Automatic fertilizing device for mini-tiller

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to an automatic fertilizing device for a mini-tiller, which comprises a mini-tiller frame body, a plurality of fertilizing funnels are fixedly arranged on the mini-tiller frame body, and a first baffle and a second baffle which are correspondingly arranged are slidably mounted on the fertilizing funnels. At least parts of the first baffle and the second baffle extend into the fertilization funnel, a fertilizer discharge port is formed between the first baffle and the second baffle, and an adjusting mechanism for opening and closing the fertilizer discharge port is arranged on the fertilization funnel; a first worm wheel driven by a first driving motor is arranged on the mini-tiller frame body, a first worm meshed with the first worm wheel is rotationally installed between every two adjacent fertilization funnels, the two ends of each first worm extend into the corresponding fertilization funnel to be connected with a fertilization impeller, and a plurality of fertilization grooves are formed in the fertilization impeller in the circumferential direction of the fertilization impeller. According to the automatic fertilization device, automatic fertilization of rotary tillage soil can be achieved, the falling amount of fertilizer can be controlled, the cultivated soil does not need to be manually fertilized, and the fertilization work efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an automatic fertilizing device for a micro-tillage machine. Background Art

[0002] The micro-tillage machine is powered by a small diesel engine or gasoline engine, and has the characteristics of light weight, small size, simple structure, etc. The micro-tillage machine is widely used in dry land, paddy fields, orchards, etc. in plains, mountainous areas, and hills. Equipped with corresponding agricultural tools, it can complete multiple operations such as rotary tillage, plowing, sowing, threshing, pumping, spraying, power generation and transportation, and can also tow a trailer for short-distance transportation. The micro-tillage machine can be freely used in the field, which is convenient for users to use and store, eliminating the trouble that large agricultural machinery cannot enter the mountain fields. With its lightness, flexibility, versatility and low price, it has become a new favorite of farmers for farming, and is the best choice for farmers and consumers to replace cattle plowing.

[0003] After the micro-tillage machine has tilled the soil, the traditional way of fertilizing is to manually fertilize the tilled soil. During the fertilization process, the worker needs to bend over, which greatly increases the labor intensity of the workers. At the same time, it consumes a lot of human resources and has low work efficiency. Although there are some devices on the market for automatic fertilization, there may be lumps of fertilizer during the fertilization process. The lumps of fertilizer will block the feed port of the fertilization device, and the staff needs to stop the machine to deal with the lumps of fertilizer. In addition, granular fertilizers are also prone to blockage at the feed port, making it impossible for the fertilizer to enter the automatic fertilization area, and the machine needs to be stopped for processing, which will not only waste a lot of working time, but also reduce the efficiency and uniformity of fertilization. Therefore, fertilization work is still mostly done manually. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the utility model is to provide an automatic fertilizing device for a micro-tillage machine to solve the current manual operation method of fertilizing the cultivated soil, which requires bending over to carry out the fertilization process, greatly increasing the labor intensity of the manual labor, and consuming a large amount of human resources, and having low work efficiency.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] An automatic fertilizing device for a micro-tillage machine comprises a micro-tillage machine frame, a plurality of fertilizing hoppers are fixedly arranged on the micro-tillage machine frame, a feeding port is provided at the bottom of the fertilizing hopper, a first baffle and a second baffle are slidably mounted on the fertilizing hopper, the first baffle and the second baffle are correspondingly arranged, and the first baffle and the second baffle at least partially extend into the fertilizing hopper, a fertilizer feeding port is formed between the first baffle and the second baffle, and an adjusting mechanism for realizing the opening and closing of the fertilizer feeding port is provided on the fertilizing hopper;

[0008] A first fixing plate is fixedly mounted on the frame of the micro-tillage machine, a first driving motor is fixedly mounted on the first fixing plate, an output shaft of the first driving motor is drivingly connected to a first worm gear, a first worm gear meshing with the first worm gear is rotatably mounted between adjacent fertilization hoppers, two ends of the first worm gear respectively extend into the fertilization hoppers, and ends of the first worm gear are fixedly connected to fertilization impellers, the fertilization impeller is located directly below the fertilizer discharge port, and a plurality of fertilization grooves are provided on the fertilization impeller along its circumference.

[0009] As an improved technical solution, the fertilization funnel is provided with slide grooves respectively matched with the first baffle plate and the second baffle plate, and the first baffle plate and the second baffle plate are slidably installed on the fertilization funnel through the slide grooves.

[0010] As an improved technical solution, the adjustment mechanism includes a first U-shaped plate fixedly mounted on one side of the fertilization hopper, a second worm gear is rotatably mounted on the first U-shaped plate, a third fixed plate is also fixedly mounted on one side of the fertilization hopper, a second worm gear meshing with the second worm gear is rotatably mounted on the third fixed plate, the two ends of the second worm gear have threads with opposite rotation directions, and the two ends of the second worm gear are respectively threadedly connected to the first baffle plate and the second baffle plate;

[0011] A second fixing plate is fixedly installed on the other side of the fertilization funnel, and the second fixing plate is fixedly connected to a guide rod arranged parallel to the second worm, and the two ends of the guide rod are respectively slidably matched with the first baffle plate and the second baffle plate.

[0012] As an improved technical solution, a second rotating shaft is rotatably mounted on the first U-shaped plate, the second worm gear is mounted on one end of the second rotating shaft, the other end of the second rotating shaft is fixedly connected to a rotating wheel, and the rotating wheel is provided with a hand crank handle.

[0013] As an improved technical solution, both ends of the second worm and both ends of the guide rod are provided with limit stops.

[0014] As an improved technical solution, two first fixed plates are correspondingly provided, and a first rotating shaft is rotatably installed between the two first fixed plates. One end of the first rotating shaft is drivingly connected to the output shaft of the first drive motor, and the first worm gear is installed on the first rotating shaft and is keyed to the first rotating shaft.

[0015] As an improved technical solution, a crushing roller driven by a second drive motor is rotatably installed in the fertilizer hopper, two crushing rollers are correspondingly provided and are located above the first baffle and the second baffle, a feeding gap is provided between the two crushing rollers, and a spiral blade driven by the second drive motor is also provided below the crushing roller, and the spiral blade is located between the feeding gap and the fertilizer discharge port.

[0016] As an improved technical solution, a second U-shaped plate is fixedly installed on the fertilization funnel, the second drive motor is fixedly installed on the second U-shaped plate, the output shaft of the second drive motor is transmission-connected to the third rotating shaft, the third rotating shaft is installed with a third gear, the fertilization funnel is rotatably installed with a fourth rotating shaft, the crushing roller is installed on the fourth rotating shaft, one end of the fourth rotating shaft extends to the outside of the fertilization funnel and is installed with a first gear meshing with the third gear, the fertilization funnel is also rotatably installed with a fifth rotating shaft, the spiral blade is arranged on the fifth rotating shaft, and one end of the fifth rotating shaft extends to the outside of the fertilization funnel and is installed with a second gear meshing with the third gear.

[0017] After adopting the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The first worm wheel on the first rotating shaft is driven to rotate by the first driving motor, and the first worm wheel drives the first worm to rotate, thereby driving the fertilization impellers at both ends of the first worm to rotate, and then the soil can be automatically fertilized; the rotating wheel is rotated, and the rotating wheel drives the second worm wheel to rotate through the second rotating shaft, and the second worm wheel drives the first baffle and the second baffle to move in opposite directions or reverse directions through the second worm, so that the distance between the first baffle and the second baffle can be adjusted, and then the falling amount of fertilizer can be controlled, and the fertilization amount of the soil can be controlled, so that there is no need to manually fertilize the cultivated soil, which greatly reduces the labor intensity of manual labor, and also saves a lot of human resources and improves work efficiency.

[0019] 2. The third gear on the third shaft is driven to rotate by the second driving motor, and the third gear drives the first gear and the second gear on both sides to rotate respectively. The first gear drives the crushing roller to rotate through the fourth shaft, and the second gear drives the spiral blade to rotate through the fifth shaft. The agglomerated fertilizer is crushed by the two crushing rollers so that it will not block the discharge port, and there is no need for the staff to stop the machine for processing. The spiral blades prevent the fertilizer above the fertilizer discharge port from causing blockage, so that the fertilizer can normally enter the automatic fertilization area for fertilization operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 The utility model is a three-dimensional structural schematic diagram of the automatic fertilizing device for a micro-tillage machine.

[0022] Figure 2 The utility model is a schematic diagram of the automatic fertilization structure of the automatic fertilization device for the micro-tillage machine.

[0023] Figure 3 The utility model is a cross-sectional structural schematic diagram of an automatic fertilizing device for a micro-tillage machine.

[0024] Figure 4 The utility model is a schematic diagram of the anti-blocking structure of the automatic fertilizing device for the micro-tillage machine.

[0025] Description of reference numerals:

[0026] 1. Micro-tillage machine; 2. Fertilizer hopper; 3. First drive motor; 4. First rotating shaft; 5. First worm wheel; 6. First worm; 7. Fertilizer impeller; 8. Fertilizer trough; 9. First baffle plate; 10. Second baffle plate; 11. Second worm; 12. Second worm wheel; 13. Second rotating shaft; 14. Rotating wheel; 15. First fixed plate; 16. First U-shaped plate; 17. Guide rod; 18. Limit stopper; 19. Second fixed plate; 20. Third fixed plate; 21. Slide; 22. Crushing roller; 23. Fourth rotating shaft; 24. First gear; 25. Spiral blade; 26. Fifth rotating shaft; 27. Second gear; 28. Third gear; 29. ​​Third rotating shaft; 30. Second drive motor; 31. Second U-shaped plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] like Figures 1 to 4 As shown together, the present embodiment provides an automatic fertilizing device for a micro-tiller, including a micro-tiller frame 1, on which a plurality of fertilizer hoppers 2 are fixedly provided, and a drop opening is provided at the bottom of the fertilizer hopper 2 to realize the dropping of fertilizer, and a first baffle 9 and a second baffle 10 are slidably mounted on the fertilizer hopper 2, the first baffle 9 and the second baffle 10 are correspondingly arranged, and the first baffle 9 and the second baffle 10 at least partially extend into the fertilizer hopper 2, and a fertilizer drop opening is formed between the first baffle 9 and the second baffle 10, and an adjusting mechanism for realizing the opening and closing of the fertilizer drop opening is provided on the fertilizer hopper 2, and the spacing between the first baffle 9 and the second baffle 10 is controlled by the adjusting mechanism to realize the opening or closing of the fertilizer drop opening, and the size of the opening, thereby controlling the falling amount of the fertilizer.

[0032] A first fixed plate 15 is fixedly mounted on the micro-tillage frame 1, a first drive motor 3 is fixedly mounted on the first fixed plate 15, a first worm gear 5 is connected to the output shaft of the first drive motor 3, a first worm 6 meshing with the first worm gear 5 is rotatably mounted between adjacent fertilizer hoppers 2, both ends of the first worm gear 6 extend into the fertilizer hopper 2, and the ends of the first worm gear 6 are fixedly connected to a fertilizer impeller 7, the fertilizer impeller 7 is located directly below the fertilizer discharge port, and the fertilizer impeller 7 is provided with a plurality of fertilizer grooves 8 along its circumference. The first drive motor 3 works, drives the first worm gear 5 to rotate, and then drives the fertilizer impeller 7 to rotate through the first worm gear 6, the fertilizer falling from the fertilizer discharge port falls into the fertilizer groove 8 of the fertilizer impeller 7, and as the fertilizer impeller 7 rotates, the fertilizer in the fertilizer groove 8 is dumped into the discharge port, thereby realizing automatic fertilization of the rotary tillage soil.

[0033] In order to realize the installation of the first baffle 9 and the second baffle 10 on the fertilizing funnel 2, the fertilizing funnel 2 is provided with a slide groove 21 respectively adapted to the first baffle 9 and the second baffle 10, and the first baffle 9 and the second baffle 10 are slidably installed on the fertilizing funnel 2 through the slide groove 21.

[0034] The adjusting mechanism includes a first U-shaped plate 16 fixedly mounted on one side of the fertilizing funnel 2, on which a second worm gear 12 is rotatably mounted, and a third fixed plate 20 is also fixedly mounted on one side of the fertilizing funnel 2, on which a second worm 11 meshing with the second worm gear 12 is rotatably mounted, and the two ends of the second worm 11 have threads with opposite rotation directions, and the two ends of the second worm 11 are respectively threadedly connected to the first baffle 9 and the second baffle 10; a second fixed plate 19 is fixedly mounted on the other side of the fertilizing funnel 2, and the second fixed plate 19 is fixedly connected to a guide rod 17 arranged parallel to the second worm 11, and the two ends of the guide rod are respectively slidably matched with the first baffle 9 and the second baffle 10. The adjusting mechanism is provided, and the second worm wheel 12 rotates to drive the second worm 11 to rotate. Since the two ends of the second worm 11 are respectively threadedly connected to the first baffle 9 and the second baffle 10, the rotation of the second worm 11 can drive the first baffle 9 and the second baffle 10 to move toward or away from each other, thereby realizing the opening and closing control of the fertilizer discharge port. The guide rod 17 is provided, which can realize the sliding guidance of the first baffle 9 and the second baffle 10, ensuring the smooth sliding displacement of the first baffle 9 and the second baffle 10.

[0035] In this embodiment, a second rotating shaft 13 is rotatably mounted on the first U-shaped plate 16 via a bearing, a second worm gear 12 is mounted on one end of the second rotating shaft 13, and a rotating wheel 14 is fixedly connected to the other end of the second rotating shaft 13. A hand crank handle is provided on the rotating wheel 14. The rotating wheel 14 is rotated by the hand crank handle, thereby driving the second worm gear 12 to rotate.

[0036] In this embodiment, both ends of the second worm 11 and both ends of the guide rod 17 are provided with limit stops 18, and the limit stops 18 can prevent the first baffle 9 and the second baffle 10 from slipping off the second worm 11 and the guide rod 17.

[0037] In this embodiment, two first fixed plates 15 are correspondingly provided, and a first rotating shaft 4 is rotatably installed between the two first fixed plates 15 by means of bearings. One end of the first rotating shaft 4 is transmission-connected to the output shaft of the first driving motor 3. The first worm gear 5 is installed on the first rotating shaft 4 and is key-connected to the first rotating shaft 4. When the first driving motor 3 works, the first worm gear 5 is driven to rotate through the first rotating shaft 4.

[0038] The rotating wheel 14 is rotated by a hand crank handle, and the rotating wheel 14 drives the second worm wheel 12 to rotate through the second rotating shaft 13, and the second worm wheel 12 drives the first baffle 9 and the second baffle 10 to move in opposite directions or opposite directions through the second worm 11, so that the distance between the first baffle 9 and the second baffle 10 can be adjusted, and then the falling amount of the fertilizer can be controlled, and the fertilization amount of the soil can be controlled; at the same time, the first worm wheel 5 on the first rotating shaft 4 is driven to rotate by the first driving motor 3, and the first worm wheel 5 drives the first worm 6 to rotate, thereby driving the fertilization impeller 7 at both ends of the first worm 6 to rotate, and then the soil can be automatically fertilized, so that there is no need to manually fertilize the cultivated soil, which greatly reduces the labor intensity of manual labor, and also saves a lot of human resources and improves work efficiency.

[0039] In this embodiment, a crushing roller 22 driven by a second drive motor 30 is rotatably installed in the fertilizer hopper 2. Two crushing rollers 22 are correspondingly provided and are located above the first baffle 9 and the second baffle 10. There is a feeding gap between the two crushing rollers 22. A spiral blade 25 driven by the second drive motor 30 is also provided below the crushing rollers 22. The spiral blade 25 is located between the feeding gap and the fertilizer discharge port. The second drive motor 30 works to drive the two crushing rollers 22 to rotate, which can achieve the crushing of the agglomerated fertilizer. The fertilizer falls from the feeding gap between the two crushing rollers 22 to the bottom. At the same time, the second drive motor 30 drives the spiral blade 25 to move, which can prevent the fertilizer from blocking the fertilizer discharge port.

[0040] In this embodiment, a second U-shaped plate 31 is fixedly installed on the fertilizing funnel 2, a second drive motor 30 is fixedly installed on the second U-shaped plate 31, an output shaft of the second drive motor 30 is transmission-connected with a third rotating shaft 29, a third gear 28 is installed on the third rotating shaft, a fourth rotating shaft 23 is rotatably installed on the fertilizing funnel 2, a crushing roller 22 is installed on the fourth rotating shaft 23, one end of the fourth rotating shaft 23 extends to the outside of the fertilizing funnel 2 and is installed with a first gear 24 meshing with the third gear 28, the fertilizing funnel 2 is also rotatably installed with a fifth rotating shaft 26, and a screw The rotary blade 25 is arranged on the fifth rotating shaft 26, and one end of the fifth rotating shaft 26 extends to the outside of the fertilizer funnel 2 and is installed with a second gear 27 meshing with the third gear 28; the second drive motor 30 works, and drives the third gear 28 to rotate through the third rotating shaft 29. Since the first gear 24 and the second gear 27 are both meshed with the third gear 28, the rotation of the third gear drives the first gear 24 and the second gear 27 to rotate synchronously, and then drives the crushing roller 22 to rotate through the fourth rotating shaft 23, and drives the spiral blade 25 to rotate through the fifth rotating shaft 26.

[0041] The third gear on the third shaft is driven to rotate by the second driving motor, and the third gear drives the first gear and the second gear on both sides to rotate respectively. The first gear drives the crushing roller to rotate through the fourth shaft, and the second gear drives the spiral blade to rotate through the fifth shaft. The agglomerated fertilizer is crushed by the two crushing rollers so that it will not block the discharge port, and there is no need for staff to stop the machine for processing. The spiral blades prevent the fertilizer above the fertilizer discharge port from causing blockage, so that the fertilizer can normally enter the automatic fertilization area for fertilization operations.

[0042] When in use, the automatic fertilizing device for the micro-tillage machine is installed on the top of the micro-tillage machine, and then the rotating wheel 14 is rotated according to the need of fertilization. The rotating wheel 14 drives the second worm wheel 12 to rotate through the second rotating shaft 13, and the second worm wheel 12 drives the first baffle 9 and the second baffle 10 to move in opposite directions along the guide rod 17 through the second worm 11, thereby opening the distance between the first baffle 9 and the second baffle 10. By adjusting the distance between the first baffle 9 and the second baffle 10, the falling amount of fertilizer can be controlled, and the fertilization amount of the soil can be controlled. At the same time, the first driving motor 3 is started, and the first driving motor 3 drives the first worm wheel 5 to rotate through the first rotating shaft 4. The first worm wheel 5 drives the fertilization impellers 7 at both ends to rotate through the first worm 6, and the fertilization impeller 7 drives a plurality of fertilization troughs 8 to rotate, thereby automatically fertilizing the soil, thereby eliminating the need for manual fertilization of the cultivated land. Fertilizing the soil greatly reduces the labor intensity of manual labor, saves a lot of human resources, and improves work efficiency; at the same time, the second drive motor 30 is started, and the second drive motor 30 drives the third gear 28 to rotate through the third shaft 29, and the third gear 28 drives the first gear 24 and the second gear 27 on both sides to rotate respectively, and the first gear 27 drives the crushing roller 22 to rotate through the fourth shaft 23, and at the same time, the second gear 27 drives the spiral blade 25 to rotate through the fifth shaft 26, and the agglomerated fertilizer is crushed by the two crushing rollers 22, so that it will not block the fertilizer discharge port, and there is no need for staff to stop the machine for processing. The spiral blade 25 prevents the fertilizer above the discharge port from causing blockage, so that the fertilizer can normally enter the automatic fertilization area for fertilization operation, which will not only save a lot of working time, but also improve work efficiency.

[0043] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. An automatic fertilizing device for a micro-tillage machine, characterized in that: The micro-tillage machine comprises a frame (1) on which a plurality of fertilizer hoppers (2) are fixedly provided, a feeding opening is provided at the bottom of the fertilizer hopper (2), a first baffle (9) and a second baffle (10) are slidably mounted on the fertilizer hopper (2), the first baffle (9) and the second baffle (10) are arranged correspondingly, and the first baffle (9) and the second baffle (10) at least partially extend into the fertilizer hopper (2), a fertilizer feeding opening is formed between the first baffle (9) and the second baffle (10), and the fertilizer hopper (2) is provided with an adjusting mechanism for realizing the opening and closing of the fertilizer feeding opening; A first fixing plate (15) is fixedly mounted on the micro-tillage machine frame (1), a first driving motor (3) is fixedly mounted on the first fixing plate (15), an output shaft of the first driving motor (3) is drivingly connected to a first worm gear (5), a first worm (6) meshing with the first worm gear (5) is rotatably mounted between adjacent fertilizing hoppers (2), two ends of the first worm (6) respectively extend into the fertilizing hopper (2), and ends of the first worm (6) are fixedly connected to a fertilizing impeller (7), the fertilizing impeller (7) is located directly below the fertilizer discharge port, and the fertilizing impeller (7) is provided with a plurality of fertilizing grooves (8) along its circumference.

2. The automatic fertilizing device for a micro-tillage machine according to claim 1, characterized in that: The fertilizing funnel (2) is provided with a slide groove (21) respectively matched with the first baffle plate (9) and the second baffle plate (10); the first baffle plate (9) and the second baffle plate (10) are slidably mounted on the fertilizing funnel (2) via the slide groove (21).

3. The automatic fertilization device for a micro-tillage machine according to claim 1, characterized in that: The adjustment mechanism comprises a first U-shaped plate (16) fixedly mounted on one side of the fertilizing hopper (2), a second worm gear (12) being rotatably mounted on the first U-shaped plate (16), a third fixed plate (20) being fixedly mounted on one side of the fertilizing hopper (2), a second worm (11) meshing with the second worm gear (12) being rotatably mounted on the third fixed plate (20), the second worm gear (11) having two ends with threads of opposite rotation directions, and the two ends of the second worm gear (11) being respectively threadedly connected to the first baffle plate (9) and the second baffle plate (10); A second fixing plate (19) is fixedly mounted on the other side of the fertilizing hopper (2), the second fixing plate (19) being fixedly connected to a guide rod (17) arranged parallel to the second worm (11), the two ends of the guide rod being respectively slidably engaged with the first baffle plate (9) and the second baffle plate (10).

4. The automatic fertilizing device for a micro-tillage machine according to claim 3, characterized in that: A second rotating shaft (13) is rotatably mounted on the first U-shaped plate (16); the second worm gear (12) is mounted on one end of the second rotating shaft (13); the other end of the second rotating shaft (13) is fixedly connected to a rotating wheel (14); and the rotating wheel (14) is provided with a hand crank.

5. The automatic fertilizing device for a micro-tillage machine according to claim 3, characterized in that: Both ends of the second worm (11) and both ends of the guide rod (17) are provided with limit stoppers (18).

6. The automatic fertilizing device for a micro-tillage machine according to claim 1, characterized in that: Two first fixing plates (15) are provided correspondingly, and a first rotating shaft (4) is rotatably mounted between the two first fixing plates (15); one end of the first rotating shaft (4) is drivingly connected to an output shaft of the first drive motor (3); and the first worm gear (5) is mounted on the first rotating shaft (4) and is key-connected to the first rotating shaft (4).

7. The automatic fertilizing device for a micro-tillage machine according to any one of claims 1 to 6, characterized in that: A crushing roller (22) driven by a second drive motor (30) is rotatably mounted in the fertilizer hopper (2). Two crushing rollers (22) are provided and are located above the first baffle (9) and the second baffle (10). A material passing gap is provided between the two crushing rollers (22). A spiral blade (25) driven by the second drive motor (30) is also provided below the crushing roller (22). The spiral blade (25) is located between the material passing gap and the fertilizer discharge port.

8. The automatic fertilizing device for a micro-tillage machine according to claim 7, characterized in that: The fertilizing hopper (2) is fixedly mounted with a second U-shaped plate (31), the second drive motor (30) is fixedly mounted on the second U-shaped plate (31), the output shaft of the second drive motor (30) is drivingly connected with a third rotating shaft (29), the third rotating shaft is mounted with a third gear (28), the fertilizing hopper (2) is rotatably mounted with a fourth rotating shaft (23), the crushing roller (22) is mounted on the fourth rotating shaft (23), one end of the fourth rotating shaft (23) extends outside the fertilizing hopper (2) and is mounted with a first gear (24) meshing with the third gear (28), the fertilizing hopper (2) is also rotatably mounted with a fifth rotating shaft (26), the spiral blade (25) is arranged on the fifth rotating shaft (26), one end of the fifth rotating shaft (26) extends outside the fertilizing hopper (2) and is mounted with a second gear (27) meshing with the third gear (28).

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