A high ground clearance electric variable spray fertilization compound all-in-one machine

Abstract

The present invention belongs to the technical field of agricultural machinery and equipment, and specifically relates to a high-ground clearance electric variable spray fertilizer compound integrated machine, comprising a frame, a moving wheel, a steering control mechanism, a lifting mechanism, a spray mechanism and a fertilizing mechanism. The present invention uses a battery as a power source instead of a conventional engine as a power source, thereby reducing the overall gravity of the equipment, improving the flexibility of the equipment, and reducing pollution; the variable fertilization and variable spray functions are integrated into one, and one machine has two uses, thereby improving the utilization efficiency of the operating machinery and reducing the cost of agricultural production operations; the fertilization / spraying mechanism is placed in front to facilitate operators to observe the fertilization / spraying effect during the operation process; the fertilizer discharger of the fertilization mechanism changes the traditional ground wheel drive and adopts a stepper motor drive, which can not only solve the problem of missed fertilizer caused by ground wheel slippage, but also change the rotation speed of the fertilizer discharger according to the vehicle speed and per mu application rate through a controller to achieve the purpose of variable fertilization; and solve the problem that it is difficult for machines to enter the ground for topdressing in the middle growth period of high-stalk crops such as corn.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery and equipment, and in particular relates to a high-ground-clearance electric variable-speed spray fertilizer compound all-in-one machine. Background Art

[0002] Single-function operating machinery has always been the main content of agricultural machinery research and development, such as cultivators, small single-row topdressing machines, single-function sprayers, etc. However, due to the height limitation of tall crops such as corn, most of them are operated in the seedling stage or most of them have only one function, with low machinery utilization rate and high investment cost. Combining the variable spray function and (multi-row) variable fertilization function on a high-clearance four-wheel electric vehicle can perform spraying, tillage and fertilization operations in the early and middle stages of tall crops such as corn.

[0003] At present, domestic high-clearance sprayers can only perform single-function spraying operations, and the mechanical utilization efficiency is low, which greatly increases the planting costs for farmers. There are still many problems in the current corn production: intertillage fertilization is a very effective technical measure to loosen the soil and remove weeds during the growth and development of crops, and has always been an important measure to promote the growth and development of crops. However, due to the current lack of rural labor, high labor costs and low efficiency of the planting industry, intertillage fertilization operations in corn production have been gradually cancelled. In addition, traditional intertillage fertilization machinery does not have the function of high-clearance operation, and is mainly carried out in the corn seedling stage. Intertillage fertilization operations cannot be carried out in the middle of the growth period, and the role in promoting the soil environment and corn growth and development is limited;

[0004] The corn growing season is characterized by high temperatures and high rainfall, with an ample supply of water and fertilizer. A single application of fertilizer at planting can result in excessively high local soil solution concentrations, adversely affecting seed germination, emergence, and seedling growth, thus impacting seedling survival. Rapid growth during the seedling stage often leads to unbalanced growth and development, hindering corn yield. In the middle and late stages of corn growth, plots with poor fertility retention are prone to nitrogen deficiency, which can affect corn yield. Furthermore, frequent and abundant rainfall can lead to high soil moisture content and poor permeability, hindering the maintenance and functioning of root systems. Furthermore, corn's rapid early growth rate can easily lead to excessive plant growth, high ear height, and a high risk of lodging. Currently, the primary method of controlling lodging with a single application of fertilizer at planting is to spray growth retardants in the early stages of corn growth. However, while growth retardants reduce plant height and control lodging, they can also inhibit the growth and development of corn ears, negatively impacting yield. On the other hand, staged intertillage fertilization is an effective measure to improve soil permeability and control plant height.

[0005] From the perspective of rational fertilization, compared to the "one-shot" fertilization method currently used in production, topdressing can significantly improve nutrient utilization efficiency, reduce nutrient loss and environmental pollution, while meeting nutrient needs in the middle and late stages of the crop. However, due to the current labor shortage in rural areas, traditional intertillage and fertilization during the corn growing season is difficult to implement.

[0006] At present, in view of the problems existing in corn production such as labor shortage and lack of high-gap fertilization machinery in the middle stage of growth, there is an urgent need to develop agricultural machinery with simplified operation, diverse functions, multi-purpose, cost-saving and high efficiency, so as to improve the mechanization level of corn production management and increase corn yield. Based on this, it is necessary to study a high-gap electric variable spray fertilizer compound integrated machine. Summary of the Invention

[0007] In view of the defects and problems of existing equipment, the present invention provides a high-clearance electric variable spray fertilizer compound integrated machine, which effectively solves the problems of labor shortage and lack of high-clearance fertilizer machinery in the middle stage of growth in corn production.

[0008] The solution adopted by the present invention to solve its technical problems is: a high-ground-clearance electric variable spray fertilizer compound integrated machine, including a frame, moving wheels, a steering control mechanism, a lifting mechanism, a spray mechanism and a fertilizer mechanism; a controller is fixed to the front end of the upper surface of the frame, and the four moving wheels are symmetrically distributed on the four corners of the bottom of the frame; the steering control mechanism includes a steering wheel, a main control lever and a steering rod, the steering wheel is installed on one side of the controller, and the steering rod is arranged between the four moving wheels, one end of the main control lever is connected to the steering wheel, and the other end is connected to the steering rod at the front end; the lifting mechanism includes a parallelogram-shaped lifting frame and a driving hydraulic cylinder, the rear end of the lifting frame is hinged to the frame, the fixed part of the driving hydraulic cylinder is fixed to the frame, and its extended end is fixed to the middle part of the cross bar on the lifting frame; the spray mechanism includes a medicine box , plunger pump, middle spray rod, side spray rod and spray pipe, the medicine box is fixed at the rear end of the upper surface of the frame, the middle spray rod fixes the front side of the lifting frame, the side spray rods are arranged on both sides of the middle spray rod, the spray pipe is fixed on the side spray rod and the middle spray rod, the water inlet of the plunger pump is connected with the medicine box, and its water outlet is connected with the spray pipe through a three-way valve; the fertilizing mechanism includes a fertilizer discharger, a fertilizer box, a fertilizer discharger drive motor, a harrow leg and a furrow opener, the fertilizer box is installed at the front end of the lifting frame, the fertilizer discharger is installed on the lower surface of the fertilizer box, the fertilizer discharger drive motor is fixed on the lifting frame and is connected to the fertilizer discharger through a gear chain, a longitudinal cross bar is fixed on the front side of the lifting frame, a plurality of the harrow legs are equidistantly and evenly installed on the longitudinal cross bar, the harrow legs and the fertilizer discharger are connected by a fertilizer guide hose, and the furrow opener is fixed to the lower end of the harrow legs.

[0009] Furthermore, vertical support rods are fixed on the inner sides of the central axes of the four moving wheels, connecting blocks are fixed on the upper ends of the vertical support rods, and protrusions adapted to the connecting blocks are fixed on the four corners of the frame. Fixing holes are evenly opened on the upper surfaces of the protrusions, and lock wires are fixed in the fixing holes.

[0010] Furthermore, the moving wheel at the rear end is transmission-connected to a drive motor, and the drive motor is connected to a battery.

[0011] Furthermore, support frames are fixed on both sides of the middle spray rod, one end of the side spray rod is hinged to the support frame, and a spring is mounted on the rotating shaft at the hinge.

[0012] Furthermore, a U-shaped bayonet is clamped on the longitudinal crossbar, a fixing sleeve is fixed on the U-shaped bayonet via a nut, and the plow leg is installed on the fixing sleeve.

[0013] Furthermore, positioning holes are evenly opened on the legs of the plow legs, and bolts adapted to the positioning holes are provided on the fixing sleeve.

[0014] Furthermore, an arc-shaped guide plate is provided at the hinge between the lifting frame and the vehicle frame.

[0015] Furthermore, anti-slip strips are evenly arranged on the moving wheels.

[0016] The beneficial effects of the present invention are as follows: through the coordinated arrangement of the vehicle frame, the movable wheels and the steering control mechanism, the four movable wheels are installed on the vehicle frame during use, and the direction of the movable wheels can be adjusted by turning the steering wheel through the steering rod, which facilitates the user to control the all-in-one machine in conjunction with the controller; through the coordinated arrangement of the lifting frame and the driving hydraulic cylinder, the driving hydraulic cylinder is started by the controller during use, and the driving hydraulic cylinder is extended and retracted to carry the lifting frame to rotate around the longitudinal center line of the hinged connection between the lifting frame and the vehicle frame, thereby realizing the lifting and lowering of the mechanism and facilitating the operation of the equipment.

[0017] Through the coordinated setting of the medicine box, plunger pump, middle spray rod, side spray rod and spray pipe, the positions of the middle spray rod and side spray rod are adjusted during use, and then the plunger pump is started through the controller to transport the medicine liquid from the medicine box to the spray pipe, which can expand the spraying range, save labor and improve the spraying efficiency; through the coordinated setting of the fertilizer dispenser, fertilizer box, fertilizer dispenser drive motor, harrow legs and furrow opener, when in use, fertilizer is poured into the fertilizer box, the fertilizer dispenser drive motor is started through the controller, and then the fertilizer dispenser is driven by the gear chain drive, and then the fertilizer is transported to the harrow legs through the fertilizer guide hose, and fertilization is achieved in cooperation with the furrow opener, thereby improving the fertilization efficiency of the equipment.

[0018] By coordinating the vertical support rods, connecting blocks and protrusions, the four movable wheels are all installed separately when in use. This way, the frame is set relatively high to avoid damaging crops during work. By fixing the connecting blocks in different fixing holes on the protrusions, the spacing of the movable wheels can be adjusted according to the crop planting gaps, thereby improving the working range of the equipment.

[0019] Therefore, the present invention has a novel structure. By setting two operation interfaces on the controller, when performing a spray operation, the spray boom width and per mu fertilizer application setting values ​​are input by pressing a button on the controller. After the vehicle is started, the speed sensor, flow sensor, and pressure sensor collect, monitor, and display relevant parameters on time. The controller regularly compares the actual value of the unit area fertilizer application and the vehicle speed with the set value, and adjusts the speed of the plunger pump to cause the pressure in the spray pipe to change, so that the actual unit area fertilizer application is consistent with the set value, thereby achieving the purpose of variable spraying; when performing a fertilizing operation, the fertilizer width and per mu fertilizer application setting values ​​are input by pressing a button on the controller. After the vehicle is started, the speed sensor and fertilizer sensor collect, monitor, and display relevant parameters on time. The controller regularly compares the actual value of the unit area fertilizer application and the vehicle speed with the set value, and automatically adjusts the speed of the fertilizer dispenser drive motor to change the actual fertilizer application, and then the actual unit area fertilizer application is consistent with the set value, thereby achieving the purpose of precise variable fertilization.

[0020] The present invention is provided with two operating states. When performing variable spraying operation, the controller is switched to the spraying operation interface for parameter setting. At this time, the harrow legs installed on the lifting frame are moved to a non-working state and tightened to prevent the spraying effect from being affected during the spraying operation. When performing intertillage and fertilization operation, the controller is switched to the fertilization operation interface for parameter setting, the harrow legs are adjusted to the working state, and intertillage and fertilization operation is performed.

[0021] The present invention uses a battery as its power source instead of a conventional engine, thereby reducing the overall gravity of the equipment, improving the flexibility of the equipment, and reducing pollution; it integrates the variable fertilization and variable spraying functions into one machine, with dual purposes, improving the utilization efficiency of operating machinery and reducing agricultural production operating costs; the fertilization / spraying mechanism is placed in front for the convenience of operators observing the fertilization / spraying effect during the operation; the fertilizer discharger of the fertilization mechanism changes the traditional ground wheel drive to a stepper motor drive, which not only solves the problem of missed fertilizer application caused by ground wheel slippage but also achieves the purpose of variable fertilization by changing the rotation speed of the fertilizer discharger according to the vehicle speed and per mu fertilizer application rate through the controller; it solves the problem of difficulty in entering the ground for topdressing of tall crops such as corn in the middle growth period. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 for Figure 1Schematic diagram of the main structure.

[0024] Figure 3 for Figure 1 Schematic diagram of the left view structure.

[0025] Figure 4 for Figure 1 Schematic diagram of the upward-looking structure.

[0026] Figure 5 This is a schematic diagram of the axonometric structure of the lifting frame in the present invention.

[0027] Figure 6 This is a schematic diagram of the axonometric structure of the moving wheel in the present invention.

[0028] Figure 7 It is a schematic diagram of the top structure of the frame of the present invention.

[0029] Figure 8 It is a schematic structural diagram of the right side of the frame of the present invention.

[0030] The numbers in the figure are: 1 for the frame, 2 for the moving wheel, 3 for the lifting frame, 4 for the driving hydraulic cylinder, 5 for the medicine box, 6 for the plunger pump, 7 for the middle spray rod, 8 for the side spray rod, 9 for the spraying pipe, 10 for the fertilizer dispenser, 11 for the fertilizer box, 12 for the fertilizer dispenser drive motor, 13 for the harrow leg, 14 for the furrow opener, 15 for the longitudinal cross bar, 16 for the fertilizer guide hose, 17 for the vertical support rod, 18 for the connecting block, 19 for the protrusion, 20 for the fixing hole, 21 for the support frame, 22 for the spring, 23 for the U-shaped pin, 24 for the fixing sleeve, 25 for the positioning hole, 26 for the arc guide plate, and 27 for the anti-slip strip. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and examples.

[0032] Example 1: This embodiment aims to provide a high-ground clearance electric variable spray fertilizer compound integrated machine, which is mainly used to fill the gap in the existing high-cultivation fertilization technology of tall crops, so as to solve the problems of labor shortage and lack of high-ground clearance fertilization machinery in the middle of growth in corn production. Based on this, this embodiment is mainly aimed at the integrated machine, and a lifting mechanism, a spray mechanism and a fertilizing mechanism are set.

[0033] In specific structures, such as Figure 1-5As shown in the figure, a high-ground clearance electric variable spray fertilizer compound all-in-one machine includes a frame 1, moving wheels 2, a steering control mechanism, a lifting mechanism, a spray mechanism and a fertilizing mechanism; a controller is fixed to the front end of the upper surface of the frame 1, and the four moving wheels 2 are symmetrically distributed on the four corners of the bottom of the frame 1. The steering control mechanism includes a steering wheel, a main control lever and a steering rod. The steering wheel is installed on one side of the controller, and the steering rod is arranged between the four moving wheels. One end of the main control lever is connected to the steering wheel, and the other end is connected to the steering rod at the front end; through the coordinated arrangement of the frame 1, the moving wheels 2 and the steering control mechanism, the four moving wheels 2 are installed on the frame 1 when in use, and the direction of the moving wheels can be adjusted by turning the steering wheel through the steering rod, which is convenient for users to operate the all-in-one machine in conjunction with the controller.

[0034] The lifting mechanism includes a parallelogram-shaped lifting frame 3 and a driving hydraulic cylinder 4. The rear end of the lifting frame 3 is hinged to the frame 1, and the fixed part of the driving hydraulic cylinder 4 is fixed to the frame 1, and its extended end is fixed to the middle part of the crossbar on the lifting frame 3. Through the coordinated arrangement of the lifting frame 3 and the driving hydraulic cylinder 4, the driving hydraulic cylinder 4 is activated by the controller during use. The driving hydraulic cylinder 4 is extended and retracted to carry the lifting frame 3 and rotate around the longitudinal center line of the hinge between it and the frame 1, thereby realizing the lifting and lowering of the mechanism and facilitating the operation of the equipment.

[0035] The spray mechanism includes a medicine box 5, a plunger pump 6, a middle spray rod 7, a side spray rod 8 and a spray pipe 9. The medicine box 5 is fixed to the rear end of the upper surface of the frame 1, the middle spray rod 7 is fixed to the front side of the lifting frame 3, the side spray rods 8 are arranged on both sides of the middle spray rod 7, and the spray pipe 9 is fixed on the side spray rod 7 and the middle spray rod 8. The water inlet of the plunger pump 6 is connected to the medicine box 5, and its water outlet is connected to the spray pipe 9 through a three-way valve; through the coordinated arrangement of the medicine box 5, the plunger pump 6, the middle spray rod 7, the side spray rod 8 and the spray pipe 9, the positions of the middle spray rod 7 and the side spray rod 8 are adjusted during use, and then the plunger pump 6 is started by the controller to transport the liquid medicine from the medicine box 5 to the spray pipe 9, which can expand the spraying range, save labor and improve the spraying efficiency.

[0036] The fertilizing mechanism includes a fertilizer dispenser 10, a fertilizer box 11, a fertilizer dispenser drive motor 12, a plow leg 13 and a furrow opener 14. The fertilizer box 11 is installed at the front end of the lifting frame 3, the fertilizer dispenser 10 is installed on the lower surface of the fertilizer box 11, the fertilizer dispenser drive motor 12 is fixed on the lifting frame 3, and is connected to the fertilizer dispenser 10 through a gear chain. A longitudinal cross bar 15 is fixed to the front side of the lifting frame 3, and multiple plow legs 13 are evenly installed on the longitudinal cross bar 15. There is a gap between the plow legs 13 and the fertilizer dispenser 10. The fertilizer guide hose 16 is connected, and the furrow opener 14 is fixed at the lower end of the harrow leg 13; through the coordinated arrangement of the fertilizer dispenser 10, the fertilizer box 11, the fertilizer dispenser drive motor 12, the harrow leg 13 and the furrow opener 14, when in use, fertilizer is poured into the fertilizer box 11, the fertilizer dispenser drive motor 12 is started by the controller, and then the fertilizer dispenser 10 is driven to work through the gear chain transmission, and then the fertilizer is transported to the harrow leg 13 through the fertilizer guide hose 16, and fertilization is achieved in cooperation with the furrow opener 14, thereby improving the fertilization efficiency of the equipment.

[0037] In this embodiment, by setting two operation interfaces on the controller, when performing spraying operations, the setting values ​​of the spray boom width and the amount of fertilizer applied per mu are input by pressing buttons on the controller. After the vehicle is started, the speed sensor, flow sensor, and pressure sensor collect, monitor, and display relevant parameters on time. The controller regularly compares the actual value of the amount of fertilizer applied per unit area and the vehicle speed with the set value, and adjusts the speed of the plunger pump 6 to cause the pressure in the spray pipe 9 to change, so that the actual amount of fertilizer applied per unit area is consistent with the set value, thereby achieving the purpose of variable spraying; when performing fertilizing operations, the setting values ​​of the fertilizer width and the amount of fertilizer applied per mu are input by pressing buttons on the controller. After the vehicle is started, the speed sensor and fertilizer sensor collect, monitor, and display relevant parameters on time. The controller regularly compares the actual value of the amount of fertilizer applied per unit area and the vehicle speed with the set value, and automatically adjusts the speed of the fertilizer dispenser drive motor 12 to change the actual amount of fertilizer applied, and then make the actual amount of fertilizer applied per unit area consistent with the set value, thereby achieving the purpose of precise variable fertilization.

[0038] The present invention sets two working states. When performing variable spraying operation, the controller is switched to the spraying operation interface for parameter setting. At this time, the harrow legs 13 installed on the lifting frame 3 are moved to the non-working state and tightened to prevent the spraying effect from being affected during the spraying operation. When performing intertillage and fertilization operation, the controller is switched to the fertilization operation interface for parameter setting, and the harrow legs 13 are adjusted to the working state to perform intertillage and fertilization operation.

[0039] The present invention uses a battery as a power source instead of a conventional engine, thereby reducing the overall gravity of the equipment, improving the flexibility of the equipment, and reducing pollution; it integrates variable fertilization and variable spraying functions into one, with dual purposes in one machine, thereby improving the utilization efficiency of operating machinery and reducing agricultural production operating costs; the fertilization / spraying mechanism is placed in front for the convenience of operators observing the fertilization / spraying effect during the operation; the fertilizer mechanism fertilizer dispenser 10 changes the traditional ground wheel drive to a stepper motor drive, which not only solves the problem of missed fertilizer application caused by ground wheel slippage but also achieves the purpose of variable fertilization by changing the rotation speed of the fertilizer dispenser 10 according to the vehicle speed and per mu fertilizer application through the controller; it solves the problem of difficulty in entering the ground for topdressing of tall crops such as corn in the middle growth period.

[0040] Example 2: This example is basically the same as Example 1, except that this example further describes the specific structure of the moving wheel 2.

[0041] In specific structures, such as Figure 1 and 6 As shown in the figure, vertical support rods 17 are fixed to the inner sides of the central axes of the four mobile wheels 2, and connecting blocks 18 are fixed to the upper ends of the vertical support rods 17. Protrusions 19 adapted to the connecting blocks 18 are fixed to the four corners of the frame 1. Fixing holes 20 are evenly opened on the upper surfaces of the protrusions 19, and lock wires are fixed in the fixing holes 20. Through the coordinated arrangement of the vertical support rods 17, the connecting blocks 18 and the protrusions 19, the four mobile wheels 2 are set to be installed separately when in use. In this way, the frame 1 is set relatively high to avoid damage to crops during work. By fixing the connecting blocks 18 in different fixing holes 20 on the protrusions 19, the spacing of the mobile wheels 2 can be adjusted according to the planting gap of crops, thereby improving the working scope of the equipment.

[0042] The rear end moving wheel 2 is connected to the driving motor, and the driving motor is connected to the battery; the rear end moving wheel 2 is driven to rotate by the battery and the driving motor, which is lighter than conventional engine power and is convenient for controlling the equipment.

[0043] Example 3: This example is basically the same as Example 1, except that this example further describes the specific structure of the support frame 21.

[0044] In specific structures, such as Figure 1 and 5 As shown in the figure, support frames 21 are fixed on both sides of the middle spray rod 7, one end of the side spray rod 8 is hinged on the support frame 21, and a spring 22 is mounted on the rotating shaft at the hinge; through the arrangement of the support frame 21 and the spring 22, the elasticity of the spring 22 can be used to tighten and fix the side spray rod 8, and one end of the side spray rod 8 is hinged on the support frame 21, which can facilitate the opening and closing of the side spray rod 8 and facilitate the control of the spraying range of the medicine.

[0045] A U-shaped bayonet 23 is clamped on the longitudinal cross bar 15, and a fixing sleeve 24 is fixed to the U-shaped bayonet 23 by a nut, and the harrow leg 13 is installed on the fixing sleeve 24; through the arrangement of the U-shaped bayonet 23 and the fixing sleeve 24, the U-shaped bayonet 23 and the fixing sleeve 24 fix the harrow leg 13 to the longitudinal cross bar 15 through bolts, which can facilitate people to adjust the distance between the harrow legs 13 according to the required fertilization interval.

[0046] Positioning holes 25 are evenly opened on the legs of the plow leg 13, and bolts adapted to the positioning holes 25 are provided on the fixing sleeve 24; by setting the positioning holes 25, the fixing sleeve 24 is fixed together with the positioning holes 25 at different positions, and the use height of the plow leg 13 can be adjusted to meet the requirements of fertilizing at different depths in different lands.

[0047] Example 4: This example is basically the same as Example 1, with the difference being that this example further describes the specific structure of the arc-shaped guide plate 26.

[0048] In specific structures, such as Figure 1 and 4 As shown in FIG, an arc-shaped guide plate 26 is provided at the hinge between the lifting frame 3 and the vehicle frame 1; the arrangement of the arc-shaped guide plate 26 can provide guidance for the adjustment of the lifting frame 3 and also provide position limiting protection therefor.

[0049] Anti-skid strips 27 are evenly arranged on the moving wheels 2; through the arrangement of the anti-skid strips 27, the anti-skid strips 27 can prevent the moving wheels 2 from slipping.

[0050] Example 5: This example is basically the same as Example 1, except that this example further describes the specific structure of the vehicle frame 1.

[0051] In specific structures, such as Figure 7-8 As shown in the figure, longitudinal slides are fixed to the four corners of the frame 1, a telescopic rod is fixed to the inner end of the longitudinal slide, a slider adapted to the longitudinal slide is fixed to the outer end of the telescopic rod, the slider is fixed to the vertical support rod 17 of the moving wheel 2, and the longitudinal steering rod between the moving wheels 2 is set as an adjustable rod; a cylinder is fixed to the rear side of the frame 1, a lifting column is provided on the lower surface of the cylinder, and an anti-skid plate is fixed to the lower end of the lifting column; a telescopic connecting shaft is fixed to the front side of the frame 1, and a counterweight is fixed to the outer end of the connecting shaft.

[0052] When the lifting frame 3 and the plowing leg 13 are both adjusted to the highest position, the cylinder is started to control the lifting column to lower the anti-slip plate to the lowest position, the front moving wheel 2 and the lifting column become a fulcrum, and the rear moving wheel 2 is suspended. At this time, the telescopic rod is controlled to move with the slider in the longitudinal slideway to adjust the position of the rear moving wheel 2. This arrangement makes it easy for people to adjust the spacing of the moving wheels 2, saving time and effort. When adjusting the rear moving wheel 2, the connecting shaft and the counterweight are installed at the front end of the frame 1. At this time, the front moving wheel 2 is the fulcrum. By using the principle of leverage, the rear moving wheel 2 is tilted by moving the counterweight to the left. This also makes it easy to adjust the spacing of the moving wheels 2.

Claims

1. A high ground clearance electric variable spray fertilizer compound integrated machine, characterized by: It includes a frame, moving wheels, a steering control mechanism, a lifting mechanism, a spraying mechanism and a fertilizing mechanism; a controller is fixed at the front end of the upper surface of the frame, and the four moving wheels are symmetrically distributed at the four corners of the bottom of the frame; the steering control mechanism includes a steering wheel, a main control rod and a steering rod, the steering wheel is installed on one side of the controller, and the steering rod is arranged between the four moving wheels, one end of the main control rod is connected to the steering wheel, and the other end is connected to the steering rod at the front end; the lifting mechanism includes a parallelogram-shaped lifting frame and a driving hydraulic cylinder, the rear end of the lifting frame is hinged on the frame, the fixed part of the driving hydraulic cylinder is fixed on the frame, and its extended end is fixed to the middle part of the cross bar on the lifting frame; the spray mechanism includes a medicine box, a plunger pump, a middle spray rod, a side spray rod and a spray pipe, the medicine box is fixed to the rear end of the upper surface of the frame, and the middle spray rod is fixed to the lifting frame. On the front side of the lowering frame, the side spray rods are arranged on both sides of the middle spray rod, and support frames are fixed on both sides of the middle spray rod, one end of the side spray rod is hinged on the support frame, and a spring is set on the rotating shaft at the hinge, and the spray pipe is fixed on the side spray rod and the middle spray rod, and the water inlet of the plunger pump is connected with the medicine box, and the water outlet thereof is connected with the spray pipe through a three-way valve; the fertilizing mechanism comprises a fertilizer discharger, a fertilizer box, a fertilizer discharger driving motor, a hoe leg and a furrow opener, the fertilizer box is installed at the front end of the lifting frame, the fertilizer discharger is installed on the lower surface of the fertilizer box, the fertilizer discharger driving motor is fixed on the lifting frame, and is connected to the fertilizer discharger through a gear chain, a longitudinal cross bar is fixed on the front side of the lifting frame, and a plurality of the hoe legs are evenly and equidistantly installed on the longitudinal cross bar, the hoe leg and the fertilizer discharger are connected through a fertilizer guide hose, and the furrow opener is fixed at the lower end of the hoe leg; The four corners of the frame are fixed with longitudinal slides, the inner ends of the longitudinal slides are fixed with telescopic rods, the outer ends of the telescopic rods are fixed with sliders adapted to the longitudinal slides, the sliders are fixed on the vertical support rods of the moving wheels, and the longitudinal steering rods between the moving wheels are arranged as adjustable rods; a cylinder is fixed to the rear side of the frame, a lifting column is arranged on the lower surface of the cylinder, and an anti-skid plate is fixed to the lower end of the lifting column; a telescopic connecting shaft is fixed to the front side of the frame, and a counterweight is fixed to the outer end of the connecting shaft; The device has two operating states. When performing variable spray operation, the controller switches to the spray operation interface to set parameters. At this time, the plow legs installed on the lifting frame are moved to a non-working state and tightened. When performing intertillage and fertilization operations, the controller switches to the fertilization operation interface to set parameters, adjust the plow legs to a working state, and perform intertillage and fertilization operations.

2. The high ground clearance electric variable spray fertilizer compound integrated machine according to claim 1, characterized in that: A vertical support rod is fixed on the inner side of the central axis of the four moving wheels, a connecting block is fixed on the upper end of the vertical support rod, and a protrusion adapted to the connecting block is fixed on the four corners of the frame. Fixing holes are evenly opened on the upper surface of the protrusion, and locking wires are fixed in the fixing holes.

3. The high ground clearance electric variable spray fertilizer compound integrated machine according to claim 1, characterized in that: The moving wheel at the rear end is drivingly connected to a driving motor, and the driving motor is connected to a storage battery.

4. The high ground clearance electric variable spray fertilizer compound integrated machine according to claim 1, characterized in that: A U-shaped bayonet is clamped on the longitudinal cross bar, a fixing sleeve is fixed on the U-shaped bayonet through a nut, and the hoe leg is installed on the fixing sleeve.

5. The high ground clearance electric variable spray fertilizer compound integrated machine according to claim 4, characterized in that: Positioning holes are evenly opened on the legs of the plow legs, and bolts adapted to the positioning holes are arranged on the fixing sleeve.

6. The high ground clearance electric variable spray fertilizer compound integrated machine according to claim 1, characterized in that: An arc-shaped guide plate is arranged at the hinged position between the lifting frame and the vehicle frame.

7. The high ground clearance electric variable spray fertilizer compound integrated machine according to claim 1, characterized in that: Anti-slip strips are evenly arranged on the moving wheels.

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