Fertilizer distributor for quantitative fertilization

By incorporating a crushing roller and screen structure into the fertilizer applicator, the problem of fertilizer agglomeration and clogging caused by impurities is solved, enabling fine and uniform application of fertilizer and improving the working efficiency and quality of the fertilizer applicator.

CN224319911UActive Publication Date: 2026-06-05ANHUI CHENGONG AGRI MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI CHENGONG AGRI MASCH TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing fertilizer applicators, fertilizer clumping and impurities can easily lead to blockages and uneven fertilization, affecting the equipment's lifespan and efficiency.

Method used

The fertilizer box is equipped with a crushing roller and a screen structure that rotate in opposite directions. The crushing roller is used to crush lumpy fertilizer, and the screen is used to grade and remove impurities. Multi-stage screening is achieved through the combined movement of screen one and screen two.

Benefits of technology

It effectively breaks up clumps of fertilizer, ensuring that the fertilizer is fine and uniform, avoiding blockages, and improving fertilization efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224319911U_ABST
    Figure CN224319911U_ABST
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Abstract

The utility model discloses a fertilizer distributor of quantitative fertilization, including fertilization subassembly, the fertilization subassembly includes fertilization box, the inside upper and lower of fertilization box are sequentially provided with screen one and screen two, the end of screen one and screen two is provided with connecting rod and is connected with both, be provided with spring between the connecting rod and the inboard wall of fertilization box who is close, one of the protruding portion is also rotatably provided with cam, the long axis end and the short axis end of cam intermittent resistance this side's connecting rod in the rotation process, drive screen one and screen two reciprocating motion. The utility model discloses the broken roll of opposite rotation that is arranged in the inside of fertilization box, can carry out effective broken treatment to the big piece or agglomerate fertilizer of entering the fertilization box, through the setting of screen one and screen two play the role of classifying screen and remove impurity, thereby avoid the problem of the discharge of not smooth, block and the uneven application of fertilizer caused by the agglomeration of fertilizer and the existence of impurity, improve fertilization efficiency and fertilization quality.
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Description

Technical Field

[0001] This utility model belongs to the field of fertilizer applicator technology, and particularly relates to a fertilizer applicator for quantitative fertilizer application. Background Technology

[0002] A fertilizer applicator is an agricultural machine specifically designed to apply fertilizer evenly and efficiently to the soil, thereby ensuring that crops receive sufficient nutrient supply and thus improving crop yield and quality.

[0003] In existing fertilizer applicators, fertilizer is typically poured directly into the fertilizer box for spreading. However, the fertilizer added directly may contain clumps or impurities. Clumps and impurities can easily cause blockages in parts of the fertilizer applicator, such as the discharge port and feeding pipe. This not only affects the uniformity and efficiency of fertilization but may also lead to equipment damage or the need for frequent maintenance. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] This utility model provides a fertilizer applicator for quantitative fertilization, comprising:

[0006] A fertilizer application assembly, comprising a fertilizer box, wherein a pair of opposing crushing rollers are disposed inside the fertilizer box;

[0007] The fertilizer box has protrusions on opposite side walls. Inside the fertilizer box, screen one and screen two are arranged sequentially from top to bottom. The screening diameter of screen one is larger than that of screen two. Screen one and screen two are respectively located inside the fertilizer box at the upper and lower ends of the corresponding protrusions. A connecting rod is provided at the ends of screen one and screen two on the same side to connect them. A spring is provided between the connecting rod and the adjacent inner side wall of the fertilizer box. A cam is also rotatably installed in one of the protrusions. During the rotation of the cam, its long axis end and short axis end intermittently abut against the connecting rod on that side, driving screen one and screen two to reciprocate.

[0008] As a preferred embodiment of the above technical solution, the fertilizer box is provided with a feed inlet at the top and a discharge outlet at the bottom, and a feeding pipe connected to the discharge outlet is provided at the bottom.

[0009] As a preferred embodiment of the above technical solution, the opposing crushing rollers are positioned inside the fertilizer box below the feed inlet.

[0010] As a preferred embodiment of the above technical solution, a corresponding motor is provided on the outer wall of the fertilizer box at the position corresponding to the crushing roller, and the output shaft of the motor is connected to the corresponding crushing roller.

[0011] As a preferred embodiment of the above technical solution, it also includes a frame, wherein the frame includes a body and the fertilizer box is mounted on the body.

[0012] As a preferred embodiment of the above technical solution, the frame is provided with at least two casters.

[0013] As a preferred embodiment of the above technical solution, the frame is also provided with handles.

[0014] As a preferred embodiment of the above technical solution, a second motor is provided on the outer wall of the fertilizer box at the position corresponding to the cam, and the output end of the second motor is fixedly connected to the mounting shaft of the cam.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention utilizes counter-rotating crushing rollers inside the fertilizer box to effectively crush large or lumpy fertilizer particles entering the box. The use of screen one and screen two facilitates the grading and removal of impurities, thereby avoiding problems such as poor discharge, blockage, and uneven fertilizer application caused by fertilizer lumps and impurities, thus improving fertilization efficiency and quality. Attached Figure Description

[0017] Figure 1 The diagram shown is a front view of the fertilizer applicator in the embodiment.

[0018] Figure 2 The diagram shown is a schematic representation of the internal structure of the fertilizer box in the embodiment.

[0019] Reference numerals: 11. Frame; 12. Casters; 13. Handle; 21. Fertilizer box; 22. Protrusion; 23. Screen 1; 24. Screen 2; 25. Connecting rod; 26. Spring; 27. Cam; 28. Crushing roller; 271. Motor 1; 281. Motor 2; 210. Feed inlet; 211. Discharge outlet; 30. Feeding pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0021] Example

[0022] like Figure 1 , Figure 2 As shown, Figure 1 The diagram shown is a front view of the fertilizer applicator in the embodiment. Figure 2 The diagram shown is a schematic representation of the internal structure of the fertilizer box in the embodiment.

[0023] This device includes:

[0024] The frame includes a frame body 11, which is provided with at least two casters 12 and a handle 13.

[0025] The fertilizer application component includes a fertilizer box 21 mounted on the frame 11. The fertilizer box 21 has a feed inlet 210 at the top and a discharge outlet 211 at the bottom, and a feeding pipe 30 connected to the discharge outlet 211 at the bottom.

[0026] The frame 11 is the basic frame of the entire fertilizer applicator. The casters 12 make it easy to move the fertilizer applicator in the field. The handle 13 is used to assist the operator in pushing and pulling the fertilizer applicator.

[0027] The fertilizer box 21 is the main container for storing and pre-treating fertilizer. The inlet 210 at the top is used to add fertilizer, and the outlet 211 at the bottom is connected to the feeding pipe 30. The feeding pipe 30 is responsible for conveying the pre-treated fertilizer from the fertilizer box 21 to the ground. The feeding pipe 30 is equipped with a valve to enable quantitative feeding of fertilizer, thereby ensuring the accuracy of fertilization.

[0028] like Figure 2 As shown, Figure 2 The diagram shown is a schematic representation of the internal structure of the fertilizer box in the embodiment.

[0029] Inside the fertilizer box 21, and below the feed inlet 210, there is a pair of opposing rotating crushing rollers 28. On the outer wall of the fertilizer box 21, corresponding to the crushing rollers 28, there is a corresponding motor 271. The output shaft of the motor 271 is connected to the corresponding crushing roller 28.

[0030] Opposite rotation means that when one of the crushing rollers 28 rotates clockwise, the other crushing roller 28 rotates counterclockwise. The two crushing rollers 28 are equipped with two independent motors 271 as drive sources.

[0031] The crushing roller 28 is designed to physically break down fertilizer blocks entering the fertilizer box 21, reducing blockages caused by clumping and ensuring that the fertilizer particles are small enough to facilitate subsequent screening and uniform fertilization, which helps to improve the fertilizer's dissolution rate and absorption efficiency.

[0032] The fertilizer box 21 has protrusions 22 on opposite side walls. Inside the fertilizer box 21, screen 1 23 and screen 24 are arranged in sequence from top to bottom. The screening diameter of screen 1 23 is larger than that of screen 24.

[0033] Screen 1 23 and screen 2 24 are respectively located inside the fertilizer box 21 and at the upper and lower ends of the corresponding protrusion 22. The ends of screen 1 23 and screen 2 24 on the same side are connected by a connecting rod 25. A spring 26 is provided between the connecting rod 25 and the inner wall of the fertilizer box 21. A cam 27 is also rotatably provided in one of the protrusions 22. During the rotation of the cam 27, its long axis end and short axis end intermittently abut against the connecting rod 25 on that side, driving screen 1 23 and screen 2 24 to reciprocate.

[0034] Screen 1 (23) and screen 2 (24) serve as graded screening. Screen 1 (23) has a larger aperture and is used to initially remove large particles of impurities, while screen 2 (24) has a smaller aperture and is used to further finely screen the fertilizer that has already been initially screened to remove small particles of impurities.

[0035] The protrusion 22 serves as a positioning frame structure for auxiliary installation support. After the screen 1 23 and screen 2 24 are connected by the connecting rod 25, their two ends are embedded in the protrusion 22. The spring 26 and cam 27 are provided to push the screen 1 23 and screen 2 24 back and forth, forming a back and forth vibration effect, which improves the screening effect of the screen 1 23 and screen 2 24 and the continuity of fertilizer discharge.

[0036] Specifically, a second motor 281 is installed on the outer wall of the fertilizer box 21 at the position corresponding to the cam 27. The output end of the second motor 281 is fixedly connected to the mounting shaft of the cam 27, and the second motor 281 serves as the driving source for the cam 27. The two ends of the spring 26 are fixedly connected to the connecting rod 25 and the inner wall of the fertilizer box 21, respectively. The spring 26 plays a reset role and cooperates with the cam 27 to enable the screen 1 23 and the screen 2 24 to achieve reciprocating motion.

[0037] The reciprocating motion paths of screen 1 23 and screen 2 24 are both within a controllable range and will not deviate from the original path. In addition, the fertilizer box 21 is equipped with a manhole, which is a feature of the prior art, and can effectively treat the impurities screened out by screen 1 23 and screen 2 24.

[0038] Working principle: The fertilizer applicator is pushed to the designated working position by the moving wheels 12 at its bottom. The operator can control the direction and movement of the fertilizer applicator through the handle 13. Fertilizer is added from the feed port 210 at the top of the fertilizer box 21. After the fertilizer falls into the fertilizer box 21, it first comes into contact with a pair of opposing rotating crushing rollers 28. The crushing rollers 28 crush large pieces of fertilizer into smaller particles for subsequent screening.

[0039] After being crushed, the fertilizer falls onto screen 23, which has a larger screening diameter and is used to initially screen out larger particles of impurities. The fertilizer after initial screening falls onto screen 24 below, which has a smaller screening diameter and further screens out finer particles of impurities. During the screening process, the rotating cam 27 intermittently pushes the connecting rod 25, which connects screen 23 and screen 24, causing the two screens to reciprocate simultaneously, thereby helping the fertilizer to pass through the screens better. After two stages of screening, the fertilizer finally enters the feeding pipe 30 through the discharge port 211 at the bottom of the fertilizer box 21. The feeding pipe 30 is equipped with a valve, which can adjust the amount of fertilizer to be added as needed to achieve quantitative fertilization.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A fertilizer applicator for quantitative fertilization, characterized in that, include: Fertilizer assembly, the fertilizer assembly including fertilizer box (21), the fertilizer box (21) is provided with a pair of crushing rollers (28) rotating in opposite directions; The fertilizer box (21) has protrusions (22) on opposite side walls. Inside the fertilizer box (21), a first screen (23) and a second screen (24) are arranged sequentially, one above the other. The screening diameter of the first screen (23) is larger than that of the second screen (24). The first screen (23) and the second screen (24) are respectively located inside the fertilizer box (21) at the upper and lower ends corresponding to the protrusions (22). A connecting rod (25) is provided at the end of the second mesh (24) on the same side to connect the two. A spring (26) is provided between the connecting rod (25) and the inner wall of the nearby fertilizer box (21). A cam (27) is also rotatably provided in one of the protrusions (22). During the rotation of the cam (27), its long axis end and short axis end intermittently abut against the connecting rod (25) on that side, driving the first mesh (23) and the second mesh (24) to reciprocate.

2. The fertilizer applicator for quantitative fertilization according to claim 1, characterized in that, The fertilizer box (21) has an inlet (210) at the top and an outlet (211) at the bottom, and a feeding pipe (30) connected to the outlet (211) at the bottom.

3. The fertilizer applicator for quantitative fertilization according to claim 1, characterized in that, The opposing crushing rollers (28) are positioned inside the fertilizer box (21) below the feed inlet (210).

4. The fertilizer applicator for quantitative fertilization according to claim 1, characterized in that, On the outer wall of the fertilizer box (21), a motor (271) is provided corresponding to the position of the crushing roller (28), and the output shaft of the motor (271) is connected to the corresponding crushing roller (28).

5. The fertilizer applicator for quantitative fertilization according to claim 1, characterized in that, It also includes a frame, which includes a frame body (11), and the fertilizer box (21) is mounted on the frame body (11).

6. The fertilizer applicator for quantitative fertilization according to claim 5, characterized in that, The frame (11) is provided with at least two casters (12).

7. The fertilizer applicator for quantitative fertilization according to claim 5, characterized in that, The frame (11) is also equipped with handles (13).

8. The fertilizer applicator for quantitative fertilization according to claim 1, characterized in that, A second motor (281) is provided on the outer wall of the fertilizer box (21) at the position corresponding to the cam (27), and the output end of the second motor (281) is fixedly connected to the mounting shaft of the cam (27).