CN211240845U - Multi-row combine harvester for green vegetable heads - Google Patents

Multi-row combine harvester for green vegetable heads Download PDF

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Publication number
CN211240845U
CN211240845U CN201921962798.2U CN201921962798U CN211240845U CN 211240845 U CN211240845 U CN 211240845U CN 201921962798 U CN201921962798 U CN 201921962798U CN 211240845 U CN211240845 U CN 211240845U
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leaf
wheel
conveying
belt
rubber
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肖宏儒
金月
蒋清海
宋志禹
孙洪友
杨光
张健飞
姚森
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Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Abstract

The utility model relates to a multi-row combine harvester for green vegetable heads, which belongs to the technical field of agricultural machinery. The machine comprises a rack and a power transmission mechanism on a crawler chassis, wherein the rack supports a leaf clamping lifting and conveying mechanism and a root cutting mechanism and a leaf cutting mechanism at the front end and the rear end of the leaf clamping lifting and conveying mechanism; the leaf clamping lifting conveying mechanism comprises at least two pairs of inner side clamping return ring conveying belts, each return ring conveying belt comprises a wheel frame extending along the conveying direction, the front end and the rear end of each wheel frame are respectively provided with a supporting belt wheel capable of adjusting and positioning, one end of a wheel arm is hinged in the length direction of each wheel frame at intervals, and the other end of each wheel arm is provided with a tensioning belt wheel tending to the clamping direction; the support belt wheel and the tension belt wheel are surrounded by a V-shaped belt, and the support belt wheel at the front end of the wheel frame and the V-shaped belt at the tension belt wheel form a guide inclined plane. The utility model discloses properly solved the green vegetable head results and cut the root, carried, removed a series of difficult problems such as leaf, can realize accurate root cutting and can't harm the transport to the results quality of mechanized results has been guaranteed.

Description

Multi-row combine harvester for green vegetable heads
Technical Field
The utility model relates to a soil surface nodulation class vegetable harvesting machine of stem leaf, especially a green vegetable head multirow combine belongs to agricultural machine technical field.
Background
The famous Brassica napobrassica (L.) Moench is the main raw material for making Fuling hot pickled mustard tuber. The harvesting of the head of the green vegetables always mainly adopts manual harvesting, has high labor intensity and low working efficiency, and seriously influences the yield, the quality and the economic benefit of the preserved szechuan pickle.
As can be seen from the above, the chinese patent application No. 201910252863.0 discloses a harvesting machine for harvesting vegetable heads, which includes a harvesting mechanism for harvesting vegetable heads, a self-propelled chassis with a loading box, and a suspension adjustment mechanism for connecting the self-propelled chassis and the harvesting mechanism and for adjusting the angle of the harvesting mechanism. However, the V-shaped knife adopted in the patent application belongs to unpowered cutting in structure, the action after the vegetable is buried is similar to that of a digging shovel for pulling, and the vegetable head belongs to vegetables which are nodulated on the soil surface, so that the position of underground digging is necessarily too low, and a secondary root cutting mechanism is required to be equipped; in addition, the nodular stem of vegetable head all has great difference with the diameter to grow highly, and secondary cuts a mechanism and lacks highly spacing, can't realize accurate root cutting.
In addition, chinese patent No. 201610521653.3 proposes a tuber mustard harvester, which comprises a main frame, wherein the main frame is provided with a power device, a clamping and pulling device and a front-mounted disc root cutting device; the power device is arranged at the rear part of the main frame and comprises a power mechanism, the power mechanism is connected with a belt pulley on the reduction gearbox through a belt, a first output shaft is arranged on the reduction gearbox, a first chain disc is arranged on the first output shaft and connected with a second chain disc through a first chain, and the second chain disc is arranged on an input shaft of the clutch assembly. The machine finishes the harvesting of the preserved szechuan pickle by the clamping pulling device and the front disc root cutting device, can finish the harvesting of the preserved szechuan pickle in a small area in hilly and mountainous areas, and can finish the cutting of the root of the preserved szechuan pickle once. This patent application adopts the centre gripping to pull out the device and carries the preserved szechuan pickle, cliies the leaf and the stem of preserved szechuan pickle through holding band and spoke, because the individual shape of preserved szechuan pickle, size difference are great, and the centre gripping is pulled out the device and is not had the elasticity straining device of adaptability, and has relative slip between preserved szechuan pickle and spoke in the transportation, and the protruding position damage to the preserved szechuan pickle is big. In addition, although the leaf and stem cutting knife can remove most of the leaves above the tuber mustard and discharge the cut stems and leaves by matching with the leaf guide plate, the leaf and stem cutting knife can not completely remove the stems and leaves of the tuber mustard due to the growth specificity of the nodular stems and leaves of the tuber mustard and can not meet the high-quality harvesting requirement.
In short, the unique growth characteristics of the vegetable heads, such as developed fibrous roots, fragile and easily broken stems and leaves, large size and shape difference of nodular stems, and uneven growth height, are the reasons for the difficulty in realizing high-quality mechanical harvest of clean vegetables (without roots, damage and leaves). In conclusion, the prior art can not properly solve the problems of root cutting, conveying, stem and leaf cutting and neoplastic stem separation during the harvesting of the green vegetable heads. Moreover, no matter the hanging adjusting mechanism or the height adjusting rod is adopted to adjust the overall height of the header, for multi-row (2 rows and above) harvesting, when the root cutting heights of the vegetable heads in all rows are inconsistent, the cutting height of each row cannot be independently adjusted, and the root cutting quality is difficult to ensure.
Disclosure of Invention
The utility model discloses a first aim at: the multi-row combined harvester for the green vegetable heads realizes reliable and nondestructive conveying, thereby properly solving the difficult problem of harvesting and conveying the green vegetable heads and laying a foundation for ensuring the harvesting quality of mechanized harvesting.
The utility model discloses further aim at: the utility model provides a green vegetable head multirow combine harvester that can realize accurate root cutting to effectively improve the results quality of mechanical harvesting.
The utility model discloses further aim at: provides a multi-row combined harvester for removing the harvested stems and leaves of the green vegetable heads, thereby really ensuring that the high-quality green vegetable heads meeting the commercialization requirement can be directly obtained without secondary processing after mechanical harvesting.
In order to achieve the above primary purpose, the utility model discloses green vegetable head multirow combine's basic technical scheme does: the leaf clamping and lifting conveying mechanism is arranged on the crawler chassis, the front end and the rear end of the leaf clamping and lifting conveying mechanism are respectively provided with a root cutting mechanism and a leaf cutting mechanism;
the rear end of the leaf clamping lifting and conveying mechanism is hinged to an upright post of the frame, and a front extending arm of the upright post is connected with the middle part of the leaf clamping lifting and conveying mechanism; the front part of the leaf clamping lifting conveying mechanism is supported on the profiling wheel;
the leaf clamping lifting conveying mechanism comprises at least two pairs of inner side clamping return ring conveying belts, each return ring conveying belt comprises a wheel frame extending along the conveying direction, the front end and the rear end of each wheel frame are respectively provided with a supporting belt wheel capable of adjusting and positioning, one end of a wheel arm is hinged in the length direction of each wheel frame at intervals, and the other end of each wheel arm is provided with a tensioning belt wheel tending to the clamping direction; the V-shaped belt is wound on the supporting belt wheel and the tensioning belt wheel, and the V-shaped belt at the supporting belt wheel and the tensioning belt wheel at the front end of the wheel frame form a guide inclined plane.
When the utility model discloses a harvester during the operation that moves ahead, stem leaf after cutting the root is by the interior loopa conveyer belt centre gripping in pairs, promotes the transport gradually, because the tumour stem is in the state of dangling this moment, consequently no matter how its size shape, can not influence the transport to properly solved the green vegetable head and reaped and carried a difficult problem, laid a good foundation for the results quality of guaranteeing mechanized results.
In order to achieve a further purpose, the front extending arm of the upright post is connected with the middle part of the leaf clamping lifting conveying mechanism through a profiling adjusting mechanism; the profiling adjusting mechanism is provided with a profiling mounting seat which is fixed at the front end of the forward extending arm and provided with a hinged joint, and a height adjusting rod which forms a moving pair with the hinged joint; the height adjusting rod is provided with spacing pin holes which are distributed at intervals, the lower end of the height adjusting rod is hinged with the upper end of the door-shaped frame, a top spring sleeved on the height adjusting rod is arranged between the door-shaped frame and the front extending arm, and the lower end of the door-shaped frame is fixedly connected with the middle part of the leaf clamping lifting conveying mechanism; the front part of the leaf clamping lifting conveying mechanism is supported on a profile wheel with adjustable height;
the root cutting mechanism comprises a light circular cutter disc and a sawtooth circular cutter disc which are arranged below the guide inclined plane of the corresponding loop conveying belt in a V-shaped overlapping distribution; the vertical transmission shafts of the optical disk cutter and the sawtooth disk cutter are respectively supported on transmission shaft mounting seats fixed on corresponding wheel carriers, and the upper end of the transmission shaft is in transmission connection with a power transmission mechanism positioned at the front end of the front extension arm through a universal transmission mechanism comprising two stages of universal joints.
When the harvester will right the green vegetable head that goes into to press from both sides leaf and promote conveying mechanism, the root of tumour stem below will be amputated by the light of V-arrangement distribution, the high efficiency of tooth double circular disc sword, because the utility model discloses avoided the cutting area of blade disc and ground contact basically, and two disc spaces have certain overlap region, and the cutting resistance when the root is cut into soil to the shallow that has significantly reduced has avoided the continuous phenomenon of cutting in-process core. Especially, in order to solve the problem that the corresponding land parcel of actual harvest operation is inconsistent in roughness in order to guarantee accurate root cutting, the utility model discloses realized the self-adaptation regulation of cutting height, the principle is because the lower extreme of door-shaped frame links firmly with the middle part of the leaf-clamping lifting conveying mechanism, and is articulated with the height adjusting rod lower extreme of upper portion, and the height adjusting rod is inserted in the articulated joint of the profile modeling mount pad and upper portion is through the locating part in its spacing hole, the lower part is equipped with the top spring; therefore, when the front field block becomes high, the top spring is compressed, and the header is lifted by itself; when the front field block becomes low, the top spring resets and the header descends, thereby realizing independent self-adaptive profiling of each row. In the process, the height of the front end of the leaf clamping lifting conveying mechanism is adjusted by means of the height-adjustable profiling wheel, so that the optical disc cutter and the toothed disc cutter are positioned at an ideal cutting height position, at the moment, although the vertical distance from the optical disc cutter and the toothed disc cutter to the power transmission mechanism is changed, the universal transmission mechanism with two stages of universal joints in the middle can completely compensate the change, the transmission is always kept smooth, and the actual requirement of accurate root cutting can be met practically.
In order to achieve a further purpose, the leaf cutting mechanism comprises a pair of leaf gathering double rollers which are correspondingly arranged at the output end of the pair of loop conveying belts and driven by the transmission mechanism, the rotating shafts of the leaf gathering double rollers are vertical to the conveying direction, and the lower end of one of the leaf gathering double rollers is provided with a leaf cutting circular disc cutter; a leaf discharging auger with a discharge port at one end is connected to the rear lower part of the leaf gathering double rollers;
the leaf removing mechanism connected with the collecting device is mounted below the leaf cutting mechanism, the leaf removing mechanism comprises rubber rollers vertical to the rotating direction and the conveying direction, a shifting fork conveying chain moving towards an output port along the axial direction of the rubber rollers is mounted above the rubber rollers, a flat belt lifting device with conveying belt baffles distributed at intervals is received below the output port, and the collecting box is received below the lifting device.
Therefore, when the green vegetable head is conveyed to the tail end of the leaf clamping lifting conveying mechanism, the stem leaves above the nodose stems are clamped by the leaf clamping double-roller pair, are cut by the leaf cutting circular disc cutter at the position close to the nodose stems, fall into the leaf discharging auger under the action of the leaf clamping double-roller pair, and are discharged from the side of the discharge port of the leaf discharging auger to return to the field. Meanwhile, the cauliflower head tumor stems fall onto the rubber pair rollers of the leaf removing mechanism under the action of gravity, and are driven to turn over by the turning shafts with the shifting forks in the process of being shifted to one side of the output port by the shifting fork conveying chains, meanwhile, the rubber pair rollers turn inwards relatively to pull down and peel off the leaves, and the leaves remained on the cauliflower head tumor stems are thoroughly peeled off under the extrusion internal rotation action of the rubber pair rollers; then the leaf-removed and impurity-removed vegetable heads (cleaned vegetables) fall onto the flat belt lifting device and are conveyed to the collecting box. Therefore, the leaf cutting mechanism and the leaf removing mechanism are reasonably combined, so that the aim of directly providing clean vegetable heads meeting the commercialized requirements after mechanical harvesting is realized.
The utility model is further perfected in that the leaf clamping lifting conveying mechanism consists of four pairs of inner clamping loop conveying belts, the leaf removing mechanism comprises a left front rubber pair roller and a right back rubber pair roller, and a baffle with a herringbone cross section is arranged above the middle of the two pairs of rubber pair rollers; and turnover shafts with shifting forks are respectively arranged at the outer sides above the left front rubber pair roller and the right rear rubber pair roller.
A shifting fork conveying chain which is looped on the baffle is arranged above the left front rubber paired rollers and the right rear rubber paired rollers, and the front part of the shifting fork conveying chain on the left front rubber paired rollers and the rear part of the shifting fork conveying chain on the right rear rubber paired rollers move towards the right front output port and the left rear output port along the axial direction of the rubber paired rollers respectively; and a flat belt right lifting device and a flat belt left lifting device with conveying belt baffles distributed at intervals are respectively connected below the right front output port and the left rear output port.
The utility model discloses further perfect again, the middle part of protraction arm constitutes horizontal migration through the slide rail with the upper end of rubber wheel vaulting pole vice, the middle part of vaulting pole is articulated with the end of stretching out who installs in the electric putter of frame through articulated mount pad.
The utility model discloses still further perfection is, has on the transmission shaft mount pad and can adjust the back location transmission shaft axial position's vertical bearing frame.
The utility model discloses further perfection is again, the bracing piece of contour wheel and install and constitute the lockable pair of removal with the contour wheel altitude mixture control seat of pressing from both sides leaf promotion conveying mechanism one side.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic plan projection structure of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a schematic perspective view of the root cutting mechanism in the embodiment of fig. 1.
Fig. 5 is a schematic perspective view of the leaf clamping lifting conveying mechanism in the embodiment of fig. 1.
Fig. 6 is a schematic perspective view of the leaf cutting mechanism in the embodiment of fig. 1.
Fig. 7 is a schematic perspective view of the leaf removing mechanism and the collecting device in the embodiment of fig. 1.
Fig. 8 is a schematic perspective view of the power transmission mechanism in the embodiment of fig. 1.
In the figure, 1 a root cutting mechanism, 2 a profiling adjusting mechanism, 3 a height adjusting mechanism, 4 crawler belt chassis, 5 a collecting device, 6 a power transmission mechanism, 7 a leaf cutting mechanism, 8 a frame, 9 a leaf clamping lifting conveying mechanism and 10 a leaf removing mechanism; 1-1 light circular disc cutter, 1-2 sawtooth circular disc cutters, 1-3 transmission shaft mounting seats, 1-4 universal transmission mechanisms, 1-4-1 first universal joint, 1-4-2 second universal joints, 1-5 power transmission mechanisms, 1-6 driving bevel gear boxes and 1-7 transmission shafts; 2-1 height adjusting rod, 2-2 profiling mounting seat, 2-3 door-shaped frame, 2-4 profiling wheel, 2-5 profiling wheel height adjusting seat, 2-6 top spring and 2-7 hinge joint; 3-1 rubber wheel, 3-2 electric push rod, 3-3 hinged mounting seat, 3-4 sliding rail and 3-5 supporting rod; 5-1 collecting box, 5-2-1 left lifting device, 5-2-2 right lifting device and 5-2-3 conveying belt baffle; the device comprises a 6-1 engine, a 6-2 middle transmission shaft, a 6-3 left transmission half shaft, a 6-4 leaf clamping transmission mechanism, a 6-5 leaf removing transmission mechanism, a 6-6 right transmission half shaft, a 6-7 cutting transmission mechanism, a 6-8 first electromagnetic clutch and a 6-9 second electromagnetic clutch; 7-1 leaf gathering roller pair, 7-2 leaf cutting disc cutter, 7-3 leaf cutting transmission mechanism, 7-4 rows of leaf packing auger and 7-5 discharge port; 8-1 upright column, 8-2 front extending arm; 9-1V-shaped belt, 9-2 tension belt wheels, 9-3 guide inclined planes, 9-4 support belt wheels, 9-5 wheel frames, 9-6 wheel arms and 9-7 tension springs; 10-1-1 left front rubber pair roller, 10-1-2 right rear rubber pair roller, 10-2 turning shaft with shifting fork, 10-3 baffle plates, 10-4 shifting fork conveying chain, 10-5 right front output port and 10-6 left rear output port.
Detailed Description
The embodiment is a multi-row combined harvester with four rows of green vegetable heads, which comprises a rack 8 and a power transmission mechanism 6, wherein the rack 8 is arranged on a crawler chassis 4, the rack 8 supports a leaf clamping lifting and conveying mechanism 9 with a low front part and a high rear part, and the front end and the rear end of the leaf clamping lifting and conveying mechanism 9 are respectively provided with a root cutting mechanism 1 and a leaf cutting mechanism 7; the frame 8 is connected with the middle part of the leaf clamping lifting conveying mechanism 9 through the profiling adjusting mechanism 2, the front extending arm of the frame 8 is supported on the height adjusting mechanism 3, and the lower part of the leaf cutting mechanism 7 is connected with the leaf removing mechanism 10 of the output end bearing receiving device 5.
Referring to fig. 1 to 3, a frame 8 on a crawler chassis 4 is provided with an upright post 8-1 and a front extending arm 8-2, the upper part of the upright post 8-1 is hinged with the rear end of a leaf clamping lifting conveying mechanism 9, the front end of the front extending arm 8-2 is connected with the middle part of the leaf clamping lifting conveying mechanism 9 through a profiling adjusting mechanism 2, the middle part of the front extending arm 8-2 and the upper end of a supporting rod of a rubber wheel 3-1 form a horizontal moving pair through a sliding rail 3-4, and the middle part of the supporting rod is hinged with the extending end of an electric push rod 3-2 arranged on the frame through a hinged mounting seat 3-3, so that a height adjusting mechanism 3 is formed, and the relative position of the frame front extending arm 8-2 and the rubber wheel 3-1 can be conveniently adjusted and controlled to be in an ideal.
The profile modeling adjusting mechanism 2 is provided with a profile modeling mounting seat 2-2 which is fixed at the front end of the front arm 8-2 and is provided with a hinged joint and is opposite to each row, and a height adjusting rod 2-1 which is vertically inserted in a hole of the hinged joint 2-7 and forms a moving pair with the hinged joint. The height adjusting rod 2-1 is provided with spacing pin holes which are distributed at intervals and used for selectively inserting spacing pieces such as cotters and the like according to the height adjusting requirement, the lower end of the height adjusting rod 2-1 is hinged with the upper end of the door-shaped frame 2-3, a top spring 2-6 which is sleeved on the height adjusting rod 2-3 is arranged between the door-shaped frame 2-3 and the front extending arm 8-2, the lower end of the door-shaped frame 2-3 is fixedly connected with the middle part of a wheel frame 9-5 corresponding to the leaf clamping lifting and conveying mechanism 9, and the left side and the right side of each row are respectively provided with a left wheel frame 9-5 and a right wheel frame 9-5, so that each row of the leaf clamping lifting and conveying mechanism 9 can respectively adjust the inclination angle. The supporting rods of the profile wheels 2-4 and the profile wheel height adjusting seats 2-5 arranged on one side of the leaf clamping lifting and conveying mechanism 9 form a lockable moving pair, so that the supporting height can be adjusted as required, and the requirement of accurate root cutting is met practically.
The root cutting mechanism 1 comprises a light disk cutter 1-1 and a sawtooth disk cutter 1-2 which are respectively positioned below a guide inclined plane of each corresponding loop conveyor belt and are distributed in a V-shaped overlapping manner, vertical transmission shafts 1-7 of the light disk cutter 1-1 and the sawtooth disk cutter 1-2 are respectively supported on transmission shaft mounting seats 1-3 fixed on corresponding wheel carriers 9-5, the upper end of each transmission shaft 1-7 is in transmission connection with a power transmission mechanism 1-5 positioned at the front end of a front extending arm 8-2 through a two-stage universal transmission mechanism 1-4 comprising a first universal joint 1-4-1 and a second universal joint 1-4-2, and the power of the power transmission mechanism 1-5 is sourced from a driving bevel gear box 1-6. The mounting angle between the disc cutter and the ground can be adjusted through 4 mounting bolts between the transmission shaft mounting seats 1-3 for supporting the transmission shafts 1-7 and the rack, so that the double disc cutter can be guaranteed to be mounted in a V shape; in addition, the transmission shaft mounting seat 1-3 is provided with a vertical bearing seat capable of adjusting the axial position of the transmission shaft 1-7, and the axial position of the transmission shaft 1-7 is actually axially positioned by a set screw on the vertical bearing seat, so that the height between the disc and the clamping blade conveying mechanism can be adjusted.
The leaf clamping lifting conveying mechanism 9 with the input end and the output end respectively provided with the root cutting mechanism 1 and the leaf cutting mechanism 7 is shown in detail in figure 5 and comprises four pairs of inner-side clamped loop conveying belts, each loop conveying belt comprises a pipe strip-shaped wheel carrier 9-5 extending along the conveying direction, the front end of each wheel carrier 9-5 is inserted with a telescopic head for supporting an adjustable supporting belt wheel 9-4, the telescopic head can be telescopically adjusted by means of bolts, so that the adjustable supporting belt wheel 9-4 plays a tensioning role, and the rear end of the wheel carrier 9-5 is provided with a positioning supporting belt wheel 9-4'. One end of a wheel arm 9-6 is hinged at intervals in the length direction of the wheel frame 9-5, and the other end of the wheel arm 9-6 is provided with a tension belt wheel 9-2 which tends to clamp the direction by a tension spring 9-7. V-shaped belts 9-1 are wound on the supporting belt wheels and the tensioning belt wheels, the adjustable supporting belt wheels 9-4 at the front end of the wheel frame and the V-shaped belts at the tensioning belt wheels 9-2 form a guiding inclined plane 9-3, and the front ends of the paired loop conveying belts are splayed guiding openings.
The leaf cutting mechanism 7 is shown in fig. 6 and comprises a pair of leaf gathering roller pairs 7-1 driven by a leaf cutting transmission mechanism 7-3 correspondingly arranged at the output ends of the pair of loop conveyor belts. The rotating shaft of the leaf gathering double-roller 7-1 is vertical to the conveying direction, the positioning support belt wheel 9-4' is sleeved below the positioning support belt wheel, and the lower end of one of each pair of leaf gathering double-roller 7-1 is provided with a leaf cutting circular disc cutter 7-2; a leaf discharge auger 7-4 with a discharge outlet 7-5 at one end is connected with the rear lower part of the leaf gathering double roller 7-1.
The lower part of the leaf cutting mechanism 7 is provided with a leaf removing mechanism 10 connected with the collecting device 5, as shown in figure 7, the leaf removing mechanism 10 comprises a left front rubber pair roller 10-1-1 and a right rear rubber pair roller 10-1-2 with the rotating direction vertical to the conveying direction, and a baffle plate 10-3 with a herringbone cross section is arranged above the middle of the two pairs of rubber pair rollers, so that fallen cauliflower head tumor-shaped stems are respectively guided between the rubber pair rollers. The outer sides of the upper parts of the left front rubber pair roller 10-1-1 and the right rear rubber pair roller 10-1-2 are provided with turnover shafts 10-2 with shifting forks distributed at intervals, and the turnover shafts are used for stirring the vegetable heads to turn over, so that blades at all parts of the turnover shafts can be removed completely. And a shifting fork conveying chain 10-4 which is looped to the baffle plate 10-3 is also arranged above the two pairs of rubber rollers, and the front part of the shifting fork conveying chain on the left front rubber roller 10-1-1 and the rear part of the shifting fork conveying chain on the right rear rubber roller 10-1-2 respectively move towards the right front output port 10-5 and the left rear output port 10-6 along the axial direction of the rubber rollers, so that the cauliflower head nodular stems on the two pairs of rubber rollers can be respectively shifted to the corresponding output ports. The lower parts of the two outlets are respectively provided with a flat belt left lifting device 5-2-1 and a flat belt right lifting device 5-2-2 with a baffle 5-2-3 of a conveying belt distributed at intervals, and the lower parts of the two lifting devices are respectively provided with a collecting box 5-1.
As shown in FIG. 8, the power transmission mechanism 6 of the present embodiment is characterized in that a power output shaft of an engine 6-1 is in transmission connection with a cutting transmission mechanism 6-7, a leaf clamping transmission mechanism 6-4 and a leaf removing transmission mechanism 6-5 through a middle transmission shaft 6-2 and a right transmission half shaft 6-6 with a first electromagnetic clutch 6-8 and a left transmission half shaft 6-3 with a second electromagnetic clutch 6-9 respectively. The transmission links of the loop conveying belt, the transmission of the cut leaves, the rotation of the rubber pair rollers, the rotation of the turnover shaft and the like are not limited to the conventional transmission mechanisms such as gears and chain belts, so detailed description is not given.
Experiments prove that the four-row green vegetable head multi-row combined harvester of the embodiment has the following remarkable advantages:
1) the outer sides of the left and right wheel frames 9-5 of each row are provided with profile wheels 2-4, so that the inclination angle between the leaf clamping lifting conveying mechanism 9 and the ground can be adjusted by adjusting the height from the foremost end to the ground, thereby being suitable for the smooth harvesting of various types of vegetable heads;
2) the initial height of the two disc cutters 1-1 and 1-2 from the ground can be adjusted through the transmission shaft mounting seat 1-3, and the height of the vertical transmission shaft 1-7 can also be positioned and adjusted by a set screw of a vertical bearing seat on the mounting seat, so that the requirement of accurate root cutting is practically met;
3) each row of portal frames 2-3, the lower ends of which are fixedly connected with wheel frames 9-5 corresponding to the leaf clamping lifting and conveying mechanism 9, can be selectively installed and limited and adjusted on the profiling installation seats 2-2 through height adjusting rods 2-1 on the upper portions of the portal frames, so that when a field block in front is heightened, the jacking springs are compressed, the header is lifted, when the field block in front is lowered, the jacking springs are reset, the header is lowered, independent and self-adaptive profiling of each row is realized, accurate root cutting is further ensured in the actual harvesting operation process, the requirement on the flatness of the field block is lower, and the adaptability is high;
4) when the machine needs to be transferred, the electric push rod 3-2 extends out, the hinged slide rail 3-4 of the support rod 3-5 above the rubber wheel 3-1 moves forwards, the forward extending arm 8-2 is pushed to be lifted, and the header is driven to be integrally improved to be conveniently transferred;
5) the leaves are clamped by the leaf clamping lifting conveying device, so that the leaves can be reliably conveyed no matter how the shape and size of the tumor-shaped stem are individual, and the tumor-shaped stem cannot be damaged;
6) when the root-cut vegetable head is conveyed to the tail end of the leaf clamping lifting conveying device, most of the leaves above the nodose stems are cut off by the leaf cutting circular disc cutter, and fall into the leaf discharging auger under the action of the leaf collecting roller to be discharged laterally and returned to the field.
In a word, the harvesting machine for the green vegetable heads with the cutting table of the embodiment properly solves a plurality of harvesting problems which cannot be solved in the prior art, is suitable for the growth characteristics of the green vegetable heads, and can realize the mechanized harvesting of the green vegetable heads with high quality and high efficiency. In addition to the above embodiments, other embodiments of the present invention are also possible. All equivalent substitutions or equivalent transformations are the protection scope of the present invention.

Claims (8)

1. The utility model provides a green vegetable head multirow combine harvester, includes frame and the power transmission mechanism of arranging on crawler chassis, its characterized in that: the machine frame supports a leaf clamping lifting conveying mechanism with a low front part and a high back part, and the front end and the back end of the leaf clamping lifting conveying mechanism are respectively provided with a root cutting mechanism and a leaf cutting mechanism; the rear end of the leaf clamping lifting and conveying mechanism is hinged to an upright post of the frame, and a front extending arm of the upright post is connected with the middle part of the leaf clamping lifting and conveying mechanism; the front part of the leaf clamping lifting conveying mechanism is supported on the profiling wheel; the leaf clamping lifting conveying mechanism comprises at least two pairs of inner side clamping return ring conveying belts, each return ring conveying belt comprises a wheel frame extending along the conveying direction, the front end and the rear end of each wheel frame are respectively provided with a supporting belt wheel capable of adjusting and positioning, one end of a wheel arm is hinged in the length direction of each wheel frame at intervals, and the other end of each wheel arm is provided with a tensioning belt wheel tending to the clamping direction; the V-shaped belt is wound on the supporting belt wheel and the tensioning belt wheel, and the V-shaped belt at the supporting belt wheel and the tensioning belt wheel at the front end of the wheel frame form a guide inclined plane.
2. The multi-row combine harvester for green vegetable heads as claimed in claim 1, characterized in that: the front arm of the upright post is connected with the middle part of the leaf clamping lifting conveying mechanism through a profiling adjusting mechanism; the profiling adjusting mechanism is provided with a profiling mounting seat which is fixed at the front end of the forward extending arm and provided with a hinged joint, and a height adjusting rod which forms a moving pair with the hinged joint; the height adjusting rod is provided with spacing pin holes which are distributed at intervals, the lower end of the height adjusting rod is hinged with the upper end of the door-shaped frame, a top spring sleeved on the height adjusting rod is arranged between the door-shaped frame and the front extending arm, and the lower end of the door-shaped frame is fixedly connected with the middle part of the leaf clamping lifting conveying mechanism; the front part of the leaf clamping lifting conveying mechanism is supported on a profile wheel with adjustable height; the root cutting mechanism comprises a light circular cutter disc and a sawtooth circular cutter disc which are arranged below the guide inclined plane of the corresponding loop conveying belt in a V-shaped overlapping distribution; the vertical transmission shafts of the optical disk cutter and the sawtooth disk cutter are respectively supported on transmission shaft mounting seats fixed on corresponding wheel carriers, and the upper end of the transmission shaft is in transmission connection with a power transmission mechanism positioned at the front end of the front extension arm through a universal transmission mechanism comprising two stages of universal joints.
3. The multi-row combine harvester for green vegetable heads as claimed in claim 2, characterized in that: the leaf cutting mechanism comprises a pair of leaf gathering double rollers which are correspondingly arranged at the output end of the pair of loop conveying belts and driven by the transmission mechanism, the rotating shafts of the leaf gathering double rollers are vertical to the conveying direction, and a leaf cutting circular disc cutter is arranged at the lower end of one of the leaf gathering double rollers; a leaf discharging auger with a discharge port at one end is connected to the rear lower part of the leaf gathering double rollers; the leaf removing mechanism connected with the collecting device is mounted below the leaf cutting mechanism, the leaf removing mechanism comprises rubber rollers vertical to the rotating direction and the conveying direction, a shifting fork conveying chain moving towards an output port along the axial direction of the rubber rollers is mounted above the rubber rollers, a flat belt lifting device with conveying belt baffles distributed at intervals is received below the output port, and the collecting box is received below the lifting device.
4. The multi-row combine harvester for green vegetable heads as claimed in claim 3, characterized in that: the leaf clamping lifting conveying mechanism consists of four pairs of inner side clamping loop conveying belts, the leaf removing mechanism comprises a left front rubber pair roller and a right rear rubber pair roller, and a baffle with a herringbone section is arranged above the middle of the two pairs of rubber pair rollers; and turnover shafts with shifting forks are respectively arranged at the outer sides above the left front rubber pair roller and the right rear rubber pair roller.
5. The multi-row combine harvester for green vegetable heads as claimed in claim 4, characterized in that: a front shifting fork conveying chain which is looped back to the baffle is arranged above the left front rubber paired roller and the right rear rubber paired roller, and the front shifting fork conveying chain on the left front rubber paired roller and the rear shifting fork conveying chain on the right rear rubber paired roller respectively move towards a right front output port and a left rear output port along the axial direction of the rubber paired rollers; and a flat belt right lifting device and a flat belt left lifting device with conveying belt baffles distributed at intervals are respectively connected below the right front output port and the left rear output port.
6. The multi-row combine harvester for green vegetable heads as claimed in claim 5, characterized in that: the middle part of the front extending arm and the upper end of the rubber wheel stay bar form a horizontal moving pair through a slide rail, and the middle part of the stay bar is hinged with the extending end of an electric push rod arranged on the frame through a hinged mounting seat.
7. The multi-row combine harvester for green vegetable heads as claimed in claim 6, characterized in that: the transmission shaft mounting seat is provided with a vertical bearing seat which can position the axial position of the transmission shaft after being adjusted.
8. The multi-row combine harvester for green vegetable heads as claimed in claim 7, characterized in that: the supporting rod of the profile wheel and a profile wheel height adjusting seat arranged on one side of the leaf clamping lifting and conveying mechanism form a lockable moving pair.
CN201921962798.2U 2019-11-14 2019-11-14 Multi-row combine harvester for green vegetable heads Active CN211240845U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113207407A (en) * 2021-04-08 2021-08-06 浙江省农业科学院 Preserved szechuan pickle harvester
CN114097421A (en) * 2021-10-13 2022-03-01 江苏大学 Self-propelled shallow-digging root-cutting celery combine harvester
CN114651605A (en) * 2022-03-31 2022-06-24 金华市农业科学研究院(浙江省农业机械研究院) Vegetable head harvester with impurity removing mechanism
CN115413469A (en) * 2022-10-26 2022-12-02 鲁东大学 Support, receive, cut, field full process garlic harvester of integration

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113207407A (en) * 2021-04-08 2021-08-06 浙江省农业科学院 Preserved szechuan pickle harvester
CN114097421A (en) * 2021-10-13 2022-03-01 江苏大学 Self-propelled shallow-digging root-cutting celery combine harvester
CN114651605A (en) * 2022-03-31 2022-06-24 金华市农业科学研究院(浙江省农业机械研究院) Vegetable head harvester with impurity removing mechanism
CN115413469A (en) * 2022-10-26 2022-12-02 鲁东大学 Support, receive, cut, field full process garlic harvester of integration
CN115413469B (en) * 2022-10-26 2023-06-20 鲁东大学 Whole-process garlic harvester integrating holding, harvesting, cutting and returning to field

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