Cold region rice dry direct seeding machine with fertilization function

Abstract

The utility model provides a cold region rice dry direct seeding machine with a fertilization function, which is characterized in that a basic framework is formed by two groups of parallel frame plates, a first support rod is connected above the frame plates, a first mounting platform is connected below the frame plates, and fertilization components are arranged on two sides of the platform, so that the fertilization function is realized. A rotary tillage cutter, a furrow pressing wheel, a soil covering wheel and a soil pressing roller are sequentially arranged from one side to the other side, the rear side is connected with a second installation platform through a second supporting rod, a stand column on the platform is connected with a pneumatic direct seeding machine collecting and arranging device, and the soil covering wheel is arranged below the stand column. The mud cover is arranged above the rotary tillage cutter, splashing mud can be effectively blocked during rotary tillage operation, mud adhesion is reduced, the rotary tillage efficiency is prevented from being affected, and meanwhile the later cleaning difficulty is reduced. The furrow pressing wheel comprises a plurality of groups of pressing wheels, the interval between two adjacent groups of pressing wheels is 30-35 centimeters, each group of pressing wheels comprises two pressing wheels, the interval between the two pressing wheels in the group is centimeter, and the wheel width of the pressing wheels is 10 centimeters, so that a large-ridge double-row seed belt can be pressed, and rice growth and agricultural operation are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of dryland direct seeding machine technology, specifically to a dryland direct seeding machine for rice in cold regions with fertilization function. Background Technology

[0002] Direct seeding of rice is a cultivation method in which seeds are sown directly on dry land without seedling raising or transplanting. It is also a form of mechanized rice planting. It has the characteristics of saving labor and costs, conserving water resources, saving land, reducing the labor intensity of rice growers, and having significant economic benefits. It is of great significance for realizing the light-weight, professional, large-scale and intensive development of rice production.

[0003] For example, Chinese patent (CN219352298U) discloses a dry direct-seeding rice machine, including a frame, power system, walking system, front implement suspension system, irrigation mechanism, and rear implement suspension system. The walking system includes front drive wheels and rear walking wheels. The power system can drive the front drive wheels to rotate. The front implement suspension system includes a front suspension frame, a soil-collecting and covering mechanism, a fertilizing mechanism, and a ridging and sowing mechanism. The rear implement suspension system includes a rear suspension frame and a mulching mechanism. A linkage transmission mechanism is set between the front and rear suspension frames to achieve synchronous raising and lowering of the front and rear suspension frames. This dry direct-seeding machine has a small overall length, resulting in a small turning radius. During operation, the unsown area at the field edge is small, making it suitable for sowing operations in small and irregular plots.

[0004] The aforementioned dry direct seeding machines lack fertilization functionality, and existing fertilizer applicators typically rely on gravity to allow fertilizer to fall automatically to the fertilization inlet. This can lead to uneven fertilizer distribution, with some areas receiving too much fertilizer while others receive too little. This affects crop nutrient absorption, causing inconsistent growth and impacting yield and quality. Gravity-dependent fertilizer applicators may also encounter issues such as inconsistent fertilizer particle size or clumping, leading to clogging and disrupting normal fertilization. Furthermore, existing dry direct seeding machines for rice often accumulate large amounts of clay on the frame during rotary tillage, reducing tillage efficiency and creating significant cleaning difficulties later on. To address these problems, a dry direct seeding machine for rice in cold regions with fertilization functionality is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cold-region dry direct seeding machine for rice with fertilization function, which solves the problems of the current dry direct seeding machine not having fertilization function, and the dry direct seeding machine being prone to sticking a large amount of soil during rotary tillage, which affects the rotary tillage efficiency and brings great difficulties to the subsequent cleaning.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cold-region dry direct seeding machine with fertilization function, comprising two sets of parallel frame plates, a first support rod fixedly connected above the two sets of frame plates, a first mounting platform fixedly connected at the middle position below the first support rod, fertilization components provided on both the left and right sides above the first mounting platform, a rotary tiller, a furrowing wheel, a soil covering wheel, and a soil pressing roller arranged sequentially from one side to the other between the two sets of frame plates, and a mud-blocking cover provided above the rotary tiller; two second support rods fixedly connected at the rear side between the two sets of frame plates, a second mounting platform fixedly connected at the middle position below the two second support rods, columns fixedly connected at the four corners above the second mounting platform, and an air-driven direct seeding machine collector fixedly connected above the four columns, with the soil covering wheel located below the air-driven direct seeding machine collector.

[0007] Furthermore, the rotary tillage blades include two sets of rotating shafts rotatably disposed between the frame plates. At least three sets of rotary tillage blades are fixedly connected to the outer surface of the rotating shafts and the left and right sides of the first mounting platform. A drive gearbox for driving the rotating shafts to rotate is fixedly installed at the bottom of the first mounting platform.

[0008] Furthermore, a rotating roller is connected between the two sets of frame plates. The circumferential surface of the rotating roller is provided with several sets of conical teeth. Multiple pressure groove wheels are provided, and each set of conical teeth is correspondingly arranged between two adjacent pressure groove wheels.

[0009] Furthermore, the mudguard is an arc-shaped plate, with one concave side of the arc-shaped plate facing the rotary tillage blade.

[0010] Furthermore, the fertilization assembly includes two fixing plates, which are respectively fixedly connected to the frame plate and the first mounting platform. A fertilizer box is fixedly connected above the two fixing plates, and the bottom of the fertilizer box is conical.

[0011] Furthermore, a fertilizer roller is rotatably connected to the lower end of the fertilizer box, a rotating rod is rotatably connected to the upper part of the fertilizer box, several stirring rods are fixedly connected to the outer surface of the rotating rod, and several notches are provided on the surface of the fertilizer roller.

[0012] Furthermore, a reducer for driving the fertilizer roller to rotate is fixedly connected to one side of the fertilizer box. The end of the fertilizer roller away from the reducer passes through the side wall of the fertilizer box and is fixedly connected to a second transmission wheel. The end of the rotating rod away from the reducer passes through the side wall of the fertilizer box and is fixedly connected to a first transmission wheel. The first transmission wheel and the second transmission wheel are connected by belt drive.

[0013] Furthermore, the pressure wheel includes multiple sets of pressure wheels, with a spacing of 30 to 35 centimeters between adjacent sets of pressure wheels. Each set of pressure wheels includes two pressure wheels, with a spacing of centimeters between the two pressure wheels in the set, and the wheel width of the pressure wheels is 10 centimeters.

[0014] Compared with the prior art, the advantages of this utility model are as follows: This utility model integrates a fertilization component on the dry direct seeding machine. Rotary tillage blades, a furrowing wheel, a covering wheel, and a pressing roller are sequentially arranged from one side of the dry direct seeding machine to the other. A mud-blocking cover is provided above the rotary tillage blades, and sowing is carried out through the air-pumped direct seeding machine's collector. The covering wheel is located below the air-pumped direct seeding machine's collector for covering the soil, and a flattening process is performed after covering the soil. This perfectly solves the problems mentioned above, such as the current lack of fertilization function, the tendency of dry direct seeding machines to easily accumulate large amounts of soil during rotary tillage, affecting tillage efficiency, and causing great difficulties in subsequent cleaning. Furthermore, it improves work efficiency, provides a good soil environment for seed germination and growth, and promotes seed absorption of water and nutrients.

[0015] Furthermore, this invention utilizes a reducer to drive the fertilizer roller, allowing fertilizer to enter the notches on the roller's surface first. As the roller rotates, the fertilizer falls, performing the fertilization action. The rotation of the fertilizer roller drives a second transmission wheel, which in turn drives a first transmission wheel via a belt, thus rotating a rotating rod. This causes the stirring rod to agitate the fertilizer inside the fertilizer tank. The continuous agitation by the rotating rod prevents fertilizer from clumping inside the tank. Clumping affects fertilization effectiveness and increases the risk of equipment malfunction. Continuous agitation ensures the fertilizer maintains its fluidity and uniformity, reducing blockages. The reducer adjusts the rotation speed, precisely controlling the fertilizer roller's speed and thus accurately controlling the amount of fertilizer applied each time. This avoids the problem of applying too much or too little fertilizer, which can occur with traditional methods, ensuring a uniform and stable application rate. Through the coordination of the reducer and transmission system, the entire fertilization process can be automated, reducing manual intervention and improving efficiency. The fertilizer roller and stirring rod work together to ensure a continuous and smooth supply of fertilizer, enhancing operational efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the dry-seeding machine of this utility model;

[0017] Figure 2 This is a schematic diagram of the dry-seeding machine of this utility model from another perspective;

[0018] Figure 3 This is a cross-sectional structural diagram of the dry direct seeding machine of this utility model;

[0019] Figure 4 This is a schematic diagram of the fertilizer application component structure in this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection between the rotating rod and the fertilizer roller in this utility model;

[0021] Figure 6 This is a schematic diagram of the pressure groove wheel in another embodiment of the present invention.

[0022] The numbers on the map are:

[0023] 1. Frame plate; 2. First support rod; 3. First mounting platform; 4. Mud guard; 5. Rotary tiller blades; 6. Drive gearbox; 7. Fertilizer application assembly; 701. Fixing plate; 702. Fertilizer box; 703. Rotating rod; 704. Mixing rod; 705. First transmission wheel; 706. Fertilizer roller; 707. Second transmission wheel; 708. Reducer; 8. Fertilizer roller; 81. Pressure roller; 9. Soil covering wheel; 10. First support rod; 11. Second mounting platform; 12. Column; 13. Air-driven direct seeding machine collector; 14. Rotating roller; 15. Conical teeth; 16. Soil pressing roller. Detailed Implementation

[0024] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0025] Reference Figure 1-5 As shown, this invention focuses on a cold-region dry direct seeding machine for rice with fertilization function. The following will analyze its working principle in detail with reference to its specific structure.

[0026] Combined with appendix Figure 1 , 2 As shown in Figure 3, the basic structure of the dry direct seeding machine consists of two sets of parallel frame plates 1. A first support rod 102 is securely connected above the two sets of frame plates 1. This support rod acts as a crucial load-bearing beam, not only supporting other important components but also connecting them, which is vital for maintaining the stability of the equipment during operation. A first mounting platform 3 is securely connected to the center below the first support rod 102.

[0027] On the left and right sides of the first installation platform 3, fertilizer application components 7 are carefully installed. Each fertilizer application component 7 consists of two fixing plates 701, which are tightly connected to the frame plate 1 and the first installation platform 3, acting as a solid base to support the fertilizer tank 702. The bottom of the fertilizer tank 702 has a conical design, which helps the fertilizer to naturally converge, ensuring smooth and efficient downward delivery. Inside the fertilizer tank 702, the lower end is rotatably connected to a fertilizer roller 706 via a precision mechanical device, while the upper part is rotatably connected to a rotating rod 703. Multiple stirring rods 704 are evenly fixed to the outer surface of the rotating rod 703. During operation, the stirring rods 704 rotate continuously, effectively preventing fertilizer clumping and ensuring smooth fertilization. The surface of the fertilizer roller 706 is specially designed with multiple precise notches. When the fertilizer roller 706 rotates at a constant speed, the fertilizer falls quantitatively through these notches, achieving precise fertilization. A high-performance reducer 708 is connected to one side of the fertilizer bin 702, specifically for driving the fertilizer roller 706 to rotate. The end of the fertilizer roller 706 furthest from the reducer 708 passes through the side wall of the fertilizer bin 702 and connects to the second drive wheel 707. Similarly, the end of the rotating rod 703 furthest from the reducer 708 passes through the side wall and connects to the first drive wheel 705. The two drive wheels achieve stable power transmission via a belt. Thus, when the reducer 708 starts and drives the fertilizer roller 706 to rotate, the rotating rod 703 rotates synchronously via belt transmission, achieving coordinated mixing and fertilization. Its working principle lies in the fact that by precisely controlling the speed of the reducer 708, the rotation speed of the fertilizer roller 706 can be precisely controlled, thereby precisely adjusting the amount of fertilizer falling. Simultaneously, the rotation speed of the mixing rod 704 is also carefully designed to ensure that the fertilizer is fully mixed within the bin, preventing clumping and meeting the fertilization needs under different soil fertility conditions.

[0028] Between the two sets of frame plates 1, rotary tillers, furrow rollers 8, covering rollers 9, and compaction rollers 16 are sequentially installed along the working direction. These components are all controlled by a drive gearbox 6 and operate in coordination with each other. Specifically, the rotary tillers consist of two sets of rotating shafts rotatably mounted between the frame plates 1. At least three sets of rotary tiller blades 5 are firmly fixed to the outer surface of the rotating shafts and both sides of the first mounting platform 3. A powerful drive gearbox 6 is equipped at the bottom of the first mounting platform 3 to drive the rotating shafts to rotate at high speed. After the drive gearbox 6 starts, the rotating shafts drive the rotary tiller blades 5 to deeply till the soil, creating suitable soil conditions for subsequent sowing and fertilization operations. A mudguard 4 is installed above the rotary tillers. The mudguard 4 has a semi-circular arc-shaped plate structure with its concave surface facing the rotary tillers. It will not affect fertilization during rotary tillage operations, and the mudguard 4 can also effectively block splashed mud, keeping the equipment and surrounding environment clean and reducing the adhesion of mud to the equipment. This reduces the weight of the equipment due to soil adhesion, lowers the operating load, and improves operating efficiency. Furthermore, it reduces the manpower, material resources, and time costs required for subsequent cleaning, thus improving the maintainability of the equipment. The rotary tiller blades work by transmitting power from the drive gearbox 6 to the rotating shaft, which in turn drives the rotary tiller blades 5 to rotate at high speed. The sharp edges of the blades break up and loosen the soil, improving its structure and enhancing its aeration and water retention.

[0029] The furrowing roller 8 plays a crucial role in the entire operation process. Multiple sets of furrowing rollers 8 work together with the covering roller 9 to create neat and uniform furrows on the land. These furrows not only provide precise positioning for the seeds, ensuring uniform sowing, but also help the soil to gather into the furrows during the covering process.

[0030] Two second support rods are fixedly connected to the rear of the two sets of frame plates 1, and a second mounting platform 11 is connected to the middle position below the two support rods. At each of the four corners of the second mounting platform 11, a column 12 is securely connected, and an air-pumped direct seeding machine collector 13 is connected above the four columns 12. A soil-covering wheel 9 is located below the air-pumped direct seeding machine collector 13. The working principle of the air-pumped direct seeding machine collector 13 is based on aerodynamics. A stable pressure field is formed inside the collector by a high-speed airflow generated by a fan. Seeds are stored in the seed chamber of the collector, and under the action of the airflow, the seeds enter the seed delivery pipe from the seed chamber. A precise seed distribution device is installed inside the seed delivery pipe, which can accurately measure and distribute the seeds according to the preset sowing amount and sowing spacing. Simultaneously, by adjusting the fan speed, the pressure and flow rate of the airflow can be precisely controlled to accommodate seeds of different types, sizes, and weights. For example, for larger, heavier seeds, the fan speed needs to be increased to raise the airflow pressure and flow rate, ensuring the seeds can pass smoothly through the seed delivery pipe and accurately reach the predetermined sowing position. Conversely, for smaller, lighter seeds, the fan speed needs to be reduced, and airflow parameters precisely controlled to prevent the seeds from deviating from their intended position due to excessive airflow. Furthermore, the seed distributor is equipped with a sensor system that monitors the seed delivery status in real time, such as seed flow rate and blockage levels, and feeds the signals back to the control system. Based on the feedback signals, the control system automatically adjusts the fan speed or fine-tunes the seed distribution device to ensure the accuracy and stability of the sowing process.

[0031] To further improve the automated seeding control level of the dry-seeding machine, a radar speed measurement system was introduced. During the machine's movement, a radar speed measurement device installed at the front of the machine monitors its speed in real time. This radar speed measurement system utilizes the Doppler effect, transmitting and receiving electromagnetic waves to accurately measure the relative speed between the machine and its surrounding environment, and transmitting the speed data to the central control system in real time.

[0032] Based on radar speed feedback data, the central control system employs an automated seeding control scheme. The system pre-stores optimal seeding rates for different crops at varying seeding speeds. When the radar speed sensor detects a change in the seeder's speed, the central control system automatically adjusts the seed distribution device's operating parameters according to a preset algorithm. For example, if the seeder speed increases, the system increases the number of seeds released per unit area to ensure consistent seed quantity; conversely, if the speed decreases, the seed release rate decreases accordingly. This ensures uniform and appropriate seeding at different speeds. Simultaneously, based on radar speed data and preset seeding spacing standards, the central control system adjusts the seed distribution device's operating rhythm. For instance, when the seeder speed is high, the system appropriately shortens the time interval between seed releases to ensure proper seed spacing on the ground; when the speed is low, the time interval is extended to prevent overly dense seeding. Considering the specific seeding spacing requirements of different crops, operators can input crop type information into the control system interface, allowing the system to adjust the seeding spacing control strategy accordingly for precise seeding. Furthermore, by combining radar speed measurement data with a pre-set sowing area map, the central control system can plan the direct seeding machine's path in real time. When the direct seeding machine deviates from the preset path, the system corrects its direction by controlling the steering mechanism based on the speed information fed back by the radar and its current position. For example, if the direct seeding machine is moving too fast and deviating from the path, the system will increase the steering force to bring the machine back to the preset path as quickly as possible; if the speed is too slow, the system will adjust the direction more gently to ensure the accuracy of the trajectory, thereby guaranteeing full coverage and uniformity of the sowing area.

[0033] The structure of the covering wheel 9 includes a rotating roller 14 connected between two sets of frame plates 1. Multiple sets of conical teeth 15 are evenly distributed on the circumferential surface of the rotating roller 14, each set precisely corresponding to two adjacent furrowing wheels 8. When the rotating roller 14 rotates, the conical teeth 15 mesh with the furrowing wheels 8, driving the furrowing wheels 8 to work. After the furrowing wheels 8 complete the furrowing action, as the rotating roller 14 continues to rotate, the conical teeth 15 squeeze and lift the soil on both sides of the furrow towards the center, forming raised mounds of soil on both sides of the furrow. These mounds not only have the function of retaining water and fertilizer, reducing the loss of water and fertilizer in the furrow, but also protect the seeds, reducing the impact of external factors on the seeds and creating favorable conditions for subsequent covering operations. Its working principle is that the rotation of the rotating roller 14 transmits power to the furrowing wheels 8 through the conical teeth 15. The furrowing wheels 8, based on the position and shape of the conical teeth 15, press out furrows of specific shapes and spacing on the soil. Meanwhile, the conical teeth 15 further optimize the sowing environment by acting on the soil, ensuring that the seeds grow under suitable soil conditions. After the seeds are transported to the designated location through the seed delivery pipe, the covering roller 9 begins to work, covering the seeds with surrounding soil through rotation or translation, completing the covering operation. Finally, the compaction roller 16 compacts the soil using its own weight or externally applied pressure, ensuring close contact between the soil and the seeds, providing a favorable soil environment for seed germination and growth, and promoting the absorption of water and nutrients by the seeds.

[0034] Specifically, in conjunction with the appendix Figure 4 , 5 As shown, the fertilizer application component 7 includes two fixing plates 701, which are fixedly connected to the frame plate 1 and the first installation platform 3 respectively. A fertilizer box 702 is fixedly connected above the two fixing plates 701. The bottom of the fertilizer box 702 is conical. The conical design of the bottom of the fertilizer box 702 is conducive to the smooth discharge of fertilizer and further avoids the occurrence of blockage.

[0035] Specifically, a fertilizer roller 706 is rotatably connected to the lower end of the fertilizer box 702, and a rotating rod 703 is rotatably connected to the upper part of the fertilizer box 702. Several stirring rods 704 are fixedly connected to the outer surface of the rotating rod 703. Several notches are provided on the surface of the fertilizer roller 706. The notches on the surface of the fertilizer roller 706 can accurately control the amount of fertilizer applied and achieve uniform fertilization.

[0036] Specifically, a reducer 708 for driving the fertilizer roller 706 to rotate is fixedly connected to one side of the fertilizer box 702. The end of the fertilizer roller 706 away from the reducer 708 passes through the side wall of the fertilizer box 702 and is fixedly connected to a second transmission wheel 707. The end of the rotating rod 703 away from the reducer 708 passes through the side wall of the fertilizer box 702 and is fixedly connected to a first transmission wheel 705. The first transmission wheel 705 and the second transmission wheel 707 are connected by belt drive. The first transmission wheel 705 and the second transmission wheel 707 connected by belt drive realize the synchronous movement of the fertilizer roller 706 and the stirring rod 704, which not only completes the fertilization action, but also prevents the fertilizer from clumping.

[0037] Working principle: When this dry direct seeding machine applies fertilizer, the gearbox 6 first drives the rotating shaft to rotate, which in turn rotates the rotary tiller blades 5 to turn the soil. Then, the reducer 708 drives the fertilizer roller 706 to rotate. The fertilizer enters the notch on the surface of the fertilizer roller 706 first, and falls down as the fertilizer roller 706 rotates to perform the fertilization action. The rotation of the fertilizer roller 706 drives the second transmission wheel 707 to rotate, which in turn drives the first transmission wheel 705 to rotate under the drive of the belt, thereby driving the rotating rod 703 to rotate, so that... The stirring rod 704 stirs the fertilizer inside the fertilizer box 702 to prevent clumping. The device moves as it is driven by an external power source. At this time, the pressing roller 8 presses out furrows for sowing. The air-driven direct seeding machine collector 13 places the seeds in the furrows, and then the covering roller 9 covers the seeds with soil. Finally, the pressing roller 16 compacts the soil by its own weight or external pressure, so that the soil and seeds are in close contact, providing a good soil environment for seed germination and growth, and promoting the absorption of water and nutrients by the seeds.

[0038] In addition, such as Figure 6As shown, this utility model further proposes a furrowing wheel 8 capable of pressing out double rows of large ridges. The difference between this furrowing wheel 8 and the conventional furrowing wheel described above is that the furrowing wheel 8 in this embodiment can press out two ridges. The furrowing wheel 8 includes multiple sets of pressing wheels, with a spacing of 30 to 35 cm between adjacent sets of pressing wheels 81. Each set of pressing wheels 81 includes two pressing wheels 81, with a spacing of 15 cm between the two pressing wheels within the set, and the wheel width is 10 cm. This allows for the pressing out of the set a double-row planting strip with a planting width of 10 cm and a spacing of 15 cm, and adjacent sets of planting strips forming a spacing of 3 cm. Traditional furrow rollers can only create one furrow at a time on wide ridges ranging from 0 to 35 cm. However, this new type of furrow roller can create two rows on a single operation, completing twice the furrow compaction work in the same amount of time. This reduces the number of times and the time spent by agricultural machinery in the field, improving overall sowing efficiency and accelerating the progress of busy farming seasons such as spring plowing. The wide-ridge, double-row planting pattern allows for a more rational distribution of crops. With adjacent seed strips spaced 30 to 35 cm apart, ventilation between rows is better compared to conventional narrow-ridge planting, promoting gas exchange and photosynthesis. Simultaneously, ample sunlight ensures all parts of the crop receive sufficient sunlight, improving light energy utilization and enhancing photosynthetic efficiency, resulting in stronger crop growth. The wide ridge and double-row layout provides convenient operational space for field management. When performing operations such as fertilization, weeding, spraying, and irrigation, it is easier for agricultural machinery or personnel to move between the ridges, reducing the risk of crop damage and improving the efficiency and quality of management operations while minimizing interference with crop growth. Furthermore, it can effectively improve land utilization, fully utilize the land's production potential, reduce water evaporation, improve soil water retention capacity, enhance crop drought resistance, and when there is more rainfall, the furrows can play a better role in drainage, avoiding water accumulation in the field and reducing the impact of flooding on crops.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cold-region dry direct seeding machine for rice with fertilization function, characterized in that: The device includes two sets of parallel frame plates. A first support rod is fixedly connected above the two sets of frame plates. A first installation platform is fixedly connected at the middle position below the first support rod. Fertilizer components are provided on both the left and right sides above the first installation platform. Rotary tillage blades, ditching wheels, covering wheels, and soil pressing rollers are arranged sequentially from one side to the other between the two sets of frame plates, and a mud guard is provided above the rotary tillage blades. Two second support rods are fixedly connected to the rear side between the two sets of frame plates. A second installation platform is fixedly connected at the middle position below the two second support rods. Columns are fixedly connected at the four corners above the second installation platform. Air-driven direct seeding machine collectors are fixedly connected above the four columns. The covering wheel is located below the air-driven direct seeding machine collector.

2. The cold-region dry direct seeding machine for rice with fertilization function according to claim 1, characterized in that: The rotary tillage blades include two sets of rotating shafts rotatably disposed between the frame plates. At least three sets of rotary tillage blades are fixedly connected to the outer surface of the rotating shafts and the left and right sides of the first mounting platform. A drive gearbox for driving the rotating shafts to rotate is fixedly installed at the bottom of the first mounting platform.

3. A cold-region dry direct seeding machine for rice with fertilization function according to claim 1, characterized in that: A rotating roller is connected between the two sets of frame plates. The circumferential surface of the rotating roller is provided with several sets of conical teeth. There are multiple pressing wheels, and each set of conical teeth is correspondingly arranged between two adjacent pressing wheels.

4. A cold-region dry direct seeding machine with fertilization function according to claim 1, characterized in that: The mudguard is an arc-shaped plate, and the concave side of the arc-shaped plate is opposite to the rotary tillage blade.

5. A cold-region dry direct seeding machine for rice with fertilization function according to any one of claims 1-4, characterized in that: The fertilization assembly includes two fixing plates, which are respectively fixedly connected to the frame plate and the first mounting platform. A fertilizer box is fixedly connected above the two fixing plates, and the bottom of the fertilizer box is conical.

6. A cold-region dry direct seeding machine for rice with fertilization function according to claim 5, characterized in that: A fertilizer roller is rotatably connected to the lower end of the fertilizer box, and a rotating rod is rotatably connected to the upper part of the fertilizer box. Several stirring rods are fixedly connected to the outer surface of the rotating rod, and several notches are provided on the surface of the fertilizer roller.

7. A cold-region dry direct seeding machine for rice with fertilization function according to claim 6, characterized in that: A speed reducer for driving the fertilizer roller to rotate is fixedly connected to one side of the fertilizer box. The end of the fertilizer roller away from the speed reducer passes through the side wall of the fertilizer box and is fixedly connected to a second transmission wheel. The end of the rotating rod away from the speed reducer passes through the side wall of the fertilizer box and is fixedly connected to a first transmission wheel. The first transmission wheel and the second transmission wheel are connected by belt drive.

8. A cold-region dry direct seeding machine for rice with fertilization function according to claim 1, characterized in that: The pressure wheel includes multiple sets of pressure wheels, with a spacing of 30 to 35 centimeters between adjacent sets of pressure wheels. Each set of pressure wheels includes two pressure wheels, with a spacing of centimeters between the two pressure wheels in the set, and the width of the pressure wheels is 10 centimeters.

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