CN102536234A - Electric control system of thin-seam electric traction coal mining machine - Google Patents
Electric control system of thin-seam electric traction coal mining machine Download PDFInfo
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- CN102536234A CN102536234A CN2010106188336A CN201010618833A CN102536234A CN 102536234 A CN102536234 A CN 102536234A CN 2010106188336 A CN2010106188336 A CN 2010106188336A CN 201010618833 A CN201010618833 A CN 201010618833A CN 102536234 A CN102536234 A CN 102536234A
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Abstract
The invention provides an electric control system of a thin-seam electric traction coal mining machine, relating to the field of engineering machinery. The electric control system comprises a temperature sensor, a current sensor, operation buttons, a relay, a controller, a display operation device and the like. The electric control system can be used for completing various control to the coal mining machine; a human-machine interface supplies a conversion environment to an operator with the coal mining machine; and the current working state and the current working parameters of the coal mining machine can be learned through the human-machine interface, the states of various working points are monitored in real time, and simultaneously, the operator the operator can also set the control parameters of the coal mining machine through the human-machine interface. By utilization of the electric control system, the automation level of the coal mining machine can be increased, the working efficiency is high, and stronger reliability is equipped. Meanwhile, energy saving, consumption reduction and environment pollution reduction can be realized by using electric power.
Description
Technical field
The present invention relates to engineering machinery field, specifically is a kind of girdle electrical haulage shearer electrical control system.
Background technology
Coal-winning machine divides four kinds of sawing formula, planing pattern, drilling formula and milling formulas; Be with the broken coal of rotary work mechanism; And with the coal-cutting machinery of its pack into conveyer or other haulage devices, be that mechanical, the electric and hydraulic pressure of collection is the large-scale complicated system of one, work under bad environment.If fault will cause the interruption of whole coal work, cause enormous economic loss.Along with the development of coal industry, the function of coal-winning machine is more and more, the structure of himself, composition more sophisticated, thereby the reason that breaks down is also complicated thereupon.
China's girdle (thickness is lower than 1.3 meters) reserves account for 20% of gross reserves.Because receiving the restriction in work plane space, girdle is the weak link of Jing Gongkuangjing exploitation always, the ability of equipment, installation, maintenance, operation etc. all receive very big restriction; And labour intensity is big; Coal seam production capacity is low, and unit yield is low, and the tunnel consumption rate is high, take over anxiety.Therefore most mines abandon thin seam mining, and resources loss is serious.
Girdle electrical haulage shearer electrical control system is the important subsystem of coal-winning machine, and capital equipment has controller, display, current transformer, temperature pick up, frequency converter etc.This system is responsible for accomplishing the operation, fault diagnosis of complete machine and takes safeguard measure according to diagnostic result, so the technical performance of this system directly influences the operation and the security performance of coal-winning machine, we can say that this system is the indispensable subsystem of coal-winning machine.
Existing girdle electrical haulage shearer electrical control system all can not meet the requirement of real work operation fully.
Summary of the invention
In order to solve the problems referred to above that exist in the prior art; The present invention provides a kind of girdle electrical haulage shearer electrical control system; Through adopting good electrical control system to realize the needed various functions of girdle electrical haulage shearer; And can monitor each parts running status in real time, be convenient to control.
For this reason, the present invention adopts following technical scheme: girdle electrical haulage shearer electrical control system is characterized in that it comprises:
Be located at the temperature pick up at each motor place of coal-winning machine, detect the temperature parameter that reads each motor;
Be located at the current sensor on each circuitry phase of each motor of coal-winning machine, read the numerical value of each each phase current of motor;
Be positioned at the action button on the coal-winning machine;
Relay, control each motor of coal-winning machine and action actuating mechanism;
With the controller that aforesaid operations button, temperature pick up, current sensor and relay link to each other, the signal that processes sensor is gathered and the duty of control relay;
The display operating device that links to each other with controller shows that the duty of coal-winning machine also can be ordered the controller input operation.
As to the improving and replenishing of technique scheme, the present invention further takes the following technical measures or the combination in any of these measures:
Described controller links to each other through CAN bus, bus conversion module and RS232 serial bus with display operating device.
Described display operating device comprises display and command input device.
In each motor of described coal-winning machine, cutting motor is connected with its start and stop of flame proof button control control.
Described controller comprises multistage Temperature Treatment module.
Described controller comprises the open-phase protection module.
Described controller comprises the startup module of staggering the time of controlling each motor start-up.
Described controller comprises permanent power automatic control module, and load current signal when working according to cutting motor is controlled the bearing power of cutting motor through regulating shearer haulage speed.
Described controller is connected with extending controller through the CAN bus, and this extending controller also is connected with corresponding action button, temperature pick up, current sensor and relay.
Described controller is connected with host computer through CAN bus, bus conversion module and RS232 serial bus.
Beneficial effect: the present invention has accomplished that each phase current of motor (cutting motor, traction electric machine, Oil pump electrical machinery) reads, each motor (cutting motor, traction electric machine, Oil pump electrical machinery) operating temperature reads, hauling speed is controlled, the permanent power control of cutting motor, overload are instead led control, start buffering, stop that buffering is controlled, operation condition shows in real time; Man-machine interface provides the dialogue environment of operator and coal-winning machine; Can understand the work at present state understanding work at present state and the running parameter of coal-winning machine through man-machine interface, monitor the state of each operating point in real time, the operator also can be provided with the coal-winning machine controlling parameter through man-machine interface simultaneously.Use the present invention, can improve the coal-winning machine automatization level, operating efficiency is higher, possesses stronger reliability.Simultaneously, electrification can be saved energy and reduce the cost, and reduces environment pollution.
Description of drawings
Fig. 1 is a system architecture principle schematic of the present invention.
The specific embodiment
Girdle electrical haulage shearer electrical control system as shown in Figure 1, core component is a controller, can comprise master controller and extending controller, links to each other through the CAN bus.Each controller also is connected with corresponding action button, temperature pick up, current sensor and control relay.
Controller is connected local display operating device and long-range host computer through CAN bus, bus conversion module respectively with the RS232 serial bus.
Native system uses the start and stop of flame proof button control cutting motor, starts the peak point current of the stack when greatly reducing each electric motor starting through staggering the time automatically, when prolonging electrical machinery life, has also protected electrical network.
Native system is monitored the temperature rise of each motor through each motor temperature sensor in real time, and sets multistage Temperature Treatment pattern, takes the different protection measure according to different temperature, guarantees the continous-stable work of equipment.
Native system carries out reading of each phase current through each current of electric mutual inductor, through relatively judging whether phase shortage, and carries out corresponding protection.Calculate the power of each motor simultaneously and keep the power invariability of each motor.
The native system controller uses CAN bus and display to carry out data communication, and the CAN bus is a kind of advanced person's a bus communication technology, has characteristics such as communication speed is fast, communication distance is long, communication security is reliable, on engineering truck, extensively is used.Controller is passed to display operating device through the CAN bus with service data and is shown, display operating device is passed to controller with the parameter value of revising and stored.When bus data transmission is broken down, on display with the show bus fault-signal.
Display shows each motor current temperature value, current value and performance number and current working state and alert status in real time.Duty that can each mouthful of monitor controller is carried out the modification of parameter, checks control system failure situation.
Parameter modification can be revised controller parameter behind the correct password of input on the display.The parameter of can recovery controller dispatching from the factory.
The controller of native system and local display device all are installed in the electric control box; Controller adopts the integral type PLC of waterproof, protection against the tide, dustproof, against shock; Link to each other with the outside through plugging joint; Can plug joint and have waterproof, protection against the tide, function such as dustproof equally, electric-control system has strong anti-interference ability, anti-vibration ability, possesses low temperature resistant simultaneously and high-temperature stability, is fit to very much the adverse circumstances of down-hole.
Narrate a few thing flow process of native system below:
1) processing of cutting motor operating current: the monitoring to the cutting motor operating current is to realize through the current transformer on each cutting motor power line; Current transformer is the 4-20mA current signal of the linear standard that converts to of the operating current signal that flows through power line; Controller can obtain this current value at county level indirectly through detecting its output current value; Concerning cutting motor, mainly contain overcurrent protection and overload protection.
A) overcurrent protection: when cutting motor electric current during greater than rated value 150%, main controller stops contact with urgency immediately to be opened, and coal-winning machine quits work immediately.
B) permanent power is controlled automatically: coal-winning machine is when operate as normal; The load variations of its cutting motor is very violent; Make the safe and reliable work of coal mining function and give full play to its usefulness through permanent power automaton is installed; Load information was controlled the bearing power of cutting motor as signal through regulating shearer haulage speed when so-called permanent power control was worked cutting motor exactly, and it is worked in allowed limits.
That is to say that ac three-phase asynchronous motor is near rated power; So power of motor and current of electric have approximate linear. when current transformer is worked near cutting motor rated power; The reflection that its output voltage is approximate the real output of cutting motor. in real work, coal-winning machine is with given hauling speed operation, and controller is monitored the output voltage of left and right cutting motor current transformer in real time. when an actual power in two cutting motors greater than rated power 10% the time; Controller sends the reduction of speed instruction to the frequency converter timing system; The coal-winning machine reduction of speed promptly through reducing the hauling speed of coal-winning machine, reduces the purpose that the coal amount realizes reducing the cutting motor bearing power of cutting of cylinder till the overload blackout. if hauling speed reduces to zero; The overload signal is not also eliminated; Then main controller will cut off the power supply of all motors, stop coal-winning machine work, show failure cause simultaneously.
If two cutting motor bearing powers all are lower than 80% of rated value, and this moment, shearer haulage speed did not also reach set-point, and controller will make the hauling speed of coal-winning machine rise to set-point automatically.
2) processing of traction electric machine operating current: the power supply of traction electric machine is supplied with by AC converter; AC converter is all to have perfect defencive function to itself or to its load motor, but because two traction electric machines are to be directly parallel on the inverter output terminal, if the single-wheel traction occurs; When unsettled phenomenon occurring as one in two traction wheels; Certainly will cause that heavy motor of load seriously to overload, we have respectively added a current transformer on the power line of two traction electric machines for this reason, and the operating mode of traction electric machine is monitored in real time; As long as an operating current 155% o'clock greater than rated value is arranged in two traction electric machines; Main controller suddenly stops contact with it immediately to be opened, and stops any work of coal-winning machine, operates display station simultaneously and shows that motor overload.
Should be pointed out that present embodiment just lists expressivity principle of the present invention and effect are described, but not be used to limit the present invention.Any personnel that are familiar with this technology all can make amendment to the foregoing description under spirit of the present invention and scope.Therefore, rights protection scope of the present invention should be listed like claims.
Claims (10)
1. girdle electrical haulage shearer electrical control system is characterized in that it comprises:
Be located at the temperature pick up at each motor place of coal-winning machine, detect the temperature parameter that reads each motor;
Be located at the current sensor on each circuitry phase of each motor of coal-winning machine, read the numerical value of each each phase current of motor;
Be positioned at the action button on the coal-winning machine;
Relay, control each motor of coal-winning machine and action actuating mechanism;
With the controller that aforesaid operations button, temperature pick up, current sensor and relay link to each other, the signal that processes sensor is gathered and the duty of control relay;
The display operating device that links to each other with controller shows that the duty of coal-winning machine also can be ordered the controller input operation.
2. girdle electrical haulage shearer electrical control system according to claim 1 is characterized in that: described controller links to each other through CAN bus, bus conversion module and RS232 serial bus with display operating device.
3. girdle electrical haulage shearer electrical control system according to claim 2, it is characterized in that: described display operating device comprises display and command input device.
4. according to claim 1 a described girdle electrical haulage shearer electrical control system, it is characterized in that: in each motor of described coal-winning machine, cutting motor is connected with its start and stop of flame proof button control control.
5. girdle electrical haulage shearer electrical control system according to claim 1 is characterized in that: described controller comprises multistage Temperature Treatment module.
6. girdle electrical haulage shearer electrical control system according to claim 1, it is characterized in that: described controller comprises the open-phase protection module.
7. girdle electrical haulage shearer electrical control system according to claim 1 is characterized in that: described controller comprises the startup module of staggering the time of controlling each motor start-up.
8. girdle electrical haulage shearer electrical control system according to claim 1; It is characterized in that: described controller comprises permanent power automatic control module; Load current signal when working according to cutting motor is controlled the bearing power of cutting motor through regulating shearer haulage speed.
9. according to each described girdle electrical haulage shearer electrical control system of claim 1-8; It is characterized in that: described controller is connected with extending controller through the CAN bus, and this extending controller also is connected with corresponding action button, temperature pick up, current sensor and relay.
10. girdle electrical haulage shearer electrical control system according to claim 9 is characterized in that: described controller is connected with host computer through CAN bus, bus conversion module and RS232 serial bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010618833.6A CN102536234B (en) | 2010-12-31 | 2010-12-31 | Electric control system of thin-seam electric traction coal mining machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010618833.6A CN102536234B (en) | 2010-12-31 | 2010-12-31 | Electric control system of thin-seam electric traction coal mining machine |
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| CN102536234A true CN102536234A (en) | 2012-07-04 |
| CN102536234B CN102536234B (en) | 2015-05-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533856A (en) * | 2014-11-13 | 2015-04-22 | 中国矿业大学 | Hydraulic control system of full-hydraulic drill type coal miner |
| CN107479475A (en) * | 2017-09-26 | 2017-12-15 | 天地科技股份有限公司上海分公司 | A kind of coal-winning machine manipulation and analysis exchange method |
| CN109635879A (en) * | 2019-01-08 | 2019-04-16 | 浙江大学 | A kind of Malfunction Diagnosis for Coal-Mining Machine system that parameter is optimal |
| CN109839917A (en) * | 2019-01-08 | 2019-06-04 | 浙江大学 | A kind of Malfunction Diagnosis for Coal-Mining Machine system of adaptively correcting |
| CN115949405A (en) * | 2023-03-14 | 2023-04-11 | 三一重型装备有限公司 | Coal mining machine control method and system, coal mining machine, electronic equipment and computer medium |
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| US4323280A (en) * | 1976-11-30 | 1982-04-06 | Coalex, Inc. | Remote controlled high wall coal mining system |
| DE4416643A1 (en) * | 1994-05-11 | 1995-11-16 | Bochumer Eisen Heintzmann | Coal-extracting machinery control system |
| CN1567696A (en) * | 2003-06-17 | 2005-01-19 | 刘建功 | Electromagnetic speed-regulating electrical haulage coal cutter |
| CN101441464A (en) * | 2007-11-23 | 2009-05-27 | 天地上海采掘装备科技有限公司 | Mining excavation equipment control system |
| CN201534735U (en) * | 2009-10-29 | 2010-07-28 | 程栓柱 | Full digital frequency conversion electric control system control console of mine lifter |
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2010
- 2010-12-31 CN CN201010618833.6A patent/CN102536234B/en not_active Expired - Fee Related
Patent Citations (5)
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| US4323280A (en) * | 1976-11-30 | 1982-04-06 | Coalex, Inc. | Remote controlled high wall coal mining system |
| DE4416643A1 (en) * | 1994-05-11 | 1995-11-16 | Bochumer Eisen Heintzmann | Coal-extracting machinery control system |
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Non-Patent Citations (1)
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| 吴振毅: "《极薄煤层电牵引采煤机电气控制系统的研究与实现》", 《复旦大学硕士学位论文》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533856A (en) * | 2014-11-13 | 2015-04-22 | 中国矿业大学 | Hydraulic control system of full-hydraulic drill type coal miner |
| CN104533856B (en) * | 2014-11-13 | 2016-05-11 | 中国矿业大学 | Full-hydraulic drill type coal mining machine hydraulic control system |
| CN107479475A (en) * | 2017-09-26 | 2017-12-15 | 天地科技股份有限公司上海分公司 | A kind of coal-winning machine manipulation and analysis exchange method |
| CN109635879A (en) * | 2019-01-08 | 2019-04-16 | 浙江大学 | A kind of Malfunction Diagnosis for Coal-Mining Machine system that parameter is optimal |
| CN109839917A (en) * | 2019-01-08 | 2019-06-04 | 浙江大学 | A kind of Malfunction Diagnosis for Coal-Mining Machine system of adaptively correcting |
| CN109839917B (en) * | 2019-01-08 | 2020-10-20 | 浙江大学 | Self-adaptive correction coal mining machine fault diagnosis system |
| CN109635879B (en) * | 2019-01-08 | 2023-04-07 | 浙江大学 | Coal mining machine fault diagnosis system with optimal parameters |
| CN115949405A (en) * | 2023-03-14 | 2023-04-11 | 三一重型装备有限公司 | Coal mining machine control method and system, coal mining machine, electronic equipment and computer medium |
| CN115949405B (en) * | 2023-03-14 | 2023-06-02 | 三一重型装备有限公司 | Coal mining machine control method, system, coal mining machine, electronic equipment and computer medium |
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| CN102536234B (en) | 2015-05-13 |
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Address after: 200433 room 323, No. 702-60, National Road, Shanghai, Yangpu District Applicant after: Fin control (Shanghai) Limited by Share Ltd Address before: 200090 101D, 2767 Pingliang Road, Shanghai, Yangpu District, China Applicant before: Shanghai Pal-Fin Auto Control Technology Co., Ltd. |
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