Precise drill seeder

Abstract

The invention belongs to the technical field of drill planters, and discloses a precision drill planter which comprises a rotary cultivator body, two connecting frames symmetrically arranged on the two sides of the outer portion of the rotary cultivator body, a rotary blade arranged on one side of the bottom of the rotary cultivator body and a rotary blade arranged on the other side of the rotary cultivator body. The two supporting frames are fixed to the top of the connecting frame, and the supporting frames are arranged on the side away from the rotary cultivator body; the appropriate pressure adjusting assembly is located on one side of the rotary cultivator body and used for compacting and covering soil on the sown seeds. The first hydraulic cylinder drives the hinge seat to move, the pressing wheel, the press wheel and the connecting shaft are lifted, the equipment can dynamically match the positive pressing force of the press wheel according to the soil moisture content, and the soil hardening risk of high-humidity clay land is remarkably reduced, so that the equipment is suitable for the seeding requirements and the soil moisture conservation effect of different wet clay lands; the seedling emergence quality of the seeds relative to different wet clay lands is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of strip seeding technology, and particularly relates to a precision strip seeding machine. Background Technology

[0002] A row seeder is an agricultural machine that uses traction as power to sow seeds in rows. It is generally equipped with a seed box, a seed metering mechanism, a seed guiding mechanism, a furrowing mechanism, and a press wheel on its frame. The drive wheel of the row seeder rotates and moves forward, and through the transmission mechanism, the seeds in the seed box are discharged from the seed metering mechanism to the seed guiding mechanism. At the same time, as the row seeder moves forward, the furrowing mechanism opens a V-shaped seed furrow in the soil, and the seeds fall into the seed furrow along the seed guiding mechanism. The press wheel then compacts the soil, completing the row sowing operation.

[0003] However, in the existing row seeders, the overall positions of the grooving and furrowing mechanism, soil extraction mechanism, and pressing wheel are fixed during use. When sowing in wet clay soil, the soil has strong adhesion and high resistance, and the fixed pressing wheel cannot provide sufficient vertical downward pressure, resulting in insufficient compaction of the soil covering the seedbed. This leads to poor contact between the seeds and the soil, which will affect the growth of the seeds. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to address the problem that, in existing technologies, when sowing on wet clay soil, the fixed-position compaction rollers cannot provide sufficient vertical downward pressure, resulting in insufficient soil compaction above the seedbed and thus affecting seed growth. Therefore, this invention proposes a precision strip seeder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A precision strip seeder includes a rotary tiller body, wherein a rotary tiller blade is disposed on one side of the bottom of the rotary tiller body, and further includes: Two connecting frames are symmetrically arranged on both sides of the outside of the rotary tiller body; Two support frames are fixed to the top of the connecting frame, and the support frames are positioned on the side away from the rotary tiller body; The pressure adjustment component, located on one side of the rotary tiller body, is used to compact and cover the soil on the seeds after sowing. The grooving unit, located below the pressure adjustment component, is used to create furrows in the soil after rotary tillage so that seeds can be sown. The soil sampling unit, located below the pressure regulating component, is used to cover the seeds with soil after sowing. The gearbox assembly unit, located inside the rotary tiller body, provides a drive source for the pressure adjustment component to rotate, compact, and cover the soil on the seeds after sowing. The connecting rod hydraulic unit is located inside the rotary tiller body and is positioned on the outer periphery of the gearbox assembly unit.

[0006] As a further description of the above technical solution: The fixed frame is hinged to the support frame at one end, and the cross-sectional shape of the fixed frame is set to L-shape.

[0007] As a further description of the above technical solution: The pressure regulating component includes: The movable seat is composed of a first arc-shaped seat and a second arc-shaped seat, with the first arc-shaped seat and the second arc-shaped seat rotatably connected at opposite ends, and the end of the first arc-shaped seat away from the second arc-shaped seat rotatably connected inside the support frame; Two sets of mounting bases are symmetrically arranged on both sides of the connecting frame. Each set of mounting bases consists of two mounting bases, and the opposite side of the two mounting bases is fixedly connected to the outer wall of the connecting frame. Two first hydraulic cylinders are symmetrically arranged on both sides of the connecting frame, and one end of the first hydraulic cylinder is hinged inside the mounting base; The hinge seat has a triangular cross-sectional shape, and one end of the hinge seat is hinged to one end of the output shaft of the first hydraulic cylinder. The drive unit consists of two sets of transmission chains, which are located inside the first arc-shaped seat and the second arc-shaped seat, respectively, and are connected by a rotating shaft.

[0008] As a further description of the above technical solution: The pressure regulating component also includes: A connecting seat, one end of which is hinged to a hinge seat, wherein the connecting seat is set at an angle upward with respect to the hinge seat and at an angle towards the first hydraulic cylinder; The first fixed seat is hinged to the outer periphery of the connecting seat. The cross-sectional shape of the first fixed seat is set to concave, and the bottom of the first fixed seat is fixedly connected to the top fixed frame or the movable seat.

[0009] As a further description of the above technical solution: The pressure regulating component also includes: The limiting shaft is hinged to the inside of the hinge seat on one side via a sleeve; The concave seat is fixedly connected to the outer wall of the connecting frame via a crossbeam, and one side of the concave seat is hinged to the limiting shaft; A limiting spring is sleeved on the outer circumference of the limiting shaft, and both sides of the limiting spring are fixedly connected to the concave seat and the sleeve, respectively. The second fixed seat is hinged to the outer periphery of the limiting shaft, and the side of the second fixed seat away from the limiting shaft is fixedly connected to the fixed frame or the second arc-shaped seat. The second fixed seat is configured to be concave.

[0010] As a further description of the above technical solution: The pressure regulating component also includes: The connecting shaft is rotatably connected inside the second arc-shaped seat and the fixed frame; The press wheel is sleeved on the outer circumference of the connecting shaft, and the press wheel is located at the center of the connecting shaft; Two pressure rollers are fitted onto the outer circumference of the connecting shaft, and the two pressure rollers are symmetrically arranged on both sides of the pressing roller; The connecting rod unit is located inside the rotary tiller body and is connected to the outer periphery of the connecting rod hydraulic unit.

[0011] As a further description of the above technical solution: The gearbox assembly unit includes: The main gearbox is located on the outer periphery of the connecting rod hydraulic unit and is fixed inside the rotary tiller body; The gearbox is located on one side of the main gearbox and is connected to the main gearbox via a fixed shaft and coupling. It is used to provide power to the grooving unit and the soil extraction unit. Two side plates are symmetrically arranged on the outer periphery of the main gearbox, and the two sides of the side plates are fixedly connected to the outer walls of the main gearbox and the driven gearbox, respectively.

[0012] As a further description of the above technical solution: The tray is located between the rotary tiller blades and the grooving unit, and one end of the tray is hinged inside the rotary tiller body; The second hydraulic cylinder has one end hinged to the bottom side inside the connecting rod unit via the first rectangular seat, and the other end of the second hydraulic cylinder is hinged to the support plate via the second rectangular seat.

[0013] As a further description of the above technical solution: The seed box is installed on the top of the rotary tiller body. The seed box has a seed storage trough and a fertilizer trough, and a main partition is set between the seed storage trough and the fertilizer trough. Multiple partitions are arranged in a linear array on both sides of the main partition, and the side of the partitions away from the main partition is fixedly connected to the inner wall of the seed box. The bottom side of the partition is provided with through holes to divide the seed storage trough and fertilizer trough inside the seed box into multiple spaces. The bottom of the fertilizer trough is connected to multiple conveying pipes, and the top of the conveying pipes is provided with a switch valve and a metering valve.

[0014] As a further description of the above technical solution: A horizontal seat is fixed to one side of the connecting rod unit and is located between the grooving unit and the soil sampling unit. The horizontal seat is fixedly connected to the outer wall of the connecting rod unit. Multiple seeding tubes are installed on one side of the rotary tiller body, and the seeding tubes are located between the pressing unit and the soil taking unit. The top of the seeding tubes is connected to the bottom of the seed storage trough through a precision seed metering device. A protective cover is fixed to the outer periphery of the horizontal seat and is set between the seeding tube and the soil sampling unit. The cross-sectional shape of the protective cover is set to L-shape, and a conical cover is fixedly connected to one side of the protective cover. The conical cover is located on the outer periphery of the soil sampling unit and is set obliquely downward with respect to the soil sampling unit. The soil sampling unit adopts a rotary tillage mechanism, and the rotary tillage mechanism inside the soil sampling unit is arranged crosswise with the rotary tillage blade.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, the hinge seat is moved by the first hydraulic cylinder, which adjusts the position between the limiting shaft and the second fixed seat. This allows for adjustment of the angle between the first arc-shaped seat and the second arc-shaped seat, thereby lifting the pressure roller, the compaction roller, and the connecting shaft. This adjusts the pressure of the compaction roller on the soil, increasing the pressure in wet soil and decreasing it in dry soil to maintain appropriate compaction. This equipment can dynamically match the positive pressure of the compaction roller according to the soil moisture content, significantly reducing the risk of soil compaction in highly moist clay soils. This makes the equipment suitable for the sowing needs and moisture retention of different wet clay soils, greatly improving the germination quality of seeds in different wet clay soils.

[0016] 2. In this invention, the second hydraulic cylinder drives the pallet to rotate, thereby adjusting the position of the grooving unit and the soil-taking unit relative to the ground surface. When the front end of the rotary tiller body sinks in the wet clay soil of the paddy field, the amount of sinking of the rotary tiller body in the wet clay soil is effectively compensated, ensuring that the grooving depth of the grooving unit is always consistent with the preset target depth. This equipment significantly isolates the influence of the rotary tiller body's posture changes on the rear-end sowing operation, fundamentally ensuring the consistency of sowing depth and sowing quality, and greatly improving the equipment's adaptability, operational stability and applicability in complex wet clay paddy field conditions.

[0017] 3. In this invention, the built-in integrated gearbox assembly is fully embedded in the internal structure of the rotary tiller body, which significantly improves the internal space efficiency and structural compactness of the equipment. Moreover, the front-mounted design of the integrated gearbox assembly effectively realizes the strategic forward shift of the machine's center of gravity, significantly reducing the pressure and interference on the rear-end sowing unit during equipment operation, ensuring the stability and quality of the rear-end sowing operation, thereby directly improving sowing accuracy, seedling emergence rate and operation quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 In this invention Figure 1 A magnified schematic diagram of the structure at point A; Figure 3 In this invention Figure 1 A magnified schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the overall three-dimensional structure from another perspective in this invention; Figure 5 This is a schematic diagram of the overall bottom view of the present invention; Figure 6 This is a schematic diagram of the overall side view structure of the present invention; Figure 7 This is a schematic diagram of the overall main structure of the present invention.

[0019] Legend: 1. Rotary tiller body; 2. Seeding box; 3. Seed storage trough; 4. Fertilizer trough; 5. Rotary tiller blades; 6. Pressure adjustment component; 601. Mounting base; 602. First hydraulic cylinder; 603. Hinge seat; 604. Connecting seat; 605. First fixed seat; 606. Pressure roller; 607. Press roller; 608. Linkage unit; 609. Second fixed seat; 610. Movable seat; 611. Limit spring; 7. Connecting frame; 8. Support frame; 9. Fixed frame; 10. Seeding tube; 11. Pressing trough unit; 12. Soil extraction unit; 13. Main gearbox; 14. Side plate; 15. Driven gearbox; 16. Support plate; 17. Linkage hydraulic unit; 18. Cross seat; 19. Protective cover. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-7 The present invention provides a technical solution: a precision strip seeder, including a rotary tiller body 1, a rotary tiller blade 5 disposed on one side of the bottom of the rotary tiller body 1, and further comprising: Two connecting frames 7 are symmetrically arranged on both sides of the outside of the rotary tiller body 1; Two support frames 8 are fixed to the top of the connecting frame 7, and the support frames 8 are located on the side away from the rotary tiller body 1; The appropriate pressure adjustment component 6 is located on one side of the rotary tiller body 1 and is used to compact and cover the soil on the seeds after sowing. The grooving unit 11, located below the pressure regulating component 6, is used to create furrows in the soil after rotary tillage so that seeds can be sown. The soil sampling unit 12, located below the pressure regulating component 6, is used to cover the seeds with soil after sowing. The gearbox assembly unit, located inside the rotary tiller body 1, is used to provide a drive source for the pressure adjustment component 6 to rotate, compact, and cover the soil on the seeds after sowing. The connecting rod hydraulic unit 17 is located inside the rotary tiller body 1, and the connecting rod hydraulic unit 17 is arranged on the outer periphery of the gearbox assembly unit; The fixing frame 9 is hinged at one end to the support frame 8, and the cross-sectional shape of the fixing frame 9 is set to L-shape; The pressure regulating component 6 includes: The movable seat 610 is composed of a first arc-shaped seat and a second arc-shaped seat, and the first arc-shaped seat and the second arc-shaped seat are rotatably connected at opposite ends, and the end of the first arc-shaped seat away from the second arc-shaped seat is rotatably connected inside the support frame 8. Two sets of mounting bases 601 are symmetrically arranged on both sides of the connecting frame 7. Each set of mounting bases 601 consists of two mounting bases 601, and the opposite side of the two mounting bases 601 is fixedly connected to the outer wall of the connecting frame 7. Two first hydraulic cylinders 602 are symmetrically arranged on both sides of the connecting frame 7, and one end of the first hydraulic cylinder 602 is hinged inside the mounting base 601. The hinge seat 603 has a triangular cross-sectional shape, and one end of the hinge seat 603 is hinged to one end of the output shaft of the first hydraulic cylinder 602. The drive unit consists of two sets of transmission chains, which are located inside the first arc-shaped seat and the second arc-shaped seat, respectively, and are connected by a rotating shaft. The connecting seat 604 is hinged at one end to the hinge seat 603. The connecting seat 604 is set to be inclined upward with respect to the hinge seat 603, and the connecting seat 604 is inclined towards the first hydraulic cylinder 602. The first fixed seat 605 is hinged to the outer periphery of the connecting seat 604. The cross-sectional shape of the first fixed seat 605 is set to concave, and the bottom of the first fixed seat 605 is fixedly connected to the top fixed bracket 9 or the movable seat 610. The limiting shaft is hinged to the inside of the hinge seat 603 on one side via a sleeve; The concave seat is fixedly connected to the outer wall of the connecting frame 7 via a crossbeam, and one side of the concave seat is hinged to the limiting shaft; The limiting spring 611 is sleeved on the outer periphery of the limiting shaft, and the two sides of the limiting spring 611 are fixedly connected to the concave seat and the sleeve, respectively. The second fixed seat 609 is hinged to the outer periphery of the limiting shaft, and the side of the second fixed seat 609 away from the limiting shaft is fixedly connected to the fixed frame 9 or the second arc-shaped seat. The second fixed seat 609 is configured to be concave. The connecting shaft is rotatably connected inside the second arc-shaped seat and the fixed bracket 9; The press wheel 607 is sleeved on the outer circumference of the connecting shaft, and the press wheel 607 is located at the center of the connecting shaft; Two pressure rollers 606 are sleeved on the outer periphery of the connecting shaft, and the two pressure rollers 606 are symmetrically arranged on both sides of the pressing roller 607; The connecting rod unit 608 is located inside the rotary tiller body 1 and is connected to the outer periphery of the connecting rod hydraulic unit 17.

[0022] Detailed Implementation: First, the worker pours fertilizer and wheat seeds into the fertilizer trough 4 and seed storage trough 3 respectively. Then, the worker moves the rotary tiller body 1 into the paddy field and moves it within the field. During this movement, the fertilizer is first quantitatively delivered to the soil inside the paddy field through the delivery pipe. Then, the rotary tiller blades 5 till the paddy field soil. The first hydraulic cylinder 602 can be activated as needed, driving the hinge seat 603 to move, thus adjusting the position between the limit shaft and the second fixed seat 609. The adjustment allows for adjustment of the operating angle between the first and second arc-shaped seats, thereby raising the pressure roller 606, the pressing roller 607, and the connecting shaft. This adjusts the pressure of the pressing roller 607 on the soil, overcoming the limitations of the traditional fixed pressure of the pressing roller 607. The positive pressure of the pressing roller 607 can be dynamically matched according to the soil moisture content, significantly reducing the risk of soil compaction in highly moist clay soils. This makes the equipment suitable for the sowing needs and moisture retention of different moist clay soils, greatly improving the germination quality of seeds in different moist clay soils.

[0023] The gearbox assembly unit includes: The main gearbox 13 is located on the outer periphery of the connecting rod hydraulic unit 17, and the main gearbox 13 is fixed inside the rotary tiller body 1. The gearbox 15 is located on one side of the main gearbox 13 and is connected to the main gearbox 13 via a fixed shaft and a coupling. It is used to provide power to the grooving unit 11 and the soil extraction unit. Two side plates 14 are symmetrically arranged on the outer periphery of the main gearbox 13, and the two sides of the side plates 14 are fixedly connected to the outer walls of the main gearbox 13 and the driven gearbox 15, respectively.

[0024] Detailed implementation: This equipment adopts a built-in integrated gearbox assembly design, which is completely embedded in the internal structure of the rotary tiller body 1, significantly improving the internal space efficiency and structural compactness of the equipment. The front-mounted design of the integrated gearbox assembly effectively realizes the strategic forward shift of the machine's center of gravity, significantly reducing the pressure and interference on the rear-end sowing unit during equipment operation, ensuring the stability and quality of the rear-end sowing operation, thereby directly improving sowing accuracy, seedling emergence rate and operation quality. The main gearbox 13 and the driven gearbox 15 can adopt a split shaft or an integrated shaft to form an integrated independent body. The main gearbox 13 and the driven gearbox 15 can be connected by two side plates 14 or by welding as an integral connection.

[0025] The tray 16 is disposed between the rotary tiller blade 5 and the pressing unit 11, and one end of the tray 16 is hinged inside the rotary tiller body 1. The second hydraulic cylinder has one end hinged to the bottom side inside the connecting rod unit 608 via the first rectangular seat, and the other end of the second hydraulic cylinder is hinged to the support plate 16 via the second rectangular seat. Seeding box 2 is installed on the top of rotary tiller body 1. Seeding box 2 has a seed storage trough 3 and a fertilizer trough 4 respectively, and a main partition is set between the seed storage trough 3 and the fertilizer trough 4. Multiple partitions are linearly arrayed on both sides of the main partition, and the side of the partitions away from the main partition is fixedly connected to the inner wall of the seed box 2. The bottom side of the partition is provided with through holes to divide the seed storage trough 3 and fertilizer trough 4 inside the seed box 2 into multiple spaces. The bottom of the fertilizer trough 4 is connected to multiple conveying pipes, and the top of the conveying pipes is equipped with a switch valve and a metering valve. The horizontal seat 18 is fixed to one side of the connecting rod unit 608, and the horizontal seat 18 is located between the pressure grooving unit 11 and the soil sampling unit 12. The horizontal seat 18 is fixedly connected to the outer wall of the connecting rod unit 608. Multiple seeding tubes 10 are installed on one side of the rotary tiller body 1, and the seeding tubes 10 are located between the pressing unit 11 and the soil taking unit 12. The top of the seeding tubes 10 is connected to the bottom of the seed storage trough 3 through a precision seed metering device. The protective cover 19 is fixed to the outer periphery of the horizontal seat 18 and is positioned between the seeding tube 10 and the soil taking unit 12. The protective cover 19 has an L-shaped cross-section and a conical cover is fixedly connected to one side of the protective cover 19. The conical cover is located on the outer periphery of the soil taking unit 12 and is positioned obliquely downward with respect to the soil taking unit 12. The soil taking unit 12 adopts a rotary tillage mechanism, and the rotary tillage mechanism inside the soil taking unit 12 is arranged intersecting with the rotary tillage blade 5.

[0026] Detailed Implementation: As the rotary tiller body 1 moves, the pallet 16 flattens the soil in the paddy field after rotary tillage. During this process, the second hydraulic cylinder can be activated as needed to rotate the pallet 16, thereby adjusting the position of the grooving unit 11 and the soil-collecting unit 12 relative to the ground surface. When the front end of the rotary tiller body 1 sinks in the wet clay soil of the paddy field, this effectively compensates for the amount of sinking, ensuring that the grooving depth of the grooving unit 11 is always consistent with the preset target depth. This equipment significantly isolates the impact of the rotary tiller body 1's posture changes on the rear-end sowing operation, fundamentally ensuring the consistency of sowing depth and sowing quality, and greatly improving the equipment's adaptability, operational stability, and applicability in complex wet clay paddy field conditions. Meanwhile, the grooving unit 11, during its movement, presses down on the flattened paddy field soil. The seed trough creates an ideal seedbed for the seeds. The wheat seeds inside the seed storage trough 3 are precisely guided to the designated position inside the seed trough by the precision seed metering device and the seeding tube 10. Then, the rotary tillage mechanism inside the soil taking unit 12 actively grabs and breaks up the soil in the seed strip between the two seed troughs, and evenly and finely sprinkles it over the seeds in the seed trough to automatically cover the seeds after sowing. This helps to improve the automation effect of the equipment during use. The press roller 607 will moderately compact the soil after covering, ensuring close contact between the seeds and the soil, optimizing soil moisture, and creating the best microenvironment for seed germination. This greatly improves the automation, precision and intelligence of the sowing operation, ensuring high-quality sowing in one go. The control system and hydraulic system involved in this equipment are known and disclosed technologies known to those skilled in the art, so they are not described in detail in this application.

[0027] Working principle: When in use, the operator first pours fertilizer and wheat seeds into the fertilizer trough 4 and seed storage trough 3 respectively. Then, the operator moves the rotary tiller body 1 into the paddy field and moves it within the paddy field. During the movement, the fertilizer is first quantitatively delivered into the soil inside the paddy field through the delivery pipeline. Then, the rotary tiller blade 5 tills the paddy field soil. As the rotary tiller body 1 moves, the pallet 16 will scrape the tilled paddy field soil. During this process, the second hydraulic cylinder can be activated as needed to drive the pallet 16 to rotate, thereby adjusting the position of the grooving unit 11 and the soil taking unit 12 relative to the ground surface. This effectively compensates for the sinking of the rotary tiller body 1 in the wet clay soil and ensures that the grooving depth of the grooving unit 11 is always consistent with the preset target depth. During its movement, the pressing unit 11 presses out a sowing trough on the leveled paddy field soil. The wheat seeds inside the seed storage trough 3 are accurately guided to the designated position inside the sowing trough by the precision seed metering device and the sowing tube 10. Then, the rotary tillage mechanism inside the soil taking unit 12 actively grabs and breaks up the soil in the seed strip between the two sowing troughs and evenly and finely sprinkles it over the seeds in the sowing trough. The pressing wheel 607 moderately compacts the soil after covering it, creating the best microenvironment for seed germination. During this process, the first hydraulic cylinder 602 can be activated as needed. The first hydraulic cylinder 602 drives the hinge seat 603 to move, which can adjust the working position between the limit shaft and the second fixed seat 609. This allows for adjustment of the working angle between the first arc-shaped seat and the second arc-shaped seat, thereby lifting the pressure roller 606, the pressing roller 607, and the connecting shaft. This allows for adjustment of the pressure of the pressing roller 607 on the soil. This equipment uses a built-in integrated gearbox assembly design, which is completely embedded in the internal structure of the rotary tiller body 1. This significantly improves the internal space efficiency and structural compactness of the equipment. Furthermore, the front-mounted design of the integrated gearbox assembly significantly reduces the pressure and interference on the rear seeding unit during equipment operation, making it convenient to use.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A precision strip seeder, comprising a rotary tiller body (1), wherein a rotary tiller blade (5) is provided on one side of the bottom of the rotary tiller body (1), characterized in that, Also includes: Two connecting frames (7) are symmetrically arranged on both sides of the outside of the rotary tiller body (1); Two support frames (8) are fixed to the top of the connecting frame (7), and the support frames (8) are located on the side away from the rotary tiller body (1); The appropriate pressure adjustment component (6) is located on one side of the rotary tiller body (1) and is used to compact and cover the soil on the seeds after sowing; The grooving unit (11), located below the pressure regulating component (6), is used to create furrows in the soil after rotary tillage so that seeds can be sown. The soil sampling unit (12), located below the pressure regulating component (6), is used to cover the seeds with soil after sowing; The gearbox assembly unit, located inside the rotary tiller body (1), is used to provide a drive source for the pressure adjustment component (6) to rotate, compact, and cover the soil on the seeds after sowing. The connecting rod hydraulic unit (17) is located inside the rotary tiller body (1), and the connecting rod hydraulic unit (17) is located on the outer periphery of the gearbox assembly unit.

2. The precision strip seeder according to claim 1, characterized in that, Also includes: The fixing frame (9) is hinged at one end to the support frame (8), and the cross-sectional shape of the fixing frame (9) is set to L-shape.

3. A precision strip seeder according to claim 2, characterized in that, The pressure regulating component (6) includes: The movable seat (610) is composed of a first arc-shaped seat and a second arc-shaped seat, and the first arc-shaped seat and the second arc-shaped seat are rotatably connected at opposite ends, and the end of the first arc-shaped seat away from the second arc-shaped seat is rotatably connected inside the support frame (8); Two sets of mounting bases (601) are symmetrically arranged on both sides of the connecting frame (7). Each set of mounting bases (601) consists of two mounting bases (601), and the opposite side of the two mounting bases (601) is fixedly connected to the outer wall of the connecting frame (7). Two first hydraulic cylinders (602) are symmetrically arranged on both sides of the connecting frame (7), and one end of the first hydraulic cylinder (602) is hinged inside the mounting base (601); The hinge seat (603) has a triangular cross-sectional shape, and one end of the hinge seat (603) is hinged to one end of the output shaft of the first hydraulic cylinder (602); The drive unit consists of two sets of transmission chains, which are located inside the first arc-shaped seat and the second arc-shaped seat, respectively, and are connected by a rotating shaft.

4. A precision strip seeder according to claim 3, characterized in that, The pressure regulating component (6) further includes: The connecting seat (604) is hinged at one end to the hinge seat (603). The connecting seat (604) is set to be obliquely upward with respect to the hinge seat (603), and the connecting seat (604) is obliquely towards the first hydraulic cylinder (602). The first fixed seat (605) is hinged to the outer periphery of the connecting seat (604). The cross-sectional shape of the first fixed seat (605) is set to concave, and the bottom of the first fixed seat (605) is fixedly connected to the top fixed bracket (9) or the movable seat (610).

5. A precision strip seeder according to claim 4, characterized in that, The pressure regulating component (6) further includes: The limiting shaft is hinged to the inside of the hinge seat (603) on one side through a sleeve; The concave seat is fixedly connected to the outer wall of the connecting frame (7) via a crossbeam, and one side of the concave seat is hinged to the limiting shaft; The limiting spring (611) is sleeved on the outer periphery of the limiting shaft, and the two sides of the limiting spring (611) are fixedly connected to the concave seat and the sleeve, respectively. The second fixed seat (609) is hinged to the outer periphery of the limiting shaft, and the side of the second fixed seat (609) away from the limiting shaft is fixedly connected to the fixed frame (9) or the second arc-shaped seat. The second fixed seat (609) is set to be concave.

6. A precision strip seeder according to claim 5, characterized in that, The pressure regulating component (6) further includes: The connecting shaft is rotatably connected inside the second arc-shaped seat and the fixed frame (9); The press wheel (607) is sleeved on the outer circumference of the connecting shaft, and the press wheel (607) is located at the center of the connecting shaft; Two pressure rollers (606) are sleeved on the outer periphery of the connecting shaft, and the two pressure rollers (606) are symmetrically arranged on both sides of the pressing roller (607); The linkage unit (608) is located inside the rotary tiller body (1) and connected to the outer periphery of the linkage hydraulic unit (17).

7. A precision strip seeder according to claim 1, characterized in that, The gearbox assembly unit includes: The main gearbox (13) is located on the outer periphery of the connecting rod hydraulic unit (17), and the main gearbox (13) is fixed inside the rotary tiller body (1); The gearbox (15) is located on one side of the main gearbox (13) and is connected to the main gearbox (13) via a fixed shaft and a coupling to provide power to the grooving unit (11) and the soil extraction unit. Two side plates (14) are symmetrically arranged on the outer periphery of the main gearbox (13), and the two sides of the side plates (14) are fixedly connected to the outer walls of the main gearbox (13) and the slave gearbox (15), respectively.

8. A precision strip seeder according to claim 6, characterized in that, Also includes: The tray (16) is set between the rotary tiller blade (5) and the grooving unit (11), and one end of the tray (16) is hinged inside the rotary tiller body (1); The second hydraulic cylinder has one end hinged to the bottom side inside the connecting rod unit (608) via the first rectangular seat, and the other end of the second hydraulic cylinder is hinged to the support plate (16) via the second rectangular seat.

9. A precision strip seeder according to claim 8, characterized in that, Also includes: The seed box (2) is installed on the top of the rotary tiller body (1). The seed box (2) is provided with a seed storage trough (3) and a fertilizer trough (4) respectively, and a main partition is provided between the seed storage trough (3) and the fertilizer trough (4). Multiple partitions are arranged in a linear array on both sides of the main partition, and the side of the partitions away from the main partition is fixedly connected to the inner wall of the seed box (2). The bottom side of the partition is provided with through holes to divide the seed storage trough (3) and fertilizer trough (4) inside the seed box (2) into multiple spaces. The bottom of the fertilizer trough (4) is connected to multiple conveying pipes, and the top of the conveying pipes is provided with a switch valve and a metering valve.

10. A precision strip seeder according to claim 9, characterized in that, Also includes: A horizontal seat (18) is fixed to one side of the connecting rod unit (608), and the horizontal seat (18) is located between the pressure groove unit (11) and the soil extraction unit (12). The horizontal seat (18) is fixedly connected to the outer wall of the connecting rod unit (608). Multiple seeding tubes (10) are installed on one side of the rotary tiller body (1), and the seeding tubes (10) are located between the pressing unit (11) and the soil taking unit (12). The top of the seeding tubes (10) is connected to the bottom of the seed storage trough (3) through a precision seed metering device. The protective cover (19) is fixed to the outer periphery of the horizontal seat (18) and is set between the seeding tube (10) and the soil taking unit (12). The cross-sectional shape of the protective cover (19) is set to L-shape, and a conical cover is fixedly connected to one side of the protective cover (19). The conical cover is located on the outer periphery of the soil taking unit (12) and is set obliquely downward with respect to the soil taking unit (12). The soil taking unit (12) adopts a rotary tillage mechanism, and the rotary tillage mechanism inside the soil taking unit (12) is arranged crosswise with the rotary tillage blade (5).

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