Liquid fertilizer distributor and fertilizer applicator equipped with the same

Abstract

The present invention relates to the field of agricultural machinery, and discloses a liquid fertilizer equalizer and a fertilizer applicator having the same. The liquid fertilizer equalizer includes a fertilizer delivery pipeline (1), a liquid fertilizer equalizing mechanism (3), and a precision cutting mechanism that are arranged coaxially with each other from top to bottom. The liquid fertilizer equalizing mechanism (3) is rotatably installed below the fertilizer delivery pipeline (1) and is formed with a liquid fertilizer receiving cavity (31) communicating with the fertilizer delivery pipeline (1) and a plurality of liquid fertilizer equalizing cavities (32) extending from the liquid fertilizer receiving cavity (31) and circumferentially distributed. The precision cutting mechanism includes a plurality of rotary knives (4) respectively connected to the bottom ends of the respective liquid fertilizer equalizing cavities (32) and a fixed knife (5) fixedly installed below the rotary knives (4) through a reference chassis (8). The liquid fertilizer equalizer can effectively prevent solid substances in manure from blocking the fertilizer outlet pipeline, and is beneficial to smoothly, reliably and evenly applying manure to farmland.

Description

Technical Field

[0001] The present invention relates to agricultural machinery, and particularly to a liquid fertilizer equalizer. On this basis, the present invention further relates to a fertilizer applicator vehicle having the liquid fertilizer equalizer. Background Art

[0002] With the continuous expansion of the scale of livestock and poultry farming, the production of livestock and poultry manure has been increasing year by year. The utilization and application equipment of manure returning to the field are related to the coordinated development of agricultural production and the ecological environment. The traditional manual fertilization operation has problems such as high work intensity, easy fatigue of people during long-term fertilization operations, low efficiency, and high cost. Therefore, there is an urgent need to develop a liquid manure fertilizer applicator vehicle that can continuously complete ditch opening, fertilization, and soil covering operations during walking.

[0003] As the core component of the liquid manure fertilizer applicator vehicle, the liquid fertilizer equalizer is used to evenly distribute the liquid manure to each fertilizer outlet pipeline to achieve manure returning to the field. The liquid fertilizer equalizers of existing liquid manure fertilizer applicator vehicles generally have problems such as easy blockage of the fertilizer outlet pipeline by impurities and uneven fertilization. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems of easy blockage of the fertilizer outlet pipeline and uneven fertilization during the operation of the existing liquid manure fertilizer applicator vehicle, and to provide a liquid fertilizer equalizer that can effectively prevent solid substances in the manure from blocking the fertilizer outlet pipeline and is conducive to evenly applying the manure to the farmland.

[0005] To achieve the above purpose, on the one hand, the present invention provides a liquid fertilizer equalizer, which includes a fertilizer feeding pipeline, a liquid fertilizer equalizing mechanism, and a fine cutting mechanism that are arranged coaxially with each other from top to bottom. A rough cutting mechanism is provided in the liquid fertilizer passage from the fertilizer feeding pipeline to the liquid fertilizer equalizing mechanism. The liquid fertilizer equalizing mechanism is rotatably installed below the fertilizer feeding pipeline and forms a liquid fertilizer receiving cavity communicating with the fertilizer feeding pipeline and a plurality of liquid fertilizer equalizing cavities extending from the liquid fertilizer receiving cavity and evenly distributed in the circumferential direction. The fine cutting mechanism includes a plurality of rotating knives respectively connected to the bottom ends of each of the liquid fertilizer equalizing cavities and a fixed knife fixedly installed below the rotating knives through a reference chassis. A liquid fertilizer outlet is formed on the reference chassis, so that during the rotation of the rotating knives with the liquid fertilizer equalizing mechanism, the fertilizer in the liquid fertilizer equalizing cavity can be sheared by the rotating knives and the fixed knife and discharged through the liquid fertilizer outlet.

[0006] Preferably, the rough cutting mechanism is installed in the fertilizer feeding pipeline and has a rough cutting blade with the blade facing upward, and / or a sealing ring is provided between the bottom end of the fertilizer feeding pipeline and the top end of the liquid fertilizer equalizing mechanism, so that the liquid fertilizer receiving cavity is hermetically connected to the fertilizer feeding pipeline.

[0007] Preferably, the liquid fertilizer equal distribution mechanism comprises an outer wall plate and an inner wall plate arranged radially at intervals, the outer wall plate and the inner wall plate are connected as a whole by a partition and form a plurality of liquid fertilizer equal distribution chambers evenly distributed in the circumferential direction in the radial gap, the top end of the outer wall plate is sealed and connected to the bottom end of the lower fertilizer pipeline, and the outer wall plate is surrounded above the inner wall plate to form the liquid fertilizer receiving chamber.

[0008] Preferably, along the top-down direction, the outer wall plate and the inner wall plate are respectively extended along the conical surface, so that each of the liquid fertilizer distribution chambers extends obliquely relative to the vertical direction.

[0009] Preferably, a motor is installed on the reference chassis and is transmission-connected to the inner wall plate for driving the liquid fertilizer equalizing mechanism to rotate, and / or the outer wall plate and the inner wall plate respectively have a main body corresponding to the liquid fertilizer receiving cavity and a plurality of branch portions corresponding to the liquid fertilizer equalizing cavity respectively extending from the main body, and the plurality of branch portions are circumferentially spaced from each other to form openings in adjacent liquid fertilizer equalizing cavities that allow access to the inner space surrounded by the inner wall plate.

[0010] Preferably, a spherical buffer cover protruding toward the liquid fertilizer receiving chamber is connected to the top end of the inner wall plate to allow fertilizer from the lower fertilizer pipeline to fall onto the spherical buffer cover and be distributed to each of the liquid fertilizer distribution chambers.

[0011] Preferably, a circular slide rail is provided on the reference chassis, and a sliding block slidably matched with the circular slide rail is provided on the inner wall plate.

[0012] Preferably, the reference chassis is provided with a leak-proof outer ring surrounding the bottom end of the outer wall plate, the rotating knife and the fixed knife.

[0013] Preferably, a dust cover covering the periphery of the liquid fertilizer evenly distributing mechanism is installed on the reference chassis, and / or a fertilizer distributing mechanism is connected to the side of the reference chassis facing away from the liquid fertilizer evenly distributing mechanism, and the fertilizer distributing mechanism has a plurality of fertilizer distributing hoses respectively connected to the liquid fertilizer outlets.

[0014] A second aspect of the present invention provides a fertilizer spreading vehicle, comprising a traveling chassis, a liquid fertilizer storage tank carried by the traveling chassis, and the liquid fertilizer equalizer connected to the liquid fertilizer storage tank.

[0015] Through the above technical solution, when the liquid manure flows through the liquid manure equalizer of the present invention via the manure feeding pipeline, the solid substances such as soil clods and straw in the manure can be cut and crushed by the rough cutting mechanism and the fine cutting mechanism successively, thereby avoiding blocking the manure discharging pipeline. Among them, the liquid manure equalizing mechanism can not only drive the rotating knife to rotate relative to the fixed knife below it to shear the solid substances in the manure, but also make the manure entering the liquid manure receiving cavity be evenly distributed to each liquid manure equalizing cavity during the rotation process, so that the manure flowing through the liquid manure equalizer can be smoothly, reliably and evenly applied to the farmland. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a sectional view structure diagram of a liquid manure equalizer according to a preferred embodiment of the present invention;

[0017] Figure 2 is Figure 1 an exploded view of the liquid manure equalizer in

[0018] Figure 3 is Figure 1 a three-dimensional view of the manure feeding pipeline of the liquid manure equalizer in , where a rough cutting mechanism is installed;

[0019] Figure 4 is Figure 1 a three-dimensional view of the liquid manure equalizing mechanism of the liquid manure equalizer in ;

[0020] Figure 5 is from another perspective of Figure 4 the three-dimensional view of the liquid manure equalizing mechanism in ;

[0021] Figure 6 is Figure 4 a sectional view structure diagram of the liquid manure equalizing mechanism in ;

[0022] Figure 7 is Figure 4 a top view of the liquid manure equalizing mechanism in ;

[0023] Figure 8 is Figure 4 a bottom view of the liquid manure equalizing mechanism in ;

[0024] Figure 9 is Figure 1 an enlarged view of the installation structure of the fine cutting mechanism, anti-leakage outer ring, reference chassis, etc. of the liquid manure equalizer in ;

[0025] Figure 10 is Figure 1 a three-dimensional view of the fixed knife of the liquid manure equalizer in ;

[0026] Figure 11 is Figure 1 a three-dimensional view of the anti-leakage outer ring of the liquid manure equalizer in ;

[0027] Figure 12 is Figure 1 A perspective view of the reference chassis of the liquid fertilizer equalizer in the middle;

[0028] Figure 13 is Figure 1 A perspective view of the fertilizer outlet mechanism of the liquid fertilizer equalizer in the middle.

[0029] Description of the reference numerals in the drawings

[0030] 1 - Lower fertilizer pipeline; 1a - Sealing ring; 2 - Rough cutting mechanism; 3 - Liquid fertilizer equalizing mechanism; 31 - Liquid fertilizer receiving chamber; 32 - Liquid fertilizer equalizing chamber; 33 - Outer wall plate; 34 - Inner wall plate; 35 - Partition plate; 36 - Spherical buffer cover; 37 - Slide block; 38 - Opening; 4 - Rotary knife; 5 - Fixed knife; 51 - Mounting seat; 52 - Fixed knife blade; 6 - Motor; 7 - Anti - leakage outer ring; 8 - Reference chassis; 81 - Fixed knife mounting hole; 82 - Liquid fertilizer outlet; 83 - Circular slide rail; 9 - Fertilizer outlet mechanism; 91 - Collection tank; 92 - Through hole; 93 - Fertilizer outlet hose; 10 - Dust cover. Detailed implementation manners

[0031] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0032] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" generally refer to the corresponding orientations and ends of the liquid fertilizer equalizer in the normal installation and use states. For example, the liquid fertilizer equalizer of the present invention is usually installed and used in the orientation shown, so that liquid fertilizers such as manure can flow out along the fertilizer flow path to the fertilizer outlet pipeline under the action of gravity, and the fertilizer can be cut and relatively evenly distributed to each fertilizer outlet pipeline. In addition, although the liquid fertilizer equalizer and the fertilizer applicator of the present invention will be mainly described with liquid manure as the treatment object, the manure to be applied is not limited to the case where it only contains liquid substances. It may be mixed with solid impurities such as straw and soil blocks during formation, storage and transportation. The liquid fertilizer equalizer of the present invention can cut and crush these solid impurities to effectively avoid blocking the fertilizer outlet pipeline; or, the liquid fertilizer equalizer and the fertilizer applicator of the present invention can also be used to treat other liquid fertilizers other than manure. For example, water - soluble fertilizers can be applied to farmland by the fertilizer applicator of the present invention. Figure 1

[0033] Figure 1 Refer to Figure 2 、 Figure 9 and Figure 9As shown, a liquid fertilizer equalizer according to a preferred embodiment of the present invention includes a lower fertilizer pipeline 1, a liquid fertilizer equalizing mechanism 3, and a fine cutting mechanism that are arranged coaxially with each other from top to bottom. A coarse cutting mechanism 2 is installed in the lower fertilizer pipeline 1. The liquid fertilizer equalizing mechanism 3 is rotatably installed below the lower fertilizer pipeline 1. The fine cutting mechanism includes a plurality of rotating knives 4 connected to the bottom end of the liquid fertilizer equalizing mechanism 3 and a fixed knife 5 fixedly installed below the rotating knife 4 through a reference chassis 8. A liquid fertilizer outlet 82 is formed on the reference chassis 8 (as Figure 12 shown). Thus, fertilizers such as liquid manure from a liquid fertilizer storage tank can be introduced into the liquid fertilizer equalizer of the present invention through the lower fertilizer pipeline 1, and large soil blocks therein are cut when passing through the coarse cutting mechanism 2. By rotating the liquid fertilizer equalizing mechanism 3, on the one hand, the fertilizers are evenly distributed in the circumferential direction under the action of centrifugal force so as to be evenly distributed to a plurality of fertilizer outlet pipes; on the other hand, the liquid fertilizer equalizing mechanism 3 drives the rotating knife 4 to perform a tangential movement relative to the fixed knife 5, thereby generating a shearing effect for cutting and tearing solid substances such as soil blocks and straws in the fertilizers to prevent them from blocking the fertilizer outlet pipes. It can be understood that the coarse cutting mechanism 2 can also be arranged in other parts of the liquid fertilizer passage from the lower fertilizer pipeline 1 to the liquid fertilizer equalizing mechanism 3, such as being arranged at the inlet end of the liquid fertilizer equalizing mechanism 3, and is not limited to being arranged in the lower fertilizer pipeline 1.

[0034] As Figures 4 to 8 , in order to facilitate the fine cutting mechanism to effectively shear the solid substances therein and evenly distribute the fertilizers to a plurality of fertilizer outlet pipes, in the liquid fertilizer equalizer of the present invention, the liquid fertilizer equalizing mechanism 3 is formed with a liquid fertilizer receiving cavity 31 communicating with the lower fertilizer pipeline 1 and a plurality of liquid fertilizer equalizing cavities 32 extending from the liquid fertilizer receiving cavity 31 and evenly distributed in the circumferential direction. Among them, the plurality of rotating knives 4 are respectively connected to the bottom ends of the respective liquid fertilizer equalizing cavities 32. During the process that the liquid fertilizer equalizing mechanism 3 is driven to rotate around its central axis, the liquid fertilizer entering the liquid fertilizer receiving cavity 31 is radially thrown out under the action of centrifugal force and then enters each liquid fertilizer equalizing cavity 32 relatively evenly. The liquid fertilizer in the liquid fertilizer equalizing cavity 32 flows downward. When passing through the fine cutting mechanism, the rotating knife 4 rotating with the liquid fertilizer equalizing mechanism 3 shears the solid substances in the liquid fertilizer with the fixedly installed fixed knife 5, and then is discharged through the liquid fertilizer outlet 82 on the reference chassis 8 (such as being discharged through a fertilizer outlet mechanism 9).

[0035] The liquid fertilizer equalizer of the present invention can successively cut and crush solid substances such as soil blocks and straws in the manure by the coarse cutting mechanism and the fine cutting mechanism, thereby preventing them from blocking the fertilizer outlet pipes. Among them, the liquid fertilizer equalizing mechanism can not only drive the rotating knife to rotate relative to the fixed knife below it to shear the solid substances in the manure, but also make the fertilizers entering its liquid fertilizer receiving cavity be evenly distributed to each liquid fertilizer equalizing cavity during the rotation process, so that the manure flowing through the liquid fertilizer equalizer can be smoothly, reliably and evenly applied to farmland.

[0036] Lower fertilizer pipeline 1 and rough cutting mechanism 2

[0037] Figure 3 The perspective view of the fertilizer down - feeding pipeline 1 used in the liquid - fertilizer equalizer of the above - mentioned preferred embodiment is shown, in which a rough - cutting mechanism 2 is installed. The fertilizer down - feeding pipeline 1 can be a pipeline with a circular cross - section. The bottom part thereof facing the liquid - fertilizer equalizing mechanism 3 can have a larger radial dimension compared to the upper part thereof, so as to install the rough - cutting mechanism 2 and facilitate the smooth discharge of fertilizers into the liquid - fertilizer equalizing mechanism 3.

[0038] The rough - cutting mechanism 2 is installed on the thicker part of the fertilizer down - feeding pipeline 1 and can be formed into a grid - shaped or other - shaped rough - cutting blades. Specifically, a plurality of blade bodies can be welded to each other to form a grid shape, and the interval between adjacent blade bodies can be, for example, 36 mm. During welding, the cutting edges of each blade body face upward and the backs face downward. The outer end of the rough - cutting blade can be welded or connected to the inner wall of the fertilizer down - feeding pipeline 1 by other means.

[0039] During the working process, liquid manure is pumped into the fertilizer down - feeding pipeline 1. When passing through the rough - cutting mechanism 2, larger soil blocks are cut or crushed under the action of gravity, internal pipe pressure, and the cutting of the rough - cutting blades, so as to avoid these large soil blocks from entering the liquid - fertilizer equalizing mechanism 3 or blocking the fertilizer outlet pipeline (such as the fertilizer outlet hose 93 described later, see Figure 13 )

[0040] By setting the rough - cutting blade with the cutting edge facing upward, the soil blocks can impact the cutting edge in the vertical direction under the action of its own gravity and liquid - fertilizer pressure, so that rough - cutting can be carried out without setting an additional power device, which has the advantages of simple structure and reliable performance. Since the manure must pass through the rough - cutting mechanism 2 before entering the liquid - fertilizer equalizing mechanism 3, the rough - cutting blade can be made of a material with good welding performance and good corrosion resistance. Considering the manufacturing cost, 1Cr18Mn8Ni5N can be selected as the manufacturing material of the rough - cutting blade.

[0041] Liquid fertilizer equalizing mechanism 3

[0042] According to the foregoing, the liquid - fertilizer equalizing mechanism 3 is one of the key core components in the liquid - fertilizer equalizer of the present invention, and it plays an important role in evenly distributing liquid fertilizer and achieving fine cutting. Figures 4 to 8 Different views of the liquid - fertilizer equalizing mechanism 3 used in the liquid - fertilizer equalizer of the above - mentioned preferred embodiment are shown.

[0043] The liquid fertilizer equalizing mechanism 3 is rotatably installed below the lower fertilizer pipeline 1. During its rotation, it is necessary to prevent the liquid fertilizer and manure from overflowing between the two. For this purpose, a sealing structure can be provided at the connection of the liquid fertilizer equalizing mechanism 3 to the lower fertilizer pipeline 1. For example, the liquid fertilizer equalizing mechanism 3 can be inserted into the bottom end of the lower fertilizer pipeline 1, and a sealing slip ring or the like can be provided in the radial gap at their connection. In the illustrated preferred embodiment, the bottom end of the lower fertilizer pipeline 1 and the top end of the liquid fertilizer equalizing mechanism 3 face each other, and a sealing ring 1a is provided therebetween to seal and connect the liquid fertilizer receiving cavity 31 of the liquid fertilizer equalizing mechanism 3 to the lower fertilizer pipeline 1 while allowing the liquid fertilizer equalizing mechanism 3 to rotate relative to the lower fertilizer pipeline 1.

[0044] In a preferred embodiment, the liquid fertilizer equalizing mechanism 3 includes an outer wall plate 33 and an inner wall plate 34 arranged at a radial interval. The outer wall plate 33 and the inner wall plate 34 are connected into one body by a partition plate 35 and form a plurality of liquid fertilizer equalizing cavities 32 evenly distributed in the circumferential direction within the radial gap. Thus, the top end of the outer wall plate 33 can be hermetically connected to the bottom end of the lower fertilizer pipeline 1 through the sealing ring 1a as described above, and the outer wall plate 33 forms a liquid fertilizer receiving cavity 31 above the inner wall plate 34. Thus, the liquid fertilizer equalizing mechanism 3 is connected into one body by the partition plate 35 between the outer wall plate 33 and the inner wall plate 34, and a liquid fertilizer receiving cavity 31 and a plurality of liquid fertilizer equalizing cavities 32 are formed in the space surrounded by the outer wall plate 33, which is beneficial to the convenient assembly and maintenance of the liquid fertilizer equalizer of the present invention. During the working process, the liquid fertilizer equalizing mechanism 3 can be driven to rotate integrally about its central axis, and the above-mentioned integral structure is also beneficial to preventing the liquid fertilizer and manure from overflowing from the connection parts of different components of the liquid fertilizer equalizing mechanism 3.

[0045] As described above, during the process of driving the liquid fertilizer equalizing mechanism 3 to rotate about its central axis, the liquid fertilizer entering the liquid fertilizer receiving cavity 31 is radially thrown out under the action of centrifugal force and then enters each liquid fertilizer equalizing cavity 32 relatively evenly. In order to facilitate the smooth entry of the liquid fertilizer in the liquid fertilizer receiving cavity 31 into the liquid fertilizer equalizing cavity 32, in the illustrated preferred embodiment, the outer wall plate 33 and the inner wall plate 34 are respectively arranged in a shape that gradually expands and extends along a conical surface from top to bottom. Thus, the liquid fertilizer equalizing cavity 32 formed between the outer wall plate 33 and the inner wall plate 34 extends obliquely relative to the vertical direction, such as having an included angle of 30° relative to the vertical direction, so as to adapt to the flow path of the liquid fertilizer in the liquid fertilizer equalizing mechanism 3 and facilitate its smooth downward flow.

[0046] Further, in the preferred embodiment shown in the figure, the outer wall plate 33 and the inner wall plate 34 respectively have a main body portion (i.e., a top frustum-shaped portion) corresponding to the liquid fertilizer receiving chamber 31 and a plurality of branch portions (i.e., leg-shaped portions) corresponding to the liquid fertilizer equalizing chamber 32 respectively extending from the main body portion, so that the portion located above the inner wall plate 34 surrounded by the main body portion of the outer wall plate 33 forms the liquid fertilizer receiving chamber 31, and each liquid fertilizer equalizing chamber 32 is defined by the branch portions of the outer wall plate 33, the branch portions of the inner wall plate 34 and the partitions 35 connected to both sides thereof, and an opening 38 allowing access to the inner space surrounded by the inner wall plate 34 is formed between adjacent liquid fertilizer equalizing chambers 32, which can facilitate the disassembly and assembly of components located in the inner space surrounded by the inner wall plate 34 (such as the motor 6 described later, see Figure 1 and Figure 2 ). The liquid fertilizer equalization mechanism 3 shown in the figure has three liquid fertilizer equalization chambers 32 spaced apart from each other, thereby being able to have a relatively large flow cross-section while ensuring structural strength. In other embodiments, the liquid fertilizer equalization mechanism 3 may also have more liquid fertilizer equalization chambers 32, and is not limited to the structural form shown in the figure.

[0047] In addition, it should be understood that the outer wall plate 33 and the inner wall plate 34 can also be formed into a complete frustum-shaped structure, and the annular space between the two can be divided into multiple liquid fertilizer distribution chambers 32 by partitions without leaving the aforementioned openings 38, which can also achieve uniform distribution of liquid fertilizer in the circumferential direction.

[0048] The top of the inner wall plate 34 can be connected to a spherical buffer cover 36 protruding toward the liquid fertilizer receiving chamber 31 by welding or the like, and the fertilizer from the lower fertilizer pipeline 1 can fall onto the spherical buffer cover 36. The spherical buffer cover 36 can effectively reduce the impact and damage of the manure on the top of the inner wall plate 34, and is also conducive to evenly distributing the liquid manure to each liquid fertilizer distribution chamber 32.

[0049] Combination Figure 1 and Figure 2 As shown, the reference chassis 8 may be equipped with a motor 6 that is transmission-connected to the inner wall plate 34 for driving the liquid fertilizer equalizing mechanism 3 to rotate, and the motor 6 may be accommodated in the inner space surrounded by the inner wall plate 34 to make the structure compact. The motor 6 may be transmission-connected to the inner wall plate 34 in a variety of ways. For example, the motor 6 may be installed so that its power output shaft extends along the central axis of the liquid fertilizer equalizing mechanism 3. A coupling may be connected to the power output shaft, and the coupling may be connected to the inner wall plate 34, thereby having a shorter transmission path and good centering, which facilitates driving the liquid fertilizer equalizing mechanism 3 to rotate stably.

[0050] In other embodiments, for example, the driving device of the motor 6 can drive the liquid fertilizer equalizing mechanism 3 to rotate in other suitable ways. For example, the power output shaft of the motor 6 can be connected to components such as the outer wall plate 33 of the liquid fertilizer equalizing mechanism 3 through gear transmission, chain transmission, etc. Similarly, the rotation of the liquid fertilizer equalizing mechanism 3 can be achieved, but it may lead to the complication of the transmission structure or the deterioration of the transmission stability.

[0051] Combined with Figure 9 , in a preferred embodiment of the liquid fertilizer equalizer of the present invention, a circular slide rail 83 can be provided on the reference chassis 8, and a slider 37 that slidably cooperates with the circular slide rail 83 can be correspondingly provided on the inner wall plate 34 of the liquid fertilizer equalizing mechanism 3. Thus, when the motor 6 drives the liquid fertilizer equalizing mechanism 3 to rotate as described above, the mutually cooperating slider 37 and circular slide rail 83 can limit the radial offset of the liquid fertilizer equalizing mechanism 3, ensuring that the liquid fertilizer equalizing mechanism 3 is driven to rotate around its central axis.

[0052] As the core component of the liquid fertilizer equalizer, the liquid fertilizer equalizing mechanism 3 can be made of corrosion-resistant and high-strength materials. For example, 1Cr18Mn8Ni5N can be selected as its manufacturing material.

[0053] Fine cutting mechanism

[0054] Combined with Figure 9 and Figure 10 , the precision cutting mechanism includes a rotary knife 4 connected to the bottom end of the liquid fertilizer equalizing mechanism 3 and a fixed knife 5 fixedly installed below the rotary knife 4 through the reference chassis 8. Among them, a rotary knife fixing groove can be respectively provided at the bottom end of each liquid fertilizer equalizing cavity 32 of the liquid fertilizer equalizing mechanism 3, and the rotary knife 4 can be connected to the bottom end of the liquid fertilizer equalizing cavity 32 through fasteners such as bolts. The rotary knife 4 can surround the outlet end of the liquid fertilizer equalizing cavity 32 and has a blade facing inward.

[0055] The fixed knife 5 is generally formed in a ring shape and is fixed to the reference chassis 8 through fasteners such as bolts. For this purpose, as Figure 12 shown, a plurality of fixed knife mounting holes 81 distributed in the circumferential direction can be formed on the reference chassis 8; correspondingly, as Figure 10 shown, the outer edge of the fixed knife 5 can have a plurality of mounting seats 51 for connecting it to the reference chassis 8 through bolts.

[0056] The fixed knife 5 has an inner ring and an outer ring, and a plurality of fixed knife blades 52 are welded between the inner ring and the outer ring and are evenly distributed at intervals in the circumferential direction. Each fixed knife blade 52 can have a blade inclined upward, and the inclined direction is opposite to the rotation direction of the liquid fertilizer equalizing mechanism 3, such as having a 30° inclination angle relative to the horizontal direction.

[0057] As the liquid fertilizer equalizing mechanism 3 rotates, when the fertilizer falls from the liquid fertilizer equalizing chamber 32, the rotating knife 4 and the fixed knife 5 cut and crush solid substances such as soil blocks and straws in the manure in a direction parallel to the reference chassis 8, and due to their relative rotation, these solid substances can be cut into smaller volumes, thus effectively avoiding clogging of the fertilizer outlet pipe.

[0058] Since the rotating knife 4 and the fixed knife 5 need to contact the liquid manure during operation, 1Cr18Mn8Ni5N with good corrosion resistance can be selected as the manufacturing material for them.

[0059] Leak-proof outer ring 7

[0060] Combined Figure 1 、 Figure 2 、 Figure 9 and Figure 11 As shown, in order to prevent the high-speed rotating liquid manure from overflowing outward between the relatively moving rotating knife 4 and the fixed knife 5, a leak-proof outer ring 7 can be installed on the reference chassis 8 around the bottom end of the liquid fertilizer equalizing mechanism 3 (i.e., the outer wall plate 33), the rotating knife 4 and the fixed knife 5. Since the leak-proof outer ring 7 does not need to contact the liquid manure over a large area during operation and only needs to prevent the liquid manure from leaking, HT200 with good economy can be selected as the manufacturing material for it.

[0061] Reference chassis 8

[0062] As mentioned above, the reference chassis 8 serves as the installation base for the fixed knife 5, the motor 6, the leak-proof outer ring 7, etc., and plays an important role in bearing and positioning each part. As Figure 12 shown, in a preferred embodiment, the reference chassis 8 has a plurality of liquid fertilizer outlets 82, and the fixed knife 5 is installed on the liquid fertilizer outlets 82.

[0063] In the area surrounded by the liquid fertilizer outlets 82, a circular slide rail 83 for guiding the stable rotation of the liquid fertilizer equalizing mechanism 3 is provided on the reference chassis 8. The central part surrounded by the circular slide rail 83 can be set as a detachable structure for conveniently installing the aforementioned motor 6 after disassembly and bearing the motor 6 after installation.

[0064] As the support and positioning element of the liquid fertilizer equalizer, the reference chassis 8 needs to have sufficient strength to ensure no failure during operation, and 45 steel with better strength can be selected as the manufacturing material for it.

[0065] Fertilizer discharging mechanism 9 and dust-proof cover 10

[0066] On the side of the reference chassis 8 facing away from the liquid fertilizer equalizing mechanism 3 (i.e., the lower side), a fertilizer outlet mechanism 9 can also be connected for collecting and discharging the liquid manure. Figure 13The figure shows a perspective view of the fertilizer discharging mechanism 9 used in the liquid fertilizer equalizer of the above-mentioned preferred embodiment. In this preferred embodiment, 12 fan-shaped collecting grooves 91 are formed at the top of the fertilizer discharging mechanism 9. The corresponding central angle of the collecting groove 91 is 30°, and they are respectively aligned with the liquid fertilizer outlet 82. A through hole 92 is formed at the bottom of the collecting groove 91, and a fertilizer discharging hose 93 is connected thereto. Thus, the liquid manure flowing through the fine cutting mechanism can enter the fertilizer discharging hose 93 through the collecting groove 91, and then be discharged and applied to the farmland. The fertilizer discharging mechanism 9 can be connected to the lower side of the reference chassis 8, such as by bolts.

[0067] In addition, a dust-proof cover 10 covering the periphery of the liquid fertilizer equalizing mechanism 3 can be installed on the reference chassis 8 to prevent the liquid fertilizer equalizing mechanism 3 from being exposed outward. This can not only effectively prevent structural damage or safety risks caused by accidental collision and contact of external objects with the liquid fertilizer equalizing mechanism 3, etc., but also prevent soil and the like from entering the space between the liquid fertilizer equalizing mechanism 3 and the fertilizer feeding pipeline 1, avoiding poor rotation. As Figure 2 shown, the dust-proof cover 10 can be composed of two semi-cylindrical shells, which surround the liquid fertilizer equalizing mechanism 3 and a part of the fertilizer feeding pipeline 1, and are connected to the reference base 8, such as by bolts.

[0068] The above provides a detailed description of the liquid fertilizer equalizer provided by the present invention. On this basis, the present invention also provides a fertilizing vehicle, which includes a traveling chassis, a liquid fertilizer storage tank carried by the traveling chassis, and the above-mentioned liquid fertilizer equalizer communicated with the liquid fertilizer storage tank. Through this liquid fertilizer equalizer, the fertilizing vehicle of the present invention can smoothly, reliably and evenly apply manure to the farmland, which is beneficial to improving crop yield and reducing labor intensity.

[0069] The preferred embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including any suitable combination of each specific technical feature. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods. But these simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.

Claims

1. A liquid fertilizer distributor, characterized in that, The invention relates to a fertilizer distribution device, comprising a lower fertilizer pipeline (1), a liquid fertilizer distribution mechanism (3) and a fine cutting mechanism which are coaxially arranged from top to bottom, wherein a rough cutting mechanism (2) is arranged in a liquid fertilizer passage from the lower fertilizer pipeline (1) to the liquid fertilizer distribution mechanism (3), the liquid fertilizer distribution mechanism (3) is rotatably mounted below the lower fertilizer pipeline (1) and is provided with a liquid fertilizer receiving chamber (31) connected to the lower fertilizer pipeline (1) and a plurality of liquid fertilizer distribution chambers (32) extending from the liquid fertilizer receiving chamber (31) and uniformly distributed in the circumferential direction, and the liquid fertilizer distribution mechanism (3) comprises an outer wall plate (33) and an inner wall plate (34) which are radially spaced apart, the outer wall plate (33) and the inner wall plate (34) being connected as a whole by a partition plate (35) and forming a plurality of liquid fertilizer distribution chambers (32) uniformly distributed in the circumferential direction in a radial gap. The liquid fertilizer distribution chamber (32) is provided with a top end of the outer wall plate (33) sealedly connected to the bottom end of the lower fertilizer pipeline (1), and the outer wall plate (33) surrounds the liquid fertilizer receiving chamber (31) above the inner wall plate (34); the precision cutting mechanism comprises a plurality of rotary knives (4) respectively connected to the bottom ends of the respective liquid fertilizer distribution chambers (32) and a fixed knife (5) fixedly mounted below the rotary knives (4) via a reference chassis (8), and a liquid fertilizer outlet (82) is formed on the reference chassis (8), so that when the rotary knives (4) rotate with the liquid fertilizer distribution mechanism (3), the fertilizer in the liquid fertilizer distribution chamber (32) can be sheared by the rotary knives (4) and the fixed knives (5) and discharged through the liquid fertilizer outlet (82).

2. The liquid fertilizer distributor according to claim 1, characterized in that, The rough cutting mechanism (2) is installed in the lower fertilizer pipeline (1) and has a rough cutting blade with the blade facing upwards, and / or a sealing ring (1a) is provided between the bottom end of the lower fertilizer pipeline (1) and the top end of the liquid fertilizer equalizing mechanism (3), so that the liquid fertilizer receiving chamber (31) is sealed and connected to the lower fertilizer pipeline (1).

3. The liquid fertilizer equalizer according to claim 1, characterized in that, In a top-down direction, the outer wall plate (33) and the inner wall plate (34) respectively extend gradually along a conical surface, so that each of the liquid fertilizer distribution chambers (32) extends obliquely relative to the vertical direction.

4. The liquid fertilizer distributor according to claim 3, characterized in that, The reference chassis (8) is provided with a motor (6) which is transmission-connected to the inner wall plate (34) for driving the liquid fertilizer equalizing mechanism (3) to rotate, and / or the outer wall plate (33) and the inner wall plate (34) respectively have a main body corresponding to the liquid fertilizer receiving chamber (31) and a plurality of branch parts respectively extending from the main body and corresponding to the liquid fertilizer equalizing chamber (32), wherein the plurality of branch parts are circumferentially spaced from each other to form an opening (38) in adjacent liquid fertilizer equalizing chambers (32) allowing access to the inner space surrounded by the inner wall plate (34).

5. The liquid fertilizer distributor according to claim 1, wherein The top end of the inner wall plate (34) is connected to a spherical buffer cover (36) protruding toward the liquid fertilizer receiving chamber (31) to allow fertilizer from the lower fertilizer pipeline (1) to fall onto the spherical buffer cover (36) and be distributed to each of the liquid fertilizer distribution chambers (32).

6. The liquid fertilizer equalizer according to claim 1, characterized in that, A circular slide rail (83) is provided on the reference chassis (8), and a slider (37) slidably engaged with the circular slide rail (83) is provided on the inner wall plate (34).

7. The liquid fertilizer distributor according to claim 1, characterized in that, A leakage prevention outer ring (7) surrounding the bottom end of the outer wall plate (33), the rotary knife (4) and the stationary knife (5) is provided on the reference chassis (8).

8. The liquid fertilizer equalizer according to claim 1, characterized in that, A dust-proof cover (10) covering the periphery of the liquid fertilizer equalizing mechanism (3) is installed on the reference chassis (8), and / or, an fertilizer discharging mechanism (9) is connected to one side of the reference chassis (8) facing away from the liquid fertilizer equalizing mechanism (3), and the fertilizer discharging mechanism (9) has a plurality of fertilizer discharging hoses (93) respectively communicating with the liquid fertilizer outlet (82).

9. A fertilizing vehicle, characterized in that, It includes a traveling chassis, a liquid fertilizer storage tank carried by the traveling chassis, and a liquid fertilizer equalizer according to any one of claims 1 to 8 communicated with the liquid fertilizer storage tank.

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