Self-adaptive moisture sampling and sample preparation system

Abstract

The invention relates to the technical field of sampling, and discloses a moisture self-adaptive sampling and sample preparation system which comprises a first conveying belt and further comprises a second conveying belt arranged above the first conveying belt, and two round rollers are installed in the second conveying belt; the cleaning assembly is mounted on the second conveying belt, and the cleaning assembly is used for cleaning materials adhered to the second conveying belt; the supporting assembly is arranged on the first conveying belt and the second conveying belt, and the supporting assembly is used for supporting the second conveying belt; and the driving assembly is arranged on the side face of the second conveying belt, and the driving assembly is used for driving the second conveying belt to rotate. The rotation direction of the second conveying belt can be automatically controlled according to the water content of sampled and sample-prepared coal on the second conveying belt, so that the coal with the high water content is conveyed back to the first conveying belt, the situation that the crushing box is blocked during sampling and sample preparation is avoided, and then the using effect of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling, and particularly to a moisture self-adaptive sampling and sample preparation system. Background Art

[0002] Coal sampling and sample preparation are important links in coal quality monitoring and analysis, mainly used to obtain coal samples for various laboratory analyses, such as the determination of components such as moisture, volatile matter, ash, and fixed carbon, in order to reflect the overall quality characteristics of coal.

[0003] The moisture of incoming coal or ore materials is often unstable. Especially when the moisture is too high, the sampled materials are prone to adhesion and caking after sampling, which will cause blockage of the crusher in the sampling system. The blockage will not only prevent the crusher from working properly, but may further cause a blockage failure of the entire system, affecting the accuracy and efficiency of the sampling process, and may even lead to equipment damage or shutdown, increasing maintenance costs and affecting the stability and continuity of production. Therefore, it is urgent to design a moisture self-adaptive sampling and sample preparation system. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to propose a moisture self-adaptive sampling and sample preparation system.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A moisture self-adaptive sampling and sample preparation system, including a first conveyor belt, further including: A second conveyor belt, the second conveyor belt is arranged above the first conveyor belt, and two round rollers are installed inside the second conveyor belt. A plurality of scraping plates are evenly fixed on the surface of the second conveyor belt, and the scraping plates are T-shaped; A crushing box, the crushing box is installed on the top of the first conveyor belt, and the crushing box is located below the end of the second conveyor belt; A cleaning component, the cleaning component is installed on the second conveyor belt, and the cleaning component is used to clean the materials adhered to the second conveyor belt; A supporting component, the supporting component is arranged on the first conveyor belt and the second conveyor belt, and the supporting component is used to support the second conveyor belt; A driving component, the driving component is arranged on the side of the second conveyor belt, and the driving component is used to drive the second conveyor belt to rotate.

[0006] As a further technical solution of the present invention, the driving assembly includes: a first rotating rod, the first rotating rod is rotatably installed on the side of the second conveyor belt, the end face of the first rotating rod is fixedly installed at the center of the end face of the corresponding round roller through a connecting shaft, a first gear and a second gear are fixedly sleeved on the surface of the first rotating rod, and a shaft rod is also fixedly installed on the side of the second conveyor belt. A third gear is rotatably installed at the end of the shaft rod, the third gear meshes with the second gear, and the width of the third gear is twice the width of the second gear.

[0007] As a further technical solution of the present invention, a second rotating rod is also rotatably installed on the side of the second conveyor belt. A fourth gear is slidably sleeved on the second rotating rod through a spline. A fixed disk is fixedly sleeved on the surface of the second rotating rod. A straight spring is sleeved on the surface of the second rotating rod, and both ends of the straight spring are respectively rotatably abutted between the fourth gear and the fixed disk. A plurality of first limiting rods evenly distributed in a ring shape are fixed on the side of the fixed disk, and the first limiting rods are used to limit the stroke of the fourth gear.

[0008] As a further technical solution of the present invention, a circular ring is fixedly installed on the side of the fourth gear close to the fixed disk. An annular groove is opened on the surface of the circular ring, and an opening groove communicating with the annular groove is opened on the end face of the circular ring. An L-shaped rod is fixedly installed on the side of the fixed disk close to the fourth gear. The vertical side of the L-shaped rod is adapted to the opening groove, and the vertical side of the L-shaped rod slides between the annular groove.

[0009] As a further technical solution of the present invention, an electromagnet is fixedly sleeved on the surface of the second rotating rod, and a first magnet is fixedly installed on the side of the fourth gear close to the electromagnet. When the electromagnet is energized, it repels the first magnet. The first magnet is slidably sleeved on the surface of the second rotating rod. A plurality of second limiting rods are annularly fixed on the end face of the electromagnet, and the second limiting rods are used to limit the stroke of the first magnet.

[0010] As a further technical solution of the present invention, a motor bracket is installed on the side of the second conveyor belt. A second motor is installed on the motor bracket, and the output shaft of the second motor is installed at the center of the end face of the second rotating rod. When the fourth gear contacts the first gear and the third gear, the fourth gear meshes with the first gear and the third gear. Electrodes are installed on both corresponding sides inside the second conveyor belt, and both electrodes are electrically connected to the electromagnet.

[0011] As a further technical solution of the present invention, the cleaning assembly includes: a brush roller, the brush roller is rotatably installed on the second conveyor belt. A first pulley and a rotating shaft are rotatably installed on the side of the second conveyor belt, and the end face of the rotating shaft is fixedly installed at the center of the end face of the corresponding round roller through a connecting shaft. The first pulley is fixedly installed at the center of the end face of the brush roller through a connecting shaft. A one-way bearing is sleeved on the surface of the rotating shaft, a second pulley is fixedly sleeved on the outer ring of the one-way bearing, and a belt is sleeved on the surfaces of the first pulley and the second pulley.

[0012] As a further technical solution of the present invention, the support assembly includes: L-shaped frames. There are two L-shaped frames, and the two L-shaped frames are fixedly installed on the top of the first conveyor belt and are symmetrically arranged. The horizontal side of the L-shaped frame is rotatably installed on the vertical side, and the second conveyor belt is fixedly installed between the horizontal sides of the two L-shaped frames. A first motor is installed on the corresponding vertical side of the L-shaped frame, and the output shaft of the first motor is installed at the end of the corresponding horizontal side of the L-shaped frame.

[0013] As a further technical solution of the present invention, symmetrically arranged side plates are vertically fixed on the top of the first conveyor belt. Arc-shaped grooves are provided on the opposing sides of the two side plates, and sliding columns are fixedly installed on the two sides away from the second conveyor belt. The end parts of the two sliding columns are respectively slidably installed inside the two arc-shaped grooves.

[0014] The beneficial effects of the present invention are as follows: First, in the present invention, through the settings of the cleaning assembly, the support assembly and the driving assembly, the rotation direction of the second conveyor belt can be automatically controlled according to the moisture content of the coal sampled on the second conveyor belt, so as to return the coal with a higher moisture content to the first conveyor belt, avoiding the situation that the crushing box is blocked during sampling, and thus improving the use effect of the equipment. Second, in the present invention, through the settings of the cleaning assembly and the driving assembly, due to the limiting effect of the L-shaped rod on the ring and the fourth gear, even when the electrode no longer contacts the coal with a high moisture content, the second conveyor belt will still rotate forward for a while, ensuring that the coal with a higher moisture content is completely returned to the first conveyor belt. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a moisture adaptive sampling and preparation system proposed by the present invention; Figure 2 is a schematic side view structural diagram of a moisture adaptive sampling and preparation system proposed by the present invention; Figure 3 is Figure 2 an enlarged schematic diagram of part A in Figure 4 is a schematic structural diagram of the second conveyor belt of a moisture adaptive sampling and preparation system proposed by the present invention; Figure 5 is Figure 4 an enlarged schematic diagram of part B in Figure 6 is a schematic structural diagram of the driving structure of the second conveyor belt of a moisture adaptive sampling and preparation system proposed by the present invention; Figure 7 is Figure 6 an enlarged schematic diagram of part C in Figure 8 is a schematic structural diagram of the four gears of a moisture adaptive sampling and preparation system proposed by the present invention; Figure 9 Schematic diagram of a ring and its connection structure of a moisture adaptive sampling and sample preparation system proposed by the present invention; Figure 10 Schematic cross-sectional structure diagram of a second conveyor belt of a moisture adaptive sampling and sample preparation system proposed by the present invention.

[0016] In the figure: 1. First conveyor belt; 2. Second conveyor belt; 3. L-shaped frame; 4. Side plate; 5. Arc groove; 6. Slide post; 7. Crushing box; 8. First motor; 9. Second motor; 10. Brush roller; 11. Belt; 12. First pulley; 13. Second pulley; 14. One-way bearing; 15. Rotating shaft; 16. Electrode; 17. First rotating rod; 18. First gear; 19. Second gear; 20. Third gear; 21. Second rotating rod; 22. Fixed disk; 23. First limiting rod; 24. Straight spring; 25. Fourth gear; 26. Electromagnet; 27. Second limiting rod; 28. First magnet; 29. Shaft rod; 30. Ring; 31. Annular groove; 32. Open slot; 33. L-shaped rod; 34. Round roller; 35. Scraper. Specific embodiments

[0017] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to the attached Figure 1 - attached Figure 10 , a moisture adaptive sampling and sample preparation system, including a first conveyor belt 1, further including: a second conveyor belt 2, a crushing box 7, a cleaning component, a support component and a driving component. The second conveyor belt 2 is arranged above the first conveyor belt 1, and two round rollers 34 are installed inside the second conveyor belt 2. A plurality of scrapers 35 are evenly fixed on the surface of the second conveyor belt 2, and the scrapers 35 are T-shaped. The crushing box 7 is installed on the top of the first conveyor belt 1 and is located below the end of the second conveyor belt 2. The cleaning component is installed on the second conveyor belt 2 and is used to clean the materials adhered to the second conveyor belt 2. The support component is arranged on the first conveyor belt 1 and the second conveyor belt 2 and is used to support the second conveyor belt 2. The driving component is arranged on the side of the second conveyor belt 2 and is used to drive the second conveyor belt 2 to rotate; As described above, the rotation of the first rotating rod 17 drives the circular roller 34 and the second conveyor belt 2 to rotate. The rotation of the second conveyor belt 2 drives the scraper 35 to rotate, so that the coal above the first conveyor belt 1 can be scraped onto the second conveyor belt 2 by the scraper 35.

[0020] Please refer to the appendix Figure 1 - appendix Figure 10 In a preferred embodiment, the drive assembly includes: a first rotating rod 17, the first rotating rod 17 is rotatably installed on the side of the second conveyor belt 2, the end face of the first rotating rod 17 is fixedly installed at the center of the end face of the corresponding circular roller 34 through a connecting shaft, the surface of the first rotating rod 17 is fixedly sleeved with a first gear 18 and a second gear 19, and a shaft rod 29 is also fixedly installed on the side of the second conveyor belt 2. A third gear 20 is rotatably installed at the end of the shaft rod 29. The third gear 20 meshes with the second gear 19, and the width of the third gear 20 is twice the width of the second gear 19. A second rotating rod 21 is also rotatably installed on the side of the second conveyor belt 2. A fourth gear 25 is slidably sleeved on the second rotating rod 21 through a spline. A fixed disk 22 is fixedly sleeved on the surface of the second rotating rod 21. A straight spring 24 is sleeved on the surface of the second rotating rod 21, and the two ends of the straight spring 24 are respectively rotatably abutted between the fourth gear 25 and the fixed disk 22. A plurality of first limiting rods 23 are fixedly arranged on the side of the fixed disk 22 in a uniformly distributed annular shape, and the first limiting rods 23 are used to limit the stroke of the fourth gear 25. An annular ring 30 is fixedly installed on the side of the fourth gear 25 close to the fixed disk 22. An annular groove 31 is formed on the surface of the annular ring 30, and an opening groove 32 communicating with the annular groove 31 is formed on the end face of the annular ring 30. An L-shaped rod 33 is fixedly installed on the side of the fixed disk 22 close to the fourth gear 25. The vertical side of the L-shaped rod 33 is adapted to the opening groove 32, and the vertical side of the L-shaped rod 33 slides between the annular groove 31. An electromagnet 26 is fixedly sleeved on the surface of the second rotating rod 21, and a first magnet 28 is fixedly installed on the side of the fourth gear 25 close to the electromagnet 26. When the electromagnet 26 is energized, it repels the first magnet 28. The first magnet 28 is slidably sleeved on the surface of the second rotating rod 21. A plurality of second limiting rods 27 are annularly fixed on the end face of the electromagnet 26, and the second limiting rods 27 are used to limit the stroke of the first magnet 28. A motor bracket is installed on the side of the second conveyor belt 2, and a second motor 9 is installed on the motor bracket. The output shaft of the second motor 9 is installed at the center of the end face of the second rotating rod 21. When the fourth gear 25 contacts the first gear 18 and the third gear 20, the fourth gear 25 meshes with the first gear 18 and the third gear 20. Electrodes 16 are installed on both corresponding sides inside the second conveyor belt 2, and both electrodes 16 are electrically connected to the electromagnet 26; Preferably, the rotation direction of the second conveyor belt 2 can be automatically controlled according to the moisture content of the coal sampled and prepared on the second conveyor belt 2, so as to return the coal with a higher moisture content to the first conveyor belt 1, avoiding the situation that the crushing box 7 is blocked during sampling and preparation.

[0021] Please refer to the attached Figure 1 - Attachment Figure 5 In a preferred embodiment, the cleaning component includes: a brush roll 10, which is rotatably installed on the second conveyor belt 2. A first pulley 12 and a rotating shaft 15 are rotatably installed on the side of the second conveyor belt 2. The end face of the rotating shaft 15 is fixedly installed at the center of the end face of the corresponding round roller 34 through a connecting shaft, and the side of the first pulley 12 is fixedly installed at the center of the end face of the brush roll 10 through a connecting shaft. A one-way bearing 14 is sleeved on the surface of the rotating shaft 15, and a second pulley 13 is fixedly sleeved on the outer ring of the one-way bearing 14. A belt 11 is sleeved on the surfaces of the first pulley 12 and the second pulley 13; Furthermore, the rotation of the round roller 34 drives the rotation of the second pulley 13 through the one-way bearing 14. The rotation of the second pulley 13 drives the rotation of the first pulley 12 and the belt 11, and the rotation of the first pulley 12 drives the rotation of the brush roll 10, so as to completely send the coal with a higher moisture content back onto the first conveyor belt 1.

[0022] Please refer to the attached Figure 1 - Attachment Figure 4 In a preferred embodiment, the support component includes: two L-shaped frames 3, which are fixedly installed on the top of the first conveyor belt 1 and are symmetrically arranged. The horizontal side of the L-shaped frame 3 is rotatably installed on the vertical side, and the second conveyor belt 2 is fixedly installed between the horizontal sides of the two L-shaped frames 3. A first motor 8 is installed on the corresponding vertical side of the L-shaped frame 3, and the output shaft of the first motor 8 is installed at the end of the corresponding horizontal side of the L-shaped frame 3. Two symmetrically arranged side plates 4 are vertically fixed on the top of the first conveyor belt 1. Arc-shaped grooves 5 are opened on the opposing sides of the two side plates 4, and sliding columns 6 are fixedly installed on the two far sides of the second conveyor belt 2. The end parts of the two sliding columns 6 are respectively slidably installed inside the two arc-shaped grooves 5; Specifically, it is used to support the second conveyor belt 2 and adjust the angle of the second conveyor belt 2, so as to perform sampling on the coal conveyed on the first conveyor belt 1.

[0023] The working principle of the present invention: When sampling is required for the coal conveyed on the first conveyor belt 1, the angle of the second conveyor belt 2 is adjusted by the first motor 8, so that the scraper 35 at the end of the second conveyor belt 2 can move downward to contact the coal. Then, the second motor 9 is started to drive the second rotating rod 21 to rotate. The rotation of the second rotating rod 21 drives the rotation of the fourth gear 25 and the ring 30. The rotation of the fourth gear 25 drives the rotation of the first gear 18. The rotation of the first gear 18 drives the rotation of the first rotating rod 17. The rotation of the first rotating rod 17 drives the rotation of the round roller 34 and the second conveyor belt 2. The rotation of the second conveyor belt 2 drives the rotation of the scraper 35. Thus, the coal above the first conveyor belt 1 can be scraped onto the second conveyor belt 2 by the scraper 35. It should be noted that the scraper 35 is arc-shaped; After the coal is scraped and lifted to the second conveyor belt 2 by the scraper 35, the two electrodes 16 will detect the moisture content of the coal. If the moisture content of the coal is low, the current passing through the electromagnet 26 is small. Further, the repulsive force between the electromagnet 26 and the first magnet 28 is small, so the first magnet 28 and the fourth gear 25 do not move or move a little, making the fourth gear 25 always in contact with the first gear 18 and not in contact with the third gear 20. Then the conveyor belt rotates reversely all the time to convey the sampled coal to the inside of the crushing box 7 through the second conveyor belt 2 for sample preparation. At this time, the rotation of the round roller 34 will not drive the second pulley 13 to rotate through the one-way bearing 14; If the moisture content of the coal is high, the current passing through the electromagnet 26 is large. Further, the repulsive force between the electromagnet 26 and the first magnet 28 is large. The first magnet 28, the ring 30 and the fourth gear 25 will move a certain distance. The movement of the rotating ring 30 will make the vertical side of the L-shaped rod 33 enter the annular groove 31 through the opening groove 32 to realize the limit of the ring 30 and the fourth gear 25, so that the fourth gear 25 is in contact with the third gear 20 and no longer in contact with the first gear 18. At this time, the rotation of the fourth gear 25 drives the third gear 20 to rotate, the rotation of the third gear 20 drives the second gear 19 to rotate forward, and the rotation of the second gear 19 drives the round roller 34 and the second conveyor belt 2 to rotate forward through the first rotating rod 17. The forward rotation of the second conveyor belt 2 can send the coal lifted to the second conveyor belt 2 back to the first conveyor belt 1. It should be noted that due to the limiting effect of the L-shaped rod 33 on the ring 30 and the fourth gear 25, even when the electrode 16 is no longer in contact with the coal with high moisture content, the second conveyor belt 2 will still rotate forward for a while, ensuring that the coal with high moisture content is completely sent back to the first conveyor belt 1. At this time, the rotation of the round roller 34 will drive the second pulley 13 to rotate through the one-way bearing 14, the rotation of the second pulley 13 drives the first pulley 12 and the belt 11 to rotate, and the rotation of the first pulley 12 drives the brush roller 10 to rotate to realize the complete return of the coal with high moisture content to the first conveyor belt 1; Then, after the coal with high moisture content is sent back to the first conveyor belt 1, the electromagnet 26 no longer generates magnetism, and the elastic force generated by the straight spring 24 will reset the fourth gear 25 to contact the first gear 18 again and no longer mesh with the third gear 20. Further, the scraper 35 can lift the coal on the first conveyor belt 1 again; In summary, by repeating the above process in turn, the sampling and sample preparation of coal can be carried out, and the coal with high moisture content can be automatically sent back during the sampling and sample preparation, avoiding the situation that the crushing box 7 is blocked during the sampling and sample preparation, ensuring the consistency of the sampling and sample preparation of coal, and thus improving the use effect of the equipment.

[0024] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A moisture adaptive sampling system, comprising a first conveyor belt (1), characterized in that: Also includes: A second conveyor belt (2), the second conveyor belt (2) being arranged above the first conveyor belt (1), and having two round rollers (34) installed inside the second conveyor belt (2), and having a plurality of scrapers (35) evenly fixed on the surface of the second conveyor belt (2), and the scrapers (35) being T-shaped; A crushing box (7), wherein the crushing box (7) is installed on the top of the first conveyor belt (1), and the crushing box (7) is located below the end of the second conveyor belt (2); A cleaning component, the cleaning component is installed on the second conveyor belt (2), and the cleaning component is used to clean materials adhered to the second conveyor belt (2); A support assembly, wherein the support assembly is arranged on the first conveyor belt (1) and the second conveyor belt (2), and the support assembly is used to support the second conveyor belt (2); A drive assembly, wherein the drive assembly is arranged on a side of the second conveyor belt (2), and the drive assembly is used to drive the second conveyor belt (2) to rotate.

2. A moisture adaptive sampling system according to claim 1, characterized in that: The driving assembly comprises: a first rotating rod (17), the first rotating rod (17) is rotatably mounted on the side of the second conveyor belt (2), the end face of the first rotating rod (17) is fixedly mounted on the center of the end face of the corresponding round roller (34) through a connecting shaft, a first gear (18) and a second gear (19) are fixedly sleeved on the surface of the first rotating rod (17), and a shaft (29) is also fixedly mounted on the side of the second conveyor belt (2), a third gear (20) is rotatably mounted on the end of the shaft (29), the third gear (20) is meshed with the second gear (19), and the width of the third gear (20) is twice the width of the second gear (19).

3. A moisture adaptive sampling system according to claim 2, characterized in that: A second rotating rod (21) is also rotatably mounted on the side of the second conveyor belt (2), a fourth gear (25) is slidably sleeved on the second rotating rod (21) via a spline, and a fixed plate (22) is fixedly sleeved on the surface of the second rotating rod (21), a straight spring (24) is sleeved on the surface of the second rotating rod (21), and two ends of the straight spring (24) are respectively rotatably abutted between the fourth gear (25) and the fixed plate (22), and a plurality of first limiting rods (23) evenly distributed in an annular shape are fixed on the side of the fixed plate (22), and the first limiting rods (23) are used to limit the stroke of the fourth gear (25).

4. A moisture adaptive sampling system according to claim 3, characterized in that: A circular ring (30) is fixedly mounted on the side of the fourth gear (25) close to the fixed plate (22), a circular ring (30) having a circular groove (31) formed on its surface, and an open groove (32) communicating with the circular groove (31) formed on the end surface of the circular ring (30). An L-shaped rod (33) is fixedly mounted on the side of the fixed plate (22) close to the fourth gear (25), a vertical side of the L-shaped rod (33) is matched with the open groove (32), and the vertical side of the L-shaped rod (33) slides between the circular groove (31).

5. A moisture adaptive sampling system according to claim 4, characterized in that: An electromagnet (26) is fixedly sleeved on the surface of the second rotating rod (21), and a first magnet (28) is fixedly mounted on the side of the fourth gear (25) close to the electromagnet (26). When the electromagnet (26) is energized, the electromagnet (26) and the first magnet (28) repel each other. The first magnet (28) is slidably sleeved on the surface of the second rotating rod (21). A plurality of second limiting rods (27) are fixed in an annular shape on the end surface of the electromagnet (26), and the second limiting rods (27) are used to limit the travel of the first magnet (28).

6. A moisture adaptive sampling system according to claim 5, characterized in that: A motor bracket is installed on the side of the second conveyor belt (2), and a second motor (9) is installed on the motor bracket. The output shaft of the second motor (9) is installed at the center of the end face of the second rotating rod (21). When the fourth gear (25) contacts the first gear (18) and the third gear (20), the fourth gear (25) meshes with the first gear (18) and the third gear (20). Electrodes (16) are installed on the corresponding two sides inside the second conveyor belt (2), and the two electrodes (16) are electrically connected to the electromagnet (26).

7. A moisture adaptive sampling system according to claim 6, characterized in that: The cleaning assembly comprises: a brush roller (10), the brush roller (10) being rotatably mounted on the second conveyor belt (2), a first pulley (12) and a rotating shaft (15) being rotatably mounted on the side of the second conveyor belt (2), and an end face of the rotating shaft (15) being fixedly mounted at the center of the end face of a corresponding round roller (34) via a connecting shaft, a side face of the first pulley (12) being fixedly mounted at the center of the end face of the brush roller (10) via a connecting shaft, a one-way bearing (14) being sleeved on the surface of the rotating shaft (15), a second pulley (13) being fixedly sleeved on the outer ring of the one-way bearing (14), and belts (11) being sleeved on the surfaces of the first pulley (12) and the second pulley (13).

8. The water content self-adaptive sampling system according to claim 7, characterized in that: The support assembly comprises: an L-shaped frame (3), wherein there are two L-shaped frames (3), the two L-shaped frames (3) are fixedly mounted on the top of the first conveyor belt (1), and the two L-shaped frames (3) are symmetrically arranged, the horizontal side of the L-shaped frame (3) is rotatably mounted on the vertical side, and the second conveyor belt (2) is fixedly mounted between the horizontal sides of the two L-shaped frames (3), the corresponding vertical side of the L-shaped frame (3) is mounted with a first motor (8), and the output shaft of the first motor (8) is mounted on the end of the corresponding horizontal side of the L-shaped frame (3).

9. The water content self-adaptive sampling system according to claim 8, characterized in that: A symmetrically arranged side plate (4) is vertically fixed on the top of the first conveyor belt (1), and arc grooves (5) are provided on the opposite sides of the two side plates (4), and sliding columns (6) are fixedly installed on the two sides away from the second conveyor belt (2), and the ends of the two sliding columns (6) are respectively slidably installed in the two arc grooves (5).

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