Stem and leaf mechanical extruding and rubbing and liquid medicine coating combined weed killing operation single body

Abstract

The invention discloses a stem and leaf mechanical extruding and rubbing and liquid medicine coating combined weed killing operation single body, and belongs to agricultural machinery. A herbicide liquid box, a tower-free liquid supply device, an automatic controller assembly and an electromagnetic valve are sequentially and fixedly arranged at the upper end of a single frame, a pesticide liquid pump is fixedly arranged on the automatic controller assembly, a delta parallel mechanical arm is arranged on the lower side portion of the middle of the single frame, an actuator assembly is fixedly arranged at the lower end of the delta parallel mechanical arm, the electromagnetic valve is communicated with the actuator assembly, and a weed recognition sensor is arranged on the single frame through a support. The actuator assembly is formed by assembling a hollow shaft stepping motor, a liquid conveying pipe, a motor shaft, a coupler, a hanging shaft, a fixing sleeve, an atomizing nozzle, a seepage cylinder, a cylinder type sun gear, a sponge body, a crank arm, a gear shaft, a cylinder type planetary gear, an upper sun belt wheel, a lower sun belt wheel, a planetary gear shaft, an upper planetary belt wheel, a lower planetary belt wheel, an annular upper belt and an annular lower belt. When the monomer is used for physically damaging stems and leaves of weeds, the herbicide liquid is coated at the damaged part to promote the weeds to absorb the liquid, and the monomer has the characteristics of small liquid dosage, high weeding rate and good operation effect.

Description

Technical Field

[0001] This invention pertains to agricultural machinery, specifically a single unit suitable for inter-row cultivation and weed control operations. Background Technology

[0002] Agricultural weed control mainly involves two methods: mechanical weeding and chemical weeding. Chemical weeding, due to its convenience and high efficiency, is currently the most widely used choice. Its operation involves spraying herbicides directly onto the surface of weed stems and leaves using sprayers, relying on the herbicide's action to achieve weed control. However, current chemical weeding methods have significant drawbacks: the sprayers only apply the herbicide, without causing mechanical damage to the weed stems and leaves, leaving the weed epidermis intact and with weak adsorption and penetration of the herbicide. This not only significantly reduces herbicide utilization, leading to pesticide waste and increased operating costs, but also results in a lower weed control rate due to insufficient absorption; unabsorbed herbicide can easily diffuse through runoff and volatilization, causing environmental pollution and potentially harming crops. Therefore, combining the physical intervention advantages of mechanical weeding with the development of new spray-applied herbicides that improve herbicide absorption efficiency is of great significance for solving the pain points of chemical weeding and achieving efficient and environmentally friendly weed control. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in light of the current practical needs for mechanized weed control operations using chemical herbicides, to develop and design a single unit for combined stem and leaf mechanical squeezing and rubbing with liquid application for weed control, thereby significantly improving the utilization rate of chemical agents, reducing the amount of agents used, lowering operating costs, reducing environmental pollution, and benefiting crop growth.

[0004] The purpose of this invention is achieved as follows: a pesticide liquid tank, a towerless liquid dispenser, an automatic control assembly, and a solenoid valve are sequentially fixed on the upper end of a single unit frame. The pesticide pump is fixed on the automatic control assembly. A hydraulic gauge and a safety valve are installed on the towerless liquid dispenser. The inlet of the pesticide pump is connected to the outlet of the pesticide liquid tank through a rigid pipe B. The outlet of the pesticide pump is connected to the inlet of the towerless liquid dispenser through a rigid pipe A. The outlet of the towerless liquid dispenser is connected to the inlet of the solenoid valve through a flexible hose A. A delta parallel robotic arm is installed on the lower middle part of the single unit frame. An actuator assembly is fixed on the lower end of the delta parallel robotic arm. The outlet of the solenoid valve is sequentially connected to the actuator assembly through interconnected flexible hoses B and C. A weed identification sensor is installed on the lower inner side of the single unit frame via a bracket.

[0005] The actuator assembly includes a hollow shaft stepper motor. An infusion tube is connected and mounted on the upper end of the hollow shaft stepper motor via a mounting bracket. A suspension shaft is fixedly mounted on the lower end of the motor shaft via a coupling. A fixed sleeve is rotatably fitted onto the lower end of the suspension shaft. An atomizing nozzle, a seepage cylinder, and a cylindrical sun gear are sequentially fixedly mounted on the lower end of the fixed sleeve from the center outwards. Long, intermittent through holes are formed axially on the cylinder wall at the root of the cylindrical sun gear teeth. A fixed component is pressed and inserted between the outside of the seepage cylinder and the inside of the cylindrical sun gear. A sponge body, wherein sponge axial bosses on the outer circumference of the sponge body are intermittently inserted into the elongated through holes of the cylindrical sun gear, and the outer ends of the sponge axial bosses are exposed outside the elongated through holes. A crank arm is fixedly mounted on the hanging shaft above the fixed sleeve. The gear shaft is fixedly mounted on the lower end of the crank arm. A cylindrical planetary gear is rotatably mounted on the outside of the gear shaft. The cylindrical planetary gear is constantly meshed with the cylindrical sun gear, and the tooth tip of the cylindrical planetary gear has a continuous intermittent compression fit with the sponge axial bosses exposed outside the elongated through holes. A positioning bracket is fixedly installed on the lower end of the hollow shaft stepper motor, located outside the coupling. A sun pulley is fixedly installed on the lower end of the positioning bracket. The hanging shaft is rotatably inserted into the center hole of the upper sun pulley. A lower sun pulley is fixedly installed on the upper end of the fixing sleeve. The hanging shaft is rotatably inserted into the center hole of the lower sun pulley. A planetary gear shaft is vertically rotatably inserted on the side of the crank arm. An upper planetary pulley and a lower planetary pulley are respectively installed on the upper and lower ends of the planetary gear shaft. An upper annular belt and a lower annular belt are respectively fitted onto the upper sun pulley. The transmission ratio between the upper and lower sun belt pulleys is 1:1. The fixing sleeve is sequentially connected to the positioning frame in a circumferential positioning manner through the lower sun belt pulley, the lower annular belt, the lower planetary belt pulley, the planetary gear shaft, the upper planetary belt pulley, the upper annular belt, and the upper sun belt pulley. The wires connect the automatic controller assembly to the weed identification sensor, the delta parallel robotic arm, the solenoid valve, the pesticide pump, and the hollow shaft stepper motor, thus forming a single unit for combined stem and leaf mechanical squeezing and rubbing and pesticide application weed control.

[0006] This invention creates a system where, during weed control operations, the rotational meshing of a cylindrical sun gear and a cylindrical planetary gear mechanically crushes and rubs the identified weed stems and leaves, causing mechanical damage. Simultaneously, the herbicide solution, sprayed from an atomizing nozzle and absorbed into a sponge, is applied to the damaged areas of the weed stems and leaves. Utilizing the weed's own transport system, the herbicide solution circulates rapidly within the weed and is absorbed, ultimately killing the weed. This achieves a synergistic weed control mode of first destroying the weed and then administering the herbicide. This invention features a novel and unique structure with a rational design, offering advantages such as high weed control effect, low solution dosage, high solution utilization, low operating costs, and minimal environmental pollution, providing a new single unit for mechanized weed control operations. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of a single herbicide application unit that combines mechanical squeezing and rubbing of stems and leaves with liquid application.

[0008] Figure 2 yes Figure 1 Top view;

[0009] Figure 3 This is a schematic diagram of the overall structure of the actuator assembly;

[0010] Figure 4 yes Figure 3 A-A sectional view;

[0011] Figure 5 This is a schematic diagram of a cylindrical sun gear structure;

[0012] Figure 6 This is a schematic diagram of the sponge's structure;

[0013] Figure 7 This is a three-dimensional schematic diagram of the overall structure of the present invention.

[0014] Part number description in the picture:

[0015] 1. Single frame; 2. Herbicide liquid tank; 3. Towerless liquid dispenser; 4. Hydraulic gauge; 5. Safety valve; 6. Rigid pipe A; 7. Flexible hose A; 8. Flexible hose B; 9. Rigid pipe B; 10. Liquid pump; 11. Automatic control assembly; 12. Solenoid valve; 13. Delta parallel robotic arm; 14. Support frame; 15. Weed identification sensor; 16. Flexible hose C; 17. Actuator assembly; 17-1. Infusion tubing; 17-2. Card holder; 17-3. Hollow shaft stepper motor; 17-4. Coupling; 17-5. Annular upper belt; 17-6. Upper planetary pulley; 17-7. Planetary gear shaft, 17-8, lower planetary belt pulley, 17-9, annular lower belt, 17-10, atomizing nozzle, 17-11, cylindrical sun gear, 17-11-1, elongated through hole, 17-12, cylindrical planetary gear, 17-13, sponge body, 17-13-1, sponge axial boss, 17-14, seepage cylinder, 17-15, gear shaft, 17-16, fixing sleeve, 17-17, lower sun belt pulley, 17-18, crank arm, 17-19, hanging shaft, 17-20, upper sun belt pulley, 17-21, positioning frame, 17-22, motor shaft. Detailed Implementation

[0016] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A single unit for combined stem and leaf mechanical extrusion and rubbing with liquid application for weed control comprises, sequentially fixed to the upper end of a unit frame 1, a weed control liquid tank 2, a towerless liquid dispenser 3, an automatic control assembly 11, and a solenoid valve 12. A liquid pump 10 is fixed to the automatic control assembly 11. A hydraulic gauge 4 and a safety valve 5 are installed on the towerless liquid dispenser 3. The inlet of the liquid pump 10 is connected to the outlet of the weed control liquid tank 2 via a rigid pipe B9, and the outlet of the liquid pump 10 is connected to the inlet of the towerless liquid dispenser 3 via a rigid pipe A6. The outlet of the towerless liquid feeder 3 is connected to the inlet of the solenoid valve 12 through a hose A7. A delta parallel robotic arm 13 is installed on the lower middle part of the single frame 1. The actuator assembly 17 is fixedly mounted on the lower end of the delta parallel robotic arm 13. The outlet of the solenoid valve 12 is connected to the actuator assembly 17 through hoses B8 and C16. A weed identification sensor 15 is installed on the lower inner side of the single frame 1 through a bracket 14.

[0017] The actuator assembly 17 includes a hollow shaft stepper motor 17-3. An infusion tube 17-1 is connected and installed on the upper end of the hollow shaft stepper motor 17-3 via a mounting bracket 17-2. A hanging shaft 17-19 is suspended and fixed on the lower end of the motor shaft 17-22 of the hollow shaft stepper motor 17-3 via a coupling 17-4. A fixing sleeve 17-16 is rotatably fitted onto the lower end of the hanging shaft 17-19. An atomizing nozzle 17-10, a seepage cylinder 17-14, and a cylindrical sun gear 17-11 are sequentially fixed on the lower end of the fixing sleeve 17-16 from the center outwards. An elongated through hole 17-11-1 is intermittently formed along the axial direction on the cylindrical wall at the root of the teeth of the cylindrical sun gear 17-11. The seepage cylinder 17-14 is connected to the cylindrical sun gear 17-11 outside the cylindrical sun gear 17-11. A fixed sponge body 17-13 is squeezed and inserted into the inner part of the gear 17-11. The sponge axial bosses 17-13-1 on the outer circumference of the sponge body 17-13 are intermittently inserted into the elongated through holes 17-11-1 on the cylindrical sun gear 17-11, with the outer ends of the sponge axial bosses 17-13-1 exposed outside the elongated through holes 17-11-1. A crank arm 17-18 is fixedly installed on the hanging shaft 17-19 above the fixed sleeve 17-16. The gear shaft 17-15 is fixedly installed on the lower end of the crank arm 17-18. A cylindrical planetary gear 17-12 is rotatably installed on the outside of the gear shaft 17-15. The cylindrical planetary gear 17-12 and the cylindrical sun gear 17-11 are normally... The gears of the cylindrical planetary gear 17-12 mesh with each other, and the tooth tips of the cylindrical planetary gear 17-12 are in a continuous intermittent compression fit with the axial boss 17-13-1 exposed outside the elongated through hole 17-11-1. A positioning bracket 17-21 is fixedly installed on the lower end of the hollow shaft stepper motor 17-3, located on the outer part of the coupling 17-4. A sun pulley 17-20 is fixedly installed on the lower end of the positioning bracket 17-21. The hanging shaft 17-19 is rotatably inserted into the center hole of the upper sun pulley 17-20. A lower sun pulley 17-17 is fixedly installed on the upper end of the fixing sleeve 17-16. The hanging shaft 17-19 is rotatably inserted into the center hole of the lower sun pulley 17-17. A planetary gear is vertically rotatably inserted into the side of the crank arm 17-18. Shaft 17-7, with upper planetary pulley 17-6 and lower planetary pulley 17-8 respectively installed on the upper and lower ends of planetary gear shaft 17-7. Annular upper belt 17-5 and annular lower belt 17-9 are respectively fitted onto upper sun pulley 17-20 and upper planetary pulley 17-6, and lower sun pulley 17-17 and lower planetary pulley 17-8. The transmission ratio between upper sun pulley 17-20 and lower sun pulley 17-17 is 1:1. Fixed sleeve 17-16 is sequentially connected to positioning frame 17-21 in a circumferential positioning manner via lower sun pulley 17-17, annular lower belt 17-9, lower planetary pulley 17-8, planetary gear shaft 17-7, upper planetary pulley 17-6, annular upper belt 17-5, and upper sun pulley 17-20.The wiring connects the automatic controller assembly 11 to the weed detection sensor 15, the delta parallel robotic arm 13, the solenoid valve 12, the pesticide pump 10, and the hollow shaft stepper motor 17-3, respectively.

[0018] During operation, the weeding unit is mounted on the weeding implement and moves longitudinally along the seedbed. The actuator assembly 17 is positioned above the rows of crops in the field. The weed detection sensor 15 identifies and detects the location of weeds and transmits an electrical signal to the automatic controller assembly 11. After reading and processing, the automatic controller assembly 11 controls the movement of the delta parallel robotic arm 13 to precisely position the actuator assembly 17 and cover the target weeds. Then, the hollow shaft stepper motor 17-3 of the actuator assembly 17 starts simultaneously and rotates. The hollow shaft stepper motor 17-3 drives the cylindrical planetary gear 17-12 to revolve around the cylindrical sun gear 17-11 via the motor shaft 17-22, coupling 17-4, suspension shaft 17-19, crank arm 17-18, and gear shaft 17-15. Under the action of the meshing cylindrical sun gear 17-11, the cylindrical planetary gear 17-12 achieves rotational motion while revolving. During the meshing process, the weed stems and leaves that enter the space are mechanically squeezed and crushed, causing damage. Simultaneously, the ends of the teeth of the cylindrical planetary gear 17-12 periodically squeeze the axial protrusion 17-13-1 of the sponge body 17-13 exposed at the root of the teeth of the cylindrical sun gear 17-11. This causes the pesticide solution in the pesticide tank 2 to be pumped sequentially through the hard pipe B9 by the pesticide pump 10 started by the automatic control assembly 11, via the hard pipe A6, the towerless liquid dispenser 3, the hose A7, and the electromagnetic... Valve 12, hose B8, hose C16, infusion tube 17-1, and atomizing nozzle 17-10 are fed into the seepage cylinder 17-14. The medicine is fully absorbed in the sponge body 17-13 and the sponge axial boss 17-13-1. The medicine is squeezed out from the sponge axial boss 17-13-1 by the teeth of the cylindrical planetary gear 17-12 and then directly applied to the damaged parts of the weed stems and leaves, completing the synergistic operation of physical destruction of weeds and direct application to promote the absorption of medicine.

[0019] During operation, the fixed positioning frame 17-21, mounted on the lower end of the hollow shaft stepper motor 17-3, is controlled by the upper sun pulley 17-20, the upper annular belt 17-5, the upper planetary pulley 17-6, the planetary gear shaft 17-7, the lower planetary pulley 17-8, the lower annular belt 17-9, and the lower sun pulley 17-17. As the crank arm 17-18 rotates circumferentially, it drives the planetary gear shaft 17-7 and the upper and lower planetary pulleys 17-6 and 17-8 to revolve around the hanging shaft 17-19. Meanwhile, the fixed sleeve 17-16 keeps the cylindrical sun gear 17-11 stationary, ensuring that the cylindrical planetary gear 17-12 rotates simultaneously with its revolution, making its meshing with the cylindrical sun gear 17-11 more stable and reliable. This improves the quality and effectiveness of rubbing weed stems and leaves and applying herbicide, preventing and eliminating blockages.

Claims

1. A single herbicide for combined herbicide application via mechanical squeezing and rubbing of stems and leaves and liquid application, characterized in that... A disinfectant liquid tank (2), a towerless liquid dispenser (3), an automatic control assembly (11), and a solenoid valve (12) are sequentially fixed on the upper end of a single frame (1). A liquid pump (10) is fixed on the automatic control assembly (11). A hydraulic gauge (4) and a safety valve (5) are installed on the towerless liquid dispenser (3). The inlet of the liquid pump (10) is connected to the outlet of the disinfectant liquid tank (2) through a rigid pipe B (9), and the outlet of the liquid pump (10) is connected to the inlet of the towerless liquid dispenser (3) through a rigid pipe A (6). The towerless liquid dispenser... The outlet of the device (3) is connected to the inlet of the solenoid valve (12) through the hose A (7). The delta parallel robotic arm (13) is installed on the lower middle part of the single frame (1). The actuator assembly (17) is fixed on the lower end of the delta parallel robotic arm (13). The outlet of the solenoid valve (12) is connected to the actuator assembly (17) through the hoses B (8) and C (16) connected in sequence. The weed identification sensor (15) is installed on the lower inner side of the single frame (1) through the bracket (14). The actuator assembly (17) includes a hollow shaft stepper motor (17-3). An infusion tube (17-1) is connected and installed on the upper end of the hollow shaft stepper motor (17-3) via a bracket (17-2). A fixed hanging shaft (17-19) is suspended and mounted on the lower end of the motor shaft (17-22) of the hollow shaft stepper motor (17-3) via a coupling (17-4). A fixed sleeve (17-16) is rotatably fitted onto the lower end of the hanging shaft (17-19). On the upper part of the fixed sleeve (17-16), the atomizing nozzle (17-10), the seepage cylinder (17-14), and the cylindrical sun gear (17-11) are fixedly installed sequentially from the center outwards. Long strip through holes (17-11-1) are intermittently opened along the axial direction on the cylinder wall at the root of the teeth of the cylindrical sun gear (17-11). A fixed sponge (17-13) is squeezed and inserted between the outside of the seepage cylinder (17-14) and the inside of the cylindrical sun gear (17-11). The sponge axial bosses (17-13-1) on the outer circumference of the sponge body (17-13) are intermittently inserted into the elongated through holes (17-11-1) on the cylindrical sun gear (17-11), with the outer ends of the sponge axial bosses (17-13-1) exposed outside the elongated through holes (17-11-1). A crank arm (17-18) is fixedly mounted on the hanging shaft (17-19) above the fixing sleeve (17-16). The axle (17-15) is fixedly mounted on the lower end of the crank arm (17-18). A cylindrical planetary gear (17-12) is rotatably mounted on the outside of the gear shaft (17-15). The cylindrical planetary gear (17-12) is constantly meshed with the cylindrical sun gear (17-11), and the tooth tip of the cylindrical planetary gear (17-12) is in continuous intermittent compression fit with the sponge axial boss (17-13-1) exposed outside the elongated through hole (17-11-1).A positioning bracket (17-21) is fixedly installed on the lower end of the hollow shaft stepper motor (17-3), located outside the coupling (17-4). A sun pulley (17-20) is fixedly mounted on the lower end of the positioning bracket (17-21). The hanging shaft (17-19) is rotatably inserted into the center hole of the upper sun pulley (17-20). A lower sun pulley (17-17) is fixedly mounted on the upper end of the fixing sleeve (17-16). The hanging shaft (17-19) is rotatably inserted into the center hole of the lower sun pulley (17-17). A planetary gear shaft (17-7) is vertically rotatably inserted into the side of the crank arm (17-18). An upper planetary pulley (17-6) and a lower planetary pulley (17-8) are respectively installed on the upper and lower ends of the planetary gear shaft (17-7). An annular upper belt (17-5) and an annular lower belt (17-9) are also installed. The upper sun pulley (17-20) and the upper planetary pulley (17-6), and the lower sun pulley (17-17) and the lower planetary pulley (17-8) are respectively mounted on the upper sun pulley (17-20) and the upper planetary pulley (17-17). The transmission ratio between the upper sun pulley (17-20) and the lower sun pulley (17-17) is 1:

1. The fixed sleeve (17-16) is sequentially connected to the positioning frame (17-21) through the lower sun pulley (17-17), the annular lower belt (17-9), the lower planetary pulley (17-8), the planetary gear shaft (17-7), the upper planetary pulley (17-6), the annular upper belt (17-5), the upper sun pulley (17-20), and the positioning frame (17-21) in a circumferential positioning manner. The wires connect the automatic controller assembly (11) to the weed identification sensor (15), the delta parallel robotic arm (13), the solenoid valve (12), the liquid pump (10), and the hollow shaft stepper motor (17-3).

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