Thread pepper harvester

Abstract

The utility model discloses a line pepper harvester. The line pepper harvester comprises a chassis; the header is arranged at the front end of the chassis and used for harvesting line pepper plants; the first conveying mechanism is arranged on the rear side of the header so as to convey the line pepper plants harvested by the header to the chassis; the vibration separator is arranged on the chassis, is used for bearing the first conveying mechanism, is used for primary separation of the line pepper fruits and fruit seedlings, and is provided with a first seedling discharge port and a first fruit discharge port; the spiral roller is arranged on the chassis, is connected with the first seedling discharge port, is used for secondary separation of the line peppers and the fruit seedlings, and is provided with a second seedling discharge port and a second fruit discharge port; and the fruit collecting device is used for receiving the line pepper fruits discharged from the first fruit discharging opening and the second fruit discharging opening. According to the hot pepper harvester, under the condition that hot pepper fruits and fruit seedlings are effectively separated, it is ensured that the mechanical damage rate of the separated hot pepper fruits is relatively low.

Description

Technical Field

[0001] This utility model relates to a chili harvester. Background Technology

[0002] According to the industry standard JB / T 12825-2016, the fruit shape index refers to the ratio of fruit length to fruit diameter (diameter at the larger end), while long peppers are peppers with a fruit shape index greater than 8. Tomatoes are predominantly spherical, with a fruit shape index of around 1. In other words, tomato harvesters are suitable for harvesting round peppers but not for long peppers. This is because, during the harvesting of nearly spherical fruits such as tomatoes and round peppers, the separation of the fruit from the vine is achieved by the vibration of a vibrating roller at a given frequency during its rotation. The vibrating roller is covered with vibrating fingers (also known as spring teeth). These vibrating fingers propel the vine backward while simultaneously shaking the relatively heavier spherical fruit off the vine, thus separating the fruit from the vine.

[0003] Correspondingly, a bottom grid is provided below the vibrating roller. Under the support of the bottom grid and the agitation of the vibrating fingers, the vines are pushed onto the vine conveyor belt, while the fruits fall through the bottom grid onto the fruit conveyor belt. The bottom grid consists of several circular grid strips with an arc-shaped comb-like structure, fixed at one end and suspended at the other, serving to support the vines.

[0004] This structure, derived from tomato harvesters, can separate nearly spherical fruits such as tomatoes and round peppers. However, when harvesting linear peppers such as chili peppers, the linear peppers are difficult to separate from the vines because the fruits are similar in shape to the vines and the peppers themselves are relatively light. Increasing the vibration frequency and amplitude of the vibrating separator may lead to a higher rate of mechanical damage to the fruits. Therefore, the separation structure needs to be improved to adapt to the separation of linear peppers.

[0005] At the same time, relying solely on the combination of the vibrating roller and the bottom grid of the vibrating separator can only separate the relatively mature pepper fruits from the vines. In other words, a large number of pepper fruits will still remain after the vines pass through the vibrating separator station. Therefore, the vines need to enter the next station in order to fully separate the stringy peppers from the vines.

[0006] Currently, there exists an independently configured device for separating chili pepper fruits from vines: a spiral roller. This device effectively separates the fruits from the vines. Its principle is similar to a screw conveyor; the spiral rotor moves the vines axially along the cylinder, and centrifugal force and friction against a grid at the bottom of the cylinder separate the pepper fruits. Compared to vibratory separators, this method has a relatively strong separation capacity, but it also increases mechanical damage to the pepper fruits (mechanical breakage rate, required to be below 2%). It should be noted that more mature pepper fruits are easier to detach, but their resistance to mechanical damage is lower; conversely, less mature fruits are less likely to detach and have higher resistance to mechanical damage. Simply using a spiral roller with strong separation capacity can easily lead to an excessively high rate of mechanical damage to the pepper fruits. Utility Model Content

[0007] The purpose of this invention is to provide a linear chili harvester that ensures a relatively low rate of mechanical damage to the separated chili fruits while effectively separating them from the vines.

[0008] According to an embodiment of the present invention, a chili pepper harvester is provided, comprising:

[0009] Chassis;

[0010] The cutting platform, located at the front of the chassis, is used for harvesting chili pepper plants.

[0011] The first conveying mechanism is located behind the cutting platform to convey the chili pepper plants harvested by the cutting platform onto the chassis.

[0012] A vibrating separator, mounted on a chassis, is connected to the first conveying mechanism and is used for the one-time separation of chili pepper fruits from the vines. It has a first row of vine openings and a first row of fruit openings.

[0013] A spiral roller, mounted on a chassis and receiving the first row of seedling openings, is used for secondary separation of the chili peppers and the fruiting vines. The spiral roller also has a second row of seedling openings and a second row of fruiting openings.

[0014] The fruit collecting device is used to collect the chili pepper fruits discharged from the first and second rows of fruit openings.

[0015] Optionally, the vibrating separator and the spiral roller are arranged longitudinally on the chassis;

[0016] Accordingly, the fruit collecting device includes a second conveying mechanism located below the vibrating separator and the spiral roller.

[0017] Optionally, the fruit collecting device further includes a third conveying mechanism arranged in parallel with the second conveying mechanism, and a transverse conveying mechanism for transferring the fruit from the second conveying mechanism to the third conveying mechanism, wherein the second conveying mechanism conveys backward and the third conveying mechanism conveys forward.

[0018] There is a height difference between the end of the second conveying mechanism and the receiving end of the transverse conveying mechanism, so as to form a fruit curtain when the transverse conveying mechanism receives the material;

[0019] Accordingly, a fan is also provided on the chassis, with the fan's outlet directed toward the fruit curtain to blow out impurities from the fruit.

[0020] Optionally, the fruit collecting device has a fruit compartment and / or a lifting unloading boom.

[0021] Optionally, the first conveying mechanism includes:

[0022] Cutting platform;

[0023] A header conveyor belt, mounted on the header frame, feeds the harvested chili pepper plants diagonally upwards and backwards; and

[0024] The seedling pressing device is located in the middle or upper part of the rear section of the cutting platform conveyor belt to feed the chili peppers to the material inlet of the vibrating separator at a given material thickness.

[0025] Optionally, the seedling pressing device is a seedling pressing conveyor belt, and a seedling pressing space is formed between the lower surface of the seedling pressing conveyor belt and the upper surface of the cutting platform conveyor belt.

[0026] Optionally, the pressing space gradually decreases from front to back, and the pressing conveyor belt and the cutting platform conveyor belt rotate in opposite directions.

[0027] Optionally, the vibration separator includes:

[0028] A vibrating roller is mounted on the chassis via a corresponding mounting base, and vibrating fingers are distributed on the vibrating roller.

[0029] The bottom grid of the vibrating separator includes grid bars, an inlet-side fixing part, and an outlet-side fixing part; wherein, a plurality of the grid bars are arranged in a predetermined direction at a predetermined interval, and the working surface of the grid bars is provided with at least one protrusion that arches towards the vibrating drum and avoids the vibrating finger; the inlet-side fixing part is used to fix one end of the grid bar; the outlet-side fixing part is used to fix the other end of the grid bar;

[0030] The vibrator is installed at one end of the vibrating drum;

[0031] The vibrating separator bottom grid and the vibrating drum form a material channel, with one end of the material channel serving as a material inlet for receiving the first conveying mechanism and the other end serving as a material outlet for feeding the spiral roller; the separated chili pepper fruits fall onto the fruit collection device through the vibrating separator bottom grid.

[0032] Optionally, the grid bars are divided into several groups;

[0033] Accordingly, each set of grid bars is equipped with independent outlet-side fixing parts and inlet-side fixing parts.

[0034] Optionally, each set of grid bars may have two or three grid bars.

[0035] Optionally, at least one group with two grid strips may be included.

[0036] Optionally, the inlet-side fixing part and the outlet-side fixing part are plate-type fixing parts;

[0037] The corresponding grating strips are welded onto the corresponding inlet-side fixing parts and outlet-side fixing parts.

[0038] Optionally, the fixing holes on the plate fixing part are elongated holes extending in the extension direction of the grid strip.

[0039] Optionally, the protrusion is an arc-shaped or V-shaped part formed by bending a rod, and the two ends of the protrusion are fixed to the corresponding grid strips.

[0040] The V-angle of the protrusion that constitutes the V-shaped part is 60°~150°;

[0041] The height of the protrusion is 22% to 27% of the radial length of the vibrating separator.

[0042] Optionally, the number of protrusions on each grille bar shall not exceed five or five pairs;

[0043] When the protrusions are arranged in pairs, the two protrusions are symmetrical about the mid-plane of the grid bar axis; the mid-plane is normal to the axis of the vibrating separator; the included angle between the paired protrusions is less than or equal to 15°.

[0044] If the protrusions are evenly arranged in the extension direction of the grid strip, all the protrusions are arranged in a sequentially spaced manner with their left and right middle surfaces coplanar with the middle surface, or with one of them skewed to one side of the middle surface and the other skewed to the other side of the middle surface.

[0045] Optionally, the spiral roller includes:

[0046] The cylinder body forms a tubular structure, with one end being the feed end and the other end being the discharge end. The lower part of the cylinder wall forms a mesh bottom to allow the separated chili pepper fruits to fall through.

[0047] A helical rotor has a spindle and a helix mounted on the spindle. The pitch of the helix gradually increases from the feed end to the discharge end, forming a variable pitch section. The axis of the helical rotor is collinear with the axis of the cylinder, and both ends are mounted on a chassis via bearing seats.

[0048] A spiral roller motor is mounted on a chassis and outputs power to drive the spiral rotor.

[0049] Optionally, the cylinder has two parallel spiral rotors, with each rotor corresponding to one of the cylinders.

[0050] Optionally, it also includes a feed roller disposed on the front side of the feed end.

[0051] Optionally, the variable pitch section constitutes a leading helical blade, and the remaining helices are formed by a helical rod and a support rod for fixing the helical rod to a mandrel.

[0052] Optionally, the length of the leading helical blade is 10.5% to 14.2% of the axial length of the helix.

[0053] Optionally, the screw rod has triangular or U-shaped protrusions distributed on the centrifugal side of the screw;

[0054] The height of the protrusion is one-seventh to one-fifth of the major diameter of the screw rod;

[0055] The distribution density of the protrusions on the corresponding helical rod is 3 to 5 per meter, and the length of the helical rod in this distribution density is the dimension along the axial direction of the helical roller.

[0056] Optionally, the end of the leading helical blade is rounded, has a cylindrical lip, or is welded with a cylindrical protective rigid strip.

[0057] Optionally, the pitch of the leading helical blade at the front is 550mm~650mm, and the pitch at the rear is 1900mm~2300mm;

[0058] Correspondingly, the helix angle at the front of the leading helical blade is 73°~75°, and the helix angle at the rear is 40°~46°;

[0059] The pitch of the screw rod is 5750mm~6250mm, which is a constant pitch screw, and the helix angle of the screw rod is 12.2°~12.6°.

[0060] Optionally, the major diameter of the leading helical blade is larger than the major diameter of the screw rod, and the difference between the major diameters of the leading helical blade and the screw rod is one-sixth to one-third of the major diameter of the screw rod.

[0061] Optionally, the spiral is a three-ended spiral or a two-ended spiral.

[0062] Optionally, the portion with the mesh bottom and the rest of the cylinder body are separate parts, wherein the portion with the mesh bottom constitutes a fixed mesh bottom assembly, and the rest constitutes a cylinder cover;

[0063] Accordingly, the cylindrical cover has a hinge on one side and a fixing part on the other side, so that when the fixing part is released, the cylindrical cover can be lifted on one side with the hinge as the axis.

[0064] Optionally, the shroud has multiple segments;

[0065] Accordingly, each segment has an independent fixing part.

[0066] Optionally, the fixing part is a snap-on fixing part.

[0067] As described in the background section, current chili harvesters typically utilize either a vibrating separator or a spiral roller. The former is more suitable for harvesting spherical chilies with relatively high maturity, while the latter, due to its strong separation capability, can be used for harvesting stringy chilies, but it results in a relatively high rate of mechanical damage. Therefore, in this embodiment of the invention, both separation devices are arranged on the same stringy chili harvester. The vibrating separator is placed at the primary separation station to separate easily separable and relatively mature stringy chilies. The spiral roller is placed at the secondary separation station to further feed the less mature plants from the vibrating separator, which are less prone to mechanical damage, into the spiral roller. Utilizing the relatively high separation rate of the spiral roller, the remaining stringy chilies after the primary separation are separated. By combining these two separation devices for separating chili fruits and vines, the balance between separation rate and mechanical damage rate is addressed collaboratively, ensuring that the mechanical damage rate of the harvested stringy chilies remains within a specified range while achieving effective separation. Attached Figure Description

[0068] Figure 1 This is a schematic diagram of the right-side structure of a chili harvester in one embodiment.

[0069] Figure 2 This is a schematic diagram of the right side of the fruit collection device in one embodiment.

[0070] Figure 3 This is a schematic diagram of the first three-dimensional structure of a chili harvester in one embodiment (left rearward view).

[0071] Figure 4 This is a schematic diagram of the second three-dimensional structure of a chili harvester in one embodiment (front right view).

[0072] Figure 5 This is a schematic diagram of a spiral roller structure with a double spiral rotor in one embodiment. A spiral roller cover is omitted in the figure.

[0073] Figure 6 This is a schematic diagram of the three-dimensional structure of a helical rotor in one embodiment.

[0074] Figure 7 This is a schematic diagram of the right view of the helical rotor structure in one embodiment.

[0075] Figure 8 This is a schematic diagram of the mesh bottom unit structure in one embodiment.

[0076] Figure 9 This is a schematic diagram of the three-dimensional structure of the shroud unit in one embodiment.

[0077] Figure 10 This is a schematic diagram of the main structure of the cylindrical cover unit in one embodiment.

[0078] Figure 11 This is a schematic diagram of the assembly structure of the bottom grid of the vibration separator on the vibration separator in one embodiment.

[0079] Figure 12 This is a left view of the assembly structure of the bottom grid of the vibration separator on the vibration separator in one embodiment.

[0080] Figure 13 This is a schematic diagram of the bottom grid structure of a vibration separator in one embodiment.

[0081] Figure 14 This is a schematic diagram of a wide-bottomed grille structure in one embodiment.

[0082] In the diagram: 1. Comb-shaped cutting platform, 2. Seedling conveyor belt, 3. Cutting platform conveyor belt, 4. Driver's cab, 5. Seedling pressing conveyor belt, 6. Vibrating separator, 7. Double spiral separating roller, 8. Star wheel bed, 9. Fruit conveyor belt, 10. Fan, 11. Transverse conveyor belt, 12. Impurity removal conveyor belt, 13. Rubber roller bed, 14. Lifting and unloading boom, 15. Forward lifting conveyor belt, 16. Chassis, 17. Blowing port, 18. Feeding roller, 19. Inlet bearing housing, 20. End cover, 21. Spiral roller cover, 22. Buckle, 23. Outlet bearing housing, 24. Motor housing, 25. Double sprocket, 26. Spiral roller motor, 27. Spindle, 28. Spiral rod, 29. Protrusion, 30. Net bottom, 31. Fastening assembly, 32. Support rod, 33. Leading spiral blade, 34. Feeding motor, 35. Inlet 36. Protective round steel bar, 37. Reinforcing round steel bar, 38. Outlet end journal, 39. Shaft head, 40. Keyway, 41. End plate, 42. Straight grid bar, 43. Arc grid bar, 44. Fixing plate, 45. Fixing hole, 46. Cylinder cover end plate, 47. Ear plate, 48. Rotating shaft, 49. Cover body, 50. Support plate, 51. Bottom grid, 52. Rotating motor, 53. Left fixed seat, 54. Barrier grid, 55. Vibrating roller, 56. Vibration mechanism, 57. Right fixed seat, 58. Material inlet, 59. Material outlet, 60. Wide bottom grid, 61. Arrangement interval, 62. Narrow bottom grid, 63. Fastening assembly, 64. Inlet side fixing hole, 65. Inlet side fixing plate, 66. Triangular barrier bar, 67. Grid bar, 68. Grid groove, 69. Outlet side fixing plate, 70. Outlet side fixing hole. Detailed Implementation

[0083] It should be understood that for equipment with a chassis 16, it often has a definite front, back, left, right, up, and down direction. Generally, the end where the front of the vehicle is located is the front end, and the opposite end is the rear end. The front and back directions determine the longitudinal direction of the chassis 16, which is also called the longitudinal direction. For example, the longitudinal beams, the front and rear of the vehicle on the chassis 16 are named in this way.

[0084] Correspondingly, the left and right sides of chassis 16 are also referred to as the lateral or width direction, and the lateral direction is also called the side direction. For example, the crossbeams and side panels of chassis 16 are named in this way.

[0085] With the front, back, left, and right directions determined, the up and down directions are also determined, also known as the height directions.

[0086] As a related explanation of the first technical issue, it should be understood that there is a standardized evaluation method for mechanical breakage rate in this field, defined in the industry standard JB / T 12825-2016, which is one of the main indicators for evaluating the performance of chili harvesters. For long chilies, using traditional chili harvesters, while meeting the requirement of efficient separation between fruit and vine, easily leads to a persistently high mechanical breakage rate (greater than 5%). Conversely, ensuring that the mechanical breakage rate of long chilies meets requirements results in significant difficulty in separating the fruit from the vine, leaving a large number of chili fruits remaining on the vine.

[0087] Among them, the simple vibration separator 6 is more suitable for spherical fruits and requires that the spherical fruits be relatively mature. Vibration can effectively separate the pepper fruits from the pepper plant (vine). For the relatively immature linear pepper fruits, the separation rate is very low.

[0088] For simple spiral rollers, such as Figure 1 The double-helix separating roller 7 shown has strong separation capacity, but it is prone to a relatively large mechanical breakage rate.

[0089] Relatively speaking, the higher the maturity of the chili pepper, the easier it is to detach from the vine, but it is also more likely to suffer mechanical damage during the separation process.

[0090] In the embodiments of this utility model, to address the first technical problem, two chili pepper separation devices are used in combination, which not only ensures the separation rate of the chili peppers but also ensures that the mechanical damage rate of the harvested chili peppers is lower than the specified value.

[0091] Regarding the chassis 16 of the chili harvester, it adopts a commonly used agricultural vehicle chassis with a relatively high ground clearance, which is common knowledge in this field and will not be elaborated here.

[0092] Furthermore, a cutting platform is installed on the front side of chassis 16, such as... Figure 1 and Figure 4 The comb-shaped cutting platform 1 shown is not an improvement of the cutting platform in the embodiments of this utility model. Those skilled in the art can choose a known cutting platform for harvesting chili plants, which will not be described in detail here.

[0093] The cutting table itself often has the ability to transport materials backward, such as... Figure 1 The header conveyor belt 3 shown is used to transport the chili pepper plants harvested by the header onto the chassis 16. In some implementations, the header transports the harvested plants to the left or right side of the chassis 16, ultimately guiding the harvested plants to one side of the chassis 16 in the direction of travel. In this embodiment of the invention, the header conveyor belt 3 is used to transport the chili pepper plants harvested by the header backward to a separation device on the chassis 16.

[0094] As mentioned above, in order to solve the first technical problem, two separation devices are used in combination. The first is a vibrating separator 6, which is set on the chassis 16 and receives the first conveying mechanism. It is used for the one-time separation of chili pepper fruits and seedlings. The vibrating separator 6 has a first row of seedling openings and a first row of fruit openings.

[0095] Another type of separation device is a spiral roller, such as Figure 1 A double-helix separating roller 7 is mounted on the chassis 16. This double-helix separating roller 7 receives the first row of seedling openings and is used for secondary separation of the chili peppers from the fruit vines. Correspondingly, the helical roller has a second row of seedling openings and a second row of fruit openings.

[0096] There is a receiving relationship between the two separation devices. The receiving here is obviously the receiving of the fruit vines, while the separated fruits can fall onto the fruit collecting device. Therefore, the fruit collecting device is used to receive the chili pepper fruits discharged from the first and second rows of fruit openings.

[0097] For example, the double-helix separating roller 7 used for the second-stage separation can discharge the seedlings directly into the harvested chili field, or they can be crushed and discharged into the chili field. Alternatively, a bundling device can be installed to bundle the seedlings and place them in the chili field for collection and use, for example, in the production of biomass fuel.

[0098] Furthermore, to facilitate the layout of, for example, fruit collecting devices, the vibrating separator 6 is... Figure 1 , Figure 3 and Figure 4 In the illustrated structure, the longitudinal arrangement of the double helical separating roller 7 on the chassis 16, i.e., the primary separation and the secondary separation are connected in the front-to-back direction and arranged along the chassis 16, results in relatively good overall stability.

[0099] Accordingly, the fruit collecting device includes a second conveying mechanism located below the vibrating separator and the spiral roller to receive the stringy peppers separated by the primary and secondary separation stations. Since the positions of the primary and secondary separation stations are fixed and arranged longitudinally on the chassis 16, the second conveying mechanism is also arranged longitudinally on the chassis 16, which is advantageous because one set of the second conveying mechanism can be used to collect and convey the stringy peppers separated by the two stations.

[0100] exist Figure 1In the illustrated structure, the component used as the second conveying mechanism is the fruit conveyor belt 9 located below the star wheel bed 8, as shown in the figure. The star wheel bed 8 is similar to a roller bed, except that star wheels are used instead of rollers. A star wheel is a gear component, and unlike the tooth profile of an involute gear, both tooth surfaces of the star wheel are concave curved surfaces, which is beneficial for conveying, for example, stems. The gaps between the star wheels in the star wheel bed 8 are relatively large, and the chili peppers fall through the gaps in the star wheel bed 8. Some stems that cannot fall through the gaps between the star wheels continue to move backward until they are discharged, for example, by the waste removal conveyor belt 12 located at the rear end of the chassis 16, or they can be discharged directly.

[0101] The chili peppers that fall through the star wheel bed 8 land on, for example, the fruit conveyor belt 9, which serves as a second conveying mechanism, and are then moved further backward.

[0102] Accordingly, when the chili pepper fruit is separated from the vine, there will be a certain impurity rate, mainly chili pepper leaves. Compared to the chili pepper, the chili pepper leaves are more easily blown away. Therefore, in a preferred embodiment, the fruit collecting device also includes a third conveying mechanism arranged in parallel with the second conveying mechanism, and a transverse conveying mechanism for transferring the fruit from the second conveying mechanism to the third conveying mechanism, wherein the second conveying mechanism conveys backward and the third conveying mechanism conveys forward.

[0103] As mentioned earlier, for example, the fruit conveyor belt 9 transports the chili peppers backward, and some chili leaves or other relatively light impurities may be mixed in with the chili peppers. Figures 1-3 The rear end of the chassis is visible, and the position of the third conveying mechanism, including the rubber roller bed 13 and the forward lifting conveyor belt 15, is lower than the rear end of the fruit conveyor belt 9. In particular, the forward lifting conveyor belt 15 first conveys the long pepper fruits wrapped with pepper leaves to the transverse conveyor roller 11. The transverse conveyor roller 11 then conveys the long pepper fruits wrapped with pepper leaves to the forward lifting conveyor belt 15. The forward lifting conveyor belt 15 lifts the long pepper fruits upward and conveys them to the rubber roller bed 13. The rubber roller bed 13 then conveys the long pepper fruits forward.

[0104] Figures 1-3 In the process, due to the aforementioned height difference, the stream of chili peppers carrying chili leaves will fall onto the transverse conveyor roller 11 in the form of a curtain.

[0105] Furthermore, such as Figure 1 and 4 As shown in the example structure, a fan 10 is also provided on the chassis 16. The air outlet 17 of the fan 10 blows towards the fruit curtain to blow out impurities in the fruit. The main component of the impurities is chili leaves. The air outlet 17 blows from front to back. The impurities such as chili leaves will be blown to the chili field to improve the fertility of the chili field.

[0106] exist Figure 3In the illustrated structure, the front and rear lifting conveyor belts 15 are arranged on the rear side of the chassis 16 so that the position of the transverse conveyor rollers 11 is relatively low. This is mainly because the space at the rear of the chassis 16 is less restricted by the frame, which facilitates the arrangement of the forward lifting conveyor belt 15 at a relatively low position, thereby making the height of the fruit curtain relatively large. Then, the forward lifting conveyor belt 15 lifts the pepper fruits to the upper side of the frame, and then the rubber roller bed 13 transports the fruits forward. Finally, the lifting unloading boom 14 unloads the pepper fruits onto the accompanying vehicle.

[0107] A fruit compartment can also be set on the frame to temporarily store the fruit, and then the pepper fruit can be unloaded onto a given transport vehicle by lifting the unloading boom 14.

[0108] Figure 2 The image shows an example including a third conveying mechanism, the fruit collecting device having a fruit compartment and / or a lifting unloading boom.

[0109] exist Figure 1 and Figure 4 In the illustrated structure, the first conveying mechanism includes:

[0110] Cutting platform;

[0111] The header conveyor belt 3, installed on the header frame, feeds the harvested chili pepper plants backward and upward at an angle; and

[0112] The seedling pressing device is located in the middle or upper part of the rear of the cutting platform conveyor belt 3 to feed the chili peppers backward to the material inlet 58 of the vibrating separator 6 at a given material thickness.

[0113] Furthermore, the seedling pressing device is a seedling pressing conveyor belt 5. The lower surface of the seedling pressing conveyor belt 5 and the upper surface of the cutting platform conveyor belt form a seedling pressing space, which is beneficial for sorting the seedlings and can directly transport the seedlings to the material inlet 58.

[0114] Furthermore, in order to more accurately deliver the seedlings to the material inlet 58, the seedling pressing space gradually decreases from front to back, and the seedling pressing conveyor belt 5 and the cutting platform conveyor belt 3 rotate in opposite directions. At this time, the running direction between the lower belt surface of the seedling pressing conveyor belt 5 and the upper belt surface of the cutting platform conveyor belt 3 is the same.

[0115] Regarding the vibration separator 6, Figure 11 and Figure 12 The illustrated structure includes:

[0116] The vibrating roller 55 is mounted on the chassis 16 via a corresponding mounting base, and vibrating fingers are distributed on the vibrating roller 55.

[0117] Vibration separator bottom grid, such as Figure 11 and Figure 12The bottom grid 51 shown includes grid bars 67, an inlet-side fixing part, and an outlet-side fixing part; wherein, a plurality of the grid bars 67 are arranged in a predetermined direction at a predetermined interval, and the working surface of the grid bars 67 is provided with at least one protrusion that arches towards the vibrating roller 55 and avoids the vibrating finger; the inlet-side fixing part is used to fix one end of the grid bar 67; the outlet-side fixing part is used to fix the other end of the grid bar 67;

[0118] vibrators, such as Figure 11 The vibration mechanism 56 shown is mounted on one end of the vibrating drum 55.

[0119] The vibrating separator bottom grid and the vibrating drum 55 form a material channel, with one end of the material channel being a material inlet 58 for receiving the first conveying mechanism and the other end being a material outlet 59 for feeding the spiral roller; the separated chili pepper fruits fall onto the fruit collection device through the vibrating separator bottom grid.

[0120] Regarding the vibrator, as shown in the figure, the vibration mechanism 56 is a mechanism containing multiple vibrating wheels. In some embodiments, a mechanism with only one vibrating wheel can also be selected. This vibrating wheel is an eccentric wheel and is coaxially arranged with the vibrating drum 55.

[0121] In the preceding text, the bottom grid 51 has protrusions on the grid bars 67 that extend towards the vibrating roller 55. Verification has shown that with these protrusions, it is easier to separate the chili pepper fruit from the vine. In contrast, known vibrating bottom grids, in order to improve the separation efficiency of chili pepper fruit from the vine, typically require the vibrating roller 55 of the vibrating separator 6 to have stronger vibration capabilities or the vibrating fingers to have stronger agitation capabilities, which may lead to a higher mechanical breakage rate of the chili pepper. However, the vibrating bottom grid based on this embodiment can effectively reduce the mechanical breakage rate of the chili pepper.

[0122] Figure 11 The diagram shows a schematic of the assembly structure of the vibrator bottom grid (hereinafter referred to as bottom grid 51) on the vibration separator 6 in one embodiment. In the diagram, the bottom grid 51 is fixed to the bottom of the vibration drum 55 of the vibration separator 6 by fixing at both ends. In this application scenario, the bottom grid 51 is a curved grid, and its axis is collinear with the axis of the vibration drum 55 under ideal conditions.

[0123] Vibrating fingers (also known as spring teeth) are distributed on the vibrating drum 55. Multiple sets of vibrating fingers are distributed on the drum body of the vibrating drum 55 in a roughly vortex manner. The sets of vibrating fingers are offset from the grid bars 67 of the bottom grid 51 in the axial direction of the vibrating drum 55. When the vibrating fingers rotate to the predetermined corner position, they can enter the grid groove 68 (also known as the gap between grid bars) of the bottom grid 51, but the amount of entry is generally small, about 1 to 1.5 times the thickness of the bottom grid.

[0124] The side of the bottom grid 51 facing the vibrating roller 55 is its working surface. In this embodiment of the invention, the working surface of the grid bars 67 of the bottom grid 51 is provided with... Figure 14 The triangular barrier strip 66 illustrated above, based on the foregoing description, is offset from the grid strip 67 in the axial direction of the vibrating drum 55. Under this condition, the vibrating finger rotating with the vibrating drum 55 will not cause motion interference with the bottom grid 51. Furthermore, the vibrating finger in the axial direction of the vibrating drum 55 is approximately located in the middle of the grid groove 68. The width of the grid groove 68 is generally much larger than the corresponding size of the vibrating finger in the axial direction of the vibrating drum 55. Therefore, it is permissible for, for example, the triangular barrier strip 66 to have a certain tilt angle relative to the plane with the axis of the vibrating drum 55 as the normal.

[0125] The axial direction of the vibrating drum 55 is the direction of the machine spokes, which is also called the left-right direction, the width direction, or the transverse direction.

[0126] Accordingly, the feeding and discharging directions determine the front and rear directions, such as... Figure 12 The side where the material inlet 58 is located is generally called the front side, and the side where the material outlet 59 is located is generally called the rear side. The front-rear direction is also called the longitudinal direction, the length direction, the head-tail direction, etc.

[0127] Figure 13 The bottom grid 51 of the vibrator has a plurality of grid bars 67. The number of grid bars 67 is unrelated to the improvements made in this invention and is a conventional configuration, which will not be described further here. Accordingly, given the number and specifications of the grid bars 67 and the vibrator's radius, Figure 14 The size of the grid groove 68 is also determined, and the size of the grid groove 68 also determines the maximum allowable tilt angle value when, for example, the triangular barrier strip 66 is set with a certain tilt angle.

[0128] Obviously, the grid bars 67 are arranged axially in the vibrator. The distance between their working surface and the axis of the vibrating drum 55 is roughly equivalent to the maximum radial extension of the vibrating fingers of the vibrating drum 55, and slightly smaller than the top circle diameter of the vibrating drum 55. This has been mentioned above and will not be repeated here.

[0129] exist Figures 11-14In the illustrated structure, the working surface of the grid bar 67 is provided with three triangular barrier bars 66, which arch towards the vibrating roller 55 of the vibrator and avoid the vibrating fingers provided on the vibrating roller 55.

[0130] Regarding, for example, the number of triangular barrier strips 66, Figure 13 and Figure 14 As can be clearly seen, each grid bar 67 is provided with three triangular barrier bars 66. The number of these bars and their shape can be related to each other. For example, when the height of the triangular barrier bars 66 is relatively low, the number of triangular barrier bars 66 can be relatively large. However, the height of the triangular barrier bars 66 should not be too large, otherwise it will cause excessive obstruction to the fruit vines, resulting in too many impurities passing through the bottom grid 51 and falling onto the star wheel bed located below the bottom grid 51 for transporting the fruit. This will be explained in detail below and will not be repeated here.

[0131] In addition, such as Figure 13 and Figure 14 As shown, both ends of the grid bar 67 have fixing parts, such as the inlet side fixing plate 65 used as the inlet side fixing part and the outlet side fixing plate 69 used as the outlet side fixing part, so as to reliably fix the bottom grid 51 and fix the relative position between the bottom grid 51 and the vibrating roller 55.

[0132] Accordingly, one end of the grid bar 67 is fixed to the inlet-side fixing part, and the other end is fixed to the outlet-side fixing part. Preferably, the grid bar 67 is fixed to the corresponding fixing part by welding.

[0133] Since the known working width (also known as the working width) of chili harvesters can reach 3.6 meters, and although there are chili harvesters with smaller working widths for small plots, their working width can still reach 2.6 meters, the width of the bottom grid 51 corresponds to the working width and has a relatively large size. Due to its relatively large size, it should be considered a large-sized component, making it difficult to guarantee dimensional accuracy and causing great inconvenience in assembly and disassembly. In particular, the mounting holes are prone to misalignment with the mounting holes on the machine body.

[0134] Furthermore, with prolonged use, the bottom grille 51 is prone to localized deformation or damage, with inaccurate alignment of the fixing holes after disassembly and reassembly being particularly prominent. Therefore, in this embodiment of the invention, the grille strips 67 are divided into several groups, i.e., the assembly unit is miniaturized. This makes it easier to ensure the dimensional accuracy of the smaller assembly units, thereby guaranteeing the assembly accuracy of the assembly units.

[0135] Because the number of mounting holes on a single assembly unit is relatively small, the assembly interference between these relatively few mounting holes is relatively small, thus ensuring greater flexibility in assembly and disassembly.

[0136] At the same time, if a single assembly unit is damaged or its deformation exceeds the tolerance, only that single assembly unit needs to be replaced or repaired.

[0137] Accordingly, such as Figure 14 As shown, each set of grid bars 67 is equipped with an independent outlet-side fixing part and an inlet-side fixing part, such as the inlet-side fixing plate 65 and the outlet-side fixing plate 69 shown in the figure, thereby forming a grid bar assembly, which constitutes the aforementioned assembly unit.

[0138] In addition, as mentioned earlier, chili harvesters have various spokes, and different bottom grids 51 are needed to adapt to different spokes. By adopting a unitized approach for the bottom grids 51, a certain number of grid bar components can be adapted to the bottom grids 51 of different spokes, thus achieving better adaptability.

[0139] The grid strip assembly that makes up a bottom grid 51 can have various specifications, and the specifications here refer to the number of grid strips 67. After verification, it has been found that using two specifications of grid strip assembly can basically meet the assembly needs of most bottom grids 51: one specification is a grid strip assembly with two grid strips 67, and the other specification is a grid strip assembly with three grid strips 67.

[0140] Furthermore, in a more specific implementation, at least one group with two grid strips 67 is included, primarily for adjusting the width of the bottom grid 51.

[0141] It should be noted that groups with two grid bars 67 generally have better adaptability. Theoretically, the fewer grid bars 67 in a grid bar assembly, the better the adaptability. Obviously, when each grid bar assembly has only one grid bar 67, it can adapt to the entire width, but this method is obviously more difficult to assemble. Using groups with three grid bars 67 as the base group and groups with fewer grid bars 67 as adjustment groups, the overall assembly difficulty is not high while having better assembly flexibility.

[0142] exist Figure 14 In the illustrated structure, both the inlet-side fixing part and the outlet-side fixing part adopt plate-type fixing parts, such as the inlet-side fixing plate 65 and the outlet-side fixing plate 69 shown in the figure. The structure is simple and the strength can be guaranteed.

[0143] The grating strip 67 and, for example, the inlet side fixing plate 65 are both made of metal materials, generally Q355 steel plate, which has good welding performance. The grating strip 67 can be fixed to the corresponding inlet side fixing part and outlet side fixing part by welding.

[0144] exist Figure 14In the illustrated structure, the inlet-side fixing plate 65 has three inlet-side fixing holes 64, and the outlet-side fixing plate 69 has three outlet-side fixing holes 7. The inlet-side fixing holes 64 and the outlet-side fixing holes 70 are both elongated holes extending in the extension direction of the grid bar 67, so as to facilitate the adjustment of the assembly position of the grid bar assembly in the extension direction of the grid bar 67.

[0145] Regarding the shape of the convex part, Figure 14 The structure shown is represented by a triangular barrier strip 66, which is a bent steel bar. The bent part forming the triangular barrier strip 66 in the figure is a V-shaped part, but it can also be an arc-shaped part, with a V-shaped part being preferred. Whether it is a V-shaped part or an arc-shaped part, it has two defined ends, so that the protrusions can be fixed to the corresponding grid strip 67 by welding.

[0146] Furthermore, the V-angle of the protrusion constituting the V-shaped part is 60°~150°; the height of the protrusion is 22%~27% of the radial length of the vibrator.

[0147] Generally speaking, when the V-angle of the convex part is relatively large, the efficiency of separating the fruit from the vine is relatively low, but the mechanical damage rate is relatively low. Conversely, when the V-angle of the convex part is relatively small, the efficiency of separating the fruit from the vine is relatively high, but the mechanical damage rate is relatively high.

[0148] It should also be noted that, depending on the material's direction, the ribs on the side facing the material can be relatively inclined, while the ribs on the opposite side can be at other angles. Figure 14 The triangular barrier strip 66 is arranged in a roughly isosceles triangle manner. In some embodiments, the side of the strip can be an inclined rib, while the right side of the figure is the back side. Whether it is inclined or not has little impact on the fruit falling off the vine.

[0149] When each grid bar 67 is provided with multiple, for example, triangular barrier bars 66, the V-angle of the triangular barrier bars 66 is used as a parameter, and the multiple triangular barrier bars 66 are in the extending direction of the grid bar 67.

[0150] If an arc-shaped protrusion is used, the protrusions arranged sequentially from the inlet side to the outlet side are arranged in a manner that gradually increases in height.

[0151] Furthermore, the number of protrusions on each grid bar 67 is no more than five or five pairs; correspondingly, when the protrusions are arranged in pairs, the two protrusions are symmetrical about the mid-plane of the grid bar axis; the mid-plane is normal to the vibrator axis; the included angle between the paired protrusions is less than or equal to 15° to avoid the vibration finger.

[0152] If the protrusions are evenly arranged in the extension direction of the grid strip 67, all the protrusions are arranged in a sequentially spaced manner with their left and right middle surfaces coplanar with the middle surface, or with one of them skewed to one side of the middle surface and the other skewed to the other side of the middle surface.

[0153] After verification, when the protrusions on the grid strip 67 are arranged to one side, the efficiency of separating the fruit from the vine is relatively high. Under the condition of effectively avoiding vibration, the protrusions can be arranged in a series of intervals with one side of the middle surface tilted to one side and the other side of the middle surface tilted to the other side. This can ensure that the efficiency of separating the fruit from the vine is relatively high when the number of protrusions is the same.

[0154] Correspondingly, the corresponding mid-surfaces are the left and right mid-surfaces of the grid strip 67, which are obviously mid-surfaces with the axis of the vibrating roller 55 as the normal.

[0155] As mentioned earlier, the spiral roller originated from the spiral conveyor, but the material conveyed by the spiral roller on the chili harvester is the chili vine with chili peppers growing on it. It can be set up independently on the chili harvester or configured in the lower stage of the primary separation equipment to form a secondary separation equipment for separating the fruit from the vine.

[0156] The spiral roller includes a cylinder body and a spiral rotor. The cylinder body is constructed as a shell structure. In the embodiment illustrated in this utility model, the cylinder body of the shell structure adopts an upper and lower split structure, but its inner contour is still preferably cylindrical.

[0157] exist Figure 5 In the illustrated structure, to clearly show the arrangement of the helical rotor within the cylinder, a helical roller cover 21 is omitted. Figure 5 The spiral roller shown is a dual-rotor spiral roller, but a single-rotor spiral roller can also be used.

[0158] The cylinder has a defined feed end, which corresponds to a feed inlet (referred to as the inlet), and a discharge end, which corresponds to a discharge outlet (referred to as the outlet). As mentioned earlier, the feed end is the front end, and the discharge end is the rear end.

[0159] It should also be understood that, for the spiral roller, the fruit and the vine are separated during the spiral conveying process. The separated fruit falls through the grid holes of the lower net bottom 30. Below the net bottom 30, there is generally a fruit conveying device, such as the second conveying mechanism mentioned above.

[0160] Furthermore, the lower part of the cylinder wall is defined as the net bottom 30, so that the separated chili pepper fruits can fall through while the fruit vines remain on the net bottom 30.

[0161] Figure 8 This is a structural schematic diagram of a mesh bottom unit. Since the axial length of the mesh bottom 30 is relatively large, it can be modularized to reduce the overall storage, transportation and assembly difficulty. Figure 8In the middle, the bottom unit has an overall arc-shaped structure, more accurately called a cylindrical fan-shaped surface structure. The axis of this arc-shaped structure is collinear with the axis of the spiral rotor of the spiral roller when installed on the chili harvester.

[0162] Figure 8 In the middle, the main structure of the mesh bottom 30 is a grid structure, which is assembled by the straight grid bars 42 parallel to the axis of the spiral rotor and the arc grid bars 43 with the axis of the spiral rotor as the axis in the figure, arranged in a longitudinal and transverse manner.

[0163] The two ends of the arc grid strip 43 are equipped with fixing plates 45, and the two fixing plates 45 form the left and right frames. The two ends of the straight grid strip 42 are fitted with end plates to form the front and rear frames. The end plate 41 is a fan ring plate, and its inner edge is used to connect with the corresponding grid strip. Generally, the connection is made by welding.

[0164] The fixing plate 45 is a straight strip with several fixing holes 45 to fix the mesh bottom 30 to the frame.

[0165] The fixing hole 45 can have adjustment margin in the longitudinal direction, and is accordingly selected as an elongated hole extending in that direction.

[0166] Figure 6 and Figure 7 A spiral rotor is shown. Unlike conventional spiral conveyors, the spiral rotor used on spiral rollers for separating chili pepper fruits from vines has a relatively large helix angle. In the embodiments of this utility model, all or most of the spiral part used to construct the spiral rotor is constructed using a spiral rod 28. Obviously, the axis of the spiral rod 28 is the axis of the spiral rotor.

[0167] The mounting base for the spiral is a mandrel 27, and both ends of the mandrel 27 are mounted on a predetermined frame via bearing seats. Figure 5 The frame is not shown in the illustrated structure. Since feeding and discharging need to be achieved axially on the screw rotor, for example, the inlet bearing housing 19 generally requires connection by two or three radial rods. The material enters the cylinder from the fan-shaped space between the radial rods. The same applies to the outlet bearing housing 23, which will not be described further here.

[0168] In other embodiments, the mandrel 27 can be extended to allow for the opening of the inlet and outlet positions, thus eliminating the need for radial rods to connect and support the corresponding bearing seats, for example... Figure 6 In the middle, the tail end of the screw 28 is a distance from the outlet end journal 38 used to install the bearing, which is sufficient to allow the fruit seedlings sent out by the screw to pass through. The corresponding outlet end bearing seat 23 can be, for example, a split bearing seat that is directly mounted on the frame.

[0169] For ease of description, as follows Figure 6The leading helical blade 33 and the helical rod 28 shown are collectively referred to as a helix. Both the leading helical blade 33 and the helical rod 28 are fixedly mounted on the spindle 27 and are preferably assembled by welding.

[0170] In the embodiments of this utility model, in order to overcome the tendency of seedlings to get stuck or cause blockage when they enter the cylinder, the pitch of the front part of the spiral gradually increases from the feed end to the discharge end, thus forming a variable pitch section. During the process of the seedlings entering the cylinder, they are constrained by the cylinder opening and are initially combed, and the flow rate is controllable. If the variable pitch section exists, it is equivalent to the internal compression of the seedlings gradually decreasing during the process, so that the seedlings have a certain amount of expansion after entering the cylinder, which helps to reduce or eliminate the sticking and thus prevents the seedlings from directly blocking the cylinder opening.

[0171] Regarding the drive of the helical rotor, a helical roller motor 26 is connected to the tail end of the spindle 27, that is, the rear end. In the example of a double helical rotor, the two helical rotors can be configured with helical roller motors 26 independently, or they can share a single helical roller motor 26.

[0172] Furthermore, if a single spiral roller motor 26 is used, Figure 5 In this design, a double sprocket 25 is provided at the tail end of one spiral rotor, and a driven sprocket can be provided on the other spiral rotor. The two spiral rotors can be driven by a chain drive mechanism.

[0173] Regarding the double sprocket 25, if it is only used to drive one driven object to rotate, it can be configured as a single drive sprocket.

[0174] Since the transmission chain in the chain drive mechanism is a flexible component with a certain buffering capacity, it is well-suited for materials such as fruit seedlings. Similarly, for example, the spiral roller motor 26 can be connected to the spindle 27 using a flexible coupling.

[0175] exist Figure 5 The illustrated structure also includes a feeding roller 18 located at the front of the feed end to assist in feeding the fruit vines. For granular materials, feeding is generally achieved by relying on the natural flow of the material under gravity. However, for fruit vines, feeding often requires a separate feeding device to control the feeding speed within a suitable range.

[0176] exist Figures 5-8 In the illustrated structure, the variable pitch section forms a leading helical blade 33, which replaces part of the helical rod 28 to facilitate combing of the fruit seedlings.

[0177] contrast Figure 6 and Figure 8The leading helical blade 33 and the helical rod 28 are shaped as follows: the leading helical blade 33 has a complete helical surface, while the helical rod 28 is essentially a solid body consisting only of the large-diameter portion, and a part used to connect the helical rod 28 to the spindle 27, as shown in the figure as the support rod 32. The leading helical blade 33, while conveying the fruit vines, also facilitates the sorting of the vines, allowing them to be guided more smoothly into the cylinder.

[0178] Meanwhile, the leading spiral blade 33, namely the aforementioned variable pitch section, has a relatively complete spiral surface that is more conducive to the spreading of the fruit seedlings.

[0179] The screw rod 28 does not have a complete spiral surface, but for fruit seedlings, the materials are entangled inside. The screw rod 28 can still ensure that the fruit seedlings are twisted backward. This is common knowledge in the field and will not be elaborated here.

[0180] During the spiral backward conveying of the seedlings, the chili peppers fall off due to centrifugal force and the resistance of the net bottom 30, and the seedlings are finally discharged from the tail of the spiral roller.

[0181] Regarding the aforementioned leading helical blade 33, its length should not be too large or too small. If it is too small, the leading effect will be insufficient or weak; if it is too large, it will function like a traditional screw conveyor, with limited capacity for conveying materials such as fruit seedlings. Therefore, the length of the leading helical blade 33 is 10.5% to 14.2% of the axial length of the helix.

[0182] To improve the ability to agitate the fruit vines, triangular or U-shaped protrusions 29 are distributed on the radial centrifugal side of the spiral rod 28. Among them, in Figure 6 In the middle, the protrusion 29 is a U-shaped protrusion. For the triangular protrusion 29, its overall structure is actually a V-shaped structure. Based on the bending, an arc-shaped structure will also be formed at the top.

[0183] For V-shaped structural components, the V-angle should not be less than 60°, otherwise the top will be relatively sharp.

[0184] The protrusion 29 is made by bending round steel and then fixing it to the helical rod 28 by welding. Correspondingly, the helical rod 28 is made of steel tubing and wound into a spiral shape.

[0185] When determining the technical parameters of the helix, the dimensions of the protrusion 29, such as the major diameter of the helix, are not considered. The protrusion 29 is used as an accessory attached to the helix rod 28 and is not used as the design basis for the helix rod 28.

[0186] Furthermore, the height of the protrusion 29 is one-seventh to one-fifth of the major diameter of the helical rod 28.

[0187] Furthermore, the distribution density of the protrusions 29 on the corresponding screw rod is 3 to 5 per meter, and the length of the screw rod in this distribution density is the dimension in the axial direction of the screw roller.

[0188] To mitigate damage to chili peppers and reduce mechanical breakage, the ends of the leading spiral blade 33 are rounded, have cylindrical edging, or are welded with cylindrical protective rigid strips. The ends of the leading spiral blade 33 obviously refer to both axial ends. Since the leading spiral blade 33 is made of steel plate, the end edges have sharp edges that can easily damage chili peppers. Therefore, in some embodiments, the front edge of the leading spiral blade 33 can be directly rounded.

[0189] And in Figure 6 In the illustrated structure, a protective round steel strip 36 is welded to the front edge of the leading spiral blade 33. The diameter of the protective round steel strip 36 is different from the aforementioned rounding treatment. The maximum diameter of the arc head formed by the rounding treatment is the thickness of the leading spiral blade 33. However, when the protective round steel strip 36 is used, it is not affected by the thickness of the leading spiral blade 33. Therefore, it can have a relatively large diameter and is relatively blunt, making it less likely to damage the pepper fruit.

[0190] In addition, the diameter of the protective round steel strip 36 should not be too large, and should not be more than three times the thickness of the leading spiral blade 33.

[0191] If a cylindrical lip is used, for example, a steel plate can be rolled into a slotted steel tube, with the slots used for the insertion of the front edge of the leading spiral blade 33, and then welded to form a cylindrical lip.

[0192] Regarding the other end of the leading helical blade 33, namely the rear end, the treatment method can be the same as that of its front end, and for example, Figure 6 The measures shown, such as the reinforced round steel bar 37, are to reduce damage to the pepper fruit.

[0193] Regarding the basic parameters of the helix, in a relatively preferred embodiment, the front pitch of the leading helical blade 33 is 550mm~650mm, and the rear pitch is 1900mm~2300mm; wherein the front pitch is preferably 600mm, and the rear pitch is preferably 2000mm.

[0194] Correspondingly, the helix angle of the front part of the leading helical blade 33 is 73°~75°, and the helix angle of the rear part is 40°~46°; wherein, the helix angle of the front part of the leading helical blade 33 is preferably 74.1°, and the helix angle of the rear part is preferably 43°.

[0195] For the screw rod 28, an equidistant screw is adopted, with a usable screw pitch of 5750mm~6250mm, preferably 6000mm, and a usable screw angle of 12.2°~12.6°, preferably 12.4°.

[0196] Furthermore, the major diameter of the leading spiral blade 33 is larger than that of the spiral rod 28, and the difference between the major diameters of the leading spiral blade 33 and the spiral rod 28 is one-sixth to one-third of the major diameter of the spiral rod 28. There are two main considerations. First, as mentioned above, the major diameter of the spiral rod 28 does not take into account the aforementioned protrusion 29. The length of the protrusion 29 in the spiral radial direction is one-seventh to one-fifth of the major diameter of the spiral rod 28. Under the condition of being twisted by the leading spiral blade 33, the chili seedlings will also tend to move along the inner wall of the cylinder due to centrifugal force.

[0197] Given that chili seedlings have poor spiral transport capacity, in the embodiments of this utility model, a three-headed spiral or a double-headed spiral is used to transport the chili seedlings. The typical characteristic of a multi-headed spiral is high transport efficiency. This characteristic is used to improve the transport capacity of the chili seedlings, so that the chili fruit and the seedling are separated during transport.

[0198] In addition, the multi-head spiral mandrel 27 is subjected to more even force and wear is relatively less. For materials such as chili seedlings that are difficult to transport, the use of a multi-head spiral can reduce the load on the mandrel 27 and have a longer service life.

[0199] Furthermore, the multi-head spiral can effectively reduce the impact of pulsation during the material conveying process. Several spiral units alternately convey materials, making the overall flow of materials such as chili seedlings more stable.

[0200] exist Figure 5 In the illustrated structure, the portion with the mesh bottom 30 and the remaining portion of the cylinder are separate parts. The portion with the mesh bottom 30 constitutes a fixed mesh bottom assembly, while the remaining portion constitutes the cylinder cover, as shown below. Figure 5 The spiral roller cover 21 shown is generally configured as a split structure, similar to a split bearing housing, so that, for example, the part that causes local congestion can be cleaned when the spiral roller cover 21 is opened separately.

[0201] Even when performing a complete cleaning, opening the spiral roller cover 21 from the top will make the cleaning process relatively smooth.

[0202] Accordingly, such as Figure 9 and Figure 10 The diagram shows a schematic of the structure of a spiral roller cover unit 21. A rotating shaft 48 is provided on one side of the cover unit, which engages with, for example, a shaft hole provided on the frame to form a cylindrical hinge pair. A buckle 22 is provided on the other side.

[0203] Clearly, the axis of the rotating shaft 48 is parallel to the axis of the helical rotor.

[0204] Normally, the cylinder cover unit is closed in place, and then the cylinder cover unit is locked to the frame between, for example, two cylinder covers using, for example, clip 22. When maintenance is required, the clip 22 is released, and the cylinder cover unit is lifted upwards to clean the inside of the cylinder.

[0205] Clips 22 are a quick and convenient way to fasten items; common fasteners fall into this category. Screws can also be used, such as wing nuts, for quick and easy installation and removal.

[0206] The cylindrical cover is divided into several segments, which can be opened and handled segment by segment. Accordingly, each segment has an independent fixing part.

Claims

1. A chili pepper harvester, characterized in that, include: Chassis; The cutting platform, located at the front of the chassis, is used for harvesting chili pepper plants. The first conveying mechanism is located behind the cutting platform to convey the chili pepper plants harvested by the cutting platform onto the chassis. A vibrating separator, mounted on a chassis, is connected to the first conveying mechanism and is used for the one-time separation of chili pepper fruits from the vines. It has a first row of vine openings and a first row of fruit openings. A spiral roller, set on a chassis and receiving the first row of seedling openings, is used for secondary separation of chili peppers and fruit vines. The spiral roller also has a second row of seedling openings and a second row of fruit openings. as well as The fruit collecting device is used to collect the chili pepper fruits discharged from the first and second rows of fruit openings.

2. The linear pepper harvester according to claim 1, characterized in that, The vibrating separator and the spiral roller are arranged longitudinally on the chassis; Accordingly, the fruit collecting device includes a second conveying mechanism located below the vibrating separator and the spiral roller.

3. The linear pepper harvester of claim 2, wherein, The fruit collecting device also includes a third conveying mechanism arranged in parallel with the second conveying mechanism, and a transverse conveying mechanism for transferring the fruit from the second conveying mechanism to the third conveying mechanism, wherein the second conveying mechanism conveys backward and the third conveying mechanism conveys forward. There is a height difference between the end of the second conveying mechanism and the receiving end of the transverse conveying mechanism, so as to form a fruit curtain when the transverse conveying mechanism receives the material; Accordingly, a fan is also provided on the chassis, with the fan's outlet directed toward the fruit curtain to blow out impurities from the fruit.

4. The linear pepper harvester according to claim 2 or 3, characterized in that, The fruit collection device has a fruit compartment and / or a lifting and unloading boom.

5. The line pepper harvester of claim 1, wherein, The first conveying mechanism includes: Cutting platform; A header conveyor belt, mounted on the header frame, feeds the harvested chili pepper plants diagonally upwards and backwards; and The seedling pressing device is located in the middle or upper part of the rear section of the cutting platform conveyor belt to feed the chili peppers to the material inlet of the vibrating separator at a given material thickness.

6. The line pepper harvester of claim 5, wherein, The seedling pressing device is a seedling pressing conveyor belt, and a seedling pressing space is formed between the lower surface of the seedling pressing conveyor belt and the upper surface of the cutting platform conveyor belt.

7. The line pepper harvester of claim 6, wherein, The space for pressing seedlings gradually decreases from front to back, and the pressing seedling conveyor belt and the cutting platform conveyor belt rotate in opposite directions.

8. The line pepper harvester of claim 1, wherein, The vibration separator includes: A vibrating roller is mounted on the chassis via a corresponding mounting base, and vibrating fingers are distributed on the vibrating roller. The bottom grid of the vibrating separator includes grid bars, an inlet-side fixing part, and an outlet-side fixing part; wherein, a plurality of the grid bars are arranged in a predetermined direction at a predetermined interval, and the working surface of the grid bars is provided with at least one protrusion that arches towards the vibrating drum and avoids the vibrating finger; the inlet-side fixing part is used to fix one end of the grid bar; the outlet-side fixing part is used to fix the other end of the grid bar; The vibrator is installed at one end of the vibrating drum; The vibrating separator bottom grid and the vibrating drum form a material channel, with one end of the material channel serving as a material inlet for receiving the first conveying mechanism and the other end serving as a material outlet for feeding the spiral roller; the separated chili pepper fruits fall onto the fruit collection device through the vibrating separator bottom grid.

9. The line pepper harvester of claim 8, wherein, The grid strips are divided into several groups; Accordingly, each set of grid bars is equipped with independent outlet-side fixing parts and inlet-side fixing parts.

10. The string pepper harvester of claim 9, wherein, Each set of grilles has two or three grilles.

11. The line pepper harvester of claim 10, wherein, It includes at least one group with two grid strips.

12. A machine as claimed in any one of claims 9 to 11, wherein, The inlet-side fixing part and the outlet-side fixing part are plate-type fixing parts; The corresponding grating strips are welded onto the corresponding inlet-side fixing parts and outlet-side fixing parts.

13. The line pepper harvester of claim 12, wherein, The fixing holes on the plate-type fixing part are elongated holes extending in the extension direction of the grid strip.

14. The pepper harvester of claim 8, wherein, The protrusion is an arc-shaped or V-shaped part formed by bending a rod, and the two ends of the protrusion are fixed to the corresponding grid strips. The V-angle of the protrusion that constitutes the V-shaped part is 60°~150°; The height of the protrusion is 22% to 27% of the radial length of the vibrating separator.

15. The line pepper harvester of claim 14, wherein, The number of protrusions on each grille bar is no more than five or five pairs; When the protrusions are arranged in pairs, the two protrusions are symmetrical about the mid-plane of the grid bar axis; the mid-plane is normal to the axis of the vibrating separator; the included angle between the paired protrusions is less than or equal to 15°. If the protrusions are evenly arranged in the extension direction of the grid strip, all the protrusions are arranged in a sequentially spaced manner with their left and right middle surfaces coplanar with the middle surface, or with one of them skewed to one side of the middle surface and the other skewed to the other side of the middle surface.

16. The line pepper harvester of claim 1, wherein, The spiral roller includes: The cylinder body forms a tubular structure, with one end being the feed end and the other end being the discharge end. The lower part of the cylinder wall forms a mesh bottom to allow the separated chili pepper fruits to fall through. A helical rotor has a spindle and a helix mounted on the spindle. The pitch of the helix gradually increases from the feed end to the discharge end, forming a variable pitch section. The axis of the helical rotor is collinear with the axis of the cylinder, and both ends are mounted on a chassis via bearing seats. A spiral roller motor is mounted on a chassis and outputs power to drive the spiral rotor.

17. The line pepper harvester of claim 16, wherein, The cylinder has two parallel spiral rotors, and each rotor corresponds to one of the cylinders.

18. The line pepper harvester according to claim 16 or 17, characterized in that It also includes a feed roller located on the front side of the feed end.

19. The line pepper harvester of claim 16, wherein, The variable pitch section forms the leading helical blade, and the remaining helices are formed by a helical rod and a support rod for fixing the helical rod to the spindle.

20. The line pepper harvester of claim 19, wherein, The length of the leading helical blade is 10.5% to 14.2% of the axial length of the helix.

21. The chili harvester according to claim 19 or 20, characterized in that, The screw rod has triangular or U-shaped protrusions distributed on the centrifugal side of the screw; The height of the protrusion is one-seventh to one-fifth of the major diameter of the screw rod; The distribution density of the protrusions on the corresponding helical rod is 3 to 5 per meter, and the length of the helical rod in this distribution density is the dimension along the axial direction of the helical roller.

22. The line pepper harvester of claim 19, wherein, The end of the leading spiral blade is rounded, has a cylindrical lip, or is welded with a cylindrical protective rigid strip.

23. The line pepper harvester of claim 19, wherein, The leading helical blade has a front pitch of 550mm~650mm and a rear pitch of 1900mm~2300mm. Correspondingly, the helix angle at the front of the leading helical blade is 73°~75°, and the helix angle at the rear is 40°~46°; The pitch of the screw rod is 5750mm~6250mm, which is a constant pitch screw, and the helix angle of the screw rod is 12.2°~12.6°.

24. The line pepper harvester of claim 23, wherein, The major diameter of the leading helical blade is larger than that of the helical rod, and the difference between the major diameters of the leading helical blade and the helical rod is one-sixth to one-third of the major diameter of the helical rod.

25. The line pepper harvester of claim 16, wherein, The spiral is either a three-ended spiral or a two-ended spiral.

26. The line pepper harvester of claim 16, wherein, The part with the mesh bottom and the rest of the cylinder body are separate parts from each other. The part with the mesh bottom constitutes a fixed mesh bottom assembly, while the rest of the part constitutes a cylinder cover. Accordingly, the cylindrical cover has a hinge on one side and a fixing part on the other side, so that when the fixing part is released, the cylindrical cover can be lifted on one side with the hinge as the axis.

27. The line pepper harvester of claim 26, wherein, The cylindrical cover has multiple segments; Accordingly, each segment has an independent fixing part.

28. The line pepper harvester according to claim 26 or 27, characterized in that, The fixing part is a snap-on fixing part.

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