CN111406491B - Sweet potato harvester - Google Patents
Sweet potato harvester Download PDFInfo
- Publication number
- CN111406491B CN111406491B CN202010344522.9A CN202010344522A CN111406491B CN 111406491 B CN111406491 B CN 111406491B CN 202010344522 A CN202010344522 A CN 202010344522A CN 111406491 B CN111406491 B CN 111406491B
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- wheel
- frame
- mounting shaft
- shearing
- gear
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- 244000017020 Ipomoea batatas Species 0.000 title claims abstract description 64
- 235000002678 Ipomoea batatas Nutrition 0.000 title claims abstract description 64
- 239000002689 soil Substances 0.000 claims abstract description 49
- 238000010008 shearing Methods 0.000 claims abstract description 41
- 238000009960 carding Methods 0.000 claims abstract description 36
- 238000003306 harvesting Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 20
- 238000007790 scraping Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000007306 turnover Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract description 9
- 230000004888 barrier function Effects 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 244000309464 bull Species 0.000 description 13
- 241000345998 Calamus manan Species 0.000 description 10
- 235000012950 rattan cane Nutrition 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 206010017577 Gait disturbance Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D27/00—Machines with both topping and lifting mechanisms
- A01D27/02—Machines with both topping and lifting mechanisms with rigid tools
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D27/00—Machines with both topping and lifting mechanisms
- A01D27/04—Machines with both topping and lifting mechanisms with moving or rotating tools
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D33/00—Accessories for digging harvesters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D33/00—Accessories for digging harvesters
- A01D33/08—Special sorting and cleaning mechanisms
Abstract
The application provides a sweet potato harvester, and belongs to the technical field of agricultural machinery. The harvester comprises a frame, a driving wheel and a steering wheel, wherein the front end of the frame is provided with a ground surface harvesting unit, a soil turning harvesting unit is arranged between the driving wheel and the driving wheel, the driving wheel is connected with the frame through a driving shaft, the ground surface harvesting unit comprises a first mounting shaft, a suspension arm, a carding wheel and a shearing wheel, the carding wheel comprises shovel arms which are circumferentially and uniformly distributed outside the first mounting shaft, the front end of each shovel arm is provided with a plurality of comb teeth penetrating through the end parts of the shovel arms, the shearing wheel comprises a plurality of arc-shaped shearing blades which are in one-to-one correspondence with the shovel arms, the front ends of the shearing blades are provided with a stress barrier strip extending towards the axial direction far away from the first mounting shaft, the rear ends of the shearing blades are provided with shearing edges, and a reset spring which drives the front ends of the shearing blades to be aligned with the end parts of the comb teeth is connected between the connecting arms and the shovel arms. The application has the advantages of orderly harvesting vine leaves and the like.
Description
Technical Field
The application belongs to the technical field of agricultural machinery, and relates to a sweet potato harvester.
Background
In recent years, along with the continuous pursuit of people for diversified food, the vine leaves of sweet potatoes become delicious vegetables on dining tables of people, if a vine leaf part needs to be reserved, the traditional sweet potato harvester needs to harvest the vine leaves manually, then the root part of the stem is separated from soil in a soil turning mode, thereby being unfavorable for the value utilization of sweet potato planting.
Disclosure of Invention
The application aims at solving the problems existing in the prior art and provides a sweet potato harvester, and the technical problem to be solved by the application is how to harvest the vine leaves of sweet potatoes orderly.
The aim of the application can be achieved by the following technical scheme: the utility model provides a sweet potato harvester, its characterized in that, this harvester includes frame, drive wheel and return pulley, the frame front end is provided with earth's surface harvesting unit, be provided with the soil harvesting unit between drive wheel and the drive wheel, the drive wheel links to each other with the frame by a drive shaft, earth's surface harvesting unit includes first installation axle, davit, carding wheel and shearing wheel, carding wheel fixes on first installation axle, the one end and the first installation axle rotation of davit are connected, the other end and the frame of davit link to each other, the fixed first gear that is provided with in the drive shaft, rotate on the frame and be connected with the second gear with first gear engagement, link to each other through the belt between second gear and the first installation axle, the carding wheel includes a circumference evenly distributed shovel arm outside first installation axle, the front end of shovel arm has a plurality of broach that run through shovel arm tip, the shearing wheel includes a plurality of archs, with shovel arm one-to-one shear blade, link to each other through setting up at the linking arm of carding wheel two straight terminal surfaces, the shearing blade slides and connects between the shovel arm has a pair of shear blade front end and the front end of a cut end of a pair of blade, the shear blade has a front end of cut edge of the front end of the shear blade that is kept away from the axial line.
The frame, the driving wheel, the steering wheel and related accessories form a walking unit, the part is the conventional means, which is not repeated here, the walking unit is the rear wheel steering, and the technical scheme of the application only utilizes the rotation driving force of the driving wheel to provide the power sources of the earth surface harvesting unit and the soil turning harvesting unit.
The working principle is as follows: the device comprises a driving wheel, a steering wheel frame, a carding wheel, a shearing wheel, a frame, a combined motion state of translation and rotation, wherein the driving wheel and the steering wheel frame walk at a ridge upper part higher than the bottom of the driving wheel; when the resistance of the stress barrier strip between the ground surfaces disappears, namely after the sweet potato vine roots are sheared, under the action of the reset spring, the shearing wheel resets, and the gap between the adjacent shovel arms is newly opened, so that the vine roots in the empty slots between the adjacent shovel arms fall out.
The sweet potato vine roots are cut off at the connecting part, so that the method is very beneficial to soil removal and separation of the sweet potato, and the phenomenon that the soil removal of the sweet potato is affected due to messy and mutual stumbling of the sweet potato vine roots is avoided; moreover, when carding the root, the shovel arm just is located the connection position of root and soil, and the shearing is the root of rattan and has the position of a distance from soil when shearing, as long as control the ratio of planting row spacing, harvester walking's rotational speed and carding wheel rotational speed, will not receive the influence of harvester walking speed when harvesting, the ratio of harvester walking's rotational speed and carding wheel rotational speed can be controlled through the wheel diameter of belt pulley on the first installation epaxial belt pulley and the belt pulley on the second gear that links to each other with it.
In the sweet potato harvester, the suspension arm is rotationally connected with the frame, the frame is provided with the hydraulic cylinder, the cylinder body of the hydraulic cylinder is hinged on the frame, and the push rod of the hydraulic cylinder is hinged in the middle of the suspension arm.
The height of the carding wheel can be controlled through the extension and contraction of the push rod on the hydraulic cylinder, and the height of the carding wheel is used for adjusting the gap between the carding wheel and the ground surface.
In the sweet potato harvester, the number of teeth of the first gear is greater than the number of teeth of the second gear, and the rotation speed of the first mounting shaft is lower than that of the second gear.
Through setting up first gear and second gear, make the rotational speed that combs the wheel be less than the rotational speed of drive wheel, from the process that makes carding the wheel comb longer to the unordered problem of reply sweet potato rattan root.
In the sweet potato harvester, the soil turning harvesting unit comprises a soil turning plow and a soil removing and feeding mechanism, the tail end of the soil turning plow is contracted to form a circular feeding port, the soil removing and feeding mechanism comprises a plurality of rotating rods and a second mounting shaft, the second mounting shaft is rotationally connected to the frame, the two ends of the second mounting shaft are rotationally connected to the frame, the space between each rotating rod and the second mounting shaft is equal, a feeding groove with the radian smaller than 180 DEG is formed below the second mounting shaft, a threaded sleeve made of rubber material is sleeved on each rotating rod, a gap allowing loose soil to pass through exists between every two adjacent threaded sleeves, a bevel gear I is arranged on each second mounting shaft, a bevel gear II meshed with the bevel gear I is arranged on each driving shaft, a blanking section with the diameter smaller than the diameter of the threaded sleeve is arranged on each rotating rod near the tail end of each rotating rod, and a transmission assembly for driving each rotating rod is arranged between the tail end of each rotating rod and the second mounting shaft.
The existing soil turning and harvesting mode is generally a mode of vibration and continuous transmission, the dispersion capacity of soil blocks is poor, the overall size of the harvester is increased, and the sweet potatoes are easily damaged. In this scheme, will bury the soil block of sweet potato and lead to the trough in walking through the plough, walk the trough and constitute by a plurality of bull sticks, the bull stick is rotatory, extrudees and promote the soil block, the screw thread cover that the cover was established on the bull stick can increase the resistance to the soil block, and can peel off the fritter soil that adheres at sweet potato surface, forms the gap that spills the soil block between the adjacent bull stick, the rotation of bull stick can also avoid the jam in this gap.
In the sweet potato harvester, the transmission assembly comprises a driving gear fixed on the second installation shaft, each rotating rod is divided into a plurality of transmission rods and a plurality of driven rods, a large-diameter gear ring is fixedly arranged on each transmission rod, a small-diameter gear ring is fixedly arranged on each driven rod, the number of teeth of each large-diameter gear ring is greater than that of teeth of each small-diameter gear ring, each driven rod is respectively distributed on two sides of each transmission rod, the large-diameter gear ring on each transmission rod is simultaneously meshed with the small-diameter gear ring on each driven rod on two sides of each transmission rod, gaps are reserved between every two adjacent small-diameter gear rings, and each large-diameter gear ring is simultaneously meshed with each driving gear.
If each bull stick turns to the same, then the extrusion force to the soil piece is less, needs to walk the longer length of silo and just can be better to peel off and discharge the soil piece, in order to improve efficiency, groups each bull stick, only the transfer line just receives the drive, and the transfer line both sides set up a passive rotatory passive pole respectively, so, can make the rotation direction of arbitrary adjacent bull stick all opposite, increase the effect to soil, improve soil removal efficiency, also avoid soil and sweet potato to walk the opening direction of silo and remove simultaneously.
In the sweet potato harvester, the spiral directions of the thread ribs on the thread sleeves are the same, the rotating rods are parallel to each other, the rotating rods are parallel to the second installation shaft, and an inclination angle of 3-5 degrees is formed between the second installation shaft and the horizontal plane.
The trough with the inclined angle can avoid long-time stay of the sweet potatoes, and although the follow-up soil blocks can push the sweet potatoes to move, the sweet potatoes are still blocked by probability, and the sweet potatoes which are acted by the threaded sleeve for a long time are easily damaged.
In the sweet potato harvester, a scraping wheel is fixedly arranged on the second installation shaft, and a plurality of scraping rods are uniformly arranged on the scraping wheel in the circumferential direction; the two sides of the scraping wheel are respectively provided with a baffle plate fixed on the frame.
Scrape the pole, the cooperation is located the baffle of scraping the wheel both sides, can be with the rattan root and the sweet potato separation of being connected with sweet potato, sweet potato and connection are scraped by the rattan root of sweet potato and are scraped the pole, receive the spacing effect of baffle, sweet potato and rattan root separation, sweet potato falls down, and rattan root is rolled up outside the trough.
Drawings
Fig. 1 is a schematic structural view of the sweet potato harvester.
Fig. 2 is a schematic structural view of the soil-turning harvesting unit.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Fig. 4 is a sectional view in the direction B-B in fig. 2.
Fig. 5 is a sectional view in the direction C-C in fig. 2.
FIG. 6 is a schematic view of the state of the comb wheel and the shear wheel prior to shearing.
FIG. 7 is a schematic view of the state of the comb wheel and the shear wheel when sheared.
Fig. 8 is a schematic plan view of the plow.
In the figure, 1, a frame; 11. a driving wheel; 12. a steering wheel; 13. a drive shaft; 21. a first mounting shaft; 22. a suspension arm; 23. carding wheel; 231. a shovel arm; 232. comb teeth; 24. a shearing wheel; 241. a shear blade; 242. a stress barrier strip; 243. a cutting edge; 25. a first gear; 26. a second gear; 27. a return spring; 28. a hydraulic cylinder; 29. a connecting arm; 3. a soil-turning plow; 31. a rotating rod; 32. a second mounting shaft; 33. a thread sleeve; 34. bevel gears I; 35. bevel gears II; 36. a drive gear; 37. a large diameter gear ring; 38. a small diameter gear ring; 41. scraping wheel; 42. a scraping rod; 43. and a baffle.
Detailed Description
The following are specific embodiments of the present application and the technical solutions of the present application will be further described with reference to the accompanying drawings, but the present application is not limited to these embodiments.
As shown in fig. 1, 3, 6 and 7, the harvester comprises a frame 1, a driving wheel 11 and a steering wheel 12, a ground surface harvesting unit is arranged at the front end of the frame 1, a soil turning harvesting unit is arranged between the driving wheel 11 and the driving wheel, the driving wheel 11 is connected with the frame 1 by a driving shaft 13, the ground surface harvesting unit comprises a first mounting shaft 21, a suspension arm 22, a carding wheel 23 and a shearing wheel 24, the carding wheel 23 is fixed on the first mounting shaft 21, one end of the suspension arm 22 is rotationally connected with the first mounting shaft 21, the other end of the suspension arm 22 is connected with the frame 1, a first gear 25 is fixedly arranged on the driving shaft 13, a second gear 26 meshed with the first gear 25 is rotationally connected on the frame 1, the second gear 26 is connected with the first mounting shaft 21 by a belt, the carding wheel 23 comprises a shovel arm 231 which is circumferentially and evenly distributed outside the first mounting shaft 21, a plurality of comb teeth 232 penetrating through the end part of the shovel arm 231 are arranged at the front end of the shovel arm 231, the shearing wheel 24 comprises a plurality of arc-shaped shearing blades 241 which are in one-to-one correspondence with the shovel arm 231, the adjacent shearing blades 241 are connected through connecting arms 29 arranged on two straight end surfaces of the carding wheel 23, the shearing blades 241 are slidably connected to the outer surfaces of the shovel arm 231, an avoidance opening is formed between the adjacent shovel arms 231, a stress barrier strip 242 extending towards the axial direction far away from the first mounting shaft 21 is arranged at the front end of the shearing blades 241, a shearing edge 243 is arranged at the rear end of the shearing blades 241, and a reset spring 27 which drives the front ends of the shearing blades 241 to be aligned with the end parts of the comb teeth 232 is connected between the connecting arms 29 and the shovel arm 231.
The frame 1, the driving wheel 11, the steering wheel 12 and related accessories form a walking unit, the part is the conventional means, which is not repeated here, the walking unit is rear wheel steering, and the technical scheme of the application only utilizes the rotation driving force of the driving wheel 11 to provide power sources of the earth surface harvesting unit and the soil turning harvesting unit.
The working principle is as follows: the driving wheel 11 and the steering wheel 12 are erected at the interval part between the ridges and walk, the carding wheel 23 and the shearing wheel 24 are positioned at the upper part higher than the bottom of the driving wheel 11, the driving wheel 11 rotates, the frame 1 moves, the carding wheel 23 is in a translational and rotational composite motion state, a gap between the front end and the tail end of the shovel arm 231 is provided, on one hand, a space for enabling the comb teeth 232 at the front end of the shovel arm 231 to be contacted with sweet potato vine roots above the ground surface is provided, on the other hand, a hollow groove is formed between the heart shovel arm 231 and is used for allowing part of sweet potato vine roots to be temporarily stored at the position, the carding wheel 23 moves forward and moves horizontally, the sweet potato vine roots are combed between the comb teeth 232, the force-bearing barrier strip 242 receives ground resistance, the whole shearing wheel 24 rotates reversely relative to the carding wheel 23, and the shearing blade 243 at the rear end of the shearing wheel 24 acts on the vine roots clamped in the gap between the comb teeth 232 to cut off the vine roots, and the shearing blade action can be convenient for the vine roots to be pulled before the vine roots are sheared during translation, and the vine roots can be completely prevented from being pulled out of the ground surface after the carding wheel 23 rotates to be lifted up to the ground surface and the root roots 23 can be completely prevented from being rolled and broken; when the resistance between the ground surfaces of the stress barrier strips 242 disappears, namely after the sweet potato vine roots are sheared, under the action of the reset spring 27, the shearing wheel 24 resets, and the gap between the adjacent shovel arms 231 is newly opened, so that the vine roots in the empty slots between the adjacent shovel arms 231 fall out.
The sweet potato vine roots are cut off at the connecting part, so that the method is very beneficial to soil removal and separation of the sweet potato, and the phenomenon that the soil removal of the sweet potato is affected due to messy and mutual stumbling of the sweet potato vine roots is avoided; moreover, when carding the root, the shovel arm 231 is just positioned at the joint position of the vine root and the soil, and when shearing, the shearing is at a position with a distance from the soil, as long as the planting row spacing, the ratio of the walking speed of the harvester to the rotating speed of the carding wheel 23 are controlled, the ratio of the walking speed of the harvester to the rotating speed of the carding wheel 23 can be controlled through the belt pulley on the first mounting shaft 21 and the belt pulley on the second gear 26 connected with the belt pulley.
The suspension arm 22 is rotatably connected with the frame 1, the frame 1 is provided with a hydraulic cylinder 28, the cylinder body of the hydraulic cylinder 28 is hinged on the frame 1, and the push rod of the hydraulic cylinder 28 is hinged in the middle of the suspension arm 22. The height of the carding wheel 23 can be controlled by the extension and retraction of the push rod on the hydraulic cylinder 28, and the clearance between the carding wheel 23 and the ground surface is adjusted.
The number of teeth of the first gear 25 is greater than the number of teeth of the second gear 26, and the rotational speed of the first mounting shaft 21 is lower than the rotational speed of the second gear 26. By arranging the first gear 25 and the second gear 26, the rotating speed of the carding wheel 23 is lower than that of the driving wheel 11, and the carding process of the carding wheel 23 is longer, so that the problem of disorder of sweet potato vine roots is solved.
As shown in fig. 1, fig. 2, fig. 5 and fig. 8, the soil-turning harvesting unit comprises a soil-turning plow 3 and a soil-removing feeding mechanism, the tail end of the soil-turning plow 3 is contracted to form a circular feeding opening, the soil-removing feeding mechanism comprises a plurality of rotary rods 31 and a second mounting shaft 32, the second mounting shaft 32 is rotatably connected to the frame, two ends of the second mounting shaft 32 are rotatably connected to the frame 1, the space between each rotary rod 31 and the second mounting shaft 32 is equal, each rotary rod 31 forms a feeding groove with radian smaller than 180 degrees below the second mounting shaft 32, a rubber thread sleeve 33 is sleeved on each rotary rod 31, a gap allowing scattered soil to pass through exists between adjacent thread sleeves 33, a bevel gear I34 is arranged on the second mounting shaft 32, a bevel gear II 35 meshed with the bevel gear I is arranged on the driving shaft 13, a blanking section with diameter smaller than the diameter of the thread sleeve 33 is arranged on the rotary rod 31 near the tail end of the rotary rod 31, and a transmission assembly for driving each rotary rod 31 is arranged between the tail end of the rotary rod 31 and the second mounting shaft 32.
The existing soil turning and harvesting mode is generally a mode of vibration and continuous transmission, the dispersion capacity of soil blocks is poor, the overall size of the harvester is increased, and the sweet potatoes are easily damaged. In this scheme, will bury the soil block of sweet potato and lead to the trough in walking through the plough 3, walk the trough and constitute by a plurality of bull sticks 31, bull stick 31 is rotatory, extrudees and promote the soil block, and the screw thread cover 33 that the cover was established on the bull stick 31 can increase the resistance to the soil block, and can peel off the fritter soil that adheres to the sweet potato surface, forms the gap that spills the soil block between the adjacent bull stick 31, and the rotation of bull stick 31 can also avoid the jam in this gap.
The transmission assembly comprises a driving gear 36 fixed on the second installation shaft 32, each rotating rod 31 is divided into a plurality of transmission rods and a plurality of driven rods, a large-diameter gear ring 37 is fixedly arranged on each transmission rod, a small-diameter gear ring 38 is fixedly arranged on each driven rod, the number of teeth of the large-diameter gear ring 37 is greater than that of teeth of the small-diameter gear ring 38, two driven rods are respectively distributed on two sides of each transmission rod, the large-diameter gear ring 37 on each transmission rod is meshed with the small-diameter gear rings 38 on the driven rods on two sides of each transmission rod at the same time, gaps are reserved between the adjacent small-diameter gear rings 38, and the driving gear 36 is meshed with each large-diameter gear ring 37 at the same time. If each rotating rod 31 turns to the same, the extrusion force to the soil block is smaller, the soil block can be stripped and discharged better only by the longer length of the feeding groove, in order to improve the efficiency, each rotating rod 31 is grouped, only the transmission rod is driven, and the two sides of the transmission rod are respectively provided with a passive rotating rod, so that the rotation directions of any adjacent rotating rods 31 are opposite, the action effect on the soil is improved, the soil removing efficiency is improved, and meanwhile, the soil and the sweet potatoes are prevented from moving towards the opening direction of the feeding groove.
The screw direction of the screw thread convex ribs on each screw thread sleeve 33 is the same, each rotating rod 31 is parallel to each other, the rotating rod 31 is parallel to the second installation shaft 32, and an inclination angle of 3-5 degrees is formed between the second installation shaft 32 and the horizontal plane. The trough arranged at the inclined angle can prevent the sweet potatoes from staying for a long time, and although the follow-up soil blocks can push the sweet potatoes to move, the sweet potatoes are still blocked by probability, and the sweet potatoes acted by the threaded sleeve 33 are easily damaged for a long time.
A scraping wheel 41 is fixedly arranged on the second mounting shaft 32, and a plurality of scraping rods 42 are uniformly arranged on the scraping wheel 41 in the circumferential direction; the two sides of the scraping wheel 41 are respectively provided with a baffle 43 fixed on the frame 1. Scrape pole 42, cooperation are located the baffle 43 of scraping wheel 41 both sides, can be with the rattan root and the sweet potato separation of being connected with sweet potato, and sweet potato and connection are scraped by the rattan root of sweet potato by scraping pole 42, receive baffle 43's spacing effect, and sweet potato and rattan root separation, sweet potato falls down, and rattan root is rolled up outside the trough.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the application or exceeding the scope of the application as defined in the accompanying claims.
Claims (4)
1. The utility model provides a sweet potato harvester, its characterized in that, this harvester includes frame (1), drive wheel (11) and return pulley (12), frame (1) front end is provided with earth's surface harvesting unit, be provided with between drive wheel (11) and the drive wheel and turn over native harvesting unit, drive wheel (11) link to each other with frame (1) by a drive shaft (13), earth's surface harvesting unit includes first installation axle (21), davit (22), carding wheel (23) and shearing wheel (24), carding wheel (23) are fixed on first installation axle (21), the one end and the first installation axle (21) rotation of davit (22) are connected, the other end and the frame (1) of davit (22) link to each other, fixedly on drive shaft (13) be provided with first gear (25), rotationally be connected with on frame (1) with second gear (26) of first gear (25) meshing, link to each other through the belt between second gear (26) and the first installation axle (21), carding wheel (23) include circumference evenly distributed in first installation axle (21) and have a plurality of shovel arms (231) and a plurality of arc-shaped ends (231), a plurality of shovel arms (231) are cut through, a plurality of shovel arms (231) are cut out of arc-shaped and are held The shearing blades (241) are in one-to-one correspondence with the shovel arms (231), the adjacent shearing blades (241) are connected through connecting arms (29) arranged on two straight end faces of the carding wheel (23), the shearing blades (241) are connected to the outer surfaces of the shovel arms (231) in a sliding mode, an avoidance opening is formed between the adjacent shovel arms (231), the front ends of the shearing blades (241) are provided with stress blocking strips (242) which extend towards the axis direction far away from the first mounting shaft (21), the rear ends of the shearing blades (241) are provided with shearing edges (243), and a reset spring (27) for driving the front ends of the shearing blades (241) to be aligned with the end portions of the comb teeth (232) is connected between the connecting arms (29) and the shovel arms (231);
the soil-turning harvesting unit comprises a soil-turning plow (3) and a soil-removing feeding mechanism, wherein the tail end of the soil-turning plow (3) is contracted to form a circular feeding hole, the soil-removing feeding mechanism comprises a plurality of rotating rods (31) and a second mounting shaft (32), the second mounting shaft (32) is rotationally connected to a frame, the two ends of the second mounting shaft (32) are rotationally connected to the frame (1), the distance between each rotating rod (31) and the second mounting shaft (32) is equal, each rotating rod (31) forms a feeding groove with the radian smaller than 180 DEG below the second mounting shaft (32), a rubber thread sleeve (33) is sleeved on each rotating rod (31), a gap allowing scattered soil to pass through exists between every two adjacent thread sleeves (33), a first bevel gear (34) is arranged on the second mounting shaft (32), a second bevel gear (35) meshed with the first bevel gear is arranged on the driving shaft (13), a section of a lower section of diameter sleeve (33) is arranged on the rotating rod (31) close to the tail end of the rotating rod (31), and a transmission assembly is arranged between the second rotating rod (31) and the tail end of the rotating rod (31);
the transmission assembly comprises a driving gear (36) fixed on a second installation shaft (32), each rotating rod (31) is divided into a plurality of transmission rods and a plurality of driven rods, a large-diameter gear ring (37) is fixedly arranged on each transmission rod, a small-diameter gear ring (38) is fixedly arranged on each driven rod, the number of teeth of each large-diameter gear ring (37) is greater than that of each small-diameter gear ring (38), each driven rod is respectively distributed on two sides of each transmission rod, the large-diameter gear ring (37) on each transmission rod is simultaneously meshed with the small-diameter gear ring (38) on each driven rod positioned on two sides of each driven rod, a gap is reserved between every two adjacent small-diameter gear rings (38), and each driving gear (36) is simultaneously meshed with each large-diameter gear ring (37);
a scraping wheel (41) is fixedly arranged on the second installation shaft (32), and a plurality of scraping rods (42) are uniformly arranged on the scraping wheel (41) in the circumferential direction; both sides of the scraping wheel (41) are respectively provided with a baffle plate (43) fixed on the frame (1).
2. Sweet potato harvester according to claim 1, characterized in that the boom (22) is rotatably connected with the frame (1), a hydraulic cylinder (28) is arranged on the frame (1), the cylinder body of the hydraulic cylinder (28) is hinged on the frame (1), and the push rod of the hydraulic cylinder (28) is hinged in the middle of the boom (22).
3. Sweet potato harvester according to claim 1 or 2, characterized in that the number of teeth of the first gear (25) is greater than the number of teeth of the second gear (26), the rotational speed of the first mounting shaft (21) being lower than the rotational speed of the second gear (26).
4. A sweet potato harvester according to claim 3, characterized in that the screw direction of the screw ribs on each screw sleeve (33) is the same, each rotating rod (31) is parallel to each other, the rotating rod (31) is parallel to a second mounting shaft (32), and an inclination angle of 3-5 ° is formed between the second mounting shaft (32) and the horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344522.9A CN111406491B (en) | 2020-04-27 | 2020-04-27 | Sweet potato harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344522.9A CN111406491B (en) | 2020-04-27 | 2020-04-27 | Sweet potato harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111406491A CN111406491A (en) | 2020-07-14 |
| CN111406491B true CN111406491B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010344522.9A Active CN111406491B (en) | 2020-04-27 | 2020-04-27 | Sweet potato harvester |
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| CN (1) | CN111406491B (en) |
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