CN104555343A - Adaptive intelligent scraper conveyer used for coal mine underground mining face - Google Patents
Adaptive intelligent scraper conveyer used for coal mine underground mining face Download PDFInfo
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- CN104555343A CN104555343A CN201410519721.3A CN201410519721A CN104555343A CN 104555343 A CN104555343 A CN 104555343A CN 201410519721 A CN201410519721 A CN 201410519721A CN 104555343 A CN104555343 A CN 104555343A
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- slat conveyer
- chain
- tail
- control box
- coalcutter
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/06—Control devices, e.g. for safety, warning or fault-correcting interrupting the drive in case of driving element breakage; Braking or stopping loose load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2812/00—Indexing codes relating to the kind or type of conveyors
- B65G2812/02—Belt or chain conveyors
- B65G2812/02267—Conveyors having endless traction elements
- B65G2812/02861—Conveyors having endless traction elements moving the materials over supporting surfaces by impeller means, e.g. scrapers
- B65G2812/02871—Conveyors having endless traction elements moving the materials over supporting surfaces by impeller means, e.g. scrapers for bulk material
- B65G2812/02881—Scraper conveyors
Abstract
The invention relates to an adaptive intelligent scraper conveyer used for a coal mine underground mining face and a control method thereof. The adaptive intelligent scraper conveyer used for the coal mine underground mining face comprises a headpiece, a middle trough, a flexible tail, a scraper chain and a scraper, wherein the headpiece and the telescopic tail are respectively provided with a headpiece power part and a tail power part; the headpiece power part is connected with a head frequency converter, and the tail power part is connected with a tail frequency converter. The adaptive intelligent scraper conveyer is characterized in that the adaptive intelligent scraper conveyer also comprises a control cabinet, wherein the control cabinet is respectively connected with a coal quantity detection device, a headpiece power part detection device and an automatic telescopic tail device and is also respectively connected with the head frequency converter and the tail frequency converter so as to regulate the output of the head frequency converter and the tail frequency converter. According to the adaptive intelligent scraper conveyer used for the coal mine underground mining face and the control method of the adaptive intelligent scraper conveyer, equipment can be integrally controlled, and equipment startup and stop can be flexibly controlled to reduce impact on the equipment by startup and stop impact.
Description
Technical field
The present invention relates to a kind of underground coal mine coal-face self-adapting intelligent slat conveyer and control method thereof.
Background technology
Along with the development of coal mining technology, more and more higher to the requirement of coal excavation apparatus quality and automation.Current underground coal mine driving surface slat conveyer does not have controlling functions; during work, tension of scraper chain can not adjust in real time; breakdown judge is by micro-judgment; the critical components such as drive division do not have monitored control system and fault anticipation system and protection system; equipment does not have automation control system; equipment start-stop is large to the impact of equipment, and cause breakdown of equipment many, coal mining efficiency is low.
Summary of the invention
An object of the present invention is to provide that a kind of degree of automation is high, complete function, dependable performance and the special underground coal mine coal-face self-adapting intelligent slat conveyer adapting to underground coal mine working condition;
Two of object of the present invention is to provide a kind of control method of above-mentioned slat conveyer.
A kind of underground coal mine coal-face self-adapting intelligent slat conveyer, comprise head, intermediate channel and telescopic machine tail, and scraper chain and scraper plate, and on this head and telescopic machine tail, be separately installed with head power part and tail power part, this head power part is connected with head frequency converter and this tail power part is connected with afterbody frequency converter, its special feature is: also comprise control box, this control box respectively with coal amount detecting device, head power part detecting device is connected with automatic telescopic tail apparatus, and this control box is also connected with described head frequency converter and afterbody frequency converter respectively, thus the output of this head frequency converter and afterbody frequency converter can be regulated.
Wherein automatic telescopic tail apparatus comprises the oil cylinder displacement pickup be arranged on described telescopic machine tail, and the pressure sensor be arranged in telescopic machine tail oil cylinder working-pressure system, this all the sensors is all connected with described control box, thus the tension force of energy Real-Time Monitoring scraper chain.
Wherein head power part detecting device is connected with described head frequency converter thus obtains its Driving Torque and rotary speed information, and this head power part detecting device is also connected with described control box, thus regulate the output of afterbody frequency converter to make head power part and tail power part power balance by control box in real time according to this Driving Torque and rotary speed information.
Wherein control box is also connected with coalcutter registration device, this coalcutter registration device comprises the infrared transmitter be arranged on coalcutter backplate, and at least two infrared receivers be arranged on hydraulic support column, wherein all infrared receivers are all connected with wired or wireless transmitting device, this wired or wireless transmitting device is connected with control box, thus obtains coalcutter relative to the position of slat conveyer and working direction information.
Wherein coal amount detecting device is arranged on above handpiece of scraper conveyer, and this coal amount detecting device is connected with control box thus can provides the fortune coal amount information of slat conveyer.
Wherein control box is also connected with chain rupture monitoring device, this chain rupture monitoring device comprises the pressure load sensor be arranged on handpiece of scraper conveyer frame two arc blocks, thus the pressure signal measured in slat conveyer working process between each arc block and sprocket shaft group bearing seat, this pressure load sensor is also connected with the PLC in slat conveyer control box, and this PLC is also connected by the head motor of combined switch and slat conveyer, tail motor.
A control method for underground coal mine coal-face self-adapting intelligent slat conveyer, its special feature is, comprises the steps:
(1) by the scanning laser sensor of coal amount detecting device, coal seam profiled outline on scanning slat conveyer, detect the coal seam thickness signal on slat conveyer, by this signal feedback to control box, passing ratio integration or differential and integral calculus calculate current fortune coal amount and compare with the fortune coal amount preset, according to comparative result, the control box output command of slat conveyer controls slat conveyer frequency converter, frequency converter sends head motor, the tail motor of signal control slat conveyer, thus controls the chain speed of slat conveyer;
(2) when the difference detecting that sprocket shaft group acts on the power on handpiece of scraper conveyer frame two arc blocks is greater than 35% with the ratio of power when normally working, then judge a chain breakage, now control box output command carrys out switchgroup, and combined switch controls slat conveyer maintenance down; When detecting that the difference of two power is 15% ~ 35% with the ratio of the power normally worked, tension imbalance or two chain length differences of judgement two chains are excessive, and control box output command controls alarm equipment alarm, needs maintenance down chain; When detecting that the ratio of the difference of two power with the power normally worked is less than 15%, then judge that chain is working properly.
Further, also comprise the following steps (3):
(3) coalcutter registration device is utilized, determine that coalcutter is relative to the position of slat conveyer and working direction information, then by wired or wireless mode by this information transmission to primary controller, thus analysis meter calculates the optimized operation velocity amplitude of now slat conveyer, namely current slat conveyer speed preset value, last primary controller is the slat conveyer speed preset value input intelligent speed-regulating frequency converter obtained, controlled the rotating speed of head electrical motor and tail electrical motor by intelligent speed-regulating frequency converter, thus speed governing is carried out to slat conveyer.
Further, also comprise the following steps (4):
(4) automatic telescopic tail apparatus utilizes the oil cylinder displacement pickup being arranged on tail pars contractilis and the pressure sensor Real-Time Monitoring tension of scraper chain be arranged in oil cylinder working-pressure system, control box Real-Time Monitoring also extracts scraper chain tensile force data, thus open in conjunction with pre-set programs adjustment slat conveyer accordingly, the scraper chain tensile force in stopping time, before specifically running, auto-tensioning is to the tensioning state required; Adjusting in real time according to the change of tension of scraper chain in operational process makes it be in normal range; Automatically adjust scraper chain tensile force after shutting down, make scraper chain be in relaxed state.
Compare with the fortune coal amount preset and export control command accordingly in step (1) and specifically refer to: when the fortune coal amount detected is greater than 80% of specified freight volume, slat conveyer runs according to specified chain speed; When the fortune coal amount detected is the 60%-80% of specified freight volume, slat conveyer chain speed is set to 80% specified chain speed; When the fortune coal amount detected is the 40%-60% of specified freight volume, slat conveyer chain speed is set to 60% specified chain speed; When the fortune coal amount detected is the 30%-40% of specified freight volume, slat conveyer chain speed is set to 40% specified chain speed; When the fortune coal amount detected is less than 30% of specified freight volume, slat conveyer chain speed is set to 30% specified chain speed.
Step utilizes coalcutter registration device in (3), determines that coalcutter relative to the position of slat conveyer and the concrete steps of working direction information is:
(1) coalcutter registration device comprises the infrared transmitter be arranged on coalcutter backplate, and at least two infrared receivers be arranged on hydraulic support column;
(2) when coalcutter is walked on slat conveyer, infrared receiver is by the location point information coordinating continuous acquisition coalcutter place with infrared transmitter, and give control box information transmission, control box is according to the information received, thus determine that coalcutter is heading walking or the walking of tail direction, and determine the particular location of coalcutter on slat conveyer;
Wherein analysis meter calculates the concrete steps of the optimized operation velocity amplitude of now slat conveyer and is: optimized operation velocity amplitude calculates according to following velocity curve function:
0.0008x
2+0.004x+0.4 (-25＜x≤25)
0.0005x
2-0.0075x+0.675 (25＜x≤100)
0001x+1.15 (100＜x≤150)
-0.004x+1.9 (150＜x≤175)
∫(x)＝-0.005x+2.075 (175＜x≤185)；
0.0021x
2-0.83x+83.7 (185＜x≤-185)
-0.005x+2.075 (-185＜x≤-175)
0.000008x
2+0.0002x-0.4 (-175＜x≤-50)
-0.00024x
2+0.0047x+1.62 (-50＜x≤-25)
Wherein ∫ (x) rotating speed that is slat conveyer, unit is meter per second, and x is the distance of coalcutter apart from handpiece of scraper conveyer, and unit is rice.
Underground coal mine coal-face self-adapting intelligent slat conveyer of the present invention and control method thereof can realize controlling Whole Equipment, carry out flexible control reduce the impact that causes equipment of start/stop impact to equipment start-stop; Equipment key position is monitored, anticipation is carried out to fault, reduce the infringement that fault causes.Self-adapting intelligent slat conveyer adjusts in real time according to crossing coal amount in operational process, reduces equipment control service wear and overload protection etc.
Detailed description of the invention
The invention provides a kind of underground coal mine coal-face self-adapting intelligent slat conveyer, comprise head, intermediate channel and telescopic machine tail, and scraper chain and scraper plate, and on this head and telescopic machine tail, be separately installed with head power part and tail power part, this head power part is connected with head frequency converter and this tail power part is connected with afterbody frequency converter, also comprise control box (adopting programmable controller PLC or programmable operations terminal), this control box respectively with coal amount detecting device, head power part detecting device is connected with automatic telescopic tail apparatus, and this control box is also connected with described head frequency converter and afterbody frequency converter respectively, thus the output of this head frequency converter and afterbody frequency converter can be regulated.
Wherein automatic telescopic tail apparatus comprises the oil cylinder displacement pickup be arranged on described telescopic machine tail, and the pressure sensor be arranged in telescopic machine tail oil cylinder working-pressure system, this all the sensors is all connected with described control box, thus the tension force of energy Real-Time Monitoring scraper chain.Wherein head power part detecting device is connected with described head frequency converter thus obtains its Driving Torque and rotary speed information, and this head power part detecting device is also connected with described control box, thus regulate the output of afterbody frequency converter to make head power part and tail power part power balance by control box in real time according to this Driving Torque and rotary speed information.
Wherein control box is also connected with coalcutter registration device, this coalcutter registration device comprises the infrared transmitter be arranged on coalcutter backplate, and at least two infrared receivers be arranged on hydraulic support column, wherein all infrared receivers are all connected with wired or wireless transmitting device, this wired or wireless transmitting device is connected with control box, thus obtains coalcutter relative to the position of slat conveyer and working direction information.
Wherein coal amount detecting device is arranged on above handpiece of scraper conveyer, and this coal amount detecting device is connected with control box thus can provides the fortune coal amount information of slat conveyer.Wherein control box is also connected with chain rupture monitoring device, this chain rupture monitoring device comprises the pressure load sensor be arranged on handpiece of scraper conveyer frame two arc blocks, thus the pressure signal measured in slat conveyer working process between each arc block and sprocket shaft group bearing seat, this pressure load sensor is also connected with the PLC in slat conveyer control box, and this PLC is also connected by the head motor of combined switch and slat conveyer, tail motor.
Present invention also offers a kind of control method of underground coal mine coal-face self-adapting intelligent slat conveyer, comprise the steps:
(1) by the scanning laser sensor of coal amount detecting device, coal seam profiled outline on scanning slat conveyer, detect the coal seam thickness signal on slat conveyer, by this signal feedback to control box, passing ratio integration or differential and integral calculus calculate current fortune coal amount and compare with the fortune coal amount preset, according to comparative result, the control box output command of slat conveyer controls slat conveyer frequency converter, frequency converter sends head motor, the tail motor of signal control slat conveyer, thus controls the chain speed of slat conveyer;
(2) when the difference detecting that sprocket shaft group acts on the power on handpiece of scraper conveyer frame two arc blocks is greater than 35% with the ratio of power when normally working, then judge a chain breakage, now control box output command carrys out switchgroup, and combined switch controls slat conveyer maintenance down; When detecting that the difference of two power is 15% ~ 35% with the ratio of the power normally worked, tension imbalance or two chain length differences of judgement two chains are excessive, and control box output command controls alarm equipment alarm, needs maintenance down chain; When detecting that the ratio of the difference of two power with the power normally worked is less than 15%, then judge that chain is working properly.
Also comprise the following steps (3): step (3), utilize coalcutter registration device, determine that coalcutter is relative to the position of slat conveyer and working direction information, then by wired or wireless mode by this information transmission to primary controller, thus analysis meter calculates the optimized operation velocity amplitude of now slat conveyer, namely current slat conveyer speed preset value, last primary controller is the slat conveyer speed preset value input intelligent speed-regulating frequency converter obtained, the rotating speed of head electrical motor and tail electrical motor is controlled by intelligent speed-regulating frequency converter, thus speed governing is carried out to slat conveyer.
Also comprise the following steps (4): step (4), automatic telescopic tail apparatus utilizes the oil cylinder displacement pickup being arranged on tail pars contractilis and the pressure sensor Real-Time Monitoring tension of scraper chain be arranged in oil cylinder working-pressure system, control box Real-Time Monitoring also extracts scraper chain tensile force data, thus open in conjunction with pre-set programs adjustment slat conveyer accordingly, the scraper chain tensile force in stopping time, before specifically running, auto-tensioning is to the tensioning state required; Adjusting in real time according to the change of tension of scraper chain in operational process makes it be in normal range; Automatically adjust scraper chain tensile force after shutting down, make scraper chain be in relaxed state.
Compare with the fortune coal amount preset and export control command accordingly in step (1) and specifically refer to: when the fortune coal amount detected is greater than 80% of specified freight volume, slat conveyer runs according to specified chain speed; When the fortune coal amount detected is the 60%-80% of specified freight volume, slat conveyer chain speed is set to 80% specified chain speed; When the fortune coal amount detected is the 40%-60% of specified freight volume, slat conveyer chain speed is set to 60% specified chain speed; When the fortune coal amount detected is the 30%-40% of specified freight volume, slat conveyer chain speed is set to 40% specified chain speed; When the fortune coal amount detected is less than 30% of specified freight volume, slat conveyer chain speed is set to 30% specified chain speed.
Step utilizes coalcutter registration device in (3), determines that coalcutter relative to the position of slat conveyer and the concrete steps of working direction information is:
(1) coalcutter registration device comprises the infrared transmitter be arranged on coalcutter backplate, and at least two infrared receivers be arranged on hydraulic support column;
(2) when coalcutter is walked on slat conveyer, infrared receiver is by the location point information coordinating continuous acquisition coalcutter place with infrared transmitter, and give control box information transmission, control box is according to the information received, thus determine that coalcutter is heading walking or the walking of tail direction, and determine the particular location of coalcutter on slat conveyer;
Wherein analysis meter calculates the concrete steps of the optimized operation velocity amplitude of now slat conveyer and is: optimized operation velocity amplitude calculates according to following velocity curve function:
0.0008x
2+0.004x+0.4 (-25＜x≤25)
0.0005x
2-0.0075x+0.675 (25＜x≤100)
0001x+1.15 (100＜x≤150)
-0.004x+1.9 (150＜x≤175)
∫(x)＝-0.005x+2.075 (175＜x≤185)；
0.0021x
2-0.83x+83.7 (185＜x≤-185)
-0.005x+2.075 (-185＜x≤-175)
0.000008x
2+0.0002x-0.4 (-175＜x≤-50)
-0.00024x
2+0.0047x+1.62 (-50＜x≤-25)
Wherein ∫ (x) rotating speed that is slat conveyer, unit is meter per second, and x is the distance of coalcutter apart from handpiece of scraper conveyer, and unit is rice.
Come below to be described in more detail the present invention:
The invention provides one and be applicable to underground coal mine coal-face self-adapting intelligent slat conveyer and control method thereof.This self-adapting intelligent slat conveyer comprises the parts such as head power part, tail power part, head, intermediate channel, telescopic machine tail, control box, coal amount detection unit, scraper chain, sprocket wheel, scraper plate, automatic telescopic tail control unit and head power part detecting unit.
The coal amount detection unit be arranged on during use above handpiece of scraper conveyer utilizes laser scanner Real-Time Monitoring slat conveyer to cross coal amount.The coal amount of crossing that slat conveyer control box detects according to coal amount detection unit judges coal amount size and adjusts chain speed, reduce wasting of slat conveyer, make scraper chain with minimum revolution number of times, in time driving surface raw coal is transported, reduce the number of times that scraper chain operates around sprocket wheel, thus reach the object extending the related components life-spans such as sprocket wheel, scraper chain, intermediate channel.
Slat conveyer control box reads head power part frequency converter (head frequency converter) Driving Torque in real time; and accurately the torque exported is controlled; send the information such as torque and rotating speed in head power part frequency converter to tail power part; the torque that tail power part transmits according to head power part in real time and the information such as rotating speed; real-time regulation output torque; reach the object of head tail drive division power balance, realize the protection to power part.
The utilization of slat conveyer automatic telescopic tail control unit is arranged on the oil cylinder displacement pickup of tail pars contractilis and is arranged on pressure sensor Real-Time Monitoring tension of scraper chain in oil cylinder working-pressure system.Slat conveyer control box Real-Time Monitoring also extracts scraper chain tensile force data, accepts the operating instruction signal of control system, and scraper chain tensile force during adjustment slat conveyer system start and stop, in the scope that before running, auto-tensioning requires to scraper chain predetermincd tension; Change according to tension of scraper chain in operational process adjusts in real time; Automatically adjust scraper chain tensile force after shutting down, scraper chain pretension is reduced to the scope (being in relaxed state) of requirement, realizes protection scraper chain, extends the object in its life-span.
The control box of slat conveyer of the present invention has the drived control characteristics such as on off control, heavily loaded soft start, low speed maintenance model, Long-distance Control, improves slat conveyer automatization level, realizes the Global Macros to main frame.
Claims (11)
1. a underground coal mine coal-face self-adapting intelligent slat conveyer, comprise head, intermediate channel and telescopic machine tail, and scraper chain and scraper plate, and on this head and telescopic machine tail, be separately installed with head power part and tail power part, this head power part is connected with head frequency converter and this tail power part is connected with afterbody frequency converter, it is characterized in that: also comprise control box, this control box respectively with coal amount detecting device, head power part detecting device is connected with automatic telescopic tail apparatus, and this control box is also connected with described head frequency converter and afterbody frequency converter respectively, thus the output of this head frequency converter and afterbody frequency converter can be regulated.
2. a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 1, it is characterized in that: wherein automatic telescopic tail apparatus comprises the oil cylinder displacement pickup be arranged on described telescopic machine tail, and the pressure sensor be arranged in telescopic machine tail oil cylinder working-pressure system, this all the sensors is all connected with described control box, thus the tension force of energy Real-Time Monitoring scraper chain.
3. a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 1, it is characterized in that: wherein head power part detecting device is connected with described head frequency converter thus obtains its Driving Torque and rotary speed information, and this head power part detecting device is also connected with described control box, thus regulate the output of afterbody frequency converter to make head power part and tail power part power balance by control box in real time according to this Driving Torque and rotary speed information.
4. a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 1, it is characterized in that: wherein control box is also connected with coalcutter registration device, this coalcutter registration device comprises the infrared transmitter be arranged on coalcutter backplate, and at least two infrared receivers be arranged on hydraulic support column, wherein all infrared receivers are all connected with wired or wireless transmitting device, this wired or wireless transmitting device is connected with control box, thus obtains coalcutter relative to the position of slat conveyer and working direction information.
5. a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 1, it is characterized in that: wherein coal amount detecting device is arranged on above handpiece of scraper conveyer, this coal amount detecting device is connected with control box thus can provides the fortune coal amount information of slat conveyer.
6. a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 1, it is characterized in that: wherein control box is also connected with chain rupture monitoring device, this chain rupture monitoring device comprises the pressure load sensor be arranged on handpiece of scraper conveyer frame two arc blocks, thus the pressure signal measured in slat conveyer working process between each arc block and sprocket shaft group bearing seat, this pressure load sensor is also connected with the PLC in slat conveyer control box, this PLC is also by the head motor of combined switch and slat conveyer, tail motor connects.
7. a underground coal mine coal-face control method for self-adapting intelligent slat conveyer, is characterized in that, comprise the steps:
(1) by the scanning laser sensor of coal amount detecting device, coal seam profiled outline on scanning slat conveyer, detect the coal seam thickness signal on slat conveyer, by this signal feedback to control box, passing ratio integration or differential and integral calculus calculate current fortune coal amount and compare with the fortune coal amount preset, according to comparative result, the control box output command of slat conveyer controls slat conveyer frequency converter, frequency converter sends head motor, the tail motor of signal control slat conveyer, thus controls the chain speed of slat conveyer;
(2) when the difference detecting that sprocket shaft group acts on the power on handpiece of scraper conveyer frame two arc blocks is greater than 35% with the ratio of power when normally working, then judge a chain breakage, now control box output command carrys out switchgroup, and combined switch controls slat conveyer maintenance down; When detecting that the difference of two power is 15% ~ 35% with the ratio of the power normally worked, tension imbalance or two chain length differences of judgement two chains are excessive, and control box output command controls alarm equipment alarm, needs maintenance down chain; When detecting that the ratio of the difference of two power with the power normally worked is less than 15%, then judge that chain is working properly.
8. the control method of a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 7, is characterized in that, also comprise the following steps (3):
(3) coalcutter registration device is utilized, determine that coalcutter is relative to the position of slat conveyer and working direction information, then by wired or wireless mode by this information transmission to primary controller, thus analysis meter calculates the optimized operation velocity amplitude of now slat conveyer, namely current slat conveyer speed preset value, last primary controller is the slat conveyer speed preset value input intelligent speed-regulating frequency converter obtained, controlled the rotating speed of head electrical motor and tail electrical motor by intelligent speed-regulating frequency converter, thus speed governing is carried out to slat conveyer.
9. the control method of a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 7, is characterized in that, also comprise the following steps (4):
(4) automatic telescopic tail apparatus utilizes the oil cylinder displacement pickup being arranged on tail pars contractilis and the pressure sensor Real-Time Monitoring tension of scraper chain be arranged in oil cylinder working-pressure system, control box Real-Time Monitoring also extracts scraper chain tensile force data, thus open in conjunction with pre-set programs adjustment slat conveyer accordingly, the scraper chain tensile force in stopping time, before specifically running, auto-tensioning is to the tensioning state required; Adjusting in real time according to the change of tension of scraper chain in operational process makes it be in normal range; Automatically adjust scraper chain tensile force after shutting down, make scraper chain be in relaxed state.
10. the control method of a kind of underground coal mine coal-face self-adapting intelligent slat conveyer as claimed in claim 7, it is characterized in that: compare with the fortune coal amount that presets and export control command accordingly in step (1) and specifically refer to: when the fortune coal amount detected is greater than 80% of specified freight volume, slat conveyer runs according to specified chain speed; When the fortune coal amount detected is the 60%-80% of specified freight volume, slat conveyer chain speed is set to 80% specified chain speed; When the fortune coal amount detected is the 40%-60% of specified freight volume, slat conveyer chain speed is set to 60% specified chain speed; When the fortune coal amount detected is the 30%-40% of specified freight volume, slat conveyer chain speed is set to 40% specified chain speed; When the fortune coal amount detected is less than 30% of specified freight volume, slat conveyer chain speed is set to 30% specified chain speed.
The control method of 11. a kind of underground coal mine coal-face self-adapting intelligent slat conveyers as claimed in claim 8, it is characterized in that: step utilizes coalcutter registration device in (3), determine that coalcutter relative to the position of slat conveyer and the concrete steps of working direction information is:
(1) coalcutter registration device comprises the infrared transmitter be arranged on coalcutter backplate, and at least two infrared receivers be arranged on hydraulic support column;
(2) when coalcutter is walked on slat conveyer, infrared receiver is by the location point information coordinating continuous acquisition coalcutter place with infrared transmitter, and give control box information transmission, control box is according to the information received, thus determine that coalcutter is heading walking or the walking of tail direction, and determine the particular location of coalcutter on slat conveyer;
Wherein analysis meter calculates the concrete steps of the optimized operation velocity amplitude of now slat conveyer and is: optimized operation velocity amplitude calculates according to following velocity curve function:
0.0008x
2+0.004x+0.4 (-25＜x≤25)
0.0005x
2-0.0075x+0.675 (25＜x≤100)
0001x+1.15 (100＜x≤150)
-0.004x+1.9 (150＜x≤175)
∫(x)＝-0.005x+2.075 (175＜x≤185)；
0.0021x
2-0.83x+83.7 (185＜x≤-185)
-0.005x+2.075 (-185＜x≤-175)
0.000008x
2+0.0002x-0.4 (-175＜x≤-50)
-0.00024x
2+0.0047x+1.62 (-50＜x≤-25)
Wherein ∫ (x) rotating speed that is slat conveyer, unit is meter per second, and x is the distance of coalcutter apart from handpiece of scraper conveyer, and unit is rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519721.3A CN104555343B (en) | 2014-09-30 | 2014-09-30 | A kind of underground coal mine coal-face self-adapting intelligent drag conveyor |
Applications Claiming Priority (1)
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| CN104860030A (en) * | 2015-05-14 | 2015-08-26 | 中煤张家口煤矿机械有限责任公司 | Fully mechanized coal face coal flow monitoring and control system |
| CN105217271A (en) * | 2015-08-31 | 2016-01-06 | 西安华光信息技术有限责任公司 | Based on the self-adaptation control method of the belt transportation system of video identification |
| CN106194178A (en) * | 2015-05-29 | 2016-12-07 | 乔伊·姆·特拉华公司 | The output of mining system controls |
| CN106842918A (en) * | 2016-12-23 | 2017-06-13 | 中煤张家口煤矿机械有限责任公司 | A kind of computational methods of the real-time coal amount of drag conveyor |
| CN106865156A (en) * | 2017-04-05 | 2017-06-20 | 江先庆 | A kind of the middle pan of scraper conveyor wear detector and its detection method |
| CN109436675A (en) * | 2018-12-10 | 2019-03-08 | 宁夏天地奔牛实业集团有限公司 | Distribution Warehouse scraper plate for scraper conveyor climbing tooth point jumps tooth condition monitoring system |
| CN110271836A (en) * | 2018-12-03 | 2019-09-24 | 中煤张家口煤矿机械有限责任公司 | A kind of coal mine isomery driving scraper conveying equipment control system and method |
| CN110963256A (en) * | 2019-11-21 | 2020-04-07 | 青岛中加特电气股份有限公司 | Self-adaptive speed regulation control method for conveyor |
| CN111689170A (en) * | 2020-06-17 | 2020-09-22 | 青岛中加特电气股份有限公司 | Scraper conveyor and self-adaptive speed regulation method thereof |
| CN111997679A (en) * | 2020-09-09 | 2020-11-27 | 重庆工程职业技术学院 | Fully-mechanized coal mining face end pushing state monitoring device |
| CN112901258A (en) * | 2021-01-14 | 2021-06-04 | 临沂矿业集团菏泽煤电有限公司 | Intelligent mine fully-mechanized mining equipment convenient for realizing mobile discharging and fully-mechanized mining method thereof |
| CN113189932A (en) * | 2021-05-12 | 2021-07-30 | 台达电子企业管理（上海）有限公司 | Logistics expansion machine control equipment |
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| CN104860030A (en) * | 2015-05-14 | 2015-08-26 | 中煤张家口煤矿机械有限责任公司 | Fully mechanized coal face coal flow monitoring and control system |
| CN106194178A (en) * | 2015-05-29 | 2016-12-07 | 乔伊·姆·特拉华公司 | The output of mining system controls |
| CN106194178B (en) * | 2015-05-29 | 2020-10-30 | 久益环球地下采矿有限责任公司 | Output control of mining system |
| CN105217271A (en) * | 2015-08-31 | 2016-01-06 | 西安华光信息技术有限责任公司 | Based on the self-adaptation control method of the belt transportation system of video identification |
| CN105217271B (en) * | 2015-08-31 | 2017-09-01 | 西安华光信息技术有限责任公司 | The self-adaptation control method of belt transportation system based on video identification |
| CN106842918B (en) * | 2016-12-23 | 2019-07-16 | 中煤张家口煤矿机械有限责任公司 | A kind of calculation method of the real-time coal amount of drag conveyor |
| CN106842918A (en) * | 2016-12-23 | 2017-06-13 | 中煤张家口煤矿机械有限责任公司 | A kind of computational methods of the real-time coal amount of drag conveyor |
| CN106865156B (en) * | 2017-04-05 | 2018-10-12 | 张惠雄 | A kind of the middle pan of scraper conveyor wear detector and its detection method |
| CN106865156A (en) * | 2017-04-05 | 2017-06-20 | 江先庆 | A kind of the middle pan of scraper conveyor wear detector and its detection method |
| CN110271836A (en) * | 2018-12-03 | 2019-09-24 | 中煤张家口煤矿机械有限责任公司 | A kind of coal mine isomery driving scraper conveying equipment control system and method |
| CN110271836B (en) * | 2018-12-03 | 2023-08-22 | 中煤张家口煤矿机械有限责任公司 | Control system and method for heterogeneous driving scraper conveying equipment of coal mine |
| CN109436675A (en) * | 2018-12-10 | 2019-03-08 | 宁夏天地奔牛实业集团有限公司 | Distribution Warehouse scraper plate for scraper conveyor climbing tooth point jumps tooth condition monitoring system |
| CN109436675B (en) * | 2018-12-10 | 2024-04-19 | 宁夏天地奔牛实业集团有限公司 | Scraper blade climbing tooth tip and tooth jumping state monitoring system for scraper conveyor of matched bin |
| CN110963256A (en) * | 2019-11-21 | 2020-04-07 | 青岛中加特电气股份有限公司 | Self-adaptive speed regulation control method for conveyor |
| CN111689170B (en) * | 2020-06-17 | 2021-11-30 | 青岛中加特电气股份有限公司 | Scraper conveyor and self-adaptive speed regulation method thereof |
| CN111689170A (en) * | 2020-06-17 | 2020-09-22 | 青岛中加特电气股份有限公司 | Scraper conveyor and self-adaptive speed regulation method thereof |
| CN111997679B (en) * | 2020-09-09 | 2022-08-30 | 重庆工程职业技术学院 | Fully-mechanized coal mining face end pushing state monitoring device |
| CN111997679A (en) * | 2020-09-09 | 2020-11-27 | 重庆工程职业技术学院 | Fully-mechanized coal mining face end pushing state monitoring device |
| CN112901258A (en) * | 2021-01-14 | 2021-06-04 | 临沂矿业集团菏泽煤电有限公司 | Intelligent mine fully-mechanized mining equipment convenient for realizing mobile discharging and fully-mechanized mining method thereof |
| CN113189932A (en) * | 2021-05-12 | 2021-07-30 | 台达电子企业管理（上海）有限公司 | Logistics expansion machine control equipment |
| CN116335726A (en) * | 2023-05-31 | 2023-06-27 | 四川蓝海智能装备制造有限公司 | Scraper protection control method and engineering vehicle |
| CN116335726B (en) * | 2023-05-31 | 2023-08-11 | 四川蓝海智能装备制造有限公司 | Scraper protection control method and engineering vehicle |
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