Soil loosening and reseeding device and method for improving degraded grassland

Abstract

The invention discloses a soil loosening and reseeding device and method for degraded grassland improvement, relates to the field of degraded grassland improvement, and solves the problems that an existing degraded grassland is difficult to accurately improve, a feed opening is easy to block, and energy consumption is high. The device comprises a frame, a connecting seat / telescopic piece I, a seeding box, a rotating shaft I, an I-shaped barrel, a limiting sliding groove, a sliding block, a soil loosening cutter and an adjusting assembly, a plurality of discharging barrels are arranged at the bottom of the seeding box, rotating rods are rotationally connected into the discharging barrels, and scattering arc strips for scattering grass seeds are connected to the upper ends of the rotating rods in the seeding box. A driving assembly is arranged on the seeding box and used for driving the rotating rod to rotate, and a positioning and stabilizing assembly is further arranged in the first rotating shaft and used for positioning and stabilizing all the sliding blocks. By means of the device and method, the degraded grassland can be subjected to accurate and efficient soil loosening and reseeding improvement, discharging and seeding are smooth, and energy consumption is low.

Description

Technical Field

[0001] This invention relates to the field of degraded grassland improvement, and more particularly to a soil loosening and reseeding device and method for degraded grassland improvement. Background Technology

[0002] Grassland degradation is mainly manifested in the reduction of high-quality forage varieties, the deterioration of the quality of various forages, and the decline in forage yield per unit area. The loss of high-quality forage and the decline in economic productivity necessitate timely loosening of the soil and reseeding in identified degraded grassland areas.

[0003] Currently, grassland loosening and reseeding equipment is only suitable for large-scale loosening and reseeding, and cannot precisely loosen and reseed only degraded grassland areas. Grasslands often experience localized, small-scale degradation due to human activity or adverse natural factors, while large-scale loosening can damage healthy grasslands, increasing the cost of improving degraded areas. Furthermore, due to the morphological properties of grass seeds, the equipment used for sowing typically requires a large feeding and sowing opening; otherwise, blockage can easily occur. A large opening leads to excessively rapid seeding, increasing the sowing volume and costs. Although there are devices that use drive components for continuous sowing, this increases energy consumption. Therefore, a soil loosening and reseeding device and method for improving degraded grasslands is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a soil loosening and reseeding device and method for improving degraded grasslands, which solves the problems of existing degraded grasslands being difficult to improve accurately, and being prone to clogging the feed inlet and having high energy consumption.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a soil loosening and reseeding device for improving degraded grassland, comprising a frame, a telescopic component, and a seeding box. The seeding box is connected to the frame via the telescopic component. A rotating shaft is provided below the seeding box, and multiple I-beams are evenly arranged on the rotating shaft. Multiple limiting grooves are radially arrayed on both sides of the I-beams, and sliders are slidably connected in the limiting grooves. Soil loosening blades are installed on the sliders. An adjustment component is also provided on the rotating shaft for driving each slider and soil loosening blade to slide and adjust within the limiting grooves. The bottom of the seeding box is provided with multiple feeding cylinders, and a rotating rod is rotatably connected inside the feeding cylinder. The upper end of the rotating rod is connected to a dispersing arc strip inside the seeding box for dispersing grass seeds. The rotating shaft is also equipped with a positioning and stabilizing component, which is used to position and stabilize each slider.

[0006] Furthermore, the adjustment assembly includes a servo motor, a rotating shaft, a threaded cylinder, a threaded ring, a collar, and a rotating plate. The rotating shaft is located on both sides of the rotating shaft. The rotating shaft rotates through each I-beam and is connected to the output shaft end of the servo motor. The threaded cylinder is fitted onto the rotating shaft on the outside of the I-beam. The threads of the threaded cylinders on both sides of each I-beam have opposite directions. The threaded ring is threaded onto the outside of the threaded cylinder. The collar is connected to the threaded ring and slidably fitted onto the outside of the rotating shaft. The two ends of the rotating plate are rotatably connected to the slider and the collar, respectively.

[0007] Furthermore, a limiting hole is provided on the I-beam, and each of the soil loosening blades slides through the limiting hole and extends to the outside of the I-beam.

[0008] Furthermore, the seeding box is equipped with a drive assembly for driving the rotating rod to rotate. The drive assembly includes a telescopic component two, an L-shaped plate, a contact switch, a ring frame, a sprocket, a servo motor two, and a chain. The telescopic component two is connected to the lower end of the seeding box, the L-shaped plate is connected to the lower end of the telescopic component two, the contact switch is connected to both sides of the seeding box and cooperates with the L-shaped plate to abut. The ring frame is rotatably fitted onto the lower end of the feeding cylinder and fitted onto the outside of the rotating rod. The servo motor two is installed at the bottom of the seeding box, the sprocket is fitted onto the outside of the ring frame and the output shaft end of the servo motor two, the chain is fitted onto the outside of each sprocket, and the contact switch is electrically connected to the servo motor two.

[0009] Furthermore, the positioning and stabilizing component includes a circular cavity, a disc, a positioning hole, a sliding hole, a through hole, a connecting rod, and an opening. Each circular cavity is formed within an I-beam. The discs are arranged in pairs within the same circular cavity, and multiple positioning pins are radially and equally spaced along one side of each disc in the same group. The positioning hole is formed on the slider. A through groove is formed between the limiting slide groove and the circular cavity. The positioning pin passes through the through groove and is inserted into the positioning hole. The sliding hole is formed on both axial sides of the rotating shaft and passes through the circular cavity. The through hole is eccentrically formed on the disc. The connecting rod slides within the sliding hole and passes through the through hole to connect with the disc on the same side of the adjacent circular cavity. The opening is formed at both ends of the rotating shaft and is located on the radially symmetrical side of the rotating shaft. The openings at both ends pass through the sliding holes formed on both axial sides of the rotating shaft. A linkage component is provided between the L-shaped plate and the connecting rod. The linkage component is used to drive the disc to slide, thereby causing the positioning pin to be inserted into the positioning hole.

[0010] Furthermore, the linkage assembly includes a trapezoidal rotating ring, a second circular ring, a guide slide rod, a spring, and an inclined block. The connecting rod extends through an opening communicating with its respective sliding hole to the outside of the rotating shaft, and a first circular ring is connected to the outer extension end. The trapezoidal rotating ring is rotatably fitted on the outside of the first circular ring, the second circular ring is fitted on the outside of the rotating shaft, the guide slide rod array is connected to the second circular ring and slidably fitted with the first circular ring, the spring is fitted on the outside of the guide slide rod, and the two ends of the spring are respectively connected to the first circular ring and the second circular ring, and the inclined block is connected to the lower end of the L-shaped plate and slides against the trapezoidal rotating ring.

[0011] Furthermore, mounting frames are connected to both sides of the seeding box, and slide rails are connected to the mounting frames. Slide rail blocks are slidably connected inside the slide rails, and screws are rotatably connected inside the slide rails, with the screws threaded into the slide rail blocks. A mounting base is connected to one side of the slide rail block, and a servo motor is mounted on the mounting base. The output end of the servo motor is connected to a soil-turning rod cylinder.

[0012] Furthermore, the array of dispersing arc bars is arranged in multiple ways and connected to the rotating rod. The loosening blade is bolted to the slider. The bottom of the seeding box is also connected to a ramp. The ramp is located below each feeding cylinder and above the loosening blade. An electromagnetic door is provided at the lower end of the feeding cylinder.

[0013] A method for loosening soil and reseeding degraded grassland, the method being based on the aforementioned device, and the specific steps including: Step 1: Install the vehicle frame onto the tractor unit via the connecting bracket and tow it to the pasture that needs improvement, loosening, and reseeding; Step 2: Control the extension and retraction of the telescopic component 1, and adjust the overall height of the seed box, its upper rotating shaft 1, I-beam cylinder, slider, and loosening blade, so that the loosening blade contacts the ground soil but does not penetrate the soil; Step 3: The tractor unit moves the vehicle frame. When it reaches the grassland degradation area, the adjustment component is activated to drive the sliders and loosening blades that are close to the minimum spacing to move away from each other radially along the I-beam, so that the loosening blades can be inserted into the soil of the degradation area. The drive motor is started to drive the loosening blades to rotate and loosen the soil. During this process, grass seeds are sown by falling through the feeding cylinder. At the same time, the positioning and stabilization component is activated to position and stabilize the sliders after the adjustment. Step 4: During the loosening and sowing process, when the grass seeds in the seeding box at the top of the lower cylinder become clogged, start the drive unit to drive the rotating rod to rotate, thereby breaking up the grass seeds in the seeding box and feeding them for sowing.

[0014] Compared with related technologies, the soil loosening and reseeding device and method for improving degraded grasslands provided by the present invention have the following beneficial effects: This invention features an adjustable soil loosening blade mounted on an I-beam shaft. The blade is adjusted via an adjustment mechanism, allowing it to flexibly insert into the soil for loosening or leave the soil to protect existing healthy grasslands. This achieves precise soil loosening and improvement only in degraded grasslands. Furthermore, the drive mechanism allows the rotating rod and dispersing arc to operate only when blocked, ensuring smooth material feeding and sowing, avoiding continuous operation, and reducing energy consumption. The loosening blade is also stabilized during use by engaging a positioning pin with a designated positioning hole. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the device of the present invention from the front view.

[0016] Figure 2 This is a rear view schematic diagram of the device of the present invention.

[0017] Figure 3 This is a side view of the cross-sectional structure of the device of the present invention.

[0018] Figure 4 This is a cross-sectional view of the side structure of the device of the present invention.

[0019] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0020] Figure 6 for Figure 3 Enlarged view of point B in the middle.

[0021] Figure 7 for Figure 3 Enlarged view of point C in the middle.

[0022] Figure 8 This is a schematic diagram of the internal structure of the seeding box of the device of the present invention.

[0023] Figure 9 This is a schematic diagram of the relevant structures on the rotating shaft of the device of the present invention.

[0024] Figure 10 This is a schematic diagram of the rotating shaft and the internal structure of the I-beam of the device of the present invention.

[0025] Figure 11 This is a schematic diagram of the internal structure of the I-beam tube of the device of the present invention.

[0026] Figure 12 This is a schematic diagram of the slider and rotating plate of the device of the present invention.

[0027] Figure 13 This is a schematic diagram of the relevant structure at the rotating rod of the device of the present invention.

[0028] In the diagram: 1. Frame; 101. Connecting seat; 2. Telescopic component one; 3. Seeding box; 301. Mounting frame; 4. Rotating shaft one; 5. I-beam; 6. Limiting groove; 601. Through groove; 7. Sliding block; 8. Loosening blade; 9. Limiting hole; 10. Servo motor one; 11. Rotating shaft two; 12. Threaded cylinder; 13. Threaded ring; 14. Collar; 15. Rotating plate; 16. Circular cavity; 17. Disc; 18. Positioning pin; 19. Positioning hole; 20. Sliding hole; 21. Through hole; 22. Connecting rod 23. Opening; 24. Ring 1; 25. Trapezoidal rotating ring; 26. Ring 2; 27. Guide slide rod; 28. Spring; 29. ​​Shrinking part 2; 30. L-shaped plate; 31. Contact switch; 32. Feeding cylinder; 33. Ring frame; 34. Rotating rod; 35. Dispersing arc strip; 36. Inclined block; 37. Sprocket; 38. Servo motor 2; 39. Chain; 40. Slide rail; 41. Slide rail block; 42. Screw; 43. Mounting base; 44. Servo motor 3; 45. Soil turning rod cylinder; 46. Slope. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0030] Example 1: Please see Figure 1-13 The present invention provides a technical solution: a soil loosening and reseeding device for improving degraded grassland, including a frame 1, a telescopic component 2 and a seeding box 3. The seeding box 3 is connected to the frame 1 through the telescopic component 2. A rotating shaft 4 is provided below the seeding box 3, and a plurality of I-beams 5 are evenly arranged on the rotating shaft 4. A plurality of limiting grooves 6 are radially arranged on both sides of the I-beams 5, and a slider 7 is slidably connected in the limiting groove 6. A soil loosening knife 8 is installed on the slider 7. An adjustment component is also provided on the rotating shaft 4 for driving each slider 7 and the soil loosening knife 8 to slide and adjust in the limiting groove 6. The bottom of the seeding box 3 is provided with multiple feeding cylinders 32. A rotating rod 34 is rotatably connected inside the feeding cylinder 32. The upper end of the rotating rod 34 is connected to a dispersing arc strip 35 for dispersing grass seeds inside the seeding box 3. The rotating shaft 4 is also equipped with a positioning and stabilizing component, which is used to position and stabilize each slider 7.

[0031] In practical use, after the device is towed by a tractor to the degraded grassland to be converted, the adjusting component drives each slider 7 and the loosening blade 8 to slide and converge along the limiting groove 6 towards the axial direction of the I-beam 5, so that each loosening blade 8 is in the closest position. The height of the seed box 3, the rotating shaft 4, the I-beam 5, the slider 7 and the loosening blade 8 are adjusted by the telescopic component 2, so that the loosening blade 8 is in contact with the ground soil but does not penetrate the soil. As the tractor pulls, when the seed box 3 moves above the degraded grassland area, the adjusting component is activated to drive each loosening blade 8 away from each other until it is inserted into the soil. The specific insertion depth is adjusted according to actual use. Then the drive motor drives the rotating shaft 4 to rotate, and the tractor pulls the frame 1 to move forward, so that the loosening blade 8 can loosen the soil in the degraded grassland area. When it moves to the healthy grassland area, the loosening blade 8 is adjusted to converge with each other and no longer penetrate the soil, so as to protect the healthy grassland area. Meanwhile, during the process of loosening the soil in the grassland degradation area by the loosening blade 8, the feeding cylinder 32 can feed and sow grass seeds in the seeding box 3. When the upper end of the feeding cylinder 32 is blocked, the drive component is activated to drive the rotating rod 34 and the dispersing arc bar 35 to rotate, so as to disperse the blockage and sow the seeds smoothly and evenly, while avoiding the constant opening of the drive component and increasing energy consumption. Furthermore, after adjusting the positions of the slider 7 and the tlodging blade 8, the positioning and stabilizing components can be used to stabilize each slider 7, thereby stabilizing the installation of the tlodging blade 8 on it.

[0032] Furthermore, the adjustment assembly includes a servo motor 10, a rotating shaft 11, a threaded cylinder 12, a threaded ring 13, a collar 14, and a rotating plate 15. The rotating shaft 11 is mounted on both sides of the rotating shaft 14, and rotates through each I-beam 5, connecting to the output shaft end of the servo motor 10. The threaded cylinder 12 is fitted onto the rotating shaft 11 on the outside of the I-beam 5, with the threads of the threaded cylinders 12 on both sides of each I-beam 5 having opposite thread directions. The threaded ring 13 is threaded onto the outside of the threaded cylinder 12, and the collar 14 is connected to the threaded ring 13 and slidably fitted onto the outside of the rotating shaft 14. The two ends of the rotating plate 15 are rotatably connected to the slider 7 and the collar 14, respectively. Figure 5 , 8 As shown in Figure 9, when it is necessary to adjust the position of each slider 7 and the loosening blade 8 installed on it, the servo motor 10 is started to drive the rotating shaft 11 to rotate, which in turn drives the threaded cylinder 12 with opposite threads on the rotating shaft 11 on both sides of the I-beam 5 to rotate. As a result, the threaded rings 13 on both sides of the I-beam 5 that are threaded on the outside of the threaded cylinder 12 move closer or further away from each other, so that the collars 14 on both sides of the I-beam 5 move closer or further away from each other, and drive the rotating plate 15 to rotate, so as to pull the slider 7 and the loosening blade 8 to slide inward or outward along the radial direction of the I-beam 5 in the limiting groove 6, thereby driving and adjusting the position of the loosening blade 8 on each I-beam 5.

[0033] Furthermore, a limiting hole 9 is provided on the I-beam 5, and each loosening blade 8 slides through the limiting hole 9 and extends to the outside of the I-beam 5, such as... Figure 5 As shown, the limiting hole 9 allows the loosening knife 8 to pass through it and extend to the outside of the I-beam 5. At the same time, the limiting hole 9 can also stably slide the loosening knife 8, thereby improving the stability of the loosening knife 8.

[0034] Furthermore, the seeding box 3 is equipped with a drive assembly for rotating the rotating rod 34. The drive assembly includes a telescopic component 29, an L-shaped plate 30, a contact switch 31, a ring frame 33, a sprocket 37, a servo motor 38, and a chain 39. The telescopic component 29 is connected to the lower end of the seeding box 3, the L-shaped plate 30 is connected to the lower end of the telescopic component 29, the contact switch 31 is connected to both sides of the seeding box 3 and engages with the L-shaped plate 30. The ring frame 33 is rotatably fitted onto the lower end of the feed cylinder 32 and onto the outside of the rotating rod 34. The servo motor 38 is installed at the bottom of the seeding box 3. The sprocket 37 is fitted onto the outside of the ring frame 33 and the output shaft end of the servo motor 38. The chain 39 is fitted onto the outside of each sprocket 37. The contact switch 31 is electrically connected to the servo motor 38. Figure 7 As shown, when the telescopic component 29 is activated, the L-shaped plate 30 is moved upward and gradually comes into contact with the contact switch 31. The contact switch 31 then controls the servo motor 38 to run, which in turn drives the sprockets 37 to rotate via the chain 39. This drives the rotating rods 34, allowing for easy control of the dispersing arc bar 35 to disperse the grass seeds blocking the upper end of the feeding cylinder 32 as needed, thus ensuring even feeding and sowing of the grass seeds.

[0035] Furthermore, the positioning and stabilizing assembly includes a circular cavity 16, a disc 17, a positioning hole 19, a sliding hole 20, a through hole 21, a connecting rod 22, and an opening 23. Each circular cavity 16 is formed within an I-beam 5. Two discs 17 are arranged together within the same circular cavity 16, and multiple positioning pins 18 are radially and equally spaced along one side of each disc 17. The positioning hole 19 is formed on the slider 7. A through groove 601 is formed between the limiting slide groove 6 and the circular cavity 16. The positioning pins 18 pass through the through groove 601 and are fitted into the positioning hole 19. The sliding hole 20 rotates... Shaft 4 has openings on both axial sides, penetrating the circular cavity 16. Through holes 21 are eccentrically located on the disk 17. Connecting rod 22 slides within sliding holes 20 and connects to the disk 17 on the same side of the adjacent circular cavity 16 through the through holes 21. Openings 23 are located at both ends of shaft 4, respectively on symmetrical radial sides. The openings 23 at both ends penetrate the sliding holes 20 on both axial sides of shaft 4. A linkage assembly is provided between the L-shaped plate 30 and the connecting rod 22. This linkage assembly drives the disk 17 to slide, thereby causing the positioning pin 18 to engage with the positioning hole 19. Figure 5 and 10As shown, by driving the connecting rods 22 that slide in the sliding holes 20 on both sides of the I-beam 5 to move closer to each other, the discs 17 on both sides of the circular cavity 16 can be moved away from each other. This allows the positioning pins 18 connected radially on one side of the discs 17 to pass through the through slots 601 and be inserted into the positioning holes 19 on the slider 7. This allows for stable positioning of the slider 7 and the tamper 8 installed on it. The positioning pins 18 connected radially on the discs 17 are equally spaced. Therefore, when adjusting the slider 7, the distance of each displacement of the slider 7 is a multiple of the distance between adjacent positioning pins 18.

[0036] Furthermore, the linkage assembly includes a trapezoidal rotating ring 25, a second circular ring 26, a guide slide rod 27, a spring 28, and a wedge block 36. The connecting rod 22 extends through openings 23 that pierce its respective sliding holes 20 onto the outside of the rotating shaft 4, and a first circular ring 24 is connected to its outer extension end. The trapezoidal rotating ring 25 is rotatably fitted onto the outside of the first circular ring 24, the second circular ring 26 is fitted onto the outside of the rotating shaft 4, the guide slide rods 27 are arrayed and connected to the second circular ring 26, and slidably fitted with the first circular ring 24. The spring 28 is fitted onto the outside of the guide slide rods 27, and its two ends are respectively connected to the first circular ring 24 and the second circular ring 26. The wedge block 36 is connected to the lower end of the L-shaped plate 30 and slides in contact with the trapezoidal rotating ring 25. Figure 5 and 10 As shown, when the position of the loosening blade 8 is adjusted and loosening of soil is required, the L-shaped plate 30 is pulled upward by the telescopic component 29. Before the L-shaped plate 30 contacts the contact switch 31, the inclined block 36 can be pulled upward. When the inclined block 36 moves upward, it can contact and cooperate with the trapezoidal rotating ring 25, causing the first ring 24 to slide closer to the second ring 26 on the guide slide rod 27 and compress the spring 28. When the first ring 24 slides, it can also drive the connecting rod 22 connected to it to slide in the sliding hole 20. In this way, the disc 17 can be driven. When it is necessary to pull the L-shaped plate 30 to continue to move upward and contact the contact switch 31 to drive the rotating rod 34 to rotate, the inclined block 36 can still be in contact with the trapezoidal rotating ring 25. This ensures that regardless of whether the rotating rod 34 rotates or not, the positioning pin 18 can be driven to install and position the positioning hole 19 on the slider 7, so as to achieve stability when the loosening blade 8 is running.

[0037] like Figure 10 As shown, each connecting rod 22 slides within the circular cavity 16 and passes through a disk 17 via a through hole 21, connecting to another disk 17 within the circular cavity 16. Thus, when the symmetrical connecting rods 22 on both sides of the rotating shaft 4 move closer to each other, the two disks 17 within each circular cavity 16 are simultaneously moved away from each other, thereby enabling the positioning pin 18 to engage with the positioning hole 19 and achieve stable positioning of the slider 7 and the loosening blade 8.

[0038] Furthermore, mounting frames 301 are connected to both sides of the seed box 3. A slide rail 40 is connected to the mounting frame 301. A slide rail block 41 is slidably connected inside the slide rail 40. A screw 42 is rotatably connected inside the slide rail 40, and the screw 42 is threaded into the slide rail block 41. A mounting base 43 is connected to one side of the slide rail block 41, and a servo motor 44 is mounted on the mounting base 43. The output end of the servo motor 44 is connected to a soil-turning cylinder 45. Figure 2 As shown, the height of the slide block 41, mounting base 43 and soil turning cylinder 45 can be adjusted by rotating the screw 42, so that the soil turning cylinder 45 set on the rear side of the rotating shaft 4 can effectively turn the soil that has been loosened and sown in front, and turn the soil with grass seeds on the surface to the lower layer to facilitate the germination and growth of grass seeds.

[0039] Furthermore, multiple arrays of scattered arc strips 35 are set and connected to the rotating rod 34. The loosening blade 8 is bolted to the slider 7. The bottom of the seed box 3 is also connected to a ramp 46, which is located below each feeding cylinder 32 and above the loosening blade 8. The lower end of the feeding cylinder 32 is equipped with an electromagnetic door, such as... Figure 1 , 4 As shown in Figure 11, the arrangement of multiple arrays of dispersing arc bars 35 helps to improve dispersing efficiency. The loosening blade 8 is installed on the slider 7 by bolts, making it easy to replace. The slope 46 can guide the grass seeds discharged by the feeding cylinder 32 to be spread between the rotating shaft 4 and the turning rod cylinder 45. The electromagnetic compartment door below the feeding cylinder 32 can be opened simultaneously for sowing when loosening the soil in the grassland degradation area, and closed in time when there is no loosening to avoid discharging grass seeds in healthy grassland areas and causing unnecessary waste.

[0040] Example 2: This invention provides a technical solution: a method for loosening soil and reseeding degraded grassland, the specific steps of which include: Step 1: Install the frame 1 onto the tractor via the connecting seat 101, and tow it to the pasture that needs improvement, loosening of soil and reseeding; Step 2: Control the extension and retraction of the telescopic component 2, and adjust the overall height of the seed box 3, its upper rotating shaft 4, I-beam 5, slider 7, and loosening blade 8 so that the loosening blade 8 is in contact with the ground soil but does not penetrate the soil; Step 3: The tractor pulls the frame 1 and moves it. When it moves to the grassland degradation area, the adjustment component is activated to drive the sliders 7 and the loosening blades 8 that are close to the minimum spacing to move away from each other radially along the I-beam 5, so that the loosening blades 8 are inserted into the soil of the degradation area. The drive motor is started to drive the loosening blades 8 to rotate and loosen the soil. During this period, grass seeds fall and are sown through the feeding cylinder 32. At the same time, the positioning and stabilization component is activated to position and stabilize the sliders 7 after each adjustment. Step 4: During the loosening and sowing process, when the grass seeds in the seeding box 3 at the upper end of the lower feed cylinder 32 are blocked, the drive unit is started to drive the rotating rod 34 to rotate, thereby breaking up the grass seeds in the seeding box 3 by rotating the arc bar 35, and then feeding the seeds for sowing.

Claims

1. A soil loosening and reseeding device for improving degraded grassland, comprising a frame (1), a telescopic component (2), and a seeding box (3), wherein the seeding box (3) is connected to the frame (1) via the telescopic component (2), characterized in that, The seed box (3) is provided with a rotating shaft (4) below, and multiple I-shaped cylinders (5) are evenly arranged on the rotating shaft (4). Multiple limiting grooves (6) are arranged radially on both sides of the I-shaped cylinders (5), and sliders (7) are slidably connected in the limiting grooves (6). A soil loosening knife (8) is installed on the slider (7). An adjustment component is also provided on the rotating shaft (4) to drive each slider (7) and soil loosening knife (8) to slide and adjust in the limiting grooves (6). The bottom of the seeding box (3) is provided with multiple feeding cylinders (32), and a rotating rod (34) is rotatably connected inside the feeding cylinder (32). The upper end of the rotating rod (34) is connected to a dispersing arc strip (35) for dispersing grass seeds inside the seeding box (3). The rotating shaft (4) is also equipped with a positioning and stabilizing component, which is used to position and stabilize each slider (7).

2. The soil loosening and reseeding device for improving degraded grassland according to claim 1, characterized in that, The adjustment assembly includes a servo motor (10), a rotating shaft (11), a threaded cylinder (12), a threaded ring (13), a collar (14), and a rotating plate (15). The rotating shaft (11) is located on both sides of the rotating shaft (4). The rotating shaft (11) rotates through each I-beam (5) and is connected to the output shaft end of the servo motor (10). The threaded cylinder (12) is fitted on the rotating shaft (11) on the outside of the I-beam (5). The threaded cylinders (12) on both sides of each I-beam (5) have opposite thread directions. The threaded ring (13) is threaded on the outside of the threaded cylinder (12). The collar (14) is connected to the threaded ring (13) and is slidably fitted on the outside of the rotating shaft (4). The two ends of the rotating plate (15) are rotatably connected to the slider (7) and the collar (14), respectively.

3. The soil loosening and reseeding device for improving degraded grassland according to claim 1, characterized in that, The I-beam (5) has a limiting hole (9) and each of the soil loosening blades (8) slides through the limiting hole (9) and extends to the outside of the I-beam (5).

4. The soil loosening and reseeding device for improving degraded grassland according to claim 1, characterized in that, The seed box (3) is equipped with a drive assembly for driving the rotating rod (34) to rotate. The drive assembly includes a telescopic component two (29), an L-shaped plate (30), a contact switch (31), a ring frame (33), a sprocket (37), a servo motor two (38), and a chain (39). The telescopic component two (29) is connected to the lower end of the seed box (3), the L-shaped plate (30) is connected to the lower end of the telescopic component two (29), and the contact switch (31) is connected to the two ends of the seed box (3). The ring frame (33) is rotated and fitted on the lower end of the feed cylinder (32) and fitted on the outside of the rotating rod (34). The second servo motor (38) is installed at the bottom of the seed box (3). The sprocket (37) is fitted on the outside of the ring frame (33) and the output shaft end of the second servo motor (38). The chain (39) is fitted on the outside of each sprocket (37). The contact switch (31) is electrically connected to the second servo motor (38).

5. A soil loosening and reseeding device for improving degraded grasslands according to claim 4, characterized in that, The positioning and stabilizing component includes a circular cavity (16), a disc (17), a positioning hole (19), a sliding hole (20), a through hole (21), a connecting rod (22), and an opening (23). Each circular cavity (16) is opened inside an I-beam (5). The discs (17) are arranged in pairs within the same circular cavity (16), and multiple positioning pins (18) are radially and equally spaced on opposite sides of the same group of discs (17). The positioning hole (19) is opened on the slider (7). A through groove (601) is provided between the limiting groove (6) and the circular cavity (16). The positioning pin (18) passes through the through groove (601) and is fitted into the positioning hole (19). The sliding hole (20)... A circular cavity (16) is opened on both sides of the first rotating shaft (4) and passes through it. The through hole (21) is eccentrically opened on the disk (17). The connecting rod (22) slides in the sliding hole (20) and passes through the through hole (21) to connect with the disk (17) on the same side of the adjacent circular cavity (16). The opening (23) is opened at both ends of the first rotating shaft (4) and is located on the radial symmetrical side of the first rotating shaft (4). The openings (23) at both ends pass through the sliding holes (20) opened on both sides of the first rotating shaft (4). A linkage component is provided between the L-shaped plate (30) and the connecting rod (22). The linkage component is used to drive the disk (17) to slide so as to drive the positioning pin (18) to cooperate with the positioning hole (19) for insertion.

6. A soil loosening and reseeding device for improving degraded grassland according to claim 5, characterized in that, The linkage assembly includes a trapezoidal rotating ring (25), a second circular ring (26), a guide slide rod (27), a spring (28), and an inclined block (36). The connecting rod (22) extends through the opening (23) that is connected to the respective sliding hole (20) and extends to the outside of the rotating shaft (4), and a first circular ring (24) is connected to the outer extension end. The trapezoidal rotating ring (25) is rotatably fitted on the outside of the first circular ring (24). The second circular ring (26) is fitted on the outside of the rotating shaft (4). The guide slide rod (27) is arrayed and connected to the second circular ring (26) and slidably fitted with the first circular ring (24). The spring (28) is fitted on the outside of the guide slide rod (27), and the two ends of the spring (28) are respectively connected to the first circular ring (24) and the second circular ring (26). The inclined block (36) is connected to the lower end of the L-shaped plate (30) and slides against the trapezoidal rotating ring (25).

7. A soil loosening and reseeding device for improving degraded grasslands according to claim 1, characterized in that, The seed box (3) is connected to two sides by mounting frames (301), and a slide rail (40) is connected to the mounting frame (301). A slide rail block (41) is slidably connected inside the slide rail (40), and a screw (42) is rotatably connected inside the slide rail (40). The screw (42) is threaded into the slide rail block (41). A mounting base (43) is connected to one side of the slide rail block (41), and a servo motor (44) is installed on the mounting base (43). The output end of the servo motor (44) is connected to a soil turning rod cylinder (45).

8. A soil loosening and reseeding device for improving degraded grasslands according to claim 1, characterized in that, The array of the dispersing arc strips (35) is arranged in multiple ways and connected to the rotating rod (34). The loosening blade (8) is bolted to the slider (7). The bottom of the seed box (3) is also connected to the ramp (46). The ramp (46) is located below each feeding cylinder (32) and above the loosening blade (8). The lower end of the feeding cylinder (32) is provided with an electromagnetic door.

9. A method for loosening soil and reseeding degraded grassland, said method being based on the apparatus according to any one of claims 1-8, characterized in that, The specific steps include: Step 1: Install the frame (1) onto the tractor via the connecting seat (101) and tow it to the pasture that needs improvement, loosening and reseeding; Step 2: Control the telescopic component 1 (2) to extend and retract, and adjust the overall height of the seed box (3) and its upper rotating shaft 1 (4), I-beam (5), slider (7) and loosening blade (8) so that the loosening blade (8) contacts the ground soil but does not penetrate the soil; Step 3: The tractor pulls the frame (1) to move. When it moves to the grassland degradation area, the adjustment component is activated to drive the sliders (7) and the loosening blades (8) that are close to the minimum distance to move away from each other along the radial direction of the I-beam (5), so that the loosening blades (8) are inserted into the soil of the degradation area. The drive motor is activated to drive the loosening blades (8) to rotate and loosen the soil. During this period, grass seeds are sown through the feeding cylinder (32). At the same time, the positioning and stabilization component is activated to position and stabilize the sliders (7) after each position is adjusted. Step 4: During the loosening and sowing process, when the grass seeds in the seeding box (3) at the top of the lower feed cylinder (32) are blocked, start the drive assembly to drive the rotating rod (34) to rotate, thereby breaking up the arc bar (35) to break up the grass seeds in the seeding box (3) and feeding the seeds for sowing.

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