Wheat nursery single-row single-grain seeder

Abstract

The utility model discloses a wheat nursery single-row single-grain seeder which comprises a support, a seeding box is arranged at the upper end of the support, a seed conveying disc is rotatably connected in the seeding box, a ratchet wheel is arranged at one end of the seed conveying disc, a rotating shaft is rotatably connected in the support, a first disc is arranged at one end of the rotating shaft, and a gear is arranged at one end of the rotating shaft. A sliding groove is formed in the support, a limiting rod is arranged in the sliding groove, a sliding block is slidably connected to the outer side of the limiting rod, a rack is arranged at one end of the sliding block, an axle is rotationally connected to the lower end of the support, an electromagnet is arranged at one end of the rack, and a second disc is arranged on the outer side of the axle. A permanent magnet is arranged on the outer side of the second disc, a shell is arranged at the rear end of the support, and a slide rheostat is arranged in the shell. According to the utility model, proper planting spacing can be conveniently adjusted according to actual requirements, so that the yield of wheat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheat sowing, in particular to a single-row single-grain seeder for a wheat nursery. Background Art

[0002] Wheat is an important food crop of the genus Triticum in the family Poaceae. Wheat is a cereal crop widely grown around the world. Its caryopsis is one of the main foods for humans. It can be made into bread, steamed buns, biscuits, noodles and other foods after being ground into flour. It can be made into beer, alcohol, liquor, or biomass fuel after fermentation. When planting single-row single-grain in a wheat nursery, the prior art uses a single-row single-grain seeder for planting. However, when the existing single-row single-grain seeder is used, its planting spacing is fixed and it is not possible to adjust the appropriate planting spacing according to the needs of planting, thereby affecting the yield of wheat. Utility Model Content

[0003] The utility model aims to provide a single-row single-grain seeder for a wheat nursery, which can conveniently adjust the appropriate planting spacing according to actual needs, thereby increasing the yield of wheat.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A single-row single-grain seeder for a wheat nursery comprises a bracket, a seeding box is arranged at the upper end of the bracket, a seeding tube is connected to the lower end of the seeding box, a seeding disc is rotatably connected to the seeding tube inside the seeding box, a plurality of seeding openings arranged at equal intervals are opened on the outer side of the seeding disc, one end of the seeding disc is rotatably connected to the ratchet wheel at the outer side of the seeding box, a horizontally arranged rotating shaft is rotatably connected to the ratchet wheel inside the bracket, a first disc is arranged at one end of the rotating shaft close to the ratchet wheel, a gear is arranged at one end of the rotating shaft away from the ratchet wheel, and a ratchet pawl cooperating with the ratchet wheel is arranged at one end of the first disc close to the ratchet wheel;

[0006] A vertically arranged slide groove is provided inside the bracket near the ratchet wheel, a limit rod is vertically arranged inside the slide groove, a slider slidably connected to the slide groove is slidably connected to the outer side of the limit rod, a rack meshing with the slider is arranged at one end of the slider near the output gear, an axle is rotatably connected to the lower end of the bracket near the rack, wheels are arranged at both ends of the axle, an electromagnet is arranged at one end of the rack near the axle, a second disc is arranged on the outer side of the axle near the rack, a plurality of permanent magnets cooperating with the electromagnet are arranged at equal intervals on the outer side of the second disc, and each permanent magnet is in a repulsive state with the electromagnet;

[0007] A battery for providing power is arranged at the rear end of the bracket, a shell is arranged at the rear end of the bracket near the battery, a sliding rheostat is arranged inside the shell, a horizontally arranged threaded rod is rotatably connected to the inside of the shell near the sliding rheostat, a threaded sleeve for adjusting the resistance value of the sliding rheostat is threadedly connected to the outer side of the threaded rod, a spring is arranged on the outer side of the limit rod between the end of the slider away from the axle and the slide groove, and the repulsive force generated between each permanent magnet and the electromagnet is always greater than the elastic force generated by the spring.

[0008] By adopting the above technical solution, when planting, first put the wheat into the seeding box, then push the bracket to drive the wheel to rotate, the wheel drives the axle to rotate, the axle drives the second disc to rotate, and the permanent magnet on the second disc rotates. When the permanent magnet rotates to the bottom of the electromagnet, the current in the battery flows to the electromagnet, so that a repulsive force is generated between the electromagnet and the permanent magnet. Under the action of the repulsive force, the electromagnet drives the rack to move toward and away from the second disc, and the rack drives the slider to slide in the slide groove relative to the limit rod, thereby compressing the spring. When the permanent magnet passes the electromagnet, under the action of the gravity of the rack itself, the rack moves in the direction close to the second disc, so that the rack drives the slider to reciprocate up and down in the slide groove relative to the limit rod, and then the rack drives the gear to reciprocate, and the gear drives the wheel The shaft rotates back and forth, and the first disc rotates back and forth as well, and the first disc drives the pawl to rotate back and forth, thereby driving the ratchet to complete the rotation, and the ratchet drives the seed transport disc to rotate, and the wheat is driven from the seeding box to the seeding tube through the seed transport port, and then falls from the seeding tube to complete the seeding; when it is necessary to adjust the planting spacing, it is only necessary to rotate the threaded rod in the outer shell, and the threaded rod drives the threaded sleeve to rotate, thereby adjusting the resistance value of the sliding rheostat, changing the current passed into the electromagnet, thereby changing the repulsive force between the electromagnet and the permanent magnet, and changing the distance that the rack moves away from the second disc under the action of the repulsive force, thereby changing the distance that the pawl drives the ratchet to rotate each time, thereby changing the time it takes for the seed transport port to drive the wheat to the seeding tube, and then completing the adjustment of the planting spacing.

[0009] The utility model is further configured as follows: a furrowing plow is detachably provided at the front end of the bracket, soil covering plates are detachably provided at both left and right ends of the rear end of the bracket, and a connecting frame is rotatably connected to the front end of the bracket.

[0010] The utility model is further configured as follows: a spring piece for limiting the rotation of the first disc is arranged at one end of the first disc close to the ratchet wheel and close to the ratchet pawl.

[0011] The utility model is further configured as follows: a knob is provided at one end of the threaded rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The planting spacing can be conveniently adjusted according to actual planting needs, thereby increasing the yield of wheat. The repulsive force generated by the permanent magnet and the electromagnet drives the rack to move away from the second disc, and the rack completes reciprocating motion, thereby allowing the pawl to complete reciprocating rotation. The pawl drives the ratchet wheel to allow the seeding disc to complete rotation, and rotates through the seed transport port to drive the wheat from the seeding box to the seeding tube. By changing the resistance value of the sliding rheostat, the current passed into the electromagnet is changed, thereby changing the repulsive force between the electromagnet and the permanent magnet. The distance moved by the rack under the action of the repulsive force changes accordingly, thereby changing the distance the pawl rotates each time, and then changing the time it takes for the ratchet wheel to drive the seed transport disc to rotate one circle, thereby completing the adjustment of the planting spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the utility model;

[0016] Figure 3 It is to show the positional relationship between the permanent magnet and the electromagnet of the utility model;

[0017] Figure 4 It is a kind of transport plate showing the utility model.

[0018] In the figure: 1. bracket; 2. connecting frame; 3. furrowing plow; 4. seeding box; 5. seed transport disc; 6. seed transport port; 7. ratchet; 8. pawl; 9. first disc; 10. rotating shaft; 11. gear; 12. rack; 13. slide; 14. limit rod; 15. slider; 16. spring; 17. electromagnet; 18. axle; 19. second disc; 20. permanent magnet; 21. wheel; 22. housing; 23. sliding rheostat; 24. threaded rod; 25. threaded sleeve; 26. knob; 27. battery; 28. soil covering disc; 29. ​​shrapnel; 30. seeding tube. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example, see Figure 1-4 A single-row single-grain seeder for a wheat nursery comprises a bracket 1, a connecting bracket 2 is rotatably connected to the front end of the bracket 1, a furrowing plow 3 is detachably provided at the front end of the bracket 1, a soil covering plate 28 is detachably provided on the left and right sides of the rear end of the bracket 1, a sowing box 4 is provided at the upper end of the bracket 1, a sowing tube 30 is connected to the lower end of the sowing box 4, a seed transport plate 5 is rotatably connected to the lower end of the sowing box 4, two seed transport ports 6 arranged at equal intervals are provided on the outer side of the seed transport plate 5, and a ratchet 7 is provided on the left end of the seed transport plate 5 on the outer side of the sowing box 4.

[0024] The left end of the inside of the bracket 1 is rotatably connected to a horizontally arranged rotating shaft 10 near the ratchet 7, and a first disc 9 is arranged at the right end of the rotating shaft 10. The right end of the first disc 9 is rotatably connected to a pawl 8 matching the ratchet 7. The right end of the first disc 9 is provided with a spring 29 for limiting its rotation near the pawl 8, so that the pawl 8 can always drive the ratchet 7 to rotate. A gear 11 is arranged at the left end of the outer side of the rotating shaft 10, and a vertically arranged slide groove 13 is provided at the left end of the inside of the bracket 1 near the gear 11. A limiting rod 14 is vertically arranged inside the slide groove 13, and a slider 15 slidably connected to the slide groove 13 is slidably connected to the outer side of the limiting rod 14. A rack 12 meshing with the gear 11 is arranged at the rear end of the slider 15, and an electromagnet 17 is arranged at the lower end of the rack 12. A spring 16 is arranged on the outer side of the limiting rod 14 between the upper end of the slider 15 and the slide groove 13, which can ensure that the rack 12 can return to its original position after moving.

[0025] The lower end of the bracket 1 is rotatably connected to an axle 18, and a wheel 21 is provided at both ends of the axle 18. A second disc 19 is provided at the left end of the outer side of the axle 18, and four permanent magnets 20 cooperating with the electromagnet 17 are evenly spaced on the outer side of the second disc 19. Each permanent magnet 20 is in a repulsive state with the electromagnet 17, which can make the rack 12 move in the direction away from the second disc 19. The repulsive force generated between each permanent magnet 20 and the electromagnet 17 is always greater than the elastic force of the spring 16, ensuring that the repulsive force generated between the permanent magnet 20 and the electromagnet 17 can always drive the rack 12 to move.

[0026] A battery 27 for providing power is provided at the rear end of the bracket 1, a shell 22 is provided at the rear end of the bracket 1, a sliding rheostat 23 is provided at the lower end of the shell 22, a threaded rod 24 is rotatably connected to the inside of the shell 22 and the top of the sliding rheostat 23, a threaded sleeve 25 for adjusting the resistance of the sliding rheostat 23 is threadedly connected to the outer side of the threaded rod 24, and a knob 26 is provided at the left end of the threaded rod 24, which can facilitate the adjustment of the resistance of the sliding rheostat 23, thereby changing the current passed into the electromagnet 17, changing the repulsive force between the electromagnet 17 and the permanent magnet 20, thereby adjusting the planting spacing.

[0027] Usage: When planting, first load the wheat into the seeding box 4, then connect the connecting frame 2 to the tractor, the tractor drives the bracket 1 to move, the furrowing plow 3 to furrow, the bracket 1 drives the wheel 21 to rotate, the wheel 21 drives the axle 18 to rotate, the axle 18 drives the second disc 19 to rotate, the permanent magnet 20 on the second disc 19 rotates, when the permanent magnet 20 rotates to the bottom of the electromagnet 17, the current in the battery 27 flows to the electromagnet 17, so that a repulsive force is generated between the electromagnet 17 and the permanent magnet 20, under the action of the repulsive force, the electromagnet 17 drives the rack 12 to move toward and away from the second disc 19, and the rack 12 drives the slider 15 to slide in the slide groove 13 relative to the limit rod 14, thereby compressing the spring 1 6. After the permanent magnet 20 rotates past the electromagnet 17, under the elastic force of the spring 16, the rack 12 moves toward the direction close to the second disc 19, so that the rack 12 drives the slider 15 to reciprocate up and down in the slide groove 13, and then the rack 12 drives the gear 11 to rotate back and forth, and the gear 11 drives the rotating shaft 10 to rotate back and forth. As the first disc 9 rotates back and forth, the first disc 9 drives the pawl 8 to rotate back and forth, thereby driving the ratchet 7 to complete the rotation, and the spring piece 29 allows the pawl 8 to always drive the ratchet 7 to rotate, and the ratchet 7 drives the seed transport disc 5 to rotate, and the wheat is driven from the seed box 4 into the seeding tube 30 through the seed transport port 6, and then falls from the seeding tube 30, and is covered with soil through the soil covering disc 28 to complete the sowing.

[0028] When the planting spacing needs to be adjusted, it is only necessary to rotate the threaded rod 24 in the housing 22 through the knob 26. The threaded rod 24 drives the threaded sleeve 25 to rotate, thereby adjusting the resistance value of the sliding rheostat 23 and changing the current passed into the electromagnet 17, thereby changing the repulsive force between the electromagnet 17 and the permanent magnet 20, and changing the distance that the rack 12 moves away from the second disk 19 under the action of the repulsive force, thereby changing the distance that the pawl 8 drives the ratchet wheel 7 to rotate each time, thereby changing the time it takes for the seed transport port 6 to drive the wheat to the sowing tube 30, thereby completing the adjustment of the planting spacing.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A single-row single-seed seeder for a wheat nursery, comprising a support (1), characterized in that: A seed box (4) is arranged at the upper end of the support (1), and a seed tube (30) is connected to the lower end of the seed box (4). A seed transport disc (5) is rotatably connected to the seed tube (30) in the interior of the seed box (4), and a plurality of seed transport openings (6) arranged at equal intervals are provided on the outer side of the seed transport disc (5). A ratchet (7) rotatably connected to the seed transport disc (5) is arranged at one end on the outer side of the seed box (4). A horizontally arranged rotating shaft (10) is rotatably connected to the ratchet (7) in the interior of the support (1), and a first disc (9) is arranged at one end of the rotating shaft (10) close to the ratchet (7). A gear (11) is arranged at one end of the rotating shaft (10) away from the ratchet (7), and a ratchet pawl (8) matching the ratchet (7) is arranged at one end of the first disc (9) close to the ratchet (7). A vertically arranged slide groove (13) is provided inside the bracket (1) near the ratchet (7), a limit rod (14) is vertically arranged inside the slide groove (13), a slider (15) slidably connected to the slide groove (13) is slidably connected to the outer side of the limit rod (14), a rack (12) meshing with the gear (11) is provided at one end of the slider (15) near the gear (11), and the lower end of the bracket (1) is rotatably connected to an axle ( 18), wheels (21) are arranged at both left and right ends of the axle (18), an electromagnet (17) is arranged at one end of the rack (12) close to the axle (18), a second disc (19) is arranged on the outer side of the axle (18) close to the rack (12), and a plurality of permanent magnets (20) matched with the electromagnet (17) are arranged at equal intervals on the outer side of the second disc (19), and each permanent magnet (20) is in a repulsive state with the electromagnet (17); A storage battery (27) for providing power is arranged at the rear end of the bracket (1), a housing (22) is arranged at the rear end of the bracket (1) near the storage battery (27), a sliding rheostat (23) is arranged inside the housing (22), a horizontally arranged threaded rod (24) is rotatably connected to the interior of the housing (22) near the sliding rheostat (23), a threaded sleeve (25) for adjusting the resistance value of the sliding rheostat (23) is threadedly connected to the outer side of the threaded rod (24), a spring (16) is arranged on the outer side of the limit rod (14) between the end of the slider (15) away from the axle (18) and the slide groove (13), and the repulsive force generated between each permanent magnet (20) and the electromagnet (17) is always greater than the elastic force generated by the spring (16).

2. A wheat nursery single-row single-grain seeder according to claim 1, characterized in that: The front end of the support (1) is detachably provided with a furrowing plow (3), the left and right ends of the rear end of the support (1) are detachably provided with soil covering plates (28), and the front end of the support (1) is rotatably connected to a connecting frame (2).

3. A wheat nursery single-row single-grain seeder according to claim 1, characterized in that: An end of the first disc (9) close to the ratchet wheel (7) and close to the ratchet pawl (8) is provided with a spring piece (29) for limiting the rotation thereof.

4. A wheat nursery single-row single-grain seeder according to claim 1, characterized in that: A knob (26) is provided at one end of the threaded rod (24).

Images