CN109026109B - Fully-mechanized caving mining intelligent coal caving mechanism - Google Patents
Fully-mechanized caving mining intelligent coal caving mechanism Download PDFInfo
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- CN109026109B CN109026109B CN201811172209.0A CN201811172209A CN109026109B CN 109026109 B CN109026109 B CN 109026109B CN 201811172209 A CN201811172209 A CN 201811172209A CN 109026109 B CN109026109 B CN 109026109B
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- 239000003245 coal Substances 0.000 title claims abstract description 151
- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Architecture (AREA)
- Structural Engineering (AREA)
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an intelligent fully-mechanized caving mining coal caving mechanism, which belongs to the technical field of comprehensive caving roof coal mining equipment, and comprises a tail beam outer box, a tail beam baffle, a monitoring system and a controller, wherein the monitoring system comprises a coal gangue recognition instrument, a gas monitor and an ultrasonic breaker; the upper and lower surfaces of the tail beam outer box are provided with coal discharging ports, and the tail beam plugboard is driven by the driving mechanism to be telescopically inserted into the tail beam outer box and used for opening or closing the coal discharging ports; the coal gangue identifier and the ultrasonic breaker are arranged on the lower surface of the tail beam outer box, and the gas monitor is arranged on the lower surface of the front end of the tail beam plugboard. According to the invention, the effective emission of top coal can be realized under the condition that the tail beam of the hydraulic support does not rotate, the visible gangue is automatically closed, the ultrasonic crushing technology is adopted for the coal blocks with larger block size and the coal cannot pass through the coal emission window, the safety crushing is realized, the smooth emission of the top coal is ensured, the gas concentration of the goaf is monitored in real time by the gas monitor, the equipment is controlled to stop when the gas is excessive, and the safe, efficient and intelligent production is realized.
Description
Technical Field
The invention relates to the technical field of comprehensive caving coal mining equipment, in particular to a fully-mechanized caving mining intelligent coal caving mechanism capable of effectively caving roof coal when a roof coal transition bracket tail beam is difficult to rotate.
Background
In the thick coal seam exploitation process, a caving coal exploitation technology is mainly adopted, the caving coal hydraulic support tail beam is rotated to realize the caving coal process, the production design of the caving coal support at the present stage is mainly concentrated on a middle support, and the caving coal design of a transition support and an end support is relatively lacking. The end of the working face is affected by the position of the head part of the scraper conveyor and the position relation of the scraper conveyor and the reversed loader, and the scraper conveyor is lifted at a certain gradient at the head part, so that the transition support tail beam is prevented from rotating, the phenomenon that the end support cannot discharge coal is caused, and a large amount of coal resources are wasted.
Disclosure of Invention
The invention aims to provide a fully-mechanized caving mining intelligent coal discharging mechanism which is capable of automatically closing a coal discharging port with large coal-gangue ratio, guaranteeing the coal discharging quality, automatically stopping the gas in excess and guaranteeing the production safety, and effectively discharging top coal when a tail beam of a top coal discharging transition bracket is difficult to rotate, so as to solve the technical problems that the top coal discharging transition bracket is difficult to discharge coal and a coal discharging window is blocked due to overlarge coal block in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides an intelligent fully-mechanized mining coal discharging mechanism, which comprises a tail beam outer box, a tail beam baffle, a monitoring system and a controller, wherein the tail beam baffle is arranged on the tail beam outer box; the tail beam outer box is internally provided with a tail beam inserting plate for opening or closing the coal discharging opening, and the front end of the tail beam outer box is provided with an inserting hole for inserting the tail beam inserting plate;
the rear end of the tail beam outer box is rotatably connected with a shield Liang Shujie of the hydraulic support through driving of a driving mechanism, and the tail beam baffle is rotatably connected with the lower surface of the front end of the tail beam outer box; the tail beam plugboard is driven by the driving mechanism to be telescopically inserted into the tail beam outer box;
the monitoring system comprises an ultrasonic breaker, a coal gangue identifier and a gas monitor; the coal gangue identifier and the ultrasonic breaker are respectively arranged on the front side and the rear side of the coal discharging port on the lower surface of the tail beam outer box, and the gas monitor is arranged on the lower surface of the front end of the tail beam plugboard;
the coal gangue recognition instrument, the ultrasonic breaker and the gas monitor are all in communication connection with the controller.
Further, the driving mechanism for driving the tail beam baffle to rotate is a first hydraulic cylinder, the front end of a piston rod of the first hydraulic cylinder is connected with the front end of the tail beam baffle, and the rear end of the first hydraulic cylinder is connected with the rear end of the tail beam outer box.
Further, the driving mechanism for driving the tail beam inserting plate to stretch out and draw back is a second hydraulic cylinder, the rear end of the second hydraulic cylinder is fixed with the rear end of the tail beam outer box, and the front end of a piston rod of the second hydraulic cylinder is connected with the tail beam inserting plate.
Further, the rear end of the tail boom baffle is provided with a rotating shaft jack, the lower surface of the front end of the tail boom outer box is provided with a first lug plate, and the tail boom baffle is rotatably connected with the tail boom outer box by inserting a rotating shaft into the first lug plate and the rotating shaft jack.
Further, the front end lower surface of tail boom baffle is equipped with the second otic placode, the front end of the piston rod of first pneumatic cylinder with second otic placode round pin hub connection, the rear end lower surface of tail boom outer box is equipped with the third otic placode, the rear end of first pneumatic cylinder with third otic placode round pin hub connection.
Further, the lower surface of tail boom picture peg is equipped with the holding tank that holds the second pneumatic cylinder, the front end of the piston rod of second pneumatic cylinder with the front end of holding tank is connected, the rear end of second pneumatic cylinder stretches out the holding tank with the rear end inner wall connection of tail boom outer container.
Further, the rear end of the lower surface of the tail beam outer box is provided with an oil pipe jack, and an oil pipe of the second hydraulic cylinder is connected with an oil pump through the oil pipe jack.
Further, the front end of the tail beam inserting plate is wedge-shaped, and a plurality of cone-shaped bulges are arranged on the front end face of the tail beam inserting plate.
Further, the coal gangue recognition instrument comprises an image acquisition device and a signal processing device, wherein the image acquisition device is used for acquiring a coal fluid image passing through a coal discharging port in the coal discharging process; the signal processing equipment is used for processing the coal fluid image, acquiring the coal gangue ratio in the coal fluid, sending the coal gangue ratio to the controller, and controlling the oil pump to supply oil reversely by the controller when the controller judges that the coal gangue ratio is smaller than a preset value, so that the tail beam inserting plate is retracted into the tail beam outer box, and the coal discharging port is closed.
The invention has the beneficial effects that: can realize under the rotatory condition of hydraulic support tail boom that the top coal is effective to be discharged, simultaneously, can realize seeing gangue self-closing, to the great unable coal cinder of putting the coal window that passes through of block size, adopt ultrasonic breaking technique, safe broken, guarantee that top coal is discharged smoothly, the gas monitor of tail boom installation carries out real time monitoring to goaf gas concentration, steerable equipment is shut down when gas is excessive, has stronger adaptability, can realize safe, high-efficient, intelligent production.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view structure diagram of an intelligent fully-mechanized mining coal mining mechanism according to an embodiment of the invention.
Fig. 2 is a bottom view structure diagram of the fully-mechanized mining intelligent coal mining mechanism according to the embodiment of the invention.
Fig. 3 is a diagram of a tail boom outer box of the fully-mechanized mining intelligent coal mining mechanism according to an embodiment of the invention.
Fig. 4 is a diagram of a tail boom plugboard of the fully-mechanized mining intelligent coal mining mechanism according to an embodiment of the invention.
Fig. 5 is a view showing a tail boom baffle plate of the fully-mechanized mining intelligent coal mining mechanism according to an embodiment of the invention.
Wherein: 1-a tail beam outer box; 2-tail boom baffles; 3-a coal discharging port; 4-tail boom plugboards; 5-an insertion hole; 6-ultrasonic breaker; 7-coal gangue identification instrument; 8-gas monitor; 9-a first hydraulic cylinder; 10-a second hydraulic cylinder; 11-a rotating shaft jack; 12-a first ear plate; 13-a second ear panel; 14-a third ear panel; 15-a receiving groove; 16-an oil pipe jack; 17-cone-shaped protrusions; 18-fourth ear panels; 19-fifth ear panels.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by way of the drawings are exemplary only and should not be construed as limiting the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or groups thereof. It will be understood that "connected" or "coupled" as used herein may include wireless connection or coupling, and that the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In order that the invention may be readily understood, a further description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings and are not to be construed as limiting embodiments of the invention.
It will be appreciated by those skilled in the art that the drawings are merely schematic representations of examples and that the elements of the drawings are not necessarily required to practice the invention.
Examples
As shown in fig. 1 to 5, the embodiment of the invention provides an intelligent fully-mechanized mining coal caving mechanism, which comprises a tail beam outer box 1, a tail beam baffle plate 2, a monitoring system and a controller; the upper surface and the lower surface of the tail beam outer box 1 are respectively provided with a coal discharging opening 3, the tail beam outer box 1 is internally provided with a tail beam plugboard 4 for opening or closing the coal discharging opening, and the tail beam plugboard 4 is telescopically inserted into the tail beam outer box through the driving of a driving mechanism;
the front end of the tail beam outer box 1 is provided with an insertion hole 5 for the tail beam plugboard 4 to be inserted, the rear end of the tail beam outer box 1 and a shield Liang Shujie of a hydraulic support are rotatably connected to the lower surface of the front end of the tail beam outer box 1 through driving of a driving mechanism;
the monitoring system comprises an ultrasonic breaker 6, a coal gangue identifier 7 and a gas monitor 8; the coal gangue identifier 7 and the ultrasonic breaker 6 are respectively arranged on the front side and the rear side of the coal discharging port 3 on the lower surface of the tail beam outer box 1, and the gas monitor 8 is arranged on the lower surface of the front end of the tail beam plugboard 4;
the coal gangue recognition instrument 7, the ultrasonic breaker 6 and the gas monitor 8 are all in communication connection with the controller.
As shown in fig. 2, in a specific embodiment of the present invention, the driving mechanism for driving the tail boom baffle 2 to rotate is a first hydraulic cylinder 9, the front end of a piston rod of the first hydraulic cylinder 9 is connected to the front end of the tail boom baffle 2, and the rear end of the first hydraulic cylinder 9 is connected to the rear end of the tail boom outer box 1.
As shown in fig. 1, the driving mechanism for driving the tail boom insert plate 4 to be telescopic is a second hydraulic cylinder 10, the rear end of the second hydraulic cylinder 10 is fixed with the rear end of the tail boom outer box 1, and the front end of a piston rod of the second hydraulic cylinder 10 is connected with the tail boom insert plate 4.
As shown in fig. 5 (a), a top view of the tail block 2 is shown, and as shown in fig. 5 (b), a bottom view of the tail block 2 is shown. The rear end of the tail boom baffle 2 is provided with a rotating shaft jack 11, the lower surface of the front end of the tail boom outer box 1 is provided with a first lug plate 12, and the tail boom baffle 2 is rotatably connected with the tail boom outer box 1 by inserting a rotating shaft into the first lug plate 12 and the rotating shaft jack 11.
As shown in fig. 5 (b), in a specific embodiment of the present invention, a second ear plate 13 is disposed on a lower surface of a front end of the tail boom baffle 2, a front end of a piston rod of the first hydraulic cylinder 9 is in pin connection with the second ear plate 13, a third ear plate 14 is disposed on a lower surface of a rear end of the tail boom outer case 1, and a rear end of the first hydraulic cylinder 9 is in pin connection with the third ear plate 14.
As shown in fig. 4 (a), a top view of the tail boom insert plate 4 is shown, and (b) a bottom view of the tail boom insert plate 4 is shown. The lower surface of tail boom picture peg 4 is equipped with the holding tank 15 that holds second pneumatic cylinder 10, the front end of the piston rod of second pneumatic cylinder 10 with the front end of holding tank 15 is connected, the rear end of second pneumatic cylinder 10 stretches out holding tank 15 with the rear end inner wall connection of tail boom outer tank 1.
As shown in fig. 2, an oil pipe jack 16 is disposed at the rear end of the lower surface of the tail boom outer box 1, and an oil pipe of the second hydraulic cylinder 10 is connected with an oil pump through the oil pipe jack 16.
In a specific embodiment of the present invention, the front end of the tail boom insert plate 4 is wedge-shaped, and a plurality of cone-shaped protrusions 17 are arranged on the front end surface of the tail boom insert plate 4. When the tail boom insert plate extends, if large blocks of coal or gangue exist behind the bracket, the conical bulge 17 is easy to crush the tail boom insert plate, so that the tail boom insert plate 4 extends.
In one specific embodiment of the invention, the gangue identifier 7 comprises an image acquisition device and a signal processing device, wherein the image acquisition device is used for acquiring a coal fluid image passing through a coal discharging port in the coal discharging process; the signal processing equipment is used for processing the coal fluid image to obtain the coal-gangue ratio in the coal fluid, the image photographed when the coal-gangue is mixed, the imaging blackness of the coal is high, the whiteness of the gangue is high, when the area with high whiteness in imaging is larger, the content of the gangue is higher, the whiteness area ratio is correspondingly obtained according to the content of the gangue, and when the content of the gangue reaches a certain degree (the content of the gangue is large, the coal-gangue ratio is small, the content of the gangue is small, and the coal-gangue ratio is large), the door closing signal is obtained. And sending the coal gangue ratio to a controller, and when the controller judges that the coal gangue ratio is smaller than a preset value, controlling the oil pump to supply oil reversely by the controller, so that the tail beam inserting plate is retracted into the tail beam outer box, and closing the coal discharging port.
The piston rod of the second hydraulic cylinder 10 extends out, the top end of the piston rod is placed in a hydraulic cylinder fixing groove (namely a containing groove 15) in the tail beam inserting plate 4, the piston rod is fixed on the tail beam inserting plate 4 by nuts, and the other end of the piston rod is fixed on the tail beam outer box 1 by screws. When the second hydraulic cylinder 10 is used for oil feeding, the piston rod pushes the tail beam inserting plate 4 to extend out of the tail beam outer box 1, so that the coal discharging opening 3 is opened for coal discharging; when the oil pump of the second hydraulic cylinder 10 returns oil, the piston rod pulls the tail beam inserting plate 4 to retract into the tail beam outer box 1, so that the coal discharging opening 3 is closed, and coal discharging is stopped.
When the coal gangue recognition instrument 7 recognizes that the coal fluid coal gangue ratio of the coal discharging opening is smaller than a preset value in the coal discharging process, the controller controls the oil pump to return oil, so that the tail boom insert plate 4 is retracted by the aid of the second hydraulic cylinder 10, the coal discharging opening 3 is closed, and coal discharging is stopped.
The tail boom baffle 2 is arranged in the middle of the first lug plate 12 in a rotating way and is connected with the first lug plate 12 through a rotating shaft, the top end of a piston rod of the first hydraulic cylinder 9 is connected with the second lug plate 13 through a pin, and the rear end of the first hydraulic cylinder 9 is connected with the third lug plate 14 through a pin, so that the tail boom baffle 2 can rotate around the rotating shaft under the control of the first hydraulic cylinder 9.
The fifth ear plate 19 is connected to the hydraulic support shield beam, while the hydraulic cylinder piston rod on the shield beam, which controls the rotation of the mechanism, is connected to the fourth ear plate 18, thereby controlling the rotation of the entire mechanism around the shield beam.
The ultrasonic breaker 6 and the gangue identifier 7 are placed at the bottom of the tail beam outer box, and the gas monitor 8 is placed at the tail end of the tail beam plugboard 4.
The coal gangue identifier 7 is matched with a signal processor, the industrial camera shoots images of the discrete particles in the coal discharging process through a coal discharging window, the processor converts the images into corresponding coal gangue ratio, and when the gangue amount reaches a certain degree (large gangue amount, small gangue ratio; small gangue amount and large gangue ratio), the processor controls an oil pump to reversely supply oil, so that the tail boom insert plate 4 is retracted, and the coal discharging port 3 is closed.
The ultrasonic breaker 6 is positioned on the lower surface of the tail beam outer box 1, is normally in a closed state, the ultrasonic transmitting probe is received in the box, and the ultrasonic probe is unscrewed when a large-volume coal block blocks a coal discharging window, and ultrasonic waves are released to shake the coal block.
The gas monitor 8 is arranged on the lower surface of the tail boom plugboard tail end, and gives an alarm when the detected gas concentration exceeds a limit value, and meanwhile, the operation of the equipment is stopped.
When the hydraulic support supports a shield working surface, the tail beam outer box 1 and the shield Liang Xiangping are retracted in the tail beam outer box 1, and the tail beam baffle plate 2 rotates to a position contacting with the goaf gangue behind the support. When coal is discharged, the second hydraulic cylinder 10 is started, the tail beam inserting plate 4 is pushed out of the tail beam outer box 1, top coal falls from the coal discharging opening 3, the coal gangue identifier is started in the coal discharging process, and when gangue appears in the coal discharging opening, the tail beam inserting plate 4 is automatically retracted, and the coal discharging opening 3 is closed. In the coal discharging process, if a coal block with a larger volume blocks the coal discharging window, the ultrasonic breaker is started. The coal gangue identifier has a photographing function, when no coal image information exists in imaging, and when the coal discharging window is opened, the controller can consider that the coal discharging window is blocked, at the moment, the controller automatically starts the ultrasonic breaker to break large coal blocks until the particle size of the large coal blocks meets the size requirement of the coal discharging window, when the bracket moves forward, the tail boom insert plate is in a retracted state, the coal discharging window is closed, and as the hydraulic bracket moves towards the direction of a coal wall, the tail boom baffle plate 2 rotates to be opened, and equipment below the bracket is protected.
In a comprehensive way, according to the intelligent fully-mechanized caving mining coal caving mechanism disclosed by the embodiment of the invention, the coal caving port 3 is arranged on the tail beam outer box 1, the tail beam plugboard 4 is arranged in the tail beam outer box 1, and the tail beam plugboard 4 is driven by the driving mechanism to realize telescopic insertion, so that the coal caving port 3 is opened or closed through the telescopic action of the tail beam plugboard 4; monitoring coal discharging conditions through a coal gangue identifier, controlling a tail beam inserting plate to extend out of a tail beam outer box through a controller if the coal discharging conditions are met, opening a coal discharging port 3 for discharging coal, controlling the tail beam inserting plate to retract into the tail beam outer box through the controller if the coal discharging conditions are not met, and closing the coal discharging port 3 for stopping discharging coal; the ultrasonic breaker is utilized to break the massive coal, so as to avoid blocking the coal discharging port, realize the effective and smooth coal discharging through the gangue identifier and the ultrasonic breaker, and ensure the coal discharging quality. The gas quantity is monitored by the gas monitor, and if the gas quantity exceeds the preset quantity, the controller controls the whole set of coal mining equipment to stop, so that the production safety is ensured.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (7)
1. An intelligent fully-mechanized coal mining mechanism is characterized in that: the device comprises a tail beam outer box (1), a tail beam baffle (2), a monitoring system and a controller; the tail beam outer box (1) is internally provided with tail beam plugboards (4) for opening or closing the coal discharging openings, and the tail beam plugboards (4) are telescopically inserted into the tail beam outer box through driving of a driving mechanism;
the front end of the tail beam outer box (1) is provided with an insertion hole (5) for the tail beam insertion plate (4) to be inserted, the rear end of the tail beam outer box (1) and a shield Liang Shujie of a hydraulic support are arranged, and the tail beam baffle (2) is rotatably connected to the lower surface of the front end of the tail beam outer box (1) through the driving of a driving mechanism;
the monitoring system comprises an ultrasonic breaker (6), a coal gangue identifier (7) and a gas monitor (8); the coal gangue identifier (7) and the ultrasonic breaker (6) are respectively arranged on the front side and the rear side of the coal discharging port (3) on the lower surface of the tail beam outer box (1), and the gas monitor (8) is arranged on the lower surface of the front end of the tail beam inserting plate (4);
the coal gangue recognition instrument (7), the ultrasonic breaker (6) and the gas monitor (8) are all in communication connection with the controller;
the driving mechanism for driving the tail beam baffle plate (2) to rotate is a first hydraulic cylinder (9), the front end of a piston rod of the first hydraulic cylinder (9) is connected with the front end of the tail beam baffle plate (2), and the rear end of the first hydraulic cylinder (9) is connected with the rear end of the tail beam outer box (1);
the telescopic driving mechanism for driving the tail beam inserting plate (4) is a second hydraulic cylinder (10), the rear end of the second hydraulic cylinder (10) is fixed with the rear end of the tail beam outer box (1), and the front end of a piston rod of the second hydraulic cylinder (10) is connected with the tail beam inserting plate (4);
the rear end of the tail boom baffle (2) is provided with a rotating shaft jack (11), the lower surface of the front end of the tail boom outer box (1) is provided with a first lug plate (12), and the tail boom baffle (2) is rotatably connected with the tail boom outer box (1) by inserting a rotating shaft into the first lug plate (12) and the rotating shaft jack (11).
2. The fully mechanized caving mining intelligent coal caving mechanism of claim 1, wherein: the front end lower surface of tail boom baffle (2) is equipped with second otic placode (13), the front end of the piston rod of first pneumatic cylinder (9) with second otic placode (13) round pin hub connection, the rear end lower surface of tail boom outer box (1) is equipped with third otic placode (14), the rear end of first pneumatic cylinder (9) with third otic placode (14) round pin hub connection.
3. The fully mechanized caving mining intelligent coal caving mechanism of claim 1, wherein: the lower surface of tail boom picture peg (4) is equipped with holds holding groove (15) of second pneumatic cylinder (10), the front end of the piston rod of second pneumatic cylinder (10) with the front end of holding groove (15) is connected, the rear end of second pneumatic cylinder (10) stretches out holding groove (15) with the rear end inner wall connection of tail boom outer tank (1).
4. The fully mechanized caving mining intelligent coal caving mechanism of claim 3, wherein: the rear end of the lower surface of the tail beam outer box (1) is provided with an oil pipe jack (16), and an oil pipe of the second hydraulic cylinder (10) is connected with an oil pump through the oil pipe jack (16).
5. The fully mechanized caving mining intelligent coal caving mechanism of claim 1, wherein: the front end of the tail beam inserting plate (4) is wedge-shaped, and a plurality of cone-shaped bulges (17) are arranged on the front end surface of the tail beam inserting plate (4).
6. The fully mechanized caving mining intelligent coal caving mechanism of claim 1, wherein: the coal gangue recognition instrument (7) comprises an image acquisition device and a signal processing device, wherein the image acquisition device is used for acquiring a coal fluid image passing through a coal discharging port in the coal discharging process; the signal processing equipment is used for processing the coal fluid image, acquiring the coal-gangue ratio in the coal fluid and sending the coal-gangue ratio to the controller; when the controller judges that the gangue ratio is smaller than the preset value, the controller controls the oil pump to supply oil reversely, so that the second hydraulic cylinder pulls the tail beam inserting plate to retract into the tail beam outer box, and the coal discharging opening is closed.
7. The fully mechanized caving mining intelligent coal caving mechanism of claim 6, wherein: the image acquisition device is an industrial camera.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811172209.0A CN109026109B (en) | 2018-10-09 | 2018-10-09 | Fully-mechanized caving mining intelligent coal caving mechanism |
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| CN201811172209.0A CN109026109B (en) | 2018-10-09 | 2018-10-09 | Fully-mechanized caving mining intelligent coal caving mechanism |
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| CN109026109A CN109026109A (en) | 2018-12-18 |
| CN109026109B true CN109026109B (en) | 2023-11-28 |
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| CN110748364B (en) * | 2019-10-16 | 2021-07-30 | 河南理工大学 | Caving coal hydraulic support breaker |
| CN111878170B (en) * | 2020-07-03 | 2022-02-11 | 太原理工大学 | Device and method for controlling top coal caving operation based on ultrasonic intensity test |
| CN114215572B (en) * | 2021-10-25 | 2024-03-19 | 北京天玛智控科技股份有限公司 | Control method and device for fully-mechanized caving face of coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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