Self-propelled pesticide spraying plant protection machine capable of adjusting operation height and breadth

Abstract

The utility model discloses a self-propelled pesticide spraying plant protection machine capable of adjusting operation height and breadth, and belongs to the technical field of pesticide spraying machines. Comprising a walking platform, a liquid medicine box, a plunger pump, a liquid conveying pipe, a spraying device and a spraying height adjusting device are installed on the walking platform, the spraying device comprises two spray head rods, a plurality of spraying spray heads are connected to the spray head rods, and the spraying height adjusting device comprises a guide frame, a lifting frame, a jack mechanism, a telescopic frame, a spray rod support and a lifting push rod. The lifting frame is vertically and movably connected with the guide frame, two ends of the jack mechanism are respectively connected with the lifting frame and the guide frame, the telescopic frame is a hinge parallel four-bar mechanism, two ends of the telescopic frame are respectively connected with the lifting frame and the spray rod support, and two ends of the lifting push rod are respectively hinged with the lifting frame and the spray rod support. The spraying height is adjusted in a two-section mode, the height adjusting range of spraying operation is wider, adaptability is improved, meanwhile, the height space can be saved, and storage is convenient.

Description

Technical Field

[0001] The utility model belongs to a pesticide spraying machine, in particular to a self-propelled pesticide spraying machine capable of adjusting the working height and width. Background Art

[0002] At present, the types and occurrence patterns of diseases and pests of mulberry crops are becoming more and more complicated. Traditional pesticide application technology is mainly based on manual backpack sprayers, backpack motorized spray powder sprayers and spray guns. They generally have problems such as low operating efficiency, poor operating quality, low prevention and control efficiency, and low pesticide utilization rate, which seriously affect the quality and yield of crops. How to achieve accurate and efficient pesticide application has become the current research focus of mulberry crop protection. At present, with the development of agricultural automation, self-propelled sprayers are becoming more and more widely used. At present, the sprayers on the market generally have the problem of complex spray operation height and width adjustment mechanism and low adjustment efficiency. In order to adapt to the pesticide application needs of mulberry crops with different row spacing, different plant heights, and different growth periods, there is an urgent need in the existing technology for a sprayer that can quickly adjust the spray operation height and width. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides a self-propelled spraying plant protection machine with adjustable working height and width, which can adapt to the application of pesticides for mulberry crops with different row spacings, different plant heights and different growth periods, and improves the adaptability and working efficiency of the spray mist machine.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A self-propelled pesticide spraying machine with adjustable working height and width comprises a walking platform, the walking platform comprises a frame and an engine, a gearbox, a walking mechanism and a control panel mounted on the frame, a liquid medicine tank, a plunger pump, an infusion pipe, a spray device and a spray height adjustment device are mounted on the walking platform, the plunger pump is connected to the engine through a belt drive, the liquid medicine tank is connected to the plunger pump through an infusion pipe, the spray device comprises two nozzle rods, a plurality of spray nozzles are connected to the nozzle rods, the spray nozzles are connected to the plunger pump through an infusion pipe, the spray height adjustment device comprises a guide frame, a lifting frame, a jack mechanism, a telescopic frame, a spray rod bracket and a lifting push rod, the lifting frame is movably connected to the guide frame up and down, the two ends of the jack mechanism are respectively connected to the lifting frame and the guide frame, the telescopic frame is a hinged parallel four-bar mechanism, the two ends of the telescopic frame are respectively connected to the lifting frame and the spray rod bracket, and the two ends of the lifting push rod are respectively hinged to the lifting frame and the spray rod bracket.

[0006] Preferably, both ends of the spray rod bracket are respectively hinged to the two spray head rods, and a folding push rod is respectively hinged between the spray rod bracket and the two spray head rods.

[0007] Furthermore, the spray nozzle and the nozzle rod are detachably connected via a nozzle buckle.

[0008] Furthermore, each of the spray nozzles is provided with a nozzle switch.

[0009] Preferably, the guide frame is provided with a locking bolt connected to the lifting frame.

[0010] Preferably, it also includes a mist device, which includes an axial flow fan, a mist nozzle, a nozzle mounting plate and an air guide plate, the axial flow fan is connected to the engine through a belt, the nozzle mounting plate is arranged between the air guide plates of the axial flow fan, a plurality of mist nozzles are installed on the nozzle mounting plate, and the mist nozzle is connected to the plunger pump through an infusion tube.

[0011] Furthermore, it also includes a common rail pipe, the input end of the common rail pipe is connected to the plunger pump through an infusion pipe, and the common rail pipe is provided with three output ends, wherein two output ends are respectively connected to the spray nozzles on two nozzle rods through infusion pipes, and one output end is connected to the mist nozzle through an infusion pipe, and branch switches are provided on the three output ends.

[0012] Furthermore, the spray nozzle and the mist nozzle are both fan-shaped nozzles.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model adjusts the height of the spray operation through a spray height adjustment device. The spray height adjustment device is a two-stage adjustment. The lifting of the lower stage is achieved by pushing the lifting frame by a jack device, and the lifting of the upper stage is achieved by driving the parallelogram telescopic frame by a lifting push rod. The two-stage height adjustment makes the height adjustment range of the spray operation wider, and can adapt to mulberry trees of different heights for plant protection operations. While improving adaptability, it can save height space and facilitate storage. Moreover, the width can be adjusted according to different mulberry tree planting row spacings. The operating width is adjusted by changing the number and spacing of nozzles, thereby avoiding the disadvantages of high labor intensity and low operating efficiency of traditional sprayers, and improving the adaptability and operating efficiency of spray mist operations. At the same time, the spray device is combined with the mist device to improve the adaptability and practicality of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the spray device and the spray height adjustment device of the utility model.

[0017] Figure 3 It is a partial structural schematic diagram of the spray device of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the misting device of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the plunger pump and the common rail pipe of the utility model.

[0020] In the figure: 1. spray nozzle; 2. nozzle rod; 3. lifting push rod; 4. spray rod bracket; 5. folding push rod; 6. telescopic frame; 7. jack mechanism; 8. axial flow fan; 9. mist nozzle; 10. walking platform; 11. plunger pump; 12. engine, 13. operating table; 14. liquid tank; 15. infusion tube; 16. lifting frame; 17. guide frame; 18. air guide plate; 19. nozzle mounting plate; 20. common rail pipe; 21. branch switch; 22. nozzle buckle, 23. nozzle switch. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only one system embodiment of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application. The relevant technical contents not described below can adopt or draw on the existing technology.

[0022] like Figure 1 , Figure 2 As shown, a self-propelled spraying machine with adjustable working height and width includes a walking platform 10, the walking platform 10 includes a frame and an engine 12 installed on the frame, a gearbox, a walking mechanism and an operating table 13, the walking platform 10 is installed with a liquid tank 14, a plunger pump 11, an infusion tube 15, a spray device, and a spray height adjustment device, the plunger pump 11 is connected to the engine 12 through a belt drive, the liquid tank 14 is connected to the plunger pump 11 through an infusion tube 15, the spray device includes two nozzle rods 2, and the nozzle rods 2 are connected with a plurality of spray The spray nozzle 1 is connected to the plunger pump 11 through an infusion tube 15. The spray height adjustment device includes a guide frame 17, a lifting frame 16, a jack mechanism 7, a telescopic frame 6, a spray rod bracket 4 and a lifting push rod 3. The lifting frame 16 is movably connected to the guide frame 17 up and down, and the two ends of the jack mechanism 7 are respectively connected to the lifting frame 16 and the guide frame 17. The telescopic frame 6 is a hinged parallel four-bar mechanism, and the two ends of the telescopic frame 6 are respectively connected to the lifting frame 16 and the spray rod bracket 4, and the two ends of the lifting push rod 3 are respectively hinged to the lifting frame 16 and the spray rod bracket 4.

[0023] Among them, the engine 12 is installed on the rear side of the self-propelled crawler, which provides mechanical power for the whole machine. The power of the engine 12 drives the input shaft of the gearbox through the belt drive, and the gearbox gear is adjusted through the operating console 13, thereby adjusting the speed and direction of the whole machine; the walking mechanism can adopt a crawler walking mechanism with good passability in complex terrain and conditions; the output end of the gearbox is connected to the plunger pump 11 through a belt to provide power for the plunger pump 11, so that the plunger pump 11 extracts the liquid medicine from the medicine box 14 and then pressurizes the liquid medicine to a certain pressure value. The belt adopts a V-belt, and the tension of the V-belt is adjusted by the adjustment handle on the operating console 13, so as to control the opening or closing of the plunger pump 11; the lifting frame 16 realizes the up and down movement along the guide frame 17 through two square tubes movably plugged on the guide frame 17; the spray height adjustment device is a two-stage adjustment, and the upper stage is lifted by the lifting push rod 3 drives the telescopic frame 6 to deform. Since the lifting push rod 3 is placed parallel to the two diagonals of the two parallelogram telescopic frames 6, the length of the diagonal of the telescopic frame 6 can be controlled by controlling the extension and contraction of the lifting push rod 3, thereby controlling the height of the spray rod bracket 4 connected to the telescopic frame 6. The lower section lifting is achieved by the jack mechanism 7 pushing the lifting frame 16. By controlling the rise and fall of the jack mechanism 7 between the lifting frame 16 and the guide frame 17, the extension and recovery amount of the lifting frame 16 relative to the guide frame 17 can be controlled. The two-stage height adjustment makes the height adjustment range of the spray operation wider, while improving the adaptability, it can save height space and facilitate storage; the jack mechanism 7, the lifting push rod 3 and the folding push rod 5 all use electricity as the power source, compared with hydraulic and manual adjustment, it saves installation space and component costs, and the adjustment process is more convenient and labor-saving.

[0024] As a preferred embodiment, Figure 1 , Figure 2 As shown, both ends of the spray rod bracket 4 are hinged to the two nozzle rods 2 respectively, and a folding push rod 5 is hinged between the spray rod bracket 4 and the two nozzle rods 2 respectively; by controlling the extension and retraction of the folding push rods 5 on both sides, the expansion and folding of the two nozzle rods 2 are controlled. When expanding, the folding push rod is pushed out, and the two nozzle rods 2 extend from the rear to the left and right, and finally expand in a straight line. When folding, the folding push rod is retracted, and the two nozzle rods 2 are folded about 90° toward the fuselage at the same time.

[0025] Further, such as Figure 3 As shown, the spray nozzle 1 and the nozzle rod 2 are detachably connected via a nozzle buckle 22, and the working width can be adjusted by adjusting the spacing of the spray nozzle 1 via the nozzle buckle 22.

[0026] Further, such as Figure 3 As shown, each spray nozzle 1 is provided with a nozzle switch 23, and the operation width can be adjusted by adjusting the number of spray nozzles 1 opened by the nozzle switch 23.

[0027] As a preferred embodiment, the guide frame 17 is provided with a locking bolt connected to the lifting frame 16, which is not shown in the figure. Except for the lifting process, the guide frame 17 and the lifting frame 16 can be fixed by the locking bolt. During operation, the horizontal stability of the lifting frame 16 and the nozzle rod 2 can be enhanced, the force on the jack mechanism 7 can be reduced, and its service life can be extended.

[0028] As a preferred embodiment, Figure 1 , Figure 4 As shown, this embodiment also includes a mist device, which includes an axial flow fan 8, a mist nozzle 9, a nozzle mounting plate 19 and an air guide plate 18. The axial flow fan 8 is connected to the engine 12 through a belt, the nozzle mounting plate 19 is arranged between the axial flow fan 8 and the air guide plates 18, and a plurality of mist nozzles 9 are installed on the nozzle mounting plate 19. The mist nozzle 9 is connected to the plunger pump 11 through an infusion tube 15.

[0029] During operation, after the high-pressure liquid medicine is sprayed out from the mist nozzle 9, it is secondary atomized by the high-speed airflow provided by the axial flow fan 8 to form fine droplets, which are guided to both sides by the air guide plate 18 and blown toward the target object to achieve the misting function.

[0030] Further, such as Figure 5 As shown, this embodiment also includes a common rail pipe 20, the input end of the common rail pipe 20 is connected to the plunger pump 11 through the infusion pipe 15, and the common rail pipe 20 is provided with three output ends, wherein two output ends are respectively connected to the spray nozzles 1 on the two nozzle rods 2 through the infusion pipes 15, and one output end is connected to the mist nozzle 9 through the infusion pipe 15, and branch switches 21 are provided on the three output ends.

[0031] The branch switches 21 on the two output ends respectively control the spray nozzles 1 on the two nozzle rods 2, and the branch switch 21 on one output end controls the mist nozzle 9. The opening and closing of the spray device and the mist device are independently controlled by the branch switch 21 on the common rail pipe 20. The two devices do not affect each other when working, and can achieve angle complementarity when working together, so that crops can receive drugs in all directions.

[0032] Furthermore, the spray nozzle 1 and the mist nozzle 9 both adopt fan-shaped nozzles, which can reduce repeated spraying and missed spraying compared with conical nozzles.

[0033] The use of the utility model for spraying and misting operations specifically includes the following steps:

[0034] a. Before operation, make sure that the drainage switch at the bottom of the liquid medicine tank 14 is closed, the pressure limiting valve behind the plunger pump 11 is in the closed state, and add the required liquid medicine into the liquid medicine tank 14;

[0035] b. If spraying is required, loosen the fastening bolts of the spray nozzle 1 buckle according to the width and height requirements of the spraying operation, and adjust the opening quantity and spacing of the spray nozzle 1 (the fan-shaped angle of the spray nozzle 1 is 110°);

[0036] c. Loosen the locking bolt on the lifting frame 16, adjust the telescopic distance of the jack mechanism 7 and the lifting push rod 3, so that the spray nozzle 1 reaches the required height. After adjustment, tighten the locking bolt to improve the stability of the lifting frame 16 and the nozzle rod 2;

[0037] d. Start the engine 12 and adjust the position of the machine so that the forward direction is aligned with the space between the rows;

[0038] e. Open the spray or mist branch switch 21 on the common rail pipe 20, pull the clutch handle of the plunger pump 11, and check whether the spray of each nozzle is uniform and smooth. If misting operation is required, pull the clutch handle of the axial flow fan 8 to start the axial flow fan 8;

[0039] f. According to the speed and spray volume requirements, adjust the gearbox gear and throttle opening and start spraying;

[0040] g. After spraying, open the drain switch at the bottom of the liquid medicine tank 14 to drain the residual liquid medicine, add clean water to the liquid medicine tank 14, open the plunger pump 11 and the spray and mist branch switch 21, flush the pipeline, nozzle and liquid medicine tank 14, and drain the residual liquid to prevent the residual liquid medicine from corroding the parts;

[0041] h. Open the folding push rods 5 on both sides, fold up the nozzle rod 2, loosen the locking bolts on the guide frame 17, adjust the jack mechanism 7 and the lifting push rod 3, lower the telescopic frame 6 and the lifting frame 16 to the lowest position, tighten the locking bolts, and store them in the warehouse.

[0042] The utility model combines a spray device and a mist device and adds a spray height and width adjustment device, so it is suitable for spraying pesticides on mulberry crops with different row spacings, different plant heights and different growth stages. The whole machine has a compact structure, is easy to adjust and maintain, has strong adaptability and high working efficiency.

Claims

1. A self-propelled pesticide spraying machine with adjustable working height and width, comprising a walking platform (10), wherein the walking platform (10) comprises a frame and an engine (12) mounted on the frame, a gearbox, a walking mechanism and an operating console (13), characterized in that: The walking platform (10) is equipped with a liquid medicine tank (14), a plunger pump (11), an infusion tube (15), a spray device and a spray height adjustment device. The plunger pump (11) is connected to the engine (12) via a belt drive. The liquid medicine tank (14) is connected to the plunger pump (11) via an infusion tube (15). The spray device includes two spray head rods (2). A plurality of spray heads (1) are connected to the spray head rods (2). The spray heads (1) are connected to the plunger pump (11) via an infusion tube (15). The spray height adjustment device includes A guide frame (17), a lifting frame (16), a jack mechanism (7), a telescopic frame (6), a spray rod support (4) and a lifting push rod (3), wherein the lifting frame (16) and the guide frame (17) are movably connected up and down, the two ends of the jack mechanism (7) are respectively connected to the lifting frame (16) and the guide frame (17), the telescopic frame (6) is a hinged parallelogram mechanism, the two ends of the telescopic frame (6) are respectively connected to the lifting frame (16) and the spray rod support (4), and the two ends of the lifting push rod (3) are respectively hinged to the lifting frame (16) and the spray rod support (4).

2. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 1 is characterized in that: Both ends of the spray rod support (4) are respectively hinged to the two spray head rods (2), and a folding push rod (5) is respectively hinged between the spray rod support (4) and the two spray head rods (2).

3. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 2 is characterized in that: The spray nozzle (1) and the nozzle rod (2) are detachably connected via a nozzle buckle (22).

4. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 3 is characterized in that: Each of the spray nozzles (1) is provided with a nozzle switch (23).

5. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 1, characterized in that: The guide frame (17) is provided with a locking bolt connected to the lifting frame (16).

6. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 1, characterized in that: The invention also comprises a misting device, the misting device comprising an axial flow fan (8), a misting nozzle (9), a nozzle mounting plate (19) and an air guide plate (18), the axial flow fan (8) being connected to the engine (12) through a belt, the nozzle mounting plate (19) being arranged between the axial flow fan (8) and the air guide plate (18), a plurality of misting nozzles (9) being mounted on the nozzle mounting plate (19), and the misting nozzles (9) being connected to the plunger pump (11) through an infusion tube (15).

7. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 6, characterized in that: It also includes a common rail pipe (20), the input end of the common rail pipe (20) being connected to the plunger pump (11) via a liquid infusion pipe (15), and the common rail pipe (20) being provided with three output ends, wherein two output ends are respectively connected to the spray nozzles (1) on two nozzle rods (2) via liquid infusion pipes (15), and one output end is connected to the mist nozzle (9) via the liquid infusion pipe (15), and each of the three output ends is provided with a branch switch (21).

8. The self-propelled pesticide spraying machine with adjustable working height and width according to claim 6 or 7, characterized in that: The spray nozzle (1) and the mist nozzle (9) are both fan-shaped nozzles.

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