Seed selection device of agricultural seeding machine

Abstract

The utility model discloses a seed selection device of agricultural seeding machinery, which comprises a box body, a filter box arranged at the upper end of the box body, a blanking chamber arranged at the upper end of the filter box, a feed hopper arranged at the upper end of the blanking chamber, a rotating rod rotatably arranged in the blanking chamber, and a first motor arranged outside the blanking chamber and fixedly connected with one end of the rotating rod, a guide plate is obliquely arranged in the filter box, an air inlet pipe and an air outlet pipe are arranged on the two sides of the filter box correspondingly, supports are fixedly arranged in the air inlet pipe and the air outlet pipe correspondingly, rotating shafts are rotationally arranged on the two supports correspondingly, and a plurality of fan blades movably arranged in the air inlet pipe are fixedly arranged on the rotating shafts; and one end of the rotating shaft penetrates through the bracket and is fixedly connected with a second motor arranged on the bracket, so that substances such as scurf and empty shells in the seeds can be removed before the seeds are screened and seeded, the condition that the sieve plate is blocked by the substances such as the scurf and the empty shells in the seed screening and seeding process is avoided, and normal screening and seeding of the seeds are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of seed selection, and more specifically, to a seed selection device for agricultural sowing machinery. Background Art

[0002] In agricultural production, sowing machinery is an important tool to improve sowing efficiency and ensure sowing quality. For some crops with high sowing requirements, it is necessary to use a seed selection device to select seeds before mechanical sowing, so as to select seeds of appropriate size to ensure that the crop emergence rate after subsequent sowing is high and the growth of crops is relatively consistent. During the use of the seed selection device of the existing agricultural sowing machinery, since the seeds are often mixed with a large amount of dandruff and empty shells and other substances, these substances can easily clog the sieve plate during the seed selection process, thereby affecting the normal seed selection; secondly, during the use of the seed selection device of the existing agricultural sowing machinery, the seeds are usually screened through multiple sieve plates, and the sieve plates are usually fixed inside the device, and the seeds are screened by their own gravity. This screening method easily causes some seeds to be stuck in the sieve holes, and the seeds cannot fall out of the sieve holes smoothly by relying solely on their own gravity, thereby reducing the effect of seed selection and greatly reducing the work efficiency of seed selection. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a seed selection device for agricultural sowing machinery to solve the technical problem mentioned in the background technology that during use, the seeds of the existing seed selection device for agricultural sowing machinery are often mixed with a large amount of dandruff and empty shells, which can easily clog the screen plate.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seed selection device for an agricultural sowing machinery, comprising a box body, a filter box is provided at the upper end of the box body, a material discharge chamber is provided at the upper end of the filter box, a feed hopper is provided at the upper end of the material discharge chamber, a rotating rod is rotatably provided in the material discharge chamber, one end of the rotating rod passes through the material discharge chamber and is fixedly connected to a first motor arranged outside the material discharge chamber, a plurality of material discharge plates are fixedly provided on the rotating rod, a guide plate is obliquely provided in the filter box, an air inlet pipe and an air outlet pipe are respectively provided on both sides of the filter box, brackets are respectively fixedly provided in the air inlet pipe and the air outlet pipe, a rotating shaft is rotatably provided on the two brackets, a plurality of fan blades movably arranged in the air inlet pipe are fixedly provided on the rotating shaft, and one end of the rotating shaft passes through the bracket and is fixedly connected to a second motor arranged on the bracket;

[0007] Two sieve plates are movably arranged in the box body, a rack is fixedly connected between the two sieve plates, and the rack is meshingly connected with a half gear.

[0008] The utility model is further configured as follows: four support plates are fixedly provided in the box body, each support plate is movably provided with a lifting rod, the upper end of the lifting rod is fixedly connected to the sieve plate, and two connecting columns are fixedly connected between the two sieve plates to facilitate the movement of the sieve plates.

[0009] The utility model is further configured that the lower end of each lifting rod passes through the support plate and is fixedly connected to a limiting plate, so as to limit the lifting rod.

[0010] The utility model is further configured that a spring is provided on the outer movable sleeve of each lifting rod, and the spring is arranged between the support plate and the limit plate to facilitate the movement of the lifting rod.

[0011] The utility model is further configured that a third motor is fixedly provided on one side of the box body, and a driving end of the third motor extends into the box body and is fixedly connected to the half gear to facilitate the rotation of the half gear.

[0012] The utility model is further configured that two first discharge pipes are provided at one side of the box body, and a second discharge pipe is fixedly provided at the lower end of the box body, so as to facilitate the selection of seeds of different sizes.

[0013] The utility model is further configured such that a support frame is fixedly provided in the air outlet pipe, a filter plate is provided on the support frame, and a collection box is slidably connected to the lower end of the air outlet pipe to facilitate the collection of substances such as dandruff and empty shells.

[0014] The utility model is further configured that one end of the rotating shaft passes through the bracket and is fixedly connected with a cleaning plate, so as to facilitate scraping and cleaning of the filter plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a seed selection device for agricultural sowing machinery, which has the following beneficial effects:

[0017] 1. Through the cooperation of the box body, the filter box, the unloading chamber, the feed hopper, the rotating rod, the first motor, the unloading plate, the guide plate, the air inlet pipe, the air outlet pipe, the bracket, the rotating shaft, the fan blades and the second motor, the dander and the empty shells in the seeds can be removed before the seeds are sorted and seeded, thereby avoiding the dander and the empty shells from clogging the screen plate during the seed sorting and seeding process, and ensuring the normal sorting and seeding of the seeds.

[0018] 2. Through the coordination of the sieve plate, the rack, the half gear, the support plate, the lifting rod, the connecting column, the limit plate, the spring, the third motor, the first discharge pipe and the second discharge pipe, the two sieve plates can be vibrated during the seed sorting process, ensuring that the seeds that meet the size can fall smoothly from the sieve holes, thereby accelerating the seed selection efficiency and improving the seed selection effect.

[0019] 3. Through the coordination of the support frame, filter plate, collection box and cleaning plate, the dandruff and empty shells in the air blown out from the filter chamber can be intercepted and collected to avoid polluting the surrounding working environment. At the same time, the filter plate can be automatically cleaned to avoid clogging, thus ensuring the normal use of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a seed selection device of an agricultural sowing machine in use;

[0021] Figure 2 It is a schematic diagram of the overall structure of a seed selection device of an agricultural sowing machine in a use state from another perspective;

[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the blanking chamber and its connecting parts when the blanking plate is in a rotating state;

[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the box body and its connecting parts when the screen plate is in a vibrating state;

[0024] Figure 5 for Figure 4 A is a partial enlarged schematic diagram of the middle part.

[0025] In the figure: 1. box body; 2. filter box; 3. discharge chamber; 4. feed hopper; 5. rotating rod; 6. first motor; 7. discharge plate; 8. guide plate; 9. air inlet pipe; 10. air outlet pipe; 11. bracket; 12. rotating shaft; 13. fan blade; 14. second motor; 15. sieve plate; 16. rack; 17. half gear; 18. support plate; 19. lifting rod; 20. connecting column; 21. limit plate; 22. spring; 23. third motor; 24. first discharge pipe; 25. second discharge pipe; 26. support frame; 27. filter plate; 28. collection box; 29. ​​cleaning plate. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 , a seed selection device for an agricultural sowing machinery comprises a box body 1, a filter box 2 is provided at the upper end of the box body 1, a material discharge chamber 3 is provided at the upper end of the filter box 2, a feed hopper 4 is provided at the upper end of the material discharge chamber 3, a rotating rod 5 is rotatably provided in the material discharge chamber 3, one end of the rotating rod 5 passes through the material discharge chamber 3 and is fixedly connected to a first motor 6 arranged outside the material discharge chamber 3, a plurality of material discharge plates 7 are fixedly provided on the rotating rod 5, a guide plate 8 is obliquely provided in the filter box 2, an air inlet pipe 9 and an air outlet pipe 10 are respectively provided on both sides of the filter box 2, a bracket 11 is fixedly provided in the air inlet pipe 9 and the air outlet pipe 10, a rotating shaft 12 is rotatably provided on the two brackets 11, a plurality of fan blades 13 movably arranged in the air inlet pipe 9 are fixedly provided on the rotating shaft 12, and one end of the rotating shaft 12 passes through the bracket 11 and is fixedly connected to a second motor 14 arranged on the bracket 11;

[0030] Two sieve plates 15 are movably disposed in the box body 1 , a rack 16 is fixedly connected between the two sieve plates 15 , and a half gear 17 is meshedly connected to the rack 16 .

[0031] In this embodiment, the seeds to be selected are placed in the feed hopper 4, and the first motor 6 is started. The first motor 6 drives the rotating rod 5 to rotate, and the rotating rod 5 drives multiple discharge plates 7 to rotate, so that the discharge plates 7 discharge the seeds in the feed hopper 4 at a uniform speed. The seeds discharged through the discharge plates 7 will enter the filter box 2, and the second motor 14 is started. The second motor 14 drives the rotating shaft 12 to rotate on the two brackets 11, and the rotating shaft 12 drives multiple fan blades 13 to rotate, so that the external air is sucked into the filter box 2 from the air inlet pipe 9, and then blown out from the air outlet pipe 10. In this process, the wind blows on the falling seeds. Since the dandruff and empty shells are lighter, they will enter the blowing pipe with the wind, thereby removing the dandruff and empty shells and other materials.

[0032] More specifically, the seeds are placed in the feed hopper 4, and the multiple feed plates 7 are rotated to feed them uniformly. The fan drives the air flow to blow the dandruff and empty shells in the seeds into the air outlet 10, thereby removing them. The seeds without dandruff and empty shells will enter the box 1, and then pass through two sieve plates 15. The sieve plates 15 are provided with sieve holes to sort and select seeds of different sizes. At the same time, the half gear 17 rotates. When the half gear 17 rotates to engage with the rack 16, the rack 16 moves upward with the rotation of the half gear 17, and the rack 16 drives the two sieve plates 15 to move upward. When the half gear 17 rotates to separate from the rack 16, the two sieve plates 15 move back to their original positions, causing the sieve plates 15 to vibrate, thereby screening and selecting the seeds.

[0033] See also Figure 1-5 , as an implementation method for vibrating the sieve plate 15: four support plates 18 are fixedly provided in the box body 1, and a lifting rod 19 is movably provided on each of the support plates 18, and the upper end of the lifting rod 19 is fixedly connected to the sieve plate 15, and two connecting columns 20 are fixedly connected between the two sieve plates 15, and the lower end of each lifting rod 19 passes through the support plate 18 and is fixedly connected to a limiting plate 21, and a spring 22 is movably sleeved on the outer side of each lifting rod 19, and the spring 22 is arranged between the support plate 18 and the limiting plate 21, and a third motor 23 is fixedly provided on one side of the box body 1, and the driving end of the third motor 23 extends into the box body 1 and is fixedly connected to the half gear 17, and two first discharge pipes 24 are provided on one side of the box body 1, and a second discharge pipe 25 is fixedly provided at the lower end of the box body 1.

[0034] Specifically, the third motor 23 is started, and the third motor 23 drives the half gear 17 to rotate. When the half gear 17 rotates to engage with the rack 16, the rack 16 moves upward as the half gear 17 rotates, and the rack 16 drives the two sieve plates 15 to move upward. The two connecting columns 20 increase the connection between the two sieve plates 15, and the sieve plates 15 drive the lifting rod 19 to move. The limiting plate 21 limits the lifting rod 19, and the spring 22 is compressed. When the half gear 17 rotates to separate from the rack 16, the limiting plate 21 drives the lifting rod 19 and the sieve plate 15 to move back to their original positions under the push of the spring 22. The operation is repeated, so that the sieve plate 15 vibrates, thereby screening and selecting seeds and preventing seeds from clogging the sieve holes.

[0035] See also Figure 1-5 As an implementation method for collecting dandruff and empty shells: a support frame 26 is fixedly provided in the air outlet pipe 10, a filter plate 27 is provided on the support frame 26, a collection box 28 is slidably connected to the lower end of the air outlet pipe 10, and one end of the rotating shaft 12 passes through the bracket 11 and is fixedly connected to a cleaning plate 29.

[0036] Specifically, when dandruff and empty shells are blown into the air outlet 10, they will be intercepted by the filter plate 27 and collected in the collection box 28 under the action of gravity. The collection box 28 can be pulled regularly to be disassembled for cleaning, and the filtered air will be discharged from the air outlet 10. While filtering the dandruff and empty shells, the rotating shaft 12 drives the cleaning plate 29 to rotate. One side of the cleaning plate 29 is connected to the filter plate 27, so as to scrape and clean it to avoid clogging.

[0037] In summary, when the overall equipment is in use:

[0038] When it is necessary to remove the dandruff, empty shells and other materials in the seeds, the seeds to be selected are placed in the feed hopper 4, and the first motor 6 is started. The first motor 6 drives the rotating rod 5 to rotate, and the rotating rod 5 drives multiple unloading plates 7 to rotate, so that the unloading plates 7 discharge the seeds in the feed hopper 4 at a uniform speed, and the seeds discharged through the unloading plates 7 will enter the filter box 2, and the second motor 14 is started. The second motor 14 drives the rotating shaft 12 to rotate on the two brackets 11, and the rotating shaft 12 drives multiple fan blades 13 to rotate, so that the external air is sucked into the filter box 2 from the air inlet pipe 9, and then blown out from the air outlet pipe 10. In this process, the wind blows on the falling seeds, and since the dandruff and empty shells are lighter, they will enter the blowing pipe with the wind, thereby removing the dandruff, empty shells and other materials.

[0039] When it is necessary to collect the removed dandruff, empty shells and other materials, the dandruff and empty shells will be blown into the air outlet pipe 10 and intercepted by the filter plate 27, and enter the collection box 28 for collection under the action of gravity. The collection box 28 can be pulled regularly to be disassembled for cleaning, and the filtered air will be discharged from the air outlet pipe 10. While filtering the dandruff and empty shells, the rotating shaft 12 drives the cleaning plate 29 to rotate. One side of the cleaning plate 29 is connected to the filter plate 27, so as to scrape and clean it to avoid clogging.

[0040] When it is necessary to select seeds according to different sizes, the seeds without dandruff, empty shells and other materials will enter the box 1, and then pass through the two sieve plates 15. The sieve plates 15 are provided with sieve holes to sort and select seeds of different sizes. The sieved seeds will be discharged from the two first discharge pipes 24 and the first discharge pipe 24 respectively. During the screening process, the third motor 23 is started at the same time, and the third motor 23 drives the half gear 17 to rotate. When the half gear 17 rotates to mesh with the rack 16, the gear 16 is driven by the rotation of the half gear 17. The bar 16 moves upward, the rack 16 drives the two sieve plates 15 to move upward, the two connecting columns 20 increase the connection between the two sieve plates 15, the sieve plate 15 drives the lifting rod 19 to move, the limit plate 21 limits the lifting rod 19, the spring 22 is compressed, and when the half gear 17 rotates to separate from the rack 16, the limit plate 21 drives the lifting rod 19 and the sieve plate 15 to move back to the original position under the push of the spring 22, and the operation is repeated, so that the sieve plate 15 vibrates, thereby screening and selecting seeds, and preventing seeds from clogging the sieve holes. The entire device is controlled by a controller. Since the equipment matched with the controller is a common equipment and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be repeated here.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A seed selection device for an agricultural sowing machine, comprising a housing (1), characterized in that: The upper end of the box body (1) is provided with a filter box (2), the upper end of the filter box (2) is provided with a material discharge chamber (3), the upper end of the material discharge chamber (3) is provided with a feed hopper (4), a rotating rod (5) is rotatably provided in the material discharge chamber (3), one end of the rotating rod (5) passes through the material discharge chamber (3) and is fixedly connected to a first motor (6) arranged outside the material discharge chamber (3), a plurality of material discharge plates (7) are fixedly provided on the rotating rod (5), a guide plate (8) is obliquely provided in the filter box (2), and the An air inlet pipe (9) and an air outlet pipe (10) are respectively arranged on both sides of the filter box (2); a bracket (11) is fixedly arranged in the air inlet pipe (9) and the air outlet pipe (10); a rotating shaft (12) is rotatably arranged on the two brackets (11); a plurality of fan blades (13) movably arranged in the air inlet pipe (9) are fixedly arranged on the rotating shaft (12); one end of the rotating shaft (12) passes through the bracket (11) and is fixedly connected to a second motor (14) arranged on the bracket (11); Two sieve plates (15) are movably arranged in the box body (1), a rack (16) is fixedly connected between the two sieve plates (15), and the rack (16) is meshingly connected with a half gear (17).

2. The seed selection device for agricultural sowing machinery according to claim 1, characterized in that: Four support plates (18) are fixedly arranged in the box body (1), and a lifting rod (19) is movably arranged on each of the support plates (18). The upper end of the lifting rod (19) is fixedly connected to the sieve plate (15), and two connecting columns (20) are fixedly connected between the two sieve plates (15).

3. The seed selection device for agricultural sowing machinery according to claim 2, characterized in that: The lower end of each lifting rod (19) passes through the support plate (18) and is fixedly connected to the limiting plate (21).

4. The seed selection device for agricultural sowing machinery according to claim 3 is characterized in that: A spring (22) is provided on the outer movable sleeve of each lifting rod (19), and the spring (22) is arranged between the support plate (18) and the limit plate (21).

5. The seed selection device for agricultural sowing machinery according to claim 4, characterized in that: A third motor (23) is fixedly provided on one side of the box body (1), and a driving end of the third motor (23) extends into the box body (1) and is fixedly connected to the half gear (17).

6. The seed selection device for agricultural sowing machinery according to claim 5, characterized in that: Two first discharge pipes (24) are provided on one side of the box body (1), and a second discharge pipe (25) is fixedly provided on the lower end of the box body (1).

7. A seed selection device for agricultural sowing machinery according to any one of claims 1 or 2, characterized in that: A support frame (26) is fixedly provided inside the air outlet pipe (10), a filter plate (27) is provided on the support frame (26), and a collection box (28) is slidably connected to the lower end of the air outlet pipe (10).

8. The seed selection device for agricultural sowing machinery according to claim 7, characterized in that: One end of the rotating shaft (12) passes through the bracket (11) and is fixedly connected to a cleaning plate (29).

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