Leek harvester capable of adjusting harvesting line spacing

Abstract

The utility model provides a Chinese chive harvester capable of adjusting harvesting line spacing, comprising: a frame body comprising a front frame body and a rear frame body, the front frame body comprising an upper front cross beam and a lower front cross beam, the lower front cross beam being provided with a lower chute; the two harvesting mechanisms are distributed on the side, away from the rear frame body, of the front frame body in the second direction, each harvesting mechanism comprises a first connecting assembly with one end slidably connected with the corresponding lower sliding groove, and a cutting assembly is arranged at the bottom of each first connecting assembly and used for cutting fragrant-flowered garlic; the first driving mechanism is installed on the front frame body and located between the two sets of harvesting mechanisms, and the first driving mechanism is used for driving the two sets of harvesting mechanisms to move away from each other or close to each other. According to the leek harvester, the harvesting line spacing can be adjusted, the leek harvester can adapt to leek fields with various line spacing under different planting areas, planting habits and land conditions, and the applicability of the harvester is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of crop harvesting, and in particular to a leek harvester with adjustable harvesting row spacing. Background Art

[0002] In the field of leek cultivation, traditional leek harvesting methods mainly rely on manual operation, which is inefficient and labor-intensive. With the continuous development of agricultural mechanization, some leek harvesters have emerged. However, most existing leek harvesters have the problem of non-adjustable row spacing.

[0003] In actual leek cultivation, row spacing often varies due to factors such as different planting regions, planting practices, and soil conditions. Existing leek harvesters are unable to adjust to varying row spacing, significantly limiting their applicability when working with leek fields with varying row spacing. For example, in fields with narrow row spacing, existing harvesters may be unable to access and harvest; whereas in fields with wider row spacing, harvesters may experience incomplete harvesting. This not only impacts leek harvesting efficiency and quality, but also creates significant inconvenience for leek growers. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a leek harvester with adjustable harvesting row spacing, comprising:

[0005] A frame body, the frame body comprising a front frame body and a rear frame body connected to the front frame body, the front frame body comprising two mutually parallel upper front crossbeams and a lower front crossbeam distributed along a first direction, the lower front crossbeam being provided with a lower slide groove along its extension direction;

[0006] Two groups of harvesting mechanisms are distributed along a second direction on the side of the front frame away from the rear frame, each group of harvesting mechanisms includes a first connecting component with one end slidably connected to the lower slide, a cutting component is provided at the bottom of the first connecting component, and the cutting component is used to cut leeks; the second direction is perpendicular to the first direction;

[0007] The first driving mechanism is installed on the front frame and is located between the two groups of harvesting mechanisms. The first driving mechanism is used to drive the two groups of harvesting mechanisms to move away from each other or towards each other.

[0008] According to the technical solution provided in the embodiment of the present application, the first connecting assembly includes two first connecting plates arranged along the second direction, the cutting assembly is arranged at the bottom of the first connecting plate away from the driving mechanism side, and each first connecting plate is provided with a rice supporting element at the end away from the lower front cross beam. There is a first gap between the two first connecting plates, and the two rice supporting elements are used to lift the leeks so that the leeks enter the first gap.

[0009] According to the technical solution provided in the embodiment of the present application, a group of transmission mechanisms is further provided corresponding to each group of the harvesting mechanisms, and the group of transmission mechanisms includes:

[0010] Two front rollers, each of the front rollers is rotatably disposed on a side of the corresponding first connecting plate away from the cutting assembly; the rotation axis direction of the front roller is the first direction;

[0011] Two rear rollers, each of the rear rollers is rotatably disposed on the rear frame, and the two rear rollers are distributed along the first direction;

[0012] a second driving mechanism, the second driving mechanism being used to drive the rear roller to rotate with the second direction as the rotation axis direction;

[0013] A conveyor belt is connected between each front roller and the corresponding rear roller. The two conveyor belts cooperate to convey the leeks cut by the cutting assembly of the harvesting mechanism on the corresponding side to a storage box, which is installed on the side of the rear frame away from the front frame.

[0014] According to the technical solution provided in the embodiment of the present application, an upper sliding groove opposite to the lower sliding groove is provided on the upper front cross beam along its extension direction, the front roller is rotatably connected to the second connecting plate on the side away from the first connecting plate, and the second connecting plate is slidably connected to the upper sliding groove away from the side of the front roller, and the projections of the first connecting plate and the second connecting plate at both ends of the same front roller along the first direction coincide; the two first connecting plates of the harvesting mechanism in the same group are interconnected, and the two second connecting plates of the harvesting mechanism in the same group are interconnected.

[0015] According to the technical solution provided in an embodiment of the present application, the first connecting plate and the second connecting plate of a group of the harvesting mechanisms close to the first driving mechanism are connected by a third connecting plate, and the third connecting plate is connected to the first driving mechanism.

[0016] According to the technical solution provided in the embodiment of the present application, the first driving mechanism includes:

[0017] a first drive motor, the first drive motor being arranged on the upper front crossbeam;

[0018] A first screw rod, the first screw rod being a positive and negative thread screw rod, the first screw rod being connected to the output end of the first drive motor, and the first screw rod extending in the first direction; an upper nut seat for cooperating with the positive thread and a lower nut seat for cooperating with the negative thread are sleeved on the first screw rod;

[0019] Two connecting rod groups, the two connecting rod groups are arranged opposite to each other along the second direction, each connecting rod group includes two upper connecting rods and lower connecting rods hinged to each other, the hinged ends of the upper connecting rod and the lower connecting rod are connected to the third connecting plate on the corresponding side, the end of the upper connecting rod away from the lower connecting rod is hinged to the upper nut seat, and the end of the lower connecting rod away from the upper connecting rod is hinged to the lower nut seat.

[0020] According to the technical solution provided in the embodiment of the present application, the second driving mechanism includes a second driving motor installed on the rear frame, a driving wheel connected to the output end of the second driving motor, and a transmission gear connected to the end of each rear roller along its extension direction, the transmission gears connected to every two adjacent rear rollers are engaged with each other, and the rear roller close to the ground side is connected to the driving wheel belt.

[0021] According to the technical solution provided in the embodiment of the present application, the front frame and the rear frame are provided with an intermediate frame, and the intermediate frame includes two oblique beams distributed along the second direction and two bottom beams distributed along the second direction.

[0022] According to the technical solution provided in the embodiment of the present application, a mounting beam is provided between the two inclined beams, and two adjustment slots distributed along the second direction are provided on the mounting beam. A limiting cylinder extending in the first direction is slidably connected in each of the adjustment slots, and the limiting cylinder is used to limit the conveyor belt on the corresponding side.

[0023] According to the technical solution provided in the embodiment of the present application, a walking component is provided on the bottom beam.

[0024] Compared with the prior art, the present invention offers the following advantages: the leek harvester of this solution can adjust the row spacing, adapting to leek fields with various row spacings depending on different planting regions, planting habits, and soil conditions, greatly improving the harvester's applicability. It can efficiently harvest leek fields with different row spacings, avoiding situations such as inability to harvest or incomplete harvesting due to inappropriate row spacing, effectively improving leek harvesting efficiency. The harvesting mechanism can be adjusted according to the actual row spacing, ensuring precise cutting and reducing damage to the leek, thereby improving the quality of the leek harvest. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a leek harvester with adjustable harvesting row spacing provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of the frame provided in an embodiment of the present application;

[0027] Figure 3 A schematic structural diagram of a Fuhe element provided in an embodiment of the present application;

[0028] Figure 4 A schematic structural diagram of a first driving mechanism provided in an embodiment of the present application;

[0029] Figure 5 A schematic structural diagram of the conveyor belt provided in an embodiment of the present application.

[0030] The text annotations in the figure represent:

[0031] 1. Frame; 2. Storage box; 3. Upper slide; 4. Mounting seat; 5. First screw rod; 6. Third connecting plate; 7. Second connecting plate; 8. Front roller; 9. Rice-supporting element; 10. First connecting plate; 11. Connecting rod group; 12. Cutting assembly; 13. Lower slide; 14. Rear roller; 15. Transmission gear; 16. First transmission gear; 17. Belt; 18. Driving wheel; 19. Travel assembly; 20. Mounting plate; 21. Upper front crossbeam; 22. Front longitudinal beam; 23. Mounting beam; 24. Oblique beam; 25. Rear frame; 26. Bottom beam; 27. Conveyor belt; 28. Limiting cylinder; 29. ​​Lower nut seat; 30. Upper nut seat. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] Example 1

[0035] As mentioned in the background technology, in order to solve the problems in the prior art, this application proposes a leek harvester with adjustable harvesting row spacing, please refer to Figure 1 As shown, including:

[0036] Frame 1, please refer to Figure 2 As shown, the frame body 1 includes a front frame body and a rear frame body 25 connected to the front frame body. The front frame body includes two upper front cross beams 21 and a lower front cross beam parallel to each other distributed along a first direction. A lower sliding groove 13 is provided on the lower front cross beam along its extension direction.

[0037] Specifically, the frame 1 of the agricultural machine is constructed from aluminum square tubes, providing a sturdy and durable structure suitable for operation in complex environments such as leek greenhouses and farmland. The first direction is perpendicular to the ground. The upper front crossbeam 21 and the lower front crossbeam are connected by two front longitudinal beams 22.

[0038] In a preferred embodiment, the front frame and the rear frame 25 are provided with an intermediate frame, and the intermediate frame includes two oblique beams 24 distributed along the second direction and two bottom beams 26 distributed along the second direction.

[0039] In a preferred embodiment, please refer to Figure 2 As shown, a mounting beam 23 is provided between the two inclined beams 24, and two adjustment slots distributed along the second direction are provided on the mounting beam 23. A limiting cylinder 28 extending in the first direction is slidably connected in each of the adjustment slots, and the limiting cylinder 28 is used to limit the conveyor belt 27 on the corresponding side.

[0040] Specifically, two limiting cylinders 28 limit and tighten the conveyor belts 27 corresponding to the two harvesting mechanisms, respectively. This allows the vertical conveyor belts, mounted on the front rollers, to shift to a horizontal position under the action of the limiting cylinders 28, allowing the leeks to shift from a vertical position to a horizontal position until they fall into the storage bin 2. The adjustment chute is a through-grooved slot, with the limiting cylinder 28 extending through the chute and connecting to the mounting beam 23 at its top. The side of the limiting cylinder 28, facing away from the mounting beam 23, is similarly mounted on the bottom beam 26. The bottom beam 26 also has a mating chute corresponding to each adjustment chute, with the other end of the limiting cylinder 28 slidingly connected to the mating chute. The two ends of the limiting cylinder 28 are tightened with nuts. By adjusting the position of one end of the limiting cylinder 28 in the adjustment chute and the other end in the mating chute, the angle and position of the limiting cylinder 28 can be adjusted, thereby limiting and tightening the conveyor belt 27.

[0041] In a preferred embodiment, a walking assembly 19 is provided on the bottom beam 26 .

[0042] Specifically, the walking assembly 19 can adopt a wheeled structure to facilitate the harvester to move in the leek field.

[0043] Two groups of harvesting mechanisms are distributed along the second direction on the side of the front frame away from the rear frame 25, each group of harvesting mechanisms includes a first connecting component with one end slidably connected to the lower slide 13, and a cutting component 12 is provided at the bottom of the first connecting component, and the cutting component 12 is used to cut leeks; the second direction is perpendicular to the first direction;

[0044] Specifically, the cutting component 12 can adopt a structure such as a rotating blade to cut leeks.

[0045] In a preferred embodiment, please refer to Figure 3 As shown, the first connecting assembly includes two first connecting plates 10 arranged along the second direction, and the cutting assembly 12 is arranged at the bottom of the first connecting plate 10 away from the driving mechanism side. The end of each first connecting plate 10 away from the lower front cross beam is provided with a leek supporting element 9, and a first gap is provided between the two first connecting plates 10. The two leek supporting elements 9 are used to lift the leek so that the leek enters the first gap.

[0046] Specifically, the lower sliding groove 13 of the lower front crossbeam has two first sliding blocks that are slidably connected and adapted thereto, and a first connecting plate 10 is fixedly connected to each first sliding block. There are four first connecting plates 10 corresponding to the two harvesting mechanisms. Along the second direction, there are two first connecting plates 10 on the left and two first connecting plates 10 on the right. When the harvester is working, the cutting assembly 12 cuts the leeks that enter the first gap. The leeks supporting element 9 can be in the form of an arc-shaped plate structure or a paddle with elasticity. When the harvester moves forward in the leek field, the two leeks supporting elements 9 cooperate with each other to lift the leeks from the ground. The shape and angle design of the leeks supporting element 9 should be able to effectively guide the leeks into the first gap so that the cutting assembly 12 can cut them.

[0047] The first driving mechanism is installed on the front frame and is located between the two groups of harvesting mechanisms. The first driving mechanism is used to drive the two groups of harvesting mechanisms to move away from each other or towards each other.

[0048] In a preferred embodiment, please refer to Figure 5 As shown, a group of transmission mechanisms is also provided corresponding to each group of the harvesting mechanisms, and the group of transmission mechanisms includes:

[0049] Two front rollers 8, each of the front rollers 8 is rotatably disposed on a side of the corresponding first connecting plate 10 away from the cutting assembly 12; the rotation axis direction of the front rollers 8 is the first direction;

[0050] Two rear rollers 14, each of the rear rollers 14 is rotatably disposed on the rear frame 25, and the two rear rollers 14 are distributed along the first direction;

[0051] A second driving mechanism, the second driving mechanism is used to drive the rear roller 14 to rotate with the second direction as the rotation axis direction;

[0052] A conveyor belt 27 is connected between each front roller 8 and the corresponding rear roller 14. The two conveyor belts 27 cooperate to convey the leeks cut by the cutting assembly 12 of the harvesting mechanism on the corresponding side to the storage box 2. The storage box 2 is installed on the side of the rear frame 25 away from the front frame.

[0053] Specifically, the front roller 8 is connected to the first connecting plate 10 by a rotating connection component such as a bearing, and the rear roller 14 is also connected to the mounting plate 20 of the rear frame 25 in the same manner. Ensure that both the front roller 8 and the rear roller 14 can rotate freely around their rotation axes.

[0054] Specifically, a conveyor belt 27 is installed between each front roller 8 and the corresponding rear roller 14. The conveyor belt 27 can be made of rubber or other flexible and wear-resistant materials. After the cutting assembly 12 of the harvesting mechanism cuts the leeks, the leeks are transported between the two conveyor belts 27 belonging to the same harvesting mechanism, and as the two conveyor belts 27 move, they are transported to the storage box 2. The storage box 2 is installed on the side of the rear frame 25 away from the front frame to facilitate the collection and storage of the harvested leeks.

[0055] In a preferred embodiment, an upper slide groove 3 opposite to the lower slide groove 13 is provided on the upper front cross beam 21 along its extension direction, and the front roller 8 is rotatably connected to the second connecting plate 7 on the side away from the first connecting plate 10, and the second connecting plate 7 is slidably connected in the upper slide groove 3 away from the side of the front roller 8, and the projections of the first connecting plate 10 and the second connecting plate 7 at both ends of the same front roller 8 along the first direction coincide; the two first connecting plates 10 of the harvesting mechanism in the same group are interconnected, and the two second connecting plates 7 of the harvesting mechanism in the same group are interconnected.

[0056] Specifically, the second connecting plates 7 are connected to the upper front crossbeam 21 in the same manner as the first connecting plates 10 are connected to the lower front crossbeam. Similarly, there are four second connecting plates 7, two on each side. The projections of the first connecting plates 10 and second connecting plates 7 at both ends of the same front roller 8 along the first direction overlap, ensuring that the first connecting plates 10 and second connecting plates 7 in the same group can move synchronously, ensuring the stability and accuracy of the front roller 8 during movement.

[0057] Specifically, the two first connecting plates 10 of the same harvesting mechanism can be interconnected by welding, bolting, etc. to enhance the structural stability of the harvesting mechanism. Similarly, the two second connecting plates 7 of the same harvesting mechanism are also interconnected to ensure the synchronization and stability of the front roller 8 during movement.

[0058] In a preferred embodiment, the first connecting plate 10 and the second connecting plate 7 of a group of the harvesting mechanisms close to the first driving mechanism are connected by a third connecting plate 6, and the third connecting plate 6 is connected to the first driving mechanism.

[0059] Specifically, the third connecting plate 6 can be fixed to the first connecting plate 10 and the second connecting plate 7 by welding or bolting. The third connecting plate 6 is connected to the first driving mechanism, so that the first driving mechanism can drive the harvesting mechanism to adjust the row spacing through the third connecting plate 6.

[0060] In a preferred embodiment, please refer to Figure 4 As shown, the first driving mechanism includes:

[0061] A first drive motor, which is provided on the upper front crossbeam 21;

[0062] A first screw rod 5, which is a positive and negative thread screw rod, is connected to the output end of the first drive motor, and extends in the first direction; an upper nut seat 30 for cooperating with the positive thread and a lower nut seat 29 for cooperating with the negative thread are sleeved on the first screw rod 5;

[0063] Specifically, the first drive motor is mounted on the upper front crossbeam 21 via a mounting base 4. The first screw rod 5 is a positive and negative thread screw, i.e., half of the first screw rod 5 along its extension direction is a positive thread, and the other half is a negative thread. The upper nut seat 30 is mounted on the positive thread, and the lower nut seat 29 is mounted on the negative thread.

[0064] Two connecting rod groups 11, the two connecting rod groups 11 are arranged opposite to each other along the second direction, each connecting rod group 11 includes two upper connecting rods and lower connecting rods hinged to each other, the hinged ends of the upper connecting rod and the lower connecting rod are connected to the third connecting plate 6 on the corresponding side, the end of the upper connecting rod away from the lower connecting rod is hinged to the upper nut seat 30, and the end of the lower connecting rod away from the upper connecting rod is hinged to the lower nut seat 29.

[0065] In a preferred embodiment, the second driving mechanism includes a second driving motor mounted on the rear frame 25, a driving wheel 18 connected to the output end of the second driving motor, and a transmission gear 15 connected to the end of each rear roller 14 along its extension direction, the transmission gears 15 connected to every two adjacent rear rollers 14 are meshed with each other, and the rear roller 14 close to the ground side is connected to the driving wheel 18 belt 17.

[0066] Specifically, after the second drive motor is activated, it drives the driving wheel 18 to rotate. The first transmission gear 16 on the rear roller 14 closest to the ground is connected to the driving wheel 18 via a belt 17, thereby driving the rotation. The transmission gears 15 connected to each pair of adjacent rear rollers 14 mesh with each other, enabling all rear rollers 14 to rotate synchronously. The rear rollers 14 rotate in the second direction, providing power to the conveyor belt 27. During the conveyor process, the conveyor belt 27 also drives the front roller 8 through friction, thus completing the conveyor process.

[0067] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A leek harvester with adjustable harvesting row spacing, characterized in that: include: A frame (1), the frame (1) comprising a front frame and a rear frame (25) connected to the front frame, the front frame comprising two upper front crossbeams (21) and a lower front crossbeam parallel to each other and distributed along a first direction, a lower sliding groove (13) being provided on the lower front crossbeam along its extension direction; Two groups of harvesting mechanisms, the two groups of harvesting mechanisms are distributed along the second direction on the side of the front frame away from the rear frame (25), each group of harvesting mechanisms comprises a first connecting component with one end being slidably connected to the lower slide groove (13), a cutting component (12) being provided at the bottom of the first connecting component, the cutting component (12) being used for cutting leeks; the second direction is perpendicular to the first direction; The first driving mechanism is installed on the front frame and is located between the two groups of harvesting mechanisms. The first driving mechanism is used to drive the two groups of harvesting mechanisms to move away from each other or towards each other.

2. The leek harvester with adjustable harvesting row spacing according to claim 1, characterized in that: The first connecting assembly comprises two first connecting plates (10) arranged along the second direction, the cutting assembly (12) is arranged at the bottom of the first connecting plate (10) away from the driving mechanism side, and each first connecting plate (10) is provided with a leek supporting element (9) at an end away from the lower front crossbeam, a first gap is formed between the two first connecting plates (10), and the two leek supporting elements (9) cooperate to support the leek so that the leek enters the first gap.

3. The leek harvester with adjustable harvesting row spacing according to claim 2, characterized in that: The invention also includes a group of transmission mechanisms corresponding to each group of the harvesting mechanisms, wherein the group of transmission mechanisms includes: Two front rollers (8), each of the front rollers (8) is rotatably disposed on a side of the corresponding first connecting plate (10) away from the cutting assembly (12); the direction of the rotation axis of the front roller (8) is the first direction; Two rear rollers (14), each of the rear rollers (14) is rotatably disposed on the rear frame (25), and the two rear rollers (14) are distributed along the first direction; a second driving mechanism, the second driving mechanism being used to drive the rear roller (14) to rotate with the second direction as the direction of the rotation axis; A conveyor belt (27) is connected between each front roller (8) and the corresponding rear roller (14). The two conveyor belts (27) cooperate to convey the leeks cut by the cutting assembly (12) of the harvesting mechanism on the corresponding side to a storage box (2). The storage box (2) is installed on the side of the rear frame (25) away from the front frame.

4. The leek harvester with adjustable harvesting row spacing according to claim 3, characterized in that: An upper sliding groove (3) opposite to the lower sliding groove (13) is provided on the upper front cross beam (21) along its extension direction; the front roller (8) is rotatably connected to the second connecting plate (7) on the side away from the first connecting plate (10); the second connecting plate (7) is slidably connected to the upper sliding groove (3) on the side away from the front roller (8); the projections of the first connecting plate (10) and the second connecting plate (7) at both ends of the same front roller (8) along the first direction coincide; the two first connecting plates (10) of the harvesting mechanism in the same group are interconnected, and the two second connecting plates (7) of the harvesting mechanism in the same group are interconnected.

5. The leek harvester with adjustable harvesting row spacing according to claim 4, characterized in that: The first connecting plate (10) and the second connecting plate (7) on the side of a group of harvesting mechanisms close to the first driving mechanism are connected via a third connecting plate (6), and the third connecting plate (6) is connected to the first driving mechanism.

6. The leek harvester with adjustable harvesting row spacing according to claim 5, characterized in that: The first driving mechanism comprises: a first drive motor, the first drive motor being arranged on the upper front crossbeam (21); A first screw rod (5), the first screw rod (5) is a positive and negative thread screw rod, the first screw rod (5) is connected to the output end of the first drive motor, and the extension direction of the first screw rod (5) is the first direction; the first screw rod (5) is provided with an upper nut seat (30) matched with the positive thread and a lower nut seat (29) matched with the negative thread; Two connecting rod groups (11), the two connecting rod groups (11) are arranged opposite to each other along the second direction, each connecting rod group (11) includes two upper connecting rods and lower connecting rods hinged to each other, the hinged ends of the upper connecting rod and the lower connecting rod are connected to the third connecting plate (6) on the corresponding side, the end of the upper connecting rod away from the lower connecting rod is hinged to the upper nut seat (30), and the end of the lower connecting rod away from the upper connecting rod is hinged to the lower nut seat (29).

7. The leek harvester with adjustable harvesting row spacing according to claim 3, characterized in that: The second driving mechanism comprises a second driving motor mounted on the rear frame (25), a driving wheel (18) connected to the output end of the second driving motor, and a transmission gear (15) connected to the end of each rear roller (14) along its extension direction, wherein the transmission gears (15) connected to each two adjacent rear rollers (14) are meshed with each other, and the rear roller (14) close to the ground is connected to the belt (17) of the driving wheel (18).

8. The leek harvester with adjustable harvesting row spacing according to claim 3, characterized in that: The front frame and the rear frame (25) are provided with an intermediate frame, and the intermediate frame comprises two oblique beams (24) distributed along the second direction and two bottom beams (26) distributed along the second direction.

9. The leek harvester with adjustable harvesting row spacing according to claim 8, characterized in that: A mounting beam (23) is provided between the two inclined beams (24), and two adjusting chutes distributed along the second direction are provided on the mounting beam (23). A limiting cylinder (28) extending in the first direction is slidably connected in each adjusting chute, and the limiting cylinder (28) is used to limit the conveyor belt (27) on the corresponding side.

10. The leek harvester with adjustable harvesting row spacing according to claim 8, characterized in that: A walking assembly (19) is provided on the bottom beam (26).

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