Agricultural rotary cultivator with fertilization function

Abstract

The utility model relates to the technical field of agricultural rotary cultivators, and discloses an agricultural rotary cultivator with a fertilization function, which comprises a main frame body, a connecting piece is arranged on the main frame body, the connecting piece is used for connecting and fixing the main frame body and a tractor, a rotary tillage piece and a cleaning piece are arranged at the lower end of the main frame body, and the rotary tillage piece is connected with the cleaning piece. The rotary tillage part is used for soil loosening and rotary tillage of land, the cleaning part is used for cleaning impurities of the rotary tillage part, a quantitative conveying cavity in the fertilization box is combined with a center roller, a partition plate, an edge plate, an adjusting plate and other assemblies, an efficient quantitative conveying area is formed, the area can accurately control the amount of fertilizer conveyed every time, and the fertilizer conveying efficiency is improved. And the effective volume of the quantitative conveying area is adjusted through the position change of the adjusting plate, so that the fertilization amount is flexibly adjusted and controlled, and the fertilizer applicator has the characteristics of high practicability and capability of adjusting the fertilization amount.

Description

Technical Field

[0001] This utility model relates to the field of agricultural rotary tillers, specifically an agricultural rotary tiller with fertilization function. Background Technology

[0002] Rotary tillers, as a common type of agricultural machinery, are mainly used to loosen and till the land to create good soil conditions for crop cultivation. Since the agricultural revolution at the end of the 19th and beginning of the 20th centuries, the development of rotary tillers has gone through several stages, gradually evolving from simple manual tools to modern highly automated machinery. However, for a long time, traditional rotary tillers mainly focused on the function of tilling the soil.

[0003] Traditional rotary tillers can only perform soil turning, while fertilizer application often requires specialized equipment or manual labor. This step-by-step operation not only increases labor intensity but also easily leads to uneven fertilization, affecting crop growth consistency and yield. A utility model with publication number CN218337079U discloses a rotary tiller for quantitative fertilization, including a moving mechanism, a fertilization mechanism, and a rotary tillage mechanism. The fertilization mechanism is mounted on the upper side of the moving mechanism, and the rotary tillage mechanism is located on one side of the fertilization mechanism. The rotary tillage mechanism includes a protective cover, a lead screw, and a turntable. The device consists of a limit rod, a drive motor, and a rotary rake. A lead screw is connected to the upper side of the protective cover, and a turntable is welded to one end of the lead screw. However, during use, this device lacks a built-in fertilization system, making it difficult for farmers to accurately control the amount of fertilizer applied according to actual conditions. This may lead to excessive fertilization in some areas, resulting in resource waste, while insufficient fertilization in other areas may affect crop health. In addition, excessive fertilization can also cause environmental pollution problems, such as eutrophication of water bodies. Therefore, it is necessary to design a practical agricultural rotary tiller with an adjustable fertilization function. Utility Model Content

[0004] The purpose of this invention is to provide an agricultural rotary tiller with fertilization function to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an agricultural rotary tiller with fertilization function, including a main frame, a connecting member on the main frame for connecting and fixing the main frame to a tractor, a rotary tiller and a cleaning member at the lower end of the main frame, the rotary tiller for loosening and tilling the soil, and the cleaning member for cleaning impurities from the rotary tiller, a fertilizer box on the main frame for storing fertilizer, a quantitative conveying chamber inside the fertilizer box with an inlet and an outlet at the upper and lower ends of the quantitative conveying chamber respectively, a quantitative conveying member inside the quantitative conveying chamber for quantitatively conveying fertilizer, a quantitative adjustment member on the quantitative conveying member for adjusting the quantitative amount of fertilizer, and outlets evenly distributed on the main frame with the outlets correspondingly located at the lower end of the outlets.

[0006] According to the above technical solution, the quantitative conveying component includes a central roller, a partition plate, an edge plate, and an adjusting plate. The central roller is movably installed inside the quantitative conveying cavity. The partition plates are arranged in a circumferential array on the outer wall of the central roller. The edge plates are fixedly installed between adjacent partition plates. The edge plates are symmetrically arranged on both sides of the central roller. The adjusting plate is movably installed between the edge plates. A quantitative conveying area is formed between the partition plates, the edge plates, and the adjusting plate. The central roller is hollow and the quantitative adjusting component is provided inside the central roller. The quantitative adjusting component controls the raising and lowering of the adjusting plate for adjusting the fertilizer application rate.

[0007] According to the above technical solution, the adjusting plate includes a movable plate one, a movable plate two, and a spring. The movable plate one is movably installed in the middle position of the quantitative conveying area. The slider is symmetrically arranged in the movable plate two and symmetrically movably installed in the movable plate one. The two ends of the movable plate two extend out of the movable plate one and slide in contact with the partition plate. The spring is fixedly installed between the movable plates one.

[0008] According to the above technical solution, the quantitative adjustment component includes a fixed plate, a servo motor, a threaded rod, a movable sleeve, a fixed rod, a limiting block, a connecting rope, and a corner wheel. The fixed plate is fixedly installed inside the central roller. The servo motor is fixedly installed on the side wall of the fixed plate, and the threaded rod is fixedly installed at the output end of the servo motor. The movable sleeve is disposed inside the central roller. The fixed rod is symmetrically fixedly installed inside the central roller. The limiting block is fixedly installed at the end of the fixed rod. The limiting block is movably installed on the outer side wall of the movable sleeve for circumferential limiting of the movable sleeve. The threaded rod is threadedly connected inside the movable sleeve. The connecting rope is connected between the movable plate and the movable sleeve. The corner wheel is disposed inside the central roller, and the connecting rope is attached to the corresponding corner wheel.

[0009] According to the above technical solution, the rotary tillage component includes a rotary tillage frame, a rotary tillage shaft, a fixing ring, and rotary tillage blades. The rotary tillage frames are symmetrically arranged at the lower end of the main frame, and the rotary tillage shaft is movably installed between the rotary tillage frames. The fixing rings are arranged in a linear array on the rotary tillage shaft, and the rotary tillage blades are arranged in a circumferential array on the outer wall of the fixing rings.

[0010] According to the above technical solution, the cleaning component includes a cleaning frame, a cleaning shaft, and cleaning heads. The cleaning frames are symmetrically arranged at the lower end of the main frame, and the cleaning shaft is movably and fixedly installed between the cleaning frames. The cleaning heads are arranged in a linear array on the cleaning shaft, and the cleaning heads are arranged in pairs on both sides of the fixing ring for cleaning impurities from the rotary tiller blades.

[0011] According to the above technical solution, the connectors are symmetrically arranged on the upper end of the main frame. The connectors include an L-shaped connecting frame and a bolt plate. The L-shaped connecting frame is fixedly installed on the upper end of the main frame, and the bolt plate is fixedly installed on the end of the L-shaped connecting frame.

[0012] According to the above technical solution, the lower end of the main frame is evenly distributed with discharge pipes, and the discharge pipes and the discharge ports are set in a one-to-one correspondence to extend the discharge path of fertilizer and ensure precise discharge.

[0013] According to the above technical solution, arched blocks are evenly distributed inside the discharge opening, and the arched blocks are arranged between adjacent discharge openings for convenient separation of fertilizer.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] (1) Flexible adjustment of fertilizer application amount: The quantitative conveying chamber in the fertilizer box combines components such as the central roller, partition plate, edge plate and adjustment plate to form an efficient quantitative conveying area. This area can accurately control the amount of fertilizer conveyed each time, and adjust the effective volume of the quantitative conveying area by changing the position of the adjustment plate, thereby realizing flexible control of fertilizer application amount.

[0016] (2) Uniform distribution of fertilizer application: The presence of the discharge pipe significantly increases the fertilizer transport distance, allowing the fertilizer to stay in the air for a longer time after leaving the machine, thus better dispersing it and avoiding local over-fertilization. The evenly distributed arched blocks in the discharge opening further enhance the fertilizer separation effect. When the fertilizer flows through these arched blocks, it will form a diversion phenomenon, which will cause the fertilizer particles to be dispersed to a certain extent, avoiding the waste or uneven fertilization caused by large pieces of fertilizer falling directly into the soil. This ensures that the fertilizer can be more evenly distributed on the field, improving fertilization efficiency and the crop's ability to absorb nutrients.

[0017] (3) The structure is easy to disassemble and assemble: the main frame, connecting parts, rotary tillage parts, cleaning parts and fertilizer box can all be fixed with bolts, which facilitates the assembly and disassembly of the device and can be easily replaced or maintained when necessary. This design not only improves the stability of the system, but also reduces maintenance costs and time. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a first perspective view of the present invention;

[0020] Figure 2 This is a second perspective view of the present invention;

[0021] Figure 3 This is a third perspective view of the present invention;

[0022] Figure 4 This is a first partial perspective view of the present invention;

[0023] Figure 5 This is a schematic diagram of the front sectional view of this utility model;

[0024] Figure 6 This is a second partial perspective view of the present invention;

[0025] Figure 7 This is a three-dimensional schematic diagram of the quantitative conveying component of this utility model;

[0026] Figure 8 This is a schematic diagram of the front sectional view of the center roller of this utility model;

[0027] In the diagram: 1-Main frame, 2-Connector, 21-L-shaped connecting frame, 22-Bolt plate, 3-Rotary tiller, 31-Rotary tiller frame, 32-Rotary tiller shaft, 33-Fixing ring, 34-Rotary tiller blade, 4-Cleaning component, 41-Cleaning frame, 42-Cleaning shaft, 43-Cleaning head, 5-Fertilizer box, 511-Quantitative conveying chamber, 512-Inlet opening, 513-Outlet opening, 6-Quantitative conveying component, 61-Center roller, 62-Divider plate, 63-Edge plate, 64-Adjusting plate, 641-Modible plate one, 642-Modible plate two, 643-Spring, 7-Quantitative adjusting component, 71-Fixing plate, 72-Servo motor, 73-Threaded rod, 74-Modible sleeve, 75-Fixing rod, 76-Limiting block, 77-Connecting rope, 78-Corner wheel, 8-Outlet, 9-Discharge pipe, 10-Arch-shaped block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-8 This utility model provides a technical solution: an agricultural rotary tiller with fertilization function, including a main frame 1, a connecting member 2 on the main frame 1 for connecting and fixing the main frame 1 and a tractor, a rotary tiller 3 and a cleaning member 4 at the lower end of the main frame 1, the rotary tiller 3 for loosening and tilling the soil, and the cleaning member 4 for cleaning impurities from the rotary tiller 3, a fertilizer box 5 on the main frame for storing fertilizer, a quantitative conveying chamber 511 inside the fertilizer box 5, and an inlet 512 and an outlet 513 at the upper and lower ends of the quantitative conveying chamber 511 respectively, a quantitative conveying member 6 inside the quantitative conveying chamber 511 for quantitatively conveying fertilizer, a quantitative adjustment member 7 on the quantitative conveying member 6 for adjusting the quantitative amount of fertilizer, and outlets 8 evenly distributed on the main frame 1, with the outlets 8 correspondingly located at the lower end of the outlet 513;

[0030] The main frame 1 forms the basic framework of the entire machine. It not only supports all working parts but also securely fixes itself to the tractor via the connector 2. This design ensures stable operation under various terrain conditions. The rotary tiller 3, located below the main frame, is the core component for soil tillage. Its rotating blades break up and mix the soil, improving soil structure and increasing aeration and water retention. The cleaning component 4, installed adjacent to the rotary tiller 3, removes debris such as plant residues from the blades during tillage, preventing these substances from affecting subsequent tillage quality. The main frame 1, connector 2, rotary tiller 3, and cleaning component 4 are all common technologies in existing technology and will not be elaborated upon further. The fertilizer box 5, located on the main frame 1, serves as a fertilizer storage container. To adapt to different needs, the system includes a quantitative conveying chamber 511. This chamber has an inlet 512 and an outlet 513 at its upper and lower ends, respectively. This design ensures that fertilizer can enter from the top and be evenly distributed from the bottom. The outlets 8, evenly distributed on the main frame 1, are positioned below the outlet 513, ensuring that the fertilizer falls accurately to the desired location. More importantly, the quantitative conveying chamber 511 is equipped with a quantitative conveying component 6, a device specifically designed to precisely control the fertilizer output. By adjusting the quantitative adjustment component 7 on the quantitative conveying component 6, operators can flexibly adjust the amount of fertilizer applied each time according to actual needs, meeting the requirements of different crop growth stages. This precise fertilization method helps reduce fertilizer waste, improves nutrient utilization, and promotes healthy crop growth.

[0031] Specifically, the quantitative conveying component 6 includes a central roller 61, a partition plate 62, an edge plate 63, and an adjusting plate 64. The central roller 61 is movably installed in the quantitative conveying cavity 511. The partition plates 62 are arranged in a circumferential array on the outer wall of the central roller 61. The edge plates 63 are fixedly installed between adjacent partition plates 62. The edge plates 63 are symmetrically arranged on both sides of the central roller 61. The adjusting plate 64 is movably installed between the edge plates 63. A quantitative conveying area is formed between the partition plates 62, the edge plates 63, and the adjusting plate 64. The central roller 61 is hollow and the quantitative adjusting component 7 is provided inside the central roller 61. The quantitative adjusting component 7 controls the raising and lowering of the adjusting plate 64 for adjusting the fertilizer application rate.

[0032] The center roller 61, as the core of the quantitative conveying component, is movably installed in the quantitative conveying cavity 511 inside the fertilizer box 5 and is hollow. This design not only reduces the overall weight but also provides installation space for the built-in quantitative adjustment component 7. The center roller 61 can be driven by a separate servo motor, which can be installed on the outer wall of the fertilizer box 5, or by a belt drive mechanism connected to the rotary tiller 3. When the tractor drives the entire rotary tiller forward, the center roller 61 rotates accordingly. Both servo motors and belt drives are common technologies in this field, and the appropriate choice can be made according to the needs. Further details are omitted here. The partition plates 62 are arranged in a circular array around the outer wall of the center roller 61, dividing the center roller 61 into sections. The surface of the core roller 61 is divided into multiple independent areas, and an edge plate 63 is fixed between each partition plate. The two work together to form a series of closed spaces, namely the quantitative conveying area. These areas are used to hold the fertilizer granules to be conveyed. When the core roller rotates, the granules pass through the feed opening 512 and the discharge opening 513 in sequence, thereby completing the fertilizer transfer process. The adjusting plate 64 is movably installed between adjacent edge plates 63. Its position can be adjusted by the quantitative adjusting component 7. When it is necessary to change the amount of fertilizer applied, the operator only needs to adjust the quantitative adjusting component 7 to control the raising and lowering of the adjusting plate 64, thereby changing the effective volume of the quantitative conveying area. A smaller volume means less fertilizer is conveyed each time, and vice versa. This flexible design allows users to accurately set the required amount of fertilizer according to the actual situation.

[0033] Specifically, the adjusting plate 64 includes a first movable plate 641, a second movable plate 642, and a spring 643. The first movable plate 641 is movably installed in the middle position of the quantitative conveying area. The slider 64 is symmetrically arranged in the second movable plate 642 and symmetrically movably installed in the first movable plate 641. The two ends of the second movable plate 642 extend out of the first movable plate 641 and slide in contact with the partition plate 62. The spring 643 is fixedly installed between the first movable plates 641.

[0034] When the amount of fertilizer needs to be adjusted, the operator can change the force acting on the adjustment plate 64 through the metering adjustment component 7. For example, when the amount of fertilizer is increased, the metering adjustment component 7 will cause the movable plate 641 to move downward, compressing the spring 643 and increasing the height of the metering conveying area. Conversely, when the amount of fertilizer is reduced, the movable plate 641 will be raised upward, reducing the height of the metering conveying area. At the same time, the movable plate 642 will slide in the track between the partition plates 62 to adapt to the new spatial layout and ensure that the fertilizer can be evenly distributed in the entire metering conveying area. It should be noted that the upper end of the partition plate 62 is provided with a round end, which can limit the maximum displacement of the top of the movable plate 642 to prevent the movable plate 642 from displacing excessively.

[0035] Specifically, the quantitative adjustment component 7 includes a fixed plate 71, a servo motor 72, a threaded rod 73, a movable sleeve 74, a fixed rod 75, a limiting block 76, a connecting rope 77, and a corner wheel 78. The fixed plate 71 is fixedly installed inside the central roller 61. The servo motor 72 is fixedly installed on the side wall of the fixed plate 71, and the threaded rod 73 is fixedly installed at the output end of the servo motor 72. The movable sleeve 74 is disposed inside the central roller 61. The fixed rods 75 are symmetrically fixedly installed inside the central roller 61. The limiting block 76 is fixedly installed at the end of the fixed rod 75. The limiting block 76 is movably installed on the outer side wall of the movable sleeve 74 for circumferential limiting of the movable sleeve 74. The threaded rod 73 is threadedly connected inside the movable sleeve 74. The connecting rope 77 is connected between the movable plate 641 and the movable sleeve 74. The corner wheel 78 is disposed inside the central roller 61, and the connecting rope 77 overlaps the corresponding corner wheel 78.

[0036] When the fertilizer application rate needs to be adjusted, the servo motor 72 starts according to the preset program or the operator's input command, driving the threaded rod 73 to rotate. As the threaded rod 73 rotates, the movable sleeve 74 moves axially under the action of the thread. This displacement is transmitted to the movable plate 641 through the connecting rope 77, causing the latter to rise or fall accordingly. During this process, the movable sleeve 74 always maintains linear motion, mainly through the guidance and support provided by the fixed rod 75 and the limit block 76. At the same time, the corner wheel 78 effectively changes the direction of the connecting rope 77, so that it can be smoothly transmitted from the movable sleeve 74 to the movable plate 641, ensuring the compactness and reliability of the system.

[0037] Specifically, the rotary tiller 3 includes a rotary tiller frame 31, a rotary tiller shaft 32, a fixing ring 33, and rotary tiller blades 34. The rotary tiller frames 31 are symmetrically arranged at the lower end of the main frame 1, and the rotary tiller shaft 32 is movably installed between the rotary tiller frames 31. The fixing rings 33 are arranged in a linear array on the rotary tiller shaft 32, and the rotary tiller blades 34 are arranged in a circumferential array on the outer wall of the fixing rings 33.

[0038] Specifically, the cleaning component 4 includes a cleaning frame 41, a cleaning shaft 42, and a cleaning head 43. The cleaning frame 41 is symmetrically arranged at the lower end of the main frame 1, and the cleaning shaft 42 is movably and fixedly installed between the cleaning frames 41. The cleaning head 43 is arranged in a linear array on the cleaning shaft 42. The cleaning head 43 is arranged in pairs on both sides of the fixing ring 33 for cleaning impurities from the rotary tiller 34.

[0039] Specifically, the connector 2 is symmetrically arranged on the upper end of the main frame 1. The connector 2 includes an L-shaped connector 21 and a bolt plate 22. The L-shaped connector 21 is fixedly installed on the upper end of the main frame 1 and the bolt plate 22 is fixedly installed on the end of the L-shaped connector 21.

[0040] Specifically, the lower end of the main frame 1 is evenly distributed with discharge pipes 9, and the discharge pipes 9 and the discharge port 8 are set in a one-to-one correspondence to extend the discharge path of fertilizer and accurately discharge it;

[0041] The discharge pipes 9 are evenly distributed at the lower end of the main frame 1. Each discharge pipe 9 is directly connected to a discharge port 8. This one-to-one layout ensures that the fertilizer discharged from the discharge port 8 can accurately reach the predetermined position through the corresponding discharge pipe 9. The presence of the discharge pipe 9 significantly increases the fertilizer conveying distance, allowing the fertilizer to stay in the air for a longer time after leaving the machine, thus better dispersing it and avoiding local over-fertilization.

[0042] Specifically, arched blocks 10 are evenly distributed within the discharge opening 513, and the arched blocks 10 are arranged between adjacent discharge openings 8 for convenient separation of fertilizer.

[0043] When fertilizer flows through the arched block 10, it will create a diversion phenomenon. This not only helps to break up fertilizer agglomerates, but also allows the fertilizer to enter the corresponding discharge pipe 9 better, ultimately achieving a more uniform fertilization effect.

[0044] Working Principle: The main frame 1 forms the basic framework of the entire machine. It not only supports all working parts but also securely fixes itself to the tractor via the connector 2. This design ensures stable operation under various terrain conditions. The rotary tiller 3, located below the main frame, is the core component for soil tillage. Its rotating blades break up and mix the soil, improving soil structure and increasing aeration and water retention. The cleaning component 4 is installed adjacent to the rotary tiller 3 to promptly remove debris such as plant residues adhering to the blades during tillage, preventing these substances from affecting subsequent tillage quality. The main frame 1, connector 2, rotary tiller 3, and cleaning component 4 are all common technologies in existing systems and will not be elaborated upon further. The fertilizer box 5 serves as a fertilizer storage container. The unit is equipped with a quantitative conveying chamber 511, with an inlet 512 and an outlet 513 at its upper and lower ends, respectively. This design ensures that fertilizer can enter from the top and be evenly distributed from the bottom. The outlets 8, which are evenly distributed on the main frame 1, are located below the outlets 513, ensuring that the fertilizer can fall accurately to the required position. More importantly, the quantitative conveying chamber 511 is equipped with a quantitative conveying component 6, which is a device specifically designed to precisely control the amount of fertilizer output. By adjusting the quantitative adjustment component 7 on the quantitative conveying component 6, the operator can flexibly adjust the amount of fertilizer applied each time according to actual needs to meet the needs of different crop growth stages. This precise fertilization method helps reduce fertilizer waste, improves nutrient utilization, and promotes healthy crop growth.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An agricultural rotary cultivator with fertilization function, comprising a main frame body (1), characterized in that: The main frame (1) is provided with a connecting piece (2), which is used for connecting and fixing the main frame (1) and the tractor, and the lower end of the main frame (1) is provided with a rotary tiller (3) and a cleaning piece (4), the rotary tiller (3) is used for soil loosening and rotary tillage, and the cleaning piece (4) is used for impurity cleaning of the rotary tiller (3), the main frame is provided with a fertilizer box (5), the fertilizer box (5) is used for storing fertilizer, the fertilizer box (5) is provided with a quantitative conveying cavity (511), and the upper and lower ends of the quantitative conveying cavity (511) are respectively provided with an inlet narrow mouth (512) and an outlet narrow mouth (513), the quantitative conveying cavity (511) is provided with a quantitative conveying piece (6), the quantitative conveying piece (6) is used for quantitative conveying of fertilizer, the quantitative conveying piece (6) is provided with a quantitative adjusting piece (7), the quantitative adjusting piece (7) is used for adjusting the quantitative degree of fertilization, and the main frame (1) is uniformly distributed with an outlet (8), and the outlet (8) is correspondingly arranged below the outlet narrow mouth (513).

2. The agricultural rotary cultivator with fertilizing function according to claim 1, characterized in that: The quantitative conveying piece (6) comprises a center roller (61), a partition plate (62), an edge plate (63) and an adjusting plate (64), the center roller (61) is movably installed in the quantitative conveying cavity (511), the partition plates (62) are arranged in a circumferential array on the outer wall of the center roller (61), the edge plates (63) are fixedly installed between adjacent partition plates (62), the edge plates (63) are symmetrically arranged on both sides of the center roller (61), the adjusting plate (64) is movably installed between the edge plates (63), the quantitative conveying area is formed between the partition plates (62) and the edge plates (63) and the adjusting plate (64), the center roller (61) is in a hollow body, and the quantitative adjusting piece (7) is arranged in the center roller (61), the quantitative adjusting piece (7) controls the lifting of the adjusting plate (64), and is used for adjusting the amount of fertilization.

3. The agricultural rotary cultivator with fertilizing function according to claim 2, characterized in that: The adjusting plate (64) comprises a movable plate one (641), a movable plate two (642) and a spring (643), the movable plate one (641) is movably installed at the middle position in the quantitative conveying area, the movable plate two (642) is symmetrically movably installed in the movable plate one (641), the movable plate two (642) extends out of the movable plate one (641) at both ends and slidably contacts with the partition plate (62), and the spring (643) is fixedly installed between the movable plate one (641).

4. The agricultural rotary cultivator with fertilizing function according to claim 3, characterized in that: The quantitative adjusting piece (7) comprises a fixed plate (71), a servo motor (72), a threaded rod (73), a movable sleeve (74), a fixed rod (75), a limiting block (76), a connecting rope (77) and a corner wheel (78), the fixed plate (71) is fixedly installed in the center roller (61), the servo motor (72) is fixedly installed on the side wall of the fixed plate (71), and the threaded rod (73) is fixedly installed on the output end of the servo motor (72), the movable sleeve (74) is arranged in the center roller (61), the fixed rod (75) is fixedly installed in the center roller (61) in a symmetrical manner, the limiting block (76) is fixedly installed at the tail end of the fixed rod (75), the limiting block (76) is movably installed on the outer side wall of the movable sleeve (74) and is used for circumferentially limiting the movable sleeve (74), the threaded rod (73) is threadedly connected in the movable sleeve (74), the connecting rope (77) is connected between the movable plate (641) and the movable sleeve (74) respectively, and the corner wheel (78) is arranged in the center roller (61) and the connecting rope (77) is overlapped on the corresponding corner wheel (78).

5. The agricultural rotary cultivator with fertilizing function according to claim 1, characterized in that: The rotary tiller (3) comprises a rotary tiller frame (31), a rotary tiller shaft (32), a fixed ring (33) and a rotary tiller blade (34), the rotary tiller frame (31) is symmetrically arranged at the lower end of the main frame body (1), the rotary tiller shaft (32) is movably installed between the rotary tiller frames (31), the fixed ring (33) is linearly arranged on the rotary tiller shaft (32), and the rotary tiller blade (34) is circumferentially arranged on the outer wall of the fixed ring (33).

6. The agricultural rotary cultivator with fertilizing function according to claim 5, characterized in that: The cleaning piece (4) comprises a cleaning frame (41), a cleaning shaft (42) and a cleaning head (43), the cleaning frame (41) is symmetrically arranged at the lower end of the main frame body (1), the cleaning shaft (42) is movably and fixedly installed between the cleaning frames (41), and the cleaning head (43) is linearly arranged on the cleaning shaft (42), and the cleaning head (43) is arranged in pairs on both sides of the fixed ring (33).

7. The agricultural rotary cultivator with fertilizing function according to claim 1, characterized in that: The connecting piece (2) is symmetrically arranged at the upper end of the main frame body (1), the connecting piece (2) comprises an L-shaped connecting frame (21) and a bolt plate (22), the L-shaped connecting frame (21) is fixedly installed at the upper end of the main frame body (1), and the bolt plate (22) is fixedly installed at the tail end of the L-shaped connecting frame (21).

8. The agricultural rotary cultivator with fertilizing function according to claim 1, characterized in that: The main frame body (1) is uniformly distributed with discharge pipes (9), and the discharge pipes (9) and the discharge outlets (8) are arranged one by one.

9. The agricultural rotary cultivator with fertilizing function according to claim 1, characterized in that: The discharge slot (513) is uniformly distributed with arc blocks (10), and the arc blocks (10) are arranged between adjacent discharge outlets (8).

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