Single channel seed carrying method and seed carrying mechanism of air-suction cylinder type hole drill

By designing a single-channel seed-carrying mechanism for the air-suction roller-type seeder, the problem of large seeds being obstructed while rolling within the seed channel was solved, enabling smooth seed discharge and stable sowing.

CN117859462BActive Publication Date: 2026-05-19SHANDONG ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
Filing Date
2024-02-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing air-suction roller seeders have a problem when using a secondary seeding mechanism to dispense large seeds: the seeds are obstructed from rolling and cannot be dispensed, which affects the stability of seeding and the single-seed rate.

Method used

Design a single-channel seed-carrying mechanism for a pneumatic roller-type seed planter. The seed channel shell and seed channel cover form a quadrilateral seed channel space and a side channel. Seeds enter the side channel from the inoculation box and move along the side channel, eventually entering the seed channel space and being discharged with the rotation of the seed planter.

Benefits of technology

This ensures unidirectional seed movement within the side channels and seed passages, preventing backtracking, increasing seed movement space, facilitating smooth seed discharge, and improving seed discharge stability and single-seed rate.

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Abstract

Air suction roller type hole seeder single channel seed carrying method and seed carrying mechanism, relate to the technical field of seeding, and are used for solving the problem that large particle seeds are blocked in the seed path and cannot be discharged in the secondary seed feeding mechanism of the existing air suction roller type hole seeder. The air suction roller type hole seeder single channel seed carrying method and seed carrying mechanism comprise a seed path shell, a seed path cover plate and a seed inoculation box, the seed path shell and the seed path cover plate are fixedly connected and the lower parts of the two enclose a seed path space, the upper parts of the seed path shell and the seed path cover plate enclose a placing space, the seed inoculation box is located in the placing space, the top of the seed inoculation box is open, the inside of the seed inoculation box is provided with a curved surface, the sidewall of the seed inoculation box is provided with a window connected with the low point of the curved surface, the seed path cover plate is provided with a side channel, one end of the side channel is communicated with the window, the other end of the side channel is communicated with the seed path space, and the seed path shell is provided with a seed discharge port communicated with the seed path space. Through the arrangement of the side channel and the seed path space, the seed moves in one direction in a large space, and accurate seed discharge is realized.
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Description

Technical Field

[0001] This invention relates to the field of sowing technology, specifically to a single-channel seed-carrying method and mechanism for an air-suction roller-type seeder. Background Technology

[0002] The existing air-suction roller-type seed planter uses a secondary seeding mechanism, which is a left-right structure divided into an inner seed channel and an outer seed channel. During seed carrying, the seeds need to roll within both channels. Due to space limitations, the width of the inner and outer seed channels is limited. When planting larger seeds (such as peanut seeds), the seeds are obstructed from rolling within the channels, sometimes failing to exit the outlet, affecting the single-seed rate and directly impacting the seeding stability of the air-suction roller-type seed planter. For example, Chinese Patent 201910273621X discloses a finger-clamp composite seed planter that uses finger clamps and rollers to carry seeds, achieving secondary seeding for large and medium-sized crop seeds. The drawback of the above-mentioned patented technology is that it still requires a secondary seeding mechanism for seed distribution, resulting in insufficient stability and a low single-seed rate when distributing large seeds. Summary of the Invention

[0003] The purpose of this invention is to provide a single-channel seed-carrying method and mechanism for a pneumatic roller seeder, which solves the problem that large seeds cannot be discharged when the existing pneumatic roller seeder uses a secondary seeding mechanism to discharge seeds.

[0004] The technical solution adopted by this invention to solve its technical problem is: a single-channel seed-carrying mechanism for an air-suction roller-type seeder, including a seed channel shell, a seed channel cover plate, and an inoculation box. The seed channel shell and the seed channel cover plate are in contact and fixed, and their lower parts form a quadrilateral seed channel space. The upper parts of the seed channel shell and the seed channel cover plate form a placement space. The inoculation box is located in the placement space. The top of the inoculation box is open to receive falling seeds. The interior of the inoculation box has a sloping curved surface. The side wall of the inoculation box has a window that connects to the lowest point of the sloping curved surface. The seed channel cover plate has a side channel. One end of the side channel is a side channel entrance communicating with the window, and the other end of the side channel is a side channel outlet communicating with the seed channel space. The seed channel shell has a seed discharge port communicating with the seed channel space.

[0005] Furthermore, the seed channel shell includes a shell side plate and a shell enclosure plate. One side of the shell enclosure plate is fixed in contact with the shell side plate, and the other side of the shell enclosure plate is fixed in contact with the seed channel cover plate. A seed discharge port is formed between the two ends of the shell enclosure plate.

[0006] Furthermore, the seed channel cover plate includes a cover plate side plate and a side channel plate. One side of the cover plate side plate is in contact with and fixed to the other side of the housing enclosure plate. The side channel plate is fixed to the other side of the cover plate side plate and protrudes outward, forming a side channel between the two.

[0007] Furthermore, the top of the inoculation box has an inoculation box boss, and the top of the shell side plate and the cover side plate has a slide rail, and the inoculation box boss is slidably connected to the slide rail.

[0008] Furthermore, the top of the housing enclosure has an inoculation box baffle, and the side wall of the inoculation box contacts the inoculation box baffle to limit the position of the inoculation box.

[0009] Furthermore, the side panel of the housing has a housing mounting plate, which is used to fix the side panel of the housing in place.

[0010] Furthermore, the cover plate side panel has a cover plate mounting plate, which is used to fix the cover plate side panel in place.

[0011] This invention also provides a single-channel seed-carrying method for an air-suction roller-type seeder, comprising the following steps:

[0012] S1. Place the seeds into the inoculation box when it is at the lowest point;

[0013] S2. The seed moves along the inclined curved surface and enters the side passage entrance through the window;

[0014] S3. The seeds then move within the side channel and fall into the seed channel space through the side channel exit.

[0015] S4. As the seed channel shell rotates, the seeds move along the inner wall of the shell and eventually exit the seed channel space through the seed outlet.

[0016] The beneficial effects of this invention are as follows: By configuring the seed channel shell and seed channel cover, this invention forms a side channel and a seed channel space, allowing seeds to enter the side channel from the inoculation box, move along the side channel, and then enter the seed channel space. Subsequently, as the seeder rotates, the seeds move along the inner wall of the seed channel space and are finally removed through the seed outlet to achieve sowing. When the seeds move within the side channel and seed channel space, they move in one direction only, without any backtracking, and the large space for seed movement ensures smooth seed discharge. Attached Figure Description

[0017] Figure 1 This is one of the three-dimensional diagrams of the seed-carrying mechanism of the present invention;

[0018] Figure 2 This is the second three-dimensional diagram of the seed-carrying mechanism of the present invention;

[0019] Figure 3This is a top view of the seed-carrying mechanism of the present invention;

[0020] Figure 4 This is a left view of the seed-carrying mechanism of the present invention;

[0021] Figure 5 for Figure 4 AA section view in the middle;

[0022] Figure 6 A 3D view of the inoculation box;

[0023] Figure 7 Top view of the inoculation box;

[0024] Figure 8 A 3D view of the road cover plate;

[0025] Figure 9 A three-dimensional diagram of the seed tunnel shell;

[0026] Figure 10 This is a three-dimensional diagram of the seed-carrying mechanism of the present invention applied to an air-suction roller-type seeder;

[0027] Figure 11 A diagram showing the movement trajectory of the seed within the seed-carrying mechanism of this invention;

[0028] In the diagram: 1. Seed channel shell, 11. Shell side plate, 12. Shell enclosure plate, 13. Inoculation box baffle, 14. Shell mounting plate, 15. Seed discharge port, 16. Slide, 2. Seed channel cover plate, 21. Cover plate side plate, 22. Side channel plate, 23. Cover plate mounting plate, 24. Side channel inlet, 25. Side channel outlet, 3. Inoculation box, 31. Inoculation box boss, 32. Window, 33. Sloping curved surface, 4. Waist belt, 5. Seed. Detailed Implementation

[0029] like Figures 1 to 11 As shown, the seed-carrying mechanism of the present invention includes a seed channel shell 1, a seed channel cover plate 2, and an inoculation box 3. The seed-carrying mechanism and seed-carrying method of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 10 As shown, the single-channel seed-carrying mechanism of the air-suction roller-type seeder of the present invention includes a seed channel housing 1, a seed channel cover plate 2, and an inoculation box 3. The seed channel housing 1 and the seed channel cover plate 2 are fixed in contact, and their lower parts form a quadrilateral seed channel space, as shown. Figure 5 As shown, the seed channel space is fan-shaped. The upper parts of the seed channel shell 1 and the seed channel cover 2 enclose a placement space, which is larger at the top and smaller at the bottom. The inoculation box 3 is located within this placement space. Specifically, as shown... Figure 3 , Figure 6 and Figure 7As shown, the inoculation box 3 is roughly rectangular in shape, with an open top and one open side. The open top is used to receive falling seeds. The interior of the inoculation box 3 has an inclined plate with an upper surface 33. The side wall of the inoculation box 3 has a window 32 that connects to the low point of the inclined surface 33. The top of the inoculation box 3 has a pair of inoculation box bosses 31, which facilitate the assembly of the inoculation box 3 with the seed channel housing 1 and the seed channel cover plate 2.

[0031] like Figure 9 As shown, the seed channel housing 1 includes a housing side plate 11 and a housing enclosure plate 12. One side of the housing enclosure plate 12 is fixed in contact with the housing side plate 11, as shown in the figure. Figure 1 , Figure 2 As shown, the other side of the housing enclosure 12 is used to contact and fix with the seed channel cover 2. The seed channel cover 2 includes a cover side plate 21 and a side channel plate 22. One side of the cover side plate 21 contacts and is fixed with the other side of the housing enclosure 12. The side channel plate 22 is fixed to the other side of the cover side plate 21 and protrudes outward, forming a side channel between the two. One end of the side channel is a side channel inlet 24 communicating with the window 32, and the other end of the side channel is a side channel outlet 25 communicating with the seed channel space. Figure 8 As shown, both the side passage entrance 24 and the side passage exit 25 are parallelogram structures. Figure 9 As shown, a seed outlet 15 is formed between the two ends of the shell enclosure 12, and the seed outlet 15 is connected to the seed channel space. The seed channel space is enclosed by the shell side plate 11, the shell enclosure 12, and the cover plate side plate 21.

[0032] like Figure 1 , Figure 2 and Figure 9 As shown, both the top of the shell side plate 11 and the cover side plate 21 have slides 16, and the inoculation box protrusion 31 extends into the slide 16 and is slidably connected to the slide 16. During installation, the inoculation box 3 is placed in the placement space, with the inoculation box protrusion 31 extending into the slide 16. The inoculation box 3 is pushed along the direction of the slide 16 until it slides to the designated position, and then the inoculation box 3 is fixed to the shell side plate 11.

[0033] like Figure 5 , Figure 9 As shown, the top of the shell enclosure 12 has a "7"-shaped inoculation box baffle 13. After the side wall of the inoculation box 3 comes into contact with the inoculation box baffle 13, the inoculation box 3 is limited, indicating that the inoculation box 3 has slid into place.

[0034] For ease of installation, such as Figure 4 As shown, the housing side plate 11 has a housing mounting plate 14, which is used to fix the housing side plate 11 in place. Figure 2 , Figure 4As shown, the cover plate side plate 21 has a cover plate mounting plate 23, which is used to fix the cover plate side plate 21.

[0035] This invention uses a seed channel shell 1 and a seed channel cover plate 2 to form a seed channel space. The thickness of the seed channel space is greater than or equal to 28 mm (i.e., the width of the shell cover plate 12 is greater than or equal to 28 mm). The thickness of the seed channel space is greater than the length of the peanut seed, thus meeting the movement requirements of the peanut seed. When the seed channel shell 1 rotates, the seed located in the seed channel space can move along the edge of the seed channel space (rolling and / or sliding), that is, move along the inner wall of the shell cover plate 12. A side channel is formed by the cover plate side plate 21 and the side channel plate 22. One end of the side channel is a side channel inlet 24, which communicates with a window 32, so that the seed can enter the side channel inlet 24 through the window 32 and then enter the side channel; the other end of the side channel is a side channel outlet 25, which communicates with the seed channel space, so that the seed can be put into the seed channel space. Figure 10 As shown, during installation, the seed channel housing 1 and seed channel cover 2 are evenly installed circumferentially on the belt 4 of the seeder, with the inoculation box 3 positioned close to the center of the belt 4. Figure 11 As shown, after seeds 5 are placed on the inoculation box 3, they fall directly onto the inclined surface 33. As the seed channel shell 1 rotates, the seeds move from a high position to a low position along the inclined surface 33, eventually passing through the window 32 and the side channel entrance 24 into the side channel. After moving within the side channel for a period of time, they enter the seed channel space through the side channel exit 25 and fall to the bottom of the seed channel space, i.e., onto the shell enclosure 12, under their own weight. As the seed channel shell 1 rotates, as... Figure 11 As shown, the seeds move along the inner wall of the shell enclosure 12 and eventually exit the seed channel space from the seed outlet 15.

[0036] This invention also provides a single-channel seed-carrying method for an air-suction roller-type seeder, comprising the following steps:

[0037] S1. Place seeds into inoculation box 3 when it is at the lowest point;

[0038] S2, the seed moves along the inclined surface 33 and enters the side passage entrance 24 through the window 32;

[0039] S3. The seeds then move within the side channel and fall into the seed channel space through the side channel outlet 25.

[0040] S4. As the seed channel shell 1 rotates, the seeds move along the inner wall of the shell enclosure 12 and eventually exit the seed channel space through the seed outlet 15.

[0041] This invention utilizes a seed channel shell and a seed channel cover to create a side channel and a seed channel space. Seeds enter the side channel from the inoculation box, move along the side channel, and then enter the seed channel space. Subsequently, as the seeper rotates, the seeds move along the inner wall of the seed channel space and are finally removed through the seed outlet to achieve sowing. The seeds move unidirectionally within both the side channel and the seed channel space, eliminating any backtracking, and the large space ensures smooth seed discharge.

Claims

1. A single-channel seed-carrying mechanism for a pneumatic roller-type seed planter, characterized in that: The device includes a seed channel shell, a seed channel cover, and an inoculation box. The seed channel shell and the seed channel cover are in contact and fixed, and their lower parts enclose a quadrilateral seed channel space. The upper parts of the seed channel shell and the seed channel cover enclose a placement space. The inoculation box is located in the placement space. The top of the inoculation box is open to receive falling seeds. The interior of the inoculation box has a sloping curved surface. The side wall of the inoculation box has a window that connects to the lowest point of the sloping curved surface. The seed channel cover has a side channel. One end of the side channel is a side channel entrance that communicates with the window. The other end of the side channel is a side channel outlet that communicates with the seed channel space. The seed channel shell has a seed discharge port that communicates with the seed channel space. The seed channel shell includes a shell side plate and a shell enclosure plate. One side of the shell enclosure plate is fixed in contact with the shell side plate, and the other side of the shell enclosure plate is fixed in contact with the seed channel cover plate. A seed discharge port is formed between the two ends of the shell enclosure plate. The seed channel cover plate includes a cover plate side plate and a side channel plate. One side of the cover plate side plate is fixed in contact with the other side of the shell enclosure plate, and the side channel plate is fixed to the other side of the cover plate side plate and protrudes outward, forming a side channel between the two.

2. The single-channel seed-carrying mechanism of the air-suction roller-type seed planter according to claim 1, characterized in that, The top of the inoculation box has an inoculation box boss, and the top of the shell side plate and the cover side plate has a slide rail, and the inoculation box boss is slidably connected to the slide rail.

3. The single-channel seed-carrying mechanism of the air-suction roller-type seed planter according to claim 2, characterized in that, The top of the shell enclosure has an inoculation box baffle, and the side wall of the inoculation box contacts the inoculation box baffle to limit the position of the inoculation box.

4. The single-channel seed-carrying mechanism of the air-suction roller-type seed planter according to claim 3, characterized in that, The side panel of the housing has a housing mounting plate, which is used to fix the side panel of the housing in place.

5. The single-channel seed-carrying mechanism of the air-suction roller-type seed planter according to claim 4, characterized in that, The cover plate side panel has a cover plate mounting plate, which is used to fix the cover plate side panel in place.

6. The seed-carrying method of the single-channel seed-carrying mechanism of the air-suction roller-type seeder according to claim 5, characterized in that, Includes the following steps: S1. Place the seeds into the inoculation box when it is at the lowest point; S2. The seed moves along the inclined curved surface and enters the side passage entrance through the window; S3. The seeds then move within the side channel and fall into the seed channel space through the side channel exit. S4. As the seed channel shell rotates, the seeds move along the inner wall of the shell and eventually exit the seed channel space through the seed outlet.