CN103092116A - Measuring and control device of coal cutter frequency converter - Google Patents
Measuring and control device of coal cutter frequency converter Download PDFInfo
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- CN103092116A CN103092116A CN 201310034663 CN201310034663A CN103092116A CN 103092116 A CN103092116 A CN 103092116A CN 201310034663 CN201310034663 CN 201310034663 CN 201310034663 A CN201310034663 A CN 201310034663A CN 103092116 A CN103092116 A CN 103092116A
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Abstract
The invention provides a measuring and control device of a coal cutter frequency converter. The measuring and control device of the coal cutter frequency converter comprises a keyboard and a display screen, wherein the output end of the keyboard is connected with the input end of a singlechip, the singlechip is arranged in the keyboard, the display screen is connected with the singlechip in an interactive mode, the singlechip is connected with a memorizer in an interactive mode, and the single chip is electrically connected with the frequency converter through a communication interface. The measuring and control device of the coal cutter frequency converter is stable and reliable in running, operating control of an electric traction coal cutter frequency converter and real-time monitoring and altering of system parameters are effectively achieved, at the same time onekey recovery of frequency converter specific model parameter is achieved, and therefore the measuring and control device of the coal cutter frequency converter has excellent practical value to safe operation and maintenance of a frequency converter for mining.
Description
Technical field
The present invention relates to coal mining plant equipment field, be 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.
Summary of the invention
The present invention is directed to Problems Existing, a kind of measure and control device of coalcutter frequency converter is provided, realize the safe operation of electrical haulage shearer frequency converter is controlled.
In order to achieve the above object, the invention 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 invention 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 present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is circuit structure block diagram of the present invention.
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 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 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 201310034663 CN103092116A (en) | 2013-01-22 | 2013-01-22 | Measuring and control device of coal cutter frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310034663 CN103092116A (en) | 2013-01-22 | 2013-01-22 | Measuring and control device of coal cutter frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103092116A true CN103092116A (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310034663 Pending CN103092116A (en) | 2013-01-22 | 2013-01-22 | Measuring and control device of coal cutter frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103092116A (en) |
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2013
- 2013-01-22 CN CN 201310034663 patent/CN103092116A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |