CN203012415U - Measurement and control device for frequency converter of coal cutter - Google Patents
Measurement and control device for frequency converter of coal cutter Download PDFInfo
- Publication number
- CN203012415U CN203012415U CN 201320047845 CN201320047845U CN203012415U CN 203012415 U CN203012415 U CN 203012415U CN 201320047845 CN201320047845 CN 201320047845 CN 201320047845 U CN201320047845 U CN 201320047845U CN 203012415 U CN203012415 U CN 203012415U
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- frequency converter
- control device
- measure
- chip microcomputer
- measurement
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Abstract
The utility model provides a measurement and control device for a frequency converter of a coal cutter. The measurement and control device for the frequency converter of the coal cutter includes a keyboard and a display screen. An output terminal of the keyboard is connected with an input terminal of a single-chip microprocessor arranged inside. The display screen is in interactive connection with the single-chip microprocessor. The single-chip microprocessor is in interactive connection with a storage. The single-chip microprocessor is connected with the frequency converter electrically through a communication interface. The measurement and control device for the frequency converter of the coal cutter provided by the utility model is stable and reliable in operation and realizes operation control of the frequency converter of the electric-traction coal cutter and real-time monitoring and modification of system parameters effectively. At the same time, instant recovery of specific model parameters of the frequency converter is realized. The measurement and control device for the frequency converter of the coal cutter has good practical value for safe operation and maintenance of the mine frequency converter.
Description
Technical field
The utility model relates to coal mining plant equipment field, is specifically related to a kind of measure and control device 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, and along with making rapid progress of Power Electronic Technique, what domestic main flow fully-mechanized mining working was used at present is the electrical haulage double-ended shearer substantially, and namely its traction control mode is AC Converter Speed Regulation Patterns.Yet, when the maintainer carries out unit functional test or parameter adjustment to the frequency converter of electrical haulage shearer, need to realize by the chamber panel of opening the coalcutter frequency converter modification, the test of parameter, this is unallowed to gaseous mine, the dangerous situations such as gas explosion easily occur, and bring hidden danger for the safety in production of mine.
The utility model content
The utility model provides a kind of measure and control device of coalcutter frequency converter for Problems Existing, realizes the safe operation of electrical haulage shearer frequency converter is controlled.
In order to achieve the above object, the utility model provides a kind of measure and control device of coalcutter frequency converter, described measure and control device comprises keyboard and display screen, and the output terminal of described keyboard is connected with the input end of being located at inner single-chip microcomputer, and described display screen is connected with single-chip microcomputer is interactive; Described single-chip microcomputer is connected with storer is interactive, and single-chip microcomputer is electrically connected to frequency converter by communication interface.
Be provided with the first photoelectrical coupler that undesired signal is isolated between described keyboard and single-chip microcomputer, be provided with the second photoelectrical coupler that undesired signal is isolated between communication interface and single-chip microcomputer.
Described measure and control device inside is provided with power module, and described power module is respectively display screen, communication interface provides working power.
Described measure and control device inside is provided with power module, and described power module is respectively the first photoelectrical coupler, the second photoelectrical coupler provides working power.
Power module 5V safety electric source module of the present utility model is respectively display screen, communication interface, the first photoelectrical coupler, the second photoelectrical coupler working power is provided.For effectively avoiding Interference from current, special first photoelectrical coupler that adopts is isolated the 5V power supply, and the 3.3V power supply of isolation output is for single-chip microcomputer, and output efficiency is 89%, has effectively removed the interference that Electric source coupling is introduced.Simultaneously, for fear of the interference to this measure and control device of the harmonic wave of frequency converter, communication interface adopts the RS-485 bus to carry out communication, the RS-485 bus adopts twisted-pair feeder to add the structure on shielding ground, it has improved the reliability of this measure and control device work with adopting the second photoelectric coupling circuit to isolate between single-chip microcomputer.
When needs carry out unit functional test or parameter adjustment to frequency converter, with functional test or parameter information inputs to single-chip microcomputer by keyboard, single-chip microcomputer is electrically connected to frequency converter by communication interface, namely realized frequency converter is carried out unit functional test or parameter adjustment, thereby the chamber panel of avoiding opening frequency converter is realized modification, the test of parameter to it, has brought guarantee for the safety in production of mine.Particularly at gaseous mine, avoided because of misoperation or the excessive living gas explosion that causes of moving.
Wherein display screen is mainly completed the human-machine interface configuration of frequency converter measure and control device, comprises that the demonstration of measure and control device real-time status parameter, frequency conversion parameter menu show and the demonstration of system configuration menu and the switching of system state.
So the measure and control device of this frequency converter is stable, reliable, the operation control of electrical haulage shearer frequency converter, Real-Time Monitoring and the modification of systematic parameter have effectively been realized, realized that simultaneously frequency converter specific model parameter one key recovers, had good practical value for safe operation and the maintenance of mine-used frequency-converter.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model circuit structure block diagram.
Embodiment
As shown in Figure 1, a kind of measure and control device of coalcutter frequency converter, described measure and control device comprises keyboard 1 and display screen 3, and the output terminal of described keyboard 1 is connected with the input end of being located at inner single-chip microcomputer 4 by the first photoelectrical coupler 21, and described display screen 3 is connected with single-chip microcomputer 4 is interactive; Described single-chip microcomputer 4 is connected with storer 5 is interactive, and single-chip microcomputer 4 is electrically connected to frequency converter 8 by communication interface 7.Be provided with the second photoelectrical coupler 22 that undesired signal is isolated between communication interface 7 and single-chip microcomputer 4.Described measure and control device inside is provided with power module 6, and described power module 6 is respectively display screen 3, communication interface 7, the first photoelectrical coupler 21 and the second photoelectrical coupler 22 working power is provided.
When needs carry out unit functional test or parameter adjustment to frequency converter, with functional test or parameter information inputs to single-chip microcomputer by keyboard, single-chip microcomputer is electrically connected to frequency converter by communication interface, namely realized frequency converter is carried out unit functional test or parameter adjustment, thereby the chamber panel of avoiding opening frequency converter is realized modification, the test of parameter to it, has brought guarantee for the safety in production of mine.Particularly at gaseous mine, avoided because of misoperation or the excessive living gas explosion that causes of moving.
Above-described embodiment is not limited only to protection domain of the present utility model, and all are 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 measure and control device of a coalcutter frequency converter, it is characterized in that: described measure and control device comprises keyboard and display screen, and the output terminal of described keyboard is connected with the input end of being located at inner single-chip microcomputer, and described display screen is connected with the single-chip microcomputer interactive mode; Described single-chip microcomputer is connected with storer is interactive, and single-chip microcomputer is electrically connected to frequency converter by communication interface.
2. the measure and control device of a kind of coalcutter frequency converter according to claim 1, it is characterized in that: be provided with the first photoelectrical coupler that undesired signal is isolated between described keyboard and single-chip microcomputer, be provided with the second photoelectrical coupler that undesired signal is isolated between communication interface and single-chip microcomputer.
3. the measure and control device of a kind of coalcutter frequency converter according to claim 1 is characterized in that: described measure and control device inside is provided with power module, and described power module is respectively display screen, communication interface provides working power.
4. the measure and control device of a kind of coalcutter frequency converter according to claim 2 is characterized in that: described measure and control device inside is provided with power module, and described power module is respectively the first photoelectrical coupler, the second photoelectrical coupler provides working power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320047845 CN203012415U (en) | 2013-01-22 | 2013-01-22 | Measurement and control device for frequency converter of coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320047845 CN203012415U (en) | 2013-01-22 | 2013-01-22 | Measurement and control device for frequency converter of coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203012415U true CN203012415U (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320047845 Expired - Fee Related CN203012415U (en) | 2013-01-22 | 2013-01-22 | Measurement and control device for frequency converter of coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203012415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117691751A (en) * | 2024-02-01 | 2024-03-12 | 太重煤机有限公司 | Automatic configuration device and method for parameters of frequency converter of coal mining machine |
-
2013
- 2013-01-22 CN CN 201320047845 patent/CN203012415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117691751A (en) * | 2024-02-01 | 2024-03-12 | 太重煤机有限公司 | Automatic configuration device and method for parameters of frequency converter of coal mining machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140122 |