Device and method capable of accurately applying decomposition agent for agricultural cultivation
By using a height-adjustable and motor-driven transmission system, the problems of uneven distribution of straw and composting agent and sedimentation in the spray nozzles have been solved, enabling precise application of composting agent and improvement of soil structure, thereby increasing the efficiency of rotary tillage and returning to the field.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-05
- Publication Date
- 2026-04-07
AI Technical Summary
In the existing equipment, the distribution of straw and composting agent is uneven during rotary tillage and returning to the field. The composting agent is prone to sedimentation and clogging of the spray pipe during spraying. The clumps of soil have high resistance, resulting in excessive power consumption and affecting the efficiency and progress of the operation.
The rotary tiller shell is raised and lowered by a height adjustment mechanism, which, combined with a motor-driven transmission system and a mixing rod, ensures that the composting agent is evenly mixed and precisely sprayed. Fixed blades and a compaction roller are used to improve soil structure.
It achieves uniform distribution of straw and composting agent, avoids sedimentation in the spray nozzle, reduces power consumption, and improves operating efficiency and the application effect of composting agent.
Smart Images

Figure CN121795162A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of straw return technology, and in particular to an apparatus and method for precisely applying composting agents in agricultural tillage. Background Technology
[0002] Returning straw to the field is a key technology for building a virtuous cycle of farmland ecology and promoting sustainable agricultural development. Rotary tillage, in particular, can improve soil fertility and optimize the topsoil structure while reducing energy consumption and soil disturbance. It is a commonly used straw return measure in the Huang-Huai-Hai Plain region to address the problem of soil compaction in sandy loam and black soils. During the straw return process, precise application of composting agents helps shorten the straw composting cycle, improve fertilizer efficiency, improve soil structure, and reduce pests and diseases. Therefore, straw return machinery capable of precisely applying composting agents has emerged. These devices rely on advanced sensing technology and intelligent control systems to automatically and precisely control the amount and location of composting agents applied during operation. This allows for targeted improvement of soil quality in different areas of farmland, increased utilization of composting agents, and reduced production costs, thus helping agriculture transform towards a green and sustainable direction and providing strong support for the efficient development of modern agriculture.
[0003] However, in practical use, existing devices may experience uneven distribution of straw and composting agents when burying them in appropriate locations. Furthermore, sedimentation at the bottom during the spraying process can easily clog the spray nozzle, affecting the application effect. Additionally, high resistance from clump-forming soil can lead to excessive power consumption and even mechanical failures, impacting operational efficiency and progress. Therefore, this paper proposes a device and method for precisely applying composting agents during agricultural tillage. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as uneven distribution of straw and composting agent when burying straw and composting agent in appropriate locations during rotary tillage, easy blockage of the spray nozzle by sedimentation at the bottom during spraying of the composting agent mixed with water, affecting the application effect of the composting agent, and excessive power consumption or even mechanical failure due to high resistance from clumped soil, which affects work efficiency and progress. Therefore, this invention proposes a device and method for precisely applying composting agents during agricultural tillage.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A device for precisely applying a composting agent during agricultural tillage includes a fixed frame. A height adjustment mechanism is fixedly connected to the lower part of the fixed frame. A rotary tiller housing is fixedly connected to one side of the height adjustment mechanism. The height adjustment mechanism drives the rotary tiller housing to move up and down. A first motor is mounted on the upper part of the rotary tiller housing. A first drive wheel and a fourth drive wheel are mounted on the output end of the first motor. The first and fourth drive wheels are rotatably connected to the rotary tiller housing. A first drive belt is driven by the first drive wheel, and a second drive wheel is driven by the first drive belt. The second drive wheel is fixedly connected to... A rotary cutter cylinder is connected to the rotary tiller housing. The fourth drive wheel is connected to a second drive belt, which in turn is connected to a third drive wheel. A coaxial reversing assembly is provided on one side of the third drive wheel. The coaxial reversing assembly drives the first and second stirring rods to rotate. The first and second stirring rods are rotatably connected to a composting agent tank. The composting agent tank is fixedly connected to the top of the rotary tiller housing. A spraying assembly is provided at the bottom of the composting agent tank. A pressure pump is provided between the spraying head and the composting agent tank. The pressure pump pressurizes and delivers the composting agent in the tank.
[0006] The above technical solution further includes: The spraying assembly includes a spray head fixedly connected to the bottom of the rotary tiller housing. A third motor is installed inside the spray head, and a movable baffle is installed at the output end of the third motor. The movable baffle is rotatably connected to the spray head. By controlling the rotation angle of the movable baffle, the spraying amount of composting agent can be precisely adjusted.
[0007] The rotary tiller housing has fixed blades inside, and a pressing roller is rotatably connected to the rear end of the rotary tiller housing. The pressing roller can further compact and level the soil during the rotary tillage process.
[0008] The coaxial reversing assembly includes a commutator housing fixedly connected to one side of the decomposing agent tank. A second gear is rotatably connected inside the commutator housing. The second gear is fixedly connected to a third transmission wheel. The rotation of the second gear drives the subsequent gear transmission.
[0009] The second gear is meshed with a third gear, the third gear is meshed with a fourth gear, the fourth gear is fixedly connected to an outer rod, the outer rod is rotatably connected to a composting agent tank, and the outer rod is fixedly connected to a first stirring rod.
[0010] The second gear is fixedly connected to an inner rod, which is rotatably connected to an outer rod. The inner rod is fixedly connected to a second stirring rod.
[0011] The height adjustment mechanism includes a lifting frame fixedly connected to the lower part of the fixed frame, a connecting bracket slidably connected to the lifting frame, and a rotary tiller housing fixedly connected to one side of the connecting bracket. The height is adjusted by sliding the connecting bracket on the lifting frame.
[0012] A second motor is provided on one side of the connecting bracket, and a worm gear is provided at the output end of the second motor. The worm gear is meshed with a worm wheel, and the worm wheel is rotatably connected to the lifting frame. A first gear is fixedly connected to the worm wheel, and an adjusting rack is meshed with the first gear. The adjusting rack is fixedly connected to the lifting frame. The lifting and lowering of the rotary tiller shell is achieved through this series of transmissions.
[0013] A method of using an agricultural tillage device for precisely applying a composting agent includes the following steps: Step 1: Using the height adjustment mechanism, move the rotary tiller shell up and down to adjust the device to a suitable height for current tillage and application of composting agents; Step Two: Start the first motor. The first drive wheel at its output end drives the second drive wheel via the first drive belt. The second drive wheel drives the rotary cutter drum to rotate. The sharp blades on the high-speed rotating rotary cutter drum continuously cut into the soil, breaking large clumps of soil into fine particles. At the same time, it deeply tills the soil, effectively breaking up the compacted soil structure and greatly improving the soil's aeration and water permeability, creating favorable soil conditions for subsequent crop root growth and nutrient absorption. Step 3: The fourth transmission wheel at the output end of the first motor drives the third transmission wheel to rotate through the second transmission belt. The rotation of the third transmission wheel drives the first and second stirring rods inside the composting agent tank to rotate through the coaxial reversing assembly, stirring the composting agent inside, so that the composting agent particles are mixed with water, and preventing sedimentation during the spraying process. Step 4: A spraying component is installed at the bottom of the composting agent tank. During the spraying process, the spraying component controls the amount of composting agent sprayed, so as to achieve precise application of composting agent.
[0014] The present invention has the following beneficial effects: 1. In this invention, during rotary tillage, starting the first motor drives the first and fourth transmission wheels to rotate. The rotation of the first transmission wheel drives the rotary cutter cylinder to rotate. At this time, the rotary tillage shell is in contact with the soil. The fixed blades, which are fixedly installed inside the rotary tillage shell, are stable and stationary. The rotating rotary cutter cylinder and the stationary fixed blades cooperate to form a highly efficient cutting and crushing structure, ensuring the straw crushing effect. During the crushing process, the rotation of the fourth transmission wheel can simultaneously drive the second and first stirring rods to rotate, thereby stirring and mixing the composting agent inside the composting agent tank and ensuring that the composting agent does not precipitate, thus ensuring the application effect of the composting agent.
[0015] 2. In this invention, before the device is used, the second motor can be started to drive the connecting bracket to move up and down along the lifting frame, thereby adjusting the height of the rotary tillage shell during rotary tillage and ensuring that the rotary tillage shell can be close to the ground. During rotary tillage, the third motor can be started to drive the movable baffle to rotate, control the amount of composting agent sprayed, and achieve precise application of composting agent. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a device for precisely applying corrosive agents in agricultural tillage, as proposed in this invention. Figure 2 This is a schematic diagram of the connection relationship of the fixing frame in this invention; Figure 3 This is a schematic diagram of the internal structure of the rotary tiller shell in this invention; Figure 4 This is a schematic diagram of the connection relationship of the hobbing cylinder in this invention; Figure 5 This is a schematic diagram of the internal structure of the composting agent tank in this invention; Figure 6 This is a schematic diagram of the internal structure of the commutator housing in this invention; Figure 7 This is a schematic diagram of the internal structure of the spray head in this invention.
[0017] In the diagram: 1. Fixed frame; 2. First motor; 3. Connecting bracket; 4. Rotary tillage shell; 5. Composting agent box; 6. Press roller; 7. Adjusting rack; 8. Second motor; 9. Worm gear; 10. Worm wheel; 11. Lifting frame; 12. First gear; 13. Roller cylinder; 14. Fixed blade; 15. First transmission wheel; 16. First transmission belt; 17. Second transmission wheel; 18. Second transmission belt; 19. Third transmission wheel; 20. Spray head; 21. Fourth transmission wheel; 22. Commutator housing; 23. First stirring rod; 24. Second stirring rod; 25. Second gear; 26. Third gear; 27. Fourth gear; 28. Inner rod; 29. Outer rod; 30. Third motor; 31. Movable baffle. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Example 1 like Figures 1-7As shown, the present invention proposes a device for precisely applying composting agents during agricultural tillage, comprising a fixed frame 1, a height adjustment mechanism fixedly connected to the lower part of the fixed frame 1, and a rotary tiller housing 4 fixedly connected to one side of the height adjustment mechanism. The height adjustment mechanism drives the rotary tiller housing 4 to move up and down. A first motor 2 is provided on the upper part of the rotary tiller housing 4. A first transmission wheel 15 and a fourth transmission wheel 21 are provided at the output end of the first motor 2. The first transmission wheel 15 and the fourth transmission wheel 21 are rotatably connected to the rotary tiller housing 4. The first transmission wheel 15 is driven by a first transmission belt 16, and the first transmission belt 16 is driven by a second transmission wheel 17. The second transmission wheel 17 is fixed. A rotary cutter cylinder 13 is connected to the rotary tiller housing 4. The rotary cutter cylinder 13 is rotatably connected to the rotary tiller housing 4. The fourth transmission wheel 21 is connected to the second transmission belt 18. The second transmission belt 18 is connected to the third transmission wheel 19. A coaxial reversing assembly is provided on one side of the third transmission wheel 19. The coaxial reversing assembly drives the first stirring rod 23 and the second stirring rod 24 to rotate. The first stirring rod 23 and the second stirring rod 24 are rotatably connected to the composting agent tank 5. The composting agent tank 5 is fixedly connected to the top of the rotary tiller housing 4. A spraying assembly is provided at the bottom of the composting agent tank 5. A pressure pump is provided between the spraying head 20 and the composting agent tank 5. The pressure pump pressurizes and sends out the composting agent in the tank.
[0020] A fixed blade 14 is fixedly connected inside the rotary tiller housing 4. A press roller 6 is rotatably connected to the rear end of the rotary tiller housing 4. The press roller 6 can further compact and level the soil during rotary tillage. The coaxial reversing assembly includes a commutator housing 22 fixedly connected to one side of the composting agent tank 5. A second gear 25 is rotatably connected inside the commutator housing 22. The second gear 25 is fixedly connected to the third transmission wheel 19. The rotation of the second gear 25 drives the subsequent gear transmission. The second gear 25 is meshed with the third gear 26. The third gear 26 is meshed with the fourth gear 27. The fourth gear 27 is fixedly connected to the outer rod 29. The outer rod 29 is rotatably connected to the composting agent tank 5. The outer rod 29 is fixedly connected to the first stirring rod 23. The second gear 25 is fixedly connected to the inner rod 28. The inner rod 28 is rotatably connected to the outer rod 29. The inner rod 28 is fixedly connected to the second stirring rod 24.
[0021] In this embodiment, during rotary tillage, starting the first motor 2 drives the first transmission wheel 15 and the fourth transmission wheel 21 to rotate. The rotation of the first transmission wheel 15 drives the first transmission belt 16, which in turn drives the second transmission wheel 17. The rotation of the second transmission wheel 17 drives the fixedly connected rotary cutter cylinder 13 to rotate. At this time, the rotary tillage shell 4 is in contact with the soil. The fixed blades 14, which are fixedly installed inside the rotary tillage shell 4, are stable and stationary. The rotating rotary cutter cylinder 13 and the stationary fixed blades 14 cooperate to form a highly efficient cutting and crushing structure, ensuring the straw crushing effect. During the crushing process, the rotation of the fourth transmission wheel 21 drives the second transmission belt 18. When rotation occurs, the second transmission belt 18 rotates, driving the third transmission wheel 19 connected to the transmission to rotate. The rotation of the third transmission wheel 19 drives the fixedly connected second gear 25 to rotate, and the rotation of the second gear 25 drives the meshing third gear 26 to rotate. The rotation of the third gear 26 drives the meshing fourth gear 27 to rotate, and the rotation of the fourth gear 27 drives the fixedly connected outer rod 29 to rotate. At the same time, the second gear 25 drives the third gear 26 to rotate, and simultaneously drives the inner rod 28 to rotate. The rotation of the inner rod 28 and the outer rod 29 drives the fixedly connected second stirring rod 24 and the first stirring rod 23 to rotate, thereby stirring and mixing the composting agent inside the composting agent tank 5, ensuring that the composting agent does not precipitate, and ensuring the application effect of the composting agent.
[0022] Example 2 like Figures 1-7 As shown, the spraying assembly includes a spray head 20 fixedly connected to the bottom of the rotary tillage shell 4. A third motor 30 is installed inside the spray head 20. A movable baffle 31 is installed at the output end of the third motor 30. The movable baffle 31 is rotatably connected to the spray head 20. By controlling the rotation angle of the movable baffle 31, the spraying amount of composting agent can be precisely adjusted.
[0023] The height adjustment mechanism includes a lifting frame 11 fixedly connected to the lower part of the fixed frame 1. A connecting bracket 3 is slidably connected to the lifting frame 11. A rotary tiller housing 4 is fixedly connected to one side of the connecting bracket 3. Height adjustment is achieved by sliding the connecting bracket 3 on the lifting frame 11. A second motor 8 is provided on one side of the connecting bracket 3. A worm 9 is provided at the output end of the second motor 8. A worm wheel 10 is meshed with the worm 9. The worm wheel 10 is rotatably connected to the lifting frame 11. A first gear 12 is fixedly connected to the worm wheel 10. An adjusting rack 7 is meshed with the first gear 12. The adjusting rack 7 is fixedly connected to the lifting frame 11. The lifting and lowering of the rotary tiller housing 4 is achieved through this series of transmissions.
[0024] In this embodiment, before the device is used, starting the second motor 8 can drive the worm 9 to rotate. The rotation of the worm 9 drives the meshing worm wheel 10 to rotate, and the rotation of the worm wheel 10 drives the fixedly connected first gear 12 to rotate. The rotation of the first gear 12 can move along the meshing adjusting rack 7, thereby driving the connecting bracket 3 to move up and down along the lifting frame 11, thereby adjusting the height of the rotary tillage shell 4 during rotary tillage, ensuring that the rotary tillage shell 4 can be close to the ground. During rotary tillage, starting the third motor 30 can drive the movable baffle 31 to rotate, controlling the amount of composting agent sprayed, and achieving precise application of composting agent.
[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for precisely applying a composting agent during agricultural tillage, comprising a fixing frame (1), characterized in that, The lower part of the fixed frame (1) is fixedly connected to a height adjustment mechanism. A rotary tillage shell (4) is fixedly connected to one side of the height adjustment mechanism. The rotary tillage shell (4) is driven to move up and down through the height adjustment mechanism. A first motor (2) is provided on the upper part of the rotary tillage shell (4). A first transmission wheel (15) and a fourth transmission wheel (21) are provided at the output end of the first motor (2). The first transmission wheel (15) and the fourth transmission wheel (21) are rotatably connected to the rotary tillage shell (4). The first transmission wheel (15) is driven by a first transmission belt (16). The first transmission belt (16) is driven by a second transmission wheel (17). The second transmission wheel (17) is fixedly connected to the first transmission belt (16). A rotary cutter cylinder (13) is fixedly connected to the rotary tiller housing (4). The rotary cutter cylinder (13) is rotatably connected to the rotary tiller housing (4). The fourth transmission wheel (21) is rotatably connected to the second transmission belt (18). The second transmission belt (18) is rotatably connected to the third transmission wheel (19). A coaxial reversing assembly is provided on one side of the third transmission wheel (19). The coaxial reversing assembly drives the first stirring rod (23) and the second stirring rod (24) to rotate. The first stirring rod (23) and the second stirring rod (24) are rotatably connected to the composting agent box (5). The composting agent box (5) is fixedly connected to the top of the rotary tiller housing (4). A spraying assembly is provided at the bottom of the composting agent box (5).
2. The device for precisely applying a composting agent in agricultural tillage according to claim 1, characterized in that, The spraying assembly includes a spray head (20) fixedly connected to the bottom of the rotary tillage shell (4). A third motor (30) is installed inside the spray head (20). A movable baffle (31) is installed at the output end of the third motor (30). The movable baffle (31) is rotatably connected to the spray head (20).
3. The device for precisely applying a composting agent in agricultural tillage according to claim 1, characterized in that, The rotary tillage shell (4) has a fixed blade (14) inside, and a pressing roller (6) is rotatably connected to the rear end of the rotary tillage shell (4).
4. The device for precisely applying a composting agent in agricultural tillage according to claim 1, characterized in that, The coaxial reversing assembly includes a commutator housing (22) fixedly connected to one side of the curing agent tank (5), and a second gear (25) is rotatably connected inside the commutator housing (22). The second gear (25) is fixedly connected to the third transmission wheel (19).
5. The device for precisely applying a composting agent in agricultural tillage according to claim 4, characterized in that, The second gear (25) is meshed with the third gear (26), the third gear (26) is meshed with the fourth gear (27), the fourth gear (27) is fixedly connected to the outer rod (29), the outer rod (29) is rotatably connected to the composting agent box (5), and the outer rod (29) is fixedly connected to the first stirring rod (23).
6. The device for precisely applying a composting agent in agricultural tillage according to claim 5, characterized in that, The second gear (25) is fixedly connected to an inner rod (28), which is rotatably connected to an outer rod (29). The inner rod (28) is fixedly connected to a second stirring rod (24).
7. The device for precisely applying a composting agent in agricultural tillage according to claim 1, characterized in that, The height adjustment mechanism includes a lifting frame (11) fixedly connected to the lower part of the fixed frame (1), a connecting bracket (3) slidably connected to the lifting frame (11), and a rotary tillage shell (4) fixedly connected to one side of the connecting bracket (3).
8. The device for precisely applying a composting agent in agricultural tillage according to claim 7, characterized in that, A second motor (8) is provided on one side of the connecting bracket (3). A worm (9) is provided at the output end of the second motor (8). The worm (9) is meshed with a worm wheel (10). The worm wheel (10) is rotatably connected to the lifting frame (11). The worm wheel (10) is fixedly connected to a first gear (12). The first gear (12) is meshed with an adjusting rack (7). The adjusting rack (7) is fixedly connected to the lifting frame (11).
9. The method of using the device for precisely applying a composting agent in agricultural tillage according to claim 1, characterized in that, Includes the following steps: Step 1: Using the height adjustment mechanism, drive the rotary tillage shell (4) up and down to adjust the device to a height suitable for current tillage and application of composting agent; Step 2: Start the first motor (2). The first transmission wheel (15) at its output end drives the second transmission wheel (17) through the first transmission belt (16). The second transmission wheel (17) drives the roller drum (13) to rotate. The sharp blades on the high-speed rotating roller drum (13) continuously cut into the soil, causing large clumps of soil to be cut and broken into fine particles. At the same time, the soil is deeply tilled, effectively breaking the compacted structure of the soil and greatly improving the soil's aeration and permeability, creating good soil conditions for the root growth and nutrient absorption of subsequent crops. Step 3: The fourth transmission wheel (21) at the output end of the first motor (2) drives the third transmission wheel (19) to rotate through the second transmission belt (18). The rotation of the third transmission wheel (19) drives the first stirring rod (23) and the second stirring rod (24) inside the composting agent tank (5) to rotate through the coaxial reversing assembly, stirring the composting agent inside, so that the composting agent particles are mixed with water, and preventing sedimentation during the spraying process. Step 4: The bottom of the composting agent tank (5) is equipped with a spraying component. During the spraying process, the spraying component controls the amount of composting agent sprayed to achieve precise application of composting agent.