CN103398745A - Failure diagnosis system for frequency converter of coal winning machine - Google Patents
Failure diagnosis system for frequency converter of coal winning machine Download PDFInfo
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- CN103398745A CN103398745A CN2013103558369A CN201310355836A CN103398745A CN 103398745 A CN103398745 A CN 103398745A CN 2013103558369 A CN2013103558369 A CN 2013103558369A CN 201310355836 A CN201310355836 A CN 201310355836A CN 103398745 A CN103398745 A CN 103398745A
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Abstract
The invention provides a failure diagnosis system for the frequency converter of a coal winning machine. The failure diagnosis system comprises the frequency converter, wherein the output terminal of the frequency converter is provided with a current sensor and a voltage sensor which are used for detecting the current and voltage of the frequency converter respectively; a temperature sensor for detecting the operating temperature of the frequency converter is arranged in the frequency converter; the output terminals of the current sensor, the voltage sensor and the temperature sensor are connected with a data processing module through a data acquisition card; the data processing module is connected with a microprocessor; the output terminal of the microprocessor is connected with an alarm device. The failure diagnosis system provided by the invention can monitor multiple parameters, such as current, voltage and temperature, in the operation process of the frequency converter, gives a failure alarm through signal conversion and microprocessor processing, and greatly improves diagnosis reliability.
Description
Technical field
The present invention relates to coal mining plant equipment field, be specifically related to a kind of fault diagnosis system of coalcutter frequency converter.
Background technology
Along with the development of coal industry, realize alleviating manual labor, improve security, reach high yield, high-level efficiency, low consumed purpose, coal mining activity all adopts coalcutter, and coalcutter is also to realize one of coal production mechanization and modern visual plant.Coalcutter is a large-scale complicated system that integrates mechanical, electric and hydraulic pressure, and work under bad environment, will cause the interruption of whole coal work if there is fault, cause huge economic loss.
Coalcutter is the nucleus equipment of coal-face, dark people's development along with China market economy, the volume increase in colliery, lower consumption and put forward the referred critical role of effect, the device energy conservation transformation is imperative, so frequency control obtains and applies more and more widely and obtain effect preferably on coalcutter.Reason due to the coalcutter working environment, frequency converter often breaks down, and the diagnosis for the coalcutter frequency converter failure is all the experience that relies on the technician basically at present, and not only maintenance cycle is long, rate of correct diagnosis is low, and consumed a large amount of human and material resources, have a strong impact on coal production.
Summary of the invention
The present invention is directed to Problems Existing, a kind of fault diagnosis system of coalcutter frequency converter is provided, improve the economic and social benefit in colliery.
In order to achieve the above object, the invention provides a kind of fault diagnosis system of coalcutter frequency converter, comprise frequency converter, the lead-out terminal of described frequency converter is provided with current sensor and the voltage sensor that is respectively used to detect its electric current, voltage, and frequency converter inside is provided with the temperature sensor that detects its working temperature; Described current sensor, voltage sensor are connected with data processing module by data collecting card with the output terminal of temperature sensor, and described data processing module is connected with microprocessor, and the output terminal of described microprocessor is connected with warning device.
Further, described data processing module all is connected with display panel with the output terminal of microprocessor.
Further, in order in order to inquiry in the future, to utilize, described data processing module all is connected with data memory module with the output terminal of microprocessor.
Further, described warning device is alarm lamp and hummer.
Current sensor in the present invention, voltage sensor and temperature sensor are the main input equipments of this fault diagnosis system, are also the Main Diagnosis indexs of fault diagnostic system.Wherein current sensor is used for detecting when the frequency converter input end adds three-phase alternating current, the current value of inverter output terminal; Voltage sensor with adopt detection when the frequency converter input end add three-phase alternating current, when the bus end adds direct current, the magnitude of voltage of corresponding lead-out terminal respectively; The temperature value of inside when temperature sensor is used for detecting frequency converter work.
Data collecting card is to current sensor, voltage sensor and data collection that temperature sensor is surveyed, the signal that then will collect is delivered to data processing module, the various signals that data processing module will collect convert needed physical quantity to, and this tittle will show on display panel simultaneously.Data after conversion are also delivered to microprocessor and are compared to judge whether frequency converter breaks down, just drive warning device while as actual value, exceeding the scope of setting value permission, send failure warning.Meanwhile this alarm state also shows on display panel, and the result of final data processing module, microprocessor all will be delivered to data memory module and store, and in order to inquiry in the future, utilizes.
Diagnostic system of the present invention can be realized the monitoring to multiple parameters in the frequency converter operational process, greatly improves the reliability of diagnosis.And diagnosis in time, shortens maintenance cycle, saved human and material resources.
The accompanying drawing explanation
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is schematic block circuit diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of fault diagnosis system of coalcutter frequency converter, comprise frequency converter 1, the lead-out terminal of described frequency converter 1 is provided with current sensor 2 and the voltage sensor that is respectively used to detect its electric current, voltage: 3, and frequency converter 1 inside is provided with the temperature sensor 4 that detects its working temperature; Described current sensor 2, voltage sensor 3 are connected with data processing module 6 by data collecting card 5 with the output terminal of temperature sensor 4, described data processing module 6 is connected with microprocessor 7, and the output terminal of described microprocessor is connected with alarm lamp 10 and hummer 11.
Further, described data processing module 6 all is connected with data memory module 8, display panel 9 with the output terminal of microprocessor 7.
Data collecting card is to current sensor, voltage sensor and data collection that temperature sensor is surveyed, and deliver to data processing module, the various signals that data processing module will collect convert needed physical quantity to, then be transported to microprocessor and compare to judge whether frequency converter breaks down, just while as actual value, exceeding the scope of setting value permission, drive the failure warning that warning device sends light and sound.
Above-described embodiment is not limited only to protection scope of the present invention, and all are based on basic thought of the present invention and all belonging in protection scope of the present invention of modifying or change.
Claims (4)
1. the fault diagnosis system of a coalcutter frequency converter, comprise frequency converter, it is characterized in that: the lead-out terminal of described frequency converter is provided with current sensor and the voltage sensor that is respectively used to detect its electric current, voltage, and frequency converter inside is provided with the temperature sensor that detects its working temperature; Described current sensor, voltage sensor are connected with data processing module by data collecting card with the output terminal of temperature sensor, and described data processing module is connected with microprocessor, and the output terminal of described microprocessor is connected with warning device.
2. the fault diagnosis system of a kind of coalcutter frequency converter according to claim 1, it is characterized in that: described data processing module all is connected with display panel with the output terminal of microprocessor.
3. the fault diagnosis system of a kind of coalcutter frequency converter according to claim 1, it is characterized in that: described data processing module all is connected with data memory module with the output terminal of microprocessor.
4. the fault diagnosis system of a kind of coalcutter frequency converter according to claim 1, it is characterized in that: described warning device is alarm lamp and hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103558369A CN103398745A (en) | 2013-08-13 | 2013-08-13 | Failure diagnosis system for frequency converter of coal winning machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103558369A CN103398745A (en) | 2013-08-13 | 2013-08-13 | Failure diagnosis system for frequency converter of coal winning machine |
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| CN103398745A true CN103398745A (en) | 2013-11-20 |
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| CN2013103558369A Pending CN103398745A (en) | 2013-08-13 | 2013-08-13 | Failure diagnosis system for frequency converter of coal winning machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843553A (en) * | 2015-04-17 | 2015-08-19 | 深圳市海浦蒙特科技有限公司 | Elevator inverter fault detection method and system |
| CN106325191A (en) * | 2016-11-16 | 2017-01-11 | 无锡巨通矿山机械有限公司 | Remote monitoring system for shearer |
| CN108426607A (en) * | 2018-03-15 | 2018-08-21 | 山东里能鲁西矿业有限公司 | A kind of automatic warning device and method of coalcutter Transient detection |
| CN110988514A (en) * | 2019-11-04 | 2020-04-10 | 佛山市高明基业冷轧钢板有限公司 | Intelligent fault monitoring system and method for frequency converter and storage medium |
-
2013
- 2013-08-13 CN CN2013103558369A patent/CN103398745A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843553A (en) * | 2015-04-17 | 2015-08-19 | 深圳市海浦蒙特科技有限公司 | Elevator inverter fault detection method and system |
| CN106325191A (en) * | 2016-11-16 | 2017-01-11 | 无锡巨通矿山机械有限公司 | Remote monitoring system for shearer |
| CN108426607A (en) * | 2018-03-15 | 2018-08-21 | 山东里能鲁西矿业有限公司 | A kind of automatic warning device and method of coalcutter Transient detection |
| CN110988514A (en) * | 2019-11-04 | 2020-04-10 | 佛山市高明基业冷轧钢板有限公司 | Intelligent fault monitoring system and method for frequency converter and storage medium |
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Application publication date: 20131120 |
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