Double-row solid soil conditioner with strong and uniform application and ridging combined operation machine
By designing a combined machine for applying solid soil amendments in double rows on wide ridges and ridging, and utilizing an automatic controller and a conveying mechanism for applying solid soil amendments, the problems of uneven application and easy clogging in existing technologies have been solved, achieving efficient and uniform application of solid soil amendments and a low failure rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NORTHEAST AGRICULTURAL UNIVERSITY
- Filing Date
- 2026-05-28
- Publication Date
- 2026-06-30
AI Technical Summary
Existing machinery for applying solid soil conditioner in double rows on wide ridges suffers from problems such as uneven application, easy clogging, dust generation from breakage, poor operation quality, and high failure rate, which limits its application, especially in wide ridge double-row planting agronomy.
Design a machine for combined application and ridging of solid soil amendment in double-row ridges. It adopts an automatic controller, air pump, speed sensor and strong application conveying mechanism. Through the coordinated work of multiple material application and discharge valves, sprockets and scrapers, it can achieve uniform distribution and anti-clogging conveying of solid soil amendment, supplemented by air blowing to assist in flow guidance.
It enables uniform application of solid soil conditioner in two rows on multiple large ridges, reducing the failure rate, improving operation quality and efficiency, and has environmental benefits.
Smart Images

Figure CN122296104A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to agricultural machinery and mainly relates to an operating machine for the strong and uniform application of solid soil conditioner in double-row ridges and for ridging operations. Background Technology
[0002] In agricultural production, the application of solid soil amendments is one of the important methods and means to improve soil structure, increase organic matter content, and enhance soil permeability and water and fertilizer retention capacity. Traditional solid soil amendment application equipment is mostly for single-row, decentralized, and independent operation, lacking the ability to operate simultaneously in multiple rows. This results in low efficiency and high operating costs for large-scale operations. In recent years, with the widespread application of double-row planting techniques on wide ridges (ridge width of 1-1.1 meters or more), equipment for simultaneously applying solid soil amendments on multiple wide ridges and in double rows has been developed and applied on a small scale. However, due to deficiencies and defects in structural design, existing equipment suffers from uneven application rates in multiple rows on wide ridges and in double rows. Solid soil amendments are also prone to clogging, breakage, and dust generation during the conveying and application process, affecting and reducing the quality and efficiency of the operation, resulting in poor operation quality and a high failure rate. Summary of the Invention
[0003] The purpose of this invention is to address the problems existing in the prior art and, in light of the actual needs of the current mechanized application of solid soil conditioner in double rows on multi-row ridges, to develop and design a new structured machine for the combined operation of strong and uniform application of solid soil conditioner in double rows on multi-row ridges and ridging. This machine aims to achieve good consistency and uniformity in the application of solid soil conditioner in double rows on multi-row ridges, prevent material blockage during operation, reduce the failure rate, and improve environmental protection.
[0004] The objective of this invention is achieved as follows: An automatic controller, an air pump, and a speed sensor are installed on the frame assembly. A forced-discharge conveying mechanism is fixedly installed in the middle of the frame assembly, below the material bins on the left and right sides. The structure of the forced-discharge conveying mechanism is as follows: four material application and discharge valves in the front and rear rows are concentrically connected in series on the frame assembly. Driven and driven sprockets are rotatably installed on the frame assembly at the left and right ends of the material application and discharge valves in both rows, respectively. A speed-regulating motor shaft, fixed on the frame assembly, is connected to the driven sprocket. The driven sprocket is connected to the material application and discharge valve at the right end of the front row. Feed hoppers are fixedly mounted on the section between the driven sprocket and the material application and unloading valve at the left end of the rear row. The two feed hoppers are respectively connected to the left and right material boxes. The material application and unloading valve is composed of a grooved valve body, a flexible air inlet pipe, an air inlet nozzle, a C-shaped inner tube, a C-shaped outer tube, a rotary air nozzle, a servo motor and sealing ring, a stepper motor, a drive gear, a driven gear, a front end cover, and a locking buckle assembly. The C-shaped inner tube is rotatably mounted within the fixed, inverted grooved valve body. The C-shaped outer tube is fixedly fitted onto the outside of the C-shaped inner tube. A C-shaped air passage is provided between the outer wall of the C-shaped inner tube and the inner wall of the C-shaped outer tube. The air inlet end of the flexible air inlet pipe is connected to an air pump. The air outlet is connected to the C-shaped air passage via an air inlet. A sealing ring is installed in the lower port of the C-shaped air passage. A rotary air nozzle is installed in the through hole at the lower part of the C-shaped outer tube, allowing for circumferential reciprocating motion. A servo motor shaft, fixed to the outside of the C-shaped inner tube, is coaxially connected to the rotary air nozzle. A stepper motor is fixed to the outer wall of the slotted valve body. A drive gear is fixed to the stepper motor shaft. A driven gear is fixed to the C-shaped inner tube, meshing with the drive gear. A front end cover is installed on the front side of the slotted valve body, hinged to the slotted valve body, and a locking buckle is installed on the front end cover and the slotted valve body. Multiple connecting pipes connect the feed hopper to... The material application and discharge valves are connected sequentially to each other and to adjacent material application and discharge valves. A ring chain equipped with scrapers can be moved laterally and is sequentially inserted into the cavity of the C-shaped inner tube of the front and rear feed hoppers, connecting pipes, and material application and discharge valves. The left and right ends of the ring chain are respectively fitted onto the driven sprocket and the driving sprocket. The air supply pipe connects the air pump to the flexible air inlet pipe, and the eight material supply pipes connect the eight material application and discharge valves to the eight double-disc furrow openers. The automatic controller is connected to the air pump, speed sensor, speed regulating motor, servo motor, and stepper motor through wires. This constitutes a combined operation machine for double-row strong uniform application and ridging of solid soil conditioner in large ridges.
[0005] This invention employs an integrated design to achieve simultaneous joint operation of multi-row ridging and double-row application of solid soil amendment on the ridges. A high-flow-rate, anti-clogging conveying mechanism is used to deliver and discharge the solid soil amendment in a large volume. Multiple material application and discharge valves connected in series within the mechanism work together to achieve uniform distribution, enabling precise and even multi-row application. Air blowing assists in guiding and unloading, significantly improving the stability and efficiency of the machine. It features a novel, unique, and reasonable structure, high operational quality, high efficiency, few malfunctions, and excellent environmental performance, providing technical support for the mechanized joint operation of multi-row ridging and double-row application of solid soil amendment. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the overall structure of the combined machine for applying solid soil conditioner in double rows of large ridges and ridging.
[0007] Figure 2 yes Figure 1 The right view;
[0008] Figure 3 yes Figure 2 Top view;
[0009] Figure 4 This is a schematic diagram of the overall structure of the high-pressure uniform application conveying mechanism;
[0010] Figure 5 yes Figure 4 Enlarged view of section A in the middle;
[0011] Figure 6 yes Figure 5 Enlarged view of section B;
[0012] Figure 7 yes Figure 6 C-C sectional view;
[0013] Figure 8 This is a schematic diagram of the rotating air nozzle structure;
[0014] Figure 9 yes Figure 8 The D-D sectional view.
[0015] Part number description in the image:
[0016] 1. Frame assembly; 2. Forced uniform application conveying mechanism; 2-1. Speed-regulating motor; 2-2. Drive sprocket; 2-3. Connecting pipe; 2-4. Material application and discharge valve; 2-4-1. Flexible air inlet pipe; 2-4-2. Groove valve body; 2-4-3. Drive gear; 2-4-4. Stepper motor; 2-4-5. Driven gear; 2-4-6. C-shaped inner tube; 2-4-7. Servo motor; 2-4-8. C-shaped outer tube; 2-4-9. Rotary air nozzle. 2-4-10, Sealing ring; 2-4-11, Air inlet; 2-4-12, Front cover; 2-4-13, Locking buckle; 2-5, Feed hopper; 2-6, Circular chain; 2-7, Scraper; 2-8, Driven sprocket; 3, Three-point suspension mechanism; 4, Deep loosening shovel; 5, Double disc trencher; 6, Moldboard ridging plow; 7, Press roller; 8, Conveying pipe; 9, Automatic controller; 10, Material box; 11, Air conveying pipe; 12, Air pump; 13, Speed sensor. Detailed Implementation
[0017] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. A combined machine for applying solid soil conditioner in double rows and for ridging, comprising: material boxes 10 fixedly mounted on the upper left and right sides of the frame assembly 1; a three-point suspension mechanism 3 mounted on the front end of the frame assembly 1; eight deep loosening shovels 4, double-disc furrow openers 5, four moldboard ridging plows 6, and press rollers 7 evenly distributed transversely from front to back on the lower side of the frame assembly 1; an automatic controller 9, an air pump 12, and a speed sensor 13 mounted on the frame assembly 1; and a strong application conveying mechanism 2 fixedly mounted in the middle of the frame assembly 1, below the material boxes 10 on the left and right sides. The structure of the strong application conveying mechanism 2 is as follows: Four material application and discharge valves 2-4 in the front row and four in the rear row are concentrically connected and installed on the frame assembly 1. A driven sprocket 2-8 and a driving sprocket 2-2 are rotatably installed on the frame assembly 1 at the left and right ends of the material application and discharge valves 2-4 in the double row, respectively. The motor shaft of the speed-regulating motor 2-1, which is fixed on the frame assembly 1, is connected to the driving sprocket 2-2. Feed hoppers 2-5 are fixedly installed between the driving sprocket 2-2 and the material application and discharge valve 2-4 at the right end of the front row, and between the driven sprocket 2-8 and the material application and discharge valve 2-4 at the left end of the rear row, respectively. The two feed hoppers 2-5 are connected to the left and right material boxes 10, respectively.The material application and unloading valve 2-4 is assembled from a grooved valve body 2-4-2, a flexible air inlet pipe 2-4-1, an air inlet nozzle 2-4-11, a C-shaped inner tube 2-4-6, a C-shaped outer tube 2-4-8, a rotary air nozzle 2-4-9, a servo motor 2-4-7 and a sealing ring 2-4-10, a stepper motor 2-4-4, a drive gear 2-4-3, a driven gear 2-4-5, a front end cover 2-4-12, and a locking buckle 2-4-13. The C-shaped inner tube 2-4-6 is rotatably installed within the fixed, inverted grooved valve body 2-4-2. The C-shaped outer tube 2-4-8 is fixedly fitted onto the outside of the C-shaped inner tube 2-4-6. A C-shaped air passage is provided between the outer wall of the C-shaped outer tube 2-4-6 and the inner wall of the C-shaped outer tube 2-4-8. The air inlet end of the flexible air inlet tube 2-4-1 is connected to the air pump 12, and the air outlet end of the flexible air inlet tube 2-4-1 is connected to the C-shaped air passage through the air inlet nozzle 2-4-11. A sealing ring 2-4-10 is installed in the lower port of the C-shaped air passage. A rotating air nozzle 2-4-9 is installed in the through hole at the lower part of the C-shaped outer tube 2-4-8, which can be circumferentially reciprocated. The motor shaft of the servo motor 2-4-7, which is fixed on the outside of the C-shaped inner tube 2-4-6, is coaxially connected to the rotating air nozzle 2-4-9. The stepper motor 2-4-4 is fixed on the outer wall of the side wall of the slotted valve body 2-4-2, and actively... Gear 2-4-3 is fixedly mounted on the motor shaft of stepper motor 2-4-4. Driven gear 2-4-5 is fixedly mounted on C-shaped inner tube 2-4-6. Driven gear 2-4-5 meshes with driving gear 2-4-3. Front cover 2-4-12 is closable and installable on the front side of slotted valve body 2-4-2. Front cover 2-4-12 is hinged to slotted valve body 2-4-2, and locking buckle 2-4-13 is installed on front cover 2-4-12 and slotted valve body 2-4-2. Multiple connecting pipes 2-3 sequentially connect feed hopper 2-5 to material application and discharge valve 2-4 and between adjacent material application and discharge valves 2-4, and are equipped with scrapers. The annular chain 2-6 of 2-7 is laterally movable and sequentially inserted into the cavity of the C-shaped inner tube 2-4-6 of the front and rear feed hoppers 2-5, connecting pipe 2-3, and material application and discharge valve 2-4. The left and right ends of the annular chain 2-6 are respectively fitted onto the driven sprocket 2-8 and the driving sprocket 2-2. The air supply pipe 11 connects the air pump 12 to the flexible air inlet pipe 2-4-1, and the eight material supply pipes 8 connect the eight material application and discharge valves 2-4 to the eight double-disc trenchers 5. The automatic controller 9 is connected to the air pump 12, speed sensor 13, speed regulating motor 2-1, servo motor 2-4-7, and stepper motor 2-4-4 via wires.
[0018] During operation, the machine is suspended and connected to the rear of the tractor using a three-point suspension mechanism 3. As the tractor moves forward, the deep loosening shovel 4 and the double-disc ditcher 5 successively complete the deep loosening of the soil and the opening of fertilizer trenches. Simultaneously, the speed-regulating motor 2-1 drives the ring chain 2-6 to rotate through the drive sprocket 2-2 and with the support of the driven sprocket 2-8. The scraper 2-7 continuously and continuously feeds the solid amendment that falls from the material box 10 into the front and rear feed hoppers 2-5 into the C-shaped inner tubes 2-4-6 of the four material application and discharge valves 2-4 in the front and rear rows, respectively. At the same time, the stepper motor 2-4-4 drives the C-shaped inner tubes 2-4-6 to rotate, so that their openings face downwards and to the side. Under the action of gravity, the solid amendment falls down. The material is discharged from the bottom opening of the inverted grooved valve body 2-4-2. At this time, the pressurized airflow of the air pump 12 is filled into the C-shaped air passage between the C-shaped inner tube 2-4-6 and the C-shaped outer tube 2-4-8 through the flexible air inlet pipe 2-4-1 and the air inlet nozzle 2-4-11. The pressurized airflow is blown towards the downward-discharged solid amendment from the upper outlet of the C-shaped air passage and the rotating air nozzle 2-4-9 at the lower end of the C-shaped outer tube 2-4-8. While ensuring the rapid and accurate discharge of the material, the residual material at the outlet is also removed. The material discharged from the grooved valve body 2-4-2 is sent into the fertilizer ditch opened by the double disc furrow opener 5 through the conveying pipe 8. The moldboard ridging plow 6 and the press roller 7 complete the covering, ridging and pressing in sequence, and complete the simultaneous application and ridging of four large ridges, two rows on each large ridge, and a total of eight rows in one continuous operation.
[0019] During operation, based on the machine's operating speed and the pre-set target application amount, the automatic controller 9 receives the speed signal from the speed sensor 13, calculates the travel speed signal and target application amount parameters, and drives the stepper motors 2-4-4 on each material application and discharge valve 2-4 to rotate in real time through output pulse signals. This causes the C-shaped inner tubes 2-4-6 on each material application and discharge valve 2-4 to rotate at different angles, ensuring the target application amount while improving the uniformity of the amendment application amount in each row. The automatic controller 9 controls the rotation angle of the C-shaped inner tubes 2-4-6 on each of the four material application and discharge valves 2-4 in the front and rear rows to be different. Specifically, the rotation angle of the C-shaped inner tubes 2-4-6 on the first material application and discharge valve 2-4 near the feed hopper 2-5 in the front and rear rows gradually increases to the fourth material application and discharge valve 2-4 at the end. The automatic controller 9 automatically adjusts the rotation direction and angle of the servo motor 2-4-7 in real time, driving the rotating air nozzle 2-4-9 to rotate in the through hole at the bottom of the C-shaped outer tube 2-4-8, always keeping each rotating air nozzle 2-4-9 facing the discharge port, so that the pressurized airflow at the discharge port can clean the inner wall of the groove valve body 2-4-2 and the conveying pipe 8.
Claims
1. A combined machine for applying solid soil conditioner in double rows on large ridges and for ridging, wherein material boxes (10) are fixedly mounted on the upper left and right sides of the frame assembly (1), a three-point suspension mechanism (3) is installed on the front end of the frame assembly (1), and eight deep loosening shovels (4), double disc furrow openers (5), four moldboard ridging plows (6), and press rollers (7) are installed horizontally and evenly from front to back on the lower side of the frame assembly (1), characterized in that: Automatic controller (9), air pump (12) and speed sensor (13) are respectively installed on rack assembly (1), and strong discharge uniform application conveying mechanism (2) is fixedly installed at the lower part between left and right material boxes (10) at the middle part of rack assembly (1), the structure of strong discharge uniform application conveying mechanism (2) is that four material application discharge valves (2-4) of front row and rear row are sequentially and concentrically connected and arranged on rack assembly (1), driven sprocket (2-8) and driving sprocket (2-2) are rotatably installed at the left end and right end of double rows of material application discharge valves (2-4) on rack assembly (1), and the motor shaft of speed regulating motor (2-1) fixedly installed on rack assembly (1) is connected with driving sprocket (2-2), feed hopper (2-5) is fixedly arranged at the part between driving sprocket (2-2) and the material application discharge valve (2-4) at the right end of front row and between driven sprocket (2-8) and the material application discharge valve (2-4) at the left end of rear row, and the two feed hoppers (2-5) are respectively communicated with left and right material boxes (10).The material application and unloading valve (2-4) is assembled from a grooved valve body (2-4-2), a flexible air inlet pipe (2-4-1), an air inlet nozzle (2-4-11), a C-shaped inner tube (2-4-6), a C-shaped outer tube (2-4-8), a rotary air nozzle (2-4-9), a servo motor (2-4-7) and a sealing ring (2-4-10), a stepper motor (2-4-4), a drive gear (2-4-3), a driven gear (2-4-5), a front end cover (2-4-12), and a locking buckle (2-4-13). The C-shaped inner tube (2-4-6) is rotatably installed in the fixed and inverted grooved valve body (2-4-2), and the C-shaped outer tube (2-4-8) is fixedly fitted inside the C-shaped inner tube. On the outside of the tube (2-4-6), a C-shaped air passage is provided between the outer wall of the C-shaped inner tube (2-4-6) and the inner wall of the C-shaped outer tube (2-4-8). The air inlet end of the flexible air inlet tube (2-4-1) is connected to the air pump (12). The air outlet end of the flexible air inlet tube (2-4-1) is connected to the C-shaped air passage through the air inlet nozzle (2-4-11). A sealing ring (2-4-10) is installed in the lower port of the C-shaped air passage. A rotating air nozzle (2-4-9) is installed in the through hole at the lower part of the C-shaped outer tube (2-4-8) and can swing back and forth in a circumferential manner. The motor shaft of the servo motor (2-4-7) fixed on the outside of the C-shaped inner tube (2-4-6) is coaxially connected to the rotating air nozzle (2-4-9). The stepper motor (2 -4-4) is fixedly mounted on the outer wall of the side wall of the slotted valve body (2-4-2). The driving gear (2-4-3) is fixedly mounted on the motor shaft of the stepper motor (2-4-4). The driven gear (2-4-5) is fixedly mounted on the C-shaped inner tube (2-4-6). The driven gear (2-4-5) meshes with the driving gear (2-4-3). A front end cover (2-4-12) is installed on the front side of the slotted valve body (2-4-2) in an openable and closable manner. The front end cover (2-4-12) is hinged to the slotted valve body (2-4-2), and a locking buckle (2-4-13) is installed on the front end cover (2-4-12) and the slotted valve body (2-4-2). Multiple connecting pipes (2-3) respectively connect the feed hopper (2-5) The material application and discharge valves (2-4) and adjacent material application and discharge valves (2-4) are connected in sequence. The annular chain (2-6) equipped with scraper (2-7) can be moved laterally and is sequentially inserted into the cavity of the feed hopper (2-5), connecting pipe (2-3) and the C-shaped inner tube (2-4-6) of the material application and discharge valve (2-4). The left and right ends of the annular chain (2-6) are respectively fitted on the driven sprocket (2-8) and the driving sprocket (2-2); the air pipe (11) connects the air pump (12) to the flexible air inlet pipe (2-4-1), and the 8 material delivery pipes (8) connect the 8 material application and discharge valves (2-4) to the 8 double disc trenchers (5) respectively.The automatic controller (9) is connected to the air pump (12), speed sensor (13), speed regulating motor (2-1), servo motor (2-4-7), and stepper motor (2-4-4) via wires.