A machine for returning straw organic fertilizer to the field by deep tillage and stubble retention in dry slope land

Abstract

The invention belongs to the technical field of field return machines, and specifically discloses a dry slope strip stubble deep plowing straw organic fertilizer return machine, comprising: a cutting part, the cutting part includes a rotating shaft and a plurality of cutting tools, the cutting tools are assembled on the rotating shaft; the rotating shaft has an axis, and an agricultural vehicle moves and operates on the field along the extension direction of the axis; a first shell body is circumferentially extended outside the rotating shaft with the axis as the center; a first material guide port and a second material guide port for the field surface soil to pass through are formed on the first shell body; the first shell body moves between adjacent rows of straw roots along the extension direction; a second shell body, the second shell body is connected to the first shell body along the end portion perpendicular to the extension direction, and the upper surface of the second shell body is fixedly assembled with the agricultural vehicle; a through notch is formed on the second shell body; the machine has the following advantages: reducing soil and water loss by retaining straw roots, optimizing soil structure and fertility, avoiding operation obstacles, and improving field operation efficiency and soil management effect.

Description

Technical Field

[0001] The invention relates to the technical field of field return machines, and in particular to a machine for returning straw organic fertilizer to the field through deep tillage of stubble strips on dry sloping land. Background Art

[0002] Existing straw return machines usually use an indiscriminate carpet-style operation method in farmland operations. This method will clean up the crop roots left on the surface after cutting the straw. Although this method can make the surface look neater, it brings significant technical problems. First, the original plant roots are completely removed and lose their fixing effect on the soil. The soil surface becomes loose and easily eroded by wind and water flow, leading to increased soil erosion. Especially in dry slope areas, the soil is more susceptible to erosion, and the cleaning of crop residues makes this problem more serious.

[0003] In addition, the looseness of the soil surface will also affect the effect of returning straw to the field. Due to the lack of vegetation and root protection, the soil surface is easily blown by the wind after the operation, resulting in the straw returning to the field being unable to effectively cover and integrate into the soil, resulting in the failure of returning to the field. This not only affects the replenishment of soil organic matter and the improvement of soil structure, but also has an adverse effect on the growth of subsequent crops.

[0004] Therefore, a machine for returning straw organic fertilizer to the field by deep tillage and stubble retention in dry slope strips is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The present invention aims to provide a dry sloping land strip stubble deep plowing straw organic fertilizer returning machine to the field, so as to solve or improve the above-mentioned technical problems of soil loosening, soil erosion and poor returning effect caused by the indiscriminate carpet-like operation mode of existing straw returning machines in farmland operations.

[0006] In view of this, a first aspect of the present invention is to provide a machine for returning straw and organic fertilizer to the field by deep tillage with stubble in dry sloping land strips.

[0007] The first aspect of the present invention provides a dry slope strip stubble deep tillage straw organic fertilizer return to the field machine, comprising: a cutting part, mounted on an agricultural vehicle; the cutting part comprises a rotating shaft and a plurality of cutting tools, the cutting tools being mounted on the rotating shaft; the rotating shaft has an axis, the agricultural vehicle moves on the field along the extension direction of the axis; during the movement of the agricultural vehicle, the rotating shaft drives all the cutting tools to move circumferentially with the axis as the axis center; a first shell is circumferentially extended outside the rotating shaft with the axis as the center; along the extension direction, a hole for allowing the surface soil of the field to pass is formed on the first shell. A first material guide port and a second material guide port, and the first material guide port and the second material guide port are respectively connected to the inner cavity of the first shell; the first shell moves between adjacent rows of straw roots along the extension direction to obtain the surface soil of the field between adjacent rows of straw roots, and the rotating shaft and the cutting tool are located in the inner cavity; a second shell, the second shell is connected to the first shell along the end perpendicular to the extension direction, and the upper surface of the second shell is fixedly assembled with the agricultural vehicle; a through notch opening downward is formed on the second shell, and the through notch is used for allowing the part of the straw roots that is higher than the field to pass through when the first shell moves.

[0008] In any of the above technical solutions, when the agricultural vehicle is moving and operating on a field, the axis is parallel to the field surface; the outer bottom wall of the first shell has a first bottom edge along the extension direction, and there is an angle between the first bottom edge and the field surface; the cutting edge head of the cutting tool forms a circumferential trajectory during the circumferential motion, and the circumferential trajectory is parallel to the field surface along the second bottom edge of the extension direction.

[0009] In any of the above technical solutions, the outer bottom wall of the first shell is provided with a plurality of first blanking holes in the longitudinal direction; along the extension direction, the longitudinal height of the first blanking holes gradually increases, and the first blanking holes are located between the first material guide port and the second material guide port.

[0010] In any of the above technical solutions, the lowest point of the first material guide port is lower than the lowest point of the second material guide port; a cutting edge is provided on the circumferential edge of the first material guide port, and the cutting edge is used to guide the surface soil of the field into the inner cavity along the extension direction.

[0011] In any of the above technical solutions, the first blanking hole is provided on the outer bottom wall of the first shell body close to the second shell body.

[0012] In any of the above technical solutions, the first shell is provided with a second material drop hole along the longitudinal direction, the second material drop hole corresponds to the first material drop hole along the longitudinal direction, and the second material drop hole is used to introduce the returned material into the inner cavity.

[0013] In any of the above technical solutions, the cutting tool includes an elastic rod body, and the elastic rod body is used to mix the straw located in the inner cavity, the field surface soil and the field return material.

[0014] In any of the above technical solutions, the cutting tool also includes a connecting frame for installing the elastic rod body, and the connecting frame is connected to the rotating shaft; the elastic rod bodies on the same connecting frame correspond to each other along the extension direction, and a protrusion is formed on the inner wall surface of the first shell between adjacent first blanking holes, and the protrusion is adapted to the elastic rod body.

[0015] In any of the above technical solutions, a blade is fixed to the top surface of the through-notch, and a plurality of the blades are arranged along the extending direction.

[0016] In any of the above technical solutions, a lifting ring is installed on the upper surface of the second shell, and the second shell is lifted on the agricultural vehicle through the lifting ring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By retaining the straw and roots during field operations, the complete removal of the root system in traditional carpet-style operations is avoided, helping to maintain the soil's fixation effect and reducing soil erosion caused by loose soil.

[0019] The first shell and the second shell in the machine design are used together, so that the part of the straw roots that are higher than the field can pass smoothly through the specially designed through-notch, reducing the physical contact between the machine and the straw and avoiding damage to the straw roots, thereby keeping the soil surface clean and the straw effectively utilized; because the machine allows the retention of organic-rich straw roots while cutting the soil, it helps to supplement soil organic matter and improve soil structure, thereby improving soil fertility and crop growth conditions.

[0020] It allows the straw roots to pass smoothly, avoiding the operation obstacles and low efficiency problems that conventional machines may encounter due to the straw roots.

[0021] Additional aspects and advantages of embodiments according to the present invention will become apparent in the following description or may be learned through practice of embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2It is a schematic diagram of the rotating shaft and its connection structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the second housing and its connection structure of the present invention;

[0026] Figure 4 is a side view of the present invention;

[0027] Figure 5 This is a schematic diagram of the agricultural vehicle of the present invention operating in a field.

[0028] in, Figure 1-Figure 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0029] 1 cutting part, 101 rotating shaft, 102 cutting tool, 1021 second bottom edge, 1022 elastic rod body, 1023 connecting frame, 103 ring body, 104 guide plate, 2 first shell body, 201 first material guide port, 202 second material guide port, 203 inner cavity, 204 first bottom edge, 205 first blanking hole, 206 cutting edge, 207 second blanking hole, 208 protrusion, 3 second shell body, 301 through notch, 302 fixed plate body, 303 blade, 4 lifting ring, 5 arc baffle, 6 blanking cavity. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0032] See also Figure 1-Figure 5 The following describes a machine for returning straw and organic fertilizer to the field by deep tillage and stubble retention in dry sloping land in some embodiments of the present invention.

[0033] The embodiment of the first aspect of the present invention provides a dry slope land strip stubble deep tillage straw organic fertilizer return to the field machine. In some embodiments of the present invention, such as Figure 1-Figure 5 As shown, the field returning machine includes:

[0034] The cutting part 1 is mounted on the agricultural vehicle; the cutting part 1 includes a rotating shaft 101 and a plurality of cutting tools 102, and the cutting tools 102 are mounted on the rotating shaft 101; the rotating shaft 101 has an axis, and the agricultural vehicle moves on the field along the extension direction of the axis; when the agricultural vehicle moves, the rotating shaft 101 drives all the cutting tools 102 to move circumferentially with the axis as the axis, and the direction in which the cutting tools 102 move to cut the straw is perpendicular to the moving direction of the agricultural vehicle, and the straw cut by the cutting part 1 is the discarded straw placed on the field surface after the agricultural implement operation.

[0035] The first shell 2 is circumferentially extended outside the rotating shaft 101 with the axis as the center; along the extension direction, the first shell 2 is formed with a first material guide port 201 and a second material guide port 202 for the surface soil of the field to pass through, and the first material guide port 201 and the second material guide port 202 are respectively connected to the inner cavity 203 of the first shell 2; the first shell 2 moves between adjacent rows of straw roots along the extension direction to obtain the surface soil of the field between adjacent rows of straw roots, and the rotating shaft 101 and the cutting tool 102 are located in the inner cavity 203; the surface soil of the field and the straw inverted in the field can be processed by the first shell 2 and the cutting part 1, while the bottom and roots of the straw fixed in the field by the roots are spared, so that the stubble belt can be protected from erosion, soil consolidation and moisture conservation, and the plowing belt can be water-stored, protected from erosion, moisture conservation and fertilization.

[0036] The second shell 3 is connected to the first shell 2 along the end portion perpendicular to the extension direction, and the upper surface of the second shell 3 is fixedly assembled with the agricultural vehicle; a through notch 301 opening downward is formed on the second shell 3, and the through notch 301 is used for allowing the portion of the straw roots above the field to pass through when the first shell 2 moves. The second shell 3 is used to connect the two first shells 2 and pass the straw roots between the two first shells 2 to avoid processing the straw roots together with the straw stems cut by harvesting tools.

[0037] The present invention provides a dry slope strip stubble deep tillage straw organic fertilizer returning machine, the main function of the cutting part 1 is to efficiently cut and crush the waste straw on the surface of the field. The long and messy straw is cut into small sections by the high-speed rotating cutting tool 102, which is convenient for subsequent soil mixing and decomposition, and improves the effect of returning the straw to the field. Since the movement direction of the cutting tool 102 is perpendicular to the travel direction, the cutting part 1 only processes the surface straw, avoiding damage to the soil and crop stubble, retaining the soil fixation effect, and preventing soil erosion. The rotating shaft 101 is connected to the power system of the agricultural vehicle, which is the core component of the cutting part 1 and is responsible for transmitting power to the cutting tool 102 so that it rotates circumferentially with the axis as the center. The rotating shaft 101 provides a stable rotating axis 101 center for the cutting tool 102, ensuring that the tool remains balanced during high-speed operation, reducing vibration and wear, and extending the service life of the equipment. The cutting tool 102 is directly involved in the cutting and crushing of the straw. The design of the tool takes into account sharpness and wear resistance, and can adapt to straw in various states, including dry, wet, hard or soft, to ensure the cutting effect. Multiple cutting tools 102 are evenly assembled on the rotating shaft 101 to ensure that the straw is cut in all directions and without dead angles during the rotation process, thereby improving the quality and efficiency of the operation. The agricultural vehicle provides a mobile basis for the cutting part 1, and moves forward on the field along the extension direction of the axis of the rotating shaft 101, so that the cutting part 1 can cover the entire operating area and realize large-scale continuous operation. The power system of the vehicle not only drives its own movement, but also provides necessary power support for the rotation of the rotating shaft 101 and the cutting tool 102 to ensure the normal operation of the equipment.

[0038] The rotation of the rotating shaft 101 directly drives the cutting tool 102 to make it move circumferentially with the axis as the center. The stability and precision of the rotating shaft 101 directly affect the operating state of the cutting tool 102. The close combination of the two ensures the efficiency and quality of straw cutting. The design of the cutting part 1 organically combines the rotating shaft 101 and the cutting tool 102 to form a whole, which not only simplifies the structure, but also improves the reliability and maintenance convenience of the equipment. The cutting tool 102 is evenly assembled on the rotating shaft 101, and moves synchronously with the rotation of the rotating shaft 101 to ensure continuous cutting of the straw on the surface of the field, avoid omissions and repetitions, and improve work efficiency. The movement direction of the cutting tool 102 is perpendicular to the travel direction of the vehicle, so that during the process of the vehicle moving forward, the tool can cut a wider range of straw horizontally, expand the operation coverage, and reduce the number of back and forth operations. The forward speed of the agricultural vehicle matches the rotation speed of the cutting tool 102 to ensure the stability and uniformity of the cutting effect. The stable movement of the vehicle provides a good working environment for the cutting part 1. The cut straw fragments remain on the surface of the field or are mixed into the soil by subsequent soil treatment equipment, increasing the soil organic matter content, improving soil structure, and increasing soil fertility and water retention.

[0039] The first shell 2 wraps around the rotating shaft 101 and the cutting tool 102 to form a closed working space, preventing the cutting tool 102 from directly contacting the external environment and the roots of crops, protecting the root system and the bottom stems of the plants from damage. The first material guide port 201 and the second material guide port 202 on the shell allow the soil on the surface of the field and the straw lying on the field to enter the inner cavity 203, providing sufficient materials for the processing of the cutting tool 102. The shell moves between the straw roots of adjacent rows, cleverly avoiding the bottom and roots of the straw fixed to the field by the roots, ensuring the integrity of the stubble area.

[0040] The first material guide port 201 and the second material guide port 202 are material entry channels, allowing the field surface soil and fallen straw to smoothly enter the shell cavity 203 for processing by the cutting tool 102. The material guide port also serves to ventilate and discharge the processed materials, preventing blockage in the shell and ensuring the continuous and efficient operation of the cutting tool 102. The rotating shaft 101 is connected to the power system of the agricultural vehicle, driving the cutting tool 102 to rotate circumferentially around the axis as the center, to achieve cutting and crushing of the materials entering the shell cavity 203. As the rotating shaft 101 center of the cutting tool 102, the rotating shaft 101 ensures that the tool remains balanced during high-speed operation, reduces vibration and wear, and improves the safety and efficiency of the operation. Driven by the rotating shaft 101, the cutting tool 102 cuts and crushes the field surface soil and fallen straw entering the shell cavity 203, reducing the volume of the material and promoting rapid decomposition and absorption after returning to the field. The rotation of the tool not only cuts the material, but also produces a stirring effect, so that the crushed straw is fully mixed with the soil, thereby improving the organic matter content and fertility of the soil.

[0041] The first shell 2 provides a protective barrier for the cutting part 1 (rotating shaft 101 and cutting tool 102) to prevent the external environment from affecting the mechanical parts, and at the same time protect the root system and bottom stems of the crop from being damaged by the cutting tool 102. The shell introduces the surface soil and fallen straw of the field into the inner cavity 203 through the material guide port, and the cutting tool 102 cuts and crushes these materials in the shell. The two work closely together to achieve efficient material processing. The connection design between the material guide port and the inner cavity 203 ensures that the material can enter and discharge smoothly, prevents blockage, and maintains the continuous operation of the cutting tool 102. The position and size of the material guide port make the incoming material evenly distributed in the inner cavity 203 of the shell, and the cutting tool 102 can fully process the material and improve work efficiency. The rotating shaft 101 drives the cutting tool 102 to rotate, and the close connection between the two ensures the effective transmission of power. The evenly installed cutting tool 102 maintains the balance of the rotating shaft 101 and reduces vibration during operation. Avoidance and protection: The shell moves between the straw roots in adjacent rows, avoiding the bottom and roots of the straw fixed in the soil, protecting the root system of the crop and maintaining the structural stability of the soil. Through the design of the shell's travel path, the area that needs to be treated (fallen straw and surface soil) and the area that needs to be retained (straw roots) are distinguished, so that the stubble belt can prevent erosion and soil consolidation and moisture conservation, and the tillage belt can store water, prevent erosion, retain moisture and cultivate fertilizer. The cutting tool 102 synchronously cuts and crushes the soil and straw entering the shell cavity 203, accelerating the decomposition of the straw and the release of nutrients.

[0042] The second shell 3 is used as a structural connector, and is connected to the two first shells 2 along the end perpendicular to the extension direction, integrating the left and right first shells 2 into a whole, thereby enhancing the structural stability of the machine. The upper surface of the second shell 3 is fixedly assembled with the agricultural vehicle, ensuring a firm connection between the machine and the vehicle, and providing the necessary support and power transmission path during the operation. The through notch 301 on the second shell 3 that opens downward provides space for the portion of the straw roots that are above the field surface to pass through, thereby avoiding damage to the straw roots by the machine, retaining the soil's fixing effect and soil and water conservation capacity, and the through notch 301 allows the portion of the straw roots that are above the field surface to pass smoothly during the operation of the machine, thereby preventing the cutting or crushing of the stubble, and protecting the root system and bottom stems of the crop. By setting the through notch 301, the resistance or jamming caused by the collision of the machine with the straw roots during operation is avoided, and the continuity and efficiency of the operation are ensured. The second shell 3 connects the two first shells 2 to form a whole in the spatial layout, which improves the overall strength and rigidity of the machine, reduces the risk of mechanical vibration and loose parts, and realizes simultaneous operation of a larger area of ​​field by connecting the two first shells 2, improves the operation efficiency, and reduces the number of back and forth shuttles. The design of the second shell 3 enables the machine to avoid the straw roots, prevents them from being processed together with the straw stems cut after harvesting, retains the soil protection function of the stubble belt, and only operates on the fallen straw and surface soil that need to be processed, which improves the pertinence and efficiency of the treatment and avoids unnecessary energy consumption and soil disturbance.

[0043] In summary, the strip stubble operation method retains the straw roots and part of the stubble, which helps to maintain the integrity and stability of the soil structure. By leaving the crop root system, soil erosion and water loss can be effectively reduced, while enhancing the soil's resistance to wind and water flow; the first shell 2 and the second shell 3 of the machine are designed with precise material guiding and avoidance functions in mind, ensuring that only the straw and surface soil on the ground are cut and processed without damaging the underground root system. In addition, the through-notch 301 design of the second shell 3 provides a space that allows the straw root part to pass safely to prevent the machine from causing damage to it during operation; in addition to straw cutting and returning to the field, the machine also performs deep soil plowing and applies organic fertilizer. This functional combination effectively increases the soil's water storage capacity, improves the soil's water retention, and also enhances the soil's anti-erosion ability.

[0044] In any of the above embodiments, Figure 2 As shown, when the agricultural vehicle is moved on the field for operation, the axis is parallel to the field surface.

[0045] The outer bottom wall of the first shell 2 has a first bottom edge 204 along the extension direction, and an angle α is formed between the first bottom edge 204 and the field surface. The value range of the angle α is 8° to 20°, which allows the front end of the outer bottom wall of the first shell 2 to dig the soil, and a gradually enlarged material drop cavity 6 along the extension direction is formed between the rear end of the outer bottom wall of the first shell 2 and the soil, so that the internal mixed material of the inner cavity 203 gradually falls out to the field surface.

[0046] The cutting edge 206 of the cutting tool 102 forms a circumferential track during the circumferential motion, and the second bottom edge 1021 along the extension direction of the circumferential track is parallel to the field surface, so that the second bottom edge 1021 and the first bottom edge 204 have the same angle α, which can gradually break up and cut the main body of the straw and mix and break up the soil lumps. In this process, the mixed material is gradually raised in the inner cavity 203.

[0047] In this embodiment, the outer bottom wall of the first shell 2 has a first bottom edge 204 along the extension direction, and an angle α is formed between the edge and the field surface, and the value range is 8° to 20°. This design enables the front end of the outer bottom wall of the first shell 2 to effectively dig the surface soil of the field during movement, which helps to break the surface layer of the soil and improve the air permeability and water permeability of the soil; due to the existence of the angle α, a gradually enlarged material cavity 6 is formed between the rear end of the outer bottom wall of the first shell 2 and the soil along the extension direction. This material cavity 6 allows the mixed material in the inner cavity 203 to gradually fall out to the field surface, thereby promoting the uniform distribution and backfilling of the cut straw and soil inside. The design of the inner cavity 203 allows the entering soil and straw to be effectively cut and stirred under the action of the cutting tool 102, and evenly backfilled to the field surface through the material cavity 6, increasing the organic matter content of the soil and improving the soil structure.

[0048] The front end of the first housing 2 breaks the hardened soil layer through the digging function and increases the looseness of the soil, while the rear end blanking cavity 6 ensures that the soil and straw after cutting and mixing can be evenly distributed on the field surface. This design of front end digging and rear end blanking optimizes the soil processing and improvement process; the cutting tool 102 in the inner cavity 203 crushes the straw and mixes it with the soil, and the mixed material gradually falls back to the field through the designed blanking cavity 6, which not only improves the working efficiency, but also ensures the uniformity of soil processing and promotes the overall improvement of soil quality; the power provided by the agricultural vehicle is transmitted to the cutting tool 102 through the rotating shaft 101, and the cutting tool 102 performs efficient operation in the first housing 2. The design of the angle α not only affects the digging depth and effect of the soil, but also affects the moving stability and working smoothness of the machine on the field.

[0049] The head of the cutting edge 206 is designed to maintain a consistent depth with the field surface during its movement trajectory, which ensures the uniformity and depth consistency of the cutting, and helps to comprehensively and evenly cut the straw on the field. As the cutting edge 206 moves on the soil surface, it not only cuts the straw, but also breaks up the soil lumps, increases the looseness and air permeability of the soil, and promotes the subsequent absorption of water and nutrients. The consistency of the angle α ensures that the operating depth of the cutting part 1 on the field surface remains unchanged, thereby achieving continuous and uniform soil and straw processing. By adjusting the angle α, the operating effect of the cutting tool 102 on the straw and soil can be optimized, and gradual cutting and mixing from shallow to deep layers can be achieved. With the continuous cutting and crushing of the straw and soil, the mixed material gradually rises in the inner cavity 203, which not only ensures the full mixing of the material, but also facilitates the uniform backfilling of the material to the field surface.

[0050] The consistency between the circumferential trajectory of the cutting tool 102 and the bottom edge angle α ensures the continuity and uniformity of the entire operation process, thereby improving the operation efficiency and quality. By accurately controlling the cutting depth and angle, the cutting tool 102 can more effectively crush the soil and cut the straw, thereby improving the soil fertility and the growth environment of the crop. The efficient operation of the cutting tool 102 causes the material in the inner cavity 203 to be continuously crushed and gradually raised. This dynamic change of the material ensures the full mixing of the soil and straw and optimized backfilling. The gradual rise of the material in the inner cavity 203 and the final uniform distribution ensure the uniformity of the backfilling process and the maximization of the soil improvement effect.

[0051] In any of the above embodiments, a plurality of first drop holes 205 are provided in the longitudinal direction on the outer bottom wall of the first shell 2. The first drop holes 205 can gradually drop the mixed material inside the inner cavity 203, and the oversized particles can be discharged through the second material guide port 202, so that the oversized particles can be covered on the previously smaller particles, thereby enhancing the windproof effect and stabilizing the soil surface. Along the extension direction, the longitudinal height of the first drop hole 205 gradually increases, and the first drop hole 205 is located between the first material guide port 201 and the second material guide port 202.

[0052] In this embodiment, the first material drop holes 205 are arranged along the longitudinal direction of the first shell 2, so that the mixed material in the inner cavity 203 can gradually fall out through these holes to achieve uniform distribution on the field surface. The longitudinal height of the first material drop holes 205 gradually increases along the extension direction. This design helps to control the size and rate of the drop materials and optimize the laying effect of the materials and soil coverage; the second material guide port 202 allows oversized particles to be discharged from the inner cavity 203. These particles are usually not suitable for direct mixing into the soil for use, but can be used to cover the previously fallen finer particles to provide additional coverage protection. The covering effect of the larger particles enhances the wind resistance of the field surface, helps to reduce wind erosion, and helps to maintain the moisture and structural stability of the soil.

[0053] The first material drop hole 205 is located between the first material guide port 201 and the second material guide port 202. Its design ensures that the material can enter from the first material guide port 201 and fall out in sequence through the first material drop hole 205, and the oversized particles are discharged from the second material guide port 202. This layout promotes the continuity and efficiency of material processing. The material falling through the first material drop hole 205 is fine particles, and the larger particles discharged from the second material guide port 202 cover these fine particles, forming a double-layer soil cover, which enhances the soil protection and windproof effect. The gradually increasing longitudinal height design of the first material drop hole 205 helps to control the stratification and sequence of the drop. The layered laying of particles from fine to coarse helps to improve the stability and erosion resistance of the soil surface. The large particles discharged from the second material guide port 202 form a protective layer on the fine particles already laid by the first material drop hole 205. This layered covering effectively prevents direct wind erosion of the soil and protects the soil structure and moisture in the lower layer.

[0054] In any of the above embodiments, the lowest point of the first material guide port 201 is lower than the lowest point of the second material guide port 202; a cutting edge 206 is provided on the circumferential edge of the first material guide port 201, and the cutting edge 206 is used to guide the surface soil of the field into the inner cavity 203 along the extension direction.

[0055] In this embodiment, the lowest point of the first material guide port 201 is lower than the second material guide port 202, which makes it easier for the field surface soil to enter the first material guide port 201. In addition, the circumferential edge of the first material guide port 201 is provided with a cutting edge 206, the function of which is to effectively cut the field surface soil along the extension direction of the machine and introduce it into the inner cavity 203 when the agricultural vehicle moves forward, so as to provide materials for mixing and processing; the second material guide port 202 is mainly used to discharge particles that are larger in size or not suitable for backfilling due to its relatively high position. These particles are usually larger soil blocks or straw pieces that are not fully broken after being processed by the cutting tool 102 in the inner cavity 203.

[0056] The lower setting of the first material guide port 201 allows soil and finer materials to be sucked in and processed first, while the height difference of the second material guide port 202 ensures that coarser materials can be effectively diverted and discharged. Such a layout helps to improve the efficiency and effect of material processing in the machine and reduce the risk of blockage and excessive wear; the blade 206 of the first material guide port 201 is designed so that the surface soil of the field is dynamically cut and smoothly introduced into the inner cavity 203 during the forward movement of the machine. This design not only improves the efficiency of soil entering the inner cavity 203, but also preliminarily breaks up the soil blocks through the cutting action of the blade 206, laying the foundation for further processing in the inner cavity 203; the first material guide port 201 mainly processes the fine materials entering, while the second material guide port 202 processes and discharges larger particles. This graded processing method ensures that the machine can effectively manage soil and straw particles of different sizes. Finer materials can enter through the first material guide port 201 and be further crushed and mixed in the inner cavity 203, while larger materials can be discharged through the second material guide port 202 to avoid affecting the internal processing efficiency and quality.

[0057] In any of the above embodiments, the first drop hole 205 is opened on the outer bottom wall of the first shell 2 close to the second shell 3, so that the dropped mixed material is closer to the soil on the side where the straw roots are left, which helps to consolidate the overall structure of multiple straw roots arranged in rows.

[0058] In this embodiment, by setting a first drop hole 205 on the outer bottom wall of the first shell 2 close to the second shell 3, it can be ensured that the dropped mixed material directly affects the row where the straw roots are located, thereby improving the soil stability and moisturizing effect of the straw roots. The dropped mixed material is rich in organic matter and is evenly distributed on the soil next to the straw roots, which helps to improve the soil structure, enhance the soil fixation effect, and reduce soil erosion; the second shell 3 is a structural component connecting the two first shells 2. Its positional relationship affects the design and function realization of the first drop hole 205, and supports the first shell 2 to drop materials at the correct position to maximize the protection of the soil structure in the straw root area.

[0059] The first drop hole 205 is positioned close to the second shell 3 so that the drop process can be more effectively targeted at the area where the straw roots are located. The second shell 3 is used as a structural reference point to ensure the accuracy of the drop. The strategic location of the first drop hole 205 allows the dropped material to directly cover and improve the soil around the straw roots, which not only protects the straw roots, but also optimizes the soil management of the entire field. By dropping the mixed material next to the straw roots, the soil weight and density in the area are increased, which helps to fix the straw roots and reduce the possibility of wind erosion or water erosion. At the same time, the soil's water retention capacity is improved, which is beneficial to the growth of rooted straw and the stability of soil ecology. The drop strategy helps to form a more stable row structure. When multiple straw roots are arranged in rows, the evenly distributed soil and organic material enhance the continuity and overall stability between rows, and the ability to resist natural erosion is improved.

[0060] In any of the above embodiments, the first shell 2 is provided with a second material drop hole 207 along the longitudinal direction, and the second material drop hole 207 corresponds to the first material drop hole 205 along the longitudinal direction. The second material drop hole 207 is used to introduce the return material into the inner cavity 203, and the return material can be sorghum or other agricultural materials.

[0061] In this embodiment, the main function of the second drop hole 207 is to serve as a channel for introducing the returning materials from the outside of the machine into the inner cavity 203. This allows the returning materials to be mixed with the soil and straw introduced by the first feed port 201, processed together and backfilled into the surface of the field. The agricultural materials added through the second drop hole 207, such as fertilizers, can be directly mixed with the soil to enhance the fertility of the soil and the growth potential of crops; the first drop hole 205 is mainly responsible for gradually dropping the mixed materials in the inner cavity 203, while the second drop hole 207 adds new returning materials in the process. This design ensures the continuous renewal of the mixed materials and the uniform distribution of nutrients.

[0062] The second drop hole 207 allows agricultural materials to directly enter the inner cavity 203 and mix with the soil and straw inside. This direct supplement method helps to ensure the uniform distribution and effective utilization of agricultural materials. Due to the addition of materials from the second drop hole 207, the mixed materials in the inner cavity 203 always maintain nutritional and functional renewal during the drop process, enhancing the effect of soil improvement and crop growth; the synergistic effect of the second drop hole 207 and the first drop hole 205 optimizes the flow and processing of materials in the inner cavity 203. The first drop hole 205 is responsible for gradually dropping out the mixed and processed materials, while the second drop hole 207 replenishes new materials for returning to the field, ensuring the continuity and efficiency of material processing. The materials for returning to the field replenished through the second drop hole 207 can be specific agricultural fertilizers or improvers. These materials are mixed with the soil and straw dropped through the first drop hole 205, which helps to improve soil quality and ensure that the soil after the operation has better structure and fertility.

[0063] In any of the above embodiments, the cutting tool 102 includes an elastic rod body 1022, which is used to mix the straw, field surface soil and field return materials located in the inner cavity 203. The elastic rod body 1022 is composed of a spiral spring, and the end extends straight outward to form a rod body for stirring, and the rod body can be welded or assembled with a blade 303 for cutting the main body of the straw.

[0064] In this embodiment, the main function of the elastic rod 1022 is to stir and mix the straw, soil and materials returned to the field in the inner cavity 203 to ensure that these components are fully integrated and promote the uniform distribution of fertilizers and other materials. The elastic rod 1022 composed of a spiral spring can adapt to different pressures and resistances during the operation of the machine, avoiding damage to the machine or reducing the mixing efficiency when facing hard soil or large pieces of straw; the blades 303 assembled at the end of the rod are used to efficiently cut the straw entering the inner cavity 203. These blades 303 can cut the straw into smaller fragments to facilitate subsequent mixing and returning to the field. The welding or assembly method of the blades 303 allows easy replacement according to wear or operation requirements, thereby maintaining the sharpness and efficiency of the cutting tool.

[0065] When the elastic rod body 1022 stirs the straw and soil in the inner cavity 203, the blade 303 performs cutting operations simultaneously. This design makes the stirring and cutting process more efficient and ensures the thoroughness and uniformity of material processing. The spiral spring design of the elastic rod body 1022 provides sufficient elasticity to cope with large obstacles in the straw and soil, while the blade 303 performs necessary cutting. The two complement each other and optimize the stability and reliability of mechanical operations. The elastic rod body 1022 not only provides physical cutting, but also helps to mix the soil and straw evenly during the stirring process. Especially when adding fertilizers and other materials returned to the field, the elasticity of the elastic rod body 1022 allows it to adjust the stirring force when encountering soils of different densities or humidity, avoiding excessive pressure on the machine and improving the adaptability and durability of the operation.

[0066] The elastic rod 1022 can be made of highly elastic steel or hard plastic.

[0067] In any of the above embodiments, the cutting tool 102 also includes a connecting frame 1023 for installing the elastic rod body 1022, and the connecting frame 1023 is connected to the rotating shaft 101; the elastic rod body 1022 on the same connecting frame 1023 corresponds to each other along the extension direction, and a protrusion 208 is formed on the inner wall surface of the first shell 2 between adjacent first blanking holes 205, and the protrusion 208 is adapted to the elastic rod body 1022.

[0068] In this embodiment, the connecting frame 1023 provides a stable mounting base for the elastic rod body 1022, and through the connection with the rotating shaft 101, the stability and uniform force distribution of the elastic rod body 1022 during movement are ensured. Since the elastic rod body 1022 on the connecting frame 1023 corresponds along the extension direction, this ensures that the elastic rod body 1022 can stir and cut the material in the inner cavity 203 in a coordinated manner when the machine is working; the protrusions 208 on the inner wall of the first shell 2 are adapted to the elastic rod body 1022. When the elastic rod body 1022 rotates, these protrusions 208 help to push and guide the material for in-depth stirring, ensuring uniform mixing of the material. The design of the protrusions 208 helps to break up larger clods of soil and straw, so that these materials can be better processed before passing through the first drop hole 205.

[0069] The connecting frame 1023 stably mounts each elastic rod 1022 so that it maintains the correct position and angle during operation, thereby effectively stirring and cutting the materials in the inner cavity 203. This structural design ensures the continuity and efficiency of the operation. The connection between the connecting frame 1023 and the rotating shaft 101 ensures smooth power transmission from the rotating shaft 101 to the elastic rod 1022, and can maintain efficient action execution whether stirring or cutting; the protrusion 208 on the inner wall contacts the rod when the elastic rod 1022 rotates, helping the material to turn over and mix, and also plays a role in assisting cutting. Especially for larger or harder clods of soil and straw, the design of the protrusion 208 not only optimizes the fluidity and stirring efficiency of the material, but also assists the elastic rod 1022 through physical action to more effectively break difficult-to-handle materials.

[0070] Furthermore, a plurality of ring bodies 103 are installed on the rotating shaft 101 in the extension direction of the axis, a connecting frame 1023 is installed circumferentially on the outer wall of the ring body 103, and the ring body 103 can cut the inner cavity 203 along the longitudinal direction so as to deliver the returned material to the field at different stages of the mixed material in the inner cavity 203 through the second drop hole 207.

[0071] As can be seen from the above, the outer wall of the ring body 103 provides a stable platform for installing the connecting frame 1023. This installation method ensures that the connecting frame 1023 and the cutting or stirring components attached to it can be evenly distributed around the rotating shaft 101. The ring body 103 is designed to cut the inner cavity 203 along the longitudinal direction. This feature allows the ring body 103 to promote the stratification and flow of materials in the inner cavity 203 when rotating, thereby enhancing the mixing efficiency of the materials; the connecting frame 1023 is used to fix and support stirring and cutting components such as the elastic rod body 1022. These components effectively process the materials in the inner cavity 203. Since the connecting frame 1023 is directly connected to the ring body 103, this configuration allows the power from the rotating shaft 101 to be efficiently transmitted to the working components on each connecting frame 1023.

[0072] The ring body 103 provides a fixed point for the connecting frame 1023, which ensures that the mixing and cutting components can be evenly distributed around the rotating shaft 101, improving the processing uniformity of the inner cavity 203. The longitudinal movement of the ring body 103 also promotes the longitudinal flow of the material during the mixing process. With the rotation and longitudinal cutting of the ring body 103, the material in the inner cavity 203 is effectively pushed and layered, and the components on the connecting frame 1023 further process these materials to make the mixing more thorough; the function of the ring body 103 in longitudinally cutting the inner cavity 203 allows the delivery of the returned material through the second drop hole 207 to be adjusted according to the mixing stage of the material, realizing the timing control of the material delivery and optimizing the return effect. Through the longitudinal movement of the ring body 103, it can be ensured that the returned material is evenly delivered in different areas of the inner cavity 203, and the best soil improvement effect is achieved with the stirring and mixing of the material.

[0073] In any of the above embodiments, a blade 303 is fixed to the top surface of the through notch 301, and multiple blades 303 are arranged along the extension direction so as to perform secondary cutting processing on the part of the straw whose roots are left higher than the field after being cut by the harvesting tool, so as to unify the length of the field surface and set the expected size.

[0074] In this embodiment, the through-notch 301 provides necessary space for the remaining roots of the straw that protrude above the surface of the field after harvesting, so that the straw can pass through the machine without obstacles, reducing physical obstacles and potential mechanical damage. The blade 303 on the top of the through-notch 301 is used to perform precise secondary cutting on the remaining roots to adjust and unify the length of the straw and improve the overall management efficiency of the field; the blade 303 arranged on the through-notch 301 cuts the remaining roots of the straw that protrude above the surface so that the length of all remaining roots meets the preset size requirements, which is very critical for subsequent farmland management operations such as fertilization and irrigation. The uniform straw length not only improves the aesthetics of the field, but also optimizes the fluency and efficiency of mechanized operations.

[0075] By installing a blade 303 on the top of the through-notch 301, the machine can immediately perform a second cut when the straw roots pass through. This design makes full use of the dynamic process of the straw roots passing through the through-notch 301, ensuring the timeliness and accuracy of the cutting. This configuration minimizes the physical drag and friction on the straw, reduces the risk of mechanical failure, and ensures the continuity and safety of the operation. The effective cutting of the blade 303 standardizes the length of the straw roots, which helps to standardize the subsequent farmland operations, such as the uniform spreading of fertilizers, the effective control of pests and diseases, etc. The consistent length of the straw roots helps to improve the efficiency of mechanized operations such as spraying and irrigation and the uniformity of coverage.

[0076] Furthermore, the second shell 3 includes two fixed plates 302, and the two fixed plates 302 are connected by a side wall necklace with one end tilted up, so that the overall structure presents an inverted V shape, so that the part of the straw roots that is higher than the soil can pass through the through-notch 301 formed at the bottom.

[0077] As can be seen from the above, the fixed plate body 302 constitutes the main structural part of the second shell body 3. Through its solid material and design, it provides the necessary structural support and stability for the entire machine. The fixed plate body 302 is connected by the raised side walls to form an inverted V-shaped structure. This design facilitates the operation of the machine on the field, especially when dealing with uneven or obstructed terrain; the through-notch 301 formed at the bottom allows the straw roots above the soil surface to pass smoothly. This design reduces the physical contact between the machine and the straw roots and reduces the risk of damaging the roots. The presence of the through-notch 301 ensures that the machine will not crush or destroy the rooted straw when processing the field, thereby maintaining the integrity of the soil structure and the favorable state of crop residues.

[0078] The inverted V structure formed by the fixed plate 302 directly affects the shape and size of the through-notch 301, ensuring that the through-notch 301 can provide sufficient space for the straw roots to pass through without affecting the stability of the machine. The inverted V-shaped structure enables the machine to maintain efficient operation when facing straw roots of different heights, while protecting the roots from damage by mechanical operation; the design of the through-notch 301 not only improves the passability of the straw roots, but also reduces the potential damage of the machine to the rooted straw during operation, which helps to maintain the natural state of the soil and roots. By effectively managing the treatment of straw roots, the design of the second shell 3 optimizes the entire operation process and improves the operation efficiency and the quality of farmland management.

[0079] In any of the above embodiments, a lifting ring 4 is installed on the upper surface of the second shell 3, and the second shell 3 is hoisted on the agricultural vehicle through the lifting ring 4. The longitudinal height of the second shell 3 can be set by a hydraulic cylinder through the lifting ring 4, so as to set the digging depth of the soil surface and adjust the distance between the inner cavity 203 and the cutting tool 102.

[0080] In this embodiment, the lifting ring 4 provides a solid connection point for safely lifting the second shell 3 on the agricultural vehicle, ensuring the stability and safety of the machine during operation. By cooperating with the hydraulic cylinder, the lifting ring 4 allows the longitudinal height of the second shell 3 to be flexibly adjusted according to soil conditions and operation requirements, thereby enhancing the adaptability and functional diversity of the machine. The hydraulic cylinder is connected to the lifting ring 4, allowing the operator to adjust the longitudinal height of the second shell 3 according to different field conditions, thereby controlling the excavation depth of the soil surface. The use of the hydraulic cylinder also allows the distance between the second shell 3 and the cutting tool 102 in the inner cavity 203 to be adjusted, thereby optimizing the cutting effect and the overall working performance of the machine.

[0081] The use of the lifting ring 4 and the hydraulic cylinder not only improves the adjustment flexibility of the second housing 3, but also ensures that the machine can operate effectively under different soil conditions. This system enables the machine to quickly adapt and adjust to the hardness, humidity and other physical properties of the soil. By adjusting the height of the second housing 3, it can ensure that the inner cavity 203 and the cutting tool 102 can maintain the best working state under different conditions, thereby maintaining the high efficiency and operation quality of the machine; adjusting the height of the second housing 3 directly affects the digging depth of the soil. The precise adjustment of the height also allows the machine to adjust the contact depth of the cutting tool 102 with the soil according to the operation requirements, ensuring that the soil is evenly and effectively processed, improving the quality of the soil and the growth environment of the crop.

[0082] Furthermore, guide plates 104 are respectively installed at two ends of the rotating shaft 101 . The guide plates 104 are fixedly assembled on the agricultural vehicle, and the side walls of the guide plates 104 can be used to install a motor that drives the rotating shaft 101 to rotate.

[0083] As can be seen from the above, the guide plate 104 provides a stable fixing point for the rotating shaft 101, ensures the correct installation and stable operation of the rotating shaft 101 on the agricultural vehicle, maintains the correct alignment of the rotating shaft 101 and reduces mechanical wear during operation. The side wall of the guide plate 104 is designed to install a motor, which provides the necessary power for the rotating shaft 101, so that it can drive the cutting tool 102, elastic rod body 1022 and other components in the machine to perform corresponding operating functions; the motor, as a power source, is connected to the rotating shaft 101 through the guide plate 104, directly drives the rotating shaft 101 and various working components thereon (such as the cutting tool 102 and the elastic rod body 1022), and provides continuous and stable power output. The motor can also adjust the speed according to the operating requirements to adapt to different soil conditions and operating intensities, thereby improving the applicability and operating efficiency of the machine.

[0084] By installing the motor on the guide plate 104, power can be directly transmitted to the rotating shaft 101. This direct power connection method reduces energy loss and improves transmission efficiency. The guide plate 104, as a key component connecting the motor and the rotating shaft 101, ensures the integration and compactness of the entire power system, making the design of the machine more streamlined and efficient; the guide plate 104 fixes the two ends of the rotating shaft 101 to ensure the stability and alignment of the rotating shaft 101 when rotating at high speed or bearing a large load, and prevents operational errors or mechanical failures caused by the offset of the rotating shaft 101. When the motor and other components need to be maintained or replaced, the guide plate 104 provides a convenient access point, making maintenance and replacement work more convenient and quick.

[0085] Furthermore, an arc-shaped baffle plate 5 is installed at the edge of the first shell 2 away from the second shell 3 to prevent the mixed material in the inner cavity 203 from being thrown around.

[0086] As can be seen from the above, in order to further improve the operating efficiency and ensure the operating quality, an arc-shaped baffle 5 is installed on the edge of the first shell 2 away from the second shell 3. The main function of this arc-shaped baffle 5 is to prevent the mixed materials in the inner cavity 203, such as cut straw, soil and materials returned to the field, from being thrown around during the operation of the machine, ensuring that these materials can be effectively backfilled or left in the field, thereby improving the efficiency and quality of returning to the field. The arc-shaped baffle 5 effectively blocks the tendency of the mixed materials inside the machine to be thrown outward when rotating at high speed through its shape and position, ensuring that the falling of materials is more concentrated and orderly. The arc-shaped baffle 5 not only prevents material loss, but also helps the machine to more accurately distribute soil and other materials to the target area, especially under conditions of strong winds or fast movement of the machine, to keep the working area clean and the materials effectively utilized.

[0087] As an extension of the first shell 2, the arc baffle 5 improves the structural design of the machine, making the first shell 2 more efficient in handling and transferring materials in the inner cavity 203. The design and position of the baffle directly affect the quality of material handling and the cleanliness of the environment. By reducing the aimless spillage of materials, the arc baffle 5 improves the safety of operation and prevents fast-moving materials from causing potential harm to operators or the surrounding environment; although the arc baffle 5 is installed on the first shell 2, its function and effect also have an indirect impact on the second shell 3, especially in the operating area responsible for the second shell 3. The baffle ensures the retention and control of materials during the material transfer process from the first shell 2 to the second shell 3, supporting the continuity and efficiency of the entire operation process.

[0088] As attached Figure 5As shown, the multiple dots arranged longitudinally are the straw roots remaining in the soil after straw harvesting, and a rectangular soil surface working area is formed between adjacent rows of straw roots. This is the working soil part of the present application, and the direction of the arrow in the figure is the working direction of the agricultural vehicle.

[0089] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0090] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A machine for returning straw organic fertilizer to the field by deep tillage and stubble retention in dry slope land, characterized in that: include: The cutting part is mounted on the agricultural vehicle; the cutting part includes a rotating shaft and a plurality of cutting knives, and the cutting knives are mounted on the rotating shaft; the rotating shaft has an axis, and the agricultural vehicle moves on the field along the extension direction of the axis; when the agricultural vehicle moves, the rotating shaft drives all the cutting knives to move circumferentially with the axis as the axis center; The first shell is circumferentially extended outside the rotating shaft with the axis as the center; along the extending direction, the first shell is formed with a first material guide port and a second material guide port for allowing the surface soil of the field to pass through, and the first material guide port and the second material guide port are respectively connected to the inner cavity of the first shell; the first shell moves between adjacent rows of straw roots along the extending direction to obtain the surface soil of the field between adjacent rows of straw roots, and the rotating shaft and the cutting tool are located in the inner cavity; A second shell, wherein the second shell is connected to the first shell along an end portion perpendicular to the extension direction, and the upper surface of the second shell is fixedly assembled with the agricultural vehicle; a through notch opening downward is formed on the second shell, and the through notch is used for allowing the portion of the straw rooted above the field to pass through when the first shell moves; Wherein, when the agricultural vehicle is moving and operating on the field, the axis is parallel to the field surface; the outer bottom wall of the first shell has a first bottom edge along the extension direction, and there is an angle between the first bottom edge and the field surface; the cutting tool's blade head forms a circumferential trajectory during circumferential motion, and the circumferential trajectory is parallel to the field surface along the second bottom edge of the extension direction.

2. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 1, characterized in that: The outer bottom wall of the first shell is longitudinally provided with a plurality of first material drop holes; along the extending direction, the longitudinal heights of the first material drop holes gradually increase, and the first material drop holes are located between the first material guide port and the second material guide port.

3. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 2, characterized in that: The lowest point of the first material guide port is lower than the lowest point of the second material guide port; a cutting edge is provided on the circumferential edge of the first material guide port, and the cutting edge is used to guide the surface soil of the field into the inner cavity along the extension direction.

4. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 2, characterized in that: The first blanking hole is arranged on the outer bottom wall of the first shell body close to the second shell body.

5. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 2, characterized in that: The first shell is provided with a second material drop hole along the longitudinal direction, the second material drop hole corresponds to the first material drop hole along the longitudinal direction, and the second material drop hole is used to introduce the field return material into the inner cavity.

6. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 5, characterized in that: The cutting tool comprises an elastic rod body, and the elastic rod body is used for mixing the straw located in the inner cavity, the field surface soil and the field return material.

7. The machine for returning straw organic fertilizer to the field by deep tillage and stubble leaving in dry slope land according to claim 6, characterized in that: The cutting tool also includes a connecting frame for mounting the elastic rod body, the connecting frame is connected to the rotating shaft; the elastic rod bodies on the same connecting frame correspond to each other along the extension direction, and a protrusion is formed on the inner wall surface of the first shell between adjacent first blanking holes, and the protrusion is adapted to the elastic rod body.

8. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 1, characterized in that: A blade is fixed on the top surface of the through notch, and a plurality of blades are arranged along the extending direction.

9. The dry slope land strip stubble deep tillage straw organic fertilizer returning machine according to claim 1, characterized in that: A lifting ring is installed on the upper surface of the second shell, and the second shell is lifted on the agricultural vehicle through the lifting ring.

Images