device, 2-frequency converter, 3-gauge tap cabinet, 31-gauge tap, 4-field wiring case, 5-communication cable, 6-power cable, 7-treat measured motor.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
As shown in Figure 1, a kind of motor bearings defect detecting system of the present invention, it comprises production line plc control device 1, frequency converter 2, gauge tap cabinet 3, field wiring case 4, described production line plc control device 1 is connected in frequency converter 2 by communication cable 5, between described frequency converter 2, gauge tap cabinet 3 and field wiring case 4, connect by power cable 6, described field wiring case 4 is connected and is treated measured motor 7 by power cable 6.
Communication cable 5 between described connection production line plc control device 1 and frequency converter 2 is Profibus DP communication cable.
The gauge tap 31 of described gauge tap cabinet 3 interior settings is air switch.Gauge tap 31 in gauge tap cabinet 3 can realize the function of overload trip protection, can avoid like this in testing process the valuable components and parts such as motor bearings locking overload damage frequency converter.
When test; first by frequency converter 2 carries on production line PLC control device 1; and frequency converter 2 is made as to " external control " pattern; accept the control of production line PLC control device 1; then input to frequency converter 2 according to the correlation parameter shown in motor nameplate to be detected; frequency converter 2 links together by gauge tap cabinet 3 and field wiring case 4, for the function that realizes overload protection gauge tap cabinet 3 inside between frequency converter 2 and field wiring case 4 arrange air switch to realize the protection to motor.In the time having the motor that needs detection, directly motor to be detected is connected on the power cable of field wiring case, and then power transmission changes trains or buses to carry out detection of dynamic.
In test process, can according to production model by production line PLC control device by corresponding command to frequency converter, frequency converter is controlled motor to be detected to realize the operating modes such as simulation production line lifting speed, high low speed, rotating after receiving instruction, thereby the test by these operating modes realizes for motor bearings jam, sweeps the pre-judgement of the defect such as thorax, bias, determine the whether good in machine working order of motor, effectively reduced simple dependence measuring instrument and electrical fault has been detected to the situation generation that cannot detect motor bearings defect.
In addition, this motor bearings defect detecting system can also depart from production line PLC control device, frequency converter is made as to " internal control " pattern, directly carries out manual test by manual adjustments speed preset.
In the time detecting, can be aided with the routine datas such as test insulation against ground, alternate resistance, after motor for subsequent use is reached the standard grade, can normally move guaranteeing., can also further check damaging the motor rolling off the production line, analyze burning reason, spot check, maintenance work to next step propose instruction meanwhile.
The mode matching by above-mentioned dynamic monitoring and Static Detection has like this realized the non-fault of motor and has moved at machine, effectively reduces the failure rate of motor after overhauling upper machine.
The above is the preferred embodiment of the present invention, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications are also regarded as protection scope of the present invention.
Claims (3)
1. a motor bearings defect detecting system, it is characterized in that, comprise production line plc control device, frequency converter, gauge tap cabinet, field wiring case, described production line plc control device is connected in frequency converter by communication cable, between described frequency converter, gauge tap cabinet and field wiring case, connect successively by power cable, described field wiring case is connected and is treated measured motor by power cable.
2. a kind of motor bearings defect detecting system as claimed in claim 1, is characterized in that, the communication cable between described connection production line plc control device and frequency converter is Profibus DP communication cable.
3. a kind of motor bearings defect detecting system as claimed in claim 1, is characterized in that, the gauge tap arranging in described gauge tap cabinet is air switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111762.9A CN103869246A (en) | 2014-03-25 | 2014-03-25 | Motor bearing defect detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111762.9A CN103869246A (en) | 2014-03-25 | 2014-03-25 | Motor bearing defect detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103869246A true CN103869246A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410111762.9A Pending CN103869246A (en) | 2014-03-25 | 2014-03-25 | Motor bearing defect detecting system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200956563Y (en) * | 2006-09-29 | 2007-10-03 | 纪胜春 | High-voltage AC winding motor rotor variable frequency speed-regulating control system |
| CN201589701U (en) * | 2010-01-08 | 2010-09-22 | 国电联合动力技术(连云港)有限公司 | Testing device of transmission chain system of wind generator set |
| CN101881814A (en) * | 2010-06-25 | 2010-11-10 | 西安久和能源科技有限公司 | Novel megawatt wind generating set testing system and testing method thereof |
| CN201868010U (en) * | 2010-08-16 | 2011-06-15 | 冯启荣 | Multipurpose programmable control cabinet for teaching of PLC (programmable logic controller) & frequency converter |
| CN102507180A (en) * | 2011-09-28 | 2012-06-20 | 郑州机械研究所 | Mobile constant-load gear-rack comprehensive performance test bed |
| CN203351100U (en) * | 2012-12-19 | 2013-12-18 | 辽宁省电力有限公司电力科学研究院 | Movable mould test bench for energy conversion based on permanent magnet wind generator |
| CN203732691U (en) * | 2014-03-25 | 2014-07-23 | 济钢集团有限公司 | Motor bearing defect detection system |
-
2014
- 2014-03-25 CN CN201410111762.9A patent/CN103869246A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200956563Y (en) * | 2006-09-29 | 2007-10-03 | 纪胜春 | High-voltage AC winding motor rotor variable frequency speed-regulating control system |
| CN201589701U (en) * | 2010-01-08 | 2010-09-22 | 国电联合动力技术(连云港)有限公司 | Testing device of transmission chain system of wind generator set |
| CN101881814A (en) * | 2010-06-25 | 2010-11-10 | 西安久和能源科技有限公司 | Novel megawatt wind generating set testing system and testing method thereof |
| CN201868010U (en) * | 2010-08-16 | 2011-06-15 | 冯启荣 | Multipurpose programmable control cabinet for teaching of PLC (programmable logic controller) & frequency converter |
| CN102507180A (en) * | 2011-09-28 | 2012-06-20 | 郑州机械研究所 | Mobile constant-load gear-rack comprehensive performance test bed |
| CN203351100U (en) * | 2012-12-19 | 2013-12-18 | 辽宁省电力有限公司电力科学研究院 | Movable mould test bench for energy conversion based on permanent magnet wind generator |
| CN203732691U (en) * | 2014-03-25 | 2014-07-23 | 济钢集团有限公司 | Motor bearing defect detection system |
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Application publication date: 20140618 |