Anti-biting self-discharging type corn ear picking mechanism

By adopting the front and rear picking roller structures with high front and low front and long front and long back in the corn harvester, combined with the spiral blades and convex edge design, the problem of corn ears not being able to be transported in time after they leave the straw is solved, high-effect ear transport and reduce damage, improving operational stability and reducing energy consumption.

CN120530795APending Publication Date: 2025-08-26SHANDONG SHUANGLI MODERN AGRI EQUIP
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Patent Information

Application Number
CN202510768640.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2025-08-26

AI Technical Summary

Technical Problem

The ear picking mechanism of the existing corn harvester cannot enter the conveying mechanism in time after the corn ears leave the straw, resulting in damage to the ears or grains, and it is also easy to cause losses during the transportation process.

Method used

The front and rear ear picking roller structures are adopted, which are high in front and low in front and long in back, and are combined with the front and raised spiral blades and rear ear picking convex edge design to realize the horizontal feeding and forced ear picking of corn stalks, and the fruit ears are transported through the lateral conveying device to reduce gnawing injuries.

Benefits of technology

It improves the efficiency of picking ears, reduces the damage to ears, enhances the stability and reliability of the operation process, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of intelligent agricultural machinery, and provides an anti-biting self-discharging type corn ear picking mechanism which comprises a header, the header comprises a rack, a transmission box is arranged in the middle of the front end of the rack, a front ear picking roller and a rear ear picking roller which rotate are installed on the transmission box, and a power mechanism used for providing power for the transmission box is arranged on the rack. The corn thresher has the advantages that the front snapping roller and the rear snapping roller are high in front, low in rear, short in front and long in rear, the front snapping roller and the rear snapping roller are of a structure with front heightened spiral blades and rear snapping ribs, the front snapping roller and the rear snapping roller are high in front, short in front and long in rear, and accordingly the corn thresher is high in corn threshing efficiency, high in corn threshing efficiency and high in corn threshing efficiency. According to the corn ear picking device, transverse forced feeding and rear forced ear picking of corn stalks are achieved, ear picking efficiency is improved, ear gnawing is reduced, and ears harvested by the front ear picking roller and the rear ear picking roller are transversely conveyed through the transverse conveying device.
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Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent agricultural machinery, and in particular relates to an anti-bite self-discharging corn ear picking mechanism. Background Art

[0002] The existing corn harvester's ear picking mechanism has two structures: the ear picking plate and the ear picking roller. The axis of the rotating stem pulling parts of these two structures is parallel to the direction of travel of the harvester. After the axial corn ears are separated from the straw by the ear picking roller (stem pulling roller), they need to pass through a set of conveying mechanisms before they can be collected by the auger and then enter the elevator. This structure has two disadvantages: 1. After the corn cobs are picked, they cannot enter the conveying mechanism in time and stay on the picking roller (stem pulling roller) for a period of time and contact the picking roller (stem pulling roller). Because the picking roller (stem pulling roller) rotates at high speed, the corn cobs or corn kernels will be damaged, resulting in increased losses.

[0003] 2. During the conveying process, the conveyor chain (or scraper) contacts the corn cobs and there is relative movement, which may also cause damage to the corn cobs or corn kernels and increase losses. Summary of the Invention

[0004] In view of this, the present invention provides a self-discharging corn ear picking mechanism that prevents biting. The front ear picking roller and the rear ear picking roller adopt a front high and rear low, front short and rear long manner, and the front ear picking roller and the rear ear picking roller adopt a structure of front elevated spiral blades and rear ear picking ridges, which realizes the forced horizontal feeding of corn stalks and forced ear picking at the rear, improves the ear picking efficiency, reduces the damage to the ears by biting, and the ears harvested by the front ear picking roller and the rear ear picking roller are transported horizontally by a horizontal conveying device.

[0005] The technical solution is as follows: A self-discharging corn ear picking mechanism with an anti-biting function comprises a cutting platform, the cutting platform comprises a frame, a straw divider for guiding corn plants to be harvested is provided on the frame, a transmission box (112) is provided at the middle position of the front end of the frame, the transmission box (112) is equipped with a rotating front ear picking roller and a rear ear picking roller, a power mechanism for driving the transmission box (112) to rotate is provided on the frame, the height of the front ear picking roller is higher than that of the rear ear picking roller, and the length of the front ear picking roller is shorter than that of the rear ear picking roller, and a transverse conveying device for transversely conveying the ears harvested by the front ear picking roller and the rear ear picking roller is provided on the frame.

[0006] During use of the above technical solution: the front ear picking roller and the rear ear picking roller adopt a method of high front and low back, short front and long back, and the front ear picking roller and the rear ear picking roller adopt a structure of front elevated spiral blades and rear ear picking ridges, so as to realize the forced horizontal feeding of corn stalks and forced ear picking at the rear, improve the efficiency of ear picking, reduce the damage to the ears, and transport the ears harvested by the front ear picking roller and the rear ear picking roller horizontally through the horizontal conveying device.

[0007] Preferably, the front ear-picking roller and the rear ear-picking roller respectively include a front short roller and a rear long roller, and the front short roller and the rear long roller are both provided with front elevated spiral blades and rear ear-picking ridges, and the front short stick and the rear long stick are both provided with front ear-picking rods for picking ears.

[0008] Preferably, a front mounting hole and a rear mounting hole are provided on the transmission box, a front rotating shaft rotatably mounted in the front mounting hole is fixedly provided on the front short roller, a front transmission gear is fixedly provided on the front rotating shaft, and a rear rotating shaft rotatably mounted in the rear mounting hole is fixedly provided on the rear long roller. A rear transmission gear meshing with the front transmission gear is fixedly provided on the rear rotating shaft, and a first mounting seat for rotatably mounting the rear long roller is fixedly provided on the frame. The frame is provided with a first mounting frame, and the power mechanism includes a driving component mounted on the first mounting frame for driving the rear long roller to rotate, a second mounting frame is fixedly provided at the middle position of the front end of the frame, the transmission box is mounted on the second mounting frame, and a third mounting frame is provided on the second mounting frame, and a front mounting seat for rotatably mounting the front short stick is detachably mounted on the third mounting frame.

[0009] Preferably, the transverse conveying device includes an arc-shaped conveying plate fixedly mounted on the frame, a main shaft is rotatably mounted on the arc-shaped conveying plate, a conveying auger is provided on the main shaft, an ear discharge opening for discharging fruit ears is opened on the frame, a shifting plate is fixedly provided on the part of the main shaft located at the ear discharge opening, and a plurality of conical teeth are provided on the shifting plate.

[0010] Preferably, the power mechanism includes a main rotating shaft rotatably mounted on the first mounting frame, one end of the main rotating shaft is fixedly connected to the conveying end of the driving component, a first sprocket and a third sprocket are fixedly provided on the main rotating shaft, a first mounting seat for rotatably mounting the main shaft is fixedly provided on the frame, a second sprocket and a fourth sprocket are fixedly provided on one end of the main shaft and the rear long roller, the first sprocket and the second sprocket are connected by a first chain transmission, the third sprocket and the fourth sprocket are connected by a second chain transmission, and a tensioning wheel for tensioning and adjusting the first chain and the second chain is provided on the first mounting frame.

[0011] Preferably, the straw divider includes a straw chain arrangement mounted on a frame, an octagonal star wheel corresponding to the straw chain arrangement is rotatably mounted on the frame, a top plate is provided on the frame, the straw chain arrangement is mounted on the top plate, and a star wheel mounting seat for rotatably mounting the octagonal star wheel is provided on the frame.

[0012] Preferably, the plowing chain arrangement includes a main sprocket rotatably mounted on the top plate, a fifth sprocket and an adjusting sprocket rotatably mounted on the top plate, the main sprocket, the fifth sprocket and the adjusting sprocket are transmission-connected with a plowing chain, and the plowing chain is provided with a plurality of evenly distributed plowing fingers that cooperate with the octagonal star wheel.

[0013] Preferably, a first mounting hole is provided on the top plate, the main sprocket is fixedly provided with a first rotating shaft, the first rotating shaft is rotatably mounted in the first mounting hole of the top plate, the top plate is fixedly provided with a supporting frame, a sliding frame is slidably mounted in the supporting frame, and a mounting plate is fixedly provided on the supporting frame, an adjusting screw is threadedly mounted on the mounting plate, the end of the adjusting screw is rotatably mounted on the sliding frame, and a fourth mounting bracket for rotatably mounting the adjusting sprocket is provided on the sliding frame. The top plate has a mounting slot, and the fifth sprocket is rotatably mounted in the mounting slot, and the two first rotating shafts are connected by a transmission mechanism, and the transmission mechanism includes a second rotating shaft rotatably mounted on the transmission box, and second transmission gears are fixedly provided at both ends of the second rotating shaft, and first transmission gears meshing with two second transmission gears are fixedly provided on the two first rotating shafts.

[0014] During use, the above technical solution drives the plowing fingers to rotate through the plowing chain, and cooperates with the passively guided octagonal star wheel to form a closed space, ensuring that each corn plant is forcibly guided to the end of the ear picking roller, realizing orderly and directional feeding of the corn plants, and enhancing the stability and reliability of the operation process.

[0015] Preferably, a driving component for driving the first rotating shaft to rotate is provided at the lower end of the top plate.

[0016] Preferably, a third transmission gear meshing with the front transmission gear is fixedly provided on the second rotating shaft.

[0017] During use of the above technical solution: the starting driving component drives the front ear picking roller, the rear ear picking roller, the rice chain arrangement, and the transverse conveying device to rotate synchronously through the power mechanism, reducing the number of driving components, reducing energy consumption, and improving the coordination between the various parts.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are: 1. The front and rear ear picking rollers are high in the front and low in the back, short in the front and long in the back. The front and rear ear picking rollers adopt a structure with high spiral blades in the front and convex ridges in the rear, which realizes the forced feeding of corn stalks in the horizontal direction and forced ear picking at the rear, thereby improving the ear picking efficiency and reducing ear damage. The ears harvested by the front and rear ear picking rollers are transported horizontally through the lateral conveying device. 2. The plowing chain drives the plowing fingers to rotate, and the passively guided octagonal star wheel forms a closed space to ensure that each corn plant is forcibly guided to the end of the ear picking roller, achieving orderly and directional feeding of the corn plants and enhancing the stability and reliability of the operation process. 3. The starting drive component drives the front and rear ear picking rollers, the straw chain arrangement, and the transverse conveying device to rotate synchronously through the power mechanism, reducing the number of drive components, lowering energy consumption, and improving the coordination between various parts. 4. The front and rear ear-picking rollers are arranged perpendicular to the travel direction of the harvester, which can reduce the longitudinal size of the harvesting platform and reduce the impact of the harvester body's bumps on the ground clearance of the harvesting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the top view of the structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the top view of the structure of the present invention; Figure 4 It is a schematic cross-sectional view of the present invention; Figure 5 An exploded view of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the power mechanism of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the front ear-picking roller, the rear ear-picking roller, the power mechanism and the transverse conveying device of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the front ear-picking roller, the rear ear-picking roller, the power mechanism and the transverse conveying device of the present invention; Figure 9 It is a schematic cross-sectional view of the front ear-picking roller, the rear ear-picking roller, the power mechanism and the transverse conveying device of the present invention; Figure 10 It is a schematic diagram of the exploded structure of the front ear picking roller and the rear ear picking roller of the present invention; Figure 11 It is a schematic diagram of the three-dimensional structure of the reed chain arrangement of the present invention; Figure 12 It is a schematic diagram of the explosion structure of the reed chain arrangement of the present invention; Figure 13 It is a schematic diagram of the partial three-dimensional structure of the reed chain arrangement of the present invention; In the figure, 1, cutting platform; 2, guide shell of grain divider; 3, front ear-picking roller; 4, rear ear-picking roller; 5, power mechanism; 6, arrangement of grain-picking chain; 7, transmission mechanism; 8, octagonal star wheel; 9, transverse conveying device; 11, frame; 12, ear-row opening; 13, first mounting frame; 14, arc-shaped conveying plate; 15, star wheel mounting seat; 16, top plate; 17, mounting groove; 18, first mounting hole; 19, front guard plate; 110, second mounting frame; 112, transmission box; 113, rear mounting hole; 114, front mounting hole; 115, third mounting frame; 116, first mounting seat; 31, front rotating shaft; 32, front transmission gear; 33, front short roller; 34, front heightened spiral blade; 35, rear ear-picking ridge; 36, front ear-picking rod; 37, front mounting seat; 38, connecting rod Frame; 41. Rear rotating shaft; 42. Rear transmission gear; 43. Rear long roller; 51. Driving component; 52. Main rotating shaft; 53. First sprocket; 54. Second sprocket; 55. Third sprocket; 56. Fourth sprocket; 57. Second chain; 58. First chain; 59. Tensioner; 61. Fifth sprocket; 62. Main sprocket; 63. Plowing chain; 64. Plowing finger; 65. Support frame; 66. Sliding frame; 67. Mounting plate; 68. Adjusting screw; 69. Fourth mounting frame; 610. Adjusting sprocket; 71. First rotating shaft; 72. First transmission gear; 73. Second transmission gear; 74. Second rotating shaft; 75. Third transmission gear; 76. Bottom mounting seat; 91. Main shaft; 92. Conveying auger; 93. Plowing plate; 94. Conical teeth; DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0022] like Figures 1 to 13 As shown, a self-discharging corn ear picking mechanism with anti-biting effect includes a cutting platform 1, the cutting platform 1 includes a frame 11, and the frame 11 is provided with a straw divider for guiding corn plants to be harvested. A transmission box (112) is provided at the middle position of the front end of the frame 11, and a rotating front ear picking roller 3 and a rear ear picking roller 4 are installed on the transmission box (112). A power mechanism 5 is provided on the frame 11 for driving the front ear picking roller 3 and the rear ear picking roller 4 to rotate synchronously, the height of the front ear picking roller 3 is higher than the rear ear picking roller 4, and the length of the front ear picking roller 3 is shorter than the rear ear picking roller 4, and a horizontal conveying device 9 is provided on the frame 11 for horizontally conveying the ears harvested by the front ear picking roller 3 and the rear ear picking roller 4.

[0023] In actual operation: the front ear picking roller 3 and the rear ear picking roller 4 adopt a method of being high in the front and low in the back, short in the front and long in the back, and the front ear picking roller 3 and the rear ear picking roller 4 adopt a structure of front elevated spiral blades 34 and rear ear picking ridges 35, to achieve forced horizontal feeding of corn stalks and forced ear picking at the rear, improve the efficiency of ear picking, reduce the damage to the ears, and the ears harvested by the front ear picking roller 3 and the rear ear picking roller 4 are transported horizontally through the horizontal conveying device 9.

[0024] The front ear-picking roller 3 and the rear ear-picking roller 4 respectively include a front short roller 33 and a rear long roller 43. The front short roller 33 and the rear long roller 43 are both provided with front elevated spiral blades 34 and rear ear-picking ridges 35. The front short stick and the rear long stick are both provided with front ear-picking rods 36 for picking ears.

[0025] The transmission box (112) is provided with a front mounting hole 114 and a rear mounting hole 113. A front rotating shaft 31 rotatably mounted in the front mounting hole 114 is fixedly provided on the front short roller 33. A front transmission gear 32 is fixedly provided on the front rotating shaft 31. A rear rotating shaft 41 rotatably mounted in the rear mounting hole 113 is fixedly provided on the rear long roller 43. A rear transmission gear 42 meshing with the front transmission gear 32 is fixedly provided on the rear rotating shaft 41. A gear for rotatably mounting the rear long roller 43 is fixedly provided on the frame 11. The first mounting bracket 116 of 3 is provided on the frame 11, the first mounting bracket 13 is provided on the frame 11, the power mechanism 5 includes a driving component 51 installed on the first mounting bracket 13 for driving the rear long roller 43 to rotate, a second mounting bracket 110 is fixedly provided at the middle position of the front end of the frame 11, the transmission box (112) is installed on the second mounting bracket 110, and a third mounting bracket 115 is provided on the second mounting bracket 110, and a front mounting bracket 37 for rotatably mounting the front short stick is detachably installed on the third mounting bracket 115.

[0026] Specifically: the driving component 51 is a driving motor, and the driving component 51 is installed on the first mounting frame 13 by bolts and nuts. The connecting frame 38 is installed on the front mounting seat 37 by rotating the pin shaft. The connecting frame 38 is provided with a connecting screw. A groove is opened on the first mounting seat 116. The connecting screw is slid into the groove and is threadedly connected to the connecting screw through a nut to connect and fix the first mounting seat 116 to the front mounting seat 37.

[0027] The transverse conveying device 9 includes an arc-shaped conveying plate 14 fixedly mounted on the frame 11, a main shaft 91 is rotatably mounted on the arc-shaped conveying plate 14, a conveying auger 92 is provided on the main shaft 91, an ear discharge opening 12 for discharging fruit ears is opened on the frame 11, a shift plate 93 is fixedly provided on the part of the main shaft 91 located at the ear discharge opening 12, and a plurality of conical teeth are provided on the shift plate 93.

[0028] The power mechanism 5 includes a main rotating shaft 52 rotatably mounted on the first mounting frame 13, one end of the main rotating shaft 52 is fixedly connected to the conveying end of the driving component 51, and a first sprocket 53 and a third sprocket 55 are fixedly provided on the main rotating shaft 52. A first mounting seat 116 for rotatably mounting the main shaft 91 is fixedly provided on the frame 11, and a second sprocket 54 and a fourth sprocket 56 are fixedly provided on one end of the main shaft 91 and the rear long roller 43, respectively. The first sprocket 53 and the second sprocket 54 are connected by a first chain 58, and the third sprocket 55 and the fourth sprocket 56 are connected by a second chain 57. The first mounting frame 13 is provided with a tensioning wheel 59 for tensioning and adjusting the first chain 58 and the second chain 57.

[0029] In actual operation: starting the driving component 51 drives the first sprocket 53 and the third sprocket 55 to rotate through the main rotating shaft 52, and the second sprocket 54 and the fourth sprocket 56 are driven to rotate through the transmission of the first chain 58 and the second chain 57, and the rear long stick is driven to rotate through the fourth sprocket 56, and the rear long stick is driven to rotate through the rear rotating shaft 41 to drive the rear transmission gear 42 to rotate, and the transmission of the rear transmission gear 42 and the front transmission gear 32 will drive the front rotating shaft 31 to rotate, and the front short stick is driven to rotate through the front rotating shaft 31, and the front ears are picked. The roller 3 and the rear ear picking roller 4 are high in the front and low in the back, short in the front and long in the back, and the front ear picking roller 3 and the rear ear picking roller 4 adopt a structure of front elevated spiral blades 34 and rear ear picking ridges 35, which realize the forced horizontal feeding of corn stalks and forced ear picking at the rear, improve the ear picking efficiency, and reduce the damage to the ears. The main shaft 91 is driven to rotate by the second sprocket 54, and the conveying auger 92 and the paddle 93 are driven to rotate by the main shaft 91. The ears are conveyed horizontally by the conveying auger 92, and the paddle 93 discharges the conveyed ears through the ear discharge port 12.

[0030] The straw divider includes a straw chain arrangement 6 mounted on a frame 11, an octagonal star wheel 8 corresponding to the straw chain arrangement 6 is rotatably mounted on the frame 11, a top plate 16 is provided on the frame 11, the straw chain arrangement 6 is mounted on the top plate 16, and a star wheel mounting seat 15 for rotatably mounting the octagonal star wheel 8 is provided on the frame 11.

[0031] The plowing chain arrangement 6 includes a main sprocket 62 rotatably mounted on the top plate 16, on which a fifth sprocket 61 and an adjusting sprocket 610 are rotatably mounted. The main sprocket 62, the fifth sprocket 61 and the adjusting sprocket 610 are transmission-connected to a plowing chain 63, on which a plurality of evenly distributed shifting fingers 64 that cooperate with the octagonal star wheel 8 are provided.

[0032] A first mounting hole 18 is provided on the top plate 16, a first rotating shaft 71 is fixedly provided on the main sprocket 62, and the first rotating shaft 71 is rotatably installed in the first mounting hole 18 of the top plate 16, a supporting frame 65 is fixedly provided on the top plate 16, a sliding frame 66 is slidably installed in the supporting frame 65, a mounting plate 67 is fixedly provided on the supporting frame 65, an adjusting screw 68 is threadedly installed on the mounting plate 67, the end of the adjusting screw 68 is rotatably installed on the sliding frame 66, and a fourth mounting frame 69 for rotatably installing the adjusting sprocket 610 is provided on the sliding frame 66, a mounting groove 17 is provided on the top plate 16, and the fifth sprocket 61 is rotatably installed in the mounting groove 17, the two first rotating shafts 71 are connected by a transmission mechanism 7, the transmission mechanism 7 includes a second rotating shaft 74 rotatably installed on the transmission box (112), and second transmission gears 73 are fixedly provided at both ends of the second rotating shaft 74, and first transmission gears 72 meshing with the two second transmission gears 73 are fixedly provided on the two first rotating shafts 71.

[0033] A driving component 51 is provided at the lower end of the top plate 16 for driving the first rotating shaft 71 to rotate.

[0034] Specifically: a front guard plate 19 is provided between the top plate 16 and the second mounting frame 110, the fifth sprocket 61 is installed on the mounting seat through a rotating shaft, the mounting seat is provided with a support rod slidably installed in the mounting groove 17, the end of the support rod is provided with an external thread, and the mounting seat is installed in the mounting groove 17 through a nut connected to the external thread on the support rod, a screw hole is provided on the mounting plate 67, and the adjusting screw 68 is threadedly installed in the screw hole, and the second mounting frame 110 is provided with a bottom mounting seat 76 for rotatably mounting the first rotating shaft 71.

[0035] In actual operation: starting the driving component 51 drives the main sprocket 62 to rotate through the first rotating shaft 71, and drives the plowing chain 63 to rotate through the cooperation of the main sprocket 62, the fifth sprocket 61 and the adjusting sprocket 610, and drives the plowing finger 64 to rotate through the plowing chain 63, and cooperates with the passively guided octagonal star wheel 8 to form a closed space, ensuring that each corn plant is forcibly guided to the end of the ear picking roller, realizing orderly and directional feeding of the corn plants, and enhancing the stability and reliability of the operation process. Example

[0036] Based on the first embodiment, Figure 11-13 As shown, a third transmission gear 75 meshing with the front transmission gear 32 is fixedly provided on the second rotating shaft 74 .

[0037] In actual operation: starting the driving component 51 drives the front ear picking roller 3, the rear ear picking roller 4, the straw chain arrangement 6, and the transverse conveying device 9 to rotate synchronously through the power mechanism 5, reducing the number of driving components 51, reducing energy consumption, and improving the coordination between the various parts.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. The present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the invention to be protected.

Claims

1. A self-discharging corn ear picking mechanism with an anti-bite function, comprising a header (1), the header (1) comprising a frame (11), the frame (11) being provided with a grain divider for guiding corn plants to be harvested, characterized in that: A transmission box (112) is provided at the middle position of the front end of the frame (11); a rotating front ear-picking roller (3) and a rear ear-picking roller (4) are mounted on the transmission box (112); a power mechanism (5) for providing power to the transmission box (112) is provided on the frame (11); the height of the front ear-picking roller (3) is higher than that of the rear ear-picking roller (4), and the length of the front ear-picking roller (3) is shorter than that of the rear ear-picking roller (4); and a transverse conveying device (9) for transversely conveying the ears harvested by the front ear-picking roller (3) and the rear ear-picking roller (4) is provided on the frame (11).

2. The anti-bite self-discharging corn ear picking mechanism according to claim 1, characterized in that: The front ear-picking roller (3) and the rear ear-picking roller (4) respectively comprise a front short roller (33) and a rear long roller (43); the front short roller (33) and the rear long roller (43) are both provided with front heightening spiral blades (34) and forced rear ear-picking ridges (35); and the front short stick and the rear long stick are both provided with front ear-picking rods (36) for picking ears.

3. The anti-bite self-discharging corn ear picking mechanism according to claim 2, characterized in that: The transmission box (112) is provided with a front mounting hole (114) and a rear mounting hole (113); the front short roller (33) is fixedly provided with a front rotating shaft (31) rotatably mounted in the front mounting hole (114); the front rotating shaft (31) is fixedly provided with a front transmission gear (32); the rear long roller (43) is fixedly provided with a rear rotating shaft (41) rotatably mounted in the rear mounting hole (113); the rear rotating shaft (41) is fixedly provided with a rear transmission gear (32) meshed with the front transmission gear (32). The invention relates to a gear (42), a first mounting seat (116) for rotatably mounting a rear long roller (43) is fixedly provided on the frame (11), a first mounting frame (13) is provided on the frame (11), the power mechanism (5) comprises a driving component (51) installed on the first mounting frame (13) for driving the rear long roller (43) to rotate, a second mounting frame (110) is fixedly provided at the middle position of the front end of the frame (11), and the transmission box (112) is installed on the second mounting frame (110).

4. The anti-bite self-discharging corn ear picking mechanism according to claim 3, characterized in that: The transverse conveying device (9) comprises an arc-shaped conveying plate (14) fixedly mounted on a frame (11); a main shaft (91) is rotatably mounted on the arc-shaped conveying plate (14); a conveying auger (92) is provided on the main shaft (91); an ear discharge opening (12) for discharging ear clusters is provided on the frame (11); and a shifting plate (93) is fixedly provided on the portion of the main shaft (91) located at the ear discharge opening (12).

5. The anti-bite self-discharging corn ear picking mechanism according to claim 4, characterized in that: The power mechanism (5) includes a main rotating shaft (52) rotatably mounted on a first mounting frame (13), one end of the main rotating shaft (52) is connected and fixed to the conveying end of the driving component (51), a first sprocket (53) and a third sprocket (55) are fixedly arranged on the main rotating shaft (52), a first mounting seat (116) for rotatably mounting the main shaft (91) is fixedly arranged on the frame (11), a second sprocket (54) and a fourth sprocket (56) are fixedly arranged on one end of the main shaft (91) and the rear long roller (43), the first sprocket (53) and the second sprocket (54) are respectively connected by a first chain (58), the third sprocket (55) and the fourth sprocket (56) are connected by a second chain (57), and a tensioning wheel (59) for tensioning and adjusting the first chain (58) and the second chain (57) is provided on the first mounting frame (13).

6. The anti-bite self-discharging corn ear picking mechanism according to any one of claims 1 to 5, characterized in that: The straw divider comprises a straw chain arrangement (6) mounted on a frame (11); an octagonal star wheel (8) corresponding to the straw chain arrangement (6) is rotatably mounted on the frame (11); a top plate (16) is provided on the frame (11); the straw chain arrangement (6) is mounted on the top plate (16); and a star wheel mounting seat (15) for rotatably mounting the octagonal star wheel (8) is provided on the frame (11).

7. The anti-bite self-discharging corn ear picking mechanism according to claim 6, characterized in that: The reeling chain arrangement (6) comprises a main sprocket (62) rotatably mounted on a top plate (16); a fifth sprocket (61) and an adjusting sprocket (610) are rotatably mounted on the top plate (16); a reeling chain (63) is transmission-connected to the main sprocket (62), the fifth sprocket (61) and the adjusting sprocket (610); and the reeling chain (63) is provided with a plurality of evenly distributed shifting fingers (64) that cooperate with an octagonal star wheel (8).

8. The anti-bite self-discharging corn ear picking mechanism according to claim 7, characterized in that: A first mounting hole (18) is provided on the top plate (16), a first rotating shaft (71) is fixedly provided on the main sprocket (62), the first rotating shaft (71) is rotatably installed in the first mounting hole (18) of the top plate (16), a supporting frame (65) is fixedly provided on the top plate (16), a sliding frame (66) is slidably installed in the supporting frame (65), a mounting plate (67) is fixedly provided on the supporting frame (65), an adjusting screw (68) is threadedly installed on the mounting plate (67), an end portion of the adjusting screw (68) is rotatably installed on the sliding frame (66), and the sliding frame (66) is fixedly provided with a mounting plate (67). A fourth mounting frame (69) is provided for rotatably mounting an adjusting sprocket (610), a mounting groove (17) is provided on the top plate (16), and the fifth sprocket (61) is rotatably mounted in the mounting groove (17). The two first rotating shafts (71) are connected to each other through a transmission mechanism (7), and the transmission mechanism (7) includes a second rotating shaft (74) rotatably mounted on a transmission box (112), and second transmission gears (73) are fixedly provided at both ends of the second rotating shaft (74), and a first transmission gear (72) meshing with the two second transmission gears (73) is fixedly provided on each of the two first rotating shafts (71).

9. The anti-bite self-discharging corn ear picking mechanism according to claim 8, characterized in that: A driving component (51) for driving the first rotating shaft (71) to rotate is provided at the lower end of the top plate (16).

10. The anti-bite self-discharging corn ear picking mechanism according to claim 8, characterized in that: A third transmission gear (75) meshing with the front transmission gear (32) is fixedly provided on the second rotating shaft (74).