Seed taking combined device of tray hole type precision dibbler

Abstract

The utility model relates to the field of agricultural machinery, in particular to a seed taking combined device of a tray hole type precision dibbler, which is mounted on the inner side of a seed blocking cover of the dibbler and mainly comprises a core tray, a seed taking tray and a seed blocking tray, the seed blocking disc is buckled on the periphery of the positioning convex edge of the core disc and is detachably connected with the positioning convex edge of the core disc; the seed taking disc is buckled above the seed blocking disc and can rotate in the circumferential direction of the seed blocking disc, in the rotating process of the seed taking disc, seeds in the seed taking nest of the seed taking disc rotate along with the seed taking disc, and when the seeds pass through the seed throwing notch of the seed blocking disc, the seeds fall into the seed throwing notch from the seed taking nest along the seed discharging opening. The dibbler has the advantages of being reasonable in structure, economical, practical, flexible, convenient, stable in performance, capable of achieving precise seed taking and accurate seed metering, higher in working efficiency due to mutual cooperation of seed taking sub-components, and capable of improving the whole dibbling operation efficiency and quality of the dibbler.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a seed collection combination device for a disc-type precision seeder on a seeder. Background Technology

[0002] In existing technology, precision seeders mainly consist of a moving plate, a fixed plate, a seed chamber, and a seed-dispensing nozzle. During seeding, the fixed plate remains stationary while the moving plate rotates. A seed-collecting device is located within the seed chamber, and the seed-dispensing nozzle rotates with the moving plate. The seed-dispensing nozzle primarily comprises a fixed nozzle and a moving nozzle. The moving nozzle is hinged to the fixed nozzle and can rotate along the hinge point to open and close the seed outlet. When the seed-collecting device throws a seed from the seed chamber into the fixed nozzle, the seed automatically slides down and falls into the seed hole from the seed outlet, completing the seeding process. During the sowing operation, the seeder rotates in the forward direction of the seed-dispensing nozzle, and the various components work together to achieve precise seeding.

[0003] Chinese patent CN201310076864.7 discloses a seed-collecting device for a precision seeder. The main body includes a fixed block with a hole. A movable eight-arm rotating shaft is located within the hole. The eight-arm rotating shaft has a pair of seed-collecting wheels, one male and one female, arranged side-by-side and fitted into a recess in the fixed block. Seed-collecting holes are provided on the outer walls of the male and female wheels. A torsion spring is located at one end of the eight-arm rotating shaft, and an eight-arm is located at the other end. This eight-arm corresponds to a cam plate with a tripping tooth. While this seed-collecting structure can achieve precision seeding and allows for variation in the number and size of seed holes, its structure is relatively complex and cannot fully meet the needs of practical operation.

[0004] In recent years, the disc-type precision seeder has been widely used in agricultural crop sowing operations. Its various components, such as seed collection and seed placement, work together to achieve the technical effect of precision sowing. In order to achieve better precision sowing and make the various components of the disc-type precision seeder universal, and further improve the quality of seed saving, ensuring uniform emergence, and preventing empty holes and misplacement, this utility model designs a new seed collection combination device, which makes sowing efficiency higher and emergence quality better. Summary of the Invention

[0005] The purpose of this utility model is to provide a seed collection combination device for a disc-type precision seeder that is structurally reasonable, economical and practical, has a more complete seed collection function, and whose components work together to achieve higher efficiency and improve the quality of seed collection operations.

[0006] This utility model discloses a seed-collecting combination device for a disc-type precision seeder, which is installed inside the seed-blocking cover of the seeder and mainly includes a core disc, a seed-collecting disc, and a seed-blocking disc.

[0007] The core disc is a bowl-shaped disc body, including a core disc body. The core disc body is provided with bearing mounting holes, positioning screws, and a positioning protrusion on the inner side. The seed-blocking disc is a circular plate-shaped body with an arc-shaped notch on the outer edge, which forms a seed-insertion recess. The seed-blocking disc is fastened to the outer periphery of the positioning protrusion of the core disc and is detachably connected.

[0008] The seed-collecting disc is a circular disc body with a movable disc mounting hole on the disc body. Multiple seed-collecting ports in the shape of notches are evenly distributed around the inner circumference of the seed-collecting disc, and the openings of the seed-collecting ports are set to be clockwise or counterclockwise.

[0009] The lower part of the seed-taking port is the seed-taking hole, which consists of a built-in seed-taking recess and a trumpet-shaped seed-discharging port. The central axis of the seed-taking recess and the seed-discharging port is set in an inclined direction, with the opening facing the inner wall of the seed-taking tray. The seed-taking recess is located at the bottom of the seed-taking hole and is a concave depression with an approximate geometric shape of a half-truncated cone. The bottom of the concave depression is small and the top opening is large. The upper part of the seed-taking recess extends upward and expands to form an incomplete trumpet-shaped seed-discharging port.

[0010] The bottom of the seed-taking hole, located on the outer side of the seed-taking pit, is provided with an outwardly protruding seed-blocking wall, which is an arc-shaped protrusion that is approximately semi-circular.

[0011] The seed-taking port has a forward transition surface at its front end, which is an inclined extension surface. The seed-taking port has a scraping angle on one side at its rear end. The scraping angle is wedge-shaped, with one side being part of the inner circumferential surface of the ring and the other side being the upper end of the rear side wall of the seed-taking hole. The two sides extend and transition to form an intersection, which forms an included angle, a wedge-shaped included angle A, which is an acute angle.

[0012] The seed-collecting tray is fastened above the seed-blocking tray, and the seed-collecting tray can rotate along the circumference of the seed-blocking tray. During the rotation of the seed-collecting tray, the seeds in the seed-collecting hole of the seed-collecting tray rotate together with the seed-collecting tray. When passing the seed-feeding recess of the seed-blocking tray, the seeds fall from the seed-collecting hole into the seed-feeding recess along the seed discharge port.

[0013] Preferably, the structure also includes a seed cleaning brush and a seed extractor. The seed cleaning brush and the seed extractor are both located inside the seed retaining cover and are fixedly connected to the seed retaining cover. The positions of the seed cleaning brush and the seed extractor are both close to the seed taking tray.

[0014] The cleaning brush includes bristles and a bristle base. The seed dispenser includes a seed dispensing head and a spring body. The cleaning brush is fixed to the seed retaining cover with its bristles facing the seed taking plate. In the rotation direction of the seed taking plate, the cleaning brush is installed close to the cleaning slope of the seed taking plate. The seed dispenser has its seed dispensing head facing the seed taking plate. The seed dispenser is installed on the seed retaining cover closer to the seed inlet on the seed retaining cover than the cleaning brush is installed.

[0015] Preferably, the seed-cleaning slope of the seed-collecting tray is an arc-shaped oblique slope that extends obliquely from the outer wall toward the inner circumferential surface of the ring.

[0016] Preferably, the angle B formed by the openings of the evenly distributed seed-taking ports is an acute angle.

[0017] Preferably, the core disk is fixedly connected to the seed-blocking cover via the positioning screw.

[0018] Preferably, the inner side of the core disk is provided with reinforcing ribs.

[0019] This utility model is used in conjunction with existing precision seeders, including the moving plate, seed-blocking cover, and seed-dispensing nozzle. The core plate has a moving plate fixing hole 6, which is used to fix the moving plate of the precision seeder. The seed-collecting plate has a positioning screw 5, which is fixedly connected to the seed-blocking cover of the seeder. The seed-blocking plate is fastened to the outer periphery of the positioning protrusion of the core plate and is detachably connected. The seed-collecting plate is fastened above the seed-blocking plate, and as the moving plate rotates, the seed-collecting plate can rotate along the circumference of the seed-blocking plate. During the rotation of the seed-collecting plate, the seed-collecting cavity of the seed-collecting plate collects seeds from the seed chamber. The seeds in the seed-collecting cavity rotate with the seed-collecting plate. The seed-blocking plate blocks the seeds in the seed-collecting cavity from falling down. As the seeds rotate with the seed-collecting plate, when they pass the seed-dispensing recess of the seed-blocking plate, the seeds fall from the seed-collecting cavity into the seed-dispensing recess along the seed discharge port. Meanwhile, a cleaning brush fixed at the end of the seed-feeding notch along the rotational path can scrape off excess seeds that are stuck and do not fall off, causing them to fall back into the seed chamber. Seeds that fall into the seed-feeding notch will enter the seed-dispensing nozzle along the seed-feeding channel and be sown into the soil. The function of the seed-dispensing device is to accelerate the seed-feeding speed when the seeds slide slowly down the seed-dispensing nozzle after being picked up from the seed-taking hole.

[0020] The seed-collecting tray provided by this utility model is generally fixedly installed inside the moving plate of the seed dispenser during use. Seeds are placed in the seed chamber of the dispenser. When the dispenser rotates, the scraping angle scrapes the seeds into the seed-collecting holes of the seed-collecting tray. Excess seeds are removed by the cleaning slope during rotation. Precisely selected seeds are blocked by the seed-blocking wall and remain in the concave seed-collecting hole with a semi-frustum geometric shape. As the tray rotates, the seeds roll from the bottom of the seed-collecting hole to the opening. Because the seed-collecting hole has a semi-frustum geometric shape, its outlet is large and can send the seeds into the seed discharge port, i.e., the trumpet-shaped seed discharge channel. The seeds slide down the trumpet-shaped seed discharge channel, successfully completing the seed collection and discharge process.

[0021] The seed-collecting assembly provided by this utility model utilizes the cooperation of the core plate, seed-collecting plate, and seed-blocking plate to achieve precise seed collection with high quality. This provides a prerequisite for precision sowing in seed-collecting operations, ensuring that the seed-collecting device saves seeds and avoids empty holes during operation. Because the entire process from seed intake to seed collection is short and fast, it avoids sowing, ensuring precise seed collection and sowing speed, improving efficiency, shortening the sowing period, and further ensuring uniform seedling emergence in the later stage.

[0022] Compared with the prior art, the seed collection combination device of the disc-type precision seeder provided by this utility model has the advantages of reasonable structure, economy and practicality, precision seed collection and accurate seeding, flexibility and convenience, stable performance, and higher working efficiency of the seed collection components working together, which can improve the overall seeding efficiency and quality of the seeder. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the seed collection combination device in Embodiment 1 of this utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0025] Figure 3 for Figure 1 A schematic diagram of the main structure after the combination of the central core plate and the seed retainer plate.

[0026] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction.

[0027] Figure 5 for Figure 3 A schematic diagram of the rear view structure after the combination of the central core plate and the seed retainer plate.

[0028] Figure 6 for Figure 1 A schematic diagram of the main structure of the core disk.

[0029] Figure 7 for Figure 6 Schematic diagram of cross-sectional structure in the CC direction.

[0030] Figure 8 for Figure 6 A schematic diagram of the rear view structure of the central disk.

[0031] Figure 9 for Figure 1 A schematic diagram of the main structure of the middle seed tray.

[0032] Figure 10 This is a schematic diagram of the main structure of the seed-taking tray in Embodiment 1 of this utility model.

[0033] Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure along the DD direction.

[0034] Figure 12 for Figure 10 A schematic diagram of the enlarged portion of the structure.

[0035] Figure 13 for Figure 12 A schematic diagram of the left-side view structure.

[0036] Figure 14 for Figure 10 A schematic diagram of the rear view of the seed collection tray.

[0037] Figure 15 for Figure 14 A schematic diagram of the enlarged portion of the structure.

[0038] Figure 16 for Figure 1 A schematic diagram of the structure of the Zhongqing seed brush.

[0039] Figure 17 for Figure 1 A schematic diagram of the seed release device.

[0040] Figure 18 This is a structural diagram showing the installation position relationship of the seed-collecting combination device of this utility model during use.

[0041] The diagram shows: 1 is the seed-taking disc, 2 is the core disc, 3 is the seed cleaning brush, 4 is the seed dispenser, 5 is the positioning screw, 6 is the moving disc fixing hole, 7 is the bearing mounting hole, 8 is the seed-blocking cover, 9 is the seed inlet, 10 is the seed-feeding recess, 11 is the seed-blocking disc, 12 is the core disc body, 12-1 is the positioning protrusion, 13 is the seed-taking port, 14 is the seed-blocking wall, 15 is the seed scraping angle, 16 is the seed cleaning slope, 17 is the annular inner circumferential surface, 18 is the wedge-shaped included angle A, 19 is the seed-taking hole, 20 is the outer wall, 20-1 is the inner wall, 21 is the included angle B, 22 is the seed discharge port, 23 is the seed-taking nest, 24 is the brush base, 25 is the brush bristles, 26 is the spring body, 27 is the seed-dispensing head, 28 is the seed, 29 is the moving disc of the seeder, 30 is the reinforcing rib, and 31 is the rear side wall of the seed-taking hole. Detailed Implementation

[0042] 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.

[0043] Example 1:

[0044] Reference Figures 1-14 A seed-collecting assembly for a disc-type precision seeder is installed inside the seed-blocking cover 8 of the seeder and mainly includes a core disc 2, a seed-collecting disc 1, and a seed-blocking disc 11.

[0045] The core disk 2 is a bowl-shaped disk body, including a core disk body 12. The core disk body 12 is provided with a bearing mounting hole 7, a positioning screw 5, and a positioning protrusion 12-1 on the inner side. The seed-blocking disk 11 is an annular plate with an arc-shaped notch on the outer edge, which forms a seed-feeding recess 10. The seed-blocking disk 11 is fastened to the outer periphery of the positioning protrusion 12-1 of the core disk 2 and is detachably connected.

[0046] The seed collection tray 1 is a circular tray body with a moving plate mounting hole 6 on the tray body. Multiple seed collection ports 13 with concave shape are evenly distributed around the inner ring of the seed collection tray 1. The openings of the seed collection ports 13 are set to be clockwise or counterclockwise.

[0047] The lower part of the seed-taking opening 13 is the seed-taking hole 19, which is composed of a built-in seed-taking recess 23 and a trumpet-shaped seed-discharging opening 22. The central axis of the seed-taking recess and the seed-discharging opening is set in an inclined direction, and the opening faces the inner sidewall 20-1 of the seed-taking tray 1. The seed-taking recess 23 is located at the bottom of the seed-taking hole 19 and is a recess with a shape that is approximately half a truncated cone. The bottom of the recess is small and the top opening is large. The upper part of the seed-taking recess 23 extends upward and expands to form an incomplete trumpet-shaped seed-discharging opening 22.

[0048] The bottom of the seed-taking hole 2, located on the outer side of the seed-taking hole 19, is provided with an outwardly protruding seed-blocking wall 14, which is an arc-shaped protrusion in an approximately semi-circular shape.

[0049] The seed-taking port 13 has a forward transition to a seed-cleaning inclined surface 16, which is an inclined extension surface. The seed-scraping angle 15 is provided on one side of the rear end of the seed-taking port 13. The seed-scraping angle 15 is wedge-shaped, with one side being part of the annular inner circumferential surface 17 and the other side being the upper end of the rear side wall 31 of the seed-taking hole. The two surfaces extend and transition to form an intersection, which forms an included angle, a wedge-shaped included angle A18, which is an acute angle.

[0050] The seed-collecting tray 1 is fastened above the seed-blocking tray 11, and the seed-collecting tray 1 can rotate along the circumference of the seed-blocking tray 11. During the rotation of the seed-collecting tray 1, the seeds in the seed-collecting hole 23 of the seed-collecting tray 1 rotate together with the seed-collecting tray 1. When passing through the seed-feeding recess 10 of the seed-blocking tray 11, the seeds fall from the seed-collecting hole 23 into the seed-feeding recess 10 along the seed discharge port 22.

[0051] The seed-cleaning slope 16 of the seed-collecting tray 1 is an arc-shaped oblique slope that extends obliquely from the outer wall 20 toward the inner annular surface 17.

[0052] The angle B21 formed by the openings of the evenly distributed seed-taking ports 13 is an acute angle.

[0053] The core disk 2 is fixedly connected to the seed cover 8 via the positioning screw 5.

[0054] This utility model is used in conjunction with existing precision seeders, including the moving plate, seed-blocking cover, and seed-dispensing nozzle. The core plate 2 has a moving plate fixing hole 6, which is used to fix the moving plate of the precision seeder. The seed-collecting plate 1 has a positioning screw 5, which is fixedly connected to the seed-blocking cover of the seeder. The seed-collecting plate 1 is fastened above the seed-blocking plate 11, and as the moving plate rotates, the seed-collecting plate 1 can rotate in a circumferential direction. During the rotation of the seed-collecting plate 1, the seed-collecting cavity 23 of the seed-collecting plate 1 collects seeds from the seed chamber. The seeds in the seed-collecting cavity 23 rotate with the seed-collecting plate 1. The seed-blocking plate 11 blocks the seeds from falling into the seed-collecting cavity 23. As the seeds rotate with the seed-collecting plate 1, when they pass through the seed-dispensing recess 10 of the seed-blocking plate 11, the seeds fall from the seed-collecting cavity 23 into the seed-dispensing recess 10 along the seed discharge port 22. Seeds that fall into the seeding notch 10 will enter the seeding nozzle along the seeding channel and be seeded into the soil.

[0055] Example 2:

[0056] Compared with Example 1, the difference in this example is:

[0057] The seed collection assembly of the disc-type precision seeder further includes a seed cleaning brush 3 and a seed distributor 4. The seed cleaning brush 3 and the seed distributor 4 are both located inside the seed blocking cover 8 and are fixedly connected to the seed blocking cover 8. The positions of the seed cleaning brush 3 and the seed distributor 4 are both close to the seed collection disc 1.

[0058] The structure of the seed cleaning brush 3 includes bristles 25 and a bristle base 24. The structure of the seed dispenser 4 includes a seed dispensing head 27 and a spring body 26. The seed cleaning brush 3 is fixed on the seed retaining cover 8, with the bristles 25 facing the seed taking plate 1. In the rotation direction of the seed taking plate 1, the installation position of the seed cleaning brush 3 is close to the seed cleaning inclined surface 16 of the seed taking plate 1. The seed dispenser 4 has its seed dispensing head 27 facing the seed taking plate 1. The installation position of the seed dispenser 4 on the seed retaining cover 8 is closer to the seed inlet 9 on the seed retaining cover 8 than the installation position of the seed cleaning brush 3.

[0059] As the seed-collecting disc 1 rotates, the seeds fall from the seed-collecting hole 23 into the seed-collecting hole 10 along the seed discharge port 22 when passing through the seed-feeding recess 10 of the seed-blocking disc 11. Simultaneously, the seed-cleaning brush 3, fixed at the end of the seed-feeding recess 10 along the travel path, scrapes off any excess seeds that are stuck and do not fall, allowing them to fall back into the seed chamber. The seed-dispensing device 4 accelerates the seed-feeding speed when the seed-collecting disc 1 rotates to a certain angle and the seeds collected through the seed-collecting hole 19 slide slowly towards the seed nozzle. The structure connecting the seed-dispensing head 27 to the spring body 26 increases the elasticity of the seed-dispensing head 27 during contact with the seed-collecting disc 1.

[0060] Example 3:

[0061] Compared with Embodiment 1, the difference in this embodiment is that: the inner side of the core disk body 12 is provided with reinforcing ribs 30.

[0062] Example 4:

[0063] Compared with Embodiment 2, the difference in this embodiment is that: the inner side of the core disk body 12 is provided with reinforcing ribs 30.

[0064] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A seed taking combination device of a disc hole type precision dibbler, which is installed in the inside of a seed blocking cover of the dibbler, characterized in that Mainly including core disc, take seed disc, seed blocking disc; The core disc is a bowl-shaped disc body, comprising a core disc disc body, a bearing mounting hole, a positioning screw rod, and a positioning convex edge arranged on the inner side; the seed blocking disc is a circular ring-shaped sheet body, and an arc-shaped notch is arranged on the outer edge, and the arc-shaped notch forms a seed throwing notch; the seed blocking disc is detachably connected to the outer periphery of the positioning convex edge of the core disc; The seed taking disc is a circular ring-shaped disc body, and a dynamic disc mounting hole is arranged on the seed taking disc disc body; a plurality of notch-shaped seed taking openings are uniformly distributed on the inner circle of the seed taking disc; the opening of the seed taking opening is arranged to be inclined to the clockwise or counterclockwise direction. The lower part of the seed taking opening is a seed taking hole, which is composed of an embedded seed taking nest and a horn-shaped seed discharge opening; the central axis of the seed taking nest and the seed discharge opening is arranged in an inclined direction, and the opening is directed to the inner side wall of the seed taking disc; the seed taking nest is arranged at the bottom of the seed taking hole, and has a shape similar to a half circular truncated cone geometric shape; the lower bottom of the seed taking nest is small, and the upper opening is large; the upper part of the seed taking nest extends upward and expands to form an incomplete horn-shaped seed discharge opening. The lower bottom of the seed taking nest, i.e., the outer side position of the seed taking hole, is provided with an outwardly protruding seed blocking wall in the shape of an approximately semicircular arc-shaped protrusion. The front end of the seed taking opening is provided with a seed cleaning inclined surface, and the seed cleaning inclined surface is an inclined extension surface; one side of the rear end of the seed taking opening is provided with a seed scraping corner, and the seed scraping corner is a wedge-shaped body, one surface of which is part of the inner circumferential surface, and the other surface is the upper end of the rear side wall surface of the seed taking hole; the two surfaces are extended and transitioned to form an intersection, and an included angle is formed after the intersection, which is a wedge-shaped included angle A, and the wedge-shaped included angle A is an acute angle. The seed taking disc is connected above the seed blocking disc, and the seed taking disc can rotate along the circumferential direction of the seed blocking disc; in the rotating process of the seed taking disc, the seeds in the seed taking nest of the seed taking disc rotate together with the seed taking disc; when passing through the seed throwing notch of the seed blocking disc, the seeds fall into the seed throwing notch from the seed discharge opening.

2. The seed taking assembly of the pocket precision planter according to claim 1, wherein The structure further comprises a seed cleaning brush and a seed shifter, which are arranged on the inner side of the seed blocking cover and are fixedly connected with the seed blocking cover; the seed cleaning brush and the seed shifter are arranged close to the seed taking disc.

3. The seed taking assembly of the pocket precision planter of claim 2, wherein The structure of the seed cleaning brush comprises bristles and a bristle base, and the structure of the seed shifter comprises a seed shifter head and a spring body; the seed cleaning brush is fixed on the seed blocking cover, and the bristles are directed to the seed taking disc; in the rotating direction of the seed taking disc, the installation position of the seed cleaning brush is close to the seed cleaning inclined surface of the seed taking disc; the seed shifter head is directed to the seed taking disc, and the installation position of the seed shifter on the seed blocking cover is closer to the seed inlet of the seed blocking cover than the installation position of the seed cleaning brush.

4. The seed taking assembly of a pocket precision planter according to claim 1, 2 or 3, wherein The seed cleaning inclined surface of the seed taking disc is an arc-shaped inclined chamfer surface extending from the outer side wall to the inner circumferential surface.

5. The seed taking assembly of the pocket precision planter of claim 4, wherein The included angle B formed by the opening shape of the uniformly distributed seed taking openings is an acute angle.

6. The seed taking assembly of a pocket precision planter according to claims 1, 2 or 3, wherein The core disc is fixedly connected with the seed blocking cover through the positioning screw rod.

7. The seed taking assembly of the pocket precision planter of claim 5, wherein The core disc is fixedly connected with the seed blocking cover through the positioning screw rod.

8. The seed taking assembly of a pocket precision planter according to claims 1, 2 or 3, wherein A reinforcing rib is arranged on the inner side of the core disc disc body.

9. The seed taking assembly of the pocket precision planter of claim 7, wherein A reinforcing rib is arranged on the inner side of the core disc disc body.

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