Inclined double-helix axial-flow crop harvesting device

Abstract

The invention discloses an inclined double-helix axial-flow crop harvesting device, and relates to the technical field of agricultural machinery, the inclined double-helix axial-flow crop harvesting device comprises a rack, a picking unit is mounted in the rack, the picking unit comprises a pair of parallel spiral picking rollers arranged at intervals, and a mandrel is arranged in each spiral picking roller; the axis of the mandrel and the horizontal plane form an inclination angle of 15-45 degrees, the mandrel is obliquely installed on the rack, the spiral picking roller is provided with a flexible driving lever which is fixedly connected and spirally distributed, the other end of the flexible driving lever is provided with a picking claw, and the rack is provided with a power driving assembly. The double-spiral picking device further comprises a separation assembly, the separation assembly is installed in the machine frame and located below the spiral picking rollers, a conveying assembly is arranged below the separation assembly, and a collecting box is installed at the tail end of the machine frame. Pepper can be picked from the bottom to the top, and the harvesting rate of pepper picking is increased.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to an inclined double-helix axial flow crop harvesting device. Background Technology

[0002] With the development of large-scale agriculture, the demand for mechanized harvesting of cash crops is becoming increasingly urgent. Chili peppers, as an important cash crop, are characterized by their tight seasonality, high labor intensity, and high labor costs during harvesting. Currently, various harvesting devices have been developed both domestically and internationally for mechanized chili pepper harvesting, among which harvesters based on the picking roller principle are quite common. These devices typically use a pair of opposing rotating picking rollers (such as elastic picking rollers or textured picking rollers), pulling the chili pepper plant through the gap between the rollers, and separating the fruit from the stem through squeezing, brushing, or striking actions. Such devices can, to a certain extent, replace manual labor and improve harvesting efficiency.

[0003] However, existing chili harvesting devices still have shortcomings in practical application and promotion. Especially in complex field operation environments, when traditional picking rollers are operating at high speed, chili plants (especially varieties with lush branches and leaves or vines) are very easy to get tangled in the roller shaft or gaps, resulting in frequent cleaning, operation interruption, and reduced harvesting efficiency. Moreover, there are large differences in the height of chili plants and the height of fruits off the ground, while the picking height of traditional picking roller devices is usually fixed, resulting in the missed picking of fruits at lower levels or the inability to effectively contact fruits at higher levels, resulting in a high harvesting loss rate. Summary of the Invention

[0004] The purpose of this invention is to provide an inclined double-helix axial flow crop harvesting device to solve the problems of inconsistent chili plant height and the fixed height of traditional harvesting devices, which lead to missed harvesting of fruits.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an inclined double-helix axial flow crop harvesting device, comprising a frame, wherein a picking unit is installed inside the frame, the picking unit comprising a pair of parallel and spaced-apart helical picking rollers, wherein a spindle is provided inside the helical picking rollers, the axis of the spindle being inclinedly mounted on the frame at an angle of 15° to 45° with respect to the horizontal plane, wherein a flexible lever is fixedly connected to and also helically distributed on the helical picking rollers, the other end of the flexible lever being provided with a picking claw, and a power drive assembly is provided on the frame, the power drive assembly being connected to the spindle to drive the two helical picking rollers to rotate in opposite directions;

[0006] It also includes a separation component installed inside the frame and below the spiral picking roller. Below the separation component is a conveying component. A collection box is installed at the tail end of the frame. The conveying component conveys the chili peppers into the collection box.

[0007] Furthermore, the frame is made of steel, and the vertical cross-section of the frame is a concave shape with the opening facing downwards. Guide plates are provided on the left and right side walls at the inlet of the frame, and the two guide plates gradually expand outwards. The flexible levers are arranged alternately on a pair of spiral picking rollers, forming a continuous and dynamically changing picking gap between the two spiral picking rollers.

[0008] Furthermore, the two ends of the spiral picking roller are fixedly connected to the outer wall of the mandrel, and the flexible lever and the picking claw are made of silicone material, with the picking claws distributed at intervals on the flexible lever.

[0009] Furthermore, the power drive assembly includes a main shaft, a coupling, a first helical gear, a second helical gear, and a first drive component. An mounting plate is provided inside the frame and near the top of the spindle. The spindle extends to the mounting plate and is connected to the first helical gear. The main shaft is horizontally mounted inside the frame. The second helical gear is symmetrically mounted on the main shaft, and the first helical gear and the second helical gear cooperate with each other.

[0010] Furthermore, triangular blocks are symmetrically arranged on the left and right side walls inside the frame. The triangular blocks are installed on the spindle near the bottom. The coupling is rotatably mounted on the triangular blocks. The other end of the coupling is connected to the other end of the spindle. The external power supply of the drive component is installed on the outer side wall of the frame. The output shaft of the drive component is also connected to one end of the main shaft through the coupling.

[0011] Furthermore, the separation assembly includes a pivot, separation plates, a transmission gear, and a drive component. The internal left and right side walls of the frame are provided with a mounting frame. The pivots are spaced apart along the length of the mounting frame. One end of the pivot is rotatably connected to the mounting frame, and the other end is rotatably connected to the side plate of the frame. Each pivot is provided with spaced separation plates.

[0012] Furthermore, the vertical cross-sectional profile of the separating plate is sawtooth-shaped, and the separating plates on two adjacent pivots are staggered. The transmission gear is installed at one end of the pivot extending out of the frame, and two adjacent transmission gears mesh with each other. A positioning plate is provided on the outer wall of the frame, and the second drive unit is installed on the positioning plate. The output shaft is connected to one of the pivots at the end through a coupling.

[0013] Furthermore, the conveying assembly includes a conveying shaft, a conveyor belt, and a drive unit three. The conveying shafts are symmetrically mounted on the left and right side plates inside the frame and below the pivot. The conveyor belt is located between the two conveying shafts, one of which extends out of the frame. The external power supply of the drive unit three is also mounted on the outer side wall of the positioning plate. The output shaft of the drive unit three is connected to one of the conveying shafts via a coupling.

[0014] Furthermore, the collection box has an opening on one side facing the frame and is positioned directly opposite the conveyor belt. The opening sidewall of the collection box is fixedly connected to the mounting frame, and the bottom of the frame is provided with wheels near the four corners.

[0015] Compared with the prior art, the present invention provides an inclined double-helix axial flow crop harvesting device. Through the set frame, parallel and inclined spiral picking rollers are installed inside the frame. A continuous and dynamically changing picking gap is formed between the two spiral picking rollers. When the device starts collecting peppers, the peppers gradually enter between the two spiral picking rollers. The two spiral picking rollers hit the peppers as they rotate, thereby bringing the peppers out. Moreover, the inclined spiral picking rollers form a continuous picking working surface from high to low, which can simultaneously contact and process fruits at different heights of the plant, reducing the phenomenon of missed harvesting.

[0016] Meanwhile, a flexible lever is installed on the spiral picking roller, and a picking claw is installed at the end of the flexible lever. The flexible lever and picking claw replace the traditional rigid picking roller. When in contact with the pepper fruit, they can generate buffer and deformation. The fruit stem is separated by a flexible combing and pulling action, rather than rigid squeezing or impact, which protects the integrity of the pepper skin and reduces mechanical damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall inclined double-helix axial flow crop harvesting device provided in an embodiment of the present invention;

[0019] Figure 2 This is a front view of the inclined double-helix axial flow crop harvesting device provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of components such as the spindle and power drive assembly provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the spiral picking roller component structure provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of components such as the frame and separation assembly provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of components such as the separation component and the conveying component provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Spiral picking roller; 3. Mandrel; 4. Flexible lever; 5. Picking claw; 6. Guide plate; 7. Picking gap; 8. Main shaft; 9. Coupling; 10. Helical gear one; 11. Helical gear two; 12. Drive component one; 13. Mounting plate; 14. Triangular block; 15. Pivot; 16. Separating plate; 17. Transmission gear; 18. Drive component two; 19. Mounting frame; 20. Positioning plate; 21. Conveyor shaft; 22. Conveyor belt; 23. Drive component three; 24. Traveling wheel; 25. Collection box. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] Example:

[0029] This invention provides an inclined double-helix axial flow crop harvesting device, including a frame 1. A picking unit is installed inside the frame 1. The picking unit includes a pair of parallel and spaced-apart spiral picking rollers 2. A spindle 3 is provided inside each spiral picking roller 2. The axis of the spindle 3 is inclined at an angle of 15° to 45° to the horizontal plane and installed on the frame 1. Flexible levers 4, also spirally distributed and fixedly connected, are provided on each spiral picking roller 2. Picking claws 5 are provided at the other end of each flexible lever 4. A power drive assembly is provided on the frame 1, and the power drive assembly is connected to the spindle 3 to drive the two spiral picking rollers 2 to rotate in opposite directions.

[0030] It also includes a separation component, which is installed inside the frame 1 and below the spiral picking roller 2. A conveying component is provided below the separation component. A collection box 25 is installed at the tail end of the frame 1. The conveying component conveys the chili peppers into the collection box 25.

[0031] It should be noted that: through the frame 1, parallel and inclined spiral picking rollers 2 are installed inside the frame 1. A continuous and dynamically changing picking gap 7 is formed between the two spiral picking rollers 2. When the device starts collecting peppers, the peppers gradually enter between the two spiral picking rollers 2. The two spiral picking rollers 2 hit the peppers as they rotate, thus bringing the peppers out. Moreover, the inclined spiral picking rollers 2 form a continuous picking working surface from high to low, which can simultaneously contact and process fruits at different heights of the plant, reducing the phenomenon of missed picking.

[0032] Meanwhile, a flexible lever 4 is installed on the spiral picking roller 2, and a picking claw 5 is installed at the end of the flexible lever 4. The flexible lever 4 and the picking claw 5 replace the traditional rigid picking roller. When in contact with the pepper fruit, they can generate buffer and deformation, and separate the fruit stem through flexible combing and pulling action, rather than rigid squeezing or impact, which well protects the integrity of the pepper skin and reduces mechanical damage.

[0033] The working principle of this invention: Driven by a traction device, the harvesting device moves forward along the crop path via the traveling wheels 24. The plants are guided into the frame 1 by the guide plate 6. A pair of counter-rotating, obliquely placed spiral picking rollers 2, with flexible picking claws 5 on them, brush and pull the pepper fruits off the plants. The picked fruits and some impurities fall to the separation component below, where the fruits are separated from most of the branches, leaves, and impurities by the rotating serrated separating plates 16. The cleaned pepper fruits fall onto the conveyor belt 22 and are transported to the collection box 25 at the tail end of the frame 1 for collection. Optionally, an airflow generated by a fan (not shown) can further blow away lightweight impurities from the separation component.

[0034] In this embodiment: the frame 1 is a steel component, the vertical cross-section of the frame 1 is a concave shape with the opening facing downwards, the left and right side walls of the inlet of the frame 1 are provided with guide plates 6, and the two guide plates 6 gradually expand outwards, the flexible lever 4 is arranged alternately on a pair of spiral picking rollers 2, forming a continuous and dynamically changing picking gap 7 between the two spiral picking rollers 2.

[0035] It should be noted that the steel frame 1 ensures the strength and durability of the overall structure, and can withstand the vibration and load during field operations. Its downward-facing concave cross-section design helps to accommodate and guide the plants into the picking area, while preventing the material from spilling out during the operation.

[0036] The outwardly expanding guide plate 6, set on the inlet side wall, can gradually converge and guide the plant smoothly into the working area between the double helix picking rollers 2, reducing the risk of blockage.

[0037] The flexible lever 4 is arranged alternately on the two spiral picking rollers 2, so that the two rollers form a continuously changing picking gap 7 during the opposite rotation process, which can adapt to different fruit sizes and positions, realize continuous and flexible combing and picking of fruits, and improve the adaptability and picking efficiency of harvesting.

[0038] In this embodiment: the two ends of the spiral picking roller 2 are fixedly connected to the outer wall of the spindle 3, the flexible lever 4 and the picking claw 5 are made of silicone material, and the picking claw 5 is distributed at intervals on the flexible lever 4.

[0039] It should be noted that the spiral picking roller 2, through its fixed connection with the spindle 3 at both ends, ensures structural stability and reliable power transmission during high-speed rotation. The flexible lever 4 and picking claws 5 are made of silicone, which has good elasticity and wear resistance. They can undergo elastic deformation during the picking process, effectively buffering the impact on the fruit and avoiding problems such as crushing and scratching caused by traditional rigid picking rollers. The picking claws 5 are spaced apart on the lever, which not only ensures the continuity of the picking action, but also avoids the entanglement or blockage of plants caused by excessive density, further improving the efficiency and low-damage harvesting of chili fruits.

[0040] In this embodiment: the power drive assembly includes a main shaft 8, a coupling 9, a first helical gear 10, a second helical gear 11, and a first drive component 12. A mounting plate 13 is provided inside the frame 1 and near the top of the spindle 3. The spindle 3 extends onto the mounting plate 13 and is connected to the first helical gear 10. The main shaft 8 is horizontally installed inside the frame 1. The second helical gear 11 is symmetrically installed on the main shaft 8, and the first helical gear 10 and the second helical gear 11 cooperate with each other.

[0041] It should be noted that the power drive assembly achieves synchronous reverse rotation of the two spindles 3 through the meshing transmission of the main shaft 8 with helical gear 10 and helical gear 21, ensuring that the two spiral pick-up rollers 2 form a stable and coordinated relative motion.

[0042] Helical gear transmission has the characteristics of strong load-bearing capacity and smooth transmission. It is suitable for power transmission in inclined working conditions of this device. The drive component 12 directly drives the spindle 3 through the coupling 9. It has a compact structure and high transmission efficiency, which effectively ensures that the picking roller speed is adjustable and the direction is controllable, adapting to changes in different crops and field conditions.

[0043] Specifically, the meshing transmission of helical gear 10 and helical gear 21 ultimately drives the spindle 3 to rotate synchronously in opposite directions. The spiral picking roller 2 is fixedly connected to the spindle 3, thus carrying the peppers upwards during rotation. At the same time, flexible levers 4 and picking claws 5 are installed on the spiral picking roller 2. The flexible levers 4 and picking claws 5 on both sides rotate synchronously in opposite directions, thereby better separating the peppers from the plant and carrying them to both sides of the frame 1 so that they eventually fall onto the separation component. This reduces the chance of peppers falling between the two spiral picking rollers 2 and further improves the harvesting and collection rate of peppers.

[0044] The output shaft of the drive component 12 is connected to one end of the main shaft 8 via a coupling 9. The main shaft 8 transmits power synchronously and in reverse to the two spindles 3 through two pairs of meshing helical gears 11 and 10 symmetrically arranged on it. The bottom of the spindle 3 is supported by a bearing seat (or the triangular block 14) and is coaxially connected to the output shaft of the drive component 12 via another coupling 9.

[0045] In this embodiment: triangular blocks 14 are symmetrically arranged on the left and right side walls inside the frame 1. The triangular blocks 14 are installed on the spindle 3 near the bottom. The coupling 9 is rotatably installed on the triangular blocks 14. The other end of the coupling 9 is connected to the other end of the spindle 3. The external power supply of the drive component 12 is installed on the outer side wall of the frame 1. The output shaft of the drive component 12 is also connected to one end of the main shaft 8 through the coupling 9.

[0046] It should be noted that the triangular block 14 structure is set on the side wall of the frame 1 and provides additional support for the bottom of the spindle 3, which enhances the rigidity and stability of the spindle 3 in the inclined state, prevents deformation or vibration caused by the large cantilever length, and the coupling 9 is connected to the spindle 3 through the mounting position on the triangular block 14, which further optimizes the power transmission path, improves the overall smoothness and reliability of the system operation, and extends the service life of the equipment.

[0047] In this embodiment: the separation assembly includes a pivot 15, a separation plate 16, a transmission gear 17, and a drive component 18. The inner left and right side walls of the frame 1 are provided with a mounting frame 19. The pivots 15 are spaced apart along the length of the mounting frame 19. One end of the pivot 15 is rotatably connected to the mounting frame 19, and the other end is rotatably connected to the side plate of the frame 1. Each pivot 15 is provided with spaced separation plates 16.

[0048] It should be noted that the separation component uses serrated separation plates 16 set on multiple pivots 15 and arranged alternately between adjacent pivots 15 to form a continuous and varied sorting working surface. This structure can effectively receive the mixture of chili peppers and impurities falling from the spiral picking roller 2, and separate the chili peppers from branches, leaves, soil and other impurities through the shaking and screening action of the serrated separation plates 16. Moreover, the staggered distribution of the separation plates 16 avoids material accumulation, thereby improving separation efficiency and cleanliness.

[0049] In this embodiment: the vertical cross-sectional profile of the separation plate 16 is sawtooth-shaped, the separation plates 16 on two adjacent pivots 15 are staggered, the transmission gear 17 is installed at one end of the pivot 15 extending out of the frame 1, and two adjacent transmission gears 17 mesh with each other, a positioning plate 20 is provided on the outer side wall of the frame 1, the drive component 18 is installed on the positioning plate 20, and the output shaft is connected to one of the pivots 15 at the end through a coupling 9.

[0050] It should be noted that the serrated separating plate 16 can enhance the tearing and blocking effect on impurities (such as stems, leaves, etc.), while allowing smaller or heavier pepper fruits to fall smoothly through the gap, thus achieving preliminary cleaning of impurities. The meshing transmission of the transmission gear 17 ensures that all pivots 15 operate synchronously, avoiding material blockage or incomplete separation due to differences in rotational speed. The second drive component 18 directly drives the end pivot 15 through the coupling 9. The structure is simple, maintenance is convenient, and it is conducive to maintaining the coordinated and stable operation of the separating components.

[0051] In this embodiment: the conveying assembly includes a conveying shaft 21, a conveyor belt 22, and a drive component 23. The conveying shaft 21 is symmetrically installed on the left and right side plates inside the frame 1 and below the pivot 15. The conveyor belt 22 is located between the two conveying shafts 21, one of which extends out of the frame 1. The external power supply on the drive component 23 is also installed on the outer side wall of the positioning plate 20. The output shaft on the drive component 23 is connected to one of the conveying shafts 21 through a coupling 9.

[0052] It should be noted that the conveying assembly is located below the separating assembly and can receive the pre-cleaned peppers. The conveyor shaft 21 drives the conveyor belt 22 to horizontally transport the peppers to the collection box 25. This design achieves smooth material transfer, avoiding secondary damage and labor intensity caused by manual collection. The drive component 23 is connected to the conveyor shaft 21 via coupling 9, allowing adjustment of the conveying speed according to actual operational needs. This ensures good matching with the aforementioned picking and separating processes, improving the continuity and efficiency of the overall harvesting process.

[0053] In this embodiment: the collection box 25 has an opening facing the side of the frame 1 and is positioned directly opposite the conveyor belt 22. The opening sidewall of the collection box 25 is fixedly connected to the mounting frame 19. The bottom of the frame 1 is provided with wheels 24 near the four corners.

[0054] It should be noted that the opening of the collection box 25 is directly opposite the discharge end of the conveyor belt 22, which enables the automatic falling and collection of chili peppers, reduces manual intervention during the harvesting process, and improves work efficiency.

[0055] The four corners of the bottom of the frame 1 are equipped with wheels 24, which enable the equipment to have good mobility and facilitate rapid transfer between different work areas, adapting to the needs of large-area field harvesting.

[0056] It should be further explained that an externally powered fan can be installed on the inner wall of the frame 1. The fan's outlet is facing the separation component. So when the pepper and the leaves are separated on the separation component, the air blown by the fan can blow the leaves backward and the pepper continues to move forward, causing it to be blown out from the inlet end of the frame 1.

[0057] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tilted double-helix axial flow crop harvesting device, characterized in that, include: A frame (1) is provided with a picking unit inside the frame (1). The picking unit includes a pair of parallel and spaced spiral picking rollers (2). The spiral picking rollers (2) are provided with a spindle (3) inside. The axis of the spindle (3) is obliquely installed on the frame (1) at an angle of 15° to 45° with the horizontal plane. The spiral picking rollers (2) are provided with flexible levers (4) that are fixedly connected and also spirally distributed. The other end of the flexible levers (4) is provided with picking claws (5). The frame (1) is provided with a power drive assembly. The power drive assembly is connected to the spindle (3) and drives the two spiral picking rollers (2) to rotate in opposite directions. It also includes a separation component installed inside the frame (1) and below the spiral picking roller (2), a conveying component is provided below the separation component, and a collection box (25) is installed at the tail end of the frame (1), the conveying component conveying the chili peppers into the collection box (25).

2. The inclined double-helix axial flow crop harvesting device according to claim 1, characterized in that, The frame (1) is a steel component. The vertical cross-section of the frame (1) is a concave shape with the opening facing downwards. Guide plates (6) are provided on the left and right side walls at the inlet of the frame (1), and the two guide plates (6) gradually expand outwards. The flexible lever (4) is arranged alternately on a pair of spiral picking rollers (2), forming a continuous and dynamically changing picking gap (7) between the two spiral picking rollers (2).

3. The inclined double-helix axial flow crop harvesting device according to claim 1, characterized in that, The two ends of the spiral picking roller (2) are fixedly connected to the outer wall of the spindle (3). The flexible lever (4) and the picking claw (5) are made of silicone material, and the picking claw (5) is distributed at intervals on the flexible lever (4).

4. The inclined double-helix axial flow crop harvesting device according to claim 1, characterized in that, The power drive assembly includes a main shaft (8), a coupling (9), a helical gear one (10), a helical gear two (11), and a drive component one (12). A mounting plate (13) is provided inside the frame (1) and near the top of the spindle (3). The spindle (3) extends to the mounting plate (13) and is connected to the helical gear one (10). The main shaft (8) is installed laterally inside the frame (1). The helical gear two (11) is symmetrically installed on the main shaft (8), and the helical gear one (10) and the helical gear two (11) cooperate with each other.

5. The inclined double-helix axial flow crop harvesting device according to claim 4, characterized in that, The frame (1) has symmetrical triangular blocks (14) on its inner left and right side walls. The triangular blocks (14) are installed on the spindle (3) near the bottom. The coupling (9) is rotatably installed on the triangular blocks (14). The other end of the coupling (9) is connected to the other end of the spindle (3). The drive component (12) is connected to an external power supply and installed on the outer side wall of the frame (1). The output shaft of the drive component (12) is also connected to one end of the main shaft (8) through the coupling (9).

6. The inclined double-helix axial flow crop harvesting device according to claim 1, characterized in that, The separation assembly includes a pivot (15), a separation plate (16), a transmission gear (17), and a second drive component (18). The frame (1) has an installation frame (19) on its inner left and right side walls. The pivots (15) are spaced apart along the long direction of the installation frame (19). One end of the pivot (15) is rotatably connected to the installation frame (19), and the other end is rotatably connected to the side plate of the frame (1). Each pivot (15) has spaced separation plates (16).

7. The inclined double-helix axial flow crop harvesting device according to claim 6, characterized in that, The vertical cross-sectional profile of the separation plate (16) is sawtooth-shaped. The separation plates (16) on two adjacent pivots (15) are staggered and spaced apart. The transmission gear (17) is installed at one end of the pivot (15) extending out of the frame (1), and two adjacent transmission gears (17) mesh with each other. A positioning plate (20) is provided on the outer wall of the frame (1). The second drive component (18) is installed on the positioning plate (20). The output shaft is connected to one of the pivots (15) at the end through a coupling (9).

8. The inclined double-helix axial flow crop harvesting device according to claim 7, characterized in that, The conveying assembly includes a conveyor shaft (21), a conveyor belt (22), and a drive unit three (23). The conveyor shaft (21) is symmetrically mounted on the left and right side plates inside the frame (1) and below the pivot (15). The conveyor belt (22) is located between the two conveyor shafts (21), one of which extends out of the frame (1). The external power supply of the drive unit three (23) is also mounted on the outer side wall of the positioning plate (20). The output shaft of the drive unit three (23) is connected to one of the conveyor shafts (21) through a coupling (9).

9. The inclined double-helix axial flow crop harvesting device according to claim 8, characterized in that, The collection box (25) has an opening on one side facing the frame (1) and is positioned directly opposite the conveyor belt (22). The opening sidewall of the collection box (25) is fixedly connected to the mounting frame (19). The bottom of the frame (1) is provided with wheels (24) near the four corners.

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