Self-propelled row sowing machine capable of uniformly sowing

Abstract

A self-propelled row seeding machine capable of uniformly seeding comprises a rack and a driving system arranged on the rack, and a driving device is respectively in transmission connection with an advancing roller, an air pump, a seeder and a supporting wheel. According to the utility model, through the cooperation of all the parts, the seed cleaning and reseeding processes are carried out simultaneously when the row seeding machine advances, so that the seeding efficiency and the seeding quality are greatly improved. According to the utility model, the soil covering roller consisting of the irregular tooth-shaped connecting sheets is additionally arranged behind the rack, so that the problem of non-uniform soil covering can be effectively solved, and the irregular tooth-shaped connecting sheets can smash caked soil, so that the covered soil is finer and smoother; when the whole soil covering roller moves forwards, the soil covering uniformity is further ensured, the land is effectively leveled, and more favorable conditions are created for the growth of the seeds.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a self-propelled row seeder that sows seeds evenly. Background Technology

[0002] In modern agricultural production, the performance of row seeders directly affects crop yield and quality. While traditional row seeders have significantly improved sowing efficiency, some problems remain. Particularly in seed selection, existing row seeders often cannot effectively distinguish between qualified and unqualified seeds, which are then sown into the soil along with the seed. Once sown, these unqualified seeds not only fail to produce healthy plants but also waste land resources, increase production costs, and negatively impact overall germination rates and the final harvest. The limitations of existing row seeders in seed selection are still significant, urgently requiring a new type of row seeder capable of screening and eliminating unqualified seeds while simultaneously performing reseeding. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a self-propelled row seeder that can sow seeds evenly.

[0004] The technical solution of this utility model is:

[0005] A self-propelled row seeder for uniform sowing includes a frame and a drive unit mounted on the frame. The drive unit is characterized by being connected to a forward roller, an air pump, a seeder, and support wheels. The frame has multiple seeders, each with two corresponding plowshares at both ends. An air intake pipe is fixedly connected to the frame and connected to the air pump inlet via a flexible hose. Each seeder includes a housing and a seed box. The housing contains a rotatable seed suction disc. The housing is divided into a front housing and a rear housing by the seed suction disc. The front housing has an air intake port connected to the air intake pipe via the flexible hose. The seed box is connected to the outer side of the rear housing and communicates with the seed inlet of the rear housing. A seed outlet is located at the bottom of the housing, with a seed outlet plate connected above it and an arc-shaped seed outlet auxiliary plate connected to the seed outlet. A detection probe is located inside the rear housing, and a reseeding mechanism is fixed outside the seed box. A seed cleaning mechanism is located inside the rear housing.

[0006] Furthermore, the seed cleaning mechanism includes a seed cleaning plate and a defective seed box. The seed cleaning plate is fixed inside the rear housing, and the defective seed box is connected to the rear housing and corresponds to the position of the seed cleaning plate. An electric telescopic rod is provided inside the seed cleaning plate.

[0007] Furthermore, the replanting mechanism includes a replanting box fixed outside the seed box, the seed box having a replanting inlet communicating with the replanting box, and a replanting opening at the lower end of the replanting box corresponding to the seed size; a fixed platform is provided below the replanting box, the fixed platform being fixedly connected to the rear shell, and a replanting tray is provided between the replanting box and the fixed platform, the replanting tray having a plurality of replanting holes evenly distributed along the circular direction corresponding to the seed size; a seeding notch is provided on the fixed platform near the rear shell, the seeding notch corresponding to the size of the replanting holes, and a seeding pipe is connected below the seeding notch; the replanting tray is driven by a motor fixed below the fixed platform.

[0008] Furthermore, a screen is inclinedly arranged inside the seed box; sliding grooves are provided at the bottom of both side walls of the seed box, and the bottom plate of the seed box is connected to the seed box through the sliding grooves.

[0009] Furthermore, a support frame is fixed on the frame, and the support frame is connected to a connecting frame. The connecting frame includes two connecting arms, which are connected by a rotating shaft. The other end of the connecting arm is connected to a soil covering roller, and a buffer spring rod is provided between the connecting frames.

[0010] Furthermore, the soil covering roller includes two circular connecting panels, with an irregularly toothed connecting piece connecting the circular connecting panels.

[0011] Furthermore, the plowshare includes a plow tip and a side extension. The plow tip and the side extension are movably connected by a pivot. A connecting rod is fixed to the rear of each side extension. A positioning rod is fixedly connected to the rear of the plow tip by a reinforcing rib. The surface of the positioning rod is provided with multiple matching positioning holes. The connecting rod and the positioning rod are connected by bolts passing through the positioning holes.

[0012] Furthermore, the plowshare of the plow is connected to the frame via a crossbeam, and a height adjustment assembly is provided between the crossbeam and the frame. The height adjustment assembly includes a spur gear connected to the crossbeam, a gear pair meshing with the spur gear, and a threaded rod that drives the gear pair to rotate.

[0013] Furthermore, the plow handle is provided with a spacing adjustment pin, and the crossbeam is provided with a plurality of spacing adjustment holes corresponding to the spacing adjustment pin. The plow handle is movably connected to the crossbeam by the spacing adjustment pin passing through the spacing adjustment holes.

[0014] Furthermore, the seeder is connected to the frame via a support rod, and the seeder is movably connected to the support rod.

[0015] The beneficial effects of this utility model are:

[0016] This invention uses a combination of a seed cleaning plate, a defective seed box, and a detection probe to remove seeds that accumulate during the seeder's operation.

[0017] The system adsorbs substandard seeds, and then the detection probe transmits the detection information to the motor. The motor drives the replanting disc to work. The replanting disc rotates so that the replanting hole is turned to the replanting gap. The seeds fall along the seeding pipe to the missing seeding area when the seeder was sown. Through the cooperation of various components, the seed cleaning and replanting processes are carried out at the same time as the seeder moves forward, which greatly improves the sowing efficiency and sowing quality.

[0018] This invention is designed for clay soils by incorporating a forward roller, which provides support for the seeding machine.

[0019] This invention enhances the stability of the row seeder during field operations. Furthermore, the larger contact area between the forward roller and the soil significantly reduces the risk of the seeder getting stuck in mud or stopping operation when encountering poor working conditions such as clay soil. In addition, addressing the issues of uneven soil coverage and clumping in clay soils, this invention adds a soil-covering roller composed of irregularly toothed connecting plates at the rear of the frame. This effectively solves the problem of uneven soil coverage, and the irregularly toothed connecting plates break up clumps of soil, resulting in a finer covering. The forward movement of the soil-covering roller further ensures the uniformity of soil coverage, effectively leveling the land and creating more favorable conditions for seed growth.

[0020] This utility model is equipped with a spacing adjustment mechanism on both the plow and the seeder, which can be adjusted according to different...

[0021] The spacing between the plow and the seeder needs to be adjusted to improve the versatility of the row seeder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a top view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the seeder of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the seeder of this utility model;

[0026] Figure 5 This is another internal structural diagram of the seeder of this utility model;

[0027] Figure 6 This is a cross-sectional structural diagram of the seed cleaning plate of this utility model;

[0028] Figure 7This is a cross-sectional structural diagram of the replanting mechanism of this utility model;

[0029] Figure 8 This is a schematic diagram of the plowshare structure of this utility model;

[0030] Figure 9 This is a schematic diagram of the height adjustment component structure of this utility model;

[0031] Figure 10 This is a schematic diagram of the irregular toothed connecting piece structure of this utility model.

[0032] In the attached diagram, 1 is the frame, 2 is the drive unit, 3 is the forward roller, 4 is the spacing adjustment pin, 5 is the support wheel, 6 is the plow head, 7 is the air suction pipe, 8 is the seeding auxiliary plate, 9 is the support frame, 10 is the connecting frame, 11 is the soil covering roller, 12 is the buffer spring rod, 13 is the circular connecting panel, 14 is the irregular toothed connecting piece, 15 is the seed box, 16 is the rear shell, 17 is the front shell, 18 is the inferior seed box, 19 is the replanting box, 20 is the seeding port, 21 is the seeding plate, 22 is the seed inlet, 23 is the detection probe, 24 is the seed suction plate, and 25 is the seed suction plate. Air intake, 26 Seed inlet of seed replenishment box, 27 Seed replenishment port, 28 Fixed platform, 29 Seed replenishment tray, 30 Seed replenishment hole, 31 Seed lowering notch, 32 Seed lowering pipe, 33 Motor, 34 Crossbeam, 35 Spur gear, 36 Gear pair, 37 Threaded rod, 38 Seed cleaning plate, 38-1 Electric telescopic rod, 39 Plow rod, 40 Hose, 41 Air pump, 42 Screen, 6-1 Plow tip, 6-2 Side extension, 6-3 Connecting rod, 6-4 Reinforcing rib, 6-5 Positioning rod, 6-6 Positioning hole. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] like Figures 1 to 5As shown, a self-propelled row seeder for uniform sowing includes a frame 1 and a drive unit 2 mounted on the frame 1. The drive unit 2 is characterized by being connected to a forward roller 3, an air pump 41, a seeder, and support wheels 5. The frame 1 has multiple seeders, with two sets of corresponding plowshares 6 at each end of the seeder. An air intake pipe 7 is fixedly connected to the frame 1, and the air intake pipe 7 is connected to the air inlet of the air pump 41 via a flexible hose 40. The seeder includes a housing and a seed box 15. The housing contains a rotatable seed suction disc 24. The housing is constructed from a suction disc... The seed tray 24 is divided into a front shell 17 and a rear shell 16. The front shell 17 is provided with an air intake 25, which is connected to the air intake pipe 7 through a hose 40. The seed box 15 is connected to the outside of the rear shell 16, and the seed box 15 is connected to the seed inlet of the rear shell 16. A seed lowering port 20 is provided at the bottom of the shell, and a seed lowering plate 21 is connected above the seed lowering port 20. An arc-shaped seed lowering auxiliary plate 8 is connected to the seed lowering port 20. A detection probe 23 is provided inside the rear shell 16, and a replanting mechanism is fixed outside the seed box 15. A seed cleaning mechanism is provided inside the rear shell 16.

[0035] While the drive unit 2 drives the forward roller 3 forward, it also drives the air pump 41 to start working synchronously with the seeder. The seed suction plate 24 rotates and suctions seeds. When the seeds rotate to the seed lowering plate 21, the seeds fall into the seed lowering port 20 after being blocked by the seed lowering plate 21. During the seed suction process, broken seeds, inferior seeds, and other unqualified seeds may be suctioned. At this time, the detection probe 23 detects this situation and transmits a signal to the seed cleaning mechanism. The seed cleaning mechanism removes the unqualified seeds. At the same time, the detection probe 23 transmits a signal to the re-seeding mechanism to start the re-seeding work. Through the cooperation of various components, the seeding, seed cleaning, and re-seeding processes are carried out simultaneously while the seeder is moving forward, which greatly improves the seeding efficiency and seeding quality.

[0036] As a preferred embodiment of the present invention, the seed cleaning mechanism includes a seed cleaning plate 38 and a substandard seed box 18. The seed cleaning plate 38 is fixed inside the rear housing 16, and the substandard seed box 18 is connected to the rear housing 16 and corresponds to the position of the seed cleaning plate 38. An electric telescopic rod 38-1 is provided inside the seed cleaning plate 38.

[0037] After receiving the signal transmitted by the detection probe 23, the electric telescopic rod 38-1 drives the seed cleaning plate 38 to extend to the gap in front of the unqualified seeds. When the unqualified seeds rotate to the seed cleaning plate 38, they are blocked and fall into the inferior seed box 18 with the seed cleaning plate 38. At the same time, the electric telescopic rod 38-1 drives the seed cleaning plate 38 to retract, completing the seed cleaning work. The seed cleaning plate 38 is in a retracted state when it is not working.

[0038] like Figure 3As shown, the replanting mechanism includes a replanting box 19 fixed outside the seed box 15. The seed box 15 has a replanting box inlet 26 communicating with the replanting box 19. The lower end of the replanting box 19 has a replanting port 27 corresponding to the seed size. A fixed platform 28 is provided below the replanting box 19. The fixed platform 28 is fixedly connected to the rear shell 16. A replanting tray 29 is provided between the replanting box 19 and the fixed platform 28. The replanting tray 29 has a plurality of replanting holes 30 corresponding to the seed size evenly opened along the circular direction. The fixed platform 28 has a seeding notch 31 near the rear shell 16. The seeding notch 31 corresponds to the size of the replanting holes 30. A seeding pipe 32 is connected below the seeding notch 31. The replanting tray 29 is driven by a motor 33 fixed below the fixed platform 28.

[0039] When the detection probe signal 23 is transmitted to the replanting point, the motor 33 receives the signal and starts working, driving the replanting disc 29 to rotate. When the replanting hole 30 on the replanting disc 29 rotates to the replanting opening 27, the seeds automatically fall from the replanting opening 27 into the replanting hole 30. As the replanting disc 29 rotates, the replanting hole 30 with seeds rotates to the seeding gap 31. The seeds go along the seeding gap 31 to the seeding pipe 32. The opening of the seeding pipe 32 is located above the seeding auxiliary plate 8. At this time, the replanted seeds fall to the position of the inferior seeds that were originally removed on the seeding auxiliary plate 8 and slide into the soil along with other seeds. In this way, while ensuring seed quality, the continuity of sowing is also ensured, and land resources are not wasted due to seed shortages.

[0040] A sieve 42 is inclinedly installed inside the seed box 15; sliding grooves are opened at the bottom of both side walls of the seed box 15 (not shown in the figure, the rest are the same), and the bottom plate of the seed box 15 is connected to the seed box 15 through the sliding grooves; the sieve 42 performs preliminary screening of the seeds, reducing the number of unqualified seeds in subsequent work, reducing the workload of cleaning and replanting, and improving sowing efficiency. The size of the sieve mesh 42 can be selected according to different seeds; small-diameter seeds, broken seeds, etc. will fall to the bottom of the seed box 15 through the sieve mesh. The bottom plate of the seed box 15 is movably connected to the seed box 15 through the sliding grooves. The screened seeds can be cleaned by pulling open the bottom plate.

[0041] like Figure 1 and Figure 2 As shown, a support frame 9 is fixed on the frame 1. The support frame 9 is connected to the connecting frame 10. The connecting frame 10 includes two connecting arms, which are connected by a rotating shaft. The other end of the connecting arm is connected to the covering roller 11. A buffer spring rod 12 is provided between the connecting frames. During operation, it adapts to the undulations of the ground, so that the covering roller 11 always fits the ground surface, avoiding the problem of uneven covering thickness caused by uneven terrain, significantly improving the quality of covering operation, and ensuring the stability of covering operation.

[0042] like Figure 1 , Figure 2 and Figure 9As shown, the covering roller 11 includes two circular connecting panels 13, with an irregular toothed connecting piece 14 connected between the circular connecting panels 13; clay soil is prone to clumping, and the irregular toothed connecting piece 14 can break up the clumped soil, making the covering more delicate. When the covering roller 11 moves forward as a whole, it further ensures the uniformity of the covering, effectively levels the land, and creates more favorable conditions for seed growth.

[0043] In a preferred embodiment of the present invention, the plow head 6 includes a plow tip 6-1 and a side extension 6-2. The plow tip 6-1 and the side extension 6-2 are movably connected by a pivot. A connecting rod 6-3 is fixed behind each side extension 6-2. A positioning rod is fixedly connected behind the plow tip 6-1 by a reinforcing rib 6-4. The surface of the positioning rod 6-5 is provided with a plurality of matching positioning holes 6-6. The connecting rod 6-3 and the positioning rod 6-5 are connected by bolts passing through the positioning holes 6-6.

[0044] In actual operation, the operator can change the unfolding angle of the side spreader 6-2 by adjusting the relative position of the connecting rod 6-3 and the positioning rod 6-5 according to different trenching width requirements; similarly, for another set of plow heads 6, the soil covering width can also be adjusted according to the trenching width requirements; the positioning hole 6-6 ensures that the side spread of each plow head 6 can unfold at a consistent angle, thereby ensuring the consistency and accuracy of the operation.

[0045] like Figure 8 As shown, the plow handle 39 of the plow head 6 is connected to the frame 1 via the crossbeam 34. A height adjustment assembly is provided between the crossbeam 34 and the frame 1. The height adjustment assembly includes a spur gear 35 connected to the crossbeam 34, a gear pair 36 meshing with the spur gear 35, and a threaded rod 37 that drives the gear pair 36 to rotate.

[0046] The meshing transmission of spur gear 35 and gear pair 36, combined with the drive of threaded rod 37, forms a mechanical height adjustment assembly. By rotating threaded rod 37, the lifting and lowering displacement of crossbeam 34 can be precisely controlled. During use, the height adjustment assembly is operated to control the lifting and lowering displacement of crossbeam 34 according to the required trenching depth, thereby driving the plow head 6 to lift and lower. At the same time, the same operation is performed on another set of plow heads 6 according to the required trenching depth and soil covering thickness. This ensures the accuracy of trenching depth and soil covering thickness.

[0047] Furthermore, the plowshare 39 is equipped with a spacing adjustment pin 4, and the crossbeam 34 has multiple spacing adjustment holes corresponding to the spacing adjustment pin 4. The plowshare 39 is movably connected to the crossbeam 34 by the spacing adjustment pin 4 passing through the spacing adjustment holes. The spacing adjustment pin 4 on the plowshare 39 matches the multiple spacing adjustment holes on the crossbeam 34, realizing flexible adjustment of planting spacing. By simply changing the hole through which the spacing adjustment pin 4 passes, the spacing between the plowshares can be quickly and accurately adjusted, thereby meeting the diverse spacing requirements of different crops.

[0048] Furthermore, the seeder is connected to the frame 1 via a support rod, and the seeder and the support rod are movably connected. In this embodiment, a sliding rod is used as the support rod, which not only supports the seeder but also enables flexible adjustment of the seeder spacing, meeting the diverse needs of different crop planting spacing and improving the flexibility and efficiency of the sowing operation.

[0049] The above description is merely a preferred embodiment of this utility model. However, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, are all covered within the protection scope of this utility model.

Claims

1. A self-propelled row planter for uniform seeding, comprising a frame (1), drive means (2) arranged on the frame (1), characterized in that: The driving device (2) is respectively in transmission connection with the forward roller (3), the air pump (41), the seeder and the supporting wheel (5); a plurality of seeders are arranged on the frame (1), and two groups of plough heads (6) corresponding to the seeders are arranged at both ends of the seeders; the frame (1) is fixedly connected with the air suction pipeline (7), and the air suction pipeline (7) is connected with the air inlet of the air pump (41) through the hose (40); the seeder comprises a shell and a seed box (15), the inside of the shell is provided with a seed suction disc (24) capable of rotating relative to the shell, the shell is divided into a front shell (17) and a rear shell (16) by the seed suction disc (24), the front shell (17) is provided with an air suction port (25), the air suction port (25) is connected with the air suction pipeline (7) through the hose (40); the seed box (15) is connected to the outside of the rear shell (16), and the seed box (15) is communicated with the seed inlet (22) of the rear shell (16); a seed outlet (20) is arranged below the shell, a seed plate (21) is connected above the seed outlet (20), and an arc-shaped seed auxiliary plate (8) is connected at the seed outlet (20); a detection probe (23) is arranged in the rear shell (16), a seed supplementing mechanism is fixed to the outside of the seed box (15), and a seed cleaning mechanism is arranged in the rear shell (16).

2. A self-propelled row planter for uniform seeding as set forth in claim 1, characterized in that: The seed cleaning mechanism comprises a seed cleaning plate (38) and a poor seed box (18), the seed cleaning plate (38) is fixed in the rear shell (16), the poor seed box (18) is the same as the rear shell (16) and corresponds to the position of the seed cleaning plate (38), and the inside of the seed cleaning plate (38) is provided with an electric telescopic rod (38-1).

3. The self-propelled row planter of claim 1, wherein: The seed supplementing mechanism comprises a seed supplementing box (19) fixed to the outside of the seed box (15), the seed box (15) is provided with a seed supplementing box seed inlet (26) communicated with the seed supplementing box (19), and the lower end of the seed supplementing box (19) is provided with a seed supplementing port (27) corresponding to the size of the seed; a fixing table (28) is arranged below the seed supplementing box (19), the fixing table (28) is fixedly connected with the rear shell (16), a seed supplementing disc (29) is arranged between the seed supplementing box (19) and the fixing table (28), a plurality of seed supplementing holes (30) corresponding to the size of the seed are uniformly arranged on the seed supplementing disc (29) in a circular direction; a seed outlet (31) is arranged on the fixing table (28) close to the rear shell (16), the size of the seed outlet (31) corresponds to that of the seed supplementing hole (30), and a seed outlet pipeline (32) is connected below the seed outlet (31); the seed supplementing disc (29) is driven by a motor (33) fixed below the fixing table (28).

4. The self-propelled row planter of claim 1, wherein: A screen (42) is arranged in the seed box (15) in an inclined manner; a sliding groove is arranged in the bottom of the side wall of the seed box (15), and the bottom plate of the seed box (15) is connected with the seed box (15) through the sliding groove.

5. The self-propelled row planter of claim 1, wherein: The frame (1) is fixed with a support frame (9), the support frame (9) is connected with a connecting frame (10), the connecting frame (10) comprises two connecting arms, the connecting arms are connected through a rotating shaft, the other end of the connecting arms is connected with a covering roller (11), and the connecting frame (10) is provided with a buffer spring rod (12) between the connecting frame (10).

6. A self-propelled row planter for uniform seeding as set forth in claim 5, characterized in that: The covering roller (11) comprises two circular connecting panels (13), and the circular connecting panels (13) are connected with irregular tooth-shaped connecting plates (14) between the circular connecting panels (13).

7. The self-propelled row planter of claim 1, wherein: The plow head (6) comprises a plow tip (6-1) and a side spread (6-2), the plow tip (6-1) and the side spread (6-2) are movably connected through a rotating shaft, the side spread (6-2) is fixed with a connecting rod (6-3) at the rear, the plow tip (6-1) is fixedly connected with a positioning rod (6-5) through a reinforcing rib (6-4) at the rear, a plurality of positioning holes (6-6) are formed in the surface of the positioning rod (6-5), and the connecting rod (6-3) and the positioning rod (6-5) are connected by bolts penetrating the positioning holes (6-6).

8. The self-propelled row planter of claim 1, wherein: The plow rod (39) of the plow head (6) is connected with the frame (1) through a cross beam (34), a height adjusting assembly is arranged between the cross beam (34) and the frame (1), the height adjusting assembly comprises a straight gear (35) connected with the cross beam (34), a gear pair (36) meshing with the straight gear (35), and a threaded rod (37) driving the gear pair (36) to rotate.

9. A self-propelled row planter that plants uniformly as recited in claim 8, wherein: The plow rod (39) is provided with a spacing adjusting pin (4), a plurality of spacing adjusting holes corresponding to the spacing adjusting pin (4) are formed in the cross beam (34), and the plow rod is movably connected with the cross beam (34) by the spacing adjusting pin (4) penetrating the spacing adjusting holes.

10. The self-propelled row planter of claim 1, wherein: The seeder is connected with the frame (1) through a supporting rod, and the seeder is movably connected with the supporting rod.

Images