Line-spacing-adjustable drought alkali wheat directional seeding device

By designing an adjustable row spacing sowing device, and utilizing a combination of a power connection shaft and a threaded rod sprocket, multi-row sowing and row spacing adjustment of drought-resistant wheat were achieved. This solved the problem of the small single-operation range of existing devices, improved operating efficiency, and reduced costs.

CN224192468UActive Publication Date: 2026-05-05HEBEI AGRICULTURAL UNIV. +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI AGRICULTURAL UNIV.
Filing Date
2025-04-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing seeding devices, when used for large-scale mechanized planting of crops such as drought-resistant wheat, have a small coverage area per operation and require multiple round trips, resulting in increased time and energy costs and failing to meet the needs of efficient planting in modern agriculture.

Method used

An adjustable row spacing directional sowing device for drought-resistant alkaline wheat was designed. Through the combination of a power connecting shaft, a transmission shaft, a threaded rod, and a sprocket, the device enables batch multi-row sowing in the seed box and allows for rapid adjustment of the row spacing to ensure that the seed row spacing is uniform.

Benefits of technology

While enabling multi-row sowing, the spacing between sowing boxes can be quickly adjusted, improving work efficiency and reducing time and energy costs.

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Abstract

The utility model relates to a saline wheat directional seeding device capable of adjusting row spacing, which belongs to the technical field of seeding devices and comprises a seeding machine support and a power connecting shaft mounting box which are mounted on an agricultural machine, the power connecting shaft mounting box is fixedly arranged on the seeding machine support, a power input shaft is arranged at the side end of the power connecting shaft mounting box, and the seeding machine support is fixedly connected with the seeding machine support. A sowing mechanism is arranged at the side end of the sowing machine support, a furrow plough is fixedly arranged at the side end of the sowing mechanism, a landfill mechanism is arranged at the tail of the sowing machine support, the sowing mechanism comprises a transmission shaft rotationally connected to the sowing machine support, and the output end of the power connecting shaft mounting box is fixedly connected with the transmission shaft. The seeder support is connected with the agricultural machine, and the power input shaft is connected with the power output shaft of the agricultural machine, so that the seeding boxes can be driven to perform batch multi-row seeding, the row spacing can be quickly adjusted, the spacing of the seeding boxes after adjustment is the same, and the row spacing between seeds is the same.
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Description

Technical Field

[0001] This utility model relates to the field of sowing device technology, and specifically to an adjustable row spacing directional sowing device for drought-resistant and alkaline wheat. Background Technology

[0002] Seeding devices are planting machines that use crop seeds as the object of sowing. Seeders used for a certain type or type of crop are often named after the crop type, such as grain strip seeders, corn hill seeders, cotton seeders, and hay spreaders. They are crucial in actual agricultural production and can greatly improve sowing efficiency.

[0003] According to the public announcement (CN217183822U), a peanut planting device with adjustable row spacing is disclosed. This technology discloses "a technical solution including a peanut planting device with adjustable row spacing, which has the technical effect of adjusting the arrangement of various parts in the adjustment mechanism, controlling the rotation direction of the threaded rod by shaking the rocker arm, driving the fixed frame and storage box on both sides to move in opposite directions, adjusting the distance between the storage boxes on both sides, thereby facilitating the rapid adjustment of the peanut planting row spacing according to planting needs, and improving the practicality of the planting device."

[0004] However, in the aforementioned comparative document, the device is limited by its adjustment method of driving the two storage boxes to move in opposite directions through a single-sided threaded rod. This means that the device can only adjust the distance between the two sets of storage boxes, resulting in only two rows of sowing being completed at a time in actual operation. In large-scale mechanized planting scenarios for crops such as drought-resistant wheat, multiple rows of sowing need to be carried out simultaneously to improve operational efficiency. The technical solution in this comparative document has the problem of small coverage area per operation and high frequency of round-trip operations due to the limited number of sowing rows, which leads to a significant increase in time and energy costs and cannot meet the actual needs of efficient planting in modern agriculture.

[0005] To address the aforementioned issues, this application proposes an adjustable row spacing directional sowing device for drought-resistant wheat. Utility Model Content

[0006] This invention addresses the technical problems existing in the prior art by providing an adjustable row spacing directional sowing device for drought-resistant and alkaline wheat.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An adjustable row spacing directional sowing device for drought-resistant and alkaline wheat includes a sowing machine bracket and a power connection shaft mounting box installed on an agricultural machine. The power connection shaft mounting box is fixed on the sowing machine bracket. A power input shaft is provided on the side end of the power connection shaft mounting box. A sowing mechanism is provided on the side end of the sowing mechanism. A furrowing plow is fixed on the side end of the sowing mechanism. A burying mechanism is provided at the tail end of the sowing machine bracket.

[0008] The sowing mechanism includes a drive shaft rotatably connected to the seeder bracket. The output end of the power connection shaft mounting box is fixedly connected to the drive shaft. A drive sprocket is fixedly connected to the surface of the drive shaft. A chain meshes with the surface of the drive sprocket. A driven sprocket meshes with the surface of the chain. By setting up the mechanism, the power connection shaft mounting box can drive the drive shaft to rotate, thereby driving the driven sprocket to rotate.

[0009] The seeder bracket has a movable shaft fixedly connected inside. The surface of the movable shaft is rotatably connected to a first threaded rod and a second threaded rod. The first threaded rod and the second threaded rod are fixedly connected to a driven sprocket. The pitch of the second threaded rod is twice that of the first threaded rod. This arrangement allows the first threaded rod and the second threaded rod to rotate on the surface of the movable shaft under the constraint of the driven sprocket.

[0010] The seeder bracket has a fixed internal connection to a constraint rod, and a plurality of seed boxes are slidably connected to the surface of the constraint rod. A furrowing plow is fixedly connected to the side end of each seed box. The first threaded rod and the second threaded rod are respectively threadedly connected to the seed box. By setting it up, the seed box can slide on the constraint rod, and the first threaded rod and the second threaded rod rotate simultaneously. The distance the seed box moves on the second threaded rod is twice the distance it moves on the first threaded rod, so that the distance between the seed boxes remains equal while they are moving.

[0011] The burial mechanism includes a constraint tube fixed to the side of the seeding box. A moving rod is slidably connected inside the constraint tube, and a spring is fixedly connected inside the constraint tube. A baffle is fixedly connected to the surface of the moving rod, and the side end of the spring is fixedly connected to the baffle. Lifting platforms are fixedly provided on the surfaces of the moving rod and the constraint rod, respectively. A lifting rod is threadedly connected inside the lifting platform, and a guide rod is slidably connected inside the lifting platform. A bulldozer plate is rotatably connected to the bottom end of the lifting rod, and the bottom end of the guide rod is fixedly connected to the bulldozer plate. By this design, the bulldozer plate can always be in the middle of the two seeding boxes while the row spacing of the seeding box changes, and its height can be adjusted according to the actual digging depth and soil conditions, thereby more smoothly pushing the soil into the trench to bury the seeds.

[0012] The beneficial effects of this utility model are: the seeder bracket is connected to the agricultural machine, and the power input shaft is connected to the power output shaft of the agricultural machine, thereby driving the seeder box to not only sow in batches and multiple rows, but also to quickly adjust the row spacing, and the spacing between the seeder boxes is the same after adjustment, so that the row spacing between seeds is the same.

[0013] The bulldozer can always be positioned in the middle of the two seed boxes while the row spacing of the seed box is changed, and its height can be adjusted according to the actual digging depth and soil conditions, so that the soil can be pushed into the trench more smoothly to bury the seeds. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the seeding box and its related three-dimensional structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the bulldozer blade and its related three-dimensional structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the constraint tube and its related three-dimensional structure of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Seeder bracket; 2. Power connection shaft mounting box; 3. Power input shaft;

[0020] 4. Seeding mechanism; 401. Drive shaft; 402. Drive sprocket; 403. Chain; 404. Driven sprocket; 405. Moving shaft; 406. First threaded rod; 407. Second threaded rod; 408. Constraint rod; 409. Seeding box; 5. Furrowing plow;

[0021] 6. Landfill mechanism; 601. Constraint tube; 602. Moving rod; 603. Spring; 604. Baffle; 605. Lifting platform; 606. Lifting rod; 607. Guide rod; 608. Bulldozer blade. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0025] Reference Figure 1 - Figure 4 An adjustable row spacing directional sowing device for drought-resistant and alkaline wheat includes a seeder bracket 1 and a power connection shaft mounting box 2 mounted on an agricultural machine. The power connection shaft mounting box 2 is fixed on the seeder bracket 1. A power input shaft 3 is provided on the side end of the power connection shaft mounting box 2. A sowing mechanism 4 is provided on the side end of the seeder bracket 1. A furrowing plow 5 is fixed on the side end of the sowing mechanism 4. A burying mechanism 6 is provided at the tail end of the seeder bracket 1. The seeder bracket 1 is connected to the agricultural machine, and the power input shaft 3 is connected to the power output shaft of the agricultural machine, thereby driving the sowing box 409 to not only sow multiple rows in batches, but also quickly adjust the row spacing. After adjustment, the spacing of the sowing boxes 409 is the same, so that the row spacing between seeds is the same.

[0026] Reference 1- Figure 2 The sowing mechanism 4 includes a drive shaft 401 rotatably connected to the seeder bracket 1. The output end of the power connection shaft mounting box 2 is fixedly connected to the drive shaft 401. A drive sprocket 402 is fixedly connected to the surface of the drive shaft 401. A chain 403 is meshed on the surface of the drive sprocket 402. The drive sprocket 402 and the chain 403 are compatible. A driven sprocket 404 is meshed on the surface of the chain 403. The chain 403 and the driven sprocket 404 are compatible. The power connection shaft mounting box 2 drives the drive shaft 401 to rotate, which in turn drives the drive sprocket 402 to rotate, and then drives the driven sprocket 404 to rotate through the chain 403.

[0027] Reference Figure 1 - Figure 2The seeder bracket 1 has a fixed internal connection to a movable shaft 405. The surface of the movable shaft 405 is rotatably connected to a first threaded rod 406 and a second threaded rod 407. The outer circumference of the movable shaft 405 is equal to the inner circumference of the first threaded rod 406 and the second threaded rod 407. The first threaded rod 406 and the second threaded rod 407 are fixedly connected to a driven sprocket 404. The pitch of the second threaded rod 407 is twice that of the first threaded rod 406, so that the first threaded rod 406 and the second threaded rod 407 can rotate on the surface of the movable shaft 405 under the constraint of the driven sprocket 404.

[0028] Reference Figure 1 - Figure 2 The seeder bracket 1 has a fixed internal connection to a constraint rod 408. Several seed boxes 409 are slidably connected to the surface of the constraint rod 408. The outer circumference of the constraint rod 408 is equal to the inner circumference of the seed box 409 at this location. A furrowing plow 5 is fixedly connected to the side end of the seed box 409. A first threaded rod 406 and a second threaded rod 407 are threadedly connected to the seed box 409 respectively. The inner walls of the first threaded rod 406 and the second threaded rod 407 are adapted to the inner walls of the corresponding seed boxes 409 at this location, so that the seed boxes 409 can slide on the constraint rod 408. The first threaded rod 406 and the second threaded rod 407 rotate simultaneously. The distance that the seed box 409 moves on the second threaded rod 407 is twice the distance that it moves on the first threaded rod 406, so that the distance between the seed boxes 409 remains equal while they are moving.

[0029] Reference Figure 1 - Figure 4The landfill mechanism 6 includes a constraint tube 601 fixed to the side end of the seed box 409. A moving rod 602 is slidably connected inside the constraint tube 601, with the inner circumference of the constraint tube 601 equal to the outer circumference of the moving rod 602. A spring 603 is fixedly connected inside the constraint tube 601. A baffle 604 is fixedly connected to the surface of the moving rod 602, with the side end of the spring 603 fixedly connected to the baffle 604. Lifting platforms 605 are fixedly mounted on the surfaces of the moving rod 602 and the constraint rod 408, respectively. A lifting rod 606 is threadedly connected inside the lifting platform 605, with the inner wall of the lifting platform 605 matching the outer wall of the lifting rod 606. A guide rod 607 is slidably connected inside the lifting platform 605, with the outer circumference of the lifting platform 605 equal to the inner circumference of the guide rod 607. A bulldozer plate 608 is rotatably connected to the bottom end of the lifting rod 606. The bottom end of the guide rod 607 is fixedly connected to the bulldozer plate 608. When the constraint rod 408 moves, it drives the constraint tube 601 to move. When the constraint tubes 601 at both ends of the moving rod 602 move, the moving rod 602 is constrained by the same type of spring 603, so that the moving rod 602 always stays in the middle position of the two constraint rods 408. This makes it convenient for the bulldozer plate 608 to accurately push the soil into the trench dug by the furrowing plow 5 to cover the seeds. Moreover, by rotating the lifting rod 606, the height of the bulldozer plate 608 can be adjusted according to the actual amount of soil to be filled and the soil hardness, so as to meet the needs of filling soil and covering seeds. This allows the bulldozer plate 608 to always be in the middle of the two seeding boxes 409 while the row spacing of the seeding box 409 changes. The height can be adjusted according to the actual digging depth and soil conditions, so that the soil can be pushed into the trench more smoothly to bury the seeds.

[0030] Working principle:

[0031] This adjustable row spacing directional sowing device for drought-resistant wheat has a seeder bracket 1 connected to an agricultural machine, a power input shaft 3 connected to the power output shaft of the agricultural machine, and a power connection shaft mounting box 2 driving the transmission shaft 401 to rotate, which in turn drives the drive sprocket 402 to rotate, and then drives the driven sprocket 404 to rotate via the chain 403. This allows the first threaded rod 406 and the second threaded rod 407 to rotate on the surface of the moving shaft 405 under the constraint of the driven sprocket 404. The sowing box 409 can slide on the constraint rod 408, and the first threaded rod 406 and the second threaded rod 407 rotate simultaneously. The distance that the sowing box 409 moves on the second threaded rod 407 is twice the distance that it moves on the first threaded rod 406, so that the distance between the sowing boxes 409 remains equal while they move. This allows the sowing box 409 to not only sow multiple rows in batches, but also to quickly adjust the row spacing, and the spacing between the sowing boxes 409 is the same after adjustment, so that the row spacing between the seeds is the same.

[0032] This adjustable row spacing directional sowing device for drought-resistant wheat has a constraint rod 408 that moves, causing the constraint tube 601 to move. The constraint tubes 601 at both ends of the moving rod 602 are constrained by springs 603 of the same type, ensuring the moving rod 602 remains in the middle position between the two constraint rods 408. This allows the bulldozer plate 608 to accurately push soil into the trench dug by the furrowing plow 5 to cover the seeds. Furthermore, rotating the lifting rod 606 allows adjustment of the height of the bulldozer plate 608 based on the actual amount of soil filled and soil hardness, thus meeting the needs of filling and covering the seeds. This ensures that the bulldozer plate 608 remains in the middle of the two sowing boxes 409 while the row spacing of the sowing box 409 changes. The height can be adjusted according to the actual digging depth and soil conditions, allowing for smoother soil pushing into the trench.

[0033] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A directional sowing device for drought-resistant and alkali-tolerant wheat with adjustable row spacing, characterized in that, The device includes a seeder bracket (1) and a power connection shaft mounting box (2) installed on an agricultural machine. The power connection shaft mounting box (2) is fixed on the seeder bracket (1). A power input shaft (3) is provided on the side end of the power connection shaft mounting box (2). A sowing mechanism (4) is provided on the side end of the seeder bracket (1). A furrowing plow (5) is fixed on the side end of the sowing mechanism (4). A burying mechanism (6) is provided at the tail end of the seeder bracket (1).

2. The adjustable row spacing directional sowing device for drought-resistant and alkali-tolerant wheat according to claim 1, characterized in that, The sowing mechanism (4) includes a drive shaft (401) rotatably connected to the seeder bracket (1), the output end of the power connection shaft mounting box (2) is fixedly connected to the drive shaft (401), a drive sprocket (402) is fixedly connected to the surface of the drive shaft (401), a chain (403) is meshed on the surface of the drive sprocket (402), and a driven sprocket (404) is meshed on the surface of the chain (403).

3. The adjustable row spacing directional sowing device for drought-resistant and alkali-tolerant wheat according to claim 2, characterized in that, The planter bracket (1) is internally fixedly connected to a movable shaft (405). The surface of the movable shaft (405) is rotatably connected to a first threaded rod (406) and a second threaded rod (407). The first threaded rod (406) and the second threaded rod (407) are respectively fixedly connected to a driven sprocket (404). The pitch of the second threaded rod (407) is twice that of the first threaded rod (406).

4. The adjustable row spacing directional sowing device for drought-resistant and alkali-tolerant wheat according to claim 3, characterized in that, The planter bracket (1) is internally fixedly connected to a constraint rod (408), and a plurality of seed boxes (409) are slidably connected to the surface of the constraint rod (408).

5. The adjustable row spacing directional sowing device for drought-resistant and alkali-tolerant wheat according to claim 4, characterized in that, The side end of the seed box (409) is fixedly connected to a furrowing plow (5), and the first threaded rod (406) and the second threaded rod (407) are respectively threadedly connected to the seed box (409).

6. The adjustable row spacing directional sowing device for drought-resistant and alkali-tolerant wheat according to claim 1, characterized in that, The landfill mechanism (6) includes a constraint tube (601) fixed on the side of the seed box (409), a moving rod (602) slidably connected inside the constraint tube (601), a spring (603) fixedly connected inside the constraint tube (601), a baffle (604) fixedly connected to the surface of the moving rod (602), and the side end of the spring (603) fixedly connected to the baffle (604).

7. The adjustable row spacing directional sowing device for drought-resistant and alkali-tolerant wheat according to claim 6, characterized in that, The surfaces of the moving rod (602) and the constraint rod (408) are respectively fixed with lifting platforms (605). The lifting platform (605) is internally threaded with a lifting rod (606). The lifting platform (605) is internally slidably connected with a guide rod (607). The bottom end of the lifting rod (606) is rotatably connected with a bulldozer plate (608). The bottom end of the guide rod (607) is fixedly connected to the bulldozer plate (608).

Citation Information

Patent Citations

  • Peanut seeding device with adjustable row spacing

    CN217183822U