A fertilizer application device for agricultural machinery

Abstract

This utility model provides an agricultural machinery fertilization device, belonging to the field of agricultural machinery technology. The agricultural machinery fertilization device includes a fertilizer box and a feeding bin installed at the bottom of the fertilizer box. Its key feature is that a connecting component is provided at the connection between the fertilizer box and the feeding bin, and a protective cover is bolted to the top. A stirring component is fixedly installed at the top of the protective cover. The crushing end of the stirring component is placed inside the fertilizer box and the feeding bin, and a dredging component is welded to the bottom of the crushing end. The outer wall of the dredging component fits snugly against the inner wall of the feeding port of the feeding bin. A bin wall cleaning component is integrally formed on the side wall of the stirring component, and the outer end of the bin wall cleaning component is tightly fitted against the inner wall of the fertilizer box and the feeding bin. Through the coordinated operation of the connecting component, the protective cover, the stirring component, the dredging component, and the bin wall cleaning component, the problems of easy clogging of the feeding port and electronic valve during fertilization in existing agricultural machinery fertilization devices, the difficulty in disassembling the fertilizer box and the feeding bin, and the lack of protective measures for the top of the fertilizer box can be solved.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and more specifically, to an agricultural machinery fertilization device. Background Technology

[0002] As modern agriculture develops towards large-scale, intensive, and intelligent operations, precision fertilization technology has become a key link in improving agricultural production efficiency and reducing resource consumption. Traditional fertilization methods rely on manual or mechanical spreading, resulting in uneven fertilizer distribution and low utilization rates. Electronically controlled fertilization devices, integrated with intelligent agricultural systems, can dynamically adjust fertilizer application rates and precisely control the application trajectory, significantly improving fertilization efficiency and crop yield. However, existing agricultural machinery fertilization devices still face a key technical bottleneck in practical applications: fertilizer, after prolonged standing in the storage tank, can clump due to moisture or temperature changes. These clumps can easily narrow or completely block the discharge port and electronic valve, preventing proper fertilizer discharge. Furthermore, in existing designs, the connection structure between the fertilizer tank and the discharge compartment is often poorly designed, making disassembly difficult and increasing the difficulty of daily maintenance and cleaning. Additionally, the top of the fertilizer tank lacks necessary protective measures. Utility Model Content

[0003] To overcome the above deficiencies, this application provides an agricultural machinery fertilization device to solve the problems mentioned in the background art, such as the easy blockage of the discharge port and electronic valve during fertilization, the difficulty in disassembling the fertilizer box and the discharge hopper, and the lack of necessary protective measures for the top of the fertilizer box.

[0004] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] An agricultural machinery fertilization device includes a fertilizer bin and a feeding bin installed at the bottom of the fertilizer bin. The device is characterized by: a connecting component at the connection between the fertilizer bin and the feeding bin, with a protective cover bolted to the top; a stirring component fixed to the top of the protective cover; the crushing end of the stirring component placed inside the fertilizer bin and the feeding bin; a clearing component welded to the bottom of the crushing end; the outer wall of the clearing component fitting against the inner wall of the feeding port of the feeding bin; and a bin wall cleaning component integrally formed on the side wall of the stirring component, with the outer end of the bin wall cleaning component tightly fitted against the inner wall of the fertilizer bin and the feeding bin.

[0006] Furthermore, the connecting assembly includes four connecting plates, four through holes, four hexagonal bolts, four threaded holes, a rubber ring, four pins, and four pin holes. The four connecting plates are integrally formed on the four sides of the outer wall of the fertilizer box, and the four pins are integrally formed on the four corners of the bottom. The four connecting plates are provided with four through holes on their surfaces. The feed hopper is provided with four threaded holes and four pin holes on its surface. The rubber ring is placed on the surface of the feed hopper. The bottom ends of the four pins pass through the surface of the rubber ring and are inserted into the four pin holes. The bottom ends of the four hexagonal bolts are threadedly connected to the four threaded holes through the four through holes.

[0007] Furthermore, the protective cover has a built-in support platform on its surface, and its four corners are bolted to the surface of the fertilizer box. The surface of the support platform is bolted to the fixed end of the mixing assembly.

[0008] Furthermore, the mixing assembly includes a drive motor, a coupling, a shaft, spiral blades, and several pulverizing rods. The drive motor is bolted to the surface of the support platform, and its output end passes through a through hole on the surface of the support platform and is fixedly connected to the top of the shaft through the coupling. The spiral blades, several pulverizing rods, and the bin wall cleaning assembly are welded to the outer wall of the shaft, and the bottom end extends to the bottom of the discharge bin and is welded with the unblocking assembly. The spiral blades are located inside the fertilizer tank, and the several pulverizing rods are located inside the discharge bin.

[0009] Furthermore, the unblocking assembly includes a conveying head and a conveying blade. The top end of the conveying head is welded to the bottom end of the shaft, the inner wall of the conveying blade is welded to the outer wall of the conveying head, and the outer wall is in contact with the inner wall of the discharge port of the discharge hopper.

[0010] Furthermore, the bin wall cleaning assembly includes several connecting rods, two scraper blades, and two inclined blades. One end of each of the connecting rods is welded to both sides of the outer wall of the shaft at equal intervals, and the other end is welded to the inner sidewalls of the two scraper blades and the two inclined blades respectively. The outer walls of the two scraper blades and the two inclined blades are tightly fitted to the inner sidewalls of the fertilizer bin and the discharge bin respectively.

[0011] Furthermore, two connecting handles are welded to both sides of the outer wall of the fertilizer box, and the inside is circular, which fits tightly against the outer wall of the two scrapers. The two connecting handles are fixedly connected to the external agricultural machinery bolts.

[0012] Furthermore, the inner wall of the feeding bin is tightly fitted to the outer walls of the two inclined strips, and the feeding port at the bottom end has a connecting cylinder, the inner wall of the connecting cylinder being fitted to the outer wall of the conveying blade.

[0013] This utility model has the following beneficial effects:

[0014] 1. The drive motor on the mixing assembly of this utility model drives the shaft to rotate. The spiral blades on the shaft effectively agitate the fertilizer in the fertilizer bin, preventing it from caking due to stagnation. Simultaneously, several crushing rods distributed on the shaft extend into the feeding hopper, actively breaking up any fertilizer clumps that may form, reducing the risk of blockage at the source. The unblocking assembly at the bottom of the shaft, especially the conveying blades, rotates close to the inner wall of the feeding hopper's discharge port. This not only effectively conveys the crushed fertilizer to the discharge port, but the centrifugal force and scraping force generated by its rotation also continuously clean up any small clumps or attachments that may form at the edge of the discharge port, ensuring unobstructed passage. In addition, the drive motor drives the shaft and spiral blades to rotate in opposite directions to the conveying blades, preventing accidental discharge from the feeding hopper's discharge port.

[0015] 2. The mixing assembly of this utility model is integrally manufactured with the side wall of the silo cleaning component. The scraper and diagonal strips included rotate synchronously with the shaft. They fit tightly against the inner side wall of the fertilizer box and the discharge silo, and can continuously scrape off the fertilizer adhering to the box wall and the silo wall, effectively preventing the discharge from being obstructed due to the clumping of material on the wall surface. At the same time, it also helps to maintain the freshness and fluidity of the fertilizer.

[0016] 3. The connecting assembly of this utility model adopts a design combining connecting plates, hexagonal bolts, pin posts, and pin holes. Bolts achieve the main connection, ensuring structural strength; the engagement of the pin posts and pin holes provides quick positioning and initial fixation, while the rubber ring provides sealing and cushioning. This design ensures the stability of the connection between the fertilizer box and the discharge hopper, and also allows for relatively convenient disassembly and separation when cleaning or maintenance is needed, improving the maintainability of the equipment.

[0017] 4. The protective cover bolted to the top of the fertilizer tank in this utility model not only provides an installation platform for the mixing components, but more importantly, it provides physical protection for the top of the fertilizer tank. This avoids potential injury to operators and improves the safety and environmental adaptability of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the agricultural machinery fertilization device provided in the embodiments of this application;

[0020] Figure 2A schematic diagram of the connection structure of the mixing assembly, the unblocking assembly, and the bin wall cleaning assembly provided in the embodiments of this application;

[0021] Figure 3 A schematic diagram of the connection structure between the fertilizer box and the protective cover provided for an embodiment of this application;

[0022] Figure 4 A schematic diagram of the connection structure between the feeding bin and some connecting components provided in the embodiments of this application;

[0023] Figure 5 A schematic diagram of the bottom structure of the fertilizer box and connecting assembly provided in the embodiments of this application.

[0024] In the diagram: 1-Fertilizer bin; 2-Feeding bin; 3-Connecting assembly; 4-Protective cover; 5-Mixing assembly; 6-Dredging assembly; 7-Bin wall cleaning assembly; 11-Connecting handle; 31-Connecting plate; 32-Through hole; 33-Hex bolt; 34-Threaded hole; 35-Rubber ring; 36-Pin post; 37-Pin hole; 41-Supporting platform; 51-Drive motor; 52-Coupling; 53-Shaft; 54-Helical blade; 55-Crushing rod; 61-Conveying head; 62-Conveying blade; 71-Connecting rod; 72-Scraper; 73-Inclined bar. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Example:

[0027] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 An agricultural machinery fertilization device includes a fertilizer box 1 and a feeding bin 2 installed at the bottom of the fertilizer box 1; two connecting handles 11 are welded to both sides of the outer wall of the fertilizer box 1.

[0028] The fertilizer bin 1 has a circular interior. This shape not only facilitates manufacturing but, more importantly, its smooth, curved inner wall helps reduce fertilizer residue and adhesion. Combined with the scraper 72 in the bin wall cleaning assembly 7 (described later), this design more effectively cleans the inner wall of the bin, reducing material flow problems caused by fertilizer clumping. To ensure the structural stability of the fertilizer bin 1 after loading fertilizer and to facilitate its coordinated operation with the scraper 72 in the bin wall cleaning assembly 7, the inner diameter of the fertilizer bin 1 is precisely designed. Its inner diameter is slightly larger than the outer diameter of the scraper 72, allowing the scraper 72 to fit tightly against the inner wall of the fertilizer bin 1 during rotation without generating excessive frictional resistance. This close fit effectively removes fertilizer adhering to the inner wall of the fertilizer bin 1 while ensuring the stability of the scraper 72 during movement. Two connecting handles 11 are symmetrically welded to both sides of the outer wall of the fertilizer bin 1. These two handles not only provide leverage points for moving and hoisting the fertilizer applicator, facilitating operator movement, but more importantly, they are key components for securing the fertilizer tank 1 to external agricultural machinery. Each handle 11 has pre-drilled holes for bolting to the bolt posts on the chassis or frame of the agricultural machinery. This connection method offers advantages such as simple structure, reliable connection, and easy assembly and disassembly, allowing the entire fertilizer applicator to be quickly and securely installed on different types of agricultural machinery, improving the equipment's versatility and operational flexibility. The bolted fastening ensures that the fertilizer tank 1 remains stable during bumpy field operations, preventing shaking or detachment, thus guaranteeing the safety and continuity of fertilization operations.

[0029] The discharge hopper 2 is a key component connecting the fertilizer bin 1 and the final fertilizer outlet. Its main function is to receive the fertilizer falling from the fertilizer bin 1 and guide it to the discharge port through the internal unblocking component 6, while preventing fertilizer from accumulating and clogging here. Its structural design also emphasizes anti-clogging, cleanliness, and the coordinated operation between components.

[0030] The feeding hopper 2 is typically designed to match the shape of the fertilizer bin 1, such as a tapered structure that is narrower at the bottom and wider at the top, to guide the fertilizer to fall smoothly. Its inner wall is precision-machined to ensure a smooth surface and reduce fertilizer flow resistance. Specifically, the inner wall of the feeding hopper 2 is designed to fit tightly against the outer walls of the two inclined strips 73 in the hopper wall cleaning assembly 7. This fit is achieved by precisely controlling the inner diameter of the feeding hopper 2 and the outer diameter of the inclined strips 73. The inclined strips 73 are installed at an angle, and their movement trajectory allows them to continuously and effectively scrape the inner wall of the feeding hopper 2, especially the area near the feeding port, removing any adhering or clumped fertilizer and keeping the inner wall clean and the passage unobstructed. This tight fit ensures effective scraping while avoiding excessive frictional loss through appropriate gap design. A connecting cylinder is located at the bottom of the feeding hopper 2, and the inner wall of the connecting cylinder is designed to fit tightly against the outer wall of the conveying blades 62 in the unblocking assembly 6. When the conveying blades 62 rotate, their outer edges move in close contact with the inner wall of the connecting cylinder. This fitting design serves two main purposes: first, it ensures that the fertilizer can pass through the connecting cylinder efficiently and without leakage under the push of the blades; second, while the blades are rotating, their outer edges can also scrape and clean the inner wall of the connecting cylinder to a certain extent, preventing the fertilizer from clumping or accumulating here, and further reducing the risk of blockage.

[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 An agricultural machinery fertilization device includes a connecting component 3 at the connection between a fertilizer tank 1 and a feeding bin 2, with a protective cover 4 bolted to the top. A stirring component 5 is fixedly installed on the top of the protective cover 4. The crushing end of the stirring component 5 is placed inside the fertilizer tank 1 and the feeding bin 2, and a clearing component 6 is welded to the bottom of the crushing end. The outer wall of the clearing component 6 is fitted against the inner side wall of the feeding port of the feeding bin 2. A bin wall cleaning component 7 is integrally formed on the side wall of the stirring component 5, and the outer end of the bin wall cleaning component 7 is tightly fitted against the inner side wall of the fertilizer tank 1 and the feeding bin 2. The connecting assembly 3 includes four connecting plates 31, four through holes 32, four hexagonal bolts 33, four threaded holes 34, rubber rings 35, four pin posts 36, and four pin holes 37; the protective cover 4 has a built-in support platform 41 on its surface; the stirring assembly 5 includes a drive motor 51, a coupling 52, a shaft 53, a spiral blade 54, and several agitator rods 55; the unblocking assembly 6 includes a conveying head 61 and conveying blades 62; the bin wall cleaning assembly 7 includes several connecting rods 71, two scrapers 72, and two inclined bars 73.

[0032] The connecting component 3 plays a crucial role in securely and sealingly connecting the fertilizer box 1 and the discharge bin 2. Its ingenious design combines mechanical fastening, positioning locking, and leak-proof sealing functions, ensuring a reliable connection between the two components and maintaining stability even under bumpy field conditions. The connecting component 3 consists of several precisely fitted parts. First, four connecting plates 31 are integrally formed on the four outer walls of the fertilizer box 1. This integral design ensures extremely high structural strength and consistency between the connecting plates 31 and the main body of the fertilizer box 1, avoiding stress concentration or weak connection points that may result from later welding or bolting. Simultaneously, four pins 36 are integrally formed at the four corners of the bottom of the fertilizer box 1. The pins 36 primarily serve as initial positioning and auxiliary fixing. Four through holes 32 are precisely drilled on the surface of each of the four connecting plates 31. The diameter and position of these through holes 32 have been carefully calculated to provide channels for subsequent bolting connections. Correspondingly, four threaded holes 34 for bolt engagement and four pin holes 37 for engagement with pin posts 36 are provided on the connecting surface of the discharge bin 2. The positions of the threaded holes 34 and pin holes 37 precisely correspond to the through holes 32 on the connecting plate 31 of the fertilizer tank 1 and the pin posts 36 at the bottom. To enhance the sealing of the connection and prevent fertilizer dust or fine particles from leaking from the connection gap, a rubber ring 35 is placed on the connecting surface of the discharge bin 2. The rubber ring 35 typically has a certain degree of elasticity and compressibility, which can fill any minor unevenness that may exist on the connecting surface, forming an effective seal.

[0033] The connection assembly process of component 3 is as follows: First, the feeding bin 2 is raised to the position where it docks with the fertilizer box 1. At this time, the four pins 36 at the bottom of the fertilizer box 1 will pass through the rubber ring 35 and accurately align with the four pin holes 37 on the feeding bin 2. The pins 36 are inserted into the pin holes 37. This step utilizes the principle of pin positioning, which can quickly and accurately achieve the initial alignment and positioning of the two components, while also providing a certain resistance against rotation and separation. After the pin positioning is completed, the four hexagonal bolts 33 are passed through the through holes 32 on the connecting plate 31 of the fertilizer box 1 in sequence, and then screwed into the corresponding threaded holes 34 of the feeding bin 2. The four hexagonal bolts 33 are tightened using tools such as wrenches. The tightening process of the bolts will apply a uniform preload to the connecting surface, which on the one hand presses the two components tightly together to ensure structural rigidity; on the other hand, the applied pressure will cause the rubber ring 35 to undergo a certain compression deformation, thereby forming a more reliable seal between the connecting surfaces and effectively preventing fertilizer leakage. Through this "pin positioning followed by bolt tightening" connection method, connecting component 3 achieves a highly efficient, accurate, stable, and sealed connection. The design of the pin post 36 and pin hole 37 greatly simplifies the alignment process and improves assembly efficiency; while the tightening of the hexagonal bolt 33 provides sufficient connection strength, ensuring the structural stability of the entire fertilization device during operation; the application of the rubber ring 35 solves the sealing problem at the connection point, improving the overall performance of the device and environmental hygiene.

[0034] The protective cover 4 not only protects the upper mixing component 5 from external environmental influences, but its structural design also cleverly integrates support for the mixing component 5, optimizing the overall layout. The protective cover 4 is preferably made of a material with sufficient strength and weather resistance and covers the surface of the fertilizer tank 1. A support platform 41 is specifically designed and integrated into it. This support platform 41 can be a flat area or a reinforced structure integrally formed with the main body of the protective cover 4, positioned for easy connection to the fixed end of the mixing component 5. After the four corners of the protective cover 4 are bolted to the top of the fertilizer tank 1, the fixed end of the mixing component 5 is then bolted to the support platform 41 on the surface of the protective cover 4. Since the support platform 41 is part of the protective cover 4, and the protective cover 4 is securely installed on the fertilizer tank 1, this connection method effectively transmits and distributes the weight of the mixing component 5 and the vibrations generated during operation to the top surface of the fertilizer tank 1 through the protective cover 4, rather than relying solely on a localized area at the top of the fertilizer tank 1 to bear the load. This helps to distribute the load and enhance the stability of the support, reducing potential localized stress concentrations on the fertilizer tank 1 during the operation of the mixing assembly 5, and extending the service life of the fertilizer tank 1. Furthermore, the protective cover 4 effectively prevents operators from accidentally coming into contact with the high-speed rotating spiral blades 54 during maintenance or observation, improving operational safety. It also reduces the outward diffusion of noise generated by the mixing assembly 5 to some extent.

[0035] The mixing component 5 is one of the core functional components of this agricultural machinery fertilization device. Its main function is to generate mixing force inside the fertilizer tank 1 and convey the fertilizer downward to the discharge hopper 2. Simultaneously, it performs crushing and unblocking operations inside the discharge hopper 2 to effectively prevent fertilizer clumping and blockage. Its structural design cleverly integrates multiple functions. The power source for the mixing component 5 is the drive motor 51. This drive motor 51 is preferably a motor with sufficient power and speed regulation capability, such as a brushless DC motor or an AC asynchronous motor, to ensure that it can drive the entire mixing system to overcome the resistance of the fertilizer. The drive motor 51 is securely fixed to the support platform 41 on the surface of the protective cover 4 by bolts. Its installation position is carefully designed to ensure a stable center of gravity and reduce vibration transmission. The output shaft of the drive motor 51 passes through a pre-set through hole on the support platform 41, where a coupling 52 reliably connects it to the top of the shaft 53. The selection of the coupling 52 takes into account the ability to transmit torque, compensate for possible minor installation errors, and absorb some vibration, ensuring the smoothness and reliability of power transmission. The shaft 53 is the drive shaft of the entire mixing assembly 5, and it is typically made of a metal material with a certain strength and wear resistance. Multiple functional components are fixed to its outer wall by welding or other methods. In the upper section of the shaft 53 located inside the fertilizer tank 1, spiral blades 54 are welded. The spiral blades 54 are designed according to the principle of spiral conveying; when the shaft 53 rotates, the blades push the fertilizer downwards along the inner wall of the fertilizer tank 1, which helps prevent fertilizer accumulation inside the tank and promotes uniform fertilizer distribution. In the lower section of the shaft 53 located inside the discharge hopper 2, several agitator rods 55 are welded. These agitator rods 55 can be designed with different shapes and angles, such as having a certain degree of curvature or a structure with small hammers / crushing teeth at the end. When the shaft 53 rotates, these agitator rods 55 impact and agitate the fertilizer in the discharge hopper 2 at high speed, especially breaking up any potential clumps into small particles, thereby effectively preventing blockage at the discharge port. In addition, the outer wall of the shaft 53 integrates a bin wall cleaning component 7. The specific structure of this component, as described previously, may involve scrapers, etc. Its function is to scrape away fertilizer adhering to the inner walls of the fertilizer bin 1 and the discharge bin 2 during rotation, keeping the inner walls clean and reducing the basis for clumping. The bottom end of the shaft 53 extends to the bottom of the discharge bin 2, where a clogging component 6 is welded. As described previously, the outer wall of the clogging component 6 is tightly fitted to the inner wall of the discharge port of the discharge bin 2. Its specific structure may include components capable of further breaking up bottom clumps or acting directly on the discharge port, serving as a final line of defense against clogging. When the drive motor 51 starts, the entire shaft 53, along with its spiral blades 54, agitator 55, bin wall cleaning component 7, and bottom clogging component 6, rotate synchronously.The spiral blades 54 are responsible for conveying fertilizer from the upper part of the housing to the lower part; the crushing rod 55 and the unblocking component 6 are responsible for breaking up clumps in the feeding bin 2 and keeping the feeding port unobstructed; the bin wall cleaning component 7 is responsible for cleaning the inner wall. This multi-functional integrated design enables the mixing component 5 to work efficiently and collaboratively, significantly improving the anti-clogging performance and operating efficiency of the fertilizer application device.

[0036] The unblocking component 6 is a key component installed at the bottom of the mixing component 5, directly acting on the discharge port of the feeding hopper 2 and the connecting cylinder. Its main function is to actively break up fertilizer clumps that may form at the discharge port using the centrifugal force and scraping force generated by rotation, ensuring that the fertilizer can smoothly pass through the discharge port into the subsequent conveying or dispensing system, thus effectively solving the technical problem of discharge port blockage. The unblocking component 6 consists of two parts: a conveying head 61 and conveying blades 62. The conveying head 61 is the basic structure of the entire component, its top end firmly connected to the bottom end of the shaft 53 by welding. This welding connection provides extremely high structural strength and reliability, ensuring that the unblocking component 6 will not loosen or detach from the shaft 53 under high-speed rotation and fertilizer resistance. The conveying blades 62 are the key part of the unblocking component 6 to achieve its core function. The inner walls of these conveying blades 62 are also fixedly connected to the outer walls of the conveying head 61 by welding. The conveying blades 62 are typically designed as plate-like structures with a specific angle and shape, and are evenly distributed around the conveying head 61. Their outer walls are precisely designed to fit tightly against the discharge port of the hopper 2 and the inner wall of the connecting cylinder. "Tightly fitted" here means that under normal operating conditions, there is only a very small gap between the outer wall of the conveying blades 62 and the inner wall of the discharge port; it can even be designed as a slight interference fit to ensure optimal scraping effect. When the mixing assembly 5 drives the shaft 53 to rotate, the unblocking assembly 6 also rotates at high speed. The outer wall of the conveying blades 62 scrapes tightly against the discharge port of the hopper 2 and the inner wall of the connecting cylinder. This scraping action effectively removes fertilizer adhering to the inner wall of the discharge port, especially wet materials or clumps that are prone to clogging. Simultaneously, the rotation of the blades also generates a certain agitation and crushing force on the fertilizer at the discharge port, preventing large pieces of fertilizer from directly clogging the discharge channel. As described above, the discharge port at the bottom of the discharge hopper 2 is equipped with a connecting cylinder, and the inner wall of the connecting cylinder is in contact with the outer wall of the conveying blade 62. This means that the conveying blade 62 not only acts on the discharge port itself, but may also extend to the beginning of the connecting cylinder, further ensuring the unobstructed flow of the path from the discharge port to the connecting cylinder.

[0037] The main function of the silo wall cleaning assembly 7 is to effectively remove fertilizer adhering to the silo walls by using its scraper blades 72 and inclined blades 73 to closely adhere to and scrape the inner walls of the fertilizer bin 1 and the discharge bin 2 when the mixing assembly 5 is rotating. This is especially effective for fertilizer that is prone to absorbing moisture and clumping or that accumulates in corners and on the walls due to poor flowability. This helps maintain the cleanliness of the inside of the fertilizer bin 1 and the discharge bin 2, prevents poor discharge or blockage caused by material accumulation on the walls, and ensures mixing and conveying efficiency. The connecting rods 71 ​​serve as a bridge connecting the shaft 53 to the two scraper blades 72 and the two inclined blades 73. These connecting rods 71 ​​are preferably evenly distributed on both sides of the outer wall of the shaft 53, and one end is firmly fixed to the outer wall of the shaft 53 by welding. The other end is welded to the inner walls of the scraper blades 72 and the inclined blades 73, respectively. This welding connection ensures that the entire silo wall cleaning assembly 7 has sufficient structural strength and stability when rotating at high speed. The scraper 72 and the inclined strip 73 are the parts that directly contact the silo wall and generate a scraping action. Typically, the two scraper strips 72 and the two inclined strips 73 are arranged symmetrically or asymmetrically as needed. The scraper 72 is designed to fit tightly against the inner wall of the fertilizer bin 1. Its outer wall is precisely manufactured to match the shape of the inner wall of the fertilizer bin 1 and can press firmly against the bin wall during operation. When the stirring assembly 5 rotates, the scraper 72 acts like a rotating scraper, continuously scraping off the fertilizer adhering to the inner wall of the fertilizer bin, keeping the bin wall relatively clean. The inclined strip 73 may have a slightly different design; its shape may have a certain angle, focusing more on a tight fit against the inner wall of the discharge bin 2. In addition to the scraping action, the angled design of the inclined strip 73 may also have a guiding or agitating function, helping to guide the fertilizer flow to the discharge port and, in conjunction with the crushing rod 55, break up any clumps that may form. Its outer wall also fits tightly against the inner wall of the discharge bin 2 to ensure a good scraping effect. When the stirring assembly 5 rotates, the connecting rod 71 drives the scraper 72 and the inclined bar 73 to rotate synchronously, and their outer walls will continuously and evenly scrape the contacted bin wall.

[0038] It should be noted that the specific model and specifications of the drive motor 51 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0039] The power supply and principle of the drive motor 51 are clear to those skilled in the art and will not be described in detail here.

[0040] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An agricultural machine fertilizer application device, comprising a fertilizer tank (1) and a discharge bin (2) mounted at the bottom of the fertilizer tank (1), characterized in that: A connecting component (3) is provided at the connection between the fertilizer box (1) and the feeding bin (2), and a protective cover (4) is fixed to the top with bolts. A stirring component (5) is fixedly installed at the top of the protective cover (4). The crushing end of the stirring component (5) is placed inside the fertilizer box (1) and the feeding bin (2), and a dredging component (6) is welded to the bottom of the crushing end. The outer wall of the dredging component (6) is attached to the inner side wall of the feeding port of the feeding bin (2). A bin wall cleaning component (7) is integrally made on the side wall of the stirring component (5). The outer end of the bin wall cleaning component (7) is tightly attached to the inner side wall of the fertilizer box (1) and the feeding bin (2).

2. An agricultural machine fertilizer application apparatus according to claim 1, wherein, The connecting assembly (3) includes four connecting plates (31), four through holes (32), four hexagonal bolts (33), four threaded holes (34), a rubber ring (35), four pins (36), and four pin holes (37). The four outer walls of the fertilizer box (1) are integrally formed with the four connecting plates (31), and the four bottom corners are integrally formed with the four pins (36). The four connecting plates (31) are respectively provided with the four through holes (32). The feed bin (2) is respectively provided with the four threaded holes (34) and the four pin holes (37). The rubber ring (35) is placed on the surface of the feed bin (2). The bottom ends of the four pins (36) pass through the surface of the rubber ring (35) and are inserted into the four pin holes (37). The bottom ends of the four hexagonal bolts (33) are respectively threaded through the four through holes (32) and connected to the four threaded holes (34).

3. An agricultural machine fertilizer application apparatus as claimed in claim 2, wherein, The protective cover (4) has a built-in support platform (41) on its surface, and its four corners are bolted to the surface of the fertilizer box (1). The surface of the support platform (41) is bolted to the fixed end of the stirring assembly (5).

4. An agricultural machine fertilizer application apparatus as claimed in claim 3, wherein, The mixing assembly (5) includes a drive motor (51), a coupling (52), a shaft (53), a spiral blade (54), and several pulverizing rods (55). The drive motor (51) is bolted to the surface of the support platform (41), and its output end passes through a through hole on the surface of the support platform (41) and is fixedly connected to the top of the shaft (53) through the coupling (52). The outer wall of the shaft (53) is welded with the spiral blade (54), several pulverizing rods (55), and the bin wall cleaning assembly (7), and its bottom end extends to the bottom of the discharge bin (2) and is welded with the unblocking assembly (6). The spiral blade (54) is located inside the fertilizer box (1), and several pulverizing rods (55) are located inside the discharge bin (2).

5. An agricultural machine fertilizer application apparatus as claimed in claim 4, wherein, The unblocking component (6) includes a conveying head (61) and a conveying blade (62). The top end of the conveying head (61) is welded to the bottom end of the shaft (53). The inner wall of the conveying blade (62) is welded to the outer wall of the conveying head (61), and the outer wall is in contact with the inner wall of the discharge port of the discharge bin (2).

6. An agricultural machine fertilizer application apparatus as claimed in claim 5 wherein, The bin wall cleaning assembly (7) includes several connecting rods (71), two scraper blades (72) and two inclined blades (73). One end of each of the connecting rods (71) is welded to both sides of the outer wall of the shaft (53) at equal intervals, and the other end is welded to the inner sidewalls of the two scraper blades (72) and the two inclined blades (73) respectively. The outer walls of the two scraper blades (72) and the two inclined blades (73) are tightly fitted to the inner sidewalls of the fertilizer bin (1) and the discharge bin (2) respectively.

7. An agricultural machine fertilizer application apparatus as claimed in claim 6 wherein, The fertilizer box (1) has two connecting handles (11) welded on both sides of its outer wall. The inside is circular and fits tightly against the outer wall of the two scrapers (72). The two connecting handles (11) are fixedly connected to the external agricultural machinery bolts.

8. An agricultural machine fertilizer application apparatus as claimed in claim 7, wherein, The inner wall of the feeding bin (2) is closely fitted with the outer walls of the two inclined strips (73), and the feeding port at the bottom end has a connecting cylinder, the inner wall of the connecting cylinder is fitted with the outer wall of the conveying blade (62).

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