Soil fertilizer spreading device

Abstract

The utility model belongs to soil fertilization technical field discloses soil fertilizer sowing device, including dolly, and set up fertilizer bucket on the dolly, the horizontal export pipe of setting in fertilizer bucket side bottom, installs flow regulating valve on the export pipe, and the export of flow regulating valve sets up the discharge pipe, the discharge pipe has horizontal part and inclined part, and the included angle of inclined part and horizontal plane is 45 60 DEG, the top cover of fertilizer bucket sets up stirring motor, and the bottom setting graphite bearing in fertilizer bucket, the output shaft of stirring motor sets up stirring axle, and the arc stirring blade of setting on stirring axle, and stirring axle sets up in graphite bearing, the blade of arc stirring blade presents arc bending, and the curvature radius is 0.3 0.5 times of fertilizer bucket radius, the concave surface of arc stirring blade faces the direction of rotation, and the inclination angle is 15 30 DEG. The utility model improves fertilization efficiency, and promotes the stability of discharge capacity.

Description

Technical Field

[0001] This utility model belongs to the field of soil fertilization technology, specifically a soil fertilizer spreading device. Background Technology

[0002] Traditional spreaders discharge fertilizer through fixed orifices, but fertilizers, especially compound fertilizers, are prone to clogging the orifices due to moisture absorption, clumping, or impurities, causing spreading interruptions. This requires manual unclogging, affecting the continuity of operations and reducing efficiency.

[0003] A soil fertilizer spreading device disclosed in CN218977306U includes a mounting column fixedly installed on the upper surface of a trolley. A screw is rotatably connected inside the mounting column, and a lifting rod is threadedly connected to the circumferential side of the screw. The upper end of the lifting rod is fixedly connected to a mounting plate, and a secondary gear is fixedly connected to the circumferential side of the screw. A first motor is fixedly installed on one side of the mounting column, and a main gear is fixedly connected to the output end of the first motor. A second motor is fixedly installed on the upper surface of the fertilizer box, and a rotating rod is fixedly connected to the output end of the second motor. Several stirring rods are fixedly connected to the circumferential side of the rotating rod. This device can increase the spraying height of the nozzle and stir the liquid fertilizer, but it cannot control the stability of fertilizer discharge, resulting in poor performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a soil fertilizer spreading device that improves fertilization efficiency and enhances the stability of output.

[0005] To solve the above technical problems, this utility model provides a soil fertilizer spreading device, including a trolley and a fertilizer tank mounted on the trolley. A horizontal outlet pipe is provided at the bottom side of the fertilizer tank, and a flow regulating valve is installed on the outlet pipe. A discharge pipe is provided at the outlet of the flow regulating valve. The discharge pipe has a horizontal part and an inclined part, with the inclined part inclined downwards at an angle of 45°-60° to the horizontal plane. A stirring motor is provided on the top cover of the fertilizer tank, and a graphite bearing is provided at the bottom inside the fertilizer tank. A stirring shaft is provided on the output shaft of the stirring motor, and an arc-shaped stirring blade is provided on the stirring shaft. The stirring shaft is located in the graphite bearing. The blades of the arc-shaped stirring blade are curved, with a radius of curvature of 0.3-0.5 times the radius of the fertilizer tank. The concave surface of the arc-shaped stirring blade faces the direction of rotation, with an inclination angle of 15°-30°.

[0006] By adopting the above technical solutions, including anti-clogging of the horizontal outlet pipe, self-lubrication of the graphite bearing, and optimized power of the arc-shaped stirring blades, the uniformity of fertilization, fertilization efficiency, and equipment reliability have been significantly improved. The flow regulating valve is installed on the horizontal outlet pipe to prevent the valve core from jamming due to gravity settling of granular fertilizer in the vertical pipe section. Combined with the fertilizer flow control of the flow regulating valve, the stability of the output is effectively improved.

[0007] Preferably, the flow regulating valve is a ball valve, butterfly valve, or throttle valve.

[0008] By adopting the above technical solutions, when applying granular fertilizers to plants, such as compound fertilizers and blended fertilizers, ball valves suitable for coarse flow regulation are used. When delivering fertilizers with large flow rates and low pressures to plants, such as organic fertilizers and compost, butterfly valves are used. When applying water-soluble fertilizers and liquid fertilizers to plants, throttling valves suitable for micro-flow regulation are used.

[0009] Preferably, a rubber damping pipe is installed between the outlet of the flow regulating valve and the discharge pipe, and the inner diameters of the flow regulating valve outlet, the rubber damping pipe and the discharge pipe are the same.

[0010] By adopting the above technical solutions, the spreading device will vibrate during operation, such as the trolley vibration. The rubber vibration damping tube can absorb the vibration and avoid pipeline fatigue fracture or loosening of the interface caused by hard connection.

[0011] Preferably, the outlet pipe and the flow regulating valve, the outlet of the flow regulating valve and the rubber damping pipe, and the rubber damping pipe and the discharge pipe are connected by flanges.

[0012] By adopting the above technical solutions, the outlet pipe, flow regulating valve, rubber vibration damping pipe and discharge pipe are connected by flanges, resulting in good sealing performance and preventing fertilizer leakage.

[0013] Preferably, the diameter of the discharge pipe is DN32-DN50.

[0014] By adopting the above technical solutions, when the fertilizer is granular, a discharge pipe with a diameter of DN32-DN50 is used to avoid granule breakage or sedimentation.

[0015] Preferably, the diameter of the discharge pipe is DN25-DN40.

[0016] By adopting the above technical solutions, when the fertilizer is in powder form, a discharge pipe with a diameter of DN25-DN40 is used to prevent pipe wear.

[0017] Preferably, the diameter of the discharge pipe is DN15-DN25.

[0018] By adopting the above technical solutions, when the fertilizer is liquid fertilizer, a discharge pipe with a diameter of DN15-DN25 is used to avoid turbulent flow and heat generation.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model significantly improves the uniformity of fertilization, fertilization efficiency and equipment reliability by using horizontal outlet pipe anti-clogging, graphite bearing self-lubrication and arc-shaped stirring blade dynamic optimization.

[0020] 2. The flow regulating valve of this utility model is installed on the horizontal outlet pipe to avoid the valve core from getting stuck due to gravity settling of granular fertilizer in the vertical pipe section. Combined with the fertilizer flow control of the flow regulating valve, the stability of the output is effectively improved.

[0021] 3. The radius of curvature of the arc-shaped stirring blade of this utility model is 0.3-0.5 times the radius of the fertilizer tank, forming an enveloping stirring flow field, breaking the bridging structure between fertilizer particles, preventing clumping, and the concave surface of the arc-shaped stirring blade faces the direction of rotation and is tilted at 15°-30° to generate axial thrust, promote the exchange of fertilizer between upper and lower layers, and improve stirring efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the arc-shaped stirring blade of this utility model; Figure 4 A schematic diagram showing the installation of a rubber vibration damping pipe between the outlet of the flow regulating valve and the discharge pipe of this utility model.

[0023] Drawing numbers: 1. Trolley, 2. Fertilizer tank, 3. Outlet pipe, 4. Flow regulating valve, 5. Discharge pipe, 6. Horizontal section, 7. Inclined section, 8. Top cover, 9. Agitator motor, 10. Graphite bearing, 11. Agitator shaft, 12. Arc-shaped agitator blade, 13. Rubber vibration damping pipe, 14. Flange, 15. Inlet. Detailed Implementation

[0024] like Figure 1 As shown, the soil fertilizer spreading device includes a trolley 1 and a fertilizer tank 2 mounted on the trolley 1. A feed inlet 15 is located at the top of one side of the fertilizer tank 2. A horizontal outlet pipe 3 is located at the bottom of the other side of the fertilizer tank 2, and a flow regulating valve 4 is installed on the outlet pipe 3. The flow regulating valve 4, installed on the horizontal outlet pipe 3, prevents the valve core from becoming stuck due to gravity settling of granular fertilizer in the vertical pipe section. Combined with the fertilizer flow control of the flow regulating valve 4, the stability of the output is effectively improved. A discharge pipe 5 is located at the outlet of the flow regulating valve 4; the discharge pipe 5 has a horizontal section 6 and an inclined section 7. The inclined section 7 slopes downwards, and the angle between the inclined section 7 and the horizontal plane is 45°-60°, utilizing gravity to assist spreading. A stirring motor 9 is installed on the top cover 8 of the fertilizer tank 2.

[0025] like Figure 2 As shown, a graphite bearing 10 is installed at the bottom of the fertilizer tank 2. A stirring shaft 11 is installed on the output shaft of the stirring motor 9, and an arc-shaped stirring blade 12 is installed on the stirring shaft 11. The stirring shaft 11 is installed in the graphite bearing 10. The graphite bearing 10 does not require additional lubrication, which avoids grease contamination of the fertilizer, reduces the rotational resistance of the stirring shaft 11, and improves the rotational stability of the stirring shaft 11.

[0026] like Figure 3 As shown, the radius of curvature of the arc-shaped stirring blade 12 is 0.3-0.5 times the radius of the fertilizer tank 2. The blades of the arc-shaped stirring blade 12 are curved in an arc shape, with the concave surface facing the direction of rotation and an inclination angle of 15°-30°, resulting in a large contact area. The radius of curvature of the arc-shaped stirring blade 12, being 0.3-0.5 times the radius of the fertilizer tank 2, forms a wrapping stirring flow field, breaking the bridging structure between fertilizer particles and preventing agglomeration. The concave surface of the arc-shaped stirring blade 12, facing the direction of rotation and inclination at 15°-30°, generates axial thrust, promoting the exchange of fertilizer between upper and lower layers and improving stirring efficiency. This application significantly improves fertilization uniformity, fertilization efficiency, and equipment reliability through anti-clogging of the horizontal outlet pipe 3, self-lubrication of the graphite bearing 10, and power optimization of the arc-shaped stirring blade 12.

[0027] The flow regulating valve 4 can be a ball valve, butterfly valve, or throttle valve. When applying granular fertilizers to plants, such as compound fertilizers or blended fertilizers, a ball valve suitable for coarse flow regulation is used. When delivering fertilizers with large flow rates and low pressures to plants, such as organic fertilizers or compost, a butterfly valve is used. When applying water-soluble fertilizers or liquid fertilizers to plants, a throttle valve suitable for micro-flow regulation is used.

[0028] like Figure 4 As shown, a rubber vibration damping pipe 13 is installed between the outlet of the flow regulating valve 4 and the discharge pipe 5. The inner diameters of the outlet of the flow regulating valve 4, the rubber vibration damping pipe 13, and the discharge pipe 5 are the same. The spreading device will vibrate during operation, such as the trolley 1. The rubber vibration damping pipe 13 can absorb the vibration and avoid fatigue fracture of the pipeline or loosening of the interface caused by hard connection.

[0029] The outlet pipe 3 and the flow regulating valve 4, the outlet of the flow regulating valve 4 and the rubber vibration damping pipe 13, and the rubber vibration damping pipe 13 and the discharge pipe 5 are connected by flange 14. The connection of the outlet pipe 3, the flow regulating valve 4, the rubber vibration damping pipe 13 and the discharge pipe 5 by flange 14 has good sealing performance and fertilizer is not easy to leak.

[0030] The diameter of the discharge pipe 5 is DN32-DN50. When the fertilizer is granular fertilizer, the discharge pipe 5 with a diameter of DN32-DN50 is used to avoid granule breakage or sedimentation.

[0031] The diameter of the discharge pipe 5 is DN25-DN40. When the fertilizer is in powder form, the discharge pipe 5 with a diameter of DN25-DN40 is used to prevent pipe wear.

[0032] The diameter of the discharge pipe 5 is DN15-DN25. When the fertilizer is liquid fertilizer, a discharge pipe 5 with a diameter of DN15-DN25 is used to avoid turbulent flow and heat generation.

[0033] During operation, fertilizer is added to fertilizer tank 2 through inlet 15. The stirring motor 9 is started to drive the arc-shaped stirring blades 12 to stir the fertilizer. The flow control valve 4 is adjusted to control the fertilizer output flow rate. The trolley 1 is moved along the plant row spacing, aligning the outlet pipe 5 with the plant roots for fertilization. This improves the uniformity and dissolution of the fertilizer reaching the plant roots, enhancing fertilizer absorption and increasing fertilization efficiency.

[0034] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A soil fertilizer spreading device, comprising a trolley (1) and a fertilizer tank (2) mounted on the trolley (1), characterized in that: The fertilizer tank (2) has a horizontal outlet pipe (3) at the bottom side, and a flow regulating valve (4) is installed on the outlet pipe (3). The outlet of the flow regulating valve (4) is provided with a discharge pipe (5). The discharge pipe (5) has a horizontal part (6) and an inclined part (7). The inclined part (7) is inclined downward, and the angle between the inclined part (7) and the horizontal plane is 45°-60°. The top cover (8) of the fertilizer tank (2) is provided with a stirring motor (9), and the bottom of the fertilizer tank (2) is provided with a graphite bearing (10). The output shaft of the stirring motor (9) is provided with a stirring shaft (11), and the stirring shaft (11) is provided with an arc-shaped stirring blade (12). The stirring shaft (11) is located in the graphite bearing (10). The blade of the arc-shaped stirring blade (12) is curved in an arc shape, and the radius of curvature is 0.3-0.5 times the radius of the fertilizer tank (2). The concave surface of the arc-shaped stirring blade (12) faces the direction of rotation, and the inclination angle is 15°-30°.

2. The soil fertilizer spreading device according to claim 1, characterized in that: The flow regulating valve (4) is a ball valve, butterfly valve, or throttle valve.

3. The soil fertilizer spreading device according to claim 1, characterized in that: A rubber damping pipe (13) is provided between the outlet of the flow regulating valve (4) and the discharge pipe (5), and the inner diameters of the outlet of the flow regulating valve (4), the rubber damping pipe (13) and the discharge pipe (5) are the same.

4. The soil fertilizer spreading device according to claim 3, characterized in that: The outlet pipe (3) and the flow regulating valve (4) are connected by a flange (14), the outlet of the flow regulating valve (4) and the rubber damping pipe (13), and the rubber damping pipe (13) and the discharge pipe (5).

5. The soil fertilizer spreading device according to claim 1, characterized in that: The diameter of the discharge pipe (5) is DN32-DN50.

6. The soil fertilizer spreading device according to claim 1, characterized in that: The diameter of the discharge pipe (5) is DN25-DN40.

7. The soil fertilizer spreading device according to claim 1, characterized in that: The diameter of the discharge pipe (5) is DN15-DN25.

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