CN103213820B - Intelligent detection method and equipment for bulk embedded scraper conveying equipment - Google Patents
Intelligent detection method and equipment for bulk embedded scraper conveying equipment Download PDFInfo
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- CN103213820B CN103213820B CN201310124582.XA CN201310124582A CN103213820B CN 103213820 B CN103213820 B CN 103213820B CN 201310124582 A CN201310124582 A CN 201310124582A CN 103213820 B CN103213820 B CN 103213820B
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Abstract
The invention discloses an intelligent detection method and equipment for bulk embedded scraper conveying equipment. The method comprises the following steps of measuring the working current value in the bulk embedded scraper conveying equipment when a motor device is in different rotating speed states; and comparing the working current value with a stable current value to measure the running state of the bulk embedded scraper conveying equipment. The equipment has the advantages of simple structure, convenience and practicability; and the running state of the entire bulk embedded scraper conveying equipment can be monitored only by monitoring the working current value of the motor device.
Description
Technical field
The present invention relates to Bulk material field, in the control system of particularly embedded scraper transporter, a kind of intelligent detecting method and equipment.
Background technology
Embedded scraper transporter is a kind of chain conveying machinery equipment in bulk conveying system, compare with traditional open belt conveyor, embedded scraper transporter is then in the transfer passage closed, and carries out the conveying of bulk cargo, has dust-proof, waterproof, antipollution advantage.
Domestic and international existing embedded scraper transporter is all the constant-speed operation mode adopted, and electric motor protecting is when current of electric reaches a limiting value or Rotating speed measring finds that rate signal is zero, then cut off motor power, thus reaches the object of protection motor.
In the bulk conveying system of reality, when often occurring that motor is also less than motor current limit value, because the material of bulk causes conveying machinery to be obstructed, and the distortion of the link plate of conveying machinery or chain is caused to be broken.
If employing velocity measuring, then before stall, just damage mechanical device, as chain and link plate even housing etc.
Visible, traditional bulk material conveying machinery, the conventional way that electric motor protecting and putty detect, really effectively can not identify putty, scraper plate distortion, chain are broken, casing rupture even the problem such as burn-down of electric motor still exist.
Summary of the invention
The object of the invention is, provide a kind of and easy to operate, with low cost bury scraper plate bulk material conveying equipment intelligent detecting method and equipment, scraper plate bulk material conveying equipment running status can be buried according to current of electric identification, thus reach the object of protection conveying equipment.
Object of the present invention is achieved through the following technical solutions: one is buried scraper plate bulk material conveying equipment intelligent detecting method and comprised the following steps:
A, mensuration bury the steady operation current value of electric device under different revolution state of scraper plate bulk material conveying equipment, and the stable electrical flow valuve measured is passed to controller;
The working current value of real monitoring electric device when b, use current sensor, and working current value is transported to controller;
C, the stable electrical flow valuve that the working current value of controller comparison electric device under certain revolution is corresponding with its revolution, when working current value is less than stable electrical flow valuve, controller starts frequency converter adjustment electric device and slows down, the concrete steps of adjustment are, the revolution of electric device is reduced according to working current value before adjustment, make the stable electrical flow valuve that inputs in a step corresponding to the electric machine revolution after adjustment equal with the working current value before adjustment, as the working current value after adjustment is still less than corresponding steady operation current value, then represent that burying scraper plate bulk material conveying equipment breaks down, when working current value is greater than stable electrical flow valuve, controller then starts Frequency Converter Control electric device speedup, the concrete steps of adjustment are, the revolution of electric device is increased according to working current value before adjustment, the stable electrical flow valuve inputted in a step making the revolution of the electric machine after adjustment corresponding is equal with the working current value before adjustment, as the working current value after adjustment is still greater than corresponding steady operation current value, then represent that burying scraper plate bulk material conveying equipment occurs putty.
Further, described in being located at, bury the angular displacement sensor of charging aperture in scraper plate bulk material conveying equipment, time real monitoring described throat-fed amount situation of change.
Further, when the working current value in step c was less than stable electrical flow valuve more than 10 seconds, controller starts frequency converter adjustment electric device and slows down.
Further, when working current value in step c was greater than stable electrical flow valuve more than 10 seconds, controller then starts Frequency Converter Control electric device speedup, the concrete steps of adjustment are, the revolution of electric device is increased according to working current value before adjustment, the stable electrical flow valuve inputted in a step making the revolution of the electric machine after adjustment corresponding is equal with the working current value before adjustment, as the working current value after adjustment is still greater than corresponding steady operation current value, and angular displacement sensor detect throat-fed amount substantially constant when, then controller starts the deceleration of Frequency Converter Control electric device.
Detection method also comprises Step d; D, electric device are also provided with temperature sensor, and temperature sensor detects electric device temperature data and determination data is transferred on controller, and when rising fast appears in temperature data, controller controls warning device and sends alert sound.
A kind ofly apply to the monitoring equipment burying scraper plate bulk material conveying equipment intelligent detecting method, prison inspection equipment comprises the frequency converter, current sensor, the temperature sensor that are located at and bury in scraper plate bulk material conveying equipment on electric device, charging aperture is provided with angular displacement sensor, described frequency converter, angular displacement sensor, current sensor, temperature sensor, warning device are connected with controller respectively, described controller received current sensor, temperature sensor data, described controller controls transducer drive electric device and rotates.
Monitoring equipment also comprises leakage monitoring device, and leakage monitoring device is connected with controller.
The invention has the advantages that, the electric machine burying scraper plate bulk material conveying equipment is normal under certain rotating speed, during stable work, input current is a relatively stable current value, along with burying the scraper plate bulk material conveying equipment service time of the life cycle close to equipment, it is normal, under stable duty, relatively stable current value also can present growth, when the limiting value of stable electrical flow valuve close to the protective current of driving arrangement, bury the electric machine of scraper plate bulk material conveying equipment close to last stage in life-span, need to change in time, balk cargo conveyor is in running, can because of putty, or it is too fast to balk cargo conveyor blanking velocity, cross that slow (different bulk cargos is because density is different, under same speed, blanking will cause blanking velocity too fast or excessively slow to balk cargo conveyor, and affect the work ratio effect of electric machine), and cause the electric current of the electric machine of balk cargo conveyor to change, controller is by comparing operating current and steady-working state electric current, start transducer drive electric machine frequency conversion change revolution, the concrete steps of adjustment are, according to the revolution of working current value adjustment electric device before adjustment, make the stable electrical flow valuve that inputs in a step corresponding to the electric machine revolution after adjustment equal with the working current value before adjustment, as the working current value after adjustment is still less than corresponding steady operation current value, then represent that burying scraper plate bulk material conveying equipment buries scraper plate fracture, need repairing, as the working current value after adjustment is still greater than corresponding steady operation current value, then represent that putty appears in conveying equipment, can also in conjunction with the angular displacement sensor be arranged in conveying equipment, judge after comprehensive analysis which type of duty buries scraper plate bulk material conveying equipment is in, and regulate the electric machine duty of burying scraper plate bulk material conveying equipment to adapt to blanking velocity by decelerator, or startup warning device, warning device sends warning, prompting staff with to the running status of scraper plate bulk material conveying equipment to judge.
When working current value in step c was less than stable electrical flow valuve more than 10 seconds; controller starts the deceleration of frequency converter adjustment electric machine; burying in scraper plate bulk material conveying equipment running; can because bulk cargo Individual Size difference causes the operating current in the short time too small; 10 seconds deferred reactions are set, are conducive to protection and bury scraper plate bulk material conveying equipment electric machine.
When in step c, working current value was greater than stable electrical flow valuve more than 10 seconds, controller then starts Frequency Converter Control electric device speedup, the concrete steps of adjustment are, the revolution of electric device is increased according to working current value before adjustment, make the stable electrical flow valuve that inputs in a step corresponding to the electric machine revolution after adjustment equal with the working current value before adjustment, as the working current value after adjustment is still greater than corresponding steady operation current value, control and angular displacement sensor detects material without increase, then controller starts Frequency Converter Control electric machine and slows down.Because material does not increase, can judge that electric current increase is not because material increases, and may be run into the larger bulk cargo of volume or putty, by the protection conveying equipment that slows down.
Will generate heat after when electric machine runs one section; in general the not property of can refer to; but electric machine variations in temperature is too fast within certain a period of time; coordinate the change of current value; can judge whether very accurately putty occurs; concrete method is; when working current value is greater than stable electrical flow valuve; temperature sensor detects electric machine temperature data and determination data is transferred on controller; controller starts frequency converter and reduces electric machine working speed; if electric machine temperature continues to rise, controller controls electric machine and shuts down.
Operation principle of the present invention is, electric machine is under the state of different rotating speeds, have a relatively-stationary current value, this fixed current value occur in actual moving process fluctuation or high or low time, then during table, electric machine runs abnormal, this abnormal may be the fault of electric machine itself or the fault of electric machine institute drive unit, ventilating controller frequency converter makes electric machine revolution change, monitor again adjustment after working current value whether be greater than or less than or etc. stable electrical flow valuve, judge whether motor driver takes action normally, use the change of monitoring current to monitor electric machine and whether there is fault, also be the present invention's another problem solvable, different parameters can be set according to different motors.
A kind ofly apply to the equipment burying scraper plate bulk material conveying equipment intelligent detecting method, comprise the frequency converter, current sensor, the temperature sensor that are located at and bury in scraper plate bulk material conveying equipment on electric machine, angular displacement sensor in conveying equipment housing, warning device is connected with controller respectively.Current sensor, temperature sensor is the working current value of electric machine, temperature value passes to controller immediately, the information of the conveying capacity of material is passed to controller by angular displacement sensor, controller compares working current value and electric machine stable electrical flow valuve and conveying capacity, when working current value is less than stable electrical flow valuve, show underload or bury scraper plate or chain breakage, the duty of controller by regulating frequency converter to control electric machine, when working current value after adjustment equals stable electrical flow valuve, expression is electric device underload (blanking velocity is slow) before adjustment, electric device rotating speed can be improved by control device again after speed governing blanking velocity, to improve the operating efficiency of balk cargo conveyor, when working current value after adjustment is less than stable electrical flow valuve, represent to bury and bury scraper plate or chain breakage in scraper plate bulk material conveying equipment, dress of reporting to the police is alert, keeped in repair by maintenance personal, when working current value is greater than stable electrical flow valuve, show putty to occur or blanking velocity is too fast, controller starts frequency converter makes electric machine rotating speed accelerate, when working current value after adjustment equals stable electrical flow valuve, expression is electric device overload (blanking velocity is fast) before adjustment, electric device rotating speed can be reduced by control device again after speed governing blanking velocity, good working order is in make balk cargo conveyor, as the working current value after adjustment is still greater than stable electrical flow valuve, information discharge quantity in conjunction with angular displacement sensor does not increase, the temperature of electric machine goes up not down simultaneously, then show to there occurs putty, warning device is reported to the police, shut down.
Checkout equipment also comprises photoelectrical coupler, and described current sensor, temperature sensor, angular displacement sensor are connected with controller respectively by photoelectrical coupler, prevents internal signal from disturbing.
Accompanying drawing explanation
Be described further below in conjunction with drawings and Examples.
Fig. 1 is the inventive method logic fortune property figure.
Fig. 2 is the flow chart of the inventive method.
Fig. 3 is the structural representation of present device.
Detailed description of the invention
Composition graphs 1, Fig. 2, one buries scraper plate bulk material conveying equipment intelligent detecting method, comprises the following steps:
A, mensuration bury the stable electrical flow valuve A of the steady operation in scraper plate bulk material conveying equipment under electric machine 1 different rotating speeds, and be transported to controller 2 measuring stable electrical flow valuve A, when measuring the stable electrical flow valuve A of electric machine 1, need the mean value making electric machine stable operation measure three or four minutes current values after three or four minutes to be stable electrical flow valuve A, the temperature of this electric machine 1 therebetween increases and is no more than percentage two;
B, detect the working current value B of electric machine 1 in described a step with current sensor 6, and working current value B is transported to controller 2;
C, stable electrical flow valuve A and the working current value B of controller 2 comparison electric machine 1 enter comparison, when working current value B was less than stable electrical flow valuve A more than 10 seconds, controller 2 starts the deceleration that frequency converter 3 adjusts electric machine 1, the concrete steps of adjustment are, the revolution of electric device 1 is reduced according to working current value B before adjustment, make the stable electrical flow valuve A inputted in a step corresponding to the electric machine after adjustment 1 revolution equal with the working current value B before adjustment, as the working current value B after adjustment is still less than corresponding steady operation current value A, then represent that burying scraper plate bulk material conveying equipment breaks down or bury scraper plate, chain breakage, when working current value B was greater than stable electrical flow valuve A more than 10 seconds, when angular displacement sensor 4 detects material increase, controller 2 starts frequency converter 3 and adjusts electric machine 1 speedup, the concrete steps of adjustment are, the revolution of electric device 1 is increased according to working current value B before adjustment, make the stable electrical flow valuve A inputted in a step corresponding to the electric machine after adjustment 1 revolution equal with the working current value B before adjustment, as the working current value B after adjustment is still greater than corresponding steady operation current value A, then represent that burying scraper plate bulk material conveying equipment occurs putty, when angular displacement sensor 4 detects inlet amount without increase, controller 2 starts frequency converter 3 and adjusts electric machine 1 and slow down, scraper plate bulk material conveying equipment is buried with protection, controller 2 starts warning device 8, as temperature sensor 7 detects that the operating temperature of electric machine 1 is increased beyond 30 percent in ten seconds, electric device 1 is stopped to work by device 2 processed.
The maximum pull that scraper plate bulk material conveying equipment middle scraper and chain bear is buried by test; in conjunction with institute's necessary electromotor device 1 power and reductor speed ratio; backwards calculation goes out electric machine 1 operating current when equipment bears maximum pull; and in this, as conveyer protective current value; stable electrical flow valuve A and working current value B, all much smaller than conveyer protective current value.Bury scraper plate bulk material conveying equipment intelligent detecting method also to may be used for mensuration and bury scraper plate bulk material conveying equipment speed running body state, when what measure, when stable electrical flow valuve A is close to conveyer protective current value, then ageing equipment.
Composition graphs 1, Fig. 2, Fig. 3, bury the frequency converter 3 in scraper plate bulk material conveying equipment on electric machine 1, current sensor 6, temperature sensor 7, angular displacement sensor 4 is arranged on charging aperture 5, frequency converter 3, current sensor 6, temperature sensor 7 are connected with controller 2 respectively, and angular displacement sensor 4, warning device 8 are connected respectively at controller 2.
Preferred embodiment, buries scraper plate bulk material conveying equipment and also comprises photoelectrical coupler, and angular displacement sensor 4, current sensor 6, temperature sensor 7 are connected with controller 2 respectively by photoelectrical coupler.
According to the stable electrical flow valuve A of test determination electric machine 1 under different rotating speeds, and input control device 2, after burying the operation of scraper plate bulk material conveying equipment, during current sensor 6, the real working current value B measuring electric machine 1 is transferred to controller 2, controller 2 couples of working current value B and stable electrical flow valuve A compare, when two all differ be no more than 5 percent time, controller 2 does not work, when working current value B is less than or greater than stable electrical flow valuve A more than 5 percent, and more than after ten seconds kinds, controller 2 starts the duty that frequency converter 3 regulates electric machine 1, scraper plate bulk material conveying equipment ruuning situation is buried to judge or to protect.
Claims (7)
1. bury a scraper plate bulk material conveying equipment intelligent detecting method, it is characterized in that: described detection method comprises the following steps:
A, mensuration bury the steady operation current value (A) of electric device (1) under different revolution state of scraper plate bulk material conveying equipment, and the stable electrical flow valuve (A) measured is transported to controller (2);
B, with working current value (B) of monitoring electric device (1) real time current sensor (6), and working current value (B) is transported to controller (2);
C, the stable electrical flow valuve (A) that controller (2) comparison electric device (1) working current value under certain revolution (B) is corresponding with its revolution, when working current value (B) is less than stable electrical flow valuve (A), controller (2) starts frequency converter (3) adjustment electric device (1) and slows down, the concrete steps of adjustment are, the revolution of electric device (1) is reduced according to working current value (B) before adjustment, make the stable electrical flow valuve (A) that inputs in a step corresponding to the electric machine after adjustment (1) revolution equal with the working current value (B) before adjustment, as the working current value (B) after adjustment is still less than corresponding steady operation current value (A), then represent that burying scraper plate bulk material conveying equipment breaks down, when working current value (B) is greater than stable electrical flow valuve (A), controller (2) then starts frequency converter (3) and controls electric device (1) speedup, the concrete steps of adjustment are, the revolution of electric device (1) is increased according to working current value (B) before adjustment, make the stable electrical flow valuve (A) that inputs in a step corresponding to the revolution of the electric machine after adjustment (1) equal with the working current value (B) before adjustment, as the working current value (B) after adjustment is still greater than corresponding steady operation current value (A), then represent that burying scraper plate bulk material conveying equipment occurs putty.
2. one according to claim 1 buries scraper plate bulk material conveying equipment intelligent detecting method, it is characterized in that: described method also comprises the angular displacement sensor (4) being located at and burying scraper plate bulk material conveying equipment charging aperture (5), time real monitoring described charging aperture (5) inlet amount situation of change.
3. one according to claim 1 buries scraper plate bulk material conveying equipment intelligent detecting method, it is characterized in that: when the working current value (B) in described step c was less than stable electrical flow valuve (A) more than 10 seconds, controller (2) starts frequency converter (3) adjustment electric device (1) and slows down.
4. one according to claim 1 buries scraper plate bulk material conveying equipment intelligent detecting method, it is characterized in that: when in described step c, working current value (B) was greater than stable electrical flow valuve (A) more than 10 seconds, controller (2) then starts frequency converter (3) and controls electric device (1) speedup, the concrete steps of adjustment are, the revolution of electric device (1) is increased according to working current value (B) before adjustment, make the stable electrical flow valuve (A) that inputs in a step corresponding to the revolution of the electric machine after adjustment (1) equal with the working current value (B) before adjustment, as the working current value (B) after adjustment is still greater than corresponding steady operation current value (A), and angular displacement sensor (4) detect charging aperture (5) inlet amount substantially constant when, then controller (2) starts frequency converter (3) control electric device (1) deceleration.
5. one according to claim 4 buries scraper plate bulk material conveying equipment intelligent detecting method, it is characterized in that: detection method also comprises Step d; D, electric device (1) are also provided with temperature sensor (7), temperature sensor (7) detects electric device (1) temperature data and determination data is transferred on controller (2), when increasing by 30 percent in temperature data ten seconds, controller (2) controls warning device (8) and sends alert sound.
6. one kind is used the monitoring equipment burying scraper plate bulk material conveying equipment intelligent detecting method of claim 5, it is characterized in that: monitoring equipment comprises the frequency converter (3), current sensor (6), the temperature sensor (7) that are located at and bury in scraper plate bulk material conveying equipment on electric device (1), be installed on the angular displacement sensor (4) of charging aperture (5), described controller (2) received current sensor (6), temperature sensor (7) data, described controller (2) controls frequency converter (3) and drives electric device (1) to rotate.
7. monitoring equipment according to claim 6, is characterized in that: described monitoring equipment also comprises leakage monitoring device, and leakage monitoring device is connected with controller (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310124582.XA CN103213820B (en) | 2013-04-11 | 2013-04-11 | Intelligent detection method and equipment for bulk embedded scraper conveying equipment |
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| CN201310124582.XA CN103213820B (en) | 2013-04-11 | 2013-04-11 | Intelligent detection method and equipment for bulk embedded scraper conveying equipment |
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| CN103213820A CN103213820A (en) | 2013-07-24 |
| CN103213820B true CN103213820B (en) | 2015-04-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104418039A (en) * | 2013-08-29 | 2015-03-18 | 宁夏鹏程致远自动化技术有限公司 | Belt wheel manual control device |
| CN103569625B (en) * | 2013-10-23 | 2017-06-16 | 山西煤矿机械制造股份有限公司 | A kind of underground coal mine scraper conveyor and a chain broken prevention control method |
| CN112269349A (en) * | 2020-10-12 | 2021-01-26 | 首钢京唐钢铁联合有限责任公司 | Method and system for detecting refined RH four-motor driven molten steel car |
| CN114259763A (en) * | 2021-12-09 | 2022-04-01 | 广州嘉康环保技术有限公司 | Control method of sedimentation tank mud scraper |
| CN117142009B (en) * | 2023-10-30 | 2024-03-15 | 西安重装蒲白煤矿机械有限公司 | Scraper conveyor health state assessment method based on graph rolling network |
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| CN202245194U (en) * | 2011-06-23 | 2012-05-30 | 宿州中矿三杰科技有限公司 | Comprehensive protecting and monitoring device for networked belt conveyor |
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| CN202594348U (en) * | 2012-01-10 | 2012-12-12 | 西门子工厂自动化工程有限公司 | Speed adjusting device for conveyor belt |
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|---|---|---|---|---|
| CN101077740A (en) * | 2007-06-26 | 2007-11-28 | 上海发电设备成套设计研究院 | Worm distributor operation control method |
| CN201670556U (en) * | 2010-04-27 | 2010-12-15 | 上海科大重工集团有限公司 | Automatic fault recognition system of large belt conveyer |
| CN201990224U (en) * | 2011-03-31 | 2011-09-28 | 湖北宜都机电工程股份有限公司 | Intelligence-control energy-saving buried scraper conveyor |
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