Air suction type corn sowing anti-blocking hole seed metering device

Abstract

The present application relates to the technical field of seeding equipment, and proposes an air-suction type corn seeding anti-blocking hole seed metering device, which comprises a mounting table, a negative pressure adsorption mechanism, a seed metering mechanism, a transmission mechanism, a seed box mechanism, an anti-blocking mechanism and a moving mechanism. The negative pressure adsorption mechanism is installed on the mounting table, the seed metering mechanism is installed on the mounting table, the seed metering mechanism is located below the negative pressure adsorption mechanism, the transmission mechanism is installed on one side of the top end of the mounting table and is used to drive the seed metering mechanism, the seed box mechanism is located below the seed metering mechanism, the anti-blocking mechanism is installed on the other side of the top end of the mounting table, and the moving mechanism is installed at the bottom end of the mounting table. Through the above technical solution, the problem that the air-suction type seed metering device in the prior art may be blocked due to the seed characteristics, negative pressure system, mechanical structure and operation conditions, such as the difference between the particle sizes of corn seeds being too large, the water content of the seeds being too high, and the seeds containing impurities such as straw fragments and soil blocks, which can cause the corn seeds to be blocked in the seed metering disc, hinder the normal flow of the seeds, and affect the normal progress of the seeding work.

Description

Technical Field

[0001] This invention relates to the field of sowing equipment technology, specifically to a pneumatic corn sowing anti-clogging seed metering device. Background Technology

[0002] The air suction seed metering device works by utilizing the suction force generated by the air vacuum. Its main working component is a vertical seed metering disc with suction holes. There is a vacuum chamber on the back of the seed metering disc, which is connected to the air intake of the blower, creating a negative pressure inside the vacuum chamber. The other side of the seed metering disc is the seed chamber. When the seed metering disc rotates, under the negative pressure of the vacuum chamber, the seeds are adsorbed onto the suction holes and rotate with the seed metering disc. When the seeds rotate out of the vacuum chamber, they are no longer under negative pressure and fall into the seed furrow by their own weight or under the action of the seed pusher. The pneumatic corn seed metering device enables single-seed precision sowing, making corn seeds sown more evenly and rationally in the field. It can also adapt to different varieties of corn seeds, improving the versatility of the seeder, reducing manual labor intensity, and improving the efficiency of sowing operations. Due to the working principle of the air-suction seed metering device, factors such as seed characteristics, negative pressure system, mechanical structure and operating conditions can all cause blockage of the seed metering device. For example, if the corn seeds have a large difference in particle size, too high seed moisture content, or contain impurities such as straw fragments or soil clods, the corn seeds may become blocked in the seed metering tray, hindering the normal flow of seeds and affecting the normal progress of sowing. Summary of the Invention

[0003] This invention proposes a pneumatic suction-type corn seed metering device to prevent clogging. It solves the problem that in related technologies, pneumatic suction seed metering devices can become clogged due to factors such as seed characteristics, negative pressure system, mechanical structure, and operating conditions. For example, excessive differences in corn seed size, high seed moisture content, and impurities such as straw fragments and soil clumps mixed in the seeds can all cause corn seeds to clog the seed metering tray, hindering normal seed flow and affecting the normal sowing process.

[0004] The technical solution of the present invention is as follows: A pneumatic suction-type corn seed metering device with anti-clogging hole includes a mounting platform, a negative pressure adsorption mechanism, a seed metering mechanism, a transmission mechanism, a seed box mechanism, an anti-clogging mechanism, and a moving mechanism. The negative pressure adsorption mechanism is installed on the mounting platform; The seed metering mechanism is installed on the mounting platform and is located below the negative pressure adsorption mechanism; The transmission mechanism is installed on one side of the top of the mounting platform and is used to drive the seed metering mechanism; The seed box mechanism is located below the seed dispensing mechanism; The anti-blocking mechanism is installed on the other side of the top of the mounting platform; The moving mechanism is installed at the bottom of the mounting platform.

[0005] Preferably, the negative pressure adsorption mechanism includes a support platform, a vacuum cylinder, and a blower; The support platform is fixedly connected to the mounting platform; The vacuum cylinder is fixedly connected to one bottom end of the support platform; The exhaust fan is fixedly connected to the top of the support platform, and the input end of the exhaust fan is connected to the vacuum cylinder.

[0006] More preferably, the seed dispensing mechanism includes a seed dispensing disc, an adsorption channel, an adsorption groove, an air vent, and a feeding assembly; The seed metering disc is rotatably connected to the bottom end of the vacuum cylinder, and the seed metering disc is in communication with the vacuum cylinder; The adsorption channel is provided in multiple ways, and all of the adsorption channels are opened on the seed metering plate. The adsorption tank is provided in multiple ways, and the multiple adsorption tanks are all opened on the seed metering plate. The multiple adsorption tanks are respectively located at the bottom end of the multiple adsorption channels. The ventilation channels are provided in multiple ways, and each of the multiple ventilation channels is opened on the side wall of the seed metering tray. The multiple ventilation channels are respectively connected to the multiple adsorption channels. The feeding assembly is installed on the seed metering tray.

[0007] Furthermore, the feeding assembly includes a sealing ring, a venting groove, a seed discharging pipe, and a seed inlet funnel; The seed metering disc is rotatably connected within the sealing ring; The vent groove is formed on the side wall of the sealing ring, and the vent groove cooperates with the plurality of vent channels; The seeding pipe is connected to the mounting platform; The seed inlet funnel is connected to the top of the seed discharge tube, and the opening of the seed inlet funnel is located below the plurality of ventilation slots.

[0008] Furthermore, the transmission mechanism includes a gear ring, a second support platform, a gear, and a first motor; The toothed ring is fitted onto the outer wall of the seed metering disc; The second support platform is fixedly connected to one side of the mounting platform; The gear is rotatably connected to the second support platform, and the gear engages with the gear ring; The motor is fixedly connected to the support platform, and the output end of the motor is fixedly connected to the gear.

[0009] Furthermore, the seed box mechanism includes a seed box body, a conveyor shaft, a conveyor belt, a motor, and a material delivery assembly; The seed box body is fixedly connected to the mounting platform, and the seed box body is located below the seed metering tray; The transmission shaft is provided in two parts, and both transmission shafts are rotatably connected to the seed box body; The conveyor belt is fitted between the two conveyor shafts; Two motors are provided, and both motors are fixedly connected to the side wall of the seed box body. The output ends of the two motors are respectively fixedly connected to the two transmission shafts. The material delivery assembly is mounted on the conveyor belt.

[0010] Based on the above scheme, preferably, the feeding component includes a seed picking plate, a seed feeding plate, a holding trough, and a seed leakage hole; Multiple seed-collecting plates are provided, and all of the seed-collecting plates are fixedly connected to the conveyor belt. The seed delivery plate is provided in multiple ways, and the multiple seed delivery plates are respectively fixedly connected to the multiple seed taking plates; The seed-feeding plate has multiple seed-holding slots. The seed-leaking plate has multiple seed-leaking holes.

[0011] Based on the above solution, even better, the anti-blocking mechanism includes a support platform, a blower, a telescopic tube, a sealing gasket, and a reciprocating moving assembly; The support platform is fixedly connected to the side of the mounting platform away from the transmission mechanism; The hair dryer is fixedly connected to the support platform three, and the output end of the hair dryer is opposite to the ventilation groove. One end of the telescopic tube is connected to the output end of the hair dryer; The sealing gasket is fixedly connected to the other end of the telescopic tube, and the sealing gasket cooperates with the vent groove; The reciprocating moving component is installed between the support platform and the sealing gasket.

[0012] Based on the above scheme, the reciprocating moving component further includes a mounting groove, a connecting plate, a threaded rod, and a motor. The mounting slot is formed on the support platform three; The connecting plate is slidably connected within the mounting groove; The threaded rod is rotatably connected in the mounting groove, and the threaded rod is threadedly connected to the connecting plate; The motor is fixedly connected to the support platform, and the output end of the motor is fixedly connected to the threaded rod.

[0013] Based on the above solution, the moving mechanism further includes a mounting box, wheels, a motor, and a protective plate; The mounting box is provided in two parts, and both mounting boxes are fixedly connected to the bottom end of the mounting platform; The wheel is provided with four wheels, which are divided into two groups, and the two groups of wheels are rotatably connected to the two mounting boxes respectively. Two motors are provided, and the two motors are fixedly connected to the bottom end of the mounting platform. The output ends of the two motors are respectively fixedly connected to the two wheels arranged symmetrically on the axis. The protective plate is fixedly connected to the bottom end of the mounting platform, and the two motors arranged symmetrically on the axis are located inside the protective plate.

[0014] The working principle and beneficial effects of this invention are as follows: 1. In this invention, when the air-suction type corn seed metering device is used to prevent clogging, the corn seeds are first placed into the seed box mechanism. The seed box mechanism supplies the corn seeds to the negative pressure adsorption mechanism. After adsorption, the transmission mechanism drives the seed metering mechanism to rotate. As the seed metering mechanism rotates, when it reaches the position where the negative pressure is lost, the corn seeds fall into the furrow through the seed metering mechanism. During this period, the anti-clogging mechanism continuously blows air into the holes of the seed metering mechanism, preventing multiple corn seeds from being sucked in or from being blocked due to high seed moisture without affecting the negative pressure inside the seed metering mechanism. The moving mechanism drives the wheels to rotate through the motor to achieve sowing in the furrow. 2. In this invention, when the seed box mechanism provides corn seeds to the negative pressure adsorption mechanism, it can simultaneously screen small impurities and supply corn seeds in individual pieces, which can effectively reduce clogging. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another direction; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the negative pressure adsorption mechanism of the present invention; Figure 5 This is a schematic diagram of the seed metering mechanism of the present invention; Figure 6 This is a schematic diagram of the transmission mechanism structure of the present invention; Figure 7 This is a schematic diagram of the seed box mechanism of the present invention; Figure 8 This is a schematic diagram of the anti-blocking mechanism of the present invention; Figure 9 This is a schematic diagram of the bottom structure of the moving mechanism of the present invention; Figure 10 This is a schematic diagram of the bottom structure of the feeding assembly of the present invention; Figure 11 This is a schematic diagram of the material delivery component of the present invention; Figure 12 This is a schematic diagram of the structure of the sealing ring and the seed metering disc of the present invention. Figure 13 This is a schematic diagram of the structure of the vacuum cylinder, seed metering disc, and seed metering tube of the present invention. Figure 14 This is a partial cross-sectional view of the box body of the present invention; Figure 15 This is an enlarged structural diagram of point A in the present invention.

[0017] In the diagram: 1. Mounting platform; 2. Support platform one; 3. Vacuum cylinder; 4. Exhaust fan; 5. Seed dispensing tray; 6. Adsorption channel; 7. Adsorption tank; 8. Ventilation channel; 9. Sealing ring; 10. Ventilation slot; 11. Seed dispensing pipe; 12. Seed inlet funnel; 13. Gear ring; 14. Support platform two; 15. Gear; 16. Motor one; 17. Seed box body; 18. Conveyor shaft; 19. Conveyor belt; 20. Motor two; 21. Seed picking plate; 22. Seed feeding plate; 23. Holding tank; 24. Seed leakage hole; 25. Support platform three; 26. Blower; 27. Telescopic tube; 28. Sealing gasket; 29. ​​Mounting slot; 30. Connecting plate; 31. Threaded rod; 32. Motor three; 33. Mounting box; 34. Wheel; 35. Motor four; 36. Protective plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-15As shown, this embodiment proposes a pneumatic suction-type corn seed metering device with anti-clogging holes, including a mounting platform 1, a negative pressure adsorption mechanism, a seed metering mechanism, a transmission mechanism, a seed box mechanism, an anti-clogging mechanism, and a moving mechanism. The negative pressure adsorption mechanism is mounted on the mounting platform 1, and the seed metering mechanism is mounted on the mounting platform 1, located below the negative pressure adsorption mechanism. The transmission mechanism is mounted on one side of the top of the mounting platform 1 to drive the seed metering mechanism. The seed box mechanism is located below the seed metering mechanism. The anti-clogging mechanism is mounted on the other side of the top of the mounting platform 1, and the moving mechanism is mounted at the bottom of the mounting platform 1. When using the air-suction type corn seed metering device to prevent clogging, the corn seeds are first placed into the seed box mechanism. The seed box mechanism can screen out small impurities and separate the corn seeds into individual seeds for the negative pressure adsorption mechanism. After adsorption, the transmission mechanism drives the seed metering mechanism to rotate. As the seed metering mechanism rotates, when it reaches a position without negative pressure, the corn seeds fall into the furrow through the seed metering mechanism. During this process, the anti-clogging mechanism continuously blows air into the holes of the seed metering mechanism to prevent multiple corn seeds from being sucked in or from being blocked due to high seed moisture. The moving mechanism drives the wheels 34 to rotate via a motor to achieve sowing in the furrow.

[0020] The negative pressure adsorption mechanism includes a support platform 2, a vacuum cylinder 3, and an exhaust fan 4. The support platform 2 is fixedly connected to the mounting platform 1, the vacuum cylinder 3 is fixedly connected to the bottom of the support platform 2, and the exhaust fan 4 is fixedly connected to the top of the support platform 2. The input end of the exhaust fan 4 is connected to the vacuum cylinder 3. The exhaust fan 4 extracts the air from the vacuum cylinder 3, so that a negative pressure is formed in the sealed vacuum cylinder 3 to adsorb the corn seeds.

[0021] Secondly, the seed dispensing mechanism includes a seed dispensing disc 5, adsorption channels 6, adsorption grooves 7, ventilation channels 8, and a feeding assembly. The seed dispensing disc 5 is rotatably connected to the bottom end of the vacuum cylinder 3 and is connected to the vacuum cylinder 3. Multiple adsorption channels 6 are provided, and multiple adsorption channels 6 are opened on the seed dispensing disc 5. Multiple adsorption grooves 7 are provided, and multiple adsorption grooves 7 are opened on the seed dispensing disc 5. The multiple adsorption grooves 7 are located at the bottom end of the multiple adsorption channels 6. Multiple ventilation channels 8 are provided, and multiple ventilation channels 8 are opened on the side wall of the seed dispensing disc 5 and are connected to the multiple adsorption channels 6. The feeding assembly is installed on the seed dispensing disc 5. The adsorption channels 6 on the seed dispensing disc 5 adsorb corn seeds. When the ventilation channel 8 on the side wall of the seed dispensing disc 5 rotates to the ventilation groove 10, the negative pressure is instantly lost, and the corn seeds in the adsorption channel 6 connected to the ventilation channel 8 fall down and fall into the furrow through the feeding assembly.

[0022] Furthermore, the feeding assembly includes a sealing ring 9, a ventilation groove 10, a seed metering pipe 11, and a seed inlet funnel 12. The seed metering disc 5 is rotatably connected inside the sealing ring 9. The ventilation groove 10 is opened on the side wall of the sealing ring 9 and cooperates with multiple ventilation channels 8. The seed metering pipe 11 is connected to the mounting platform 1, and the seed inlet funnel 12 is connected to the top of the seed metering pipe 11. The opening of the seed inlet funnel 12 is located below the multiple ventilation grooves 10.

[0023] The transmission mechanism includes a gear ring 13, a second support platform 14, a gear 15, and a first motor 16. The gear ring 13 is sleeved on the outer wall of the seed metering disc 5. The second support platform 14 is fixedly connected to one side of the mounting platform 1. The gear 15 is rotatably connected to the second support platform 14 and engages with the gear ring 13. The first motor 16 is fixedly connected to the second support platform 14, and the output end of the first motor 16 is fixedly connected to the gear 15. When the first motor 16 is started, it drives the gear 15 to rotate, thereby driving the gear ring 13 to rotate, thus driving the seed metering disc 5 to rotate.

[0024] Secondly, the seed box mechanism includes a seed box body 17, a conveyor shaft 18, a conveyor belt 19, a second motor 20, and a feeding component. The seed box body 17 is fixedly connected to the mounting platform 1 and is located below the seed dispensing tray 5. There are two conveyor shafts 18, both of which are rotatably connected inside the seed box body 17. The conveyor belt 19 is fitted between the two conveyor shafts 18. There are two second motors 20, both of which are fixedly connected to the side wall of the seed box body 17. The output ends of the two second motors 20 are respectively fixedly connected to the two conveyor shafts 18. The feeding component is installed on the conveyor belt 19. When the second motor 20 is started, it drives the conveyor shaft 18 to rotate, thereby driving the conveyor belt 19. During the movement of the conveyor belt 19, the feeding component scoops up the corn seeds and lifts them to a high position where they are adsorbed by the adsorption channels 6.

[0025] Furthermore, the feeding assembly includes a seed-collecting plate 21, a seed-feeding plate 22, a holding trough 23, and seed-leaking holes 24. Multiple seed-collecting plates 21 are provided, each fixedly connected to the conveyor belt 19. Multiple seed-feeding plates 22 are provided, each fixedly connected to the seed-collecting plates 21. Multiple holding troughs 23 are provided, with multiple holding troughs 23 on each seed-feeding plate 22. Multiple seed-leaking holes 24 are provided, with multiple seed-leaking holes 24 on each seed-collecting plate 21. When seeds fall onto the seed-collecting plate 21, most corn seeds fall through the seed-leaking holes 24, while some corn seeds fall into the holding trough 23. As the conveyor belt 19 is raised, these seeds are absorbed by the adsorption pipes, reducing the probability of multiple corn seeds being adsorbed onto the adsorption channels 6, effectively reducing the blockage of the adsorption channels 6.

[0026] The anti-blocking mechanism includes a support platform 25, a blower 26, a telescopic tube 27, a sealing gasket 28, and a reciprocating moving assembly. The support platform 25 is fixedly connected to the side of the mounting platform 1 away from the transmission mechanism. The blower 26 is fixedly connected to the support platform 25, with its output end opposite to the vent 10. One end of the telescopic tube 27 is connected to the output end of the blower 26. The sealing gasket 28 is fixedly connected to the other end of the telescopic tube 27 and mates with the vent 10. The reciprocating moving assembly is installed between the support platform 25 and the sealing gasket. Between points 28 and 28, the blower 26 is activated, blowing air through the telescopic tube 27. When the ventilation channel 8 rotates to connect with the ventilation groove 10, the negative pressure disappears, and the corn falls into the seed metering tube 11. After the corn falls into the seed metering tube 11, the reciprocating moving component is activated, causing the telescopic tube 27 to extend and the sealing gasket 28 to press against the sealing ring 9. Then, air is blown into the ventilation groove 10. At this time, the airflow can blow out the blocked corn seeds, and the airflow also sweeps the ventilation channel 8 and the seed metering tube 11, blowing out the impurities adhering to the tube wall and reducing the blockage of the channel.

[0027] Secondly, the reciprocating moving assembly includes a mounting groove 29, a connecting plate 30, a threaded rod 31, and a motor 32. The mounting groove 29 is formed on the support platform 35. The connecting plate 30 is slidably connected in the mounting groove 29. The threaded rod 31 is rotatably connected in the mounting groove 29 and is threadedly connected to the connecting plate 30. The motor 32 is fixedly connected to the support platform 35. The output end of the motor 32 is fixedly connected to the threaded rod 31. When the motor 32 is started, it drives the threaded rod 31 to rotate, thereby driving the connecting plate 30, which is threadedly connected to it, to move. This, in turn, drives the sealing gasket 28, which is fixedly connected to the connecting plate 30, to move, thereby realizing the extension and retraction of the telescopic tube 27.

[0028] Finally, the moving mechanism includes mounting boxes 33, wheels 34, motors 35, and guard plates 36. There are two mounting boxes 33, both of which are fixedly connected to the bottom of the mounting platform 1. There are four wheels 34, which are divided into two groups. The two groups of wheels 34 are rotatably connected to the two mounting boxes 33 respectively. There are two motors 35, which are fixedly connected to the bottom of the mounting platform 1. The output ends of the two motors 35 are fixedly connected to the two wheels 34 arranged symmetrically on the axis. The guard plate 36 is fixedly connected to the bottom of the mounting platform 1. The two motors 35 arranged symmetrically on the axis are located inside the guard plate 36. The motors 35 drive the wheels 34 to rotate, thereby driving the wheels 34 to rotate and moving the entire equipment. The guard plate 36 is used to protect the motors 35.

[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic suction-type corn seed metering device for preventing hole clogging, comprising a mounting platform (1), characterized in that, Also includes: A negative pressure adsorption mechanism is installed on the mounting platform (1); A seed metering mechanism is installed on the mounting platform (1) and is located below the negative pressure adsorption mechanism; A transmission mechanism is installed on one side of the top of the mounting platform (1) and is used to drive the seeding mechanism; A seed box mechanism, located below the seed dispensing mechanism; The seed box mechanism includes: Seed box body (17), the seed box body (17) is fixedly connected to the mounting platform (1); Two transmission shafts (18) are provided, and both transmission shafts (18) are rotatably connected inside the seed box body (17); A conveyor belt (19) is fitted between the two conveyor shafts (18); Two motors (20) are provided, and both motors (20) are fixedly connected to the side wall of the seed box body (17). The output ends of the two motors (20) are fixedly connected to the two transmission shafts (18) respectively. A material delivery assembly is mounted on the conveyor belt (19); The feeding component includes: Seed picking plate (21), there are multiple seed picking plates (21), and multiple seed picking plates (21) are fixedly connected to the conveyor belt (19); A seed delivery plate (22) is provided in multiple ways, and the multiple seed delivery plates (22) are respectively fixedly connected to the multiple seed taking plates (21); The holding trough (23) is provided in multiple ways, and each of the seed delivery plates (22) is provided with multiple holding troughs (23). The seed-leaking holes (24) are provided in multiple ways, and each seed-taking plate (21) has multiple seed-leaking holes (24). An anti-blocking mechanism is installed on the other side of the top of the mounting platform (1); A moving mechanism is installed at the bottom end of the mounting platform (1).

2. The air-suction type corn seed metering device for preventing hole clogging according to claim 1, characterized in that, The negative pressure adsorption mechanism includes: Support platform 1 (2), which is fixedly connected to the mounting platform (1); Vacuum cylinder (3), the vacuum cylinder (3) is fixedly connected to the bottom end of the support platform (2); The exhaust fan (4) is fixedly connected to the top of the support platform (2), and the input end of the exhaust fan (4) is connected to the vacuum cylinder (3).

3. The air-suction type corn seed metering device for preventing hole clogging according to claim 2, characterized in that, The seeding mechanism includes: Seed metering tray (5), the seed metering tray (5) is rotatably connected to the bottom end of the vacuum cylinder (3), the seed metering tray (5) is connected to the vacuum cylinder (3), and the seed box body (17) is located below the seed metering tray (5); Adsorption channels (6) are provided in multiple ways, and all of the multiple adsorption channels (6) are opened on the seed dispensing plate (5); Adsorption tank (7), multiple adsorption tanks (7) are provided, and multiple adsorption tanks (7) are opened on the seed metering plate (5), and multiple adsorption tanks (7) are respectively located at the bottom end of multiple adsorption channels (6); Ventilation channels (8) are provided in multiple ways. The multiple ventilation channels (8) are all opened on the side wall of the seed metering tray (5). The multiple ventilation channels (8) are respectively connected to the multiple adsorption channels (6). A feeding assembly is installed on the seed metering tray (5).

4. The air-suction type corn seed metering device for preventing hole clogging according to claim 3, characterized in that, The feeding assembly includes: A sealing ring (9) is provided, and the seed metering disc (5) is rotatably connected within the sealing ring (9). Ventilation groove (10) is formed on the side wall of the sealing ring (9), and the ventilation groove (10) cooperates with a plurality of ventilation channels (8); Seeding pipe (11), the seeding pipe (11) being connected to the mounting platform (1); A seed inlet funnel (12) is connected to the top of the seed discharge tube (11), and the opening of the seed inlet funnel (12) is located below the plurality of ventilation slots (10).

5. The air-suction type corn seed metering device for preventing hole clogging according to claim 4, characterized in that, The transmission mechanism includes: A toothed ring (13) is fitted onto the outer wall of the seed metering disc (5); Support platform two (14), which is fixedly connected to one side of the mounting platform (1); Gear (15), which is rotatably connected to the second support platform (14), and the gear (15) engages with the gear ring (13); Motor 1 (16) is fixedly connected to the support platform 2 (14), and the output end of Motor 1 (16) is fixedly connected to the gear (15).

6. A pneumatic suction-type corn seed metering device for preventing hole clogging according to claim 5, characterized in that, The anti-blocking mechanism includes: Support platform three (25), which is fixedly connected to the mounting platform (1) on the side away from the transmission mechanism; Hair dryer (26), the hair dryer (26) is fixedly connected to the support platform three (25), and the output end of the hair dryer (26) is opposite to the ventilation groove (10); Telescopic tube (27), one end of which is connected to the output end of the hair dryer (26); A sealing gasket (28) is fixedly connected to the other end of the telescopic tube (27), and the sealing gasket (28) cooperates with the vent groove (10); A reciprocating moving assembly is installed between the support platform (25) and the sealing gasket (28).

7. A pneumatic suction-type corn seed metering device for preventing hole clogging according to claim 6, characterized in that, The reciprocating motion component includes: Mounting slot (29) is formed on the support platform three (25); A connecting plate (30) is slidably connected within the mounting groove (29); A threaded rod (31) is rotatably connected in the mounting groove (29), and the threaded rod (31) is threadedly connected to the connecting plate (30); Motor 3 (32) is fixedly connected to the support platform 3 (25), and the output end of the motor 3 (32) is fixedly connected to the threaded rod (31).

8. A pneumatic suction-type corn seed metering device for preventing hole clogging according to claim 7, characterized in that, The mobile mechanism includes: Mounting box (33), two mounting boxes (33) are provided, and both mounting boxes (33) are fixedly connected to the bottom end of the mounting platform (1); The wheel (34) is provided in four groups, and the four wheels (34) are divided into two groups. The two groups of wheels (34) are rotatably connected to the two mounting boxes (33). Two motors (35) are provided, and the two motors (35) are fixedly connected to the bottom end of the mounting platform (1). The output ends of the two motors (35) are respectively fixedly connected to the two wheels (34) arranged symmetrically on the axis. The guard plate (36) is fixedly connected to the bottom end of the mounting platform (1), and the two motors (35) arranged symmetrically are located inside the guard plate (36).

Images