Double-row disc harrow and use method

Abstract

The invention discloses a double-row disc harrow and a using method, and relates to the technical field of black land conservation farming, the double-row disc harrow comprises a first disc harrow, a second disc harrow, a distance adjusting mechanism, an image recognition mechanism and an intelligent controller, a second rotating shaft and a first rotating shaft are arranged in parallel, and second disc harrow pieces and first disc harrow pieces are sequentially arranged in a staggered mode; the moving end of the distance adjusting mechanism horizontally moves to drive the second frame body to be close to or away from the first frame body so as to adjust the distance between the first rotating shaft and the second rotating shaft. The image recognition mechanism is mounted at the top of the first frame body so as to recognize the straw coverage amount of the first frame body close to the field surface on one side of the tractor; the intelligent controller is in signal connection with the second power transmission mechanism, the distance adjusting mechanism and the image recognition mechanism. The straw cutting size is effectively reduced, the straw smashing effect is effectively enhanced, and the straw humus efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of black soil conservation tillage, and in particular to a double-row disc harrow and a use method thereof. Background Art

[0002] Food security is an important strategic foundation for national development. As the main grain-producing area, black soil in my country is of vital importance. Returning straw to the field is one of the main conservation tillage methods for black soil. However, there are many problems with existing straw returning devices. The existing devices cannot effectively control the size of the crushed straw during operation, resulting in a large amount of straw gathering and piling up inside the soil. When the straw is buried during farming the following year, it is easy to be turned back to the surface of the field, and the expected purpose of returning straw to the field cannot be achieved. This makes farmers often use surface burning or straw baling to deal with straw, which cannot achieve the goal of fertilizing the land, improving quality and efficiency, and conservation tillage of black soil through humus straw. Therefore, the agricultural field urgently needs a device that can intelligently and steplessly adjust the speed difference and spacing between the disc harrow blades, reduce the size of straw crushing, and increase the humus rate of straw. Summary of the Invention

[0003] The purpose of the present invention is to provide a double-row disc harrow and a method of use to solve the problems existing in the above-mentioned prior art, effectively reduce the cutting size of straw, effectively enhance the straw crushing effect, and effectively improve the straw decomposition efficiency.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a double-row disc harrow, comprising: a first disc harrow, a second disc harrow, a spacing adjustment mechanism, an image recognition mechanism and an intelligent controller, wherein the first disc harrow comprises a first frame, a first rotating shaft, a plurality of first disc harrow blades and a first power transmission mechanism, the first rotating shaft is rotatably connected to the first frame, a plurality of first disc harrow blades are sleeved and fixed on the first rotating shaft, one end of the first power transmission mechanism is transmission-connected to the output shaft of the tractor, and the other end is transmission-connected to the first rotating shaft to drive the first rotating shaft to rotate; the second disc harrow comprises a second frame, a second rotating shaft, a plurality of second disc harrow blades and a second power transmission mechanism, the second frame is located on a side of the first frame away from the tractor, the second rotating shaft is rotationally connected to the second frame, and the second rotating shaft is arranged parallel to the first rotating shaft, a plurality of second disc harrow blades are sleeved and fixed The tractor is fixed on the second rotating shaft, and the second disc harrow blades are arranged alternately with the first disc harrow blades in sequence. One end of the second power transmission mechanism is connected to the hydraulic output device of the tractor, and the other end is connected to the second rotating shaft to drive the second rotating shaft to rotate; the fixed end of the spacing adjustment mechanism is fixedly connected to the first frame, and the movable end of the spacing adjustment mechanism is fixedly connected to the second frame. The horizontal movement of the movable end of the spacing adjustment mechanism can drive the second frame to move closer to or away from the first frame to adjust the distance between the first rotating shaft and the second rotating shaft; the image recognition mechanism is installed on the top of the first frame to be able to identify the amount of straw covering the field surface of the first frame close to the tractor side; the intelligent controller is signal-connected to the second power transmission mechanism, the spacing adjustment mechanism and the image recognition mechanism.

[0006] Preferably, the second power transmission mechanism includes a hydraulic motor, a first solenoid valve and a speed difference adjustment mechanism, the oil inlet of the hydraulic motor is connected to the oil outlet of the hydraulic output device of the tractor, the oil outlet of the hydraulic motor is connected to the oil return port of the hydraulic output device of the tractor, the first solenoid valve is arranged on a pipeline connecting the oil inlet of the hydraulic motor and the oil outlet of the hydraulic output device of the tractor, the first solenoid valve is connected to the intelligent controller signal, the hydraulic motor is connected to the second rotating shaft through the speed difference adjustment mechanism to realize stepless driving of the second rotating shaft, and the speed difference adjustment mechanism can adjust the rotation direction of the second rotating shaft.

[0007] Preferably, the speed difference adjustment mechanism includes a coupling and a reduction gear box, one end of the coupling is transmission-connected to the output shaft of the hydraulic motor, and the other end is transmission-connected to the reduction gear box, and the end of the reduction gear box away from the coupling is transmission-connected to the second rotating shaft.

[0008] Preferably, the spacing adjustment mechanism includes multiple hydraulic cylinders, a second solenoid valve and multiple telescopic support and guide mechanisms, each of the hydraulic cylinders is evenly arranged between the first frame and the second frame, the cylinder barrel of the hydraulic cylinder is fixedly connected to the top of the first frame, the piston rod of the hydraulic cylinder is fixedly connected to the top of the second frame, the oil inlet of the hydraulic cylinder is connected to the oil outlet of the hydraulic output device of the tractor, the oil outlet of the hydraulic cylinder is connected to the oil return port of the hydraulic output device of the tractor, the second solenoid valve is arranged on a main pipeline connecting the oil outlet of the hydraulic output device of the tractor and the oil inlet of each hydraulic cylinder, multiple telescopic support and guide mechanisms are evenly arranged between the first frame and the second frame, and the two ends of the telescopic support and guide mechanism are respectively fixedly connected to the first frame and the second frame to support and guide the movement of the second frame.

[0009] Preferably, the telescopic support guide mechanism includes a first support guide tube and a second support guide tube, one end of the first support guide tube is fixedly connected to the first frame, one end of the second support guide tube is fixedly connected to the second frame, and the other end is slidably sleeved in the first support guide tube to support and guide the movement of the second frame.

[0010] Preferably, the image recognition mechanism includes a multispectral camera and a lifting rod, the fixed end of the lifting rod is fixedly connected to the top of the first frame, the multispectral camera is fixedly connected to the lifting end of the lifting rod to complete height adjustment under the drive of the lifting rod, and the multispectral camera and the lifting rod are signal-connected to the intelligent controller.

[0011] Preferably, it also includes a speed sensor, a torque sensor and a laser sensor, the speed sensor and the torque sensor are arranged on the coupling to identify the speed and output torque of the coupling, the laser sensor is arranged on the second frame to measure the wheelbase between the first rotating shaft and the second rotating shaft, and the speed sensor, the torque sensor and the laser sensor are all connected to the intelligent controller signal.

[0012] Preferably, it also includes a leveling roller and a third frame, wherein the third frame is installed on the side of the second frame away from the first frame, and the leveling roller is rotatably connected to the third frame to level the field surface broken by the first disc harrow and the second disc harrow.

[0013] Preferably, the outer surfaces of the first disc harrow blade, the second disc harrow blade and the soil leveling roller are all in a non-smooth form with bionic adhesion reduction and desorption.

[0014] The present invention provides a method for using a double-row disc harrow as described in any one of the above items, characterized in that it comprises the following steps:

[0015] The tractor drives the first rotating shaft to rotate through the first power transmission mechanism, and drives the second rotating shaft to rotate through the second power transmission mechanism;

[0016] The image recognition mechanism identifies the amount of straw coverage on the field surface on the side of the first frame close to the tractor during the movement of the tractor, and transmits the information to the intelligent controller in real time;

[0017] The intelligent controller controls the spacing adjustment mechanism to move the second frame closer to or away from the first frame based on the received straw coverage information, and adjusts the spacing between the first and second rotating shafts to an appropriate distance; and controls the second power transmission mechanism to adjust the second rotating shaft to an appropriate speed and rotation direction.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The present invention provides a dual-row disc harrow and its use method. The parallel and staggered layout of the second disc harrow and the first disc harrow increases harrow coverage, reduces missed harrows, and improves overall harrowing efficiency. Furthermore, this layout and independent power connection enable the second disc harrow to better adapt to varying harrowing requirements, providing a more comprehensive harrowing operation. Through an adjustable spacing mechanism, the dual-row disc harrow can flexibly adjust the spacing between the first and second rotating shafts to suit different planting row spacings or field operation requirements. Proper spacing allows for more accurate, human-like cutting motions, resulting in more effective straw cutting and comminution. This further reduces the size of the cut straw, enhances the comminution effect, and improves straw composting efficiency. An image recognition mechanism acquires real-time information on the amount of straw cover on the field surface. Based on this information, an intelligent controller precisely controls the second power transmission mechanism and spacing adjustment mechanism, enabling the dual-row disc harrow to adjust operating parameters according to actual conditions, improving operational quality and efficiency and achieving intelligent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of a double-row disc harrow provided by the present invention;

[0022] Figure 2 for Figure 1 A partial cross-sectional view of

[0023] Figure 3This is a schematic diagram of the structure of the double-row disc harrow provided by the present invention when in use;

[0024] Figure 4 A schematic structural diagram of the second disc harrow blade in the double-row disc harrow provided by the present invention;

[0025] In the figure: 1. spline connecting shaft; 2. multispectral camera; 3. lifting rod; 4. intelligent controller; 5. first frame; 6. second solenoid valve; 7. hydraulic cylinder; 8. first support guide tube; 9. second support guide tube; 10. reduction gearbox; 11. second disc harrow; 12. speed sensor; 13. torque sensor; 14. second frame; 15. leveling roller; 16. hydraulic motor; 17. coupling; 18. laser sensor; 19. first rotating shaft; 20. second rotating shaft; 21. tractor; 22. concave-convex unit. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The purpose of the present invention is to provide a double-row disc harrow and a method of use to solve the problems existing in the above-mentioned prior art, effectively reduce the cutting size of straw, effectively enhance the straw crushing effect, and effectively improve the straw decomposition efficiency.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] The present invention provides a double-row disc harrow, such as Figures 1 to 3As shown, it includes: a first disc harrow, a second disc harrow, a spacing adjustment mechanism, an image recognition mechanism and an intelligent controller 4, the first disc harrow includes a first frame 5, a first rotating shaft 19, a plurality of first disc harrow blades and a first power transmission mechanism, the first rotating shaft 19 is rotatably connected to the first frame 5, and the plurality of first disc harrow blades are sleeved and fixed on the first rotating shaft 19, one end of the first power transmission mechanism is transmission-connected to the output shaft of the tractor 21, and the other end is transmission-connected to the first rotating shaft 19 to drive the first rotating shaft 19 to rotate; the second disc harrow includes a second frame 14, a second rotating shaft 20, a plurality of second disc harrow blades 11 and a second power transmission mechanism, the second frame 14 is located on the side of the first frame 5 away from the tractor 21, the second rotating shaft 20 is rotationally connected to the second frame 14, and the second rotating shaft 20 is arranged parallel to the first rotating shaft 19, and the plurality of second disc harrow blades 11 are rotationally connected to the second frame 14. The disc harrow blades 11 are mounted and fixed on the second rotating shaft 20, and the second disc harrow blades 11 are arranged alternately with the first disc harrow blades. One end of the second power transmission mechanism is connected to the hydraulic output device of the tractor 21, and the other end is in transmission connection with the second rotating shaft 20 to drive the second rotating shaft 20 to rotate. The fixed end of the spacing adjustment mechanism is fixedly connected to the first frame 5, and the movable end of the spacing adjustment mechanism is fixedly connected to the second rotating shaft 20. The movable end of the spacing adjustment mechanism can move the second frame 14 toward or away from the first frame 5 to adjust the spacing between the first rotating shaft 19 and the second rotating shaft 20. An image recognition mechanism is mounted on the top of the first frame 5 to identify the amount of straw cover on the field surface on the side of the first frame 5 closest to the tractor 21. The intelligent controller 4 is signal-connected to the second power transmission mechanism, the spacing adjustment mechanism, and the image recognition mechanism. The parallel and staggered arrangement of the second disc harrow and the first disc harrow increases the coverage rate of the harrow, reduces the occurrence of missed harrows, and improves the overall harrowing effect. At the same time, this layout and independent power connection method enable the second disc harrow to better adapt to different harrowing requirements and provide more comprehensive harrowing operations. Through the adjustable spacing mechanism, the double-row disc harrow can flexibly adjust the spacing between the first rotating shaft 19 and the second rotating shaft 20 according to different planting row spacing or field operation requirements. The appropriate spacing can more accurately achieve human-like cutting actions, thereby more effectively cutting and crushing the straw. The cutting size of the straw is further reduced, the crushing effect is enhanced, and the straw decomposition efficiency is improved. The image recognition mechanism can obtain real-time information on the amount of straw coverage on the field surface. Based on this information, the intelligent controller 4 accurately controls the second power transmission mechanism and the spacing adjustment mechanism, allowing the double-row disc harrow to adjust the working parameters according to actual conditions, improve the quality and efficiency of the operation, and realize intelligent operation.

[0031] In a preferred embodiment of this invention, the second power transmission mechanism includes a hydraulic motor 16, a first solenoid valve, and a speed differential adjustment mechanism. The oil inlet of the hydraulic motor 16 is connected to the oil outlet of the hydraulic output device of the tractor 21, and the oil outlet of the hydraulic motor 16 is connected to the oil return port of the hydraulic output device of the tractor 21. The first solenoid valve is disposed on a pipeline connecting the oil inlet of the hydraulic motor 16 and the oil outlet of the hydraulic output device of the tractor 21. The first solenoid valve is signal-connected to the intelligent controller 4. The hydraulic motor 16 is connected to the second rotating shaft 20 through the speed differential adjustment mechanism to achieve stepless drive of the second rotating shaft 20. The speed differential adjustment mechanism can also adjust the rotation direction of the second rotating shaft 20. Through the combination of hydraulic drive and intelligent control, the second rotating shaft 20 can achieve stepless drive and rotation direction adjustment. The stepless drive can precisely control the speed of the second rotating shaft 20 according to the field operation conditions, adapting to different soil, straw, and other conditions. The adjustable rotation direction increases the adaptability of the disc harrow to different operation scenarios, further improving operational flexibility and effectiveness.

[0032] In a preferred solution of this embodiment, the speed difference adjustment mechanism includes a coupling 17 and a reduction gearbox 10. One end of the coupling 17 is transmission-connected to the output shaft of the hydraulic motor 16, and the other end is transmission-connected to the reduction gearbox 10. The end of the reduction gearbox 10 away from the coupling 17 is transmission-connected to the second rotating shaft 20. The coupling 17 ensures stable power transmission between the output shaft of the hydraulic motor 16 and the reduction gearbox 10. The reduction gearbox 10 can adjust the speed and amplify the torque according to the operation requirements, provide appropriate motion parameters for the second rotating shaft 20, and ensure that the second disc harrow can perform harrowing operations at an appropriate speed and torque, effectively avoiding the impact of insufficient or excessive power on the operation quality.

[0033] In a preferred solution of this embodiment, the spacing adjustment mechanism includes multiple hydraulic cylinders 7, a second solenoid valve 6 and multiple telescopic support and guide mechanisms, each hydraulic cylinder 7 is evenly arranged between the first frame 5 and the second frame 14, the cylinder barrel of the hydraulic cylinder 7 is fixedly connected to the top of the first frame 5, the piston rod of the hydraulic cylinder 7 is fixedly connected to the top of the second frame 14, the oil inlet of the hydraulic cylinder 7 is connected to the oil outlet of the hydraulic output device of the tractor 21, and the oil outlet of the hydraulic cylinder 7 is connected to the oil return port of the hydraulic output device of the tractor 21. The second solenoid valve 6 is arranged on a main pipeline connecting the oil outlet of the hydraulic output device of the tractor 21 and the oil inlet of each hydraulic cylinder 7. Multiple telescopic support and guide mechanisms are evenly arranged between the first frame 5 and the second frame 14, and the two ends of the telescopic support and guide mechanisms are respectively fixedly connected to the first frame 5 and the second frame 14 to support and guide the movement of the second frame 14. The multiple hydraulic cylinders 7 are evenly distributed to provide stable and balanced driving force, thereby realizing precise control of the movement of the second frame 14 and ensuring the accuracy of adjusting the spacing. The second solenoid valve 6 precisely controls the oil flow to the hydraulic cylinder 7 according to instructions from the intelligent controller 4, thereby enabling flexible adjustment of the spacing. The telescopic support and guide mechanism supports and guides the movement of the second frame 14, effectively preventing it from shifting and shaking during movement, maintaining the stability and reliability of the equipment.

[0034] In a preferred solution of this embodiment, the telescopic support and guide mechanism includes a first support and guide tube 8 and a second support and guide tube 9, one end of the first support and guide tube 8 is fixedly connected to the first frame 5, one end of the second support and guide tube 9 is fixedly connected to the second frame 14, and the other end is slidably sleeved in the first support and guide tube 8 to support and guide the movement of the second frame 14. This simple and reliable telescopic support and guide mechanism, through the cooperation of the first support and guide tube 8 and the second support and guide tube 9, can ensure the smooth movement of the second frame 14 while providing effective supporting force for it, thereby preventing the second frame 14 from displacement deviation during the spacing adjustment process, and ensuring the stability of the entire double-row disc harrow structure and the accuracy of operation.

[0035] In a preferred embodiment of the present invention, the image recognition mechanism includes a multispectral camera 2 and a lifting rod 3. The fixed end of the lifting rod 3 is fixedly connected to the top of the first frame 5. The multispectral camera 2 is fixedly connected to the lifting end of the lifting rod 3 so that the lifting rod 3 can achieve height adjustment. The multispectral camera 2 and the lifting rod 3 are connected to the intelligent controller 4 by signal. The lifting rod 3 can be a hydraulic telescopic rod, an electric telescopic rod, a multi-stage telescopic telescopic rod shear, or a fork-type lifting rod 3. The multispectral camera 2, combined with the height-adjustable lifting rod 3, can adjust the camera's shooting height according to different field conditions and operational requirements, thereby obtaining clearer and more accurate image information of the amount of straw cover on the field surface. The selection of multiple types of lifting rods 3 allows for reasonable configuration based on actual application scenarios and equipment requirements, enhancing the adaptability and flexibility of the image recognition mechanism, improving image recognition results and overall system performance.

[0036] In a preferred embodiment of this invention, a rotational speed sensor 12, a torque sensor 13, and a laser sensor 18 are further included. The rotational speed sensor 12 and the torque sensor 13 are mounted on the coupling 17 to identify the rotational speed and output torque of the coupling 17. The laser sensor 18 is mounted on the second frame 14 to measure the wheelbase between the first rotating shaft 19 and the second rotating shaft 20. The rotational speed sensor 12, the torque sensor 13, and the laser sensor 18 are all connected to the intelligent controller 4. The rotational speed sensor 12 and the torque sensor 13 monitor the rotational speed and output torque of the coupling 17 in real time, providing data to the intelligent controller 4 to promptly detect whether the disc harrow is operating normally and whether there are any overloads or other problems, thereby ensuring safe and stable operation of the equipment. The laser sensor 18 accurately measures the wheelbase between the first rotating shaft 19 and the second rotating shaft 20, enabling the intelligent controller 4 to more accurately control the spacing adjustment mechanism, ensuring that the operating parameters of the double-row disc harrow remain at optimal levels and improving operational accuracy.

[0037] In a preferred solution of this embodiment, it also includes a ground leveling roller 15 and a third frame. The third frame is installed on the side of the second frame 14 away from the first frame 5. The ground leveling roller 15 is rotatably connected to the third frame to level the field surface crushed by the first disc harrow and the second disc harrow. After the first disc harrow and the second disc harrow complete the soil crushing operation, the ground leveling roller 15 further levels the field surface to make the land surface smoother, which is conducive to the smooth progress of subsequent farming activities such as sowing and irrigation, and improves land utilization and crop planting effects.

[0038] In a preferred embodiment of the present invention, the outer surfaces of the first disc harrow blade, the second disc harrow blade 11 and the leveling roller 15 are all non-smooth in shape with bionic adhesion reduction and desorption, and the height of the surface concave-convex units 22 is 0.5-2 mm, and the distribution density is 15-25 / cm 2, forming a non-smooth shape with bionic anti-adhesion and desorption. This non-smooth shape design with bionic anti-adhesion and desorption can effectively reduce the adhesion of soil and straw to the surface of the harrow blade and the leveling roller 15, reduce blockage during operation, maintain the continuous and stable operation of the equipment, and at the same time enhance the crushing and processing capabilities of soil and straw, and improve operation quality and efficiency.

[0039] Example 2

[0040] This embodiment provides a method for using a double-row disc harrow as described above, characterized in that it includes the following steps:

[0041] 1. Equipment installation and connection

[0042] The spline connecting shaft 1 is connected to the power output shaft of the tractor 21, so that the first power transmission mechanism of the first disc harrow obtains power to drive the first rotating shaft 19 to rotate.

[0043] Connect the oil outlet of the hydraulic pipeline of tractor 21 to the oil inlet of the hydraulic motor 16 in the second power transmission mechanism (through the first solenoid valve), and connect the oil outlet of the hydraulic motor 16 to the hydraulic oil return port of tractor 21; at the same time, connect the oil outlet of the hydraulic pipeline of tractor 21 to the oil inlets of each hydraulic cylinder 7 in the spacing adjustment mechanism through the second solenoid valve 6 to ensure that the oil circuit of the hydraulic system is connected normally.

[0044] The multispectral camera 2 and the lifting rod 3 in the image recognition mechanism are installed on the top of the first frame 5, and the multispectral camera 2, the lifting rod 3, the speed sensor 12, the torque sensor 13, the laser sensor 18, etc. are connected to the intelligent controller 4 to complete the circuit connection and signal transmission settings.

[0045] 2. Preparation before field work

[0046] Based on the actual planting row spacing or field operation requirements, the intelligent controller 4 controls the hydraulic cylinder 7 in the spacing adjustment mechanism to move the second frame 14 closer to or farther from the first frame 5, adjusting the spacing between the first rotating shaft 19 and the second rotating shaft 20 to the appropriate distance. The telescopic support and guide mechanism ensures smooth and accurate movement of the second frame 14.

[0047] If necessary, the intelligent controller 4 can be used to control the movement of the lifting rod 3 (such as a hydraulic telescopic rod, an electric telescopic rod, etc.) according to different field conditions and operation requirements, and adjust the shooting height of the multispectral camera 2 to obtain clear and accurate image information of the straw coverage on the field surface.

[0048] 3. Field operation process

[0049] The tractor 21 moves, driving the first disc harrow to rotate and perform harrowing operations. Simultaneously, the multispectral camera 2 of the image recognition mechanism identifies the amount of straw cover on the field surface near the side of the first frame 5 near the tractor 21 during the movement of the tractor 21, and transmits this information to the intelligent controller 4 in real time.

[0050] Based on the received straw mulch amount information, the intelligent controller 4 controls the first solenoid valve to adjust the oil flow rate of the hydraulic motor 16, thereby adjusting the speed of the hydraulic motor 16. The hydraulic motor 16 drives the second rotating shaft 20 of the second disc harrow through the speed difference adjustment mechanism (coupling 17 and reduction gearbox 10), achieving stepless drive of the second rotating shaft 20. The speed difference adjustment mechanism can also adjust the rotation direction of the second rotating shaft 20, allowing the second disc harrow to work in coordination with the first disc harrow, improving the harrowing effect.

[0051] The intelligent controller 4 controls the hydraulic cylinder 7 in the spacing adjustment mechanism to move the second frame 14 closer to or farther from the first frame 5, adjusting the spacing between the first rotating shaft 19 and the second rotating shaft 20 to a suitable distance. The telescopic support guide mechanism ensures smooth and accurate movement of the second frame 14.

[0052] During operation, the speed sensor 12 and the torque sensor 13 monitor the speed and output torque of the coupling 17 in real time, and feed back to the intelligent controller 4 so as to promptly detect whether the working status of the disc harrow is normal and whether there is any overload problem; the laser sensor 18 measures the wheelbase between the first rotating shaft 19 and the second rotating shaft 20 in real time, and transmits the data to the intelligent controller 4. When the wheelbase changes or does not meet the set value, the intelligent controller 4 promptly controls the spacing adjustment mechanism for fine-tuning to ensure stable and reliable operation of the equipment and operation accuracy.

[0053] 4. After completing the homework

[0054] After completing the field work, the tractor 21 stops moving and shuts down all power equipment and related control systems.

[0055] Clean the equipment, especially the first disc harrow blade, the second disc harrow blade 11 and the ground preparation roller 15 with bionic anti-adhesion and desorption non-smooth surface, to reduce soil and straw residues and keep the equipment in good operating condition for the next operation.

[0056] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A double-row disc harrow, characterized by: include: A first disc harrow, comprising a first frame (5), a first rotating shaft (19), a plurality of first disc harrow blades, and a first power transmission mechanism, wherein the first rotating shaft (19) is rotatably connected to the first frame (5), the plurality of first disc harrow blades are sleeved and fixed on the first rotating shaft (19), one end of the first power transmission mechanism is transmission-connected to an output shaft of a tractor (21), and the other end is transmission-connected to the first rotating shaft (19) to drive the first rotating shaft (19) to rotate; A second disc harrow, the second disc harrow comprising a second frame (14), a second rotating shaft (20), a plurality of second disc harrow blades (11) and a second power transmission mechanism, the second frame (14) being located on a side of the first frame (5) away from the tractor (21), the second rotating shaft (20) being rotationally connected to the second frame (14), and the second rotating shaft (20) being arranged parallel to the first rotating shaft (19), the plurality of second disc harrow blades (11) being sleeved and fixed on the second rotating shaft (20), and the second disc harrow blades (11) and the first disc harrow blades being arranged alternately in sequence, one end of the second power transmission mechanism being connected to a hydraulic output device of the tractor (21), and the other end being transmission-connected to the second rotating shaft (20) to drive the second rotating shaft (20) to rotate; a spacing adjustment mechanism, wherein a fixed end of the spacing adjustment mechanism is fixedly connected to the first frame (5), and a movable end of the spacing adjustment mechanism is fixedly connected to the second frame (14), and the movable end of the spacing adjustment mechanism can move horizontally to drive the second frame (14) to move closer to or away from the first frame (5) to adjust the spacing between the first rotating shaft (19) and the second rotating shaft (20); An image recognition mechanism, the image recognition mechanism being mounted on the top of the first frame (5) so as to be able to recognize the amount of straw covering the field surface on the side of the first frame (5) close to the tractor (21); An intelligent controller (4) is signal-connected to the second power transmission mechanism, the spacing adjustment mechanism, and the image recognition mechanism.

2. The double-row disc harrow according to claim 1, characterized in that: The second power transmission mechanism comprises a hydraulic motor (16), a first solenoid valve and a speed difference adjustment mechanism, wherein the oil inlet of the hydraulic motor (16) is connected to the oil outlet of the hydraulic output device of the tractor (21), and the oil outlet of the hydraulic motor (16) is connected to the oil return port of the hydraulic output device of the tractor (21), the first solenoid valve is arranged on a pipe connecting the oil inlet of the hydraulic motor (16) and the oil outlet of the hydraulic output device of the tractor (21), the first solenoid valve is connected to the intelligent controller (4) by signal, the hydraulic motor (16) is connected to the second rotating shaft (20) through the speed difference adjustment mechanism to realize stepless driving of the second rotating shaft (20), and the speed difference adjustment mechanism can adjust the rotation direction of the second rotating shaft (20).

3. The double-row disc harrow according to claim 2, characterized in that: The speed difference adjustment mechanism includes a coupling (17) and a reduction gear box (10), one end of the coupling (17) is transmission-connected to the output shaft of the hydraulic motor (16), and the other end is transmission-connected to the reduction gear box (10), and the end of the reduction gear box (10) away from the coupling (17) is transmission-connected to the second rotating shaft (20).

4. The double-row disc harrow according to claim 3, characterized in that: The spacing adjustment mechanism comprises a plurality of hydraulic cylinders (7), a second solenoid valve (6) and a plurality of telescopic support guide mechanisms, each of the hydraulic cylinders (7) is evenly arranged between the first frame (5) and the second frame (14), the cylinder barrel of the hydraulic cylinder (7) is fixedly connected to the top of the first frame (5), the piston rod of the hydraulic cylinder (7) is fixedly connected to the top of the second frame (14), the oil inlet of the hydraulic cylinder (7) is communicated with the oil outlet of the hydraulic output device of the tractor (21), and the outlet of the hydraulic cylinder (7) is connected to the oil outlet of the hydraulic output device of the tractor (21). The oil port is connected to the oil return port of the hydraulic output device of the tractor (21); the second solenoid valve (6) is arranged on a main pipeline connecting the oil outlet of the hydraulic output device of the tractor (21) and the oil inlet of each hydraulic cylinder (7); a plurality of telescopic support and guide mechanisms are evenly arranged between the first frame (5) and the second frame (14); and the two ends of the telescopic support and guide mechanism are respectively fixedly connected to the first frame (5) and the second frame (14) to support and guide the movement of the second frame (14).

5. The double-row disc harrow according to claim 4, characterized in that: The telescopic support guide mechanism comprises a first support guide tube (8) and a second support guide tube (9), wherein one end of the first support guide tube (8) is fixedly connected to the first frame (5), and one end of the second support guide tube (9) is fixedly connected to the second frame (14), and the other end is slidably sleeved in the first support guide tube (8) to support and guide the movement of the second frame (14).

6. The double-row disc harrow according to claim 1, characterized in that: The image recognition mechanism comprises a multispectral camera (2) and a lifting rod (3); the fixed end of the lifting rod (3) is fixedly connected to the top end of the first frame (5); the multispectral camera (2) is fixedly connected to the lifting end of the lifting rod (3) to complete height adjustment under the drive of the lifting rod (3); the multispectral camera (2) and the lifting rod (3) are signal-connected to the intelligent controller (4).

7. The double-row disc harrow according to claim 3, characterized in that: The invention also includes a rotation speed sensor (12), a torque sensor (13) and a laser sensor (18). The rotation speed sensor (12) and the torque sensor (13) are arranged on the coupling (17) to identify the rotation speed and output torque of the coupling (17). The laser sensor (18) is arranged on the second frame (14) to measure the wheelbase between the first rotating shaft (19) and the second rotating shaft (20). The rotation speed sensor (12), the torque sensor (13) and the laser sensor (18) are all connected to the intelligent controller (4) by signal.

8. The double-row disc harrow according to claim 1, characterized in that: The invention also includes a ground leveling roller (15) and a third frame, wherein the third frame is installed on a side of the second frame (14) away from the first frame (5), and the ground leveling roller (15) is rotatably connected to the third frame to level the field surface broken by the first disc harrow and the second disc harrow.

9. The double-row disc harrow according to claim 8, characterized in that: The outer surfaces of the first disc harrow blade, the second disc harrow blade (11) and the soil leveling roller (15) are all in a non-smooth form with bionic adhesion reduction and desorption.

10. A method for using the double-row disc harrow according to any one of claims 1 to 9, characterized in that: The following steps are involved: The tractor (21) drives the first rotating shaft (19) to rotate via a first power transmission mechanism, and drives the second rotating shaft (20) to rotate via a second power transmission mechanism; The image recognition mechanism identifies information about the amount of straw coverage on the field surface on the side of the first frame (5) close to the tractor (21) during movement of the tractor (21), and transmits the information to the intelligent controller (4) in real time; The intelligent controller (4) controls the spacing adjustment mechanism to move the second frame (14) closer to or farther away from the first frame (5) based on the received straw coverage amount information, and adjusts the spacing between the first rotating shaft (19) and the second rotating shaft (20) to a suitable distance; and controls the second power transmission mechanism to adjust the second rotating shaft (20) to a suitable rotation speed and rotation direction.

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