A pepper picking mechanism with adjustable row spacing and a small walk-behind pepper harvester

Abstract

The present invention provides a pepper picking mechanism with adjustable row spacing and a hand-held pepper harvester, comprising a frame, a picking mechanism, and a row spacing adjustment device; the picking mechanism and row spacing adjustment device are mounted on the frame; the picking mechanism includes a hexagonal transmission shaft and at least two picking units, the hexagonal transmission shaft being connected to the picking units for stepless adjustment and perpendicular to the picking units; the picking units including picking rollers; the picking rollers of the picking mechanism are mounted on the row spacing adjustment device, the row spacing adjustment device being mounted on the frame, the frame being provided with slots perpendicular to the picking rollers at the mounting location of the row spacing adjustment device, the row spacing adjustment device being mounted in cooperation with the slots. The present invention can adjust the spacing between the picking rollers by simply adjusting the mounting position of the slots of the row spacing adjustment device on the frame, thereby adapting to the harvesting of peppers with different planting row spacings and improving the clean picking rate. The present invention also has a simple structure, high stability, convenient operation, and easy maintenance.

Description

Technical Field

[0001] The invention belongs to the field of pepper harvesters, and in particular relates to a pepper picking mechanism with adjustable row spacing and a small hand-held pepper harvester. Background Art

[0002] Chili peppers are widely favored in China for their unique flavor. They are also rich in vitamin C, with a content of 14.81-18.28 mg / 100 g. Vitamin C promotes collagen synthesis, has beauty benefits, and helps boost immunity. Besides processed chili peppers, the capsanthin and capsaicin they contain are also commonly used in the production of other products. Due to their high nutritional value and utility, they are also commonly used in the cosmetics, pharmaceutical, and healthcare industries.

[0003] While mechanized pepper harvesting has been implemented in some areas, other areas rely primarily on manual picking. Furthermore, due to slight variations in pepper row spacing across different regions, when harvesting two or more rows of peppers side by side, this variation in row spacing reduces the yield, leaving small plots facing the dilemma of "no organic material available." Manual picking is costly and inefficient, often delaying the optimal harvest period and affecting pepper quality. As the cost of manual picking continues to rise, the challenges of harvesting peppers will, to a certain extent, hinder the development of my country's pepper industry if they are not addressed.

[0004] Therefore, developing a two-row walk-behind pepper harvester with high harvesting rate, low breakage rate and adjustable row spacing that is suitable for small-field operations is a key technical issue that needs to be urgently solved in my country. Summary of the Invention

[0005] In response to the above technical problems, one of the purposes of one embodiment of the present invention is to provide a pepper picking mechanism with adjustable row spacing, which can adjust the spacing between picking rollers to adapt to the harvesting of peppers with different planting row spacings, and achieve high picking rate and low breakage rate.

[0006] One of the purposes of one embodiment of the present invention is to provide a small hand-held pepper harvester, including a frame, a picking mechanism, a row spacing adjustment device, a feeding device, a collecting device, a power device and a chassis; the present invention can adjust the slot installation position of the row spacing adjustment device on the frame, thereby adjusting the spacing between the picking rollers to adapt to the harvesting of peppers with different planting row spacings.

[0007] Note that the inclusion of these objectives does not preclude the existence of other objectives. One embodiment of the present invention does not necessarily achieve all of the above objectives. Objectives other than the above objectives may be extracted from the description of the specification, drawings, and claims.

[0008] The present invention achieves the above technical objectives through the following technical means.

[0009] A pepper picking mechanism with adjustable row spacing, comprising a frame, a picking mechanism and a row spacing adjusting device;

[0010] The picking mechanism and the row spacing adjustment device are installed on the frame; the picking mechanism includes a hexagonal transmission shaft and at least two picking units, the hexagonal transmission shaft is connected to the picking unit in an infinitely adjustable manner, and the hexagonal transmission shaft is perpendicular to the picking unit; the picking unit includes a picking roller; the picking roller of the picking mechanism is installed on the row spacing adjustment device, and the row spacing adjustment device is installed on the frame, and the frame is provided with a slot perpendicular to the picking roller at the installation position of the row spacing adjustment device, and the row spacing adjustment device is installed in cooperation with the slot hole. By changing the installation position of the row spacing adjustment device in the slot hole and performing infinitely adjustment on the hexagonal transmission shaft and the picking unit, the spacing between the picking rollers is adjusted.

[0011] In the above solution, the row spacing adjustment device includes a first bearing seat, a second bearing seat mounting frame and a second bearing seat;

[0012] The first bearing seat and the second bearing seat mounting frame are respectively arranged on the frame, and one end of the picking roller is mounted on the first bearing seat; the frame is provided with a slot hole perpendicular to the picking roller at the mounting position of the first bearing seat; the second bearing seat mounting frame is provided with a gasket parallel to the picking roller; the second bearing seat is arranged on the second bearing seat mounting frame; the other end of the picking roller is mounted on the second bearing seat.

[0013] Furthermore, the picking unit also includes a universal joint coupling and a right-angle gearbox; the gears of the right-angle gearbox are connected to the hexagonal drive shaft in an infinitely adjustable manner; one end of the universal joint coupling is connected to the right-angle gearbox, and the other end is connected to the picking roller.

[0014] In the above solution, the picking roller is a comb-finger spiral picking roller or a hollow spiral picking roller.

[0015] In the above solution, the comb-finger spiral picking roller includes a central shaft and comb fingers. Two rows of spirally distributed comb fingers are provided on the central shaft, and the comb finger spacing between the comb fingers is 20 mm.

[0016] A small walk-behind pepper harvester including a pepper picking device with adjustable row spacing, further comprising a feeding device, a collecting device, a power device and a chassis;

[0017] The chassis is arranged at the bottom of the frame; the feeding device is arranged on both sides of the picking mechanism; the collecting device is arranged behind the picking mechanism; the power device is arranged at the rear end of the frame and connected to the chassis; and an armrest is provided at the rear of the frame.

[0018] In the above scheme, the feeding device includes an unpowered roller, a transmission belt, an intermediate roller, a tensioning wheel, a tensioning wheel mounting plate, a power roller, a conveying device coupling and a conveying device drive shaft; the unpowered roller is arranged at the bottom of the front end of the frame; the intermediate roller is arranged on the frame; the power roller is arranged on the top of the frame and connected to the power device; the transmission belt is arranged on the frame through the unpowered roller, the intermediate roller and the power roller, the tensioning wheel mounting plate is arranged on the frame, and the tensioning wheel is arranged on the tensioning wheel mounting plate and in contact with the transmission belt.

[0019] In the above scheme, the collection device includes a collection box, a spiral auger and a material support plate. The spiral auger is arranged behind the feeding device, and spiral blades with opposite directions are provided on both sides of the spiral auger; the collection box is arranged below the spiral auger; the material support plate is arranged below the discharge port of the collection box, and several material bag fixing devices are provided at the discharge port of the collection box.

[0020] In the above scheme, the power device includes an engine, a driven sprocket, a feed device sprocket, a collection device sprocket, a driving sprocket, a driven pulley, a driving pulley, a feed device driving sprocket and a V-belt;

[0021] The engine output shaft is connected to the driving pulley, the driving pulley is connected to the driven pulley through a V-belt; the driven pulley is connected to the driving sprocket, the driving sprocket is connected to the driven sprocket, and the driven sprocket is connected to the picking mechanism;

[0022] The driven sprocket is also connected to the driving sprocket of the feeding device, the driving sprocket of the feeding device is connected to the feeding device sprocket and the collecting device sprocket, the feeding device sprocket is connected to the feeding device, and the collecting device sprocket is connected to the collecting device.

[0023] In the above solution, auxiliary wheels are provided at the bottom of the front end of the frame, and the auxiliary wheels are connected to the chassis through a three-point suspension device.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The picking rollers of the present invention's adjustable row-spacing pepper picking mechanism are mounted on bearing blocks located perpendicular to slots on a frame. The present invention adjusts the spacing between the picking rollers simply by adjusting the slots on the frame, adapting to the harvest of peppers with varying row spacings and improving the clean harvest rate. The present invention's row-spacing adjustment mechanism has a simple structure on the frame, high stability, ease of operation, high reliability, and ease of maintenance.

[0026] The present invention discloses a small hand-held pepper harvester, which can harvest peppers with different planting row spacings and improve the picking rate by adjusting the picking width of a pair of picking rollers. The machine has a simple structure and high stability, and can meet the harvesting needs in different planting environments.

[0027] Note that the description of these effects does not preclude the existence of other effects. One embodiment of the present invention does not necessarily have all of the above effects. Effects other than the above can be clearly seen and extracted from the description of the specification, drawings, claims, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a pepper picking device with adjustable row spacing according to one embodiment of the present invention.

[0029] Figure 2 It is a schematic structural diagram of a row spacing adjustment device and a picking mechanism according to one embodiment of the present invention.

[0030] Figure 3 Schematic diagram of a comb-finger spiral picking roller according to one embodiment of the present invention.

[0031] Figure 4 Schematic diagram of a hollow spiral picking roller according to one embodiment of the present invention.

[0032] Figure 5 It is a left view of a small walk-behind pepper harvester according to one embodiment of the present invention.

[0033] Figure 6 It is a top view of a small walk-behind pepper harvester according to one embodiment of the present invention.

[0034] Figure 7 It is a right view of a small walk-behind pepper harvester according to one embodiment of the present invention.

[0035] Figure 8 It is a structural diagram of a hexagonal transmission shaft and a right-angle gearbox according to one embodiment of the present invention.

[0036] In the figure: 1. Frame; 2. Picking mechanism; 3. Row spacing adjustment device; 4. Feeding device; 401. Unpowered roller; 402. Conveyor belt; 403. Intermediate roller; 404. Tensioning wheel mounting plate; 405. Tensioning wheel; 406. Power roller; 407. Third bearing seat; 5. Collecting device; 6. Power unit; 7. Material support frame; 8. Three-point suspension device; 9. Auxiliary wheel; 10. Chassis; 11. Comb-type spiral picking roller; 12. First bearing seat; 13. Universal joint coupling; 14. Right-angle gearbox; 15. Hexagonal drive shaft; 17. Second bearing seat mounting Mounting frame; 18. Second bearing seat; 19. Middle conveyor belt; 20. Side conveyor belt; 21. Conveyor device coupling; 22. Conveyor device drive shaft; 23. Auger; 24. Aggregate box; 25. Material bag fixing device; 26. Driven sprocket; 27. Feeding device sprocket; 28. Feeding device sprocket; 29. ​​Driving sprocket; 30. Driven pulley; 31. Driving pulley; 32. Feeding device driving sprocket; 33. V-bag; 34. Chain; 35. Feeding device chain; 36. Grain divider; 37. Picking width; 38. Picking row spacing; 39. Hollow spiral picking roller. DETAILED DESCRIPTION

[0037] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "up", "down", "axial", "radial", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. Example

[0040] Figure 1 The figure shows a preferred embodiment of the pepper picking mechanism with adjustable row spacing, which includes a frame 1, a picking mechanism 2 and a row spacing adjustment device 3;

[0041] The picking mechanism 2 and the row spacing adjustment device 3 are installed on the frame 1;

[0042] The picking rollers of the picking mechanism 2 are mounted on a row spacing adjustment device 3 , and the row spacing adjustment device 3 is mounted on a frame 1 . The frame 1 is provided with a slot perpendicular to the picking rollers at the mounting position of the row spacing adjustment device 3 .

[0043] like Figure 3 and Figure 4 As shown, according to this embodiment, preferably, the picking roller is a comb-finger spiral picking roller 11 or a hollow spiral picking roller 39. The comb-finger spiral picking roller 11 is mainly used to harvest dried peppers such as chili peppers, string peppers, and flat peppers. The hollow spiral picking roller 39 is mainly used to harvest fresh peppers.

[0044] like Figure 3 As shown, according to this embodiment, preferably, the comb-finger spiral picking roller 11 includes a central axis 1101 and comb fingers 1102, and two rows of spirally distributed comb fingers 1102 are provided on the central axis 1101. The comb finger spacing 1103 between the comb fingers 1102 is 20 mm, which is suitable for most pepper fruits, can improve the pepper fruit picking rate, and reduce the impurity rate.

[0045] like Figure 2 As shown, the row spacing adjustment device 3 includes a first bearing seat 12, a second bearing seat mounting frame 17 and a second bearing seat 18;

[0046] The first bearing seat 12 and the second bearing seat mounting frame 17 are arranged on the frame 1, and the direction from the first bearing seat 12 to the second bearing seat mounting frame 17 is parallel to the picking roller; the frame 1 is provided with a slot hole perpendicular to the picking roller at the installation position of the first bearing seat 12; the second bearing seat mounting frame 17 is provided with a gasket parallel to the picking roller; the second bearing seat 18 is provided on the second bearing seat mounting frame 17.

[0047] According to this embodiment, preferably, the second bearing seat 18 adopts a narrow-foot outer spherical bearing seat, which is connected to the second bearing seat mounting frame 17 by screws, and a gasket parallel to the picking roller and vertical is provided at the connection.

[0048] The picking mechanism 2 includes a hexagonal transmission shaft 15 and at least two picking units, wherein the hexagonal transmission shaft 15 is connected to the picking units and is perpendicular to the picking units;

[0049] The picking unit includes a picking roller, a universal joint coupling 13 and a right-angle gearbox 14; the right-angle gearbox 14 is connected to the hexagonal drive shaft 15 for stepless adjustment; one end of the universal joint coupling 13 is connected to the right-angle gearbox 14, and the other end is connected to the picking roller; one end of the picking roller is installed through the first bearing seat 12, and the other end is installed through the second bearing seat 18.

[0050] According to this embodiment, preferably, four picking units are included, which are divided into two picking units on the left and two picking units on the right. The hexagonal transmission shafts 15 of the two picking units on the left and the hexagonal transmission shafts 15 of the two picking units on the right are connected through a universal joint coupling.

[0051] like Figure 8 As shown, the hexagonal drive shaft 15 is connected to the right-angle gearbox 14 of the picking unit, and the hexagonal drive shaft 15 is perpendicular to the picking roller. The hexagonal drive shaft 15 can pass through the input shaft hole of the right-angle gearbox 14 and move along the axial direction in its through hole, and provide power for the output shaft of the right-angle gearbox 14.

[0052] According to this embodiment, preferably, a straw divider 36 is provided in front of the picking mechanism 2 .

[0053] When harvesting peppers in rows, the center distance between a pair of picking rollers 11 is the picking width 37, and the centers of two adjacent pairs of comb-finger spiral picking rollers 11 are the picking row distance 38.

[0054] like Figure 2 As shown, the row spacing adjustment is implemented as follows: under the condition that the left hexagonal drive shaft 15 and the right hexagonal drive shaft 15 are fixed, the four right-angle gearboxes 14 can be adjusted on the frame 1 with slots, and the first bearing seat 12 installed on the upper end of the picking roller 11 connected to the right-angle gearbox 14 can be adjusted on the slots of the corresponding frame 1. There is an adjustment gasket between the narrow-legged outer spherical bearing seat installed at the lower end of the picking roller and the second bearing seat mounting bracket 17, and the corresponding distance adjustment is achieved by adjusting the gasket. By moving the first bearing seat 12 and the second bearing seat 18 at the upper and lower ends of the picking roller in the direction of the hexagonal drive shaft 15, the picking width 37 and the picking row spacing 38 can be adjusted. According to this embodiment, preferably, each picking unit moves -20 to 20 mm in the direction of the hexagonal drive shaft.

[0055] The present invention adjusts the picking width 37 and the picking row spacing 38 by simply adjusting the slotted mounting position of the row spacing adjustment device 3 on the frame 1, thereby adapting to the harvest of peppers with different planting row spacings and improving the clean picking rate. Furthermore, the row spacing adjustment device of the present invention has a simple structure on the frame, high stability, convenient operation, high reliability, and easy maintenance. Example

[0056] like Figure 1 As shown, a small walk-behind pepper harvester including a pepper picking device with adjustable row spacing also includes a feeding device 4, a collecting device 5, a power device 6 and a chassis 10;

[0057] The chassis 10 is arranged at the bottom of the frame 1; the feeding device 4 is arranged on both sides of the picking mechanism 2; the collecting device 5 is arranged below the rear end of the picking mechanism 2; the power device 6 is arranged at the rear end of the frame 1 and connected to the chassis 10; and an armrest is provided at the rear of the frame 1.

[0058] like Figure 5 and Figure 6 As shown, the feeding device 4 includes an unpowered roller 401, a transmission belt 402, an intermediate roller 403, a tensioning wheel 405, a tensioning wheel mounting plate 404, a power roller 406, a conveying device coupling 21 and a conveying device drive shaft 22; the unpowered roller 401 is arranged at the bottom of the front end of the frame 1; the intermediate roller 403 is arranged on the frame 1; the power roller 406 is arranged at the top of the frame 1 and is connected to the power device 6 through the conveying device drive shaft 22; the transmission belt 402 is arranged on the frame 1 through the unpowered roller 401, the intermediate roller 403 and the power roller 406, the tensioning wheel mounting plate 404 is arranged on the frame 1, and the tensioning wheel 405 is arranged on the tensioning wheel mounting plate 404 and contacts with the transmission belt 402.

[0059] According to this embodiment, the conveyor belt 402 preferably includes a middle conveyor belt 19 and a side conveyor belt 20. A baffle is provided on the outside of the side conveyor belt 20 to prevent the peppers from being thrown outside the conveyor belt. The power rollers 406 on adjacent conveyor belts 402 are connected by a conveyor coupling 21.

[0060] According to this embodiment, preferably, the tensioning wheel 405 is arranged on the key slot of the tensioning wheel mounting plate 404. By moving the tensioning wheel 405 on the key slot of the tensioning wheel mounting plate 404, the conveyor belt can be tensioned. The power roller 406 is installed on the adjustment hole position on the frame 1 through the third bearing seat 407. By moving the third bearing seat 407 on the adjustment hole position, the throwing angle during the transportation of peppers can be adjusted, which can effectively reduce the loss rate of peppers during the transportation process; the power rollers 406 of adjacent conveyor belts 402 are connected through the conveying device coupling 21.

[0061] The collecting device 5 includes a collecting box 24, a spiral auger 23 and a material support plate 7. The spiral auger 23 is arranged behind the feeding device 4, and spiral blades in opposite directions are provided on both sides of the spiral auger 23. According to this embodiment, preferably, left spiral blades and right spiral blades are provided on both sides of the spiral auger 23, and the material is transported to the feeding ports on both sides of the spiral auger through the rotation of the axis of the spiral auger 23, and the design of the spiral auger can effectively reduce the problem of transmission blockage of peppers in the spiral auger; the collecting box 24 is arranged below the spiral auger 23; the material support plate 7 is arranged below the discharge port of the collecting box 24, and several material bag fixing devices 25 are provided at the discharge port of the collecting box 24. The material support frame 7 and the material bag fixing device 25 fix the harvested peppers together, and the bottom of the material bag is connected to the material bag support frame 7, which ensures the stability of the material bag during the operation of the pepper harvester.

[0062] like Figure 7 As shown, the power device 6 includes an engine, a driven sprocket 26, a feed device sprocket 27, a collection device sprocket 28, a driving sprocket 29, a driven pulley 30, a driving pulley 31, a feed device driving sprocket 32 ​​and a V-belt 33;

[0063] The engine output shaft is connected to the driving pulley 31, and the driving pulley 31 is connected to the driven pulley 30 through a V-belt 33; the driven pulley 30 is connected to the driving sprocket 29, the driving sprocket 29 is connected to the driven sprocket 26, and the driven sprocket 26 is connected to the picking mechanism 2;

[0064] The driven sprocket 26 is also connected to the feeding device driving sprocket 32, the feeding device driving sprocket 32 ​​is connected to the feeding device sprocket 27 and the collecting device sprocket 28, the feeding device sprocket 27 is connected to the feeding device 4, and the collecting device sprocket 28 is connected to the collecting device 5.

[0065] The sprocket 27 of the feeding device can achieve a small range of tensioning of the chain 35 by adjusting the adjustment hole position of the bearing seat 407 of the power roller.

[0066] Auxiliary wheels 9 are provided at the bottom of the front end of the frame 1, and the auxiliary wheels 9 are connected to the chassis 10 via a three-point suspension device 8. According to this embodiment, preferably, the connection between the three-point suspension device 8 and the frame 1 is fixed by a pin.

[0067] The working process of the small hand-held pepper harvester of the present invention is as follows: before the start of pepper harvesting, the pepper picking row spacing 38 and the picking width 37 are adjusted by the row spacing adjustment device 3 to adapt to the planting conditions of the peppers to be harvested; during the pepper harvesting process, the bottom power device 6 transmits power to the picking mechanism 2, the feeding device 4 and the collecting device 5 through the transmission device, and the pepper plants pass through the dividing grain 36 and enter the picking rollers. A pair of picking rollers rotate outward at the same speed. As the pepper harvester moves, the combing fingers on the picking rollers begin to comb and brush the pepper plants, and the combed plants are brushed down. The incoming peppers will be thrown onto the middle conveyor belt 19 and the side conveyor belt 20 as the picking rollers rotate. A baffle is provided on the outside of the side conveyor belt 20 to prevent the peppers from being thrown outside the conveyor belt. The picked pepper fruits are transported to the collecting device 5 through the middle conveyor belt 19 and the side conveyor belt 20. The pepper fruits are transported to the feeding ports on both sides by the rotation of the spiral auger 23. The pepper fruits fall into the material bag through the feeding port. After a period of picking, the material bag is filled with peppers. The pepper fruits are removed from the material bag fixing device 25 and the support frame 7, and a new material bag is put on.

[0068] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0069] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pepper picking mechanism with adjustable row spacing, characterized in that: It comprises a frame (1), a picking mechanism (2) and a row spacing adjustment device (3); The picking mechanism (2) and the row spacing adjustment device (3) are mounted on the frame (1); the picking mechanism (2) comprises a hexagonal transmission shaft (15) and at least two picking units, the hexagonal transmission shaft (15) is connected to the picking units in an infinitely adjustable manner, and the hexagonal transmission shaft (15) is perpendicular to the picking units; the picking units comprise picking rollers, the picking rollers of the picking mechanism (2) are mounted on the row spacing adjustment device (3), the row spacing adjustment device (3) is mounted on the frame (1), and the frame (1) is provided with a slot perpendicular to the picking roller at a location where the row spacing adjustment device (3) is mounted, and the row spacing adjustment device (3) is mounted in cooperation with the slot; The row spacing adjustment device (3) comprises a first bearing seat (12), a second bearing seat mounting frame (17) and a second bearing seat (18); The first bearing seat (12) and the second bearing seat mounting frame (17) are respectively arranged on the frame (1), and one end of the picking roller is mounted on the first bearing seat (12); the frame (1) is provided with a slot hole perpendicular to the picking roller at the mounting position of the first bearing seat (12); the second bearing seat mounting frame (17) is provided with a gasket parallel to the picking roller; the second bearing seat (18) is arranged on the second bearing seat mounting frame (17); the other end of the picking roller is mounted on the second bearing seat (18); The picking unit further comprises a universal joint coupling (13) and a right-angle gear box (14); the gears of the right-angle gear box (14) are connected to the hexagonal transmission shaft (15) in an infinitely adjustable manner; one end of the universal joint coupling (13) is connected to the right-angle gear box (14), and the other end is connected to the picking roller; A straw divider (36) is provided in front of the picking mechanism (2).

2. The pepper picking mechanism with adjustable row spacing according to claim 1, characterized in that: The picking roller is a comb-finger spiral picking roller (11) or a hollow spiral picking roller (39).

3. The pepper picking mechanism with adjustable row spacing according to claim 2, characterized in that: The comb finger spiral picking roller (11) comprises a central shaft (1101) and comb fingers (1102), wherein two rows of spirally distributed comb fingers (1102) are provided on the central shaft (1101), and the comb finger spacing (1103) between the comb fingers (1102) is 20 mm.

4. A small walk-behind pepper harvester comprising the pepper picking mechanism with adjustable row spacing according to any one of claims 1 to 3, characterized in that: It also includes a feeding device (4), a collecting device (5), a power device (6) and a chassis (10); The chassis (10) is arranged at the bottom of the frame (1); the feeding device (4) is arranged on both sides of the picking mechanism (2); the collecting device (5) is arranged behind the picking mechanism (2); the power device (6) is arranged at the rear end of the frame (1) and connected to the chassis (10); and a handrail is provided at the rear of the frame (1).

5. The small walk-behind pepper harvester according to claim 4, characterized in that: The feeding device (4) comprises an unpowered roller (401), a transmission belt (402), an intermediate roller (403), an idler (405), an idler mounting plate (404), a power roller (406), a conveying device coupling (21), and a conveying device transmission shaft (22); the unpowered roller (401) is arranged at the bottom of the front end of the frame (1); the intermediate roller (403) is arranged on the frame (1); the power roller (406) is arranged at the top of the frame (1) and is connected to the power device (6) through the transmission device transmission shaft (22); the transmission belt (402) is arranged on the frame (1) through the unpowered roller (401), the intermediate roller (403), and the power roller (406); the idler mounting plate (404) is arranged on the frame (1); the idler (405) is arranged on the idler mounting plate (404) and is in contact with the transmission belt (402).

6. The small walk-behind pepper harvester according to claim 4, characterized in that: The material collecting device (5) comprises a material collecting box (24), a spiral auger (23) and a material support plate (7); the spiral auger (23) is arranged behind the feeding device (4), and spiral blades with opposite directions are provided on both sides of the spiral auger (23); the material collecting box (24) is arranged below the spiral auger (23); the material support plate (7) is arranged below the discharge port of the material collecting box (24), and a plurality of material bag fixing devices (25) are provided at the discharge port of the material collecting box (24).

7. The small walk-behind pepper harvester according to claim 4, characterized in that: The power device (6) includes an engine, a driven sprocket (26), a feed device sprocket (27), a collection device sprocket (28), a driving sprocket (29), a driven pulley (30), a driving pulley (31), a feed device driving sprocket (32) and a V-belt (33); The engine output shaft is connected to a driving pulley (31), the driving pulley (31) is connected to a driven pulley (30) via a V-belt (33); the driven pulley (30) is connected to a driving sprocket (29), the driving sprocket (29) is connected to a driven sprocket (26), and the driven sprocket (26) is connected to a picking mechanism (2); The driven sprocket (26) is also connected to the feeding device driving sprocket (32), the feeding device driving sprocket (32) is connected to the feeding device sprocket (27) and the collecting device sprocket (28), the feeding device sprocket (27) is connected to the feeding device (4), and the collecting device sprocket (28) is connected to the collecting device (5).

8. The small walk-behind pepper harvester according to claim 4, characterized in that: An auxiliary wheel (9) is provided at the bottom of the front end of the frame (1), and the auxiliary wheel (9) is connected to the chassis (10) via a three-point suspension device (8).

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