Compound fertilizer grinding device

By adjusting the grinding gap and controlling the sliding door through a hydraulic cylinder and bevel gear transmission system, the problem of uneven fertilizer particles in the existing equipment has been solved, and the uniformity of compound fertilizer particles and the controllability of feeding speed have been achieved, thus improving the stability and efficiency of the equipment.

CN223959731UActive Publication Date: 2026-03-03HENAN HUANGFAN DISTRICT LUYUAN FERTILIZER CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520491046.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-03
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Existing compound fertilizer grinding equipment cannot adjust the grinding gap, making it difficult to maintain consistent fertilizer particle size and uniformity, resulting in significant fluctuations in product quality.

Method used

The system employs a hydraulic cylinder-driven adjustment assembly and a bevel gear transmission system. The hydraulic cylinder moves the connecting block to adjust the grinding roller, and the bevel gear transmission enables precise adjustment of the grinding gap. The hydraulic cylinder drives the rotating rod and the opening and closing of the sliding door to control the feeding speed.

Benefits of technology

This achieves stability in fertilizer particle size and uniformity, improves product quality stability and the applicability of the grinding device, ensures controllable feeding speed, and enhances the practicality and efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223959731U_ABST
    Figure CN223959731U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of compound fertilizer grinding, and discloses a compound fertilizer grinding device which comprises a first hollow block, the top of the first hollow block is fixedly connected with a second hollow block, the side wall of the second hollow block is fixedly connected with a second supporting plate, and the top of the second supporting plate is provided with an adjusting assembly. And the adjusting assembly comprises a second hydraulic cylinder, the bottom of the second hydraulic cylinder is fixedly connected to the top of the second supporting plate, the output end of the second hydraulic cylinder is fixedly connected with a connecting block, the side wall of the connecting block is rotationally connected with a second bevel gear, and one side of the second bevel gear is fixedly connected with a grinding roller. According to the device, a second hydraulic cylinder drives a connecting block to move, and the connecting block drives a grinding roller to slide on the inner wall of a second hollow block, so that the effect of adjusting a grinding gap is achieved, and the problems that the size and the uniformity of a fertilizer are difficult to keep consistent and the product quality fluctuates greatly due to the fact that the grinding gap cannot be adjusted are solved; and the stability of the fertilizer grinding device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer grinding technology, and in particular to a compound fertilizer grinding device. Background Technology

[0002] Compound fertilizers, as an indispensable production material in modern agriculture, have their particle size and uniformity directly affecting fertilizer effectiveness and crop absorption efficiency. To meet the specific needs of different crops for fertilizer particles, compound fertilizer grinding devices have emerged. These devices refine and homogenize fertilizer particles through mechanical grinding, thereby improving fertilizer utilization and crop absorption efficiency.

[0003] Existing compound fertilizer grinding devices typically employ a fixed grinding structure, with core components including grinding rollers, a drive motor, and a fixed housing. The drive motor rotates the grinding rollers via a transmission shaft, utilizing the fixed gap between the grinding rollers and the housing to compress and grind the fertilizer. This type of device has a relatively simple structure, primarily relying on mechanical transmission and the fixed gap to achieve its grinding function.

[0004] A significant problem with existing technologies is the inability to adjust the grinding gap. Because the grinding gap is fixed, it's difficult to maintain consistent fertilizer particle size and uniformity during the grinding process. Even with identical raw materials, different batches of fertilizer will exhibit significant differences in particle size due to the non-adjustable grinding gap, leading to substantial fluctuations in product quality. Therefore, a compound fertilizer grinding device is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a compound fertilizer grinding device, which aims to improve the problem in the prior art that the grinding gap cannot be adjusted, resulting in difficulty in maintaining the size and uniformity of fertilizer particles and large fluctuations in product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A compound fertilizer grinding device includes a first hollow block, a second hollow block fixedly connected to the top of the first hollow block, a second support plate fixedly connected to the side wall of the second hollow block, and an adjustment component provided on the top of the second support plate.

[0008] The adjustment assembly includes a second hydraulic cylinder, the bottom of which is fixedly connected to the top of the second support plate. A connecting block is fixedly connected to the output end of the second hydraulic cylinder. A second bevel gear is rotatably connected to the side wall of the connecting block. A grinding roller is fixedly connected to one side of the second bevel gear. The outer wall of the grinding roller is rotatably connected to the inner wall of the second hollow block. A drive assembly is provided on the top of the second support plate.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a motor, the outer wall of which is fixedly connected to the top of the second support plate, a rotating shaft is fixedly connected to the output end of the motor, and a first bevel gear is fixedly connected to the outer wall of the rotating shaft, the first bevel gear meshing with the second bevel gear.

[0011] As a further description of the above technical solution:

[0012] A connecting frame is fixedly connected to the top of the second hollow block, and a first support plate is fixedly connected to the side wall of the connecting frame.

[0013] As a further description of the above technical solution:

[0014] A first hydraulic cylinder is fixedly connected to the top of the first support plate, and a second rotating rod is fixedly connected to the output end of the first hydraulic cylinder.

[0015] As a further description of the above technical solution:

[0016] The bottom of the second rotating rod is rotatably connected to the top of the first support plate, and the top of the second rotating rod is rotatably connected to the first rotating rod.

[0017] As a further description of the above technical solution:

[0018] The top of the second rotating rod is rotatably connected to a third rotating rod, the bottom of the third rotating rod is fixedly connected to a fixing block, and the bottom of the fixing block is fixedly connected to a connecting plate.

[0019] As a further description of the above technical solution:

[0020] The connecting plate has a sliding rail slidably connected to its side wall, and the first support plate has a sliding rail fixedly connected to its top. The inner wall of the sliding rail is slidably connected to the side wall of the sliding door.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the connecting block is moved by the second hydraulic cylinder. The movement of the connecting block causes the grinding roller to slide on the inner wall of the second hollow block, thereby achieving the effect of adjusting the grinding gap. This solves the problem that the size and uniformity of fertilizer particles are difficult to maintain due to the inability to adjust the grinding gap, resulting in large fluctuations in product quality and improving the stability of the fertilizer grinding device.

[0023] 2. In this utility model, the first rotating rod, the second rotating rod and the third rotating rod are driven to rotate by the first hydraulic cylinder, which in turn drives the sliding door to move and slide inside the slide rail. This achieves the effect of controlling the opening and closing of the sliding door, solving the problem that the opening and closing of the sliding door cannot be controlled, resulting in the inability to effectively control the feeding speed during fertilizer grinding, thus leading to the inability to guarantee fertilizer quality. This improves the practicality of the fertilizer grinding device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a compound fertilizer grinding device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the inner wall structure of the second hollow block of a compound fertilizer grinding device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the outer wall structure of the connecting frame of a compound fertilizer grinding device proposed in this utility model.

[0027] Legend:

[0028] 1. First hollow block; 2. Connecting frame; 3. First support plate; 4. First hydraulic cylinder; 5. Sliding door; 6. Second hollow block; 7. Second support plate; 8. Motor; 9. First bevel gear; 10. Second hydraulic cylinder; 11. Second bevel gear; 12. Connecting block; 13. Grinding roller; 14. Rotating shaft; 15. First rotating rod; 16. Second rotating rod; 17. Third rotating rod; 18. Fixing block; 19. Connecting plate; 20. Slide rail. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 and Figure 2 An embodiment of this utility model provides a compound fertilizer grinding device, including a first hollow block 1, a second hollow block 6 fixedly connected to the top of the first hollow block 1, the first hollow block 1 and the second hollow block 6 are made of high-strength wear-resistant alloy steel, which has good wear resistance and impact resistance, and can withstand the friction and pressure generated during the fertilizer grinding process, thus extending the service life of the equipment. A second support plate 7 is fixedly connected to the side wall of the second hollow block 6, and an adjustment component is provided on the top of the second support plate 7.

[0031] The adjustment assembly includes a second hydraulic cylinder 10. The bottom of the second hydraulic cylinder 10 is fixedly connected to the top of the second support plate 7. A connecting block 12 is fixedly connected to the output end of the second hydraulic cylinder 10. The connecting block 12 is made of high-strength cast iron and has good pressure resistance and wear resistance. It can stably connect the second hydraulic cylinder 10 and the grinding roller 13 to ensure smooth transmission. A second bevel gear 11 is rotatably connected to the side wall of the connecting block 12. A grinding roller 13 is fixedly connected to one side of the second bevel gear 11. The grinding roller 13 is made of high-hardness tool steel and its surface has undergone heat treatment and coating processes, giving it excellent wear resistance and corrosion resistance. It can efficiently grind fertilizer and reduce wear. The outer wall of the grinding roller 13 is rotatably connected to the inner wall of the second hollow block 6. A drive assembly is set on the top of the second support plate 7. The drive assembly includes a motor 8. The outer wall of the motor 8 is fixedly connected to the top of the second support plate 7. A rotating shaft 14 is fixedly connected to the output end of the motor 8. The rotating shaft 14 is made of high-strength alloy steel and has excellent torsional strength and wear resistance. It can stably transmit the power of the motor 8 and ensure the reliability of the equipment operation. A first bevel gear 9 is fixedly connected to the outer wall of the rotating shaft 14. The first bevel gear 9 meshes with the second bevel gear 11. The first bevel gear 9 and the second bevel gear 11 are made of high-quality alloy steel and have undergone precision machining and heat treatment, giving them high hardness and wear resistance. They can achieve efficient power transmission and ensure the stable rotation of the grinding roller 13.

[0032] Specifically, the output of motor 8 drives the rotating shaft 14 to rotate, which in turn drives the first bevel gear 9 on the outer wall to rotate. The rotation of the first bevel gear 9 further drives the second bevel gear 11, which meshes with it, to rotate as well. The rotation of the second bevel gear 11 drives the grinding roller 13 to rotate within the inner wall of the second hollow block 6, thus achieving the grinding effect on the fertilizer. Next, when adjusting the grinding gap, the output of the second hydraulic cylinder 10 first drives the connecting block 12 to move. The movement of the connecting block 12 drives the grinding roller 13 to move within the inner wall of the second hollow block 6, thus achieving precise adjustment of the grinding gap, ensuring the uniformity and efficiency of fertilizer grinding. Furthermore, the flexible gap adjustment function adapts to the grinding needs of fertilizers with different particle sizes, improving the applicability and working efficiency of the equipment.

[0033] Reference Figure 1 and Figure 3A connecting frame 2 is fixedly connected to the top of the second hollow block 6. The connecting frame 2 is made of high-strength carbon structural steel, which has good load-bearing capacity and anti-deformation performance. It can stably connect the second hollow block 6 and the first support plate 3, ensuring the stability of the overall structure. The first support plate 3 is fixedly connected to the side wall of the connecting frame 2. The first hydraulic cylinder 4 is fixedly connected to the top of the first support plate 3. The output end of the first hydraulic cylinder 4 is fixedly connected to the second rotating rod 16. The bottom of the second rotating rod 16 is rotatably connected to the top of the first support plate 3. The top of the second rotating rod 16 is rotatably connected to the first rotating rod 15. The top of the second rotating rod 16 is rotatably connected to the third rotating rod 17. The bottom of the third rotating rod 17 is fixedly connected to the fixing block 18, which is made of high-strength cast iron. The first support plate 3 is fixedly connected to the top of the sliding door 5. The sliding door 5 is made of high-strength wear-resistant alloy steel, which has good wear resistance and impact resistance. It can withstand the friction and pressure generated during fertilizer grinding and extend the service life of the equipment. The bottom of the fixed block 18 is fixedly connected to the connecting plate 19, and the side wall of the connecting plate 19 is slidably connected to the slide rail 20. The slide rail 20 is made of high-hardness tool steel, and the surface is heat-treated and coated. It has excellent wear resistance and corrosion resistance, and can provide a stable sliding track for the sliding door 5, reducing friction loss. The inner wall of the slide rail 20 is slidably connected to the side wall of the sliding door 5. The sliding door 5 is made of high-strength wear-resistant alloy steel, which has good wear resistance and impact resistance. It can withstand the friction and pressure generated during fertilizer grinding and extend the service life of the equipment.

[0034] Specifically, when using the compound fertilizer grinding device, the output end of the first hydraulic cylinder 4 first drives the first rotating rod 15 to rotate. The rotation of the first rotating rod 15 moves one of the fixed blocks 18, and the movement of the fixed block 18 further causes the sliding door 5 to slide inside the slide rail 20. During this process, the output end of the first hydraulic cylinder 4 also drives the second rotating rod 16 to rotate, causing it to rotate on top of the first support plate 3. The rotation of the second rotating rod 16 drives the third rotating rod 17 at the top to rotate as well. The rotation of the third rotating rod 17 again moves the fixed block 18, and the movement of the fixed block 18 further causes the sliding door 5 to slide inside the slide rail 20, realizing precise control of the opening and closing of the sliding door 5, thereby ensuring the smooth progress of the compound fertilizer grinding process.

[0035] Working principle: When using the compound fertilizer grinding device, the output end of the first hydraulic cylinder 4 drives the first rotating rod 15 to rotate. After the first rotating rod 15 rotates, it moves one of the fixed blocks 18. After the fixed block 18 moves, it drives the sliding door 5 to slide inside the slide rail 20. After this process, the output end of the first hydraulic cylinder 4 drives the second rotating rod 16 to rotate, making it rotate on the top of the first support plate 3. Then, after the second rotating rod 16 rotates, it drives the third rotating rod 17 on the top to rotate as well. After the third rotating rod 17 rotates, it drives the fixed block 18 to move. The movement of the fixed block 18 drives the sliding door 5 to slide inside the slide rail 20, thus achieving the effect of controlling the opening and closing of the sliding door 5.

[0036] Subsequently, the output end of the motor 8 drives the rotating shaft 14 to rotate. After the rotating shaft 14 rotates, it drives the first bevel gear 9 on the outer wall to rotate. After the first bevel gear 9 rotates, it drives the second bevel gear 11 that meshes with it to rotate as well. At the same time, after the second bevel gear 11 rotates, it drives the grinding roller 13 to rotate on the inner wall of the second hollow block 6, thus achieving the effect of grinding fertilizer. Next, when adjusting the grinding gap, the output end of the second hydraulic cylinder 10 drives the connecting block 12 to move. After the connecting block 12 moves, it drives the grinding roller 13 to move on the inner wall of the second hollow block 6, thus achieving the effect of adjusting the grinding gap.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compound fertilizer grinding device comprising a first hollow block (1), characterized in that: The first hollow block (1) top fixedly connected with the second hollow block (6), the second hollow block (6) side wall fixedly connected with the second support plate (7), the second support plate (7) top is provided with adjusting assembly; The adjusting assembly includes a second hydraulic cylinder (10), the second hydraulic cylinder (10) bottom fixedly connected in the second support plate (7) top, the second hydraulic cylinder (10) output end fixedly connected with connecting block (12), the connecting block (12) side wall rotatably connected with second bevel gear (11), the second bevel gear (11) one side fixedly connected with grinding roller (13), the grinding roller (13) outer wall rotatably connected in the second hollow block (6) inner wall, the second support plate (7) top is provided with drive assembly.

2. A compound fertilizer grinding device according to claim 1, characterized in that: The drive assembly includes a motor (8), the motor (8) outer wall fixedly connected in the second support plate (7) top, the motor (8) output end fixedly connected with rotating shaft (14), the rotating shaft (14) outer wall fixedly connected with first bevel gear (9), the first bevel gear (9) with the second bevel gear (11) is engaged.

3. A compound fertilizer grinding device according to claim 2, characterized in that: The second hollow block (6) top fixedly connected with the connecting frame (2), the connecting frame (2) side wall fixedly connected with the first support plate (3).

4. A compound fertilizer grinding device according to claim 3, characterized in that: The first support plate (3) top fixedly connected with the first hydraulic cylinder (4), the first hydraulic cylinder (4) output end fixedly connected with second rotating rod (16).

5. A compound fertilizer grinding device according to claim 4, characterized in that: The second rotating rod (16) bottom rotatably connected in the first support plate (3) top, the second rotating rod (16) top rotatably connected with first rotating rod (15).

6. A compound fertilizer grinding device according to claim 5, characterized in that: The second rotating rod (16) top rotatably connected with third rotating rod (17), the third rotating rod (17) bottom fixedly connected with fixed block (18), the fixed block (18) bottom fixedly connected with connecting plate (19).

7. A compound fertilizer grinding device according to claim 6, characterized in that: The connecting plate (19) side wall slidingly connected with slide rail (20), the first support plate (3) top fixedly connected with slide rail (20), the slide rail (20) inner wall slidingly connected in the sliding door (5) side wall.