Combined harvester for green Chinese onions

Abstract

The utility model belongs to the technical field of green Chinese onion harvesters, and discloses a green Chinese onion combine harvester which comprises a green Chinese onion outlet device, a conveying device and a stacking device, the green Chinese onion outlet device comprises a green Chinese onion outlet frame, a green Chinese onion outlet plough, a soil raking harrow and a thrust wheel, the soil raking harrow is connected with a soil raking driving mechanism, and the thrust wheel is installed on the green Chinese onion outlet frame through a two-way adjusting mechanism. The conveying device comprises a leaf sorting mechanism, a linear conveying mechanism and a fan-shaped steering conveying mechanism which are arranged in sequence; the leaf arranging mechanism and the fan-shaped steering conveying mechanism are additionally arranged, the problem that green Chinese onions are prone to falling off due to the fact that a conveying device is poor in connection performance is solved, meanwhile, a single-row green Chinese onion discharging and bidirectional adjustable green Chinese onion discharging supporting structure is adopted, and the effects of being high in practicability and wide in application range are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of green onion harvesters, in particular to a green onion combine harvester. Background Art

[0002] Green onions are native to western my country, Central Asia and West Asia. They have a long history of cultivation in my country and are one of the specialty vegetables in northern my country, as well as an important economic crop in northern my country. Green onions are usually planted on ridges that protrude from the ground. The depth of the green onion body in the soil is relatively large and its flexibility is relatively poor.

[0003] In the Chinese invention patent application with patent application number 201510345918.4, a green onion harvester is proposed. The patent mainly has the following problems: first, the gaps between the onion discharging position of the onion discharging plow and the conveying front end of the conveying device, and between the conveying end of the conveying device and the stacking device are relatively large, and the connection is relatively poor, so the green onions are easy to fall, affecting the harvesting efficiency of the green onions; second, the double-discharge onion structure has relatively high requirements for the ridge width and ridge distance of the green onion planting ridges, and it is impossible to harvest green onion planting fields with large differences in ridge width and ridge distance. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a green onion combine harvester, which is additionally provided with a leaf sorting mechanism and a fan-shaped steering conveying mechanism, thereby solving the problem that green onions are easy to fall due to the poor connection of the conveying device, and at the same time adopts a single-discharge onion and a two-way adjustable onion discharge weight support structure, thereby achieving the effect of high practicality and wide application range.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A green onion combine harvester comprises a cab and a traveling crawler, a frame is arranged on one side of the cab, and a green onion discharging device, a conveying device and a stacking device are arranged on the frame in sequence along the conveying direction of green onions;

[0007] The onion discharging device comprises an onion discharging frame with a rear end hingedly mounted on the frame, a lifting driving member is commonly provided between the onion discharging frame and the frame, an onion discharging plow is installed at the front end of the onion discharging frame, a soil beating rake is provided behind the onion discharging plow, the soil beating rake is movably mounted on the onion discharging frame through a mounting assembly, a soil beating driving mechanism for driving the soil beating rake to reciprocate and swing is also installed on the onion discharging frame, a supporting roller is provided on one side of the onion discharging plow, and the supporting roller is installed on the onion discharging frame through a two-way adjustment mechanism;

[0008] The conveying device includes a straight conveying mechanism arranged upwardly and tilted, a leaf sorting mechanism for guiding and conveying onion leaves is arranged at the front conveying end of the straight conveying mechanism, a fan-shaped steering conveying mechanism is connected to the conveying end of the straight conveying mechanism, and the conveying end of the fan-shaped steering conveying mechanism is connected to the inlet of the stacking device.

[0009] The following is a further optimization of the above technical solution by the utility model:

[0010] The fan-shaped steering conveying mechanism includes two fan-shaped frames arranged side by side, and the two ends of each fan-shaped frame are respectively rotatably installed with an active conical roller and a driven conical roller, and a fan-shaped conveyor belt is commonly wound around each active conical roller and the driven conical roller, and the upper end of each fan-shaped frame is fixed with a fan-shaped guide plate, and each fan-shaped conveyor belt is rotatably installed with a plurality of guide wheels arranged in a ring, and the side wall of each guide wheel is rollingly pressed against the outer wall of the fan-shaped guide plate, and a first protective layer connected end to end is fixed on the outer wall of each fan-shaped conveyor belt.

[0011] Further optimization: the linear conveying mechanism includes two conveying frames arranged side by side, each conveying frame is fixedly installed on the frame, and the two ends of each conveying frame are respectively rotatably installed with a driving roller and a driven roller, each driving roller and an active cone roller are commonly connected to a first hydraulic motor for transmission, and a straight conveyor belt is commonly wound around each driving roller and driven roller, and a second protective layer is fixed on the outer wall of each straight conveyor belt.

[0012] Further optimization: a first auxiliary transmission roller is fixedly mounted on the lower end of each driving roller, and each first auxiliary transmission roller is arranged below the straight conveyor belt.

[0013] Further optimization: the leaf sorting mechanism includes two spiral guide vane members parallel to each other, each spiral guide vane member is extended and arranged along the inclination direction of the conveying frame, a second auxiliary conveying roller is arranged on the rear side of each spiral guide vane member, each spiral guide vane member and the second auxiliary conveying roller are rotatably installed on the corresponding conveying frame, and each spiral guide vane member and the second auxiliary conveying roller are transmission connected to the driven roller.

[0014] Further optimization: the two-way adjustment mechanism includes a support arm, a supporting wheel is rotatably installed on one end of the support arm, a slide is hingedly installed on the other end of the support arm, a lifting cylinder is hingedly connected to the support arm and the slide, a fixed frame is fixedly installed on the onion output rack, a horizontally arranged rotating screw is rotatably installed on the fixed frame, the slide is installed on the fixed frame in a threaded connection manner, and the rotating screw is transmission-connected to a second hydraulic motor.

[0015] Further optimization: the mounting assembly includes a pair of first fine-tuning connecting rods, and the two sides of the front end of the soil rake are respectively hingedly connected to the lower ends of the corresponding first fine-tuning connecting rods, and the upper end of each first fine-tuning connecting rod is hingedly mounted on the onion output rack, and the rear end of the soil rake is also hingedly mounted on the onion output rack.

[0016] Further optimization: the soil-beating driving mechanism includes a third hydraulic motor fixedly mounted on the onion output rack, the output shaft of the third hydraulic motor is transmission-connected with a rotating wheel, an eccentric shaft is fixed on the end face of the rotating wheel, and a second fine-tuning connecting rod is hingedly mounted on the eccentric shaft and the soil-beating rake.

[0017] Further optimization: the stacking device includes a stacking box fixed on the frame, the upper end inlet of the stacking box is connected with the conveying outlet of the fan-shaped steering conveying mechanism, an upper plate is horizontally slidably installed in the stacking box, a first cylinder is installed between the upper plate and the stacking box, a lower plate is arranged below the upper plate, one end of the lower plate is hingedly installed on the stacking box through a hinge shaft, and a second cylinder is installed between the hinge shaft and the stacking box.

[0018] Further optimization: a root combing mechanism is arranged below the linear conveying mechanism, and the root combing mechanism includes two combing shafts parallel to each other, each combing shaft is extended along the conveying direction of the green onions, a mounting frame is fixed at the bottom of the two conveying frames, each combing shaft is rotatably mounted on the mounting frame, each combing shaft is transmission-connected to the fourth hydraulic motor, each combing shaft is provided with combing plate teeth, and a soil guide plate inclined outward is commonly arranged below the two combing shafts, and one end of the soil guide plate is fixed on the mounting frame.

[0019] The utility model adopts the above technical solution and has the following beneficial effects:

[0020] A leaf sorting mechanism is added to the front end of the linear conveying mechanism to reduce the transmission gap between the onion discharging plow and the conveying device. While the onion discharging plow completes the onion discharging action, the leaf sorting mechanism can be used to transport the pulled onions backwards, avoiding the pulled onions from directly tilting and falling.

[0021] A fan-shaped steering conveying mechanism is added at the rear end of the linear conveying mechanism, which reduces the transmission gap between the conveying device and the stacking device, ensuring that all the green onions can enter the stacking device and be neatly stacked.

[0022] The setting of the leaf sorting mechanism and the fan-shaped steering conveying mechanism improves the movement connectivity of the onion combine harvester during the entire onion harvesting process, solves the problem of onions easily falling due to poor connectivity of the conveying device, and can neatly stack all the onions without the need to manually sort out the fallen onions.

[0023] The utility model adopts a single-row onion plow. Compared with the traditional double-row onion plow structure, the utility model is not limited by the ridge spacing and ridge width of onion planting, has stronger practicality, and can be applied to onion harvesting work in most onion planting fields, with a wide range of applications.

[0024] Moreover, the supporting wheels on one side of the onion plow can be adjusted in height to limit the depth of the onion plow into the soil, and can also be adjusted in horizontal position. They can be freely adjusted according to the actual situation of the field, avoiding the situation where the supporting wheels crush the ridges or onions, thereby ensuring that the interests of farmers are not harmed as much as possible.

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the conveying device in the embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the fan-shaped steering conveying mechanism in the embodiment of the utility model;

[0030] Figure 4 It is a cross-sectional schematic diagram of the fan-shaped steering conveying mechanism in the embodiment of the utility model;

[0031] Figure 5 This is a structural schematic diagram of the leaf sorting mechanism in the embodiment of the utility model;

[0032] Figure 6 for Figure 5 A schematic diagram of the main view;

[0033] Figure 7 This is a schematic diagram of the structure of the onion discharging device in the embodiment of the utility model;

[0034] Figure 8 This is a structural schematic diagram of the onion rack in the embodiment of the utility model;

[0035] Fig. 9 for Figure 8 Schematic diagram from top view;

[0036] Fig.10 This is a structural schematic diagram of a bidirectional adjustment mechanism in an embodiment of the utility model;

[0037] Fig.11 It is a schematic diagram of the structure of the stacking device in the embodiment of the utility model.

[0038] In the figure: 1-cab; 2-track; 3-frame; 4-onion discharging device; 41-onion discharging rack; 42-lifting drive member; 43-onion discharging plow; 44-soil harrow; 45-first fine-tuning connecting rod; 46-soil-breaking driving mechanism; 461-third hydraulic motor; 462-rotating wheel; 463-eccentric shaft; 464-second fine-tuning connecting rod; 47-supporting roller; 48-bidirectional adjustment mechanism; 481-support arm; 482-slide; 483-lifting cylinder; 484-fixed frame; 485-rotating screw; 486-second hydraulic motor; 5-conveying device; 51-linear conveying mechanism; 511-conveying rack; 512-driving roller; 513-driven roller; 514-first hydraulic motor; 515 -straight conveyor belt; 516-second protective layer; 52-leaf sorting mechanism; 521-spiral guide vane; 522-second auxiliary conveying roller; 53-fan-shaped steering conveying mechanism; 531-fan-shaped frame; 532-active cone roller; 533-driven cone roller; 534-fan-shaped conveyor belt; 535-fan-shaped guide plate; 536-guide wheel; 537-first protective layer; 54-first auxiliary conveying roller; 55-root combing mechanism; 551-combing shaft; 552-mounting frame; 553-fourth hydraulic motor; 554-combing plate teeth; 555-soil guide plate; 6-stacking device; 61-stacking box; 62-upper plate; 63-first cylinder; 64-lower plate; 65-articulated shaft; 66-second cylinder. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figure 1-Figure 11 As shown together, a green onion combine harvester includes a cab 1 and a traveling crawler 2. A frame 3 is arranged on one side of the cab 1. An onion discharging device 4, a conveying device 5 and a stacking device 6 are arranged on the frame 3 in sequence along the conveying direction of the green onions.

[0041] In this embodiment, the specific structures and driving relationship of the cab 1 and the traveling crawler tracks 2 constitute the prior art and are well known to those skilled in the art, and will not be described in detail here.

[0042] like Figure 7-10 As shown together, the onion discharging device 4 includes an onion discharging frame 41 whose rear end is hingedly mounted on the frame 3, a lifting driving member 42 is commonly provided between the onion discharging frame 41 and the frame 3, an onion discharging plow 43 is installed at the front end of the onion discharging frame 41, a soil-beating rake 44 is provided behind the onion discharging plow 43, the soil-beating rake 44 is movably mounted on the onion discharging frame 41 through a mounting assembly, and a soil-beating driving mechanism 46 for driving the soil-beating rake 44 to swing back and forth is also installed on the onion discharging frame 41, a supporting roller 47 is provided on one side of the onion discharging plow 43, and the supporting roller 47 is installed on the onion discharging frame 41 through a two-way adjustment mechanism 48.

[0043] In this embodiment, the soil-beating rake 44 is a triangular soil-beating structure composed of four rods, and each rod is fixed with soil-beating teeth. During the process of the soil-beating rake 44 continuously swinging back and forth at high speed, the soil-beating teeth can hit the roots of the green onions to achieve thorough cleaning of the soil attached to the roots of the green onions.

[0044] The structure of the soil-beating teeth in the utility model realizes cleaning by striking, so that the soil-beating teeth and the green onion roots are rarely entangled, and the situation that the green onions are pulled off due to the entanglement of the roots is avoided, thereby ensuring the integrity of the green onions.

[0045] Compared with the traditional double-row onion output structure, the utility model adopts a single-row onion output structure, so that the green onion combine harvester is not restricted by the ridge spacing and ridge width of the green onion planting field, is more practical, and can be applied to the green onion harvesting work in most green onion planting fields, with a wide range of applications.

[0046] In this embodiment, the lifting driving member 42 includes a plurality of oil cylinders, and the connection and driving relationship between the oil cylinders and the onion output rack 41 constitutes the prior art and will not be described in detail here.

[0047] like Figure 2-Figure 6 As shown together, the conveying device 5 includes a straight conveying mechanism 51 arranged to be inclined upward, a leaf sorting mechanism 52 for guiding and conveying onion leaves is arranged at the conveying front end of the straight conveying mechanism 51, a fan-shaped turning conveying mechanism 53 is connected to the conveying end of the straight conveying mechanism 51, and the conveying end of the fan-shaped turning conveying mechanism 53 is connected to the inlet of the stacking device 6.

[0048] In this embodiment, the provision of the leaf sorting mechanism 52 and the fan-shaped steering conveying mechanism 53 increases the connectivity between the conveying front end of the conveying device 5 and the onion discharging device 4, and between the conveying end and the stacking device 6, thereby solving the problem of onions easily falling due to poor connectivity, and further improving the onion harvesting efficiency of the onion combine harvester.

[0049] like Figure 2-Figure 4As shown together, the fan-shaped steering conveying mechanism 53 includes two fan-shaped frames 531 arranged side by side, and the two ends of each fan-shaped frame 531 are respectively rotatably installed with an active conical roller 532 and a driven conical roller 533, and a fan-shaped conveyor belt 534 is commonly wound around each active conical roller 532 and the driven conical roller 533. A fan-shaped guide plate 535 is fixed to the upper end of each fan-shaped frame 531, and a plurality of guide wheels 536 arranged in a ring are rotatably installed on each fan-shaped conveyor belt 534. The side wall of each guide wheel 536 is rolled and pressed against the outer wall of the fan-shaped guide plate 535, and a first protective layer 537 connected end to end is fixed to the outer wall of each fan-shaped conveyor belt 534.

[0050] In this embodiment, the provision of the fan-shaped steering conveying mechanism 53 effectively reduces the conveying gap between the end of the linear conveying mechanism 51 and the inlet of the stacking device 6, thereby ensuring the reliability of the harvester's conveying of green onions.

[0051] like Figure 1 and Figure 2 As shown in common, the linear conveying mechanism 51 includes two conveying frames 511 arranged side by side, each conveying frame 511 is fixedly installed on the frame 3, and the two ends of each conveying frame 511 are respectively rotatably installed with a driving roller 512 and a driven roller 513, and each driving roller 512 and the active cone roller 532 are commonly connected to the first hydraulic motor 514.

[0052] In this embodiment, the active tapered roller 532 may be connected to the driving roller 512 through a chain transmission structure, or may be fixedly mounted on a hydraulic motor and driven by the hydraulic motor.

[0053] A straight conveyor belt 515 is wound around each driving roller 512 and driven roller 513 , and a second protective layer 516 is fixed on the outer wall of each straight conveyor belt 515 .

[0054] In this embodiment, the provision of the first protective layer 537 and the second protective layer 516 serves the purpose of protecting the green onion leaves, avoiding the green onion leaves from being hard-connected with the conveying device 5 and being broken, thereby ensuring the integrity of the green onion.

[0055] like Figure 2 As shown, a first auxiliary conveying roller 54 is fixedly mounted on the lower end of each driving roller 512 , and each first auxiliary conveying roller 54 is disposed below the straight conveyor belt 515 .

[0056] In this embodiment, the two first auxiliary conveying rollers 54 are used to clamp the green onions that leave the fan-shaped turning conveying mechanism 53, thereby preventing the green onions from falling from the gap between the fan-shaped turning conveying mechanism 53 and the stacking device 6.

[0057] At the same time, the two rotating first auxiliary conveying rollers 54 can also convey the green onions forward, and can loosen the green onion whites after the green onions tilt to the outside, so that the green onions can smoothly and orderly enter the stacking device 6 for neat stacking.

[0058] like Figure 2 , Figure 5 and Figure 6 As shown together, the leaf sorting mechanism 52 includes two spiral guide vane members 521 parallel to each other, each spiral guide vane member 521 is extended and arranged along the inclined direction of the conveying frame 511, and a second auxiliary conveying roller 522 is arranged on the rear side of each spiral guide vane member 521. Each spiral guide vane member 521 and the second auxiliary conveying roller 522 are rotatably installed on the corresponding conveying frame 511, and each spiral guide vane member 521 and the second auxiliary conveying roller 522 are transmission connected to the driven roller 513.

[0059] In this embodiment, the arrangement of the leaf sorting mechanism 52 not only serves to connect the onion plow 43 and the linear conveying mechanism 51, but also serves to guide and convey the onion leaves.

[0060] Green onions are not always upright during their growth process, and it is inevitable that some green onion leaves will expand outward or even bend. The setting of the two spiral guide vanes 521 can straighten the green onion leaves that have expanded or bent outward, thereby preventing the green onion leaves from being broken by the linear conveying mechanism 51.

[0061] In this embodiment, the two second auxiliary conveying rollers 522 are used to clamp and convey the green onions, so that the green onions can enter the linear conveying mechanism 51 smoothly and orderly.

[0062] In this embodiment, the second auxiliary conveying roller 522 is connected to the driven roller 513 through a chain transmission structure, and the spiral guide vane 521 is connected to the second auxiliary conveying roller 522 through a bevel gear structure.

[0063] like Figure 7 and Fig.10 As shown together, the bidirectional adjustment mechanism 48 includes a support arm 481, a supporting wheel 47 is rotatably mounted on one end of the support arm 481, a slide 482 is hingedly mounted on the other end of the support arm 481, a lifting cylinder 483 is hingedly mounted on the support arm 481 and the slide 482, a fixing frame 484 is fixedly mounted on the onion output rack 41, a horizontally arranged rotating screw 485 is rotatably mounted on the fixing frame 484, the slide 482 is mounted on the rotating screw 485 in a threaded connection manner, and the rotating screw 485 is transmission-connected to a second hydraulic motor 486.

[0064] In this embodiment, a horizontally arranged guide light rod is also installed on the fixed frame 484, and the slide 482 is slidably installed on the guide light rod. A threaded sleeve is also fixed on the slide 482, and the threaded sleeve is threadedly installed on the rotating screw 485, and the threaded sleeve and the rotating screw constitute a screw nut structure.

[0065] In this embodiment, the setting of the two-way adjustment mechanism 48 enables the supporting wheel 47 to be adjusted in both the vertical and horizontal directions, which can not only limit the depth of the onion plow 43 into the soil, but also make the onion plow 43 always carry out onion harvesting at the same soil depth, thereby ensuring the onion harvesting efficiency.

[0066] The position can also be adjusted according to the actual ridge width and ridge distance of the green onion planting ridge to avoid the supporting wheels 47 pressing on the field ridge or the green onion, so that the utility model is suitable for harvesting different varieties of green onions.

[0067] like Figure 7-Figure 9 As shown together, the mounting assembly includes a pair of first fine-tuning links 45. Both sides of the front end of the soil-beating rake 44 are respectively hingedly connected to the lower ends of the corresponding first fine-tuning links 45. The upper end of each first fine-tuning link 45 is hingedly mounted on the onion output rack 41, and the rear end of the soil-beating rake 44 is also hingedly mounted on the onion output rack 41.

[0068] Among them, the soil-beating driving mechanism 46 includes a third hydraulic motor 461 fixedly installed on the onion output rack 41, and the output shaft of the third hydraulic motor 461 is transmission-connected with a rotating wheel 462, and an eccentric shaft 463 is fixed on the end face of the rotating wheel 462. The eccentric shaft 463 and the soil-beating rake 44 are jointly hingedly installed with a second fine-tuning connecting rod 464.

[0069] like Figure 1 and Fig.11 As shown together, the stacking device 6 includes a stacking box 61 fixed on the frame 3, the upper end inlet of the stacking box 61 is connected with the conveying outlet of the fan-shaped steering conveying mechanism 53, an upper plate 62 is horizontally slidably installed in the stacking box 61, a first cylinder 63 is installed between the upper plate 62 and the stacking box 61, a lower plate 64 is arranged below the upper plate 62, one end of the lower plate 64 is hingedly installed on the stacking box 61 through a hinge shaft 65, and a second cylinder 66 is installed between the hinge shaft 65 and the stacking box 61.

[0070] like Figure 1 and Figure 2As shown in common, a root combing mechanism 55 is arranged below the linear conveying mechanism 51, and the root combing mechanism 55 includes two combing shafts 551 parallel to each other, and each combing shaft 551 is extended along the conveying direction of the green onions, and a mounting frame 552 is fixed to the bottom of the two conveying frames 511, and each combing shaft 551 is rotatably mounted on the mounting frame 552, and each combing shaft 551 is transmission-connected to a fourth hydraulic motor 553, and each combing shaft 551 is provided with a plurality of combing plate teeth 554, and a soil guide plate 555 inclined outward is commonly provided below the two combing shafts 551, and one end of the soil guide plate 555 is fixed to the mounting frame 552.

[0071] The method for harvesting green onions using the utility model is as follows:

[0072] In the first step, the grower sits in the cab 1 and operates the green onion combine harvester. The grower drives the green onion combine harvester and moves it to the green onion planting ridge to be harvested.

[0073] In the second step, the horizontal position of the supporting wheel 47 is adjusted by the two-way adjustment mechanism 48 so that the supporting wheel 47 is aligned with the corresponding furrow, and then the onion rack 41 is controlled to fall by the lifting drive member 42, and the onion plow 43 is inserted into the soil.

[0074] The third step is to control the supporting wheels 47 to fall to the ground through the two-way adjustment mechanism 48 to limit the onion discharge depth of the onion discharge plow 43, and then control the soil driving mechanism 46, the leaf sorting mechanism 52, the linear conveying mechanism 51, the fan-shaped steering conveying mechanism 53 and the stacking device 6 to start.

[0075] In the fourth step, the farmer drives the green onion combine harvester forward, and the onion plow 43 continuously harvests the green onions. At the same time, the two rotating spiral guide vanes 521 can straighten the green onion leaves and transport the green onions backward, so that the green onion leaves enter the linear conveying mechanism 51 for further transportation.

[0076] In the fifth step, the linear conveying mechanism 51 clamps and conveys the green onion leaves, and the soil-beating driving mechanism 46 drives the soil-beating harrow 44 to continuously swing back and forth to clean the soil on the roots of the green onion.

[0077] In the sixth step, when the green onions are conveyed to the root combing mechanism 55, the continuously rotating combing plate teeth 554 comb the roots of the green onions, thereby preventing the roots of the green onions from being entangled and affecting the neat stacking of the green onions.

[0078] In the sixth step, the green onions at the end of the linear conveying mechanism 51 enter the fan-shaped steering conveying mechanism 53 for conveying and steering with the assistance of the first auxiliary conveying roller 54, and the fan-shaped steering conveying mechanism 53 is used to convey the green onions to the stacking box 61.

[0079] In the seventh step, the green onions fall onto the upper plate 62 one by one. When the green onions on the upper plate 62 reach a certain amount, the telescopic rod of the first cylinder 63 performs a telescopic action, and the upper plate 62 slides outward first. After the green onions fall onto the lower plate 64 below under the action of gravity, the upper plate 62 slides inward to return to its position and continues to receive the green onions.

[0080] In the eighth step, after the lower plate 64 receives the green onions, the second cylinder 66 drives the lower plate 64 to rotate and open, and the neatly stacked green onions fall to the ground, completing the harvesting of the green onions.

[0081] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A green onion combine harvester, comprising a cab (1) and a traveling crawler (2), wherein a frame (3) is provided on one side of the cab (1), characterized in that: The frame (3) is provided with an onion discharging device (4), a conveying device (5) and a stacking device (6) in sequence along the conveying direction of the onions; The onion discharging device (4) comprises an onion discharging frame (41) whose rear end is hingedly mounted on the frame (3); a lifting driving member (42) is provided between the onion discharging frame (41) and the frame (3); an onion discharging plow (43) is installed at the front end of the onion discharging frame (41); a soil beating harrow (44) is provided behind the onion discharging plow (43); the soil beating harrow (44) is movably mounted on the onion discharging frame (41) through a mounting assembly; a soil beating driving mechanism (46) for driving the soil beating harrow (44) to reciprocate is also installed on the onion discharging frame (41); a supporting roller (47) is provided on one side of the onion discharging plow (43); the supporting roller (47) is installed on the onion discharging frame (41) through a bidirectional adjustment mechanism (48); The conveying device (5) comprises a straight conveying mechanism (51) arranged to be inclined upward, a leaf sorting mechanism (52) for guiding and conveying green onion leaves being arranged at the conveying front end of the straight conveying mechanism (51), a fan-shaped steering conveying mechanism (53) being arranged in connection with the conveying end of the straight conveying mechanism (51), and a fan-shaped steering conveying mechanism (53) being arranged in connection with the inlet of the stacking device (6).

2. A green onion combine harvester according to claim 1, characterized in that: The fan-shaped steering conveying mechanism (53) comprises two fan-shaped frames (531) arranged side by side, and each fan-shaped frame (531) is rotatably mounted with a driving cone roller (532) and a driven cone roller (533) at both ends, and a fan-shaped conveying belt (534) is wound around each driving cone roller (532) and driven cone roller (533). A fan-shaped guide plate (535) is fixed to the upper end of each fan-shaped frame (531), and each fan-shaped conveying belt (534) is rotatably mounted with a plurality of guide wheels (536) arranged in an annular shape, and the side wall of each guide wheel (536) is rolled and pressed against the outer wall of the fan-shaped guide plate (535), and a first protective layer (537) connected end to end is fixed to the outer wall of each fan-shaped conveying belt (534).

3. A green onion combine harvester according to claim 2, characterized in that: The linear conveying mechanism (51) comprises two conveying frames (511) arranged side by side, each conveying frame (511) is fixedly mounted on the frame (3), and each end of each conveying frame (511) is rotatably mounted with a driving roller (512) and a driven roller (513), each driving roller (512) and an active cone roller (532) are jointly connected to a first hydraulic motor (514), each driving roller (512) and a driven roller (513) are jointly wound with a straight conveyor belt (515), and a second protective layer (516) is fixed on the outer wall of each straight conveyor belt (515).

4. The green onion combine harvester according to claim 3, characterized in that: A first auxiliary conveying roller (54) is fixedly mounted on the lower end of each driving roller (512), and each first auxiliary conveying roller (54) is arranged below the straight conveyor belt (515).

5. The green onion combine harvester according to claim 3, characterized in that: The leaf sorting mechanism (52) comprises two mutually parallel spiral guide vane members (521), each spiral guide vane member (521) is arranged to extend along the inclined direction of the conveying frame (511), a second auxiliary conveying roller (522) is arranged on the rear side of each spiral guide vane member (521), each spiral guide vane member (521) and the second auxiliary conveying roller (522) are rotatably mounted on the corresponding conveying frame (511), and each spiral guide vane member (521) and the second auxiliary conveying roller (522) are transmission-connected to the driven roller (513).

6. The green onion combine harvester according to claim 1, characterized in that: The bidirectional adjustment mechanism (48) comprises a support arm (481), a roller (47) rotatably mounted on one end of the support arm (481), a slide (482) being hingedly mounted on the other end of the support arm (481), a lifting cylinder (483) being hingedly mounted on the support arm (481) and the slide (482), a fixing frame (484) being fixedly mounted on the onion output rack (41), a horizontally arranged rotating lead screw (485) being rotatably mounted on the fixing frame (484), the slide (482) being mounted on the fixing frame (484) in a threaded manner, and a second hydraulic motor (486) being transmission-connected to the rotating lead screw (485).

7. The green onion combine harvester according to claim 1, characterized in that: The mounting assembly comprises a pair of first fine-adjustment connecting rods (45), and both sides of the front end of the soil-beating rake (44) are respectively hingedly connected to the lower end of the corresponding first fine-adjustment connecting rod (45), and the upper end of each first fine-adjustment connecting rod (45) is hingedly mounted on the onion output rack (41), and the rear end of the soil-beating rake (44) is also hingedly mounted on the onion output rack (41).

8. The green onion combine harvester according to claim 7, characterized in that: The soil beating driving mechanism (46) comprises a third hydraulic motor (461) fixedly mounted on the onion output rack (41); a rotating wheel (462) is drivingly connected to the output shaft of the third hydraulic motor (461); an eccentric shaft (463) is fixed to the end surface of the rotating wheel (462); and a second fine-tuning connecting rod (464) is hingedly mounted on the eccentric shaft (463) and the soil beating rake (44).

9. The green onion combine harvester according to claim 1, characterized in that: The stacking device (6) comprises a stacking box (61) fixed on the frame (3); an inlet at the upper end of the stacking box (61) is connected to a conveying outlet of a fan-shaped steering conveying mechanism (53); an upper plate (62) is horizontally slidably installed in the stacking box (61); a first cylinder (63) is installed between the upper plate (62) and the stacking box (61); a lower plate (64) is arranged below the upper plate (62); one end of the lower plate (64) is hingedly installed on the stacking box (61) via a hinge shaft (65); and a second cylinder (66) is installed between the hinge shaft (65) and the stacking box (61).

10. The green onion combine harvester according to claim 3, characterized in that: A root combing mechanism (55) is provided below the linear conveying mechanism (51), and the root combing mechanism (55) comprises two mutually parallel combing shafts (551), each combing shaft (551) is arranged to extend along the conveying direction of the green onions, a mounting frame (552) is fixed at the bottom of the two conveying frames (511), each combing shaft (551) is rotatably mounted on the mounting frame (552), each combing shaft (551) is transmission-connected to a fourth hydraulic motor (553), each combing shaft (551) is provided with combing plate teeth (554), and a soil guide plate (555) inclined outwardly is provided below the two combing shafts (551), and one end of the soil guide plate (555) is fixed to the mounting frame (552).

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