Field returning machine for spraying fungicide

Abstract

The field returning machine comprises a machine frame, a rotary tillage assembly, a hydraulic assembly used for driving a rotary tillage motor to operate, a fungicide spraying assembly arranged on the machine frame and a connecting assembly, a housing is arranged on the upper side of the machine frame, a mounting rod is arranged on the front side of the machine frame, an electric control device is arranged on the mounting rod, and the connecting assembly is connected with the electric control device. The rotary tillage assembly comprises a rotary tillage motor which is rotatably arranged on the rear portion of the machine frame, arranged on the outer side of the machine frame and used for driving the knife roller to rotate, and the fungicide spraying assembly is used for spraying fungicide. The connecting assembly comprises a first connecting arm, a second connecting arm and a third connecting arm, wherein the first connecting arm and the second connecting arm are symmetrically arranged on the front side of the rack, and the third connecting arm is arranged on the upper side of the housing. The field returning machine can be installed on a traction carrier, the fungicide spraying assembly can spray fungicide on straw to promote the straw to become fertilizer, meanwhile, rotary tillage can be carried out, labor intensity is relieved, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural fertilization, in particular to a field returning machine for spraying bacterial agents. Background Art

[0002] In order to effectively utilize straw resources, the widely used methods at present are to process straw into blocks and pellets. However, these methods have some problems, such as wasting straw resources, low utilization rate, consuming a lot of energy, causing environmental pollution, etc. Microbial agents, as an environmentally friendly and efficient way of resource utilization, can effectively solve these problems.

[0003] In order to make the straw fertilizer ferment quickly, it is necessary to add some microbial agents to the straw raw materials. The most commonly used ones are EM strains and brown sugar yeast liquid, and Bacillus subtilis is also used.

[0004] At present, microbial agents are basically spread manually, which is difficult to spread evenly, time-consuming and labor-intensive, and has low operating efficiency. At the same time, after spreading the microbial agents, a rotary tiller is required for rotary tillage. Therefore, a new technical solution is urgently needed to solve at least one of the above technical problems. Summary of the invention

[0005] In view of the above-mentioned deficiencies, the purpose of the utility model is to provide a field return machine for spraying fungi, which can be installed on a traction vehicle. The fungi spraying assembly can spray the fungi on the straw, thereby turning the straw into fertilizer. At the same time, it can also perform rotary tillage, thereby reducing labor intensity and improving work efficiency.

[0006] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the utility model is:

[0007] A field returning machine for spraying fungicides, comprising:

[0008] A frame, wherein a cover is disposed on the upper side of the frame, a mounting rod is disposed on the front side of the frame, and an electric control device is disposed on the mounting rod;

[0009] A rotary tillage assembly, comprising a rotary tillage motor rotatably arranged at the rear of the frame and arranged outside the frame for driving the knife roller to rotate;

[0010] A hydraulic assembly for driving the rotary tillage motor to operate;

[0011] A bacterial agent spraying assembly disposed on the frame, used for spraying the bacterial agent;

[0012] The connecting assembly comprises a first connecting arm and a second connecting arm symmetrically arranged on the front side of the frame, and a third connecting arm arranged on the upper side of the cover shell.

[0013] As a preferred technical solution, the frame includes two symmetrically arranged side panels, a mounting plate detachably arranged on the outside of the side panels, a front plate arranged on the front side of the side panels, and a rear plate arranged on the rear side of the side panels, and both ends of the knife roller are rotatably connected to the corresponding mounting plates.

[0014] As a preferred technical solution, the bacterial agent spraying assembly includes a bacterial agent storage box straddling the upper side of the side panel, a spray pipe inserted into the side panel, and a spray pump arranged on the outer side of the side panel, the spray pipe is connected to the bacterial agent storage box, the spray pump is connected to the bacterial agent storage box, the spray pipe is equidistantly provided with a plurality of bacterial agent nozzles, the bacterial agent nozzles are connected to the spray pipe, the spray pump is electrically connected to the electronic control device, and the bacterial agent storage box is located in front of the cover shell.

[0015] As a preferred technical solution, the hydraulic assembly includes a hydraulic oil tank arranged above the frame, a hydraulic pump arranged in front of the frame, multiple hydraulic oil pipes, an overflow valve, and a hydraulic filter arranged on the upper side of the third connecting arm. The hydraulic pump is connected to the hydraulic oil tank through a hydraulic oil pipe, and the hydraulic pump is connected to the rotary motor.

[0016] As a preferred technical solution, the first connecting arm and the second connecting arm are detachably provided with a first hydraulic rod and a second hydraulic rod, respectively.

[0017] As a preferred technical solution, the third connecting arm is in a broken line shape, and a third hydraulic rod is detachably provided on one end of the third connecting arm away from the frame.

[0018] As a preferred technical solution, an inclination transmitter is provided on the rear side of the rear plate.

[0019] As a preferred technical solution, a mudguard is provided at the lower edge of the rear plate.

[0020] As a preferred technical solution, the front panel is provided with an intelligent shooting module.

[0021] As a preferred technical solution, a connection disk is sleeved on the outer peripheral side of the knife roller, and the connection disk is provided with a plurality of blades.

[0022] Compared with the traditional technical solution, the beneficial effects of the utility model are:

[0023] 1) The first connecting arm, the second connecting arm and the third connecting arm form a three-point suspension structure, which can be connected to a tractor or other traction vehicle, so that the field return machine can follow the traction vehicle. The three-point suspension structure has good stability and convenient height adjustment. The electronic control device controls the microbial agent spraying component to spray the microbial agent, so that the microbial agent can be sprayed reasonably. The microbial agent spraying component can spray the microbial agent on the straw to turn the straw into fertilizer. At the same time, rotary tillage can be performed to reduce labor intensity and improve work efficiency.

[0024] 2) The frame structure is simple and easy to install and disassemble;

[0025] 3) The microbial agent spraying device pumps the microbial agent into the spraying pipe through the spraying pump, and sprays the microbial agent from the microbial agent nozzle to achieve a uniform spraying effect;

[0026] 4) The filter in the hydraulic assembly can filter the hydraulic oil to prevent impurities from entering the rotary motor, reduce the number of maintenance times, and extend the service life;

[0027] 5) The first hydraulic rod, the second hydraulic rod and the third hydraulic rod can adjust the installation angle of the field return machine to improve the operation stability;

[0028] 6) The inclination transmitter is used to detect whether the knife roller is level to prevent the cultivated land from tilting and affecting the quality of the cultivated land;

[0029] 7) The intelligent camera module can identify the amount of straw and then feed back to the electronic control device to control the amount of bacterial agent spraying;

[0030] 8) Mud guards can prevent dust and mud splashing;

[0031] 9) The rotary tillage motor can be controlled to rotate forward and reverse to adjust the direction of the knife roller to adapt to ground conditions of different hardness. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A structural diagram of a field returning machine provided for one embodiment of the utility model;

[0033] Figure 2 for Figure 1 Bottom view of

[0034] Figure 3 for Figure 1 Another view of .

[0035] exist Figure 1-Figure 3Among them, 1, frame; 101, side plate; 102, mounting plate; 103, front plate; 104, rear plate; 2, cover; 3, mounting rod; 4, electronic control device; 5, knife roller; 501, connecting plate; 502, blade; 6, rotary tillage motor; 7, first connecting arm; 8, second connecting arm; 9, third connecting arm; 10, first hydraulic rod; 11, second hydraulic rod; 12, third hydraulic rod; 13, bacterial agent storage box; 14, spraying pump; 15, spraying pipe; 16, bacterial agent nozzle; 17. Hydraulic oil tank; 18. Hydraulic pump; 19. Hydraulic oil pipe; 1902. Oil inlet pipe; 1903. Oil outlet branch pipe; 1904. First oil pipe; 1905. Second oil pipe; 1906. Third oil pipe; 1907. Fourth oil pipe; 1908. Fifth oil pipe; 1909. Sixth oil pipe; 1910. Seventh oil pipe; 1911. Eighth oil pipe; 1912. First joint; 1913. Second joint; 20. Overflow valve; 21. Hydraulic filter; 22. Fender. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "top", "bottom", "left", "right", "front", "back", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] Please refer to Figure 1-Figure 3The utility model provides a field return machine for spraying bacterial agents in one embodiment, comprising a frame 1, a rotary tillage assembly, a hydraulic assembly for driving the rotary tillage motor 6 to operate, a bacterial agent spraying assembly arranged on the frame 1, and a connecting assembly. A cover 2 is arranged on the upper side of the frame 1, a mounting rod 3 is arranged on the front side of the frame 1, and an electric control device 4 is arranged on the mounting rod 3. The rotary tillage assembly comprises a rotary tillage motor 6 rotatably arranged at the rear of the frame 1 and arranged on the outside of the frame 1 for driving the knife roller 5 to rotate. The bacterial agent spraying assembly is used to spray the bacterial agent. The connecting assembly comprises a symmetrical The first connecting arm 7 and the second connecting arm 8 are arranged on the front side of the frame 1, and the third connecting arm 9 is arranged on the upper side of the cover shell 2. The first connecting arm 7, the second connecting arm 8 and the third connecting arm 9 can be connected to a tractor or other traction vehicle, so that the field return machine can follow the traction vehicle to run, and the electronic control device 4 controls the microbial agent spraying assembly to spray the microbial agent, so that the microbial agent can be sprayed reasonably, and the microbial agent spraying assembly can spray the microbial agent on the straw. The microbial agent nozzle 16 sprays the decomposing microbial agent to promote the fusion of the decomposing microbial agent and the straw, accelerate the decomposition of the straw to form fertilizer, and at the same time can perform rotary tillage, reduce labor intensity, and improve work efficiency.

[0039] like Figure 1-Figure 3 As shown, the frame 1 includes two symmetrically arranged side panels 101, a mounting plate 102 detachably arranged on the outside of the side panels 101, a front panel 103 arranged on the front side of the side panels 101, and a rear panel 104 arranged on the rear side of the side panels 101. Both ends of the knife roller 5 are rotatably connected to the corresponding mounting plates 102 respectively. The frame 1 has a simple structure and is easy to install and disassemble.

[0040] like Figure 1-Figure 3 As shown, the bacterial agent spraying assembly includes a bacterial agent storage box 13 straddling the upper side of the side plate 101, a spraying pipe 15 inserted into the side plate 101, and a spraying pump 14 arranged on the outer side of the side plate 101, the spraying pipe 15 is connected to the bacterial agent storage box 13, the spraying pump 14 is connected to the bacterial agent storage box 13, the spraying pipe 15 is equidistantly provided with a plurality of bacterial agent spray heads 16, the bacterial agent spray heads 16 are connected to the spraying pipe 15, the spraying pump 14 is electrically connected to the electronic control device 4, the bacterial agent storage box 13 is located in front of the cover 2, the bacterial agent spraying device pumps the bacterial agent into the spraying pipe 15 through the spraying pump 14, and sprays the bacterial agent from the bacterial agent spray head 16 to achieve a uniform spraying effect.

[0041] like Figure 1-Figure 3As shown, the hydraulic assembly includes a hydraulic oil tank 17 arranged above the frame 1, a hydraulic pump 18 arranged in front of the frame 1, multiple hydraulic oil pipes 19, an overflow valve 20, and a hydraulic filter 21 arranged on the upper side of the third connecting arm 9. The overflow valve 20 is connected to the hydraulic pump 18 through a hydraulic oil pipe. The hydraulic pump 18 pumps the hydraulic pressure in the hydraulic oil tank 17 into the rotary tillage motor 6. The hydraulic pump 18 is connected to the hydraulic oil tank 17 through a hydraulic oil pipe 19. The hydraulic pump 18 is connected to the rotary tillage motor 6. The hydraulic gauge is connected to the overflow valve 20 to The hydraulic oil pipe 19 includes an oil outlet pipe 1901 arranged on one side of the hydraulic oil tank 17, an oil inlet pipe 1902 arranged on the other side of the hydraulic oil tank 17, an oil outlet branch pipe 1903, a first oil pipe 1904, a second oil pipe 1905, a third oil pipe 1906, a fourth oil pipe 1907, a fifth oil pipe 1908, a sixth oil pipe 1909, a seventh oil pipe 1910, an eighth oil pipe 1911, a first joint 1912, and a second joint 1913. The oil outlet pipe 1901 is connected to the hydraulic pump 18, and the oil outlet branch pipe 1903 is connected to the The oil outlet pipe 1901 is in communication with the hydraulic pump 18, the first oil pipe 1904 is in communication with the hydraulic pump 18, the first end of the second joint 1913 is in communication with the second oil pipe 1905, the first end of the first joint 1912 is in communication with the hydraulic pump 18, the second end of the first joint 1912 is in communication with the oil inlet pipe 1902, the third end of the first joint 1912 is in communication with the eighth oil pipe 1911, the fourth end of the first joint 1912 is in communication with the relief valve 20, the relief valve 20 is in communication with the fourth oil pipe 1907, the second joint 1913 is in communication with the hydraulic pump 18, the oil outlet pipe 1901 is in communication with the hydraulic pump 18, the first oil pipe 1904 is in communication with the hydraulic pump 18, the first oil pipe 1905 is in communication with the first end of the first joint 1912 and the hydraulic pump 18, the second end of the first joint 1912 is in communication with the oil inlet pipe 1902, the third end of the first joint 1912 is in communication with the eighth oil pipe 1911, the fourth end of the first joint 1912 is in communication with the overflow valve 20, the overflow valve 20 is in communication with the fourth oil pipe 1907, the second joint 1913 is in communication with the hydraulic pump 18, the oil outlet pipe 1901 is in communication with the hydraulic pump 18, the first oil pipe 1904 is in communication with the hydraulic pump 18, the first oil pipe 1905 ... The second end is connected to the sixth oil pipe 1909, the third end of the second joint 1913 is connected to the seventh oil pipe 1910, and the fourth end of the second joint 1913 is connected to the rotary motor 6. The hydraulic filter 21 in the hydraulic assembly can filter the hydraulic oil before entering the rotary motor 6 to prevent impurities from entering the rotary motor 6, reduce the number of maintenance times, and extend the service life. The hydraulic oil pipe connection adopts a conventional method. It should be noted that the utility model does not fully represent all the oil pipes connected during actual tillage. During actual rotary tillage, the oil pipes are increased or decreased according to actual conditions.

[0042] Furthermore, the first connecting arm 7 and the second connecting arm 8 are respectively detachably provided with a first hydraulic rod 10 and a second hydraulic rod 11, the third connecting arm 9 is in a broken line shape, and the third connecting arm 9 is detachably provided with a third hydraulic rod 12 at one end away from the frame 1. The first hydraulic rod 10, the second hydraulic rod 11 and the third hydraulic rod 12 are used for three-point suspension of the tractor, and the installation angle of the field return machine can be adjusted to improve the operation stability. The first hydraulic rod 10, the second hydraulic rod 11 and the third hydraulic rod 12 can be connected to the oil pipe to drive the extension and retraction so as to adjust the installation height of the knife roller.

[0043] like Figure 1-Figure 3 As shown, a tilt angle transmitter is arranged at the rear side of the rear plate 104, and the tilt angle transmitter is used to detect whether the knife roller 5 is level, so as to prevent the cultivated land from tilting and affecting the quality of the cultivated land.

[0044] like Figure 1-Figure 3 As shown, a fender 22 is provided at the lower edge of the rear plate 104, and the fender 22 can prevent dust and soil from splashing.

[0045] like Figure 1-Figure 3 As shown, the front panel 103 is provided with an intelligent shooting module (not shown), which is electrically connected to the electronic control device 4. The intelligent shooting module is an OpenMV module, which can identify the amount of straw. The electronic control device 4 controls the spraying of the microbial agent according to the amount of straw so as to reasonably apply the microbial agent.

[0046] When the straw is piled, calculate the area S occupied by the image in the screen of the intelligent shooting module in the actual land, set the delay of the intelligent shooting module to 1-3s, and then determine the RGB threshold of the soil. When the field return machine is running, the intelligent shooting module instantly shoots the video screen of the front of the frame 1 or the front of the knife roller 2, performs color recognition on the screen and performs image binarization processing, converts the color that falls into the RGB threshold to white, and converts the color that does not fall into the RGB threshold to black, and then inverts the binary color, sets the white area as the piled straw, the black area as the soil, outputs the number of white pixels a, sets the amount of bacteria to be applied to the piled straw per unit area to c, and calculates the total amount of bacteria sprayed per unit time by the bacteria spraying device according to the following formula:

[0047]

[0048] Where: V is the total amount of microbial agent sprayed per unit time, ml; a is the number of white pixels; S is the actual land area in the picture, m 2 ; h—average stacking height, m; c—the amount of decomposing agent sprayed per unit volume, ml / m 3 ;

[0049] When the straw type is stubble straw, the YOLOv5 algorithm is first used to perform deep learning on the stubble straw image. Multiple photos containing stubble straw are entered into the YOLOv5 algorithm and the stubble straw is labeled and stored as a training set. Multiple photos without stubble straw but containing stones, trees, and canals are entered into the YOLOv5 algorithm, stored as a test set and learned. The stubble straw in each frame is anchored and framed, and the number of anchor frames b is output per second. The bacterial dosage required for each stubble straw is set to l, and the total bacterial spraying volume V' per unit time of the bacterial spraying device is calculated according to the following formula:

[0050]

[0051] In the formula: V'—total amount of bacterial agent sprayed per unit time, ml; l—the amount of decomposing agent sprayed per stubble straw, ml; b—the number of anchor frames;

[0052] The electronic control device 4 controls the bacterial agent spraying assembly to apply the bacterial agent according to the calculated values ​​of V and V'.

[0053] Due to different types of straw, the requirements for the amount of microbial agent spraying are also different. The intelligent shooting module transmits real-time images and is identified through OpenMV. When the straw is stacked, the amount of straw is identified by color differentiation. Although the average stacking height cannot be identified, in actual operations, due to the same planting density and the same operating method, the stacking height of a piece of land after mowing is roughly similar. It is only necessary to measure the stacking height once, and then the amount of straw and the average stacking height are obtained. According to the formula, the total amount of microbial agent sprayed per unit time is calculated.

[0054] After determining the RGB threshold of the soil, if the pixel is within the RGB threshold, it will be determined that the pixel belongs to the soil area and will be automatically marked as white. If the pixel is not within the RGB threshold, it will be determined that the pixel belongs to the straw and will be automatically marked as black. However, the characteristic of OpenMV is that its return value must be a white point, so it is necessary to perform binary color inversion, and the white part becomes black, and vice versa.

[0055] In actual operations, the soil in the same area is generally of uniform color, but the colors of different parts of the straw vary greatly after being exposed to wind and rain, so the RGB threshold of the straw is not directly measured.

[0056] Based on the appearance features of the stubble straw, YOLOv5 is used for anchoring and selection, and then deep learning is performed. YOLOv5 is a deep learning code that transmits images to a computer for deep learning of the anchors in the image. For example, 500 photos of people wearing masks are transferred to the database, and all the faces wearing masks in the images are annotated through labelme. After deep learning, a photo of a face wearing a mask can be transferred or photographed to automatically select the position of the masked face in the image.

[0057] By transmitting at least 160 pictures with stubble straw, the position of the stubble straw is anchored. After deep learning, the intelligent shooting module can select whether there are and how many stubble straws in the picture taken at this time based on the captured picture, and then calculate the total spraying amount of the microbial agent per unit time based on this number. In this way, the accumulated straw and stubble straw can be distinguished, and the application of the microbial agent can be controlled according to different straw types, thereby ensuring more reasonable application of the microbial agent, reducing the spraying amount of the microbial agent in places with less straw, and ensuring sufficient application amount of the microbial agent in places with more straw, saving microbial agent raw materials, and improving the fermentation effect of straw fertilizer.

[0058] like Figure 1-Figure 3 As shown, a connection plate 501 is sleeved on the outer peripheral side of the knife roller 5, and a plurality of blades 502 are welded to the connection plate 501. The blades 502 can rotate to cultivate the land.

[0059] Any numerical value cited herein includes all values ​​of lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there is at least a two-unit interval between any lower value and any higher value. For example, if the value of the quantity of a component or a process variable (such as temperature, pressure, time, etc.) is set forth to be from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in the specification. For values ​​less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the lowest value and the highest value are clearly set forth in the specification in a similar manner.

[0060] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0061] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0062] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0063] It should be understood that the above description is for illustration and not for limitation. By reading the above description, many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by these claims. For the purpose of comprehensiveness, all articles and references, including the disclosures of patent applications and announcements, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to abandon the subject matter, nor should it be considered that the inventor has not considered the subject matter as part of the disclosed utility model subject matter.

Claims

1. A field returning machine for spraying fungicides, characterized in that: include: A frame, wherein a cover is disposed on the upper side of the frame, a mounting rod is disposed on the front side of the frame, and an electric control device is disposed on the mounting rod; The rotary tillage assembly comprises a rotary tillage motor rotatably arranged at the rear of the frame and arranged outside the frame for driving the knife roller to rotate; A hydraulic assembly for driving the rotary tillage motor to operate; A bacterial agent spraying assembly disposed on the frame, used for spraying the bacterial agent; The connecting assembly comprises a first connecting arm and a second connecting arm symmetrically arranged on the front side of the frame, and a third connecting arm arranged on the upper side of the cover shell.

2. The field returning machine for spraying fungicides according to claim 1, characterized in that: The frame includes two symmetrically arranged side panels, a mounting plate detachably arranged on the outer sides of the side panels, a front plate arranged on the front sides of the side panels, and a rear plate arranged on the rear sides of the side panels. Both ends of the knife roller are rotatably connected to the corresponding mounting plates.

3. The field returning machine for spraying fungicides according to claim 2, characterized in that: The bacterial agent spraying assembly includes a bacterial agent storage box straddling the upper side of the side panel, a spray pipe inserted into the side panel, and a spray pump arranged on the outer side of the side panel, the spray pipe is connected to the bacterial agent storage box, the spray pump is connected to the bacterial agent storage box, a plurality of bacterial agent spray heads are equidistantly arranged on the spray pipe, the bacterial agent spray heads are connected to the spray pipe, the spray pump is electrically connected to the electronic control device, and the bacterial agent storage box is located in front of the cover shell.

4. The field returning machine for spraying fungicides according to claim 1, characterized in that: The hydraulic assembly includes a hydraulic oil tank arranged above the frame, a hydraulic pump arranged in front of the frame, multiple hydraulic oil pipes, an overflow valve, and a hydraulic filter arranged on the upper side of the third connecting arm. The hydraulic pump is connected to the hydraulic oil tank through a hydraulic oil pipe, and the hydraulic pump is connected to the rotary motor.

5. The field returning machine for spraying fungicides according to claim 1, characterized in that: The first connecting arm and the second connecting arm are respectively detachably provided with a first hydraulic rod and a second hydraulic rod.

6. The field returning machine for spraying fungicides according to claim 5, characterized in that: The third connecting arm is in a broken line shape, and a third hydraulic rod is detachably provided on one end of the third connecting arm away from the frame.

7. The field returning machine for spraying fungicides according to claim 2, characterized in that: An inclination transmitter is arranged on the rear side of the rear plate.

8. The field returning machine for spraying fungicides according to claim 2, characterized in that: A fender is arranged at the lower edge of the rear plate.

9. The field returning machine for spraying fungicides according to claim 2, characterized in that: The front panel is provided with an intelligent shooting module.

10. The field returning machine for spraying fungicides according to claim 1, characterized in that: A connecting plate is sleeved on the outer peripheral side of the knife roller, and a plurality of blades are arranged on the connecting plate.

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