Soil turning device suitable for land reclamation

Abstract

The invention relates to the technical field of soil turning devices, in particular to a soil turning device suitable for land reclamation, which comprises a frame, a central transmission case and a rotary soil turning cutter shaft, the central transmission case is connected with a power output shaft of a tractor, and the frame is fixedly connected with the central transmission case. Through the arrangement of components such as the connecting and smashing mechanism and the power transmission and matching relation between the rotary soil turning cutter shaft and all the components, the connecting and smashing mechanism can drive the shearing roller to forcibly roll and shear soil blocks which are turned up preliminarily by means of the rotating power of the rotary soil turning cutter shaft; the spiral conveying blade is used for pushing soil blocks to axially move and uniformly shear the soil blocks, so that the effect that the device can finish soil deep scarification and efficient secondary crushing in one-time operation is achieved, and the fine crushing degree and uniformity of the soil are remarkably improved; the problems that a traditional soil turning device is prone to generating large-particle-size soil blocks in slightly dry or heavy soil, and the earth surface flatness is poor are solved.

Description

Technical Field

[0001] This invention relates to the field of soil turning devices, and more specifically to a soil turning device suitable for land reclamation. Background Technology

[0002] The soil turning device in land consolidation is the core equipment used for tilling soil in land consolidation. It is usually composed of components such as frame, drive mechanism, and tilling blades. It can break up the soil compaction layer through mechanical power, turn over the deep soil and the topsoil, improve soil permeability and water and fertilizer retention capacity, and create suitable soil conditions for subsequent planting, ecological restoration or standardized land consolidation.

[0003] Traditional soil turning devices rely on the rotation of the cutter shaft to cut and turn the soil, achieving the basic functions of deep soil loosening, breaking up the structure, and covering crop residues. However, due to the limitations of their structural principle and operating method, these devices struggle to achieve uniform breaking up in dry or heavy clay soils, easily forming hard clods and coarse fragments with significantly different particle sizes. This results in insufficient soil fineness after tilling and poor surface flatness, failing to meet the stringent requirements for uniformity and compaction in subsequent precision sowing or seedling cultivation. Therefore, specialized machinery is often needed for secondary or even multiple soil breaking and leveling operations after tilling. This not only increases additional equipment scheduling costs and fuel consumption but also exacerbates soil compaction due to repeated compaction by agricultural machinery, ultimately reducing the actual effectiveness of tilling operations. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a soil turning device suitable for land reclamation, which can effectively solve the problems of uneven soil clod breaking, poor surface flatness, and the need for multiple tillage operations, which are inefficient and easily aggravate soil compaction when the soil turning device is working in dry or heavy clay soil.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a soil-turning device suitable for land reclamation, comprising: a frame, a central transmission box connected to the power take-off shaft of a tractor, and a rotary tillage cutter shaft. The frame is fixedly connected to the central transmission box, the drive end of the central transmission box is fixedly connected to the rotary tillage cutter shaft, and the rotary tillage cutter shaft is rotatably connected to the frame. The device also includes: A connecting crushing mechanism for secondary crushing of soil clods and a jet-driven soil-breaking mechanism for aeration and crushing of soil are provided. The connecting crushing mechanism includes two sets of drive pulleys, which are fixedly connected to the rotating soil-turning blade shaft. Two sets of driven pulleys are provided on one side of the two sets of drive pulleys, and the two sets of driven pulleys are rotatably connected to the frame. The two sets of driven pulleys are connected to the two sets of drive pulleys by belt drive. A drive rod is fixedly connected between the two sets of driven pulleys. Several sets of drive bevel gears are fixedly connected to the surface of the drive rod. Several sets of driven bevel gears mesh on one side of the several sets of drive bevel gears, and the several sets of driven bevel gears are rotatably connected to the frame. A shearing roller is fixedly connected to the bottom of the several sets of driven bevel gears, and a spiral conveying blade is fixedly connected to the surface of the shearing roller. A support and clamping assembly is provided on the side of the shearing roller away from the rotating soil-turning blade shaft.

[0006] Furthermore, the support and clamping assembly includes several sets of clamping plates, and the clamping plates are located between the shearing rollers. The clamping plates have a partition groove on the side near the rotating tillage blade shaft. A connecting plate is fixedly connected to the top of the clamping plate, and the connecting plate is fixedly connected to the frame.

[0007] Furthermore, the air jet splitting mechanism includes several sets of eccentric wheels, which mesh with a transmission bevel gear via bevel gears. A piston ring is hinged to the top of each eccentric wheel via a connecting rod. A compression column is slidably connected to the surface of the piston ring, and the compression column is fixedly connected to the frame and rotatably connected to the eccentric wheels. An air storage box is provided on one side of the compression column, and the air storage box is connected to the compression column via a one-way air supply valve. The air outlet of the air storage box is connected to a rotary joint via a pipe, and the rotary joint is rotatably connected to the rotary tiller shaft. The other end of the rotary joint is connected to several sets of nozzles via a pipe, and the several sets of nozzles are fixedly connected to the tiller blades of the rotary tiller shaft. A trigger sealing assembly is provided on one side of each nozzle, and a reciprocating leveling assembly is provided on the side of the piston ring away from the eccentric wheel.

[0008] Furthermore, the top of the compression column is connected to a one-way air intake valve, and a shielding filter ring is provided on the top of the one-way air intake valve, and the shielding filter ring is fixedly connected to the frame.

[0009] Furthermore, the trigger sealing assembly includes several sets of fixing plates, and the sets of fixing plates are respectively fixedly connected to the turning blade of the rotating turning blade shaft. An air jet groove is provided on one side of the fixing plate, and the air jet groove is located on one side of the nozzle. A movable plate is slidably connected inside the air jet groove, and a fitting groove is provided on one side of the movable plate. The movable plate is elastically connected to the air jet groove by a spring. A contact block is fixedly connected to one side of the movable plate. A micro switch is provided on the top of one side of the movable plate, and the micro switch is fixedly connected to the fixing plate. The micro switch is electrically connected to the nozzle by a wire.

[0010] Furthermore, a storage groove is provided on one side of the fixed plate, and the interior of the storage groove is slidably connected to the contact block. A soil discharge groove is provided on the top of the fixed plate, and a brush plate is fixedly connected to the side of the movable plate near the nozzle.

[0011] Furthermore, the reciprocating leveling assembly includes a movable rod, which is slidably connected to the interior of a compression column and fixedly connected to a piston ring. A movable plate is provided on the side of the movable rod away from the piston ring. A support plate is slidably connected to one side of the movable plate, and the support plate is elastically connected to the movable plate via a return spring. The support plate is fixedly connected to the frame. Several sets of movable columns are fixedly connected to the bottom of the movable plate. A leveling rod is elastically connected to the interior of each movable column via a spring, and the leveling rod is slidably connected to the interior of the movable column. The bottom of the leveling rod is inclined. A smoothing plate is slidably connected to the surface of each movable column.

[0012] Furthermore, a push plate is fixedly connected to the top of the smearing plate, and the push plate is slidably connected to the interior of the movable plate. The top of the push plate is elastically connected to the movable plate through a push spring, and the top of the movable plate is connected to the air storage tank through a control valve.

[0013] Furthermore, a support column is provided on the side of the movable rod near the movable plate, and the support column is fixedly connected to the movable plate. A push rod is slidably connected inside the support column, and the push rod is fixedly connected to the support plate and slidably connected to the movable plate. Several sets of moving blocks are provided on one side of the movable rod, and the moving blocks are slidably connected to the inside of the support column. The moving blocks are elastically connected to the support column through springs. The side of the moving blocks near the push rod is inclined.

[0014] Furthermore, several sets of leveling rods are fixedly connected by synchronization blocks. Two sets of leveling rods are hinged to each other with sliders. A limit plate is provided on the inner side of the slider and is fixedly connected to the frame. A wave groove is provided on the outer side of the limit plate and is slidably connected to the slider. A trigger switch is fixedly connected to the side of the wave groove away from the frame. The trigger switch is electrically connected to a reset nozzle through a wire. The reset nozzle is connected to the air storage box and is fixedly connected to the inside of the wave groove.

[0015] Beneficial effects The technical solution provided by this invention has the following advantages compared with the known prior art: I. This invention, by setting up a connecting crushing mechanism and other components, and through the power transmission and cooperation between the rotating soil turning blade shaft and each component, enables the connecting crushing mechanism to drive the shearing roller to forcibly crush and shear the initially turned soil clods with the rotational power of the rotating soil turning blade shaft. The spiral conveyor blades push the soil clods axially and shear them evenly, thereby achieving the effect of deep soil loosening and efficient secondary crushing in one operation. This significantly improves the fineness and uniformity of the soil and solves the problem that traditional soil turning devices are prone to producing large-diameter soil clods and poor surface flatness in dry or heavy clay soils.

[0016] II. This invention, by setting up an air-jet soil-cracking mechanism, utilizes a driven bevel gear to drive an eccentric wheel, connecting rod, and piston ring to reciprocate within a compression column, compressing and storing air in an air storage tank. The air is then delivered to the nozzle on the tilling blade via a rotary joint. Combined with a trigger sealing assembly to control the timing of the air jet, high-pressure gas can be precisely sprayed the instant the tilling blade cuts into the soil. This utilizes the air wedge effect to pre-crack compacted soil, reducing traction resistance and achieving deeper and smoother tillage. Simultaneously, the reciprocating motion of the piston ring drives the reciprocating leveling assembly to rake and smooth the broken surface, further improving the uniformity of surface flatness and soil compaction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the entire invention; Figure 3 This is a cross-sectional schematic diagram of the connecting crushing mechanism of the present invention; Figure 4 This is a schematic cross-sectional view of the jet-splitting mechanism of the present invention. Figure 5 This is a schematic cross-sectional view of the shielding filter ring of the present invention; Figure 6 This is a cross-sectional schematic diagram of the trigger sealing assembly of the present invention; Figure 7 This is a schematic cross-sectional view of the trigger sealing assembly of the present invention. Figure 8 This is a schematic cross-sectional view of the reciprocating leveling component of the present invention. Figure 9 For the present invention Figure 8Enlarged view of point A in the middle; Figure 10 This is a cross-sectional schematic diagram of the part limiting plate of the present invention.

[0019] Reference numerals: 1. Frame; 2. Central transmission box; 3. Rotary tillage cutter shaft; 4. Connecting crushing mechanism; 41. Transmission pulley; 42. Driven pulley; 43. Transmission rod; 44. Transmission bevel gear; 45. Driven bevel gear; 46. Shearing roller; 47. Support and clamping assembly; 471. Clamping plate; 472. Connecting plate; 5. Air jet cracking mechanism; 51. Eccentric wheel; 52. Piston ring; 53. Compression column; 54. Air storage tank; 55. Rotary joint; 56. Nozzle; 57. Trigger sealing assembly; 571. Solid... 572. Fixed plate; 573. Air jet groove; 574. Moving plate; 575. Contact block; 576. Micro switch; 5777. Reciprocating leveling assembly; 581. Moving rod; 582. Moving plate; 583. Support plate; 584. Moving column; 585. Leveling rod; 586. Smoothing plate; 6. One-way air intake valve; 7. Filter ring shield; 8. Brush plate; 9. Push plate; 10. Support column; 11. Push rod; 12. Moving block; 13. Slider; 14. Limit plate; 15. Wave groove; 16. Trigger switch; 17. Reset nozzle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. 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.

[0021] The present invention will be further described below with reference to embodiments.

[0022] See attached document Figure 1-10 A soil turning device suitable for land reclamation includes: a frame 1, a central transmission box 2 connected to the power take-off shaft of a tractor, and a rotary tillage blade shaft 3. The frame 1 is used to support and connect the core components, providing a stable support and bearing foundation for the entire device. The frame 1 is fixedly connected to the central transmission box 2, and the drive end of the central transmission box 2 is fixedly connected to the rotary tillage blade shaft 3, and the rotary tillage blade shaft 3 is rotatably connected to the frame 1. The system also includes a connecting crushing mechanism 4 for secondary crushing of soil clods. The connecting crushing mechanism 4 includes two sets of transmission pulleys 41, which are fixedly connected to the rotating tiller shaft 3. Two sets of driven pulleys 42 are provided on one side of each set of transmission pulleys 41, and are rotatably connected to the frame 1. The driven pulleys 42 and the transmission pulleys 41 are connected by a belt drive. A transmission rod 43 is fixedly connected between the driven pulleys 42. Several sets of transmission bevel gears 44 are fixedly connected to the surface of the transmission rod 43. Several sets of driven bevel gears 45 mesh on one side of each set of transmission bevel gears 44. Wheel 45 is rotatably connected to frame 1. Several sets of driven bevel gears 45 are fixedly connected to the bottom of shearing rollers 46, and spiral conveying blades are fixedly connected to the surface of the shearing rollers 46. A support and clamping assembly 47 is provided on the side of the shearing rollers 46 away from the rotating tiller shaft 3. The central transmission box 2 is fixedly connected to frame 1 and to the tractor's power take-off shaft. Its drive end transmits the tractor's power to the rotating tiller shaft 3. Simultaneously, the rotating tiller shaft 3 remains rotatably connected to frame 1, thereby driving the rotating tiller shaft 3 to rotate stably. First, the rotating tiller shaft 3 cuts into the soil under power drive, completing the cutting, lifting, and preliminary crushing operations, achieving both deep soil loosening to improve aeration and... It can effectively cover surface residues, laying the foundation for subsequent soil refinement; then, as the rotating tiller shaft 3 continues to rotate, its fixed transmission pulley 41 also rotates synchronously, driving the driven pulley 42 on the frame 1 to rotate via belt drive, which in turn drives the transmission rod 43 between the two sets of driven pulleys 42 to rotate. The transmission bevel gear 44 on the surface of the transmission rod 43 meshes with the driven bevel gear 45, transmitting power to the shearing roller 46, causing the shearing roller 46 to rotate accordingly; during the rotation, the spiral conveying blades on the surface of the shearing roller 46 push the turned soil clods to move axially, which can work with the shearing roller 46 to form forced compaction and shearing of the soil clods. At the same time, the shearing roller 46... The support and clamping assembly 47 on one side is fixed to the frame 1 by the connecting plate 472. The clamping plate 471 contained therein is located between the shearing rollers 46 and is used to control the discharge gap to ensure that the processed soil clods are all crushed to below the set size. This not only achieves efficient secondary crushing of the soil and significantly improves the soil fineness, but also solves the problem of large differences in soil clod particle size and poor surface flatness when traditional soil turning devices operate in dry or heavy clay soils. There is no need to call special equipment for secondary land preparation, which reduces equipment scheduling costs and fuel consumption, and avoids the situation where agricultural machinery repeatedly enters the land to crush and aggravate soil compaction. This provides uniform and loose soil conditions for subsequent precision sowing or seedling cultivation. The supporting clamping assembly 47 is used to limit the discharge gap of the shearing rollers 46 and guide the flow of soil clods to ensure uniform crushing. It includes several sets of clamping plates 471, which are located between the shearing rollers 46. A dividing groove is provided on the side of the clamping plate 471 near the rotating turning blade shaft 3. A connecting plate 472 is fixedly connected to the top of the clamping plate 471 and is also fixedly connected to the frame 1. The clamping plate 471 is securely fixed to the frame 1 via the connecting plate 472, positioned precisely between the two sets of shearing rollers 46. The dividing groove on the side near the rotating turning blade shaft 3 allows the sharp surfaces between the dividing groove and the clamping plate 471 to provide a certain degree of impact and crushing to the turned-up soil clods. The clamping plate 471 guides the soil clods to flow orderly towards the shearing rollers 46 on both sides, effectively preventing soil clods from leaking around the shearing rollers 46 before being crushed, which would result in insufficient crushing of the soil clods. At the same time, a controllable discharge gap is formed between the clamping plate 471 and the shearing rollers 46. Only soil clods that have been fully crushed and sheared by the shearing rollers 46 and have reached the set size can pass through smoothly. This not only eliminates the problem of large-diameter soil clod residue from the source, but also further improves the overall uniformity of soil crushing. It solves the problem of large soil clod size when traditional soil turning devices operate in dry or heavy clay soils, laying a good foundation for subsequent leveling operations. It also makes the treated soil more able to meet the requirements of soil fineness for subsequent precision sowing or seedling cultivation. See attached document Figure 1-7The air-jet soil-splitting mechanism 5 generates and directionally injects high-pressure gas to pre-crack compacted soil using the air wedge effect to reduce tillage resistance. It includes several sets of eccentric wheels 51, which mesh with a transmission bevel gear 44 via bevel gears. A piston ring 52 is hinged to the top of each eccentric wheel 51 via a connecting rod. A compression column 53 is slidably connected to the surface of the piston ring 52 and is fixedly connected to the frame 1. The compression column 53 is rotatably connected to the eccentric wheels 51. An air storage tank 54 is located on one side of the compression column 53 and is connected to the compression column 53 via a one-way air supply valve. The air outlet of the air storage tank 54 is connected to a rotary joint 55 via a pipe, and the rotary joint 55 is rotatably connected to the rotary tiller shaft 3. The other end of the rotary joint 55 is connected to several sets of nozzles 56 via a pipe, and the several sets of nozzles 56 are fixedly connected to the tiller blades of the rotary tiller shaft 3. A trigger sealing assembly 57 is provided on one side of the nozzle 56, which is used to automatically trigger air jetting when the tiller blades cut into the soil. A reciprocating leveling assembly 58 is provided on the side of the piston ring 52 away from the eccentric wheel 51, which is used to level the broken surface. As the driven bevel gear 45 rotates, its top meshing... The bevel gear drives the eccentric wheel 51 to rotate synchronously. The eccentric wheel 51 drives the piston ring 52 to slide back and forth in the compression column 53, which is fixedly connected to the frame 1, via a connecting rod. When the piston ring 52 slides, it draws in air through the one-way air inlet valve 6 at the top of the compression column 53 and compresses it. The compressed high-pressure gas is then transported to the air storage tank 54 for storage via a one-way air delivery valve. The one-way air delivery valve can effectively prevent gas backflow and ensure air storage efficiency. The high-pressure gas in the air storage tank 54 is then transported through a pipeline to the rotary joint 55, which is rotatably connected to the rotating tiller shaft 3, ensuring that the gas delivery is not disturbed when the rotating tiller shaft 3 rotates. The spray is delivered to the nozzle 56, which is fixedly connected to the tilling blade. The timing of the spray from the nozzle 56 is precisely controlled by the trigger sealing component 57, and it is activated only when the tilling blade cuts into the soil. During high-pressure gas injection, the air wedge effect is used to pre-crack the dry or heavy clay soil, break up the soil compaction layer, and significantly reduce the tractor traction resistance. This solves the problems of difficulty and insufficient depth in tilling on hard surfaces by traditional devices, and enables deeper and smoother tillage. At the same time, the reciprocating sliding of the piston ring 52 will synchronously drive the reciprocating leveling component 58 to operate, which will refine the surface after secondary crushing, further improve the surface flatness, and avoid the formation of gullies or bumps. The top of the compression column 53 is connected to a one-way air intake valve 6, and a shielding filter ring 7 is installed on the top of the one-way air intake valve 6. The shielding filter ring 7 is fixedly connected to the frame 1. The core function of the one-way air intake valve 6 is to smoothly draw in air when the piston ring 52 slides back and forth, providing a continuous and stable air source for gas compression. At the same time, the one-way air intake valve 6 has a reverse sealing function, which can effectively prevent the high-pressure gas after compression from flowing back and ensure the gas compression efficiency. The shielding filter ring 7, which is fixedly connected to the frame 1, covers the top of the one-way air intake valve 6. The shielding filter ring 7 can filter dust through the filter screen, which can prevent dirt, debris and other impurities raised during operation from entering the valve body, avoiding the one-way air intake valve 6 from clogging. This ensures that the jet-splitting mechanism 5 always receives a stable air supply, ensuring the continuity and reliability of high-pressure gas jetting operation. See attached document Figure 1-7 The trigger sealing assembly 57 is used to automatically trigger air jetting when the tilling blade cuts into the soil. It includes several sets of fixed plates 571, each fixedly connected to the tilling blade of the rotating tilling blade shaft 3. An air jet groove 572 is provided on one side of each fixed plate 571, located on one side of the nozzle 56. A movable plate 573 is slidably connected inside the air jet groove 572, and a fitting groove is provided on one side of the movable plate 573. The movable plate 573 is elastically connected to the air jet groove 572 via a spring. A contact block 574 is fixedly connected to one side of the movable plate 573. A micro switch 575 is provided on the top of one side of the movable plate 573. The micro switch 575 is prior art and is fixedly connected to the fixed plate 571. The micro switch 575 is also electrically connected to the nozzle 56 via a wire. The fixed plate 571 is securely connected to the tilling blade of the rotating tilling blade shaft 3, and the movable plate 573 is slidably installed inside the air jet groove 572 on one side of the fixed plate 571. 73. The top of the movable plate 573 is elastically connected to the air jet channel 572 via a spring. In the non-operating state, the elastic force of the spring will push the movable plate 573 to fit against the air jet channel 572, effectively blocking soil and debris from entering and preventing the nozzle 56 from becoming clogged and affecting subsequent use. When the tillage blade cuts into the soil, the contact block 574 fixed on one side of the movable plate 573 first contacts the soil and is squeezed, which in turn pushes the movable plate 573 to slide along the air jet channel 572, allowing the fitting groove to move to one side of the air jet channel 572. At the same time, the movable plate 573 will trigger the micro switch 575 on the top of the air jet channel 572, starting the nozzle 56 to spray high-pressure gas. This ensures that the high-pressure gas is precisely sprayed only at the critical moment when the tillage blade cuts into the soil. Meanwhile, the continued movement of the movable plate 573 will shield and protect the air jet channel 572, which not only avoids gas waste but also maximizes the effect of air wedge cracking the soil, achieving precise timing control of high-pressure gas spray and avoiding problems such as inaccurate gas spray timing and easy clogging of the nozzle 56. The fixed plate 571 has a storage groove on one side, and the inside of the storage groove is slidably connected to the contact block 574. The top of the fixed plate 571 has a soil discharge groove. A brush plate 8 is fixedly connected to the side of the movable plate 573 near the nozzle 56. The storage groove on one side of the fixed plate 571 allows the contact block 574 to be promptly collected when it slides to its limit position due to soil pressure, effectively limiting its movement and preventing excessive displacement that could damage the movable plate 573. When the movable plate 573 is pushed, it simultaneously moves the soil discharge groove, preventing it from connecting with the air jet duct 572 and avoiding damage during operation. When a large amount of soil enters, and the fixed plate 571 and the moving plate 573 rotate with the rotating soil-turning blade shaft 3 to the upward reset stage, the contact block 574 is no longer pushed by the soil, and the spring will push the moving plate 573 and the contact block 574 to reset. At the same time, a brush plate 8 is fixed on the side of the moving plate 573 near the nozzle 56. During the reciprocating sliding of the moving plate 573, the brush plate 8 can continuously wipe and clean the surface of the nozzle 56. At this time, the soil discharge groove is facing downward, which can quickly discharge the small amount of soil cleaned by the brush plate 8 and previously entered the air jet groove 572, further cleaning the nozzle 56 and avoiding the problem of nozzle 56 clogging. See attached document Figure 1-9The reciprocating leveling assembly 58 is used to level the broken ground surface. It includes a movable rod 581, which is slidably connected to the inside of a compression column 53 and fixedly connected to a piston ring 52. A movable plate 582 is provided on the side of the movable rod 581 away from the piston ring 52. A support plate 583 is slidably connected to one side of the movable plate 582 and elastically connected to the movable plate 582 via a return spring. The support plate 583 is fixedly connected to the frame 1. Several sets of movable columns 584 are fixedly connected to the bottom of the movable plate 582. A leveling rod 585 is elastically connected to the inside of each movable column 584 via a spring and slidably connected to the inside of the movable column 584. The bottom of the leveling rod 585 is inclined. A smearing plate 586 is slidably connected to the surface of the movable column 584. The movable rod 581 and the piston ring... The piston ring 52 is fixedly connected and slides synchronously back and forth within the compression column 53, thereby driving the movable plate 582 to reciprocate stably on the support plate 583 fixed to the frame 1. The support plate 583 provides a continuous restoring force to the movable plate 582 through the return spring, ensuring smooth and stable reciprocating motion. Among the several sets of movable columns 584 fixed inside the movable plate 582, the leveling rod 585 is always inserted into the ground under the elastic force of the spring. Its inclined bottom acts like a rake, which can effectively push away the soil clods remaining on the ground and fill the gullies formed after tilling. At the same time, the smearing plate 586 slidably connected to the surface of the movable column 584 will simultaneously smooth and level the ground surface. This not only solves the problem of uneven ground surface and gully residue after the operation of traditional tilling devices, but also achieves the initial leveling and moderate compaction of the ground surface after crushing, laying a solid foundation for subsequent fine leveling operations. The top of the sizing plate 586 is fixedly connected to a push plate 9, which is slidably connected to the inside of the movable plate 582. The top of the push plate 9 is elastically connected to the movable plate 582 via a push spring. The top of the movable plate 582 is connected to the air storage box 54 via a control valve. The push plate 9 on the top of the sizing plate 586 and the movable plate 582 are elastically connected via a push spring, allowing the sizing plate 586 to adaptively adjust its height according to the actual undulations of the ground surface, always maintaining a close fit with the ground surface. At the same time, the top of the movable plate 582 is connected to the air storage box 54 via a control valve, which can flexibly adjust the air supply pressure from the air storage box 54 to the area of ​​the sizing plate 586 according to different soil types or operational needs, thereby controlling the pressure of the sizing plate 586 on the ground surface. This avoids the surface soil from being too loose and prone to collapse or too tight and affecting seed germination, ultimately achieving a suitable compaction of the surface soil to form a flat, fine seedbed that meets the requirements of precision sowing. Among them, a support column 10 is provided on the side of the movable rod 581 near the movable plate 582, and the support column 10 is fixedly connected to the movable plate 582. A push rod 11 is slidably connected inside the support column 10, and the push rod 11 is fixedly connected to the support plate 583 and slidably connected to the movable plate 582. Several sets of moving blocks 12 are provided on one side of the movable rod 581, and the moving blocks 12 are slidably connected to the inside of the support column 10. The moving blocks 12 are elastically connected to the support column 10 through springs. The side of the moving blocks 12 near the push rod 11 is inclined. The side of the movable rod 581 near the movable plate 582 is provided with a support column 10 fixedly connected to the movable plate 582. The push rod 11 is fixed on the support plate 583 and slides through the movable plate 582 and the support column 10. Driven by the piston ring 52, the movable rod 581 pushes the moving blocks 12 inside the support column 10, thereby causing the support column 10 to move together with the movable rod 581. When plate 582 moves to its limit position, the movable block 12 inside the support column 10 is in contact with the push rod 11 under the action of the spring. With the guidance of the inclined surface, the movable block 12 will slide, allowing the movable rod 581 to pass smoothly through the movable block 12. At this time, the movable rod 581 can no longer limit the movement of the support column 10 and the movable plate 582 through the movable block 12. The movable plate 582 will move back and forth quickly under the elastic force of the return spring, thereby driving the leveling rod 585 and the smearing plate 586 to quickly return to their original positions. In this process, not only can the large clods of soil remaining on the ground be strongly pushed, causing them to be splashed around the shearing roller 46 for further crushing, but also some soil clods can be crushed by the rapid pushing force, effectively improving the overall fineness of the soil, avoiding the problem of insufficient surface flatness caused by large clods of soil remaining, reducing the need for additional land preparation work, and further enhancing the uniformity of soil crushing, providing more suitable soil conditions for subsequent precision sowing or seedling cultivation. Among them, several sets of leveling rods 585 are fixedly connected by synchronization blocks. The inner sides of two sets of leveling rods 585 are hinged to sliders 13. The inner side of sliders 13 is provided with limit plates 14, and the limit plates 14 are fixedly connected to the frame 1. The outer side of the limit plates 14 is provided with wave grooves 15, and the wave grooves 15 are slidably connected to sliders 13. A trigger switch 16 is fixedly connected to the side of the wave grooves 15 away from the frame 1. The trigger switch 16 is electrically connected to a reset nozzle 17 through wires, and the reset nozzle 17 is connected to the air storage box 54. The reset nozzle 17 is also fixedly connected to the inside of the wave grooves 15. Multiple leveling rods 585 are rigidly connected by a synchronization block, ensuring the synchronous consistency of each set of leveling rods 585 in reciprocating motion, effectively avoiding mechanical jamming or stress concentration caused by asynchronous movements. Two sets of leveling rods 585 that are close to each other on the inner side have sliders 13 hinged to their inner sides. The sliders 13 slide with a limiting plate 14 fixed on the frame 1. The surface of the limiting plate 14 has a wave groove 15, and the sliders 13 are embedded in the wave groove 15 and slide within it. When the leveling rods 585 drive the sliders 13 to reciprocate, the undulating contour of the wave groove 15 guides the sliders 13 to produce regular lateral displacement, thereby transforming the reciprocating motion of the sliders 13 into a composite motion with lateral oscillation. This lateral oscillation is transmitted to the leveling rods 585 through the connecting rod, so that the leveling rods 585 have added left and right oscillation on the basis of the original back and forth reciprocating motion, forming a composite effect of lateral sorting and longitudinal leveling of the soil, which significantly improves the soil's fineness and the uniformity of the surface flatness. When the slider 13 slides to its limit position within the wave groove 15, it presses the trigger switch 16 fixed within the groove. The trigger switch 16 controls the activation of the reset nozzle 17 via a wire. The reset nozzle 17 is connected to the air storage tank. When the trigger switch 16 is turned on, the reset nozzle 17 sprays airflow directionally towards the slider 13, providing auxiliary thrust. This effectively solves the problems of insufficient thrust and delayed reset when relying solely on spring reset, ensuring that the mechanism can reset quickly and reliably in heavy clay soil, thereby guaranteeing the continuity and stability of the leveling action. At the same time, pneumatic-assisted reset reduces the dependence on the performance of the reset spring, improving the adaptability and durability of the mechanism under harsh working conditions.

[0023] It is worth noting that in this technical solution, all gas flow path connections are sealed using a sealing structure to prevent leakage, forming a reliable dynamic or static sealing system. This effectively eliminates gas leakage and ensures the pressure stability and energy transmission efficiency of the energy storage system. It is also worth noting that the specific selection of springs and other elastic elements and key components involved in this technical solution is adapted to actual operating conditions (such as pressure, frequency, and load) to meet the performance requirements for long-term stable operation of the equipment (and can be replaced accordingly based on actual application needs). Furthermore, the sliding and movement of each moving part are achieved through reasonable limiting and guiding structures in existing technologies (not fully shown in the figure) to ensure coordinated function and reliable operation of each mechanism. In addition, conventional protective or additional limiting structures can be added to relevant components according to specific usage environments and requirements.

[0024] Working principle: When in use, the tractor's power take-off shaft transmits power to the rotary tiller shaft 3 through the central transmission box 2. Since the frame 1 is fixedly connected to the central transmission box 2 and the rotary tiller shaft 3 is rotatably connected to the frame 1, the rotary tiller shaft 3 can rotate stably and cut into the soil, completing the initial cutting, deep loosening and surface stubble covering of the soil, laying the foundation for subsequent soil refining treatment. Subsequently, the rotation of the rotary tiller shaft 3 synchronously drives the transmission pulleys 41 fixed at both ends to rotate. Through belt transmission, the driven pulleys 42 on the frame 1 rotate, which in turn drives the transmission rod 43 between the two sets of driven pulleys 42 to rotate. The transmission bevel gear 44 on the surface of the transmission rod 43 meshes with the driven bevel gear 45, transmitting power to the shearing roller 46 to make it rotate. During rotation, the spiral conveying blades on the surface of the shearing roller 46 push the turned soil clods to move axially, forming a forced compaction and shearing of the soil clods in conjunction with the shearing roller 46. The shearing rollers 46 are connected by a connecting plate 472. The clamping plate 471 fixed on the frame 1 has a dividing groove on the side near the rotating soil turning blade shaft 3. The dividing groove can crush the turned soil clods by the sharp surface between it and the clamping plate 471. The clamping plate 471 can guide the soil clods to flow orderly to the shearing rollers 46 on both sides, which can effectively prevent the soil clods from leaking around the shearing rollers 46 without being crushed, resulting in insufficient crushing of the soil clods. At the same time, a controllable discharge gap is formed between the clamping plate 471 and the shearing rollers 46 to ensure that the processed soil clods are crushed to below the set size, realizing efficient secondary crushing of the soil and significantly improving the fineness and uniformity of the soil. Meanwhile, the rotation of the transmission pulley 41 drives the eccentric wheel 51 fixed at its top to rotate synchronously via the bevel gear. The eccentric wheel 51 drives the piston ring 52 to slide back and forth within the compression column 53 fixed to the frame 1 via the connecting rod. When the piston ring 52 slides, it compresses the air drawn in by the one-way air intake valve 6 at the top of the compression column 53. The filter ring 7 at the top of the one-way air intake valve 6 can prevent soil and debris from entering the valve body and avoid blockage. The compressed high-pressure gas is delivered to the air storage tank 54 for storage through the one-way air delivery valve. The high-pressure gas in the air storage tank 54 is then delivered through the pipeline to the rotary joint 55 that is rotatably connected to the rotating tiller shaft 3, ensuring that the gas delivery is not disturbed when the rotating tiller shaft 3 rotates. Finally, it is delivered to the nozzle fixedly connected to the tiller. 56. When the tilling blade cuts into the soil, the contact block 574 on one side of the moving plate 573 first contacts the soil and is squeezed, pushing the moving plate 573 to slide along the air jet groove 572, so that the fitting groove moves to the nozzle 56 side of the air jet groove 572. At the same time, the moving plate 573 contacts the micro switch 575 and triggers it, so that the nozzle 56 sprays high-pressure gas, using the air wedge effect to pre-crack the compacted soil, reduce the tractor traction resistance, and achieve deeper and smoother tillage. The storage groove on the fixed plate 571 can limit the movement of the contact block 574. The brush plate 8 cleans the surface of the nozzle 56 when the moving plate 573 slides back and forth. The soil discharge groove discharges a small amount of soil in the air jet groove 572 when the moving plate 573 is reset, effectively preventing the nozzle 56 from being blocked. Finally, the reciprocating sliding of the piston ring 52 within the compression column 53 synchronously drives the movable rod 581 fixed thereto to move. The movable rod 581 pushes the moving block 12 within the support column 10, which, in conjunction with the push rod 11, drives the movable plate 582 to reciprocate on the support plate 583 fixed to the frame 1. The return spring on the support plate 583 provides a continuous return force to the movable plate 582, ensuring smooth and stable reciprocating motion. Within the movable column 584 fixed inside the movable plate 582, the leveling rod 585 is always inserted into the ground under the elastic force of the spring, and its inclined setting... The bottom of the support column 584 can push away residual soil clods and fill in the trenches formed after tilling. The sizing plate 586, which is slidably connected to the surface of the movable column 584, adapts to the undulations of the ground through the push spring between the top push plate 9 and the movable plate 582, and always keeps in contact with the ground. At the same time, the top of the movable plate 582 is connected to the air storage box 54 through a control valve, which can adjust the air supply pressure according to the soil type and operation requirements, and control the pressure of the sizing plate 586 on the ground. When the movable plate 582 moves to the limit position, the movable block 12 inside the support column 10, under the action of the spring, pushes the plate 586 to the ground. The inclined surfaces of rods 11 slide against each other, allowing the movable rod 581 to pass smoothly through the moving block 12 (at this point, the movable rod 581 can no longer push the support column 10 through the moving block 12). The movable plate 582 quickly resets under the action of the return spring, which not only strongly pushes the large clods of soil remaining on the ground surface, causing them to splash around the shearing roller 46 for secondary crushing, but also directly crushes some soil clods, further improving the soil's fineness. While the movable plate 582 drives the leveling rod 585 to reciprocate back and forth, the sliding block 13 and the wave on the limiting plate 14... With the cooperation of the groove 15, the leveling rod 585 is also given a regular left and right swing, forming a compound combing action, which significantly improves the uniformity of soil leveling; in addition, when the slider 13 moves to the limit position and triggers the switch 16, the reset nozzle 17 will spray air to assist the mechanism to quickly and reliably reset, effectively solving the problem of weak reset in heavy clay soil, and ensuring the continuity and stability of the operation; finally, the surface is finely leveled and compacted, forming a flat, fine, and compacted seedbed ready for sowing, which meets the needs of subsequent precision sowing or seedling cultivation.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soil-turning device suitable for land reclamation, comprising a frame (1), a central transmission box (2) connected to the power take-off shaft of a tractor, and a rotating soil-turning cutter shaft (3), characterized in that: The frame (1) is fixedly connected to the central transmission box (2), the drive end of the central transmission box (2) is fixedly connected to the rotary tillage cutter shaft (3), and the rotary tillage cutter shaft (3) is rotatably connected to the frame (1), and also includes: The connecting crushing mechanism (4) for secondary crushing of soil clods and the air jet cracking mechanism (5) for aeration and soil breaking are provided. The connecting crushing mechanism (4) includes two sets of transmission pulleys (41), which are fixedly connected to the rotating soil turning blade shaft (3). Two sets of driven pulleys (42) are provided on one side of the two sets of transmission pulleys (41), and the two sets of driven pulleys (42) are rotatably connected to the frame (1). The two sets of driven pulleys (42) are connected to the two sets of transmission pulleys (41) by belt drive. A transmission rod (43) is fixedly connected between the two sides. Several sets of transmission bevel gears (44) are fixedly connected to the surface of the transmission rod (43). Several sets of driven bevel gears (45) are meshed on one side of the several sets of transmission bevel gears (44). The several sets of driven bevel gears (45) are rotatably connected to the frame (1). A shearing roller (46) is fixedly connected to the bottom of the several sets of driven bevel gears (45). A spiral conveying blade is fixedly connected to the surface of the shearing roller (46). A support and clamping assembly (47) is provided on the side of the shearing roller (46) away from the rotating soil turning blade shaft (3).

2. The soil-turning device suitable for land reclamation according to claim 1, characterized in that, The support and clamping assembly (47) includes several sets of clamping plates (471), and the clamping plates (471) are located between the shearing rollers (46). The clamping plates (471) have a partition groove on the side near the rotating soil turning blade shaft (3). A connecting plate (472) is fixedly connected to the top of the clamping plate (471), and the connecting plate (472) is fixedly connected to the frame (1).

3. A soil-turning device suitable for land reclamation according to claim 1, characterized in that, The jet-driven soil-splitting mechanism (5) includes several sets of eccentric wheels (51), which mesh with a transmission bevel gear (44) via bevel gears. A piston ring (52) is hinged to the top of each eccentric wheel (51) via a connecting rod. A compression column (53) is slidably connected to the surface of the piston ring (52), and the compression column (53) is fixedly connected to the frame (1). The compression column (53) is rotatably connected to the eccentric wheel (51). An air storage box (54) is provided on one side of the compression column (53), and the air storage box (54) is supplied with air in one direction. The valve is connected to the compression column (53). The air outlet of the air storage box (54) is connected to a rotary joint (55) through a pipe. The rotary joint (55) is rotatably connected to the rotary tiller shaft (3). The other end of the rotary joint (55) is connected to several sets of nozzles (56) through a pipe. The several sets of nozzles (56) are fixedly connected to the tiller of the rotary tiller shaft (3). A trigger sealing assembly (57) is provided on one side of the nozzle (56). A reciprocating leveling assembly (58) is provided on the side of the piston ring (52) away from the eccentric wheel (51).

4. A soil-turning device suitable for land reclamation according to claim 3, characterized in that, The top of the compression column (53) is connected to a one-way air intake valve (6), and a shielding filter ring (7) is provided on the top of the one-way air intake valve (6), and the shielding filter ring (7) is fixedly connected to the frame (1).

5. A soil-turning device suitable for land reclamation according to claim 3, characterized in that, The trigger sealing assembly (57) includes several sets of fixing plates (571), and the several sets of fixing plates (571) are respectively fixedly connected to the turning blade of the rotating turning blade shaft (3). A jet groove (572) is provided on one side of the fixing plate (571), and the jet groove (572) is located on one side of the nozzle (56). A moving plate (573) is slidably connected inside the jet groove (572), and a fitting groove is provided on one side of the moving plate (573). The moving plate (573) is elastically connected to the jet groove (572) by a spring. A contact block (574) is fixedly connected to one side of the moving plate (573). A micro switch (575) is provided on the top of one side of the moving plate (573), and the micro switch (575) is fixedly connected to the fixing plate (571). The micro switch (575) is electrically connected to the nozzle (56) by a wire.

6. A soil-turning device suitable for land reclamation according to claim 5, characterized in that, The fixed plate (571) has a storage groove on one side, and the inside of the storage groove is slidably connected to the contact block (574). The fixed plate (571) has a soil discharge groove on the top. The movable plate (573) is fixedly connected to a brush plate (8) on the side near the nozzle (56).

7. A soil-turning device suitable for land reclamation according to claim 3, characterized in that, The reciprocating leveling assembly (58) includes a movable rod (581), which is slidably connected to the inside of the compression column (53) and fixedly connected to the piston ring (52). A movable plate (582) is provided on the side of the movable rod (581) away from the piston ring (52). A support plate (583) is slidably connected to one side of the movable plate (582), and the support plate (583) is elastically connected to the movable plate (582) through a return spring. The support plate (583) is fixedly connected to the frame (1). Several sets of movable columns (584) are fixedly connected to the bottom of the movable plate (582). A leveling rod (585) is elastically connected to the inside of the movable column (584) through a spring. The leveling rod (585) is slidably connected to the inside of the movable column (584), and the bottom of the leveling rod (585) is inclined. A smearing plate (586) is slidably connected to the surface of the movable column (584).

8. A soil-turning device suitable for land reclamation according to claim 7, characterized in that, The top of the smearing plate (586) is fixedly connected to a push plate (9), and the push plate (9) is slidably connected to the interior of the movable plate (582). The top of the push plate (9) is elastically connected to the movable plate (582) through a push spring. The top of the movable plate (582) is connected to the gas storage tank (54) through a control valve.

9. A soil-turning device suitable for land reclamation according to claim 7, characterized in that, A support column (10) is provided on the side of the movable rod (581) near the movable plate (582), and the support column (10) is fixedly connected to the movable plate (582). A push rod (11) is slidably connected inside the support column (10), and the push rod (11) is fixedly connected to the support plate (583). The push rod (11) is slidably connected to the movable plate (582). Several sets of moving blocks (12) are provided on one side of the movable rod (581), and the moving blocks (12) are slidably connected to the inside of the support column (10). The moving blocks (12) are elastically connected to the support column (10) through springs. The side of the moving blocks (12) near the push rod (11) is inclined.

10. A soil-turning device suitable for land reclamation according to claim 7, characterized in that, Several sets of leveling rods (585) are fixedly connected by a synchronization block. Two sets of leveling rods (585) are hinged to a slider (13) on their inner side. A limit plate (14) is provided on the inner side of the slider (13), and the limit plate (14) is fixedly connected to the frame (1). A wave groove (15) is provided on the outer side of the limit plate (14), and the wave groove (15) is slidably connected to the slider (13). A trigger switch (16) is fixedly connected to the side of the wave groove (15) away from the frame (1). The trigger switch (16) is electrically connected to a reset nozzle (17) through a wire. The reset nozzle (17) is connected to the air storage box (54), and the reset nozzle (17) is fixedly connected to the inside of the wave groove (15).

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