Adjustable water and fertilizer online mixing fertilizer applicator

Abstract

An adjustable water and fertilizer online mixing fertilizer applicator comprises a platen frame, two sets of lifting roller units are installed at the bottom of the platen frame, each set of lifting roller unit is provided with two rollers, and the lifting roller units are used for controlling the platen frame to ascend and descend; a water storage tank, a mixing tank and a transfer tank are mounted on the bedplate frame, a first water pump is mounted on the water storage tank and connected with the mixing tank through a water inlet pipe, a mixing mechanism is arranged on the mixing tank, a second water pump is mounted on the mixing tank and connected with the transfer tank through a water outlet pipe; in conclusion, aiming at the problems existing in the prior art, by heating the water storage tank and stirring water and fertilizer, the granular fertilizer is fully dissolved, the water and the fertilizer are uniformly mixed, and by designing the adjustable fertilizer discharging mechanism, the fertilizer spraying range is adjusted as required, and the novel adjustable water and fertilizer online mixing fertilizer applicator not only solves the problems existing in the original equipment, but also improves the fertilizer spraying efficiency. And the efficiency and the quality of agricultural fertilization work are also improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to an adjustable online water-fertilizer mixing fertilization machine. Background Art

[0002] Integrated water-fertilizer technology is a modern agricultural high-efficiency production technology that combines irrigation and fertilization. It achieves the goal of efficient water and fertilizer saving, labor saving, and improving soil nutrients by evenly mixing soluble granular fertilizer with water and delivering it to the root area of ​​crops in a quantitative manner.

[0003] In the prior art, a patent with announcement number CN218789058U discloses an agricultural fertilizer applicator with controllable fertilizer spraying, including an operating frame, a fertilizing mechanism and a flushing mechanism, wherein the operating frame includes a platen frame and a digging mechanism, wherein the digging mechanism is installed at the front end of the platen frame, and the digging mechanism is fixedly connected to the platen frame, and the fertilizing mechanism is fixedly installed on the upper end surface of the platen frame, and the flushing mechanism is arranged on the right side of the fertilizing mechanism, and the flushing mechanism is fixedly connected to the platen frame. The fertilizing mechanism is installed on the platen frame, so that the fertilizer is conveniently put into the drainage shell through the fertilizing mechanism, and then sprayed onto the drainage shell through a bent water pipe by a water pump, so as to ensure that the fertilizer and water source are synchronously and stably discharged into the soil, and finally the digging wheel is driven to rotate by a driving motor to bury the fertilizer in the soil. However, although the equipment can discharge water and fertilizer into the soil together, since the fertilizer is discharged in granular form, the fertilizer dissolves slowly when it is directly mixed with water and discharged, which affects the soil's absorption efficiency of the fertilizer. In addition, the equipment cannot control the fertilizer spraying range, resulting in low operating efficiency and a single operating scenario. Summary of the invention

[0004] The present invention aims to provide an adjustable online water-fertilizer mixing fertilization machine, which solves the technical problems of uneven water-fertilizer mixing and inability to control the fertilizer spraying range of existing agricultural fertilization machines.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An adjustable online water-fertilizer mixing fertilizer applicator comprises a table frame, two sets of lifting roller units are installed at the bottom of the table frame, each set of lifting roller units has two rollers, and the lifting roller units are used to control the lifting of the table frame;

[0007] A water storage tank, a mixing box and a transfer box are installed on the table frame. A first water pump is installed on the water storage tank. The first water pump is connected to the mixing box through a water inlet pipe. A mixing mechanism is provided on the mixing box. A second water pump is installed on the mixing box. The second water pump is connected to the transfer box through a water outlet pipe. A third water pump is installed on the transfer box. The third water pump is connected to a fertilizer discharge hose. A spray head is installed at the end of the fertilizer discharge hose.

[0008] The mixing mechanism includes a transmission assembly, a stirring unit and a gap feeding unit. The stirring unit includes a driving shaft and a first mounting frame. The driving shaft is rotatably mounted in the mixing box, and the axis of the driving shaft coincides with the axis of the mixing box. A plurality of stirring rods are evenly distributed on the driving shaft. A first servo motor is mounted on the first mounting frame. The first servo motor is in transmission connection with the upper end of the driving shaft.

[0009] The intermittent feeding unit comprises a rotating shaft and a feeding pipe, a feeding port is provided on the top of the mixing box, the lower end of the feeding pipe is fixed at the feeding port, a fertilizer storage box is installed on the top of the feeding pipe, a bottom plate is fixed at the bottom of the fertilizer storage box, a fertilizer outlet is provided on the bottom plate, rectangular outlets are provided on two corresponding sides of the bottom of the fertilizer storage box, sliding plates are inserted at the two rectangular outlets, the sliding plates are located below the fertilizer outlets, the sliding plates can move horizontally on the two rectangular outlets, a fertilizer discharge outlet is provided on the sliding plate, the fertilizer discharge outlet corresponds to the fertilizer outlet, the lower end of the rotating shaft is rotatably installed on the top of the mixing box, a rocker is fixed on the upper end of the rotating shaft, a moving shaft is fixed on the end of the rocker, a long hole is provided on the end of the sliding plate, the length direction of the long hole is perpendicular to the length direction of the sliding plate, the moving shaft is penetrated in the long hole, and the moving shaft can move in the long hole;

[0010] The transmission assembly is arranged between the driving shaft and the rotating shaft, and the driving shaft drives the rotating shaft to rotate through the transmission assembly.

[0011] Furthermore, the lifting roller unit includes an electric telescopic rod and two outer sleeves, the upper ends of the two outer sleeves are fixed to the bottom of the table frame, a movable tube is inserted in each outer sleeve, a connecting plate is fixed between the two movable tubes, the two ends of the electric telescopic rod are connected to the bottom of the table frame and the middle of the connecting plate, and the two rollers of the lifting roller unit are installed at the lower ends of the two movable tubes.

[0012] Furthermore, a heating plate and a temperature detection probe are installed in the water tank, and a temperature controller and a temperature display are also installed on the water tank. The temperature controller is connected to the heating plate through a first cable, and the temperature display is connected to the temperature detection probe through a second cable.

[0013] Furthermore, the transmission assembly includes a first L-shaped plate and a transfer shaft, the first L-shaped plate is fixed on the top of the mixing box, and the two ends of the transfer shaft are rotatably mounted on the first L-shaped plate and the top of the mixing box respectively, a transmission gear and a first pulley are mounted on the transfer shaft, a driving gear is mounted on the driving shaft, the driving gear is meshed with the transmission gear, a second pulley is mounted on the rotating shaft, and the first pulley and the second pulley are connected by a belt.

[0014] Furthermore, a spray range adjustment mechanism is installed on the table frame, and the spray range adjustment mechanism includes a rotating shaft and a second L-shaped plate, and the second L-shaped plate is composed of a horizontal short plate and a vertical long plate. The lower end of the vertical long plate is fixed on the table frame, and a vertical guide hole begins to be provided on the vertical long plate. The cross section of the guide hole is cross-shaped, and a cross slider is provided in the guide hole. The cross slider can move up and down in the guide hole. Connecting rods and movable shafts are fixed at both ends of the cross slider, and a retaining sleeve is installed at the end of the connecting rod. The spray head is installed on the retaining sleeve;

[0015] The two ends of the rotating shaft are rotatably mounted on the horizontal short plate and the table frame respectively. A curved groove is opened on the outer wall of the rotating shaft. The end of the movable shaft is located in the curved groove. A second servo motor is installed on the horizontal short plate through a second mounting frame. The main shaft of the second servo motor is transmission-connected to the upper end of the rotating shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention realizes instant mixing of fertilizer with water before spraying by designing an adjustable online water-fertilizer mixing fertilization machine, which helps to accelerate the dissolution rate of fertilizer and further improve the absorption efficiency of fertilizer by soil;

[0018] (2) The present invention is provided with a temperature controller, a heating plate, a temperature display, a temperature detection probe and a water storage tank. After water is injected into the water storage tank, the temperature controller can be started to conveniently control the heating plate to heat the water in the water storage tank. At the same time, the temperature display and the temperature detection probe can be used to monitor the water temperature in the water storage tank in real time, so that the water in the water storage tank is always in a set constant temperature state. Injecting warm water into the mixing tank can accelerate the dissolution speed of the granular fertilizer in the mixing tank.

[0019] (3) The present invention is provided with a transfer box, a fertilizer discharge hose, a spray head, a second servo motor, a rotating shaft, a curved groove, a retaining sleeve and other mechanisms. When the fully mixed fertilizer is sprayed through the retaining sleeve, if it is necessary to adjust the fertilizer spraying range, the second servo motor is used to drive the rotating shaft to rotate, and the rotating shaft drives the connecting rod on the retaining sleeve to reciprocate in the vertical direction, so that the fertilizer spraying range can be conveniently adjusted;

[0020] (4) The present invention uses multiple servo motors to control the actions of different components, such as intermittent fertilizer delivery and spray head height adjustment, which improves the automation level of the equipment and reduces the need for manual operation;

[0021] In summary, the present invention aims at the problems existing in the prior art. By heating the water storage tank and stirring the water and fertilizer, the granular fertilizer is fully dissolved and the water and fertilizer are evenly mixed. By designing an adjustable fertilizer discharge mechanism, the fertilizer spraying range can be adjusted as needed. The new adjustable water-fertilizer online mixing fertilizer applicator not only solves the problems existing in the original equipment, but also improves the efficiency and quality of agricultural fertilization work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of an adjustable online water-fertilizer mixing fertilization machine of the present invention;

[0024] Figure 2 Schematic diagram of the internal structure of the mixing box;

[0025] Figure 3 It is a schematic diagram of the connection of the feed pipe, the fertilizer storage box and the sliding plate of the present invention;

[0026] Figure 4 It is a schematic diagram of the connection between the sliding plate, the fertilizer storage box and the driving shaft of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal structure of the water storage tank of the present invention;

[0028] Figure 6 It is a schematic diagram of the connection between the mixing box and the transfer box of the present invention;

[0029] Figure 7 It is a connection diagram of the rotating shaft, the adapter box and the fertilizer discharge hose of the present invention;

[0030] Figure 8 The figure is a connection diagram of the rotating shaft, the movable shaft, the cross slide block and the connecting rod of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention is further described in detail below in conjunction with embodiments.

[0033] A specific embodiment of an adjustable online water-fertilizer mixing fertilization machine provided by the present invention is as follows:

[0034] like Figure 1-4 As shown, an adjustable online water-fertilizer mixing fertilizer applicator comprises a table frame 1, a soil-fertilizer mixing mechanism 2 and two sets of lifting roller units are installed at the bottom of the table frame 1, the soil-fertilizer mixing mechanism 2 is the soil-planing mechanism of the patent name "an agricultural fertilizer applicator with controllable fertilizer spraying (Announcement No. CN218789058U)", and its specific structure has been disclosed in the patent and will not be repeated here; each set of lifting roller units has two rollers 4, and the lifting roller units are used to control the lifting of the table frame 1; the lifting roller unit comprises an electric telescopic rod 5 and two outer sleeves 6, the upper ends of the two outer sleeves 6 are fixed to the bottom of the table frame 1, each outer sleeve 6 is inserted with a movable tube 7, and a connecting plate 8 is fixed between the two movable tubes 7, and the two ends of the electric telescopic rod 5 are connected to the bottom of the table frame 1 and the middle of the connecting plate 8, and the two rollers 4 of the lifting roller unit are installed at the lower ends of the two movable tubes 7.

[0035] A water storage tank 9, a mixing tank 10 and a transfer box 11 are installed on the table frame 1. A first water pump 12 is installed on the water storage tank 9. The first water pump 12 is connected to the mixing tank 10 through a water inlet pipe 13. The mixing box 10 is provided with a mixing mechanism. A second water pump 14 is installed on the mixing box 10. The second water pump 14 is connected to the transfer box 11 through a water outlet pipe 15 (such as Figure 6 As shown), a third water pump 16 is installed on the adapter box 11, the third water pump 16 is connected to a fertilizer discharge hose 17, and a spray head 18 is installed at the end of the fertilizer discharge hose 17;

[0036] The mixing mechanism includes a transmission assembly, a stirring unit and a gap feeding unit. The stirring unit includes a driving shaft 19 and a first mounting frame 20. The driving shaft 19 is rotatably mounted in the mixing box 10, and the axis of the driving shaft 19 coincides with the axis of the mixing box 10. A plurality of stirring rods 21 are evenly distributed on the driving shaft 19. A first servo motor 22 is mounted on the first mounting frame 20. The first servo motor 22 is transmission-connected to the upper end of the driving shaft 19.

[0037] The intermittent feeding unit includes a rotating shaft 23 and a feeding pipe 24. A feeding port 25 is provided on the top of the mixing box 10. The lower end of the feeding pipe 24 is fixed at the feeding port 25. A fertilizer storage box 26 is installed on the top of the feeding pipe 24. A bottom plate 27 is fixed at the bottom of the fertilizer storage box 26. A fertilizer drop opening 28 is provided on the bottom plate 27. Rectangular openings 29 are provided on two corresponding sides of the bottom of the fertilizer storage box 26. Sliding plates 30 are inserted at the two rectangular openings 29. The sliding plates 30 are located below the fertilizer drop opening 28. The sliding plates 30 can move in the horizontal direction on the two rectangular openings 29. The sliding plates 30 are provided on the two rectangular openings 29. 0 is provided with a fertilizer discharge port 31, which corresponds to the fertilizer discharge port 28. The lower end of the rotating shaft 23 is rotatably installed on the top of the mixing box 10. A rocker 32 is fixed to the upper end of the rotating shaft 23, and a moving shaft 33 is fixed to the end of the rocker 32. A long hole 34 is provided at the end of the sliding plate 30, and the length direction of the long hole 34 is perpendicular to the length direction of the sliding plate 30. The moving shaft 33 is penetrated in the long hole 34 and can move in the long hole 34; the transmission assembly is arranged between the driving shaft 19 and the rotating shaft 23, and the driving shaft 19 drives the rotating shaft 23 to rotate through the transmission assembly.

[0038] The working process of the adjustable online water-fertilizer mixing fertilization machine of the present embodiment is as follows: the platform frame 1 can be moved to the field where fertilizer needs to be sprayed through the roller 4 at the bottom, and then the two sets of electric telescopic rods 5 are started synchronously. The platform frame 1 can be lowered by retracting the electric telescopic rods 5, so that the soil-fertilizer mixing mechanism 2 is in contact with the ground, and then warm water is injected into the water tank 9. A constant temperature control mechanism can also be set in the water tank 9 to perform constant temperature control on the injected warm water. Specifically, Figure 5 As shown, a heating plate 35 and a temperature detection probe 36 are installed in the water tank 9. A temperature controller 37 and a temperature display 38 are also installed on the water tank 9. The temperature controller 37 is connected to the heating plate 35 through a first cable 39, and the temperature display 38 is connected to the temperature detection probe 36 through a second cable 40. The temperature detection probe 36 is used to detect the temperature of the water in the water tank 9, and the heating plate 35 is used to heat the warm water in the water tank 9 to a specified temperature.

[0039] Then start the first water pump 12, and the first water pump 12 transports the constant temperature water in the water storage tank 9 to the mixing box 10 through the water inlet pipe 13; start the first servo motor 22, and the first servo motor 22 drives the driving shaft 19 to rotate, and the stirring rod 21 rotates in the mixing box 10 driven by the driving shaft 19; at the same time, the driving shaft 19 drives the rotating shaft 23 to rotate through the transmission assembly, and the rotating shaft 23 drives the rocker 32 to rotate, so that the moving shaft 33 at the end of the rocker 32 slides in the long hole 34 of the sliding plate 30, and finally pushes the sliding plate 30 to reciprocate horizontally at the bottom of the fertilizer storage box 26. During the movement of the sliding plate 30, the fertilizer outlet 28 and the fertilizer discharge outlet 31 are intermittently overlapped and closed, so that the fertilizer in the fertilizer storage box 26 can be intermittently discharged into the mixing box 10 in equal amounts, and finally stirred and mixed with the warm water in the mixing box 10.

[0040] Then the second water pump 14 is started, and the second water pump 14 transports the fully mixed liquid fertilizer in the mixing box 10 to the transfer box 11 for storage. When it is needed, the third water pump 16 is started, and the third water pump 16 transports the fertilizer water in the transfer box 11 to the fertilizer discharge hose 17, and then the fertilizer water is sprayed on the soil by the spray head 18. At the same time, the soil-fertilizer mixing mechanism 2 is started, and the soil after the fertilizer is sprayed is turned over by the soil-fertilizer mixing mechanism 2, so that the soil and fertilizer are evenly mixed, avoiding direct exposure on the soil to cause fertilizer waste

[0041] In order to realize the function of the transmission assembly, that is, to transmit power between the drive shaft 19 and the rotating shaft 23, as shown in FIG. Figure 4 As shown, the transmission assembly includes a first L-shaped plate 41 and a transfer shaft 42. The first L-shaped plate 41 is fixed on the top of the mixing box 10. Both ends of the transfer shaft 42 are rotatably mounted on the first L-shaped plate 41 and the top of the mixing box 10 respectively. A transmission gear 43 and a first pulley 44 are mounted on the transfer shaft 42. A driving gear 45 is mounted on the driving shaft 19. The driving gear 45 is meshed with the transmission gear 43. A second pulley 46 is mounted on the rotating shaft 23. The first pulley 44 is connected to the second pulley 46 by a belt 47.

[0042] The driving shaft 19 drives the transfer shaft 42 to rotate through the driving gear 45 and the transmission gear 43 , and the transfer shaft 42 drives the rotating shaft 23 to rotate through the first pulley 44 , the belt 47 and the second pulley 46 .

[0043] As another embodiment of the present invention, in order to control the fertilizer spraying range and improve the operation efficiency, the device can also be upgraded and optimized. Specifically, Figure 7As shown, a spray range adjustment mechanism is installed on the table frame 1, and the spray range adjustment mechanism includes a rotating shaft 48 and a second L-shaped plate 49. The second L-shaped plate 49 is composed of a horizontal short plate 50 and a vertical long plate 51. The lower end of the vertical long plate 51 is fixed on the table frame 1. A vertical guide hole 52 is formed on the vertical long plate 51. The cross section of the guide hole 52 is cross-shaped. A cross slider 53 is arranged in the guide hole 52. The cross slider 53 can move up and down in the guide hole 52. A connecting rod 54 and a movable shaft 55 (such as Figure 8 As shown), a retaining sleeve 56 is installed at the end of the connecting rod 54, and the spray head 18 is installed on the retaining sleeve 56;

[0044] The two ends of the rotating shaft 48 are rotatably mounted on the horizontal short plate 50 and the table frame 1 respectively. The outer wall of the rotating shaft 48 is provided with a curved groove 57. The end of the movable shaft 55 is located in the curved groove 57. A second servo motor 59 is installed on the horizontal short plate 50 through a second mounting frame 58. The main shaft of the second servo motor 59 is transmission-connected to the upper end of the rotating shaft 48.

[0045] When it is necessary to adjust the fertilizer spraying range, the second servo motor 59 is started, and the second servo motor 59 drives the rotating shaft 48 to rotate. The curved groove 57 follows the regular rotation of the rotating shaft 48, and the curved groove 57 drives the movable shaft 55 to move in the vertical direction. The movable shaft 55 drives the retaining sleeve 56 to move in the vertical direction through the cross slider 53 and the connecting rod 54, and finally changes the height of the spray head 18 on the retaining sleeve 56. Due to the change in the height of the spray head 18, its fertilizer spraying range is bound to change.

[0046] After the fertilizer spraying is finished, the two sets of electric telescopic rods 5 are started again, and the electric telescopic rods 5 are extended to move the table frame 1 upward, and the soil-fertilizer mixing mechanism 2 is separated from the ground, and the device can move normally by relying on the rollers 4.

[0047] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable online water-fertilizer mixing fertilization machine, characterized by: It includes a table frame, and two sets of lifting roller units are installed at the bottom of the table frame, each set of lifting roller units has two rollers, and the lifting roller units are used to control the lifting of the table frame; A water storage tank, a mixing box and a transfer box are installed on the table frame. A first water pump is installed on the water storage tank. The first water pump is connected to the mixing box through a water inlet pipe. A mixing mechanism is provided on the mixing box. A second water pump is installed on the mixing box. The second water pump is connected to the transfer box through a water outlet pipe. A third water pump is installed on the transfer box. The third water pump is connected to a fertilizer discharge hose. A spray head is installed at the end of the fertilizer discharge hose. The mixing mechanism includes a transmission assembly, a stirring unit and a gap feeding unit. The stirring unit includes a driving shaft and a first mounting frame. The driving shaft is rotatably mounted in the mixing box, and the axis of the driving shaft coincides with the axis of the mixing box. A plurality of stirring rods are evenly distributed on the driving shaft. A first servo motor is mounted on the first mounting frame. The first servo motor is in transmission connection with the upper end of the driving shaft. The intermittent feeding unit comprises a rotating shaft and a feeding pipe, a feeding port is provided on the top of the mixing box, the lower end of the feeding pipe is fixed at the feeding port, a fertilizer storage box is installed on the top of the feeding pipe, a bottom plate is fixed at the bottom of the fertilizer storage box, a fertilizer outlet is provided on the bottom plate, rectangular outlets are provided on two corresponding sides of the bottom of the fertilizer storage box, sliding plates are inserted at the two rectangular outlets, the sliding plates are located below the fertilizer outlets, the sliding plates can move horizontally on the two rectangular outlets, a fertilizer discharge outlet is provided on the sliding plate, the fertilizer discharge outlet corresponds to the fertilizer outlet, the lower end of the rotating shaft is rotatably installed on the top of the mixing box, a rocker is fixed on the upper end of the rotating shaft, a moving shaft is fixed on the end of the rocker, a long hole is provided on the end of the sliding plate, the length direction of the long hole is perpendicular to the length direction of the sliding plate, the moving shaft is penetrated in the long hole, and the moving shaft can move in the long hole; The transmission assembly is arranged between the driving shaft and the rotating shaft, and the driving shaft drives the rotating shaft to rotate through the transmission assembly.

2. The adjustable online water-fertilizer mixing fertilization machine according to claim 1, characterized in that: The lifting roller unit includes an electric telescopic rod and two outer sleeves. The upper ends of the two outer sleeves are fixed to the bottom of the table frame. A movable tube is inserted into each outer sleeve. A connecting plate is fixed between the two movable tubes. The two ends of the electric telescopic rod are connected to the bottom of the table frame and the middle of the connecting plate. The two rollers of the lifting roller unit are installed at the lower ends of the two movable tubes.

3. The adjustable online water-fertilizer mixing fertilization machine according to claim 1, characterized in that: A heating plate and a temperature detection probe are installed in the water tank. A temperature controller and a temperature display are also installed on the water tank. The temperature controller is connected to the heating plate through a first cable, and the temperature display is connected to the temperature detection probe through a second cable.

4. The adjustable online water-fertilizer mixing fertilization machine according to claim 1, characterized in that: The transmission assembly includes a first L-shaped plate and a transfer shaft. The first L-shaped plate is fixed on the top of the mixing box. Both ends of the transfer shaft are rotatably mounted on the first L-shaped plate and the top of the mixing box respectively. A transmission gear and a first pulley are mounted on the transfer shaft. A driving gear is mounted on the driving shaft. The driving gear is meshed with the transmission gear. A second pulley is mounted on the rotating shaft. The first pulley and the second pulley are connected by a belt.

5. The adjustable online water-fertilizer mixing fertilization machine according to claim 1, characterized in that: A spray range adjustment mechanism is installed on the table frame, and the spray range adjustment mechanism includes a rotating shaft and a second L-shaped plate. The second L-shaped plate is composed of a horizontal short plate and a vertical long plate. The lower end of the vertical long plate is fixed on the table frame. A vertical guide hole begins to be provided on the vertical long plate. The cross section of the guide hole is cross-shaped. A cross slider is provided in the guide hole. The cross slider can move up and down in the guide hole. Connecting rods and movable shafts are fixed at both ends of the cross slider. A retaining sleeve is installed at the end of the connecting rod. The spray head is installed on the retaining sleeve. The two ends of the rotating shaft are rotatably mounted on the horizontal short plate and the table frame respectively. A curved groove is opened on the outer wall of the rotating shaft. The end of the movable shaft is located in the curved groove. A second servo motor is installed on the horizontal short plate through a second mounting frame. The main shaft of the second servo motor is transmission-connected to the upper end of the rotating shaft.

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