CN103213820A - 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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- CN103213820A CN103213820A CN201310124582XA CN201310124582A CN103213820A CN 103213820 A CN103213820 A CN 103213820A CN 201310124582X A CN201310124582X A CN 201310124582XA CN 201310124582 A CN201310124582 A CN 201310124582A CN 103213820 A CN103213820 A CN 103213820A
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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 the bulk cargo transportation art, particularly in the control system of embedded scraper transporter, a kind of intelligent detecting method and equipment.
Background technology
Embedded scraper transporter is a kind of chain-linked conveyer tool equipment in the bulk cargo delivery system, compare with traditional open band conveyor, embedded scraper transporter then is in the osed top transfer passage, carries out the conveying of bulk cargo, has dustproof, waterproof, antipollution advantage.
Domestic and international existing embedded scraper transporter all is the constant-speed operation mode that adopts, and electric motor protecting is to reach a limit or rotating speed at current of electric to detect when finding that speed signal is zero, then cuts off motor power, thereby reaches the purpose of protection motor.
In the bulk cargo delivery system of reality, when tending to occur motor and also being less than the motor current limit value,, and cause the link plate distortion or the chain of conveying machinery to be broken because the material of bulk causes conveying machinery to be obstructed.
If employing speed detects, then before stall, just damage mechanical device, as chain and link plate even housing etc.
As seen, traditional balk cargo conveyor tool, the way commonly used that electric motor protecting and putty detect can not really effectively be discerned putty, and scraper plate distortion, chain are broken, housing breaks even problem such as burn-down of electric motor still exists.
Summary of the invention
The objective of the invention is, a kind of scraper plate bulk cargo load transfer device intelligent detecting method and equipment of burying easy to operate, with low cost is provided, can bury scraper plate bulk cargo load transfer device running state according to current of electric identification, thereby reach the purpose of protection load transfer device.
Purpose of the present invention is achieved through the following technical solutions: a kind of scraper plate bulk cargo load transfer device intelligent detecting method that buries may further comprise the steps:
A, mensuration are buried the stable operation current value of electric device under different revolution states of scraper plate bulk cargo load transfer device, and measuring the steady current value controller;
Monitor the electric device working current value in fact when b, usefulness current sensor, and working current value is transported to controller;
The stable electrical flow valuve that c, controller comparison electric device working current value and its revolution under certain revolution are answered, working current value is during less than the stable electrical flow valuve, controller starts frequency converter and adjusts the electric device deceleration, the concrete steps of adjusting are, reduce the revolution of electric device according to working current value before adjusting, working current value before making the stable electrical flow valuve imported in the cooresponding a step of adjusted electric machine revolution and adjusting equates, still less than cooresponding stable operation current value, represent then that burying scraper plate bulk cargo load transfer device breaks down as adjusted working current value; Working current value is during greater than the stable electrical flow valuve, controller then starts Frequency Converter Control electric device speedup, the concrete steps of adjusting are, increase the revolution of electric device according to working current value before adjusting, working current value before making the stable electrical flow valuve imported in the cooresponding a step of adjusted electric machine revolution and adjusting equates, still greater than cooresponding stable operation current value, represent then that burying scraper plate bulk cargo load transfer device putty occurs as adjusted working current value.
Further, be located at the described angular-motion transducer that buries inlet point in the scraper plate bulk cargo load transfer device, the time real monitoring described throat-fed quantitative change situation.
Further, when the working current value in the C step surpassed 10 seconds less than the stable electrical flow valuve, controller started frequency converter and adjusts the electric device deceleration.
Further, when the working current value in the step surpasses 10 seconds greater than the stable electrical flow valuve, controller then starts Frequency Converter Control electric device speedup, the concrete steps of adjusting are, increase the revolution of electric device according to working current value before adjusting, working current value before making the stable electrical flow valuve imported in the cooresponding a step of adjusted electric machine revolution and adjusting equates, as adjusted working current value or greater than cooresponding stable operation current value, and angular-motion transducer detects under the basic unmodified situation of throat-fed quantitative change, and then controller starts the deceleration of Frequency Converter Control electric device.
Method of inspection also comprises the d step; Also be provided with temperature sensor on d, the electric device, temperature sensor detects the electric device temperature data and determination data is transferred on the controller, and when fast rise appearred in temperature data, controller control warning device sent alert sound.
A kind of monitoring equipment that applies to bury scraper plate bulk cargo load transfer device intelligent detecting method, prison inspection equipment comprises being located at and buries frequency converter, current sensor, the temperature sensor on the electric device in the scraper plate bulk cargo load transfer device, discharging opening is provided with angular-motion transducer, described frequency converter, angular-motion transducer, current sensor, temperature sensor, warning device are connected with controller respectively, described controller received current sensor, temperature sensor data, described controller control frequency converter drives electric device and rotates.
Equipment also comprises the leakage current detect device, and the leakage current detect device is connected with controller.
The invention has the advantages that; the electric machine that buries scraper plate bulk cargo load transfer device is normal under certain rotating speed; during stable work; received current is a relatively stable current value; along with burying the life cycle of scraper plate bulk cargo load transfer device period of service near equipment; it is normal; under the stable mode of operation; relatively stable current value also can present growth; when stable electrical flow valuve during near the limit of the protection current of driving arrangement; the electric machine that buries scraper plate bulk cargo load transfer device is near last stage in life-span; need in time to change; balk cargo conveyor is in operational process; can be because of putty; or it is too fast to the balk cargo conveyor blanking velocity; cross that slow (different bulk cargos is because the density difference; blanking will cause blanking velocity too fast or slow excessively to balk cargo conveyor under same speed; and the working rate that influences electric machine is imitated); and cause the electric current of the electric machine of balk cargo conveyor to change; controller is by comparing working current and steady-working state electric current; start the frequency conversion of frequency converter drive motor means and change revolution; the concrete steps of adjusting are; adjust the revolution of electric device according to working current value before adjusting; working current value before making the stable electrical flow valuve imported in the cooresponding a step of adjusted electric machine revolution and adjusting equates; as adjusted working current value or less than cooresponding stable operation current value; then expression is buried scraper plate bulk cargo load transfer device and is buried the scraper plate fracture; need repairing; as adjusted working current value or greater than cooresponding stable operation current value; represent that then putty appears in load transfer device; can also be in conjunction with the angular-motion transducer that is installed in the load transfer device; judge behind the comprehensive analyses which type of mode of operation buries scraper plate bulk cargo load transfer device is in; and regulate the electric machine mode of operation bury scraper plate bulk cargo load transfer device by retarder and adapt to blanking velocity; or startup warning device; warning device sends warning, the prompting staff with to the running state of scraper plate bulk cargo load transfer device so that make judgement.
When the working current value in the c step surpasses 10 seconds less than the stable electrical flow valuve; controller starts the deceleration that frequency converter is adjusted electric machine; in burying scraper plate bulk cargo load transfer device operational process; can be because the individual size differences of bulk cargo causes the working current in the short time too small; 10 seconds deferred reactions are set, help protection and bury scraper plate bulk cargo load transfer device electric machine.
When working current value surpasses 10 seconds greater than the stable electrical flow valuve in the c step, controller then starts Frequency Converter Control electric device speedup, the concrete steps of adjusting are, increase the revolution of electric device according to working current value before adjusting, working current value before making the stable electrical flow valuve imported in the cooresponding a step of adjusted electric machine revolution and adjusting equates, as adjusted working current value or greater than cooresponding stable operation current value, control and angular-motion transducer detect material does not have increase, and then controller starts the deceleration of Frequency Converter Control electric machine.Because material does not increase, can judge that the electric current increase is not because material increases, and may be to run into bigger bulk cargo of volume or putty, by the protection load transfer device that slows down.
Will generate heat after when electric machine moves one section; in general not having can be with reference to property; but the electric machine temperature traverse is too fast in a certain period; cooperate the variation of current value; can judge whether to take place putty very accurately; concrete method is; when working current value greater than the stable electrical flow valuve; temperature sensor detects the electric machine temperature data and determination data is transferred on the controller; controller starts frequency converter and reduces the electric machine working speed; if the electric machine temperature continues to rise, controller control electric machine is shut down.
Principle of work 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 fluctuation occurs or when high or low in actual moving process, electric machine operation mal when then showing, this mal may be the fault of electric machine itself or the fault of electric machine institute actuating device, ventilating controller changes the electric machine revolution with frequency converter, monitor again adjust whether the back working current value is greater than or less than or etc. the stable electrical flow valuve, judge whether motor driver takes action normally, the variation of utilization monitoring current is monitored electric machine and whether is had fault, also be solvable another problem of the present invention, can different parameters be set according to different motors and get final product.
A kind of equipment that applies to bury scraper plate bulk cargo load transfer device intelligent detecting method, comprise being located at and bury frequency converter, current sensor, the temperature sensor on the electric machine in the scraper plate bulk cargo load transfer device, angular-motion transducer in the load transfer device housing, warning device are connected with controller respectively.Current sensor, temperature sensor is the working current value of electric machine, temperature value is passed to controller immediately, angular-motion transducer is passed to controller with the information of the operational throughput of material, controller is compared working current value and electric machine stable electrical flow valuve and operational throughput, when working current value during less than the stable electrical flow valuve, show underload or bury scraper plate or chain fracture, controller is controlled the mode of operation of electric machine by regulating frequency converter, when adjusted working current value equals the stable electrical flow valuve, expression is an electric device underload (blanking velocity is slow) before adjusting, can improve the electric device rotating speed by control setup again behind the speed governing blanking velocity, to improve the work efficiency of balk cargo conveyor, adjusted working current value is during less than the stable electrical flow valuve, expression is buried and is buried the fracture of scraper plate or chain in the scraper plate bulk cargo load transfer device, the dress of reporting to the police is alert, is keeped in repair by the maintainer; When working current value during greater than the stable electrical flow valuve; show and may putty take place or blanking velocity is too fast; controller starts frequency converter quickens the electric machine rotating speed; when adjusted working current value equals the stable electrical flow valuve; expression is an electric device overload (blanking velocity is fast) before adjusting; can reduce the electric device rotating speed by control setup again behind the speed governing blanking velocity; so that balk cargo conveyor is in good working order; as adjusted working current value or greater than the stable electrical flow valuve; information blanking amount in conjunction with angular-motion transducer does not increase, and the temperature of electric machine goes up not down simultaneously, then shows putty has taken place; warning device is reported to the police, and shuts down.
Check implement also comprises photoelectrical coupler, and described current sensor, temperature sensor, angular-motion transducer are connected with controller by photoelectrical coupler respectively, prevents that internal signal from disturbing.
Description of drawings
Be described further below in conjunction with drawings and Examples.
Fig. 1 is the inventive method logic fortune property figure.
Fig. 2 is the diagram of circuit of the inventive method.
Fig. 3 is the structural representation of present device.
The specific embodiment
In conjunction with Fig. 1, Fig. 2, a kind of scraper plate bulk cargo load transfer device intelligent detecting method that buries may further comprise the steps:
A, mensuration are buried the stable electrical flow valuve A of the stable operation under electric machine 1 different rotating speeds in the scraper plate bulk cargo load transfer device, and a mensuration stable electrical flow valuve A is transported to controller 2, when measuring the stable electrical flow valuve A of electric machine 1, the aviation value that need make the electric machine smooth operation measure three or four minutes current values after three or four minutes is stable electrical flow valuve A, and the temperature increase of this electric machine 1 therebetween is no more than percentage two;
B, usefulness current sensor 6 detect the working current value B of electric machine 1 in the described a step, and working current value B is transported to controller 2;
C, the stable electrical flow valuve A and the working current value B of controller 2 comparison electric machines 1 advance comparison, when working current value B surpasses 10 seconds less than stable electrical flow valuve A, controller 2 starts the deceleration that frequency converter 3 is adjusted electric machine 1, the concrete steps of adjusting are, reduce the revolution of electric device 1 according to working current value B before adjusting, working current value B before making the stable electrical flow valuve A that imports in the cooresponding a step of adjusted electric machine 1 revolution and adjusting equates, still less than cooresponding stable operation current value A, then expression is buried scraper plate bulk cargo load transfer device and is broken down or bury scraper plate as adjusted working current value B, the chain fracture; When working current value B surpasses 10 seconds greater than stable electrical flow valuve A; when angular-motion transducer 4 detects the material increase; controller 2 starts frequency converter 3 and adjusts electric machine 1 speedup; the concrete steps of adjusting are; increase the revolution of electric device 1 according to working current value B before adjusting; working current value B before making the stable electrical flow valuve A that imports in the cooresponding a step of adjusted electric machine 1 revolution and adjusting equates; as adjusted working current value B or greater than cooresponding stable operation current value A; represent that then burying scraper plate bulk cargo load transfer device putty occurs; when angular-motion transducer 4 detection inlet amounies do not have increase; controller 2 starts frequency converter 3 and adjusts electric machine 1 deceleration; bury scraper plate bulk cargo load transfer device with protection; controller 2 starts warning device 8; detecting as temperature sensor 7 rises in the operating temperature ten seconds of electric machine 1 surpasses 30 percent, stops electric device 1 work by system device 2.
Bury the maximum pull that scraper plate bulk cargo load transfer device middle scraper and chain are born by test; in conjunction with institute's necessary electromotor device 1 power and reductor speed ratio; electric machine 1 working current that backwards calculation goes out equipment when bearing maximum pull; and with this as conveyer protection current value; stable electrical flow valuve A and working current value B are all much smaller than conveyer protection current value.Bury scraper plate bulk cargo load transfer device intelligent detecting method and also can be used for measuring and bury scraper plate bulk cargo load transfer device speed running body state, when what measure, stable electrical flow valuve A is during near conveyer protection current value, then ageing equipment.
In conjunction with Fig. 1, Fig. 2, Fig. 3, bury the frequency converter 3 on the electric machine 1, current sensor 6, temperature sensor 7 in the scraper plate bulk cargo load transfer device, angular-motion transducer 4 is installed in discharging opening 5, frequency converter 3, current sensor 6, temperature sensor 7 are connected with controller 2 respectively, and angular-motion transducer 4, warning device 8 are respectively at controller 2 series connection.
Preferred embodiment is buried scraper plate bulk cargo load transfer device and is also comprised photoelectrical coupler, and angular-motion transducer 4, current sensor 6, temperature sensor 7 are connected with controller 2 by photoelectrical coupler respectively.
According to the stable electrical flow valuve A of test determination electric machine 1 under different rotating speeds; and input controller 2; after burying the operation of scraper plate bulk cargo load transfer device; real working current value B mensuration electric machine 1 is transferred to controller 2 during current sensor 6; 2 couples of working current value B of controller and stable electrical flow valuve A compare; all differ when being no more than 5 percent when two; controller 2 is not worked; when working current value B less than or when surpassing 5 percent greater than stable electrical flow valuve A; and after surpassing ten seconds kinds; controller 2 starts the mode of operation that frequency converter 3 is regulated electric machine 1, to judge or to protect and bury scraper plate bulk cargo load transfer device running condition.
Claims (7)
1. one kind is buried scraper plate bulk cargo load transfer device intelligent detecting method, and it is characterized in that: described method of inspection may further comprise the steps:
A, mensuration are buried the stable operation current value (A) of electric device (1) under different revolution states of scraper plate bulk cargo load transfer device, and measuring stable electrical flow valuve (A) controller (2);
Monitor electric device (1) working current value (B) when b, usefulness current sensor (6) in fact, 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 (B) and its revolution under certain revolution are answered, working current value (B) is during less than stable electrical flow valuve (A), controller (2) starts frequency converter (3) and adjusts electric device (1) deceleration, the concrete steps of adjusting are, reduce the revolution of electric device (1) according to working current value (B) before adjusting, working current value (B) before making the stable electrical flow valuve (A) imported in the cooresponding a step of adjusted electric machine (1) revolution and adjusting equates, still less than cooresponding stable operation current value (A), represent then that burying scraper plate bulk cargo load transfer device breaks down as adjusted working current value (B); Working current value (B) is during greater than stable electrical flow valuve (A), controller (2) then starts frequency converter (3) control electric device (1) speedup, the concrete steps of adjusting are, increase the revolution of electric device (1) according to working current value (B) before adjusting, working current value (B) before making the stable electrical flow valuve (A) imported in the cooresponding a step of adjusted electric machine (1) revolution and adjusting equates, still greater than cooresponding stable operation current value (A), represent then that burying scraper plate bulk cargo load transfer device putty occurs as adjusted working current value (B).
2. a kind of scraper plate bulk cargo load transfer device intelligent detecting method that buries according to claim 1, it is characterized in that: described method also comprises and is located at the angular-motion transducer (4) that buries scraper plate bulk cargo load transfer device inlet point (5), the time real monitoring described inlet point (5) inlet amount situation of change.
3. a kind of scraper plate bulk cargo load transfer device intelligent detecting method that buries according to claim 1, it is characterized in that: when the working current value (B) in the described C step surpassed 10 seconds less than stable electrical flow valuve (A), controller (2) started frequency converter (3) and adjusts electric device (1) deceleration.
4. a kind of scraper plate bulk cargo load transfer device intelligent detecting method that buries according to claim 2, it is characterized in that: when working current value (B) surpasses 10 seconds less than stable electrical flow valuve (A) in the described C step, controller (2) then starts frequency converter (3) control electric device (1) speedup, the concrete steps of adjusting are, increase the revolution of electric device (1) according to working current value (B) before adjusting, working current value (B) before making the stable electrical flow valuve (A) imported in the cooresponding a step of adjusted electric machine (1) revolution and adjusting equates, as adjusted working current value (B) or greater than cooresponding stable operation current value (A), and angular-motion transducer (4) detects under the basic unmodified situation of inlet point (5) charging quantitative change, and then controller (2) starts frequency converter (3) control electric device (1) deceleration.
5. a kind of scraper plate bulk cargo load transfer device intelligent detecting method that buries according to claim 4, it is characterized in that: method of inspection also comprises the d step; Also be provided with temperature sensor (7) on d, the electric device (1), temperature sensor (7) detects electric device (1) temperature data and determination data is transferred on the controller (2), increase by 30 percent in temperature data ten seconds, controller (2) control warning device (8) sends alert sound.
6. one kind applies to the monitoring equipment that one kind of claim 5 is buried scraper plate bulk cargo load transfer device intelligent detecting method, it is characterized in that: described prison inspection equipment comprises being located at and buries the frequency converter (3) on the electric device (1), current sensor (6), temperature sensor (7) in the scraper plate bulk cargo load transfer device, be installed on the angular-motion transducer (4) of inlet point (5), described controller (2) received current sensor (6), temperature sensor (7) data, described controller (2) control frequency converter (3) drives electric device (1) and rotates.
7. be used to bury the monitoring equipment of scraper plate bulk cargo load transfer device intelligent detecting method for one kind according to claim 6, it is characterized in that: described equipment also comprises the leakage current detect device, and the leakage current detect device is connected with controller (2).
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| Application Number | Priority Date | Filing Date | Title |
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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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| 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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| CN103213820B CN103213820B (en) | 2015-04-29 |
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Cited By (5)
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| CN103569625A (en) * | 2013-10-23 | 2014-02-12 | 山西煤矿机械制造有限责任公司 | Underground coal mine scraper conveyor and chain broken prevention control method |
| 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 |
| 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 |
| CN117142009A (en) * | 2023-10-30 | 2023-12-01 | 山西海诚智能制造有限公司 | Scraper conveyor health state assessment method based on graph rolling network |
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| CN103213820B (en) | 2015-04-29 |
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