Thread pepper harvester

Abstract

The invention 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 line pepper harvester, under the condition that pepper fruits and fruit seedlings are effectively separated, the separated pepper fruits are ensured.

Description

Technical Field

[0001] The invention relates to a linear pepper harvester. Background Art

[0002] With the decrease in the rural labor force, machine harvesting / reaping has gradually become the mainstream. As for pepper harvesters, with the maturity of technology, in order to standardize the design and manufacture of pepper harvesters, the Chinese machinery industry has issued the recommended standard JB / T 12825-2016, the standard name is "Pepper Harvester" (On March 8, 2019, the Ministry of Agriculture and Rural Affairs issued the standard number DG / T 114-2019, the standard name is "Pepper Harvester").

[0003] According to the industry standard JB / T 12825-2016, the fruit shape index refers to the ratio of fruit length to fruit diameter (largest end diameter), and string peppers are defined as peppers with a fruit shape index greater than 8. Tomatoes are spherical, with a fruit shape index around 1. In other words, a tomato harvester is suitable for harvesting round peppers, but not string peppers. During the harvesting of spherical fruits like tomatoes and round peppers, the fruit and vine are separated by vibrating rollers that vibrate at a given frequency during their rotation. These rollers are equipped with vibrating fingers (also known as spring teeth). These fingers move the vines backward while shaking the relatively heavy spherical fruit off the vines, effectively separating the fruit from the vines.

[0004] Correspondingly, a bottom grid is installed below the vibrating roller. Under the support of the bottom grid and the movement of the vibrating fingers, the fruit vines are pushed onto the fruit vine conveyor belt, while the fruit falls through the bottom grid onto the fruit conveyor belt. The bottom grid is composed of several circular grid bars, in an arc-shaped comb-like structure, with one end fixed and the other suspended, which serves to support the fruit vines.

[0005] This structure, which is derived from a tomato harvester, can separate nearly spherical fruits such as tomatoes and round peppers. However, when harvesting linear pepper fruits such as chili peppers, the linear pepper fruits are difficult to separate from the fruit vines because the linear pepper fruits are similar in shape to the fruit vines and the linear peppers themselves are relatively light in weight. For example, increasing the vibration frequency and amplitude of the vibration separator may lead to a high mechanical breakage rate of the fruit. Therefore, it is necessary to improve the separation structure so that it can adapt to the separation of linear pepper fruits.

[0006] At the same time, simply relying on the cooperation between the vibration roller and the bottom grid of the vibration separator can only separate the pepper fruits and vines with relatively high maturity. In other words, there will still be a large number of pepper fruits remaining after the vines pass through the vibration separator station. Therefore, the vines need to enter the next station to fully separate the string peppers on the vines.

[0007] Currently, there is a separate device for separating the berries from the vines of peppers, namely a spiral roller, which can effectively separate the berries from the vines. Its principle is similar to that of a screw conveyor: the twisting of the spiral rotor causes the vines to move axially along the cylinder. During this process, the berries are separated by centrifugal force and friction with the grate at the bottom of the cylinder. Compared to separation methods using vibrating separators, this separation method has a relatively strong separation capacity, but it also increases mechanical damage to the berries (mechanical breakage rate is required to be less than 2%). It should be noted that the more mature the berries, the more likely they are to fall off, but their resistance to mechanical damage is less. Conversely, mature berries are less likely to fall off and their resistance to mechanical damage is greater. Simply using a spiral roller with relatively strong separation capacity for separation can easily result in an excessively high mechanical damage rate for the berries. Summary of the Invention

[0008] The object of the present invention is to provide a line pepper harvester which can effectively separate pepper fruits from fruit vines and ensure that the mechanical breakage rate of separated pepper fruits is relatively low.

[0009] According to an embodiment of the present invention, a chili pepper harvester is provided, comprising: chassis; A header, arranged at the front end of the chassis, for harvesting pepper plants; A first conveying mechanism is provided at the rear side of the harvesting platform to convey the pepper plants harvested by the harvesting platform to the chassis; A vibrating separator is provided on the chassis, receives the first conveying mechanism, and is used for primary separation of the pepper fruits from the fruit vines, and has a first row of vine openings and a first row of fruit openings; A spiral roller is provided on the chassis and receives the first row of seedling openings for secondary separation of the peppers from the fruit seedlings. The spiral roller has a second row of seedling openings and a second row of fruit openings; and The fruit collecting device is used to receive the pepper fruits discharged from the first and second rows of fruit openings.

[0010] Optionally, the vibration separator and the spiral roller are arranged in the longitudinal direction of the chassis; Correspondingly, the fruit collecting device comprises a second conveying mechanism, which is located below the vibrating separator and the spiral roller.

[0011] Optionally, the fruit collecting device further comprises 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 material receiving end of the transverse conveying mechanism, so as to form a fruit curtain when the transverse conveying mechanism receives the material; Correspondingly, a fan is also provided on the chassis, and the air outlet of the fan rushes towards the fruit curtain to blow out impurities in the fruit.

[0012] Optionally, the fruit collecting device has a fruit compartment and / or a lifting and unloading arm.

[0013] Optionally, the first conveying mechanism includes: Cutting platform frame; a header conveyor belt, provided on the header frame, for conveying the harvested pepper plants obliquely backward and upward; and The seedling pressing device is located in the middle and rear part or the upper side of the rear part of the cutting platform conveyor belt, so as to feed the pepper plants with a given material thickness backward to the material inlet of the vibration separator.

[0014] Optionally, the seedling pressing device is a seedling pressing conveyor belt, and a seedling pressing space is formed between the lower belt surface of the seedling pressing conveyor belt and the upper belt surface of the cutting platform conveyor belt.

[0015] Optionally, the rice seedling pressing space gradually becomes smaller from front to back, and the rice seedling pressing conveyor belt and the cutting platform conveyor belt turn in opposite directions.

[0016] Optionally, the vibration separator comprises: A vibration roller is mounted on the chassis via a corresponding mounting base, and vibration fingers are distributed on the vibration roller; The bottom grid of the vibration separator comprises grid bars, an inlet-side fixing portion, and an outlet-side fixing portion; wherein a plurality of the grid bars are arranged in a predetermined direction and at a predetermined interval, and the working surface of the grid bars is provided with at least one convex portion that arches toward the side where the vibration roller is located and avoids the vibration fingers; the inlet-side fixing portion is used to fix one end of the grid bar; and the outlet-side fixing portion is used to fix the other end of the grid bar. A vibrator, mounted on one end of the vibration roller; Among them, there is a material channel between the bottom grid of the vibration separator and the vibration roller, and one end of the material channel is a material inlet for receiving the first conveying mechanism, and the other end is a material outlet for feeding the spiral roller; the separated string pepper fruits pass through the bottom grid of the vibration separator and fall onto the fruit collecting device.

[0017] Optionally, the grille bars are divided into groups; Accordingly, each group of grid bars is adapted with outlet-side fixing portions and inlet-side fixing portions that are independent of each other.

[0018] Optionally, each group of grille bars has two or three grille bars.

[0019] Optionally, at least one group having two grille bars is included.

[0020] Optionally, the inlet-side fixing portion and the outlet-side fixing portion are plate-type fixing portions; The corresponding grid bars are welded to the corresponding inlet-side fixing portion and outlet-side fixing portion.

[0021] Optionally, the fixing hole on the plate-type fixing portion is an elongated hole extending in the extension direction of the grille bars.

[0022] Optionally, the convex portion is an arc-shaped or V-shaped member formed by bending a rod, and both ends of the convex portion are fixed to corresponding grille bars; The V angle of the convex portion constituting the V-shaped member is 60° to 150°; The height of the convex portion is 22% to 27% of the radial length of the vibrating finger in the vibrating separator.

[0023] Optionally, the number of protrusions on each grille bar is no more than five or five pairs; When the convex parts are arranged in pairs, the two convex parts are symmetrical about the middle plane passing through the axis of the grid bar; the middle plane takes the axis of the vibration separator as the normal; the angle between the convex parts arranged in pairs is less than or equal to 15 degrees; If the convex portions are evenly arranged in the extension direction of the grille bars, the left and right middle surfaces of all the convex portions are coplanar with the middle surface or are arranged in sequence with one convex portion tilted toward one side of the middle surface and the other convex portion tilted toward the other side of the middle surface.

[0024] Optionally, the spiral roller comprises: The barrel forms a shell-and-tube structure, one end of which is the feed end and the other end is the discharge end, and the barrel wall at the lower part of the barrel is determined to form a net bottom to drain the separated pepper fruits; A spiral rotor having a spindle and a spiral mounted on the spindle, wherein the pitch of the front portion of the spiral gradually increases from the feed end to the discharge end, forming a variable pitch section; the axis of the spiral rotor is collinear with the axis of the barrel, and both ends are mounted on the chassis via bearing seats; and The spiral roller motor is mounted on the chassis, and its output drives the spiral rotor.

[0025] Optionally, the barrel has two parallel arranged spiral rotors, and the corresponding spiral rotors correspond to the barrels one by one.

[0026] Optionally, it also includes a feeding roller arranged at the front side of the feeding end.

[0027] Optionally, the variable pitch segment constitutes a leading helical blade, and the remaining helices are formed by a helical rod and a support rod for fixing the helical rod on the spindle.

[0028] Optionally, the length of the leading spiral blade is 10.5% to 14.2% of the axial length of the spiral.

[0029] Optionally, the spiral rod is provided with triangular or U-shaped protrusions on the centrifugal side of the spiral; 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 spiral rod is 3 to 5 per meter, and the length of the spiral rod in this distribution density is the dimension in the axial direction of the spiral roller.

[0030] Optionally, the end of the leading spiral blade is rounded, has a cylindrical edge, or is welded with a cylindrical protective rigid strip.

[0031] Optionally, the leading spiral blade has a front pitch of 550 mm to 650 mm and a rear pitch of 1900 mm to 2300 mm; Accordingly, the helix angle of the leading spiral blade is 73°~75° at the front and 40°~46° at the rear; 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°.

[0032] Optionally, the major diameter of the leading helical blade is greater 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.

[0033] Optionally, the helix is a triple-start helix or a double-start helix.

[0034] Optionally, the portion with the net bottom and the rest of the barrel are separate parts, wherein the portion with the net bottom constitutes a fixedly arranged net bottom assembly, and the rest constitutes the barrel cover; Correspondingly, the barrel cover is provided with a hinge shaft on one side and a fixing portion on the other side, so that when the fixing portion is released, the barrel cover can be opened to one side with the hinge shaft as the axis.

[0035] Optionally, the sleeve cover has a plurality of segments; Accordingly, each segment has an independent fixing portion.

[0036] Optionally, the fixing portion is a snap-on fixing portion.

[0037] Based on the description in the background technology section, it can be seen that current pepper harvesters typically rely solely on vibrating separators or spiral rollers. The former is more suitable for harvesting peppers with spherical fruits and relatively high maturity, while the latter, due to its strong separation ability, can be used for harvesting string peppers, but the latter produces a relatively high rate of mechanical breakage. In view of this, in an embodiment of the present invention, two separation devices are arranged on the same string pepper harvester. The vibrating separator is arranged in the primary separation station to separate the string peppers that are easy to separate and relatively mature, while the spiral roller is arranged in the secondary separation station. The plants discharged from the vibrating separator, which are relatively less mature and less prone to mechanical breakage, are further fed to the spiral roller. The spiral roller's relatively high separation rate is utilized to separate the string peppers remaining after the primary separation. The combination of the two separation devices for separating pepper fruits from fruit vines synergistically solves the problem of balancing the separation rate and mechanical breakage rate, ensuring that the mechanical breakage rate of the harvested string peppers is within a specified range while ensuring effective separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram of a pepper harvester from the right side in one embodiment.

[0039] Figure 2 It is a right view structural schematic diagram of a fruit collecting device in one embodiment.

[0040] Figure 3 This is a schematic diagram of the first three-dimensional structure of a pepper harvester in one embodiment (left rear view).

[0041] Figure 4 This is a schematic diagram of the second three-dimensional structure of the pepper harvester in one embodiment (right front view).

[0042] Figure 5 Schematic diagram of the structure of a spiral roller with double spiral rotors in one embodiment, wherein a spiral roller cover is omitted.

[0043] Figure 6 Schematic diagram of the three-dimensional structure of the helical rotor in one embodiment.

[0044] Figure 7 It is a schematic diagram of the right side structure of the spiral rotor in one embodiment.

[0045] Figure 8 Schematic diagram of the structure of the mesh bottom unit in one embodiment.

[0046] Figure 9 It is a schematic diagram of the three-dimensional structure of the drum cover unit in one embodiment.

[0047] Figure 10 This is a schematic diagram of the main structure of the barrel cover unit in one embodiment.

[0048] Figure 11 Schematic diagram of the assembly structure of the bottom grid of the vibration separator on the vibration separator in one embodiment.

[0049] Figure 12 This is a left side view of the assembly structure of the bottom grid of the vibration separator on the vibration separator in one embodiment.

[0050] Figure 13 Schematic diagram of the bottom grid structure of a vibration separator in one embodiment.

[0051] Figure 14 Schematic diagram of a wide-bottom grille structure in one embodiment.

[0052] In the figure: 1. Comb-finger cutting platform, 2. Seedling-pulling conveyor belt, 3. Cutting platform conveyor belt, 4. 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. Horizontal conveyor belt, 12. Trash removal conveyor belt, 13. Rubber roller bed, 14. Lifting and unloading arm, 15. Forward lifting conveyor belt, 16. Chassis, 17. Blowing port, 18. Feed roller, 19. Inlet bearing seat, 20. End cover, 21. Spiral roller cover, 22. Buckle, 23. Outlet bearing seat, 24. Motor seat, 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. Feed motor, 35. Inlet End journal, 36. Protective round steel bar, 37. Reinforced round steel bar, 38. Outlet end journal, 39. Shaft head, 40. Keyway, 41. End plate, 42. Straight grid bar, 43. Arc grid bar, 44. Fixed plate, 45. Fixed hole, 46. Cylinder cover end plate, 47. Ear plate, 48. Rotating shaft, 49. Cover body, 50. Support plate, 51. Bottom grille, 52. Rotating motor, 53. Left fixed seat, 54. Barrier grille, 55. Vibrating roller, 56. Vibrating mechanism, 57. Right fixed seat, 58. Material inlet, 59. Material outlet, 60. Wide bottom grille, 61. Arrangement interval, 62. Narrow bottom grille, 63 Fastening assembly, 64. Inlet side fixing hole, 65. Inlet side fixing plate, 66. Triangular barrier bar, 67. Grille bar, 68. Grille groove, 69. Outlet side fixing plate, 70. Outlet side fixing hole. DETAILED DESCRIPTION

[0053] It should be known that for equipment with a chassis 16, it often has definite front, back, left, right, up and down. 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 determine the longitudinal direction of the chassis 16, which is also called the long direction. For example, the longitudinal beams, the front and rear ends of the chassis 16 are named in this way.

[0054] Correspondingly, the left and right sides of the chassis 16 are also called the transverse direction or the width direction, and the transverse direction is also called the lateral direction. For example, the crossbeams and side panels of the chassis 16 are named in this way.

[0055] When the front, back, left and right directions are determined, the up and down directions are also determined, which are also called the height directions.

[0056] As a clarification on the first technical issue, it should be noted that in this field, there is a standardized evaluation method for mechanical breakage rate, defined in the industry standard JB / T 12825-2016, and it is one of the key indicators for evaluating pepper harvester performance. For string peppers, using traditional pepper harvesters, while ensuring efficient separation of fruit from vines, can easily lead to a high mechanical breakage rate (greater than 5%). However, maintaining a satisfactory mechanical breakage rate also makes separation of fruit from vines more difficult, resulting in a high number of pepper fruits remaining on the vines.

[0057] Among them, the simple vibration separator 6 is more suitable for spherical fruits, and requires that the spherical fruits are relatively mature. Vibration can effectively separate the pepper fruits from the pepper plants (fruit vines). For pepper fruits with relatively low maturity, the separation rate is very low.

[0058] For a simple spiral roller, such as Figure 1 The double spiral separation roller 7 shown in FIG has a strong separation capability, but is prone to a relatively large mechanical breakage rate.

[0059] Relatively speaking, the more mature the peppers are, the easier they are to separate from the vines, but they are also more likely to be mechanically damaged during the separation process.

[0060] In an embodiment of the present invention, adapted to the first technical problem, two pepper separation devices are used in coordination, which not only ensures the separation rate of the string peppers, but also ensures that the mechanical breakage rate of the harvested string pepper fruits is lower than the specified value.

[0061] Regarding the chassis 16 of the line pepper harvester, the currently commonly used agricultural vehicle chassis is adopted, and the ground clearance of the chassis is relatively high. This is common knowledge in the field and will not be repeated here.

[0062] Then, a cutting platform is provided at the front side of the chassis 16, such as Figure 1 and Figure 4 As shown in the figure, the present invention does not involve improvements to the cutting table. Those skilled in the art can choose a known cutting table for harvesting pepper plants, which will not be described in detail here.

[0063] The header itself often has the ability to transport backwards, such as Figure 1The header conveyor belt 3 shown in the figure is used to transport the chili plants harvested by the header to the chassis 16. In some implementations, the header transports the harvested plants to the left or right side of the chassis 16, and ultimately guides the harvested plants along one side of the travel direction of the chassis 16. In an embodiment of the present invention, the header conveyor belt 3 needs to transport the chili plants harvested by the header backward to the separation device on the chassis 16.

[0064] As mentioned above, in order to solve the first technical problem, two separation devices are used in combination. The first is a vibration separator 6. The vibration separator 6 is arranged on the chassis 16 and receives the first conveying mechanism for the one-time separation of the pepper fruits and the fruit vines. The vibration separator 6 has a first row of vine openings and a first row of fruit openings.

[0065] Another type of separation device is a spiral roller, such as Figure 1 The double spiral separation roller 7 is arranged on the chassis 16, and the double spiral separation roller 7 undertakes the first row of seedling openings for secondary separation of line peppers and fruit seedlings. Correspondingly, the spiral roller has a second row of seedling openings and a second row of fruit openings.

[0066] There is a connection relationship between the two separation devices. The connection here obviously refers to the connection of the fruit vines, and the separated fruits can fall on the fruit collecting device. Therefore, the fruit collecting device is used to receive the pepper fruits discharged from the first row of fruit ports and the second row of fruit ports.

[0067] The double spiral separation roller 7 used for the second stage separation can discharge the fruit vines directly into the harvested pepper field, or discharge them into the pepper field after being crushed. For example, bundling equipment can also be set up to bundle the fruit vines and throw them into the pepper field so that they can be collected and used, for example, to make biomass fuel.

[0068] Further, in order to facilitate the layout of the fruit collecting device, the vibration separator 6 is Figure 1 、 Figure 3 and Figure 4 In the illustrated structure, for example, the double-helix separation roller 7 is arranged longitudinally on the chassis 16, that is, the primary separation and the secondary separation are connected in the front-to-back direction and arranged along the chassis 16, and the overall stability is relatively good.

[0069] Correspondingly, the fruit collection device includes a second conveying mechanism, which is located on the lower side of the vibrating separator and the spiral roller to receive the string pepper fruits separated by the primary separation station and the secondary separation station. Since the positions of the primary separation station and the secondary separation station are determined and arranged in the longitudinal direction of the chassis 16, the second conveying mechanism is also arranged in the longitudinal direction of the chassis 16, which is conducive to using a set of second conveying mechanisms to collect and transport the string peppers separated by the two stations.

[0070] exist Figure 1 In the illustrated structure, the second conveying mechanism is a fruit conveyor belt 9, shown below a star-wheel bed 8. The star-wheel bed 8 is similar to a roller bed, except that it uses star wheels instead of rollers. A star wheel is a gear component. Unlike an involute gear, the tooth profile of a star wheel has two concave surfaces, which facilitates the conveyance of, for example, stems. The gaps between the star wheels in the star-wheel bed 8 are relatively large, allowing the string peppers to leak through the gaps between the star wheels. Some stems that cannot pass through the gaps between the star wheels continue to travel backward until they are discharged, for example, by the debris conveyor belt 12 located at the rear end of the chassis 16, or they can be discharged directly.

[0071] The string peppers that have escaped through the star wheel bed 8 fall onto, for example, a fruit conveyor belt 9 that serves as a second conveying mechanism, and are further moved backward.

[0072] Furthermore, when the pepper fruits are separated from the vines, there will be a certain amount of impurities, and the impurities contained are mainly pepper leaves. Compared with peppers, pepper leaves are more easily blown away. Therefore, in a preferred embodiment, the fruit collection 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.

[0073] As mentioned above, for example, the fruit conveyor belt 9 conveys the line pepper backwards, and the line pepper may contain some pepper leaves or other relatively light impurities. Figures 1-3 It can be seen at the tail end of the chassis that the tail end of the fruit conveyor belt 9, which includes the rubber roller bed 13 and the forward lifting conveyor belt 15, serving as the third conveying mechanism, is low, especially the forward lifting conveyor belt 15. The fruit conveyor belt 9 first conveys the linear pepper fruits wrapped with pepper leaves to the transverse conveying roller 11, and the transverse conveying roller 11 then conveys the linear pepper fruits wrapped with pepper leaves to the forward lifting conveyor belt 15. The forward lifting conveyor belt 15 lifts the linear pepper fruits upward and conveys them to the rubber roller bed 13, and the rubber roller bed 13 conveys the linear pepper fruits forward.

[0074] Figures 1-3 In the process, due to the aforementioned height difference, the linear pepper fruit flow wrapped with pepper leaves will fly onto the transverse conveying roller 11 in the form of a curtain.

[0075] Furthermore, if Figure 1 and 4 As shown in the illustrated structure, a fan 10 is also provided on the chassis 16. The air outlet 17 of the fan 10 is directed toward the fruit curtain to blow out impurities in the fruit. The main component of the impurities is pepper leaves. The blowing direction of the air outlet 17 is from front to back. Impurities such as pepper leaves will be blown to the pepper field to improve the fertility of the pepper field.

[0076] exist Figure 3 In 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 conveying roller 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 pepper fruits are lifted to the upper side of the frame with the help of the forward lifting conveyor belt 15, and then the fruits are transported forward with the help of the rubber roller bed 13, and further the pepper fruits are unloaded onto the accompanying vehicle by lifting the unloading arm 14.

[0077] A fruit cabin can also be provided on the vehicle frame for temporarily storing the fruits, and then the pepper fruits can be unloaded onto a given transport vehicle by lifting the unloading arm 14 .

[0078] Figure 2 Shown is an example of including a third conveying mechanism, wherein the fruit collecting device has a fruit cabin and / or a lifting unloading arm.

[0079] exist Figure 1 and Figure 4 In the illustrated structure, the first conveying mechanism includes: Cutting platform frame; A header conveyor belt 3 is provided on the header frame to convey the harvested pepper plants obliquely backward and upward; and The seedling pressing device is located in the middle and rear part or the upper side of the rear part of the cutting platform conveyor belt 3 to feed the pepper plants with a given material thickness to the material inlet 58 of the vibration separator 6.

[0080] Furthermore, the seedling pressing device is a seedling pressing conveyor belt 5, and a seedling pressing space is formed between the lower belt surface of the seedling pressing conveyor belt 5 and the upper belt surface of the cutting platform conveyor belt, which is conducive to combing the fruit seedlings and can directly convey the fruit seedlings to the material inlet 58.

[0081] Furthermore, in order to more accurately transport the fruit seedling flow to the material inlet 58, the seedling pressing space gradually becomes smaller from front to back, and the seedling pressing conveyor belt 5 and the cutting platform conveyor belt 3 turn in opposite directions. At this time, the running directions of the lower belt surface of the seedling pressing conveyor belt 5 and the upper belt surface of the cutting platform conveyor belt 3 are the same.

[0082] Regarding the vibration separator 6, Figure 11 and Figure 12 The illustrated structure includes: A vibration roller 55 is mounted on the chassis 16 through a corresponding mounting base, and vibration fingers are distributed on the vibration roller 55; Vibratory separator bottom grid, such as Figure 11 and Figure 12The bottom grid 51 shown in FIG. 5 includes grid bars 67, an inlet-side fixing portion, and an outlet-side fixing portion. A plurality of the grid bars 67 are arranged in a predetermined direction and at predetermined intervals. The working surface of the grid bars 67 is provided with at least one convex portion that arches toward the side where the vibration roller 55 is located and avoids the vibration fingers. The inlet-side fixing portion is used to fix one end of the grid bar 67. The outlet-side fixing portion is used to fix the other end of the grid bar 67. Vibrators, such as Figure 11 The vibration mechanism 56 shown in FIG is installed at one end of the vibration roller 55.

[0083] Among them, there is a material channel between the bottom grid of the vibration separator and the vibration roller 55, and one end of the material channel is a material inlet 58 for receiving the first conveying mechanism, and the other end is a material outlet 59 for feeding the spiral roller; the separated string pepper fruits pass through the bottom grid of the vibration separator and fall onto the fruit collecting device.

[0084] Regarding the vibrator, as shown in the figure, the vibration mechanism 56 is a mechanism containing multiple vibration wheels. In some embodiments, a mechanism with only one vibration wheel can also be selected. The vibration wheel is an eccentric wheel and is coaxially arranged with the vibration roller 55.

[0085] In the foregoing, the bottom grid 51 has a convex portion on the grid bar 67 that protrudes toward the side where the vibration roller 55 is located. It has been verified that the provision of the convex portion makes it easier to separate the chili pepper fruits from the fruit vines. In comparison, in order to improve the efficiency of separating the chili pepper fruits from the fruit vines, the known vibrator bottom grids usually require the vibration roller 55 of the vibration separator 6 to have a stronger vibration capacity or the vibration fingers to have a stronger plucking capacity, which may result in a higher mechanical breakage rate of the chili peppers. However, the vibrator bottom grid based on the embodiment of the present invention can effectively reduce the mechanical breakage rate of the chili peppers.

[0086] Figure 11 The figure shows a schematic diagram of the assembly structure of a vibrator bottom grid (hereinafter referred to as bottom grid 51) on a vibrating separator 6 in one embodiment. In the figure, bottom grid 51 is fixed at both ends below the vibrating roller 55 of the vibrating separator 6. In this application scenario, bottom grid 51 is a curved grid, and under ideal conditions, its axis is collinear with the axis of the vibrating roller 55.

[0087] Vibrating fingers (also known as spring teeth) are distributed on the vibration roller 55. The vibrating fingers are distributed in multiple groups on the cylinder of the vibration roller 55 in a roughly vortex manner. The vibrating finger groups are staggered between the grid bars 67 of the bottom grid 51 in the axial direction of the vibration roller 55. When the vibrating fingers rotate to a predetermined angle, they can intervene in the grid grooves 68 (also known as the gaps between the grid bars) of the bottom grid 51. However, the amount of intervention is generally not large, about 1 to 1.5 times the thickness of the bottom grid.

[0088] The side of the bottom grid 51 facing the vibration roller 55 is its working surface. In the embodiment of the present invention, the working surface of the grid bars 67 of the bottom grid 51 is provided with the following Figure 14 The triangular barrier strip 66 illustrated in the figure, based on the description above, is offset between the vibrating fingers and the grille bars 67 in the axial direction of the vibration roller 55. Under this condition, there will be no motion interference between the vibrating fingers rotating with the vibration roller 55 and the bottom grille 51, and the axial vibrating fingers of the vibration roller 55 are roughly located in the middle of the grille groove 68. The width of the grille groove 68 is generally much larger than the axial dimension of the corresponding vibrating fingers of the vibration roller 55, thereby allowing, for example, the triangular barrier strip 66 to have a certain inclination angle relative to the plane with the axis of the vibration roller 55 as the normal.

[0089] The axial direction of the vibration roller 55 is the direction of the spoke, which is also called the left-right direction, the width direction or the transverse direction.

[0090] Accordingly, the feeding and discharging directions determine the front and rear directions, such as Figure 12 The side where the material inlet 58 is shown in the figure is generally called the front side, and the side where the material outlet 59 is generally called the rear side. The front-to-back direction is also called the longitudinal direction, length direction, head-to-tail direction, etc.

[0091] Figure 13 The bottom grid 51 of the middle vibrator has a plurality of grid bars 67. The number of grid bars 67 is irrelevant to the improved part of the present invention and belongs to the existing configuration, so it will not be described in detail here. 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 inclination value when, for example, the triangular barrier strip 66 is set with a certain inclination angle.

[0092] Obviously, the grid bars 67 are arranged axially of the vibrator, and the distance between their working surface and the axis of the vibration roller 55 is roughly equivalent to the maximum radial extension of the vibration fingers of the vibration roller 55, and slightly smaller than the top circle diameter of the vibration roller 55. This has been mentioned above and will not be repeated here.

[0093] exist Figures 11-14 In the illustrated structure, the working surface of the grid bar 67 is provided with three triangular barrier bars 66 that arch toward the side where the vibrating roller 55 of the vibrator is located and avoid the vibrating fingers provided on the vibrating roller 55.

[0094] Regarding the number of, for example, triangular barrier strips 66, Figure 13 and Figure 14It can be clearly seen that each grid bar 67 is provided with three triangular barrier bars 66, and the number and shape of the three triangular barrier bars 66 may be correlated to a certain extent. For example, when the height of the triangular barrier bars 66 is relatively low, the number of the triangular barrier bars 66 may 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, causing excessive impurities to pass through the bottom grid 51 and fall on, for example, a star wheel bed for transporting fruits located below the bottom grid 51. This will be specifically explained below and will not be repeated here.

[0095] In addition, if Figure 13 and Figure 14 As shown, both ends of the grille 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 as shown in the figure, so that the bottom grille 51 can be reliably fixed and the relative position between the bottom grille 51 and the vibration roller 55 can be relatively fixed.

[0096] Correspondingly, one end of the two ends of the grid bar 67 is fixed to the inlet-side fixing portion, and the other end is fixed to the outlet-side fixing portion. The grid bar 67 and the corresponding fixing portion are preferably fixed by welding.

[0097] Known pepper harvesters have a working width (also known as a 3.6-meter radius), though some have smaller radiuses for smaller plots, which can still reach 2.6 meters. Accordingly, the width of the bottom grille 51 corresponds to the radius, making it relatively large. Due to its relatively large dimensions, it is considered a large-scale component, making dimensional accuracy difficult to ensure and making assembly and disassembly very inconvenient. In particular, the fixing holes are prone to misalignment with the fixing holes on the machine body.

[0098] Furthermore, as use progresses, the bottom grille 51 is prone to local deformation or damage, and the problem of inaccurate alignment of the fixing holes after disassembly is particularly prominent. In view of this, in an embodiment of the present invention, the grille bars 67 are divided into several groups, that is, the assembly units are miniaturized, which makes it easier to ensure the dimensional accuracy of the smaller assembly units, thereby ensuring the assembly accuracy of the assembly units.

[0099] Since the number of fixing holes on a single assembly unit is relatively small, the assembly interference between these relatively few fixing holes is relatively small, thereby ensuring better assembly and disassembly flexibility.

[0100] At the same time, if a single assembly unit is damaged or deformed beyond tolerance, only the single assembly unit needs to be replaced or repaired.

[0101] Accordingly, if Figure 14As shown, each group of grille bars 67 is adapted with independent outlet side fixing parts and inlet side fixing parts, such as the inlet side fixing plate 65 and the outlet side fixing plate 69 shown in the figure, to form a grille bar assembly, which constitutes the aforementioned assembly unit.

[0102] In addition, as mentioned above, the pepper harvester has a variety of spokes, and different bottom grilles 51 need to be provided to meet the needs of different spokes. By unitizing the bottom grilles 51, a certain number of grille bar assemblies can be adapted to the bottom grilles 51 of different spokes, thereby having better adaptability.

[0103] The grille bar assembly comprising a bottom grille 51 can have a variety of specifications. The specifications herein refer to the number of grille bars 67. It has been demonstrated that two sizes of grille bar assemblies are sufficient for most bottom grille 51 assemblies: one with two grille bars 67 and the other with three grille bars 67.

[0104] Furthermore, in a more specific implementation, at least one group of two grille bars 67 is included, which is mainly used to adjust the width of the bottom grille 51 .

[0105] It should be noted that groups with two grille bars 67 generally offer better adaptability. Theoretically, the fewer grille bars 67 in a grille bar assembly, the better the adaptability. Obviously, when each grille bar assembly has only one grille bar 67, it can accommodate all widths, but this approach is obviously relatively difficult to assemble. By using a group with three grille bars 67 as the base group and groups with fewer grille bars 67 as adjustment groups, the overall assembly difficulty is not high while providing greater assembly flexibility.

[0106] exist Figure 14 In the illustrated structure, the inlet side fixing portion and the outlet side fixing portion are both plate-type fixing portions, such as the inlet side fixing plate 65 and the outlet side fixing plate 69 shown in the figure, which have a simple structure and can ensure strength.

[0107] The grid bars 67 and the inlet side fixing plate 65 are both made of metal materials, generally Q355 steel plates, which have good welding properties. The grid bars 67 can be fixed to the corresponding inlet side fixing parts and outlet side fixing parts by welding.

[0108] exist Figure 14 In the illustrated structure, three inlet side fixing holes 64 are opened on the inlet side fixing plate 65, and three outlet side fixing holes 7 are opened on the outlet side fixing plate 69. The inlet side fixing holes 64 and the outlet side fixing holes 70 are both long holes extending in the extension direction of the grille bar 67, so as to facilitate the adjustment of the assembly position of the grille bar assembly in the extension direction of the grille bar 67.

[0109] Regarding the shape of the convex portion, Figure 14 The illustrated structure shows a triangular barrier strip 66, which is a bent steel bar. The bent bar forming the triangular barrier strip 66 is V-shaped, or it can be an arc-shaped piece, with the V-shaped piece being preferred. Both the V-shaped and arc-shaped pieces have defined ends, allowing the protrusions to be welded to the corresponding grille bars 67.

[0110] Furthermore, the V angle of the convex portion constituting the V-shaped member is 60° to 150°; and the height of the convex portion is 22% to 27% of the radial length of the vibrating finger in the vibrator.

[0111] In general, 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 breakage rate is relatively low. Conversely, the efficiency of separating the fruit from the vine is relatively high, but the mechanical breakage rate is relatively high.

[0112] It should also be noted that, depending on the direction of the material, the side of the material can be relatively inclined ribs, while the back side can be other angles. Figure 14 The middle triangular barrier strips 66 are arranged roughly in the form of an isosceles triangle, and in some embodiments, one side of the material can be an inclined rib, and the right side in the figure is the back side. Whether it is inclined or not has little effect on the fruit falling off the vine.

[0113] When a plurality of, for example, triangular barrier strips 66 are provided on each grille bar 67 , the V-angle of the triangular barrier strip 66 is used as a parameter, and the plurality of triangular barrier strips 66 are in the extending direction of the grille bar 67 .

[0114] If arc-shaped convex portions are used, the convex portions arranged sequentially from the inlet side to the outlet side are arranged in a manner of gradually increasing height.

[0115] Furthermore, the number of protrusions on each grille bar 67 is no more than five or five pairs; accordingly, when the protrusions are arranged in pairs, the two protrusions are symmetrical about the middle plane passing through the axis of the grille bar; the middle plane has the axis of the vibrator as the normal; the angle between the protrusions arranged in pairs is less than or equal to 15° to avoid the vibrating fingers.

[0116] If the protrusions are evenly arranged in the extension direction of the grid bars 67, the left and right middle surfaces of all the protrusions are coplanar with the middle surface or are arranged in sequence with one of them tilted toward one side of the middle surface and the other tilted toward the other side of the middle surface.

[0117] It has been verified that when the convex parts on the grid bars 67 are arranged tilted to one side, the efficiency of separating the fruit from the fruit vines is relatively high. Under the condition of being able to effectively avoid the vibrating fingers, the convex parts can be arranged in sequence with one of them tilted toward one side of the middle surface and the other tilted toward the other side of the middle surface. This can ensure that the efficiency of separating the fruit from the fruit vines is relatively high under the condition of the same number of convex parts.

[0118] Correspondingly, the corresponding mid-plane is the left and right mid-plane of the grid bar 67 . Obviously, the left and right mid-plane are the mid-planes with the axis of the vibration roller 55 as the normal line.

[0119] As mentioned above, the spiral roller originated from the screw conveyor, but the spiral roller located on the pepper harvester conveys the pepper fruit vines with peppers. It can be set independently on the pepper harvester, or it can be configured at the lower level of the first-level separation equipment to constitute a secondary separation equipment for separating the fruit from the fruit vines.

[0120] The spiral roller includes a barrel and a spiral rotor, wherein the barrel is constructed as a shell-and-tube structure. In the illustrated embodiment of the present invention, the barrel of the shell-and-tube structure adopts an upper and lower split structure, but its inner contour is still preferably a cylindrical surface.

[0121] exist Figure 5 In the illustrated structure, in order to clearly show the configuration of the spiral rotor in the cylinder, a spiral roller cover 21 is omitted. Figure 5 The spiral roller shown is a double-rotor spiral roller, but a single-rotor spiral roller can also be used.

[0122] The barrel has a definite feed end, which corresponds to a feed port, referred to as an inlet, and a discharge end, which corresponds to a discharge port, referred to as an outlet. As mentioned above, the feed end is the front end, and the discharge end is the back end.

[0123] At the same time, it should be known that for the spiral roller, the fruit and the fruit vines are separated during the spiral conveying, and the separated fruit falls through the grid holes of the lower net bottom 30. There is generally a fruit conveying equipment below the net bottom 30, such as the second conveying mechanism mentioned above.

[0124] Furthermore, it is determined that the cylinder wall at the lower part of the cylinder body forms the net bottom 30 so as to let the separated pepper fruits fall down while leaving the fruit vines on the net bottom 30 .

[0125] Figure 8 This is a structural diagram of a mesh bottom unit. Since the axial length of the mesh bottom 30 is relatively large, it can be unitized to reduce the overall storage, transportation and assembly difficulty. Figure 8 The net bottom unit is an arc-shaped structure as a whole, which is more accurately called a cylindrical sector structure. When installed on the pepper harvester, the axis of the arc structure is collinear with the axis of the spiral rotor of the spiral roller.

[0126] Figure 8 In the figure, the main structure of the mesh bottom 30 is a grid structure, which is assembled by straight grid bars 42 parallel to the axis of the spiral rotor and arc grid bars 43 with the axis of the spiral rotor as the axis in a vertical and horizontal arrangement.

[0127] There are fixed plates 45 at both ends of the corresponding arc grid bars 43, and the corresponding two fixed plates 45 form left and right frames, while end plates are connected at both ends of the straight grid bars 42 to form front and rear frames, among which the end plates 41 are fan ring plates, and their inner edges are used to connect with the corresponding grid bars, generally by welding.

[0128] The fixing plate 45 is a straight strip with a plurality of fixing holes 45 provided thereon for fixing the net bottom 30 on the frame.

[0129] The fixing hole 45 can have an adjustment margin in the longitudinal direction, and is accordingly selected to be an elongated hole extending in this direction.

[0130] Figure 6 and Figure 7 A spiral rotor is shown. Unlike conventional spiral conveyors, the spiral rotor used on the spiral roller for separating pepper fruits from fruit vines has a relatively large spiral pitch angle. At the same time, in the embodiment of the present invention, all or most of the spiral parts used to construct the spiral rotor are constructed using a spiral rod 28. Obviously, the axis of the spiral rod 28 is the axis of the spiral rotor.

[0131] The mounting base of the spiral is the spindle 27, and both ends of the spindle 27 are mounted on a predetermined frame through a bearing seat. Figure 5 The illustrated structure does not show a frame. Since material loading and unloading must occur axially along the spiral rotor, the inlet bearing seat 19, for example, is typically connected via two or three radial rods. Material enters the barrel through the fan-shaped space between the radial rods. The outlet bearing seat 23 is similarly designed and will not be described in detail here.

[0132] In other embodiments, the spindle 27 can be extended to clear the inlet and outlet positions, so that it is not necessary to use radial rods to connect and support the corresponding bearing seats, for example Figure 6 In the embodiment, the tail end of the screw rod 28 is at a distance from the outlet end journal 38 for mounting the bearing, which is sufficient to allow the fruit vines to be delivered by twisting. The corresponding outlet end bearing seat 23 can be, for example, a split bearing seat directly mounted on the frame.

[0133] For the convenience of description, Figure 6 The leading helical blade 33 and the helical rod 28 shown in the figure are collectively referred to as a helix. The leading helical blade 33 and the helical rod 28 are both fixedly mounted on the spindle 27 and are preferably assembled by welding.

[0134] In an embodiment of the present invention, in order to overcome the problem that fruit vines are easily stuck or blocked when pouring into the barrel, the pitch of the front part of the spiral gradually increases from the feed end to the discharge end, forming a variable pitch section. In the process of the fruit vines entering the barrel, they are constrained by the barrel mouth and are initially combed, and the flow rate is controllable. If the variable pitch section exists, it is equivalent to gradually reducing the internal extrusion degree of the fruit vines during the movement, and the fruit vines have a certain amount of relaxation after entering the barrel, which is conducive to reducing or eliminating sticking, thereby avoiding the fruit vines directly blocking the barrel mouth.

[0135] Regarding the drive of the spiral rotor, a spiral roller motor 26 is connected to the tail end of the core shaft 27, that is, the rear end. For the example of a double spiral rotor, the two spiral rotors can be independently configured with a spiral roller motor 26, or they can share a spiral roller motor 26.

[0136] Furthermore, if a common spiral roller motor 26 is used, Figure 5 In the embodiment, a double sprocket 25 is provided at the tail end of one spiral rotor, a driven sprocket can be provided on the other spiral rotor, and transmission can be carried out between the two spiral rotors through a chain transmission mechanism.

[0137] Regarding the double sprocket 25, if it is only used to drive a driven object to rotate outward, it can be configured as a single driving sprocket.

[0138] Because the transmission chain in the chain transmission mechanism belongs to flexible member, has certain buffering capacity, for the material such as fruit seedling, adaptability is better. Similarly, for example, for spiral roller motor 26, then can adopt elastic coupling to be connected with mandrel 27.

[0139] exist Figure 5 The illustrated structure also includes a feed roller 18 located at the front of the feed end to assist in feeding the fruit seedlings. For granular materials, feeding is generally achieved by relying on the natural flow of the material under gravity. However, for feeding fruit seedlings, independent feeding equipment is often required to control the feeding speed within an appropriate range.

[0140] exist Figures 5 to 8 In the illustrated structure, the variable pitch section constitutes a leading spiral blade 33, which is used to replace part of the spiral rod 28 to facilitate combing the fruit vines.

[0141] contrast Figure 6 and Figure 8 The shape of the leading spiral blade 33 and the spiral rod 28 is that the leading spiral blade 33 has a complete spiral surface, while the spiral rod 28 is equivalent to a solid body with only a large diameter portion and a portion for connecting the spiral rod 28 to the spindle 27, such as the support rod 32 shown in the figure. The leading spiral blade 33 is conducive to combing the fruit seedlings while twisting them, so that the fruit seedlings are more smoothly introduced into the barrel.

[0142] At the same time, the leading spiral blade 33, i.e. the aforementioned variable pitch section, has a relatively complete spiral surface that is more conducive to the stretching of the fruit vines.

[0143] The spiral rod 28 does not have a complete spiral surface, but the fruit vine materials are entangled with each other, and the spiral rod 28 can still ensure that the fruit vines are twisted and sent backward. This is common knowledge in the field and will not be repeated here.

[0144] In the process of spirally twisting and sending the fruit vine backward, the pepper fruits fall down under the resistance of centrifugal force and the net bottom 30, and the fruit vine is finally discharged from the tail of the spiral roller.

[0145] The length of the leading spiral blade 33 should be neither too long nor too short. If it is too short, the leading effect will be ineffective or weak. If it is too long, it will function similarly to a conventional screw conveyor, limiting its ability to convey fruit vines and other materials. Therefore, the length of the leading spiral blade 33 is 10.5% to 14.2% of the axial length of the screw.

[0146] In order to improve the ability to move the fruit vines, the spiral rod 28 is provided with triangular or U-shaped protrusions 29 on the radial centrifugal side of the spiral. Figure 6 In the figure, the protrusion 29 is a U-shaped protrusion. For the triangular protrusion 29, the whole is actually a V-shaped structural member, and an arc structure is formed at the top due to bending.

[0147] For V-shaped structural parts, the V angle should not be less than 60°, otherwise the top will be relatively sharp.

[0148] The protrusion 29 is made by bending round steel and then fixed to the spiral rod 28 by welding. Accordingly, the spiral rod 28 is made of steel pipe and wound into a spiral shape.

[0149] When determining the technical parameters of the screw, the size of the protrusion 29, such as the major diameter of the screw, is not considered. The protrusion 29 is used as an accessory attached to the screw rod 28 and is not used as a design basis for the screw rod 28 during design.

[0150] Furthermore, the height of the protrusion 29 is one seventh to one fifth of the major diameter of the screw rod 28 .

[0151] In addition, the distribution density of the protrusions 29 on the corresponding spiral rod is 3 to 5 per meter, and the length of the spiral rod in this distribution density is the dimension in the axial direction of the spiral roller.

[0152] To minimize damage to the pepper fruit and reduce mechanical breakage, the leading spiral blade 33 has a rounded end, a cylindrical edge, or a welded cylindrical protective rigid strip. The ends of the leading spiral blade 33 clearly refer to the axial ends of the leading spiral blade 33. Since the leading spiral blade 33 is made of steel plate, the edges of the ends have cutting edges that can easily damage the pepper fruit. Therefore, in some embodiments, the leading spiral blade 33 can be directly rounded at its front edge.

[0153] And in Figure 6 In the illustrated structure, a protective round steel bar 36 is welded on the front plate edge of the leading spiral blade 33. The diameter of the protective round steel bar 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. When the protective round steel bar 36 is used, it is not affected by the thickness of the leading spiral blade 33, so it can have a relatively large diameter and is relatively blunt, and is not easy to damage the pepper fruit.

[0154] In addition, for example, the diameter of the protective round steel bar 36 should not be too large, and should not be greater than three times the thickness of the leading spiral blade 33.

[0155] If cylindrical edge is adopted, the steel plate can be rolled into a seamed steel tube, wherein the seam is used for the intervention of the front plate edge of the leading spiral blade 33, and then welded to form the cylindrical edge.

[0156] Regarding the other end of the leading spiral blade 33, that is, the rear end, refer to the processing method of the front end thereof, and can adopt, for example Figure 6 Measures such as the strengthening round steel bar 37 shown in are taken to alleviate the damage to the pepper fruit.

[0157] Regarding the basic parameters of the spiral, in a relatively preferred embodiment, the front pitch of the leading spiral 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.

[0158] Accordingly, the helical angle of the front portion of the leading helical blade 33 is 73° to 75°, and the helical angle of the rear portion is 40° to 46°; wherein, the helical angle of the front portion of the leading helical blade 33 is preferably 74.1°, and the helical angle of the rear portion is preferably 43°.

[0159] For the spiral rod 28 , an equidistant spiral is used, and the available pitch thereof is 5750 mm to 6250 mm, preferably 6000 mm, and the available helix angle of the spiral rod 28 is 12.2° to 12.6°, preferably 12.4°.

[0160] Furthermore, the major diameter of the leading spiral blade 33 is larger than the major diameter of the spiral rod 28, and the major diameter difference between 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. One is that, as mentioned above, the major diameter of the spiral rod 28 does not take into account the aforementioned protrusion 29, and the length of the protrusion 29 in the radial direction of the spiral is one-seventh to one-fifth of the major diameter of the spiral rod 28. The pepper vines twisted by the leading spiral blade 33 will tend to move along the inner wall of the cylinder due to the centrifugal effect under the condition of twisting force.

[0161] In view of the fact that pepper vines have poor spiral conveying capacity, a three-head spiral or a double-head spiral is used to convey the pepper vines in the embodiments of the present invention. The typical feature of the multi-head spiral is high conveying efficiency. With the help of this feature, the conveying capacity of the pepper vines is improved, so that the pepper fruits and the fruit vines are separated during transportation.

[0162] In addition, the multi-head spiral core shaft 27 is more evenly stressed and wears relatively less. For materials such as pepper seedlings that are difficult to transport, the use of a multi-head spiral can reduce the load on the core shaft 27 and have a longer service life.

[0163] In addition, the multi-head spiral can effectively reduce the pulsation effect during the material transportation process. Several spiral units transport materials alternately, making the flow of materials such as pepper seedlings smoother as a whole.

[0164] exist Figure 5 In the illustrated structure, the portion with the net bottom 30 and the rest of the barrel are separate parts, wherein the portion with the net bottom 30 constitutes a fixedly arranged net bottom assembly, and the rest constitutes the barrel cover, such as Figure 5 The spiral roller cover 21 shown in the figure is a split structure as a whole, which is similar to a split bearing seat, so that when the spiral roller cover 21 is opened separately, the part where local congestion occurs, for example, can be cleaned.

[0165] Even if it is to be cleaned as a whole, opening the spiral roller cover 21 from the upper side will make the cleaning relatively smooth.

[0166] Accordingly, if Figure 9 and Figure 10 FIG. 1 is a schematic structural diagram of a cover unit of a spiral roller cover 21. In the figure, a rotating shaft 48 is provided on one side of the cover unit. The rotating shaft 48 cooperates with a shaft hole provided on the frame to form a cylindrical hinge pair. A buckle 22 is provided on the other side.

[0167] Obviously, the axis of the rotating shaft 48 is parallel to the axis of the helical rotor.

[0168] Under normal circumstances, the barrel cover unit is put in place, then use for example buckle 22 that the barrel cover unit is locked on the frame between for example two barrel covers. And when needs are maintained, release the locking of buckle 22, upwards open the barrel cover unit and can clean up in the tube.

[0169] Buckle 22 is a kind of fast and convenient fixing method, and for example more common buckle etc. all belong to this type of fixing method. Also can adopt screw connection etc., for example screw can adopt butterfly nut, also can fasten or remove.

[0170] The barrel cover is divided into several sections, which can be opened and disposed of in sections. Accordingly, each section has an independent fixing portion.

Claims

1. A line pepper harvester, characterized in that: include: chassis; A header, arranged at the front end of the chassis, for harvesting pepper plants; A first conveying mechanism is provided at the rear side of the harvesting platform to convey the pepper plants harvested by the harvesting platform to the chassis; A vibrating separator is provided on the chassis, receives the first conveying mechanism, and is used for primary separation of the pepper fruits from the fruit vines, and has a first row of vine openings and a first row of fruit openings; The spiral roller is arranged on the chassis and receives the first row of seedling openings for secondary separation of the peppers from the fruit seedlings. The spiral roller has a second row of seedling openings and a second row of fruit openings. as well as The fruit collecting device is used to receive the pepper fruits discharged from the first and second rows of fruit openings.

2. The chili pepper harvester according to claim 1, characterized in that: The vibrating separator and the spiral roller are arranged in the longitudinal direction of the chassis; Correspondingly, the fruit collecting device comprises a second conveying mechanism, which is located below the vibrating separator and the spiral roller.

3. The chili pepper harvester according to claim 2, characterized in that: The fruit collecting device further comprises 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 the fruit backward and the third conveying mechanism conveys the fruit forward; There is a height difference between the end of the second conveying mechanism and the material receiving end of the transverse conveying mechanism, so as to form a fruit curtain when the transverse conveying mechanism receives the material; Correspondingly, a fan is also provided on the chassis, and the air outlet of the fan rushes towards the fruit curtain to blow out impurities in the fruit.

4. The chili pepper harvester according to claim 2 or 3, characterized in that: The fruit collecting device comprises a fruit cabin and / or a lifting and unloading arm.

5. The chili pepper harvester according to claim 1, characterized in that: The first conveying mechanism comprises: Cutting platform frame; a header conveyor belt, provided on the header frame, for conveying the harvested pepper plants obliquely backward and upward; and The seedling pressing device is located in the middle and rear part or the upper side of the rear part of the cutting platform conveyor belt, so as to feed the pepper plants with a given material thickness backward to the material inlet of the vibration separator.

6. The chili pepper harvester according to claim 5, characterized in that: The rice seedling pressing device is a rice seedling pressing conveyor belt, and a rice seedling pressing space is formed between the lower belt surface of the rice seedling pressing conveyor belt and the upper belt surface of the cutting platform conveyor belt.

7. The chili pepper harvester according to claim 6, characterized in that: The rice seedling pressing space gradually becomes smaller from front to back, and the rice seedling pressing conveyor belt and the cutting platform conveyor belt rotate in opposite directions.

8. The chili pepper harvester according to claim 1, characterized in that: The vibrating separator comprises: A vibration roller is mounted on the chassis via a corresponding mounting base, and vibration fingers are distributed on the vibration roller; The bottom grid of the vibrating separator comprises grid bars, an inlet-side fixing portion, and an outlet-side fixing portion; wherein a plurality of the grid bars are arranged in a predetermined direction and at a predetermined interval, and the working surface of the grid bars is provided with at least one convex portion that arches toward the side where the vibrating roller is located and avoids the vibrating fingers; the inlet-side fixing portion is used to fix one end of the grid bar; and the outlet-side fixing portion is used to fix the other end of the grid bar. A vibrator, mounted on one end of the vibration roller; Among them, there is a material channel between the bottom grid of the vibration separator and the vibration roller, and one end of the material channel is a material inlet for receiving the first conveying mechanism, and the other end is a material outlet for feeding the spiral roller; the separated string pepper fruits pass through the bottom grid of the vibration separator and fall onto the fruit collecting device.

9. The chili pepper harvester according to claim 8, characterized in that: The grille bars are divided into groups; Accordingly, each group of grid bars is adapted with outlet-side fixing portions and inlet-side fixing portions that are independent of each other.

10. The chili pepper harvester according to claim 9, characterized in that: Each set of grille bars has two or three grille bars.

11. The chili pepper harvester according to claim 10, characterized in that: At least one group of two grille bars is included.

12. The chili pepper harvester according to any one of claims 9 to 11, characterized in that: The inlet side fixing portion and the outlet side fixing portion are plate-type fixing portions; The corresponding grid bars are welded to the corresponding inlet-side fixing portion and outlet-side fixing portion.

13. The chili pepper harvester according to claim 12, characterized in that: The fixing holes on the plate-type fixing portion are elongated holes extending in the extending direction of the grid bars.

14. The pepper harvester according to claim 8, characterized in that: The convex portion is an arc-shaped or V-shaped member formed by bending a rod, and both ends of the convex portion are fixed to corresponding grille bars; The V angle of the convex portion constituting the V-shaped member is 60° to 150°; The height of the convex portion is 22% to 27% of the radial length of the vibrating finger in the vibrating separator.

15. The chili pepper harvester according to claim 14, characterized in that: The number of protrusions on each grille bar shall not exceed five or five pairs; When the convex parts are arranged in pairs, the two convex parts are symmetrical about the middle plane passing through the axis of the grid bar; the middle plane takes the axis of the vibration separator as the normal; the angle between the convex parts arranged in pairs is less than or equal to 15 degrees; If the convex portions are evenly arranged in the extension direction of the grille bars, the left and right middle surfaces of all the convex portions are coplanar with the middle surface or are arranged in sequence with one convex portion tilted toward one side of the middle surface and the other convex portion tilted toward the other side of the middle surface.

16. The chili pepper harvester according to claim 1, characterized in that: The spiral roller comprises: The barrel forms a shell-and-tube structure, one end of which is the feed end and the other end is the discharge end, and the barrel wall at the lower part of the barrel is determined to form a net bottom to drain the separated pepper fruits; A spiral rotor having a spindle and a spiral mounted on the spindle, wherein the pitch of the front portion of the spiral gradually increases from the feed end to the discharge end, forming a variable pitch section; the axis of the spiral rotor is collinear with the axis of the barrel, and both ends are mounted on the chassis via bearing seats; and The spiral roller motor is mounted on the chassis, and its output drives the spiral rotor.

17. The chili pepper harvester according to claim 16, characterized in that: The barrel has two parallel arranged spiral rotors, and the corresponding spiral rotors correspond to the barrel one by one.

18. The chili pepper harvester according to claim 16 or 17, characterized in that: The utility model also comprises a feeding roller arranged at the front side of the feeding end.

19. The chili pepper harvester according to claim 16, characterized in that: 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 on the spindle.

20. The chili pepper harvester according to claim 19, characterized in that: The length of the leading spiral blade is 10.5% to 14.2% of the axial length of the spiral.

21. The chili pepper harvester according to claim 19 or 20, characterized in that: The spiral rod is provided with triangular or U-shaped protrusions on the centrifugal side of the spiral; 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 spiral rod is 3 to 5 per meter, and the length of the spiral rod in this distribution density is the dimension in the axial direction of the spiral roller.

22. The chili pepper harvester according to claim 19, characterized in that: The end of the leading spiral blade is rounded, has a cylindrical edge or is welded with a cylindrical protective rigid strip.

23. The chili pepper harvester according to claim 19, characterized in that: The leading spiral blade has a front pitch of 550 mm to 650 mm and a rear pitch of 1900 mm to 2300 mm; Accordingly, the helix angle of the leading spiral blade is 73°~75° at the front and 40°~46° at the rear; 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 chili pepper harvester according to claim 23, characterized in that: The major diameter of the leading spiral blade is greater than the major diameter of the spiral rod, and the major diameter difference between the leading spiral blade and the spiral rod is one-sixth to one-third of the major diameter of the spiral rod.

25. The chili pepper harvester according to claim 16, characterized in that: The helix is a triple-start helix or a double-start helix.

26. The chili pepper harvester according to claim 16, characterized in that: The portion with the net bottom and the rest of the cylinder body are separate parts, wherein the portion with the net bottom constitutes a fixedly arranged net bottom assembly, and the rest constitutes the cylinder cover; Correspondingly, the barrel cover is provided with a hinge shaft on one side and a fixing portion on the other side, so that when the fixing portion is released, the barrel cover can be opened to one side with the hinge shaft as the axis.

27. The chili pepper harvester according to claim 26, characterized in that: The sleeve cover has a plurality of segments; Accordingly, each segment has an independent fixing portion.

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

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