A fertilizer stabilizing distributor and fertilizing equipment

Abstract

The present invention provides a fertilizer stabilizing distributor and fertilizer application equipment, and relates to the technical field of agricultural machinery and equipment. The fertilizer stabilizing distributor includes a buffer box and a distributor body. The buffer box is provided with an inlet and an outlet. The inlet of the buffer box is connected to the fertilizer discharge port of the tank body through the fertilizer main pipe; the distributor body includes a distributor cavity, a rotating shaft, a rotary drive device and a fluid controller. The distributor cavity is provided below the buffer box and is located on the upper part of the frame component; the top of the distributor cavity is provided with an inlet, and the inlet of the distributor cavity is connected to the outlet of the buffer box. By arranging a cutting knife on at least one side of the spiral blade, the cutting knife is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity, so that the fertilizer stabilizing distributor can be used for liquid organic fertilizers with complex physical properties. The liquid organic fertilizer is evenly output from the outlet of the distributor cavity through the rotation of the spiral blade.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery and equipment, and in particular to a fertilizer stabilizing distributor and fertilizing equipment. Background Art

[0002] my country produces 127 million tons of wheat straw annually. Biogas projects include straw as a feedstock for anaerobic fermentation, which has, to a certain extent, promoted its utilization. Biogas residues and liquid manure contain nutrients necessary for plant growth, are rich in organic matter that improves soil quality, and are easily absorbed by plants using small molecules. They offer advantages such as ease of fertilization and mechanized application. Therefore, their use as fertilizer is currently the primary method for utilizing biogas residues and liquid manure. However, several issues remain. Firstly, the presence of fibrous solids and gravel in the manure liquid can easily clog the manure outlet. Secondly, there is a lack of liquid fertilizer distributors that efficiently and evenly distribute the fertilizer and ensure stable discharge. Summary of the Invention

[0003] The invention provides a fertilizer stable distributor, which is used to solve the problems in the prior art that a fertilizer discharge port is easily blocked and the liquid fertilizer distributor has poor stability.

[0004] The present invention provides a fertilizer stabilizing distributor, comprising:

[0005] A buffer box is provided with an inlet and an outlet, and the inlet of the buffer box is connected to the fertilizer discharge port of the tank body through the fertilizer main pipe;

[0006] The distributor body includes a distributor cavity, a rotating shaft, a rotating drive device and a fluid controller. The distributor cavity is arranged below the buffer tank and is located on the upper part of the frame component. The top of the distributor cavity is provided with an inlet, and the inlet of the distributor cavity is connected to the outlet of the buffer tank. The bottom of the distributor cavity is provided with multiple outlets. The multiple outlets of the distributor cavity are arranged at intervals perpendicular to the moving direction of the tank body. The outlet of the distributor cavity is provided with a filter screen. Both ends of the distributor cavity are provided with connecting components. The rotating shaft is provided inside the distributor cavity, and the two ends of the rotating shaft correspond one-to-one to the two connecting components. Rotational connection, the rotary drive device is connected to one end of the rotating shaft and to the distributor cavity; the outer peripheral surface of the rotating shaft is provided with a spiral blade extending spirally along the length direction of the rotating shaft, and the edge of the spiral blade is provided with a cutting knife, and the cutting knife is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity; the inlet of the fluid controller is connected to the outlet of the distributor cavity, and the outlet of the fluid controller is connected to the upper port of the fertilizer pipe through a fertilizer hose, and the fluid controller is used to provide a gas-liquid buffer zone during the fertilizer discharge process at the outlet of the distributor cavity, thereby reducing the pulsation impact caused by the airflow.

[0007] According to a fertilizer stabilizing distributor provided by the present invention, the cutting blade comprises:

[0008] a base connected to the spiral blade;

[0009] A plurality of blades are arranged at intervals on a side of the base away from the spiral blade, a cutting edge is formed on a side of the blade away from the base, and a cutting edge slope is formed between the cutting edge and the side of the blade.

[0010] According to the fertilizer stabilizing distributor provided by the present invention, the length and width of each blade are equal, and the distance between two adjacent blades is equal.

[0011] According to the fertilizer stabilizing distributor provided by the present invention, the cutting edge slope is 25-30°.

[0012] According to a fertilizer stabilizing distributor provided by the present invention, a plurality of flow channel units connected in sequence are arranged inside the fluid controller, the cross-sectional area of ​​the flow channel unit gradually decreases from top to bottom, an arc-shaped guide surface is formed on the upper part of the side wall of the flow channel unit, the arc-shaped guide surface extends to the inlet of the flow channel unit, a guide block is arranged inside the flow channel unit, and the guide block is spaced apart from two opposite side walls of the flow channel unit.

[0013] According to a fertilizer stabilizing distributor provided by the present invention, the connecting assembly comprises:

[0014] Connecting flanges, both ends of the distributor cavity are provided with fixed flanges, the connecting flanges are connected to the corresponding fixed flanges, and the connecting flanges and the fixed flanges are both provided with axial holes;

[0015] The bearing seat is arranged on the side of the connecting flange away from the fixed flange. The two ends of the rotating shaft pass through the corresponding fixed flange and the connecting flange and then rotate with the corresponding bearing seat through bearings.

[0016] According to a fertilizer stabilizing distributor provided by the present invention, the connecting assembly further comprises:

[0017] A sealing gasket is provided between the fixing flange and the connecting flange to ensure a sealing fit between the fixing flange and the connecting flange.

[0018] A fertilizer stabilizing distributor provided by the present invention further comprises:

[0019] A residue collection box is connected to the fixed flange at one end of the distributor cavity away from the rotary drive device. The fixed flange at one end of the distributor cavity away from the rotary drive device and the connecting flange are both provided with a residue discharge outlet, and the residue discharge outlet is connected to the residue collection box.

[0020] According to a fertilizer stabilizing distributor provided by the present invention, a mounting port is provided at the bottom of the residue collecting box, and the mounting port is provided with a bottom cover detachably connected to the residue collecting box.

[0021] The present invention also provides a fertilizing device, comprising a frame, a tank, an air exchange box, a pressure pump device and a fertilizer discharge device, wherein the fertilizer discharge device comprises any of the above-mentioned fertilizer stabilizing distributors.

[0022] The fertilizer stabilizing distributor provided by the present invention has a cutting blade provided on at least one side of a spiral blade, and uses the cutting blade to cut solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity. The fertilizer stabilizing distributor is suitable for liquid organic fertilizer with complex physical properties. The liquid organic fertilizer is evenly output from the outlet of the distributor cavity through the rotation of the spiral blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is one of the three-dimensional structural schematic diagrams of the fertilizing equipment provided by the present invention.

[0025] Figure 2 This is the second schematic diagram of the three-dimensional structure of the fertilizing equipment provided by the present invention.

[0026] Figure 3 yes Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the tank body provided by the present invention.

[0028] Figure 5 It is a schematic diagram of the explosion structure of the fertilizer stabilizing distributor provided by the present invention.

[0029] Figure 6 It is a structural schematic diagram of the rotating shaft and spiral blades provided by the present invention.

[0030] Figure 7 yes Figure 6 Schematic diagram of the local enlarged structure at point B in the middle.

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the cutting blade provided by the present invention.

[0032] Figure 9 It is a side structural schematic diagram of the cutting blade provided by the present invention.

[0033] Figure 10 It is a schematic cross-sectional structural diagram of the fluid controller provided by the present invention.

[0034] Reference numerals:

[0035] 100, frame; 200, tank; 210, first control valve; 220, second control valve; 230, tapered straight nozzle; 240, curved baffle; 250, third control valve; 260, anti-overflow valve; 300, ventilation box; 310, pressure sensor; 400, pressure pump device; 500, fertilizer discharge device; 501, frame component; 510, fertilizer stabilizing distributor; 511, buffer tank; 512, distributor cavity; 513, rotating shaft; 514, rotary drive device; 515, fluid controller; 516, spiral blade; 517, cutting knife; 518, base; 519, blade; 520, cutting edge; 521, flow channel unit; 522, guide Block; 523, connecting flange; 524, fixing flange; 525, bearing seat; 526, bearing; 528, residue collection box; 529, residue discharge outlet; 530, furrow opener; 531, fertilizer pipe; 532, layering plate; 533, first fertilizer hole; 534, second fertilizer hole; 535, fertilizer inlet connecting pipe; 536, connecting flange; 537, fixing flange; 540, pressing roller component; 541, pressing roller shaft; 542, soil-breaking blade; 543, pressing rod; 544, permanent magnet; 545, magnetic pole shoe; 546, magnetic sleeve; 550, pressing roller assembly; 560, drive assembly; 561, connecting plate; 562, linear drive component. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0039] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0041] like Figure 5As shown, the fertilizer stabilizing distributor 510 includes a buffer box 511 and a distributor body. The buffer box 511 is provided with an inlet and an outlet. The inlet of the buffer box 511 is connected to the fertilizer discharge port of the tank body 200 through the fertilization main pipe. The distributor body includes a distributor cavity 512, a rotating shaft 513, a rotating drive device 514 and a fluid controller 515. The distributor cavity 512 is arranged below the buffer tank 511 and is located on the upper part of the frame component 501; an inlet is provided at the top of the distributor cavity 512, and the inlet of the distributor cavity 512 is connected to the outlet of the buffer tank 511; a plurality of outlets are provided at the bottom of the distributor cavity 512, and the plurality of outlets of the distributor cavity 512 are arranged at intervals along a moving direction perpendicular to the tank body 200, and a filter is provided at the outlet of the distributor cavity 512; connecting components are provided at both ends of the distributor cavity 512, and the rotating shaft 513 is provided inside the distributor cavity 512, and the two ends of the rotating shaft 513 are rotatably connected to the two connecting components in a one-to-one manner, and the rotating drive device 514 is connected to one end of the rotating shaft 513 and is connected to the distributor cavity 512. The rotating drive device 514 is a motor or a combination of a motor and a reducer. The outer peripheral surface of the rotating shaft 513 is provided with a spiral blade 516 extending spirally along the length direction of the rotating shaft 513, and the edge of the spiral blade 516 is provided with a cutting knife 517, which is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity 512; the inlet of the fluid controller 515 is connected to the outlet of the distributor cavity 512, and the outlet of the fluid controller 515 is connected to the upper port of the fertilizer pipe 531 through a fertilizer hose. The fluid controller 515 is used to provide a gas-liquid buffer zone during the fertilizer discharge process at the outlet of the distributor cavity 512 to reduce the pulsation impact caused by the airflow.

[0042] The fertilizer stabilizing distributor 510 provided by the present invention has a cutting blade 517 provided on at least one side of the spiral blade 516, and uses the cutting blade 517 to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity 512. The fertilizer stabilizing distributor 510 is suitable for liquid organic fertilizer with complex physical properties. The liquid organic fertilizer is evenly output from the outlet of the distributor cavity 512 through the rotation of the spiral blade 516.

[0043] In one embodiment of the present invention, Figure 5 As shown, the buffer box 511 is a rectangular box. The inlet of the buffer box 511 is located at the top of the buffer box 511. A fertilizer inlet connecting pipe 535 is provided at the inlet of the buffer box 511. Specifically, the fertilizer inlet connecting pipe 535 is provided with a connecting flange 536. The inlet of the buffer box 511 is provided with a fixing flange 537. The fertilizer inlet connecting pipe 535 is connected to the fixing flange 537 via the connecting flange 536. Furthermore, a sealing gasket is provided between the connecting flange 536 and the fixing flange 537.

[0044] When spreading a single type of liquid organic fertilizer, the buffer box 511 is provided with one inlet; when spreading two types of liquid organic fertilizers, the buffer box 511 is provided with two inlets so that the two types of liquid organic fertilizers can be mixed in the buffer box 511; if more than two types of fertilizers are applied, more inlets can be provided according to actual conditions.

[0045] In one embodiment of the present invention, Figure 8 and 9 As shown, the cutting knife 517 includes a base 518 and a plurality of blades 519. The base 518 is connected to the spiral blade 516. The plurality of blades 519 are spaced apart on the side of the base 518 away from the spiral blade 516. A cutting edge 520 is formed on the side of the blade 519 away from the base 518. The cutting edge 520 is tilted and forms an acute angle with the base 518. A cutting edge slope is formed between the cutting edge 520 and the side of the blade 519, that is, Figure 9 α in .

[0046] In one embodiment of the present invention, the length and width of each blade 519 are equal. It should be noted that the length of the blade 519 is Figure 9 The width of the blade 519 is Figure 9 The distance between two adjacent blades 519 is equal, and the distance between two adjacent blades 519 is determined according to actual needs.

[0047] When applying biogas slurry, to prevent excessive accumulation of straw, which could lead to blockage of the outlet of the distributor chamber 512, and to reduce the length of the straw, which is more conducive to promoting decomposition and improving the quality of the straw after entering the soil, the cutting blade 517 of the spiral blade 516 is specially designed. The cutting blade 517 is made of 65Mn, a high-strength, hard, and elastic material. After extensive experiments, it was determined that the optimal cutting angle range for straw-like materials is 25-30°. Therefore, in this embodiment, the cutting edge angle is set to 25-30°, preferably 28°. Furthermore, the edge of the spiral blade 516 is provided with a spiral cutting groove, and the base 518 is embedded in the spiral cutting groove. The cutting process of the cutting blade 517 on solid materials such as straw is a fulcrum cutting process. Therefore, the instantaneous speed of the cutting blade 517 in contact with the straw does not need to be too high to ensure that the cutting blade 517 fully cuts the straw, and the appropriate rotation speed of the rotating shaft 513 is matched to achieve the cutting and crushing of solid materials such as straw.

[0048] In one embodiment of the present invention, the fluid controller 515 is provided with a plurality of flow channel units 521 connected in sequence, and the cross-sectional area of ​​the flow channel unit 521 gradually decreases from top to bottom. Specifically, Figure 10 As shown, the cross-sectional area on the right side of the flow channel unit 521 is larger than the cross-sectional area on the left side. An arc-shaped guide surface is formed on the upper portion of the side wall of the flow channel unit 521. The arc-shaped guide surface extends to the inlet of the flow channel unit 521. The arc-shaped guide surfaces of the even-numbered flow channel units 521 are located on the same side, and the arc-shaped guide surfaces of the odd-numbered flow channel units 521 are located on the same side. Specifically, the arc-shaped guide surface of the first flow channel unit 521 is located on the upper side, the arc-shaped guide surface of the second flow channel unit 521 is located on the lower side, the arc-shaped guide surface of the third flow channel unit 521 is located on the upper side, and the arc-shaped guide surface of the fourth flow channel unit 521 is located on the lower side. A guide block 522 is provided inside the flow channel unit 521. The guide block 522 is in the shape of an elongated strip. The guide block 522 is spaced apart from the two opposite side walls of the flow channel unit 521. In this way, flow channels are formed on both sides of the guide block 522, connecting the inlet and outlet of the flow channel unit 521.

[0049] When the first control valve 210 of the tank body 200 is opened to discharge fertilizer, because the pipeline connecting the tank body 200 to the fertilizer stabilizing distributor 510 contains gas, when the liquid organic fertilizer flows rapidly inside the pipeline, the gas in the pipe will form instantaneous pressure pulsation at the outlet of the distributor cavity 512 due to the high-speed pushing effect of the fluid, which will cause the fertilizer hose to swing disorderly. Long-term swinging can easily cause the connection of the fertilizer hose to loosen, resulting in unnecessary maintenance workload. Therefore, it is necessary to install a fluid controller 515 to provide a gas-liquid buffer zone for the discharge of fertilizer at the outlet of the distributor cavity 512 to reduce the pulsation impact caused by the airflow.

[0050] When liquid organic fertilizer enters the inlet of the fluid controller 515, it is guided by the curved guide surface and enters the inclined straight channel on the upper side of the guide block 522, and then enters the next flow channel unit 521. This flow channel design allows the liquid organic fertilizer to pass smoothly through each flow channel unit 521 without encountering significant resistance. When the liquid organic fertilizer flows in the reverse direction, it will encounter significant resistance due to the interaction between the guide block 522 and the curved guide surface.

[0051] The unique feature of fluid controller 515 is that it does not use a traditional switch component to control the flow rate. Instead, it relies on the principles of fluid dynamics and the ingenious design of its internal structure to achieve unidirectional conduction, thereby achieving stable fluid flow. This design not only improves the efficiency of fluid flow, but also increases the reliability and durability of the device. Fluid controller 515 acts as a buffer between the outlet of distributor cavity 512 and the fertilizer hose, ensuring a smooth flow of liquid organic fertilizer. It does not splash around when flowing into the soil, which would affect the uniform distribution of nutrients in the soil. This improves the stability of the outlet of distributor cavity 512 and reduces the pressure pulsation impact at the fertilizer outlet.

[0052] Furthermore, a soil nutrient monitoring and feedback device is installed at the front end of the tanker truck, and a flow control device is provided at the outlet of the fluid controller 515. The soil nutrient monitoring and feedback device is electrically connected to the flow control device. The flow control device can be an electronic flow control valve or a combination of a signal receiving controller and a flow control device. While the tanker truck is moving, it can calculate the required amount of fertilizer for the area based on the soil nutrient status. The flow control device receives fertilizer dosage instructions from the soil nutrient monitoring and feedback device in real time and automatically adjusts the outlet size according to the fertilizer dosage instructions, achieving automatic fertilization and precise control of fertilizer dosage.

[0053] In one embodiment of the present invention, Figure 5 As shown, the connection assembly includes a connecting flange 523 and a bearing seat 525. A fixing flange 524 is provided at each end of the distributor chamber 512. The distributor chamber 512 and the fixing flange 524 are welded together. The connecting flange 523 and the corresponding fixing flange 524 are bolted together. Both the connecting flange 523 and the fixing flange 524 are provided with an axial hole. The bearing seat 525 is provided on the side of the connecting flange 523 facing away from the fixing flange 524. The bearing seat 525 and the connecting flange 523 are bolted together. The two ends of the rotating shaft 513 pass through the corresponding fixing flange 524 and the connecting flange 523, and then rotate with the corresponding bearing seat 525 through bearings 526.

[0054] In one embodiment of the present invention, the connection assembly further includes a sealing gasket, which is disposed between the fixed flange 524 and the connecting flange 523 to ensure a sealed fit between the fixed flange 524 and the connecting flange 523. The sealing gasket is also provided with an axial hole to allow the rotating shaft 513 to pass through.

[0055] In one embodiment of the present invention, Figure 5As shown, the fertilizer stabilizing distributor 510 further includes a residue collection box 528 connected to a fixed flange 524 at the end of the distributor chamber 512 remote from the rotary drive device 514. Both the fixed flange 524 and the connecting flange 523 at the end of the distributor chamber 512 remote from the rotary drive device 514 are provided with a residue discharge outlet 529, which is in communication with the residue collection box 528. As the rotating shaft 513 rotates and moves axially along the rotating shaft 513, fibrous materials, stones, and the like in the liquid organic fertilizer pass through the cutting blades 517, which cut the fibrous materials and crush the stones. Some of the cut fibrous materials and small stones pass through the filter screen and flow into the field along the pipeline. Other solids that do not pass through the filter move axially along the rotating shaft 513 to the residue discharge outlet 529, pass through the residue discharge outlet 529, and fall into the residue collection box 528 through the collection box inlet. Furthermore, since the bearing seat 525 of the residue collection box 528 is located inside the residue collection box 528, in order to prevent the bearing seat 525 from rusting, a partition plate is provided inside the residue collection box 528 to separate the bearing seat 525 from the liquid organic fertilizer.

[0056] In one embodiment of the present invention, the bottom of the debris collection box 528 is provided with a mounting port, which is provided with a bottom cover that is detachably connected to the debris collection box 528. Specifically, the debris collection box 528 and the bottom cover are connected by bolts. Preferably, a sealing gasket is provided between the debris collection box 528 and the bottom cover.

[0057] In a preferred embodiment of the present invention, Figure 6 and Figure 7 As shown, the distributor body also includes a permanent magnet 544, a magnetic pole shoe 545 and a magnetic sleeve 546. The permanent magnet 544 is arranged on the inner surface of the inner ring of the bearing 526. Preferably, the inner surface of the inner ring of the bearing 526 is provided with an annular groove, and the annular permanent magnet 544 is embedded in the annular groove. The magnetic pole shoe 545 is arranged on one side of the permanent magnet 544. The magnetic sleeve 546 is sleeved on the end of the rotating shaft 513, and the permanent magnet 544 is sleeved on the outer periphery of the magnetic sleeve 546. An annular gap is formed between the magnetic sleeve 546 and the permanent magnet 544. There is magnetic fluid in the annular gap. A rotating magnetic field loop is formed between the magnetic sleeve 546 and the permanent magnet 544, which firmly adsorbs the magnetic fluid in the annular gap in the annular gap, forming a fluid ring similar to an O-ring, filling the gap with the magnetic fluid and completely blocking it, thereby achieving the ultimate sealing purpose. The use of the above-mentioned magnetic sealing structure has the following advantages:

[0058] First, magnetic fluid seals offer exceptional sealing performance, achieving virtually leak-free sealing. This highly stable sealing ensures stable operation of the liquid fertilizer dispenser under extreme operating conditions. In contrast, traditional seals typically have higher leakage rates, particularly under high pressure, high speed, or extreme operating conditions, which can compromise sealing performance.

[0059] Secondly, because there's no direct contact between the moving and stationary parts, magnetic fluid seals avoid mechanical wear, resulting in a long service life and simple routine maintenance. Regular replenishment of the magnetic fluid is usually sufficient to restore the seal to its original state, eliminating the need for complex repairs. Traditional seals often experience wear and aging over time, leading to a decrease in sealing performance. Therefore, regular replacement of seals and necessary maintenance and servicing are necessary.

[0060] Third, magnetic fluid seals adapt to a wide range of speeds, allowing them to operate at rest, at low speeds, or at high speeds. Furthermore, they are highly adaptable, capable of handling diverse media, temperatures, and pressures. Traditional seals, on the other hand, are less adaptable and flexible, potentially requiring the replacement of different seal types to meet varying operating conditions.

[0061] Fourthly, magnetic fluid seals do not generate mechanical friction noise or heat during operation, which helps maintain stable operation and extend the service life of the equipment. Traditional seals may generate certain noise and heat when operating at high speeds or under high pressure, which may have a certain impact on the operating stability and service life of the equipment.

[0062] The present invention further provides a fertilizer application device, which includes a frame 100, a tank body 200, a ventilation box 300, a pressure pump device 400 and a fertilizer discharge device 500. The fertilizer discharge device 500 includes the fertilizer stabilizing distributor 510 described in any of the above embodiments.

[0063] like Figures 1 to 3 As shown, a wheel is provided at the bottom of the vehicle frame 100; a tank body 200 is mounted on the vehicle frame 100 and is provided with an air inlet port. A ventilation box 300 is provided with an air inlet and an air outlet, with the air outlet of the ventilation box 300 communicating with the air inlet port of the tank body 200. A pressure pump device 400 is connected to the air inlet of the ventilation box 300 via an air pipeline. The pressure pump device 400 is used to change the pressure inside the tank body 200 to allow liquid organic fertilizer to flow into or out of the tank body 200.

[0064] The fertilizer discharging device 500 includes a frame component 501, a fertilizer stabilizing distributor 510, a plurality of furrow openers 530 and a pressing roller component 540. The frame component 501 is arranged along a moving direction perpendicular to the tank body 200. The frame component 501 is connected to the vehicle frame 100 or the tank body 200. The fertilizer stabilizing distributor 510 is arranged at the upper part of the frame component 501. The inlet of the fertilizer stabilizing distributor 510 is connected to the fertilizer discharge port of the tank body 200 through the fertilization main pipe.

[0065] A plurality of furrow openers 530 are spaced apart at the bottom of the frame member 501 along a direction perpendicular to the movement of the tank body 200. A layered fertilization mechanism is disposed behind the furrow openers 530. The layered fertilization mechanism comprises a fertilizer pipe 531 and a layering plate 532. The fertilizer pipe 531 is connected to the furrow openers 530. The upper end of the fertilizer pipe 531 communicates with the outlet of the fertilizer stabilizer 510 via a fertilizer hose. A first fertilizer hole 533 is disposed at the lower end of the fertilizer pipe 531, and a second fertilizer hole 534 is disposed on the sidewall of the fertilizer pipe 531. The layering plate 532 is mounted in the second fertilizer hole 534 and hingedly connected to the fertilizer pipe 531. The layering plate 532 is partially located inside and partially outside the fertilizer pipe 531. The fertilizer flow rate output from the first and second fertilizer holes 533 and 534 can be varied by changing the angle between the layering plate 532 and the horizontal plane.

[0066] Specifically, if Figure 3 As shown, when the organic fertilizer inside the fertilizer pipe 531 flows downward, it is blocked by the layer plate 532, and some of the organic fertilizer flows out of the second fertilizer hole 534, while the other part flows out of the first fertilizer hole 533. When the layer plate 532 rotates downward, the flow channel inside the fertilizer pipe 531 decreases, and most of the organic fertilizer flows out of the second fertilizer hole 534, and a small amount flows out of the first fertilizer hole 533. When the layer plate 532 rotates upward, the flow channel inside the fertilizer pipe 531 increases, and a small amount of organic fertilizer flows out of the second fertilizer hole 534, while most of it flows out of the first fertilizer hole 533. The liquid organic fertilizer flowing out of the first fertilizer hole 533 enters the deep soil layer, while the liquid organic fertilizer flowing out of the second fertilizer hole 534 enters the shallow soil layer. The pressing roller assembly 540 is arranged behind the furrow opener 530 and is hinged to the frame assembly 501.

[0067] The fertilizing equipment provided by the present invention can change the fertilizer flow rate output by the first fertilizing hole 533 and the second fertilizing hole 534 by changing the angle between the stratification plate 532 and the horizontal plane; single or multiple liquid organic fertilizers can be efficiently and evenly distributed to each fertilizer outlet hole, realizing layered fertilizer return to the field, and promoting the orderly distribution of nutrients in the liquid fertilizer to each layer of soil.

[0068] The fertilizing equipment provided by the present invention has high working efficiency and can complete a series of operations such as ditching, fertilizing, and compacting soil, thereby reducing the volatilization of liquid organic fertilizer and being able to mix the liquid organic fertilizer with the soil to a certain extent; it realizes the return of liquid organic fertilizer to the field and guides green planting, and plays a positive role in optimizing soil quality, reducing costs, and promoting environmental protection.

[0069] In one embodiment of the present invention, Figure 1 As shown, the frame 100 is used to carry the tank 200 and the fertilizer discharging device 500. In order to reduce the weight of the frame 100, the frame 100 adopts a hollow design. A tractor traction hitch is provided at the front end of the frame 100 to facilitate connection with the tractor.

[0070] In one embodiment of the present invention, Figure 1 As shown, the fertilizer outlet of the tank body 200 is set at the top of the tank body 200. The fertilizer outlet of the tank body 200 is provided with a first control valve 210, and the fertilizer main pipe is connected to the first control valve 210. The opening and closing of the fertilizer outlet can be controlled by the first control valve 210.

[0071] In one embodiment of the present invention, Figure 4 As shown, a fertilizer outlet is provided at the lower portion of the tank body 200 near one end of the fertilizer discharging device 500. A second control valve 220 is provided at the fertilizer outlet. A tapered straight nozzle 230 is provided at the outlet of the second control valve 220. The inlet of the tapered straight nozzle 230 is connected to the outlet of the second control valve 220. The inner diameter of the tapered straight nozzle 230 gradually decreases from the inlet of the tapered straight nozzle 230 to the outlet of the tapered straight nozzle 230. A curved baffle 240 is provided at the outlet of the tapered straight nozzle 230, connected to the second control valve 220. The curved baffle 240 is tilted downward at a certain angle toward the tapered straight nozzle 230. The curved baffle 240 is arranged at an angle, and the angle between the curved baffle 240 and the horizontal plane is acute. The curved baffle 240 is used to collide with the liquid organic fertilizer sprayed from the tapered straight nozzle 230, so that the liquid organic fertilizer is evenly sprayed onto the ground.

[0072] When the liquid organic fertilizer enters the interior of the tapered straight nozzle 230, the inner diameter of the tapered straight nozzle 230 gradually decreases, the flow rate of the liquid organic fertilizer accelerates, and the liquid organic fertilizer is sprayed toward the curved baffle 240 at a very high flow rate. After the liquid organic fertilizer collides with the curved baffle 240, it is distributed to both sides and the rear of the curved baffle 240, thereby being evenly sprayed onto the ground.

[0073] Furthermore, a diversion protrusion is provided on the side of the arc-shaped baffle 240 facing the tapered straight nozzle 230. The diversion protrusion is in the shape of a cone or a hemisphere. When the liquid organic fertilizer is sprayed onto the diversion protrusion, the diversion protrusion guides the liquid organic fertilizer to spread in all directions and evenly spray it onto the ground.

[0074] In one embodiment of the present invention, Figure 1 As shown, the tank body 200 is provided with fertilizer inlets on both sides, symmetrically arranged on either side of the front end of the tank body 200. Both fertilizer inlets are provided with a third control valve 250, which is electrically connected to the control device. Specifically, the third control valve 250 is a pull rod control valve, but other types of control valves can also be used.

[0075] In one embodiment of the present invention, the ventilation box 300 is provided with a pressure sensor 310 for detecting the pressure in the ventilation box 300 . The control device controls the rotation speed of the pressure pump device 400 according to the pressure value detected by the pressure sensor 310 .

[0076] In one embodiment of the present invention, an anti-overflow valve 260 is provided at the air inlet port of the tank body 200 , and the anti-overflow valve 260 is used to prevent the organic fertilizer in the tank body 200 from entering the interior of the ventilation box 300 .

[0077] In one embodiment of the present invention, Figure 2 As shown, the pressing roller component 540 includes a pressing roller assembly 550 and a driving assembly 560. The driving assembly 560 includes two connecting plates 561 and two linear driving members 562. The two connecting plates 561 are spaced apart, and the pressing roller assembly 550 is located between the two connecting plates 561. Both ends of the pressing roller assembly 550 are rotatably connected to one end of the two connecting plates 561 in a one-to-one correspondence. The other ends of the two connecting plates 561 are hinged to the frame component 501 via pins. One end of the two linear driving members 562 is hinged to the two connecting plates 561 in a one-to-one correspondence, and the other ends of the two linear driving members 562 are hinged to the frame component 501. Specifically, the linear driving members 562 are oil cylinders. The cylinder bodies of the two oil cylinders are hinged to the frame component 501 via pins. The telescopic rods of the two oil cylinders are hinged to the two connecting plates 561 in a one-to-one correspondence via pins. When the oil cylinder is extended, the height of the press roller assembly 550 increases; when the oil cylinder is shortened, the height of the press roller assembly 550 decreases.

[0078] In one embodiment of the present invention, Figure 2As shown, the pressure roller assembly 550 includes a pressure roller shaft 541, multiple soil-crushing blades 542, and multiple pressure rods 543. The pressure roller shaft 541 is a rod-shaped structure, arranged perpendicular to the direction of movement of the tank body 200. The two ends of the pressure roller shaft 541 are rotatably connected to one end of two connecting plates 561. The soil-crushing blades 542 are circular, sheet-like structures. The soil-crushing blades 542 are spaced apart along the axial direction of the pressure roller shaft 541 and are welded to the pressure roller shaft 541. The pressure rods 543 are triangular irons. The multiple pressure rods 543 are spaced apart around the circumference of the soil-crushing blades 542 and connected to the edges of the soil-crushing blades 542. The pressure rods 543 form an acute angle with the pressure roller shaft 541. When the tractor is moving, the pressing roller assembly 550 rotates and presses and crushes the soil to level the soil, which can bury the liquid fertilizer to a certain extent to prevent it from volatilizing and emitting a pungent odor.

[0079] The working principle of fertilization equipment:

[0080] When the tank truck drives the vacuum pump to extract the gas in the tank body 200, the pressure in the tank body 200 decreases, and the liquid organic fertilizer can flow into the tank body 200 through the fertilizer inlet on both sides of the tank body 200. When the tank truck drives the vacuum pump to pump gas into the tank body 200, the pressure in the tank body 200 increases, and the liquid organic fertilizer in the tank body 200 flows out through the fertilizer discharge port and flows into the buffer tank 511. Under the action of the inner wall of the buffer box 511, it flows to the distributor cavity 512, and the rotating shaft 513 rotates under the drive of the motor. The spiral blades 516 with a certain spacing evenly distribute the liquid organic fertilizer to the outlet below the distributor cavity 512. The fiber materials, stones, etc. in the liquid organic fertilizer rotate with the rotating shaft 513 and move along the axial direction of the rotating shaft 513. When passing through the cutting knife 517, the cutting knife 517 will cut off the fiber materials, and the stones will be squeezed and crushed by the cutting knife 517. Some of the cut fiber materials and small stones will pass through the filter screen into the interior of the fluid controller 515, and finally flow into the field along the pipeline. The other part of the solid matter that has not passed through will move along the axial direction of the rotating shaft 513 to the residue discharge outlet 529, pass through the residue discharge outlet 529 and fall into the residue collection box 528 through the collection box entrance.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fertilizer stabilizing distributor, characterized in that: include: A buffer box (511), the buffer box (511) is provided with an inlet and an outlet, the inlet of the buffer box (511) being connected to the fertilizer discharge port of the tank body (200) through a fertilizer main pipe; A distributor body, the distributor body comprising a distributor cavity (512), a rotating shaft (513), a rotating drive device (514) and a fluid controller (515), the distributor cavity (512) being arranged below the buffer tank (511) and located on the upper part of the frame component (501); an inlet being provided at the top of the distributor cavity (512), the inlet of the distributor cavity (512) being connected to the outlet of the buffer tank (511), a plurality of outlets being provided at the bottom of the distributor cavity (512), the plurality of outlets of the distributor cavity (512) being arranged at intervals along a direction perpendicular to the movement of the tank body (200), and a filter being provided at the outlet of the distributor cavity (512); a connecting assembly being provided at both ends of the distributor cavity (512), the rotating shaft (513) being provided inside the distributor cavity (512), the two ends of the rotating shaft (513) being connected to the two connecting assemblies The components are rotatably connected in a one-to-one manner, the rotary drive device (514) is connected to one end of the rotating shaft (513) and is connected to the distributor cavity (512); the outer peripheral surface of the rotating shaft (513) is provided with a spiral blade (516) extending spirally along the length direction of the rotating shaft (513), and the edge of the spiral blade (516) is provided with a cutting knife (517), and the cutting knife (517) is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity (512); the inlet of the fluid controller (515) is connected to the outlet of the distributor cavity (512), and the outlet of the fluid controller (515) is connected to the upper port of the fertilizer pipe (531) through a fertilizer hose. The fluid controller (515) is used to provide a gas-liquid buffer zone during the fertilizer discharge process at the outlet of the distributor cavity (512), thereby reducing the pulsation impact caused by the airflow.

2. The fertilizer stabilizing distributor (510) according to claim 1, characterized in that: The cutting knife (517) comprises: a base (518), the base (518) being connected to the spiral blade (516); A plurality of blades (519) are arranged at intervals on a side of the base (518) away from the spiral blade (516); a cutting edge (520) is formed on a side of the blade (519) away from the base (518); and a cutting edge slope is formed between the cutting edge (520) and the side of the blade (519).

3. The fertilizer stabilizing distributor (510) according to claim 2, characterized in that: The length and width of each blade (519) are equal, and the distance between two adjacent blades (519) is equal.

4. The fertilizer stabilizing distributor (510) according to claim 2, characterized in that: The cutting edge slope is 25-30°.

5. The fertilizer stabilizing distributor (510) according to any one of claims 1 to 4, characterized in that: The fluid controller (515) is provided with a plurality of flow channel units (521) connected in sequence. The cross-sectional area of ​​the flow channel unit (521) gradually decreases from top to bottom. An arc-shaped guide surface is formed on the upper part of the side wall of the flow channel unit (521). The arc-shaped guide surface extends to the inlet of the flow channel unit (521). A guide block (522) is provided inside the flow channel unit (521). The guide block (522) is spaced apart from two opposite side walls of the flow channel unit (521).

6. The fertilizer stabilizing distributor (510) according to any one of claims 1 to 4, characterized in that: The connection component includes: Connecting flanges (523), both ends of the distributor cavity (512) are provided with fixed flanges (524), the connecting flanges (523) are connected to the corresponding fixed flanges (524), and the connecting flanges (523) and the fixed flanges (524) are both provided with shaft holes; The bearing seat (525) is arranged on the side of the connecting flange (523) away from the fixed flange (524), and the two ends of the rotating shaft (513) pass through the corresponding fixed flange (524) and the connecting flange (523) and then rotate with the corresponding bearing seat (525) through the bearing (526).

7. The fertilizer stabilizing distributor (510) according to claim 6, characterized in that: The connection component further includes: A sealing gasket is provided between the fixing flange (524) and the connecting flange (523) to ensure a sealing fit between the fixing flange (524) and the connecting flange (523).

8. The fertilizer stabilizing distributor (510) according to claim 6, characterized in that: Also includes: A residue collection box (528) is connected to the fixed flange (524) at one end of the distributor chamber (512) away from the rotation drive device (514), and the fixed flange (524) and the connecting flange (523) at one end of the distributor chamber (512) away from the rotation drive device (514) are both provided with a residue discharge outlet (529), and the residue discharge outlet (529) is connected to the residue collection box (528).

9. The fertilizer stabilizing distributor (510) according to claim 8, characterized in that: The bottom of the residue collection box (528) is provided with a mounting port, and the mounting port is provided with a bottom cover detachably connected to the residue collection box (528).

10. A fertilizing device, characterized in that: The invention comprises a vehicle frame, a tank body, an air exchange box, a pressure pump device and a fertilizer discharge device, wherein the fertilizer discharge device comprises the fertilizer stabilizing distributor according to any one of claims 1 to 9.

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