harvester

Abstract

This invention discloses a harvester, including a frame, a cutting system, a baling system, a conveying system, and a crop-lifting system. The frame has a front end and a rear end at two ends along a first direction. The cutting system is connected to the front end of the frame and is used to cut crops. The baling system is connected to the frame and located behind the cutting system, and is used to bale the crops. The conveying system is connected to the frame and is used to transport the crops cut by the cutting system to the baling system. The crop-lifting system is connected to the frame and includes two crop-lifting plates spaced apart along a second direction, the crop-lifting plates being arc-shaped.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a harvester. Background Technology

[0002] Currently, in the field of leek harvesting machinery, harvesters have made certain technological progress in recent years. Traditional leek harvesting methods often rely on disc blades to cut close to the soil layer, which not only results in rough cutting surfaces and rapid blade wear, but also damages the sustainable growth of leeks.

[0003] Due to a lack of specialized machinery, some areas have had to resort to harvesters designed for crops like wheat and rice, which is not only inefficient but also results in a significant waste of resources. This is especially true for low-growing, clustered plants like chives, where traditional serrated or disc harvesting methods often lead to messy crop arrangement, making subsequent baling difficult. Furthermore, considering the characteristics of chive cultivation areas, large harvesters are not suitable for harvesting small areas of chives in mountainous terrain. Summary of the Invention

[0004] The purpose of this invention is to provide a harvester to solve the problems of the prior art.

[0005] To solve the above-mentioned technical problems, embodiments of the present invention provide a harvester, comprising:

[0006] A frame, wherein the two ends of the frame along the first direction are a front end and a rear end, respectively;

[0007] A cutting system, connected to the front end of the frame, is used for cutting crops;

[0008] A binding system, which is connected to the frame and located behind the cutting system, is used to bind crops.

[0009] A conveying system, connected to the frame, is used to transport the crops cut by the cutting system to the binding system;

[0010] The rice-lifting system is connected to the frame and includes two rice-lifting plates spaced apart along a second direction, the rice-lifting plates being arc-shaped.

[0011] In one embodiment, the radius ranges from 25mm to 50mm.

[0012] In one embodiment, the support board includes a straight segment and an arc segment connected to each other, the arc segment being located at the bottom end of the straight segment and the radius of the arc segment being in the range of 25mm-50mm.

[0013] In one embodiment, the rice-feeding system further includes:

[0014] A first rotating shaft, the axis of which extends vertically and is rotatably connected to the frame;

[0015] A turntable, which is sleeved on the outside of the first rotating shaft;

[0016] Multiple rice lifters are arranged at intervals around the axis of the first rotating shaft, with the inner ends of each rice lifter connected to the turntable and the outer ends extending outside the turntable.

[0017] One side of the harvester is curved.

[0018] In one embodiment, the radius of the arc surface ranges from 25mm to 50mm.

[0019] In one embodiment, the cutting system includes:

[0020] A lower cutting plate, the lower cutting plate being connected to the frame and having a plurality of lower cutting blades arranged along the second direction at its front end; and

[0021] An upper cutting plate is stacked on top of the lower cutting plate and can move along the second direction. The front end of the upper cutting plate is provided with a plurality of upper cutting blades arranged along the second direction.

[0022] In one embodiment, the upper cutting plate is configured to be movable along the first direction;

[0023] The lower cutter gradually tilts upward from the rear end to the front end, and the tilt angle with the horizontal plane ranges from 10° to 15°.

[0024] The tilt angle of the upper cutter's front end is the same as the tilt angle of the lower cutter.

[0025] In one embodiment, the strapping system includes:

[0026] A flip plate, which is rotatably connected to the frame, is used to receive crops transported by the conveying system;

[0027] The grab ring is ring-shaped and rotatably connected to the frame. The grab ring is located below the flipping plate and can receive crops from the flipping plate.

[0028] A wire-pulling rod, which is rotatably connected to the frame, is used to pull the binding wire out into the grab ring and wrap it around the crop in a loop.

[0029] A knotter, connected to the frame, is used to knot the binding wires.

[0030] In one embodiment, the two gripping rings are arranged at intervals along the second direction;

[0031] The pull rod is located between the two gripping rings.

[0032] In one embodiment, the rack includes:

[0033] Two mounting plates spaced apart along the second direction;

[0034] A guide plate located between the two mounting plates;

[0035] A limiting plate located below the guide plate, the two ends of the limiting plate being connected to the two mounting plates respectively and having multiple clearance grooves;

[0036] The front end of the conveying system is located above the cutting system, and the rear end is located above the guide plate;

[0037] The flip plate is rotatably connected to the two mounting plates and is located between the guide plate and the limiting plate;

[0038] The grab ring is rotatably connected to the two mounting plates and is located in one of the clearance slots;

[0039] The knotter is located below the guide plate and at the front end of the limiting plate;

[0040] The pull rod is rotatably connected to the two mounting plates and can pass through the other clearance slot and rotate to the knotter.

[0041] In one embodiment, the limiting plate is an arc-shaped plate.

[0042] In one embodiment, the harvester further includes:

[0043] A sensing device, the sensing device being used to sense the height of crops;

[0044] A driver located on the lower cutting plate and connected to the upper cutting plate, the driver being configured to drive the upper cutting plate to move along the first direction;

[0045] A control device, connected to the sensing device and the driver, is used to receive signals from the sensing device and control the operation of the driver.

[0046] In one embodiment, the harvester further includes a solar panel mounted on top of the frame for energy storage. Attached Figure Description

[0047] Figure 1 and Figure 2 This is a perspective view of a harvester according to an embodiment of the present invention.

[0048] Figure 3 and Figure 4 yes Figure 2 An exploded view of the harvester in the illustrated embodiment.

[0049] Figure 5 This is a perspective view of a cutting system according to an embodiment of the present invention.

[0050] Figure 6 yes Figure 1 A perspective view of a transmission component of the transmission mechanism in the illustrated embodiment.

[0051] Reference numerals: 100, harvester; 1, frame; 11, bottom mounting plate; 12, top mounting plate; 13, mounting plate; 14, guide plate; 15, receiving plate; 151, first section; 152, second section; 153, clearance groove; 2, cutting system; 21, upper cutting plate; 22, lower cutting plate; 221, bottom cutting plate; 222, inclined plate; 23, upper cutter; 24, lower cutter; 251, first driver; 252, first eccentric wheel; 253, first drive rod; 261, second eccentric wheel; 262. 27. Second drive rod; 28. Drive plate; 3. Rotating shaft; 3. Rice lifting system; 31. Rice lifting plate; 32. First rotating shaft; 33. Turntable; 34. Rice lifting device; 341. Arc surface; 4. Conveying system; 5. Binding system; 51. Tilting plate; 52. Grip ring; 53. Wire pulling rod; 54. Knotter; 6. Transmission mechanism; 61. First gear set; 62. Pulley; 63. Belt; 64. Second rotating shaft; 65. Third rotating shaft; 66. Second gear set; 67. Fourth rotating shaft; 7. Third drive unit; 8. Sensing device; Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0053] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0054] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0055] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0056] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0057] In the following description, in order to clearly demonstrate the structure and operation of the present invention, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0058] This invention relates to a harvester 100, which includes a frame 1, a cutting system 2, a tying system 5, a conveying system 4, and a crop-supporting system 3. The frame 1 supports the cutting system 2, the tying system 5, the conveying system 4, and the crop-supporting system 3. The cutting system 2 is used to cut crops, typically chives, but leafy vegetables can also be used; 'chives' is used to represent crops in this context. The tying system 5 is used to tie up the harvested chives. The front end of the conveying system 4 is located above the cutting system 2, and the rear end is located in front of the tying system 5. The conveying system 4 transports the cut chives from the cutting system 2 to the tying system 5 for easy bundling. The crop-supporting system 3 is used to upright chives and other easily lodging crops for easier cutting.

[0059] The harvester 100 according to an embodiment of the present invention will now be described in detail.

[0060] The frame 1 has a front end and a rear end at its two ends along a first direction, which is the direction of travel of the harvester 100. The front end is the head of the harvester 100 in the direction of travel. The specific shape of the frame 1 can be set according to requirements and is not strictly limited.

[0061] The cutting system 2 is connected to the front end of the frame 1. The cutting system 2 includes a lower cutting plate 22 and an upper cutting plate 21. The lower cutting plate 22 is connected to the front end of the frame 1, and the front end of the lower cutting plate 22 is provided with a plurality of lower cutting blades 24 arranged along a second direction. The second direction is the left-right direction of the harvester 100, which is perpendicular to the first direction.

[0062] Furthermore, the lower cutter 24 is not a flat plate along the horizontal direction, but a slope that gradually slopes upward from the rear end to the front end, and the angle of inclination of the lower cutter 24 to the horizontal plane is in the range of 10° to 15°.

[0063] The upper cutting plate 21 is stacked on the top surface of the lower cutting plate 22 and can move along the second direction and the first direction. The front end of the upper cutting plate 21 is provided with a plurality of upper cutting blades 23 arranged along the second direction. The front end inclination angle of the upper cutting blades 23 is the same as that of the lower cutting blades 24.

[0064] The upper cutting plate 21 can cut chives when it moves along the second direction. The upper cutting plate 21 can also move along the second direction. When the upper cutting plate 21 moves along the second direction, the cutting points of the upper cutting blade 23 and the lower cutting blade 24 will move backward. Since both the upper cutting blade 23 and the lower cutting blade 24 gradually rise from the rear to the front, the further back the cutting point of the upper cutting blade 23 and the lower cutting blade 24 is, the lower the cutting point is. When the upper cutting blade 23 moves towards the front, the cutting points of the upper cutting blade 23 and the lower cutting blade 24 will move forward, and the cutting point will increase. By moving the upper cutting blade 23, the height of the cutting point can be changed, making it convenient to adjust the cutting point according to the height of the chives.

[0065] The cutting machine of this invention can precisely adjust the cutting length of chives according to actual needs and can also adapt to the growth state of the chives. Chives from different batches or growing environments may vary in length and thickness. The adjustable upper cutter 23 can better adapt to these changes, ensuring consistent cutting results. Furthermore, there is no need to frequently change cutting blades of different specifications; adjusting the upper cutter 23 allows for quick adaptation to different cutting tasks, saving time and manpower and improving cutting efficiency. Proper adjustment can reduce excessive squeezing or pulling of chives due to improper blade positioning, thereby maximizing the preservation of the chives' integrity and freshness. For first-time users or inexperienced operators, this adjustable function provides greater flexibility and tolerance, reducing the difficulty of cutting operations and facilitating daily maintenance and deep cleaning, extending the lifespan of the cutter.

[0066] As a preferred embodiment, the lower cutting blade 24 and the upper cutting blade 23 have the same shape, and the blade width of the lower cutting blade 24 ranges from 2cm to 8cm. The blade thickness of the lower cutting blade 24 and the upper cutting blade 23 ranges from 1mm to 5mm.

[0067] For thinner chive stems, the blade width of the lower cutting blade 24 and the upper cutting blade 23 can be designed to be 2cm to 3cm. This width ensures that the blades can quickly and accurately cut the chives during cutting, while avoiding unnecessary damage to surrounding chives. The blade thickness of the lower cutting blade 24 and the upper cutting blade 23 can be controlled to be 1mm to 2mm to ensure the sharpness of the blades, making the cutting smoother and reducing the compression and damage to the chive stems.

[0068] For medium-thickness chive stems, the blade width of the lower cutter 24 and the upper cutter 23 can be designed to be 3cm to 5cm. This width can accommodate the size of the chive stems and effectively cut them. The blade thickness of the lower cutter 24 and the upper cutter 23 is 2mm to 3mm, which maintains the strength of the blades while ensuring sharpness, achieving efficient cutting.

[0069] For thicker leek stems, a wider blade is required, which can be designed to be 5cm to 8cm. A wider blade can cut the thicker leek stem completely in one go. The blade thickness of the lower cutter 24 and the upper cutter 23 can be increased to 3mm to 5mm to enhance the durability and stability of the blades and withstand greater cutting force.

[0070] The upper cutting plate 21 moves at a distance less than or equal to 10cm along the first direction. That is, the range of forward and backward movement of the upper cutter 23 can be set between ±5cm, and 0 represents the overlapping position of the upper cutter 23 and the lower cutter 24, with a thickness of 0mm to 3mm.

[0071] The vertical distance between the lower cutting plate 22 and the bottom end of the harvester 100 is 8cm to 30cm.

[0072] For chives that are 10cm-20cm tall, the blade height of the down-cutting knife 24 can be designed to be 8cm-18cm. This ensures that the chives can be cut completely during harvesting, while avoiding cutting too deep into the soil, reducing damage to the soil structure and wear on the blade.

[0073] For chives that are 20cm to 30cm tall, the blade height of the 24mm cutting knife should be set between 18cm and 28cm. This height accommodates the growth height of the chives, allows for effective cutting, and prevents any chives from being missed due to an excessively high blade.

[0074] For individual chives exceeding 30cm in height, the blade height of the 24mm cutting blade can be designed to be around 28cm to 35cm. However, in actual design, factors such as the tendency of the chives to lodging, harvesting efficiency, and machine stability also need to be considered.

[0075] The lower cutting plate 22 includes a bottom cutting plate 221 and an inclined plate 222. The bottom cutting plate 221 is a horizontally arranged plate and is stacked on the bottom surface of the upper cutting plate 21. The front end of the bottom cutting plate 221 is provided with a plurality of lower cutting blades 24.

[0076] The bottom end of the inclined plate 222 is connected to the rear end of the bottom cutting plate 221, and the top end gradually increases in height towards the rear end and is connected to the frame 1. The inclined plate 222 is gradually inclined towards the rear end and is connected to the connecting plate of the frame 1. The connecting plate is also inclined and its inclined surface is the same as that of the inclined plate 222.

[0077] Furthermore, the connecting plate of the frame 1 has multiple mounting positions at different heights, which are multiple mounting slots or multiple screw holes at different heights. The inclined plate 222 has multiple mounting holes, any one of which can be connected to any one of the mounting positions via bolts. By connecting the mounting holes to different mounting positions with bolts, the position of the lower cutting plate 22 along the first direction can be adjusted. Since the inclined plate 222 of the lower cutting plate 22 is inclined, it can move up or down along the connecting plate, thereby adjusting the overall height of the lower cutting plate 22 to accommodate chives of different heights.

[0078] Furthermore, the cutting system 2 also includes two drivers, two eccentric wheels, and two drive rods. The two drivers are defined as a first driver 251 and a second driver, the two eccentric wheels are defined as a first eccentric wheel 252 and a second eccentric wheel 261, and the two drive rods are defined as a first drive rod 253 and a second drive rod 262.

[0079] The first driver 251, which is also a motor, is connected to the upper cutting plate 21, and the axis of the output shaft of the first driver 251 extends along the first direction. The first eccentric wheel 252 is connected to the output shaft of the first driver 251 and can rotate with the shaft of the first driver 251.

[0080] One end of the first drive rod 253 is connected to the first eccentric wheel 252, and the other end is connected to the upper cutting plate 21.

[0081] When the first driver 251 is activated, it can drive the first eccentric wheel 252 to rotate. The first drive rod 253 is connected to the first eccentric wheel 252 and can move along the second direction as the first eccentric wheel 252 rotates.

[0082] exist Figure 3-4In the specific embodiment shown, the top surface of the bottom cutting plate 221 is provided with two drive plates 27 arranged at intervals along the second direction, and the bottom end of the drive plates 27 is connected to the top surface of the upper cutting plate 21. The axis of the first drive rod 253 does not overlap with the output shaft axis of the first driver 251, and the first drive rod 253 is located between the two drive plates 27. When the first driver 251 rotates, the first eccentric wheel 252 can rotate accordingly. Since the axis of the first drive rod 253 does not overlap with the output shaft axis of the first driver 251, the first drive rod 253 can rotate with the first eccentric wheel 252, and drive the two drive plates 27 to move the upper cutting plate 21 along the second direction.

[0083] The second driver is also a motor, connected to the inclined plate 222 of the lower cutting plate 22, and the axis of the output shaft of the second driver extends along the second direction. The second eccentric wheel 261 is connected to the output shaft of the second driver. One end of the second drive rod 262 is movably connected to the upper cutting plate 21, and the other end is connected to the second eccentric wheel 261.

[0084] Specifically, the top surface of the upper cutting plate 21 is provided with a rotating shaft 28, and the front end of the second drive rod 262 is provided with a shaft hole, which is rotatably connected to the rotating shaft 28. The rear end of the second drive rod 262 is connected to the second eccentric wheel 261. The second eccentric wheel 261 rotates with the rotation of the second driver, and drives the second drive rod 262 to move back and forth during the rotation. The second drive rod 262 drives the upper cutting plate 21 to move back and forth along the first direction, thereby adjusting the height of the cutting point.

[0085] The lifting system 3 is connected to the frame 1 and includes two lifting plates 31, two first rotating shafts 32, two turntables 33 and multiple lifting devices 34.

[0086] Among them, two supporting boards 31 are arranged at intervals along the second direction and are located at the front end of the frame 1 to support the fallen chives for easy cutting.

[0087] The supporting board 31 is an arc-shaped board that gradually increases in height from the front end to the rear end, and the radius of the supporting board 31 is in the range of 25mm-50mm, that is, the radius of curvature is 20-40 (1 / mm). 2 As a preferred embodiment, the radius of the support board 31 is 33 mm.

[0088] By collecting basic data and conducting in-depth analysis, a relatively accurate harvesting trajectory model was established. Designing the harvesting board 31 by calculating the curvature of the human hand offers numerous advantages. In one specific embodiment, the radius of the harvesting board 31 is 33mm, which is the curvature of the maximum angle when the thumb and forefinger are spread. This curvature improves ergonomics, making the shape of the harvesting board 31 more closely match the natural movement trajectory of the human hand. This allows the force applied to the harvesting board 31 to be more effectively converted into the energy required for work, reducing energy loss and improving work efficiency.

[0089] In another embodiment, the support board 31 includes a straight segment and an arc segment connected to each other. The arc segment is located at the bottom end of the straight segment, and the radius of the arc segment ranges from 25mm to 50mm. That is, the straight segment is a flat plate that gradually slopes upwards from the front end to the rear end, while the arc segment is integrally formed with the straight segment and located at the front end of the straight segment. The radius of the arc segment is preferably 33mm, which is also referenced to the curvature of the human thumb and index finger.

[0090] The first rotating shaft 32 is rotatably connected to the frame 1 and its axis extends vertically. Specifically, the frame 1 includes a top mounting plate 12 and a bottom mounting plate 11, wherein the top mounting plate 12 is located above the bottom mounting plate 11.

[0091] The top ends of the two first rotating shafts 32 are rotatably connected to the top mounting plate 12 via bearings, and the bottom ends are rotatably connected to the bottom mounting plate 11 via bearings. The rear ends of the two supporting boards 31 are connected to the top mounting plate 12, and the front ends are connected to the bottom mounting plate 11, such that the front ends of the supporting boards 31 are lower than their rear ends. In other words, the two first rotating shafts 32 are located below the rear ends of the two supporting boards 31.

[0092] Two turntables 33 are respectively fitted onto the two first rotating shafts 32. Multiple rice lifters 34 are divided into two groups. In each group, multiple rice lifters 34 are evenly spaced around the circumference of the turntable 33, with their inner ends connected to the turntable 33, i.e., spaced around the axis of the first rotating shaft 32, and their outer ends extending outside the turntable 33. When the first rotating shaft 32 rotates, the turntables 33 can drive the rice lifters 34 to rotate around their axis.

[0093] One side of the rice-lifting device 34 is an arc surface 341, and the other side is a flat surface. The radius of the arc surface 341 of the rice-lifting device 34 is preferably in the range of 25mm to 50mm. More preferably, the radius of the arc surface 341 of the rice-lifting device 34 is 33mm. Designing the rice-lifting device 34 by calculating the curvature of the human hand has many advantages.

[0094] First, it can improve ergonomics, making the shape of the harvester 34 more in line with the natural movement trajectory of the human hand, reducing fatigue and discomfort during operation, thereby improving the work efficiency and comfort of the operator.

[0095] Secondly, it enhances the accuracy and stability of operation. Designed according to the curvature of the human hand, it allows operators to control the rice harvester 34 more precisely, reducing the probability of operational errors and ensuring work quality.

[0096] Furthermore, it helps optimize mechanical properties, enabling the force applied to the feeder 34 to be more effectively converted into the energy required for work, reducing energy loss and improving work efficiency.

[0097] The plane where the rice-lifting device 34 is located is basically flush with the front end of the rice-lifting board 31.

[0098] The shape of the trajectory of the rake 34 is determined by the ratio of its circumferential speed Vy to the forward speed Vm of the harvester 100; this is the rake-lifting speed ratio. Only when the ratio is ≥1 can the leek stalks be guided towards the cutter for cutting, and the stalks continue to be pushed backward after cutting to prevent accumulation and blockage on the cutter. The rake 34 is considered to be functioning normally when the ratio is >1. During operation, the rake 34 needs to maintain good working quality, meeting not only the >1 requirement but also the requirements of different stages of operation. During cutting, the rake reel should support the crop stalks to facilitate cutting and prevent the cutter from pushing the stalks forward.

[0099] The harvester 100 also includes a transmission mechanism 6 and another drive, which is defined as the third drive 7.

[0100] The transmission mechanism 6 is mounted on the frame 1 and connected to the first rotating shaft 32 and the transmission system 4. The third driver 7 is connected to the transmission mechanism 6 and can drive the transmission system and the first rotating shaft 32 to rotate through the transmission mechanism 6.

[0101] Specifically, such as Figure 1-5 As shown, the transmission mechanism 6 includes two identical sets of transmission components. Each transmission component includes two gear sets, two pulleys 62, and a belt 63. One gear set is a first gear set 61, which includes three meshing gears. One gear is sleeved on the outside of the first rotating shaft 32, and the other two gears are respectively connected to two rotating shafts, which are defined as the second rotating shaft 64. The second rotating shaft 64 extends vertically and is rotatably connected to the bottom mounting plate 11 or to other parts of the frame 1.

[0102] One pulley 62 and a gear are fitted onto the same second rotating shaft 64, and the other pulley 62 is fitted onto a third rotating shaft 65, with a roller also mounted on the outside of the third rotating shaft 65. The two pulleys 62 are driven by a belt 63.

[0103] The third rotating shaft 65 is vertical and rotatably connected to the frame 1. The third rotating shaft 65 is located at the front end of the frame 1 and above the upper cutting plate 21. The third rotating shafts 65 of the two transmission components are arranged at intervals along the second direction.

[0104] The transmission components also include a fourth rotating shaft 67, whose axis extends along the second direction and is connected to the rear end of the frame 1. The fourth rotating shaft 67 is located in front of the binding system 5 and is significantly higher than the third rotating shaft 65. The fourth rotating shafts 67 of the two transmission components are arranged at intervals along the vertical direction and are each equipped with rollers. The conveying system 4 includes two conveyor belts, which are respectively fitted onto the sleeves outside the third rotating shaft 65 and the sleeves outside the fourth rotating shaft 67 of the two transmission components, thereby gradually tilting the vertical chives into a horizontal state and transporting them to the binding system 5 at the rear.

[0105] Another gear set is the second gear set 66, which also includes three gears arranged vertically with adjacent gears meshing. Two of these gears are connected to the fourth shaft 65 of the two transmission components, and the other gear is connected to the output shaft of the third driver 7. The third driver 7 is also a motor, which drives the fourth shaft 67 and the third shaft 65 to rotate via the second gear set 66. The third shaft 65 drives the first rotating shaft 28 to rotate via two pulleys 62 and the first gear set 61.

[0106] The frame 1 includes two mounting plates 13 spaced apart along a second direction and a guide plate 14 located between the two mounting plates 13. The two mounting plates 13 are located at the rear end of the frame 1, and the guide plate 14 is connected to the top of the two mounting plates 13. The guide plate 14 is an arc-shaped plate that gradually increases in height from the rear end to the front end. The guide plate 14 is located between the conveying system 4 and the binding system 5. The front end of the guide plate 14 is located between the sleeves outside the two fourth rotating shafts 65, which facilitates the reception of chives transported by the two conveyor belts. The rear end of the guide plate 14 is located above the binding system 5, and the chives can flow into the binding system 5 through the guide plate 14.

[0107] In one specific embodiment, the binding system 5 includes a flipping plate 51, a grab ring 52, a wire pulling rod 53, and a knotter 54. The flipping plate 51 is plate-shaped and located below the rear end of the guide plate 14. The flipping plate 51 is rotatably connected to the two mounting plates 13 via a fifth rotating shaft. The axis of the fifth rotating shaft extends along a second direction. The flipping plate 51 can receive the chives transported by the conveying system 4, and when it receives enough chives, it flips the chives into the grab ring 52 for binding.

[0108] The grab ring 52 is ring-shaped and has an opening. The middle part of the grab ring 52 along the circumference is rotatably connected to the two mounting plates 13 through the sixth rotating shaft. The grab ring 52 is located below the flip plate 51 and can receive the chives from the flip plate 51.

[0109] The wire-pulling rod 53 is rotatably connected to the two mounting plates 13 via a seventh pivot and is located behind the grab ring 52. It is used to pull the binding wire into the grab ring 52 and bind the chives. The axes of the seventh and sixth pivots are parallel to the fifth pivot and are located behind the fifth pivot.

[0110] The knotter 54 is connected to the frame 1 and located in front of the gripper ring 52, and is used to knot the binding wire. The knotter 54 is any instrument available in the prior art, and there is no limitation on the specific implementation of the knotter 54.

[0111] The binding system 5 is configured to alternate between the harvesting state, the binding state, and the completed state.

[0112] In the harvesting state, the pulling rod 53 pulls the binding wire from the knotter 54 and places it into the grab ring 52, and grabs the end of the binding wire. The flipping plate 51 flips the received chives into the grab ring 52 and places them on the binding wire. The opening of the grab ring 52 faces the top to facilitate receiving the chives transported by the flipping plate 51.

[0113] In the bundled state, the flip plate 51 continues to receive a new batch of chives transported by the conveying system 4, while the grab ring 52 rotates forward, and the pull rod 53 pulls the end of the bundled line and passes it around the chives to the knotter 54, which knots the bundled line to complete the bundling.

[0114] In the completed state, the grab ring 52 rotates backward, the bundled chives are released from the grab ring 52, and the grab ring 52 rotates forward to receive a new batch of chives transported by the flipping plate 51.

[0115] As a preferred embodiment, the frame 1 further includes a receiving plate 15 located below the flip plate 51, and the flip plate 51 can rotate between the receiving plate 15 and the guide plate 14. In addition, the two ends of the receiving plate 15 are respectively connected to the two mounting plates 13 and are provided with three clearance grooves 153.

[0116] The two gripping rings 52 are respectively located within the two clearance slots 153 and can be flipped over from the back of the receiving plate 15 to extend beyond its top surface. The knotter 54 is located below the guide plate 14 and at the front end of the receiving plate 15.

[0117] The pull rod 53 is located between the two gripping rings 52 and includes a straight segment and an arc segment connected to each other. The bottom end of the straight segment is connected to the seventh rotating shaft, and the top end is connected to the bottom end of the arc segment. The top end of the arc segment of the pull rod 53 can pass through another clearance groove 153 and rotate to the knotter 54, delivering the thread end to the knotter 54 and pulling out a new thread end.

[0118] In addition, the flip plate 51 is also provided with a clearance opening, which is aligned with the wire pull rod 53 to avoid the wire pull rod 53.

[0119] As a preferred embodiment, the receiving plate 15 includes a first segment 151 and a second segment 152. The first segment 151 is an arc-shaped plate that gradually increases in height from the rear end to the front end and curves towards the front end. The front end of the second segment 152 is connected to the bottom end of the first segment 151, and the second segment 152 is also an arc-shaped plate that gradually increases in height from the rear end to the front end and curves towards the front end.

[0120] In the bundled state, the gripping ring 52 rotates forward and positions the chives between the gripping ring 52 and the first segment 151. In other words, the chives are restricted by the first segment 151 of the receiving plate 15 and the gripping ring 52, thus forming a compact state for easy bundling.

[0121] In the completed state, the grab ring 52 rotates backward, and the bundled crops are released from the grab ring 52 and move to the outside along the second segment 152. The second segment 152 is equivalent to guiding the bundled chives to the outside.

[0122] Of course, the harvester 100 also includes motors that drive the fifth, sixth and seventh rotating shafts.

[0123] The harvester 100 also includes a sensing device 8 and a control device. The control device is connected to the sensing device 8 and the aforementioned plurality of drivers, and is used to receive signals from the sensing device 8 and control the operation of the aforementioned plurality of drivers.

[0124] The sensing device 8 is used to sense the height of crops. This sensing device 8 preferably utilizes machine vision technology, enabling automatic identification of the chives' location for precise harvesting, improving harvesting efficiency and quality. Furthermore, a chive recognition system based on a convolutional neural network was implemented using the PyTorch framework and PyCharm environment. First, a dataset containing various vegetables was constructed, and images of vegetables such as chives were scientifically and accurately classified and preprocessed to ensure data diversity and validity. Then, a fully connected classification layer model was used to train the training set. The model performed excellently on the test set, with an accuracy approaching 90%. The trained weight model was saved and validated and predicted. The results showed that the model's confidence level for chive recognition reached 93.5566%, validating the model's high accuracy. Finally, the model was applied to actual image recognition. Images were captured using an external camera, and the images were preprocessed and recognized, achieving high-confidence recognition of chives, with a confidence level of 0.95. The entire project process is scientifically sound and the technology is mature and stable, providing strong support for subsequent image recognition applications.

[0125] In a specific embodiment, data can be collected using a binocular depth camera and a lidar, and image recognition and depth information analysis can be performed using GPU processing power to calculate the optimal harvesting path in real time. Then, the data is sent to the control device via Wi-Fi connection. The control device can control the speed of the harvester 100, adjust the height of the cutting system 2, etc.

[0126] The specific operating procedure of the harvester 100 is as follows: When the harvester 100 enters the field, the lifting plate 31 guides the single row of chives into the harvesting path. Then, the lifting plate straightens the chives, and the lifting plate further straightens and clamps the chives. Subsequently, the cutting system 2 performs reciprocating motion to precisely cut the chives. The cut chives are immediately conveyed to the binding system 5 via a conveyor belt, marking the completion of the harvesting process. The harvester 100 of this invention is highly flexible in design and can adapt to the harvesting needs of different crops. Furthermore, by utilizing machine vision technology—that is, by simulating the visual function of the human eye through computer processing—the harvester 100 can identify, measure, and process chive images, improving its adaptability to crops and significantly increasing production efficiency.

[0127] The commercial leek harvester 100 primarily relies on a gasoline engine for power, which not only generates a large amount of polluting waste gas during the harvesting process, causing serious pollution to the environment and atmosphere, but also contradicts the current trend of green and environmentally friendly development. To address this issue, the top of the frame 1 of this invention is also equipped with a solar panel for energy storage. The introduction of the solar panel provides the harvester 100 with a continuous supply of green energy, enabling the harvester 100 to operate autonomously without relying on external power sources or fuel, greatly expanding its application scenarios.

[0128] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0129] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0130] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A harvester characterized in that, The utility model relates to a cutting and bundling system for crops, comprising: a frame, the frame has a front end and a rear end at two ends along a first direction respectively; a cutting system, the cutting system is connected with the front end of the frame, and is used for cutting crops; a bundling system, the bundling system is connected with the frame and is located behind the cutting system, and is used for bundling crops; a conveying system, the conveying system is connected with the frame, and is used for transporting crops cut by the cutting system to the bundling system; a straw supporting system, the straw supporting system is connected with the frame and comprises two straw supporting plates arranged along a second direction at intervals, and the straw supporting plates are arc-shaped; the cutting system comprises: a lower cutting plate, the lower cutting plate is connected with the frame, and the front end of the lower cutting plate is provided with a plurality of lower cutting knives arranged along the second direction; and an upper cutting plate, the upper cutting plate is stacked on the top surface of the lower cutting plate, the front end of the upper cutting plate is provided with a plurality of upper cutting knives arranged along the second direction, and the upper cutting plate is driven by two drivers to move along the first direction and the second direction respectively, when the upper cutting plate moves along the second direction, the plurality of upper cutting knives and the plurality of lower cutting knives cut crops in cooperation; when the upper cutting plate moves along the first direction, the front and back positions of the cutting point formed by the upper cutting knives and the lower cutting knives can be adjusted; the lower cutting knives are gradually inclined upward from the rear end to the front end, and the inclination angle of the lower cutting knives with the horizontal plane ranges from 10 DEG to 15 DEG ; the inclination angle of the front end of the upper cutting knives is the same as the inclination angle of the lower cutting knives.

2. The harvester of claim 1, wherein, The radius of the straw supporting plate ranges from 25mm to 50mm.

3. The harvester of claim 1, wherein, The straw supporting plate comprises a straight line segment and an arc segment connected with each other, the arc segment is located at the bottom end of the straight line segment, and the radius of the arc segment ranges from 25mm to 50mm.

4. The harvester of claim 1, wherein, The straw supporting system further comprises: a first rotating shaft, the first rotating shaft is rotatably connected with the frame, and the axis line extends along the vertical direction; a rotating disc, the rotating disc is sleeved outside the first rotating shaft; a plurality of straw supporting devices, the plurality of straw supporting devices are arranged at intervals around the axis line of the first rotating shaft, and the inner ends of the plurality of straw supporting devices are connected with the rotating disc respectively, and the outer ends extend outside the rotating disc; one side of the straw supporting device is arc-shaped.

5. The harvester of claim 4, wherein, The radius of the arc-shaped surface ranges from 25mm to 50mm.

6. The harvester of claim 1, wherein, The bundling system comprises: a turnover plate, the turnover plate is rotatably connected with the frame, and is used for receiving crops transported by the conveying system; a grabbing ring, the grabbing ring is annular, and is rotatably connected with the frame, the grabbing ring is located below the turnover plate, and can receive crops of the turnover plate; a pulling rod, the pulling rod is rotatably connected with the frame, and is used for pulling a bundling line into the grabbing ring and winding the bundling line around crops in an annular shape; a knotter, the knotter is connected with the frame, and is used for knotting the bundling line.

7. The harvester of claim 6, wherein, The two grabbing rings are arranged at intervals along the second direction; the pulling rod is located between the two grabbing rings.

8. The harvester of claim 6, wherein, The frame comprises: two mounting plates arranged at intervals along the second direction; a guide plate located between the two mounting plates; a limiting plate located below the guide plate, two ends of the limiting plate are connected with the two mounting plates respectively, and the limiting plate is provided with a plurality of avoiding grooves. The front end of the conveying system is above the cutting system, and the rear end is above the guide plate; The turnover plate is rotatably connected with the two mounting plates and is located between the guide plate and the limiting plate; The grab ring is rotatably connected with the two mounting plates and is located in one of the avoiding grooves; The knotter is located below the guide plate and at the front end of the limiting plate; The pulling rod is rotatably connected with the two mounting plates and can pass through the other avoiding groove and rotate to the knotter.

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