CN210776264U - Remote control system based on coal mine underground combination switch - Google Patents
Remote control system based on coal mine underground combination switch Download PDFInfo
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- CN210776264U CN210776264U CN201922062748.5U CN201922062748U CN210776264U CN 210776264 U CN210776264 U CN 210776264U CN 201922062748 U CN201922062748 U CN 201922062748U CN 210776264 U CN210776264 U CN 210776264U
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Abstract
The utility model relates to a remote control system based on colliery gang switch in pit, its technical characterstic is: the underground coal mine combined switch comprises a display and main controller, a keyboard, a remote communication module, two isolating switches, a plurality of vacuum contactors and a lighting unit, wherein the two isolating switches, the plurality of vacuum contactors and the lighting unit are installed in a control loop; the display and main controller is connected with the keyboard, the remote communication module, the two isolating switches, the plurality of vacuum contactors and the lighting unit, and the two isolating switches are respectively connected with the two incoming lines and realize free switching and effective protection functions of different incoming lines through a control loop; the remote communication module is connected with the ground control center to realize the remote control function. The utility model discloses link together colliery underground combination switch and ground control center and carry out remote data transmission, realized functions such as remote fault self diagnosis and remote control, can accurately discover equipment problem fast, improved the stability of system.
Description
Technical Field
The utility model belongs to the technical field of colliery is equipped with in the pit, especially a remote control system based on colliery is combination switch in the pit.
Background
At present, a coal mine underground combined switch is generally composed of an isolating switch, a vacuum contactor, an illumination comprehensive protection device, a display device, a key and the like. The underground combined switch of the coal mine is mainly used for the comprehensive mechanical coal face and used for power supply control and protection of equipment such as a coal mining machine, a scraper conveyor, a crusher, a reversed loader, an emulsion pump station, a belt conveyor and the like. The control mode of the underground coal mine combination switch is mainly short-distance manual operation control or simple remote switch control. The close-range manual operation control mode requires a working face worker to operate equipment nearby the equipment, great inconvenience is brought to production, the simple remote switch is single in control function, a control line is easy to interfere, equipment state information cannot be monitored, the running state and the fault state of the equipment cannot be known in time, and potential safety hazards are brought to safety production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide a reasonable in design, safe and reliable and control nimble remote control system based on colliery gang switch in pit.
The utility model provides a its technical problem take following technical scheme to realize:
a remote control system based on a coal mine underground combination switch is characterized in that: the underground coal mine combined switch comprises a display and main controller, a keyboard, a remote communication module, two isolating switches, a plurality of vacuum contactors and a lighting unit, wherein the two isolating switches, the plurality of vacuum contactors and the lighting unit are arranged in a control loop; the display and main controller is connected with the keyboard, the remote communication module, the two isolating switches, the plurality of vacuum contactors and the lighting unit, and the two isolating switches are respectively connected with the two incoming lines and realize free switching and effective protection functions of different incoming lines through a control loop; the remote communication module is connected with the ground control center to realize the remote control function.
The specific connection relationship of the control loop is as follows: the two paths of incoming wires are respectively connected with two control transformers, the output ends of the two control transformers are respectively connected with a control isolation transformer through a normally open contact and a normally closed contact of a relay KA1, the control isolation transformer is connected with the normally open contact and the normally closed contact of a relay KA2, a vacuum contactor power supply and a display and main controller through a filter, and the output ends of the normally open contact and the normally closed contact of the relay KA2 are respectively connected with two isolation switch power supplies; the output end of the control transformer is also connected with a power module, and the power module, a coil of the relay KA1, a coil of the relay KA3, a second isolating switch change-over switch and a coil of the relay KA2 are sequentially connected; meanwhile, the two incoming lines are respectively connected with two voltage transformers, and the output of the two voltage transformers is used for collecting the voltage of the vacuum contactor through a normally open contact and a normally closed contact of the relay KA 3.
The remote communication module is an Ethernet module, an optical fiber module, an RS485 module or a wireless communication module, and is connected with the ground control center through an Ethernet communication interface, an optical fiber interface, an RS485 communication interface or a wireless communication interface.
And the display and main controller is connected with the isolating switch, the vacuum contactor and the lighting unit through a CAN bus.
And all modules connected with the coal mine underground combination switch have a fault self-checking function.
The display and main controller is composed of a single chip microcomputer and a peripheral circuit connected with the single chip microcomputer.
The utility model has the advantages that:
1. the utility model discloses link together colliery underground combination switch and ground control center and carry out remote data transmission, realized functions such as remote fault self diagnosis and remote control, can accurately discover equipment problem fast, improved the stability of system.
2. The utility model discloses a colliery is combination switch in pit passes through isolator and moves side by side and realizes that self preservation protects and electric interlocking function, utilizes embedded control processing unit to equipment and power center's operation and fault state's real-time supervision and demonstration, can effectively transmit trouble self-diagnosis information for ground control center simultaneously to be favorable to ground control center to carry out stable, reliable control to combination switch.
3. The utility model relates to a rationally, realize reliable, safe, convenient control function to power center, promote the automatic, intelligent level of colliery underground combination switch remote control, avoided frequent dismantlement work when change over switch input, simplified combination switch's operation, reduced personnel's in the pit quantity, also improved work efficiency widely, but the wide application is in colliery underground uses electrical equipment's power supply control system.
Drawings
FIG. 1 is a schematic diagram of the system connection of the present invention;
FIG. 2 is a main circuit diagram of the coal mine underground combination switch;
FIG. 3 is a control circuit diagram of the coal mine underground combination switch.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
A remote control system based on a coal mine underground combination switch is shown in figure 1 and comprises the coal mine underground combination switch and a ground control center, wherein the coal mine underground combination switch can be connected with the ground control center through different types of communication interfaces to carry out real-time tandem communication according to the field environment, the coal mine underground combination switch can transmit running parameters of various devices to the ground control center, and on the other hand, the ground control center can send ground control center instructions to the coal mine underground combination switch to control the start and stop of the combination switch and monitor the state information of the devices and the remote monitoring function in real time.
The underground combination switch of the coal mine and the ground control center can be connected together through various communication interfaces to realize a communication function, and the operation control of starting and stopping, emergency stop locking, parameter setting, fault reporting and the like of the underground combination switch of the coal mine is realized. The following communication interfaces can be adopted between the underground coal mine combination switch and the ground control center:
(1) an ethernet communication interface and a fiber optic interface. The communication protocol is as follows: EtherNet/IP protocol; transmission medium: not less than the standard of the super five STP shielded twisted pair and single mode fiber; communication rate: 100Mbps and 1 Gbps; interface types are as follows: RJ45 and fiber optic interfaces.
(2) And an RS485 communication interface. The communication protocol is as follows: MODBUS RTU or MODBUS TCP standard communication protocol.
(3) A wireless communication interface: wifi and 4G are supported, and the communication protocol is as follows: a wireless communication system; working frequency band: 2.4 GHz; minimum rate: WiFi is not lower than 20 Mbps. When wireless communication is carried out, the underground combination switch of the coal mine and the ground control center realize the communication function through a wireless router.
The underground combined switch of the coal mine can realize the functions of fault self-diagnosis and data transmission with a ground control center. The coal mine underground combined switch comprises a display and main controller, a keyboard, a remote communication module, a plurality of isolating switches, a vacuum contactor and an illumination unit, wherein the isolating switches, the vacuum contactor and the illumination unit are installed in a control loop. The display and main controller is connected with the keyboard, the remote communication module, the isolating switch, the vacuum contactor and the illumination unit, wherein the display and main controller is connected with the isolating switch, the vacuum contactor and the illumination unit through a CAN bus, and the effective communication function among the modules is realized. The remote communication module is connected with the ground control center to realize the remote communication function. Each unit module in the combination switch has a fault self-checking function, the working states of each module and peripheral equipment are detected in real time, when a fault occurs, each unit module transmits fault information to the display and controller, and the display and main controller transmits the fault information of each driving unit, such as overload, short circuit, overvoltage, undervoltage, phase failure, leakage locking, leakage protection switch and the like, to the ground control center through the remote communication module, and the ground control center can carry out maintenance or remote control according to specific fault information, so that remote fault self-diagnosis processing is finally realized.
In this embodiment, the remote communication module may be an ethernet module, an optical fiber module, an RS485 module, or a wireless communication module.
In the embodiment, the display and main controller is realized by adopting a single chip microcomputer, and the built-in system is a WinCE system.
As shown in fig. 2 and fig. 3, the coal mine underground combination switch includes two incoming lines (both two incoming lines are 660/1140V), the two incoming lines are respectively connected to 2 isolating switches, the 2 isolating switches run in parallel and are connected with each vacuum contactor, the lighting unit and other isolating switches, the interlocking function of the two isolating switches is realized through an electric interlocking circuit, and the free switching and effective protection between different inputs can be realized. The specific connection relationship of the control loop is shown in fig. 3, and the 1-path incoming line and the 2-path incoming line are respectively connected to the control transformer 1 and the control transformer 2. The output ends of the control transformer 1 and the control transformer 2 are respectively connected with a control isolation transformer through a normally open contact KA1-1 and a normally closed contact KA1-2 of a relay KA1, the control isolation transformer is connected with a normally open contact KA2-1 and a normally closed contact KA2-2 of the relay KA2, a vacuum contactor power supply and a display and main controller through a filter, and the output ends of the normally open contact KA2-1 and the normally closed contact KA2-2 of the relay KA2 are respectively connected with a 1# isolation switch power supply and a 2# isolation switch power supply. The output of the control transformer 1 is connected with a power module, and the power module, the coil of the relay KA1, the coil of the relay KA3, the 2# isolating switch change-over switch and the coil of the relay KA2 are sequentially connected. Meanwhile, the 1-path incoming line and the 2-path incoming line are respectively connected to the voltage transformer 1 and the voltage transformer 2, and the output of the voltage transformer 1 and the output of the voltage transformer 2 are used for collecting the voltage of the vacuum contactor through a normally open contact KA3-1 and a normally closed contact KA3-2 of the relay KA 3.
The working principle of the coal mine underground combined switch control loop is as follows: the output of the two-way voltage transformer is controlled by a normally open contact KA3-1 and a normally closed contact KA3-2 of the relay KA3, when a 1-way incoming line is electrified, coils of the relay KA1 and the relay KA3 are electrified, the normally open contact KA1-1 of the corresponding relay KA1 is closed, and the normally closed contact KA1-2 is opened. When 1-path incoming line is electrified and 2-path isolation is stopped, a coil of the relay KA1 and a coil of the relay KA2 are electrified, a normally open contact KA1-1 of the relay KA1 is closed, a normally closed contact KA1-2 of the relay KA1 is opened, a normally open contact KA3-1 of the relay KA3 is closed, a normally closed contact KA3-2 of the relay KA3 is opened, a normally open contact KA2-1 of the relay KA2 is closed, a normally closed contact KA2-2 of the relay KA2 is opened, and the 1-path isolating switch supplies power to the system; when the 2-path incoming line is electrified, the 1-path isolating switch supplies power to the system, and the two isolating switches are interlocked.
The ground control center in the system can send a remote command signal to the underground coal mine combination switch, so that remote parameter setting, starting and stopping of remote control equipment, remote fault resetting, fault information and operation parameters of remote monitoring equipment operation and the like are realized. The start-stop control and data monitoring of the switch can be controlled by a remote controller; finally, the functions of remote communication, remote control and remote monitoring of the equipment are realized.
The utility model discloses the nothing is mentioned the part and is applicable to prior art.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention includes but is not limited to the embodiments described in the detailed description, as well as other embodiments derived from the technical solutions of the present invention by those skilled in the art, which also belong to the scope of the present invention.
Claims (6)
1. A remote control system based on a coal mine underground combination switch is characterized in that: the underground coal mine combined switch comprises a display and main controller, a keyboard, a remote communication module, two isolating switches, a plurality of vacuum contactors and a lighting unit, wherein the two isolating switches, the plurality of vacuum contactors and the lighting unit are arranged in a control loop; the display and main controller is connected with the keyboard, the remote communication module, the two isolating switches, the plurality of vacuum contactors and the lighting unit, and the two isolating switches are respectively connected with the two incoming lines and realize free switching and effective protection functions of different incoming lines through a control loop; the remote communication module is connected with the ground control center to realize the remote control function.
2. The remote control system based on the coal mine underground combination switch as claimed in claim 1, wherein: the specific connection relationship of the control loop is as follows: the two paths of incoming wires are respectively connected with two control transformers, the output ends of the two control transformers are respectively connected with a control isolation transformer through a normally open contact and a normally closed contact of a relay KA1, the control isolation transformer is connected with the normally open contact and the normally closed contact of a relay KA2, a vacuum contactor power supply and a display and main controller through a filter, and the output ends of the normally open contact and the normally closed contact of the relay KA2 are respectively connected with two isolation switch power supplies; the output end of the control transformer is also connected with a power module, and the power module, a coil of the relay KA1, a coil of the relay KA3, a second isolating switch change-over switch and a coil of the relay KA2 are sequentially connected; meanwhile, the two incoming lines are respectively connected with two voltage transformers, and the output of the two voltage transformers is used for collecting the voltage of the vacuum contactor through a normally open contact and a normally closed contact of the relay KA 3.
3. The remote control system based on the coal mine underground combination switch as claimed in claim 1 or 2, wherein: the remote communication module is an Ethernet module, an optical fiber module, an RS485 module or a wireless communication module, and is connected with the ground control center through an Ethernet communication interface, an optical fiber interface, an RS485 communication interface or a wireless communication interface.
4. The remote control system based on the coal mine underground combination switch as claimed in claim 1 or 2, wherein: and the display and main controller is connected with the isolating switch, the vacuum contactor and the lighting unit through a CAN bus.
5. The remote control system based on the coal mine underground combination switch as claimed in claim 1 or 2, wherein: and all modules connected with the coal mine underground combination switch have a fault self-checking function.
6. The remote control system based on the coal mine underground combination switch as claimed in claim 1 or 2, wherein: the display and main controller is composed of a single chip microcomputer and a peripheral circuit connected with the single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062748.5U CN210776264U (en) | 2019-11-26 | 2019-11-26 | Remote control system based on coal mine underground combination switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062748.5U CN210776264U (en) | 2019-11-26 | 2019-11-26 | Remote control system based on coal mine underground combination switch |
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| Publication Number | Publication Date |
|---|---|
| CN210776264U true CN210776264U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922062748.5U Active CN210776264U (en) | 2019-11-26 | 2019-11-26 | Remote control system based on coal mine underground combination switch |
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|---|---|
| CN (1) | CN210776264U (en) |
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2019
- 2019-11-26 CN CN201922062748.5U patent/CN210776264U/en active Active
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