Self-operating header cleaning mechanism and header

Abstract

The invention relates to the technical field of agricultural equipment, in particular to a self-operating header cleaning mechanism and a header. The self-operating header cleaning mechanism comprises a gearbox, a connecting arm is fixedly mounted at the bottom of the gearbox, a cut-off tool is rotatably mounted on the connecting arm, a mounting plate is fixedly mounted on the front side wall of the gearbox, and the cut-off tool and the mounting plate are horizontally arranged; a harvesting assembly is mounted on the mounting plate, a cleaning assembly is arranged on the harvesting assembly, a fine adjustment mechanism is arranged on the cleaning assembly, and the harvesting assembly and the cleaning assembly are synchronously driven. The chain saw which synchronously works is arranged on the outer side of the stem pulling roller, so that the chain saw can cut grains wound on the stem pulling roller while the stem pulling roller works, the stem pulling roller can be cleaned, and the situation that the grains are damaged when the stem pulling roller works is effectively avoided. The condition that the stem pulling roller cannot work or the working efficiency is reduced due to the fact that grains are wound on the roller body is avoided, and normal working of the stem pulling roller is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, in particular to a self-operating cutting platform cleaning mechanism and a cutting platform. Background Art

[0002] Grain harvesters can complete operations such as picking ears, stacking, cutting straw, and returning stalks to the field for mature grains, and play an extremely important role in grain harvesting operations. Grain harvesters mainly include the machine body, cutting platform, ear lifting mechanism, stem pulling and debris removal mechanism, peeling device, parabolic structure, grain box and crushing mechanism. The machine body is driven and provides power for the overall operation of the harvester; the cutting platform mainly includes the grain dividing head, grain pulling chain, ear picking plate, stem pulling roller and conveying auger.

[0003] When the harvester is in operation, the grain stalks enter between adjacent dividing heads, and the dividing heads divide the grains into rows. As the grain harvester moves, and with the assistance of the grain-pulling chain, the grain stalks are transported between adjacent dividing heads. During the transportation process, the stem-pulling rollers under the dividing heads rotate, and the two adjacent stem-pulling rollers turn in opposite directions to drag the grain stalks, while the grain stalks are separated from the ears in cooperation with the ear-pulling plate. The ears between adjacent dividing heads are then transported to the auger through the rotation of the grain-pulling chain.

[0004] With regard to the above-mentioned related technologies, during the actual use of the grain harvester, when the cutting table part processes the grain stalks for a long time, due to the weeds growing in the grain field, a large amount of weeds are easily entangled on the stem pulling roller, and the stem pulling roller is unable to drag the grain stalks, resulting in poor feeding of the grain stalks and causing the grain stalks to be pushed down. It is necessary to stop the machine regularly to clean the weeds, and the pushed-down grains need to be picked, which has an adverse effect on the grain harvesting efficiency. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a self-operating cutting platform cleaning mechanism and a cutting platform.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-operating harvesting platform cleaning mechanism, comprising a gear box, a connecting arm fixedly installed at the bottom of the gear box, a cutting knife rotatably installed on the connecting arm, a mounting plate fixedly installed on the front side wall of the gear box, the cutting knife and the mounting plate are horizontally arranged, a harvesting assembly is installed on the mounting plate, a cleaning assembly is arranged on the harvesting assembly, a fine-tuning mechanism is arranged on the cleaning assembly, and the harvesting assembly and the cleaning assembly are synchronously driven; The gearbox is used to drive the operation of the cutting knife. The mounting plate is in a "V"-shaped structure. A driving gearbox is fixedly installed at the center of the rear side wall of the gearbox. A driving gear is rotatably installed in the driving gearbox. A main gear set is rotatably installed in the driving gearbox. The main gear set is meshed with the driving gear. On both side walls of the driving gearbox where the main gear set is located, a first gear shaft is rotatably installed. A gear meshed with the main gear set is installed on the first gear shaft. One of the two groups of first gear shafts extends into the connecting arm and is meshed with the gear in the connecting arm. A second gear shaft is rotatably installed on the front side wall of the gearbox. A gear meshed with the main gear set is installed on the second gear shaft.

[0007] As a preferred technical solution of the present invention, the harvesting assembly includes a sprocket set, a reel chain, a hydraulic rod, a fixing hoop and a pulling roller. Hydraulic rods are fixedly installed on both side walls of the mounting plate. The number of hydraulic rods on the same side of the mounting plate is two. A fixing hoop is fixedly installed at the telescopic end of the hydraulic rod. A pulling roller is rotatably installed on the fixing hoop. The rear end of the pulling roller is connected to the second gear shaft. A universal joint is arranged at the connection between the second gear shaft and the pulling roller. A sprocket set is rotatably installed on the top of the mounting plate. The number of sprocket sets is two and they correspond to the pulling rollers in sequence. The number of sprockets in a single sprocket set is three and they are arranged in a triangular structure. A reel chain is sleeved on the sprocket set. One of the sprockets in a single sprocket set is fixedly connected to the first gear shaft. A limiting baffle is fixedly installed on the top of the mounting plate. The limiting baffle is located inside the reel chain. The cutting knife is located below the space between the two pulling rollers.

[0008] As a preferred technical solution of the present invention, the universal joint includes a first U-shaped buckle, a connecting column, a first cross shaft, a second U-shaped buckle, a third U-shaped buckle, a fourth U-shaped buckle and a second cross shaft. A first U-shaped buckle is fixedly installed at the free end of the second gear shaft. A first cross shaft is rotatably installed on the first U-shaped buckle. The other set of shaft bodies on the first cross shaft is rotatably connected to the third U-shaped buckle. A connecting column is fixedly installed on the front side of the third U-shaped buckle. A fourth U-shaped buckle is fixedly installed at the free end of the connecting column. A second cross shaft is rotatably installed on the fourth U-shaped buckle. The other set of shaft bodies on the fourth U-shaped buckle is rotatably connected to the second U-shaped buckle. The second U-shaped buckle is fixedly connected to the rear end of the pulling roller.

[0009] As a preferred technical solution of the present invention, the cleaning component includes a mounting shell, a third sprocket and a chain saw. The corresponding side walls of the fixing hoop are provided with a mounting shell, which is located outside the stem-pulling roller. The inner top and bottom of the mounting shell are rotatably installed with third sprockets. The number of the third sprockets is two groups. A chain saw is sleeved on the third sprocket. The saw teeth of the chain saw are arranged in contact with the outer side of the stem-pulling roller. The top of the mounting shell is rotatably installed with a first sprocket. The rotating shaft of the first sprocket longitudinally penetrates the mounting shell and is fixedly connected to the rotating shaft of one of the third sprockets. Second sprockets are fixedly installed on the two first gear shafts. A chain is sleeved on the second sprocket and the first sprocket.

[0010] As a preferred technical solution of the present invention, the fine-tuning mechanism includes a fixing shell fixedly installed on the top of the fixing hoop. The inner side walls of both sides of the fixing shell are rotatably installed with threaded rods. A movable block is threadedly installed on the threaded rod. The bottom of the movable block is fixedly connected to the mounting shell. A regular hexagonal rotating block is rotatably installed outside the fixing shell. The rotating shaft of the regular hexagonal rotating block horizontally penetrates the fixing shell and is fixedly connected to the threaded rod. A chute is opened on the fixing hoop. A slider is slidably installed in the chute. The corresponding side walls of the slider are fixedly connected to the mounting shell. Operation holes for adjusting the fine-tuning mechanism are opened on both sides of the mounting plate. The positions of the operation holes correspond to the positions of the regular hexagonal rotating blocks.

[0011] Compared with the prior art, the beneficial effects that the present invention can achieve are: 1. In the present invention, by arranging a chain saw for synchronous operation outside the stem-pulling roller, when the stem-pulling roller is operating, the chain saw can cut the grains wound on the stem-pulling roller, so as to clean the stem-pulling roller, effectively avoiding the situation that the stem-pulling roller cannot operate or the operation efficiency is reduced due to the grains wound on the roller body during operation, and ensuring the normal operation of the stem-pulling roller.

[0012] 2. In the present invention, a fine-tuning mechanism is arranged on the cleaning mechanism, so that the cleaning mechanism can adjust the distance between the chain saw and the stem-pulling roller according to the types of harvested grains, so as to meet the requirement that when the stem-pulling roller harvests different grains, the chain saw can cut off the grains wound on the stem-pulling roller, greatly improving the applicability of the device and meeting the use requirements of users.

[0013] 3. In the present invention, a chain saw parallel to the stem-pulling roller is arranged, so that when the stem-pulling roller rotates, the chain saw can completely cut the grains on the stem-pulling roller. At the same time, in cooperation with the rotation of the stem-pulling roller, the cut grains can be thrown off by centrifugal force, improving the cleaning effect of the stem-pulling roller, preventing the broken straw from being dialed into the stem-pulling roller, and preventing straw accumulation and blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention; Figure 2Schematic upward view structure of the present invention; Figure 3 Schematic top view structure of the present invention; Figure 4 Schematic structure diagram of the position of the main gear set of the present invention; Figure 5 Schematic structure diagram of the position of the threaded rod of the present invention; Figure 6 Schematic structure diagram of the position of the chain saw of the present invention; Figure 7 Schematic enlarged structure diagram of part A of the present invention.

[0015] Wherein: 1, gearbox; 2, mounting plate; 3, connecting arm; 4, driving gearbox; 5, cutting knife; 6, pulling stem roller; 7, sprocket set; 8, hydraulic rod; 9, threshing chain; 10, limit baffle; 11, driving gear; 12, main gear set; 13, chain; 14, first sprocket; 15, first gear shaft; 16, second sprocket; 17, second gear shaft; 18, fixing hoop; 19, mounting shell; 20, threaded rod; 21, slider; 22, fixed shell; 23, movable block; 24, chute; 25, third sprocket; 26, chain saw; 27, first cross shaft; 28, first U-shaped buckle; 29, connecting column; 30, second cross shaft; 31, second U-shaped buckle; 32, third U-shaped buckle; 33, fourth U-shaped buckle. Specific embodiments

[0016] 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. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0017] Embodiment: As Figures 1-7 shown, a self-running cutting table cleaning mechanism includes a gearbox 1. A connecting arm 3 is fixedly installed at the bottom of the gearbox 1. A cutting knife 5 is rotatably installed on the connecting arm 3. A mounting plate 2 is fixedly installed on the front side wall of the gearbox 1. The cutting knife 5 and the mounting plate 2 are horizontally arranged. A harvesting assembly is installed on the mounting plate 2. A cleaning assembly is arranged on the harvesting assembly. A fine adjustment mechanism is arranged on the cleaning assembly. The harvesting assembly and the cleaning assembly are synchronously driven.

[0018] In some embodiments, when the harvester header is operating, after the gearbox 1 is driven, at this time, the cutting knife 5 and the harvesting assembly are driven to operate simultaneously to perform the harvesting operation of grains. At this time, the harvesting assembly strips the grain particles, and at the same time, when the cutting knife 5 shreds the crop straw, the driven cleaning assembly can clean the harvesting assembly at the same time.

[0019] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the gearbox 1 is used to drive the operation of the cutting knife 5. The mounting plate 2 has a "V"-shaped structure. A driving gearbox 4 is fixedly installed at the center of the rear side wall of the gearbox 1. A driving gear 11 is rotatably installed in the driving gearbox 4. A main gear set 12 is rotatably installed in the driving gearbox 4. The main gear set 12 is meshed with the driving gear 11. First gear shafts 15 are rotatably installed on both side walls of the driving gearbox 4 located on both sides of the main gear set 12. Gears meshed with the main gear set 12 are installed on the first gear shafts 15. One of the two groups of first gear shafts 15 extends into the connecting arm 3 and is meshed with the gear in the connecting arm 3. A second gear shaft 17 is rotatably installed on the front side wall of the gearbox 1. A gear meshed with the main gear set 12 is installed on the second gear shaft 17.

[0020] The driving gear 11 is externally connected to a starting structure, so that the rotation of the driving gear 11 drives the rotation of the main gear set 12. At this time, the main gear set 12 drives the gears on the first gear shafts 15 to rotate, and at the same time, the main gear set 12 drives the second gear shaft 17 to rotate, so that the harvesting assembly can perform the driving operation.

[0021] As Figure 2 and Figure 3 shown, the harvesting assembly includes a sprocket group 7, a reel chain 9, a hydraulic rod 8, a fixing hoop 18 and a pulling roller 6. Hydraulic rods 8 are fixedly installed on both side walls of the mounting plate 2. The number of hydraulic rods 8 on the same side of the mounting plate 2 is two. The telescopic ends of the hydraulic rods 8 are fixedly installed with fixing hoops 18. Pulling rollers 6 are rotatably installed on the fixing hoops 18. The rear end of the pulling roller 6 is connected to the second gear shaft 17. A universal joint is provided at the connection between the second gear shaft 17 and the pulling roller 6. A sprocket group 7 is rotatably installed on the top of the mounting plate 2. The number of sprocket groups 7 is two groups and corresponds to the pulling roller 6 in sequence. The number of sprockets in a single sprocket group 7 is three groups and is arranged in a triangular structure. A reel chain 9 is sleeved and installed on the sprocket group 7. One of the sprockets on a single sprocket group 7 is fixedly connected to the first gear shaft 15. A limit baffle 10 is fixedly installed on the top of the mounting plate 2. The limit baffle 10 is located inside the reel chain 9; The cutting knife 5 is located below the interval between the two pulling rollers 6.

[0022] The second gear shaft 17 drives the pulling roller 6 to rotate for operation. At the same time, the first gear shaft 15 drives the sprocket group 7 to rotate, causing the reel chain 9 to operate. When it is necessary to adjust the spacing of the pulling roller 6, at this time, the driving hydraulic rod 8 drives the fixed hoop 18 to move horizontally, and then drives the adjustment of the pulling roller 6, thereby changing the spacing.

[0023] As Figure 7 shown, the universal joint includes a first U-shaped buckle 28, a connecting column 29, a first cross shaft 27, a second U-shaped buckle 31, a third U-shaped buckle 32, a fourth U-shaped buckle 33 and a second cross shaft 30. The free end of the second gear shaft 17 is fixedly installed with a first U-shaped buckle 28. A first cross shaft 27 is rotatably installed on the first U-shaped buckle 28. Another set of shaft bodies on the first cross shaft 27 is rotatably connected to the third U-shaped buckle 32. A connecting column 29 is fixedly installed on the front side of the third U-shaped buckle 32. The free end of the connecting column 29 is fixedly installed with a fourth U-shaped buckle 33. A second cross shaft 30 is rotatably installed on the fourth U-shaped buckle 33. Another set of shaft bodies of the fourth U-shaped buckle 33 is rotatably connected to the second U-shaped buckle 31. The second U-shaped buckle 31 is fixedly connected to the rear end of the pulling roller 6.

[0024] After the hydraulic rod 8 drives the adjustment of the pulling roller 6, at this time, due to the existence of the first cross shaft 27 and the second cross shaft 30, the second U-shaped buckle 31 and the third U-shaped buckle 32 rotate to adjust the position, thereby changing the angle of the connecting column 29, and at the same time, it does not affect the rotation of the pulling roller 6.

[0025] As Figure 4 、 Figure 5 and Figure 6 shown, the cleaning component includes a mounting shell 19, a third sprocket 25 and a chain saw 26. The mounting shell 19 is installed on the corresponding side wall of the fixed hoop 18. The mounting shell 19 is located outside the pulling roller 6. The top and bottom of the inner side of the mounting shell 19 are rotatably installed with third sprockets 25. The number of the third sprockets 25 is two groups. A chain saw 26 is sleeved on the third sprocket 25. The saw teeth of the chain saw 26 are attached to the outside of the pulling roller 6. A first sprocket 14 is rotatably installed on the top of the mounting shell 19. The rotating shaft of the first sprocket 14 longitudinally penetrates the mounting shell 19 and is fixedly connected to the rotating shaft of one of the third sprockets 25. Second sprockets 16 are fixedly installed on the two first gear shafts 15. A chain 13 is sleeved on the second sprockets 16 and the first sprocket 14.

[0026] When the first gear shaft 15 rotates, at this time, the second sprocket 16 on the first gear shaft 15 rotates accordingly, causing the second sprocket 16 to drive the chain 13 to operate, causing the first sprocket 14 to rotate, and then driving the third sprocket 25 to rotate. At this time, the chain saw 26 on the third sprocket 25 starts to operate to cut the straw and grains wound on the pulling roller 6 to avoid entanglement.

[0027] AsFigure 5 As shown in the figure, the fine-tuning mechanism includes a fixed housing 22 fixedly installed at the top of the fixed hoop 18. The inner walls on both sides of the fixed housing 22 are rotatably installed with threaded rods 20. A movable block 23 is threadedly installed on the threaded rods 20. The bottom of the movable block 23 is fixedly connected to the installation housing 19. A regular hexagon rotating block is rotatably installed on the outside of the fixed housing 22. The rotating shaft of the regular hexagon rotating block horizontally penetrates the fixed housing 22 and is fixedly connected to the threaded rod 20. A chute 24 is opened on the fixed hoop 18. A slider 21 is slidably installed in the chute 24. The corresponding side walls of the slider 21 are fixedly connected to the installation housing 19.

[0028] When it is necessary to adjust the distance between the chain saw 26 and the stem-pulling roller 6, at this time, the user rotates the regular hexagon rotating block through the hexagon socket head cap screw, causing the regular hexagon rotating block to drive the threaded rod 20 to rotate. At this time, since the movable block 23 is threadedly connected to the threaded rod 20 and the movable block 23 is fixedly arranged with the fixed housing 22, when the threaded rod 20 rotates, the movable block 23 can drive the fixed housing 22 to move horizontally to adjust the distance between the chain saw 26 and the stem-pulling roller 6.

[0029] As Figure 5 shown, operation holes for adjusting the fine-tuning mechanism are opened on both sides of the mounting plate 2. The positions of the operation holes correspond to the positions of the regular hexagon rotating blocks.

[0030] A cutter bar includes the above-mentioned self-running cutter bar cleaning mechanism.

[0031] Working principle: When the harvester is operating, at this time, the harvester drive drives the drive gear 11 to rotate, causing the drive gear 11 to rotate and drive the main gear set 12 to rotate. At this time, the first gear shaft 15 and the second gear shaft 17 rotate accordingly. The first gear shaft 15 drives the sprocket set 7 to rotate, causing the reel chain 9 to perform a rotating operation. At the same time, the second gear shaft 17 drives the stem-pulling roller 6 to rotate for operation; When the first gear shaft 15 rotates, it drives the second sprocket 16 to rotate at the same time, causing the second sprocket 16 to drive the chain 13 to perform an operation. At this time, the first sprocket 14 rotates to drive the third sprocket 25 to rotate. At this time, the chain saw 26 operates to cut and clean the straw wrapped around the stem-pulling roller 6.

[0032] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art to which the present invention pertains.

Claims

1. A self-propelled header cleaning mechanism, comprising a gear box (1), characterized in that: A connecting arm (3) is fixedly mounted on the bottom of the gear box (1), a cutting knife (5) is rotatably mounted on the connecting arm (3), a mounting plate (2) is fixedly mounted on the front side wall of the gear box (1), the cutting knife (5) and the mounting plate (2) are arranged horizontally, a harvesting assembly is mounted on the mounting plate (2), a cleaning assembly is arranged on the harvesting assembly, a fine-tuning mechanism is arranged on the cleaning assembly, and the harvesting assembly and the cleaning assembly are driven synchronously; The gear box (1) is used to drive the cutting blade (5) to operate. The mounting plate (2) is in a "V"-shaped structure. A driving gear box (4) is fixedly mounted in the middle of the rear side wall of the gear box (1). A driving gear (11) is rotatably mounted in the driving gear box (4). A main gear set (12) is rotatably mounted in the driving gear box (4). The main gear set (12) is meshed with the driving gear (11). First gear shafts (15) are rotatably mounted on both side walls of the main gear set (12) on the driving gear box (4). A gear meshed with the main gear set (12) is mounted on the first gear shaft (15). One of the two groups of first gear shafts (15) extends into the connecting arm (3) and is meshed with the gear in the connecting arm (3). A second gear shaft (17) is rotatably mounted on the front side wall of the gear box (1). A gear meshed with the main gear set (12) is mounted on the second gear shaft (17). The cleaning assembly comprises a mounting shell (19), a third sprocket (25) and a chain saw (26). The mounting shell (19) is mounted on the corresponding side wall of the fixing hoop (18). The mounting shell (19) is located on the outer side of the stem pulling roller (6). The third sprocket (25) is rotatably mounted on the inner top and bottom of the mounting shell (19). The number of the third sprockets (25) is two groups. The third sprocket (25) is sleeved with a chain saw (26). The saw teeth of the chain saw (26) are arranged to fit the outer side of the stem pulling roller (6). The first sprocket (14) is rotatably mounted on the top of the mounting shell (19). The rotating shaft of the first sprocket (14) longitudinally penetrates the mounting shell (19) and is fixedly connected to the rotating shaft of one group of the third sprocket (25). The second sprocket (16) is fixedly mounted on the two groups of first gear shafts (15). The second sprocket (16) and the first sprocket (14) are sleeved with a chain (13).

2. A self-propelled header cleaning mechanism according to claim 1, characterized in that: The harvesting assembly comprises a sprocket group (7), a straw chain (9), a hydraulic rod (8), a fixed hoop (18) and a stem pulling roller (6). The two side walls of the mounting plate (2) are fixedly mounted with hydraulic rods (8). The number of hydraulic rods (8) on the same side of the mounting plate (2) is two. The telescopic end of the hydraulic rod (8) is fixedly mounted with a fixed hoop (18). The stem pulling roller (6) is rotatably mounted on the fixed hoop (18). The rear end of the stem pulling roller (6) is connected to the second gear shaft (17). The connection between the second gear shaft (17) and the stem pulling roller (6) is provided. A universal joint is provided, a sprocket group (7) is rotatably installed on the top of the mounting plate (2), the number of the sprocket groups (7) is two and they correspond to the stem pulling rollers (6) in sequence, the number of sprockets in a single sprocket group (7) is three and they are arranged in a triangular structure, a weeding chain (9) is sleeved and installed on the sprocket group (7), one of the sprockets on the single sprocket group (7) is fixedly connected to the first gear shaft (15), a limit baffle (10) is fixedly installed on the top of the mounting plate (2), and the limit baffle (10) is located on the inner side of the weeding chain (9); The cutting knife (5) is located below the interval between the two sets of stem pulling rollers (6).

3. A self-propelled header cleaning mechanism according to claim 2, characterized in that: The universal joint comprises a first U-shaped buckle (28), a connecting column (29), a first cross shaft (27), a second U-shaped buckle (31), a third U-shaped buckle (32), a fourth U-shaped buckle (33) and a second cross shaft (30); the first U-shaped buckle (28) is fixedly mounted on the free end of the second gear shaft (17); the first cross shaft (27) is rotatably mounted on the first U-shaped buckle (28); another group of shaft bodies on the first cross shaft (27) is rotatably connected to the third U-shaped buckle (32); a connecting column (29) is fixedly mounted on the front side of the third U-shaped buckle (32); a fourth U-shaped buckle (33) is fixedly mounted on the free end of the connecting column (29); the second cross shaft (30) is rotatably mounted on the fourth U-shaped buckle (33); another group of shaft bodies of the fourth U-shaped buckle (33) is rotatably connected to the second U-shaped buckle (31); and the second U-shaped buckle (31) is fixedly connected to the rear end of the stem pulling roller (6).

4. A self-propelled header cleaning mechanism according to claim 1, characterized in that: The fine adjustment mechanism comprises a fixing hoop (18) having a fixing shell (22) fixedly mounted on the top thereof, threaded rods (20) rotatably mounted on the inner walls of both sides of the fixing shell (22), a movable block (23) threadably mounted on the threaded rods (20), the bottom of the movable block (23) being fixedly connected to the mounting shell (19), a regular hexagonal rotating block rotatably mounted on the outer side of the fixing shell (22), the rotating shaft of the regular hexagonal rotating block laterally passing through the fixing shell (22) and being fixedly connected to the threaded rod (20), a sliding groove (24) being provided on the fixing hoop (18), a sliding block (21) being slidably mounted in the sliding groove (24), and the corresponding side wall of the sliding block (21) being fixedly connected to the mounting shell (19).

5. A self-propelled header cleaning mechanism according to claim 4, characterized in that: Both sides of the mounting plate (2) are provided with operating holes for adjusting the fine-tuning mechanism, and the positions of the operating holes correspond to the positions of the regular hexagonal rotating blocks.

6. A header, characterized in that: It comprises a self-operating header cleaning mechanism as described in any one of claims 1 to 5.

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