Hydraulic drive type machine-chemical cooperation intelligent paddy field cultivation and weeding unit

Abstract

This hydraulically driven, intelligent paddy field weeding and cultivation unit is an agricultural machine. The unit is equipped with a pressure-fluid source system consisting of a herbicide liquid tank, a pump assembly, a towerless liquid supply unit, a hydraulic sensor, a safety valve, and a hydraulic solenoid valve; a mechanical weeding and cultivation system consisting of flexible hoses, fixed pipe clamps, rigid pipes, a cylindrical shaft, a sleeve, fixed blades, moving blades, a barrel-type nozzle, and spiral blades; a positioning and adjustment mechanism consisting of a micro-screw linear module, a Π-shaped frame, a transverse track, a slider, a motor, cylindrical gears, a base plate, and a rack; a weed identification and positioning system consisting of a weed identification sensor; and an automatic control box assembly. This unit achieves an intelligent combination of hydraulically driven shearing and pulverizing mechanical weeding and chemical weeding through liquid flow delivery. It features a novel, unique, and reasonable structure, excellent weed control effect, low pesticide residue on crops, and minimal environmental pollution.

Description

Technical Field

[0001] This invention relates to agricultural machinery, specifically a single unit for tillage and weeding operations suitable for use in paddy fields. Background Technology

[0002] Mechanical weeding, a traditional method of weed control in paddy fields, is widely used due to its advantages such as no environmental pollution and improved rice quality. However, most current mainstream paddy field weeding machinery uses methods that pull weeds out of the soil, causing them to float on the water surface or be buried in the paddy field mud. This method fails to completely eradicate some resilient weeds, resulting in poor weed control quality. Furthermore, due to design flaws, most paddy field mechanical weeding equipment inevitably causes root and seedling damage. In addition, chemical weeding is widely used due to its high efficiency and ease of operation; however, the excessive use of chemical herbicides can cause environmental pollution and should be used in moderation. Therefore, developing a single operational unit that combines the scientifically reasonable dosage of liquid herbicides with a new mechanical weeding method can improve the quality of weeding operations, reduce the amount of chemical herbicides used, and provide technical support for green rice production in my country. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of current paddy field weeding operations, to develop and design a hydraulically driven, machine-pesticide collaborative intelligent paddy field weeding unit, which achieves high-quality weeding, high weed mortality, low environmental pollution, low pesticide residues in crops, and no damage to rice seedlings and roots.

[0004] The purpose of this invention is achieved as follows: A herbicide liquid tank, a pump assembly, a towerless liquid dispenser, a hydraulic solenoid valve, and an automatic control box assembly are sequentially installed on the upper part of a single frame. A hydraulic sensor and a safety valve are installed on the outer top of the towerless liquid dispenser and are interconnected with its inner cavity. A weed detector is mounted on the upper end of the hydraulic solenoid valve. Both ends of liquid pipe A are connected to the outlet of the herbicide liquid tank and the inlet of the pump assembly, respectively. Both ends of liquid pipe B are connected to the outlet of the pump assembly and the inlet of the towerless liquid dispenser, respectively. The two ends of C are respectively connected to the outlet of the towerless liquid supply device and the inlet of the hydraulic solenoid valve; a base plate and a transverse track are fixed perpendicularly to each other on the lower end of the single frame; a rack is fixed on the base plate; a Π-shaped frame is installed on the single frame, above the transverse track, with a laterally movable cover; a slider is fixed on the inner wall of the rear side wall of the Π-shaped frame, and the slider is in a laterally movable snap-fit ​​engagement with the transverse track; the miniature lead screw linear module is fixed on the outer wall of the front side wall of the Π-shaped frame; and a motor is fixed on the outer wall of the rear side wall of the Π-shaped frame. A cylindrical gear is fixedly mounted on the motor shaft, and the cylindrical gear meshes with a rack; a rigid tube is vertically fixed to the miniature lead screw linear module via a fixed tube clamp, and the upper and lower ends of the elastic hose are respectively sealed and fixed to the outlet of the hydraulic solenoid valve and the upper end of the rigid tube; a fixed sleeve is coaxially mounted on the lower end of the rigid tube, and a fixed blade is fixed on the outside of the sleeve. The blade is radially and axially positioned and circumferentially rotatable on a cylindrical shaft within the coaxial inner cavity of the rigid tube and the sleeve, and the lower end of the cylindrical shaft is located outside the lower end of the sleeve. A fixed barrel-type nozzle is mounted on the outer wall of the nozzle, with a moving blade and a spiral blade fixedly mounted from top to bottom. The moving blade is located below the fixed blade and they are in shearing engagement with each other. A tangential through hole is opened on the bottom side wall of the barrel-type nozzle along the tangential direction, and the tangential through hole is inclined upward from the inside to the outside. The wires connect the automatic control box assembly to the liquid pump assembly, hydraulic sensor, hydraulic solenoid valve, micro lead screw linear module, motor and weed recognition sensor, thus forming a hydraulically driven intelligent paddy field weeding unit that combines mechanical and pesticide cooperation.

[0005] This invention combines mechanical weeding and chemical weeding techniques in paddy fields with chemical weeding using herbicides into a single working unit. It employs a weed detection sensor to accurately detect and remove weeds at specific locations, while simultaneously utilizing the flow of chemical herbicide liquid to drive the rotation of the mechanical weeding and cultivating components to complete the mechanical weeding and cultivating process. This achieves an intelligent combination of hydraulically driven shearing and pulverizing mechanical weeding and chemical weeding using liquid flow delivery. It features a novel, unique, and reasonable structure, high efficiency in weeding and cultivating, high weed mortality rate, herbicide conservation, efficient herbicide utilization, low pesticide residues in crops, minimal environmental pollution, and no damage to seedlings or root systems. Attached Figure Description

[0006] Figure 1This is a schematic diagram of the overall structure of a hydraulically driven, machine-pesticide collaborative intelligent paddy field weeding unit.

[0007] Figure 2 yes Figure 1 The right view;

[0008] Figure 3 yes Figure 1 Enlarged view of part A in the image;

[0009] Figure 4 yes Figure 3 Sectional view along line B-B in the middle;

[0010] Figure 5 This is a schematic diagram of the assembly structure of the Π-shaped frame, motor, transverse slider, transverse track, base plate, rack, and cylindrical gear;

[0011] Figure 6 This is a three-dimensional schematic diagram of the overall structure of a hydraulically driven, collaborative, intelligent paddy field weeding and cultivation unit.

[0012] Part number description in the image:

[0013] 1. Herbicide liquid tank; 2. Liquid pipe A; 3. Liquid pump assembly; 4. Liquid pipe B; 5. Towerless liquid dispenser; 6. Hydraulic sensor; 7. Safety valve; 8. Weed identification sensor; 9. Liquid pipe C; 10. Hydraulic solenoid valve; 11. Automatic control box assembly; 12. Individual frame; 13. Π-shaped frame; 14. Transverse track; 15. Motor; 16. Slider; 17. Cylindrical gear; 18. Rack; 19. Seat plate; 20. Rigid tube; 21. Fixed tube clamp; 22. Miniature lead screw linear module; 23. Flexible hose; 24. Cylindrical shaft; 25. Sleeve; 26. Fixed blade; 27. Moving blade; 28. Barrel nozzle; 29. ​​Tangential through hole; 30. Spiral blade. Detailed Implementation

[0014] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A hydraulically driven, intelligent, integrated weed control unit for paddy field cultivation includes a towerless liquid dispenser 5, a weed detection sensor 8, and a miniature lead screw linear module 22. On the upper part of the unit frame 12, a herbicide liquid tank 1, a pump assembly 3, the towerless liquid dispenser 5, a hydraulic solenoid valve 10, and an automatic control box assembly 11 are sequentially installed. A hydraulic sensor 6 and a safety valve 7 are installed on the outer top of the towerless liquid dispenser 5 and are interconnected with the inner cavity of the towerless liquid dispenser 5. A weed detector 8 is mounted on the upper end of the hydraulic solenoid valve 10. The two ends of the liquid pipe A2 are connected to the outlet of the herbicide liquid tank 1 and the inlet of the pump assembly 3, respectively. The two ends of the liquid pipe B4 are connected to the pump... The liquid outlet of assembly 3 is connected to the liquid inlet of the towerless liquid feeder 5. The two ends of liquid pipe C9 are respectively connected to the liquid outlet of the towerless liquid feeder 5 and the liquid inlet of the hydraulic solenoid valve 10. A base plate 19 and a transverse track 14 are fixedly mounted perpendicularly to each other on the lower end of the unit frame 12. A rack 18 is fixedly mounted on the base plate 19. A Π-shaped frame 13 is mounted on the unit frame 12, above the transverse track 14, and can be moved laterally. A slider 16 is fixedly mounted on the inner wall of the rear side wall of the Π-shaped frame 13. The slider 16 and the transverse track 14 are engaged in a transversely movable snap-fit. The micro lead screw linear module 22 is fixedly mounted on the outer wall of the front side wall of the Π-shaped frame 13. On the upper part of the Π-shaped frame 13, a motor 15 is fixedly mounted on the outer wall of the rear side wall. A cylindrical gear 17 is fixedly mounted on the motor shaft of the motor 15, and the cylindrical gear 17 meshes with a rack 18. A rigid tube 20 is vertically fixed on the micro lead screw linear module 22 through a tube clamp 21. The upper and lower ends of the elastic hose 23 are respectively sealed and fixedly connected to the outlet of the hydraulic solenoid valve 10 and the upper end of the rigid tube 20. A sleeve 25 is coaxially fixed on the lower end of the rigid tube 20. A fixed blade 26 is fixed on the outside of the sleeve 25. The rigid tube 20 and the sleeve 25 are radially and axially positioned and circumferentially rotatably mounted on a cylindrical shaft 24 in the coaxial inner cavity of the rigid tube 20 and the sleeve 25. The lower end of the cylindrical shaft 24 is located outside the lower end of the sleeve 25. A barrel-shaped nozzle 28 is fixedly mounted on the lower end of the cylindrical shaft 24. Moving blades 27 and spiral blades 30 are fixedly mounted on the outer wall of the barrel-shaped nozzle 28 from top to bottom. The moving blades 27 are located below the fixed blades 26 and are in shearing fit with each other. A tangential through hole 29 is opened on the bottom side wall of the barrel-shaped nozzle 28 along the tangential direction, and the tangential through hole 29 is inclined upward from the inside to the outside. The wires connect the automatic control box assembly 11 to the liquid pump assembly 3, the hydraulic sensor 6, the hydraulic solenoid valve 10, the micro lead screw linear module 22, the motor 15, and the weed recognition sensor 8.

[0015] During operation, the herbicide unit is mounted on the paddy field weeding implement and moves forward randomly. The barrel nozzle 28 is placed above the rice seedlings. The automatic control box assembly 11 starts the pump assembly 3, hydraulic sensor 6, hydraulic solenoid valve 10, micro screw linear module 22, motor 15, and weed detection sensor 8 to enter the working state. According to the needs of weeding operations, the micro screw linear module 22, through the fixed pipe clamp 21 and rigid pipe 20, inserts the barrel nozzle 28 into the paddy field soil layer. At this time, the pump assembly 3 sends the herbicide liquid in the herbicide liquid tank 1 into the towerless liquid dispenser 5 through the liquid pipe A2 and liquid pipe B4. The pressurized herbicide liquid is then sequentially fed through the liquid... Pipe C9, hydraulic solenoid valve 10, flexible hose 23, rigid pipe 20, and cylindrical shaft 24 enter the barrel cavity of barrel nozzle 28 and are sprayed out through tangential through-hole 29. Under the reaction force of the liquid spray pressure, barrel nozzle 28 drives moving blade 27 to rotate in a circle. During the forward movement of the nozzle, it cooperates with the shearing of fixed blade 26 to complete the mechanical cutting and crushing of paddy field weeds. At the same time, spiral blade 30 digs the weeds out of the paddy field mud layer and outputs them upward, so that the weed roots are separated from the soil. Based on the upwardly inclined tangential through-hole 29, the sprayed herbicide liquid flows upward, which in turn pushes the crushed weeds onto the surface of paddy field soil and water layer, greatly improving the weed mortality rate. At the same time, the herbicide liquid is sprayed into the paddy field soil to carry out and complete the herbicide weeding operation. During the weeding and hoeing operation of this single unit, the weed identification sensor 8 identifies the weeds and inputs their location to the automatic control box assembly 11. The automatic control box assembly 11, via the starter motor 16, rotates the cylindrical gear 17, rack 18, Π-shaped frame 13, micro-screw linear module 22, fixed pipe clamp 21, rigid pipe 20, and cylindrical shaft 24, driving the barrel-type nozzle 28, moving blade 27, and fixed blade 26 to move laterally left or right to the weed location on the unit frame 12, completing the intelligent positioning and weeding operation. The hydraulic sensor 6 monitors the pressure inside the towerless liquid dispenser 5 and automatically adjusts the operation of the liquid pump assembly 3 through the automatic control box assembly 11. The safety valve 7 effectively ensures the safe operation of the towerless liquid dispenser 5. The hydraulic solenoid valve 10 automatically controls whether the herbicide liquid, after pressure increase, enters the elastic hose 23 through the automatic control box assembly 11.

Claims

1. A hydraulic drive type machine and herbicide cooperation intelligent paddy field cultivation and weeding unit, comprising a tower-free liquid supply device (5), a weed identification sensor (8) and a micro lead screw linear module (22), characterized in that: On the upper part of the single frame (12), the herbicide liquid tank (1), the pump assembly (3), the towerless liquid dispenser (5), the hydraulic solenoid valve (10), and the automatic control box assembly (11) are installed in sequence. The hydraulic sensor (6) and the safety valve (7) are installed on the outside of the top of the towerless liquid dispenser (5) and are interconnected with the inner cavity of the towerless liquid dispenser (5). The weed identification sensor (8) is installed on the upper end of the hydraulic solenoid valve (10). The two ends of the liquid pipe A (2) are connected to the outlet of the herbicide liquid tank (1) and the inlet of the pump assembly (3) respectively. The two ends of the liquid pipe B (4) are connected to the outlet of the pump assembly (3) and the inlet of the towerless liquid dispenser (5) respectively. The two ends of the liquid pipe C (9) are connected to the towerless liquid dispenser (5) respectively. The liquid outlet of the liquid feeder (5) and the liquid inlet of the hydraulic solenoid valve (10) are respectively fixed on the lower end of the unit frame (12) in a perpendicular manner. The rack (18) is fixed on the base plate (19). A Π-shaped frame (13) is installed on the unit frame (12) above the transverse track (14) and can be moved laterally. A slider (16) is fixed on the inner wall of the rear side wall of the Π-shaped frame (13). The slider (16) is engaged with the transverse track (14) in a laterally movable snap-fit ​​manner. The micro lead screw linear module (22) is fixed on the outer wall of the front side wall of the Π-shaped frame (13). A motor (15) is fixed on the outer wall of the rear side wall of the Π-shaped frame (13). A cylindrical gear (17) is fixed on the motor shaft of the motor (15), and the cylindrical gear (17) meshes with the rack (18); a rigid tube (20) is vertically fixed on the micro screw linear module (22) by a tube clamp (21), and the upper and lower ends of the elastic hose (23) are respectively sealed and fixed to the outlet of the hydraulic solenoid valve (10) and the upper end of the rigid tube (20); a fixed sleeve (25) is coaxially mounted on the lower end of the rigid tube (20), and a fixed blade (26) is fixed on the outside of the sleeve (25). The rigid tube (20) and the sleeve (25) are radially and axially positioned and circumferentially rotatably mounted on the cylindrical shaft (24) in the inner cavity coaxial with the sleeve (25), and the lower end of the cylindrical shaft (24) is located on the sleeve. (25) At the lower end of the outer side, a barrel-type nozzle (28) is fixedly mounted on the lower end of the barrel shaft (24). Moving blades (27) and spiral blades (30) are fixedly mounted on the outer wall of the barrel-type nozzle (28) from top to bottom. The moving blades (27) are located below the fixed blades (26) and are in shear fit with each other. A tangential through hole (29) is opened on the bottom side wall of the barrel-type nozzle (28) along the tangential direction. The tangential through hole (29) is inclined upward from the inside to the outside. The wires connect the automatic control box assembly (11) to the liquid pump assembly (3), the hydraulic sensor (6), the hydraulic solenoid valve (10), the micro lead screw linear module (22), the motor (15), and the weed identification sensor (8).

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