CN109429671B - One-ridge two-row carrot combine harvester - Google Patents
One-ridge two-row carrot combine harvester Download PDFInfo
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- CN109429671B CN109429671B CN201811591761.3A CN201811591761A CN109429671B CN 109429671 B CN109429671 B CN 109429671B CN 201811591761 A CN201811591761 A CN 201811591761A CN 109429671 B CN109429671 B CN 109429671B
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- 244000000626 Daucus carota Species 0.000 title claims abstract description 42
- 235000002767 Daucus carota Nutrition 0.000 title claims abstract description 40
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims description 39
- 239000000178 monomer Substances 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000010354 integration Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003306 harvesting Methods 0.000 abstract description 10
- 239000002689 soil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 241001124569 Lycaenidae Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 241000748095 Hymenopappus filifolius Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D33/00—Accessories for digging harvesters
- A01D33/10—Crop collecting devices, with or without weighing apparatus
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Transplanting Machines (AREA)
Abstract
The invention relates to agricultural machinery, in particular to a one-ridge two-row carrot combine harvester. The seedling cutting machine comprises a frame, a double-row seedling supporting feeding device, an excavating device, a double-wheel depth limiting device, a clamping and pulling conveying device and a root cutting device, wherein the double-row seedling supporting feeding device is fixed at the top end of the clamping and pulling conveying device, the excavating device is fixed at the bottom of the top end of the clamping and pulling conveying device, the excavating device is located below the double-row seedling supporting feeding device, the double-wheel depth limiting device is fixed at the front end of the clamping and pulling conveying device, the double-wheel depth limiting device is located behind the double-row seedling supporting feeding device, the root cutting device is fixed at the bottom of the rear end of the clamping and pulling conveying device, the clamping and pulling conveying device is arranged on one side of the frame, and the frame is fixed on a supporting surface of a crawler chassis. The harvester realizes harvesting of carrots planted in one ridge and two rows in high density, and has the advantages of compact structure, small volume, flexible and convenient use and high operation efficiency.
Description
Technical Field
The invention relates to agricultural machinery, in particular to a one-ridge two-row carrot combine harvester.
Background
The carrot planting area and yield in China are all the first in the world, but the mechanized harvesting level is very low, and especially a combine harvester, the domestic market has no mature product application. In face of the urgent demands of large-scale and industrialization of the current carrot production and the current shortage of domestic agricultural labor, the development of the efficient carrot combine harvester suitable for the national conditions of China is significant.
Currently, the mechanized operation of carrots in developed countries from seed to seed has been completed in a relatively complete system, and combine harvesters can be largely classified into large-scale side traction type represented by European and American countries and small-scale self-propelled type represented by Japan. The large-scale side traction type power is high, the operation efficiency is high, and the large-scale side traction type power is suitable for large-area planting modes; the small and medium-sized self-propelled carrot combine harvester has small volume and flexible walking, and is suitable for small and medium-sized area operation. However, advanced foreign models are not suitable for the national conditions of China due to the differences of planting modes and agricultural requirements, high price of foreign models and the like. At present, the main application in China is a carrot digger which digs out carrots only and cuts seedlings manually, removes soil and collects the carrots. A small amount of carrot combine harvesters under study have imperfect structure and function, complex key component structure and insufficient maturity of related technologies, and are especially suitable for a one-ridge two-row and narrow row spacing (less than or equal to 20 cm) high-density planting mode commonly adopted by domestic carrots, and have poor adaptability and are not applied substantially at present.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a one-ridge two-row carrot combine harvester which is used for harvesting two-ridge two-row high-density planted carrots, and has the advantages of compact structure, small volume, flexible and convenient use and high operation efficiency.
The technical scheme of the invention is as follows: a one-ridge two-row carrot combine harvester comprises a frame, and further comprises a double-row seedling supporting feeding device, an excavating device, a double-wheel depth limiting device, a clamping and pulling conveying device and a root leaf cutting device, wherein the double-row seedling supporting feeding device is fixed at the top end of the clamping and pulling conveying device, the excavating device is fixed at the bottom of the top end of the clamping and pulling conveying device, the excavating device is positioned below the double-row seedling supporting feeding device, the double-wheel depth limiting device is fixed at the front end of the clamping and pulling conveying device, the double-wheel depth limiting device is positioned behind the double-row seedling supporting feeding device, the root leaf cutting device is fixed at the bottom of the middle rear end of the clamping and pulling conveying device, the clamping and pulling conveying device is arranged at one side of the frame, and the frame is fixed on a supporting surface of a crawler chassis;
The double-wheel depth limiting device comprises a depth limiting wheel, a wheel bracket, a spiral height adjusting rod, a connecting beam, a depth limiting supporting arm and a depth limiting fixed seat, wherein the depth limiting wheel is connected with the spiral height adjusting rod through the wheel bracket and the supporting rod respectively;
The clamping pulling conveying device comprises four sets of clamping pulling conveying monomers and a longitudinal beam supporting frame, the four sets of clamping pulling conveying monomers are all arranged on the longitudinal beam supporting frame, the clamping pulling conveying device is connected with the excavating device and the double-wheel depth limiting device through the longitudinal beam supporting frame, the clamping pulling conveying monomers comprise a driving pulley, a driven pulley, a special-shaped clamping conveying belt, a driving pulley connecting piece, a driven pulley mounting plate and a longitudinal beam, the longitudinal beam is tubular, the driven pulley is arranged at the top end of the clamping pulling conveying monomers, the driven pulley is arranged on the driven pulley mounting plate, the driving pulley is arranged at the tail end of the driven pulley, the driving pulley is arranged on an output shaft of a hydraulic motor of the clamping conveying belt, the driven pulley mounting plate is fixedly connected with the front end of the longitudinal beam, the driving pulley connecting piece comprises a front rectangular pipe, a hinge joint and a rear end plate, the hinge joint is arranged between the front rectangular pipe and the rear end plate, the hinge joint is fixedly connected with the front rectangular pipe and the rear end plate through welding, the front rectangular pipe is inserted into an inner cavity of the rear end of the longitudinal beam, the hydraulic motor of the clamping conveying belt is fixedly arranged on the rear end plate, and the special-shaped clamping conveying belt is sleeved between the driving pulley and the driven pulley;
The tensioning adjusting rod of the clamping conveying belt comprises two hinge ends, a threaded sleeve and a screw rod, wherein the threaded sleeve and the screw rod are positioned between the two hinge ends, the two hinge ends are respectively hinged with a driving wheel connecting piece and a longitudinal beam, the threaded sleeve is provided with internal threads, the front end and the rear end of the threaded sleeve are respectively provided with the screw rod and are in threaded connection with the screw rod, one of the two screw rods is in left-handed rotation, the other screw rod is in right-handed rotation, and therefore the fact that when the threaded sleeve rotates, the two screw rods are opposite in movement direction is achieved, one end of the screw rod is connected with the threaded sleeve, and the other end of the screw rod is fixedly connected with the hinged end.
In the invention, two adjacent clamping and pulling conveying single units are combined, each clamping and pulling conveying single unit is provided with a plurality of elastic pressing devices, each elastic pressing device comprises a spring and a pressing wheel I, one end of the spring is connected with a longitudinal beam, the other end of the spring is connected with the pressing wheel I, the pressing wheel I is contacted with the inner side of the special-shaped clamping conveying belt, the pressing wheels I apply outward pressing force to the special-shaped clamping conveying belt through the elastic force in the spring, the elastic pressing devices of the clamping and pulling conveying single units are arranged in a staggered manner, one ends of the clamping and pulling conveying single units positioned at the two outer sides are provided with tensioning wheels, the tensioning wheels are contacted with the inner surface of the special-shaped clamping conveying belt, the other ends of the clamping and pulling conveying single units are provided with pressing wheels II, the pressing wheels II are contacted with the outer surface of the special-shaped clamping conveying belt, and the special-shaped clamping conveying belt is applied with inward pressing force.
The double-row seedling-supporting feeding device consists of three seedling-supporting feeding monomers, each seedling-supporting feeding monomer comprises a seedling-supporting divider, a seedling-supporting divider connecting plate, a seedling-supporting feeding connecting piece and a seedling-supporting feeding base, the seedling-supporting divider is bent, the front end of the seedling-supporting divider is horizontal to the ground, a certain included angle is formed between the rear end of the seedling-supporting divider and the ground, the seedling-supporting divider connecting plate is welded on the bottom surface of the rear end of the seedling-supporting divider, the front end of the seedling-supporting feeding connecting piece is hinged with the seedling-supporting divider connecting plate, the rear end of the seedling-supporting feeding connecting piece is hinged with the seedling-supporting feeding base, the seedling-supporting feeding base is fixedly connected with the clamping and pulling conveying device, arc-shaped holes I are formed in the seedling-supporting divider connecting plate, corresponding screws are arranged on the seedling-supporting feeding connecting piece, the screws are arranged in the arc-shaped holes I and slide in the arc-shaped holes, corresponding screws are arranged on the seedling-supporting feeding base, the screws are arranged in the arc-shaped holes II and can slide in the arc-shaped holes, the guide rods are symmetrically connected with the front ends of the seedling-supporting dividing connecting piece and the guide rods, and the guide rods are symmetrically arranged at the two sides of the guide rods, and the guide rods are separated from the front ends and the guide rods are arranged at the two sides of the guide rods and the guide rods.
The excavating device comprises an excavating shovel, a shovel handle and a shovel handle connecting plate, wherein the excavating shovel is a two-wing triangular shovel, the excavating shovel is fixed at the front end of the shovel handle through two screws, the front end of the shovel handle is in a blade shape, the rear end of the shovel handle is connected with the shovel handle connecting plate through a main pin shaft and an auxiliary pin shaft, three holes connected with the shovel handle are formed in a shovel handle connecting piece, and the shovel handle connecting plate is fixed at the middle bottom side of the front end of the clamping and pulling conveying device.
The root leaf cutting device comprises two sets of root She Qiege monomers, each set of root leaf cutting monomer comprises a pair of outer supporting plates, a pair of inner supporting plates positioned between the front ends of the two outer supporting plates, and a single-saw-tooth disc cutter positioned between the rear ends of the two outer supporting plates, the front ends of the outer supporting plates are provided with round holes, the rear ends of the outer supporting plates are provided with long arc holes, bolts fixedly connecting a longitudinal beam supporting frame and the outer supporting plates are respectively arranged in the round holes and the long arc holes, the bottoms of the front ends of the two inner supporting plates are respectively welded with a guide feeding rod, and an inner supporting ring and an outer supporting ring are connected through a front clamping elastic device and a rear clamping elastic device; the front clamping elastic device and the rear clamping elastic device are both composed of a spring and a screw rod, and the screw rod of the front clamping elastic device penetrates through the through hole I in the outer supporting plate and then penetrates through the spring to be connected with the threaded hole I of the inner supporting plate; the screw rod of the rear clamping elastic device penetrates through the through hole II on the outer support plate and then penetrates through the spring to be connected with the threaded hole II of the inner support plate, and the spring is pressed between the inner support plate and the outer support plate;
The front end and the rear end of the outer supporting plate are respectively provided with a limiting screw, the front limiting screw and the rear limiting screw respectively penetrate through a threaded hole III and a threaded hole IV in the supporting plate, the single-sawtooth disc cutter is fixedly connected with an output shaft of the cutting hydraulic motor, the cutting hydraulic motor is fixedly arranged on two long holes of the outer supporting plate through a bolt, and the rear ends of the two outer supporting plates are connected through screws.
The crawler belt walking chassis conveying and collecting device is positioned on the outer side of the rear end of the clamping and pulling conveying device, and the conveying and collecting device, the hydraulic integrated device, the control device and the engine device are fixed on the frame.
The conveying and collecting device comprises two outer baffles, a baffle conveying belt, a driving roller and a driven roller, wherein a collecting and conveying hydraulic motor is fixed on one outer baffle, an output shaft of the collecting and conveying hydraulic motor is connected with the driving roller through a transmission chain, and the driving roller and the driven roller are respectively arranged between the two outer baffles through a bearing seat and a bearing. The baffle conveyer belt is the rubber conveyer belt that the interval set up the baffle for the interval, and the baffle conveyer belt twines between drive roller and driven voller, and outer baffle inboard middle part is equipped with compression roller and last pinch roller down, and the middle section of baffle conveyer belt produces 45 rising turning under the restraint of compression roller and last pinch roller down, and the rear end of outer baffle is equipped with the collection bag support.
The beneficial effects of the invention are as follows:
(1) The multifunctional combined operation such as digging, clamping and pulling, clamping and conveying, stubble-cutting, seedling throwing, root and fruit conveying, collecting and the like of carrots can be continuously realized, and the operation efficiency is high;
(2) The front end of the seedling-supporting divider of the double-row seedling-supporting feeding device is provided with a rod piece which is bent upwards, the bent part of the front end is horizontally attached to the ground during operation, the rear section of the rod is inclined to the ground, in the operation process, the structure can be used for straightening and holding lodged and camber carrot seedlings She Fuqi, so that seedling leaves are smoothly fed and held, two guide rods are fixed on two sides of a connecting plate of the seedling-supporting divider and are divided into wing-shaped parts, fluffy carrot seedlings She Julong can be fed, the seedling-supporting feeding connecting piece is used for connecting the seedling-supporting divider with a seedling-supporting feeding base, and the installation angles of the three are adjusted through arc holes so as to adapt to different field conditions and seedling requirements;
(3) The upper side of the shovel handle of the excavating device is in a blade shape, so that the soil penetration resistance can be reduced, the shovel handle is connected with a shovel handle connecting plate through a main pin shaft and an auxiliary pin shaft, wherein the auxiliary pin shaft can be connected through three different connecting holes to adjust different digging shovel soil penetration angles so as to adapt to soil requirements of different properties and humidity;
(4) Because the carrot digs the depth greatly, dig resistance and limit the deep resistance to be great, especially for two-row harvest, because of the width is great, the single-wheel limit the deep is unstable, for two-row planting modes of a ridge, adopt the double-wheel to stride the ridge to limit the deep, two depth-limiting wheels walk in the furrow of both sides of the harvest ridge separately, the stress of the harvest frame is balanced, limit the deep steadily, and two depth-limiting wheels are independent and highly adjustable in order to adapt to the different altitude conditions of two sides of ridge;
(5) The clamping conveyer belt can conveniently adjust the tightness of the clamping conveyer belt by tightening the adjusting rod, and the phenomenon of loosening and removing the belt is prevented; the diameter of the driving wheels is less than or equal to 8cm in order to meet the requirement of the row spacing and considering the thickness of the belt and the gap between the two rows of longitudinal beams, so that the driving wheels are easy to slip due to the fact that the diameter of the driving wheels is too small.
(6) The root and leaf cutting device adopts a single-sawtooth disc cutter rotating at high speed, so that the cutting resistance is reduced and the cutting efficiency is improved due to the sawtooth effect; the flexible clamping of the seedling leaves can be realized by adopting the clamping elastic device, so that the phenomena of sliding friction and extrusion of the seedling leaves caused by seedling breakage are reduced; the splayed arrangement of the guide feeding rod can feed the conveyed carrot seedling She Julong, so that the feeding leakage is prevented;
(7) The machine adopts a crawler belt self-propelled type, the harvesting part is offset, the harvesting path is L-shaped, the whole machine structure is compact, and the movement is flexible;
(8) The clamping and conveying component, the seedling She Qiege component, the conveying and collecting component, the harvesting frame lifting and lowering working components are all driven by full hydraulic pressure, the components are independently controlled by the control device, and the lifting and lowering working components can rotate positively and negatively.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 (a) is a front view of a double row seedling-holding feeding device;
FIG. 2 (b) is a top view of the double row seedling-holding feeding device;
FIG. 3 is a schematic view of the construction of the excavating device;
FIG. 4 is a schematic view of a dual wheel depth limiting device;
FIG. 5 is a schematic view of the structure of the gripping and pulling delivery device;
FIG. 6 is a schematic structural view of a clamp belt tensioning adjustment device;
FIG. 7 is a schematic view of the construction of the drive wheel attachment;
FIG. 8 is a schematic view of the structure of the root blade cutting device;
FIG. 9 is a schematic structural view of a root She Qiege monomer;
FIG. 10 is a schematic view of the structure of the outer support plate apparatus;
FIG. 11 is a schematic view of the structure of the inner support plate;
FIG. 12 is a schematic view of a transport and collection device
Wherein: 1, a double-row seedling supporting feeding device; 11 seedling-supporting crop dividers; 12 seedling-supporting divider connecting plates; 121 arc hole I; 13 seedling supporting and feeding connecting pieces; 131 arc hole II; 132 fixing holes; 14, seedling supporting and feeding the seedlings into a base; 15 guide rod I;16 guide rods II;2, excavating device; 21 a digging shovel; 22 screws; 23 shovel handles; 24 shovel handle connecting plates; 25 connecting holes; 26 main pin shafts; 27 pairs of pin shafts; 3 a double-wheel depth limiting device; 31 depth wheels; a 32-wheel bracket; 33 spiral height adjusting rods; 34 adjusting the knob; a 35K-shaped connecting plate; a 36V-shaped connection plate; 37 connecting the cross beam; 38 a depth limiting support arm; 39 depth limiting fixed seats; 4, a crawler walking chassis; 5 clamping, pulling and conveying devices; 51 driven pulleys; 52 a driven wheel mounting plate; 53 elastic compression means; 531 springs; 532 pinch roller I; 54 stringers; 55 abnormal clamping conveyer belt; 56 tensioning wheels; 57 clamping the conveyor belt to tighten the adjusting rod; 571 screw rod; 572 threaded sleeve; 573 a fastening nut; 574 hinge ends; 58 pinch roller II; 59 a drive wheel connecting piece; 591 a front rectangular tube; 592 hinge joints; 593 a rear end plate; 510 clamping a conveyor belt hydraulic motor; 511 seedling throwing guide rod; 512 a driving pulley; 513 stringer supports; 6, lifting a hydraulic cylinder; a frame 7; 8, a main shaft; 9 leaf cutting devices; 91 guide the feeding rod; 92 front clamping elastic means; 93 front limit screw; 94 an inner support plate; 941 threaded holes I;942 threaded hole II;95 rear limit screw; 96 rear clamping elastic means; 97 outer support plates; 971 round hole; 972 via I;973 threaded hole III;974 threaded hole IV;975 through hole II;976 connecting screw; 977 long arc holes; 978 long holes; 98 single serrated disc cutter; 99 cutting hydraulic motor; 10, conveying a collecting device; an outer baffle 101; 102, a partition board conveying belt; 103, pressing the wheel; 104 driving rollers; 105 collecting bag brackets; 106 a transmission chain; 107 collecting and conveying hydraulic motors; 108 pressing down the roller; 109 driven rolls; 20 a hydraulic pressure integration device; 30, controlling the device; 40 engine assembly.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1, the one-ridge two-row carrot combine harvester comprises a double-row seedling supporting and feeding device 1, an excavating device 2, a double-wheel depth limiting device 3, a clamping, pulling and conveying device 5, a root and leaf cutting device 9, a conveying and collecting device 10, a hydraulic integrated device 20, a control device 30, an engine device 40, a crawler chassis 4 and a frame 7. The double-row seedling supporting and feeding device 1 is fixed at the top end of the clamping and pulling conveying device 5 through bolts, the excavating device 2 is fixed at the bottom of the top end of the clamping and pulling conveying device 5 through two pin shafts, and the excavating device 2 is positioned below the double-row seedling supporting and feeding device 1. The double-wheel depth limiting device 3 is fixed at the front end of the clamping and pulling conveying device 5 through bolts, and the double-wheel depth limiting device 3 is positioned behind the double-row seedling supporting feeding device 1. The invention comprises two sets of root cutting devices 9, wherein the root cutting devices 9 are fixed at the bottom of the rear section of the clamping and pulling conveying device 5 through bolts. The clamping and pulling conveying device 5 is arranged on one side of the frame 7 through a main shaft 8 and a lifting hydraulic cylinder 6, the conveying and collecting device 10 is located on the outer side of the rear end of the clamping and pulling conveying device 5, the conveying and collecting device 10 is fixed on the frame 7 through bolts, and the hydraulic integration device 20, the control device 30 and the engine device 40 are fixed on the frame 7 through bolts. The frame is fixed on the supporting surface of the crawler chassis 4, and the crawler is used for driving the whole harvester to walk.
As shown in fig. 2 (a) and 2 (b), the double-row seedling-supporting feeding device 1 is composed of three sets of seedling-supporting feeding monomers, and each set of seedling-supporting feeding monomers comprises a seedling-supporting divider 11, a seedling-supporting divider connecting plate 12, a seedling-supporting feeding connecting piece 13 and a seedling-supporting feeding base 14. The seedling-supporting divider 11 is bent, the front end of the seedling-supporting divider is horizontal to the ground, and a certain included angle is formed between the rear end of the seedling-supporting divider and the ground. The bottom surface of the rear end of the seedling-supporting divider 11 is welded with a seedling-supporting divider connecting plate 12, the front end of a seedling feeding connecting piece 13 is hinged with the seedling-supporting divider connecting plate 12, the rear end of the seedling feeding connecting piece 13 is hinged with a seedling-supporting feeding base 14, and the seedling-supporting feeding base 14 is fixedly connected with the clamping, pulling and conveying device 5. Be equipped with arc hole I121 on holding up seedling divider connecting plate 12, be equipped with the screw rod on seedling feeding connecting piece 13 that corresponds, the screw rod setting is in arc hole I121 and can slide in arc hole I121, the tip of screw rod is equipped with the nut, adjusts the installation angle through the slip of screw rod in arc hole I121 to realize holding up seedling divider connecting plate 12 and seedling feeding connecting piece 13's fixed connection through screwing the nut. The rear part of the seedling feeding connecting piece 13 is provided with an arc hole II 131, a corresponding screw rod is arranged on the seedling supporting feeding base 14, the screw rod is arranged in the arc hole II 131 and can slide in the arc hole II 131, the end part of the screw rod is provided with a nut, the installation angle is adjusted by sliding the screw rod in the arc hole II 131, and the fixed connection between the seedling feeding connecting piece 13 and the seedling supporting feeding base 14 is realized by screwing the nut. The two sides of the front end of the seedling divider connecting plate 12 are symmetrically and fixedly connected with a guide rod I15 and a guide rod II16, and the guide rod I15 and the guide rod II16 are separated in a wing shape to two sides, namely, the distance between the front ends of the guide rod I15 and the guide rod II16 is smaller than the distance between the rear ends.
As shown in fig. 3, the excavating device 2 comprises an excavating shovel 21, a shovel handle 23 and a shovel handle connecting plate 24, wherein the excavating shovel 21 is a two-wing triangle shovel, the front edge width of the excavating shovel 21 is not smaller than the row spacing of two rows of carrots, the excavating shovel 21 is fixed at the front end of the shovel handle 23 through two screws 22, and the front end of the shovel handle 23 is in a blade shape so as to reduce the soil penetration resistance. The rear end of the shovel shaft 23 is connected with a shovel shaft connecting plate 24 through a main pin shaft 26 and a secondary pin shaft 27. Three connecting holes are formed in the shovel handle connecting piece 24, so that the auxiliary pin shaft 27 can be connected through different connecting holes to adjust different digging shovel angles to adapt to soil requirements of different characters and humidity. The shovel handle connecting plate (24) is fixed on the middle bottom side of the front end of the clamping and pulling conveying device 5 through bolts.
As shown in fig. 4, the dual-wheel depth limiting device 3 includes a depth limiting wheel 31, a wheel bracket 32, a screw height adjusting lever 33, a connecting beam 37, a depth limiting support arm 38, and a depth limiting fixed seat 39. The device comprises two depth wheels 31, wherein the depth wheels 31 are respectively connected with a spiral height adjusting rod 33 through a wheel bracket 32 and a supporting rod, and the upper parts of the two spiral height adjusting rods 33 are fixedly connected through a connecting cross beam 37. The screw rod is arranged in the screw height adjusting rod 33, threads are correspondingly arranged on the inner surface of the screw height adjusting rod 33, the screw height adjusting rod 33 is connected with the screw rod through thread transmission, meanwhile, a guide post is arranged on the inner surface of the screw height adjusting rod 33, and when the screw rod rotates, the screw height adjusting rod 33 only moves up and down and does not rotate. The bottom of the screw rod is connected with the top of the supporting rod through a bearing, and the top of the screw rod is fixedly provided with a rotation adjusting rotary handle 34, so that the spiral height adjusting rod 33 moves up and down when the rotation adjusting rotary handle 34 rotates. The two sides of each spiral height adjusting rod 33 are respectively fixed with a K-shaped connecting plate 35, two V-shaped connecting plates 36 are symmetrically arranged on a connecting cross beam 36 corresponding to each spiral height adjusting rod 33, two V-shaped connecting plates 36 are fixedly connected, one V-shaped connecting plate 36 is fixedly connected with two K-shaped connecting plates 35, the other V-shaped connecting plate 36 is fixedly connected with the upper end of a depth limiting supporting arm 38, a limited depth fixing seat 39 is fixed on the inner side of the lower end of the depth limiting supporting arm 38, and the two limited depth fixing seats 39 are respectively fixedly connected with the clamping and pulling conveying device 5. In the process of moving up and down the spiral height adjusting rod 33, the height of the clamping and pulling conveying device 5 is changed through the depth limiting supporting arm 38 and the depth limiting fixing seat 39, so that the relative height between the depth limiting wheel and the excavating shovel is adjusted, and the adjustment of the excavating depth is realized.
As shown in fig. 5, 6 and 7, the clamping and pulling conveying device 5 comprises four sets of clamping and pulling conveying monomers and a longitudinal beam supporting frame 513, the four sets of clamping and pulling conveying monomers are all arranged on the longitudinal beam supporting frame 513, and the clamping and pulling conveying device 5 is connected with the excavating device 2 and the double-wheel depth limiting device 3 through the longitudinal beam supporting frame 513. The clamping and pulling conveying unit comprises a driving pulley 512, a driven pulley 51, a special-shaped clamping conveying belt 55, a driving wheel connecting piece 59, a driven wheel mounting plate 52 and a longitudinal beam 54, wherein the longitudinal beam 54 is in a rectangular tubular shape. The driven pulley 51 is arranged at the top end of the clamping and pulling conveying unit, the driven pulley 51 is arranged on the driven pulley mounting plate 52, the driving pulley 512 is arranged at the tail end of the driven pulley 51, and the driving pulley 512 is arranged on the output shaft of the clamping and conveying belt hydraulic motor 510. The driven wheel mounting plate 52 is fixedly attached to the front end of the longitudinal beam 54. The drive pulley connector 59 includes a front rectangular tube 591, a hinge joint 592 and a rear end plate 593, the hinge joint 592 being located between the front rectangular tube 591 and the rear end plate 593, the hinge joint 592 being fixedly connected with the front rectangular tube 591 and the rear end plate 593 by welding, respectively. The front rectangular tube 591 is inserted into the rectangular tube cavity at the rear end of the longitudinal beam 54, the clamping conveyer belt hydraulic motor 510 is fixed on the rear end plate 593, and the tail part of the rear end plate 593 is provided with a seedling throwing guide rod 511. The profiled clamp conveyor belt 55 is sleeved between the driving pulley 512 and the driven pulley 51, and the profiled clamp conveyor belt 55 can be tensioned or loosened by the clamp conveyor belt tensioning adjustment lever 57.
The clamp belt tensioner lever 57 includes two hinge ends 574, a threaded sleeve 572 and a screw 571, the threaded sleeve 572 and the screw 571 being located between the two hinge ends 574. The two hinge ends 574 are hinged to the drive wheel connector 59 and the longitudinal beam 54, respectively. The threaded sleeve 572 is provided with internal threads, screw rods 571 are respectively arranged at the front end and the rear end of the threaded sleeve 572, the threaded sleeve is connected with the screw rods 571 through threads, one of the two screw rods is in left rotation, and the other screw rod is in right rotation, so that the two screw rods 571 are opposite in movement direction when the threaded sleeve 572 rotates. One end of the screw is connected with the threaded sleeve 572 and the other end is fixedly connected with the hinged end 574. In this embodiment, the external cross section of the threaded sleeve 572 is rectangular, the threaded sleeve 572 can be rotated by a wrench tool, when the threaded sleeve 572 rotates, the screws 571 at the two ends of the threaded sleeve 572 simultaneously move outwards or inwards, at this time, the length of the adjusting rod 57 will be increased or decreased, at this time, the longitudinal beam 54 moves back and forth, so that the distance between the driving pulley 512 and the driven pulley 51 is changed, and the sleeved special-shaped clamping conveyer belt 55 is tensioned or loosened.
As shown in fig. 8 to 11, two adjacent sets of clamping, pulling and conveying monomer combinations can just complete clamping and conveying of two rows of carrot seedling leaves. Each clamping pulling conveying unit is provided with a plurality of elastic pressing devices 53, each elastic pressing device 53 comprises a spring 531 and a pressing wheel I532, one end of each spring 531 is connected with the longitudinal beam 54, the other end of each spring 531 is connected with the pressing wheel I532, the pressing wheels I532 are contacted with the inner side of the special-shaped clamping conveying belt 55, and the pressing wheels I532 apply outward pressing force to the special-shaped clamping conveying belt 55 through elastic force in the springs. The elastic pressing devices 53 of the paired clamping, pulling and conveying monomers are arranged in a staggered mode, so that the clamping of each pair of clamping, pulling and conveying monomer combined clamping belts to the carrot seedling leaves is realized. Among the four sets of single bodies, one end of the single body positioned at the two outer sides is provided with a tensioning wheel 56, the tensioning wheel 56 is in contact with the inner surface of the special-shaped clamping conveying belt 55, the special-shaped clamping conveying belt 55 is applied with force for tensioning the outer sides, the other end of the single body is provided with a pressing wheel II 58, and the pressing wheel II 58 is in contact with the outer surface of the special-shaped clamping conveying belt 55 and applies force for pressing the special-shaped clamping conveying belt 55 inwards.
The root blade cutting device 9 includes two sets of root She Qiege units, each set of root blade cutting units including a pair of outer support plates 97, a pair of inner support plates 94 located between the front ends of the outer support plates, and a single serrated disc cutter 98 located between the rear ends of the outer support plates. The front end of the outer supporting plate 97 is provided with a round hole 971, the rear end is provided with a long arc hole 977, bolts fixedly connected with the longitudinal beam supporting frame 513 and the outer supporting plate 97 are respectively arranged in the round hole 971 and the long arc hole 977, and the inclination angle of the root leaf cutting device 9 is adjusted by adjusting the fixing position of the connecting bolts in the long arc hole 977 during connection.
The bottoms of the front ends of the two inner support plates 94 are respectively welded with a guide feeding rod 91. The inner support ring 94 and the outer support ring 97 are connected by the front clamping elastic means 92 and the rear clamping elastic means 96. The front clamping elastic device 92 and the rear clamping elastic device 96 are composed of a spring and a screw rod, and the screw rod of the front clamping elastic device 92 passes through a through hole I972 on the outer support plate 97 and then passes through the spring to be connected with a threaded hole I941 of the inner support plate 94; the screw rod of back centre gripping resilient means 96 passes through the through-hole II975 on the outer backup pad 97, passes the spring again and is connected with the screw hole II942 of interior backup pad 94 after, and the spring is pressed between interior backup pad 94 and outer backup pad 97, because the diameter of through-hole I972 and through-hole II975 is greater than the diameter of screw rod, consequently, when the carrot seedling leaf thickness of process is greater than two interior backup pads 94 clearance, interior backup pad 94 extrusion spring deformation, and the screw rod can outwards slide along through-hole I972 and through-hole II975 respectively.
Simultaneously, the front end and the rear end of the outer supporting plate 97 are respectively provided with a limiting screw, the front limiting screw 93 and the rear limiting screw 95 respectively penetrate through a threaded hole III973 and a threaded hole IV974 on the supporting plate 97, and the distance between the free end of the limiting screw and the inner supporting plate 94 is adjusted, so that the maximum gap between the two inner supporting plates can be limited. The single sawtooth disc knife 98 is fixedly connected with the output shaft of the cutting hydraulic motor 99, the cutting hydraulic motor 99 is fixedly connected to the two long holes 978 of the outer support plate 97 through bolts, and the height of the carrot seedling She Qiecha can be adjusted by changing the upper and lower positions of the bolts in the long holes 978. The rear ends of the two outer support plates 97 are connected by a screw 976, and the screw 976 is used to connect the two outer support plates 97, while also defining the distance between the two outer support plates 97.
As shown in fig. 12, the conveying and collecting device 10 includes two outer baffles 101, a partition conveying belt 10, a driving roller 104 and a driven roller 109, one side of the outer baffles 101 is fixed with a collecting and conveying hydraulic motor 107, an output shaft of the collecting and conveying hydraulic motor 107 is connected with the driving roller 104 through a transmission chain 106, and the driving roller 104 and the driven roller 109 are respectively arranged between the two outer baffles 101 through a bearing seat and a bearing. The spacer conveyor 102 is a rubber conveyor with spacers having a height of 10cm, the distance between two adjacent spacers is 40cm, and the spacer conveyor 102 is wound between the driving roller 104 and the driven roller 109. The middle part of the inner side of the outer baffle 101 is provided with a lower press roller 108 and an upper press roller 103, and the middle section of the baffle conveyer belt 102 generates a 45-degree rising corner under the constraint of the lower press roller 108 and the upper press roller 103. The rear end of the outer baffle 101 is provided with a collecting bag bracket 105 for hanging the collecting bag.
The harvester adopts full hydraulic drive, the hydraulic integrated device 20 is arranged on the right side of the frame, the engine device 40 drives the hydraulic pump to work, the hydraulic integrated device 20 drives the four clamping conveying belt hydraulic motors 510, the two cutting hydraulic motors 99, the collecting conveying hydraulic motor 107 and the lifting hydraulic cylinder 6 to work through hydraulic components, and the components are independently controlled through the control device 30, so that the coordinated work of the whole harvester is ensured.
In the working process, two rows of seedling leaves of one ridge are separated, lifted and guided and fed between the clamping belts through the double-row seedling supporting feeding device, meanwhile, the digging shovel keeps the digging depth of 30cm under the constraint of the double-wheel depth limiting device to loosen the carrot, the carrot plants fed and shoveled are pulled up by the clamping conveying belt and then clamped and conveyed upwards backwards, when the carrot plants are conveyed to the position of the root leaf cutting device, the carrot seedling leaves enter between the two inner supporting plates with the elastic devices under the guidance of the guiding feeding rod, at the moment, the carrot is still conveyed upwards backwards under the clamping of the clamping conveying belt, as the two inner supporting plates are horizontally arranged, the root of the carrot is pulled to be aligned in the conveying process before cutting, then the carrot is cut in an aligned manner under the action of the high-speed rotating single-sawtooth circular disc knife, the carrot after the root leaf separation falls onto the partition conveying belt of the conveying collecting device, and falls into the collecting bag after conveying and lifting, and the cut leaf leaves are thrown into the field through the clamping conveying belt, and the whole seedling harvesting process is completed.
Claims (5)
1. One-ridge two-row carrot combine harvester, which comprises a frame (7), and is characterized in that: the seedling raising and cutting machine further comprises a double-row seedling raising and feeding device (1), an excavating device (2), a double-wheel depth limiting device (3), a clamping and pulling conveying device (5) and a root cutting device (9), wherein the double-row seedling raising and feeding device (1) is fixed at the top end of the clamping and pulling conveying device (5), the excavating device (2) is fixed at the bottom of the top end of the clamping and pulling conveying device (5), the excavating device (2) is positioned below the double-row seedling raising and feeding device (1), the double-wheel depth limiting device (3) is fixed at the front end of the clamping and pulling conveying device (5), the double-wheel depth limiting device (3) is positioned behind the double-row seedling raising and feeding device (1), the root cutting device (9) is fixed at the bottom of the rear end of the clamping and pulling conveying device (5), the clamping and pulling conveying device (5) is arranged at one side of a frame (7), and the frame is fixed on the supporting surface of a crawler chassis (4);
The double-wheel depth limiting device (3) comprises a depth limiting wheel (31), a wheel bracket (32), a spiral height adjusting rod (33), a connecting cross beam (37), a depth limiting supporting arm (38) and a depth limiting fixed seat (39), the double-wheel depth limiting device comprises two depth limiting wheels (31), the depth limiting wheels (31) are respectively connected with the spiral height adjusting rod (33) through the wheel bracket (32) and a supporting rod, the upper parts of the two spiral height adjusting rods (33) are fixedly connected through the connecting cross beam (37), screws are arranged in the spiral height adjusting rods (33), corresponding inner surfaces of the spiral height adjusting rods (33) are provided with threads, the spiral height adjusting rods (33) are connected with the screws through thread transmission, guide posts are arranged on the inner surfaces of the spiral height adjusting rods (33), the bottoms of the screws are connected with the tops of the supporting rods through bearings, the tops of the screws are fixedly provided with rotary adjusting handles (34), two sides of each spiral height adjusting rod (33) are respectively fixedly provided with K-shaped connecting plates (35), two V-shaped connecting plates (36) are symmetrically arranged on the upper parts of the connecting cross beam (37) corresponding to each spiral height adjusting rod (33), two V-shaped connecting plates (36) are fixedly connected with one connecting plate (36) in a V-shaped mode, the other connecting plate is fixedly connected with one connecting plate (38), the inner side of the lower end of the depth limiting supporting arm (38) is fixed with a depth limiting fixed seat (39), and the two depth limiting fixed seats (39) are respectively and fixedly connected with the clamping, pulling and conveying device (5);
The clamping pulling conveying device (5) comprises four sets of clamping pulling conveying monomers and a longitudinal beam supporting frame (513), the four sets of clamping pulling conveying monomers are arranged on the longitudinal beam supporting frame (513), the clamping pulling conveying device (5) is connected with the excavating device (2) and the double-wheel depth limiting device (3) through the longitudinal beam supporting frame (513), the clamping pulling conveying monomers comprise a driving pulley (512), a driven pulley (51), a special-shaped clamping conveying belt (55), a driving pulley connecting piece (59), a driven pulley mounting plate (52) and a longitudinal beam (54), the longitudinal beam (54) is tubular, the driven pulley (51) is arranged at the top end of the clamping pulling conveying monomers, the driven pulley (51) is arranged on the driven pulley mounting plate (52), the driving pulley (512) is arranged at the tail end of the driven pulley (51), the driving pulley (512) is arranged on the output shaft of the clamping conveying belt hydraulic motor (510), the driven pulley mounting plate (52) is fixedly connected with the front end of the longitudinal beam (54), the driving pulley connecting piece (59) comprises a front end rectangular pipe (591), a hinge joint (592) and a rear end plate (593), the hinge joint (592) is arranged between the front end rectangular pipe (591) and the rear end plate (593) and the front end rectangular pipe (593) through welding respectively, the rectangular pipe (591) at the front end is inserted into the rectangular pipe inner cavity at the rear end of the longitudinal beam (54), the hydraulic motor (510) for clamping the conveyer belt is fixed on the rear end plate (593), the seedling throwing guide rod (511) is arranged at the tail part of the rear end plate (593), and the special-shaped clamping conveyer belt (55) is sleeved between the driving belt wheel (512) and the driven belt wheel (51);
The clamping conveying belt tensioning adjusting rod (57) comprises two hinge ends (574), a threaded sleeve (572) and a screw rod (571), wherein the threaded sleeve (572) and the screw rod (571) are positioned between the two hinge ends (574), the two hinge ends (574) are respectively hinged with a driving wheel connecting piece (59) and a longitudinal beam (54), the threaded sleeve (572) is provided with internal threads, the front end and the rear end of the threaded sleeve are respectively provided with the screw rod (571) and are connected with the screw rod (571) through threads, one of the two screw rods is in left-handed rotation, the other screw rod is in right-handed rotation, one end of the screw rod is connected with the threaded sleeve (572), and the other end of the screw rod is fixedly connected with the hinge ends (574);
Two adjacent sets of clamping and pulling conveying single bodies are combined, a plurality of sets of elastic pressing devices (53) are respectively arranged on each set of clamping and pulling conveying single body, each elastic pressing device (53) comprises a spring (531) and a pressing wheel I (532), one end of each spring (531) is connected with a longitudinal beam (54), the other end of each spring is connected with each pressing wheel I (532), each pressing wheel I (532) is in contact with the inner side of a special-shaped clamping conveying belt (55), the pressing wheels I apply outward pressing force to the special-shaped clamping conveying belt (55) through elastic force in each spring (531), the elastic pressing devices (53) of the clamping and pulling conveying single bodies in pairs are arranged in a staggered mode, one end of each clamping and pulling conveying single body located at the two outer sides is provided with a tensioning wheel (56), each tensioning wheel (56) is in contact with the inner surface of the special-shaped clamping conveying belt (55), each clamping and is provided with a pressing wheel II (58), each pressing wheel II (58) is in contact with the outer surface of the special-shaped clamping conveying belt (55), and applies inward pressing force to the special-shaped clamping conveying belt (55);
The double-row seedling-supporting feeding device (1) consists of three seedling-supporting feeding monomers, each seedling-supporting feeding monomer comprises a seedling-supporting divider (11), a seedling-supporting divider connecting plate (12), a seedling-supporting feeding connecting piece (13) and a seedling-supporting feeding base (14), the seedling-supporting divider (11) is in a bent shape, the front end of the seedling-supporting divider is horizontal with the ground, the rear end of the seedling-supporting divider is obliquely arranged, the bottom surface of the rear end of the seedling-supporting divider (11) is welded with the seedling-supporting divider connecting plate (12), the front end of the seedling-supporting feeding connecting piece (13) is hinged with the seedling-supporting divider connecting plate (12), the rear end of the seedling-supporting feeding connecting piece (13) is hinged with the seedling-supporting feeding base (14), the seedling-supporting feeding base (14) is fixedly connected with the clamping and pulling conveying device (5), the seedling-supporting divider connecting plate (12) is provided with an arc-shaped hole I (121), the corresponding seedling-supporting feeding connecting piece (13) is provided with a screw, the screw is arranged in the arc-shaped hole I (121) and is welded with the seedling-supporting divider connecting plate (12), the front end of the arc-shaped connecting piece (131) is arranged in the arc-shaped hole II, the arc-shaped connecting rod (13) is arranged in the arc-shaped connecting plate (13) and is provided with the arc-shaped connecting plate (131) and the two sides of the guide rod (II) at the front end (131), the guide rod I (15) and the guide rod II (16) are separated in a wing shape to two sides, and the distance between the front ends of the guide rod I (15) and the guide rod II (16) is smaller than the distance between the rear ends.
2. The one-ridge two-row carrot combine harvester according to claim 1, wherein: the excavating device (2) comprises an excavating shovel (21), a shovel handle (23) and a shovel handle connecting plate (24), wherein the excavating shovel (21) is a two-wing triangular shovel, the excavating shovel (21) is fixed at the front end of the shovel handle (23) through two screws (22), the front end of the shovel handle (23) is in a blade shape, the rear end of the shovel handle (23) is connected with the shovel handle connecting plate (24) through a main pin shaft (26) and an auxiliary pin shaft (27), three holes connected with the shovel handle are formed in the shovel handle connecting plate (24), and the shovel handle connecting plate (24) is fixed at the middle bottom side of the front end of the clamping pulling conveying device (5).
3. The one-ridge two-row carrot combine harvester according to claim 1, wherein: the root leaf cutting device (9) comprises two sets of root She Qiege monomers, each set of root leaf cutting monomers comprises a pair of outer supporting plates (97), a pair of inner supporting plates (94) positioned between the front ends of the two outer supporting plates, a single-sawtooth disc cutter (98) positioned between the rear ends of the two outer supporting plates, a round hole (971) is formed in the front end of each outer supporting plate (97), a long arc hole (977) is formed in the rear end of each outer supporting plate, bolts for fixedly connecting a longitudinal beam supporting frame (513) with each outer supporting plate (97) are respectively arranged in the round hole (971) and the long arc holes (977), guide feeding rods (91) are welded at the bottoms of the front ends of the two inner supporting plates (94), and the inner supporting plates (94) are connected with the outer supporting plates (97) through front clamping elastic devices (92) and rear clamping elastic devices (96); the front clamping elastic device (92) and the rear clamping elastic device (96) are composed of a spring and a screw rod, and the screw rod of the front clamping elastic device (92) penetrates through a through hole I (972) on the outer supporting plate (97) and then is connected with a threaded hole I (941) of the inner supporting plate (94) after penetrating through the spring; the screw rod of the rear clamping elastic device (96) passes through a through hole II (975) on the outer support plate (97), then passes through the spring and is connected with a threaded hole II (942) of the inner support plate (94), and the spring is pressed between the inner support plate (94) and the outer support plate (97);
The front end and the rear end of the outer supporting plate (97) are respectively provided with a limiting screw, a front limiting screw (93) and a rear limiting screw (95) respectively penetrate through a threaded hole III (973) and a threaded hole IV (974) on the outer supporting plate (97), the single-sawtooth disc cutter (98) is fixedly connected with an output shaft of the cutting hydraulic motor (99), the cutting hydraulic motor (99) is fixed on two long holes (978) of the outer supporting plate (97) through a bolt connection, and the rear ends of the two outer supporting plates (97) are connected through a connecting screw (976).
4. The one-ridge two-row carrot combine harvester according to claim 1, wherein: the automatic lifting and pulling device is characterized by further comprising a conveying collecting device (10), a hydraulic integration device (20), a control device (30), an engine device (40) and a crawler chassis (4), wherein the conveying collecting device (10) is positioned on the outer side of the rear end of the clamping and pulling conveying device (5), and the conveying collecting device (10), the hydraulic integration device (20), the control device (30) and the engine device (40) are fixed on the frame (7).
5. The one-ridge two-row carrot combine harvester according to claim 4, wherein: the conveying collection device (10) comprises two outer baffles (101), a baffle conveying belt (102), a driving roller (104) and a driven roller (109), wherein one side of the outer baffles (101) is fixedly provided with a collecting and conveying hydraulic motor (107), an output shaft of the collecting and conveying hydraulic motor (107) is connected with the driving roller (104) through a transmission chain (106), the driving roller (104) and the driven roller (109) are respectively arranged between the two outer baffles (101) through bearing seats and bearings, the baffle conveying belt (102) is a rubber conveying belt with a baffle at intervals, the baffle conveying belt (102) is wound between the driving roller (104) and the driven roller (109), the middle part of the inner side of the outer baffle (101) is provided with a lower pressing roller (108) and an upper pressing roller (103), the middle section of the baffle conveying belt (102) generates a 45-degree rising corner under the restraint of the lower pressing roller (108) and the upper pressing roller (103), and the rear end of the outer baffle (101) is provided with a collecting bag support (105).
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| CN110050565A (en) * | 2019-04-23 | 2019-07-26 | 重庆智田科技有限公司 | A kind of draw type radish harvester device people |
| CN113079799B (en) * | 2019-12-23 | 2025-07-04 | 李英涛 | Carrot harvester |
| CN111656945A (en) * | 2020-06-04 | 2020-09-15 | 玉溪新天力农业装备制造有限公司 | A radish efficient harvester |
| CN116508477B (en) * | 2022-12-21 | 2025-06-06 | 常州嘉耘机械有限公司 | Radish harvester and harvesting method based on seedling strip recognition |
| CN116762548A (en) * | 2023-06-21 | 2023-09-19 | 农业农村部南京农业机械化研究所 | Harvesting table for multi-row harvesting of narrow row spacing crops |
| CN116998297B (en) * | 2023-06-21 | 2025-09-02 | 农业农村部南京农业机械化研究所 | Garlic combine harvester |
| CN119699042A (en) * | 2024-12-20 | 2025-03-28 | 农业农村部南京农业机械化研究所 | Ramie harvester and stripper |
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