Fertilizing device for wheat planting

Abstract

The invention belongs to the technical field of fertilization for wheat planting, and particularly relates to a fertilization device for wheat planting, which comprises a hopper truck, a traction hanger is fixedly connected to the side wall of one side of the hopper truck, a discharge cylinder is coaxially and fixedly communicated to the side wall of the hopper truck, and a beating roller is rotatably connected to the inner wall of the hopper truck. A conveying roller is rotationally connected to the inner wall of the hopper truck, and the other end of the conveying roller is coaxially and rotationally connected with one end of the inner wall of the discharging cylinder; fertilizer is conveyed through the spiral blades, adhered organic fertilizer is driven to be scraped during conveying, the situation that the organic fertilizer is adhered and cannot be discharged is avoided, the fertilizer is graded through the fixed screening disc and the rotary screening disc which are stacked up and down, are the same in structure and do relative rotation motion, and far-near throwing is achieved through the first throwing disc and the second throwing disc; and the fixed screening disc and the rotary screening disc are matched with each other, so that uniform throwing of organic fertilizers with different sizes is realized.

Description

Technical Field

[0001] This invention belongs to the field of fertilization technology for wheat cultivation, specifically referring to a fertilization device for wheat cultivation. Background Technology

[0002] In wheat cultivation, the application of organic fertilizer is an important agronomic measure to improve soil structure and provide sustained nutrients. However, organic fertilizers, especially livestock manure, are generally characterized by high moisture content, strong viscosity, easy clumping, and frequent presence of fibrous impurities, which poses a serious challenge to mechanized and uniform fertilization.

[0003] Current fertilization devices are prone to causing sticky, wet organic fertilizer to adhere to the inner walls of the hopper and the surfaces of the conveying components, forming a stubborn layer. This not only wastes fertilizer but also significantly reduces the effective volume of the hopper, hindering the smooth flow of fertilizer and even causing conveying interruptions. Clumped or highly viscous organic fertilizer is easily compacted and blocked during output. To achieve preliminary fertilizer grading or remove large impurities, some devices are equipped with screens, but wet, sticky fertilizer and the fibers mixed in it quickly clog the screen holes. Existing spreading devices are ineffective at breaking up easily clumped organic fertilizer, resulting in mostly unevenly distributed clumps after being thrown out, affecting the balanced absorption by crops. Summary of the Invention

[0004] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a fertilization device for wheat cultivation. This application utilizes a coordinated drive system composed of a conveyor motor and a bidirectional motor as a unified power source. Forced conveying and adaptive unblocking are achieved through a transmission belt linking the conveyor rollers and striking rollers. During rotation, the device continuously scrapes the inner wall of the hopper, the conveyor rollers, and the spiral blades, solving the technical problem of easy adhesion of organic fertilizer in existing technologies. The spiral blades with gradually decreasing pitch continuously enhance the compression and shearing of the fertilizer during conveying, solving the technical problem of easy material blockage in existing technologies. The fixed and rotating screening discs, stacked vertically and rotating relative to each other, shear and peel away clumps adhering between the screens, solving the technical problem of easy clogging of the screens by organic fertilizer in existing technologies. The arc-shaped spraying plate made of spring steel plate utilizes the elastic deformation and rebound generated when impacting the fertilizer for secondary acceleration and gentle crushing. Furthermore, the different rotation speeds of the two spraying discs achieve different distances for projecting coarse and fine materials, solving the technical problem of uneven distribution of organic fertilizer in existing technologies.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present solution proposes a fertilization device for wheat planting, including a hopper cart, a traction hook fixedly connected to one side wall of the hopper cart, a discharge cylinder coaxially fixedly connected to the side wall of the hopper cart, a striking roller rotatably connected to the inner wall of the hopper cart, a conveying roller rotatably connected to the inner wall of the hopper cart, the other end of the conveying roller being coaxially rotatably connected to one end of the inner wall of the discharge cylinder, the striking roller being drivenly connected to the conveying roller, a discharge port being opened on the discharge cylinder, and a screening component and a spreading component fixedly connected to one side of the bottom wall of the hopper cart, the screening component being located below the discharge port, and the spreading component being drivenly connected to the screening component.

[0006] Preferably, the screening assembly includes a fixed screening disc fixedly connected to the bottom wall of the hopper car, a guide cone coaxially fixedly connected to the top of the fixed screening disc, a rotating column coaxially rotatably connected to the bottom of the guide cone, and a rotating screening disc coaxially fixedly connected to the outer circumferential wall of the rotating column. The fixed screening disc and the rotating screening disc have the same structure.

[0007] Preferably, the spraying assembly includes a first spraying disc coaxially fixedly connected to the bottom end of the rotating column, and a second spraying disc coaxially driven connected to the bottom end of the first spraying disc, wherein the cross-sections of the first spraying disc and the second spraying disc are concave.

[0008] Preferably, the fixed screening disc includes a filter cone mesh coaxially and fixedly connected to the circumferential wall of the guide cone, and the bottom end of the filter cone mesh is coaxially and fixedly connected to the guide cone disc, and the filter cone mesh of the rotating screening disc is fixedly connected to the circumferential wall of the rotating column.

[0009] Preferably, a first spraying plate is fixedly connected in a ring shape to the outer edge of the top wall of the first spraying disc, a bidirectional motor is fixedly connected to the bottom wall of the hopper car, one output end of the bidirectional motor is fixedly connected to the first spraying disc coaxially, a reducer is fixedly connected to the other output end of the bidirectional motor coaxially, a second spraying disc is fixedly connected to the output end of the reducer coaxially, and a second spraying plate is fixedly connected in a ring shape to the outer edge of the top wall of the second spraying disc.

[0010] Preferably, the outer circumferential wall of the striking roller is fixedly connected with striking rings in a linear array, the outer circumferential wall of the striking rings is fixedly connected with striking plates in a ring array, and the other end of the striking plates is hinged to a striking plate.

[0011] Preferably, a spiral blade is wound and fixedly connected to the outer circumferential wall of the conveying roller, a driving pulley and a driven pulley are rotatably connected to the side wall of the hopper car, the driving pulley is coaxially and fixedly connected to the conveying roller, the driven pulley is coaxially and fixedly connected to the striking roller, a transmission belt is sleeved on the driving pulley and the driven pulley, a conveying motor is fixedly connected to the side wall of the hopper car, and the output end of the conveying motor is coaxially and fixedly connected to the driving pulley.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows: 1. This application utilizes spiral blades with a pitch that gradually decreases along the conveying direction to convey fertilizer. While conveying, the blades scrape and rub the sticky organic fertilizer to prevent it from sticking together and being unable to be discharged. The application uses fixed and rotating screening discs that are stacked on top of each other, have the same structure, and rotate relative to each other to classify the fertilizer. The application uses a first and a second spraying disc to achieve both near and far spraying. The application also works in conjunction with the fixed and rotating screening discs to achieve uniform spraying of organic fertilizer of different sizes. 2. This application utilizes spiral blades with a pitch that gradually decreases along the conveying direction to convey fertilizer. As the organic fertilizer moves forward, it is subjected to continuously enhanced axial compression and shearing forces, which effectively break it up and force it to the discharge port, thus avoiding clumping or blockage of high-viscosity organic fertilizer at the end of the conveying process. 3. This application utilizes a striking plate and a rubber striking plate hinged to the striking roller to continuously scrape the inner wall of the hopper car, the conveying roller, and the spiral blades during rotation. When encountering resistance, the steel plate bends and stores energy to ensure adhesion. After detaching, it quickly resets and generates a spring-like vibration, thus preventing wet organic fertilizer from easily sticking to the hopper car wall and the surface of the spiral blades, which would cause poor material discharge. 4. This application utilizes a fixed screening disc and a rotating screening disc stacked on top of each other, with identical structures and relative rotational motion, to classify organic fertilizer. The rotation of the rotating screening disc can shear and peel off the fertilizer clumps that are stuck between the two layers of screens, thus avoiding the screens from being easily clogged when screening organic fertilizer. 5. This application utilizes an arc-shaped spraying plate made of spring steel plate to drive the first and second spraying discs, which carry fertilizers of different sizes, to rotate at different speeds. When the spraying plate impacts the fertilizer, it undergoes elastic deformation and rebound, achieving secondary acceleration and gentle crushing. It also achieves different spraying ranges for different sizes of organic fertilizers, avoiding fertilizer clumping. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a schematic diagram of the overall structure of a fertilization device for wheat planting proposed in this invention; Figure 2 This is a schematic diagram of the overall structure of a fertilization device for wheat cultivation proposed in this invention from another perspective. Figure 3 This is a schematic cross-sectional view of the overall structure of a fertilization device for wheat cultivation proposed in this invention. Figure 4 This is a schematic cross-sectional view of the overall structure of a fertilization device for wheat cultivation proposed in this invention from another perspective. Figure 5 This is a schematic cross-sectional view of the connection between the screening component and the spreading component of a fertilization device for wheat planting proposed in this invention; Figure 6 This is a schematic cross-sectional view of the discharge cylinder connection of a fertilizer application device for wheat planting proposed in this invention; Figure 7 This is a schematic diagram of the connection structure of the first spraying disc of a fertilizer application device for wheat planting proposed in this invention; Figure 8 This is a schematic diagram of the connection structure of the second spraying disc of a fertilizer application device for wheat planting proposed in this invention; Figure 9 This is a schematic diagram of the connecting structure of the beating roller in a fertilizer application device for wheat planting proposed in this invention.

[0015] In the attached diagram: 1. Hopper cart, 2. Traction hook, 3. Beating roller, 4. Conveying roller, 5. Discharge cylinder, 6. Screening assembly, 7. Spraying assembly, 31. Beating ring, 32. Beating disc, 33. Beating plate, 41. Spiral blade, 42. Conveyor motor, 43. Drive pulley, 44. Driven pulley, 45. Transmission belt, 51. Discharge port, 61. Connecting column, 62. Fixed screening disc, 63. Rotating screening disc, 64. Guide cone, 65. Rotating column, 621. Filter cone, 622. Guide cone disc, 71. First spraying disc, 72. Second spraying disc, 73. Bidirectional motor, 74. Reducer, 712. First spraying plate, 722. Second spraying plate.

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Example 1, as Figures 1-9As shown, the proposed fertilization device for wheat planting includes a hopper 1 with a V-shaped cross-section. A traction hook 2 is fixedly connected to one side wall of the hopper 1, and a discharge cylinder 5 is coaxially fixedly connected to the side wall of the hopper 1. A striking roller 3 and a conveying roller 4 are rotatably connected to the inner wall of the hopper 1. The other end of the conveying roller 4 is coaxially rotatably connected to one end of the inner wall of the discharge cylinder 5. The conveying roller 4 is located near the bottom of the hopper 1, and the striking roller 3 is located above the conveying roller 4. The striking roller 3 and the conveying roller 4 are connected in a driving manner. A discharge port 51 is provided on the discharge cylinder 5. A screening component 6 and a spreading component 7 are fixedly connected to one side of the bottom wall of the hopper 1. The screening component 6 is located below the discharge port 51, and the spreading component 7 is connected in a driving manner to the screening component 6. The screening assembly 6 includes a fixed screening disc 62 fixedly connected to the bottom wall of the hopper car 1. A guide cone 64 is coaxially fixedly connected to the top of the fixed screening disc 62. A rotating column 65 is coaxially rotatably connected to the bottom of the guide cone 64. A rotating screening disc 63 is coaxially fixedly connected to the outer circumferential wall of the rotating column 65. The rotating screening disc 63 is located below the fixed screening disc 62. The fixed screening disc 62 and the rotating screening disc 63 have the same structure. The spraying assembly 7 includes a first spraying disk 71 coaxially fixedly connected to the bottom end of the rotating column 65, and a second spraying disk 72 coaxially driven connected to the bottom end of the first spraying disk 71. The cross-sections of the first spraying disk 71 and the second spraying disk 72 are concave.

[0019] like Figures 1-5 As shown, the fixed screening disc 62 includes a filter cone mesh 621 coaxially and fixedly connected to the circumferential wall of the guide cone 64. The bottom end of the filter cone mesh 621 is coaxially and fixedly connected to the guide cone disk 622. The filter cone mesh 621 of the rotating screening disc 63 is fixedly connected to the circumferential wall of the rotating column 65. The organic fertilizer is discharged through the discharge port 51 in the discharge cylinder 5. The organic fertilizer is diverted by the guide cone 64 and screened by the filter cone mesh 621 in the fixed screening disc 62. Larger organic fertilizer particles cannot pass through the filter cone mesh 621, but slide directly down along the guide cone disk 622. Smaller organic fertilizer particles pass through the filter cone mesh 621 and enter between the fixed screening disc 62 and the rotating screening disc 63. When the rotating screening disc 63 rotates, it can cooperate with the fixed screening disc 62 to cut the organic fertilizer and also cut the fibers in the fertilizer to prevent the organic fertilizer from sticking together.

[0020] Unscreened organic fertilizer is guided by the guide cone 622 on the fixed screening plate 62. The organic fertilizer that falls onto the filter cone 621 in the rotating screening plate 63 rotates with the rotating screening plate 63, cutting off the organic fertilizer that is stuck between the fixed screening plate 62 and the rotating screening plate 63. It can also cut off the fibers in the fertilizer and prevent the organic fertilizer from sticking together.

[0021] like Figure 1, Figure 3 , Figure 5 and Figures 7-8 As shown, the first spraying disc 71 is located below the filter cone 621. Organic fertilizer filtered by the filter cone 621 falls onto the first spraying disc 71. A first spraying plate 712 is fixedly connected in a ring along the outer edge of the top wall of the first spraying disc 71. A bidirectional motor 73 is fixedly connected to the bottom wall of the hopper 1. One output end of the bidirectional motor 73 is coaxially fixedly connected to the first spraying disc 71, and the other output end of the bidirectional motor 73 is coaxially fixedly connected to a reducer 74. The output end of the reducer 74 is coaxially fixedly connected to a second spraying disc 72. The diameter of the second spraying disc 72 is larger than that of the first disc 71. The second disc 72 is located below the guide cone 622. Unscreened organic fertilizer falls onto the second spraying disc 71 through the guide cone 622 on the fixed screening disc 62. 2. On the top wall of the second spraying disc 72, a second spraying plate 722 is fixedly connected in a ring shape to the outer edge of the top wall. Both the first spraying plate 712 and the second spraying plate 722 are made of spring steel, and in their initial state, they are both bent into an arc shape along the direction of rotation. The first spraying disc 71 drives the first spraying plate 712 to rotate, accelerating the ejection of organic fertilizer in the first spraying disc 71. The arc-shaped side of the first spraying plate 712 contacts the organic fertilizer. The impact force makes the arc of the first spraying plate 712 smaller. After the first spraying plate 712 reaches its maximum bending, it rebounds rapidly and restores its original arc shape. In this process, the elastic potential energy stored in the first spraying plate 712 is superimposed on the kinetic energy of the rotation of the first spraying disc 71, which is converted into a secondary acceleration of the fertilizer, which is ejected at high speed and smoothly along the arc tangent direction, while also breaking up the organic fertilizer.

[0022] like Figures 1-4 and Figure 9 As shown, the outer circumferential wall of the striking roller 3 is fixedly connected with striking rings 31 in a linear array. The outer circumferential wall of the striking rings 31 is fixedly connected with striking plates 32 in a ring array. The striking plates 32 are made of spring steel and are initially bent into an arc shape along the direction of rotation. The other end of the striking plates 32 is hinged to a striking plate 33, which is made of rubber. When the striking roller 3 rotates, the striking rings 31 drive the striking plates 32 and striking plates 33 to rotate. The striking plates 33 contact the inner wall of the hopper car 1 and scrape off the organic fertilizer adhering to the inner wall of the hopper car 1. When the striking plates 33 contact the hopper car 1, the striking rings 31 and striking plates 33 compress the striking plates 32, which can continuously adhere to the inner wall of the hopper car 1 and the conveying roller 4.

[0023] like Figures 1-4 and Figure 6As shown, a spiral blade 41 is wound and fixedly connected to the outer circumferential wall of the conveying roller 4. The pitch of the spiral blade 41 gradually decreases along the conveying direction of the organic fertilizer. As the organic fertilizer is conveyed forward, it is subjected to increasingly tight compression due to the decrease in pitch, which forcibly pushes out the most viscous organic fertilizer and can also crush the lumpy organic fertilizer. The side wall of the hopper car 1 is rotatably connected to a drive pulley 43 and a driven pulley 44. The drive pulley 43 is coaxially fixedly connected to the conveying roller 4, and the driven pulley 44 is coaxially fixedly connected to the striking roller 3. A transmission belt 45 is sleeved on the drive pulley 43 and the driven pulley 44. A conveying motor 42 is fixedly connected to the side wall of the hopper car 1, and the output end of the conveying motor 42 is coaxially fixedly connected to the drive pulley 43.

[0024] Move the device to a suitable position, and the hopper car 1 is towed to an external agricultural vehicle via the towing hook 2. The organic fertilizer is poured into the hopper car 1, the conveyor motor 42 and the bidirectional motor 73 are started, the conveyor motor 42 drives the drive pulley 43 and the conveyor roller 4 to rotate, the drive pulley 43 drives the driven pulley 44 to rotate via the transmission belt 45, the driven pulley 44 drives the beater roller 3 to rotate, and at the same time the agricultural vehicle drives the hopper car 1 to move. When the conveying roller 4 rotates, it drives the spiral blade 41 to rotate. The spiral blade 41 drives the organic fertilizer in the hopper car 1 to be transported into the discharge cylinder 5. As the organic fertilizer is transported forward, it is subjected to increasingly tighter compression due to the decrease in the pitch of the spiral blade 41, which forcibly pushes out the most viscous organic fertilizer. The spiral blade 41 and the inner wall of the hopper car 1 work together to crush the blocky organic fertilizer, and the organic fertilizer is discharged through the discharge port 51. When the striking roller 3 rotates, it drives the striking ring 31 to rotate. The striking ring 31 drives the striking plate 33 to rotate through the striking plate 32. The striking plate 33 contacts the inner wall of the hopper car 1. The striking ring 31 and the striking plate 33 compress the striking plate 32. The striking plate 33 scrapes off the organic fertilizer adhering to the inner wall of the hopper car 1. When the striking plate 33 is no longer in contact with the inner wall of the hopper car 1, the striking plate 32 returns to its original position. When the striking plate 33 contacts the conveying roller 4 or the spiral blade 41, the striking ring 31 and the striking plate 33 compress the striking plate 32. The striking plate 33 scrapes off the organic fertilizer adhering to the conveying roller 4 and the spiral blade 41. When the striking plate 33 stops contacting the conveying roller 4 and the spiral blade 41, the striking plate 32 returns to its original position. When the organic fertilizer is discharged through the discharge port 51, the organic fertilizer falls onto the guide cone 64 and onto the filter cone 621 on the fixed screening plate 62 for screening. The screened organic fertilizer falls onto the filter cone 621 on the rotating screening plate 63 for screening. The bidirectional motor 73 drives the first spraying plate 71, the rotating column 65 and the rotating screening plate 63 to rotate, cutting off the organic fertilizer between the fixed screening plate 62 and the rotating screening plate 63. It can also cut off the fibers in the fertilizer to prevent the organic fertilizer from sticking together. The screened organic fertilizer falls onto the first spraying plate 71. The unscreened organic fertilizer slides onto the second spraying plate 72 through the guide cone 622 on the fixed screening plate 62 and the rotating screening plate 63. When one output of the bidirectional motor 73 directly drives the first spraying disc 71, the rotating column 65, and the rotating screening disc 63 to rotate, its other output drives the second spraying disc 72 to rotate via the reducer 74. The first spraying disc 71 accelerates the screening of organic fertilizer and throws it out. The organic fertilizer contacts the first spraying plate 712, which bends and rebounds upon impact, generating a shaking motion that gives the material an initial velocity. It also gently breaks up any clumps of organic fertilizer and further disperses the material. The second spraying disc 72... Unscreened organic fertilizer is accelerated and thrown out. The organic fertilizer comes into contact with the second spray plate 722. The second spray plate 722 bends and bounces when it hits the material. Since the rotation speed of the second spray plate 72 is lower than that of the first spray plate 71, the second spray plate 722 gives these heavy, large particles a lower tangential velocity. This results in them being thrown out over a shorter range. The landing point of these large particles just covers the nearby area that the first spray plate 712 cannot effectively cover because the fine material is too light. After the material is finished being thrown out, the conveyor motor 42 and the bidirectional motor 73 stop.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fertilization device for wheat planting, comprising a hopper cart (1), the hopper cart (1) having a V-shaped cross-section, and a traction hook (2) fixedly connected to one side wall of the hopper cart (1), characterized in that: The hopper car (1) has a discharge cylinder (5) coaxially fixedly connected to its side wall. The inner wall of the hopper car (1) is rotatably connected to a striking roller (3). The inner wall of the hopper car (1) is rotatably connected to a conveying roller (4). The other end of the conveying roller (4) is coaxially rotatably connected to one end of the inner wall of the discharge cylinder (5). The conveying roller (4) is located near the bottom of the hopper car (1). The striking roller (3) is located above the conveying roller (4). The striking roller (3) is connected to the conveying roller (4) in a driving manner. The discharge cylinder (5) has a discharge port (51). The bottom wall of the hopper car (1) is fixedly connected to a screening component (6) and a scattering component (7). The screening component (6) is located below the discharge port (51). The scattering component (7) is connected to the screening component (6) in a driving manner. The screening component (6) includes a fixed screening disc (62) fixedly connected to the bottom wall of the hopper car (1). A guide cone (64) is coaxially fixedly connected to the top of the fixed screening disc (62). A rotating column (65) is coaxially rotatably connected to the bottom of the guide cone (64). A rotating screening disc (63) is coaxially fixedly connected to the outer circumferential wall of the rotating column (65). The fixed screening disc (62) and the rotating screening disc (63) have the same structure. The spraying assembly (7) includes a first spraying disc (71) coaxially fixedly connected to the bottom end of the rotating column (65), and a second spraying disc (72) coaxially driven connected to the bottom end of the first spraying disc (71). The first spraying disc (71) and the second spraying disc (72) are arranged in a concave cross-section.

2. The fertilization device for wheat planting according to claim 1, characterized in that: The fixed screening disc (62) includes a filter cone mesh (621) coaxially and fixedly connected to the circumferential wall of the guide cone (64). The bottom end of the filter cone mesh (621) is coaxially and fixedly connected to the guide cone (64) disc. The filter cone mesh (621) of the rotating screening disc (63) is fixedly connected to the circumferential wall of the rotating column (65).

3. The fertilization device for wheat planting according to claim 2, characterized in that: The first spraying disc (71) is located below the filter cone (621). Organic fertilizer filtered by the filter cone (621) falls onto the first spraying disc (71). The outer edge of the top wall of the first spraying disc (71) is fixedly connected to the first spraying plate (712) in a ring. The bottom end of the first spraying disc (71) is connected to the second spraying disc (72). The outer edge of the top wall of the second spraying disc (72) is fixedly connected to the second spraying plate (722) in a ring. Organic fertilizer that has not been screened falls onto the second spraying disc (72). Both the first spraying plate (712) and the second spraying plate (722) are made of spring steel, and their initial state is bent into an arc shape along the direction of rotation.

4. A fertilization device for wheat planting according to claim 3, characterized in that: The outer circumferential wall of the striking roller (3) is fixedly connected with striking rings (31) in a linear array. The outer circumferential wall of the striking rings (31) is fixedly connected with striking plates (32) in a ring array. The striking plates (32) are initially bent into an arc shape along the rotation direction. The other end of the striking plates (32) is hinged to a striking plate (33). When the striking roller (3) rotates, the striking rings (31) and the striking plate (33) compress the striking plates (32). The striking plate (33) can continuously adhere to the inner wall of the hopper car (1) and the conveying roller (4) to remove the stuck organic fertilizer.

5. A fertilization device for wheat planting according to claim 4, characterized in that: The outer circumferential wall of the conveying roller (4) is wound with a spiral blade (41). The pitch of the spiral blade (41) gradually decreases along the conveying direction of the organic fertilizer. As the organic fertilizer is conveyed forward, it is subjected to increasingly tight compression due to the decrease in the pitch of the spiral blade (41), which forcibly pushes out the most viscous organic fertilizer and can also crush the blocky organic fertilizer.

6. A fertilization device for wheat planting according to claim 5, characterized in that: The side wall of the hopper car (1) is rotatably connected to a drive pulley (43) and a driven pulley (44). The drive pulley (43) is coaxially fixedly connected to the conveying roller (4), and the driven pulley (44) is coaxially fixedly connected to the striking roller (3). A transmission belt (45) is sleeved on the drive pulley (43) and the driven pulley (44). The side wall of the hopper car (1) is fixedly connected to a conveying motor (42), and the output end of the conveying motor (42) is coaxially fixedly connected to the drive pulley (43).

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