Pressure-adjustable double-disc ditching seeder and reclamation seeder

Abstract

The invention discloses a pressure-adjustable double-disc ditching seeder and a reclamation seeder, the seeder comprises a main support leg, the bottom of the main support leg is provided with ditching double discs, and the front end of the main support leg is rotatably connected with one ends of a pair of rotary connecting pieces; a pressing mechanism is installed at the rear end of the main supporting leg, and a telescopic piece is arranged between the main supporting leg and the pressing mechanism. And by arranging the pressing mechanism with the telescopic piece, an operator can adjust the pressing force of the pressing single wheel on the ground according to the soil texture condition. And through the cooperation of the pressing single wheel and the ditching double discs, each seed can be subjected to stable ditching treatment and pressing landfill, so that the seeding quality is ensured. And the double-disc furrows arranged in the front-back direction can prevent soil from being clamped, and the effective soil dividing effect is achieved. And meanwhile, the main supporting leg can be timely recovered to the initial position after changing along with the height of the soil layer by rotating the elastic piece arranged between the connecting pieces.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a pressure-adjustable sowing leg and a cultivator equipped with the sowing leg. Background Art

[0002] The double-disc furrow seeder assembly is used to create furrows, plant seeds, fill soil, and compact the soil after rotary tillage. During this operation, the seeds must be compacted to prevent air leakage and prevent seedling emergence. During the compaction process, the pressure rollers must apply varying degrees of force to the seedling strip, depending on the soil quality.

[0003] The existing seeder assembly can only realize furrowing and soil filling, but cannot adjust the pressure according to the soil and suppress the seedling belt. Summary of the Invention

[0004] The object of the present invention is to provide a pressure-adjustable sowing device to achieve the effect of adjusting the pressure according to the hardness of the soil.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an adjustable pressure double-disc furrowing seeder, the seeder comprising a main leg, a furrowing double disc installed at the bottom of the main leg, the front end of the main leg being rotatably connected to one end of a pair of rotating connecting members; a suppression mechanism is installed at the rear end of the main leg, and a telescopic member is provided between the main leg and the suppression mechanism.

[0006] The present invention also provides another technical solution: a reclamation and seeding machine, which also includes front and rear support beams and a transverse support beam that are connected to each other, the front ends of the front and rear support beams are rotatably connected to the reclamation machine, and a plurality of clamping seats are installed on the transverse support beam, and the other ends of a pair of rotating connecting members are rotatably connected to the clamping seats.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] By setting up a suppression mechanism with a telescopic part, the operator can adjust the strength of the suppression wheel on the ground according to the soil conditions.

[0009] The combination of a single pressing wheel and double ditching discs ensures that each seed is stably ditched and pressed, ensuring high sowing quality. The double ditching discs arranged front and back prevent soil from getting stuck, achieving effective soil separation.

[0010] At the same time, rotating the elastic member installed between the connecting parts can also make the main legs return to their initial positions in time after the height of the soil layer changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the adjustable pressure double-disc furrow seeder of the present invention.

[0012] Figure 2 Schematic diagram of the telescopic member of the present invention.

[0013] Figure 3 It is a schematic diagram of a reclamation seeder of the present invention.

[0014] Figure 4 It is a three-dimensional diagram of a reclamation seeder of the present invention.

[0015] 1. Front and rear support beams; 2. Cultivator; 3. Telescopic member; 301. First screw; 302. Second screw; 303. Mounting cylinder; 304. Mounting cap; 305. First nut; 306. Second nut; 307. Spring; 4. Seeding box; 5. Horizontal support beam; 6. Main support leg; 7. Double ditching disc; 8. Rotating connector; 9. Clamping seat; 10. Seeding tube; 11. Bracket; 12. Suppression wheel; 13. Second spring; 14. Connecting rod; 15. Opening; 16. Hydraulic cylinder; 17. Covering spring; 18. Standing platform; 19. Scraper plate; 20. Support plate; 21. Step mounting plate. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0017] See also Figure 1-2 The present invention provides a technical solution: a double-disc furrowing seeder with adjustable pressure, the seeder comprising a main leg 6, a double-disc furrowing disc 7 being installed at the bottom of the main leg 6 for furrowing the soil to facilitate landfill after sowing the seeds. The front end of the main leg 6 is rotatably connected to one end of a pair of rotating connectors 8. The rotating connectors 8 are used to install the entire sowing leg. Since a pair of rotating connectors 8 are provided, the main leg 6 connected thereto can form a four-bar linkage structure, allowing the main leg 6 to move freely up and down, thereby adapting to different ground conditions.

[0018] The rear end of the main leg 6 is equipped with a suppression mechanism for filling soil after sowing. The suppression mechanism includes a bracket 11, one end of which is pivotally connected to the main leg 6. The other end of the bracket 11 is mounted with a suppression wheel 12. A soil-covering spring 17 is installed on the side wall of the bracket 11 to fill the soil after the soil is suppressed. A scraper 19 is installed through the bridge of the bracket 11 to scrape the soil off the suppression wheel 12.

[0019] A telescopic member 3 is installed between the main leg 6 and the suppression mechanism. While ensuring flexibility, it allows for adjustment of its telescopic length as needed, thereby adjusting the suppression force for different soil conditions. The telescopic member includes a first screw 301, a second screw 302, a mounting barrel 303, and a mounting cap 304. A first nut 305 is threaded onto the first screw 301, which passes through the mounting cap 304, and the first nut 305 is retained inside the mounting cap 304. A second nut 306 is provided on the inner wall of one end of the mounting barrel 303, and an external thread is provided on the outer wall of the other end of the mounting barrel 303. The mounting cap 304 is internally threaded, and the internal threads of the mounting cap 304 mate with the external threads of the mounting barrel 303, allowing the screw connection position to be adjusted. The second screw 302 is threadedly connected to the second nut 306. A spring 307 is sleeved over the first and second screws 301, 302, with both ends of the spring 307 respectively abutting against the first and second nuts 305, 306. Because the screwing position of the mounting cap 304 and the mounting barrel 303 is adjustable, the spacing between the first and second screws 301, 302 is also adjustable. Due to the inherent elasticity of the spring 307, the expansion and contraction of the spring 307 when the soil height changes can reduce the impact on the suppression effect.

[0020] At the same time, the first screw rod 301 is rotatably connected to the main support leg 6 , and the second screw rod 302 is rotatably connected to the bracket 11 , so that the angle between the main support leg 6 and the suppression single wheel 12 is adjustable.

[0021] To restore the main leg 6 to its initial position, an elastic member is provided between the pair of rotating connectors 8. This elastic member comprises a second spring 13 and a connecting rod 14 connected to each other. The connecting rod 14 has a plurality of openings 15 formed therein. One side of the rotating connector 8 is connected to the second spring 13, while the other side of the rotating connector 8 is connected to the openings 15 via a pin. By adjusting the connection position of the rotating connector 8 and the openings 15 on the connecting rod 14, the extension length of the second spring 13 changes, thereby varying the elastic force of the second spring 13 between the pair of rotating connectors 8 and thus changing the return speed of the main leg 6.

[0022] Working principle: When in use, a pair of rotating connectors 8 connected to the main support legs 6 are rotated and connected to the reclamation equipment. At this time, the reclamation equipment keeps moving, driving the furrowing double discs 7 to keep moving. At this time, seeds are placed at the furrowing position, and then the seeds will be suppressed by the suppression single wheel 12.

[0023] When the pressing force of the pressing wheel 12 needs to be adjusted, it is only necessary to adjust the overall length of the telescopic member 3. In this case, the mounting cap 304 needs to be rotated to change its position on the mounting cylinder 303. Due to the limiting effect of the mounting cap 304 on the first nut 305 and the elasticity of the spring 307, the distance between the first screw 301 and the second screw 302 changes, thereby adjusting the pressing force of the pressing wheel 12.

[0024] See also Figure 3-4 The present invention also provides another technical solution: a reclaiming and seeding machine, comprising interconnected front and rear support beams 1 and transverse support beams 5. The front ends of the front and rear support beams 1 are rotatably connected to a reclaiming machine 2, which is rotatably connected to one end of a hydraulic cylinder 16. The other end of the hydraulic cylinder 16 is rotatably connected to the cylinder tension beam of the front and rear support beams 1. When the machine is idle, the output end of the hydraulic cylinder 16 shortens, allowing the reclaiming machine 2 to completely clear the ground. When the reclaiming machine 2 is in operation, the hydraulic cylinder 16 extends, allowing the reclaiming machine 2 to contact the ground, allowing the reclaiming machine 2 to operate normally.

[0025] Several clamping seats 9 are mounted on the transverse support beam 5. The other ends of the pair of rotating connectors 8 are rotatably connected to the clamping seats 9. To ensure that the double ditching discs 7 can be staggered, the clamping seats 9 include long and short clamping seats, which are staggered. This prevents soil from being trapped and effectively separates the soil.

[0026] The reclamation seeder also includes a seeding box 4 and a standing platform 18. Support plates 20 are provided at both ends of the transverse support beam 5. The seeding box 4 is mounted on the support plates 20 to hold seeds. One end of the seeding tube 10 is mounted on the seeding box 4, with the other end of the seeding tube 10 facing the furrowing disc 7, enabling seeding after reclamation. Step mounting plates 21 are installed on both sides of the standing platform 18, and the step mounting plates 21 are mounted on the support plates 20, allowing the operator to stand directly on them.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-disc furrow seeder with adjustable pressure, characterized by: The seeder comprises a main leg (6), a furrowing double disc (7) is installed at the bottom of the main leg (6), and the front end of the main leg (6) is rotatably connected to one end of a pair of rotating connecting members (8); A suppression mechanism is installed at the rear end of the main support leg (6), and a telescopic member (3) is provided between the main support leg (6) and the suppression mechanism.

2. The adjustable pressure double-disc furrow seeder according to claim 1, characterized in that: The suppression mechanism comprises a bracket (11), one end of the bracket (11) is rotatably connected to the main leg (6), and the other end of the bracket (11) is provided with a suppression single wheel (12).

3. The adjustable pressure double-disc furrow seeder according to claim 2, characterized in that: The telescopic member comprises a first screw rod (301), a second screw rod (302), a mounting tube (303) and a mounting cap (304); the first screw rod (301) is screwed with a first nut (305), and the first screw rod (301) passes through the mounting cap (304); a second nut (306) is provided on the inner wall of one end of the mounting tube (303); an outer wall of the other end of the mounting tube (303) is provided with an external thread; an internal thread is provided in the mounting cap (304), and the internal thread of the mounting cap (304) matches the external thread of the mounting tube (303); The second screw rod (302) is screwed to the second nut (306); a spring (307) is sleeved on the first screw rod (301) and the second screw rod (302); and two ends of the spring (307) respectively abut against the first nut (305) and the second nut (306); the first screw rod (301) is rotatably connected to the main support leg (6); and the second screw rod (302) is rotatably connected to the bracket (11).

4. The adjustable pressure double-disc furrow seeder according to claim 1, characterized in that: An elastic member is provided between the pair of rotating connecting members (8); The elastic member comprises a second spring (13) and a connecting rod (14) connected to each other, a plurality of openings (15) are provided on the connecting rod (14), the rotating connecting member (8) on one side is connected to the second spring (13), and the rotating connecting member (8) on the other side is connected to the openings (15) via a pin shaft.

5. The adjustable pressure double-disc furrow seeder according to claim 2, characterized in that: A soil covering spring (17) is installed on the side wall of the bracket (11); and a scraper plate (19) is installed on the bracket (11) via a bridge.

6. A reclamation seeder, comprising the adjustable pressure double-disc furrow seeder according to claim 1, characterized in that: The invention also includes front and rear support beams (1) and transverse support beams (5) connected to each other, wherein the front ends of the front and rear support beams (1) are rotatably connected to a cultivator (2), and a plurality of clamping seats (9) are installed on the transverse support beam (5), and the other ends of a pair of rotating connecting members (8) are rotatably connected to the clamping seats (9).

7. The reclamation seeder according to claim 6, characterized in that: The clamping seat (9) comprises a long clamping seat and a short clamping seat, and the long clamping seat and the short clamping seat are arranged in a staggered manner.

8. The reclamation seeder according to claim 6, characterized in that: The cultivator (2) is rotatably connected to one end of a hydraulic cylinder (16), and the other end of the hydraulic cylinder (16) is rotatably connected to the cylinder tension beams of the front and rear support beams (1).

9. The reclamation seeder according to claim 6, characterized in that: The invention also includes a sowing box (4) and a standing platform (18), wherein support plates (20) are provided at both ends of the transverse support beam (5), and the sowing box (4) is mounted on the support plates (20); step mounting plates (21) are installed on both sides of the standing platform (18), and the step mounting plates (21) are mounted on the support plates (20).

10. The reclamation seeder according to claim 9, characterized in that: One end of a sowing tube (10) is installed on the sowing box (4), and the other end of the sowing tube (10) faces the furrowing plate (7).

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