Automatic shunting device for coal mine sorting

Abstract

The present application belongs to the technical field of coal mine sorting, and particularly relates to an automatic shunting device for coal mine sorting, which comprises a rack, the top outer walls of the rack are fixedly connected with protective frames, the inner walls of the protective frames are fixedly connected with electric control conveying frames, the outer walls of the electric control conveying frames are rotatably connected with conveying belts, one side outer wall of the rack is fixedly connected with a central control center, the top outer wall of the protective frame is fixedly provided with a mounting frame, the bottom outer wall of the mounting frame is rotatably connected with a plurality of rotating rods, when coal is transported by the conveying belts, the reciprocating motor one and the reciprocating motor two are driven by the central control center, the guide plates one and the guide plates two are controlled to reciprocate by the limiting belts one and the limiting belts two respectively, so as to drive the coal blocks on the conveying belts to be obliquely offset, and then a plurality of coal blocks are staggered, so that the density of the coal blocks is not too high due to the accumulation of part of the coal blocks, and the shunting effect of the airflow pusher is not affected.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of coal mine sorting, and particularly relates to an automatic shunting device for coal mine sorting. BACKGROUND

[0002] In 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 coal gangue, and then perform subsequent processing.

[0003] For example, the coal gangue intelligent visual detection conveying equipment described in the state patent publication No. CN118023163A adopts a conveying mode of first crushing and then shunting the coal, takes a photo of the coal during shunting, analyzes the photographed image by the upper computer, judges whether the corresponding coal bundle is mixed with coal gangue, and finally controls the operation of the pusher to remove the coal gangue, solving the problem that in the existing coal gangue recognition and sorting process, coal dust is easily raised, the image acquisition equipment cannot take a clear photo, and the recognition and sorting are not thorough enough. At the same time, it also solves the problem that the mixture of large coal blocks and gangue easily reduces the accuracy of the upper computer judgment and recognition, and causes sorting errors. At the same time, the second T-shaped limiting rod and the tamping head are driven to move upward, and thus reciprocate, so as to tamping and crushing the coal, so that the large coal blocks in the coal can be crushed, thereby avoiding affecting the upper computer.

[0004] However, the traditional device has the following problems when in use:

[0005] Since the coal gangue is mostly in block form, the device tamps and crushes the coal blocks on the lower conveying belt by the tamping head. However, since the tamping head is in vertical extrusion movement, and the conveying belt is in horizontal movement, the difference in movement direction of the two causes the possibility of slippage of the coal during extrusion. After the coal slips, it rolls to other positions, causing the distribution density of the coal on the conveying belt to change, which may affect the shunting effect of the airflow pusher. At the same time, the extruded and crushed coal is easy to adhere to part of the coal ash on the conveying belt after being stressed, and is easy to be detected again by the image acquisition equipment after one revolution of the conveying belt, which may cause confusion of the detection system and errors in the density detection of the coal. Therefore, we need a device that can ensure uniform distribution density of coal. SUMMARY

[0006] In view of the deficiencies in the prior art, the purpose of the present application is to provide an automatic shunting device for coal mine sorting, which has the advantage of ensuring uniform distribution density of coal.

[0007] In order to achieve the above object, the present application provides the following technical scheme: An automatic shunting device for coal mine sorting, comprising a rack, the top of the rack is fixedly connected with a protective frame on both sides of the outer wall, the inner wall of the protective frame is fixedly connected with an electric control conveying frame, the outer wall of the electric control conveying frame is rotatably connected with a conveying belt, one side of the outer wall of the rack is fixedly connected with a central control center, the top of the outer wall of the protective frame is fixedly connected with a mounting frame, the bottom of the outer wall of the mounting frame is rotatably connected with a plurality of rotating rods, the plurality of rotating rods are arranged in an array above the conveying belt, the outer wall of one side of the rotating rods is respectively fixedly connected with a guide plate one and a guide plate two, and the guide plate one and the guide plate two are staggered.

[0008] Preferably, the outer wall of the rotating rod fixedly connected with the guide plate one is fixedly connected with a connecting belt pulley one, the outer wall of the rotating rod fixedly connected with the guide plate two is fixedly connected with a connecting belt pulley two, and the connecting belt pulley one and the connecting belt pulley two are not at the same horizontal line.

[0009] Preferably, the bottom of the outer wall of the mounting frame is rotatably connected with an extension rod at both ends, the extension rods on both sides are respectively provided with a connecting belt pulley one and a connecting belt pulley two, the outer wall of all the connecting belt pulleys one is rotatably engaged with a same limiting belt one, and the outer wall of all the connecting belt pulleys two is rotatably engaged with a same limiting belt two.

[0010] Preferably, the top of the outer wall of the mounting frame is fixedly connected with a reciprocating operation motor one and a reciprocating operation motor two, the axis of the reciprocating operation motor one is fixedly connected with the rotating rod linked with the limiting belt one, the axis of the reciprocating operation motor two is fixedly connected with the extension rod linked with the limiting belt two, the reciprocating operation motor one and the reciprocating operation motor two are electrically connected with the central control center, the bottom of the outer wall of the guide plate one and the guide plate two is fixedly connected with a cleaning brush, and the cleaning brush is attached to the top of the outer wall of the conveying belt.

[0011] Preferably, the top of the outer wall of the protective frame is fixedly connected with a coal gangue scanner above the conveying belt, one side of the outer wall of the rack is fixedly connected with a jet frame, a plurality of air valve holes are arranged on one side of the outer wall of the jet frame, the bottom of the inner wall of the rack is fixedly connected with a supporting bottom plate, the top of the outer wall of the supporting bottom plate is fixedly connected with an air compressor, the output pipeline of the air compressor is connected with the inner cavity of the jet frame, and the air compressor is electrically connected with the central control center.

[0012] Preferably, some of the outer walls of the rack are fixedly connected with a shunting guide rail, and the shunting guide rail is divided into a coal channel and a gangue channel.

[0013] Preferably, the bottom of the outer wall of the mounting frame is fixedly connected with a protective baffle, one side of the outer wall of the protective baffle is fixedly connected with a mounting plate, and the bottom of the outer wall of the mounting plate is fixedly connected with an infrared distance measuring probe.

[0014] 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 sliding 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 sliding groove, the bottom outer wall of the extension plate is provided with a limiting base plate, the top outer wall of the limiting base plate is fixedly connected with a Velcro closure one, the top outer wall of the Velcro closure one is attached with a Velcro closure two, the top outer wall of the Velcro closure two is fixedly connected with a cleaning cotton pad, and the top outer wall of the cleaning cotton pad is attached to the bottom outer wall of the infrared ranging probe.

[0015] Preferably, the limiting base plate is fixedly installed with a connecting bearing, the axis of the electromagnetic plate is rotatably connected to the bottom outer wall of the extension plate, a locking block is fixedly connected to one side outer wall of the limiting base plate, and a locking groove is opened on one side outer wall of the extension plate, with the locking block engaging with the locking groove.

[0016] Preferably, the protective baffle has a connecting groove, and the adjusting block is fixedly connected to the mounting base through the connecting groove. Two electromagnetic plates are fixedly installed on one outer wall of the mounting base, and multiple limiting iron plates are fixedly installed on the outer walls of the first and second limiting belts. The two electromagnetic plates are magnetically attached to the limiting iron plates on the first and second limiting belts, respectively. A receiver is fixedly installed on the adjusting block, and the receiver is connected to the central control center via electrical signals.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In this invention, when coal is transported on a conveyor belt, the central control center drives reciprocating motors one and two, which in turn control guide plates one and two to oscillate back and forth via limit belts one and two, respectively. This causes the coal blocks on the conveyor belt to shift obliquely, resulting in a staggered arrangement of multiple coal blocks. This prevents some coal blocks from accumulating and becoming too dense, which would affect the flow distribution effect of the airflow actuator. Simultaneously, the two systems can control the staggered oscillation of guide plates one and two, allowing them to briefly close the through-holes. This also achieves a staggered forward movement of multiple rows of coal blocks, creating a mesh-like distribution and uniformly distributing the coal density on the conveyor belt. Furthermore, the reciprocating motion of guide plates one and two allows the cleaning brushes below to continuously clean the outer surface of the conveyor belt, preventing coal dust from adhering to the conveyor belt after being subjected to force, thus avoiding confusion in the density detection system and further ensuring a uniform coal distribution density. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention in the upper right direction.

[0020] Figure 2 This is a front view structural diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall structure of the present invention in the upper left direction.

[0022] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0023] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0024] Figure 6 This is a schematic diagram of the overall structure of the mounting bracket of the present invention.

[0025] Figure 7 This is a schematic diagram of the internal structure of the mounting bracket of the present invention.

[0026] Figure 8 This is a schematic diagram of the internal structure of the limiting belt of the present invention.

[0027] Figure 9 This is a schematic diagram of the bottom structure of the mounting bracket of the present invention.

[0028] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point C.

[0029] Figure 11 This is a schematic diagram of the overall structure of the adjustment block of the present invention.

[0030] Figure 12 This is a schematic diagram of the overall structure of the cleaning cotton pad of the present invention.

[0031] In the diagram: 1. Frame; 2. Protective frame; 3. Electrically controlled transmission frame; 4. Conveyor belt; 5. Central control center; 6. Rotating rod; 7. Guide plate one; 8. Guide plate two; 9. Mounting frame; 10. Connecting pulley one; 11. Connecting pulley two; 12. Limiting belt one; 13. Limiting belt two; 14. Extension rod; 15. Reciprocating motor one; 16. Reciprocating motor two; 17. Cleaning brush; 18. Coal gangue scanner; 19. Air jet frame; 20. Air valve hole; 21. Support base plate; 2. Air compressor; 23. Diverter guide rail; 24. Coal channel; 25. Gangue channel; 26. Protective baffle; 27. Mounting plate; 28. Slide rail; 29. ​​Slider; 30. Adjusting block; 31. Connecting groove; 32. Receiver; 33. Extension plate; 34. Mounting base; 35. Electromagnetic plate; 36. Connecting bearing; 37. Limiting base plate; 38. Velcro 1; 39. Velcro 2; 40. Cleaning cotton pad; 41. Slot; 42. Locking block; 43. Infrared ranging probe; 44. Limiting iron plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1, please refer to Figures 1 to 12 This invention provides a technical solution: an automatic sorting and diversion device for coal mines, comprising a frame 1, characterized in that: protective frames 2 are fixedly connected to the outer walls of the top two sides of the frame 1; an electrically controlled conveyor frame 3 is fixedly connected to the inner wall of the protective frame 2; a conveyor belt 4 is rotatably connected to the outer wall of the electrically controlled conveyor frame 3; a central control center 5 is fixedly connected to one outer wall of the frame 1; an installation frame 9 is fixedly installed on the top outer wall of the protective frame 2; multiple rotating rods 6 are rotatably connected to the bottom outer wall of the installation frame 9; the multiple rotating rods 6 are arranged in an array directly above the conveyor belt 4; guide plates 1 and 2 are respectively fixedly connected to one outer wall of the multiple rotating rods 6; guide plates 1 and 2 are staggered; a connecting pulley 10 is fixedly connected to the outer wall of the rotating rod 6 that fixes guide plate 1; a connecting pulley 2 11 is fixedly connected to the outer wall of the rotating rod 6 that fixes guide plate 2; the height of connecting pulley 10 and connecting pulley 2 11 is... The different components are not on the same horizontal line. Both ends of the bottom outer wall of the mounting frame 9 are rotatably connected to extension rods 14. The two extension rods 14 are respectively equipped with connecting pulley 10 and connecting pulley 2 11. The outer walls of all connecting pulley 10 are meshed and rotated by the same limiting belt 12. The outer walls of all connecting pulley 2 11 are meshed and rotated by the same limiting belt 2 13. The top outer wall of the mounting frame 9 is fixedly connected to reciprocating motor 15 and reciprocating motor 2 16. The shaft of reciprocating motor 15 is fixedly connected to the rotating rod 6 linked to the limiting belt 12. The shaft of reciprocating motor 2 16 is fixedly connected to the extension rod 14 linked to the limiting belt 2 13. Both reciprocating motor 15 and reciprocating motor 2 16 are electrically connected to the central control center 5. The bottom outer walls of guide plate 1 7 and guide plate 2 8 are fixedly connected to cleaning brushes 17, which are in contact with the top outer wall of the conveyor belt 4.

[0034] In this invention, when coal is transported on conveyor belt 4, the central control center 5 drives reciprocating motor 15 and reciprocating motor 16, which in turn control guide plates 7 and 8 to swing back and forth via limit belts 12 and 13, respectively. This causes the coal blocks on conveyor belt 4 to shift obliquely, resulting in multiple coal blocks being arranged in an alternating pattern. This prevents some coal blocks from accumulating and becoming too dense, which would affect the flow distribution effect of the airflow actuator. At the same time, the two systems can control the staggered swing of guide plates 7 and 8, allowing them to briefly close the through holes. This also enables multiple rows of coal blocks to advance in an alternating pattern, achieving a mesh-like distribution and uniform coal block density on conveyor belt 4. Meanwhile, the reciprocating motion of guide plates 7 and 8 allows the cleaning brush 17 below to continuously clean the outer surface of conveyor belt 4, preventing some coal from easily adhering to the conveyor belt 4 after being subjected to force, thus avoiding confusion in the density detection system and further ensuring the uniform distribution density of the coal.

[0035] In Example 2, based on Example 1, a coal gangue scanner 18 is fixedly connected to the top outer wall of the protective frame 2 directly above the conveyor belt 4. An air jet frame 19 is fixedly installed on one side outer wall of the frame 1. Multiple air valve holes 20 are arrayed on one side outer wall of the air jet frame 19. A support 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 support base plate 21. The output pipe of the air compressor 22 is connected to the inner cavity of the air jet frame 19. The air compressor 22 is electrically connected to the central control center 5. Diversion guide rails 23 are fixedly installed on some outer walls of the frame 1. The diversion guide rails 23 are divided into coal channels 24 and gangue channels 25.

[0036] In this invention, evenly distributed coal is detected by infrared below the coal gangue scanner 18 to identify coal and gangue. Airflow is generated through the air valve hole 20 to blow the falling gangue into the gangue channel 25, while the coal falls normally into the coal channel 24.

[0037] In Example 3, based on Example 1, a protective baffle 26 is fixedly installed on the bottom outer wall of the mounting frame 9. A mounting plate 27 is fixedly connected to one side of the outer wall of the protective baffle 26. An infrared ranging probe 43 is fixedly connected to the bottom outer wall of the mounting plate 27. An extension plate 33 is slidably connected to the outer wall of the mounting plate 27. A groove 28 is formed 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 groove 28. A limiting base plate 37 is provided on the bottom outer wall of the extension plate 33. The top outer wall is fixedly connected with Velcro 38, the top outer wall of Velcro 38 is attached with Velcro 39, the top outer wall of Velcro 39 is fixedly connected with a cleaning cotton pad 40, the top outer wall of the cleaning cotton pad 40 is attached to the bottom outer wall of the infrared ranging probe 43, the limiting base plate 37 is fixedly installed with a connecting bearing 36, the axis of the electromagnetic plate 35 is rotatably connected to the bottom outer wall of the extension plate 33, a locking block 42 is fixedly connected to one side outer wall of the limiting base plate 37, and a slot 41 is opened on one side outer wall of the extension plate 33, the locking block 42 is engaged with the slot 41.

[0038] In this invention, larger pieces of coal that do not meet the standard size for factory output may be conveyed onto the conveyor belt 4. These may get stuck between the two rotating rods 6. To address this, an infrared ranging probe 43 is installed to monitor the distance between the probe and the conveyor belt 4 in real time. If an object larger than the distance between the two rotating rods 6 is detected and remains below the infrared ranging probe 43, it indicates that coal is stuck. The signal is then transmitted to the central control center 5 to notify staff to clean the object, preventing coal accumulation and ensuring the density of coal distribution. Furthermore, after prolonged operation, the infrared ranging probe 43 may accumulate a lot of coal dust, affecting its detection capabilities. To address this, a cleaning pad 40 is installed and slid across the infrared ranging probe 43 to wipe it, reducing the amount of coal dust and ensuring a high detection rate. Additionally, personnel can move the locking block 42 to rotate the limiting plate 37 out and remove the Velcro 39 to replace the cleaning pad 40, ensuring efficient wiping.

[0039] In Example 4, based on Example 3, the protective baffle 26 has a connecting groove 31. The adjusting block 30 passes through the connecting groove 31 and is fixedly connected to the mounting base 34. Two electromagnetic plates 35 are fixedly installed on one outer wall of the mounting base 34. Multiple limiting iron plates 44 are fixedly installed on the outer walls of the first limiting belt 12 and the second limiting belt 13. The two electromagnetic plates 35 are magnetically attached to the limiting iron plates 44 on the first limiting belt 12 and the second limiting belt 13, respectively. The adjusting block 30 is fixedly installed with a receiver 32, which is electrically connected to the central control center 5.

[0040] In this invention, the electromagnetic connection period of the two electromagnetic plates 35 is controlled by the central control center 5 and the receiver 32, thereby selecting the period of electromagnetic connection with the limiting iron plate 44. When the limiting belt 12 and the limiting belt 2 13 are running, the segmented magnetic attraction of the two electromagnetic plates 35 drives the adjusting block 30 to move synchronously, ensuring that the cleaning cotton pad 40 can move back and forth on the infrared ranging probe 43 for cleaning.

[0041] The working principle and usage process of this invention: In this invention, when coal is transported on conveyor belt 4, the central control center 5 drives reciprocating motor 15 and reciprocating motor 16, which in turn control guide plates 7 and 8 to swing back and forth via limit belts 12 and 13, respectively. This causes the coal blocks on conveyor belt 4 to shift obliquely, resulting in multiple coal blocks being arranged in an alternating pattern. This prevents some coal blocks from accumulating and becoming too dense, which would affect the flow distribution effect of the airflow actuator. Simultaneously, the two systems can control the alternating swing of guide plates 7 and 8, allowing them to briefly close the passageway, similarly achieving the alternating arrangement of multiple rows of coal blocks. The staggered forward movement achieves a mesh-like distribution, uniformly distributing the coal on conveyor belt 4. Simultaneously, the reciprocating motion of guide plates 7 and 8 allows the cleaning brush 17 below to continuously clean the outer surface of conveyor belt 4, preventing coal from easily adhering to slag on the conveyor belt 4 after being subjected to force, thus avoiding confusion in the density detection system and further ensuring uniform coal distribution. In this invention, the uniformly distributed coal undergoes infrared detection below the coal gangue scanner 18 to identify coal and gangue. Airflow generated through the air valve hole 20 blows the falling gangue into the gangue channel 25, while the coal falls normally into the coal channel 24. In this invention, [the following is a continuation of the previous sentence, but the context is unclear]. Larger, non-standard coal pieces may be conveyed onto conveyor belt 4, potentially getting stuck between the two rotating rods 6. In this invention, an infrared ranging probe 43 is installed to monitor the distance between the probe and conveyor belt 4 in real time. If an object larger than the distance between the two rotating rods 6 is detected below the infrared ranging probe 43, it indicates that coal is stuck. The signal is then transmitted to the central control center 5 to notify staff to clear the obstruction, preventing coal accumulation and ensuring proper coal distribution density. Furthermore, after prolonged operation, the infrared ranging probe 43 may accumulate a significant amount of coal dust, affecting its detection capabilities. This invention addresses this by installing cleaning cotton pads 40... The infrared ranging probe 43 is wiped by sliding, thereby reducing the adhering coal ash and ensuring the detection rate. At the same time, the limit plate 37 can be turned out by moving the card block 42 by personnel. The new cleaning cotton pad 40 can be replaced by tearing off the Velcro 39, ensuring the wiping efficiency. In this invention, the electromagnetic connection period of the two electromagnetic plates 35 is controlled by the central control center 5 and the receiver 32, thereby selecting the period of electromagnetic connection with the limit iron plate 44. When the limit belt 12 and the limit belt 2 13 are running, the segmented magnetic attraction of the two electromagnetic plates 35 drives the adjusting block 30 to move synchronously, ensuring that the cleaning cotton pad 40 can move back and forth on the infrared ranging probe 43 for cleaning.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic sorting device for coal mines, comprising a frame (1), characterized in that: The top two outer walls of the frame (1) are fixedly connected to protective frames (2), the inner walls of the protective frames (2) are fixedly connected to electrically controlled conveyor frames (3), the outer walls of the electrically controlled conveyor frames (3) are rotatably connected to conveyor belts (4), the outer walls of one side of the frame (1) are fixedly connected to a central control center (5), the top outer walls of the protective frames (2) are fixedly installed with mounting frames (9), the bottom outer walls of the mounting frames (9) are rotatably connected to multiple rotating rods (6), the multiple rotating rods (6) are arranged in an array directly above the conveyor belts (4), the outer walls of one side of the multiple rotating rods (6) are respectively fixedly connected to guide plates one (7) and guide plates two (8), the guide plates one (7) and guide plates two (8) are respectively fixedly connected to guide plates one (7) and guide plates two (8). Plates 2 (8) are staggered. Both ends of the bottom outer wall of the mounting frame (9) are rotatably connected to extension rods (14). The extension rods (14) on both sides are respectively equipped with connecting pulley 1 (10) and connecting pulley 2 (11). The outer walls of all connecting pulley 1 (10) are meshed and rotated by the same limiting belt 1 (12). The outer walls of all connecting pulley 2 (11) are meshed and rotated by the same limiting belt 2 (13). A protective baffle (26) is fixedly installed 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). An infrared ranging probe (4) is fixedly connected to the bottom outer wall of the mounting plate (27). 3) An extension plate (33) is slidably connected to the outer wall of the mounting plate (27). A 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 groove (28). A limiting base plate (37) is provided on the bottom outer wall of the extension plate (33). A Velcro first (38) is fixedly connected to the top outer wall of the limiting base plate (37). A Velcro second (39) is pasted on the top outer wall of the Velcro first (38). A cleaning cotton pad (40) is fixedly connected to the top outer wall of the Velcro second (39). The top outer wall of the cleaning cotton pad (40) is connected to the red... The bottom outer wall of the external ranging probe (43) is attached to the protective baffle (26) with a connecting groove (31). The adjusting block (30) passes through the connecting groove (31) and is fixedly connected to the mounting base (34). Two electromagnetic plates (35) are fixedly installed on one side of the outer wall of the mounting base (34). Multiple limiting iron plates (44) are fixedly installed on the outer walls of the first limiting belt (12) and the second limiting belt (13). The two electromagnetic plates (35) are magnetically attached to the limiting iron plates (44) on the first limiting belt (12) and the second limiting belt (13), respectively. The adjusting block (30) is fixedly installed with a receiver (32). The receiver (32) is electrically connected to the central control center (5).

2. The automatic sorting and diversion device for coal mines according to claim 1, characterized in that: A connecting pulley 1 (10) is fixedly connected to the outer wall of the rotating rod (6) that fixes the first guide plate (7), and a connecting pulley 2 (11) is fixedly connected to the outer wall of the rotating rod (6) that fixes the second guide plate (8). 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 sorting and separation according to claim 1, characterized in that: The top outer wall of the mounting bracket (9) is fixedly connected to a reciprocating motor one (15) and a reciprocating motor two (16). The shaft of the reciprocating motor one (15) is fixedly connected to the rotating rod (6) linked to the limiting belt one (12). The shaft of the reciprocating motor two (16) is fixedly connected to the extension rod (14) linked to the limiting belt two (13). The reciprocating motor one (15) and the reciprocating motor two (16) are both electrically connected to the central control center (5). The bottom outer walls of the guide plate one (7) and the guide plate two (8) are both fixedly connected to cleaning brushes (17). The cleaning brushes (17) are in contact with the top outer wall of the conveyor belt (4).

4. The automatic sorting and diversion device for coal mines according to claim 1, characterized in that: The top outer wall of the protective frame (2) is fixedly connected to a coal gangue scanner (18) directly above the conveyor belt (4). A jet frame (19) is fixedly installed on one side outer wall of the frame (1). Multiple air valve holes (20) are arrayed on one side outer wall of the jet frame (19). A support 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 support plate (21). The output pipe of the air compressor (22) is connected to the inner cavity of the jet frame (19). The air compressor (22) is electrically connected to the central control center (5).

5. The automatic sorting and diversion device for coal mines according to claim 4, characterized in that: Some of the outer walls of the frame (1) are fixedly installed with diversion guide rails (23), which are divided into coal channels (24) and gangue channels (25).

6. The automatic sorting and diversion device for coal mines according to claim 5, characterized in that: The limiting base plate (37) is fixedly installed with a connecting bearing (36). The axis of the electromagnetic plate (35) is rotatably connected to the bottom outer wall of the extension plate (33). A locking block (42) is fixedly connected to one side outer wall of the limiting base plate (37). A slot (41) is opened on one side outer wall of the extension plate (33). The locking block (42) is engaged with the slot (41).

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