A high-efficiency corn root stubble breaking device

Abstract

A high-efficiency corn stubble crushing device includes an outer shell with a triangular connecting frame at the front and a power input shaft mounted on the top. The outer shell houses a stubble cutting mechanism and a root crushing mechanism. The stubble cutting mechanism includes a first gearbox, a second gearbox, and a mounting plate. The first gearbox is mounted on the outer shell, and the power input shaft is connected to it. In summary, the stubble cutting mechanism utilizes the opposite rotation of two meshing gears to enable two shearing blades to reciprocate and cut the stubble, achieving high-efficiency crushing. Furthermore, the multi-stage gear telescopic structure achieves precise entry and exit of the disc blades at the root position through three-stage telescopic movement, minimizing soil disturbance and ensuring efficient corn stubble crushing while avoiding large-scale soil disturbance, making it highly practical.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery and equipment technology, specifically relating to a high-efficiency corn stubble crushing device. Background Technology

[0002] Incomplete crushing of corn stubble will prolong its decomposition rate, thus affecting the quality of the seedbed after sowing. Existing corn stubble crushing devices involve a large amount of soil disturbance during crushing, which can damage the soil structure and reduce the soil's water and fertilizer retention capacity. Summary of the Invention

[0003] The present invention aims to provide a high-efficiency corn stubble crushing device to solve the technical problem of large soil disturbance during the crushing of corn stubble in existing corn stubble crushing devices.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A high-efficiency corn stubble crushing device includes an outer shell, a triangular connecting frame at the front of the outer shell, a power input shaft at the top of the outer shell, and an above-ground stubble cutting mechanism and an underground root crushing mechanism inside the outer shell.

[0006] The ground stubble cutting mechanism includes a first gearbox, a second gearbox, and a mounting plate. The first gearbox is mounted on the outer casing, and the power input shaft is driven by the first gearbox. A first rotating shaft drives between the first gearbox and the second gearbox. A slide rail is fixed on the mounting plate, and two sliders are slidably mounted on the slide rail. Each slider has a handle fixed on it, and a shearing blade is fixed to the end of the handle. The shearing blades at the ends of the two handles form a combined cutting tool. A reciprocating drive mechanism is also provided on the mounting plate. The power output end of the second gearbox is connected to the reciprocating drive mechanism, which drives the two sliders to move on the slide rail in opposite directions.

[0007] The underground root crushing mechanism includes a third gearbox and a protective shell. An installation ring is fixed at the rear of the outer shell. The protective shell is rotatably installed inside the protective shell. A second rotating shaft is provided on the top of the protective shell. The first gearbox is connected to the third gearbox through the third rotating shaft. The power output end of the third gearbox is connected to the second rotating shaft.

[0008] The protective housing houses a motor, a fourth gearbox, a fifth gearbox, and a multi-stage gear telescopic structure. The motor's main shaft is connected to the fourth gearbox, and the fourth and fifth gearboxes are connected via a fourth rotating shaft. The multi-stage gear telescopic structure includes a load-bearing component, a first transmission component, a second transmission component, and a telescopic component. The load-bearing component is fixed inside the protective housing. A pull rod is fixed to the upper end of the first transmission component, and the pull rod passes vertically upward through the load-bearing component. A first crank-connecting rod is provided between the power output end of the fourth gearbox and the upper end of the pull rod. A disc cutter is provided at the lower end of the multi-stage gear telescopic structure.

[0009] Furthermore, the reciprocating drive mechanism includes a driving pulley, a driven pulley, and two gears. The driving pulley is located at the power output end of the second gearbox, and the two gears are rotatably mounted on the mounting plate. The driven pulley is coaxially arranged with one of the gears. The driving pulley and the driven pulley are connected by a belt, and the two gears mesh with each other.

[0010] The two gears have slots on their surfaces, which are arranged along the radial direction of the gears. Each tool handle has a cylindrical protrusion fixed at its end, and the two cylindrical protrusions are located in the slots on the surfaces of the two gears respectively.

[0011] Furthermore, the disc cutter includes a gear rod composite, a disc support base, a shank disc, a symmetrical support disc, an arc-shaped support disc, and a rotating opening and closing blade. The rotating opening and closing blade is mounted on the disc support base. The lower end of the first transmission component is connected to the shank disc, the second transmission component is connected to the symmetrical support disc, and the telescopic component is connected to the arc-shaped support disc. Five rotating opening and closing blades are provided. One end of the rotating opening and closing blade is hinged to the disc support base, and the other end of the rotating opening and closing blade is connected to the shank disc via a connecting rod.

[0012] The upper end of the gear rod composite extends upward through the bearing member. A reciprocating gear is provided at the upper end of the gear rod composite. A slide groove is also provided inside the protective shell, and a rack and pinion slider is provided in the slide groove. A second crank connecting rod is provided between the power output end of the fifth gearbox and the rack and pinion slider. Driven by the second crank connecting rod, the rack and pinion slider can reciprocate in the slide groove, and the reciprocating gear meshes with the rack and pinion slider.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention mainly includes a power input shaft, a stubble cutting mechanism, and a root crushing mechanism. The power input shaft provides power, and the stubble cutting mechanism utilizes the characteristic of two meshing gears rotating in opposite directions to enable two shearing blades to complete the reciprocating cutting of the stubble, achieving efficient damage. In addition, the multi-set gear-stage telescopic structure achieves precise entry and exit of the disc cutter at the root position through three-stage telescopic movement. At the same time, combined with the gear rod composite component driving the rotating opening and closing blade, the disc cutter efficiently shears and crushes the underground roots. Because the present invention performs efficient crushing both above ground and deep underground, the amount of soil disturbed is small. While ensuring efficient corn stubble crushing, it avoids large-scale soil turning, making it highly practical. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This invention relates to a high-efficiency crushing device for corn stubble;

[0016] Figure 2 This is a schematic diagram of the above-ground stubble cutting mechanism;

[0017] Figure 3 A schematic diagram of the underground root crushing mechanism;

[0018] Figure 4 This is a schematic diagram of the inner wall structure of the protective shell;

[0019] Figure 5 This is a schematic diagram of the structure of a disc-shaped cutting tool;

[0020] Figure 6 This is a structural schematic diagram of a disc cutting tool from another perspective. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described in detail below with reference to the embodiments.

[0023] like Figure 1-6 As shown, a specific embodiment of the high-efficiency corn stubble crushing device provided by the present invention is as follows:

[0024] A high-efficiency corn stubble crushing device includes an outer shell 1, a triangular connecting frame 2 at the front of the outer shell 1, a power input shaft 3 installed at the top of the outer shell 1, and an above-ground stubble cutting mechanism and an underground root crushing mechanism inside the outer shell 1.

[0025] The ground stubble cutting mechanism includes a first gearbox 4, a second gearbox 5, and a mounting plate 6. The first gearbox 4 is mounted on the outer casing 1, and the power input shaft 3 is connected to the first gearbox 4. A first rotating shaft 7 is connected between the first gearbox 4 and the second gearbox 5. A slide rail 8 is fixed on the mounting plate 6, and two sliders 9 are slidably mounted on the slide rail 8. Each slider 9 is fixed with a handle 10, and a shearing blade 11 is fixed to the end of the handle 10. The shearing blades 11 at the ends of the two handles 10 form a combined cutter 12. A reciprocating drive mechanism is also provided on the mounting plate 6. The power output end of the second gearbox 5 is connected to the reciprocating drive mechanism. The reciprocating drive mechanism drives the two sliders 9 to move on the slide rail 8, and the two sliders 9 move in opposite directions.

[0026] The underground root crushing mechanism includes a third gearbox 13 and a protective shell 14. An installation ring 15 is fixed at the rear of the outer shell 1. The protective shell 14 is rotatably installed in the installation ring 15. A second rotating shaft 16 is provided on the top of the protective shell 14. The first gearbox 4 and the third gearbox 13 are connected by a third rotating shaft 17. The power output end of the third gearbox 13 is connected to the second rotating shaft 16.

[0027] The protective shell 14 houses a motor 18, a fourth gearbox 19, a fifth gearbox 20, and a multi-stage gear telescopic structure. The main shaft of the motor 18 is connected to the fourth gearbox 19, and the fourth gearbox 19 and the fifth gearbox 20 are connected via a fourth rotating shaft 21. The multi-stage gear telescopic structure is a publicly available technology, and its specific structure is described in the utility model patent with patent publication number CN219136232U. It mainly includes a support member 22, a first transmission member 23, a second transmission member 24, and a telescopic member 25. The support member 22 is fixed inside the protective shell 14. A pull rod 26 is fixed to the upper end of the first transmission member 23, and the pull rod 26 passes vertically upward through the support member 22. A first crank connecting rod 27 is provided between the power output end of the fourth gearbox 19 and the upper end of the pull rod 26. A disc cutter 28 is provided at the lower end of the multi-stage gear telescopic structure.

[0028] The reciprocating drive mechanism includes a driving pulley 29, a driven pulley, and two gears 31. The driving pulley 29 is located at the power output end of the second gearbox 5. The two gears 31 are rotatably mounted on the mounting plate 6. The driven pulley is coaxially arranged with one of the gears 31. The driving pulley 29 and the driven pulley are connected by a belt 32, and the two gears 31 mesh with each other.

[0029] A slot 33 is provided on the wheel surface of the two gears 31. The slot 33 is arranged along the radial direction of the gears 31. A cylindrical protrusion is fixed at the end of each tool holder 10. The two cylindrical protrusions are respectively located in the slot 33 on the wheel surface of the two gears 31.

[0030] The power input shaft 3 transmits the input power to the first gearbox 4, which then transmits the power to the second gearbox 5 via the first rotating shaft 7. The second gearbox 5 drives two gears 31 to mesh and rotate via the driving pulley 29 and the driven pulley. The two gears 31 rotate in opposite directions, and the cylindrical protrusions are located in the grooves 33 on the surface of the gears 31. As the two gears 31 rotate, they drive the two cylindrical protrusions to move horizontally. The handle 10 and the slider 9 move on the slide rail 8, and the two handles 10 move in opposite directions. When the two handles 10 approach each other, the two shearing blades 11 form a shearing action to cut the corn stubble on the ground.

[0031] The disc cutter 28 includes a gear rod composite 34, a disc support base 35, a shank disc 36, a symmetrical support disc 37, an arc-shaped support disc 38, and a rotating opening and closing cutter 39. The rotating opening and closing cutter is mounted on the disc support base 35. The lower end of the first transmission component 23 is connected to the shank disc 36, the second transmission component 24 is connected to the symmetrical support disc 37, and the telescopic component 25 is connected to the arc-shaped support disc 38. Five rotating opening and closing cutters 39 are provided. One end of the rotating opening and closing cutter 39 is hinged to the disc support base 35, and the other end of the rotating opening and closing cutter 39 is connected to the shank disc 36 via a connecting rod 40.

[0032] The upper end of the gear rod composite 34 passes upward through the bearing member 22. A reciprocating gear 41 is provided at the upper end of the gear rod composite 34. A slide groove is also provided inside the protective shell 14. A rack and pinion slider 42 is provided in the slide groove. A second crank connecting rod 43 is provided between the power output end of the fifth gearbox 20 and the rack and pinion slider 42. Driven by the second crank connecting rod 43, the rack and pinion slider 42 can reciprocate in the slide groove. The reciprocating gear 41 meshes with the rack and pinion slider 42.

[0033] The first gearbox 4 transmits power to the third gearbox 13 via the third rotating shaft 17. The third gearbox 13 drives the protective shell 14 and its internal structure to rotate via the second rotating shaft 16. On the other hand, the motor 18 drives the pull rod 26 to reciprocate up and down via the fourth gearbox 19 and the first crank connecting rod 27. The pull rod 26 drives the first transmission component 23, enabling the multi-gear graded telescopic structure to complete the telescopic action. In addition, the fourth gearbox 19 transmits power to the fifth gearbox 20 via the fourth rotating shaft 21. The fifth gearbox 20 drives the rack slider 42 to slide back and forth in the slide groove via the second crank connecting rod 43. During the sliding process, it drives the reciprocating gear 41 to rotate in both directions. The gear rod composite component 34 follows the reciprocating gear 41 to rotate, driving the handle disc 36 to rotate. The handle disc 36 pulls the rotating opening and closing blade 39 via the connecting rod 40, thereby realizing the opening and closing of the disc blade 28 and efficiently damaging the underground root.

[0034] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency corn stubble crushing device, characterized in that: It includes an outer shell, a triangular connecting frame at the front of the outer shell, a power input shaft at the top of the outer shell, and an above-ground stubble cutting mechanism and an underground root crushing mechanism inside the outer shell. The ground stubble cutting mechanism includes a first gearbox, a second gearbox, and a mounting plate. The first gearbox is mounted on the outer casing, and the power input shaft is driven by the first gearbox. A first rotating shaft drives between the first gearbox and the second gearbox. A slide rail is fixed on the mounting plate, and two sliders are slidably mounted on the slide rail. Each slider has a handle fixed on it, and a shearing blade is fixed to the end of the handle. The shearing blades at the ends of the two handles form a combined cutting tool. A reciprocating drive mechanism is also provided on the mounting plate. The power output end of the second gearbox is connected to the reciprocating drive mechanism, which drives the two sliders to move on the slide rail in opposite directions. The underground root crushing mechanism includes a third gearbox and a protective shell. An installation ring is fixed at the rear of the outer shell. The protective shell is rotatably installed inside the protective shell. A second rotating shaft is provided on the top of the protective shell. The first gearbox is connected to the third gearbox through the third rotating shaft. The power output end of the third gearbox is connected to the second rotating shaft. The protective housing houses a motor, a fourth gearbox, a fifth gearbox, and a multi-stage gear telescopic structure. The motor's main shaft is connected to the fourth gearbox, and the fourth and fifth gearboxes are connected via a fourth rotating shaft. The multi-stage gear telescopic structure includes a load-bearing component, a first transmission component, a second transmission component, and a telescopic component. The load-bearing component is fixed inside the protective housing. A pull rod is fixed to the upper end of the first transmission component, and the pull rod passes vertically upward through the load-bearing component. A first crank-connecting rod is provided between the power output end of the fourth gearbox and the upper end of the pull rod. A disc cutter is provided at the lower end of the multi-stage gear telescopic structure.

2. The high-efficiency corn stubble crushing device according to claim 1, characterized in that: The reciprocating drive mechanism includes a driving pulley, a driven pulley, and two gears. The driving pulley is located at the power output end of the second gearbox. The two gears are rotatably mounted on the mounting plate. The driven pulley is coaxially arranged with one of the gears. The driving pulley and the driven pulley are connected by a belt, and the two gears mesh with each other. The two gears have slots on their surfaces, which are arranged along the radial direction of the gears. Each tool handle has a cylindrical protrusion fixed at its end, and the two cylindrical protrusions are located in the slots on the surfaces of the two gears respectively.

3. The high-efficiency corn stubble crushing device according to claim 1, characterized in that: The disc cutter includes a gear rod composite, a disc support base, a shank disc, a symmetrical support disc, an arc-shaped support disc, and a rotating opening and closing cutter. The rotating opening and closing cutter is mounted on the disc support base. The lower end of the first transmission component is connected to the shank disc, the second transmission component is connected to the symmetrical support disc, and the telescopic component is connected to the arc-shaped support disc. Five rotating opening and closing cutters are provided. One end of the rotating opening and closing cutter is hinged to the disc support base, and the other end of the rotating opening and closing cutter is connected to the shank disc via a connecting rod. The upper end of the gear rod composite passes upward through the bearing member. A reciprocating gear is provided at the upper end of the gear rod composite. A slide groove is also provided inside the protective shell. A rack and pinion slider is provided in the slide groove. A second crank connecting rod is provided between the power output end of the fifth gearbox and the rack and pinion slider. Driven by the second crank connecting rod, the rack and pinion slider can reciprocate in the slide groove. The reciprocating gear meshes with the rack and pinion slider.

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