Variable fertilizer distributor

Abstract

The utility model discloses a variable fertilizer spreader, which comprises a fertilizer supply mechanism, a fertilizer spreading mechanism, a variable speed advancing mechanism and a main controller, the fertilizer supply mechanism comprises a fertilizer box, a material supply element is arranged in the fertilizer box, the material supply element is driven by a first variable speed driving assembly, an outlet of the material supply element is communicated with a material supply pipe, and the material supply pipe is detachably connected with the fertilizer box; the fertilizer spreading mechanism comprises a fertilizer spreading disc which is rotationally arranged, the fertilizer spreading disc and the outlet of the feeding pipe are correspondingly arranged and communicated, and the fertilizer spreading disc is driven to rotate through a second variable-speed driving assembly. The variable-speed traveling mechanism is used for controlling the traveling speed of the fertilizer supply mechanism and the fertilizer spreading mechanism, the first variable-speed driving assembly is used for controlling the feeding speed of the supply element to the fertilizer spreading disc, and the second variable-speed driving assembly is used for controlling the rotating speed of the fertilizer spreading disc, so that the fertilizer spreading radius is controlled; according to the utility model, the fertilizer spreading speed, the fertilizer spreading amount and the fertilizer spreading radius are comprehensively controlled, so that variable fertilizer spreading is realized, and accurate fertilizer spreading is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to agricultural machinery technical field especially, it relates to a variable fertilizer distributor. BACKGROUND

[0002] At present, the fertilizer distributor is mainly divided into two categories of traction type and self-propelled type, the traction type fertilizer distributor is mainly composed of a fertilizer box and a throwing mechanism, and the power source relies on the output shaft of a tractor; the self-propelled fertilizer distributor integrates the fertilizer box and the throwing mechanism on a movable chassis, and once the fertilizer is loaded, the fertilizer can be applied to a large area; the existing throwing mechanism is quantitative fertilizer distribution, that is, the fertilizer distribution amount of the throwing mechanism in a unit time is certain, whether it is the traction type fertilizer distributor or the self-propelled fertilizer distributor, the moving speed of the tractor or the movable chassis is controlled to control the advancing speed of the throwing mechanism, and then the fertilizer distribution speed is controlled, that is, the fertilizer distribution speed and the fertilizer distribution amount are set by the operator and cannot be changed, so that accurate fertilizer distribution cannot be realized, and the fertilizer distribution is still a rough method, which is easy to cause fertilizer waste and uneven fertilizer application. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a variable fertilizer distributor to solve the problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a variable fertilizer distributor, which comprises:

[0005] A fertilizer supply mechanism, which comprises a fertilizer box, the fertilizer box is internally provided with a feeding element, the feeding element is driven by a first variable speed driving assembly, the outlet of the feeding element is communicated with a feeding pipe, and the feeding pipe and the fertilizer box are detachably connected.

[0006] A fertilizer distribution mechanism, which comprises a rotating fertilizer distribution disc, the fertilizer distribution disc is correspondingly arranged and communicated with the outlet of the feeding pipe, and the fertilizer distribution disc is driven to rotate by a second variable speed driving assembly.

[0007] A variable speed advancing mechanism, the fertilizer supply mechanism and the fertilizer distribution structure are detachably connected with the variable speed advancing mechanism.

[0008] A main controller, the first variable speed driving assembly, the second variable speed driving assembly and the variable speed advancing mechanism are electrically connected with the main controller, the main controller controls the feeding speed of the feeding element to the feeding pipe by the first variable speed driving assembly, controls the rotating speed of the fertilizer distribution disc by the second variable speed driving assembly, and controls the advancing speed of the variable speed advancing mechanism according to the feedback of the received and stored soil parameters.

[0009] Optionally, a plurality of fertilizer spreading blades are arranged on the side of the fertilizer spreading disc close to the outlet of the feeding pipe, the fertilizer spreading blades extend from the rotation point of the fertilizer spreading disc to the periphery of the fertilizer spreading disc, and all the fertilizer spreading blades are arranged in a ring shape and spaced apart in the circumferential direction of the rotation point of the fertilizer spreading disc.

[0010] Optionally, the fertilizer spreading mechanism further comprises a fertilizer spreading cover, an installation cavity for accommodating the fertilizer spreading disc is arranged in the fertilizer spreading cover, the fertilizer spreading disc is rotatably installed in the installation cavity, a feeding port is formed on the side of the fertilizer spreading cover close to the feeding pipe, and a fertilizer ejection port is formed on the side of the fertilizer spreading cover away from the variable speed traveling mechanism.

[0011] Optionally, the fertilizer spreading mechanism is arranged on both sides of the variable speed traveling mechanism in the traveling direction, and at least two groups of the fertilizer spreading mechanism are arranged on each side of the variable speed traveling mechanism.

[0012] Optionally, the second variable speed driving assembly comprises a second variable speed driving motor, a second driving sprocket is detachably connected to the output shaft of the second variable speed driving motor, each fertilizer spreading disc on the same side is detachably connected with a second driven sprocket, and the second driving sprocket and all the second driven sprockets are connected through a second chain.

[0013] Optionally, a plurality of material conveying channels are arranged on the bottom of the fertilizer tank inner cavity, the material conveying channels are perpendicular to the traveling direction of the variable speed traveling mechanism, the feeding element is a spiral conveying element, the spiral conveying element is rotatably arranged in each material conveying channel, the output end of the conveying channel is in communication with the feeding pipe, and the spiral conveying element is driven by the first variable speed driving assembly.

[0014] Optionally, the spiral conveying element comprises two groups of spiral blades with opposite rotation directions, a partition plate is arranged at the adjacent positions of the two groups of spiral blades, the partition plate divides the material conveying channel into two sections and is in communication with different feeding pipes.

[0015] Optionally, the first variable speed driving assembly comprises a first variable speed driving motor, a first driving sprocket is detachably connected to the output shaft of the first variable speed driving motor, and the spiral conveying element is detachably connected with a first driven sprocket, and the first driving sprocket and all the first driven sprockets are connected through a first chain.

[0016] Optionally, the main controller is electrically connected with a satellite navigation module, a gyroscope sensor and a camera module.

[0017] Compared with the prior art, the fertilizer spreading device has the following advantages and technical effects:

[0018] In operation, this invention utilizes a first speed-changing drive assembly to drive a feeding element, which supplies fertilizer from the fertilizer bin into a feeding pipe, which then conveys it to a spreading disc. A second speed-changing drive assembly then drives the spreading disc to rotate, causing the fertilizer to be scattered by centrifugal force. This invention controls the speed of the feeding and spreading mechanisms (spreading distance per unit time) through a speed-changing travel mechanism; it controls the feeding speed of the feeding element to the spreading disc (spreading amount per unit time) through the first speed-changing drive assembly; and it controls the rotation speed of the spreading disc (spreading radius) through the second speed-changing drive assembly. The main controller, based on received and stored soil parameters, controls the feeding speed of the feeding element to the feeding pipe through the first speed-changing drive assembly, the rotation speed of the spreading disc through the second speed-changing drive assembly, and the travel speed of the speed-changing travel mechanism. This invention comprehensively controls the spreading speed, amount, and radius, achieving variable-rate and precise fertilization. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the variable fertilizer spreader of this utility model;

[0021] Figure 2 This is a schematic diagram of the fertilizer supply mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the spiral conveyor structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the fertilizer spreading mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the transmission structure of the fertilizer spreading mechanism of this utility model.

[0025] Wherein, 1, fertilizer supply mechanism, 11, fertilizer box, 12, feeding pipe, 13, conveying passage, 14, spiral conveying part, 15, partition plate, 16, first variable speed drive motor, 17, first drive sprocket, 18, first driven sprocket, 19, first chain, 2, fertilizer distribution mechanism, 21, fertilizer distribution disc, 22, fertilizer distribution blade, 23, second variable speed drive motor, 24, second drive sprocket, 25, second driven sprocket, 26, second chain, 27, fertilizer distribution shield, 28, feeding inlet, 29, mounting shell, 3, variable speed travel mechanism, 4, control box, 5, camera, 6, alarm. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The described embodiments are only part of the embodiments of the utility model, not all. All other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] As Figures 1 to 5 The utility model provides a variable fertilizer distributor, including fertilizer supply mechanism 1, fertilizer distribution mechanism 2, variable speed travel mechanism 3 and main controller. Fertilizer supply mechanism 1 includes fertilizer box 11, and the inside of fertilizer box 11 is provided with feeding element, and feeding element is driven through first variable speed drive assembly, and the outlet of feeding element is connected with feeding pipe 12, and feeding pipe 12 and fertilizer box 11 are detachably connected;Fertilizer distribution mechanism 2 includes rotationally arranged fertilizer distribution disc 21, and fertilizer distribution disc 21 is correspondingly arranged with the outlet of feeding pipe 12 and is communicated, and fertilizer distribution disc 21 is driven to rotate through second variable speed drive assembly;Fertilizer supply mechanism 1 and fertilizer distribution structure are detachably connected with variable speed travel mechanism 3;First variable speed drive assembly, second variable speed drive assembly and variable speed travel mechanism 3 are electrically connected with main controller, and main controller controls the feeding speed of feeding element to feeding pipe 12 according to the feedback of received and stored soil parameters, controls the rotation speed of fertilizer distribution disc 21 and the travel speed of variable speed travel mechanism 3.

[0028] The utility model discloses a variable speed driving component drives the feeding element to work, and the feeding element supplies the fertilizer in the fertilizer box 11 to the feeding pipe, and then conveys to the fertilizer distribution disc 21, and the second variable speed driving component drives the fertilizer distribution disc 21 to rotate, and the fertilizer that falls on the fertilizer distribution disc 21 moves to the fertilizer distribution disc 21 under the action of the rotating centrifugal force, and after separating from the fertilizer distribution disc 21, continues to move to the predetermined direction under the action of the original kinetic energy, until landing realizes the fertilizer distribution. The utility model discloses a variable speed driving component controls the feeding speed of the feeding element to the fertilizer distribution disc 21, that is, the fertilizer distribution amount in unit time, and the second variable speed driving component controls the rotating speed of the fertilizer distribution disc 21, realizes the control of the fertilizer distribution radius. The main controller in the utility model controls the feeding speed of the feeding element to the feeding pipe according to the soil parameter feedback received and stored, controls the rotating speed of the fertilizer distribution disc through the second variable speed driving component, and the advancing speed of the variable speed advancing mechanism, the utility model comprehensively controls the fertilizer distribution speed, the fertilizer distribution amount and the fertilizer distribution radius, thereby realizing the variable fertilizer distribution and realizing the accurate fertilizer distribution.

[0029] Further optimization scheme, the fertilizer distribution disc 21 is provided with a plurality of fertilizer distribution shovels 22 on the side close to the outlet of the feeding pipe 12, the fertilizer distribution shovels 22 extend from the rotating point of the fertilizer distribution disc 21 to the outer periphery of the fertilizer distribution disc 21, and all the fertilizer distribution shovels 22 are arranged on the circumference of the rotating point of the fertilizer distribution disc 21. When the fertilizer distribution disc 21 is not provided with the fertilizer distribution shovels 22, the fertilizer falling on the fertilizer distribution disc 21 moves to the fertilizer distribution disc 21 under the action of the rotating centrifugal force, and after separating from the fertilizer distribution disc 21, continues to move to the predetermined direction under the action of the original kinetic energy, until landing. When the fertilizer distribution disc 21 is provided with the fertilizer distribution shovels 22, the fertilizer falling into the fertilizer distribution disc 21 and falling on the adjacent area of the fertilizer distribution shovels 22 moves in the direction and speed perpendicular to the fertilizer distribution disc 21, which is different from the moving direction of the fertilizer distribution shovels 22, so the fertilizer distribution shovels 22 will generate force on the fertilizer, and the fertilizer will be ejected under the action of the force. The faster the rotating speed of the fertilizer distribution disc 21, the faster the rotating speed of the fertilizer distribution shovels 22, the greater the force on the fertilizer, the greater the distance of the ejected fertilizer, and the greater the fertilizer distribution radius. The fertilizer not ejected moves to the fertilizer distribution disc 21 under the action of the rotating centrifugal force, and after separating from the fertilizer distribution disc 21, continues to move to the predetermined direction under the action of the original kinetic energy, until landing. The addition of the fertilizer distribution shovels 22 increases the fertilizer distribution radius.

[0030] The fertilizer distribution shovels 22 are connected to the fertilizer distribution disc 21 by bolts in the embodiment, and four fertilizer distribution shovels 22 are arranged on each fertilizer distribution disc 21 in the embodiment, which are evenly distributed on the fertilizer distribution disc 21 to maximize the uniform distribution of the fertilizer within the fertilizer distribution radius of the fertilizer distribution mechanism 2.

[0031] Further optimization scheme, the fertilizer spreading mechanism 2 further includes a fertilizer spreading cover 27, a mounting cavity for accommodating the fertilizer spreading disc 21 is arranged inside the fertilizer spreading cover 27, the fertilizer spreading disc 21 is rotatably installed in the mounting cavity, a feeding port 28 is formed on the side of the fertilizer spreading cover 27 close to the feeding pipe 12, and a fertilizer ejection port is formed on the side of the fertilizer spreading cover 27 away from the variable speed traveling mechanism 3. The side of the fertilizer spreading cover 27 close to the feeding pipe 12 is provided with a feeding port 28, and the fertilizer enters the area between the fertilizer spreading cover 27 and the fertilizer spreading disc 21, and under the action of the fertilizer spreading disc 21 and the fertilizer spreading shovel 22, the fertilizer is ejected, and the fertilizer spreading cover 27 restricts the ejection direction of the fertilizer, and the ejection direction is away from the variable speed traveling mechanism 3 towards the opposite direction. Ensure that the flying direction of the fertilizer is constrained to the maximum extent.

[0032] In the embodiment, the fertilizer spreading mechanism 2 can be installed at any position of the variable speed traveling mechanism 3 as required, preferably, the fertilizer spreading mechanism 2 is arranged on both sides of the variable speed traveling mechanism 3 in the traveling direction, and at least two groups of the fertilizer spreading mechanism 2 are arranged on each side of the variable speed traveling mechanism 3. The existing fertilizer spreader is a terminal back-carrying fertilizer spreader, and the fan-shaped area is realized by taking the fertilizer spreader as the vertex. In the fertilizer spreader, the fertilizer spreading mechanism 2 is arranged on both sides of the variable speed traveling mechanism 3, and the fertilizer spreading mechanism 2 on the same side is arranged at intervals, so that the fertilizer spreading mechanism 2 can uniformly spread fertilizer on the side of the land, and the spreading range is approximately circular with the variable speed traveling mechanism 3 as the origin. Compared with the traditional terminal fertilizer spreader, the structure increases the throwing range during spreading, and improves the spreading efficiency.

[0033] The second variable speed driving assembly can be realized in various ways such as belt driving transmission, chain wheel driving transmission and the like. In the embodiment, the second variable speed driving assembly includes a second variable speed driving motor 23, and a second driving chain wheel 24 is detachably connected to the output shaft of the second variable speed driving motor 23; each fertilizer spreading disc 21 on the same side is detachably connected with a second driven chain wheel 25, and the second driving chain wheel 24 and all the second driven chain wheels 25 are drivingly connected through a second chain 26. In the embodiment, the driving mode of chain plus chain wheel is adopted, compared with belt transmission, there is no elastic sliding and slipping phenomenon, the average transmission ratio is accurate, the work is reliable, the efficiency is high, the transmission power is large, the overload capacity is strong, the transmission size is small under the same working condition, the required tension is small, the pressure acting on the shaft is small, and the work can be carried out in high temperature, humidity, dust, pollution and other harsh environments.

[0034] In the embodiment, the fertilizer spreading mechanism 2 further comprises a mounting housing 29, which is detachably connected with the variable-speed traveling mechanism 3, the second driving sprocket 24, all the second driven sprockets 25 and the second chain 26 are arranged inside the mounting housing 29, a mounting plate is detachably connected on the top of the mounting housing 29, the fertilizer spreading disc 21 is rotatably connected with the mounting plate, the fertilizer spreading disc 21 is detachably connected with the second driven sprocket 25, and the mounting housing 29 and the mounting plate support the fertilizer spreading cover 27, the fertilizer spreading disc 21 and the second variable-speed driving motor 23. The second variable-speed driving motor 23 in the embodiment can be realized by various modes such as frequency conversion speed regulation, voltage conversion speed regulation and mechanical speed regulation.

[0035] In the embodiment, the fertilizer tank 11 can be one tank or multiple tanks. When the fertilizer tank 11 is multiple tanks, each feeding pipe 12 can correspond to one fertilizer tank 11, or multiple feeding pipes 12 can correspond to one fertilizer tank 11, or one feeding pipe 12 can correspond to multiple fertilizer tanks, etc. When each feeding pipe 12 corresponds to one fertilizer tank 11, the feeding element is vertically arranged and can be a spiral conveying element or the like, which provides the fertilizer to the feeding pipe 12.

[0036] Preferably, when the fertilizer tank 11 is one tank, the bottom of the inner cavity of the fertilizer tank 11 is provided with a plurality of material conveying passages 13, which are perpendicular to the traveling direction of the variable-speed traveling mechanism 3; the feeding element is a spiral conveying element 14, which comprises a rotating shaft, the outer periphery of the rotating shaft is fixedly connected with spiral blades, the spiral conveying element 14 is rotatably arranged in each material conveying passage 13, the output end of the conveying passage is in communication with the feeding pipe 12, and the spiral conveying element 14 is driven by the first variable-speed driving assembly. In the embodiment, the bottom of the inner cavity of the fertilizer tank 11 is provided with a plurality of material conveying passages 13, under the action of gravity, the fertilizer in the upper region of the fertilizer tank 11 enters the material conveying passages 13, under the action of the driving of the first variable-speed driving assembly, the spiral conveying element 14 starts to work to convey the fertilizer in the material conveying passages 13 to the feeding pipe 12, which is then thrown out by the fertilizer spreading mechanism 2 to complete the fertilizer spreading work. By controlling the output rotating speed of the first variable-speed driving assembly, the rotating speed of the spiral conveying element 14 is controlled, and then the speed of the fertilizer supplied to the feeding pipe 12 is controlled, and then the fertilizer discharge amount per unit time is controlled.

[0037] In the embodiment, the number of the material conveying channels 13 is the same as the number of the screw conveyors 14, but the number of the material conveying channels 13 can be the same as or different from the number of the feeding pipes 12. When the number of the material conveying channels 13 is the same as the number of the feeding pipes 12, each feeding pipe 12 needs to correspond to one material conveying channel 13; preferably, the number of the material conveying channels 13 is different from the number of the feeding pipes 12, and the number of the feeding pipes 12 is twice the number of the material conveying channels 13, that is, one material conveying channel 13 corresponds to two feeding pipes 12, and the scheme is that the screw conveyor 14 includes two groups of helical blades with opposite rotation directions, the material conveying channel 13 is provided with a partition plate 15 adjacent to the two groups of helical blades, and the partition plate 15 divides the material conveying channel 13 into two sections and is in communication with different feeding pipes 12. In the embodiment, when the screw conveyor 14 rotates to work, the conveying directions of the fertilizer on the two sides of the screw conveyor 14 are different due to the opposite rotation directions of the two groups of helical blades, so that the two feeding pipes 12 can be fed, the number of the overall structure is reduced, the cost is lowered, and the working efficiency is improved.

[0038] The first variable speed driving assembly can be achieved by various ways such as belt driving transmission, chain wheel driving transmission, etc. In the embodiment, the first variable speed driving assembly includes a first variable speed driving motor 16, the output shaft of the first variable speed driving motor 16 is detachably connected with a first driving chain wheel 17, the screw conveyor 14 is detachably connected with a first driven chain wheel 18, and the first driving chain wheel 17 is in transmission connection with all the first driven chain wheels 18 through a first chain 19. The driving mode of the chain plus the chain wheel is adopted in the embodiment, compared with the belt transmission, there is no elastic sliding and slipping phenomenon, the average transmission ratio is accurate, the work is reliable, the efficiency is high, the transmission power is large, the overload capacity is strong, the transmission size is small under the same working condition, the required tension is small, the pressure acting on the shaft is small, and the work can be performed in harsh environments such as high temperature, humidity, dust, and pollution.

[0039] In the embodiment, a mounting platform is mounted on the top of the variable speed traveling mechanism 3, a material box rack is fixedly arranged on the top of the mounting platform, the material box rack is detachably connected with the fertilizer box 11, the material box rack supports the fertilizer box 11, the two ends of the screw conveyor 14 are rotatably connected with bearing seats, the bearing seats are detachably connected with the fertilizer box 11, the material conveying channel 13 is matched with the shape of the screw conveyor 14, and it is ensured that the screw conveyor 14 can convey the fertilizer in the material conveying channel 13. In the embodiment, the material conveying channel 13 and the screw conveyor 14 are horizontally arranged, the feeding pipe 12 is vertically arranged, the bottom of each end of the material conveying channel 13 is provided with a discharge port, and the discharge port is in communication with the inlet of the feeding pipe 12; the material conveying channel 13 is provided with a funnel shape at the discharge port, which is beneficial to guide the fertilizer into the feeding pipe 12.

[0040] Further optimization scheme, a kind of variable fertilizer distributor still includes control box 4, main controller is arranged in control box 4, main controller is electrically connected with satellite navigation module, gyroscope sensor and camera module. In the embodiment, variable speed travel mechanism 3 adopts all-terrain tracked chassis, can adapt to the complex topography of field, with high load, strong maneuverability, small turning radius and other characteristics. In the same spatial range, adopt all-terrain tracked chassis to carry larger quality fertilizer, thereby reduce the number of fertilizer loading, improve overall fertilization efficiency. In the embodiment, satellite navigation module is GPS / Beidou satellite navigation module, the utility model is combined with GPS / Beidou navigation technology, and gyroscope sensor can realize the detection of the position information of fertilizer distributor, and then realize the path planning and automatic driving of fertilizer distributor.

[0041] The soil parameters in the embodiment can be artificially input or monitored in real time. When the soil parameters are artificially input, the staff detects the land in the area to be fertilized in advance, including but not limited to soil moisture content, organic matter content, nitrogen, phosphorus and potassium content, trace element content, etc. The detected soil parameters are transmitted to the main controller, which determines the fertilizer application amount of different areas according to the required soil conditions for the crops to be planted. The main controller controls the first variable speed drive assembly to drive the feeding speed of the feeding element to the feeding pipe 12, controls the second variable speed drive assembly to control the rotation speed of the fertilizer distribution disc 21, and controls the travel speed of the variable speed travel mechanism 3, so as to apply different amounts of fertilizer to different areas.

[0042] When the soil parameters are monitored in real time, the fertilizer distributor further includes soil moisture instruments, nitrogen, phosphorus and potassium content detectors and other instruments. During the travel of the variable speed travel mechanism 3, the soil parameters of different areas are detected and transmitted to the main controller. The main controller determines the fertilizer application amount of different areas according to the required soil conditions for the crops to be planted. The main controller controls the first variable speed drive assembly to drive the feeding speed of the feeding element to the feeding pipe 12, controls the second variable speed drive assembly to control the rotation speed of the fertilizer distribution disc 21, and controls the travel speed of the variable speed travel mechanism 3, so as to apply different amounts of fertilizer to different areas.

[0043] The embodiment further includes a camera 5 and an alarm 6 fixed in front of the travel direction of the variable speed travel mechanism 3. The camera is a binocular camera, and the camera 5 is electrically connected with the camera module. The alarm light is located on the side of the control box, for warning the operator. The travel speed of the fertilizer distributor is monitored in real time by the GPS / Beidou satellite navigation module, gyroscope sensor, etc. The camera 5 is controlled by the camera module to collect the situation in front of the variable speed travel mechanism 3 in real time. The main controller receives the sensor signals through the above modules, processes the position information, and sends the processed results to the variable speed travel mechanism 3, to realize the control of the moving path of the variable fertilizer. Alternatively, the processed results are sent to the first variable speed drive assembly and the second variable speed drive assembly, to realize the real-time adjustment of the fertilizer amount, the fertilizer width, etc.

[0044] The above description of the embodiments is only used to help understand the method of the application and its core idea; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation and application range can be changed, and the above description should not be understood as a limitation of the application.

[0045] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents that the front and rear associated objects have an "or" relationship.

[0046] In the description of the utility model, it is understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0047] The above-described embodiments only describe the preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements of the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model shall fall within the protection scope of the utility model claim.

Claims

1. A variable rate fertilizer spreader characterized by, Include: Fertilizer supply mechanism (1), the fertilizer supply mechanism (1) includes fertilizer tank (11), the fertilizer tank (11) is provided with a feeding element inside, the feeding element is driven by a first variable speed drive assembly, the outlet of the feeding element is communicated with a feeding pipe (12), the feeding pipe (12) and the fertilizer tank (11) are detachably connected; Spreading mechanism (2), the spreading mechanism (2) includes a rotatingly arranged spreading disc (21), the spreading disc (21) is arranged and communicated with the outlet of the feeding pipe (12), the spreading disc (21) is driven to rotate by a second variable speed drive assembly; Variable speed travel mechanism (3), the fertilizer supply mechanism (1) and the spreading mechanism are detachably connected with the variable speed travel mechanism (3); Main controller, the first variable speed drive assembly, the second variable speed drive assembly and the variable speed travel mechanism (3) are electrically connected with the main controller, the main controller controls the feeding speed of the feeding element to the feeding pipe (12) according to the received and stored soil parameter feedback, controls the rotation speed of the spreading disc (21) and the travel speed of the variable speed travel mechanism (3).

2. The variable rate spreader of claim 1, wherein, The spreading disc (21) is provided with a plurality of spreading paddles (22) on the side close to the outlet of the feeding pipe (12), the spreading paddles (22) extend from the rotation point of the spreading disc (21) to the periphery of the spreading disc (21), and all the spreading paddles (22) are arranged on the circumference of the rotation point of the spreading disc (21).

3. The variable rate spreader of claim 2, wherein, The spreading mechanism (2) further comprises a spreading shield (27), the spreading shield (27) is provided with a mounting cavity for accommodating the spreading disc (21) inside, the spreading disc (21) is rotatably installed in the mounting cavity, the spreading shield (27) is provided with a feeding port (28) on the side close to the feeding pipe (12), and the spreading shield (27) is provided with a fertilizer ejection port away from the variable speed travel mechanism (3).

4. The variable rate spreader of claim 1, wherein, The spreading mechanism (2) is arranged on both sides of the variable speed travel mechanism (3) in the travel direction, and at least two groups of the spreading mechanism (2) are arranged on each side of the variable speed travel mechanism (3).

5. The variable rate spreader of claim 4, wherein, The second variable speed drive assembly includes a second variable speed drive motor (23), the output shaft of the second variable speed drive motor (23) is detachably connected with a second drive sprocket (24); each of the same side spreading disc (21) is detachably connected with a second driven sprocket (25), and the second drive sprocket (24) and all the second driven sprockets (25) are transmissionally connected through a second chain (26).

6. The variable rate spreader of claim 4, wherein, The fertilizer tank (11) is provided with a plurality of material conveying channels (13) at the bottom of the inner cavity, the material conveying channels (13) are perpendicular to the running direction of the variable-speed running mechanism (3); the feeding element is a spiral conveying element (14), the spiral conveying element (14) is rotationally arranged in each material conveying channel (13), the output end of the material conveying channel is communicated with the feeding pipe (12), and the spiral conveying element (14) is driven by the first variable-speed driving assembly.

7. The variable rate spreader of claim 6, wherein, The spiral conveying element (14) comprises two groups of spiral blades with opposite rotation directions, the material conveying channel (13) is provided with a partition plate (15) adjacent to the two groups of spiral blades, the partition plate (15) divides the material conveying channel (13) into two sections and is communicated with different feeding pipes (12).

8. The variable rate spreader of claim 7, wherein, The first variable-speed driving assembly comprises a first variable-speed driving motor (16), a first driving sprocket (17) is detachably connected to the output shaft of the first variable-speed driving motor (16), the spiral conveying element (14) is detachably connected with a first driven sprocket (18), and the first driving sprocket (17) is in driving connection with all the first driven sprockets (18) through a first chain (19).

9. The variable spreader of any of claims 1-8, wherein, The main controller is electrically connected with a satellite navigation module, a gyroscope sensor and a camera module.

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