An electrically driven air-conveying precise centralized fertilizer discharging system

Abstract

The present invention discloses an electrically driven air-conveying precision centralized fertilizer discharging system, comprising a material box, a housing, an internal seat, a fertilizer discharging shaft roller, a fertilizer stirring shaft, a motor, a control box, a satellite positioning module, a fan, an air-solid mixer, a residual sensor, a blockage sensor, etc. It is easy to be installed on a vehicle such as a rice transplanter or a tractor, and has the advantages of miniaturization, modularization, and intelligence. The control box synchronizes the rotation speed of the fertilizer discharging motor with the vehicle driving speed through the satellite positioning module, and can use air delivery to avoid blockage inside the fertilizer discharging system, and can adapt to the complex working conditions of paddy fields and cultivated land for precision fertilization. It can reduce resource waste and environmental pollution, improve the utilization rate of fertilizers, and ensure my country's food security.

Description

Technical Field

[0001] The invention belongs to the field of agricultural machinery, and relates to a fertilizing device for various crops in a field, and in particular to an electrically driven air-conveying precise centralized fertilizer discharge system. Background Art

[0002] Fertilizer is an important agricultural production material and an important way to increase food production. Fertilizer application has become one of the important means for many countries to increase food production. Side deep fertilization technology refers to the fertilization technology of digging trenches and covering soil in an area 3-5cm deep and 5cm on one side of the rice root system while the transplanter is working. Side deep fertilization can effectively reduce the loss and waste of fertilizers, improve work efficiency and fertilizer utilization, reduce labor intensity, and save costs and increase efficiency.

[0003] In agricultural mechanized production, the fertilizer discharge system is an important part of the fertilizer machinery that uses granular fertilizer as the object of sowing. At present, the one-device-one-row fertilization method is widely used in my country's production. The single external groove wheel fertilizer discharge system is widely used in fertilizer machinery. The working process of its main working component, the groove wheel, is similar to that of the external groove wheel seeding device. The characteristics of the fertilizer discharge system currently in circulation are that it relies on the ground wheel drive, has a simple structure, reliable operation and convenient maintenance, and is suitable for loose fertilizers and granular compound fertilizers with good fluidity. However, the fertilizer discharge system under a wide width has the problems of large size, bulkiness, ground wheel slippage, inconsistent and uneven fertilizer discharge in each row, manual adjustment of fertilizer application, and poor operation in various working conditions, such as side deep fertilization in paddy fields with rice transplanters. In addition, when discharging powdery and wet fertilizers, overhead and broken strips are prone to occur, and even worse, the fertilizer discharge groove wheel adheres and the fertilizer discharge pipe is blocked. In addition, in paddy fields or complex and bumpy fields, the ground wheel slips during the advancement of the machine, causing the driving layer to be disordered, which directly affects the stability of precision fertilization.

[0004] Therefore, the market needs a fertilizer system that can solve the above-mentioned drawbacks, which is miniaturized, modularized, and intelligent, and can be easily installed and disassembled on rice transplanters or tractors. During fertilization in paddy fields and land, air delivery can be used to avoid blockage inside the fertilizer system. The fertilizer system promotes continuous and even spreading of fertilizer on the ground, and can adapt to the complex working conditions of paddy fields and cultivated land for precision fertilization. It can reduce resource waste and environmental pollution, improve fertilizer utilization, and ensure my country's food security. Summary of the invention

[0005] The purpose of the present invention is to provide an electrically driven pneumatic precision centralized fertilizer discharging system. The fertilizer discharging system is designed by adopting the method of centralized fertilizer supply and pneumatic fertilizer delivery, simplifying and modularizing the fertilizer discharging system, receiving the satellite positioning module signal to synchronize the vehicle driving speed by the control box, adjusting the motor speed to realize the control of the fertilizer discharging amount, and using the residual sensor and the blockage sensor to realize the monitoring and early warning of the fertilizer status of the material box and the fertilizer outlet, so as to intelligently and accurately control the discharging of materials.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is that an electrically driven air-conveying precision centralized fertilizer discharge system includes a material box, a casing, an internal seat, a fertilizer discharge shaft roller, a fertilizer stirring shaft, a motor, a control box, a satellite positioning module, a fan, a gas-solid mixer, a residual sensor, and a blockage sensor. The material box of the fertilizer discharge system is installed on the casing, the internal seat is embedded in the middle of the casing, and the fertilizer discharge port of the internal seat faces the rear of the casing.

[0007] The internal seat body is equipped with a fertilizer discharge shaft roller, a fertilizer discharge tongue and an opening adjustment shaft. The fertilizer discharge shaft roller includes a fertilizer discharge hexagonal shaft, a fertilizer discharge groove wheel, a blank wheel and a shaft end blank wheel. The six fertilizer discharge groove wheels correspond to the fertilizer discharge tongue one by one, and the fertilizer discharge tongue is installed below the fertilizer discharge groove wheel; a fertilizer discharge shaft square flange bearing seat and a fertilizer discharge shaft round flange bearing seat are installed at both ends of the fertilizer discharge shaft roller. The fertilizer discharge shaft square flange bearing seat is fixed on the left side of the casing, the fertilizer discharge shaft round flange bearing seat is connected with a fertilizer discharge shaft end cover, and is installed on the right side of the casing by a flat hand screw, the fertilizer discharge tongue is hinged on the internal seat body by a hand-tightening locking shaft, the opening adjustment shaft is installed below the fertilizer discharge tongue, and a left top plate of the opening adjustment shaft and a right top plate of the opening adjustment shaft are respectively provided at both ends of the opening adjustment shaft, wherein the left top plate of the opening adjustment shaft and the right top plate of the opening adjustment shaft are respectively installed on the left and right sides of the casing by plum hand screws.

[0008] The fertilizer mixing shaft is arranged above the fertilizer discharge shaft roller, and a fertilizer mixing shaft square flange bearing seat and a fertilizer mixing shaft round flange bearing seat are respectively installed at both ends of the fertilizer mixing shaft. The fertilizer mixing shaft square flange bearing seat is fixedly mounted on the left side of the casing, and the fertilizer mixing shaft round flange bearing seat is fixedly mounted on the fertilizer mixing shaft end cover and is installed on the right side of the casing by a flat-blade hand screw.

[0009] The motor is installed at the lower part of the casing, and the motor output shaft is equipped with an active synchronous wheel. A driven fertilizer discharge synchronous wheel is installed on one end of the fertilizer discharge shaft roller, and a driven fertilizer stirring synchronous wheel is installed on the fertilizer stirring shaft. The active synchronous wheel, the driven fertilizer discharge synchronous wheel, and the driven fertilizer stirring synchronous wheel are arranged in parallel and are all sleeved on the inner side of the synchronous belt teeth. A synchronous belt tensioner is installed on one side of the smooth surface of the synchronous belt.

[0010] The gas-solid mixer is provided with an air inlet, a fertilizer inlet and a fertilizer outlet, the air inlet is connected to the fan, the fertilizer inlet is arranged at the fertilizer discharge outlet of the internal seat body, and the air inlet, the fertilizer inlet and the fertilizer outlet are communicated.

[0011] The control box is fixedly mounted on the other side of the lower interior of the casing, and the motor, satellite positioning module, residual sensor and clogging sensor are connected to the control box.

[0012] Preferably, the internal seat body is hinged with a fertilizer discharge tongue via a hand-tightening locking shaft, and the hand-tightening locking shaft can release the fertilizer discharge tongue, and after the fertilizer discharge tongue is released, the fertilizer discharge port of the internal seat body can pass through the material box.

[0013] Preferably, it is characterized in that the satellite positioning module is connected to a control box and a motor, and the control box can adjust the motor speed according to the signal of the satellite positioning module.

[0014] The beneficial effects of the present invention are:

[0015] 1) The fertilization device in the present invention adopts a centralized fertilizer supply and air-feeding method. The total amount of fertilizer is supplied, the centralized fertilizer discharge groove wheel is designed to reduce the volume, and the modular fertilizer discharge system structure is simplified for easy maintenance; the later air-feeding fertilization effectively helps the granular fertilizer to reach the ground through the fertilizer discharge pipe, reduces the blockage during the transportation process, and improves the working efficiency.

[0016] 2) The fertilization drive source is different from the common ground wheel drive and transmission shaft drive. The fertilization device in the present invention uses an electric motor as the drive source, which simplifies the transmission structure and realizes stepless speed drive to meet the application amount of different fertilizers for various crops such as machine transplanting side deep fertilization and rapeseed.

[0017] 3) Each fertilizer discharge trough is equipped with an independent fan and gas-solid mixer. This design makes the wind speed and pressure in each fertilizer discharge pipe independent, avoiding mutual influence between bypasses and achieving effective gas delivery.

[0018] 4) Synchronous control technology is adopted, and the fertilizer discharge amount is synchronized with the vehicle's travel speed. The control box can adjust the motor speed in real time through the speed signal returned by the satellite positioning module to accurately determine the final fertilizer discharge amount.

[0019] 5) The machine is designed and installed with surplus sensor and blockage sensor, which can respectively issue early warning of insufficient material box and blockage of fertilizer outlet to avoid ineffective operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial cross-sectional view of an electrically driven air-conveying precise centralized fertilizer discharge system of the present invention.

[0021] Figure 2 The present invention is a cross-sectional structural diagram of an electrically driven air-conveying precise centralized fertilizer discharge system.

[0022] Figure 3 It is a complete structural diagram of an electrically driven air-conveying precise centralized fertilizer discharge system of the present invention.

[0023] Figure 4 It is another complete structural diagram of an electrically driven air-conveying precise centralized fertilizer discharge system of the present invention.

[0024] Figure 5 The present invention discloses an assembly diagram of a fertilizer discharging shaft roller of an electrically driven air-conveying precise centralized fertilizer discharging system.

[0025] Figure 6 The present invention is an internal seat structure diagram of an electrically driven air-conveying precision centralized fertilizer discharge system.

[0026] exist Figure 1-6 1-residual sensor, 2-fertilizer stirring shaft, 3-driven fertilizer stirring synchronous wheel, 4-fertilizer discharge shaft roller, 401-fertilizer discharge groove wheel, 402-blank wheel, 403-shaft end blank wheel, 5-driven fertilizer discharge synchronous wheel, 6-synchronous belt tensioner, 7-opening adjustment shaft, 8-synchronous belt, 9-active synchronous wheel, 10-motor, 11-material box, 12-casing, 13-fan, 14-gas-solid mixer, 1401-air inlet, 1402-fertilizer inlet, 1403-fertilizer outlet, 15-control box, 16-blockage sensor , 17-satellite positioning module, 18-hexagonal shaft for fertilizer discharge, 19-fertilizer discharge tongue, 20-internal seat, 2001-fertilizer discharge port, 2002-fertilizer discharge port, 21-square flange bearing seat of fertilizer mixing shaft, 22-square flange bearing seat of fertilizer discharge shaft, 23-left top plate of opening adjustment shaft, 24-plum blossom hand screw, 25-end cover of fertilizer mixing shaft, 26-round flange bearing seat of fertilizer mixing shaft, 27-slotted hand screw, 28-end cover of fertilizer discharge shaft, 29-round flange bearing seat of fertilizer discharge shaft, 30-right top plate of opening adjustment shaft, 31-hand locking shaft. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described below with reference to the accompanying drawings.

[0028] The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation.

[0029] In this patent, it is necessary to understand that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. Therefore, it cannot be understood as a limitation of the present invention, and ordinary technicians in this field can understand the specific meanings of the above terms according to specific circumstances.

[0030] like Figure 1-6As shown, the present invention discloses an electrically driven pneumatic precision centralized fertilizer discharge system, an electrically driven pneumatic precision centralized fertilizer discharge system, comprising a material box 11, a casing 12, an internal seat 20, a fertilizer discharge shaft roller 4, a fertilizer stirring shaft 2, a motor 10, a control box 15, a residual sensor 1, a satellite positioning module 17, a fan 13, a gas-solid mixer 14, and a blockage sensor 16; the fertilizer discharge system material box 11 is installed on the casing 12; the internal seat 20 is embedded in the middle of the casing 12, the fertilizer discharge port 2002 of the internal seat 20 is facing the rear of the casing 12, and the fertilizer discharge port 2001 is facing the bottom of the casing 12.

[0031] like Figure 1-6 As shown, a fertilizer discharge shaft roller 4, a fertilizer discharge tongue 19, and an opening adjustment shaft 7 are installed on the internal seat body 20; the fertilizer discharge shaft roller 4 includes a fertilizer discharge hexagonal shaft 18, a fertilizer discharge groove wheel 401, a blank wheel 402 and a shaft end blank wheel 403, and the six fertilizer discharge groove wheels 401 correspond to the fertilizer discharge tongue 19 one by one, and the fertilizer discharge tongue 19 is installed below the fertilizer discharge groove wheel 401; the fertilizer discharge hexagonal shaft 18 penetrates and circumferentially fixes multiple fertilizer discharge groove wheels 401, and a blank wheel 402 is arranged between the fertilizer discharge groove wheels 401, and the two ends respectively penetrate the shaft end blank wheel 403, and the installation of the blank wheel 402 and the shaft end blank wheel 403 helps to improve the consistency of fertilizer discharge in each row; the two ends of the fertilizer discharge shaft roller 4 are respectively installed with a fertilizer discharge shaft square flange bearing seat 22 and a fertilizer discharge shaft round flange bearing seat 29 for axial fixation and reducing circumferential rotation resistance, the fertilizer discharge shaft square flange bearing seat 22 is fixedly mounted on the left side of the casing 12, and the fertilizer discharge shaft round flange bearing seat 29 is fixedly mounted on the left side of the casing 12. The flange bearing seat 29 is connected to the fertilizer discharge shaft end cover 28 and is installed on the right side of the casing 12 by a flat-blade hand screw 27. The fertilizer discharge shaft end cover 28 can be removed by hand during maintenance, and the axial fixation on one side of the fertilizer discharge shaft roller 4 can be cancelled and pulled out; the fertilizer discharge tongue 19 is hinged on the internal seat body 20 by a hand-tightening locking shaft 31, and the opening adjustment shaft 7 is installed below the fertilizer discharge tongue 19. The two ends of the opening adjustment shaft 7 are respectively provided with a left top plate 23 of the opening adjustment shaft and a right top plate 30 of the opening adjustment shaft, wherein the left top plate 23 of the opening adjustment shaft and the right top plate 30 of the opening adjustment shaft are respectively installed on the left and right sides of the casing 12 by plum-shaped hand screws 24. By simultaneously adjusting the left top plate 23 of the opening adjustment shaft and the right top plate 30 of the opening adjustment shaft, the opening adjustment shaft 7 can be moved up and down, and the distance between the fertilizer discharge tongue 19 and the fertilizer discharge groove wheel 401 can be adjusted, and finally the driving layer of the fertilizer discharge groove wheel 401 can be changed to achieve slight adjustment of the fertilizer discharge amount.

[0032] like Figure 1-4As shown, the fertilizer stirring shaft 2 is arranged above the fertilizer discharge shaft roller 4 to stir the granular fertilizer to prevent the granular fertilizer from being compacted and suspended and unable to smoothly enter the fertilizer discharge groove wheel 4; the two ends of the fertilizer stirring shaft 2 are respectively installed with a fertilizer stirring shaft square flange bearing seat 21 and a fertilizer stirring shaft round flange bearing seat 26 to achieve axial fixation and reduce circumferential resistance, the fertilizer stirring shaft square flange bearing seat 21 is fixedly mounted on the left side of the casing 12, the fertilizer stirring shaft round flange bearing seat 26 is fixedly mounted on the fertilizer stirring shaft end cover 25, and is installed on the right side of the casing 12 by a flat-type hand screw 27. The design of the flat-type hand screw 27 is convenient for manual disassembly of the fertilizer stirring shaft 2. After loosening the flat-type hand screw 27, the fertilizer stirring shaft end cover 25 can be removed, thereby, the fertilizer stirring shaft 2 can be pulled out to one side of the fertilizer stirring shaft end cover 25.

[0033] like Figure 1-2 As shown, the motor 10 is installed on the lower side of the casing 12, the output shaft of the motor 10 is installed with a driving synchronous wheel 9, the one end of the fertilizer discharge shaft roller 4 is installed with a driven fertilizer discharge synchronous wheel 5, the fertilizer stirring shaft 2 is installed with a driven fertilizer stirring synchronous wheel 3, the driving synchronous wheel 9, the driven fertilizer discharge synchronous wheel 5, and the driven fertilizer stirring synchronous wheel 3 are arranged in parallel and aligned, and are all sleeved on the inner side of the synchronous belt 8 with teeth, and the synchronous belt 8 is installed with a synchronous belt tensioner 6 on the smooth side; as shown Figure 2 View, when the motor 10 rotates clockwise, the active synchronous wheel 9 starts to rotate clockwise and drives the synchronous belt 8. Due to the action of the synchronous belt tensioner 6, the toothed side of the synchronous belt 8 is embedded and drives the driven fertilizer discharge synchronous wheel 5 and the driven fertilizer stirring synchronous wheel 3 to rotate clockwise. At the same time, the fertilizer stirring shaft 2 rotates clockwise to stir the granular fertilizer. The granular fertilizer enters the clockwise rotating fertilizer discharge groove wheel 401 and is forced to be pushed to the fertilizer discharge port 2001 of the internal seat 20 by the fertilizer discharge groove wheel 401.

[0034] like Figure 2 , 6 As shown, the gas-solid mixer 14 is provided with an air inlet 1401, a fertilizer inlet 1402 and a fertilizer outlet 1403, the air inlet 1401 is connected to the fan 13, the fertilizer inlet 1402 is placed at the fertilizer discharge port 2001 of the internal seat 20, and the air inlet 1401, the fertilizer inlet 1402 and the fertilizer outlet 1403 are connected; the granular fertilizer flows into the fertilizer inlet 1402 of the gas-solid mixer 14 from the fertilizer discharge port 2001 of the internal seat 20 due to gravity, and is mixed with the high-speed airflow provided by the fan 13 and pushed to the fertilizer outlet 1403.

[0035] like Figure 2 , 4 As shown, the internal seat body 20 is hinged with a fertilizer discharge tongue 19 through a hand-tightening locking shaft 31, and the hand-tightening locking shaft 31 can release the fertilizer discharge tongue 19. After the fertilizer discharge tongue 19 is released, the fertilizer discharge port 2002 of the internal seat body 20 can pass through the material box 11, so that the granular fertilizer in the material box 11 can be emptied during troubleshooting or maintenance.

[0036] like Figure 1-2 As shown, the control box 15 is fixedly installed on the other side of the lower part of the casing 12, and the motor 10, the satellite positioning module 17, the remaining sensor 1 and the blockage sensor 16 are connected to the control box 15; the control box 15 can adjust the speed of the motor 10 in real time according to the signal of the satellite positioning module 17, and the speed of the motor 10 changes in direct proportion to the speed of the satellite positioning module 17; the remaining sensor 1 is installed on the inner side of the upper part of the casing 12 to monitor the remaining amount of the material box 11. When the remaining height of the granular fertilizer in the material box 11 is lower than the installation height of the remaining sensor 1, the remaining sensor 1 returns a signal to the control box 15, and the control box 15 determines that there is a lack of fertilizer and stops the rotation of the motor 10, and prompts an alarm; the blockage sensor 16 is arranged in the middle of the gas-solid mixer 14 to monitor the blockage of the fertilizer outlet 1403. When granular fertilizer stays in the middle of the gas-solid mixer 14 and remains for a certain period of time, the blockage sensor 16 returns a signal to the control box 15, and the control box 15 determines that it is blocked and stops the rotation of the motor 10, and prompts an alarm.

[0037] An electrically driven air-conveying precision centralized fertilizer discharging system, the specific implementation steps are as follows:

[0038] The electrically driven air-conveying precision centralized fertilizer discharge system is installed on the walking machine, and the fertilizer discharge system control box 15 is connected to the DC 12V or 24V power supply of the walking machine. The granular fertilizer to be applied is added to the material box 11, and the fertilizer discharge parameters of the fertilizer discharge system are initially set on the control box 15, and then a calibration test is performed. The calibration test refers to the control box 15 controlling the motor 10 to rotate a fixed number of circles to discharge a certain mass of granular fertilizer. The value obtained by weighing the granular fertilizer is input into the control box, and the accuracy of the calibrated fertilizer discharge amount is achieved. After the walking machine enters the working state, the satellite positioning module 17 installed on the walking machine transmits the travel speed signal of the walking machine to the control box 15, and after analysis and processing by the control box 15, the control signal is sent to the motor 10, and the intelligent control system in the control box 15 synchronizes the travel speed of the walking machine with the speed of the motor 10. At this time, the motor 10 drives the active synchronous wheel 9 to rotate. Under the action of the synchronous belt tensioner 6, the synchronous belt 8 is driven by the active synchronous wheel 9 to rotate and transmit to the driven fertilizer mixing synchronous wheel 3 and the driven fertilizer discharge synchronous wheel 5; the driven fertilizer mixing synchronous wheel 3 is circumferentially fixed on the fertilizer mixing shaft 2, and the driven fertilizer discharge synchronous wheel 5 is also circumferentially fixed on the fertilizer discharge hexagonal shaft 18 in the fertilizer discharge shaft roller 4; and the active synchronous wheel 9, the driven fertilizer mixing synchronous wheel 3, and the driven fertilizer discharge synchronous wheel 5 all have tooth surfaces on the synchronous belt 8, so when the motor 10 rotates clockwise, the fertilizer mixing shaft 2 and the fertilizer discharge shaft roller 4 also rotate synchronously clockwise.

[0039] When the motor 10 rotates, the fertilizer in the material box 11 flows downward due to its own gravity, and the fertilizer mixing shaft 2 driven by the motor 10 rotates to promote the fluidity of the fertilizer, and the granular fertilizer flows into the fertilizer discharge groove wheel 401 in the fertilizer discharge shaft roller 4, and the granular fertilizer in the groove is forced to be discharged through the rotation of the fertilizer discharge groove wheel 401. The fertilizer flow rate can be adjusted by adjusting the distance between the fertilizer discharge tongue 19 and the fertilizer discharge groove wheel 401 to change the fertilizer discharge flow rate without changing the speed of the motor 10, and finally achieve a larger fertilizer discharge flow rate operation. The granular fertilizer forcibly discharged from the fertilizer discharge groove wheel 401 enters the fertilizer inlet 1402 of the gas-solid mixer 14 by gravity, and the fan 13 provides pressurized air to the air inlet 1401 and mixes the granular fertilizer and transports it to the fertilizer outlet 1403. The fertilizer outlet 1403 can be installed with a pipe of suitable diameter, and finally reaches the field through the pipe. Fertilization is achieved through an electrically driven air-transported precision centralized fertilizer discharge system.

[0040] If there is still granular fertilizer left in the material box 11 after the fertilization operation is completed, or if it is necessary to troubleshoot a fault or blockage, the hand-tightening locking shaft 31 can be removed to release the fertilizer discharge tongue 19, but the fertilizer discharge groove wheel 401 restricts the fertilizer discharge tongue 19 from being pulled out. At this time, the fertilizer discharge tongue 19 can fall to the inner bottom of the internal seat body 20 without being separated from the internal seat body 20, and finally the granular fertilizer in the material box 11 and the housing 12 flows along the rear end of the fertilizer discharge tongue 19 to the fertilizer discharge port 2002, and the remaining granular fertilizer in the material box is emptied.

[0041] The monitoring and control system in the control box 15 monitors the granular fertilizer in the material box 11 by the residual sensor 1. When it detects that there is a lack of fertilizer, the signal is transmitted to the control box 15. The control box 15 promptly alarms the user to avoid invalid operation, and the user can load the granular fertilizer in time; the blockage sensor 16 is located on the gas-solid mixer 14. When the material is blocked, the signal is transmitted to the control box 15. After logical judgment, the gas-solid mixer 14 where the blockage is located is promptly alarmed, and the user can clean it in time to ensure normal operation.

[0042] The embodiments of the present invention are described in detail above. It is obvious to those skilled in the art that various modifications and variations can be made to the embodiments without departing from the spirit and scope of the present invention. Meanwhile, the above specific embodiments cannot be considered to limit the scope of implementation of the present invention.

Claims

1. An electrically driven air-conveying precision centralized fertilizer discharge system, characterized in that: The invention comprises a material box (11), a casing (12), an internal seat (20), a fertilizer discharge shaft roller (4), a fertilizer stirring shaft (2), a motor (10), a control box (15), a residual sensor (1), a satellite positioning module (17), a fan (13), a gas-solid mixer (14), and a blockage sensor (16); the material box (11) is installed on the casing (12); the internal seat (20) is embedded in the middle of the casing (12); and the fertilizer discharge port (2002) of the internal seat (20) faces the rear of the casing (12); The internal seat body (20) is provided with a fertilizer discharge shaft roller (4), a fertilizer discharge tongue (19), and an opening adjustment shaft (7). The fertilizer discharge shaft roller (4) comprises a fertilizer discharge hexagonal shaft (18), a fertilizer discharge groove wheel (401), a blank wheel (402), and a shaft end blank wheel (403). The six fertilizer discharge groove wheels (401) correspond to the fertilizer discharge tongue (19) one by one, and the fertilizer discharge tongue (19) is installed below the fertilizer discharge groove wheel (401). The fertilizer discharge shaft roller (4) is provided with a fertilizer discharge shaft square flange bearing seat (22) and a fertilizer discharge shaft round flange bearing seat (29) at both ends. The fertilizer discharge shaft square flange bearing seat (22) is fixedly mounted on the left side of the housing (12). The fertilizer discharge shaft round flange bearing seat (29) is connected to a fertilizer discharge shaft end cover (28) and is installed on the right side of the housing (12) by a flat-blade hand screw (27). The fertilizer discharge tongue (19) is hinged on the internal seat body (20) by a hand-tightening locking shaft (31). The opening adjustment shaft (7) is installed below the fertilizer discharge tongue (19). The two ends of the opening adjustment shaft (7) are respectively provided with an opening adjustment shaft left top plate (23) and an opening adjustment shaft right top plate (30), wherein the opening adjustment shaft left top plate (23) and the opening adjustment shaft right top plate (30) are respectively installed on the left and right sides of the housing (12) by plum blossom hand screws (24); The fertilizer stirring shaft (2) is arranged above the fertilizer discharging shaft roller (4), and a fertilizer stirring shaft square flange bearing seat (21) and a fertilizer stirring shaft round flange bearing seat (26) are respectively installed at both ends of the fertilizer stirring shaft (2), the fertilizer stirring shaft square flange bearing seat (21) is fixedly mounted on the left side of the casing (12), and the fertilizer stirring shaft round flange bearing seat (26) is fixedly mounted on the fertilizer stirring shaft end cover (25), and is installed on the right side of the casing (12) by a flat-head hand screw (27); The motor (10) is installed at the lower part of the housing (12); the output shaft of the motor (10) is installed with a driving synchronous wheel (9); one end of the fertilizer discharge shaft roller (4) is installed with a driven fertilizer discharge synchronous wheel (5); the fertilizer stirring shaft (2) is installed with a driven fertilizer stirring synchronous wheel (3); the driving synchronous wheel (9), the driven fertilizer discharge synchronous wheel (5), and the driven fertilizer stirring synchronous wheel (3) are arranged in parallel and are all sleeved on the inner side of the teeth of the synchronous belt (8); a synchronous belt tensioner (6) is installed on one side of the smooth surface of the synchronous belt (8); The gas-solid mixer (14) is provided with an air inlet (1401), a fertilizer inlet (1402) and a fertilizer outlet (1403); the air inlet (1401) is connected to the fan (13); the fertilizer inlet (1402) is disposed at the fertilizer outlet (2001) of the internal seat (20); and the air inlet (1401), the fertilizer inlet (1402) and the fertilizer outlet (1403) are in communication; The control box (15) is fixedly mounted on the other side of the lower part of the housing (12), and the motor (10), the satellite positioning module (17), the residual sensor (1) and the clogging sensor (16) are connected to the control box (15); The internal seat body (20) is hinged with a fertilizer discharge tongue (19) via a hand-tightening locking shaft (31). The hand-tightening locking shaft (31) can release the fertilizer discharge tongue (19). After the fertilizer discharge tongue (19) is released, the fertilizer discharge port (2002) of the internal seat body (20) can pass through the material box (11). However, the fertilizer discharge groove wheel (401) restricts the fertilizer discharge tongue (19) from being pulled out. At this time, the fertilizer discharge tongue (19) can fall to the inner bottom of the internal seat body (20) without being separated from the internal seat body (20), and finally the granular fertilizer in the material box (11) and the housing (12) flows along the rear end of the fertilizer discharge tongue (19) to the fertilizer discharge port (2002), thereby emptying the remaining granular fertilizer in the material box (11); The fertilizer discharge shaft roller (4) is located at the outlet of the material box (11); the fertilizer discharge tongue (19) comprises a first fertilizer discharge section and a second fertilizer discharge section which are connected; the first fertilizer discharge section is arranged close to the fertilizer discharge outlet (2001) and is in a bent shape; the second fertilizer discharge section is arranged close to the fertilizer discharge outlet (2002) and is in a straight line shape; Before the fertilizer discharge tongue (19) is released, one end of the fertilizer discharge tongue (19) close to the fertilizer discharge port (2002) abuts against a side of the bottom of the material box (11) away from the fertilizer discharge port (2001), and a gap exists between the side of the fertilizer discharge tongue (19) close to the fertilizer discharge port (2001) and the fertilizer discharge groove wheel (401).

2. The electrically driven air-conveying precise centralized fertilizer discharge system according to claim 1 is characterized in that: The satellite positioning module (17) is connected to the control box (15) and the motor (10), and the control box (15) can adjust the rotation speed of the motor (10) according to the signal of the satellite positioning module (17).

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