Air-blowing type potato granular fertilizer ring application device

The air-blown potato granule fertilizer ring application device achieves uniform ring application of fertilizer, solving the problem of uneven fertilizer distribution, improving fertilizer utilization and seedling quality, and reducing production costs and soil pollution.

CN223993957UActive Publication Date: 2026-03-17NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Current potato fertilization methods result in uneven fertilizer distribution and low utilization rates, affecting plant nutrition and increasing production costs, and may also cause soil pollution.

Method used

A gas-blown potato granule fertilizer ring application device is designed. Through the combination of ring application disc, blower and fertilizer box, the granule fertilizer is applied evenly around the soil by using wind power.

Benefits of technology

It improved the uniformity of fertilizer distribution and utilization efficiency, enhanced seedling quality, reduced production costs, and decreased soil pollution.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223993957U_ABST
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Abstract

The utility model discloses an air-blowing type potato granular fertilizer ring application device mechanism and belongs to agricultural machinery. The device is composed of a chemical fertilizer box, a rack, an annular application disc mounting frame, a buried annular application cylinder, an annular application disc shell, an annular application disc cover plate, a fertilizer pipe, an air pipe, a fan, an annular application disc main shaft, an annular application cylinder mounting pipe, an air inlet pipe, a fertilizer inlet pipe, a compression spring, a sealing rubber ring, a supporting rod, a bearing, a roller, a roller mounting pin, a mounting pipe base, a fertilizer baffle, a fertilizer baffle mounting seat, a rotary mounting ring, a fixed fertilizer distribution bin and a gasket. The potato ring planting chemical fertilizer applying device can complete potato ring planting chemical fertilizer applying operation, and is good in fertilizer applying uniformity, high in efficiency, few in use faults and novel and unique in structure.
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Description

Technical Field

[0001] This utility model belongs to agricultural machinery and mainly relates to an air-blowing granular fertilizer ring application device suitable for the application of fertilizer around potato seed. Background Technology

[0002] Potatoes are an important staple crop in my country. Applying seed fertilizer during the potato planting stage can supplement nutrients for seedlings, promote uniform and robust seedling growth, and lay the foundation for subsequent plant growth. Current fertilization equipment typically uses a strip application method, where small furrows are dug on one or both sides of the planting furrow, 5-10 cm away from the seed potato, and fertilizer is applied before covering with soil. This method results in fertilizer being concentrated on only one or both sides of the seed potato, leading to uneven fertilizer distribution and low fertilizer utilization. This can result in insufficient nutrition for potato plants, affecting their development and maturity; or it can lead to excessive fertilizer application, increasing production costs and polluting the soil. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of potato seed fertilizer application, to develop and design an air-blowing potato granule fertilizer ring application device to achieve the effect of fertilizing around the seed potatoes, thereby improving the uniformity of fertilizer distribution and utilization efficiency, and achieving the goals of improving seedling quality, reducing production costs, and reducing soil pollution.

[0004] The purpose of this invention is achieved as follows: A fertilizer box, a ring-application disc mounting bracket, and a blower are fixedly mounted on a frame. Both ends of the ring-application disc main shaft are rotatably mounted on the ring-application disc mounting bracket. Both ends of the fertilizer pipe are fixedly mounted to the bottom outlet of the fertilizer box and the inlet of the fertilizer inlet pipe, respectively. Both ends of the air duct are fixedly mounted to the air outlet of the blower and the inlet of the air inlet pipe, respectively. A fertilizer baffle mounting base is fitted onto the central hexagonal prism section of the ring-application disc main shaft. Six fertilizer baffles are fixedly mounted in the six mounting slots of the fertilizer baffle mounting base. Fertilizer plates are rotatably and evenly distributed inside the fixed fertilizer distribution bin, and are tightly fitted to the inner wall of the fixed fertilizer distribution bin. The fixed fertilizer distribution bin is rotatably mounted on the circular section of the ring-applying disc main shaft via bearings. A rotating mounting ring is rotatably mounted on the outer layer of the fixed fertilizer distribution bin. The rotating mounting ring has six through holes evenly distributed on it, and a mounting tube base is coaxially mounted at each through hole. The other end of each mounting plate base has an internally threaded mounting hole, which is threadedly connected to a ring-applying cylinder mounting tube. Inside the ring-applying cylinder mounting tube, an insertion ring-applying cylinder is coaxially mounted. A compression spring is installed in the gap between the insertion ring-applying cylinder and the ring-applying cylinder mounting tube. The two ends of the compression spring are respectively fixed in the groove of the outer ring of the insertion ring-applying cylinder and the groove of the inner ring of the ring-applying cylinder mounting tube. A sealing rubber ring is installed in the mounting groove on the upper outer surface of the insertion ring-applying cylinder, and is in close contact with the inner wall of the ring-applying cylinder mounting tube and the mounting tube base. One end of the support rod passes through the slotted through hole on the ring-applying cylinder mounting tube and is mounted on the insertion ring-applying cylinder. The other end is mounted by a roller mounting pin. Equipped with rollers, forming a cam-roller fit with the cam-shaped surface on the rear surface of the fixed fertilizer bin, the ring-applying disc outer shell is installed on the second hexagonal prism section on the left side of the ring-applying disc main shaft. Six through holes are evenly distributed along the circumference on the ring-applying disc outer shell, through which six sets of soil-inserting ring-applying cylinders pass. The ring-applying disc cover plate is rotatably installed at the rightmost end of the ring-applying disc main shaft via a bearing. Shims and fixing screws are installed on the outermost ends of the ring-applying disc main shaft to fix all components. This completes the air-blowing potato granule fertilizer ring-applying device.

[0005] This invention completes and realizes the ring planting and fertilization operation of potatoes, which greatly improves the uniformity of fertilization, is beneficial to the development of potato seedlings and the precise application of fertilizers. At the same time, the device is simple to operate and has the characteristics of novel, unique and reasonable structure, high operating efficiency, good quality, reliable use and few failures, providing technical support for realizing highly uniform ring planting and fertilization of potatoes. Attached Figure Description

[0006] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the air-blown potato granule fertilizer ring application device;

[0007] Figure 2 This is a two-dimensional front view of a single unit of an air-blown potato granule fertilizer ring application device;

[0008] Figure 3 yes Figure 2Half section along line AA;

[0009] Figure 4 This is a two-dimensional top view of a single unit of an air-blown potato granule fertilizer ring application device;

[0010] Figure 5 yes Figure 4 Half section in the middle BB direction;

[0011] Figure 6 yes Figure 3 Enlarged view of part C in the middle;

[0012] Figure 7 This is a rear view of a single unit of an air-blown potato granule fertilizer ring application device after the outer shell has been removed.

[0013] Part number description in the image:

[0014] 1. Fertilizer box; 2. Frame; 3. Ring applicator mounting bracket; 4. Soil-entering ring applicator cylinder; 5. Ring applicator outer shell; 6. Ring applicator cover plate; 7. Fertilizer pipe; 8. Air duct; 9. Fan; 10. Ring applicator main shaft; 11. Ring applicator cylinder mounting pipe; 12. Air inlet pipe; 13. Fertilizer inlet pipe; 14. Compression spring; 15. Sealing rubber ring; 16. Support rod; 17. Bearing; 18. Roller; 19. Roller mounting pin; 20. Mounting pipe base; 21. Fertilizer baffle plate; 22. Fertilizer baffle plate mounting seat; 23. Rotating mounting ring; 24. Fixed fertilizer distribution bin; 25. Gasket; 26. Fixing clip. Detailed Implementation

[0015] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The air-blowing potato granule fertilizer ring application device comprises a fertilizer box 1, a ring application disc mounting frame 3, and a blower 9, all fixedly mounted on a frame 2. The two ends of the ring application disc main shaft 10 are rotatably mounted on the ring application disc mounting frame 3. The two ends of the fertilizer pipe 7 are fixedly mounted at the bottom outlet of the fertilizer box 1 and the inlet of the fertilizer inlet pipe 13, respectively. The two ends of the air pipe 8 are fixedly mounted at the air outlet of the blower 9 and the inlet of the air inlet pipe 12, respectively. A fertilizer baffle mounting seat 22 is fitted onto the central hexagonal prism section of the ring application disc main shaft 10. Fertilizer baffles 21 are fixedly mounted in the six mounting slots of the fertilizer baffle mounting seat 22. Six fertilizer baffles 21 are rotatably and evenly distributed inside the fixed fertilizer distribution chamber 24 and are tightly fitted to the inner wall of the fixed fertilizer distribution chamber 24. The fixed fertilizer distribution chamber 24 is rotatably mounted on the circular section of the ring application disc main shaft 10 via bearings 17. A rotating mounting ring 23 is rotatably mounted on the outer layer of the fixed fertilizer distribution chamber 24. The rotating mounting ring 23 has six through holes evenly distributed on it, and a mounting tube base 20 is coaxially mounted at each through hole. The other end of each mounting plate base 20 has an internally threaded mounting hole, which is threadedly connected to a ring application cylinder mounting tube 11. Inside the cylindrical installation tube 11, a soil-inserting ring cylinder 4 is coaxially mounted. A compression spring 14 is installed in the gap between the soil-inserting ring cylinder 4 and the ring cylinder installation tube 11. The two ends of the compression spring 14 are respectively fixed in the groove of the outer ring of the soil-inserting ring cylinder 4 and the groove of the inner ring of the ring cylinder installation tube 11. A sealing rubber ring 15 is installed in the mounting groove on the upper outer surface of the soil-inserting ring cylinder 4, and is in close contact with the inner wall of the ring cylinder installation tube 11 and the mounting tube base 20. One end of the support rod 16 passes through the slotted through hole on the ring cylinder installation tube 11 and is installed in the soil-inserting ring cylinder. On the cylinder 4, a roller 18 is mounted on the other end via a roller mounting pin 19, and forms a cam-roller engagement with the cam-shaped surface on the rear surface of the fixed fertilizer distribution bin 24. The ring application disc housing 5 is installed on the second hexagonal prism section on the left side of the ring application disc main shaft 10. Six through holes are evenly distributed along the circumference on the ring application disc housing 5, through which six sets of soil-entry ring application cylinders 4 pass. The ring application disc cover plate 6 is rotatably mounted on the rightmost end of the ring application disc main shaft 10 via a bearing 17. Shims 25 and fixing screws 26 are installed on the outermost ends of the ring application disc main shaft 10 to fix all components.

[0016] During operation, the frame 2 moves forward with the machine, and the bottommost soil-inserting ring cylinder 4 is inserted into the soil. As the machine moves forward, it gains rotational power from soil friction. With the rotation of the soil-inserting ring cylinder 4, the ring cylinder mounting tube 11, compression spring 14, sealing rubber ring 15, mounting tube base 20, rotating mounting ring 23, and ring-applying disc outer shell 5 all rotate. The ring-applying disc main shaft 10 gains rotational power under the action of the ring-applying disc outer shell 5, driving the fertilizer baffle mounting seat 22 fixed on the ring-applying disc main shaft 10 to rotate. This causes the six fertilizer baffles 21 mounted on the fertilizer baffle mounting seat 22 to rotate tightly against the inner wall of the fixed fertilizer distribution bin 24. Simultaneously with the rotation of the soil-inserting ring cylinder 4, the support rod 16 mounted on it drives the roller 18 to roll tightly against the cam behind the fixed fertilizer distribution bin 24. When the roller 18 rolls to the farthest point of the cam... At the resting end, the support rod 16 drives the soil-inserting ring cylinder 4 to extend out of the ring cylinder mounting tube 11; when the roller 18 rolls to the near resting end of the cam, the soil-inserting ring cylinder 4 is pressed back into the ring cylinder mounting tube 11 under the action of the compression spring 14. The granular fertilizer in the fertilizer box 1 is transported to the interior of the fixed fertilizer distribution chamber 24 through the fertilizer pipe 7 and the fertilizer inlet pipe 13. Under the rotation of the fertilizer baffle 21, it is moved in parts. When the granular fertilizer moves to the bottom of the fixed fertilizer distribution chamber 24, it falls through the through hole at the bottom of the fixed fertilizer distribution chamber 24 and the rotating mounting ring 23 onto the conical surface at the top of the soil-inserting ring cylinder 4, thus being evenly distributed circumferentially. At this time, the airflow output by the blower 9 enters the bottom cavity of the fixed fertilizer distribution chamber 24 through the air pipe 8 and the air inlet pipe 12, carrying the granular fertilizer that has moved to this point into the soil along the gap between the inner and outer walls of the soil-inserting ring cylinder 4. The six soil-inserting ring cylinders cycle in sequence to complete the potato ring planting and fertilization operation.

Claims

1. A pneumatic potato granulation fertilizer ring application apparatus, characterized by: The fertilizer tank (1), the ring application disc mounting frame (3) and the fan (9) are fixed on the frame (2), the two ends of the ring application disc main shaft (10) are rotatably installed on the ring application disc mounting frame (3), the two ends of the fertilizer pipe (7) are fixed at the bottom outlet of the fertilizer tank (1) and the inlet of the fertilizer inlet pipe (13), the two ends of the air pipe (8) are fixed at the air outlet of the fan (9) and the inlet of the air inlet pipe (12), the fertilizer blocking plate mounting seat (22) is cooperatively installed on the central hexagonal section of the ring application disc main shaft (10), the six fertilizer blocking plates (21) are rotatably and evenly distributed in the fixed fertilizer distribution bin (24) and closely contact with the inner wall of the fixed fertilizer distribution bin (24), the fixed fertilizer distribution bin (24) is rotatably installed on the circular section of the ring application disc main shaft (10) through the bearing (17), the rotating mounting ring (23) is rotatably installed on the outer layer of the fixed fertilizer distribution bin (24), the rotating mounting ring (23) is evenly provided with six through holes, one mounting pipe base (20) is coaxially installed at each through hole, the other end of each mounting pipe base (20) is provided with an internally threaded mounting hole and is in threaded connection with one ring application cylinder mounting pipe (11), the soil entering ring application cylinder (4) is coaxially installed in the ring application cylinder mounting pipe (11), the compression spring (14) is installed in the gap between the soil entering ring application cylinder (4) and the ring application cylinder mounting pipe (11), the two ends of the compression spring (14) are fixed in the grooves of the outer circle of the soil entering ring application cylinder (4) and the inner circle of the ring application cylinder mounting pipe (11), the sealing rubber ring (15) is installed in the mounting groove on the outer surface of the upper part of the soil entering ring application cylinder (4) and closely contacts with the inner wall of the ring application cylinder mounting pipe (11) and the mounting pipe base (20), one end of the supporting rod (16) passes through the slot-shaped through hole of the ring application cylinder mounting pipe (11) and is installed on the soil entering ring application cylinder (4), the other end of the supporting rod (16) is installed with the roller (18) through the roller mounting pin (19) and forms the cam-roller cooperation with the cam-shaped surface on the rear surface of the fixed fertilizer distribution bin (24), the ring application disc shell (5) is installed on the left second section hexagonal section of the ring application disc main shaft (10), the ring application disc shell (5) is provided with six through holes which are evenly distributed in the circumferential direction and are respectively passed through by six groups of soil entering ring application cylinders (4), the ring application disc cover plate (6) is rotatably installed on the most right end of the ring application disc main shaft (10) through the bearing (17), the gasket (25) and the fixed clamping wire (26) are installed at the outermost positions of the two ends of the ring application disc main shaft (10) to fix all parts.