Multifunctional seed sowing device for drilling

Abstract

A flange plate is arranged on a main shaft, a spiral line type grooved wheel and a prepared spike tooth type wheel are arranged on the two sides of the flange plate respectively, and the spiral line type grooved wheel and the prepared spike tooth type wheel are alternately, synchronously and rotationally connected with the main shaft; according to different sizes of seeds to be sown, switching of the spiral line type grooved wheel and the prepared spike tooth type wheel is achieved, the integration degree of the seed sowing wheel is improved, the sowing requirements of the seeds with different sizes are met, the equipment development cost and the farmer receiving cost are reduced, and the universality of the sowing machine is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of seed drills, and in particular to a multifunctional seed metering device for row sowing. Background Art

[0002] The seed meter is placed at the bottom of the seed box or above the furrow opener. Its function is to convert the seeds from a group into individual, uniform seed flow or continuous single seeds. There are many types of seed meters, which can be divided into row seeding seed meters and hole seeding seed meters according to the sowing method. The row seeding seed meters include inner and outer groove wheel type, dial wheel type, spoon type, grinding disc type, centrifugal type, and pneumatic type. The hole seeding seed meters include shaped hole disc type, socket wheel type, shaped hole belt type, centrifugal type, and finger clamp type. Among the many seed meters, the outer groove wheel type and horizontal disc type are the most representative, and other types of seed meters are mostly derived from these two types of seed meters.

[0003] Among them, the outer groove wheel type row seeding device needs to design different outer groove wheels according to the different sizes of seeds to be sown. How to improve the integration of the outer groove wheel to meet the sowing needs of seeds of different sizes, reduce the equipment development cost and farmers' collection cost, and improve the versatility of the seeder is a problem that needs to be solved urgently. Summary of the invention

[0004] The present invention provides a multifunctional row sowing seed metering device to solve the technical problems existing in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multifunctional seed metering device for row sowing, comprising a left shell body, a right shell body, a main shaft, a spiral groove wheel, a spike-toothed wheel, a seed guide barrel, an upper seed blocking mechanism, a lower seed blocking mechanism and a rear cover shell, the left shell body and the right shell body are plugged and fastened to each other, and U-shaped notches, a first axial hole and a second axial hole are symmetrically arranged at positions on the left shell body and the right shell body, the main shaft passes through the U-shaped notch, and a flange is arranged on the main shaft, the spiral groove wheel and the spike-toothed wheel are respectively arranged on both sides of the flange, the spiral groove wheel and the spike-toothed wheel are alternately connected to the main shaft for synchronous rotation, the seed guide barrel is connected to the lower part of the left shell body and the right shell body through a semi-lock buckle, the upper seed blocking mechanism is tightly connected to the first axial hole, the lower seed blocking mechanism is tightly connected to the second axial hole, and the rear cover shell is arranged at the rear end of the U-shaped notch and is connected to the left shell body and the right shell body.

[0006] Preferably, the spiral groove wheel adopts an Archimedean spiral groove wheel.

[0007] Preferably, an annular groove is provided on the main shaft, a keyway is provided on the flange, a first sliding key is inserted into the spiral groove wheel, a second sliding key is inserted into the spike-tooth wheel, and the first sliding key and the second sliding key are inserted into the keyway alternately; hooks are symmetrically provided on the spike-tooth wheel, and the hooks are embedded in the annular groove.

[0008] Preferably, slots are symmetrically provided on the left shell and the right shell, and plug boards are inserted into the slots.

[0009] Preferably, the upper seed blocking mechanism includes an inner sleeve, an upper seed blocking plate, a side skirt and a support plate, and the inner sleeve, the upper seed blocking plate, the side skirt and the support plate are integrally injection molded. A hexagonal axial hole is provided in the center of the inner sleeve, a waist-shaped hole is provided at the front end of the inner sleeve, a cylindrical hole coaxial with the hexagonal axial hole is provided on the side skirt, the cylindrical hole is hinged to the first axial hole by a pin, and a through hole is provided on the support plate.

[0010] Preferably, the upper seed blocking mechanism also includes an adjustment mechanism, which uses an adjustment bolt to pass through the through hole and the waist-shaped hole from bottom to top in sequence, and an adjustment nut is screwed into the upper end of the waist-shaped hole, and a compression spring is passed through the bolt between the support plate and the waist-shaped hole.

[0011] Preferably, the lower seed blocking mechanism includes a lower seed blocking plate and a narrow arc plate, and the lower seed blocking plate and the narrow arc plate are integrally injection molded, the lower seed blocking plate is hinged to the second axial hole through a pin shaft torsion spring, and under the action of the elastic restoring force of the torsion spring, the lower seed blocking plate maintains a clockwise rotation trend.

[0012] Preferably, the top of the narrow arc plate is embedded in the lower ends of the skirts on both sides.

[0013] The beneficial effects of adopting the above technical solution are:

[0014] 1. The multifunctional seeding device for row sowing of the present invention connects the spiral groove wheel to the main shaft when sowing large-grain seeds such as soybeans, corn, and peanuts. Specifically, the first sliding key is pushed inward, the first sliding key is inserted into the key slot, and the second sliding key is pushed out of the key slot. At this time, the spiral groove wheel rotates synchronously with the main shaft, and the spike-tooth wheel does not rotate synchronously with the main shaft. The seeding device realizes row sowing of large-grain seeds such as soybeans, corn, and peanuts.

[0015] When row-sowing small-grain seeds such as rapeseed and sesame, the spike-toothed wheel is connected to the main shaft. Specifically, the second sliding key is pushed inward, the second sliding key is inserted into the key slot, and the first sliding key is pushed out of the key slot. At this time, the spike-toothed wheel rotates synchronously with the main shaft, and the spiral groove wheel does not rotate synchronously with the main shaft. The seed meter realizes row-sowing of small-grain seeds such as rapeseed and sesame.

[0016] The multifunctional row-seeding device of the present invention realizes switching between the spiral groove wheel and the spike-tooth wheel according to the different sizes of the seeds to be sown, thereby improving the integration of the seed wheel, meeting the sowing needs of seeds of different sizes, reducing the equipment development cost and the farmers' collection cost, and improving the versatility of the seeder.

[0017] 2. U-shaped notches are provided at symmetrical positions on the left and right shells; the rear cover is provided at the rear end of the U-shaped notch and is connected to the left and right shells; this facilitates the inspection and disassembly of the main shaft, the spiral groove wheel and the spike tooth wheel.

[0018] The main shaft is provided with an annular groove, and the spike-toothed wheel is symmetrically provided with hooks, which are embedded in the annular groove; this ensures that the spike-toothed wheel will not fall off the main shaft when it does not rotate synchronously with the main shaft. The helical groove wheel is a universal standard part, and an internal circlip is used to limit the helical groove wheel from falling off the main shaft.

[0019] 3. The multifunctional seeding device for row sowing of the present invention can adjust the compression spring to squeeze the support plate by loosening and tightening the adjusting nut according to the different sizes of the seed grains to be sown, so as to achieve the clockwise or counterclockwise swing adjustment of the upper seed blocking plate around the center line of the cylindrical hole, so that the gap between the upper seed blocking plate and the spiral groove wheel or the spike tooth wheel can meet the seeding requirements of seeds of different sizes. At the same time, the narrow arc plate on the top of the lower seed blocking plate is embedded in the lower ends of the skirts on both sides, and always keeps in contact with the upper seed blocking plate to prevent seeds from jumping out during the seeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The multifunctional seed metering device for row sowing of the present invention is Figure 1 ;

[0021] Figure 2 The multifunctional seed metering device for row sowing of the present invention is Figure 2 ;

[0022] Figure 3 It is an exploded view of the multifunctional seed metering device for row sowing of the present invention;

[0023] Figure 4 It is a schematic diagram of the spindle structure;

[0024] Figure 5 is a schematic diagram of the inner sleeve structure;

[0025] Figure 6 It is a schematic diagram of the structure of the upper seed retaining plate, the side skirt and the support plate being integrally injected;

[0026] in:

[0027] 1. Left housing; 2. Right housing; 3. Main shaft; 4. Helical groove wheel; 5. Spike-tooth wheel; 6. Seed guide cylinder; 7. Upper seed blocking mechanism; 8. Lower seed blocking mechanism; 9. Rear cover;

[0028] 10. U-shaped notch; 11. first axial hole; 12. second axial hole; 13. slot; 13-1. plug-in board;

[0029] 30, flange; 30-1, keyway; 31, ring groove;

[0030] 40. First sliding key; 50. Second sliding key; 51. Hanging buckle;

[0031] 60. Half lock;

[0032] 70, inner sleeve; 70-1, hexagonal shaft hole; 70-2, waist-shaped hole; 71, upper seed stop plate; 72, side skirt; 72-1, cylindrical hole; 73, support plate; 73-1, through hole; 74, adjusting bolt; 75, adjusting nut; 76, compression spring;

[0033] 80, lower seed blocking plate; 80-1, narrow arc plate. DETAILED DESCRIPTION

[0034] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0035] like Figures 1 to 6 As shown, the present invention is a multifunctional row seeding device, which realizes the switching of the spiral groove wheel and the spike tooth wheel according to the different sizes of the seeds to be seeded, thereby improving the integration of the seeding wheel, meeting the sowing needs of seeds of different sizes, reducing the equipment development cost and the farmers' collection cost, and improving the versatility of the seeder.

[0036] Specifically, Figures 1 to 6 As shown, it includes a left shell 1, a right shell 2, a main shaft 3, a spiral groove wheel 4, a spike-toothed wheel 5, a seed guide barrel 6, an upper seed blocking mechanism 7 and a lower seed blocking mechanism 8. The left shell 1 and the right shell 2 are plugged and fastened to each other, and U-shaped grooves 10, a first axial hole 11 and a second axial hole 12 are symmetrically arranged on the left shell 1 and the right shell 2. The main shaft 3 passes through the U-shaped groove 10, and a flange 30 is arranged on the main shaft 3. The spiral groove wheel 4 and the spike-toothed wheel 5 are respectively arranged on both sides of the flange 30. The spiral groove wheel 4 and the spike-toothed wheel 5 are alternately connected to the main shaft 3 for synchronous rotation. The seed guide barrel 6 is connected to the lower part of the left shell 1 and the right shell 2 through a semi-lock buckle 60, the upper seed blocking mechanism 7 is fastened to the first axial hole 11, and the lower seed blocking mechanism 8 is fastened to the second axial hole 12. The rear cover 9 is arranged at the rear end of the U-shaped groove 10 and is connected to the left shell 1 and the right shell 2.

[0037] The spiral groove wheel 4 is an Archimedean spiral groove wheel.

[0038] The main shaft 3 is provided with an annular groove 31, the flange 30 is provided with a key groove 30-1, the first sliding key 40 is inserted into the spiral groove wheel 4, the second sliding key 50 is inserted into the spike-toothed wheel 5, and the first sliding key 40 and the second sliding key 50 are alternately inserted into the key groove 30-1; the spike-toothed wheel 5 is symmetrically provided with hooks 51, and the hooks 51 are embedded in the annular groove 31.

[0039] The left shell 1 and the right shell 2 are symmetrically provided with slots 13 , into which the plugboard 13 - 1 is inserted.

[0040] The upper seed blocking mechanism 7 includes an inner sleeve 70, an upper seed blocking plate 71, a side skirt 72 and a support plate 73. The inner sleeve 70, the upper seed blocking plate 71, the side skirt 72 and the support plate 73 are integrally injection molded. A hexagonal axial hole 70-1 is provided at the center of the inner sleeve 70, a waist-shaped hole 70-2 is provided at the front end of the inner sleeve 70, a cylindrical hole 72-1 which is coaxial with the hexagonal axial hole 70-1 is provided on the side skirt 72, the cylindrical hole 72-1 is hinged to the first axial hole 11 by a pin, and a through hole 73-1 is provided on the support plate 73.

[0041] The upper seed blocking mechanism 7 also includes an adjustment mechanism, which uses an adjustment bolt 74 to pass through the through hole 73-1 and the waist-shaped hole 70-2 from bottom to top in sequence, and an adjustment nut 75 is screwed into the upper end of the waist-shaped hole 70-2, and a compression spring 76 is connected to the bolt 74 between the support plate 73 and the waist-shaped hole 70-2.

[0042] The lower seed blocking mechanism 8 includes a lower seed blocking plate 80 and a narrow arc plate 80-1, and the lower seed blocking plate 80 and the narrow arc plate 80-1 are integrally injection molded. The lower seed blocking plate 80 is hinged to the second axial hole 12 through a pin shaft torsion spring, and under the action of the elastic restoring force of the torsion spring, the lower seed blocking plate 80 maintains a clockwise rotation trend.

[0043] The top of the narrow arc plate 80 - 1 is embedded in the lower ends of the skirts 72 on both sides.

[0044] The specific working method is described below with specific embodiments:

[0045] Embodiment 1:

[0046] The multifunctional seeding device for row sowing of the present invention connects the spiral groove wheel 4 to the main shaft 3 when row sowing large-grain seeds such as soybeans, corn, peanuts, etc. Specifically, the first sliding key 40 is pushed inward, the first sliding key 40 is inserted into the key groove 30-1, and the second sliding key 50 is pushed out of the key groove 30-1. At this time, the spiral groove wheel 4 rotates synchronously with the main shaft 3, and the spike-tooth wheel 5 does not rotate synchronously with the main shaft 3. The seeding device realizes row sowing of large-grain seeds such as soybeans, corn, peanuts, etc.

[0047] When row-sowing small-grain seeds such as rapeseed and sesame, the spike-toothed wheel 5 is connected to the main shaft 3. Specifically, the second sliding key 50 is pushed inward, the second sliding key 50 is inserted into the key slot 30-1, and the first sliding key 40 is pushed out of the key slot 30-1. At this time, the spike-toothed wheel 5 rotates synchronously with the main shaft 3, and the spiral groove wheel 4 does not rotate synchronously with the main shaft 3. The seed meter realizes row-sowing of small-grain seeds such as rapeseed and sesame.

[0048] The multifunctional row-seeding device of the present invention realizes the switching of the spiral groove wheel 4 and the spike-tooth wheel 5 according to the different sizes of the seeds to be sown, thereby improving the integration of the seed wheel, meeting the sowing needs of seeds of different sizes, reducing the equipment development cost and the farmers' collection cost, and improving the versatility of the seeder.

[0049] Embodiment 2:

[0050] U-shaped notches 10 are symmetrically arranged on the left shell 1 and the right shell 2; the rear cover 9 is arranged at the rear end of the U-shaped notch 10 and is connected to the left shell 1 and the right shell 2; the inspection and disassembly of the main shaft 3, the helical groove wheel 4 and the spike tooth wheel 5 are convenient.

[0051] The main shaft 3 is provided with an annular groove 31, and the spike-toothed wheel 5 is symmetrically provided with hooks 51, and the hooks 51 are embedded in the annular groove 31, which ensures that the spike-toothed wheel 5 will not fall off the main shaft 3 when it does not rotate synchronously with the main shaft 3. The helical groove wheel 4 is a universal standard part circlip, and an internal circlip is used to limit the helical groove wheel 4 from falling off the main shaft 3.

[0052] Embodiment 3:

[0053] The multifunctional seeding device for row sowing of the present invention can adjust the compression spring 76 to squeeze the support plate 73 by loosening or tightening the adjusting nut 75 according to the different sizes of the seed grains to be sown, so as to achieve the clockwise or counterclockwise swing adjustment of the upper seed blocking plate 71 around the center line of the cylindrical hole 72-1, so that the gap between the upper seed blocking plate 71 and the spiral groove wheel 4 or the spike tooth wheel 5 can meet the seeding requirements of seeds of different sizes. At the same time, the narrow arc plate 80-1 at the top of the lower seed blocking plate 80 is embedded in the lower ends of the skirts 72 on both sides, and always keeps in contact with the upper seed blocking plate 71 to prevent seeds from jumping out during the seeding process.

[0054] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A multifunctional seed metering device for row sowing, characterized in that: The invention comprises a left housing (1), a right housing (2), a main shaft (3), a spiral groove wheel (4), a spike tooth wheel (5), a seed guide cylinder (6), an upper seed blocking mechanism (7), a lower seed blocking mechanism (8) and a rear cover (9); the left housing (1) and the right housing (2) are plugged and fastened to each other; a U-shaped notch (10), a first axial hole (11) and a second axial hole (12) are symmetrically arranged on the left housing (1) and the right housing (2); the main shaft (3) passes through the U-shaped notch (10); a flange (30) is arranged on the main shaft (3); the spiral groove wheel (4) is provided with a flange (30 ... The groove wheel (4) and the spike-toothed wheel (5) are respectively arranged on both sides of the flange (30); the spiral groove wheel (4) and the spike-toothed wheel (5) are alternately connected to the main shaft (3) for synchronous rotation; the seed guide cylinder (6) is connected to the lower part of the left shell (1) and the right shell (2) through a semi-locking buckle (60); the upper seed blocking mechanism (7) is tightly connected to the first shaft hole (11); the lower seed blocking mechanism (8) is tightly connected to the second shaft hole (12); the rear cover (9) is arranged at the rear end of the U-shaped notch (10) and is connected to the left shell (1) and the right shell (2).

2. A multifunctional seed metering device for row sowing according to claim 1, characterized in that: The spiral groove wheel (4) is an Archimedean spiral groove wheel.

3. A multifunctional seed metering device for row sowing according to claim 1, characterized in that: The main shaft (3) is provided with an annular groove (31), the flange (30) is provided with a keyway (30-1), the first sliding key (40) is inserted into the helical groove wheel (4), the second sliding key (50) is inserted into the spike-toothed wheel (5), and the first sliding key (40) and the second sliding key (50) are alternately inserted into the keyway (30-1); the spike-toothed wheel (5) is symmetrically provided with hooks (51), and the hooks (51) are embedded in the annular groove (31).

4. The multifunctional seed metering device for row sowing according to claim 1, characterized in that: The left housing (1) and the right housing (2) are symmetrically provided with slots (13), and the plugboard (13-1) is inserted into the slots (13).

5. The multifunctional seed metering device for row sowing according to claim 1, characterized in that: The upper seed blocking mechanism (7) comprises an inner sleeve (70), an upper seed blocking plate (71), a side skirt (72) and a support plate (73); the inner sleeve (70), the upper seed blocking plate (71), the side skirt (72) and the support plate (73) are integrally injection molded; a hexagonal axial hole (70-1) is provided at the center of the inner sleeve (70); a waist-shaped hole (70-2) is provided at the front end of the inner sleeve (70); a cylindrical hole (72-1) coaxial with the hexagonal axial hole (70-1) is provided on the side skirt (72); the cylindrical hole (72-1) is hinged to the first axial hole (11) via a pin shaft; and a through hole (73-1) is provided on the support plate (73).

6. A multifunctional seed metering device for row sowing according to claim 5, characterized in that: The upper seed blocking mechanism (7) also includes an adjustment mechanism, which uses an adjustment bolt (74) to pass through the through hole (73-1) and the waist-shaped hole (70-2) from bottom to top in sequence, and an adjustment nut (75) is screwed into the upper end of the waist-shaped hole (70-2), and a compression spring (76) is connected to the bolt (74) between the support plate (73) and the waist-shaped hole (70-2).

7. The multifunctional seed metering device for row sowing according to claim 1, characterized in that: The lower seed-blocking mechanism (8) comprises a lower seed-blocking plate (80) and a narrow arc plate (80-1), and the lower seed-blocking plate (80) and the narrow arc plate (80-1) are integrally injection-molded, the lower seed-blocking plate (80) is hinged to the second shaft hole (12) via a pin shaft torsion spring, and the lower seed-blocking plate (80) maintains a clockwise rotation trend under the action of the elastic restoring force of the torsion spring.

8. The multifunctional seed metering device for row sowing according to claim 7, characterized in that: The top of the narrow arc plate (80-1) is embedded in the lower ends of the skirts (72) on both sides.

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