A new precision seeding machine single row seeding structure

Abstract

The utility model relates to agricultural seeding mechanical technical field especially relates to a new type precision seeding machine single row sowing structure. Its technical scheme includes: quick adjustable hanger structure, seed metering device, single body framework, compacting wheel assembly and depth limiting wheel assembly, single body framework one side is fixedly connected with seed metering device, and single body framework one side swing joint has four connecting rod assembly, four connecting rod assembly is away from single body framework one side and is provided with quick adjustable hanger structure, and single body framework below is provided with depth limiting wheel assembly, and single body framework one side swing joint has compacting wheel assembly, and single body framework is between compacting wheel assembly and is provided with seed pressing wheel assembly, and is connected with power mainframe through quick adjustable hanger structure, and realizes topography self -adaptation profiling with four connecting rod assembly cooperation, and completes multilevel ditching operation through no -tillage ditching knife, ditching disc assembly and ditching groove marking knife assembly in proper order, forms regular seed furrow, and after precision seed metering device realizes precision seed metering, seed is primarily fixed through seed pressing wheel, and then is compacted soil by compacting wheel assembly.

Description

Technical Field

[0001] This utility model relates to the field of agricultural seeding machinery technology, specifically a new type of precision seeder single-row seeding structure. Background Technology

[0002] Precision seeding technology is a key means for modern agriculture to increase crop yields and save seed costs. Its core requirements are to ensure consistent seed sowing depth, uniform plant spacing, and close contact with the soil to improve germination rate and uniform emergence. However, existing precision seeders have many problems in practical applications; Traditional seeders are rigidly connected to the main unit, which can cause inconsistent seeding depths when operating on uneven terrain, especially in hilly and mountainous areas. Existing furrowing components are mostly single-structured, making it difficult to effectively penetrate compacted soil in no-till fields. Furthermore, the unevenness of the furrow bottom after furrowing can lead to inconsistent seed implantation environments, affecting germination quality. The depth-limiting wheel is prone to soil adhesion, resulting in inaccurate depth detection. In addition, traditional structures have high furrowing resistance when operating on untilled no-till fields, which can easily lead to soil clogging and discontinuous furrowing, failing to meet the needs of conservation tillage. Therefore, we propose a new single-row seeding structure for precision seeders to solve the existing problems. Utility Model Content

[0003] The purpose of this invention is to provide a novel single-row seeding structure for a precision seeder to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel precision seeder single-row sowing structure, comprising a quick-adjustable hanging frame, a four-bar linkage assembly, a seed metering device, a single frame, a press wheel assembly, a seed pressing wheel assembly, and a depth limiting wheel assembly. The single frame is fixedly connected to a bell metering device on one side, and the four-bar linkage assembly is movably connected to another side of the single frame. A quick-adjustable hanging frame is provided on the side of the four-bar linkage assembly away from the single frame. A depth limiting wheel assembly is provided below the single frame, and the press wheel assembly is movably connected to another side of the single frame. The seed pressing wheel assembly is provided between the single frame and the press wheel assembly.

[0005] Preferably, the four-bar linkage assembly includes an upper four-bar linkage, a lower four-bar linkage, a screw, and a tension spring. The upper four-bar linkage and the lower four-bar linkage are movably connected to one side of the single frame. A screw is provided on the upper four-bar linkage, and a tension spring is fixedly connected to one side of the screw. The upper four-bar linkage is movably connected to the lower four-bar linkage through the tension spring.

[0006] Preferably, the quick-adjustable hanging frame includes a hanging plate, a hook, quick-release screws, and a mounting plate. The upper four-bar linkage and the lower four-bar linkage are movably connected to the mounting plate on the side away from the single frame. The mounting plate is provided with quick-release screws, and the mounting plate is movably connected to the hanging plate through the quick-release screws. A hook is fixedly connected to one side of the scraper.

[0007] Preferably, the press wheel assembly includes a connecting frame, a press wheel, a ground-adjusting pressure rod, and an angle adjusting rod. A connecting frame is provided on one side of the single frame, and a press wheel is movably connected inside the connecting frame. A ground-adjusting pressure rod and an angle adjusting rod are respectively provided on the connecting parts, and the ground-adjusting pressure rod and the angle adjusting rod cooperate with the press wheel.

[0008] Preferably, the depth limiting wheel assembly includes a depth limiting wheel, a crank arm, a scraper blade, a depth indicator, a limiting block, and an adjusting rod. The crank arm is movably connected to the lower part of the single frame. The depth limiting wheel is movably connected to one side of the crank arm, and a limiting rod is provided on one side of the single frame. A limiting block is provided on one side of the crank arm. The limiting block and the limiting rod cooperate with each other. A scraper blade is provided on one side of the crank arm, and the scraper blade cooperates with the depth limiting wheel.

[0009] Preferably, a no-till ditching blade is fixedly connected to one side of the single frame, a ditching disc assembly is provided on the side of the no-till ditching blade on the single frame, and a ditching groove cutting blade assembly is provided on the side of the ditching disc assembly on the single frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. The machine connects to the main unit via hooks. Quick-release screws allow for rapid adjustment of the relative position of the mounting plate and the mounting plate, adapting to different main unit mounting heights and angles. This ensures the initial stability of the entire machine. As the main unit moves forward, the upper and lower four-bar linkages swing flexibly through a hinge structure. Combined with the elastic tension of the tension springs, the individual frame can adaptively adjust to the undulations of the ground. The screw can adjust the preload of the tension springs. On hard ground, the tension is increased to ensure the soil penetration depth, while on soft ground, the tension is reduced to avoid excessive penetration, ensuring that subsequent furrowing and sowing depths are not affected by terrain fluctuations.

[0011] 2. After the seeds are initially fixed by the pressing wheel, the pressing wheel assembly performs the final treatment. The pressing wheel rolls over the soil above the seed furrow, compacting the loose soil around the seeds and making the seeds adhere closely to the soil. At the same time, it reduces soil voids and prevents water from evaporating too quickly. The pressure of the pressing wheel on the ground can be adjusted by the ground pressure adjustment rod, and the angle adjustment rod can adjust the tilt angle of the pressing wheel to ensure that the wheel body contacts the ground evenly and the pressing effect is consistent.

[0012] 3. The depth-limiting wheel rolls in contact with the ground and is connected to the individual frame via a crank arm. Its height directly determines the depth of furrowing and sowing. The angle of the crank arm is changed by adjusting the rod, which drives the depth-limiting wheel to rise and fall. The depth indicator clearly displays the current set depth. The limit block cooperates with the adjusting rod on the individual frame to limit the maximum adjustment range and avoid the depth being too deep or too shallow. As the depth-limiting wheel rolls, the scraper blade continuously scrapes away the soil adhering to the surface of the wheel, ensuring that the depth-limiting wheel is always in close contact with the ground and ensuring stable depth control accuracy.

[0013] 4. The no-till furrowing blade first cuts into the soil, initially breaking the surface and forming a shallow furrow to prepare for subsequent furrowing. Following the no-till furrowing blade, a pair of tilted discs further widen and deepen the shallow furrow, shaping it into a seed furrow with a regular cross-section. At the same time, the soil along the furrow edges is pushed to both sides. Finally, the furrowing blade assembly performs fine treatment on the bottom of the seed furrow, breaking up and leveling the soil clods at the bottom of the furrow with the blades to ensure that the soil environment for seed implantation is flat and loose, avoiding uneven seed depth due to uneven furrow bottom. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the depth-limiting wheel assembly of this utility model; Figure 3 This is a schematic diagram of the press wheel assembly in this utility model; Figure 4 This is a schematic diagram of the quick-adjustable mounting structure in this utility model; Figure 5 This is a schematic diagram of the four-bar linkage assembly in this utility model.

[0015] In the diagram: 1. Quick-adjustable hanging frame; 101. Hanging plate; 102. Hook; 103. Quick-release screw; 104. Mounting plate; 2. Four-bar linkage assembly; 201. Upper four-bar linkage; 202. Lower four-bar linkage; 203. Screw; 204. Tension spring; 3. Seed metering device; 4. Individual frame; 5. Press wheel assembly; 501. Connecting frame; 502. Press wheel; 503. Ground pressure adjusting rod; 504. Angle adjusting rod; 6. Seed pressing wheel assembly; 7. Depth limiting wheel assembly; 701. Depth limiting wheel; 702. Crank arm; 703. Scraper blade; 704. Depth marker; 705. Limiting block; 706. Adjusting rod; 8. Grooving cutter assembly; 9. Grooving disc assembly; 10. No-till grooving cutter. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0017] like Figures 1-5 As shown, this utility model proposes a novel precision seeder single-row sowing structure, including a quick-adjustable hanging frame 1, a four-bar linkage assembly 2, a seed metering device 3, a single frame 4, a press wheel assembly 5, a seed pressing wheel assembly 6, and a depth limiting wheel assembly 7. The single frame 4 is fixedly connected to a bell metering device on one side, and the four-bar linkage assembly 2 is movably connected to another side of the single frame 4. The quick-adjustable hanging frame 1 is located on the side of the four-bar linkage assembly 2 away from the single frame 4. The depth limiting wheel assembly 7 is located below the single frame 4, and the press wheel assembly 5 is movably connected to another side of the single frame 4. The seed pressing wheel assembly 6 is located between the single frame 4 and the press wheel assembly 5.

[0018] In an optional embodiment, the four-bar assembly 2 includes an upper four-bar 201, a lower four-bar 202, a screw 203, and a tension spring 204. The upper four-bar 201 and the lower four-bar 202 are movably connected to one side of the single frame 4, respectively. The upper four-bar 201 is provided with a screw 203, and a tension spring 204 is fixedly connected to one side of the screw 203. The upper four-bar 201 is movably connected to the lower four-bar 202 through the tension spring 204.

[0019] In an optional embodiment, the quick-adjustable mounting frame 1 includes a mounting plate 101, a hook 102, a quick-release screw 103, and a mounting plate 104. The upper four-link 201 and the lower four-link 202 are movably connected to the mounting plate 104 on the side away from the single frame 4. The mounting plate 104 is provided with a quick-release screw 103. The mounting plate 104 is movably connected to the mounting plate 101 through the quick-release screw 103. The hook 102 is fixedly connected to one side of the scraper. The machine is connected to the main unit via hook 102. Quick-release screw 103 can quickly adjust the relative position of hanging plate 101 and mounting plate 104 to adapt to the hanging height and angle of different main units, ensuring the initial posture of the whole machine is stable. As the main unit moves forward, the upper four-link 201 and lower four-link 202 swing flexibly through the hinge structure. With the elastic tension of tension spring 204, the single frame 4 can adaptively adjust with the undulation of the ground. Screw 203 can adjust the preload of tension spring 204. In hard ground, the tension is increased to ensure the soil penetration depth, and in soft ground, the tension is reduced to avoid excessive penetration, ensuring that the subsequent trenching and sowing depth is not affected by terrain fluctuations.

[0020] In an optional embodiment, the press wheel assembly 5 includes a connecting frame 501, a press wheel 502, a ground-adjusting pressure rod 503, and an angle adjusting rod 504. The connecting frame 501 is provided on one side of the single frame 4, and the press wheel 502 is movably connected inside the connecting frame 501. The ground-adjusting pressure rod 503 and the angle adjusting rod 504 are respectively provided on the connecting parts, and the ground-adjusting pressure rod 503 and the angle adjusting rod 504 cooperate with the press wheel 502. After the seeds are initially fixed by the pressing wheel, the pressing wheel assembly 5 performs the final treatment. The pressing wheel 502 rolls over the soil above the seed furrow, compacting the loose soil around the seeds and making the seeds fit tightly with the soil. At the same time, it reduces soil voids and prevents water from evaporating too quickly. The pressure of the pressing wheel 502 on the ground can be adjusted by the ground pressure adjustment rod 503, and the angle adjustment rod 504 adjusts the tilt angle of the pressing wheel to ensure that the wheel body contacts the ground evenly and the pressing effect is consistent.

[0021] In an optional embodiment, the depth limiting wheel assembly 7 includes a depth limiting wheel 701, a crank arm 702, a scraper blade 703, a depth marker 704, a limiting block 705, and an adjusting rod 706. The crank arm 702 is movably connected to the lower part of the single frame 4. The depth limiting wheel 701 is movably connected to one side of the crank arm 702, and a limiting rod is provided on one side of the single frame 4. A limiting block 705 is provided on one side of the crank arm 702. The limiting block 705 and the limiting rod cooperate with each other. A scraper blade 703 is provided on one side of the crank arm 702. The scraper blade 703 cooperates with the depth limiting wheel 701. The depth limiting wheel 701 rolls in contact with the ground and is connected to the single frame 4 via the crank arm 702. Its height directly determines the depth of furrowing and sowing. The angle of the crank arm 702 is changed by the adjusting rod 706, which drives the depth limiting wheel 701 to rise and fall. The depth indicator 704 displays the current set depth intuitively. The limit block 705 cooperates with the adjusting rod 706 on the single frame to limit the maximum adjustment range and avoid the depth being too deep or too shallow. As the depth limiting wheel rolls, the scraper blade 703 continuously scrapes away the soil adhering to the surface of the wheel, ensuring that the depth limiting wheel is always in close contact with the ground and ensuring stable depth control accuracy.

[0022] In an optional embodiment, a no-till ditching blade 10 is fixedly connected to one side of the single frame 4, a ditching disc assembly 9 is provided on one side of the single frame 4 and a ditching groove cutting blade assembly 8 is provided on one side of the single frame 4 and the ditching disc assembly 9. The no-till ditching blade 10 first cuts into the soil, initially breaking the surface and forming a shallow trench to prepare for subsequent trenching. Following the no-till ditching blade 10, a pair of tilted discs further widen and deepen the shallow trench, shaping a seed trench with a regular cross-section. At the same time, the soil along the trench is pushed to both sides. Finally, the trenching blade assembly 8 performs fine treatment on the bottom of the seed trench, breaking up and leveling the soil clods at the bottom of the trench with the blades to ensure that the soil environment for seed implantation is flat and loose, avoiding uneven seed depth due to unevenness at the bottom of the trench.

[0023] The working principle of this utility model is as follows: When using the device, it is connected to the main unit through the hook 102. The quick-release screw 103 can quickly adjust the relative position of the hanging plate 101 and the mounting plate 104 to adapt to the hanging height and angle of different main units, ensuring the initial posture of the whole machine is stable. As the main unit moves forward, the upper four-link 201 and the lower four-link 202 swing flexibly through the hinge structure. With the elastic tension of the tension spring 204, the single frame 4 can adaptively adjust with the undulation of the ground. The screw 203 can adjust the preload of the tension spring 204. When the ground is hard, the tension is increased to ensure the soil penetration depth. When the ground is soft, the tension is reduced to avoid going too deep, ensuring that the subsequent trenching and sowing depth is not affected by the terrain fluctuations. After the seeds are initially fixed by the pressing wheel, the pressing wheel assembly 5 performs the final treatment. The pressing wheel 502 rolls over the soil above the seed furrow, compacting the loose soil around the seeds, making the seeds and soil adhere closely, reducing soil voids, and preventing water from evaporating too quickly. The pressure of the pressing wheel 502 on the ground can be adjusted by the ground pressure adjustment rod 503, and the angle adjustment rod 504 adjusts the tilt angle of the pressing wheel to ensure that the wheel body contacts the ground evenly and the pressing effect is consistent. The depth limiting wheel 701 rolls in contact with the ground and is connected to the single frame 4 via the crank arm 702. Its height directly determines the depth of furrowing and sowing. The angle of the crank arm 702 is changed by the adjusting rod 706, which drives the depth limiting wheel 701 to rise and fall. The depth indicator 704 displays the current set depth intuitively. The limit block 705 cooperates with the adjusting rod 706 on the single frame to limit the maximum adjustment range and avoid the depth being too deep or too shallow. As the depth limiting wheel rolls, the scraper blade 703 continuously scrapes away the soil adhering to the surface of the wheel, ensuring that the depth limiting wheel is always in close contact with the ground and ensuring stable depth control accuracy. The no-till ditching blade 10 first cuts into the soil, initially breaking the surface and forming a shallow trench to prepare for subsequent trenching. Following the no-till ditching blade 10, a pair of tilted discs further widen and deepen the shallow trench, shaping a seed trench with a regular cross-section. At the same time, the soil along the trench is pushed to both sides. Finally, the trenching blade assembly 8 performs fine treatment on the bottom of the seed trench, breaking up and leveling the soil clods at the bottom of the trench with the blades to ensure that the soil environment for seed implantation is flat and loose, avoiding uneven seed depth due to unevenness at the bottom of the trench.

[0024] It should be understood that the specific embodiments described above are for illustrative purposes or to explain the principles of this utility model, and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A novel single-row seeding structure for a precision seeder, characterized in that: The device includes a quick-adjustable hanging frame (1), a four-bar assembly (2), a seed metering device (3), a single frame (4), a press wheel assembly (5), a seed pressing wheel assembly (6), and a depth limiting wheel assembly (7). The seed metering device (3) is fixedly connected to one side of the single frame (4), and the four-bar assembly (2) is movably connected to one side of the single frame (4). The quick-adjustable hanging frame (1) is provided on the side of the four-bar assembly (2) away from the single frame (4). The depth limiting wheel assembly (7) is provided below the single frame (4), and the press wheel assembly (5) is movably connected to one side of the single frame (4). The seed pressing wheel assembly (6) is provided between the single frame (4) and the press wheel assembly (5).

2. The novel precision seeder single-row sowing structure according to claim 1, characterized in that: The four-bar assembly (2) includes an upper four-bar (201), a lower four-bar (202), a screw (203), and a tension spring (204). The upper four-bar (201) and the lower four-bar (202) are movably connected to one side of the single frame (4). A screw (203) is provided on the upper four-bar (201), and a tension spring (204) is fixedly connected to one side of the screw (203). The upper four-bar (201) is movably connected to the lower four-bar (202) through the tension spring (204).

3. The novel precision seeder single-row sowing structure according to claim 2, characterized in that: The quick-adjustable mounting frame (1) includes a mounting plate (101), a hook (102), a quick-release screw (103), and a mounting plate (104). The upper four-link (201) and the lower four-link (202) are movably connected to the mounting plate (104) on the side away from the single frame (4). The mounting plate (104) is provided with a quick-release screw (103). The mounting plate (104) is movably connected to the mounting plate (101) through the quick-release screw (103). The hook (102) is fixedly connected to one side of the scraper.

4. The novel precision seeder single-row sowing structure according to claim 1, characterized in that: The press wheel assembly (5) includes a connecting frame (501), a press wheel (502), a ground-adjusting pressure rod (503), and an angle adjustment rod (504). The connecting frame (501) is provided on one side of the single frame (4). The press wheel (502) is movably connected inside the connecting frame (501). The ground-adjusting pressure rod (503) and the angle adjustment rod (504) are respectively provided on the connecting parts. The ground-adjusting pressure rod (503) and the angle adjustment rod (504) cooperate with the press wheel (502).

5. The novel precision seeder single-row sowing structure according to claim 1, characterized in that: The depth limiting wheel assembly (7) includes a depth limiting wheel (701), a crank arm (702), a scraper blade (703), a depth marker (704), a limiting block (705), and an adjusting rod (706). The crank arm (702) is movably connected to the bottom of the single frame (4). The depth limiting wheel (701) is movably connected to one side of the crank arm (702), and a limiting rod is provided on one side of the single frame (4). A limiting block (705) is provided on one side of the crank arm (702). The limiting block (705) and the limiting rod cooperate with each other. A scraper blade (703) is provided on one side of the crank arm (702). The scraper blade (703) cooperates with the depth limiting wheel (701).

6. The novel precision seeder single-row sowing structure according to claim 1, characterized in that: The single frame (4) is fixedly connected to a no-till ditching blade (10) on one side, and a ditching disc assembly (9) is provided on the single frame (4) on the side of the no-till ditching blade (10), and a ditching groove cutting blade assembly (8) is provided on the side of the ditching disc assembly (9).

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