Single-pressure sliding type seed drill with adjustable plant spacing

Abstract

The present invention belongs to the technical field of design and manufacturing of agricultural machinery, and particularly relates to a single-pressure sliding type seed drill with adjustable plant spacing, comprising a seed taking chuck, the seed taking chuck comprising a seed taking seat, a clamping rod assembly, a seed taking box and a driving core disk, a seed taking nest head being arranged on the seed taking seat; the clamping rod assembly comprising a clamping head, a torsion spring and a clamping rod, the seed taking box wraps the torsion spring and is connected to the seed taking seat; the ratchet is in a circular ring shape, a notch groove is concavely arranged on the circumference of the outer ring of the ratchet, and a clamping protrusion which is adapted to the groove on the moving disk is convexly arranged on the inner ring of the ratchet; a pawl socket for placing a pawl and a flat spring socket for placing an elastic flat spring are protruding outwards on the inner wall in the middle of the seed taking chuck, when the ratchet is built into the inner hole at the center of the seed taking chuck, one end of the pawl is placed in the pawl socket, and the other end is pressed in the notch groove, while the flat spring is placed in the flat spring socket and pressed on the pawl, thereby ensuring that the seed taking chuck stops rotating when the moving disk is reversed. The invention has high sowing accuracy, saves seeds, does not require seed selection, and is not prone to damage.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery design and manufacturing technology, and in particular relates to a single-pressure sliding hole seeder with adjustable plant spacing. Background Technology

[0002] Currently, with the diversification of agriculture, especially the large-scale planting of crops such as cotton and corn, the demand for precision seeders is increasing. However, the seeders currently on the market for these crops are generally either hole-type or scoop-type. These types of seeders have poor adaptability to seed size, easily resulting in missing holes for large seeds and excessive seed quantity for small seeds, leading to seed waste. Existing clamp-type seeders on the market suffer from poor flexibility, fixed and non-adjustable plant spacing, and the tendency for untreated, irregular seeds to jam the seeder. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a single-pressure sliding hill-planting planter with adjustable plant spacing. This invention allows for adjustment of plant spacing according to different sowing needs, features highly interchangeable parts, and has a simple structure.

[0004] The technical solution of this invention: A single-pressure sliding hill-planting device with adjustable plant spacing, comprising, from left to right, a rotating shaft, a fixed plate, a ratchet, a seed-collecting clamp, a seed-separating plate, a duckbill assembly, a moving plate, and a pressure plate concentrically and coaxially connected together. The seed-collecting clamp includes a seed-collecting seat, several independent clamping rod assemblies, and several independent seed-collecting boxes and a drive core plate adapted to the clamping rod assemblies. Several protruding seed-collecting holes are evenly distributed on the circumference of the seed-collecting seat. At least two support rings are formed inside the seed-collecting clamp, namely an outer support ring and an inner support ring. Each support ring has a screw hole for connecting the seed collection box; the clamping rod assembly includes a clamp head, a torsion spring, and a clamping rod. The clamping rod consists of a clamping rod head with a certain curvature at the front and a clamping rod tube with an insertion hole at the rear. The torsion spring is sleeved on the outside of the clamping rod tube. The clamp head consists of a wave head with a certain curvature at the front and a connecting rod connecting the wave head. The connecting rod is inserted into the clamping rod tube. The clamping rod head and the wave head face opposite directions. The drive core disk is built into the inner hole in the center of the seed collection clamping disk. The center part of the drive core disk protrudes outward to form a boss ring. The base of the boss ring is set in two arc-shaped steps, namely the upper step and the lower step. The clamping rod head rests on the base formed by the upper and lower steps, and fluctuates with the height of the upper and lower steps, which in turn causes the wave head to fluctuate, thus causing the action of picking up and releasing seeds. The amplitude of the fluctuation between the clamping rod head, the wave head, and the base is adapted to the curvature between the three. The connecting rod of the clamping head is placed in the concave part of the seed picking hole, and the clamping head protrudes outside the seed picking hole. The seed picking box covers the torsion spring and is connected to the two On a support ring; the ratchet is circular, with a notch groove recessed on the outer circumference of the ratchet, and a locking protrusion protruding on the inner ring of the ratchet to match the groove on the moving plate; on the inner wall of the seed-taking clamping plate in the middle, there are pawl recesses for placing the pawl and spring recesses for placing the elastic spring. When the ratchet is placed in the inner hole at the center of the seed-taking clamping plate, one end of the pawl is placed in the pawl recess, and the other end is pressed against the notch groove, while the spring is placed in the spring recess and presses against the pawl, thus ensuring that the seed-taking clamping plate stops rotating when the moving plate reverses.

[0005] The optimized design incorporates an inwardly formed annular weight-reducing groove between the two support rings. The seed collection box has protruding connecting ears on both sides, each with a connecting hole adapted to a screw hole. The seed collection box body also has connecting holes adapted to screw holes.

[0006] Beneficial effects: This invention solves the problem of low seeding accuracy in traditional hole-type and spoon-type hill-seeders. It also solves the problems of non-adjustable plant spacing and easy inversion / empty rotation damage in common clamp-type hill-seeders on the market. This clamp-type hill-seeder not only has high seeding accuracy and saves seeds, but it is also seed-insensitive, easily and precisely picking up, preventing missed seeds and sowing even untreated irregular seeds. This clamp-type hill-seeder has strong versatility. Furthermore, this invention adaptively integrates the ratchet and seed-picking clamp, saving space and reducing the overall weight of the hill-seeder. It also ensures that the core component, the seed-picking clamp, does not invert or reverse when the rotating disc is idle, preventing damage and greatly reducing costs. It is worthy of widespread promotion. Attached Figure Description

[0007] Appendix Figure 1 This is an exploded view of the overall structure of the present invention; attached. Figure 2 A side view of the overall structure; attached Figure 3 Exploded view of the seed-collecting clamp; attached. Figure 4 A diagram showing the positional relationship between the ratchet and the seed-collecting clamp; attached. Figure 5 This is a schematic diagram of the main structure of the ratchet; attached. Figure 6 A schematic diagram of the main structure of the seed-collecting clamp; attached. Figure 7 For the appendix Figure 6 AA section view; attached Figure 8 Rear view of the seed-retrieving clamp; attached Figure 9 Main view diagram of the drive chip; attached Figure 10 This is an assembly diagram of the clamping rod assembly; attached. Figure 11 A reference diagram showing the usage status of the clamping rod assembly and seed collection box; attached. Figure 12 A schematic diagram of the seed collection box from the front; attached. Figure 13 This is a schematic diagram of the main structure of the duckbill assembly. Detailed Implementation

[0008] Example: A single-pressure sliding hill-planting device with adjustable plant spacing, as shown in the attached document. Figure 1-12As shown, from left to right, the rotating shaft 1, fixed plate 2, ratchet 3, seed-collecting clamp 4, seed-separating plate 6, duckbill assembly 7, moving plate 8, and pressure plate 5 are concentrically and coaxially connected together. All of the above components are existing technologies, and their connection methods and seed-collecting actions and methods are publicly disclosed. However, the structural design of the seed-collecting clamp 4 and the ratchet 3 are novel designs and are the key points of this patent application. The seed-collecting clamp 4 includes a seed-collecting seat 41, several independent clamping rod assemblies, and several independent seed-collecting boxes 42 and a drive core plate 45 adapted to the clamping rod assemblies. In existing technologies, the clamping rod assemblies are not independently designed but connected end-to-end, resulting in the drawback that if one fails, the entire seeder must be replaced. The seed-collecting seat 41 has several protruding seed-collecting heads 40 evenly distributed around its circumference. The seed-collecting clamp 4 has at least two support rings inside, namely, outer support rings 48. The inner support ring 49 and the two support rings are provided with screw holes 47 for connecting the seed collection box 42; the clamping rod assembly includes a clamp head 43, a torsion spring 46 and a clamping rod 44. The clamping rod 44 is composed of a clamping rod head with a certain curvature at the front and a clamping rod tube with an insertion hole at the rear. The torsion spring 46 is sleeved on the outside of the clamping rod tube. The clamp head 43 is composed of a wave head with a certain curvature at the front and a connecting rod connecting the wave head. The connecting rod is inserted into the clamping rod tube. The clamping rod head and the wave head are in opposite directions. The driving core disk 45 is built into the inner hole in the center of the seed collection clamping disk 4. The center part of the driving core disk 45 protrudes outward to form a boss ring, and the protrusion... The base of the platform ring is arranged in two arc-shaped steps, namely the upper step 450 and the lower step 451. The clamping rod head rests on the base formed by the upper step 450 and the lower step 451, and fluctuates with the upper step 450 and the lower step 451, which in turn causes the wave head to fluctuate, thereby performing the action of picking up and releasing seeds. The amplitude of the fluctuation between the clamping rod head, the wave head and the base is adapted to the curvature between the three. The connecting rod of the clamping head is placed in the concave part of the seed picking head 40, and the clamping head 43 protrudes outside the seed picking head 40. The seed picking box 42 covers the torsion spring 46 and is connected to the two support rings. The ratchet 3 is annular, with a recessed notch 30 on the outer circumference and a protruding locking protrusion 31 on the inner ring that corresponds to the groove on the moving disc 8 (the groove on the moving disc 8 is existing technology). On the inner wall of the seed-collecting clamp 4, a pawl recess 90 for holding the pawl 9 and a spring recess 100 for holding the elastic spring 10 protrude outwards. When the ratchet 3 is inserted into the inner hole at the center of the seed-collecting clamp 4, one end of the pawl 9 is placed in the pawl recess 90, and the other end rests against the notch 30, while the spring 10 is placed in the spring recess 100 and presses against the pawl 9, thus ensuring that the seed-collecting clamp 4 stops rotating when the moving disc 8 reverses. An annular weight-reducing groove is formed inwards between the two support rings. The seed-collecting box 42 has protruding connecting ears 420 on both sides, with connecting holes 421 corresponding to the screw holes 47 on the connecting ears 420.The seed collection box 42 body is also provided with a connection hole 421 that is compatible with the screw hole 47.

[0009] Further design features a seed-collecting base 41 with several equally spaced channels. The front ends of these channels extend to engage with the rods of the clamps 43. The front ends of the channels are smoothly transitioned slopes on both sides, which can shield the rods of the clamps and prevent seeds from getting stuck. The clamps 43 of the seed-collecting clamping plate 4 are tangentially engaged with the spacer 6. Under the action of the drive core plate 45, the clamps 43 have two angle states: the first state is an open state, used for seed collection; the second state is a clamped state under the action of a torsion spring. In this state, the clamps 43 and the spacer 6 form a three-sided closed space, clamping the seeds and driving them to the notch of the spacer, thus transferring the seeds from the seed storage chamber into the seed delivery chamber. The spacer 6 is located between the seed-collecting clamping plate 4 and the duckbill assembly 7, separating the two seed chambers.

[0010] Further explanation is provided in the attached document. Figure 13 As shown, the duckbill assembly 7 includes components such as a moving spring 70, a duckbill 71, a fixed duckbill 72, a hinge assembly 73, and a seed guide groove 74. The duckbill assembly 7 is fixed in a circumferentially divided groove on the moving plate 8. The moving plate 8 and the pressure plate 5 have several continuous and equally divided holes, which can ensure that no matter how the plant spacing changes, there are corresponding holes to install fixing bolts to connect the moving plate and the pressure plate.

Claims

1. A single-pressure sliding type seed drill with adjustable plant spacing, which is concentrically and coaxially connected from left to right by a rotating shaft (1), a fixed plate (2), a ratchet (3), a seed-taking clamping plate (4), a seed-spacing plate (6), a duckbill assembly (7), a moving plate (8) and a pressure plate (5), and is characterized by: The seed taking chuck (4) includes a seed taking seat (41), a plurality of independent clamping rod assemblies and a plurality of independent seed taking boxes (42) and a driving core disk (45) adapted to the clamping rod assembly. A plurality of outwardly protruding seed taking nests (40) are evenly distributed on the circumference of the seed taking seat (41). At least two support rings are formed inside the seed taking chuck (4), namely an outer support ring (48) and an inner support ring (49). The two support rings are provided with screw holes (47) for connecting the seed taking boxes (42); the clamping rod assembly includes a clamping head (43), a torsion spring (46) and a clamping rod (44). The clamping rod (44) is composed of a head with a The clamping rod head is composed of a curved clamping rod head and a clamping rod tube with a plug hole at the rear, the torsion spring (46) is sleeved on the outside of the clamping rod tube, the clamping head (43) is composed of a wave head with a curved front end and a connecting rod connecting the wave head, the connecting rod is inserted into the clamping rod tube, the clamping rod head and the wave head are in opposite directions, the driving core disk (45) is built into the inner hole of the center of the seeding clamping disk (4), the center of the driving core disk (45) is convex to form a boss ring, and the base of the boss ring is arranged in two curved steps, namely the upper step (450) and the lower step (451), the clamping rod head is overlapped on the upper step (450) and the lower step ( 451), and with the high or low fluctuations of the upper step (450) and the lower step (451), the wave head is driven to fluctuate low or high accordingly, thereby taking and releasing seeds, wherein the amplitude of the fluctuations between the clamping rod head, the wave head and the base is adapted to the arc between the three; the connecting rod of the clamping head is placed in the concave of the seed taking nest (40), and the clamping head (43) protrudes outside the seed taking nest (40), the seed taking box (42) wraps the torsion spring (46) and is connected to the two support rings; the ratchet (3) is in a circular ring shape, and a notch groove (3) is provided on the outer circumference of the ratchet. 0), a cam (31) adapted to the groove on the movable disc (8) is provided on the inner ring of the ratchet; a pawl socket (90) for placing the pawl (9) and a flat spring socket (100) for placing the elastic flat spring (10) are provided on the inner wall of the middle part of the seed taking chuck (4). When the ratchet (3) is built into the inner hole at the center of the seed taking chuck (4), one end of the pawl (9) is placed in the pawl socket (90) and the other end is pressed against the notch groove (30), and the flat spring (10) is placed in the flat spring socket (100) and pressed on the pawl (9), thereby ensuring that when the movable disc (8) is reversed, the seed taking chuck (4) stops rotating.

2. The single-slide type seed drill with adjustable plant spacing according to claim 1, characterized in that: An annular weight-reducing groove is formed inwardly between the two support rings.

3. A single-slide type seed drill with adjustable plant spacing according to claim 1 or 2, characterized in that: The seed box (42) is provided with protruding connecting ears (420) on both sides, and the connecting ears (420) are provided with connecting holes (421) adapted to the screw holes (47).

4. The single-slide type seed drill with adjustable plant spacing according to claim 3, characterized in that: The seed box (42) body is also provided with a connection hole (421) adapted to the screw hole (47).

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