Carrot Harvester

Abstract

The present invention discloses a carrot harvester, which includes a central frame. The central frame includes an upper frame plate and a lower frame plate fixedly connected together. On the left and right sides of the central frame, a left inner extractor for pushing the carrot stems and leaves in the left row backward and upward and a right inner extractor for pushing the carrot stems and leaves in the right row backward and upward are respectively installed. The left inner extractor includes a left roller and a left belt; the right inner extractor includes a right roller and a right belt. The advantages and effects are as follows: After cooperating with the left conveying device and the right conveying device, it can realize the synchronous extraction and harvesting of two rows of carrots. During the harvesting process, the carrot stems and leaves are not easily entangled and blocked, and the operation is stable, doubling the carrot harvesting efficiency.

Description

Technical Field

[0001] The present invention relates to a carrot harvester. Background Art

[0002] Carrots are a common crop and are deeply loved by people because they are rich in carotene. At present, in our country, carrot cultivation has been scaled up. When harvesting carrots, generally, a carrot harvesting plow is used to turn out the carrots with roots and leaves out of the soil along the ridges of carrot cultivation, and then manual harvesting is carried out, which greatly improves the harvesting efficiency. The traditional carrot harvesting plow is equipped with a plow blade for turning out carrots under the front section of the frame, and the front part of the frame is a power input device, generally a tractor or an ox. The traditional carrot harvesting plow has a simple structure and can only harvest one row of carrots and cannot complete the simultaneous harvesting of two rows of carrots, resulting in low harvesting efficiency. If two plow blades are installed on the traditional carrot harvesting plow to harvest two ridges of carrots, then the carrots and soil turned out in the second row will cover the carrots and soil turned out in the first row, affecting each other and making it impossible to harvest at all. In addition, for the traditional carrot harvesting plow frame, the power input device is in the front and the plow blade is in the back, so the power input device will crush some carrots, causing damage to the carrots and affecting the sale. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a carrot harvester with a reasonable structure, which can realize the synchronous soil turning and pulling of two rows of carrots, and can automatically cut and separate the roots and stems of carrots, automatically collect the stems and leaves and carrots. The whole process is automatic, fast, efficient, stable in operation, time-saving and labor-saving, and will not crush or damage the carrots.

[0004] To solve the above technical problems, this carrot harvester includes a crawler vehicle. The upper part of the crawler vehicle is hinged with a vehicle frame that extends forward and backward and can swing up and down through a horizontally arranged main vehicle shaft. A main hydraulic cylinder that can push the vehicle frame to swing up and down is installed between the crawler vehicle and the bottom of the vehicle frame; a plow frame that can swing up and down is hinged to the front part of the crawler vehicle or the front part of the vehicle frame. Two plow blades for loosening the soil corresponding to two ridges of carrots are fixedly connected to the front part of the plow frame. The plow frame is connected to the vehicle frame through a plow angle adjuster; the vehicle frame includes a feeding frame that extends forward and backward. A left conveying device and a right conveying device arranged side by side left and right are installed on the feeding frame. Both the left conveying device and the right conveying device include feeding pulleys installed at the front and rear ends of the feeding frame through vertical rotating shafts. A conveyor belt is driven and sleeved on the two feeding pulleys on each side. A feeding power device for driving the feeding pulleys to rotate is installed on the feeding frame; a ridge combiner with a wider front part and a narrower rear part is installed at the front of the feeding frame between the front sections of the left conveying device and the right conveying device. The left side of the ridge combiner is tightly pressed and matched with the right outer wall of the front section of the conveyor belt of the left conveying device and forms a left extraction channel for pulling and conveying the carrot stems and leaves of the left ridge upward and backward. The right side of the ridge combiner is tightly pressed and matched with the left outer wall of the front section of the conveyor belt of the right conveying device and forms a right extraction channel for pulling and conveying the carrot stems and leaves of the right ridge upward and backward. The right outer wall of the rear section of the left conveying device and the left outer wall of the rear section of the right conveying device behind the ridge combiner are closely attached and matched and form a total extraction channel for clamping and conveying the carrot stems and leaves upward and backward. The ridge combiner includes a central frame that extends obliquely forward with a lower front and a higher rear. The central frame includes an upper shelf plate and a lower shelf plate that are fixedly connected and arranged at intervals up and down. Left and right inner extractors for pushing the leftward carrot stems and leaves backward and upward and rightward carrot stems and leaves backward and upward are respectively installed on the left and right sides of the central frame; the left inner extractor includes a number of left rollers arranged at intervals and vertically installed between the left side of the upper shelf plate and the left side of the lower shelf plate. It also includes a circular left belt driven and sleeved on the above-mentioned left rollers. The outer wall of the left half belt of the left belt extends out of the left track of the central frame; the right inner extractor includes a number of right rollers arranged at intervals and vertically installed between the right side of the upper shelf plate and the right side of the lower shelf plate. It also includes a circular right belt driven and sleeved on the above-mentioned right rollers. The outer wall of the right half belt of the right belt extends out of the right track of the central frame; the left rollers at the rear end of the left inner extractor and the right rollers at the rear end of the right inner extractor are power rollers. Axially extending power grooves are provided on the roller walls of the power rollers. Power ribs corresponding to the power grooves are fixedly provided on the inner walls of the left belt and the right belt. A power transmission device is installed at the upper end of the power roller; a number of pressing auxiliary devices are installed on the feeding frame to tightly press and match the right outer wall of the middle and rear sections of the left conveying device and the left outer wall of the middle and rear sections of the right conveying device and to tightly press and match the conveyor belt and the left and right sides of the ridge combiner; a leaf separator that can longitudinally cut and separate the stems and leaves of two ridges of carrots from the adjacent parts is also installed above the ridge combiner at the front of the feeding frame; a root and leaf separator that can cut and separate the carrot stems and leaves from the roots is installed below the middle and rear sections of the feeding frame;A radish output device for conveying the separated carrot roots to the ground is installed on the crawler vehicle below the root and leaf separator; a stem and leaf receiver located below the rear end of the total pulling channel is installed at the rear of the crawler vehicle; a straightening guide for straightening the stems and leaves of the carrots in the left and right ridges and guiding them to the corresponding left pulling channel and right pulling channel respectively is installed at the front section of the feeding rack; a straightening guide for straightening the carrot stems and leaves from the outside to the inside and upward and guiding the advancing direction of the crawler vehicle is installed at the upper part of the front end of the feeding rack on the side where the cab is located.

[0005] As an implementation method, the whole vehicle frame includes a frame chassis hinged with the crawler vehicle through the vehicle main shaft. A middle support frame extending downward is fixedly connected to the middle of the feeding rack. The lower end of the middle support frame is hinged with the frame chassis through the vehicle main shaft or a hinge shaft arranged parallel to the vehicle main shaft. A secondary hydraulic cylinder is hinged at the front section or the rear section of the feeding rack, and the lower end of the secondary hydraulic cylinder is hinged with the corresponding frame chassis below.

[0006] As an implementation method, the plow angle adjuster includes an upper threaded column hinged with the whole vehicle frame through an upper adjustment hinge shaft, a lower threaded column hinged with the plow frame through a lower adjustment hinge shaft, and a positive and negative threaded sleeve capable of being screwed with the upper threaded column and the lower threaded column. The thread directions of the upper threaded column and the lower threaded column are set in the opposite direction. An angle adjustment handle is fixedly connected to the middle of the outer wall of the positive and negative threaded sleeve. The upper adjustment hinge shaft, the lower adjustment hinge shaft and the vehicle main shaft are arranged in parallel. The angle adjustment handle consists of four evenly arranged around the outer circumference of the positive and negative threaded sleeve. The end of each angle adjustment handle is connected with an angle adjustment rope capable of being fixedly connected with the plow frame below.

[0007] As an implementation method, the pressing auxiliary device includes a pressing auxiliary frame hinged in the middle of the feeding rack. A pressing auxiliary wheel capable of rollingly cooperating with the inner side wall of the conveyor belt is rotatably installed at the outer end of the pressing auxiliary frame close to the conveyor belt. A pressing auxiliary ring groove capable of containing the conveyor belt and limitingly cooperating with the upper and lower side edges of the conveyor belt is provided around the outer circumference of the hub of the pressing auxiliary wheel. A pressing auxiliary tension spring for elastically pressing the pressing auxiliary wheel outward against the conveyor belt is connected between the inner end of the pressing auxiliary frame and the feeding rack.

[0008] As a preferred embodiment, the root and leaf separator includes a separation rack extending forward and backward. The angle between the forward and backward extension trajectory of the separation rack and the forward and backward extension trajectory of the rear section in the feeding rack above is an acute angle less than or equal to 45 degrees. Two sets of separation mechanisms arranged side by side and symmetrically are installed in the middle and rear parts of the separation rack. Each set of separation mechanisms includes a separation support fixed on the corresponding side of the separation rack. A separation main shaft driven by a separation power device is rotatably installed between the front part of each separation support and the corresponding part of the lower separation rack. A separation main gear is installed at the lower section of the separation main shaft. A separation sub-gear corresponding to the separation main gear in the front and rear is rotatably installed at the front part of the separation rack. A separation chain ring for driving the cooperation between the separation sub-gear and the separation main gear is sleeved on the support rings of the separation sub-gear and the separation main gear. The separation chain ring is composed of a number of chain links hinged end to end. A tensioning frame is fixed on the top or bottom surface of the chain link. A tensioning slideway extending laterally outward along the annular trajectory of the separation chain ring is provided on the tensioning frame. A tensioning slide bar that can only slide longitudinally along the tensioning slideway is slidably inserted into the tensioning slideway. A tensioning limit block for preventing the tensioning slide bar from slipping off is fixed at the inner end of the tensioning slide bar close to the separation main gear. A tensioning U-shaped frame with a horizontal frame surface is fixed at the outer end of the tensioning slide bar. Tensioning cross shafts perpendicular to the tensioning slide bar are fixed at both ends of the inner wall of the tensioning U-shaped frame. A number of tensioning rollers that can rotate freely are sleeved on the tensioning cross shafts. A tensioning elastic member for elastically sliding the tensioning slide bar outward and elastically pressing the tensioning limit block against the corresponding part of the tensioning frame is also installed on the tensioning frame. Separation tensioning wheels for tightening the separation chain ring into a straight chain segment located inside and an arc-shaped chain segment located outside are also installed on both side edges of the separation rack. The tensioning rollers of the two straight chain segments are elastically clamped together under the action of the tensioning elastic member, and an automatically aligned channel extending forward and backward is formed. The automatically aligned channel and the total extraction channel are synchronously matched to keep the whole carrot in a vertical state during transportation. A radish cutting mechanism corresponding to the rear end of the automatically aligned channel is installed on the middle and rear section of the separation rack. The radish cutting mechanism includes disc-shaped cutting blades coaxially and rotatably installed on both side edges of the separation rack through a vertical knife shaft. The adjacent parts of the two cutting blades are stacked on top of each other and are arranged corresponding to the automatically aligned channel in the front and rear. A separation main sheave is installed at the upper section of the separation main shaft. A separation sub-sheave corresponding to the separation main sheave in the front and rear is rotatably installed between the rear section of the separation support and the corresponding part of the lower separation rack through a separation sub-shaft. A separation belt for driving the cooperation between the separation main sheave and the separation sub-sheave is sleeved on the separation main sheave and the separation sub-sheave. The adjacent straight line segments of the two separation belts are tightly attached to each other and form a translation cutting channel for clamping and horizontally moving the middle and lower parts of the carrot stem and leaves backward. The translation cutting channel can cover the rear section of the automatically aligned channel and the overlapping part of the two cutting blades downward.

[0009] As a preferred embodiment, the radish output device includes a primary output mechanism installed on a crawler vehicle below the root and leaf separator, the crawler vehicle is also equipped with a secondary output mechanism whose input end is located below the output end of the primary output mechanism, the rear end of the crawler vehicle is hinged with a third-level output mechanism through a third-level vertical hinge shaft, the input end of the third-level output mechanism is located below the output end of the second-level output mechanism; the primary output mechanism includes a primary output frame, the primary output frame is equipped with a primary active roller driven by a primary power output device, the primary output frame is also equipped with a primary passive roller lower than the primary active roller and arranged in parallel, and a primary output belt is provided on the primary active roller and the primary passive roller; the secondary output mechanism includes a secondary output frame, the secondary output frame is equipped with a secondary active roller driven by a secondary power output device The three-stage output mechanism comprises a three-stage output frame hinged on the crawler vehicle through a three-stage vertical hinge shaft, a three-stage lifting frame is hinged on one end of the three-stage output frame close to the crawler vehicle through a three-stage horizontal hinge shaft, and a three-stage hydraulic cylinder capable of adjusting the inclination angle of the three-stage lifting frame is installed between the three-stage lifting frame and the three-stage output frame; a three-stage active roller driven by a three-stage power output device is installed at the input end of the three-stage lifting frame, and a three-stage passive roller arranged parallel to the three-stage active roller is also installed on the three-stage lifting frame, and a three-stage output belt is transmitted on the three-stage active roller and the three-stage passive roller, and an elastic rubber strip extending laterally is arranged at a spacing ring on the outer surface of the three-stage output belt.

[0010] As a preferred embodiment, the stem and leaf receiver includes a receiving rack fixedly connected to the lower rear end of the feeding rack, a circular receiving ring fixedly connected to the bottom of the receiving rack, and a plurality of receiving hooks are mounted on the receiving ring; it also includes a receiving pocket with an upward mouth, and the mouth of the receiving pocket is ringed with a plurality of receiving hanging holes corresponding to and hooked with the receiving hooks one by one, and a receiving support frame cooperating with the bottom support of the receiving pocket is fixedly connected to the rear end of the crawler vehicle.

[0011] As a preferred embodiment, the straightening guide includes a guide shaft rotatably mounted on the left and right sides of the front end of the feeding rack and extending forward, the front section of the guide shaft is coaxially fixed with a guide cone cylinder with the tip in front, and the feeding rack is equipped with a guiding power device that is transmission-connected to the rear end of the guide shaft; the rear ends of the adjacent sides of the two guide cone cylinders are respectively arranged corresponding to the left extraction channel and the right extraction channel; a straightening spiral ring is coaxially fixed on the outer wall of the guide cone cylinder and extends spirally along the outer wall of the front end to the outer wall of the rear end; the straightening spiral ring on the left side of the tracked vehicle is arranged in a clockwise direction when viewed from its front end to the rear, and the straightening spiral ring on the right side of the tracked vehicle is arranged in a counterclockwise direction when viewed from its front end to the rear.

[0012] As a preferred embodiment, the straightening and guiding device includes a straightening and guiding frame hinged to the front section of the feeding frame on the cab side through a vertically arranged straightening and guiding shaft. A straightening and guiding adjustment plate extending horizontally towards the side is fixedly connected to the middle section of the straightening and guiding frame. An arc-shaped long hole corresponding to the straightening and guiding shaft is provided on the straightening and guiding adjustment plate. A guiding and positioning hole corresponding to the arc-shaped long hole is provided at the front end of the feeding frame. A straightening and guiding adjustment bolt for locking the straightening and guiding adjustment plate on the feeding frame is inserted into the guiding and positioning hole and the arc-shaped long hole. A straightening and guiding wheel disc driven by a straightening and guiding power device through a speed reduction mechanism and with a left-right extending rotating shaft is installed at the front section of the straightening and guiding frame. Elastic straightening rubber rods extending outwards in a scattered manner are fixedly arranged at intervals on the outer periphery of the straightening and guiding wheel disc. Straightening spacer plates are fixedly connected to the left and right sides of the straightening and guiding wheel disc on the straightening and guiding frame. The upper part of the rotation trajectory of the end of the straightening rubber rod is higher than the upper part of the straightening spacer plate. The front part of the straightening spacer plate is a circular arc plate protruding forwards or a triangular plate with a pointed part extending forwards and downwards and a wide part extending backwards. A straightening and guiding holding rod extending backwards is fixedly connected to the upper part of the rear end of the straightening spacer plate close to the carrot stems and leaves.

[0013] As an implementation method, the leaf separator includes a leaf separating frame installed between the ridging device and the front part of the feeding frame in a front-low-and-rear-high inclined manner through a leaf separating support. Leaf separating front wheels and leaf separating rear wheels are respectively rotatably installed at the front and rear ends of the leaf separating frame through corresponding left-right horizontally extending rotating shafts. A leaf separating transmission belt is sleeved on the leaf separating front wheels and the leaf separating rear wheels. A leaf separating motor capable of driving the leaf separating rear wheels and the leaf separating transmission belt to rotate is installed on the leaf separating frame. A number of leaf separating blades capable of cutting the carrot stems and leaves above the leaf separating frame from the middle and separating them left and right are fixedly arranged at intervals on the outer ring wall of the leaf separating transmission belt along the extending direction of the leaf separating transmission belt. The leaf separating support includes a leaf separating upper frame fixedly connected to the front part of the feeding frame and extending downwards, and also includes a leaf separating lower frame fixedly connected to the rear part of the ridging device and extending upwards. The lower part of the leaf separating upper frame and the upper part of the leaf separating lower frame are fixedly connected together through a leaf separating rear bolt penetrating through both of them. The rear part of the leaf separating support is tightly connected to the rear section of the leaf separating frame through a leaf separating regulator capable of adjusting the height of the rear end of the leaf separating frame. It also includes a leaf separating front frame fixedly connected to the front part of the ridging device and extending upwards. A row of vertically spaced leaf separating front holes is provided on the leaf separating front frame. The front part of the leaf separating frame is tightly matched with the corresponding leaf separating front holes through leaf separating front bolts. The leaf separating regulator includes a leaf separating adjustment arm hinged and capable of being locked on the leaf separating support through a horizontally extending left-right transverse adjustment bolt. A longitudinal extending arm strip-shaped groove is provided on the leaf separating adjustment arm. A transverse adjustment stud slidably inserted and matched with the arm strip-shaped groove is fixedly connected to the leaf separating frame. A transverse adjustment nut for locking the leaf separating adjustment arm and the leaf separating frame together is screwed at the end of the transverse adjustment stud.

[0014] In this patent, an inner gap extending forward and backward is provided between the right half of the left belt and the left half of the right belt, a unloading strip hole extending forward and backward corresponding to the inner gap is provided in the middle of the lower frame plate, an inner fixing plate extending forward and backward is fixedly connected to the top surface of the front section of the lower frame plate and the bottom surface of the middle front section of the upper frame plate, the left and right side walls of the inner fixing plate are respectively matched with the gaps of the right half of the left belt and the left half of the right belt, the rear wall of the inner fixing plate is an inclined wall, the upper end of the rear wall of the inner fixing plate is arranged correspondingly to the rear end of the unloading strip hole, and the lower end of the rear wall of the inner fixing plate is arranged close to the front end of the unloading strip hole.

[0015] In this patent, a row separator is fixedly connected to the front end of the central frame, which can separate the stems and leaves of the left and right rows of carrots to the left and right sides of the central frame respectively.

[0016] In this patent, the row divider includes a front triangular plate fixedly connected to the front end of the center frame and having a tip facing forward, the front triangular plate is provided with a front screw hole, and also includes an outer triangular plate arranged corresponding to the front triangular plate, the outer triangular plate is fixed with a V-shaped plate arranged with a tip facing forward and a mouth facing backward, the left plate of the V-shaped plate guides the stems and leaves of the left row of carrots to the left half of the left inner puller, and the right plate of the V-shaped plate guides the stems and leaves of the right row of carrots to the right half of the right inner puller, the outer triangular plate is provided with an outer through hole, and a front stud that can be tightened with the front screw hole is inserted in the outer through hole.

[0017] In this patent, a wedge-shaped frame with a pointed portion facing backward and a wide portion butting against the rear of the center frame is fixedly installed at the rear end of the center frame through a locking sleeve mechanism, and the wedge-shaped frame includes a top frame plate and a bottom frame plate fixed together and arranged at intervals in the upper and lower directions; a left rear extractor for pushing the stems and leaves of the left row of carrots backward and upward and a right rear extractor for pushing the stems and leaves of the right row of carrots backward and upward are respectively installed on the left and right sides of the wedge-shaped frame; the left rear extractor includes two left rear rollers arranged at intervals vertically installed between the left side of the top frame plate and the left side of the bottom frame plate, and also includes an annular left rear belt drivenly sleeved on the two left rear rollers, and the left half belt outer wall of the left rear belt extends out of the left track of the wedge-shaped frame; the right rear extractor includes two right rear rollers arranged at intervals vertically installed between the right side of the top frame plate and the right side of the bottom frame plate, and also includes an annular right rear belt drivenly sleeved on the two right rear rollers, and the right half belt outer wall of the left rear belt extends out of the right track of the wedge-shaped frame.

[0018] In this patent, the left and right sides of the top frame plate and the bottom frame plate are respectively fixed with anti-extrusion rods extending forward and backward along the side tracks, and the left and right sides of the rear sections of the upper frame plate and the lower frame plate are respectively fixed with conical caps with their mouths facing backward and being thin in the front and thick in the rear. The front ends of the anti-extrusion rods are correspondingly inserted and matched with the conical caps, and the rear ends of the anti-extrusion rods on the left and right sides of the top frame plate are extended and set close to each other, and the rear ends of the anti-extrusion rods on the left and right sides of the bottom frame plate are extended and set close to each other.

[0019] In this patent, a power gear is coaxially fixed to the upper end of the power roller, the left rear roller and the right rear roller at the front end of the wedge frame are matching rollers, and matching gears are coaxially fixed to the matching rollers. The power gear and the matching gear on the same side are connected through an inner chain transmission. An axially extending power groove is provided on the roller wall of the matching roller, and power ribs matching the power groove are provided on the inner walls of the left rear belt and the right rear belt; the locking sleeve mechanism includes a rectangular sleeve plate fixed to the top wall of the upper frame plate and the bottom wall of the lower frame plate and extending toward the wedge frame, and the inner side walls of the two sleeve plates are respectively slidably engaged with the top wall of the top frame plate and the bottom wall of the bottom frame plate. The plate and the bottom frame plate are provided with limit slides that slide forward and backward with the left and right sides of the sleeve plate, the sleeve plate is provided with adjustment strip holes extending forward and backward, the top frame plate and the bottom frame plate are provided with adjustment screw holes corresponding to the adjustment strip holes, the adjustment strip holes are inserted with adjustment bolts that can be tightened with the adjustment screw holes, the adjusting bolts are also fitted with positioning pads that are pressed and fitted with the sleeve plate, the positioning pads are provided with positioning pad holes that fit with the adjusting bolts, the top surface of the sleeve plate is evenly distributed with left and right extending positioning transverse grooves, and the bottom surface of the positioning pad is evenly distributed with left and right extending positioning transverse ribs corresponding to the positioning transverse grooves.

[0020] In summary, the carrot harvester adopting this structure has a reasonable structure. After cooperating with the left conveying device and the right conveying device, it can realize the synchronous pulling and harvesting of two rows of carrots. During the harvesting process, the carrot stems and leaves are not easy to be entangled or blocked, and the operation is stable, which doubles the carrot harvesting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail with reference to the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a ridge closing device;

[0024] Figure 3 for Figure 2 Schematic diagram of the coordination structure between the internal components;

[0025] Figure 4 for Figure 1 Side view of

[0026] Figure 5 It is a schematic diagram of the coordination structure between the lower shelf plate, the unloading strip hole and the inner fixing plate;

[0027] Figure 6 It is a schematic diagram of the matching structure of the power slot and the power rib;

[0028] Figure 7 It is a schematic diagram of the coordination structure of the left rear extractor and the right rear extractor;

[0029] Figure 8Schematic diagram of the mating structure of the power transmission device, mating gears, limit sliding table, and adjusting bolt;

[0030] Figure 9 Schematic diagram of the mating structure of the anti-squeezing rod and the conical cap;

[0031] Figure 10 Schematic diagram of the mating structure of the power gear, mating gears, and inner chain;

[0032] Figure 11 Schematic diagram of the mating structure of the front triangular plate, rear triangular plate, and front stud;

[0033] Figure 12 Schematic diagram of the use state of the ridging device;

[0034] Figure 13 Schematic diagram of the structure of the plow angle adjuster;

[0035] Figure 14 Schematic diagram of the mating structure of the conveyor belt, pressing auxiliary ring groove, and pressing auxiliary tension spring;

[0036] Figure 15 Schematic diagram of the structure of the root and leaf separator;

[0037] Figure 16 Schematic diagram of the mating structure of the separating sub-gear, separating chain link, and tensioning frame;

[0038] Figure 17 Schematic diagram of the structure of the radish output device;

[0039] Figure 18 Schematic diagram of the structure of the straightening guide;

[0040] Figure 19 Schematic diagram of the structure of the straightening guide;

[0041] Figure 20 Schematic diagram of the structure of the leaf separator. Detailed implementation method

[0042] Such as Figures 1-20As shown, the carrot harvester includes a crawler vehicle 1, and a vehicle frame 3 extending forward and backward and capable of swinging up and down is hingedly connected to the upper part of the crawler vehicle through a transversely arranged vehicle main shaft 2. A main hydraulic cylinder 4 that can push the vehicle frame to swing up and down is installed between the crawler vehicle and the bottom of the vehicle frame. A plow frame 5 that can swing up and down is hingedly connected to the front of the crawler vehicle or the front of the vehicle frame, and two plow blades 6 corresponding to the two ridges of carrots are fixedly connected to the front of the plow frame, and the plow frame is connected to the vehicle frame through a plow angle adjuster 7. The vehicle frame includes a feeding frame 8 extending forward and backward, and a left conveying device 9 and a right conveying device 10 arranged side by side on the left and right are installed on the feeding frame. Both the left conveying device and the right conveying device include a feeding pulley 11 installed at the front and rear ends of the feeding frame through a vertical rotating shaft, and a transmission sleeve is provided with a conveyor belt 12 on the two feeding pulleys on each side, and a feeding power device 13 that drives the feeding pulley to rotate is installed on the feeding frame. A ridge closing device 14 with a wider front and a narrower rear is installed at the front of the feeding frame, which is located between the front section of the left conveyor and the front section of the right conveyor. The left side of the ridge closing device is pressed and matched with the right outer wall of the front section of the conveyor belt of the left conveyor to form a left extraction channel 15 for pulling and conveying the stems and leaves of carrots on the left ridge upward and backward. The right side of the ridge closing device is pressed and matched with the left outer wall of the front section of the conveyor belt of the right conveyor to form a right extraction channel 16 for pulling and conveying the stems and leaves of carrots on the right ridge upward and backward. The right outer wall of the rear section of the left conveyor behind the ridge closing device and the left outer wall of the rear section of the right conveyor are tightly matched to form a total extraction channel 17 for clamping and conveying carrot stems and leaves upward and backward. A number of clamping assistants 18 are installed on the feeding frame to make the right outer wall of the middle and rear section of the left conveyor and the left outer wall of the middle and rear section of the right conveyor press and match, and to make the conveyor belt and the left and right sides of the ridge closing device press and match. The front part of the feeder rack is also equipped with a leaf divider 0-0 located above the ridge combiner and capable of longitudinally cutting and separating the stems and leaves of carrots from adjacent parts of the two ridges. A root and leaf separator 19 capable of cutting and separating the stems and leaves of carrots from the roots is installed below the middle and rear sections of the feeder rack. A carrot output device 20 for conveying the separated carrot roots to the ground is installed on the crawler vehicle below the root and leaf separator. A stem and leaf receiver 21 located below the rear end of the total extraction channel is installed at the rear of the crawler vehicle. A straightening guide 22 is installed at the front section of the feeder rack for straightening the stems and leaves of carrots on the left and right ridges and guiding them to the corresponding left extraction channel and right extraction channel respectively. A straightening guide 23 extending forward is installed at the upper front end of the feeder rack on the side where the cab is located, which can straighten the carrot stems and leaves from the outside to the inside and upwards and guide the forward direction of the crawler vehicle.

[0043] This patent mainly includes a vehicle frame, a feeding frame, a plow frame installed on a crawler vehicle, as well as corresponding straightening guides, straightening leaders, ridging devices, left conveying devices, right conveying devices, pressing assistants, leaf separators, root and leaf separators, radish output devices, and root and leaf receivers. Among them, the crawler vehicle is the main structure of this patent, and its main function is to provide an installation carrier and power for the above-mentioned components. The crawler vehicle is a mature technology and product, purchased and applied in the market, and its structure and working principle belong to well-known technologies, which will not be described in detail here. For the convenience of narration, according to living habits, the forward direction of the crawler vehicle is called the front, the reverse direction is called the back, and the two sides are called the left and the right respectively. In this patent, the vehicle frame is a frame body extending forward and backward. The vehicle frame is hinged to the upper part of the crawler vehicle through a main vehicle shaft extending horizontally left and right, so that the vehicle frame can swing up and down on the crawler vehicle. A main hydraulic cylinder connected to the bottom of the vehicle frame is installed on the crawler vehicle, so that the front part of the vehicle frame and the components on it can be swung upward, making the working components away from the ground to achieve the rapid transfer of the crawler vehicle. For the convenience of narration, the state where the vehicle frame swings upward is called the non-working state or the idle state or the transfer state. It is also possible to swing the front part of the vehicle frame downward through the main hydraulic cylinder to make the working components close to or insert into the ground to achieve soil turning or carrot pulling. For the convenience of narration, this state is called the working state or the soil turning state or the carrot pulling state. The plow frame is hinged to the front part of the crawler vehicle or the front part of the vehicle frame, and the plow frame can also swing up and down relative to the crawler vehicle. A plow blade is fixedly connected to the front part of the plow frame. The number of plow blades is two, corresponding to two ridges of carrots respectively. The main function of the plow blade is to insert into the ground and loosen the soil where the carrots are located under the push of the crawler vehicle, providing convenient conditions for pulling carrots. In this patent, the plow frame and the plow blade are arranged at the front part of the crawler vehicle, that is, the crawler vehicle pushes forward to turn the soil, and the carrots turned out are pulled up by the left extraction channel and the right extraction channel and then conveyed backward. Therefore, the crawler vehicle will not crush or damage the carrots, ensuring the integrity of the carrots. In this patent, the middle part of the plow frame is connected to the vehicle frame through a plow angle adjuster. The main function of the plow angle adjuster is to adjust the inclination angle of the plow frame relative to the crawler vehicle, that is, to adjust the inclination angle of the plow blade. In this way, during the actual harvesting of radishes, it can be adjusted according to the soil texture, humidity, hardness, and viscosity, fundamentally solving the disadvantages that traditional plow blades are easy to drill into the ground in hard and dry soil, and are not easy to plow deeply and float on the soil surface to cut carrots in wet and soft soil. In this patent, the vehicle frame includes a feeding frame extending forward and backward. In the working state, the feeding frame is inclined with the front end lower and the rear end higher. A right conveying device and a left conveying device are respectively installed on the right side and the left side of the feeding frame. The left conveying device and the right conveying device are symmetrically arranged left and right. The structures of the left conveying device and the right conveying device are the same, and both include feeding pulleys installed at the front and rear ends of the feeding frame through vertical rotating shafts. A conveyor belt is driven and sleeved on the two feeding pulleys on each side, making the two form a driving connection relationship. A feeding power device is installed on the feeding frame, and its main function is to drive the feeding pulleys to rotate, that is, to make the two conveyor belts rotate synchronously.In this patent, a ridging device is installed at the front of the feeding rack. The ridging device is located between the front sections of the left conveying device and the right conveying device. The width of the ridging device in the left-right direction is wider at the front and narrower at the rear, similar to a triangle or a wedge. The left side of the ridging device is tightly pressed and fitted with the right outer wall of the front section of the conveyor belt of the left conveying device, forming a left extraction channel therebetween. The function of the left extraction channel is to clamp and convey the stems and leaves of the carrots in the left ridge after soil turning upward and backward, so as to realize the function of extracting carrots and conveying them backward. Similarly, the right side of the ridging device is tightly pressed and fitted with the left outer wall of the front section of the conveyor belt of the right conveying device, forming a right extraction channel for extracting and conveying the stems and leaves of the carrots in the right ridge upward and backward. The working principle is similar and will not be elaborated here. In this patent, a leaf separator is also installed at the front of the feeding rack. The leaf separator is located above the ridging device. The main function of the leaf separator is to cut and separate the stems and leaves of the two ridges of carrots entering the left extraction channel and the right extraction channel. Specifically, it cuts longitudinally (i.e., in the front-rear direction) at the adjacent part of the stems and leaves of the two ridges of carrots and separates them left and right. After being cut and separated, the stems and leaves of the two ridges of carrots are independent of each other during the backward transmission process, fundamentally solving the problem of mutual entanglement, effectively avoiding the problem of snagging during the transmission of the stems and leaves, and helping the carrot to be cut more neatly and the finished product rate to be higher during the subsequent cutting and separation of the carrot stems and leaves by the root-leaf separator. In this patent, the plow frame and the plow blade are arranged at the front of the tracked vehicle, that is, the tracked vehicle pushes forward to turn the soil, and the turned carrots are pulled up by the left extraction channel and the right extraction channel and then conveyed backward. Therefore, the tracked vehicle will not crush or damage the carrots, ensuring the integrity of the carrots. The right outer wall of the rear section of the left conveying device and the left outer wall of the rear section of the right conveying device behind the ridging device are tightly fitted and form a total extraction channel extending forward and backward. The function of the total extraction channel is to convey the extracted carrots upward and backward by clamping their stems and leaves. To sum up, the left extraction channel, the right extraction channel and the total extraction channel present a Y-shaped structure in the overall structure. The left extraction channel is responsible for extracting and transporting the carrots in the left ridge, and the right extraction channel is responsible for extracting and transporting the carrots in the right ridge. The intersection of the left extraction channel and the right extraction channel is the place where the two ridges of carrots converge after being extracted, and then they are conveyed upward and backward together by the total extraction channel. In this patent, a number of pressing assistants are installed on the feeding rack. The main function of the pressing assistants is to tightly press and fit the right outer wall of the middle and rear sections of the left conveying device and the left outer wall of the middle and rear sections of the right conveying device, and also to tightly press and fit the conveyor belt and the left and right sides of the ridging device correspondingly, so as to ensure that the carrots will not slip off after clamping their stems and leaves. In this patent, a root-leaf separator is installed below the middle and rear sections of the feeding rack. The main function of the root-leaf separator is to cut the whole carrot conveyed by the total extraction channel, so that its stems and leaves are separated from the roots, thus realizing the function of automatically obtaining the finished product of the carrot roots. A radish output device is installed on the tracked vehicle below the root-leaf separator, and its main function is to convey the carrot roots after root-leaf separation downward.During actual use, a trailer is connected to the rear of the tracked vehicle. The carrot output device directly conveys the finished carrot roots into the trailer, achieving full automation. In this patent, a stem and leaf receiver is installed at the rear of the tracked vehicle. The stem and leaf receiver is located below the rear end of the total extraction channel. Its main function is to collect the stems and leaves after the carrot roots are cut off and process them uniformly. In this patent, a straightening guide is installed at the front section of the feeding rack. One of the main functions of the straightening guide is to straighten upward the stems and leaves of the carrots growing outward on the left and right ridges, so that all the stems and leaves enter the corresponding left extraction channel and right extraction channel. This can ensure the reliability of carrot extraction and provide sufficient upward pulling force when separating the carrot roots and stems. The second function is to guide the stems and leaves to the corresponding left extraction channel or right extraction channel respectively, and try to make all of them enter, ensuring the reliability of carrot extraction. In this patent, a forward-extending straightening guide is installed on the upper part of the front end of the feeding rack. One of the functions of the straightening guide is to straighten the carrot stems and leaves from the outside to the inside and upward, providing guarantee for clamping the carrot stems and leaves. The second function is that when in the working state, the straightening guide is located outside the carrots on the side where the cab is located. Therefore, it can provide a reference for the driver in the cab to move forward along the carrot ridge, that is, it has an auxiliary navigation function.

[0044] In this embodiment, the whole vehicle frame includes a frame chassis 24 hinged to the tracked vehicle through the vehicle main shaft. A middle support frame 25 extending downward is fixedly connected to the middle of the feeding rack. The lower end of the middle support frame is hinged to the frame chassis through the vehicle main shaft or a hinge shaft arranged parallel to the vehicle main shaft. A secondary hydraulic cylinder 26 is hinged to the front section or the rear section of the feeding rack. The lower end of the secondary hydraulic cylinder is hinged to the corresponding frame chassis below.

[0045] In this patent, the whole vehicle frame is mainly composed of a frame chassis, a feeding rack, and a middle support frame. The feeding rack, the middle support frame, and the frame chassis are arranged from top to bottom in sequence. The feeding rack and the middle support frame are installed on the frame chassis. Among them, the frame chassis is hinged to the tracked vehicle through the vehicle main shaft. The middle support frame is fixedly connected to the middle of the feeding rack and extends downward. The lower end of the middle support frame is hinged to the frame chassis through the vehicle main shaft or a hinge shaft arranged parallel to the vehicle main shaft. A secondary hydraulic cylinder is hinged to the front section or the rear section of the feeding rack. The lower end of the secondary hydraulic cylinder is hinged to the corresponding frame chassis below. In this patent, the hinge shafts at both ends of the secondary hydraulic cylinder are arranged parallel to the vehicle main shaft. When controlling the action of the secondary hydraulic cylinder, the feeding rack can be controlled to swing up and down independently. At this time, the distance between the plow frame and the whole vehicle frame is the largest. It is especially suitable for use when adjusting and repairing this patent, and also suitable for use when cleaning the carrot stems and leaves on the feeding rack. For the convenience of narration, this state is called the adjustment state. When controlling the action of the main hydraulic cylinder, the whole vehicle frame together with the plow frame can be controlled to swing up and down, which is suitable for use when switching between the working state and the idle state.

[0046] In this embodiment, the plow angle adjuster includes an upper threaded column 31 hinged to the vehicle frame through an upper adjusting hinge shaft 30, a lower threaded column 33 hinged to the plow frame through a lower adjusting hinge shaft 32, and a positive and negative threaded sleeve 34 that can be screwed with the upper threaded column and the lower threaded column. The thread directions of the upper threaded column and the lower threaded column are set in opposite directions. A middle part of the outer wall of the positive and negative threaded sleeve is fixedly connected with an angle adjusting handle 35. The upper adjusting hinge shaft, the lower adjusting hinge shaft and the vehicle main shaft are arranged in parallel. The angle adjusting handles are four evenly arranged around the outer periphery of the positive and negative threaded sleeve, and a tip of each angle adjusting handle is connected with an angle adjusting rope 36 that can be fixedly connected with the lower plow frame.

[0047] In this patent, the plow angle adjuster is mainly composed of an upper threaded column, an upper adjusting hinge shaft, a lower threaded column, a lower adjusting hinge shaft, a positive and negative threaded sleeve, an angle adjusting handle, and an angle adjusting rope. Among them, the upper threaded column is hinged to the front part of the vehicle frame through the upper adjusting hinge shaft. The lower threaded column is hinged to the middle part of the plow frame through the lower adjusting hinge shaft. The positive and negative threaded sleeve is screwed with the upper threaded column and the lower threaded column. In this patent, the upper adjusting hinge shaft, the lower adjusting hinge shaft and the vehicle main shaft are arranged in parallel. In this patent, the thread directions of the upper threaded column and the lower threaded column are set in opposite directions, and the internal threads at both ends of the positive and negative threaded sleeve are also set in the corresponding opposite directions. The adjusting handle is fixedly connected to the middle part of the outer wall of the positive and negative threaded sleeve. By driving the adjusting handle, the positive and negative threaded sleeve can be rotated. In this way, the upper threaded column and the lower threaded column can be simultaneously screwed out of the positive and negative threaded sleeve to increase the length of the entire plow angle adjuster, or the upper threaded column and the lower threaded column can be simultaneously screwed into the positive and negative threaded sleeve to reduce the length of the entire plow angle adjuster, so as to adjust the height of the plow blade or the inclination of the plow frame. In this patent, the angle adjusting handles are four evenly arranged around the outer periphery of the positive and negative threaded sleeve, and a tip of each angle adjusting handle is connected with an angle adjusting rope. The main function of the angle adjusting rope is to be fixedly connected with the lower plow frame after the height of the plow blade or the inclination angle of the plow frame is adjusted, so as to lock the height of the plow blade or the inclination angle of the plow frame.

[0048] In this embodiment, the pressing auxiliary device includes a pressing auxiliary frame 40 hinged in the middle on the feeding frame. A pressing auxiliary wheel 41 that can rollingly cooperate with the inner side wall of the conveyor belt is rotatably installed at an outer end of the pressing auxiliary frame close to the conveyor belt. A pressing auxiliary ring groove 42 that can hold the conveyor belt and limit the cooperation with the upper and lower edges of the conveyor belt is provided around the outer periphery of the hub of the pressing auxiliary wheel. A pressing auxiliary tension spring 43 that can elastically press the pressing auxiliary wheel against the conveyor belt outward is connected between an inner end of the pressing auxiliary frame and the feeding frame.

[0049] In this patent, the clamping auxiliary device is mainly composed of a clamping auxiliary frame, a clamping auxiliary wheel, a clamping auxiliary tension spring, etc. Among them, the middle part of the clamping auxiliary frame is hinged on the feeding frame through a hinge shaft, so that the clamping auxiliary frame can swing relative to the feeding frame around the hinge shaft. The clamping auxiliary wheel is installed at the outer end of the clamping auxiliary frame, that is, the end of the clamping auxiliary frame close to the conveyor belt. One of the main functions of the clamping auxiliary wheel is to roll with the corresponding inner side wall of the conveyor belt. In this patent, a clamping auxiliary tension spring is connected between the inner end of the clamping auxiliary frame and the feeding frame. The main function of the clamping auxiliary tension spring is to swing the outer end of the clamping auxiliary frame outward, so that the clamping auxiliary wheel installed at the outer end of the clamping auxiliary frame swings outward, and then the clamping auxiliary wheel elastically presses the corresponding conveyor belt outward, that is, the function of elastically pressing the conveyor belt. In this way, the adjacent conveyor belt side walls of the left conveyor device and the right conveyor device can be elastically pressed together, ensuring the reliability of clamping the carrot stems and leaves. In this patent, a clamping auxiliary ring groove is provided on the outer periphery of the hub of the clamping auxiliary wheel. The clamping auxiliary ring groove is wider than the width of the conveyor belt and can accommodate or contain the conveyor belt. Therefore, the groove walls on both sides of the clamping auxiliary ring groove can limit the upper and lower edges of the conveyor belt, thereby ensuring that the two conveyor belts can work stably and reliably.

[0050] In this embodiment, the root and leaf separator includes a separation rack 50 extending forward and backward. The angle between the forward and backward extension trajectory of the separation rack and the forward and backward extension trajectory of the rear section in the feeding rack above is an acute angle less than or equal to 45 degrees. Two sets of separation mechanisms arranged side by side and symmetrically are installed in the middle and rear part of the separation rack. Each set of separation mechanisms includes a separation support 51 fixedly arranged on the corresponding side of the separation rack. A separation main shaft 53 driven by a separation power device 52 is rotatably installed between the front part of each separation support and the corresponding part of the lower separation rack. A separation main gear 54 is installed on the lower section of the separation main shaft. A separation sub-gear 55 corresponding to the separation main gear in the front and back is rotatably installed at the front part of the separation rack. A separation chain ring 56 for driving the cooperation between the separation sub-gear and the separation main gear is sleeved on the support rings of the separation sub-gear and the separation main gear. The separation chain ring is composed of a number of chain links 57 hinged end to end. A tensioning frame 58 is fixedly connected to the top surface or bottom surface of the chain link. A tensioning slideway 59 extending laterally to the outside of the annular trajectory of the separation chain ring is arranged on the tensioning frame. A tensioning slide rod 60 that can only slide longitudinally along the tensioning slideway is slidably inserted into the tensioning slideway. A tensioning limit block for preventing the tensioning slide rod from slipping off is fixedly installed at the inner end of the tensioning slide rod close to the separation main gear. The outer end of the tensioning slide rod is fixedly connected with a tensioning U-shaped frame 61 with a transverse frame surface. Tensioning cross shafts 62 perpendicular to the tensioning slide rod are fixedly connected to both ends of the inner wall of the tensioning U-shaped frame. A number of tensioning rollers 63 that can rotate freely are sleeved on the tensioning cross shafts. A tensioning elastic member 64 for elastically sliding the tensioning slide rod outward and elastically pressing the tensioning limit block against the corresponding part of the tensioning frame is also installed on the tensioning frame. Separation tensioning wheels 67 that can tighten the separation chain ring into a straight chain segment 65 located inside and an arc chain segment 66 located outside are also installed on both sides of the separation rack. The tensioning rollers of the two straight chain segments are elastically clamped together under the action of the tensioning elastic member, and form an automatic alignment channel 68 extending forward and backward. The automatic alignment channel and the total extraction channel are synchronously matched to keep the whole carrot in a vertical state during transportation. A radish cutting mechanism 69 corresponding to the rear end of the automatic alignment channel is installed on the middle and rear section of the separation rack. The radish cutting mechanism includes disc-shaped cutting blades 71 rotatably installed on both sides of the separation rack around a vertical knife shaft 70. The adjacent parts of the two cutting blades are stacked up and down and are arranged corresponding to the automatic alignment channel in the front and back. A separation main sheave 72 is installed on the upper section of the separation main shaft. A separation sub-sheave 74 corresponding to the separation main sheave in the front and back is rotatably installed between the rear section of the separation support and the corresponding lower separation rack through a separation sub-shaft 73. A separation belt 75 for driving the cooperation between the separation main sheave and the separation sub-sheave is sleeved on the separation main sheave and the separation sub-sheave. The adjacent straight line segments of the two separation belts are closely attached and form a translation cutting channel 76 for clamping the middle and lower parts of the carrot stem and leaf and moving them backward horizontally. The translation cutting channel can cover the rear section of the automatic alignment channel and the overlapping part of the two cutting blades downward.

[0051] In this patent, the root and leaf separator mainly consists of a separation frame and two sets of separation mechanisms mounted on the separation frame. Among them, the separation frame is a frame body extending forward and backward. Both the front and rear ends of the separation frame are fixedly connected to the bottom of the feeding frame correspondingly. In this patent, the included angle between the forward and backward extension trajectory of the separation frame and the forward and backward extension trajectory of the middle and rear sections of the feeding frame above is an acute angle less than or equal to 45 degrees. For the convenience of description, this included angle is called the separation angle. The separation mechanisms are installed in the middle and rear parts of the separation frame, with one set on each of the left and right sides, and the two sets of separation mechanisms are symmetrically arranged. In this patent, each set of separation mechanisms includes a separation support fixedly arranged on the corresponding side of the separation frame. A vertically arranged separation main shaft is installed between the front part of each separation support and the corresponding part of the lower separation frame. A separation power device for driving the separation main shaft to rotate is installed on the feeding frame. A separation main gear is installed at the lower section of the separation main shaft, and a separation main sheave is installed at the upper section of the separation main shaft. A separation auxiliary gear is rotatably installed at the front part of the separation frame, and the separation auxiliary gear and the separation main gear are arranged corresponding to each other front and back. In this patent, a separation chain ring is sleeved on the separation auxiliary gear and the separation main gear. In this way, the three form a transmission cooperation relationship. For the convenience of description, the direction inside the separation chain ring is called the inner, and the direction outside the ring is called the outer. The separation chain ring is composed of several chain links hinged end to end. The chain links can be sleeved and matched with the "teeth" of the separation main gear and the separation auxiliary gear, so as to realize the chain drive cooperation. A tensioning frame is fixedly connected to the top surface or bottom surface of the chain link. The tensioning frame is a hollow frame body. A tensioning slideway is arranged on the tensioning frame. The tensioning slideway is horizontally arranged, and its direction is from the inner side of the circular trajectory of the separation chain ring to the outer side, that is, the same as the mouth direction of the chain link. A tensioning slide rod is slidably inserted into the tensioning slideway, and the tensioning slide rod can only slide longitudinally along the tensioning slideway. A tensioning limit block is fixedly arranged at the inner end of the tensioning slide rod, that is, the end close to the separation main gear. The main function of the tensioning limit block is to prevent the tensioning slide rod from slipping out of the tensioning slideway. A tensioning U-shaped frame is fixedly connected to the outer end of the tensioning slide rod. The mouth of the tensioning U-shaped frame is arranged outward and is set back from the separation main shaft. In this patent, the frame surface of the tensioning U-shaped frame (that is, the surface where the U-shaped trajectory is located) is horizontally arranged. A tensioning cross shaft is fixedly connected between the two ends of the tensioning U-shaped frame. Obviously, the tensioning cross shaft and the tensioning slide rod are vertically arranged in the horizontal plane. A number of tensioning rollers are sleeved on the tensioning cross shaft, and the tensioning rollers can rotate freely around the tensioning cross shaft. In this way, a circle of a number of tensioning rollers supported by a number of tensioning U-shaped frames is formed on the outer circumference of the entire separation chain ring, and all the tensioning rollers are located in the same plane, forming a "tensioning roller chain" or "tensioning roller ring". In this patent, a tensioning elastic member (such as a spring) is also installed on the tensioning frame. The main function of the tensioning elastic member is to make the tensioning slide rod slide elastically outward and make the tensioning limit block and the corresponding part of the tensioning frame elastically press and cooperate. In this way, under the elastic action of the tensioning elastic member, the "tensioning roller ring" has the "elasticity" of contracting inward and extending outward. In this patent, tensioning support wheels are installed on both sides of the separation frame. The tensioning support wheels are in pressing and rolling cooperation with the inner side of the separation chain ring.Under the tightening action of the separating and tightening wheel, the separating link forms a straight link segment on the inner side (adjacent part of the two separating mechanisms) and an arc-shaped link segment on the outer side (the arc-shaped convex is formed by the separating and tightening wheel pressing the separating link outwards). The tightening rollers of the two straight link segments are elastically clamped together under the action of the tightening elastic member, and an automatically aligned channel extending forward and backward is formed. Driven by the separating power device, the automatically aligned channel has the function of elastically clamping the article and conveying it backward. The front end of the automatically aligned channel is closely fitted with the middle part of the corresponding total extraction channel in front, that is, close but not touching. In this way, when the carrot stem and leaf are clamped by the total extraction channel and move upward and backward, when passing through the automatically aligned channel, the connecting part of the carrot root and the stem and leaf (hereinafter referred to as "root and stem") will automatically enter the automatically aligned channel. In this patent, the automatically aligned channel and the total extraction channel are synchronously matched, that is, the whole carrot remains in a vertical state during the backward transmission process. Therefore, when the total extraction channel conveys the carrot stem and leaf upward and backward, the automatically aligned channel will also synchronously convey the "root and stem" backward, that is, the whole carrot is in a vertical state. For the convenience of description, this state is called the "synchronous conveying state". In the synchronous conveying state, since the total extraction channel conveys upward and backward, while the automatically aligned channel only conveys backward, there is the aforementioned "separation angle" between the two conveying trajectories. Therefore, the total extraction channel has the function of lifting the whole carrot upward. When the top of the carrot root is lifted to the automatically aligned channel (actually the bottom of the corresponding tightening roller), since the carrot root is thicker, it will be blocked by the automatically aligned channel. In this way, the tops of all carrot roots are at the same height (the bottom edge of the automatically aligned channel), thus completing the function of automatic alignment. In this patent, a radish cutting mechanism is installed on the middle and rear section of the separating frame, and the front end of the radish cutting mechanism is correspondingly arranged with the rear end of the automatically aligned channel. The radish cutting mechanism includes two disc-shaped cutting blades installed on the left and right sides of the separating frame through a vertical knife shaft. The adjacent parts of the two cutting blades are stacked up and down to form a "shearing part". The shearing part is arranged corresponding to the automatically aligned channel in the front and rear, and the shearing part is located above the automatically aligned channel. In this way, when the "root and stem" is output from the automatically aligned channel, it is just cut by the shearing part, completing the cutting and separation of the carrot root and the stem and leaf. In this patent, a separating main sheave is installed on the upper section of the separating main shaft. A separating sub-sheave corresponding to the separating main sheave in the front and rear is rotatably installed between the rear section of the separating bracket and the corresponding separating frame below through a separating sub-shaft. A separating belt for driving and matching the two is sleeved on the separating main sheave and the separating sub-sheave. The adjacent straight line segments of the two separating belts are closely fitted and form a translation cutting channel for clamping and horizontally moving the middle and lower parts of the carrot stem and leaf backward. The translation cutting channel and the automatically aligned channel are synchronously matched to keep the whole carrot in a vertical state and convey it backward. The front part of the translation cutting channel is arranged corresponding to the rear part of the automatically aligned channel up and down, and the translation cutting channel can cover the rear section of the automatically aligned channel and the overlapping part of the two cutting blades downward.The main function of setting the translation cutting channel is that when the aforementioned "rhizome" moves from the automatic alignment channel to the cutting part, it clamps the carrot's stem and leaves again and conveys them horizontally backward to ensure that the total extraction channel will not pull the carrot upward when the cutting part cuts the rhizome, thus causing cutting errors, and plays a role in precise cutting.

[0052] In this embodiment, the radish output device includes a first-stage output mechanism 80 installed on a crawler vehicle below the root and leaf separator. A second-stage output mechanism 81 with an input end located below the output end of the first-stage output mechanism is also installed on the crawler vehicle. The rear end of the crawler vehicle is hinged with a third-stage output mechanism 83 through a third-stage vertical hinge shaft 82, and the input end of the third-stage output mechanism is located below the output end of the second-stage output mechanism. The first-stage output mechanism includes a first-stage output frame 84. A first-stage driving roller driven by a first-stage power output device is installed on the first-stage output frame. A first-stage driven roller, which is lower than the first-stage driving roller and is arranged in parallel, is also installed on the first-stage output frame. A first-stage output belt 85 is sleeved on the first-stage driving roller and the first-stage driven roller. The second-stage output mechanism includes a second-stage output frame 86. A second-stage driving roller driven by a second-stage power output device is installed on the second-stage output frame. A second-stage driven roller, which is lower than the second-stage driving roller and is arranged in parallel, is also installed on the second-stage output frame. A second-stage output belt 87 is sleeved on the second-stage driving roller and the second-stage driven roller. The third-stage output mechanism includes a third-stage output frame 88 hinged to the crawler vehicle through a third-stage vertical hinge shaft. One end of the third-stage output frame close to the crawler vehicle is hinged with a third-stage lifting frame 90 through a third-stage horizontal hinge shaft 89. A third-stage hydraulic cylinder 91 capable of adjusting the inclination angle of the third-stage lifting frame is installed between the third-stage lifting frame and the third-stage output frame. A third-stage driving roller driven by a third-stage power output device is installed at the input end of the third-stage lifting frame. A third-stage driven roller arranged in parallel with the third-stage driving roller is also installed on the third-stage lifting frame. A third-stage output belt 92 is sleeved on the third-stage driving roller and the third-stage driven roller. Elastic rubber strips 93 extending horizontally are arranged at intervals on the outer surface of the third-stage output belt.

[0053] In this patent, the radish output device mainly consists of three parts, namely: the primary output mechanism, the secondary output mechanism, and the tertiary output mechanism. Among them, the primary output mechanism is installed on the crawler vehicle below the root and leaf separator. The primary output mechanism is set here just to catch the carrots output after being cut by the root and leaf separator. In this patent, the primary output mechanism includes a primary output frame fixedly connected to the crawler vehicle. A primary driving roller driven by a primary power output device is installed on the primary output frame. A primary driven roller, which is lower than the primary driving roller and arranged parallel to it, is also installed on the primary output frame. A primary output belt is sleeved on the primary driving roller and the primary driven roller. Driven by the primary power output device, the primary output belt will convey the carrots to the secondary output mechanism. The input end of the secondary output mechanism is located below the output end of the primary output mechanism. In this patent, the secondary output mechanism includes a secondary output frame fixedly connected to the crawler vehicle. A secondary driving roller driven by a secondary power output device is installed on the secondary output frame. A secondary driven roller, which is lower than the secondary driving roller and arranged parallel to it, is also installed on the secondary output frame. A secondary output belt is sleeved on the secondary driving roller and the secondary driven roller. The output end of the secondary output mechanism is located below and above the input end of the tertiary output mechanism. In this patent, the tertiary output mechanism includes a tertiary output frame hinged to the crawler vehicle through a vertically arranged tertiary vertical hinge shaft. The tertiary output frame can be arranged to swing left and right. One end of the tertiary output frame close to the crawler vehicle is hinged with a tertiary lifting frame through a horizontally arranged tertiary horizontal hinge shaft. A tertiary hydraulic cylinder is installed between the tertiary lifting frame and the tertiary output frame. The tertiary hydraulic cylinder can adjust the inclination angle of the tertiary lifting frame, that is, the inclination angle relative to the ground. A tertiary driving roller driven by a tertiary power output device is installed at the input end of the tertiary lifting frame. A tertiary driven roller, which is arranged parallel to the tertiary driving roller, is also installed on the tertiary lifting frame. A tertiary output belt is sleeved on the tertiary driving roller and the tertiary driven roller. The tertiary output belt will send the carrots into the trailer mounted behind the crawler vehicle. When there is no trailer, the height of the output end of the tertiary lifting frame can also be lowered to directly convey the carrots to the ground, greatly enhancing the versatility of this patent. In this patent, elastic rubber strips extending horizontally are arranged at intervals on the outer surface of the tertiary output belt. The main function of the elastic rubber strips is to increase the surface friction of the tertiary output belt, so that the carrots are slowly output, avoiding damage caused by the rapid rolling of the carrots due to the too large inclination of the tertiary output belt and ensuring the integrity of the carrots.

[0054] In this embodiment, the stem and leaf receiver includes a receiving frame 001 fixedly connected to the lower part of the rear end of the feeding frame. A circular receiving ring 002 is fixedly connected to the bottom of the receiving frame. A number of receiving hooks 003 are sleeved on the receiving ring; it also includes a receiving pocket 006 with an upward opening. A number of receiving hanging holes 004 that are hooked and matched with the receiving hooks one by one are arranged around the opening of the receiving pocket. A receiving support frame 005 that supports and cooperates with the bottom of the receiving pocket is fixedly connected to the rear end of the crawler vehicle.

[0055] In this patent, the stem and leaf receiver is mainly composed of a receiving frame, a receiving ring, a receiving hook and a receiving bag. Among them, the receiving frame is fixedly connected to the lower rear end of the feeding frame, and a circular receiving ring is fixedly connected to the bottom of the receiving frame, and a plurality of receiving hooks are mounted on the receiving ring. A receiving support frame is fixedly connected to the rear end of the crawler vehicle, and the receiving bag is placed on the receiving support frame with the mouth facing upward. The mouth of the receiving bag is ringed with a plurality of receiving hanging holes, and the receiving hanging holes correspond to the receiving hooks and are hooked and matched one by one. When the receiving bag is full of carrot stems and leaves, the receiving hanging holes are separated from the receiving hooks and the receiving bag is removed, and then a new receiving bag is replaced, which is very convenient.

[0056] In this embodiment, the straightening guide includes a guide shaft 010 rotatably mounted on the left and right sides of the front end of the feeding rack and extending forward, a guide cone 011 with the tip in front is coaxially fixedly connected to the front section of the guide shaft, and a guiding power device connected to the rear end of the guide shaft is installed on the feeding rack; the rear ends of the adjacent sides of the two guide cones are respectively arranged corresponding to the left extraction channel and the right extraction channel; a straightening spiral ring 012 is coaxially fixed on the outer wall of the guide cone and extends spirally along the outer wall of the front end of the guide cone to the outer wall of the rear end; the straightening spiral ring on the left side of the tracked vehicle is arranged in a clockwise direction when viewed from its front end to the rear, and the straightening spiral ring on the right side of the tracked vehicle is arranged in a counterclockwise direction when viewed from its front end to the rear.

[0057] In this patent, the straightening guide is mainly composed of a guiding cone, a guiding power device, a straightening spiral ring, etc. Among them, the guiding cone is a conical hollow cylinder, and the guiding cone is installed at the front end of the feed rack through a guiding shaft with the tip of the guiding cone facing forward and the thick end facing backward. The guiding cone is coaxially fixed with the guiding shaft, and the guiding shaft is rotatably installed at the front end of the feed rack. There are two guiding shafts, which are respectively arranged on the left and right sides of the feed rack. A guiding power device is installed on the feed rack, and the output end of the guiding power device is connected to the rear end of the guiding shaft in a transmission manner, so that the guiding cone can be driven to rotate. In this patent, the rear ends of the adjacent sides (i.e., the inner sides) of the two guiding cones are respectively arranged corresponding to the left extraction channel and the right extraction channel, so that the inclined inner side walls of the cones can be used to gradually guide the stems and leaves of the two rows of carrots into the corresponding left extraction channel and the right extraction channel, which has the function of automatic feeding. In this patent, a straightening spiral ring is fixedly connected to the outer wall of the guide cone cylinder. The straightening spiral ring is arranged in a conical spiral along the outer wall of the guide cone cylinder from the tip of the guide cone cylinder to the thick end. The straightening spiral ring is arranged coaxially with the guide cone cylinder. In this patent, the straightening spiral ring on the left side of the tracked vehicle is arranged in a clockwise direction when viewed from its front end to the rear end. When working, the guide cone cylinder on the left side of the tracked vehicle also rotates clockwise when viewed from the front end to the rear end. In this way, the inner wall of the left guide cone cylinder will rotate from bottom to top, thereby pushing the carrot stems and leaves upward, that is, realizing the straightening function. At the same time, the clockwise rotating straightening spiral ring on the outer wall of the guide cone cylinder will further enhance the effect of straightening the carrot stems and leaves upward. In this patent, the right side straightening spiral ring of the crawler vehicle is set to rotate counterclockwise when viewed from the front end to the rear end, and the right side guide cone of the crawler vehicle also rotates counterclockwise when viewed from the front end to the rear end during operation. The function and working principle are similar to those of the left side guide cone and its straightening spiral ring, and will not be described in detail here.

[0058] In this embodiment, the straightening and guiding device includes a straightening and guiding frame 022 hinged to the front section of the feeding rack on the cab side through a vertically arranged straightening and guiding shaft 021. A straightening and guiding adjusting plate 023 extending horizontally towards the side is fixedly connected to the middle section of the straightening and guiding frame. An arc-shaped long hole 024 corresponding to the straightening and guiding shaft is provided on the straightening and guiding adjusting plate. A guiding positioning hole corresponding to the arc-shaped long hole is provided at the front end of the feeding rack. A straightening and guiding adjusting bolt 025 for locking the straightening and guiding adjusting plate on the feeding rack is inserted into the guiding positioning hole and the arc-shaped long hole. A straightening and guiding wheel disc 027 driven by a straightening and guiding power device 026 through a speed reduction mechanism and with a rotating shaft extending left and right is installed at the front section of the straightening and guiding frame. Elastic straightening rubber rods 028 extending outwards in a scattered manner are fixedly arranged at intervals on the outer periphery of the straightening and guiding wheel disc. Straightening spacer plates 029 are fixedly connected to the left and right sides of the straightening and guiding wheel disc on the straightening and guiding frame. The upper part of the rotation trajectory of the end of the straightening rubber rod is higher than the upper part of the straightening spacer plate. The front part of the straightening spacer plate is an arc plate protruding forward or a triangular plate with a pointed part extending forward and downward and a wide part extending backward. A straightening and guiding holding rod 030 extending backward is fixedly connected to the upper part of the rear end of the straightening spacer plate close to the carrot stems and leaves.

[0059] In this patent, the straightening guide mainly consists of a straightening guide frame, a straightening guide adjustment plate, a straightening guide adjustment bolt, a straightening guide wheel disc, a straightening rubber rod, a straightening spacer plate, a straightening guide retaining rod, etc. Among them, the straightening guide frame is hinged to the front section of the feeding frame through a vertically arranged straightening guide shaft, so that the straightening guide frame can swing left and right. A straightening guide adjustment plate extending horizontally to the side is fixedly connected to the middle section of the straightening guide frame, and an arc-shaped long hole corresponding to the axis of the straightening guide shaft is provided on the straightening guide adjustment plate. A guide positioning hole corresponding to the arc-shaped long hole is provided at the front end of the feeding frame, and a straightening guide adjustment bolt is inserted into the guide positioning hole and the arc-shaped long hole. The straightening guide adjustment bolt can lock the straightening guide adjustment plate on the feeding frame, that is, it plays a role in locking the straightening guide frame on the feeding frame. A straightening guide wheel disc is installed at the front section of the straightening guide frame through a shaft extending horizontally left and right, and the straightening guide wheel disc is driven by a straightening guide power device through a reduction mechanism. The outer circumference of the straightening guide wheel disc is fixedly provided with straightening rubber rods extending outward and scattering at intervals, and the straightening rubber rods are elastic. During operation, the straightening rubber rods rotate from the bottom of the straightening wheel disc to the front, then upward, and finally backward. During this process, the straightening rubber rods lift and push the toppled or turned-out carrot stems and leaves upward from the bottom and then backward, that is, push them toward the corresponding left picking channel or right picking channel. Two straightening spacer plates are fixedly connected to the straightening guide frame, and they are respectively located on the left and right sides of the straightening guide wheel disc. In this patent, the upper part of the rotation trajectory of the end of the straightening rubber rod is higher than the upper part of the straightening spacer plate. The main function of the straightening spacer plate is to support the stems and leaves when straightening the carrot stems and leaves, avoiding excessive twisting of the stems and leaves by the straightening rubber rods and causing entanglement. The front part of the straightening spacer plate is a circular arc plate protruding forward, so that the stems and leaves can gradually slide upward along the smooth edge of the arc plate. The front part of the straightening spacer plate can also be set as a triangular plate, with the tip of the triangular plate extending forward and downward and the wide part extending backward. In this way, the inclined upper edge of the triangular plate can be used to guide the stems and leaves to the straightening rubber rods in the upper middle part of the straightening guide wheel, and the straightening efficiency is higher. In this patent, a straightening guide retaining rod is fixedly connected to the upper part of the rear end of the straightening spacer plate close to the carrot stems and leaves, and the straightening guide retaining rod extends backward and downward toward the corresponding left picking channel or right picking channel. Obviously, the straightening guide retaining rod has the function of guiding the carrot stems and leaves to move toward the corresponding left picking channel or right picking channel in a straightened posture. Since the stems and leaves of carrots are fluffy on the ground and cover a large area of the ground, it is difficult to accurately judge the position of the carrot roots with the naked eye. In this patent, the straightening guide frame is located on the feeding frame on the side where the cab is located, so that it is convenient for the driver to determine whether it matches the bottom of the carrot stems and leaves on the ridge row through the rotating straightening rubber rods, that is, it can determine the forward direction and has an accurate navigation function.

[0060] In this embodiment, the leaf separator 0-0 includes a leaf separating frame 0-6 installed between the ridging device and the front part of the feeding frame in a front-low-and-rear-high inclined manner through a leaf separating bracket 0-7. The front and rear ends of the leaf separating frame are respectively rotatably installed with a front leaf separating wheel 0-8 and a rear leaf separating wheel 0-9 through corresponding left and right laterally extending rotating shafts. A leaf separating transmission belt 0-10 is sleeved on the front leaf separating wheel and the rear leaf separating wheel. A leaf separating motor 0-12 capable of driving the rear leaf separating wheel and the leaf separating transmission belt to rotate is installed on the leaf separating frame. A plurality of leaf separating blades 0-11 capable of cutting the carrot stems and leaves above the leaf separating frame from the middle and separating them left and right are fixedly arranged on the outer ring wall of the leaf separating transmission belt at intervals along the extending direction of the leaf separating transmission belt; the leaf separating bracket includes an upper leaf separating frame 0-1 fixedly connected to the front part of the feeding frame and extending downward, and also includes a lower leaf separating frame 0-2 fixedly connected to the rear part of the ridging device and extending upward. The lower part of the upper leaf separating frame is fixedly connected to the upper part of the lower leaf separating frame through a corresponding leaf separating rear bolt 0-3 penetrating through both of them. The rear part of the leaf separating bracket is tightly connected to the rear section of the leaf separating frame through a leaf separating regulator 0-13 capable of adjusting the height of the rear end of the leaf separating frame. It also includes a front leaf separating frame 0-4 fixedly connected to the front part of the ridging device and extending upward. A row of vertically spaced leaf separating front holes 0-5 are provided on the front leaf separating frame. The front part of the leaf separating frame is tightly fitted through a leaf separating front bolt 0-19 penetrating through the corresponding leaf separating front hole; the leaf separating regulator includes a leaf separating adjusting arm 0-15 fixedly connected to the leaf separating bracket. The leaf separating adjusting arm is in a circular arc shape centered on the axis of the leaf separating front bolt. A strip-shaped groove 0-16 extending longitudinally along the arc track is provided on the leaf separating adjusting arm. A horizontal adjusting stud 0-17 slidably inserted and fitted with the strip-shaped groove is fixedly connected to the leaf separating frame. A horizontal adjusting nut 0-18 for locking the leaf separating adjusting arm and the leaf separating frame together is screwed at the end of the horizontal adjusting stud.

[0061] In this patent, the leaf separator mainly consists of a leaf separation bracket, a leaf separation frame, a front leaf separation wheel, a rear leaf separation wheel, a leaf separation drive belt, leaf separation blades, and a leaf separation motor. Among them, the leaf separation frame is the main mechanism of the leaf separator, and the leaf separation bracket is the installation mechanism for installing the leaf separator onto the feeding frame. The front and rear ends of the leaf separation frame are rotatably installed with the front leaf separation wheel and the rear leaf separation wheel through corresponding left and right horizontally extending rotating shafts, and the leaf separation drive belt is sleeved on the front leaf separation wheel and the rear leaf separation wheel for transmission. The leaf separation motor is installed at the rear end of the leaf separation frame and can drive the rear leaf separation wheel to rotate. Obviously, under the driving action of the leaf separation drive belt, the leaf separation drive belt and the front leaf separation wheel also rotate synchronously. In this patent, a number of leaf separation blades are fixedly connected to the outer ring wall of the leaf separation drive belt, and the leaf separation blades are arranged at intervals along the extending direction of the leaf separation drive belt. The main function of the leaf separation blades is to form a longitudinally extending annular cutting track under the drive of the leaf separation drive belt. When the carrot stems and leaves enter this track, they will be longitudinally cut, that is, separated into left and right parts corresponding to the left extraction channel and the right extraction channel. In this patent, the leaf separation frame is arranged in a front-low-and-rear-high inclined manner relative to the feeding frame. Therefore, the aforementioned annular cutting track is also arranged in a front-low-and-rear-high inclined manner. Such a setting can ensure that the carrot stems and leaves will be gradually cut from bottom to top as the feeding frame moves backward, avoiding entanglement. In this patent, the leaf separation bracket mainly consists of an upper leaf separation bracket, a lower leaf separation bracket, a front leaf separation bracket, and a leaf separation regulator. Among them, the upper leaf separation bracket is located at the upper part of the rear half of the leaf separation bracket, and the upper leaf separation bracket is fixedly connected to the front part of the feeding frame and extends downward. The lower leaf separation bracket is located below the upper leaf separation bracket, and the lower end of the lower leaf separation bracket is fixedly connected to the rear part of the ridging unit and extends upward. Corresponding upper and lower frame holes are provided between the lower part of the upper leaf separation bracket and the upper part of the lower leaf separation bracket, and a rear leaf separation bolt for fixedly connecting the upper leaf separation bracket and the lower leaf separation bracket is inserted into the upper and lower frame holes. The front leaf separation bracket is located at the front part of the leaf separation bracket, and the front leaf separation bracket is fixedly connected to the front part of the ridging unit and extends upward. A row of vertically spaced leaf separation front holes is provided on the front leaf separation bracket, and the front part of the leaf separation frame is fixedly connected to the front leaf separation bracket through the leaf separation front bolt passing through and being locked and matched with the corresponding leaf separation front holes. In this patent, the page regulator is arranged between the rear part of the leaf separation bracket and the rear part of the leaf separation frame. One of the main functions of the leaf separation regulator is to realize the fixed connection between the leaf separation frame and the leaf separation bracket, and the second function is to be able to adjust the height of the rear end of the leaf separation frame, that is, to adjust the front-low-and-rear-high inclination angle of the leaf separation frame.

[0062] In this patent, the lobe adjuster mainly consists of a lobe adjusting support arm, a transverse adjusting stud, and a transverse adjusting nut. Among them, the extension trajectory of the lobe adjusting support arm is arc-shaped, and this arc is centered on the axis of the pre-lobe bolt. In this patent, a strip-shaped groove is provided on the lobe adjusting support arm along the longitudinal direction of the lobe adjusting support arm, that is to say, the strip-shaped groove of the support arm also extends in an arc shape. A transverse adjusting stud is fixedly connected to the lobe frame, and the transverse adjusting stud is inserted and matched with the strip-shaped groove of the support arm and can slide along the strip-shaped groove of the support arm. A transverse adjusting nut is screwed onto the end of the transverse adjusting stud. When the transverse adjusting nut is tightened, the lobe adjusting support arm can be locked with the lobe frame. Therefore, during use, after loosening the transverse adjusting nut, the lobe adjuster is unlocked from the rear end of the lobe frame, and after loosening the pre-lobe bolt, the front end of the lobe frame is unlocked from the pre-lobe frame; moving the rear end of the lobe frame up or down can drive the lobe frame to swing up and down around the pre-lobe bolt, that is, adjust the swing angle of the lobe frame; after adjusting the angle, tighten the transverse adjusting nut to lock the rear end of the lobe frame on the lobe support, and then tighten the pre-lobe bolt to lock the entire lobe frame.

[0063] In this embodiment, the ridger mainly includes a central frame 100, a left inner extractor 104 and a right inner extractor 105. Among them, the central frame is the main structure of the ridger, and its main function is to be installed and cooperate with the frame of the carrot harvester, and provide installation support for the left inner extractor and the right inner extractor. In this patent, the central frame is a long strip structure, which is inclined with the front end lower and the rear end higher. The central frame includes an upper shelf plate 101 and a lower shelf plate 102 fixedly connected together by the left inner extractor and the right inner extractor, and the upper shelf plate and the lower shelf plate are arranged at intervals up and down. The left inner extractor and the right inner extractor are respectively installed on the left and right sides of the central frame. The main function of the left inner extractor is to push the stems and leaves of the left row of carrots in the left and right rows of carrots backward and upward. The main function of the right inner extractor is to push the stems and leaves of the right row of carrots backward and upward. In this patent, the left inner extractor includes a number of left side rollers 106 arranged at intervals and vertically installed between the left side of the upper shelf plate and the left side of the lower shelf plate, and each left side roller is arranged along the left side of the central frame. The left inner extractor also includes a circular left side belt 107 sleeved on the above-mentioned left side rollers, and each left side roller is synchronously driven and cooperated through the left side belt. For the convenience of description, the left half of the circular structure of the left side belt is called the left half belt, and the right half of it is called the right half belt. In this patent, the outer wall of the left half belt of the left side belt is arranged parallel to the left side track of the central frame and extends leftward out of the track. The main function of this setting is that when the left half belt of the left side belt rotates backward, the stems and leaves of the left row of carrots will be pushed backward and upward by the extended outer wall of the left half belt and will not be rubbed or blocked by the central frame. When this patent is specifically implemented, the central frame needs to be installed obliquely with the front end lower and the rear end higher on the frame between the left conveying device and the right conveying device of the carrot harvester, and the left half belt of the left side belt is tightly fitted with the right outer wall of the conveyor belt of the left conveying device, and the right half belt of the right side belt is tightly fitted with the left outer wall of the conveyor belt of the right conveying device. At this time, as long as one of the left conveying device and the left inner extractor is driven to rotate, the other will be driven to rotate synchronously. Of course, when the left conveying device and the left inner extractor are both driven by the power output device to rotate synchronously in the same direction, the synchronous effect is the best. For the convenience of description, the synchronous moving structure composed of the right outer wall of the conveyor belt of the left conveying device and the outer wall of the left half belt of the left side belt of the left inner extractor is called the "left extraction channel", and the left extraction channel is inclined with the front end lower and the rear end higher. When the left extraction channel touches the stems and leaves of the left row of carrots, the stems and leaves will be clamped into the middle of the left extraction channel. Because at this time, the plow blade has loosened the soil around the carrots, so the left extraction channel will pull the clamped carrot stems and leaves backward and upward at the same time, that is, pull out the left row of carrots and convey them backward at the same time, completing the extraction and conveying functions of the left row of carrots. Similarly, in this patent, the right inner extractor includes a number of right side rollers 108 arranged at intervals and vertically installed between the right side of the upper shelf plate and the right side of the lower shelf plate, and each right side roller is arranged along the right side of the central frame.The right inner extractor further includes a circular right belt 109 sleeved on the above-mentioned right roller, and each right roller is synchronously driven and cooperated through the right belt. For the convenience of description, the left half of the circular structure of the right belt is called the left half belt, and the right half of it is called the right half belt. In this patent, the outer wall of the right half belt of the right belt is arranged parallel to the right side track of the center frame and extends to the right out of the track. The main function of such a setting is that when the right half belt of the right belt rotates backward, the stems and leaves of the right-traveling carrots will be pushed by the extended outer wall of the right half belt to move backward and upward without being rubbed or blocked by the center frame. For the convenience of description, the synchronous moving structure formed by the left outer wall of the conveyor belt of the right conveying device and the outer wall of the right half belt of the right belt of the right inner extractor is called the "right extraction channel", and the right extraction channel is inclined with the front end lower and the rear end higher. When the right extraction channel touches the stems and leaves of the right-traveling carrots, the stems and leaves will be clamped into the middle of the right extraction channel. At this time, since the plow blade has loosened the soil around the carrots, the right extraction channel will pull the clamped carrot stems and leaves backward and upward simultaneously, that is, pull out the right-traveling carrots from the soil and convey them backward at the same time, completing the functions of extracting and conveying the right-traveling carrots.

[0064] When this patent is actually used, due to the irregularity of the carrot stems and leaves, when the stems and leaves reach the rear ends of the left extraction channel and the right extraction channel, occasionally a small part of the stems and leaves will be brought into the inner gap 124 by the right half belt of the left belt and the left half belt of the right belt. Over time, the stems and leaves in the inner gap will become blocked. Therefore, the main function of arranging the discharge strip hole 125 in the middle of the lower frame plate is to discharge the brought-in stems and leaves to ensure the smooth operation of this patent. In this patent, an inner fixing plate 126 is fixedly connected between the top surface of the front section of the lower frame plate and the bottom surface of the middle front section of the upper frame plate, and the inner fixing plate extends forward and backward. The left and right side walls of the inner fixing plate are in clearance fit with the right half belt of the left belt and the left half belt of the right belt respectively. In this way, when the right half belt of the left belt and the left half belt of the right belt bring the stems and leaves into the inner gap, they will be blocked by the inner fixing plate and fall into the lower discharge strip hole and be discharged from the center frame. In this patent, the rear wall of the inner fixing plate is an inclined wall, the upper end of the rear wall of the inner fixing plate is vertically corresponding to the rear end of the discharge strip hole, and the lower end of the rear wall of the inner fixing plate is close to the front end of the discharge strip hole. The main function of such a setting is to gradually guide the stems and leaves entering the inner gap to the discharge strip hole by using the rear wall of the inner fixing plate that extends obliquely downward, that is, drive the stems and leaves to move toward the discharge strip hole under the forward driving force of the left belt and the right belt, and at the same time, under the backward and downward reaction force of the inclined rear wall of the inner fixing plate, make the stems and leaves slide downward along the rear wall of the inner fixing plate, that is, equivalent to "pushing" or "pressing" the stems and leaves into the discharge strip hole, ensuring the smoothness and automation of the discharge of the stems and leaves.

[0065] In this patent, the left roller at the rear end of the left inner extractor and the right roller at the rear end of the right inner extractor are set as driving rollers, that is, external power is input from these driving rollers. There are driving grooves 127 provided in the circumferential direction on the roller wall of the driving roller, and the driving grooves are axially extended. In this patent, driving ribs 128 which are fixedly arranged uniformly on the inner walls of the left belt and the right belt are in clamping fit with the driving grooves. In this way, when the driving roller is driven to rotate by external power, the driving roller will drive the left belt and the right belt to rotate synchronously. The driving grooves and the driving ribs play a role in preventing rotation slippage and ensuring synchronous rotation. All the left rollers play a role in supporting the left belt, ensuring that the left half of the left belt remains straight when being extruded by external forces and the stems and leaves. The function of the right roller is similar and will not be described here. In this patent, a power transmission device 129 is installed at the upper end of the driving roller, and the power transmission device is a bridge for transmitting external power to the driving roller. Therefore, the power transmission device can either transmit external power from two power sources one by one to each driving roller, or split one external power source into two to transmit to two driving rollers. The power transmission device is a conventional mechanical mechanism, and its working principle and structure belong to well-known technologies and will not be elaborated here.

[0066] In the natural growth environment, in order to make full use of land, the stems and leaves of carrots in two rows per ridge will grow poorly, which causes difficulties in extracting carrots in two rows per ridge. After fixedly connecting a row divider 103 to the front end of the central frame, the row divider at the front end can apply forces to the stems and leaves of the left and right rows of carrots in two rows per ridge respectively to the left and right sides of the central frame. That is, the row divider applies force to the stems and leaves of the left-row carrots to the left side, that is, applies force to the entrance of the left extraction channel, playing a role of "feeding" the left extraction channel. At the same time, the row divider applies force to the stems and leaves of the right-row carrots to the right side, that is, applies force to the entrance of the right extraction channel, playing a role of "feeding" the right extraction channel. In this way, it can not only separate the stems and leaves of carrots in two rows per ridge, but also guide the stems and leaves to the left extraction channel and the right extraction channel, making the whole extraction process connect naturally and significantly improving the degree of automation.

[0067] In this patent, the row divider mainly consists of four parts: a front triangular plate 110, an outer triangular plate 112, a V-shaped plate 113, and a front stud 114. Among them, the front triangular plate is fixedly connected to the front end of the center frame. One tip of the front triangular plate is set forward, and the two sides corresponding to this tip are respectively arranged corresponding to the left and right sides of the center frame. In actual use, the plate surface of the front triangular plate is arranged parallel to the plate surface of the upper shelf plate, and a front screw hole 111 is provided on the front triangular plate. The outer triangular plate is arranged in close contact with the front triangular plate up and down, and the outer triangular plate is fixedly connected to the V-shaped plate. The V-shaped plate includes a left plate and a right plate fixedly connected together in a V-shaped structure. Both the left plate and the right plate are perpendicular to the outer triangular plate. In this way, the left plate, the right plate, and the outer triangular plate form a funnel-shaped structure or a cover-shaped structure surrounded by three plate surfaces, and this cover-shaped structure just covers the front triangular plate. In this patent, an outer through hole is provided on the outer triangular plate, and a front stud is inserted into the outer through hole. When the front stud is tightened into the front screw hole, the V-shaped plate is fixedly installed on the front triangular plate, that is, the row divider is installed on the center frame. After the row divider is installed, the front end of the left plate is inclined leftward and inward to the left inner extractor at the rear of the center of the center frame. Therefore, the left plate of the V-shaped plate guides the leftward carrot stems and leaves to the left half belt of the left inner extractor. Similarly, the right plate of the V-shaped plate guides the rightward carrot stems and leaves to the right half belt of the right inner extractor.

[0068] In this patent, a wedge frame 115 is installed at the rear end of the center frame. The wedge frame is wedge-shaped when viewed from above, that is, the tip is installed at the rear end of the center frame through a locking sleeve mechanism with the wide part facing the rear. In this way, the center frame and the wedge frame form an integrated structure. The wedge frame includes a top frame plate 116 and a bottom frame plate 117 fixed together and arranged at intervals from top to bottom. A cavity is formed between the top frame plate and the bottom frame plate. Both the top frame plate and the bottom frame plate are wedge plates corresponding to the shape of the wedge frame. A left rear extractor 118 and a right rear extractor 119 are installed in the cavities on the left and right sides of the wedge frame, respectively. The left rear extractor and the right rear extractor are arranged symmetrically on the left and right sides. Among them, the left rear extractor includes two left rear rollers 120 vertically installed between the left side of the top frame plate and the left side of the bottom frame plate. One of the two left rear rollers is located at the front end of the wedge frame and the other is located at the rear end of the wedge frame, and they are arranged at intervals. The left rear extractor also includes an annular left rear belt 121 which is transmission-sleeved on the two left rear rollers. Through the connection of the left rear belt, the two left rear rollers form a transmission matching relationship. For the convenience of description, the left half of the left rear belt of the annular structure is called the left half belt, and the right half is called the right half belt. In this patent, the left half belt outer wall of the left rear belt exposes the left track of the wedge frame. This design can make the stems and leaves only contact with the exposed left half belt outer wall without being rubbed or hindered by the left side of the wedge frame, ensuring the smooth extraction of carrots. Similarly, the right rear extractor includes two right rear rollers 122 vertically installed between the right side of the top frame plate and the right side of the bottom frame plate, one of the two right rear rollers is located at the front end of the wedge frame and the other is located at the rear end of the wedge frame, and they are arranged at intervals. The right rear extractor also includes an annular right rear belt 123 which is transmission-sleeved on the two right rear rollers. Through the connection of the right rear belt, the two right rear rollers form a transmission matching relationship. For the convenience of description, the left half of the right rear belt of the annular structure is called the left half belt, and the right half is called the right half belt. In this patent, the outer wall of the right half belt of the right rear belt exposes the right track of the wedge frame. This design allows the stems and leaves to only contact the exposed outer wall of the right half belt without being rubbed or blocked by the right side of the wedge frame, ensuring the smooth extraction of carrots. In summary, the main function of the left rear extractor is to push the stems and leaves of the left row of carrots conveyed by the left inner extractor backward and upward under the extrusion of the left conveying device, and at the same time rely on its own wedge structure to gradually guide the stems and leaves to the right, that is, to the center line of the center frame. Similarly, the main function of the right rear extractor is to push the stems and leaves of the right row of carrots conveyed by the right inner extractor backward and upward under the extrusion of the right conveying device, and at the same time rely on its own wedge structure to gradually guide the stems and leaves to the left, that is, to the center line of the center frame. In this way, after being conveyed by the wedge frame, the two rows of carrots that have been pulled out of the soil will automatically gather into one row at the rear end of the wedge frame, forming a "row combiner" for the two rows of carrots. After being merged by the row merger, a row of unearthed carrots will be transported to the rear of the carrot harvester for further processing.

[0069] In this patent, since rollers are respectively provided on the left and right sides at the rear end of the center frame and on the left and right sides at the front end of the wedge-shaped frame, a concave portion will inevitably be formed at the connection part of the front and rear rollers due to the arc-shaped structure of the rollers. In actual use, this concave portion is likely to entangle and store carrot stems and leaves, and under the frictional pushing action of the left belt and the right belt, some stems and leaves will also be brought into the inner gap of the center frame. After anti-squeezing rods 130 are fixed on the left and right sides of the top frame plate and the bottom frame plate, since the front end of the anti-squeezing rod extends to the corresponding side at the rear of the center frame, the anti-squeezing rod has the function of isolating the stems and leaves from the aforementioned concave portion, and can effectively make the stems and leaves avoid the concave portion and be smoothly conveyed to the rear. In this patent, a conical cap 131 is respectively fixed on the left and right sides at the rear section of the upper frame plate and the lower frame plate, and the mouth of the conical cap faces backward towards the anti-squeezing rod. The front end of the anti-squeezing rod is also exactly inserted and matched with the conical cap. In this way, the front end of the anti-squeezing rod is fixed on the center frame, ensuring that it will not be pushed and bent backward by a large amount of stems and leaves due to long-term use when isolating the stems and leaves. In this patent, the conical cap is in the shape of a conical cylinder with a thin front end and a thick rear end, which can reduce the frictional force during the transmission of the stems and leaves and ensure the smooth conveyance of the stems and leaves. In this patent, the rear ends of the anti-squeezing rods on the left and right sides of the top frame plate extend backward and are close to each other, and the rear ends of the anti-squeezing rods on the left and right sides of the bottom frame plate also extend backward and are close to each other. In this way, an isolation frame can be formed at the rear end of the wedge-shaped frame to prevent the left rear roller and the right rear roller at the rear end of the wedge-shaped frame from smoothly rolling the stems and leaves into the wedge-shaped frame, so that the left and right rows of carrot stems and leaves converge to one point after passing through the side of the wedge-shaped frame and the anti-squeezing rod and continue to be conveyed backward, ensuring the reliability of the transmission of the stems and leaves.

[0070] In this patent, a power gear 132 is coaxially fixed to the upper end of the power roller, and when the power roller rotates, the power gear will rotate synchronously in the same direction. The left rear roller and the right rear roller at the front end of the wedge frame are matching rollers, and matching gears 133 are coaxially fixed to the matching rollers. The power gear and matching gear on the same side are connected by an inner chain 134, so when the power roller rotates, the corresponding matching roller rotates synchronously. In this patent, a power groove is provided on the roller wall of the matching roller, and the power groove is axially extended. Power ribs that match the power groove are provided on the inner walls of the left rear belt and the right rear belt. The power ribs can enhance the friction between the matching roller and the left rear belt and the right rear belt to avoid transmission slippage, thereby ensuring the synchronization of the transmission of this patent. In this patent, the locking sleeve mechanism is composed of three parts: a sleeve plate 135, a limit slide 136 and an adjusting bolt 139. Among them, the sleeve plate is a rectangular flat plate, and the number is two. The two sets of plates are respectively fixed to the rear section of the top wall of the upper frame plate and the rear section of the bottom wall of the lower frame plate, and are extended backward, that is, extended to the top and bottom surfaces of the wedge frame. In this way, the inner side walls of the two sets of plates are respectively slidably engaged with the top wall of the top frame plate and the bottom wall of the bottom frame plate, so that the two sets of plates and the top frame plate and the bottom frame plate of the wedge frame form a matching relationship of sliding forward and backward and being engaged up and down. The limit slide is fixed to the top frame plate and the bottom frame plate, and the limit slide is also a rectangular plate extending forward and backward. The two limit slides on the top frame plate are located on the left and right sides of the corresponding set of plates, and the two limit slides are in a left and right limit engagement relationship with the set of plates. Similarly, the two limit slides on the bottom frame plate are located on the left and right sides of the corresponding set of plates, and the two limit slides are in a left and right limit engagement relationship with the corresponding set of plates. In this way, under the action of the locking sleeve mechanism, the wedge frame and the center frame can only slide forward and backward to engage, but cannot move up and down or left and right relative to each other. For the convenience of description, the state in which the center frame and the wedge frame are clamped together is called the sliding clamping state. In this patent, the sleeve plate is provided with an adjustment bar hole 137 extending forward and backward, and the top frame plate and the bottom frame plate are provided with an adjustment screw hole 138 corresponding to the adjustment bar hole, and the adjustment bar hole is inserted with an adjustment bolt that can be tightened with the adjustment screw hole. In the sliding clamping state, when the adjustment bolt is tightened, the center frame and the wedge frame are relatively fixed together. However, this fixation is not reliable, because it relies on the friction between the adjustment bolt and the sleeve plate to ensure that it cannot slide forward and backward. In this patent, a positioning pad is also mounted on the adjustment bolt, and the positioning pad is a rectangular flat plate corresponding to the sleeve plate, and the positioning pad is provided with a positioning pad hole that is fitted with the adjustment bolt. In this patent, the top surface of the sleeve plate is evenly distributed with positioning transverse grooves extending left and right, and the bottom surface of the positioning pad is evenly distributed with positioning transverse ribs extending left and right corresponding to the positioning transverse grooves. At this time, when tightening the adjusting bolt, the adjusting bolt presses the positioning transverse rib into the positioning transverse groove, which greatly enhances the friction resistance in the front-back direction, fundamentally ensuring the reliability of the fixed connection after tightening. In this way, after the adjusting bolt is tightened, the center frame and the wedge frame are completely fixed together.In this patent, the adjusting strip hole is a strip-shaped hole extending front and back. One of the purposes of such a setting is that when tightening the adjusting bolt, the connection distance between the center frame and the wedge-shaped frame can be adjusted by adjusting the relative clamping position of the positioning cross rib and the positioning cross groove, that is, adjusting the tightness of the inner chain, ensuring the reliability during operation. The second purpose is to facilitate the installation and disassembly of the inner chain. Since the inner chain is a closed ring structure, when installing the inner chain, first insert the wedge-shaped frame onto the center frame and make the two close to each other. At this time, the distance between the power roller and the mating roller is the smallest. Then, put the inner chain on the corresponding power roller and mating roller. Then, pull the wedge-shaped frame backward to expand the distance between the wedge-shaped frame and the center frame so that the inner chain is completely tightened on the power roller and the mating roller. Finally, tighten the adjusting bolt, and various mating relationships of this patent are determined, reaching the best mating state.

Claims

1. A carrot harvester, characterized in that: It includes a crawler vehicle (1). The upper part of the crawler vehicle is hinged with a vehicle frame (3) that extends forward and backward and can swing up and down through a horizontally arranged vehicle main shaft (2). A main hydraulic cylinder (4) that can push the vehicle frame to swing up and down is installed between the crawler vehicle and the bottom of the vehicle frame; a plow frame (5) that can swing up and down is hinged to the front part of the crawler vehicle or the front part of the vehicle frame. Two plow blades (6) for loosening the soil corresponding to two ridges of carrots are fixedly connected to the front part of the plow frame. The plow frame is connected to the vehicle frame through a plow angle adjuster (7); the vehicle frame includes a feeding frame (8) that extends forward and backward. A left conveying device (9) and a right conveying device (10) arranged side by side left and right are installed on the feeding frame. The left conveying device and the right conveying device both include feeding pulleys (11) installed at the front and rear ends of the feeding frame through vertical rotating shafts. A conveyor belt (12) is sleeved on the two feeding pulleys on each side. A feeding power device (13) for driving the feeding pulleys to rotate is installed on the feeding frame; a ridging device (14) with a wider front part and a narrower rear part is installed at the front of the feeding frame and is located between the front sections of the left conveying device and the right conveying device. The left side of the ridging device is in pressing fit with the right outer wall of the front section of the conveyor belt of the left conveying device and forms a left picking channel (15) for picking up and conveying the carrot stems and leaves of the left ridge upward and backward. The right side of the ridging device is in pressing fit with the left outer wall of the front section of the conveyor belt of the right conveying device and forms a right picking channel (16) for picking up and conveying the carrot stems and leaves of the right ridge upward and backward. The right outer wall of the rear section of the left conveying device and the left outer wall of the rear section of the right conveying device behind the ridging device are closely fitted and form a total picking channel (17) for clamping and conveying the carrot stems and leaves upward and backward. The said ridging device (13) includes a central frame (100) that extends obliquely forward with a lower front and a higher rear. The central frame includes an upper shelf plate (101) and a lower shelf plate (102) that are fixedly connected and arranged at intervals up and down. Left inner picking devices (104) for pushing the carrot stems and leaves of the left row backward and upward and right inner picking devices (105) for pushing the carrot stems and leaves of the right row backward and upward are respectively installed on the left and right sides of the central frame; the left inner picking device includes a plurality of left rollers (106) arranged at intervals and vertically installed between the left side of the upper shelf plate and the left side of the lower shelf plate. It also includes an annular left belt (107) sleeved on the above-mentioned left rollers. The outer wall of the left half of the left belt extends out of the left track of the central frame; the right inner picking device includes a plurality of right rollers (108) arranged at intervals and vertically installed between the right side of the upper shelf plate and the right side of the lower shelf plate. It also includes an annular right belt (109) sleeved on the above-mentioned right rollers. The outer wall of the right half of the right belt extends out of the right track of the central frame; the left rollers at the rear end of the left inner picking device and the right rollers at the rear end of the right inner picking device are power rollers. Axially extending power grooves (127) are provided on the roller walls of the power rollers. Power ribs (128) corresponding to the power grooves are fixedly provided on the inner walls of the left belt and the right belt. A power transmission device (129) is installed at the upper end of the power roller;The feeding frame is provided with a plurality of pressing auxiliary devices (18) for pressing and fitting the right outer wall of the middle and rear section of the left conveying device and the left outer wall of the middle and rear section of the right conveying device, and for pressing and fitting the left and right sides of the conveyor belt and the ridge closing device; the front part of the feeding frame is also provided with a leaf separator (0-0) located above the ridge closing device and capable of longitudinally cutting and separating the stems and leaves of carrots from adjacent parts of the two ridges; a root and leaf separator (19) capable of cutting and separating the stems and leaves of carrots and roots is provided below the middle and rear section of the feeding frame; a crawler vehicle below the root and leaf separator is provided with a plurality of pressing auxiliary devices (18) for pressing and fitting the right outer wall of the middle and rear section of the left conveying device and the left and right sides of the conveyor belt and the ridge closing device; a leaf separator (0-0) is provided at the front part of the feeding frame and is located above the ridge closing device and capable of longitudinally cutting and separating the stems and leaves of carrots from adjacent parts of the two ridges; a root and leaf separator (19) is provided below the middle and rear section of the feeding frame and capable of cutting and separating the stems and leaves of carrots and roots; A carrot output device (20) is installed to transport the separated carrot roots to the ground; a stem and leaf receiver (21) is installed at the rear of the crawler vehicle and is located below the rear end of the main extraction channel; a straightening guide (22) is installed at the front section of the feeder frame to straighten the stems and leaves of the carrots on the left and right ridges and guide them to the corresponding left extraction channel and right extraction channel respectively; a straightening guide (23) is installed at the upper front end of the feeder frame and extends forward to straighten the carrot stems and leaves from the outside to the inside and upwards and guide the crawler vehicle in the forward direction. ; 2. The carrot harvester according to claim 1, characterized in that: The vehicle frame includes a frame chassis (24) hinged to the crawler vehicle through a main vehicle shaft. A middle support frame (25) extending downward is fixedly connected to the middle of the feeding frame. The lower end of the middle support frame is hinged to the frame chassis through the main vehicle shaft or a hinge shaft arranged parallel to the main vehicle shaft. A secondary hydraulic cylinder (26) is hinged to the front section or the rear section of the feeding frame, and the lower end of the secondary hydraulic cylinder is hinged to the corresponding frame chassis below.

3. The carrot harvester according to claim 2, characterized in that: The plow angle adjuster includes an upper threaded column (31) hinged to the vehicle frame through an upper adjusting hinge shaft (30), a lower threaded column (33) hinged to the plow frame through a lower adjusting hinge shaft (32), and a positive and negative threaded sleeve (34) capable of being screwed with the upper threaded column and the lower threaded column. The thread directions of the upper threaded column and the lower threaded column are set in opposite directions. An angle adjusting handle (35) is fixedly connected to the middle of the outer wall of the positive and negative threaded sleeve. The upper adjusting hinge shaft, the lower adjusting hinge shaft, and the main vehicle shaft are arranged in parallel. The angle adjusting handle consists of four evenly arranged around the outer circumference of the positive and negative threaded sleeve. A angle adjusting rope (36) capable of being fixedly connected to the plow frame below is connected to the end of each angle adjusting handle.

4. The carrot harvester according to claim 3, characterized in that: The pressing auxiliary device includes a pressing auxiliary frame (40) hinged in the middle to the feeding frame. A pressing auxiliary wheel (41) capable of rollingly cooperating with the inner side wall of the conveyor belt is rotatably installed at the outer end of the pressing auxiliary frame close to the conveyor belt. A pressing auxiliary ring groove (42) capable of containing the conveyor belt and limitingly cooperating with the upper and lower edges of the conveyor belt is provided around the outer circumference of the hub of the pressing auxiliary wheel. A pressing auxiliary tension spring (43) capable of elastically pressing the pressing auxiliary wheel outward against the conveyor belt is connected between the inner end of the pressing auxiliary frame and the feeding frame.

5. The carrot harvester according to claim 4, characterized in that: The root and leaf separator includes a separation rack (50) extending forward and backward. The included angle between the forward and backward extension trajectory of the separation rack and the forward and backward extension trajectory of the rear section in the feeding rack above is an acute angle less than or equal to 45 degrees. Two sets of separation mechanisms arranged side by side and symmetrically are installed in the middle and rear of the separation rack. Each set of separation mechanisms includes a separation bracket (51) fixed on the corresponding side of the separation rack. A separation main shaft (53) driven by a separation power device (52) is rotatably installed between the front of each separation bracket and the corresponding part of the lower separation rack. A separation main gear (54) is installed at the lower section of the separation main shaft. A separation sub-gear (55) corresponding to the separation main gear in the front and back is rotatably installed at the front of the separation rack. A separation chain link (56) for transmitting and cooperating between the separation sub-gear and the separation main gear is sleeved on the support rings of the separation sub-gear and the separation main gear. The separation chain link is composed of a number of chain links (57) articulated end to end. A tensioning frame (58) is fixedly connected to the top or bottom surface of the chain link. A tensioning slideway (59) extending laterally outward along the annular trajectory of the separation chain link is provided on the tensioning frame. A tensioning slide rod (60) that can only slide longitudinally along the tensioning slideway is slidably inserted into the tensioning slideway. A tensioning limit block for preventing the tensioning slide rod from slipping off is fixedly installed at the inner end of the tensioning slide rod close to the separation main gear. A tensioning U-shaped frame (61) with a horizontal frame surface is fixedly connected to the outer end of the tensioning slide rod. Tensioning cross shafts (62) perpendicular to the tensioning slide rod are fixedly connected to both ends of the inner wall of the tensioning U-shaped frame. A number of tensioning rollers (63) that can rotate freely are sleeved on the tensioning cross shafts. A tensioning elastic member (64) for elastically sliding the tensioning slide rod outward and elastically pressing and cooperating the tensioning limit block with the corresponding part of the tensioning frame is also installed on the tensioning frame. Separation tensioning wheels (67) that can tighten the separation chain link into a straight chain segment (65) located inside and an arc-shaped chain segment (66) located outside are also installed on both sides of the separation rack. The tensioning rollers of the two straight chain segments are elastically clamped together under the action of the tensioning elastic member and form an automatically aligned channel (68) extending forward and backward. The automatically aligned channel and the total extraction channel are synchronously coordinated to keep the whole carrot in a vertical state. A radish cutting mechanism (69) corresponding to the rear end of the automatically aligned channel is installed on the middle and rear section of the separation rack. The radish cutting mechanism includes disc-shaped cutting blades (71) rotatably installed on both sides of the separation rack through a vertical knife shaft (70). The adjacent parts of the two cutting blades are stacked up and down and are arranged corresponding to the automatically aligned channel in the front and back. A separation main sheave (72) is installed at the upper section of the separation main shaft. A separation sub-sheave (74) corresponding to the separation main sheave in the front and back is rotatably installed between the rear section of the separation bracket and the corresponding separation rack below through a separation sub-shaft (73). A separation belt (75) for transmitting and cooperating between the separation main sheave and the separation sub-sheave is sleeved on the separation main sheave and the separation sub-sheave. The adjacent straight line segments of the two separation belts are tightly attached and form a translation cutting channel (76) for clamping and moving the middle and lower parts of the carrot stems and leaves horizontally backward. The translation cutting channel and the automatically aligned channel are synchronously coordinated to keep the whole carrot in a vertical state. The translation cutting channel can cover the rear section of the automatically aligned channel and the overlapping part of the two cutting blades downward.

6. The carrot harvester according to claim 5, characterized in that: The radish output device comprises a primary output mechanism (80) mounted on a crawler vehicle below the root and leaf separator, the crawler vehicle further comprising a secondary output mechanism (81) whose input end is located below the output end of the primary output mechanism, the rear end of the crawler vehicle being hingedly connected to a tertiary output mechanism (83) via a tertiary vertical hinge shaft (82), the input end of the tertiary output mechanism being located below the output end of the secondary output mechanism; the primary output mechanism comprises a primary output frame (84), a primary active roller driven by a primary power output device being mounted on the primary output frame, a primary passive roller lower than the primary active roller and arranged in parallel to the primary active roller being mounted on the primary output frame, a primary output belt (85) being mounted on the primary active roller and the primary passive roller; the secondary output mechanism comprises a secondary output frame (86), a secondary active roller driven by a secondary power output device being mounted on the secondary output frame, the secondary output mechanism The output frame is also provided with a secondary passive roller which is lower than the secondary active roller and arranged in parallel, and a secondary output belt (87) is provided on the secondary active roller and the secondary passive roller; the tertiary output mechanism comprises a tertiary output frame (88) hinged on the crawler vehicle through a tertiary vertical hinge shaft, a tertiary lifting frame (90) is hinged on one end of the tertiary output frame close to the crawler vehicle through a tertiary horizontal hinge shaft (89), and a tertiary hydraulic cylinder (91) capable of adjusting the inclination angle of the tertiary lifting frame is provided between the tertiary lifting frame and the tertiary output frame; a tertiary active roller driven by a tertiary power output device is provided on the input end of the tertiary lifting frame, and a tertiary passive roller arranged in parallel with the tertiary active roller is also provided on the tertiary lifting frame, and a tertiary output belt (92) is provided on the transmission sleeve of the tertiary active roller and the tertiary passive roller, and a transversely extending elastic rubber strip (93) is provided on the outer surface of the tertiary output belt.

7. The carrot harvester according to claim 6, characterized in that: The stem and leaf receiver comprises a receiving frame (001) fixedly connected to the lower rear end of the feeding frame, a circular receiving ring (002) fixedly connected to the bottom of the receiving frame, and a plurality of receiving hooks (003) mounted on the receiving ring; and also comprises a receiving pocket (006) with an upwardly disposed mouth, the mouth of the receiving pocket being provided with a plurality of receiving hanging holes (004) corresponding to and hooked with the receiving hooks one by one, and a receiving support frame (005) matched with the bottom support of the receiving pocket being fixedly connected to the rear end of the crawler vehicle.

8. The carrot harvester according to claim 7, characterized in that: The straightening guide comprises a guide shaft (010) rotatably mounted on the left and right sides of the front end of the feeding rack and extending forward, a guide cone cylinder (011) with a tip in front coaxially fixedly connected to the front section of the guide shaft, and a guide power device drivingly connected to the rear end of the guide shaft is installed on the feeding rack; the rear ends of the adjacent sides of the two guide cone cylinders are respectively arranged corresponding to the left extraction channel and the right extraction channel; a straightening spiral ring (012) is coaxially fixedly arranged on the outer wall of the guide cone cylinder and spirally extends from the outer wall of the front end of the guide cone cylinder to the outer wall of the rear end, the straightening spiral ring on the left side of the tracked vehicle is arranged in a clockwise direction when viewed from the front end to the rear end, and the straightening spiral ring on the right side of the tracked vehicle is arranged in a counterclockwise direction when viewed from the front end to the rear end.

9. The carrot harvester according to claim 8, characterized in that: The upright guiding device includes an upright guiding frame (022) hinged to the front section of the feeding rack on the cab side through a vertically arranged upright guiding shaft (021). A horizontally extending upright guiding adjusting plate (023) is fixedly connected to the middle section of the upright guiding frame. An arc-shaped long hole (024) corresponding to the upright guiding shaft as the center is provided on the upright guiding adjusting plate. A guiding positioning hole corresponding to the arc-shaped long hole is provided at the front end of the feeding rack. An upright guiding adjusting bolt (025) that can lock the upright guiding adjusting plate on the feeding rack is inserted in the guiding positioning hole and the arc-shaped long hole. An upright guiding wheel disc (027) driven by an upright guiding power device (026) through a reduction mechanism and with a rotating shaft extending left and right is installed at the front section of the upright guiding frame. Elastic upright rubber rods (028) extending outwardly and scattered are fixedly arranged at intervals on the outer periphery of the upright guiding wheel disc. Upright spacing plates (029) are fixedly connected to the left and right sides of the upright guiding wheel disc on the upright guiding frame. The upper part of the rotation trajectory of the end of the upright rubber rod should be higher than the upper part of the upright spacing plate. The front part of the upright spacing plate is a circular arc plate protruding forward or a triangular plate with a pointed part extending forward and downward and a wide part extending backward. An upright guiding holding rod (030) extending backward is fixedly connected to the upper part of the rear end of the upright spacing plate close to the carrot stems and leaves.

10. The carrot harvester according to claim 9, characterized in that: The leaf separator (0-0) includes a leaf separating frame (0-6) installed between the ridger and the front part of the feeding rack in a tilted manner with the front end lower and the rear end higher through a leaf separating bracket (0-7). The front and rear ends of the leaf separating frame are respectively rotatably installed with a front leaf separating wheel (0-8) and a rear leaf separating wheel (0-9) through corresponding left and right horizontally extending rotating shafts. A leaf separating drive belt (0-10) is sleeved on the front and rear leaf separating wheels. A leaf separating motor (0-12) capable of driving the rear leaf separating wheel and the leaf separating drive belt to rotate is installed on the leaf separating frame. A plurality of leaf separating blades (0-11) capable of cutting the carrot stems and leaves above the leaf separating frame from the middle and separating them left and right are fixedly arranged at intervals along the extending direction of the leaf separating drive belt on the outer ring wall of the leaf separating drive belt; the leaf separating bracket includes an upper leaf separating frame (0-1) fixedly connected to the front part of the feeding rack and extending downward, and also includes a lower leaf separating frame (0-2) fixedly connected to the rear part of the ridger (14) and extending upward. The lower part of the upper leaf separating frame is fixedly connected to the upper part of the lower leaf separating frame through a corresponding leaf separating rear bolt (0-3) passing through both of them. The rear part of the leaf separating bracket is tightly locked and connected to the rear section of the leaf separating frame through a leaf separating regulator (0-13) capable of adjusting the height of the rear end of the leaf separating frame. It also includes a front leaf separating frame (0-4) fixedly connected to the front part of the ridger and extending upward. A row of vertically spaced leaf separating front holes (0-5) are provided on the front leaf separating frame. The front part of the leaf separating frame is tightly locked and matched with the corresponding leaf separating front holes through a leaf separating front bolt (0-19); the leaf separating regulator includes a leaf separating adjusting arm (0-15) fixedly connected to the leaf separating bracket. The leaf separating adjusting arm is in an arc shape centered on the axis of the leaf separating front bolt. A strip-shaped groove (0-16) longitudinally extending along the arc track is provided on the leaf separating adjusting arm. A horizontal adjusting stud (0-17) slidably inserted and matched with the strip-shaped groove is fixedly connected to the leaf separating frame. A horizontal adjusting nut (0-18) for tightly locking the leaf separating adjusting arm and the leaf separating frame is screwed at the end of the horizontal adjusting stud.

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