Air suction type small grain seeding tray for grain seeding machine

Abstract

The utility model discloses an air suction type small grain seeding tray for a grain seeder, which comprises a seeding tray body and an air suction cup, the air suction cup is mounted on the side wall of the seeding tray body, a negative pressure pipe is mounted on the outer wall of the air suction cup, and a storage bin is mounted on one side, far away from the air suction cup, of the side wall of the seeding tray body. The bottom end of the storage bin is provided with a material blocking cover, the bottom end of the storage bin on one side of the material blocking cover is provided with a discharging cover, the bottom end of the discharging cover extends into the seeding tray body, the outer wall of the seeding tray body is provided with a servo motor, and the output end of the servo motor is provided with a rotating shaft. The multi-structure stable transmission negative pressure grain adsorption of the air suction type small grain seeding disc is realized, the grains can be conveniently and stably removed and seeded, the accumulated grains can be conveniently dispersed, the miss-seeding of the grains is prevented, and the grain seeding efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-suction type small-grain seeding discs, in particular to an air-suction type small-grain seeding disc for a grain seeder. Background Art

[0002] The principle of the pneumatic seeder refers to a sowing method in which seeds are sucked into the seeder through air flow and then discharged through a seed meter. The principle is to use the force of air flow to suck the seeds into the seeder, and then discharge the seeds at a certain distance through the seed meter at the bottom. The pneumatic seeder can be suitable for various crops with seeds, such as corn, soybeans, wheat, etc. Compared with traditional manual sowing methods, the pneumatic seeder has the advantages of automation, efficiency and precision, which can improve the yield and quality of crops and reduce the waste of labor and cost. At the same time, the pneumatic seeder can also reduce the waste of seeds, as well as the density and uneven distribution of seeds. Therefore, in modern agriculture, the pneumatic seeder has become an increasingly popular sowing method and is widely used in agricultural production.

[0003] For example, a seeding tray for an air-suction seeder disclosed in the authorization announcement number CN219660367U, the seeding tray for the air-suction seeder comprises a seeding box and a box cover, one side of the box cover is provided with an air suction pipe, one side of the seeding box is provided with a feeding pipe and a connecting shaft, a seeding tray is movably installed in the seeding box, and a seed outlet tube is provided at the bottom of the seeding box, characterized in that four fixing blocks are fixedly installed on the box cover, the four fixing blocks are distributed in an annular shape, a fixing column is fixedly installed on one side of the fixing block, a clamping hole is opened on one side of the fixing column, an annular block is fixedly provided on the seeding box, and a fixing mechanism is provided on the annular block;

[0004] Although it has the advantages of simple operation, convenient installation and disassembly of the seed box and the box cover, and quick replacement of the seed suction tray, it does not solve the problem that the existing air-suction small-grain seeding tray of this type is generally not conducive to the stable transmission of multi-structure negative pressure adsorption of grains during use, it is not convenient to stably remove the grains for sowing, the grains are prone to large-scale accumulation, and inaccurate negative pressure adsorption can easily lead to missed seeds, which greatly affects the efficiency and accuracy of grain sowing. Utility Model Content

[0005] The purpose of the utility model is to provide an air-suction small-grain seeding plate for a grain seeder, so as to solve the problems proposed in the above background technology that the air-suction small-grain seeding plate is not convenient for multi-structure stable transmission negative pressure adsorption of grains, is not convenient for stable removal of grains for sowing, grains are prone to large-scale accumulation, and inaccurate negative pressure adsorption can easily lead to missed seeds, affecting the efficiency and accuracy of grain sowing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air-suction small-grain seeding plate for a grain seeder, comprising a seeding plate body and an air suction cup, an air suction cup is installed on the side wall of the seeding plate body, a negative pressure pipe is installed on the outer wall of the air suction cup, a storage bin is installed on the side of the side wall of the seeding plate body away from the air suction cup, a material blocking cover is installed at the bottom end of the storage bin, a lower material cover is installed at the bottom end of the storage bin on one side of the material blocking cover, and the bottom end of the lower material cover extends to the interior of the seeding plate body, a servo motor is installed on the outer wall of the seeding plate body, a rotating shaft is installed at the output end of the servo motor, and the rotating shaft extends to the interior of the air suction cup, a discharge pipe is installed inside the seeding plate body on one side of the rotating shaft, and the discharge pipe extends to the outside of the seeding plate body.

[0007] Preferably, a circular disc is installed at the center position inside the air suction cup, and the rotating shaft is connected to the circular disc, and a plurality of groups of air suction holes with equal spacing are installed on the outer wall of the circular disc.

[0008] Preferably, a transmission shaft is installed inside the air suction cup on one side of the rotating shaft, a positioning sleeve is sleeved on the surface of the transmission shaft, and the positioning sleeve is connected to the air suction cup.

[0009] Preferably, a linkage shaft is installed inside the air suction cup on one side of the transmission shaft, a movable sleeve is sleeved on the surface of the linkage shaft, and the movable sleeve is connected to the air suction cup.

[0010] Preferably, a material ejecting tooth is installed at the top end of the linkage shaft, and a third conical tooth is installed at the bottom end of the linkage shaft.

[0011] Preferably, a second conical tooth is installed at one end of the transmission shaft close to the third conical tooth, and the second conical tooth and the third conical tooth are meshed with each other.

[0012] Preferably, a fourth conical tooth is installed at one end of the transmission shaft close to the rotating shaft, a first conical tooth is installed at one end of the rotating shaft close to the fourth conical tooth, and the first conical tooth and the fourth conical tooth are meshed with each other.

[0013] Preferably, a dividing arm is mounted on the outer wall of the rotating shaft on one side of the seeding disc body, three groups of supporting shafts with equal spacing are installed inside the seeding disc body on one side of the dividing arm, and the surfaces of the supporting shafts are all mounted with material removing rollers.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the air-suction small-grain sowing disc not only realizes the multi-structure stable transmission negative pressure adsorption of grains by the air-suction small-grain sowing disc, but also facilitates the stable removal and sowing of grains, facilitates the dispersion of accumulated grains, prevents grain leakage, and improves the efficiency and accuracy of grain sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the servo motor of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the disc of the utility model;

[0019] Figure 5 It is a three-dimensional front view structural schematic diagram of the material removal roller of the utility model;

[0020] Figure 6 This is a schematic diagram of the front view structure of the rotating shaft of the utility model;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the transmission shaft of the utility model;

[0022] Figure 8 This is a schematic diagram of the front view structure of the linkage shaft of the utility model;

[0023] Fig. 9 It is a schematic diagram of the three-dimensional explosion structure of the disc of the utility model.

[0024] In the figure: 1. seeding disc body; 2. air suction disc; 3. disc; 4. air suction hole; 5. negative pressure pipe; 6. storage bin; 7. material blocking cover; 8. material discharge cover; 9. servo motor; 10. rotating shaft; 11. material distribution arm; 12. first conical gear; 13. transmission shaft; 14. positioning sleeve; 15. linkage shaft; 16. second conical gear; 17. third conical gear; 18. movable sleeve; 19. material lifting gear; 20. material picking roller; 21. supporting shaft; 22. fourth conical gear; 23. discharge pipe. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] See also Figure 1-9, the utility model provides an embodiment: an air-suction type small-grain seeding tray for a grain seeder, comprising a seeding tray body 1 and an air suction disc 2, the air suction disc 2 is installed on the side wall of the seeding tray body 1, a negative pressure pipe 5 is installed on the outer wall of the air suction disc 2, a storage bin 6 is installed on the side of the side wall of the seeding tray body 1 away from the air suction disc 2, a blocking cover 7 is installed at the bottom end of the storage bin 6, a material discharge cover 8 is installed at the bottom end of the storage bin 6 on one side of the blocking cover 7, and the bottom end of the material discharge cover 8 extends to the inside of the seeding tray body 1, a servo motor 9 is installed on the outer wall of the seeding tray body 1, a rotating shaft 10 is installed at the output end of the servo motor 9, and the rotating shaft 10 extends to the inside of the air suction disc 2, a discharge pipe 23 is installed inside the seeding tray body 1 on one side of the rotating shaft 10, and the discharge pipe 23 extends to the outside of the seeding tray body 1;

[0027] A disc 3 is installed at the center of the air suction cup 2, and a rotating shaft 10 is connected to the disc 3. A plurality of groups of air suction holes 4 with equal spacing are installed on the outer wall of the disc 3.

[0028] A transmission shaft 13 is installed inside the air suction cup 2 on one side of the rotating shaft 10, and a positioning sleeve 14 is mounted on the surface of the transmission shaft 13, and the positioning sleeve 14 is connected to the air suction cup 2. A linkage shaft 15 is installed inside the air suction cup 2 on one side of the transmission shaft 13, and a movable sleeve 18 is mounted on the surface of the linkage shaft 15, and the movable sleeve 18 is connected to the air suction cup 2.

[0029] A material-lifting tooth 19 is installed at the top end of the linkage shaft 15 , and a third conical tooth 17 is installed at the bottom end of the linkage shaft 15 .

[0030] The second conical teeth 16 are installed at one end of the transmission shaft 13 close to the third conical teeth 17 , and the second conical teeth 16 and the third conical teeth 17 are meshed with each other.

[0031] A fourth conical tooth 22 is installed at one end of the transmission shaft 13 close to the rotating shaft 10 , and a first conical tooth 12 is installed at one end of the rotating shaft 10 close to the fourth conical tooth 22 , and the first conical tooth 12 and the fourth conical tooth 22 are meshed with each other.

[0032] A material distribution arm 11 is mounted on the outer wall of the rotating shaft 10 on one side of the seeding disc body 1. Three groups of support shafts 21 with equal spacing are installed inside the seeding disc body 1 on one side of the material distribution arm 11. The surfaces of the support shafts 21 are all mounted with material removal rollers 20.

[0033] By pouring the grains into the storage bin 6, under the protection of the material blocking cover 7, the grains enter the lower material cover 8, and are transported to the inside of the sowing disc body 1 by the lower material cover 8. The external negative pressure machine is connected to the air suction cup 2 through the negative pressure pipe 5, and negative pressure is generated inside the air suction cup 2. At this time, the air suction hole 4 generates negative pressure suction, and the servo motor 9 drives the rotating shaft 10 to rotate, and the rotating shaft 10 drives the disc 3 to rotate, and the disc 3 drives the air suction hole 4 to rotate, and the grains are stuck in the inside of the air suction hole 4. With the cooperation of the material removal roller 20 and the support shaft 21, the excess grains absorbed on the surface of the air suction hole 4 are stuck off, and the grains rotate with the disc 3 in a circle. The rotating shaft 10 drives the fourth conical teeth 22 to rotate through the first conical teeth 12, and the fourth conical teeth 22 drive the second conical teeth 16 to rotate through the transmission shaft 13, and the positioning sleeve 14 movably supports the transmission shaft 13, the second conical tooth 16 drives the linkage shaft 15 to rotate through the third conical tooth 17, the movable sleeve 18 movably supports the linkage shaft 15, the linkage shaft 15 drives the ejecting tooth 19 to rotate, the ejecting tooth 19 removes the seeds on the surface of the air suction hole 4, and the seeds are discharged through the discharge pipe 23, the rotating shaft 10 drives the dividing arm 11 to rotate, the dividing arm 11 disperses the grains inside the sowing disc body 1, the air suction disc 2 realizes dynamic sealing with the disc 3 through the sealing ring, so that all the air suction holes 4 generate negative pressure suction, and realizes the multi-structure stable transmission negative pressure adsorption of grains by the air suction small-grain sowing disc, which is convenient for the stable removal and sowing of grains, the dispersion of accumulated grains, and the prevention of grain leakage, thereby improving the efficiency and accuracy of grain sowing.

[0034] When the embodiment of the present application is used, first, the grains are poured into the interior of the storage bin 6. Under the protection of the blocking cover 7, the grains enter the interior of the lower material cover 8, and are transported to the interior of the sowing disc body 1 by the lower material cover 8. The external negative pressure machine is connected to the air suction cup 2 through the negative pressure pipe 5. Negative pressure is generated inside the air suction cup 2. At this time, the air suction hole 4 generates negative pressure suction. The servo motor 9 drives the rotating shaft 10 to rotate, and the rotating shaft 10 drives the disc 3 to rotate. The disc 3 drives the air suction hole 4 to rotate, and the grains are stuck in the interior of the air suction hole 4. The grains absorbed on the surface of the air suction hole 4 are stuck, and the grains rotate with the disc 3. The rotating shaft 10 passes through the first cone. The tooth 12 drives the fourth conical tooth 22 to rotate, the fourth conical tooth 22 drives the second conical tooth 16 to rotate through the transmission shaft 13, the second conical tooth 16 drives the linkage shaft 15 to rotate through the third conical tooth 17, the linkage shaft 15 drives the top-feeding tooth 19 to rotate, the top-feeding tooth 19 removes the seeds on the surface of the air suction hole 4, and the seeds are discharged through the discharge pipe 23, the rotating shaft 10 drives the distribution arm 11 to rotate, the distribution arm 11 plays a role in dispersing the grains inside the sowing disc body 1, the air suction disc 2 realizes dynamic sealing with the disc 3 through the sealing ring, so that all the air suction holes 4 have negative pressure suction, so as to complete the use of the air-suction small-grain sowing disc.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An air suction type small grain sowing disc for a grain seeder, characterized in that: The invention comprises a seeding tray body (1) and an air suction tray (2), wherein the air suction tray (2) is mounted on the side wall of the seeding tray body (1), a negative pressure pipe (5) is mounted on the outer wall of the air suction tray (2), a storage bin (6) is mounted on the side of the side wall of the seeding tray body (1) away from the air suction tray (2), a material blocking cover (7) is mounted at the bottom end of the storage bin (6), a material discharge cover (8) is mounted at the bottom end of the storage bin (6) on the side of the material blocking cover (7), and the bottom end of the material discharge cover (8) extends to the inside of the seeding tray body (1), a servo motor (9) is mounted on the outer wall of the seeding tray body (1), a rotating shaft (10) is mounted at the output end of the servo motor (9), and the rotating shaft (10) extends to the inside of the air suction tray (2), and a discharge pipe (23) is mounted inside the seeding tray body (1) on the side of the rotating shaft (10), and the discharge pipe (23) extends to the outside of the seeding tray body (1).

2. The air suction type small grain sowing disc for a grain seeder according to claim 1, characterized in that: A disc (3) is installed at the center position inside the air suction disc (2), and the rotating shaft (10) is connected to the disc (3). A plurality of groups of air suction holes (4) with equal spacing are installed on the outer wall of the disc (3).

3. The air suction type small grain sowing disc for a grain seeder according to claim 1, characterized in that: A transmission shaft (13) is installed inside the air suction cup (2) on one side of the rotating shaft (10), a positioning sleeve (14) is sleeved on the surface of the transmission shaft (13), and the positioning sleeve (14) is connected to the air suction cup (2).

4. The air suction type small grain sowing disc for a grain seeder according to claim 3, characterized in that: A linkage shaft (15) is installed inside the air suction cup (2) on one side of the transmission shaft (13); a movable sleeve (18) is sleeved on the surface of the linkage shaft (15), and the movable sleeve (18) is connected to the air suction cup (2).

5. The air suction type small grain sowing disc for a grain seeder according to claim 4, characterized in that: A material ejecting tooth (19) is mounted on the top end of the linkage shaft (15), and a third conical tooth (17) is mounted on the bottom end of the linkage shaft (15).

6. The air suction type small grain sowing disc for a grain seeder according to claim 3, characterized in that: A second conical tooth (16) is installed at one end of the transmission shaft (13) close to the third conical tooth (17), and the second conical tooth (16) and the third conical tooth (17) are meshed with each other.

7. The air suction type small grain sowing disc for a grain seeder according to claim 3, characterized in that: A fourth conical tooth (22) is installed at one end of the transmission shaft (13) close to the rotating shaft (10), and a first conical tooth (12) is installed at one end of the rotating shaft (10) close to the fourth conical tooth (22), and the first conical tooth (12) and the fourth conical tooth (22) are meshed with each other.

8. The air suction type small grain sowing disc for a grain seeder according to claim 1, characterized in that: A material distribution arm (11) is mounted on the outer wall of the rotating shaft (10) on one side of the seeding disc body (1), and three groups of support shafts (21) with equal spacing are installed inside the seeding disc body (1) on one side of the material distribution arm (11), and the surfaces of the support shafts (21) are all mounted with material removal rollers (20).

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