Pull-type ridge-imitating sweet potato seedling vine harvester and method

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a pull-type ridge-imitating sweet potato seedling vine harvester and a method, the pull-type ridge-imitating sweet potato seedling vine harvester comprises a harvester shell, a seedling picking and cutting mechanism, a chopping mechanism, an auger mechanism and a throwing and blowing fan are sequentially arranged in the harvester shell, the seedling picking and cutting mechanism is used for picking seedlings and cutting the seedlings simultaneously, and the chopping mechanism is used for chopping the seedlings; broken seedling vines enter the auger mechanism after being crushed by the chopping mechanism, and then are conveyed to the throwing fan; the seedling picking and cutting mechanism is in butt joint with the front side of the chopping mechanism and comprises a seedling picking shaft, the height of the seedling picking shaft is matched with the height of ridge backs, disc cutters are arranged at the positions, close to the two ends, of the seedling picking shaft, and seedling picking rods are arranged on the inner sides of the disc cutters so as to pick creeping seedling vines in furrows or between ridges to the chopping mechanism; the disc cutter is arranged to cut off twined seedling vines at furrows, so that the situation that the seedling vines cannot be picked into the chopping mechanism by the seedling picking rod due to twining is prevented, and it is guaranteed that the seedling vines at the positions where the harvester passes can be picked up, chopped and then collected.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a towed ridge-imitation sweet potato vine harvester and a method. Background Art

[0002] In recent years, the sweet potato planting area has continued to increase, and the sweet potato yield has gradually increased. Among them, the sweet potato vines are rich in nutrients such as protein, crude fat, crude fiber, minerals and vitamins, which makes the sweet potato vines have high feed value and can increase the growth rate and yield of livestock and poultry. Under the current harvesting mode, manual cutting of vines is mostly used, which is labor-intensive and inefficient, seriously affecting the normal harvest of sweet potatoes. Although there are some agricultural machinery for processing potato vines, they are basically vine killing machines, which only cut and crush the vines and return them to the field. Therefore, the chopped vines cannot be put away, and the vines cannot be better utilized; secondly, the vines that are broken and scattered in the field are not cleaned up, which will also bring inconvenience to the subsequent mechanized harvesting of sweet potatoes.

[0003] The inventors have found that the main reason why the mechanized harvesting method of sweet potato vines cannot be popularized at present is that the vines of sweet potatoes are long-vine varieties, and the vines will entwine and spread on the ridges and ridge backs. Some sweet potato vines will even extend from a group of ridge backs through the ridges to the adjacent ridge backs and entwine with other sweet potato vines, making mechanized harvesting difficult. The entangled sweet potato vines are difficult to be picked up by the vine lifting mechanism of the current harvesting equipment to the crushing mechanism inside the shell. Therefore, the vines that are entangled and spread are an important factor affecting the mechanized harvesting of sweet potato vines. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a towed ridge-like sweet potato vine harvester and method, in which disc cutters are provided near the two ends of the vine lifting shaft to cut off the entangled vines at the ridge furrows, preventing the vines from being entangled and unable to be picked up by the vine lifting rod into the shredding mechanism, thereby ensuring that the vines at the position where the harvester passes can be picked up, shredded and collected.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, a trailer-type ridge-like sweet potato vine harvester comprises a harvester housing, the front end of which is used to be suspended on a walking device; a vine-lifting and cutting mechanism, a chopping mechanism, an augers mechanism and a throwing blower are sequentially arranged inside the harvester housing; the vine-lifting and cutting mechanism is used to break vines while lifting vines, and the broken vines are broken by the chopping mechanism and then enter the augers mechanism, and then are sent to the throwing blower;

[0007] The seedling lifting and cutting mechanism is docked at the front side of the shredding mechanism, and includes a seedling lifting shaft arranged in the harvester housing. The height of the seedling lifting shaft is adapted to the height of the ridge back. Disc cutters for cutting off the seedling vines entangled in the ridge furrows are provided near the two ends of the seedling lifting shaft, and a seedling lifting rod is provided on the inner side of the disc cutter to lift the creeping seedling vines in the ridge furrows or between the ridges to the shredding mechanism for crushing.

[0008] As a further implementation method, a plurality of groups of cutting knives are symmetrically provided on the seedling lifting shaft, and the cutting knives are located between two adjacent groups of seedling lifting rods.

[0009] As a further implementation method, the cutting knives are arranged in pairs on the seedling raising shaft through a cutting knife support frame; the circumferential positions of multiple groups of cutting knives on the seedling raising shaft are different, and the plane where the blades of the cutting knives are located is parallel to the axis of the seedling raising shaft.

[0010] As a further implementation method, a fixed knife is provided inside the harvester shell corresponding to the shredding mechanism, and the fixed knife is arranged along the width direction of the harvester shell; the shredding mechanism includes a shredding shaft, and multiple groups of moving blades are arranged on the shredding shaft; a first pulley and a first sprocket are provided at one end of the shredding shaft, and a second pulley is provided at the other end.

[0011] As a further implementation method, the seedling lifting rods arranged at different positions on the seedling lifting shaft are staggered in the circumferential direction; and the spacing between adjacent seedling lifting rods is adapted to the spacing between adjacent moving blades, so that the seedling lifting rods can cross and pass through the gaps between the moving blades.

[0012] As a further implementation method, the seedling lifting rod is provided with two groups and is arranged near the end of the seedling lifting shaft, and the cutting knife is located in the middle of the seedling lifting shaft;

[0013] Alternatively, the seedling lifting rods are provided with three groups, two of which are arranged near the ends of the seedling lifting shafts, and the other group is arranged in the middle of the seedling lifting shafts, and the cutting knife is arranged between two adjacent groups of seedling lifting rods; the length of the seedling lifting shafts is adapted to the lengths spanned by the three adjacent groups of ridges.

[0014] As a further implementation method, the auger mechanism includes an auger shaft, the throwing fan includes a fan shaft, the shredder shaft cooperates with the output end of the reduction gearbox located at the front end of the harvester housing through a first pulley and a corresponding belt, and the input end of the reduction gearbox is connected to the transmission structure of the walking device; the shredder shaft also cooperates with the second sprocket extending from the end of the seedling picking shaft to the outside of the harvester housing through a first sprocket to drive the seedling picking shaft to rotate; the shredder shaft cooperates with one end of the auger shaft through a second pulley to drive the auger shaft to rotate, and the other end of the auger shaft drives the fan shaft to rotate through a pulley; the main bodies of the seedling picking shaft, shredder shaft, auger shaft and fan shaft are all arranged in the harvester housing, and are cooperated with the harvester housing through bearings at corresponding positions near the ends.

[0015] As a further implementation method, a spiral auger blade is provided on the auger shaft, and a push blade is provided near one end, and the chopped vines are sent to the push blade through the spiral auger blade; a fan blade is provided on the fan shaft; and the throwing fan is arranged on one side of the harvester housing in the width direction.

[0016] As a further implementation method, the end of the throwing fan sends the vines to the collection box through a throwing tube. The collection box is arranged on the top of the harvester shell and one side is rotatably connected to the support frame above the harvester shell. A turning cylinder is also provided at the support frame. The output end of the turning cylinder is connected to the collection box to turn the collection box over.

[0017] In a second aspect, a method for harvesting sweet potato vines by using a trailer-mounted ridge-like sweet potato vine harvester as described above is provided, comprising the following steps:

[0018] The walking equipment drives the sweet potato vine harvester forward, the vine picking shaft rotates and cuts off the entangled vines at the ridges through the disc cutter, the vine picking rod picks up the cut vines to the shredding mechanism for crushing, the crushed vines enter the auger mechanism and are transported to the throwing fan, and then the vines are thrown to the aggregate box for collection.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The seedling lifting shaft of the present invention is provided with disc cutters near the two end portions, and a seedling lifting rod is provided inside the disc cutters to lift the creeping seedlings in the furrows or between the ridges to the shredding mechanism for crushing; the disc cutters can cut off the entangled seedlings in the furrows to prevent the seedlings from being unable to be lifted into the shredding mechanism by the seedling lifting rod due to entanglement, thereby ensuring that the seedlings at the position where the harvester passes can be lifted and collected after being shredded.

[0021] 2. The seedling lifting shaft of the present invention is also provided with a cutting knife, the height of the cutting knife is adapted to the ridge back, and cooperates with the disc cutter to cut off the seedling vines on the ridge ditch and the ridge back, so that the seedling lifting rod can better perform the seedling lifting work.

[0022] 3. The seedling lifting rods of the present invention are staggered, and the spacing between adjacent seedling lifting rods is adapted to the spacing between adjacent moving blades, so that the seedling lifting rods can cross and pass through the gaps between the moving blades, so that the seedlings lifted by the seedling lifting rods can smoothly reach the shredding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] Figure 1 1 is a schematic diagram of the overall structure of a towed ridge-like sweet potato vine harvester according to an embodiment of the present invention;

[0025] Figure 2 1 is a first axonometric schematic diagram of a towed ridge-like sweet potato vine harvester according to an embodiment of the present invention;

[0026] Figure 3 2 is a second axonometric schematic diagram of the trailer-type ridge-imitation sweet potato vine harvester according to an embodiment of the present invention;

[0027] Figure 4 2 is a schematic diagram of the main structure of a trailer-type ridge-like sweet potato vine harvester according to an embodiment of the present invention;

[0028] Figure 5 2 is a schematic diagram of the overall structure of the seedling picking and cutting mechanism in an embodiment of the present invention;

[0029] Figure 6 is a schematic diagram of the overall structure of the shredding mechanism in an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the overall structure of the auger mechanism in the embodiment of the present invention;

[0031] Figure 8 It is a schematic diagram of the overall structure of the ejection fan in an embodiment of the present invention.

[0032] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0033] Wherein: 1. tractor, 2. suspension frame, 3. reduction box, 4. harvester housing, 5. seedling picking and cutting mechanism, 6. chopping mechanism, 7. auger mechanism, 8. throwing fan, 9. throwing cylinder, 10. collecting box, 11. turning cylinder; 41. fixed knife; 42. support frame, 43. mounting seat; 51. seedling picking shaft, 52. flange, 53. second sprocket, 54. cutting knife, 55. seedling picking rod, 56. disc cutter; 61. shredder shaft, 62. knife seat, 63. moving blade, 64. first pulley, 65. first sprocket; 66. second pulley; 71. auger shaft, 72. spiral auger blade, 73. push blade, 74. third pulley, 75. fourth pulley, 76. flange; 81. fan shaft, 82. fan blade, 83. flange, 84. fifth pulley. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0035] Embodiment 1

[0036] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 8As shown, a towed imitation ridge sweet potato vine harvester includes a harvester housing 4 whose front end is used to hang on a walking device, and a vine lifting and cutting mechanism 5, a chopping mechanism 6, an agitator mechanism 7 and a throwing blower 8 are arranged in sequence inside the harvester housing 4.

[0037] like Figure 1 As shown, the walking device is preferably a tractor 1, and a suspension frame 2 is provided at the top front end of the harvester housing 4, which is connected to the tractor suspension arm through the suspension frame 2. A reduction box 3 is also provided at the top front end of the harvester housing 4, and the reduction box 3 is connected to the main transmission box of the tractor 1 through the universal drive shaft of the tractor 1 to realize power transmission to the harvester.

[0038] like Figure 1 As shown, the seedling picking and cutting mechanism 5, the chopping mechanism 6, and the auger mechanism 7 are arranged from front to back inside the harvester housing 4, and the throwing fan 8 is located on one side of the harvester housing 4 in the width direction and above the auger mechanism 7. The end of the throwing fan 8 sends the seedlings to the collecting box 10 through the throwing tube 9.

[0039] like Figure 2-Figure 4 As shown, the material collection box 10 is arranged at the support frame 42 at the top position of the harvester housing 4, and the support frame 4 is welded by multiple cross bars and vertical bars. The support frame 42 at the front and rear sides of the material collection box 10 has an inclined rod connecting the cross bar and the vertical rod, and a mounting seat 43 is provided on the inclined rod. The mounting seat 43 is hinged to the bottom end of the flip cylinder 11, and the top output ends of the two flip cylinders 11 are connected to the front and rear side walls of the material collection box 10 respectively.

[0040] On one side of the width direction of the aggregate box 10 are the throwing fan 8 and the throwing cylinder 9, and on the other side is the vertical rod of the support frame 42. The aggregate box 10 is hinged to the top of the vertical rod. The turning cylinder 11 can turn the aggregate box 10 over, so that the crushed sweet potato vines collected in the aggregate box 10 can be poured out to the designated position.

[0041] like Figure 2 As shown, a fixed knife 41 is provided at the top position of the harvester housing 4 corresponding to the chopping mechanism, and the fixed knife 41 is arranged along the width direction of the harvester housing. The fixed knife 41 is used to cooperate with the moving blade to chop the sweet potato vines.

[0042] like Figure 6 As shown, the shredding mechanism 6 includes a shredding shaft 61, on which a plurality of groups of moving blades 63 are arranged. Specifically, a plurality of groups of annular blade seats 62 are fixed along the length direction on the circumference of the shredding shaft 61, and a plurality of moving blades 63 are fixed to each blade seat along the circumferential direction by bolts. In this example, four moving blades 63 are arranged on each blade seat and are in the same plane.

[0043] A first pulley 64 and a first sprocket 65 are provided at one end of the shredder shaft 61, and a second pulley 66 is provided at the other end. A flange with a bearing is provided on the shredder shaft 61 inside the second pulley 66 and the first sprocket 65, and the shredder shaft 61 is mounted on the harvester housing 4 through the flange with the bearing. Specifically, the flange with the bearing is fixedly connected to the side wall of the harvester housing 4 in the width direction, and the shredder shaft 61 can be rotated in the flange through the bearing.

[0044] One end of the shredder shaft 61 having a first sprocket 65 extends out of the flange and extends to the outside of the harvester housing 4. The first sprocket 65 is located inside the first pulley 64. Figure 6 shown.

[0045] like Figure 7 As shown, the auger mechanism 7 includes an auger shaft 71 , and a third pulley 74 and a fourth pulley 75 are respectively provided at both ends of the auger shaft 71 . The inner sides of the third pulley 74 and the fourth pulley 75 are also provided with flanges 76 with bearings to realize the rotation of the auger shaft 71 .

[0046] A spiral auger blade 72 is provided on the auger shaft 71. A pushing blade 73 is provided at one end of the spiral auger blade 72 close to the throwing fan. The pushing blade 73 is a rectangular plate structure. The shredding mechanism 6 chops the sweet potato vines and sends them to the auger mechanism 7. The auger shaft 71 rotates to enable the spiral auger blade 72 to transport the chopped sweet potato vines horizontally to the pushing blade 73. Under the action of the pushing blade 73, the chopped sweet potato vines can be sent upward to the throwing fan 8, thereby realizing that the end of the throwing fan 8 sends the vines to the collecting box 10 through the throwing cylinder 9.

[0047] like Figure 8 As shown, the throwing fan 8 includes a fan shaft 81, and flanges with bearings are provided at both ends of the fan shaft 81. A fifth pulley 84 is provided on the fan shaft 81 outside one of the flanges 83, and a fan blade 82 is provided on the fan shaft 81 for achieving seedling throwing.

[0048] like Figure 5 As shown, flanges 52 with bearings are also provided at both ends of the seedling lifting and cutting mechanism 5. The purpose of the flanges 52 with bearings is to connect with the side wall of the harvester housing 4 and rotatably support the rotating shaft body, so as to realize the rotation of the seedling lifting shaft 51.

[0049] A second sprocket 53 is provided on the outer side of the flange 52 at one end of the seedling lifting shaft 51 , and the second sprocket 53 is provided at one end of the seedling lifting shaft 51 close to the throwing blower 8 .

[0050] like Figure 1-Figure 4As shown, the main bodies of the seedling picking shaft 51, the shredder shaft 61, the auger shaft 71, and the fan shaft 81 are all arranged in the harvester housing 4, and the pulleys and sprockets are correspondingly arranged on the outside of the harvester housing 4. The tractor power is transmitted to the reduction box 3, and the reduction box 3 cooperates with the first pulley 64 through the main pulley and the belt to realize the rotation of the shredder shaft 61. The shredder shaft 61 cooperates with the second sprocket through the first sprocket 65, the chain, and the second sprocket to realize the rotation of the seedling picking shaft 51. The other end of the shredder shaft 61 extends outside the harvester housing 4 and cooperates with the third pulley 74 through the second pulley 66 and the belt to realize the rotation of the auger shaft 71. The other end of the auger shaft 71 cooperates with the fifth pulley 84 through the fourth pulley 75 to realize the rotation of the fan shaft 81. The above is the power transmission structure setting of this example.

[0051] Through the transmission of each mechanism, the vine picking and cutting mechanism 5 picks the sweet potato vines into the inside of the harvester housing 4, and then is chopped by the shredding mechanism 6, transported by the auger mechanism 7, thrown by the throwing fan 8, and finally sent to the collection box 10 through the throwing cylinder 9, and finally poured out of the collection box 10 through the turning cylinder 11. It should be noted that the dimensions of the throwing cylinder 9 and the collection box 10 need to be calculated to ensure that the collection box 10 will not be interfered by the throwing cylinder 9 when it is turned over.

[0052] It can be understood that the seedling picking and cutting mechanism 5, the chopping mechanism 6, the auger mechanism 7 and the throwing blower 8 all share a harvester housing 4, and each mechanism is arranged in a different chamber position in the harvester housing 4, but each chamber is connected. The throwing blower 8 is arranged at the side position of the harvester housing 4 in the width direction to reduce the overall length of the equipment and reduce the turning radius.

[0053] Since the vines of sweet potatoes are long-vine varieties, they will entwine and spread on the furrows and ridge backs, and some vines will even extend from one group of ridge backs through the furrows to the adjacent ridge backs and entwine with other vines, making it difficult for the vine lifting and cutting mechanism 5 to lift the sweet potato vines into the harvester body 4. In order to solve this problem, a cutting knife structure is added to the vine lifting and cutting mechanism 5 of this embodiment to enable the vine lifting and cutting mechanism to lift the seedlings and break the seedlings at the same time.

[0054] like Figure 5 As shown, the seedling lifting and cutting mechanism 5 is docked at the front side of the chopping mechanism 6, and includes a seedling lifting shaft 51 arranged in the harvester housing 4, and the height of the seedling lifting shaft 51 is adapted to the height of the ridge back.

[0055] Disc cutters 56 for cutting off the entangled vines at the ridges are provided near the two end portions of the seedling lifting shaft 51. The disc cutters are located on the inner side of the flange 52. The lower ends of the disc cutters 56 are located to fit in with the bottom surface of the ridges and can cut off the vines at the ridges. The purpose is to cut off the vines extending from one set of ridge backs to another ridge back, to ensure that the vines between the two sets of disc cutters 56 are separated from the vines outside the disc cutters 56 when the harvester passes by, and the vines between the two sets of disc cutters 56 are effectively lifted to the shredding mechanism 6.

[0056] The provision of the disc cutter 56 solves the problem that some sweet potato vines extend from one group of ridges through the ridge furrows to the adjacent ridges and become entangled with other sweet potato vines, making it difficult for the vine picking and cutting mechanism 5 to pick the sweet potato vines into the harvester housing 4.

[0057] like Figure 5 As shown, a lifting rod 55 is provided inside the disc cutter 56 to lift the creeping vines in the furrows or between the ridges to the chopping mechanism 6 for crushing. A plurality of groups of cutting knives 54 are symmetrically provided on the lifting shaft 51. The cutting knives 54 are located between two adjacent groups of lifting rods 55. The cutting knives 54 are arranged in pairs on the lifting shaft 51 through a cutting knife support frame. The cutting knives 54 are triangular in shape, with blades on the sides, and are arranged as shown in FIG. Figure 5 shown.

[0058] In this example, the seedling lifting rod 55 is provided with two groups and is arranged near the end of the seedling lifting shaft 51. The cutting knife 54 is located in the middle of the seedling lifting shaft, and the height is adapted to the height of the ridge back. The cutting knife 54 is used to cut the seedling vines at the ridge back; the circumferential positions of the multiple groups of cutting knives 54 on the seedling lifting shaft 51 are different, and the plane where the blades of the cutting knives are located is parallel to the axis of the seedling lifting shaft. In this example, three groups of cutting knives 54 are arranged, and each group of cutting knives 54 includes four cutting knife blades, which are arranged in pairs on a T-shaped cutting knife support frame. The angle of each group of cutting knives 54 on the seedling lifting shaft is 180°, and the cutting knives 54 of different groups are arranged in an interlaced manner along the circumferential direction, and the angle is 90°. This arrangement allows the seedling vines passing through here to be further cut on the basis of the disc cutter 56, so that the seedling vine section becomes shorter, further improving the seedling lifting effect, ensuring that the seedling vines entering between the disc cutters 56 can smoothly enter the chopping mechanism 6 after being cut, and will not cause the seedling lifting shaft 51 to fail or lock due to problems such as the vine winding.

[0059] like Figure 5 As shown, in this example, two groups of seedling lifting rods 55 are arranged inside the disc cutter near the end of the seedling lifting shaft 51, with multiple rods in each group. The seedling lifting rod is a long rod structure, fixed to the seedling lifting shaft through a mounting seat, and has a length slightly smaller than the diameter of the disc cutter, and can lift the seedling vines inside the disc cutter.

[0060] Each group of multiple seedling lifting rods 55 are arranged in an annular staggered manner on the seedling lifting shaft 51. The seedling lifting rods 55 have a set length and can extend to the moving blade, and the spacing between adjacent seedling lifting rods 55 is adapted to the spacing between adjacent moving blades, so that the seedling lifting rods can cross and pass through the gaps between the moving blades, so that the seedlings lifted by the seedling lifting rods 55 can smoothly reach the shredding mechanism 6.

[0061] In a preferred example, a middle group of seedling lifting rods 55 is also provided on the seedling lifting shaft 51, and there are three groups of seedling lifting rods 55 in total. The middle group of seedling lifting rods 55 have the same structural arrangement as the other two groups of seedling lifting rods 55 located at the ends of the seedling lifting shaft 51, but the middle group of seedling lifting rods 55 are arranged in the middle position of the seedling lifting shaft 51, and the length of the middle group of seedling lifting rods 55 is shorter than the length of the other two groups of seedling lifting rods 55, so that the middle group of seedling lifting rods 55 can pass over the top of the ridge back and lift the seedlings at the ridge back, further improving the seedling lifting effect. At this time, there are cutting knives 54 between two adjacent groups of the three groups of seedling lifting rods 55, so the cutting knives 54 are arranged on both sides of the middle group of seedling lifting rods 55, and there are two groups in total.

[0062] Furthermore, in the above preferred example, further improvements can be made so that the length of the seedling lifting shaft 51 is adapted to the length of the three adjacent groups of furrows, so that the harvester can simultaneously lift the seedlings on two ridges and three furrows in one pass, doubling the work efficiency.

[0063] Further, the lengths of the three sets of seedling lifting rods 55 are adjusted according to the actual working conditions. When the seedlings on two ridge backs and three ridge furrows are lifted at the same time, the lengths of the three sets of seedling lifting rods 55 can be set to Figure 5 On this basis, another group of short-pole rice-lifting rods 55 can be added between two adjacent groups of long-pole rice-lifting rods, for a total of five groups, that is, arranged in the form of long-short-long-short-long, so as to simultaneously lift the rice vines on two ridge backs and three furrows.

[0064] The seedling lifting and cutting mechanism of this example can complete the side cutting work between ridges, and prevent the problem that the seedling lifting rod cannot lift the seedling vines due to factors such as continuous extension and entanglement. The position relationship between the disc cutter 56, the seedling lifting rod 55 and the cutting knife 54 is a cross-sectional structure of the contour ridge, which can efficiently and reliably lift the creeping seedlings in the furrows and between the ridges without damaging the sweet potatoes.

[0065] The trailer-type ridge-like sweet potato vine harvester in this example has a compact structure, a scientific and reasonable layout, and a simple and reliable transmission. It can complete multiple operations of side cutting, lifting, cutting, conveying, feeding, shredding, throwing, and collecting of sweet potato vines at one time in field operations.

[0066] Embodiment 2

[0067] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 8As shown, a trailer-mounted ridge-like sweet potato vine harvesting method, using the trailer-mounted ridge-like sweet potato vine harvester described in Example 1, includes the following steps:

[0068] The towed ridge-like sweet potato vine harvester is connected to the suspension arm of the tractor 1 through the suspension frame 2, and the reduction box 3 is connected to the main transmission box of the tractor through the tractor's own universal drive shaft. The tractor 1 drives the sweet potato vine harvester forward, the harvester starts, the vine picking shaft 51 rotates and cuts off the entangled vines at the ridge ditch through the disc cutter 56, so as to prevent the vine picking rod from being unable to pick the vines into the harvester housing due to the entanglement of the vines.

[0069] After the disc cutter 56 cuts off the entangled vines at the ridge, the vine lifting rod 55 can lift the cut vines to the shredding mechanism. During the process, the cutting knife 54 on the vine lifting rod 55 can also further cut off the entangled vine segments cut off by the disc cutter 56, so that the vines can enter the shredding mechanism 6 more smoothly.

[0070] After the vines enter the shredding mechanism 6, they are broken by the action of the moving blade 63 and the fixed blade 41. The broken vines enter the cavity of the auger mechanism. The spiral auger blades 72 transport the chopped vines horizontally to the pushing blades 73 at one end, and then they are transported to the throwing fan 8. As the fan blades 82 rotate, the vines are thrown through the throwing cylinder to the collection box 10 for collection. When the collection box 10 is full of vines, the turning cylinder 11 is activated to enable the collection box 10 to pour the full vines to the designated position.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A trailer-type ridge-like sweet potato vine harvester, characterized in that: The harvester comprises a housing, the front end of which is used to be suspended on the walking device; the harvester housing is provided with a seedling picking and cutting mechanism, a chopping mechanism, a auger mechanism and a throwing blower in sequence; the seedling picking and cutting mechanism is used to pick and break the seedlings at the same time, and the broken seedlings are crushed by the chopping mechanism and then enter the auger mechanism, and then are sent to the throwing blower; The seedling lifting and cutting mechanism is docked at the front side of the shredding mechanism, and includes a seedling lifting shaft arranged in the harvester housing. The height of the seedling lifting shaft is adapted to the height of the ridge back. Disc cutters for cutting off the seedling vines entangled in the ridge furrows are provided near the two ends of the seedling lifting shaft, and a seedling lifting rod is provided on the inner side of the disc cutter to lift the creeping seedling vines in the ridge furrows or between the ridges to the shredding mechanism for crushing.

2. A trailer-type ridge-like sweet potato vine harvester according to claim 1, characterized in that: A plurality of groups of cutting knives are symmetrically arranged on the seedling lifting shaft, and the cutting knives are located between two adjacent groups of seedling lifting rods.

3. A trailer-type ridge-like sweet potato vine harvester according to claim 2, characterized in that: The cutting knives are arranged in pairs on the seedling raising shaft through a cutting knife support frame; the circumferential positions of the multiple groups of cutting knives on the seedling raising shaft are different, and the planes where the blades of the cutting knives are located are parallel to the axis of the seedling raising shaft.

4. The trailer-type ridge-like sweet potato vine harvester according to claim 1, characterized in that: A fixed knife is provided inside the harvester shell at a location corresponding to the shredding mechanism, and the fixed knife is arranged along the width direction of the harvester shell; the shredding mechanism includes a shredding knife shaft, on which a plurality of groups of moving blades are arranged; a first pulley and a first sprocket are provided at one end of the shredding knife shaft, and a second pulley is provided at the other end.

5. The trailer-type ridge-like sweet potato vine harvester according to claim 4, characterized in that: The seedling lifting rods arranged at different positions on the seedling lifting shaft are arranged in an annular staggered manner; and the spacing between adjacent seedling lifting rods is adapted to the spacing between adjacent moving blades, so that the seedling lifting rods can cross and pass through the gaps between the moving blades.

6. The trailer-type ridge-like sweet potato vine harvester according to claim 2, characterized in that: The seedling lifting rods are provided with two groups and are arranged near the end of the seedling lifting shaft, and the cutting knife is located in the middle of the seedling lifting shaft; Alternatively, the seedling lifting rods are provided with three groups, two of which are arranged near the ends of the seedling lifting shafts, and the other group is arranged in the middle of the seedling lifting shafts, and the cutting knife is arranged between two adjacent groups of seedling lifting rods; the length of the seedling lifting shafts is adapted to the lengths spanned by the three adjacent groups of ridges.

7. The trailer-type ridge-like sweet potato vine harvester according to claim 4, characterized in that: The auger mechanism includes an auger shaft, the throwing fan includes a fan shaft, the shredder shaft cooperates with the output end of the reduction gearbox arranged at the front end of the harvester housing through a first pulley and a corresponding belt, and the input end of the reduction gearbox is connected to the transmission structure of the walking device; the shredder shaft also cooperates with the second sprocket extending from the end of the seedling picking shaft to the outside of the harvester housing through a first sprocket to drive the seedling picking shaft to rotate; the shredder shaft cooperates with one end of the auger shaft through a second pulley to drive the auger shaft to rotate, and the other end of the auger shaft drives the fan shaft to rotate through a pulley; the main bodies of the seedling picking shaft, shredder shaft, auger shaft and fan shaft are all arranged in the harvester housing, and are matched with the harvester housing through bearings near the corresponding positions of the ends.

8. The trailer-type ridge-like sweet potato vine harvester according to claim 7, characterized in that: The auger shaft is provided with a spiral auger blade, and a push blade is provided near one end, and the chopped vines are sent to the push blade through the spiral auger blade; the fan shaft is provided with a fan blade; the throwing fan is arranged on one side of the harvester housing in the width direction.

9. The trailer-type ridge-like sweet potato vine harvester according to claim 1, characterized in that: The end of the throwing fan sends the seedlings to the collection box through the throwing tube. The collection box is arranged on the top of the harvester shell and one side is rotatably connected to the support frame above the harvester shell. A turning cylinder is also provided on the support frame. The output end of the turning cylinder is connected to the collection box to turn the collection box over.

10. A trailer-type ridge-like sweet potato vine harvesting method, characterized in that: The method of using the trailer-type ridge-like sweet potato vine harvester as claimed in any one of claims 1 to 9 comprises the following steps: The walking equipment drives the sweet potato vine harvester forward, the vine picking shaft rotates and cuts off the entangled vines at the ridges through the disc cutter, the vine picking rod picks up the cut vines to the shredding mechanism for crushing, the crushed vines enter the auger mechanism and are transported to the throwing fan, and then the vines are thrown to the aggregate box for collection.

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