Ploughing and soil covering mechanism for seeder

Abstract

The utility model relates to the technical field of seeding machines, in particular to a ploughing and soil covering mechanism for a seeding machine, which comprises a mounting column, a ploughing device and a soil covering device, the ploughing device and the soil covering device are positioned at the lower part of the mounting column, an extension column is arranged at the lower part of the mounting column, and a mounting groove is vertically formed in the side wall of the ploughing device; a plurality of mounting holes are formed in the ploughing device in the length direction of the mounting groove at intervals, and the ploughing device and the extension column are connected after bolts penetrate through the mounting holes and the extension column; a connecting plate is arranged at the lower end of the mounting column, a connecting hole is formed in the connecting plate, a through connecting groove is formed in the soil covering device in the vertical direction, and the soil covering device and the connecting plate are connected after a bolt penetrates through any position of the connecting groove and the connecting hole. The height of the ploughing device and the height of the covering device can be adjusted respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of seed drills, in particular to a plowing and soil covering mechanism for a seed drill. Background Art

[0002] Grasslands are the largest terrestrial ecosystem and the most important green ecological barrier. However, due to various factors, grassland degradation is increasing, the area of ​​degraded grassland is expanding, and the loss of grassland vegetation has formed patchy sandy areas. Further development may lead to the formation of large-scale degraded sandy areas. Therefore, reclamation of small areas of bare grassland is of great significance.

[0003] Since the bare land plots are small and scattered, they are not suitable for large-scale machinery operations. Small grass seed seeders are usually used on grasslands. Such small grass seed seeders usually include a frame, a traveling mechanism, a plowing mechanism and a seeding mechanism. The traveling mechanism includes an engine, a front wheel and a rear wheel. The front wheel and the rear wheel are both rotatably arranged on the frame. The engine is arranged on the frame above the front wheel, wherein the output end of the engine is connected to the axle of the front wheel through a belt and a pulley, so the front wheel serves as a driving wheel and the rear wheel serves as a driven wheel; an armrest is provided on the frame, and the operator controls the direction of travel of the seeder by holding the armrest; the plowing mechanism is located between the front wheel and the rear wheel, and the plowing mechanism includes a plow and a soil covering device, and the plow is located in front of the soil covering device; the seeding mechanism includes a seed storage bin, a seeding wheel and a seeding pipe, and the seed storage bin is arranged on the frame The seeding wheel is arranged at the bottom of the seed storage bin through a rotating shaft, and one end of the seeding pipe is connected with the bottom of the seed storage bin, and one end of the rotating shaft of the seeding wheel passes through the side wall of the seed storage bin and extends to the outside of the seed storage bin, and a sprocket is provided at one end of the rotating shaft of the seeding wheel outside the seed storage bin, and a driving sprocket is provided on the wheel axle of the front wheel, and the sprocket on the rotating shaft of the seeding wheel is connected with the above-mentioned driving sprocket through a chain, and the discharge end of the seeding pipe faces the ground and is located between the plow device and the soil covering device; during the movement of the seeder, the land can be plowed by the plow device, and the seeding wheel can be driven to rotate by the driving sprocket, chain, and sprocket, and the seeding wheel can move the grass seeds inside the seed storage bin, so that the grass seeds pass through the seeding pipe under the seed storage bin to be sown in the groove plowed downwards, and when the seeder continues to move, the grass seeds are covered with soil through the soil covering device.

[0004] The above-mentioned method of controlling the seeding wheel has a defect. When the front wheel slips, the front wheel keeps rotating, and the front wheel will drive the seeding wheel to continue rotating through the chain, causing the seeding wheel to discharge too much grass seeds in situ, which easily leads to waste of grass seeds. People have improved the above-mentioned method of controlling the seeding wheel. Specifically, the driving sprocket is set on the axle of the rear wheel, and the driving sprocket is connected to the sprocket of the seeding wheel through a chain. The second method is to drive the seeding wheel to rotate by the rear wheel. Compared with the first method of controlling the seeding wheel, the latter has an advantage, that is, when the front wheel slips, the rear wheel will stop rotating. At this time, the seeding wheel will also stop rotating synchronously, which can reduce the waste of grass seeds caused by the slipping of the seeder.

[0005] In addition, the planting depths of different types of grass seeds may be different. The heights of the plow and the soil cover of the above-mentioned seeder are not easy to adjust, making it inconvenient to sow grass seeds of different planting depths. Utility Model Content

[0006] The purpose of the utility model is to provide a plowing and covering mechanism for a seed drill, aiming to improve the problem in the prior art that the heights of the plow and the covering are inconvenient to adjust.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A plowing and covering mechanism for a seed drill comprises a mounting post, a plow and a covering located below the mounting post, an extension post being provided below the mounting post, a mounting slot being vertically defined in a sidewall of the plow, a plurality of mounting holes being spaced apart along the length of the mounting slot on the plow, and the plow and the extension post being connected by bolts passing through the mounting holes and the extension post.

[0009] A connecting plate is provided on the side of the lower end of the mounting column away from the plow, a connecting hole is provided on the connecting plate, a connecting groove is provided vertically on the soil covering device, and the soil covering device and the connecting plate are connected by bolts passing through any position of the connecting groove and the connecting hole.

[0010] Furthermore, the extension column and the inner groove wall of the installation groove of the plow are in sliding fit, and the plow and the extension column are connected by bolts passing through any installation hole and the extension column.

[0011] Furthermore, the soil covering device includes a soil covering plate, the plate surface of the soil covering plate faces the plowing direction of the plowing device, and a soil digging structure is provided at the lower end of the soil covering plate.

[0012] Furthermore, the soil-digging structure includes a plurality of rake teeth.

[0013] Furthermore, the connecting plate is connected to the mounting column via a hinge, the hinge axis of the connecting plate is horizontally arranged and perpendicular to the plowing direction of the plow, and the mounting column is provided with a reset spring connected to the soil covering device.

[0014] Furthermore, the return spring is arranged on the mounting column above the connecting plate, one end of the return spring is connected to the mounting column, and the other end is connected to the soil cover above the connecting plate.

[0015] Furthermore, the return spring is arranged on the mounting column below the connecting plate, one end of the return spring is connected to the mounting column, and the other end is connected to the soil cover below the connecting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In the present invention, the mounting column is installed on the seed drill so that the plow and the soil covering device are close to the ground. A plurality of bolt holes are provided vertically on the plow. After the mounting groove of the plow is sleeved on the extension column, the height of the plow can be adjusted according to actual conditions, and then the plow is installed and fixed by passing the bolts through the mounting holes and the extension column. At the same time, the connection position between the soil covering device and the connecting plate is adjusted according to the height of the plow. Since the soil covering device is provided with a connecting groove, the bolts can pass through different positions of the connecting groove, thereby realizing the adjustment of the height of the soil covering device, and then cooperating with the plow to perform corresponding soil covering and digging operations, which is convenient for sowing grass seeds with different planting depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a structural diagram of the present utility model.

[0021] Markings and corresponding parts names in the accompanying drawings:

[0022] 1. Mounting column; 2. Plow; 3. Covering device; 4. Extension column; 5. Mounting slot; 6. Mounting hole; 7. Connecting plate; 8. Connecting hole; 9. Connecting slot; 10. Covering plate; 11. Rake teeth; 12. Return spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] A plowing and covering mechanism for a seed drill, referring to Figure 1 、 Figure 2 , including a mounting column 1 and a plow 2 and a covering device 3 respectively located on both sides of the lower part of the mounting column 1. An extension column 4 is provided on one side of the lower part of the mounting column 1. A mounting groove 5 is vertically opened on the side wall of the plow 2. A plurality of mounting holes 6 are spaced apart on the plow 2 along the length direction of the mounting groove 5. The plow 2 and the extension column 4 are connected by bolts passing through the mounting holes 6 and the extension column 4; a connecting plate 7 is provided on the side of the lower end of the mounting column 1 away from the extension column 4, and a connecting hole 8 is opened on the connecting plate 7. A through connecting groove 9 is vertically opened on the covering device 3. The covering device 3 and the connecting plate 7 are connected by bolts passing through any position of the connecting groove 9 and the connecting hole 8.

[0026] In this solution, the mounting column 1 is vertically mounted on the seed drill so that the plow 2 and the soil cover 3 are close to the ground, with the plow 2 in front and the soil cover 3 in the back. The plow 2 is provided with a plurality of bolt holes along the vertical direction. After the mounting groove 5 of the plow 2 is mounted on the extension column 4, the height of the plow 2 can be adjusted according to actual conditions. The plow 2 is then fixed by bolts passing through the mounting holes 6 and the extension column 4. At the same time, the connection position between the soil cover 3 and the connecting plate 7 is adjusted according to the height of the plow 2. Since the soil cover 3 is provided with a connecting groove 9, the bolts can pass through different positions of the connecting groove 9 to adjust the height of the soil cover 3. The soil cover 3 can then be adjusted in accordance with the plow 2 to perform corresponding soil covering and digging operations, making it convenient to sow grass seeds of different planting depths. Since the plow 2 and the soil cover 3 are both connected to the mounting column 1 with bolts, the plow 2 and the soil cover 3 can be easily disassembled and replaced.

[0027] Example 2

[0028] Based on Example 1, in this example, Figure 1 、 Figure 2The extension column 4 is in sliding engagement with the inner wall of the mounting slot 5 of the plow 2. The plow 2 and the extension column 4 are connected by bolts passing through any mounting hole 6 and the extension column 4. To adjust the height of the plow 2, simply slide the plow 2 up and down. Because the plow 2 and the extension column 4 are in sliding engagement, a single bolt is used to secure the plow 2 to the extension column 4, making installation and removal of the plow 2 more convenient and quick.

[0029] Example 3

[0030] Based on Example 1, in this example, Figure 1 、 Figure 2 The covering device 3 includes a covering plate 10, the surface of the covering plate 10 is facing the plowing direction of the plow 2, and a soil digging structure is provided at the lower end of the covering plate 10. The soil digging structure includes multiple rake teeth 11. The covering device 3 in this scheme can control the flatness of the soil after digging.

[0031] Example 4

[0032] Based on Example 3, in this example, referring to Figure 1 、 Figure 2 The connecting plate 7 is connected to the mounting column 1 by a hinge. The hinge axis of the connecting plate 7 is arranged horizontally and perpendicular to the plowing direction of the plow 2. A reset spring 12 is arranged on the mounting column 1 above the connecting plate 7. The reset spring 12 faces the soil covering device 3 and is connected to the upper end of the soil covering device 3. When the soil covering device 3 digs the soil, the upper end swings forward and squeezes the reset spring 12.

[0033] Since the covering device 3 is in the shape of a plate as a whole, the covering device 3 is likely to encounter more stones when digging and covering soil with a high stone content. In this solution, the covering plate 10 is designed so that the lower end can swing backwards, so that when the covering plate 10 encounters a stone during movement, it can swing backwards to provide a certain degree of buffering. On the one hand, it is convenient to reduce the vibration generated during the movement of the seed drill, and on the other hand, it is convenient for the seed drill to move smoothly as a whole and facilitate the normal covering operation. When the covering plate 10 encounters a stone, its lower end swings backwards, and the upper end of the covering plate 10 squeezes the return spring 12. When the covering plate 10 passes over the stone, the return spring 12 will push the covering plate 10 back to its original position.

[0034] In other embodiments, the return spring 12 can also be arranged below the connecting plate 7, with one end of the return spring 12 connected to the mounting column 1 and the other end connected to the covering plate 10 below the connecting plate 7; at this time, when the covering plate 10 digs the soil, the lower end of the covering plate 10 swings backward and stretches the return spring 12.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A plowing and covering mechanism for a seed drill, comprising a mounting post (1), a plow (2) and a covering device (3) located below the mounting post (1), characterized in that: An extension column (4) is provided at the lower portion of the mounting column (1); a mounting groove (5) is vertically provided on the side wall of the plow (2); a plurality of mounting holes (6) are spaced apart along the length direction of the mounting groove (5) on the plow (2); the plow (2) and the extension column (4) are connected by bolts passing through the mounting holes (6) and the extension column (4); A connecting plate (7) is provided on the side of the lower end of the mounting column (1) facing away from the plow (2), and a connecting hole (8) is provided on the connecting plate (7). A connecting groove (9) is provided vertically on the soil covering device (3), and the soil covering device (3) and the connecting plate (7) are connected by bolts passing through any position of the connecting groove (9) and the connecting hole (8).

2. The plowing and covering mechanism for a seed drill according to claim 1, characterized in that: The extension column (4) is in sliding fit with the inner groove wall of the mounting groove (5) of the plow (2), and the plow (2) and the extension column (4) are connected by bolts passing through any mounting hole (6) and the extension column (4).

3. The plowing and covering mechanism for a seed drill according to claim 1, characterized in that: The soil covering device (3) comprises a soil covering plate (10), the plate surface of the soil covering plate (10) faces the plowing direction of the plowing device (2), and a soil scraping structure is provided at the lower end of the soil covering plate (10).

4. The plowing and covering mechanism for a seed drill according to claim 3, characterized in that: The soil-digging structure comprises a plurality of rake teeth (11).

5. A plowing and soil covering mechanism for a seed drill according to claim 1 or 3, characterized in that: The connecting plate (7) is connected to the mounting column (1) via a hinge, the hinge axis of the connecting plate (7) is arranged horizontally and perpendicular to the plowing direction of the plow (2), and a return spring (12) connected to the soil covering device (3) is arranged on the mounting column (1).

6. The plowing and covering mechanism for a seed drill according to claim 5, characterized in that: The reset spring (12) is arranged on the mounting column (1) above the connecting plate (7), one end of the reset spring (12) is connected to the mounting column (1), and the other end is connected to the soil cover (3) above the connecting plate (7).

7. The plowing and soil covering mechanism for a seed drill according to claim 5, characterized in that: The reset spring (12) is arranged on the mounting column (1) below the connecting plate (7); one end of the reset spring (12) is connected to the mounting column (1), and the other end is connected to the soil cover (3) below the connecting plate (7).

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