Opposite row type intertillage weeding machine for hardened seedbed

Abstract

The row-aligning type intertillage weeding machine for the hardened seedbed is characterized in that the row-aligning type intertillage weeding machine comprises a suspension cross beam (4), a main beam (9) and a transverse moving oil cylinder (3), a suspension frame (5) is arranged on the suspension cross beam (4), an adjusting mechanism is arranged between the suspension cross beam (4) and the main beam (9), the adjusting mechanism comprises a swing arm beam (2) and the transverse moving oil cylinder (3), and the swing arm beam (2) and the transverse moving oil cylinder (3) are arranged on the suspension frame (5). One end of the swing arm beam (2) is hinged to the suspension cross beam (4), the other end of the swing arm beam (2) is hinged to the main beam (9), one end of the transverse moving oil cylinder (3) is hinged to the suspension cross beam (4), the other end of the transverse moving oil cylinder (3) is hinged to the swing arm beam (2), and the main beam (9) is further provided with an intertillage weeding single body (6).

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically relating to a row-type inter-row tillage and weeding machine for compacted seedbeds. Background Technology

[0002] In the arid Northwest region, low-yield farmland constitutes a large proportion, leading to a continuous decline in soil fertility. Long-term excessive fertilization and pesticide application, particularly the current practice of directly applying pesticides to the soil during land preparation to suppress weeds, has caused severe soil pollution, exacerbating soil degradation and compaction. To promote sustainable green agriculture, reduce pesticide use, and protect the soil environment, this application proposes a row-type weeding and cultivating machine for compacted seedbeds. This machine can simultaneously loosen the soil and remove weeds in a single operation. Furthermore, the machine can automatically align rows via hydraulic cylinder adjustment of the weeding components, facilitating operation. The hydraulic cylinder controls a four-bar linkage mechanism to adjust the position of the weeding components, preventing damage to seedlings during weed removal, improving weed control efficiency and soil aeration during the seedling stage, and breaking up soil compaction. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a row-type inter-row tillage and weeding machine for compacted seedbeds with a simple structure that can complete the loosening of soil and weeding in one operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A row-type weeding and cultivating machine for compacted seedbeds is characterized by comprising a suspension beam, a main beam, and a lateral movement cylinder. The suspension beam is equipped with a suspension frame, and an adjustment mechanism is provided between the suspension beam and the main beam. The adjustment mechanism includes a swing arm beam and a lateral movement cylinder. One end of the swing arm beam is hinged to the suspension beam, and the other end is hinged to the main beam. One end of the lateral movement cylinder is hinged to the suspension beam, and the other end is hinged to the swing arm beam. The main beam is also equipped with a single weeding and cultivating unit.

[0006] As an improvement, four swing arm beams are provided, with two beams in each group, respectively located on both sides of the suspension beam symmetrically, and two groups of transverse hydraulic cylinders are provided.

[0007] As an improvement, the suspension beam and the main beam are hinged together by a set of swing arm beams. The swing arm beams are rotated by the extension and retraction of the lateral movement cylinder, thereby controlling the lateral movement of the main beam and the weeding unit.

[0008] The suspension beam is provided with a cylinder seat plate, and one end of the transverse cylinder is hinged to the cylinder seat plate.

[0009] The swing arm beam is equipped with a hydraulic cylinder pin, and the other end of all the transverse hydraulic cylinders is hinged to the hydraulic cylinder pin.

[0010] To address the significant resistance caused by soil compaction, a set of hydraulic cylinders is used to adjust and balance the entire machine.

[0011] As an improvement, the single unit for weeding and cultivating includes a contouring base, an upper connecting rod, a lower connecting rod, a contouring spring, a contouring wheel, a contouring adjustment plate, a contouring unit beam, a weeding shovel, a weeding mechanism, and a soil loosening mechanism. The contouring base, upper connecting rod, lower connecting rod, and contouring adjustment plate form a four-bar linkage. The weeding mechanism and the weeding shovel are mounted on the contouring unit beam. The contouring base is fixedly connected to the folding frame, and the contouring unit beam is fixedly connected to the contouring adjustment plate. The weeding shovel and the weeding mechanism are connected to the contouring unit beam. The soil loosening mechanism includes a soil loosening frame, a toothed disc frame, a toothed disc, and soil loosening teeth. The soil loosening teeth are mounted on the outer edge of the toothed disc, and the toothed disc is mounted on the toothed disc frame and can rotate on the toothed disc frame. The toothed disc frame is mounted on the soil loosening frame.

[0012] As a further improvement, the soil loosening mechanism includes a fixed frame, an angle adjustment frame, and a connecting plate. The gear plate is mounted on the angle adjustment frame, and the angle adjustment frame is hinged to the fixed frame at the middle. A connecting plate is also provided between the angle adjustment frame and the fixed frame, and the connecting plate can adjust the included angle between the angle adjustment frame and the fixed frame.

[0013] The loosening tooth is arc-shaped with pointed ends. The outer arc surface cuts the soil, and the tooth disc is hinged to the tooth disc frame through a bearing seat.

[0014] When weeding during the seedling stage, the soil-loosening and weeding disc can be positioned at a certain angle to the direction of the machine's movement. The loosening teeth can be used to remove weeds between the plants without damaging the seedlings. The number of loosening teeth installed on the circumference can be adjusted according to the column spacing.

[0015] In this process, the seat plate is fixedly installed on the single frame, and the center of the seat plate is provided with a hinge hole; the angle adjustment plate is fixedly connected to the gear plate frame, and the angle adjustment plate is provided with multiple sets of mounting holes that are hinged to the center of the seat plate; the two ends of the seat plate and the angle adjustment plate are respectively hinged with connecting plates, and the connecting plates are provided with multiple sets of mounting holes. The appropriate mounting hole is selected according to the size of the adjustment angle.

[0016] As an improvement, the contouring seat is T-shaped, with two sets of threaded holes symmetrically arranged on the front protrusion and two sets of hinge holes on the right end. One set of hinge holes connects to the upper and lower connecting rods, and the other set connects to the folding frame. During installation, the front end of the contouring seat is aligned with the top of the folding frame. The main beam clamping plate is L-shaped, with one end hinged to the contouring seat and two sets of bolt holes in the middle. The main beam clamping plate is secured to the folding frame with mounting bolts. Due to the diverse planting patterns and numerous crop row spacings, the installation distance between the weeding and cultivating units needs to be adjusted according to the planting pattern to accommodate different row spacings. This clamping method facilitates quick adjustment of clamping and lateral position.

[0017] The front ends of the upper and lower connecting rods are hinged to the contouring seat, and the rear ends are hinged to the contouring adjustment plate. A contouring spring is installed between the upper and lower connecting rods. The upper connecting rod has multiple sets of contouring spring mounting holes from front to back. The contouring preload can be adjusted by changing the installation position of the contouring springs according to the hardness of the ground. The upper connecting rod is fishbone shaped because the preload increases towards the rear of the contouring spring; this shape is designed to protect the strength of the upper connecting rod. The contouring adjustment plate is connected to the contouring wheel by a threaded connection, facilitating adjustment of the contouring wheel's depth limit height.

[0018] The rear end of the contour adjustment plate is fixedly connected to the contour single beam. The contour single beam is divided into left and right groups. The contour single beam has multiple sets of weeding shovel mounting holes from front to back for installing the weeding shovel and weeding mechanism. The installation distance between the front and rear shovels can be adjusted according to the actual use.

[0019] The loosening tooth is arc-shaped with pointed ends. The outer arc surface cuts the soil, and the tooth disc is hinged to the tooth disc frame through a bearing seat.

[0020] To address the issue of weeding rollers failing to rotate and become inoperable when the soil is compacted and hard, a soil loosening disc is installed directly in front of the weeding rollers. This disc loosens the soil in the working area corresponding to the weeding rollers, breaking up the compacted and hard soil so that the roller teeth can better penetrate the soil.

[0021] Meanwhile, to cope with hard soil, a set of compression springs is set up, consisting of a spring rod, a compression spring, and a compression spring pivot pin. The compression spring pivot pin is hinged to the single frame, and the pivot pin has a spring rod mounting hole in the middle. While the spring rod slides flexibly up and down relative to the compression spring pivot pin, the compression spring pivot pin rotates relative to the single frame.

[0022] As an improvement, the weeding mechanism includes a mounting base, a lateral adjustment base, a height adjustment base, a longitudinal beam, a pivot base, a weeding finger disc, and a soil-entry toothed disc. The mounting base is fixedly installed on the contoured single beam. The lateral adjustment base can be adjusted in lateral position relative to the mounting base. The longitudinal beam can be adjusted in height relative to the height adjustment base. The bottom of the longitudinal beam is fixedly connected to the pivot base, and a pivot is installed in the pivot base. The pivot can rotate flexibly relative to the pivot base. The pivot is integrally connected to the soil-entry toothed disc, and the weeding finger disc is fixedly connected to the soil-entry toothed disc.

[0023] As an improvement, the outer circumference of the soil-inserting toothed disc is provided with multiple sets of soil-inserting teeth, which are bent at a certain angle 'a' with the soil-inserting toothed disc. During installation, the soil-inserting teeth form an angle 'b' with the vertical direction. The installation range of the angle 'b' is generally between 10 degrees and +10 degrees, and the bending angle of the soil-inserting teeth is generally between 10 degrees and 10 degrees. The outer circumference of the weeding finger disc is provided with multiple sets of weeding fingers, and the weeding finger disc and the soil-inserting toothed disc are installed in an alternating manner.

[0024] As an improvement, the weeding disc is made of a flexible material.

[0025] The weeding mechanism is a passive rotary type; as the machine moves forward, the weeder rotates passively due to soil resistance. The weeding mechanism mainly includes a mounting base, a lateral adjustment base, a height adjustment base, a longitudinal beam, a pivot base, weeding finger discs, and an entry toothed disc. The mounting base is fixedly mounted on the contoured single beam. The lateral adjustment base can be adjusted in lateral position relative to the mounting base. The longitudinal beam can be adjusted in height relative to the height adjustment base. The bottom of the longitudinal beam is fixedly connected to the pivot base, which houses a rotating shaft that can rotate flexibly relative to the pivot base. The rotating shaft is integrally connected to the entry toothed disc, and the weeding finger disc is fixedly connected to the entry toothed disc.

[0026] Multiple sets of soil-inserting teeth are arranged on the outer circumference of the soil-inserting toothed disc, and are bent at a certain angle 'a' with the soil-inserting toothed disc. During installation, the soil-inserting teeth form an angle 'b' with the vertical direction, where the installation range of angle 'b' is generally between 10 degrees and +10 degrees, and the bending angle of the soil-inserting teeth is generally between 10 degrees and 10 degrees. Multiple sets of weeding fingers are arranged on the outer circumference of the weeding finger disc, and the weeding finger disc and the soil-inserting toothed disc are installed in an alternating manner.

[0027] The weeding finger disc is made of flexible material to prevent accidental cutting and damage to seedlings when the weeding fingers accidentally touch the crop plants. The spacing angle between the weeding fingers on the weeding finger disc is c, the radius from the outer end of the weeding finger to the center is R, and the width of the weeding finger is B. Therefore, the arc length between two adjacent weeding fingers is c*R. The arc length is set to match the planting column spacing. It is recommended to set two sets of weeding fingers between large plant spacings and one set of weeding fingers between small plant spacings. When installing the weeding fingers, they correspond to the soil entry teeth of the soil entry tooth disc. The installation angle between the soil entry teeth and the weeding fingers is d. When the soil is hard, the installation angle d is selected as follows: the soil entry teeth and the weeding fingers coincide in the circumferential direction. Because the weeding fingers are flexible, in this case, the soil entry teeth can better drive the weeding fingers into the soil to weed, preventing the flexible weeding fingers from not entering the soil when the ground is hard. When the soil is soft, the installation angle d can be flexibly adjusted.

[0028] Compared with the existing technology, this utility model has the functions and purposes of simple structure and can complete the loosening of soil and weeding in one operation. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the single unit for weeding and tilling in this utility model.

[0031] Figure 3 This is a three-dimensional structural diagram of the weeding mechanism of this utility model.

[0032] Figure 4 This is a schematic diagram of the soil loosening mechanism of this utility model.

[0033] Figure 5This is a schematic diagram (I) of the structure of the weeding finger disc and the soil-inserting toothed disc of this utility model.

[0034] Figure 6 This is a schematic diagram (II) of the structure of the weeding finger disc and the soil-inserting toothed disc of this utility model.

[0035] Figure 7 This is a top view schematic diagram of the main beam and suspension crossbeam structure of this utility model.

[0036] Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure along the AA direction.

[0037] Figure 9 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0038] In the diagram: 1 is the traveling wheel, 2 is the swing arm beam, 3 is the lateral movement cylinder, 4 is the suspension beam, 5 is the suspension frame, 6 is the single unit for weeding and cultivating, 6-1 is the contouring seat, 6-2 is the upper connecting rod, 6-3 is the lower connecting rod, 6-4 is the contouring spring, 6-5 is the contouring adjustment plate, 6-6 is the contouring single beam, 6-7 is the weeding shovel, 6-8 is the contouring wheel, 6-9 is the weeding mechanism, 6-10 is the main beam clamping plate, 6-11 is the longitudinal beam, 6-12 is the height adjustment seat, 6-13 is the pivot seat, 6-1... 4 is the weeding finger disc, 6-15 is the soil-inserting toothed disc, 6-16 is the mounting base, 6-17 is the lateral adjustment base, 6-18 is the toothed disc shaft, 6-19 is the bearing seat, 6-20 is the toothed disc frame, 6-21 is the toothed disc, 6-22 is the loosening tooth, 6-23 is the loosening frame, 6-24 is the loosening mechanism, 6-25 is the connecting plate, 6-26 is the angle adjustment frame, 6-27 is the fixing frame, 7 is the hydraulic cylinder pin, 8 is the hydraulic cylinder seat plate, 9 is the main beam, 10 is the swing arm shaft, 11 is the beam clamp plate, and 12 is the bearing. Detailed Implementation

[0039] The following embodiments further illustrate the above-described content of the present invention in detail. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] Example 1: Refer to Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0041] A row-type weeding and cultivating machine for compacted seedbeds is characterized by comprising a suspension beam 4, a main beam 9, and a transverse movement cylinder 3. The suspension beam 4 is equipped with a suspension frame 5. An adjustment mechanism is provided between the suspension beam 4 and the main beam 9. The adjustment mechanism includes a swing arm beam 2 and a transverse movement cylinder 3. One end of the swing arm beam 2 is hinged to the suspension beam 4, and the other end is hinged to the main beam 9. One end of the transverse movement cylinder 3 is hinged to the suspension beam 4, and the other end is hinged to the swing arm beam 2. The main beam 9 is also equipped with a single weeding and cultivating unit 6. Four swing arm beams 2 are provided, arranged in pairs on both sides symmetrically opposite the suspension beam 4. Two sets of transverse movement cylinders 3 are provided.

[0042] The suspension beam 4 and the main beam 9 are connected by four sets of swing arm beams 2. The swing arm beams 2 are rotated by the extension and retraction of the lateral movement cylinder 3, thereby controlling the lateral movement of the main beam and the weeding unit 6.

[0043] To cope with the significant resistance caused by soil compaction, two sets of hydraulic cylinders are used to adjust and balance the entire machine.

[0044] As an improvement, the single unit 6 for inter-cultivation and weeding includes a contouring seat 6-1, an upper connecting rod 6-2, a lower connecting rod 6-3, a contouring spring 6-4, a contouring wheel 6-8, a contouring adjustment plate 6-5, a contouring unit beam 6-6, an inter-cultivation and weeding shovel 6-7, a weeding mechanism 6-9, and a soil loosening mechanism 6-24; the contouring seat 6-1, upper connecting rod 6-2, lower connecting rod 6-3, and contouring adjustment plate 6-5 form a four-bar linkage mechanism; the weeding mechanism 6-9 and the inter-cultivation and weeding shovel 6-7 are mounted on the contouring unit beam 6-6; and the contouring seat 6-1 is fixedly connected to the folding... On the stacked frame 5, the contoured single beam 6-6 is fixedly connected to the contoured adjusting plate 6-6, and the weeding shovel 6-7 and the weeding mechanism 6-9 are connected to the contoured single beam 6-6; the soil loosening mechanism includes a soil loosening frame 6-23, a toothed disc frame 6-20, a toothed disc 6-21 and soil loosening teeth 6-22, the soil loosening teeth 6-22 are arranged on the outer edge of the toothed disc 6-21, the toothed disc 6-21 is arranged on the toothed disc frame 6-20 and the toothed disc 6-21 can rotate on the toothed disc frame 6-20, and the toothed disc frame 6-20 is arranged on the soil loosening frame 6-23.

[0045] The contouring seat 6-1 is T-shaped, with two sets of threaded holes symmetrically arranged on the protruding front end and two sets of hinge holes on the right end. One set of hinge holes connects to the upper connecting rod 6-2 and the lower connecting rod 6-3, and the other set connects to the folding frame 5. During installation, the front end of the contouring seat 6-1 is aligned with the folding frame 5. The main beam clamping plate is L-shaped, with one end hinged to the contouring seat 6-1 and two sets of bolt holes in the middle. The main beam clamping plate is clamped onto the folding frame 5 by mounting bolts. Due to the variety of planting patterns and the large number of crop row spacings, the installation distance between the weeding and cultivating units 6 needs to be adjusted according to the planting pattern to adapt to different row spacings. This clamping method is beneficial for clamping and quick adjustment of lateral position.

[0046] The front ends of the upper and lower connecting rods are hinged to the contouring seat 6-1, and the rear ends are hinged to the contouring adjustment plate 6-5. A contouring spring 6-4 is installed between the upper and lower connecting rods. The upper connecting rod 6-2 has multiple sets of contouring spring 6-4 mounting holes arranged sequentially from front to back. The contouring preload can be adjusted by changing the mounting position of the contouring spring 6-4 according to the hardness of the ground. The upper connecting rod 6-2 is fishbone shaped because the preload increases towards the rear of the contouring spring 6-4; this shape is designed to protect the strength of the upper connecting rod 6-2. The contouring adjustment plate 6-5 is connected to the contouring wheel 6-8 by a threaded connection, facilitating adjustment of the depth limit height of the contouring wheel 6-8.

[0047] The rear end of the contour adjustment plate 6-5 is fixedly connected to the contour single beam 6-6. The contour single beam 6-6 is divided into left and right groups. The contour single beam 6-6 has multiple sets of weeding shovel mounting holes from front to back for installing the weeding shovel 6-7 and the weeding mechanism 6-9. The installation spacing between the front and rear shovels can be adjusted according to the actual use.

[0048] The loosening teeth 6-22 are arc-shaped with pointed ends. The outer arc-shaped surface cuts the soil, and the toothed disc is hinged to the toothed disc frame through a bearing seat.

[0049] To address the issue of weeding rollers failing to rotate and become inoperable when the soil is compacted and hard, a soil loosening disc is installed directly in front of the weeding rollers. This disc loosens the soil in the working area corresponding to the weeding rollers, breaking up the compacted and hard soil so that the roller teeth can better penetrate the soil.

[0050] Meanwhile, to cope with hard soil, a set of compression springs is set up, consisting of a spring rod, a compression spring, and a compression spring pivot pin. The compression spring pivot pin is hinged to the single frame, and the pivot pin has a spring rod mounting hole in the middle. While the spring rod slides flexibly up and down relative to the compression spring pivot pin, the compression spring pivot pin rotates relative to the single frame.

[0051] As an improvement, the weeding mechanism 6-9 includes a mounting base 6-16, a lateral adjustment base 6-17, a height adjustment base 6-12, a longitudinal beam 6-11, a pivot base 6-13, a weeding finger disc 6-14, and a soil-entry toothed disc 6-15. The mounting base 6-16 is fixedly mounted on the contoured single beam 6-6. The lateral adjustment base 6-17 can be adjusted in lateral position relative to the mounting base 6-16. The longitudinal beam 6-11 can be adjusted in height relative to the height adjustment base 6-12. The bottom of the longitudinal beam 6-11 is fixedly connected to the pivot base 6-13, and a pivot is installed in the pivot base 6-13. The pivot can rotate flexibly relative to the pivot base 6-13. The pivot is integrally connected to the soil-entry toothed disc 6-15, and the weeding finger disc 6-14 is fixedly connected to the soil-entry toothed disc 6-15.

[0052] As an improvement, the outer circumference of the soil-inserting toothed disc 6-15 is provided with multiple sets of soil-inserting teeth, which are bent at a certain angle 'a' with the soil-inserting toothed disc 6-15. During installation, the soil-inserting teeth form an angle 'b' with the vertical direction. The installation range of the angle 'b' is generally between -5 degrees and +5 degrees, and the bending angle of the soil-inserting teeth is generally between 110 degrees and 140 degrees. The outer circumference of the weeding finger disc 6-14 is provided with multiple sets of weeding fingers, and the weeding finger disc 6-14 and the soil-inserting toothed disc 6-15 are installed in an alternating manner.

[0053] As an improvement, the weeding finger discs 6-14 are made of flexible material.

[0054] The weeding mechanism 6-9 is a passive rotary type. When the machine moves forward, the weeder is passively rotated due to soil resistance. The weeding mechanism 6-9 mainly includes a mounting base 6-16, a lateral adjustment base 6-17, a height adjustment base 6-12, a longitudinal beam 6-11, a pivot base 6-13, a weeding finger disc 6-14, and a soil-entry toothed disc 6-15. The mounting base 6-16 is fixedly mounted on the contoured single beam 6-6. The lateral adjustment base 6-17 can be adjusted in lateral position relative to the mounting base 6-16. The longitudinal beam 6-11 can be adjusted in height relative to the height adjustment base 6-12. The bottom of the longitudinal beam 6-11 is fixedly connected to the pivot base 6-13, and a pivot is installed in the pivot base 6-13, which can rotate flexibly relative to the pivot base 6-13. The pivot is integrally connected to the soil-entry toothed disc 6-15, and the weeding finger disc 6-14 is fixedly connected to the soil-entry toothed disc 6-15.

[0055] Multiple sets of soil-inserting teeth are arranged on the outer circumference of the soil-inserting toothed disc 6-15, and are bent at a certain angle 'a' with the soil-inserting toothed disc 6-15. During installation, the soil-inserting teeth form an angle 'b' with the vertical direction, where the installation range of angle 'b' is generally between -5 degrees and +5 degrees, and the bending angle of the soil-inserting teeth is generally between 110 degrees and 140 degrees. Multiple sets of weeding fingers are arranged on the outer circumference of the weeding finger disc 6-14, and the weeding finger disc 6-14 and the soil-inserting toothed disc 6-15 are installed in an alternating manner.

[0056] The weeding finger disc 6-14 is made of flexible material to prevent the weeding fingers from accidentally cutting and damaging the seedlings when they accidentally touch the crop plants. The weeding finger spacing angle on the weeding finger disc 6-14 is c, the radius from the outer end of the weeding finger to the center is R2, and the width of the weeding finger is B. Therefore, the arc length between two adjacent weeding fingers is c*R2. The arc length is set to match the planting column spacing. It is recommended to set two sets of weeding fingers between large plant spacings and one set of weeding fingers between small plant spacings. When installing the weeding fingers, they correspond to the soil entry teeth of the soil entry tooth disc 6-15. The installation angle between the soil entry teeth and the weeding fingers is d. When the soil is hard, the installation angle d is selected as 0. The soil entry teeth and the weeding fingers coincide in the circumferential direction. Because the weeding fingers are flexible, in this case, the soil entry teeth can better drive the weeding fingers into the soil to weed, preventing the flexible weeding fingers from not entering the soil when the ground is hard. When the soil is soft, the installation angle d can be flexibly adjusted.

[0057] Example 2: Refer to Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present utility model. Compared with Embodiment 1, the difference in this embodiment is that the soil loosening frame 6-23 of the soil loosening mechanism includes a fixed frame 6-27, an angle adjusting frame 6-26 and a connecting plate 6-25. The gear plate frame 6-20 is set on the angle adjusting frame 6-26. The angle adjusting frame 6-26 is hinged to the middle of the fixed frame 6-27, and a connecting plate 6-25 is also provided between the angle adjusting frame 6-26 and the fixed frame 6-27. The connecting plate 6-25 can adjust the included angle between the angle adjusting frame 6-26 and the fixed frame 6-27.

[0058] The loosening teeth 6-22 are arc-shaped with pointed ends. The outer arc-shaped surface cuts the soil, and the toothed disc is hinged to the toothed disc frame through a bearing seat.

[0059] When weeding during the seedling stage, the soil-loosening and weeding disc can be positioned at a certain angle to the direction of the machine's movement. The loosening teeth can be used to remove weeds between the plants without damaging the seedlings. The number of loosening teeth installed on the circumference can be adjusted according to the column spacing.

[0060] In this process, the seat plate is fixedly installed on the single frame, and the center of the seat plate is provided with a hinge hole; the angle adjustment plate is fixedly connected to the gear plate frame, and the angle adjustment plate is provided with multiple sets of mounting holes that are hinged to the center of the seat plate; the two ends of the seat plate and the angle adjustment plate are respectively hinged with connecting plates, and the connecting plates are provided with multiple sets of mounting holes. The appropriate mounting hole is selected according to the size of the adjustment angle.

Claims

1. A row-type inter-row tiller and weeder for compacted seedbeds, characterized in that: It includes a suspension beam (4), a main beam (9) and a transverse cylinder (3). The suspension beam (4) is provided with a suspension frame (5). An adjustment mechanism is provided between the suspension beam (4) and the main beam (9). The adjustment mechanism includes a swing arm beam (2) and a transverse cylinder (3). One end of the swing arm beam (2) is hinged to the suspension beam (4) and the other end is hinged to the main beam (9). One end of the transverse cylinder (3) is hinged to the suspension beam (4) and the other end is hinged to the swing arm beam (2). The main beam (9) is also provided with a weeding unit (6).

2. The paired-row type cultivator and weeder for a board-tying seedbed according to Claim 1, characterized in that: The tillage and weeding unit (6) includes a contour base (6-1), an upper connecting rod (6-2), a lower connecting rod (6-3), a contour spring (6-4), a contour wheel (6-8), a contour adjustment plate (6-5), a contour unit beam (6-6), a tillage and weeding shovel (6-7), a weeding mechanism (6-9), and a soil loosening mechanism (6-24). The contouring base (6-1), upper connecting rod (6-2), lower connecting rod (6-3) and contouring adjustment plate (6-5) form a four-bar linkage mechanism, and the weeding mechanism (6-9) and the weeding shovel (6-7) are mounted on the contouring single beam (6-6). The soil loosening mechanism includes a soil loosening frame (6-23), a toothed disc frame (6-20), a toothed disc (6-21), and soil loosening teeth (6-22). The soil loosening teeth (6-22) are disposed on the outer edge of the toothed disc (6-21). The toothed disc (6-21) is disposed on the toothed disc frame (6-20) and can rotate on the toothed disc frame (6-20). The toothed disc frame (6-20) is disposed on the soil loosening frame (6-23).

3. The paired-row type cultivator for a board-tying seedbed according to Claim 2, characterized in that: The loosening frame (6-23) of the loosening mechanism includes a fixed frame (6-27), an angle adjustment frame (6-26), and a connecting plate (6-25). The gear plate frame (6-20) is mounted on the angle adjustment frame (6-26). The angle adjustment frame (6-26) is hinged to the middle of the fixed frame (6-27), and a connecting plate (6-25) is provided between the angle adjustment frame (6-26) and the fixed frame (6-27). The connecting plate (6-25) can adjust the included angle between the angle adjustment frame (6-26) and the fixed frame (6-27).

4. The row-type inter-row tiller and weeder for compacted seedbeds as described in claim 1, characterized in that: The suspension beam (4) and the main beam (9) are connected by four sets of swing arm beams (2). The swing arm beams (2) are rotated by the extension and retraction of the lateral movement cylinder (3), thereby controlling the lateral movement of the main beam and the weeding unit (6).

5. The paired-row type cultivator for a board-tying seedbed according to Claim 1, characterized in that: The weeding mechanism (6-9) includes a mounting base (6-16), a lateral adjustment base (6-17), a height adjustment base (6-12), a longitudinal beam (6-11), a pivot base (6-13), a weeding finger disc (6-14), and a soil-penetrating toothed disc (6-15). The mounting base (6-16) is fixedly mounted on the contoured single beam (6-6). The lateral adjustment base (6-17) can be adjusted in lateral position relative to the mounting base (6-16). The longitudinal beam (6-11) can be adjusted in height relative to the height adjustment base (6-12). The bottom of the longitudinal beam (6-11) is fixedly connected to the pivot base (6-13). A pivot is installed in the pivot base (6-13), and the pivot can rotate flexibly relative to the pivot base (6-13). The pivot is integrally connected to the soil-penetrating toothed disc (6-15), and the weeding finger disc (6-14) is fixedly connected to the soil-penetrating toothed disc (6-15).

6. The row-type inter-row tiller and weeder for compacted seedbeds as described in claim 5, characterized in that: The outer circumference of the soil-inserting toothed disc (6-15) is provided with multiple sets of soil-inserting teeth, which are bent at a certain angle a with the soil-inserting toothed disc (6-15). During installation, the soil-inserting teeth form an angle b with the vertical direction. The installation range of the angle b is generally between -5 degrees and +5 degrees, and the bending angle of the soil-inserting teeth is generally between 110 degrees and 140 degrees. The outer circumference of the weeding finger disc (6-14) is provided with multiple sets of weeding fingers, and the weeding finger disc (6-14) and the soil-inserting toothed disc (6-15) are installed in an alternating manner.

7. The row-type inter-row tiller and weeder for compacted seedbeds as described in claim 5, characterized in that: The weeding finger disc (6-14) is made of flexible material.

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