CN210985925U - Remote control system for frequency converter of off-board coal mining machine - Google Patents
Remote control system for frequency converter of off-board coal mining machine Download PDFInfo
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- CN210985925U CN210985925U CN201922261957.2U CN201922261957U CN210985925U CN 210985925 U CN210985925 U CN 210985925U CN 201922261957 U CN201922261957 U CN 201922261957U CN 210985925 U CN210985925 U CN 210985925U
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Abstract
The utility model discloses an off-board coal-winning machine converter remote control system, including dual system carrier emission system, dual system carrier receiving system and preceding stage magnetic starter, dual system carrier emission system includes control center, dual system carrier emission module, control circuit I and isolator, dual system carrier emission module includes remote communication carrier emission unit and some point carrier emission unit; the dual-system carrier receiving system comprises a dual-system carrier receiving module, a control loop II and an ABB frequency converter, the dual-system carrier receiving module comprises a remote communication carrier receiving unit and a point-to-point carrier receiving unit, and carrier data of the dual-system carrier transmitting system and the dual-system carrier receiving system are transmitted through a power line of a power supply cable. The utility model discloses realize that the external frequency conversion operational data of machine can real-time synchronization transmission, ensure simultaneously again can not influence the normal operation of coal-winning machine because of communication system goes wrong.
Description
Technical Field
The utility model relates to a control field of coal-winning machine, concretely relates to machine off-board coal-winning machine converter remote control system.
Background
At present, there are two kinds of ways to solve the control of coal mining machine frequency converter: one mode is that a control center of an electric cabinet of a coal mining machine sends out control signals of left traction, right traction, acceleration and deceleration, the control signals are transmitted into an external frequency conversion box through an intermediate relay and a multi-core control core wire of a power cable to provide control signals for a frequency converter, the control mode is easily interfered by the induction of the power cable, and the multi-core control core wire of the power cable is easily broken to cause signal delay or interruption. The other mode is point-to-point single carrier transmission control, a coal mining machine control center sends out left traction, right traction, acceleration and deceleration control signals, the signals are transmitted to a carrier receiving module in an external frequency conversion box through a power line, a carrier output terminal is connected to a frequency conversion control terminal to realize the control of a frequency converter, the frequency conversion control mode is not interfered by power cable induction, but the real-time synchronous transmission of the external frequency conversion operation data of the machine can not be realized, and the requirement of mine intelligence can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art, provide an external coal-winning machine converter remote control system that can make the real-time synchronization transmission of external converter operational data.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides an off-board coal-winning machine converter remote control system, includes dual system carrier emission system, dual system carrier receiving system and preceding stage magnetic force starter, its characterized in that:
the dual-system carrier transmitting system is used for issuing an execution instruction, transmitting, receiving and processing data and comprises a control center, a dual-system carrier transmitting module, a control loop I and an isolating switch; the control center is used for issuing an execution instruction, receiving and processing data, and comprises a human-computer interface display and a control module, wherein the control module comprises a remote communication control module and a point-to-point control module; the dual-system carrier transmitting module is used for executing an execution instruction issued by the control center and comprises a remote communication carrier transmitting unit and a point-to-point carrier transmitting unit, and power transmission ends of the remote communication carrier transmitting unit and the point-to-point carrier transmitting unit are respectively composed of independent power circuits; the control loop I is used for switching a task instruction of the point-to-point carrier transmitting unit and comprises an intermediate relay; the input side remote communication interface of the dual-system carrier transmitting module is connected with the control center through an isolation module, the input side point-to-point interface of the dual-system carrier transmitting module is connected with the control center through the control loop I, the output side of the dual-system carrier transmitting module is connected to a wiring terminal on the input side of an isolation switch, and the control loop is connected with the isolation switch; the dual-system carrier transmitting system is arranged in a control cavity of the coal mining machine;
the dual-system carrier receiving system is used for receiving and explaining carrier signals sent by the dual-carrier transmitting system and comprises a dual-system carrier receiving module, a control loop II and an ABB frequency converter, wherein the dual-system carrier receiving module comprises a remote communication carrier receiving unit and a point-to-point carrier receiving unit; the control loop II is used for switching task instructions received by the point-to-point carrier receiving unit and comprises an intermediate relay; a remote communication carrier receiving unit interface at the output side of the dual-system carrier receiving module is connected with the ABB frequency converter, and a point-to-point carrier receiving unit interface at the output side of the dual-system carrier receiving module is connected with the ABB frequency converter through the control loop II; the dual-system carrier receiving system is arranged in an external frequency conversion box;
the prime magnetic starter is used for supplying power to the coal mining machine and the external load frequency conversion box, the prime magnetic starter is respectively connected with the coal mining machine and the external load frequency conversion box through power cables, and carrier data of the dual-system carrier transmitting system and the dual-system carrier receiving system are transmitted through power lines of the power cables.
Further, the distance between the foreline magnetic starter and the coal mining machine is 200m-300 m.
Furthermore, the remote control system of the frequency converter of the off-board coal mining machine is connected with the underground remote monitoring system through a two-wire system Ethernet transmission or an underground looped network.
The utility model discloses with two system carrier unit integrated with a module in, realized two system carrier control's switching use, make holistic machine external coal-winning machine converter control effect satisfy the required precision that each pulled the walking index, machine external frequency conversion operational data can real-time synchronization transmission moreover, ensure simultaneously again can not influence the coal-winning machine normal operating because of communication system goes wrong.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic block diagram of the dual-system carrier transmitter module terminal of the present invention.
Fig. 3 is a schematic block diagram of the dual-system carrier receiving module terminal of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-3, a remote control system for a frequency converter of an off-board coal mining machine comprises a dual-system carrier transmitting system, a dual-system carrier receiving system and a preceding-stage magnetic starter.
The dual-system carrier transmitting system comprises a control center, a dual-system carrier transmitting module, a control loop I and an isolating switch, wherein the control center comprises a human-computer interface display and a control module, and the control module comprises a remote communication control module and a point-to-point control module; the dual-system carrier transmitting module comprises a remote communication carrier transmitting unit and a point-to-point carrier transmitting unit, and the power transmission ends of the remote communication carrier transmitting unit and the point-to-point carrier transmitting unit are respectively composed of independent power circuits; the control loop I comprises an intermediate relay; the input side remote communication interface of the dual-system carrier transmission module is connected with the control center through an isolation module, the input side point-to-point interface of the dual-system carrier transmission module is connected with the control center through a control loop I, the output side of the dual-system carrier transmission module is connected to a wiring terminal on the input side of the isolation switch, and the control loop is connected with the isolation switch; the dual-system carrier transmitting system is arranged in a control cavity of the coal mining machine.
The dual-system carrier receiving system comprises a dual-system carrier receiving module, a control loop II and an ABB frequency converter, wherein the dual-system carrier receiving module comprises a remote communication carrier receiving unit and a point-to-point carrier receiving unit; the control loop II comprises an intermediate relay; the remote communication carrier receiving unit interface at the output side of the dual-system carrier receiving module is connected with the ABB frequency converter, and the point-to-point carrier receiving unit interface at the output side of the dual-system carrier receiving module is connected with the ABB frequency converter through a control loop II; the dual-system carrier receiving system is arranged in the external carrier frequency conversion box.
The foreline magnetic starter is respectively connected with the coal mining machine and the external-load frequency conversion box through a power supply cable, and carrier data of the dual-system carrier transmitting system and the dual-system carrier receiving system are transmitted through a power line of the power supply cable.
In this embodiment, the length of the power supply cable between the preceding stage magnetic starter and the coal mining machine is 300 meters.
In this embodiment, the remote control system of the frequency converter of the off-board coal mining machine is connected with the underground remote monitoring system through a two-wire ethernet transmission or an underground looped network, and is used for providing the operation data of the off-board frequency converter for the underground remote monitoring system.
In the process of using the utility model, a remote communication control module of a control center is started, communication signals such as bus communication data, left traction, right traction, acceleration, deceleration and the like are sent to a remote communication carrier transmitting unit interface of a dual-system carrier transmitting module, the carrier signal is transmitted out through a power line of a power supply cable, is transferred to an off-board frequency conversion box by a preceding stage magnetic starter and is then transmitted to a dual-system carrier receiving module through the power line of the power supply cable, the received carrier signal is decrypted by a remote communication carrier receiving unit of the dual-system carrier receiving module and is then transmitted to an ABB frequency converter, the ABB frequency converter starts to work according to a received signal instruction, and simultaneously, the remote communication carrier receiving unit of the dual-system carrier receiving module returns real-time operation data (including bus voltage, output current, IGBT temperature, input and output signal feedback, over-under-voltage protection and output torque data) of the ABB frequency converter to the control center through a primary circuit, and the real-time synchronous transmission of the external frequency conversion operation data is realized by displaying the data through a human-computer interface of the control center. And simultaneously, the utility model discloses with the real-time operation data integration processing back of the ABB converter of transmission, pass to the looped netowrk in the pit by two-wire system ethernet, provide operating data for remote monitering system in the pit.
If the utility model is out of order in the use process of the remote communication system, the remote communication control module button of the control center is popped up, the point-to-point control module of the control center is manually started, the control center sends out control signals of left pulling, right pulling, acceleration and deceleration, the control signals are transmitted to the point-to-point carrier transmitting unit interface of the double-carrier transmitting module through the control loop I, the point-to-point carrier transmitting unit of the double-carrier transmitting module modulates carrier signals, the carrier signals are transmitted out through the power line of the power supply cable and are switched to the double-system carrier receiving module by the pre-stage magnetic starter, the point-to-point carrier receiving unit of the double-system carrier receiving module decrypts the received carrier signals, and then the carrier signals are transmitted to the ABB frequency converter through the control loop II of the external carrier frequency conversion box, the ABB frequency converter works according to the received carrier signals, thereby ensuring that the coal, the working process is not influenced.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (2)
1. The utility model provides an off-board coal-winning machine converter remote control system, includes dual system carrier emission system, dual system carrier receiving system and preceding stage magnetic force starter, its characterized in that:
the dual-system carrier transmitting system is used for issuing an execution instruction, transmitting, receiving and processing data and comprises a control center, a dual-system carrier transmitting module, a control loop I and an isolating switch; the control center is used for issuing an execution instruction, receiving and processing data, and comprises a human-computer interface display and a control module, wherein the control module comprises a remote communication control module and a point-to-point control module; the dual-system carrier transmitting module is used for executing an execution instruction issued by the control center and comprises a remote communication carrier transmitting unit and a point-to-point carrier transmitting unit, and power transmission ends of the remote communication carrier transmitting unit and the point-to-point carrier transmitting unit are respectively composed of independent power circuits; the control loop I is used for switching a task instruction of the point-to-point carrier transmitting unit and comprises an intermediate relay; the input side remote communication interface of the dual-system carrier transmitting module is connected with the control center through an isolation module, the input side point-to-point interface of the dual-system carrier transmitting module is connected with the control center through the control loop I, the output side of the dual-system carrier transmitting module is connected to a wiring terminal on the input side of an isolation switch, and the control loop is connected with the isolation switch; the dual-system carrier transmitting system is arranged in a control cavity of the coal mining machine;
the dual-system carrier receiving system is used for receiving and explaining carrier signals sent by the dual-carrier transmitting system and comprises a dual-system carrier receiving module, a control loop II and an ABB frequency converter; the dual-system carrier receiving module comprises a remote communication carrier receiving unit and a point-to-point carrier receiving unit; the control loop II is used for switching task instructions received by the point-to-point carrier receiving unit and comprises an intermediate relay; a remote communication carrier receiving unit interface at the output side of the dual-system carrier receiving module is connected with the ABB frequency converter, and a point-to-point carrier receiving unit interface at the output side of the dual-system carrier receiving module is connected with the ABB frequency converter through the control loop II; the dual-system carrier receiving system is arranged in an external frequency conversion box;
the prime magnetic starter is used for supplying power to the coal mining machine and the external load frequency conversion box, the prime magnetic starter is respectively connected with the coal mining machine and the external load frequency conversion box through power cables, and carrier data of the dual-system carrier transmitting system and the dual-system carrier receiving system are transmitted through power lines of the power cables.
2. The off-board shearer frequency converter remote control system as set forth in claim 1, wherein: the remote control system of the frequency converter of the externally-mounted coal mining machine is connected with the underground remote monitoring system through a two-wire system Ethernet transmission or underground looped network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261957.2U CN210985925U (en) | 2019-12-17 | 2019-12-17 | Remote control system for frequency converter of off-board coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261957.2U CN210985925U (en) | 2019-12-17 | 2019-12-17 | Remote control system for frequency converter of off-board coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210985925U true CN210985925U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922261957.2U Active CN210985925U (en) | 2019-12-17 | 2019-12-17 | Remote control system for frequency converter of off-board coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210985925U (en) |
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2019
- 2019-12-17 CN CN201922261957.2U patent/CN210985925U/en active Active
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