Fertilizing and seeding machine with function of automatically analyzing and adjusting fertilizing amount

Abstract

The invention discloses a combined seed and fertilizer drill with an automatic fertilizing amount analyzing and adjusting function, which comprises a fertilizing frame, a fertilizer box is fixedly connected to the outer surface of the upper end of the fertilizing frame, a connecting frame connected with a tumbril is arranged on the outer surface of one side of the fertilizing frame, and a material separating frame is arranged in the fertilizer box; the two ends of the material separating frame penetrate to the upper part of the fertilizer box and are fixedly connected with a connecting plate; according to the invention, the change value of the fertilizer in the material separating frame in unit time is analyzed and calculated according to the pressure value of the material separating frame detected by the pressure sensor in real time, and the rotation frequency of the screw rod and the shaking frequency of the material separating frame are adjusted according to the comparison result of the change value of the fertilizer in the material separating frame in unit time and the standard change value, so that the fertilizer in the material separating frame is separated. The falling speed of the fertilizer is controlled as required, so that the fertilizing amount is always in a stable state, and the fertilizing quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a fertilizer sowing machine with automatic analysis and adjustment functions for fertilizer application. Background Art

[0002] Agricultural machinery refers to various machines used in the process of crop planting and animal husbandry production, as well as in the primary processing and handling of agricultural and livestock products. Fertilizer spreaders have undergone years of improvement and have the characteristics of small size, light weight, and easy operation. Using fertilizer spreaders to apply fertilizer can reduce farmers' labor intensity, improve fertilizer utilization, and reduce environmental pollution.

[0003] A Chinese patent (publication number: CN114846973B) discloses an agricultural fertilizer spreader, which uses a rotating partition push paddle to continuously slide and discharge fertilizer, effectively preventing fertilizer blockage, improving fertilization quality, and preventing solid fertilizer from adhering to the inside of the fertilizer spreader, further preventing blockage and improving fertilization effect;

[0004] However, although the above patent content can prevent fertilizer from being blocked during the feeding process, the fertilizer can only be spread in a free-falling manner through the feeding port, which not only has a small coverage area, but also easily causes the fertilizer to accumulate in ridges on the land surface and cause seedling burns. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to provide a fertilizer seeder with the function of automatic analysis and adjustment of fertilizer amount.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a fertilizer seeding machine with automatic analysis and adjustment function of fertilizer amount, comprising a fertilizer frame, the upper end outer surface of the fertilizer frame is fixedly connected to a fertilizer box, and the outer surface of one side of the fertilizer frame is provided with a connecting frame connected to a fertilizer vehicle, the inside of the fertilizer box is provided with a material partition frame, and the two ends of the material partition frame pass through the top of the fertilizer box and are fixedly connected with a connecting plate, and the lower end outer surface of the fertilizer frame is fixedly connected with a plurality of groups of fertilizer pipes at equal distances, and the fertilizer pipes are communicated with the fertilizer box;

[0007] Both sides of the partition frame are inclined at 45 degrees toward the middle of the fertilizer box, and the bottom of the partition frame is fixedly connected to an arc frame. The arc frame and the partition frame are an integrated structure, and the arc frame and the outer surfaces of both sides of the partition frame near the bottom are hollow. An adjustment mechanism for controlling the amount of fertilizer is provided at a position inside the fertilizer box corresponding to the arc frame, and a fertilizer assembly is provided between several groups of fertilizer pipes.

[0008] Furthermore, the adjustment mechanism includes a spiral rod, a fixed disk, a limit block and an electric push rod; a spiral rod is rotatably arranged at a position inside the fertilizer box corresponding to the arc frame, and both ends of the spiral rod pass through the outside of the fertilizer box and are spirally connected thereto, one end of the spiral rod is fixedly connected to the fixed block, and the other end is fixedly connected to the fixed disk, an annular groove is provided on the outer surface of one side of the fixed disk, and the inner part of the annular groove is movably connected to the limit block, an electric push rod is arranged on the outer surface of one side of the fertilizer box at a position corresponding to the limit block, and one end of the electric push rod is fixedly connected to the limit block.

[0009] Furthermore, a plurality of groups of driving members are fixedly connected to the outer surface of the spiral rod at equal distances, and each group of driving members includes a plurality of driving rods 1 and a driving rod 2, and the length of the driving rod 2 is greater than the length of the driving rod 1.

[0010] Furthermore, movable grooves are provided on the outer surface of the upper end of the fertilizer box at positions corresponding to the two groups of connecting plates, and the interior of the movable grooves is movably connected with support columns and springs, one end of the spring is fixedly connected to the movable column, and the other end is fixedly connected to the movable groove, and a pressure sensor is provided between the movable groove and the corresponding connecting plate.

[0011] Furthermore, the fertilization assembly includes a connecting pipe rotatably connected to the bottom end of the fertilization pipe, and the bottom end of the connecting pipe is fixedly connected to a fertilization plate, a fertilizer cavity is opened inside the fertilization plate, and a plurality of groups of spreading holes communicating with the fertilizer cavity are opened on the outer surface of the fertilization plate, and the bottom end of the inner surface of the fertilization plate is inclined in an arc shape to the surroundings.

[0012] Furthermore, the outer surfaces of several groups of the connecting pipes are fixedly connected with transmission wheels, and conveyor belts are transmission-connected between several groups of the transmission wheels. A motor is arranged at a position corresponding to the outer surface of the bottom end of the fertilizer rack and a group of connecting pipes located at the edge, and a gear 1 is fixedly connected to the output end of the motor, and a gear 2 is fixedly connected to the outer surface of the connecting pipe corresponding to the gear 1, and the gear 2 is meshed with the gear 1, and a turbine blade is fixedly connected to the outer surface of each group of the connecting pipes at a position between the transmission wheel and the fertilizer plate.

[0013] Furthermore, a discharge hole is provided at the bottom end of the fertilizer box at a position corresponding to the fertilizer pipe, and the bottom end of the inner surface of the fertilizer box is inclined toward the discharge hole. A connecting column is fixedly connected to the outer surface of the lower end of the arc frame at a position corresponding to the discharge hole, and one end of the connecting column passes through the inside of the discharge hole and is fixedly connected to a pushing column.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. The present invention not only utilizes an arc frame to drive the connecting column and the pushing column to move up and down, thereby avoiding the situation that the fertilizer is blocked inside the connecting pipe, but also utilizes a motor, a gear 1, a gear 2 and a conveyor belt to cooperate with each other to make the fertilizer disc drive the fertilizer inside it to rotate, and the fertilizer is evenly thrown out to the surface of the land through the spreading hole. Compared with directly falling on the land through the connecting pipe, the fertilizer is evenly spread through the spreading hole in a rotating manner, which can avoid the burning of seedlings due to fertilizer accumulation. In this process, the turbine blades rotate with the connecting pipe, so that the airflow is diffused from the connecting pipe to the surroundings, which speeds up the airflow rate around the fertilizer disc, expands the coverage area during the fertilizer spreading process, and improves the fertilization efficiency;

[0016] 2. The present invention sets a control panel to detect the pressure value of the partition frame in real time through the pressure sensor, analyzes and calculates the change value of the fertilizer inside the partition frame per unit time, and adjusts the rotation frequency of the spiral rod and the shaking frequency of the partition frame according to the comparison result of the change value of the fertilizer inside the partition frame per unit time and the standard change value, and then controls the falling rate of the fertilizer according to demand, so that the amount of fertilizer is always in a stable state, thereby improving the quality of fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 A combined view of the regulating mechanism and the fertilizing assembly of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the regulating mechanism of the present invention;

[0020] Figure 4 It is a combined view of a fertilizer plate and a fertilizer box of the present invention;

[0021] Figure 5 It is a combined view of the fixing plate and the limiting block of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the fertilization assembly of the present invention;

[0023] Figure 7 It is a combined view of the fertilizer disc and the turbine blade of the present invention.

[0024] Figure numerals: 1. Fertilizer rack; 2. Fertilizer box; 3. Material partition frame; 4. Connecting plate; 5. Arc frame; 6. Adjusting mechanism; 61. Screw rod; 62. Fixed plate; 63. Limiting block; 64. Electric push rod; 65. Driving rod one; 66. Driving rod two; 67. Movable groove; 68. Support column; 69. Spring; 7. Fertilizer assembly; 71. Connecting pipe; 72. Fertilizer plate; 73. Spreading hole; 74. Transmission wheel; 75. Conveyor belt; 76. Motor; 77. Gear one; 78. Gear two; 79. Turbine blade; 710. Connecting column; 711. Push column. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1: Figure 1 and Figure 2 As shown, the present invention provides a fertilizer seeding machine with automatic analysis and adjustment function of fertilizer amount, comprising a fertilizer frame 1, a fertilizer box 2 is fixedly connected to the upper outer surface of the fertilizer frame 1, and a connecting frame connected to a fertilizer vehicle is provided on one side outer surface of the fertilizer frame 1;

[0027] A material partition frame 3 is provided inside the fertilizer box 2, and both ends of the material partition frame 3 penetrate to the top of the fertilizer box 2 and are fixedly connected with a connecting plate 4. A plurality of groups of fertilizer pipes are fixedly connected at equal distances to the outer surface of the lower end of the fertilizer rack 1, and the fertilizer pipes are communicated with the fertilizer box 2, and the fertilizer rack 1 is connected to the fertilizer vehicle through the connecting frame;

[0028] Both sides of the partition frame 3 are inclined at 45 degrees toward the middle of the fertilizer box 2, and the bottom of the partition frame 3 is fixedly connected with an arc frame 5. The arc frame 5 and the partition frame 3 are an integrated structure, and the outer surfaces of the arc frame 5 and both sides of the partition frame 3 near the bottom are hollow. Fertilizer is poured into the interior of the partition frame 3, and then the fertilizer vehicle is started to pull the fertilizer frame 1 to move to fertilize the land.

[0029] Embodiment 2: Figure 2-5 As shown, the difference between this embodiment and embodiment 1 is that an adjusting mechanism 6 for controlling the amount of fertilizer is provided at a position corresponding to the arc frame 5 inside the fertilizer box 2, and the adjusting mechanism 6 includes a screw rod 61, a fixing plate 62, a limit block 63 and an electric push rod 64; a screw rod 61 is rotatably provided at a position corresponding to the arc frame 5 inside the fertilizer box 2, and both ends of the screw rod 61 penetrate to the outside of the fertilizer box 2 and are spirally connected thereto;

[0030] One end of the spiral rod 61 is fixedly connected to a fixed block, and the other end is fixedly connected to a fixed disk 62. An annular groove is provided on the outer surface of one side of the fixed disk 62, and a limit block 63 is movably connected inside the annular groove. An electric push rod 64 is provided at a position corresponding to the limit block 63 on the outer surface of one side of the fertilizer box 2, and one end of the electric push rod 64 is fixedly connected to the limit block 63. When the fertilizer vehicle pulls the fertilizer rack 1 to move, the electric push rod 64 repeatedly pushes and pulls the fixed disk 62, and the spiral rod 61 rotates forward and backward during the movement of the fixed disk 62.

[0031] The outer surface of the spiral rod 61 is fixedly connected with several groups of driving parts at equal distances, and each group of driving parts includes several driving rods 1 65 and one driving rod 2 66, and the length of the driving rod 2 66 is greater than the length of the driving rod 1 65. When the driving rod 2 66 rotates to the inside of the arc frame 5, the arc frame 5 drives the connecting plate 4 to move downward under the push of the driving rod 2 66.

[0032] The upper outer surface of the fertilizer box 2 and the positions corresponding to the two groups of connecting plates 4 are both provided with movable grooves 67, and the inside of the movable grooves 67 is movably connected with a support column 68 and a spring 69, one end of the spring 69 is fixedly connected to the movable column, and the other end is fixedly connected to the movable groove 67. When the driving rod 66 rotates to the outside of the arc frame 5, the connecting plate 4 drives the arc frame 5 to move upward under the action of the spring 69, so that the fertilizer is moved when the spiral rod 61 rotates forward and backward;

[0033] In the process of evenly distributing the fertilizer, the arc frame 5 shakes up and down, and the fertilizer falls evenly and is scattered onto the land through the connecting pipe 71 and the fertilizer plate 72. A pressure sensor is provided between the movable groove 67 and the corresponding connecting plate 4, and a control panel is provided on one side of the fertilizer box 2. In the process of evenly falling the fertilizer, the pressure sensor collects the pressure value of the partition frame 3 in real time and sends it to the control panel.

[0034] In the process of fertilizer falling evenly, the pressure sensor collects the pressure value of the partition frame 3 in real time and sends it to the control panel. The controller in the control panel calculates the change value of the fertilizer inside the partition frame 3 per unit time and compares it with the standard change value. When the change value of the fertilizer inside the partition frame 3 per unit time is greater than the standard change value, a reduction signal is generated to control the electric push rod 64 to reduce the frequency of pushing and pulling the limit block 63, thereby reducing the shaking frequency of the partition frame 3 and slowing down the falling rate of the fertilizer.

[0035] When the change value of the fertilizer inside the partition frame 3 per unit time is greater than the standard change value, an increase signal is generated to control the electric push rod 64 to increase the frequency of pushing and pulling the limit block 63, thereby increasing the shaking frequency of the partition frame 3 and accelerating the falling rate of the fertilizer.

[0036] Embodiment 3: Figure 4-7As shown, the difference between this embodiment and embodiment 1 and embodiment 2 is that a fertilizer assembly 7 is arranged between several groups of fertilizer pipes, and the fertilizer assembly 7 includes a connecting pipe 71 rotatably connected to the bottom end of the fertilizer pipe, and the bottom end of the connecting pipe 71 is fixedly connected to a fertilizer plate 72. After the fertilizer falls through the arc frame 5 and the partition frame 3, it falls into the inside of different discharge holes and enters the corresponding fertilizer plate 72. A fertilizer cavity is opened inside the fertilizer plate 72, and a plurality of groups of spreading holes 73 communicating with the fertilizer cavity are opened on the outer surface of the fertilizer plate 72. The bottom end of the inner surface of the fertilizer plate 72 is arc-shaped and inclined to the surroundings.

[0037] The outer surfaces of the several groups of connecting pipes 71 are all fixedly connected with transmission wheels 74, and the several groups of transmission wheels 74 are transmission-connected with conveyor belts 75. The outer surface of the bottom end of the fertilizer rack 1 is provided with a motor 76 at a position corresponding to a group of connecting pipes 71 located at the edge, and the output end of the motor 76 is fixedly connected with a gear 1 77, and the outer surface of the connecting pipe 71 corresponding to the gear 1 77 is fixedly connected with a gear 2 78, and the gear 2 78 is meshed with the gear 1 77;

[0038] The motor 76 drives the gear 1 77 to drive the gear 2 78, and the gear 2 78 drives the corresponding connecting pipe 71 to rotate. Several groups of connecting pipes 71 rotate simultaneously under the drive of the conveyor belt 75, and the fertilizer is evenly spread on the land surface through the spreading holes 73. The outer surface of each group of connecting pipes 71 is fixedly connected with turbine blades 79 at a position between the transmission wheel 74 and the fertilizer plate 72. The turbine blades 79 rotate with the connecting pipes 71, so that the airflow is diffused from the connecting pipes 71 to the surroundings, thereby accelerating the airflow rate around the fertilizer plate 72, expanding the coverage area during the fertilizer spreading process, and improving the fertilization efficiency.

[0039] Embodiment 4: Figure 4 and Figure 6 As shown, the difference between this embodiment and embodiment 1, embodiment 2 and embodiment 3 is that a discharge hole is opened at the bottom end of the fertilizer box 2 at a position corresponding to the fertilizer pipe, and the bottom end of the inner surface of the fertilizer box 2 is inclined toward the discharge hole, and a connecting column 710 is fixedly connected to the outer surface of the lower end of the arc frame 5 at a position corresponding to the discharge hole, and one end of the connecting column 710 passes through the inside of the discharge hole and is fixedly connected to a pushing column 711. When the arc frame 5 shakes up and down with the connecting plate 4, the connecting column 710 drives the pushing column 711 to move up and down to clear the inside of the connecting pipe 71.

[0040] The working process and principle of the present invention are as follows:

[0041] Step 1: Connect the fertilizer rack 1 to the fertilizer vehicle through the connecting frame, then pour fertilizer into the partition frame 3, and then start the fertilizer vehicle to pull the fertilizer rack 1 to move and fertilize the land;

[0042] Step 2: When the fertilizer spreading vehicle pulls the fertilizer spreading frame 1 to move, the electric push rod 64 repeatedly pushes and pulls the fixed plate 62, and the spiral rod 61 drives the driving rod to rotate forward and reversely while moving with the fixed plate 62. When the driving rod 66 rotates to the inside of the arc frame 5, the arc frame 5 drives the connecting plate 4 to move downward under its push, and when the driving rod 66 rotates to the outside of the arc frame 5, the connecting plate 4 drives the arc frame 5 to move upward under the action of the spring 69. Therefore, when the spiral rod 61 rotates forward and reversely to move the fertilizer to make it evenly distributed, the arc frame 5 shakes up and down, and the fertilizer falls evenly and is sprinkled onto the land through the connecting pipe 71 and the fertilizer spreading plate 72;

[0043] Step 3: In the process of the fertilizer falling evenly, the pressure sensor collects the pressure value of the partition frame 3 in real time and sends it to the control panel. The control panel calculates the change value of the fertilizer inside the partition frame 3 per unit time and compares it with the standard change value. When the change value of the fertilizer inside the partition frame 3 per unit time is greater than the standard change value, the control panel controls the frequency of the electric push rod 64 pushing and pulling the limit block 63 to reduce it, thereby reducing the shaking frequency of the partition frame 3 and slowing down the falling rate of the fertilizer.

[0044] When the change value of the fertilizer inside the material separation frame 3 in a unit time is greater than the standard change value, the control panel controls the frequency of the electric push rod 64 pushing and pulling the limit block 63 to increase it, thereby increasing the shaking frequency of the material separation frame 3 and accelerating the falling rate of the fertilizer;

[0045] Step 4: After the fertilizer passes through the arc frame 5 and the partition frame 3, it falls into different discharge holes and enters the corresponding fertilizer disc 72. The motor 76 drives the gear 1 77 to drive the gear 2 78. The gear 2 78 drives the corresponding connecting pipe 71 to rotate. Several groups of connecting pipes 71 rotate at the same time under the transmission of the conveyor belt 75. The fertilizer is evenly spread on the land surface through the spreading hole 73. During this process, the turbine blades 79 rotate with the connecting pipe 71, so that the airflow diffuses from the connecting pipe 71 to the surroundings, speeding up the airflow rate around the fertilizer disc 72, expanding the coverage area during the fertilizer spreading process, and improving the fertilization efficiency.

[0046] Step 5: When the arc frame 5 shakes up and down with the connecting plate 4 , the connecting column 710 drives the pushing column 711 to move up and down to clear the inside of the connecting pipe 71 to avoid blockage inside the connecting pipe 71 .

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fertilizer seeding machine with automatic analysis and adjustment function of fertilizer application amount, comprising a fertilizer frame (1), characterized in that: The upper outer surface of the fertilizer rack (1) is fixedly connected to a fertilizer box (2), and a connecting frame connected to a fertilizer vehicle is provided on one side outer surface of the fertilizer rack (1), a material partition frame (3) is provided inside the fertilizer box (2), and both ends of the material partition frame (3) penetrate to the top of the fertilizer box (2) and are fixedly connected to a connecting plate (4), and a plurality of groups of fertilizer pipes are fixedly connected to the lower outer surface of the fertilizer rack (1) at equal distances, and the fertilizer pipes are in communication with the fertilizer box (2); Both sides of the material separator frame (3) are inclined at 45 degrees toward the middle of the fertilizer box (2), and the bottom of the material separator frame (3) is fixedly connected to an arc frame (5), the arc frame (5) and the material separator frame (3) are an integrated structure, and the outer surfaces of the arc frame (5) and both sides of the material separator frame (3) near the bottom are hollowed out, and an adjustment mechanism (6) for controlling the amount of fertilizer is arranged at a position corresponding to the arc frame (5) inside the fertilizer box (2), and a fertilizer assembly (7) is arranged between the plurality of groups of fertilizer pipes.

2. A fertilizing and seeding machine with automatic analysis and adjustment function of fertilizing amount according to claim 1, characterized in that: The adjusting mechanism (6) comprises a spiral rod (61), a fixed disk (62), a limit block (63) and an electric push rod (64); a spiral rod (61) is rotatably arranged at a position corresponding to the arc frame (5) inside the fertilizer box (2), and both ends of the spiral rod (61) penetrate the outside of the fertilizer box (2) and are spirally connected thereto; one end of the spiral rod (61) is fixedly connected to the fixed block, and the other end is fixedly connected to the fixed disk (62); an annular groove is provided on the outer surface of one side of the fixed disk (62), and the limit block (63) is movably connected inside the annular groove; an electric push rod (64) is arranged at a position corresponding to the limit block (63) on the outer surface of one side of the fertilizer box (2), and one end of the electric push rod (64) is fixedly connected to the limit block (63).

3. A fertilizing and seeding machine with automatic analysis and adjustment function of fertilizing amount according to claim 2, characterized in that: The outer surface of the spiral rod (61) is fixedly connected with a plurality of groups of driving parts at equal distances, each group of driving parts includes a plurality of driving rods 1 (65) and a driving rod 2 (66), and the length of the driving rod 2 (66) is greater than the length of the driving rod 1 (65).

4. A fertilizing and seeding machine with automatic analysis and adjustment function of fertilizer application amount according to claim 3, characterized in that: The upper outer surface of the fertilizer box (2) and the positions corresponding to the two groups of connecting plates (4) are both provided with movable grooves (67), and the interior of the movable grooves (67) is movably connected with a support column (68) and a spring (69), one end of the spring (69) is fixedly connected to the movable column, and the other end is fixedly connected to the movable groove (67), and a pressure sensor is provided between the movable groove (67) and the corresponding connecting plate (4).

5. The fertilizing and seeding machine with automatic analysis and adjustment function of fertilizing amount according to claim 1 is characterized in that: The fertilizing assembly (7) comprises a connecting pipe (71) rotatably connected to the bottom end of the fertilizing pipe, and the bottom end of the connecting pipe (71) is fixedly connected to a fertilizing plate (72), a fertilizer cavity is provided inside the fertilizing plate (72), and a plurality of groups of spreading holes (73) communicating with the fertilizer cavity are provided on the outer surface of the fertilizing plate (72), and the bottom end of the inner surface of the fertilizing plate (72) is arc-shaped and inclined in all directions.

6. A fertilizer seeding machine with automatic analysis and adjustment function of fertilizer application amount according to claim 5, characterized in that: The outer surfaces of the plurality of groups of connecting pipes (71) are fixedly connected with transmission wheels (74), and a conveyor belt (75) is transmission-connected between the plurality of groups of transmission wheels (74). A motor (76) is provided on the outer surface of the bottom end of the fertilizer applying frame (1) at a position corresponding to a group of connecting pipes (71) located at the edge.

7. The fertilizing and seeding machine with automatic analysis and adjustment function of fertilizing amount according to claim 6 is characterized in that: The output end of the motor (76) is fixedly connected to a gear 1 (77), and the outer surface of the connecting tube (71) corresponding to the gear 1 (77) is fixedly connected to a gear 2 (78), and the gear 2 (78) is meshed with the gear 1 (77). The outer surface of each group of the connecting tubes (71) is fixedly connected to a turbine blade (79) at a position between the transmission wheel (74) and the fertilizer plate (72).

8. The fertilizing and seeding machine with automatic analysis and adjustment function of fertilizing amount according to claim 1 is characterized in that: A discharge hole is provided at the bottom end of the fertilizer box (2) at a position corresponding to the fertilizer pipe, and the bottom end of the inner surface of the fertilizer box (2) is inclined toward the discharge hole. A connecting column (710) is fixedly connected to the outer surface of the lower end of the arc frame (5) at a position corresponding to the discharge hole, and one end of the connecting column (710) passes through the inside of the discharge hole and is fixedly connected to a pushing column (711).

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