A seeding machine covering and compacting device
By designing a combination of a truncated cone and a cylindrical soil covering wheel and a pressing wheel, the problem of loose ridges is solved, the water storage capacity on the ridges and the quality of seedling emergence are improved, and the integrated operation of soil covering and pressing is realized, which improves the operating efficiency and seedling emergence rate of the seeder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WATER FIELD MECHANIZATION INST HEILONGJIANG PROV
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-16
Smart Images

Figure CN224356668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crop sowing machinery technology, and more specifically to a soil covering and compaction device for a sowing machine. Background Technology
[0002] Crop seeding machinery is an important piece of equipment for realizing the mechanization of agricultural production. It can generally complete the tasks of ditching, sowing, and covering and compacting soil in one operation, thereby improving work efficiency, reducing labor intensity, and saving labor costs.
[0003] Currently, traditional seeders mostly use double covering discs with a single cylindrical pressing roller or double covering rubber wheels with double pressing discs to complete the covering and pressing operation. The large number of working parts and the method of supporting the lateral soil and pressing the soil on top makes the ridge shape easy to loosen, which can easily lead to problems such as unsatisfactory ridge shape and incomplete compaction, affecting the quality and rate of seedling emergence.
[0004] Therefore, how to provide a seeder soil covering and compaction device that can achieve the functions of compacting the sowing line into furrows, improving the water storage capacity of the ridges, and facilitating crop emergence is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the present invention provides a soil covering and compaction device for a seeder, which realizes the function of compacting the sowing line into furrows, improving the water storage capacity of the ridges, and facilitating crop emergence.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A soil covering and compaction device for a seeder, comprising:
[0008] The soil covering mechanism includes a soil covering frame, soil covering connecting plates, soil covering wheels, and soil covering adjustment components. The top and both sides of the soil covering frame are provided with through holes, and each through hole is provided with a fixing sleeve. The soil covering frame is provided with a soil covering limiting block, which is rotatably mounted on the soil covering frame. Two soil covering connecting plates are provided, which are respectively located on both sides of the soil covering frame. The soil covering wheel is rotatably mounted between the two soil covering connecting plates and is located below the soil covering frame. The soil covering adjustment components are mounted on the soil covering frame.
[0009] The compaction mechanism includes a compaction frame, a compaction adjusting rod, compaction connecting plates, and compaction wheels. The compaction frame has a stop hole on its top and coaxial through holes on both sides. The compaction frame is rotatably connected to the cover frame. The compaction frame is located on the side of the cover frame away from the cover wheel. The compaction adjusting rod is movably disposed in the stop hole on the compaction frame and is connected to the cover frame. Two compaction connecting plates are provided, with one end of each plate symmetrically disposed on both sides of the compaction frame. The compaction wheels are rotatably disposed on the other end of each connecting plate away from the compaction frame.
[0010] Furthermore, the soil covering adjustment component includes a threaded rod and an adjustment handle. The threaded rod is disposed in a through hole and a fixing sleeve located above the soil covering frame. The adjustment handle is disposed at the top of the threaded rod. A top block is provided at the end of the threaded rod away from the adjustment handle, and the top block contacts the soil covering limiting block.
[0011] Furthermore, the soil covering limiting block is rotatably mounted on the soil covering frame via a hexagonal shaft.
[0012] Furthermore, the soil covering frame is connected to the compaction adjustment rod via a tension spring.
[0013] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a soil covering and compaction device for a seeder, which adopts a truncated cone-cylinder combination soil covering wheel. By covering the soil and simultaneously shaping and compacting the ridges, it achieves the purpose of good soil compaction and good moisture retention.
[0014] Design a sowing line press wheel that forms a narrow pressing groove directly above the seed to store moisture;
[0015] Compared with existing technologies, it can avoid the problem of traditional soil covering and compaction devices damaging the ridge shape, while adding sowing line furrows to improve the water storage capacity of the ridge and effectively improve the quality of soil covering and compaction. It has the characteristics of novel, reasonable and simple structure, few operation failures, high efficiency and good operation performance.
[0016] The pressure of the covering wheel can be adjusted at any time as needed via the soil covering adjustment component, and the pressure of the compaction wheel can be adjusted at any time as needed via the compaction adjustment rod;
[0017] After the seeder enters the cultivated land and aligns with the ridge, it begins the sowing operation. After the seeds are sown into the soil, the subsequent soil covering and compaction device performs the compaction operation. Utilizing the shape characteristics of the soil covering wheel, which is a combination of a cylindrical and a truncated cone, the soil pushed to both sides during furrowing is concentrated onto the ridge to cover the sown seeds. At the same time, a downward force is applied, and as the machine moves forward, a ridge with a regular shape and appropriate compaction is formed.
[0018] Subsequently, the compaction mechanism's compaction wheel, utilizing its narrow shape, applies downward pressure again, forming a narrower groove above the sowing line, thus completing the soil covering and compaction operation. The soil covering mechanism can refine the ridge shape after sowing, which is beneficial for moisture retention; the grooves created by the compaction mechanism help store irrigation water and rainwater, increasing soil moisture retention and promoting seedling survival and emergence. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0020] Figure 1 This is a front view of the seeder soil covering and compaction device provided by this utility model;
[0021] Figure 2 A side view of the soil covering mechanism provided by this utility model;
[0022] Figure 3 A cross-sectional view of the soil covering mechanism provided by this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the soil covering adjustment component provided by this utility model;
[0024] Figure 5 A schematic diagram of the pressing mechanism provided by this utility model;
[0025] Figure 6 A top view of the pressing mechanism provided by this utility model.
[0026] The components are: 1. Soil covering mechanism; 2. Compacting mechanism; 3. Soil covering frame; 4. Soil covering limit block; 5. Soil covering connecting plate; 6. Soil covering wheel; 7. Soil covering adjustment component; 8. Hexagonal shaft; 9. Adjusting handle; 10. Threaded rod; 11. Top block; 12. Compacting frame; 13. Tension spring; 14. Compacting adjusting rod; 15. Compacting connecting plate; 16. Compacting wheel. Detailed Implementation
[0027] 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.
[0028] See Figure 1-6 This utility model discloses a soil covering and compaction device for a seeder, comprising:
[0029] The soil covering mechanism 1 includes a soil covering frame 3, a soil covering connecting plate 5, a soil covering wheel 6, and a soil covering adjustment component 7. The top and both sides of the soil covering frame 3 are provided with through holes, and each through hole is provided with a fixing sleeve. A soil covering limit block 4 is provided on the soil covering frame 3, and the soil covering limit block 4 is rotatably mounted on the soil covering frame 3. Two soil covering connecting plates 5 are provided, and the two soil covering connecting plates 5 are located on the two sides of the soil covering frame 3 respectively. The soil covering wheel 6 is rotatably mounted between the two soil covering connecting plates 5 and is located below the soil covering frame 3. The soil covering adjustment component 7 is mounted on the soil covering frame 3. The soil covering wheel 6 is a combination of a truncated cone and a cylindrical body. By simultaneously covering the soil and shaping the ridges and compacting them, the purpose of good soil compaction and good moisture retention is achieved.
[0030] The compaction mechanism 2 includes a compaction frame 12, a compaction adjusting rod 14, a compaction connecting plate 15, and a compaction wheel 16. The compaction frame 12 has a stop hole on its top and coaxial through holes on both sides. The compaction frame 12 is rotatably connected to the covering frame 3. The compaction frame 12 is located on the side of the covering frame 3 away from the covering wheel 6. The compaction adjusting rod 14 is movably installed in the stop hole on the compaction frame 12 and is connected to the covering frame 3. Two compaction connecting plates 15 are provided, with one end of each plate 15 symmetrically positioned on both sides of the compaction frame 12. The compaction wheel 16 is rotatably positioned on the other end of each connecting plate 15 away from the compaction frame 12. This mechanism can complete the covering and compaction operation in one operation, offering advantages such as simple structure, convenient operation, good ridge shape, and compaction. It also compacts the seed line into furrows, improving the water storage capacity of the ridges and facilitating crop emergence.
[0031] In this embodiment, the soil covering adjustment component 7 includes a threaded rod 10 and an adjustment handle 14. The threaded rod 10 is disposed in a through hole and a fixing sleeve located above the soil covering frame 3. The adjustment handle 14 is disposed on the top of the threaded rod 10. A top block 11 is provided at the end of the threaded rod 10 away from the adjustment handle 14. The top block 11 is connected to the soil covering limiting block 4. When it is necessary to adjust the downward pressure of the soil covering wheel 6, the adjustment handle 9 on the soil covering adjustment component 7 can be rotated to drive the threaded rod 10 to rotate. Since the threaded rod 10 is restricted above by the soil covering frame 3, it cannot move upward. Therefore, the rotation drives the top block 11 to move along the threaded rod 10. The top block 11 contacts the soil covering limiting block 4. The soil covering limiting block drives the hexagonal shaft 8 to rotate. At the same time, the hexagonal shaft 8 drives the soil covering connecting plates 5 on both sides to rotate, thereby driving the soil covering wheel 6 to make a circular motion around the hexagonal shaft 8 as the center, realizing the kinetic energy to adjust the downward pressure of the soil covering.
[0032] In this embodiment, the soil covering limiting block 4 is rotatably mounted on the soil covering frame 3 via a hexagonal shaft 8.
[0033] In this embodiment, the soil covering frame 3 and the compaction adjustment rod 14 are connected by a tension spring 13.
[0034] Specific usage process
[0035] When in use, the seeder enters the cultivated land and aligns with the ridge to begin sowing. After the seeds are sown into the soil, the subsequent covering mechanism 1 and compaction mechanism 2 carry out compaction. Utilizing the shape characteristics of the covering wheel 6 of the cylindrical-frustum combination of the covering mechanism 1, the soil pushed to both sides during furrowing is concentrated onto the ridge to cover the sown seeds. At the same time, a downward force is applied, and as the covering wheel 6 moves forward, a ridge with a regular shape and appropriate compaction is formed.
[0036] Subsequently, the compaction wheel 16 of the compaction mechanism 2 applies downward pressure again using its narrow shape to form a narrow groove above the seeding line, thus completing the soil covering and compaction operation.
[0037] The soil covering mechanism 1 can adjust the ridge shape after sowing, which is beneficial for moisture retention;
[0038] The trenches opened by the compaction mechanism 2 are conducive to storing irrigation water and rainwater, increasing soil moisture retention, and helping to protect and promote seedling emergence.
[0039] When it is necessary to adjust the downward pressure of the covering wheel 6, the adjusting handle 9 on the covering adjustment component 7 can be rotated to drive the threaded rod 10 to rotate. Since the threaded rod 10 is restricted by the covering frame 3 above, it cannot move upward. Therefore, the rotation drives the top block 11 to move along the threaded rod 10. The top block 11 contacts the covering limit block 4. The covering limit block drives the hexagonal shaft 8 to rotate. At the same time, the hexagonal shaft 8 drives the covering connecting plates 5 on both sides to rotate, thereby driving the covering wheel 6 to make a circular motion around the hexagonal shaft 8 as the center, realizing the kinetic energy to adjust the downward pressure of the covering.
[0040] When it is necessary to adjust the downward pressure of the pressing wheel 16, the position of the pressing adjustment rod 14 in the stop hole above the pressing frame 12 can be adjusted. The tension spring 13 installed on the pressing adjustment rod 14 generates tension, causing the pressing frame 12 to make a circular motion with its connection point with the soil cover frame 3 as the center, thereby driving the pressing wheel 16 to make a circular motion, so as to achieve the purpose of adjusting the pressing downward pressure.
[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A soil covering and compaction device for a seeder, characterized in that, include: The soil covering mechanism includes a soil covering frame, soil covering connecting plates, soil covering wheels, and soil covering adjustment components. The top and both sides of the soil covering frame are provided with through holes, and each through hole is provided with a fixing sleeve. The soil covering frame is provided with a soil covering limiting block, which is rotatably mounted on the soil covering frame. Two soil covering connecting plates are provided, which are respectively located on both sides of the soil covering frame. The soil covering wheel is rotatably mounted between the two soil covering connecting plates and is located below the soil covering frame. The soil covering adjustment components are mounted on the soil covering frame. The compaction mechanism includes a compaction frame, a compaction adjusting rod, compaction connecting plates, and compaction wheels. The compaction frame has a stop hole on its top and coaxial through holes on both sides. The compaction frame is rotatably connected to the cover frame. The compaction frame is located on the side of the cover frame away from the cover wheel. The compaction adjusting rod is movably disposed in the stop hole on the compaction frame and is connected to the cover frame. Two compaction connecting plates are provided, with one end of each plate symmetrically disposed on both sides of the compaction frame. The compaction wheels are rotatably disposed on the other end of each connecting plate away from the compaction frame.
2. The seeder soil covering and compaction device according to claim 1, characterized in that, The soil covering adjustment component includes a threaded rod and an adjustment handle. The threaded rod is disposed in a through hole and a fixing sleeve located above the soil covering frame. The adjustment handle is disposed at the top of the threaded rod. A top block is provided at the end of the threaded rod away from the adjustment handle. The top block is in contact with the soil covering limiting block.
3. The seeder soil covering and compaction device according to claim 1, characterized in that, The soil covering limiting block is rotatably mounted on the soil covering frame via a hexagonal shaft.
4. The seeder soil covering and compaction device according to claim 1, characterized in that, The soil covering frame and the pressing adjustment rod are connected by a tension spring.