Automatic shunting device for coal mine sorting

Abstract

The invention belongs to the technical field of coal mine sorting, and particularly relates to an automatic distributing device for coal mine sorting, which comprises a rack, protective frames are fixedly connected to the outer walls of the two sides of the top of the rack, an electric control conveying frame is fixedly connected to the inner walls of the protective frames, and a conveying belt is rotatably connected to the outer wall of the electric control conveying frame. A central control center is fixedly connected to the outer wall of one side of the rack, a mounting frame is fixedly mounted on the outer wall of the top of the protection frame, and a plurality of rotating rods are rotationally connected to the outer wall of the bottom of the mounting frame. The first guide plate and the second guide plate are controlled to swing in a reciprocating mode through the first limiting belt and the second limiting belt, so that coal blocks on the conveying belt are driven to deviate in the inclined direction, the multiple coal blocks are arranged in a staggered mode, and it is avoided that due to accumulation of part of the coal blocks, the density is too high, and the flow dividing effect of the airflow pusher is affected.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine sorting, and in particular relates to an automatic diversion device for coal mine sorting. Background Art

[0002] During the production process of coal mines, it is often necessary to classify the transported coal blocks according to different sizes, separate the coal and mixed gangue, and then carry out subsequent processing.

[0003] For example, the coal gangue intelligent visual detection and feeding equipment described in the national patent publication number CN118023163A adopts a conveying method of crushing the coal first and then diverting it. It takes pictures of the coal during diversion, and then analyzes the pictures through the host computer to determine whether the corresponding coal bundle is mixed with coal gangue. Finally, the execution pusher is controlled to remove the coal gangue. This solves the problem of incomplete identification and sorting caused by the easy raising of coal dust in the existing coal gangue identification and sorting process, which makes the image acquisition device unclear and causes unclear identification and sorting. At the same time, it also solves the problem that the mixing of large pieces of coal and gangue easily reduces the accuracy of the host computer's judgment and identification, resulting in sorting errors. At the same time, it drives the second T-shaped limit rod and the tamping head to move upward, and so on, thereby tamping and crushing the coal. In this way, larger coal pieces in the coal can be crushed, thereby avoiding affecting the host computer.

[0004] However, the conventional device still has the following problems when used: Since most coal stones are in block shape, the above-mentioned device uses a tamping head to tamp and crush the coal blocks on the conveyor belt below. However, since the tamping head is in vertical extrusion motion and the conveyor belt is in horizontal motion, the difference in the two movements causes the coal to slip during extrusion. After slipping, the coal rolls to other positions, causing the coal distribution density on the conveyor belt to change, which may affect the diversion effect of the airflow pusher. At the same time, the squeezed and crushed coal is prone to adhere to some coal slag on the conveyor belt after being subjected to force. As the conveyor belt rotates one circle, it is easy to be detected again by the image acquisition equipment, which can easily cause confusion in the detection system and errors in the coal density detection. Therefore, we need a device that can ensure uniform coal distribution density. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an automatic diversion device for coal mine sorting, which has the advantage of ensuring uniform coal distribution density.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic diversion device for coal mine sorting, comprising a frame, wherein the outer walls on both sides of the top of the frame are fixedly connected to protective frames, the inner walls of the protective frames are fixedly connected to an electric-controlled conveying frame, the outer walls of the electric-controlled conveying frame are rotatably connected to a conveyor belt, one side outer wall of the frame is fixedly connected to a central control center, the top outer wall of the protective frame is fixedly installed with a mounting frame, the bottom outer wall of the mounting frame is rotatably connected to a plurality of rotating rods, the plurality of rotating rods are arranged in an array directly above the conveyor belt, and the outer walls on one side of the plurality of rotating rods are respectively fixedly connected to a guide plate 1 and a guide plate 2, and the guide plate 1 and the guide plate 2 are staggered.

[0007] Preferably, the outer wall of the rotating rod that fixes the guide plate one is fixedly connected to the connecting pulley one, and the outer wall of the rotating rod that fixes the guide plate two is fixedly connected to the connecting pulley two, and the connecting pulley one and the connecting pulley two are at different heights and are not on the same horizontal line.

[0008] Preferably, both ends of the bottom outer wall of the mounting frame are rotatably connected to extension rods, and the extension rods on both sides are respectively installed with connecting pulley 1 and connecting pulley 2, and the outer walls of all the connecting pulleys 1 are engaged and rotated with the same limiting belt 1, and the outer walls of all the connecting pulleys 2 are engaged and rotated with the same limiting belt 2.

[0009] Preferably, the top outer wall of the mounting frame is fixedly connected to a reciprocating motor 1 and a reciprocating motor 2, the axis of the reciprocating motor 1 is fixedly connected to the rotating rod linked to the limiting belt 1, the axis of the reciprocating motor 2 is fixedly connected to the extension rod linked to the limiting belt 2, the reciprocating motor 1 and the reciprocating motor 2 are both connected to the central control center electrical signal, the bottom outer walls of the guide plate 1 and the guide plate 2 are fixedly connected to a cleaning brush, and the cleaning brush is in contact with the top outer wall of the conveyor belt.

[0010] Preferably, the top outer wall of the protective frame is located directly above the conveyor belt and is fixedly connected to a coal gangue scanner, a jet frame is fixedly installed on one side outer wall of the frame, a plurality of air valve holes are installed in an array on one side outer wall of the jet frame, a supporting base plate is fixedly installed on the bottom inner wall of the frame, an air compressor is fixedly installed on the top outer wall of the supporting base plate, the output pipe of the air compressor is connected to the inner cavity of the jet frame, and the air compressor is connected to the central control center electrical signal.

[0011] Preferably, some outer walls of the frame are fixedly mounted with diversion guide rails, and the diversion guide rails are divided into a coal channel and a gangue channel.

[0012] Preferably, a protective baffle is fixedly mounted on the bottom outer wall of the mounting frame, a mounting plate is fixedly connected to one side outer wall of the protective baffle, and an infrared ranging probe is fixedly connected to the bottom outer wall of the mounting plate.

[0013] Preferably, the outer wall of the mounting plate is slidably connected to an extension plate, the top outer wall of the mounting plate is provided with a slide groove, the inner wall of the extension plate is fixedly installed with a slider, the outer wall of the slider is slidably connected to the inner wall of the slide groove, the bottom outer wall of the extension plate is provided with a limiting bottom plate, the top outer wall of the limiting bottom plate is fixedly connected to Velcro 1, the top outer wall of Velcro 1 is pasted with Velcro 2, the top outer wall of Velcro 2 is fixedly connected to a cleaning cotton sheet, and the top outer wall of the cleaning cotton sheet fits with the bottom outer wall of the infrared ranging probe.

[0014] Preferably, a connecting bearing is fixedly installed on one side outer wall of the limiting base plate, the axis of the electromagnetic plate is rotatably connected to the bottom outer wall of the extension plate, a clamping block is fixedly connected to the one side outer wall of the limiting base plate, and a clamping slot is provided on one side outer wall of the extension plate, and the clamping block is clamped in the clamping slot.

[0015] Preferably, the protective baffle is provided with a connecting groove, the adjusting block is fixedly connected to a mounting seat through the connecting groove, two electromagnetic plates are fixedly installed on the outer wall of one side of the mounting seat, and multiple limiting iron plates are fixedly installed on the outer walls of the limiting belt 1 and the limiting belt 2, and the two electromagnetic plates are magnetically fitted with the limiting iron plates on the limiting belt 1 and the limiting belt 2 respectively, and the adjusting block is fixedly provided with a receiver, and the receiver is connected to the electrical signal of the central control center.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when the coal is transported on the conveyor belt, the reciprocating motor 1 and the reciprocating motor 2 are driven by the central control center, and the guide plates 1 and 2 are controlled to swing back and forth respectively through the limiting belt 1 and the limiting belt 2, thereby driving the coal blocks on the conveyor belt to be diagonally offset, thereby making multiple coal blocks arranged in a staggered manner, avoiding the accumulation of some coal blocks to make the density too high, affecting the diversion effect of the airflow pusher, at the same time, the two systems can control the staggered swinging of the guide plates 1 and 2, so that the guide plates 1 and 2 can briefly reciprocate and close the through holes, and similarly realize the staggered advancement of multiple rows of coal blocks, realizing a mesh distribution and uniform density of coal blocks on the conveyor belt, at the same time, through the reciprocating motion of the guide plates 1 and 2, the cleaning brush below can continuously clean the surface outer wall of the conveyor belt, thereby avoiding that some coal is easily adhered to some coal slag on the conveyor belt after being subjected to force, causing confusion in the density detection system, and further ensuring the uniform distribution density of the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention in the upper right direction.

[0018] Figure 2 It is a front view structural schematic diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the overall structure of the present invention in the upper left direction.

[0020] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B.

[0022] Figure 6 It is a schematic diagram of the overall structure of the mounting frame of the present invention.

[0023] Figure 7 Schematic diagram of the internal structure of the mounting frame of the present invention.

[0024] Figure 8 It is a schematic diagram of the internal structure of the limiting belt of the present invention.

[0025] Figure 9 It is a schematic diagram of the bottom structure of the mounting frame of the present invention.

[0026] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point C in the middle.

[0027] Figure 11 It is a schematic diagram of the overall structure of the adjustment block of the present invention.

[0028] Figure 12 It is a schematic diagram of the overall structure of the cleaning cotton sheet of the present invention.

[0029] Figure: 1, frame; 2, protective frame; 3, electric control transmission frame; 4, conveyor belt; 5, central control center; 6, rotating rod; 7, guide plate 1; 8, guide plate 2; 9, mounting frame; 10, connecting pulley 1; 11, connecting pulley 2; 12, limit belt 1; 13, limit belt 2; 14, extension rod; 15, reciprocating motor 1; 16, reciprocating motor 2; 17, cleaning brush; 18, coal gangue scanner; 19, jet frame; 20, air valve hole; 21, supporting base; 2 2. Air compressor; 23. Diverter guide rail; 24. Coal channel; 25. Gangue channel; 26. Protective baffle; 27. Mounting plate; 28. Slide; 29. ​​Slider; 30. Adjustment block; 31. Connecting groove; 32. Receiver; 33. Extension plate; 34. Mounting seat; 35. Electromagnetic plate; 36. Connecting bearing; 37. Limiting base plate; 38. Velcro 1; 39. Velcro 2; 40. Cleaning cotton pad; 41. Card slot; 42. Card block; 43. Infrared ranging probe; 44. Limiting iron plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme of the present application, and the advantages are more clear and obvious, the following will be further described in detail with the help of the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all embodiments, only to explain the embodiments of the present application, and not for the limitation of the embodiments of the present application, all other embodiments obtained by the ordinary skill in the art without doing creative work, belong to the scope of protection of the present application.

[0031] Embodiment one, please refer to Figures 1 to 12 The present application provides a technical scheme: an automatic shunting device for coal separation, comprising a rack 1, characterized in that: the top of the rack 1 is fixedly connected with a protective frame 2 on both sides of the outer wall, the inner wall of the protective frame 2 is fixedly connected with an electric control conveying frame 3, the outer wall of the electric control conveying frame 3 is rotatably connected with a conveying belt 4, one side of the outer wall of the rack 1 is fixedly connected with a central control center 5, the top of the outer wall of the protective frame 2 is fixedly installed with a mounting frame 9, the bottom of the outer wall of the mounting frame 9 is rotatably connected with a plurality of rotating rods 6, the plurality of rotating rods 6 are arranged in an array above the conveying belt 4, the outer wall of one side of the plurality of rotating rods 6 is respectively fixedly connected with a guide plate one 7 and a guide plate two 8, the guide plate one 7 and the guide plate two 8 are staggered, the outer wall of the rotating rod 6 fixed with the guide plate one 7 is fixedly connected with a connecting pulley one 10, the outer wall of the rotating rod 6 fixed with the guide plate two 8 is fixedly connected with a connecting pulley two 11, the connecting pulley one 10 and the connecting pulley two 11 are different in height and not on the same horizontal line, the bottom of the outer wall of the mounting frame 9 is rotatably connected with an extension rod 14 at both ends, the connecting pulley one 10 and the connecting pulley two 11 are respectively installed on the extension rod 14 on both sides, the outer wall of all the connecting pulley one 10 is rotatably engaged with the same limit belt one 12, the outer wall of all the connecting pulley two 11 is rotatably engaged with the same limit belt two 13, the top of the outer wall of the mounting frame 9 is fixedly connected with a reciprocating motor one 15 and a reciprocating motor two 16, the shaft of the reciprocating motor one 15 is fixedly connected with the rotating rod 6 linked with the limit belt one 12, the shaft of the reciprocating motor two 16 is fixedly connected with the extension rod 14 linked with the limit belt two 13, the reciprocating motor one 15 and the reciprocating motor two 16 are electrically connected with the central control center 5, the bottom of the outer wall of the guide plate one 7 and the guide plate two 8 is fixedly connected with a cleaning brush 17, the cleaning brush 17 is in close contact with the top of the outer wall of the conveying belt 4.

[0032] In the application, when the coal is transported on the conveying belt 4, the reciprocating motor one 15 and the reciprocating motor two 16 are driven by the central control center 5, the guide plate one 7 and the guide plate two 8 are controlled to reciprocate by the limiting belt one 12 and the limiting belt two 13 respectively, so as to drive the coal blocks on the conveying belt 4 to be inclined and offset, and then a plurality of coal blocks are staggered, so that the density of the coal blocks is not too high, and the shunting effect of the airflow pusher is not affected, and at the same time, the guide plate one 7 and the guide plate two 8 can be controlled to stagger and swing by the two systems, so that the guide plate one 7 and the guide plate two 8 can be temporarily reciprocated and closed through the hole, and the plurality of coal blocks can also be staggered and advanced, and the mesh distribution is realized, and the density of the coal blocks on the conveying belt 4 is uniformly conveyed, and at the same time, the cleaning brush 17 below can continuously clean the surface of the conveying belt 4 through the reciprocating movement of the guide plate one 7 and the guide plate two 8, so that the coal blocks are not easily adhered to the conveying belt 4 after being stressed, and the density detection system is not confused, and the distribution density of the coal is further ensured to be uniform.

[0033] In example two, on the basis of example one, the top outer wall of the protective frame 2 is fixedly connected with a coal gangue scanner 18 above the conveying belt 4, the outer wall of one side of the rack 1 is fixedly installed with a gas injection frame 19, the outer wall of one side of the gas injection frame 19 is arrayed with a plurality of gas valve holes 20, the bottom inner wall of the rack 1 is fixedly installed with a supporting bottom plate 21, the top outer wall of the supporting bottom plate 21 is fixedly installed with an air compressor 22, the output pipeline of the air compressor 22 is connected with the inner cavity of the gas injection frame 19, the air compressor 22 is connected with the central control center 5 through an electric signal, and some outer walls of the rack 1 are fixedly installed with a shunt guide rail 23, which is divided into a coal channel 24 and a gangue channel 25.

[0034] In the application, the uniformly distributed coal is detected by infrared detection below the coal gangue scanner 18, so as to identify the coal and the gangue, the airflow stamping generated by the gas valve hole 20 blows the fallen gangue into the gangue channel 25, and the coal normally falls into the coal channel 24.

[0035] In example three, on the basis of example one, the bottom outer wall of the mounting frame 9 is fixedly provided with a protective baffle 26, one side outer wall of the protective baffle 26 is fixedly connected with a mounting plate 27, the bottom outer wall of the mounting plate 27 is fixedly connected with an infrared distance measuring probe 43, the outer wall of the mounting plate 27 is slidably connected with an extension plate 33, the top outer wall of the mounting plate 27 is provided with a sliding groove 28, the inner wall of the extension plate 33 is fixedly provided with a sliding block 29, the outer wall of the sliding block 29 is slidably connected with the inner wall of the sliding groove 28, the bottom outer wall of the extension plate 33 is provided with a limiting bottom plate 37, the top outer wall of the limiting bottom plate 37 is fixedly connected with a magic tape one 38, the top outer wall of the magic tape one 38 is pasted with a magic tape two 39, the top outer wall of the magic tape two 39 is fixedly connected with a cleaning cotton piece 40, the top outer wall of the cleaning cotton piece 40 is matched with the bottom outer wall of the infrared distance measuring probe 43, the side outer wall of the limiting bottom plate 37 is fixedly provided with a connecting bearing 36, the shaft center of the electromagnetic sheet 35 is rotatably connected with the bottom outer wall of the extension plate 33, the side outer wall of the limiting bottom plate 37 is fixedly connected with a clamping block 42, and the side outer wall of the extension plate 33 is provided with a clamping groove 41, and the clamping block 42 is clamped with the clamping groove 41.

[0036] In the present application, there may be more coal that does not meet the standard size of the coal factory on the conveyor belt 4, and there is a possibility of being stuck between the two rotating rods 6, in the present application, by installing the infrared distance measuring probe 43, the distance from the conveyor belt 4 is detected in real time, if it is detected that there is an object higher than the distance between the two rotating rods 6 remaining below the infrared distance measuring probe 43, it means that the coal is stuck, and the signal range is notified to the control center 5 to inform the staff to clean up, avoid coal accumulation, and ensure the distribution density of coal, further, the infrared distance measuring probe 43 may be contaminated with more site coal ash after a long time of operation, thereby affecting the detection of the infrared distance measuring probe 43, in the present application, the cleaning cotton piece 40 is installed to wipe the infrared distance measuring probe 43, thereby reducing the attached coal ash and ensuring the detection rate, at the same time, the staff can also move the clamping block 42 to turn out the limiting bottom plate 37, and the magic tape two 39 is torn off to replace the new cleaning cotton piece 40, thereby ensuring the wiping efficiency.

[0037] In example four, on the basis of example three, the protective baffle 26 is provided with a communication groove 31, the adjusting block 30 is fixedly connected with a mounting seat 34 through the communication groove 31, two electromagnetic sheets 35 are fixedly installed on the side outer wall of the mounting seat 34, a plurality of limiting iron sheets 44 are fixedly installed on the outer walls of the limiting belt one 12 and the limiting belt two 13, the two electromagnetic sheets 35 are respectively magnetically matched with the limiting iron sheets 44 on the limiting belt one 12 and the limiting belt two 13, the adjusting block 30 is fixedly provided with a receiver 32, and the receiver 32 is electrically connected with the control center 5.

[0038] In the present invention, the electromagnetic connection period of the two electromagnetic sheets 35 is controlled by the central control center 5 and the receiver 32, thereby selecting the period of electromagnetic connection with the limiting iron sheet 44. When the limiting belt 12 and the limiting belt 2 13 are running, the segmented magnetic attraction of the two electromagnetic sheets 35 drives the adjustment block 30 to move synchronously, ensuring that the cleaning cotton sheet 40 can move back and forth on the infrared ranging probe 43 for cleaning.

[0039] The working principle and use process of the present invention: In the present invention, when the coal is transported on the conveyor belt 4, the reciprocating motor 15 and the reciprocating motor 2 16 are driven by the central control center 5, and the guide plate 1 7 and the guide plate 2 8 are controlled to swing back and forth through the limiting belt 1 12 and the limiting belt 2 13 respectively, thereby driving the coal blocks on the conveyor belt 4 to deflect obliquely, and then making multiple coal blocks staggered, avoiding the accumulation of some coal blocks to make the density too high, affecting the diversion effect of the airflow pusher, at the same time, the two systems can control the staggered swing of the guide plate 1 7 and the guide plate 2 8, so that the guide plate 1 7 and the guide plate 2 8 can temporarily reciprocate and close the through hole, and can also realize the staggered arrangement of multiple rows of coal blocks. The coal is staggered forward to achieve a mesh distribution and uniform density of coal blocks on the conveyor belt 4. At the same time, the reciprocating motion of the guide plate 1 7 and the guide plate 2 8 allows the cleaning brush 17 below to continuously clean the outer surface of the conveyor belt 4, thereby preventing some coal from easily adhering to some coal slag on the conveyor belt 4 after being subjected to force, causing confusion in the density detection system, and further ensuring the uniform distribution density of the coal. In the present invention, the evenly distributed coal is infrared-detected below the gangue scanner 18 to identify the coal and gangue, and the air flow pressure is generated through the air valve hole 20 to blow the fallen gangue into the gangue channel 25, while the coal falls normally into the coal channel 24. In the present invention, the uniformly distributed coal is infrared-detected below the gangue scanner 18 to identify the coal and gangue, and the air flow pressure is generated through the air valve hole 20 to blow the fallen gangue into the gangue channel 25, while the coal falls normally into the coal channel 24. There may be larger coal that does not meet the standard size of factory coal transferred to the conveyor belt 4, and there is a possibility of being stuck when passing between the two rotating rods 6. In the present invention, by installing an infrared ranging probe 43, the distance from the conveyor belt 4 is detected in real time. If an object higher than the distance between the two rotating rods 6 is detected and trapped below the infrared ranging probe 43, it means that coal is stuck. The signal range is sent to the central control center 5 to notify the staff to clean it up, so as to avoid coal accumulation and ensure the distribution density of coal. Furthermore, after a long period of operation, the infrared ranging probe 43 may be contaminated with more on-site coal dust, thereby affecting the detection of the infrared ranging probe 43. In the present invention, a cleaning cotton sheet 40 is installed at The infrared ranging probe 43 slides to wipe the infrared ranging probe 43, thereby reducing the attached coal dust and ensuring the detection rate. At the same time, personnel can also turn the card block 42 to rotate the limiting base plate 37 out, and replace the new cleaning cotton sheet 40 by tearing off the Velcro 2 39 to ensure wiping efficiency. In the present invention, the electromagnetic connection period of the two electromagnetic sheets 35 is controlled by the central control center 5 and the receiver 32, so as to select the period of electromagnetic connection with the limiting iron sheet 44. When the limiting belt 1 12 and the limiting belt 2 13 are running, the segmented magnetic attraction of the two electromagnetic sheets 35 drives the adjustment block 30 to move synchronously, thereby ensuring that the cleaning cotton sheet 40 can move back and forth on the infrared ranging probe 43 for cleaning.

[0040] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An automatic diversion device for coal mine sorting, comprising a frame (1), characterized in that: The outer walls on both sides of the top of the frame (1) are fixedly connected to protective frames (2), the inner wall of the protective frame (2) is fixedly connected to an electric control transmission frame (3), the outer wall of the electric control transmission frame (3) is rotatably connected to a conveyor belt (4), one side outer wall of the frame (1) is fixedly connected to a central control center (5), the top outer wall of the protective frame (2) is fixedly installed with a mounting frame (9), the bottom outer wall of the mounting frame (9) is rotatably connected to a plurality of rotating rods (6), the plurality of rotating rods (6) are arranged in an array just above the conveyor belt (4), and the outer walls on one side of the plurality of rotating rods (6) are respectively fixedly connected to a guide plate 1 (7) and a guide plate 2 (8), and the guide plate 1 (7) and the guide plate 2 (8) are staggered.

2. The automatic diversion device for coal mine sorting according to claim 1, characterized in that: The outer wall of the rotating rod (6) fixing the guide plate 1 (7) is fixedly connected to the connecting pulley 1 (10), and the outer wall of the rotating rod (6) fixing the guide plate 2 (8) is fixedly connected to the connecting pulley 2 (11), and the connecting pulley 1 (10) and the connecting pulley 2 (11) are at different heights and are not on the same horizontal line.

3. The automatic diversion device for coal mine sorting according to claim 3 is characterized by: Both ends of the bottom outer wall of the mounting frame (9) are rotatably connected to extension rods (14), and the extension rods (14) on both sides are respectively installed with a connecting pulley 1 (10) and a connecting pulley 2 (11), and the outer walls of all the connecting pulleys 1 (10) are engaged and rotated with the same limiting belt 1 (12), and the outer walls of all the connecting pulleys 2 (11) are engaged and rotated with the same limiting belt 2 (13).

4. The automatic diversion device for coal mine sorting according to claim 3, characterized in that: The top outer wall of the mounting frame (9) is fixedly connected to a reciprocating motor 1 (15) and a reciprocating motor 2 (16), the axis of the reciprocating motor 1 (15) is fixedly connected to the rotating rod (6) linked to the limiting belt 1 (12), the axis of the reciprocating motor 2 (16) is fixedly connected to the extension rod (14) linked to the limiting belt 2 (13), the reciprocating motor 1 (15) and the reciprocating motor 2 (16) are both connected to the central control center (5) by electrical signals, the bottom outer walls of the guide plate 1 (7) and the guide plate 2 (8) are fixedly connected to a cleaning brush (17), and the cleaning brush (17) is in contact with the top outer wall of the conveyor belt (4).

5. The automatic diversion device for coal mine sorting according to claim 1, characterized in that: The top outer wall of the protective frame (2) is located just above the conveyor belt (4) and is fixedly connected to a gangue scanner (18); a jet frame (19) is fixedly installed on one side outer wall of the frame (1); a plurality of air valve holes (20) are installed in an array on one side outer wall of the jet frame (19); a supporting base plate (21) is fixedly installed on the bottom inner wall of the frame (1); an air compressor (22) is fixedly installed on the top outer wall of the supporting base plate (21); an output pipe of the air compressor (22) is connected to the inner cavity of the jet frame (19), and the air compressor (22) is electrically connected to the central control center (5).

6. The automatic diversion device for coal mine sorting according to claim 5, characterized in that: Some outer walls of the frame (1) are fixedly mounted with diversion guide rails (23), and the diversion guide rails (23) are divided into a coal channel (24) and a gangue channel (25).

7. The automatic diversion device for coal mine sorting according to claim 1, characterized in that: A protective baffle (26) is fixedly mounted on the bottom outer wall of the mounting frame (9), a mounting plate (27) is fixedly connected to one side outer wall of the protective baffle (26), and an infrared ranging probe (43) is fixedly connected to the bottom outer wall of the mounting plate (27).

8. The automatic diversion device for coal mine sorting according to claim 7, characterized in that: The outer wall of the mounting plate (27) is slidably connected to an extension plate (33), a sliding groove (28) is provided on the top outer wall of the mounting plate (27), a slider (29) is fixedly installed on the inner wall of the extension plate (33), the outer wall of the slider (29) is slidably connected to the inner wall of the sliding groove (28), a limiting bottom plate (37) is provided on the bottom outer wall of the extension plate (33), the top outer wall of the limiting bottom plate (37) is fixedly connected to a Velcro 1 (38), the top outer wall of the Velcro 1 (38) is adhered to a Velcro 2 (39), the top outer wall of the Velcro 2 (39) is fixedly connected to a cleaning cotton sheet (40), and the top outer wall of the cleaning cotton sheet (40) is in contact with the bottom outer wall of the infrared ranging probe (43).

9. The automatic diversion device for coal mine sorting according to claim 8, characterized in that: A connecting bearing (36) is fixedly installed on one side outer wall of the limiting base plate (37), the axis of the electromagnetic plate (35) is rotatably connected to the bottom outer wall of the extension plate (33), a clamping block (42) is fixedly connected to one side outer wall of the limiting base plate (37), and a clamping groove (41) is provided on one side outer wall of the extension plate (33), and the clamping block (42) is clamped with the clamping groove (41).

10. The automatic diversion device for coal mine sorting according to claim 7, characterized in that: The protective baffle (26) is provided with a connecting groove (31), and the adjusting block (30) is fixedly connected to a mounting seat (34) through the connecting groove (31), and two electromagnetic sheets (35) are fixedly installed on the outer wall of one side of the mounting seat (34), and a plurality of limiting iron sheets (44) are fixedly installed on the outer walls of the limiting belt 1 (12) and the limiting belt 2 (13), respectively. The two electromagnetic sheets (35) are magnetically attached to the limiting iron sheets (44) on the limiting belt 1 (12) and the limiting belt 2 (13), and the adjusting block (30) is fixedly provided with a receiver (32), and the receiver (32) is connected to the central control center (5) by electrical signals.

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