Depth-adjustable seeder
By using a motor-driven rotating rod and a half-gear system, combined with a vibration assembly of a cylinder and a push rod, the problem of low adjustment accuracy in existing depth-adjustable seeders has been solved. This enables automatic adjustment of the seeder's furrow depth and cleaning of the guide plate, thereby improving seeding efficiency and accuracy.
Patent Information
- Application Number
- CN202423156031.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing depth-adjustable seeders use a simple screw and nut adjustment method, which results in low adjustment accuracy and cumbersome operation, making it difficult to achieve precise adjustment of furrow depth and failing to meet the needs of precision seeding.
The system employs a motor-driven rotating rod and a half-gear system, combined with a vibration assembly of a cylinder and a push rod, to achieve automatic depth adjustment of the seeder. The cylinder drives the push rod to clean residual seeds on the guide plate, ensuring uniform seed sowing.
It enables automatic adjustment of the furrow depth of the seeder, improving sowing efficiency and quality, reducing the labor intensity and errors of manual adjustment, and keeping the guide plate clean to ensure smooth seed flow, thereby improving the accuracy and uniformity of sowing.
Smart Images
Figure CN223553752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a depth-adjustable seeder. Background Technology
[0002] Precision sowing is an agricultural sowing method that uses advanced technology to precisely control the sowing position, depth, spacing, and quantity of seeds. Depth adjustment is necessary because different crops have different sowing depth requirements, and soil conditions and climate factors also affect seed germination and growth; a suitable sowing depth provides a favorable growing environment for the seeds. A seeder is an agricultural machine that sows seeds into the soil, improving sowing efficiency, ensuring sowing quality, reducing labor intensity, and adapting to large-scale production.
[0003] A depth-adjustable seeder consists of a seed box, a seed metering device, a furrow opener, a soil covering device, and a press wheel. The seed box is used to store seeds, and its capacity depends on the scale and efficiency of the seeder's operation. It generally has a large opening for easy seed addition and is also equipped with an observation window and a seed balance monitoring device to monitor the remaining seed quantity in real time. The seed metering device is one of the core components of the seeder, responsible for evenly discharging the seeds from the seed box according to the set seeding rate and spacing. The furrow opener is used to create sowing furrows on the land, and its shape and structure vary, such as moldboard furrow openers and disc furrow openers. The soil covering device covers the seeds on both sides of the furrow after they are sown, protecting the seeds and maintaining soil moisture and temperature. The press wheel is generally located at the rear of the seeder. By pressing the covered soil, it ensures close contact between the seeds and the soil, which is beneficial for the seeds to absorb water and nutrients, while reducing air gaps in the soil and preventing water evaporation and soil compaction.
[0004] In the existing technology, some depth-adjustable seeders use a simple screw and nut adjustment method, which has low adjustment accuracy and is cumbersome to operate. It is difficult to achieve precise adjustment of the furrow depth, thus making it difficult to achieve small and continuous depth adjustment, which cannot meet the needs of precision sowing. This will lead to poor seed germination rate and growth. Therefore, a depth-adjustable seeder is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a depth-adjustable seeder, which aims to improve the problem that the existing technology uses a simple screw and nut adjustment method, which has low adjustment accuracy and is cumbersome to operate, making it difficult to achieve precise adjustment of deep furrows.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A depth-adjustable seeder includes support rods. Motors are fixedly connected to the far sides of two support rods. A rotating rod is fixedly connected to the drive end of each motor. A fixing ring is fixedly connected to the outside of the rotating rod, and a half-gear is fixedly connected to the outside of the fixing ring. Protective covers are fixedly connected to the near sides of the two support rods. A rotating rod is fixedly connected to the front inner wall of the protective cover. A fixing ring is fixedly connected to the outside of the rotating rod, and a half-gear is fixedly connected to the outside of the fixing ring. A rotating plate is fixedly connected to the rear side of the rotating rod. A vibration assembly for cleaning the guide plate is fixedly connected to the top of the support rods.
[0008] As a further description of the above technical solution:
[0009] The vibration assembly includes a first fixed plate, the bottom of which is fixedly connected to the top of the support rod. A second fixed plate is fixedly connected to the rear side of the first fixed plate. A cylinder is fixedly connected to the inner wall of the second fixed plate. A push rod is fixedly connected to the driving end of the cylinder. A grooved plate is fixedly connected to the left side of the push rod. A first movable rod is slidably connected inside the grooved plate. A second movable rod is fixedly connected to the top of the first movable rod.
[0010] As a further description of the above technical solution:
[0011] A connecting plate is fixedly connected to the bottom of the rotating plate, and a trencher is fixedly connected to the bottom of the connecting plate. The far side of the two connecting plates contacts the near side of the protective cover.
[0012] As a further description of the above technical solution:
[0013] The outer side of the rotating rod one is slidably connected to the front side of the inner wall of the protective cover, and the outer side of the half gear two is meshed with the outer side of the rotating plate.
[0014] As a further description of the above technical solution:
[0015] A seed box is fixedly connected to the rear side of the fixed plate one, a guide plate is fixedly connected to the left side of the seed box, a limit plate is fixedly connected inside the guide plate, a horizontal plate is fixedly connected to the top of the moving rod two, and a guide plate is fixedly connected to the outside of the horizontal plate.
[0016] As a further description of the above technical solution:
[0017] A base plate is fixedly connected to the bottom of the second fixing plate. The front and rear sides of the base plate are fixedly connected to the adjacent sides of the two support rods.
[0018] As a further description of the above technical solution:
[0019] The seed box has a slot on its left side, and the top of the horizontal plate is connected to the bottom of the guide plate.
[0020] As a further description of the above technical solution:
[0021] The grooved plate has sliding grooves on both the front and rear sides, and the external part of the moving rod is slidably connected to the inside of the sliding groove.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the motor drives the rotating rod to rotate, which in turn drives the half gear to rotate, which in turn drives the rotating rod to rotate, which in turn drives the rotating plate to rotate, which in turn drives the furrow opener to rotate. This achieves automatic adjustment of the furrow depth of the seeder, and ensures that the seeds are sown at a suitable depth, which is conducive to seed germination and growth. This improves sowing efficiency and quality, and reduces the labor intensity and error of manual adjustment.
[0024] 2. In this invention, the cylinder moves the push rod, which in turn moves the grooved plate, causing the first moving rod to move, which in turn moves the second moving rod up and down, thus moving the horizontal plate, causing the horizontal plate to impact the guide plate. This effectively cleans the guide plate of residual seeds, preventing residual seeds from accumulating and deteriorating on the guide plate, which would affect the quality of the next sowing. This keeps the guide plate clean, ensures smooth seed flow, and improves the accuracy and uniformity of sowing. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a depth-adjustable seeder proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the fixed plate structure of a depth-adjustable seeder proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the rotating plate structure of a depth-adjustable seeder proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the horizontal plate structure of a depth-adjustable seeder proposed in this utility model.
[0029] Legend:
[0030] 1. Support rod; 2. Motor; 3. Rotating rod one; 4. Fixing ring one; 5. Half gear one; 6. Rotating rod two; 7. Fixing ring two; 8. Half gear two; 9. Rotating plate; 10. Furrow opener; 11. Protective cover; 12. Fixing plate one; 13. Fixing plate two; 14. Cylinder; 15. Push rod; 16. Groove plate; 17. Moving rod one; 18. Moving rod two; 19. Horizontal plate; 20. Base plate; 21. Guide plate; 22. Flow guide plate; 23. Seed box. Detailed Implementation
[0031] 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.
[0032] Reference Figure 2 and Figure 3 This utility model provides an embodiment of a depth-adjustable seeder, including a support rod 1. The support rod 1 is an important support structure of the entire seeder, providing a stable installation foundation and support point for other components. This ensures that the seeder can maintain a stable structural shape during operation, preventing deformation or tilting due to the movement of various components and external forces generated during operation, thereby ensuring the normal progress of the sowing operation. A motor 2 is fixedly connected to the far side of each of the two support rods 1. The motor 2 converts electrical energy into mechanical energy to provide power for the depth adjustment mechanism of the seeder. A rotating rod 3 is fixedly connected to the drive end of the motor 2. The rotating rod 3 transmits the rotational power generated by the motor 2 to a fixed ring 4 and a half gear 5, driving the fixed ring 4 and the half gear 5 to rotate. A fixed ring 4 is fixedly connected to the outside of the rotating rod 3. The fixed ring 4 connects the rotating rod 3 and the half gear 5, so that the half gear 5 can rotate synchronously with the rotation of the rotating rod 3, ensuring stable power transmission and normal operation of the half gear 5.
[0033] A half-gear 5 is fixedly connected to the outside of the fixed ring 4. The half-gear 5 is fixed to the fixed ring 4 and rotates with the rotation rod 3. Protective covers 11 are fixedly connected to the adjacent sides of the two support rods 1. The protective covers 11 are used to protect the internal rotating rod 6, fixed ring 7, half-gear 8 and other components from external dust, dirt, moisture and other impurities from corrosion and damage. They also prevent operators from accidentally touching these moving parts during operation and causing danger, extend the service life of the components and improve the safety of operation. The rotating rod 6 is fixedly connected to the front of the inner wall of the protective cover 11. The rotating rod 6 is used to rotate the half-gear 6. The intermittent rotational power transmitted from the second gear 8 is further transmitted to the rotating plate 9, realizing the conversion and transmission of power, so that the rotating plate 9 can rotate according to a predetermined pattern. A fixing ring 7 is fixedly connected to the outside of the rotating rod 26. The fixing ring 7 ensures that the half gear 28 can be stably installed on the rotating rod 26 and rotates synchronously with the rotation of the rotating rod 26. The half gear 28 is fixedly connected to the outside of the fixing ring 27. The half gear 28 receives the power transmitted from the half gear 15 and transmits it to the rotating rod 26. The rotating plate 9 is fixedly connected to the rear side of the rotating rod 26. The rotating plate 9 is a key component directly involved in adjusting the sowing depth. When the rotating rod 26 rotates intermittently under the drive of the half gear 28, the rotating plate 9 will rotate accordingly. Through the linkage with other components, the position or angle of the seeder furrow opener 10 or sowing device is changed. A vibration assembly for cleaning the inclined plate is fixedly connected to the top of the support rod 1.
[0034] Reference Figure 2 and Figure 4The vibration assembly includes a fixing plate 12, which is used to fix the seed box 23 to prevent it from shaking. The bottom of the fixing plate 12 is fixedly connected to the top of the support rod 1. A fixing plate 13 is fixedly connected to the rear side of the fixing plate 12. The fixing plate 13 is used to fix the cylinder 14. The fixing plate 13 serves to securely install the cylinder 14 in the vibration assembly. The cylinder 14 is fixedly connected to the inner wall of the fixing plate 13. The cylinder 14 is the power source of the vibration assembly. The cylinder 14 converts the energy of compressed air into mechanical energy through changes in internal gas pressure, driving its drive end to perform reciprocating linear motion. A push rod 15 is fixedly connected to the drive end of the cylinder 14. The push rod 15 transmits the reciprocating linear motion generated by the cylinder 14 to the grooved plate 16, thereby driving the grooved plate 16 to move. A grooved plate 16 is fixedly connected to the left side. The grooved plate 16 receives the power transmitted from the push rod 15 and provides a sliding track for the first moving rod 17 inside it. The first moving rod 17 is slidably connected inside the grooved plate 16. The first moving rod 17 further transmits the vibration transmitted from the grooved plate 16 upward to the second moving rod 18. The top of the first moving rod 17 is fixedly connected to the second moving rod 18. The second moving rod 18 receives the force of the second moving rod 18 and moves up and down, thereby driving the horizontal plate 19 to move up and down.
[0035] Reference Figures 1 to 3 A connecting plate is fixedly connected to the bottom of the rotating plate 9. The connecting plate connects the rotating plate 9 and the trencher 10, enabling force transmission. The trencher 10 is fixedly connected to the bottom of the connecting plate. The trencher 10 is the component that directly performs trenching. The trencher 10 rotates under the drive of the connecting plate, thereby adjusting its depth. The far side of the two connecting plates contacts the near side of the protective cover 11, ensuring that the connecting plates and connected components will not shake or shift excessively during operation, thus ensuring the accuracy and stability of trenching by the trencher 10. The outer side of the rotating rod 3 is slidably connected to the front side of the inner wall of the protective cover 11 to prevent rotation. During rotation, rod 3 undergoes excessive displacement or swaying to ensure the accuracy and stability of power transmission and to ensure the coordinated work between the various components of the device. The external meshing connection between half gear 8 and rotating plate 9 enables the conversion of a specific speed ratio or motion law, thereby causing rotating plate 9 to rotate at a predetermined speed and direction, which in turn drives furrow opener 10 to perform corresponding actions. Seed box 23 is fixedly connected to the rear side of fixed plate 12. Seed box 23 is used to store seeds and allow seeds to enter furrow opener 10. A guide plate 22 is fixedly connected to the left side of seed box 23. The guide plate 22 guides the seeds to flow out of seed box 23.
[0036] A limiting plate is fixedly connected inside the guide plate 22. The limiting plate restricts and guides the flow of seeds on the guide plate 22, preventing disorderly flow, accumulation, or blockage during the outflow process. This ensures that the seeds flow out of the guide plate 22 evenly at a predetermined speed and direction, thereby guaranteeing the uniformity and accuracy of sowing. A horizontal plate 19 is fixedly connected to the top of the moving rod 18. The horizontal plate 19 moves up and down or left and right under the action of the moving rod 18, thereby striking the guide plate 22. A guide plate 21 is fixedly connected to the outside of the horizontal plate 19. The guide plate 21 guides the moving rod 18, allowing it to move up and down. A base plate 20 is fixedly connected to the bottom of the fixed plate 13. The base plate 20 provides a stable bottom support structure for the entire device, ensuring the device's stability. To ensure stability and reliability during operation, the front and rear sides of the base plate 20 are fixedly connected to the adjacent sides of the two support rods 1. A slot is provided on the left side of the seed box 23 to allow seeds to flow out of the box. The top of the horizontal plate 19 is connected to the bottom of the guide plate 22. Driven by the cylinder 14, the horizontal plate 19 impacts the bottom of the guide plate 22, causing the guide plate 22 to move and shake. The groove plate 16 has sliding grooves on its front and rear sides. The sliding grooves on the groove plate 16 provide a precise sliding track for the moving rod 17. The moving rod 17 can slide linearly in the sliding groove. This sliding connection method can realize the position adjustment and motion control of the moving rod 17 in a specific direction. The external sliding connection of the moving rod 17 is inside the sliding groove.
[0037] Working principle: When the seeder needs to be operated, motor 2 is started. Motor 2 drives rotating rod 3 to rotate, which in turn rotates fixed ring 4, causing half gear 5 to rotate, which in turn rotates half gear 8. This causes fixed ring 7 to rotate rotating rod 6, which in turn causes rotating plate 9 to move accordingly, causing connecting plate to rotate, which in turn causes furrow opener 10 to rotate, thereby adjusting the furrow depth. This achieves automatic furrow depth adjustment of the seeder, ensuring that seeds are sown at an appropriate depth, which is conducive to seed germination and growth. This improves sowing efficiency and quality, and reduces the labor intensity and error of manual adjustment.
[0038] When seeding is nearing completion and seeds remain on guide plate 21, cylinder 14 is activated. Cylinder 14 moves push rod 15, which in turn moves groove plate 16. The grooves inside groove plate 16 move moving rod 17, which in turn moves moving rod 18 up and down. This causes horizontal plate 19 to impact guide plate 22, dislodging the remaining seeds. This process cleans the inclined plate and prevents residual seeds from accumulating and deteriorating on it, affecting the quality of subsequent sowing. It keeps the inclined plate clean, ensures smooth seed flow, and improves the accuracy and uniformity of sowing.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A depth-adjustable seeder, comprising a support rod (1), characterized in that: A motor (2) is fixedly connected to the far side of each of the two support rods (1). A rotating rod (3) is fixedly connected to the drive end of the motor (2). A fixing ring (4) is fixedly connected to the outside of the rotating rod (3). A half gear (5) is fixedly connected to the outside of the fixing ring (4). A protective cover (11) is fixedly connected to the close side of each of the two support rods (1). A rotating rod (6) is fixedly connected to the front side of the inner wall of the protective cover (11). A fixing ring (7) is fixedly connected to the outside of the rotating rod (6). A half gear (8) is fixedly connected to the outside of the fixing ring (7). A rotating plate (9) is fixedly connected to the rear side of the rotating rod (6). A vibration assembly for cleaning the guide plate is fixedly connected to the top of the support rod (1).
2. The depth-adjustable seeder according to claim 1, characterized in that: The vibration assembly includes a first fixed plate (12), the bottom of which is fixedly connected to the top of the support rod (1), a second fixed plate (13) is fixedly connected to the rear side of the first fixed plate (12), a cylinder (14) is fixedly connected to the inner wall of the second fixed plate (13), a push rod (15) is fixedly connected to the drive end of the cylinder (14), a grooved plate (16) is fixedly connected to the left side of the push rod (15), a first moving rod (17) is slidably connected inside the grooved plate (16), and a second moving rod (18) is fixedly connected to the top of the first moving rod (17).
3. The depth-adjustable seeder according to claim 1, characterized in that: The bottom of the rotating plate (9) is fixedly connected to two connecting plates, and the bottom of the two connecting plates is fixedly connected to a trencher (10). The far side of the two connecting plates is in contact with the near side of the protective cover (11).
4. The depth-adjustable seeder according to claim 1, characterized in that: The outer side of the rotating rod (3) is slidably connected to the front side of the inner wall of the protective cover (11), and the outer side of the half gear (8) is meshed with the outer side of the rotating plate (9).
5. A depth-adjustable seeder according to claim 2, characterized in that: A seed box (23) is fixedly connected to the rear side of the fixed plate (12), a guide plate (22) is fixedly connected to the left side of the seed box (23), a limit plate is fixedly connected inside the guide plate (22), a horizontal plate (19) is fixedly connected to the top of the moving rod (18), and a guide plate (21) is fixedly connected to the outside of the horizontal plate (19).
6. A depth-adjustable seeder according to claim 2, characterized in that: The bottom of the fixed plate 2 (13) is fixedly connected to the base plate (20), and the front and rear sides of the base plate (20) are fixedly connected to the adjacent side of the two support rods (1).
7. A depth-adjustable seeder according to claim 5, characterized in that: The seed box (23) has a slot on its left side, and the top of the horizontal plate (19) is connected to the bottom of the guide plate (22).
8. A depth-adjustable seeder according to claim 2, characterized in that: The groove plate (16) has sliding grooves on both the front and rear sides, and the external sliding connection of the moving rod (17) is slidably connected to the inside of the sliding groove.