A pneumatic seeder with adjustable seed scraping distance

Abstract

This utility model discloses a pneumatic seeder with adjustable seed scraping distance, specifically relating to the agricultural planting field. It includes a feed hopper, an inlet pipe, a discharge pipe, a seed suction plate, a clamping component, and a drive shaft. The seed suction plate is installed inside the feed hopper. The clamping component and the drive shaft are interconnected. One side of the feed hopper corresponding to the seed suction plate is connected to the input end of a negative pressure device, i.e., this area is the negative pressure zone. Seeds are placed on the other side of the feed hopper corresponding to the seed suction plate, i.e., this area is the feed zone. The inlet pipe is installed at the feed zone position of the feed hopper. In use, by adjusting the magnetic force of the electromagnetic block in conjunction with mutually repelling magnetic blocks, the distance of the seed scraper can be effectively adjusted by moving the block. The magnetic force output control allows for more precise adjustment of the seed scraper distance. Simultaneously, the magnetic force adjustment allows for small-range adjustment of the seed scraper when squeezing the seeds, avoiding damage to the seeds caused by rigid adjustment.

Description

Technical Field

[0001] This utility model relates to the field of agricultural planting, specifically a pneumatic seeder with adjustable seed scraping distance. Background Technology

[0002] A pneumatic seeder is an agricultural machine that uses airflow (positive or negative pressure) to achieve precise seed delivery and sowing. It is mainly used for precision sowing of crops, vegetables, flowers, etc.

[0003] During sowing operations, it is usually necessary to scrape the seeds adsorbed on the feed tray. This can effectively prevent multiple seeds from being adsorbed on the same pore, and thus prevent multiple seeds from being planted in the same position, which is not conducive to rational agricultural planting.

[0004] Since the seeder can sow different types of seeds, the distance of the seed scraper needs to be adjusted. Currently, this is usually done manually by turning the screw, which is cumbersome and has low precision. Furthermore, the current seed scraper is usually rigid, which can damage the seeds. Therefore, this invention provides a pneumatic seeder with adjustable seed scraping distance to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic seeder with adjustable seed scraping distance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pneumatic seeder with adjustable seed scraping distance includes a feed hopper, an inlet pipe, a discharge pipe, a seed suction disc, a clamping component, and a drive shaft. The seed suction disc is installed inside the feed hopper. The clamping component and the drive shaft are interconnected. One side of the feed hopper corresponding to the seed suction disc is connected to the input end of a negative pressure device, i.e., this area is the negative pressure zone. Seeds are placed on the other side of the feed hopper corresponding to the seed suction disc, i.e., this area is the feed zone. The inlet pipe is installed at the upper feed zone of the feed hopper and is interconnected with the inside of the feed hopper. The discharge pipe is installed at the bottom of the feed hopper, and the top of the discharge pipe extends into the feed hopper corresponding to the seed suction disc. At the seed adsorption point on the seed tray, an extrusion wheel is installed at the bottom of the negative pressure area inside the material box. The extrusion wheel is located between the seed and the discharge pipe. The material box includes a material shell and an air shell. The interior of the air shell is connected to the input end of the negative pressure device. The seed suction tray includes a material tray and air holes. The material tray is disc-shaped and is snapped onto the inner side of the air shell. The air holes are annularly opened on the side wall of the material tray. A seed scraping adjustment component that is adjusted by magnetic force is installed on the material box. The seed scraping adjustment component includes an adjustment rod, an electromagnetic adjustment component, an elastic pushing component, a moving component, and a seed scraping plate.

[0008] As a further embodiment of this utility model, the adjusting rod is fixedly installed inside the material box, the electromagnetic adjusting component is installed on the adjusting rod, the moving component is installed on the adjusting rod, the elastic pushing component is installed inside the adjusting rod, the elastic pushing component and the moving component are connected, and the seed scraper is installed on the moving component.

[0009] As a further embodiment of this utility model, the electromagnetic adjustment component includes an electromagnetic device, a magnetic adjustment groove, and an electromagnetic block. The electromagnetic device is installed on the outside of the material box, the magnetic adjustment groove is opened inside the adjustment rod and penetrates the top wall of the adjustment rod, and the electromagnetic block is installed on the inside of the adjustment rod near the electromagnetic device. The control end of the electromagnetic block is connected to the output end of the electromagnetic device through a cable.

[0010] As a further embodiment of this utility model, the movable component includes a movable groove, a movable block, and a magnetic block. The movable groove is located at the top of the adjusting rod and passes through the corresponding wall of the adjusting rod, connecting with the magnetic adjustment groove. The movable block is installed in the movable groove. The magnetic block is located at the end of the magnetic adjustment groove away from the electromagnetic block. The magnetic block and the movable block are connected. The bottom of the seed scraper is installed on the top of the movable block. The magnetic blocks and the electromagnetic blocks repel each other on their corresponding sides.

[0011] As a further embodiment of this utility model, the elastic pushing component includes an elastic adjustment groove and an elastic component. The elastic adjustment groove is formed on the side wall of the magnetic adjustment groove away from the electromagnetic block. One end of the elastic component is installed inside the elastic adjustment groove at the end away from the magnetic adjustment groove, and the other end of the elastic component is installed on the magnetic block.

[0012] As a further embodiment of this utility model, the clamping member includes a clamping disk and a locking member, one side of the clamping disk is connected to the drive shaft, and the locking member is installed on the clamping disk.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When this utility model is used, by adjusting the magnetic force of the electromagnetic block in conjunction with the mutually repelling magnetic blocks, the distance of the seed scraper can be effectively adjusted by moving the block. The distance of the seed scraper can be adjusted more precisely by controlling the output of the magnetic force. At the same time, the adjustment of the magnetic force allows the seed scraper to be adjusted within a small range when squeezing the seeds, avoiding damage to the seeds caused by rigid adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a pneumatic seeder with adjustable seed scraping distance.

[0016] Figure 2This is a schematic diagram of the internal structure of the feed box in a pneumatic seeder with adjustable seed scraping distance.

[0017] Figure 3 This is a partial structural diagram of the seed scraping adjustment component in a pneumatic seeder with adjustable seed scraping distance.

[0018] Figure 4 This is a schematic diagram of a partial structure of the air shell in a pneumatic seeder with adjustable seed scraping distance.

[0019] Figure 5 This is a partial structural diagram of the auxiliary clamping plate in a pneumatic seeder with adjustable seed scraping distance.

[0020] In the diagram: 1. Material shell; 2. Air shell; 3. Feed pipe; 4. Discharge pipe; 5. Drive shaft; 6. Electromagnetic device; 7. Material tray; 8. Air hole; 9. Main clamping plate; 10. Adjusting rod; 11. Scraper plate; 12. Magnetic adjustment groove; 13. Moving groove; 14. Elastic adjustment groove; 15. Magnetic block; 16. Moving block; 17. Clamping plate; 18. Elastic component; 19. Electromagnetic block; 20. Auxiliary clamping plate; 21. Moving groove; 22. Clamping rod; 23. Clamping block; 24. Adjusting plate; 25. Extrusion wheel; 26. Auxiliary adjustment groove; 27. Connecting rod; 28. Connecting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5In this embodiment of the invention, a pneumatic seeder with adjustable seed scraping distance includes a feed hopper, an inlet pipe 3, a discharge pipe 4, a seed suction disc, a clamping component, and a drive shaft 5. The seed suction disc is installed inside the feed hopper. The clamping component and the drive shaft 5 are connected to each other. The end of the drive shaft 5 away from the clamping component is connected to the output end of a drive device. The drive device includes a motor. One side of the feed hopper corresponding to the seed suction disc is connected to the input end of a negative pressure device, i.e., this area is the negative pressure zone. Seeds are placed on the other side of the feed hopper corresponding to the seed suction disc, i.e., this area is the feed zone. The negative pressure device generates negative pressure, causing the seeds to be adsorbed onto the seed suction disc. The inlet pipe 3 is installed on the feed hopper to... The side where the seeds should be placed has the feed pipe 3 connected to the inside of the hopper. The discharge pipe 4 is installed at the bottom of the hopper, and the top of the discharge pipe 4 extends to the seed adsorption point on the seed suction plate inside the hopper. When the seed suction plate rotates through the drive shaft 5, the seeds on the seed suction plate will come into contact with the discharge pipe 4, thereby scraping the seeds on the seed suction plate into the discharge pipe 4 and planting them to the designated position through the discharge pipe 4. An extrusion roller 25 is installed at the bottom of the negative pressure area inside the hopper. The extrusion roller 25 is located between the seeds and the discharge pipe 4. The extrusion roller 25 can rotate with the seed suction plate and squeeze the inferior seeds on the seed suction plate back into the feed area.

[0023] The feed box includes a feed shell 1 and an air shell 2. The feed shell 1 and the air shell 2 are assembled by bolts. The side of the feed shell 1 corresponding to the seed suction plate is the seed placement side. The side of the air shell 2 corresponding to the seed suction plate is connected to the input end of the negative pressure device.

[0024] Specifically, the feed pipe 3 penetrates the side wall of the shell 1 and is connected to the inside of the shell 1. The drive shaft 5, away from the seed suction plate, penetrates the corresponding position wall of the shell 1 and extends to the outside of the shell 1. The top of the discharge pipe 4 penetrates the corresponding position wall of the bottom of the shell 1 and extends to the inside of the shell 1.

[0025] The seed suction plate includes a material tray 7 and air holes 8. The material tray 7 is disc-shaped and is snapped onto the inner side of the air shell 2. The air holes 8 are arranged in a ring on the side wall of the material tray 7. The negative pressure generated inside the air shell 2 causes the seeds to be adsorbed into the air holes 8 on the material tray 7. As the material tray 7 rotates, the air holes 8 on the material tray 7 will rotate to the top of the discharge pipe 4. By contacting the discharge pipe 4, the seeds adsorbed on the air holes 8 will fall into the interior of the discharge pipe 4, so that they can be planted to the designated location through the discharge pipe 4.

[0026] The feed hopper is equipped with a seed scraping adjustment component. By adjusting the distance between the seed scraping adjustment component and the feed tray 7, excess seeds adsorbed on the air holes 8 can be squeezed out of the air holes 8, so that there is always only one seed on the air hole 8 and there are no excess seeds.

[0027] The seed scraping adjustment assembly includes an adjustment rod 10, an electromagnetic adjustment component, a spring-loaded pusher component, a movable component, and a seed scraping plate 11. The adjustment rod 10 is fixedly installed inside the material box. The electromagnetic adjustment component is installed on the adjustment rod 10 and generates magnetic force through electromagnetism. The movable component is installed on the adjustment rod 10 and can move on the adjustment rod 10. The spring-loaded pusher component is installed inside the adjustment rod 10 and is connected to the movable component. The electromagnetic adjustment component can push the movable component to move on the adjustment rod 10 through magnetic force. The spring-loaded pusher component can drive the movable component to perform a counter-push movement adjustment on the adjustment rod 10 according to the magnitude of the magnetic force of the electromagnetic adjustment component. Thus, according to the magnitude of the magnetic force output of the electromagnetic adjustment component, the spring-loaded pusher component can drive the movable component to move to the designated position on the adjustment rod 10. The seed scraping plate 11 is installed on the movable component. The spacing between the seed scraping plate 11 and the material tray 7 can be adjusted by the movement adjustment of the movable component, thereby adapting to the outer diameter of the seeds.

[0028] The electromagnetic adjustment component includes an electromagnetic device 6, a magnetic adjustment groove 12, and an electromagnetic block 19. The electromagnetic device 6 is installed on the outside of the material box. The magnetic adjustment groove 12 is opened inside the adjustment rod 10 and penetrates the top wall of the adjustment rod 10. The electromagnetic block 19 is installed on the inside of the adjustment rod 10 near the electromagnetic device 6. The control end of the electromagnetic block 19 is connected to the output end of the electromagnetic device 6 through a cable. The electromagnetic device 6 can control the magnitude of the magnetic force output of the electromagnetic block 19.

[0029] The movable component includes a movable groove 13, a movable block 16, and a magnetic block 15. The movable groove 13 is located at the top of the adjusting rod 10 and passes through the corresponding wall of the adjusting rod 10, connecting with the magnetic adjustment groove 12. The movable block 16 is installed in the movable groove 13 and can move horizontally within the movable groove 13. The magnetic block 15 is located inside the magnetic adjustment groove 12 at the end away from the electromagnetic block 19. The magnetic block 15 and the movable block 16 are connected. The bottom of the seed scraper 11 is installed on the top of the movable block 16. The magnetic blocks 15 and the electromagnetic block 19 repel each other on their corresponding sides. Through the repulsive magnetic force, the electromagnetic block 19 can push the magnetic block 15 to move within the magnetic adjustment groove 12, thereby driving the seed scraper 11 to move through the movable block 16.

[0030] The movable component also includes a clamping plate 17, which is installed on the movable block 16 near one end of the magnetic adjustment groove 12. The inner diameter of the clamping plate 17 is compatible with the outer diameter of the adjusting rod 10, and the length of the clamping plate 17 is greater than the length of the magnetic adjustment groove 12. The clamping plate 17 can shield the magnetic adjustment groove 12, effectively preventing external objects from interfering with the magnetic operation in the magnetic adjustment groove 12.

[0031] The elastic pushing component includes an elastic adjustment groove 14 and an elastic element 18. The elastic adjustment groove 14 is formed on the side wall of the magnetic adjustment groove 12 away from the electromagnetic block 19. One end of the elastic element 18 is installed inside the elastic adjustment groove 14 at the end away from the magnetic adjustment groove 12, and the other end of the elastic element 18 is installed on the magnetic block 15. The elastic element 18 can push the magnetic block 15 to move closer to the electromagnetic block 19 until the magnetic repulsion between the electromagnetic block 19 and the magnetic block 15 and the elastic force of the elastic element 18 reach a balance position, so that the magnetic block 15 stops moving. Specifically, when the magnetic force of the electromagnetic block 19 increases, the magnetic block 15 will move away from the electromagnetic block 19 until it reaches the balance position again. When the magnetic force of the electromagnetic block 19 decreases, the magnetic block 15 will move closer to the electromagnetic block 19 until it reaches the balance position again.

[0032] The clamping component includes a clamping plate and a locking element. One side of the clamping plate is connected to the drive shaft 5. The clamping plate can clamp and fix the material tray 7. The locking element is installed on the clamping plate. The clamping state of the clamping plate can be adjusted by the locking element, so that the material tray 7 can be clamped or released from the clamping.

[0033] The clamping plate includes a main clamping plate 9, an auxiliary clamping plate 20, a movable groove 21, and a locking rod 22. The main clamping plate 9 is located on one side of the material area inside the material box. The main clamping plate 9 and the drive shaft 5 are connected to each other. The auxiliary clamping plate 20 is located on one side of the negative pressure area inside the material box. The locking rod 22 is fixedly installed around the side wall of the main clamping plate 9 near the auxiliary clamping plate 20. The movable groove 21 is opened around the side wall of the auxiliary clamping plate 20. The position of the movable groove 21 corresponds to the position of the locking rod 22. The locking rod 22 slides through the corresponding position wall of the material box 7 and extends into the movable groove 21.

[0034] The locking mechanism includes a clamping block 23, an adjusting disc 24, an auxiliary adjusting groove 26, a connecting rod 27, and a connecting groove 28. The clamping block 23 is located inside the movable groove 21 and can move within the movable groove 21 and engage with the locking rod 22. The end of the clamping block 23 near the locking rod 22 has an arc surface that adapts to the outer diameter of the locking rod 22. The adjusting disc 24 is threaded onto the middle of the side wall of the auxiliary clamping plate 20. The auxiliary adjusting groove 26 is formed on the auxiliary clamping plate 20 on the side of the clamping block 23 corresponding to the adjusting disc 24, and the mounting area of ​​the adjusting disc 24 is corresponding within the auxiliary adjusting groove 26. The threaded area of ​​the adjusting plate 24 does not coincide with the installation position of the adjusting plate 24. The connecting rod 27 is fixedly installed on the side of the clamping block 23 near the adjusting plate 24. The connecting rod 27 is located in the auxiliary adjusting groove 26. The connecting groove 28 is opened on the side wall of the adjusting plate 24. The connecting groove 28 does not coincide with the threaded area on the adjusting plate 24. The end of the connecting rod 27 away from the clamping block 23 is snapped into the connecting groove 28. When the adjusting plate 24 rotates with threads, the connecting rod 27 will drive the clamping block 23 to move closer to the clamping block 23 and clamp the clamping block 23, thereby completing the clamping and fixing of the material tray 7.

[0035] The working principle of this utility model is as follows:

[0036] When using this invention, the device is installed on a mobile agricultural implement vehicle. Seeds are transferred to the feed box through the feed pipe 3. The drive shaft 5 is driven by the drive device to operate, thereby causing the feed tray 7 to rotate inside the feed shell 1. Due to the negative pressure inside the air shell 2, the seeds inside the feed shell 1 are adsorbed onto the air holes 8. As the feed tray 7 rotates and moves, the seeds on the air holes 8 come into contact with the top of the discharge pipe 4, thereby scraping the seeds into the air holes 8 and transferring them to the planting area.

[0037] When the position of the seed scraper 11 needs to be adjusted, the electromagnetic device 6 controls the input of the magnetic force, so that the magnetic block 15 will drive the moving block 16 to move and adjust on the adjusting rod 10 due to the change of repulsive force, thereby changing the distance between the seed scraper 11 and the material tray 7, so that the position of the seed scraper 11 can be effectively adjusted according to the needs.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pneumatic seeder with adjustable seed scraping distance, comprising a feed box, a feed pipe (3), a discharge pipe (4), a seed suction plate, a clamping component, and a drive shaft (5), wherein the seed suction plate is installed inside the feed box, the clamping component and the drive shaft (5) are connected to each other, one side of the feed box corresponding to the seed suction plate is connected to the input end of a negative pressure device, i.e., this area is a negative pressure area, and seeds are placed on the other side of the feed box corresponding to the seed suction plate, i.e., this area is a feed area, the feed pipe (3) is installed at the feed area of ​​the feed box, and the feed pipe (3) is connected to the inside of the feed box, the discharge pipe (4) is installed at the bottom of the feed box, the top of the discharge pipe (4) extends to the seed suction point on the seed suction plate inside the feed box, and a squeezing wheel (25) is installed at the bottom of the negative pressure area inside the feed box, the squeezing wheel (25) is located between the seed and the discharge pipe (4), characterized in that: The hopper includes a material shell (1) and an air shell (2). The interior of the air shell (2) is connected to the input end of the negative pressure device. The seed suction plate includes a material tray (7) and an air hole (8). The material tray (7) is disc-shaped and is snapped onto the inner side of the air shell (2). The air hole (8) is annularly opened on the side wall of the material tray (7). The hopper is equipped with a seed scraping adjustment component that is adjusted by magnetic force. The seed scraping adjustment component includes an adjustment rod (10), an electromagnetic adjustment component, an elastic pushing component, a moving component, and a seed scraping plate (11).

2. The pneumatic seeder with adjustable seed scraping distance according to claim 1, characterized in that: The adjusting rod (10) is fixedly installed inside the material box. The electromagnetic adjusting component is installed on the adjusting rod (10). The moving component is installed on the adjusting rod (10). The elastic pushing component is installed inside the adjusting rod (10). The elastic pushing component and the moving component are connected. The seed scraper (11) is installed on the moving component.

3. A pneumatic seeder with adjustable seed scraping distance according to claim 1 or 2, characterized in that: The electromagnetic adjustment component includes an electromagnetic device (6), a magnetic adjustment groove (12), and an electromagnetic block (19). The electromagnetic device (6) is installed on the outside of the material box. The magnetic adjustment groove (12) is opened inside the adjustment rod (10) and penetrates the top wall of the adjustment rod (10). The electromagnetic block (19) is installed on the inside of the adjustment rod (10) near the electromagnetic device (6). The control end of the electromagnetic block (19) is connected to the output end of the electromagnetic device (6) through a cable.

4. A pneumatic seeder with adjustable seed scraping distance according to claim 3, characterized in that: The movable component includes a movable groove (13), a movable block (16), and a magnetic block (15). The movable groove (13) is located at the top of the adjusting rod (10). The movable groove (13) passes through the corresponding wall of the adjusting rod (10) and is connected to the magnetic adjustment groove (12). The movable block (16) is installed in the movable groove (13). The magnetic block (15) is located at the end of the magnetic adjustment groove (12) away from the electromagnetic block (19). The magnetic block (15) and the movable block (16) are connected. The bottom of the seed scraper (11) is installed on the top of the movable block (16). The magnetic blocks (15) and the electromagnetic blocks (19) are magnetically repelled on the corresponding sides.

5. A pneumatic seeder with adjustable seed scraping distance according to claim 4, characterized in that: The elastic pushing component includes an elastic adjustment groove (14) and an elastic component (18). The elastic adjustment groove (14) is opened on the side wall of the magnetic adjustment groove (12) away from the electromagnetic block (19). One end of the elastic component (18) is installed inside the elastic adjustment groove (14) at the end away from the magnetic adjustment groove (12), and the other end of the elastic component (18) is installed on the magnetic block (15).

6. A pneumatic seeder with adjustable seed scraping distance according to claim 1, characterized in that: The clamping component includes a clamping disk and a locking element. One side of the clamping disk is connected to the drive shaft (5), and the locking element is installed on the clamping disk.

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