Vegetable crop harvester

Abstract

The utility model provides a vegetable crop harvester which comprises a frame, a driving mechanism arranged on the frame, a separation conveying mechanism, a root cutting mechanism and a gathering mechanism. The separation conveying mechanism is obliquely arranged on the frame, and a containing cavity is formed by the tail end of the separation conveying mechanism and the top of the rear end of the frame and used for receiving cut vegetable crops; the root cutting mechanism and the gathering mechanism are arranged at the starting end of the separation conveying mechanism, and the gathering mechanism comprises two stem holding devices which are distributed at intervals and used for gathering leaves of vegetable crops and guiding stems of the vegetable crops to a cutting area of the root cutting mechanism; an output shaft of the driving mechanism drives the root cutting mechanism and the separating and conveying mechanism, the root cutting mechanism is used for cutting stems of vegetable crops guided to the cutting area, the separating and conveying mechanism is used for separating the cut vegetable crops and conveying the vegetable crops to the containing cavity, and damage to vegetable leaves is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery, and particularly relates to a vegetable crop harvester. BACKGROUND

[0002] In the field of agriculture, the planting of Chinese cabbage varies significantly due to different varieties and geographical locations. Different varieties of Chinese cabbage have specific requirements for spacing and ridge height, and the size of Chinese cabbage also varies due to different geographical locations. This diversity presents many challenges for the harvesting of Chinese cabbage. First, small Chinese cabbage is more difficult to harvest than large Chinese cabbage because of its small size, making it difficult to accurately cut the roots. Second, the leaves of large Chinese cabbage are spread out, making it easy to accidentally damage the leaves when cutting the roots during harvesting. In addition, during the harvesting process, adjustments need to be made according to the route of the ridge and the planting route of the Chinese cabbage, making it difficult to center the Chinese cabbage. Moreover, in different working environments, the required ridge height and spacing are different, which requires constant adjustment, making it difficult to ensure the quality of the harvest.

[0003] Although existing Chinese cabbage harvesters have developed to some extent in the market, there are still deficiencies in harvesting quality and versatility in adapting to different terrains. Traditional Chinese cabbage harvesters have complex mechanisms and are bulky, requiring a tractor to pull them forward, which makes them less adaptable and less convenient to use. For large areas of Chinese cabbage terrain, although rapid harvesting can be achieved, there is still room for improvement in accuracy and efficiency; for small area greenhouse terrain, the adaptability is limited because the existing Chinese cabbage harvesters cannot adapt well to different regions and different varieties of Chinese cabbage.

[0004] Existing Chinese cabbage harvesters use a direct clamping method, which can cause damage to the Chinese cabbage during clamping, and also may not accurately cut the roots. In addition, existing Chinese cabbage harvesters use a differential to drive the machine to adjust the steering, which has poor flexibility and sensitivity. Because adjustments need to be made according to the route of the ridge and the planting route of the Chinese cabbage during the harvesting process, this steering method cannot meet the actual needs. Moreover, existing products use a clamping method to harvest, which can also damage the leaves. SUMMARY

[0005] To solve the above technical problems, the utility model provides a vegetable crop harvester to solve the technical problems of the above background technology.

[0006] The utility model provides the following technical scheme, a vegetable crop harvester, including frame, drive mechanism, separation conveying mechanism, root cutting mechanism and folding mechanism are set to the frame,

[0007] The separated conveying mechanism is obliquely arranged on the frame, and the end of the separated conveying mechanism forms a receiving cavity with the top of the rear end of the frame, which is used for receiving the cut vegetable crops.

[0008] The root cutting mechanism and the folding mechanism are arranged at the beginning end of the separated conveying mechanism, the folding mechanism comprises two stem supporting devices which are spaced apart, and is used for folding the leaves of the vegetable crops and guiding the stems to the cutting area of the root cutting mechanism.

[0009] The output shaft of the driving mechanism drives the root cutting mechanism and the separated conveying mechanism respectively, the root cutting mechanism is used for cutting the stems of the vegetable crops guided to the cutting area, and the separated conveying mechanism is used for separating and conveying the cut vegetable crops to the receiving cavity.

[0010] Compared with the prior art, the utility model has the advantages that the harvester is aligned with the field ridge, the driving mechanism is started to drive the separated conveying mechanism and the root cutting mechanism, the harvester is pushed to move along the field ridge direction, the two stem supporting devices fold the leaves of the vegetable crops and guide the stems to the cutting area of the root cutting mechanism, so that accurate cutting is ensured, the vegetable crops guided to the cutting area are cut by the root cutting mechanism, the cut vegetable crops are separated and conveyed to the receiving cavity by the separated conveying mechanism, and the movement direction of the harvester is adjusted by pushing the hand supporting rod on one side of the frame.

[0011] Further, the stem supporting device comprises a parallel segment, a connecting segment and a arranging segment which are sequentially connected, the parallel segments of the two stem supporting devices are parallel and spaced apart, the connecting segment is connected to the parallel segments at an angle, the arranging segments of the two stem supporting devices are inclined to the direction away from each other, so that the arranging segments of the two stem supporting devices form an included angle, and the end of the arranging segment away from the connecting segment is upwardly curved.

[0012] Further, the separated conveying mechanism is provided with a conveying groove, the parallel segment is embedded in the conveying groove, and the parallel segment is coplanar with the bottom plate of the separated conveying mechanism; and the arranging segment is connected to the separated conveying mechanism through a fixing segment.

[0013] Further, the frame comprises a mounting frame, a rear wheel arranged on the mounting frame and two hand supporting rods arranged at the rear end of the mounting frame, and the holding part of the hand supporting rod is covered with an anti-skid rubber layer.

[0014] Further, the driving mechanism comprises a fixed frame installed on the bottom of the vehicle frame and a driving source arranged on the fixed frame, wherein the driving source is a gasoline engine or an electric motor.

[0015] Further, the separating and conveying mechanism comprises a bottom plate obliquely installed on the vehicle frame through an installation table, two conveying structures arranged at intervals on the top of the bottom plate, and a transmission structure;

[0016] The driving mechanism drives the two conveying structures to work through the transmission structure, wherein the conveying structure comprises a first pulley arranged at each end of the bottom plate and a conveyor belt around the two first pulleys, a plurality of transmission plates are arranged on the conveyor belt of one of the conveying structures, and the size of the transmission plates corresponds to the interval between the two conveying structures.

[0017] Further, the transmission structure comprises a first bevel gear engaged with the output shaft of the driving mechanism, a second pulley coaxially connected with the first bevel gear, a third pulley connected with the second pulley through a synchronous belt, a transmission rod connected with the third pulley, and a second bevel gear and a third bevel gear installed on the transmission rod;

[0018] The second bevel gear and the third bevel gear are engaged with a fourth bevel gear and a fifth bevel gear respectively, the fourth bevel gear and the fifth bevel gear drive the first pulleys of the two conveying structures respectively, and the helical directions of the second bevel gear and the third bevel gear are opposite to each other, so that the two conveyor belts rotate in opposite directions.

[0019] Further, the root cutting mechanism comprises a sixth bevel gear engaged with the output shaft of the driving mechanism, a first transmission universal joint connected with the sixth bevel gear, a second transmission universal joint connected with the first transmission universal joint, a third transmission universal joint connected with the second transmission universal joint, and a rotary cutter head connected with the third transmission universal joint, and the bottom of the separating and conveying mechanism is provided with a support frame, and the support frame fixes the rotary cutter head through a bearing.

[0020] Further, the front end of the separating and conveying mechanism is connected with two front wheels through an adjusting mechanism, wherein the adjusting mechanism comprises:

[0021] A fixed rod is vertically welded to the side wall of the separating and conveying mechanism, and a plurality of fixed grooves arranged at equal intervals are arranged on the fixed rod;

[0022] A support leg is connected with the separating and conveying mechanism through a hinge at one end and connected with the front wheel at the other end;

[0023] A fixed bolt passes through a through hole in the middle of the support leg and cooperates with the fixed groove to adjust the height of the front wheel;

[0024] The axles of the two front wheels are staggered to adapt to uneven terrain. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the vegetable crop harvester in the first embodiment of this utility model.

[0026] Figure 2 This is a three-dimensional structural diagram of the vegetable crop harvester from another perspective in the first embodiment of this utility model.

[0027] Figure 3 This is a three-dimensional structural diagram of the stem support device in the first embodiment of this utility model.

[0028] Figure 4 This is a schematic diagram of the frame structure of the first embodiment of this utility model.

[0029] Figure 5 This is a schematic diagram of the root cutting mechanism according to the first embodiment of this utility model.

[0030] Figure 6 This is a three-dimensional structural diagram of the separating conveying mechanism according to the first embodiment of this utility model.

[0031] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the separating conveying mechanism according to the first embodiment of this utility model.

[0032] Figure 8 This is the first embodiment of the present utility model. Figure 7 Enlarged diagram of point A in the middle.

[0033] Figure 9 This is a three-dimensional structural diagram of the adjustment mechanism according to the first embodiment of the present invention.

[0034] Figure 10 This is a flowchart of the vegetable crop harvesting method in the second embodiment of the present invention.

[0035] Main element symbol explanation: 10, frame; 11, mounting frame; 12, rear wheel; 13, handrail; 14, front wheel; 20, driving mechanism; 21, fixing frame; 22, driving source; 30, separation conveying mechanism; 31, conveying groove; 32, bottom plate; 33, mounting table; 34, conveying structure; 341, first pulley; 342, conveyor belt; 343, transmission plate; 35, transmission structure; 351, first bevel gear; 352, second pulley; 353, synchronous belt; 354, third pulley; 355, transmission rod; 356, second bevel gear; 357, third bevel gear; 358, fourth bevel gear; 359, fifth bevel gear; 36, fixed strip; 40, root cutting mechanism; 41, sixth bevel gear; 42, first transmission universal joint; 43, second transmission universal joint; 44, third transmission universal joint; 45, rotary cutter head; 46, support frame; 50, stem holder; 51, parallel section; 52, connecting section; 53, arranging section; 54, fixing section; 60, accommodating cavity; 70, adjusting mechanism; 71, fixing rod; 72, fixing groove; 73, supporting leg; 74, fixing bolt; 75, through hole.

[0036] The following detailed description will further describe the present application with reference to the above-mentioned drawings. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The drawings show several embodiments of the present application. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] Please refer to Figures 1 to 2As shown, the vegetable crop harvester in the first embodiment of the utility model, including: frame 10, set up on the drive mechanism 20 of frame 10, separate conveying mechanism 30, root cutting mechanism 40 and folding mechanism,

[0041] The separate conveying mechanism 30 is obliquely arranged on the frame 10, and the end of the separate conveying mechanism 30 and the top of the rear end of the frame 10 form a containing cavity 60 for receiving the cut vegetable crops.

[0042] The root cutting mechanism 40 and the folding mechanism are arranged at the beginning end of the separate conveying mechanism 30, and the folding mechanism includes two stem holders 50 distributed at intervals for folding the leaves of the vegetable crops and guiding the stems to the cutting area of the root cutting mechanism 40.

[0043] The output shaft of the drive mechanism 20 drives the root cutting mechanism 40 and the separate conveying mechanism 30 respectively, the root cutting mechanism 40 is used for cutting the stems of the vegetable crops guided to the cutting area, and the separate conveying mechanism 30 is used for separating and conveying the cut vegetable crops to the containing cavity 60.

[0044] It is worth mentioning that the harvester is aligned with the field ridge, the drive mechanism 20 is started to drive the separate conveying mechanism 30 and the root cutting mechanism 40, the harvester is pushed to move along the field ridge direction, the two stem holders 50 fold the leaves of the vegetable crops and guide the stems to the cutting area of the root cutting mechanism 40 to ensure accurate cutting, the vegetable crops guided to the cutting area are cut by the root cutting mechanism 40, and the cut vegetable crops are separated and conveyed to the containing cavity 60 by the separate conveying mechanism 30, and the movement direction of the harvester is adjusted by pushing the handrail 13 on one side of the frame 10. The leaves of the vegetable crops are folded by the two stem holders 50 and guided to the cutting area of the root cutting mechanism 40, so that the harvesting quality is ensured, the walking is realized by the hand holding mode and the steering is realized by using the speed difference of the two wheels, the flexibility and sensitivity are improved, the vegetable crops are separated and conveyed by the separate conveying mechanism 30, the clamping mode is avoided, and the damage to the leaves is reduced.

[0045] Please refer to Figure 3 Specifically, the stem holder 50 includes a parallel section 51, a connecting section 52 and a arranging section 53 connected in sequence, the parallel sections 51 of the two stem holders 50 are arranged in parallel and at intervals, the connecting section 52 is connected to the parallel section 51 at an angle of 30°-60°, the arranging sections 53 of the two stem holders 50 are inclined away from each other to form an included angle of 10°-30°, and the end of the arranging section 53 away from the connecting section 52 is raised upward by 5°-15°.

[0046] More specifically, the separation conveying mechanism 30 is provided with a conveying groove 31, the parallel section 51 is embedded in the conveying groove 31, and the parallel section 51 is coplanar with the bottom plate 32 of the separation conveying mechanism 30; the arrangement section 53 is connected to the separation conveying mechanism 30 through the fixed section 54.

[0047] In actual operation, when the harvester is in operation, the stem holder 50 continuously moves close to the vegetable crops (cabbage) as the machine advances. At this time, the two arrangement sections 53 forming an included angle gradually guide the cabbages on the field ridge that are not in front of the parallel section 51 to the connecting section 52; at the connecting section 52, the root cutting mechanism 40 completes the root cutting. The cut cabbages are then introduced between the adjacent two parallel sections 51. Since the parallel section 51 is coplanar with the bottom plate 32 of the separation conveying mechanism 30, the cabbages are smoothly guided to the bottom surface (the bottom plate 32) of the separation conveying mechanism 30, and finally transported by the separation conveying mechanism 30. The hand-held design is directly operated by the farmers, realizing man-machine collaborative operation, improving flexibility, and not needing to be pulled by a tractor, thereby improving the adaptability and usability.

[0048] Please refer to Figure 4 As shown, specifically, the frame 10 includes a mounting frame 11, rear wheels 12 arranged on the mounting frame 11, and two handrails 13 arranged at the rear end of the mounting frame 11, and the grip part of the handrail 13 is covered with a non-slip rubber layer. The mounting frame 11 can be made of stainless steel.

[0049] Please refer to Figure 4 As shown, the driving mechanism 20 includes a fixed frame 21 mounted on the bottom of the frame 10 and a driving source 22 arranged on the fixed frame 21, and the driving source 22 is a gasoline engine or an electric motor. The output shaft is connected with a transmission bevel gear. The transmission bevel gear is engaged with the first bevel gear 351 of the transmission structure 35, and the first bevel gear 351 is engaged with the sixth bevel gear 41 of the root cutting mechanism 40, so that the driving source 22 drives the first bevel gear 351 and the sixth bevel gear 41 to rotate.

[0050] Please refer to Figure 5 As shown, specifically, the root cutting mechanism 40 is engaged with the sixth bevel gear 41 of the output shaft of the driving mechanism 20, the first transmission universal joint 42 connected to the sixth bevel gear 41, the second transmission universal joint 43 connected to the first transmission universal joint 42, the third transmission universal joint 44 connected to the second transmission universal joint 43, and the rotary cutter head 45 connected to the third transmission universal joint 44, and the bottom of the separation conveying mechanism 30 is provided with a support frame 46, and the support frame 46 fixes the rotary cutter head 45 through a bearing.

[0051] Please refer to Figures 6 to 8As shown, specifically, the separating and conveying mechanism 30 comprises a bottom plate 32 obliquely mounted on the frame 10 through a mounting table 33, two conveying structures 34 arranged at the top of the bottom plate 32, and a transmission structure 35;

[0052] The driving mechanism 20 drives the two conveying structures 34 to work through the transmission structure 35. The conveying structure 34 comprises first pulleys 341 arranged at both ends of the bottom plate and a conveyor belt 342 surrounding the two first pulleys 341. A plurality of transmission plates 343 are arranged on the conveyor belt 342 of one of the conveying structures 34, and the size of the transmission plates 343 corresponds to the interval between the two conveying structures 34.

[0053] In this embodiment, a fixing strip 36 is further arranged at the top of the conveying structure 34, which is used to cooperate with the bottom plate 32 to mount the conveying structure 34.

[0054] In the specific implementation process, the cut cabbages are smoothly guided to the bottom plate 32 of the separating and conveying mechanism 30. The separating and conveying mechanism 30 adopts a double-conveyor-belt 342 structure to form a vertical conveyor belt 342. The transmission plates 343 (the width is accurately matched with the interval of the conveyor belt 342) are arranged at equal intervals between the two conveyor belts 342, and independent separating and conveying cavities are formed between adjacent transmission plates 343. Through the continuous pushing of the transmission plates 343, the cabbages move along the bottom plate 32 to the accommodation cavity 60, and finally fall into the storage frame in the accommodation cavity 60.

[0055] It can be understood that through the corresponding design of the interval between the transmission plates 343 and the conveyor belt 342, each separating and conveying cavity only accommodates a single cabbage, avoiding the collision or stacking of cabbages during transportation, and reducing the damage rate of cabbage leaves. The vertical conveyor belt 342 vertically clamps the cabbages in the cavity through the structure of the double-conveyor-belt 342 (rotation speed 0.5-1.2 m / s) and the transmission plate 343, reduces the direct friction with the surface of the equipment, and further guarantees the integrity of the cabbages.

[0056] More specifically, the transmission structure 35 comprises a first bevel gear 351 engaged with the output shaft of the driving mechanism 20, a second pulley 352 coaxially connected with the first bevel gear 351, a third pulley 354 connected with the second pulley 352 through a synchronous belt 353, a transmission rod 355 connected with the third pulley 354, and a second bevel gear 356 and a third bevel gear 357 mounted on the transmission rod 355;

[0057] The second bevel gear 356 and the third bevel gear 357 mesh with the fourth bevel gear 358 and the fifth bevel gear 359 respectively, the first pulley 341 of two conveying structures 34 is driven by the fourth bevel gear 358 and the fifth bevel gear 359 respectively, and the spiral direction of the second bevel gear 356 and the third bevel gear 357 is opposite, so that the two conveying belts 342 rotate reversely.

[0058] Please refer to Figure 9 As shown, specifically, the front end of the separation conveying mechanism 30 is connected with two front wheels 14 through an adjusting mechanism 70, the adjusting mechanism 70 comprises:

[0059] A fixed rod 71 is vertically welded to the side wall of the separation conveying mechanism 30, and a plurality of equidistantly arranged fixed grooves 72 are arranged on the fixed rod 71;

[0060] A support leg 73 is connected with the separation conveying mechanism 30 at one end and connected with the front wheel 14 at the other end through a hinge;

[0061] A fixed bolt 74 passes through a through hole 75 in the middle of the support leg 73 and cooperates with the fixed groove 72 to adjust the height of the front wheel 14;

[0062] Wherein, the axes of the two front wheels 14 are staggered to adapt to uneven terrain.

[0063] It is worth noting that the adjusting mechanism 70 with adjustable height can realize harvesting operation on different terrains, different varieties of Chinese cabbage and different ridge heights of Chinese cabbage.

[0064] The present application has the following advantages:

[0065] 1. Precise cutting and adaptive harvesting:

[0066] Through the double-section design of the stem holder (parallel section guiding stem, arranging section folding leaves), combined with the rotation cutter head (rotation speed 800-1500r / min) driven by the bevel gear-universal joint transmission, the precise cutting of Chinese cabbage roots is realized, the leaf damage rate is reduced to below 5%, and the harvesting quality is improved significantly.

[0067] 2. Modular transmission and efficient harvesting:

[0068] The bevel gear set transmission system with a single power source simplifies the mechanical structure, and the maintenance efficiency is improved by 40%; the separation conveying mechanism realizes the separation and conveying of Chinese cabbage by the reverse rotation of the vertical conveying belt and the L-shaped transmission plate, avoiding the leaf extrusion damage caused by traditional clamping; combined with the adjustable support leg (height adjustment range 20-60cm), it can quickly adapt to different ridge heights and Chinese cabbage varieties, and the terrain adaptability is improved by 60%.

[0069] 3. Flexible operation and portable operation:

[0070] The hand-held design is combined with a differential steering wheel set, ±30° steering adjustment can be realized by pushing a single side handrail, the steering sensitivity is improved by 50%, and the dependence on the tractor is eliminated; the whole machine weight is reduced to below 80kg, suitable for small-scale planting scenes such as greenhouse and hilly land, the operation efficiency is 0.5 mu / hour, and the practicability is significantly enhanced.

[0071] Embodiment two

[0072] Please refer to Figure 10 , it is a kind of vegetable crop harvester harvesting method in the second embodiment of the utility model, the method comprises the following steps: step S01~step S04;

[0073] S01, the harvester is aligned with field ridge, and the driving mechanism is started to drive the separation conveying mechanism and the root cutting mechanism;

[0074] S02, the harvester is moved along the direction of field ridge, so that the two stem holders gather the leaves of vegetable crops and guide the stems to the cutting area of the root cutting mechanism;

[0075] S03, the vegetable crops guided to the cutting area are cut by the root cutting mechanism, and the cut vegetable crops are separated by the separation conveying mechanism and conveyed to the containing cavity;

[0076] S04, the movement direction of the harvester is adjusted by pushing the handrail on one side of the frame.

[0077] In summary, the vegetable crop harvester in the above embodiment of the utility model is aligned with the field ridge, the driving mechanism is started to drive the separation conveying mechanism and the root cutting mechanism;The harvester is moved along the direction of field ridge, so that the two stem holders gather the leaves of vegetable crops and guide the stems to the cutting area of the root cutting mechanism, to ensure accurate cutting;The vegetable crops guided to the cutting area are cut by the root cutting mechanism, and the cut vegetable crops are separated by the separation conveying mechanism and conveyed to the containing cavity;The movement direction of the harvester is adjusted by pushing the handrail on one side of the frame. The leaves of vegetable crops are gathered by the two stem holders and guided to the cutting area of the root cutting mechanism, so as to ensure the quality of harvest, walking by hand-held mode and realizing steering by using the speed difference of two wheels improve flexibility and sensitivity, the separation conveying mechanism separates and conveys vegetable crops, avoids the mode of clamping and collecting, and reduces the damage to leaves.

[0078] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A vegetable crop harvester, characterized in that, The utility model relates to a kind of vegetable cutting and conveying vehicle, including: Frame, drive mechanism arranged on the frame, separate conveying mechanism, root cutting mechanism and folding mechanism; The end of the separate conveying mechanism is arranged obliquely on the frame, and the top of the rear end of the frame forms a receiving cavity for receiving cut vegetable crops. The root cutting mechanism and the folding mechanism are arranged at the beginning of the separate conveying mechanism, and the folding mechanism includes two stem holders spaced apart, for folding the leaves of the vegetable crops and guiding the stems to the cutting area of the root cutting mechanism. The output shaft of the drive mechanism drives the root cutting mechanism and the separate conveying mechanism respectively, the root cutting mechanism is used for cutting the stems of the vegetable crops guided to the cutting area, and the separate conveying mechanism is used for separating and conveying the cut vegetable crops to the receiving cavity.

2. The vegetable crop harvester of claim 1, wherein, The stem holder includes a parallel segment, a connecting segment and a sorting segment connected in sequence, the parallel segments of the two stem holders are parallel and spaced apart, the connecting segment is connected to the parallel segments at an angle, and the sorting segments of the two stem holders are inclined away from each other to form an included angle, and the end of the sorting segment away from the connecting segment is upwardly curved.

3. The vegetable crop harvester of claim 2, wherein, The parallel segment is embedded in the transportation groove, and the parallel segment is coplanar with the bottom plate of the separate conveying mechanism.

4. The vegetable crop harvester of claim 1, wherein, The frame includes a mounting bracket, a rear wheel arranged on the mounting bracket, and two handrails arranged at the rear end of the mounting bracket, and the grip portion of the handrail is covered with a non-slip rubber layer.

5. The vegetable crop harvester of claim 1, wherein, The drive mechanism includes a fixed frame mounted on the bottom of the frame and a drive source arranged on the fixed frame, and the drive source is a gasoline engine or an electric motor.

6. The vegetable crop harvester of claim 1, wherein, The separate conveying mechanism includes a bottom plate obliquely mounted on the frame through a mounting table, two conveying structures spaced apart on the top of the bottom plate, and a transmission structure. The drive mechanism drives the two conveying structures through the transmission structure, and the conveying structure includes a first pulley arranged at both ends of the bottom plate and a conveyor belt around the two first pulleys, a plurality of transmission plates are arranged on the conveyor belt of one of the conveying structures, and the size of the transmission plate corresponds to the interval between the two conveying structures.

7. The vegetable crop harvester of claim 6, wherein, The transmission structure includes a first bevel gear engaged with the output shaft of the drive mechanism, a second pulley coaxially connected with the first bevel gear, a third pulley connected with the second pulley through a synchronous belt, a transmission rod connected with the third pulley, and a second bevel gear and a third bevel gear mounted on the transmission rod. The second bevel gear and the third bevel gear engage a fourth bevel gear and a fifth bevel gear respectively, the fourth bevel gear and the fifth bevel gear drive the first pulleys of the two conveying structures respectively, and the helical directions of the second bevel gear and the third bevel gear are opposite to each other, so that the two conveyor belts rotate in opposite directions.

8. The vegetable crop harvester of claim 1, wherein, The root cutting mechanism is engaged with a sixth bevel gear of the driving mechanism output shaft, connected with a first transmission universal joint, connected with a second transmission universal joint, connected with a third transmission universal joint, and connected with a rotary cutter head.

9. The vegetable crop harvester of claim 1, wherein, The front end of the partition conveying mechanism is connected with two front wheels through an adjusting mechanism, which comprises: A fixed rod is vertically welded to the side wall of the partition conveying mechanism, and a plurality of equidistant fixed grooves are arranged on the fixed rod; A support leg is connected with the partition conveying mechanism through a hinge at one end and connected with the front wheel at the other end; A fixed bolt passes through the through hole in the middle of the support leg and cooperates with the fixed groove to adjust the height of the front wheel; The axes of the two front wheels are staggered to adapt to uneven terrain.

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