Multi-channel synchronous processing corn threshing equipment

Abstract

The invention relates to the technical field of corn threshing, in particular to multi-channel synchronous processing corn threshing equipment. The corn thresher comprises a basic frame, the basic frame comprises a base, a driving mechanism is arranged at the end of the base, corncobs in different diameter ranges are sequentially guided into three screen drums of a three-channel screen drum from small to large through a material distributing and guiding assembly, the diameters of threshing shaft plates in the centers of the three screen drums are sequentially increased, and the threshing efficiency is improved. The distances between the threshing shaft plates and the inner walls of the screen drums are sequentially reduced, so that the distances between the threshing shaft plates and the inner walls of the screen drums can adapt to threshing of corncobs in different diameter ranges, and the falling corncobs with different diameters can be threshed in the corresponding screen drums; according to the corn thresher, corn ears in all the channels can be evenly and efficiently threshed, meanwhile, the design of the three-channel screen drum can thresh the corn ears in different diameter ranges at the same time, and the threshing efficiency of the corn ears with different diameters is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of corn threshing, and particularly to a corn threshing device with multi-channel synchronous processing. Background Art

[0002] A corn thresher is a mechanical device for threshing dried corn cobs, mostly of the axial flow drum type.

[0003] The corn cobs enter the drum through a feeding hopper and are threshed under the impact of the high-speed rotating drum and the interaction of the corn cobs, the drum, and the concave plate. Most of the threshed grains and fine impurities pass through the holes of the concave plate and are cleaned by the air flow of a fan. The light impurities are blown out from the impurity discharge port, the grains slide out of the machine through the grain slide plate, and the ear shafts move backward along the axial direction of the drum and are discharged out of the machine through the outlet at the shaft end along the surface of the vibrating sieve. Some of the grains entrained in the ear shafts leak through the sieve holes and enter the grain slide plate to slide out of the machine.

[0004] The corn cobs enter between the drum and the concave plate and are rotationally threshed through the threshing structures such as the concave plate and the toothed plate. Since the distance between the drum and the roller shaft is fixed, it can only thresh corn cobs within a certain diameter range. When finer or coarser corn cobs are to be threshed, the distance between the concave plate and the toothed plate needs to be adjusted manually, and at the same time, the too fine or too coarse corn cobs need to be selected manually before threshing, resulting in low efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a corn threshing device with multi-channel synchronous processing to solve the problem that when rotationally threshing through the drum concave plate and the toothed plate, some overly fine or overly thick corn cobs cannot come into contact with the threshing structure due to the mismatch of diameters. The overly fine corn cobs cannot contact the threshing structure between the drum and the concave plate, and the overly thick corn cobs will squeeze the drum and the concave plate after entering, causing structural bending and blockage, and thus cannot adaptively thresh corn cobs with different diameters, resulting in low efficiency.

[0006] To achieve the above purpose, the present invention provides a corn threshing device with multi-channel synchronous processing, including a basic framework, the basic framework includes a base, and a driving mechanism is arranged at the end of the base;

[0007] A multi-channel threshing mechanism, the multi-channel threshing mechanism includes a triple threshing mechanism and a material distribution and guiding component. The triple threshing mechanism includes a three-channel sieve drum, a threshing component, and a channel communication control component. The three-channel sieve drum is arranged between the side walls of the base. The three-channel sieve drum includes three sieve drums arranged in sequence, and communication windows are arranged at adjacent positions between the sieve drums. Discharge windows are opened at the ends of all three sieve drums, and a rod outlet window is opened on the side wall of the last sieve drum part;

[0008] The material distribution and guiding assembly is arranged at the end of the base, and the material distribution and discharging ends of the material distribution and guiding assembly are respectively located above the blanking windows of the three sieve tube parts of the three-channel sieve tube. The widths of the discharging ends above the three blanking windows increase in sequence.

[0009] The driving mechanism includes a linkage belt. The threshing assembly includes threshing shaft plates. Three threshing shaft plates form a group and are respectively rotatably installed at the centers of the three sieve tubes. One sides of the three threshing shaft plates are synchronously connected through the linkage belt, so that the three threshing shaft plates perform synchronous rotation work in the three-channel sieve tube. The diameters of the threshing shaft plates at the centers of the three sieve tubes increase in sequence, and the distances between the threshing shaft plates and the inner walls of the sieve tubes decrease in sequence.

[0010] The channel connection control assembly is arranged between the connection windows of the three sieve tube parts of the three-channel sieve tube to control the connection between the sieve tubes.

[0011] As a further improvement of this technical solution, the three sieve tube parts of the three-channel sieve tube are arranged obliquely at the end of the base. A plurality of sieve holes are formed in the three sieve tubes, and the diameters of the sieve holes increase in sequence.

[0012] As a further improvement of this technical solution, the channel connection control assembly includes a control cylinder and a baffle frame. The baffle frame includes a baffle and a connecting frame connecting the baffle. The baffle is arranged between the connection windows of the sieve tube parts of the three-channel sieve tube. The control cylinder is arranged outside the side wall of the base, and the output end of the control cylinder is connected to the connecting frame.

[0013] As a further improvement of this technical solution, the material distribution and guiding assembly includes a guiding disk and blanking ports. The guiding disk is obliquely arranged at the end of the base. Three blanking ports are formed in the inclined bottom wall of the guiding disk. The diameters of the three blanking ports increase from top to bottom in sequence and are respectively located above the three sieve tube blanking windows of the three-channel sieve tube.

[0014] As a further improvement of this technical solution, the multi-channel threshing mechanism further includes an impurity separation mechanism. The impurity separation mechanism includes a vibrating sieve plate and a side blowing fan. The vibrating sieve plate is arranged between the side walls of the base and is located directly below the three-channel sieve tube. The side blowing fan is arranged on the side wall of the base and is located between the three-channel sieve tube and the vibrating sieve plate.

[0015] Wherein, the vibrating sieve plate includes an inclined sieve plate and a vibrating motor. Two ends of the inclined sieve plate are attached to the side walls of the base, and the vibrating motor is arranged outside one side wall of the inclined sieve plate.

[0016] As a further improvement of the technical solution, an elastic component is arranged between the inclined sieve plate and the side wall of the base. The elastic component includes a positioning frame and a return spring. The positioning frame is arranged between the edge of the inclined sieve plate and the side wall of the base, and the return spring is arranged between the inclined sieve plate and the positioning frame.

[0017] As a further improvement of the technical solution, the threshing component further includes a threshing tooth plate and a threshing concave plate. The threshing tooth plates are distributed in groups at multiple positions around the outside of the threshing shaft plate, and multiple threshing concave plates are arranged in a group around the inside of the sieve cylinder of the three-channel sieve cylinder;

[0018] Among them, the threshing tooth plates are alternately distributed on the outside of the threshing shaft plate, the threshing concave plates are evenly distributed on the inside of the sieve cylinder, and the moving path of the threshing tooth plates cyclically sweeps across the threshing concave plates.

[0019] As a further improvement of the technical solution, the driving mechanism further includes a driving motor and a driving belt. The driving motor is arranged at the top of the base. One end of the driving belt is connected to the output end of the driving motor, and the other end is connected to the side of the threshing shaft plate away from the linkage belt.

[0020] Compared with the prior art, the present invention provides a corn threshing device with multi-channel synchronous processing, and has the following beneficial effects:

[0021] In the present invention, the corn ears with different diameter ranges are sequentially introduced into the three sieve cylinders of the three-channel sieve cylinder from small to large through the material distribution and guiding component. Since the diameters of the threshing shaft plates at the centers of the three sieve cylinders increase in sequence, and the distance between the threshing shaft plate and the inner wall of the sieve cylinder decreases in sequence, the distance between the threshing shaft plate and the inner wall of the sieve cylinder can adapt to the threshing of corn ears with different diameter ranges, so that the corn ears with different diameters falling in can all complete threshing in the corresponding sieve cylinders, ensuring that the corn ears in each channel can complete the threshing process evenly and efficiently. At the same time, the design of the three-channel sieve cylinder can thresh the corn ears with different diameter ranges simultaneously, significantly improving the threshing efficiency for corn ears with different diameters.

[0022] In addition, after threshing is completed, the control cylinder can be started to drive the baffle frame to move downward. At this time, the baffle frame will no longer block between the communication windows of the sieve cylinder part, so that the three sieve cylinders are connected. When the remaining corn stalks move along the inner wall of the sieve cylinder, they will enter the next sieve cylinder through the communication window. As the corn stalks continue to roll, they will finally be exported through the rod outlet window of the last sieve cylinder, thereby exporting the threshed corn stalks and further improving the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 isFigure 1 Enlarged view of the structure at location A in the [device];

[0025] Figure 3 Schematic diagram of the overall structure from another perspective of the present invention;

[0026] Figure 4 Exploded view of the structures of the triple threshing mechanism, material distribution and guiding assembly, and impurity separation mechanism in the present invention;

[0027] Figure 5 Cross-sectional view of the overall structure of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the material distribution and guiding assembly in the present invention;

[0029] Figure 7 Schematic diagram of the structural distribution of the driving mechanism, three-channel sieve cylinder, and threshing assembly in the present invention;

[0030] Figure 8 Side view of the structural distribution of the driving mechanism, three-channel sieve cylinder, and threshing assembly in the present invention.

[0031] In the figure: 1. Base; 2. Driving mechanism; 21. Linkage belt; 22. Driving motor; 23. Driving belt; 3. Triple threshing mechanism; 31. Three-channel sieve cylinder; 32. Threshing assembly; 321. Threshing shaft plate; 322. Threshing tooth plate; 323. Threshing concave plate; 33. Channel connection control assembly; 331. Control cylinder; 332. Baffle frame; 4. Material distribution and guiding assembly; 41. Guiding plate; 42. Discharge opening; 5. Impurity separation mechanism; 51. Vibrating sieve plate; 511. Inclined sieve plate; 512. Vibrating motor; 52. Side blowing fan; 6. Elastic assembly; 61. Positioning frame; 62. Return spring. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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.

[0033] Refer to Figure 1-8 , a multi-channel synchronous processing corn threshing device. In order to meet the need of processing corn ears with various diameters, thresh corn ears in different diameter ranges simultaneously, improve the threshing efficiency, and reduce the need for manual operation, a basic frame is provided here, and the basic frame includes a base 1, and a driving mechanism 2 is arranged at the end of the base 1;

[0034] Multi-channel threshing mechanism, the multi-channel threshing mechanism includes a triple threshing mechanism 3 and a material distribution and guiding component 4. The triple threshing mechanism 3 includes a three-channel sieve cylinder 31, a threshing component 32 and a channel connection control component 33. The three-channel sieve cylinder 31 is arranged between the side walls of the base 1. The three-channel sieve cylinder 31 includes three sieve cylinders arranged in sequence, and communication windows are arranged at adjacent positions between the sieve cylinders. Feeding windows are opened at the ends of all three sieve cylinders, and a rod outlet window is opened on the side wall of the last sieve cylinder part;

[0035] The material distribution and guiding component 4 is arranged at the end of the base 1, and the material distribution and discharging ends of the material distribution and guiding component 4 are respectively located above the feeding windows of the three sieve cylinder parts of the three-channel sieve cylinder 31. The widths of the discharging ends above the three feeding windows increase in sequence, so that when the material distribution and guiding component 4 imports corn cobs, corn cobs in different diameter ranges fall into the three sieve cylinders in sequence from small to large;

[0036] The driving mechanism 2 includes a linkage belt 21. The threshing component 32 includes threshing shaft plates 321. Three threshing shaft plates 321 are in a group and are respectively rotatably installed at the centers of the three sieve cylinders. One sides of the three threshing shaft plates 321 are synchronously connected through the linkage belt 21, so that the three threshing shaft plates 321 perform synchronous rotation work in the three-channel sieve cylinder 31. The diameters of the threshing shaft plates 321 at the centers of the three sieve cylinders increase in sequence, and the distances between the threshing shaft plates 321 and the inner walls of the sieve cylinders decrease in sequence. As Figure 5 shown, when corn cobs from small to large fall into the three sieve cylinders respectively, and the distances between the threshing shaft plates 321 and the inner walls of the sieve cylinders can adapt to the threshing of corn cobs in different diameter ranges, so that the corn cobs of different diameters that fall can complete threshing in the corresponding sieve cylinders, thus helping the too thick and too thin corn cobs to complete threshing;

[0037] The channel connection control component 33 is arranged between the communication windows adjacent to the three sieve cylinder parts of the three-channel sieve cylinder 31 for controlling the connection between the sieve cylinders. After the corn cobs are threshed, it can control the three sieve cylinder parts to be connected, so that the corn stalk parts can pass through the communication windows to the next sieve cylinder and finally be exported through the rod outlet window of the last sieve cylinder.

[0038] The three sieve cylinder parts of the three-channel sieve cylinder 31 are arranged obliquely at the end of the base 1. A plurality of sieve holes are opened on the three sieve cylinders, and the diameters of the sieve holes increase in sequence. Since the diameters of the corn kernels of the too thick corn cobs are also larger, and the diameters of the corn kernels of the too thin corn cobs are smaller, the diameters of the sieve holes on the sieve cylinders increase in sequence, which can correspond to corn kernels in different diameter ranges, ensure the smooth falling of the threshed corn kernels, and improve the threshing quality.

[0039] The channel connection control component 33 includes a control cylinder 331 and a baffle plate frame 332. The baffle plate frame 332 includes a baffle plate and a connecting frame connected to the baffle plate. The baffle plate is arranged between the sieve tube part communication windows of the three-channel sieve tube 31. The control cylinder 331 is arranged outside the side wall of the base 1, and the output end of the control cylinder 331 is connected to the connecting frame. As Figure 3 and Figure 4 shown, the control cylinder 331 can synchronously drive the connecting frame and the baffle plate to move up and down, so as to form a controllable occlusion of the communication window between the sieve tube parts of the three-channel sieve tube 31. When needed, the three sieve tube parts can be connected through the communication window. At this time, with the rotation of the threshing shaft plate 321, the corn stalks will continue to roll along the inner wall of the sieve tube. When the corn stalks pass through the position of the communication window, they will enter the next sieve tube in sequence. When they enter the last sieve tube and continue to move, they will be exported through the rod outlet window of the last sieve tube, which is convenient for exporting the threshed corn stalks.

[0040] The material distribution and guiding component 4 includes a guiding disk 41 and a blanking port 42. The guiding disk 41 is inclinedly arranged at the end of the base 1. A guiding structure for guiding the corn cobs to roll down along the bottom wall of the guiding disk 41 is arranged inside the guiding disk 41. Three blanking ports 42 are opened on the inclined bottom wall of the guiding disk 41. The diameters of the three blanking ports 42 increase sequentially from top to bottom, and are respectively located above the three sieve tube blanking windows of the three-channel sieve tube 31. As Figure 6 shown, when the corn cobs in different diameter ranges enter through the opening of the guiding disk 41, they roll down under the guidance of the guiding structure. At this time, the rolling corn cobs pass through the three blanking ports 42 in sequence. At this time, the corn cobs that meet the diameter range will fall through the blanking port 42 into the lower blanking window and enter the sieve tube, and can fall from small to large in sequence, helping to quickly distinguish the corn cobs in different diameter ranges and enter the triple threshing mechanism 3 for threshing, and can accurately distinguish and guide the corn cobs in different diameter ranges into the corresponding sieve tubes, avoiding the cumbersome and error of manual sorting.

[0041] The multi-channel threshing mechanism also includes an impurity separation mechanism 5. The impurity separation mechanism 5 includes a vibrating sieve plate 51 and a side blowing fan 52. The vibrating sieve plate 51 is arranged between the side walls of the base 1 and is located directly below the three-channel sieve tube 31. The side blowing fan 52 is arranged on the side wall of the base 1 and is located between the three-channel sieve tube 31 and the vibrating sieve plate 51. When the threshed corn kernels and some impurities fall, the lighter impurities can be blown out by the side blowing fan 52 during the falling process;

[0042] Among them, the vibrating sieve plate 51 includes an inclined sieve plate 511 and a vibrating motor 512. The two ends of the inclined sieve plate 511 are attached to the side walls of the base 1, and the vibrating motor 512 is arranged outside one side wall of the inclined sieve plate 511. The heavier solid impurities mixed with corn kernels fall onto the inclined sieve plate 511. At this time, under the vibration of the vibrating motor 512, the fixed impurities fall through the sieve holes of the inclined sieve plate 511, while the corn kernels fall along the inclined plane of the inclined sieve plate 511 under the vibration, thus helping to remove the impurities in the corn kernels.

[0043] An elastic component 6 is arranged between the inclined sieve plate 511 and the side wall of the base 1. The elastic component 6 includes a positioning frame 61 and a return spring 62. The positioning frame 61 is arranged between the edge of the inclined sieve plate 511 and the side wall of the base 1, and the return spring 62 is arranged between the inclined sieve plate 511 and the positioning frame 61 so that when the inclined sieve plate 511 vibrates, it can help the inclined sieve plate 511 vibrate through the positioning effect of the positioning frame 61 and the elastic force of the return spring 62.

[0044] The threshing component 32 further includes threshing tooth plates 322 and a threshing concave plate 323. The threshing tooth plates 322 are distributed in groups at multiple positions around the outside of the threshing shaft plate 321, and multiple threshing concave plates 323 are arranged in a group around the inside of the sieve cylinder of the three-channel sieve cylinder 31.

[0045] Among them, the threshing tooth plates 322 are alternately distributed outside the threshing shaft plate 321, the threshing concave plates 323 are evenly distributed inside the sieve cylinder, and the moving path of the threshing tooth plates 322 cyclically sweeps across the threshing concave plates 323. When the corn ear enters the sieve cylinder, at this time, with the rotation of the threshing shaft plate 321, it can drive the alternate sweeping of the threshing tooth plates 322 and the threshing concave plates 323, so that the corn ear rolls along the inner wall of the sieve cylinder under the rotation of the threshing shaft plate 321 and the threshing tooth plates 322 and is alternately swept by the threshing tooth plates 322 and the threshing concave plates 323 to form a threshing effect.

[0046] The driving mechanism 2 further includes a driving motor 22 and a driving belt 23. The driving motor 22 is arranged at the top of the base 1. One end of the driving belt 23 is connected to the output end of the driving motor 22, and the other end is connected to the side of the threshing shaft plate 321 away from the linkage belt 21, so that the driving motor 22 can drive the rotation of one threshing shaft plate 321 through the driving belt 23 and drive the rotation of other threshing shaft plates 321 through the linkage effect of the linkage belt 21.

[0047] In addition, the entire threshing process is highly automated, without the need for manual adjustment of the distance between the threshing part and the sieve cylinder part, reducing manual intervention and improving production efficiency.

[0048] Working principle: Start the drive motor 22, and drive the threshing shaft plate 321 to rotate through the drive belt 23. The three threshing shaft plates 321 can form synchronous rotation through the linkage effect of the linkage belt 21, so that the three threshing shaft plates 321 rotate synchronously in the three sieve cylinders of the three-channel sieve cylinder 31. At this time, the dried corn ears are put in through the opening of the material guiding plate 41. Under the action of the guiding mechanism inside the material guiding plate 41, the corn ears roll down along the bottom wall of the material guiding plate 41. The rolling corn ears will successively pass through three blanking ports 42 with widths increasing from small to large. The corn ears within the corresponding diameter range will fall through the blanking port 42 into the lower blanking window and enter the lower sieve cylinder, enabling the corn ears within different diameter ranges to fall into the three sieve cylinders of the three-channel sieve cylinder 31 in sequence from small to large. At this time, since the distances between the inner walls of the three sieve cylinders and the threshing shaft plate 321 also increase from small to large, corresponding to the corn ears within different diameter ranges, as the threshing shaft plate 321 rotates, it can drive the threshing tooth plate 322 to alternately sweep across the threshing concave plate 323, enabling the corn ears within different diameter ranges to roll along the inner wall of the sieve cylinder under the rotational action of the threshing shaft plate 321 and the threshing tooth plate 322, and through the alternating sweeping of the threshing tooth plate 322 and the threshing concave plate 323, to form a rotational threshing effect. The corn kernels and some impurities simultaneously fall through the sieve holes of the sieve cylinder. The lighter impurities can be laterally blown out by the side-blowing fan 52 during the falling process. For the solid impurities and corn kernels that fall onto the inclined sieve plate 511, through the vibration action of the vibration motor 512 on the inclined sieve plate 511, the fixed impurities fall through the sieve holes of the inclined sieve plate 511, while the corn kernels fall along the inclined surface of the inclined sieve plate 511 under the vibration action. After threshing is completed, start the control cylinder 331 to drive the baffle frame 332 to move downward. At this time, the baffle frame 332 will no longer block between the communication windows of the sieve cylinder part, enabling the three sieve cylinders to communicate. When the remaining corn stalks move along the inner wall of the sieve cylinder and pass through the position of the communication window, they will enter the next sieve cylinder. As the corn stalks continue to roll, they will finally be exported through the rod outlet window of the last sieve cylinder, thereby exporting the threshed corn stalks.

[0049] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A corn threshing device with multi-channel synchronous processing, characterized in that, Comprising: A basic framework, the basic framework includes a base (1), and a driving mechanism (2) is provided at the end of the base (1); A multi-channel threshing mechanism, the multi-channel threshing mechanism includes a triple threshing mechanism (3) and a material distribution and guiding assembly (4), the triple threshing mechanism (3) includes a three-channel sieve cylinder (31), a threshing assembly (32) and a channel connection control assembly (33), the three-channel sieve cylinder (31) is arranged between the side walls of the base (1), the three-channel sieve cylinder (31) includes three sieve cylinders arranged in sequence, and communication windows are provided at adjacent positions between the sieve cylinders, and blanking windows are provided at the ends of all three sieve cylinders, and a rod outlet window is provided on the side wall of a part of the last sieve cylinder; The material distribution and guiding assembly (4) is arranged at the end of the base (1), and the material distribution and discharging ends of the material distribution and guiding assembly (4) are respectively located above the blanking windows of the three sieve cylinder parts of the three-channel sieve cylinder (31), and the widths of the discharging ends above the three blanking windows increase in sequence; The driving mechanism (2) includes a linkage belt (21), the threshing assembly (32) includes threshing shaft plates (321), three threshing shaft plates (321) are in a group and are respectively rotatably installed at the centers of the three sieve cylinders, and one sides of the three threshing shaft plates (321) are synchronously connected through the linkage belt (21), so that the three threshing shaft plates (321) perform synchronous rotation work in the three-channel sieve cylinder (31), the diameters of the threshing shaft plates (321) at the centers of the three sieve cylinders increase in sequence, and the distances between the threshing shaft plates (321) and the inner walls of the sieve cylinders decrease in sequence; The channel connection control assembly (33) is arranged between the communication windows of the three sieve cylinder parts of the three-channel sieve cylinder (31) to control the connection between the sieve cylinders.

2. The corn threshing device with multi-channel synchronous processing according to claim 1, characterized in that, The three sieve cylinder parts of the three-channel sieve cylinder (31) are arranged obliquely at the end of the base (1), and a plurality of sieve holes are provided on the three sieve cylinders, and the diameters of the sieve holes increase in sequence.

3. A corn threshing device with multi-channel synchronous processing according to claim 1, characterized in that, The channel connection control assembly (33) includes a control cylinder (331) and a baffle frame (332), the baffle frame (332) includes a baffle and a connecting frame connecting the baffle, the baffle is arranged between the communication windows of the sieve cylinder parts of the three-channel sieve cylinder (31), the control cylinder (331) is arranged outside the side wall of the base (1), and the output end of the control cylinder (331) is connected to the connecting frame.

4. A corn threshing device with multi-channel synchronous processing according to claim 1, characterized in that, The material distribution and guiding assembly (4) includes a guiding plate (41) and a blanking port (42), the guiding plate (41) is obliquely arranged at the end of the base (1), three blanking ports (42) are provided on the inclined bottom wall of the guiding plate (41), the diameters of the three blanking ports (42) increase from top to bottom in sequence, and are respectively located above the blanking windows of the three sieve cylinders of the three-channel sieve cylinder (31).

5. A corn threshing device with multi-channel synchronous processing according to claim 1, characterized in that, The multi-channel threshing mechanism further includes an impurity separation mechanism (5). The impurity separation mechanism (5) includes a vibrating sieve plate (51) and a side blowing fan (52). The vibrating sieve plate (51) is arranged between the side walls of the base (1) and is located directly below the three-channel sieve cylinder (31). The side blowing fan (52) is arranged on the side wall of the base (1) and is located between the three-channel sieve cylinder (31) and the vibrating sieve plate (51). Among them, the vibrating sieve plate (51) includes an inclined sieve plate (511) and a vibrating motor (512). Both ends of the inclined sieve plate (511) are attached to the side walls of the base (1), and the vibrating motor (512) is arranged outside one side wall of the inclined sieve plate (511).

6. A corn threshing device with multi-channel synchronous processing according to claim 5, characterized in that, An elastic component (6) is arranged between the inclined sieve plate (511) and the side wall of the base (1). The elastic component (6) includes a positioning frame (61) and a return spring (62). The positioning frame (61) is arranged between the edge of the inclined sieve plate (511) and the side wall of the base (1), and the return spring (62) is arranged between the inclined sieve plate (511) and the positioning frame (61).

7. A corn threshing device with multi-channel synchronous processing according to claim 1, characterized in that, The threshing component (32) further includes a threshing tooth plate (322) and a threshing concave plate (323). The threshing tooth plates (322) are distributed in groups at multiple positions around the outside of the threshing shaft plate (321), and multiple threshing concave plates (323) are arranged in a group around the inner side of the sieve cylinder of the three-channel sieve cylinder (31). Among them, the threshing tooth plates (322) are alternately distributed outside the threshing shaft plate (321), the threshing concave plates (323) are evenly distributed inside the sieve cylinder, and the moving path of the threshing tooth plates (322) cyclically sweeps across the threshing concave plates (323).

8. A corn threshing device with multi-channel synchronous processing according to claim 1, characterized in that, The driving mechanism (2) further includes a driving motor (22) and a driving belt (23). The driving motor (22) is arranged at the top of the base (1). One end of the driving belt (23) is connected to the output end of the driving motor (22), and the other end is connected to the side of the threshing shaft plate (321) away from the linkage belt (21).

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