CN203444034U - Fault diagnosis system of coal mining machine frequency converter - Google Patents
Fault diagnosis system of coal mining machine frequency converter Download PDFInfo
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- CN203444034U CN203444034U CN201320500907.5U CN201320500907U CN203444034U CN 203444034 U CN203444034 U CN 203444034U CN 201320500907 U CN201320500907 U CN 201320500907U CN 203444034 U CN203444034 U CN 203444034U
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- frequency converter
- microprocessor
- sensor
- diagnosis system
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Abstract
The utility model provides a fault diagnosis system of a coal mining machine frequency converter. The system comprises a frequency converter. 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. The frequency converter is internally provided with a temperature sensor which detects the working temperature of the frequency converter. The output ends of the current sensor, the voltage sensor and the temperature sensor are connected with a data processing module through a data collection card. The data processing module is connected with a microprocessor. The output end of the microprocessor is connected with an alarm device. According to the diagnosis system, the monitoring of parameters of current, voltage and temperature and the like in the operation of the frequency converter can be realized, through signal conversion and microprocessor processing, an alarm is carried out for an appeared fault, and the reliability of diagnosis is greatly raised.
Description
Technical field
The utility model relates to coal mining plant equipment field, is specifically related to a kind of fault diagnosis system of coalcutter frequency converter.
Background technology
Along with the development of coal industry, realize and alleviate manual labor, raising security, reach high yield, high-level efficiency, low consumed object, 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, device energy conservation transformation is imperative, so frequency control obtains and applies more and more widely and obtain good effect on coalcutter.Reason due to coalcutter working environment, frequency converter often breaks down, and the diagnosis for coalcutter frequency converter failure is all the experience that relies on technician substantially 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.
Utility model content
The utility model, for Problems Existing, provides a kind of fault diagnosis system of coalcutter frequency converter, improves the economic and social benefit in colliery.
In order to achieve the above object, the utility model 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 is all connected with display panel with the output terminal of microprocessor.
Further, in order to utilize in order to inquiry in the future, described data processing module is all connected with data memory module with the output terminal of microprocessor.
Further, described warning device is alarm lamp and hummer.
Current sensor in the utility model, voltage sensor and temperature sensor are the main input equipments of this fault diagnosis system, are also the Main Diagnosis indexs of fault diagnosis system.Wherein current sensor is used for detecting when frequency converter input end adds three-phase alternating current, the current value of inverter output terminal; Voltage sensor is used for detecting when frequency converter input end adds that three-phase alternating current, bus end add direct current, respectively the magnitude of voltage of corresponding lead-out terminal; 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, then the signal collecting is delivered to data processing module, data processing module converts the various signals that collect to needed physical quantity, 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 to send failure warning while exceeding the scope of setting value permission as actual value.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 utility model can be realized the monitoring to multiple parameters in frequency converter operational process, greatly improves the reliability of diagnosis.And diagnosis in time, shortens maintenance cycle, saved human and material resources.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model schematic block circuit diagram.
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 the current sensor 2 and voltage sensor 3 that is respectively used to detect its electric current, voltage, 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 is all 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, data processing module converts the various signals that collect to needed physical quantity, then be transported to microprocessor and compare to judge whether frequency converter breaks down, just drive warning device to send the failure warning of light and sound while exceeding the scope of setting value permission as actual value.
Above-described embodiment is not limited only to protection domain of the present utility model, all based on basic thought of the present utility model and all belonging in protection domain of the present utility model 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, 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, is characterized in that: described data processing module is all 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, is characterized in that: described data processing module is all 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, is characterized in that: described warning device is alarm lamp and hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500907.5U CN203444034U (en) | 2013-08-13 | 2013-08-13 | Fault diagnosis system of coal mining machine frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500907.5U CN203444034U (en) | 2013-08-13 | 2013-08-13 | Fault diagnosis system of coal mining machine frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444034U true CN203444034U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500907.5U Expired - Fee Related CN203444034U (en) | 2013-08-13 | 2013-08-13 | Fault diagnosis system of coal mining machine frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901301A (en) * | 2014-03-21 | 2014-07-02 | 北京天诚同创电气有限公司 | Fault diagnosis method for frequency converter |
| CN111780884A (en) * | 2020-06-30 | 2020-10-16 | 日照钢铁控股集团有限公司 | Frequency converter alarm method capable of setting temperature |
-
2013
- 2013-08-13 CN CN201320500907.5U patent/CN203444034U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901301A (en) * | 2014-03-21 | 2014-07-02 | 北京天诚同创电气有限公司 | Fault diagnosis method for frequency converter |
| CN111780884A (en) * | 2020-06-30 | 2020-10-16 | 日照钢铁控股集团有限公司 | Frequency converter alarm method capable of setting temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Su Junli Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |