CN114097421B

CN114097421B - Self-propelled shallow root digging and celery cutting combined harvester

Info

Publication number: CN114097421B
Application number: CN202111192181.9A
Authority: CN
Inventors: 唐忠; 赵云飞; 陈树人; 梁亚权; 章浩
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2023-05-05
Anticipated expiration: 2041-10-13
Also published as: CN114097421A; WO2023060798A1

Abstract

The invention provides a self-propelled shallow root digging and celery cutting combined harvester which comprises a harvesting and root cutting device, a clamping and conveying device, a chassis walking device and a transmission device, wherein the harvesting and root cutting device comprises a main body, a base plate and a base plate; the harvesting root cutting device is arranged at the front end of the chassis running device and is positioned in front of the clamping conveying device, and the clamping conveying device is arranged at the front part of the chassis running device; the transmission device is respectively connected with the harvesting root cutting device, the clamping and conveying device and the chassis running device. The harvester has ingenious structure and high mechanization degree, can realize seedling pulling, root cutting, orderly conveying, bundling and transportation of celery, reduces labor cost and labor intensity, improves harvesting efficiency of celery, and provides guarantee for large-scale production of celery.

Description

Self-propelled shallow root digging and celery cutting combined harvester

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a self-propelled shallow digging root-cutting celery combine harvester.

Background

China is a large country for vegetable production, vegetable production is an important component of agricultural industry, and along with adjustment of rural industrial structures and development of vegetable industry, the demands on vegetable production machinery are increasingly increased. Celery is a commonly planted vegetable in many areas of China, the traditional harvesting mode is that celery roots are pulled up manually and then placed in order, labor intensity is high, and harvesting efficiency is low. And celery has bigger root blocks, which is unfavorable for packaging and transportation, and the working procedure of manually cutting root increases the labor capacity. The manual picking occupies too much manpower, not only increases the production cost, but also restricts the large-scale production of celery.

In recent years, some designs for attempting to solve celery harvesting appear successively, but the operation effect of the celery harvester can not meet the application requirements of related technologies, and the problems of unreasonable mechanical structure, low operation efficiency, poor practicability and the like still exist, so that the utilization rate of the celery harvester is low and the celery harvester is difficult to popularize and use. The search shows that the row alignment celery harvester disclosed in the Chinese patent with the application number of 201721300909.4 can realize harvesting, root cutting and collection of celery, but the hand operation mode causes high labor intensity, the single row harvesting efficiency is low, and the requirement on the planting mode of celery is high. Only row aligned celery can be harvested, and the machine adaptability is poor. The automatic celery harvester disclosed in the Chinese patent application number 201920449672.9 can realize self-propelled operation by utilizing the power of a tractor, but adopts a conveying mode of front and rear longitudinal conveying belts and transverse conveying belts, so that celery is easy to be scattered when conveyed to the tail end for collection. The structure of the header determines that the operation quality is poor and the working efficiency is low when celery with larger planting density is harvested. The cutters are driven by respective hydraulic motors, so that the energy consumption is high, and the machine structure is complex. The celery harvester disclosed in the Chinese patent application number 200420087797.5 is ingenious in structure and convenient to operate, but the single-row harvesting characteristic of the celery harvester is low in operation efficiency. The clamping effect of the inclined angle of the conveying belt on the celery is poor, the cutting position of the cutting knife on the root is uncertain, the operation quality is poor, and additional working procedures are added. The conveying and collecting device cannot achieve better orderly harvesting and collecting, and labor intensity is increased due to the operation mode of manual walking and walking.

Disclosure of Invention

Aiming at the problems, the invention provides the self-propelled shallow root digging and celery cutting combined harvester which is ingenious in structure and high in mechanical degree, can realize seedling pulling, root cutting, orderly conveying, bundling and conveying of celery, reduces labor cost and labor intensity, improves celery harvesting efficiency, and provides guarantee for large-scale production of celery.

The technical scheme of the invention is as follows: a self-propelled shallow root digging and celery cutting combine harvester comprises a harvesting and root cutting device, a clamping and conveying device, a chassis walking device and a transmission device; the harvesting root cutting device is arranged at the front end of the chassis running device and is positioned in front of the clamping conveying device, and the clamping conveying device is arranged at the front part of the chassis running device; the transmission device is respectively connected with the harvesting root cutting device, the clamping and conveying device and the chassis walking device.

In the scheme, the harvesting and root cutting device comprises a frame, a digging shovel, a sieve, a seedling dividing plate, a conveying belt, a first conveying roller, a second conveying roller, a cutting plate and a cutting mechanism; the soil digging shovel is arranged below the front end of the frame, the sieve is arranged behind the soil digging shovel and hinged to the lower side of the frame, the cutting plate is arranged behind the sieve, one end of the grain dividing plate is positioned in front of the soil digging shovel, the other end of the grain dividing plate is arranged on the front side of the cutting plate, the first conveying roller is arranged at the front end of the frame, the second conveying roller is arranged at the rear end of the frame, the conveying belt is arranged on the first conveying roller and the second conveying roller, the grain dividing plate and the conveying belt are alternately arranged in parallel, gaps are reserved between the grain dividing plate and the conveying belt, a plurality of platy bulges are arranged on the outer surface of the conveying belt, a plurality of through grooves matched with the conveying belt are formed in the cutting plate, and the cutting mechanism is arranged below the through grooves of the cutting plate.

Further, the cutting mechanism comprises a cutting knife and a cutting knife connecting rod; the cutting knife is arranged below the through groove of the cutting plate, and the cutting knife connecting rod is arranged on the cutting knife and connected with the transmission device.

Further, the device also comprises a profiling wheel mechanism; the profiling wheel mechanism comprises a profiling wheel, a wheel shaft, a supporting screw rod, an adjusting nut and a spring; the wheel shaft is arranged on the lower side of the frame, the profiling wheel is arranged on the wheel shaft, the supporting screw is arranged on the lower side of the frame and the wheel shaft, and the adjusting nut and the spring are arranged on the supporting screw.

Further, the hydraulic rod and the hinge are also included; the frame is connected with the chassis through a hinge, one end of the hydraulic rod is connected with the chassis, and the other end of the hydraulic rod is connected with the frame.

Furthermore, the front end of the digging shovel is provided with a plurality of triangular pyramids.

In the above scheme, the clamping and conveying device comprises a plurality of third conveying rollers, a plurality of fourth conveying rollers, a plurality of clamping conveying belts, flexible reel teeth, gears and a conveying roller frame; the third conveying rollers are vertically arranged on the chassis in pairs, the fourth conveying rollers are horizontally arranged on the conveying roller frame in pairs, the conveying roller frame is arranged on the chassis, the clamping conveying belts are arranged on the third conveying rollers and the fourth conveying rollers in pairs, flexible reel teeth are arranged at the upper ends of the third conveying rollers, gears are arranged at the lower ends of the third conveying rollers, and gears of each group of third conveying rollers are meshed.

Further, the flexible reel tooth is provided with two arc teeth which are arranged in a central symmetry mode.

In the scheme, the chassis traveling device comprises a chassis, a first bundling workbench, a second bundling workbench and a vegetable bundling box, and the first bundling workbench, the second bundling workbench and the vegetable bundling box are arranged on the chassis.

In the scheme, the transmission device comprises an engine, a belt tensioning device, a two-shaft gear box, a universal joint, a three-shaft gear box, a first crank connecting rod and a second crank connecting rod;

the engine is arranged on the chassis, the belt tensioning device is arranged in front of the engine, the two-shaft gear box is arranged on the right side of the third conveying roller, the universal joint is arranged above the two-shaft gear box, the three-shaft gear box is arranged on the rear right side of the frame, the first crank connecting rod is arranged below the three-shaft gear box, and the second crank connecting rod is arranged on the front right side of the frame. The power of the engine is transmitted to a two-shaft gear box and a three-shaft gear box, the two-shaft gear box drives the universal joint to rotate, and the paired third conveying rollers are driven to rotate; the upper extension shaft of the triaxial gearbox drives the second conveying roller to rotate, and the lower extension shaft drives the cutter connecting rod to swing through the first crank connecting rod; the triaxial gearbox transmits power to the second crank connecting rod and drives the screen to swing.

Compared with the prior art, the invention has the beneficial effects that: the invention has simple structure, can keep a good and consistent upright state in the conveying process, can realize celery seedling pulling, orderly conveying and root cutting, and has good operation quality and reduced labor cost compared with the existing soil root cutting technology. According to the celery harvesting and root cutting device, celery is transferred to the clamping and conveying device, the clamping and conveying device drops the celery into the vegetable receiving box, and disorder of the celery in conveying and collecting processes is avoided. According to the invention, the bundling workbench is arranged on the chassis, celery in the vegetable receiving box is bundled and then placed in the vegetable bundling box, so that integrated operation from seedling pulling to bundling and conveying is realized. The invention fully utilizes the space resources of the machine, so that the harvesting and bundling are performed simultaneously, and the operation time is saved. The invention has reasonable structure and realizes the operation of the whole machine by utilizing the power of the transmission device. The invention can adjust the height of the harvesting root cutting device and improve the working quality. The profile modeling wheel can assist in adjusting the height of the harvesting root cutting device, so that the stability of the machine is improved, the impact of the machine on the ground is buffered, and the vibration is reduced.

Drawings

FIG. 1 is a side view of a self-propelled shallow root-cutting celery combine harvester according to the present invention.

Fig. 2 is a schematic diagram of the overall structure of the self-propelled shallow-digging root-cutting celery combine harvester.

FIG. 3 is a schematic view of the harvesting and root cutting apparatus of the present invention.

Fig. 4 is a bottom view of the harvesting and root cutting apparatus of the present invention.

Fig. 5 is a schematic view of the structure of the excavator of the present invention.

Fig. 6 is a schematic view of the screen structure of the present invention.

Fig. 7 is a schematic view of the structure of the seedling dividing plate of the present invention.

Fig. 8 is a schematic view of the conveyor belt assembly structure of the present invention.

Fig. 9 is a bottom view of the root cutting device of the present invention.

FIG. 10 is a schematic view of a cutting board structure of the present invention.

FIG. 11 is a schematic view of the profile wheel assembly structure of the present invention.

Fig. 12 is a front view of the clamp delivery device of the present invention.

Fig. 13 is a schematic view of the flexible reel tooth structure of the present invention.

FIG. 14 is a schematic view of a clamping conveyor belt according to the present invention

Fig. 15 is a schematic view of the transmission structure of the present invention.

The method comprises the steps of 1, harvesting a root cutting device; 101. a frame; 102. digging a soil shovel; 103. screening; 104. a seedling dividing plate; 105. a conveyor belt; 106. a first conveying roller; 107. a second conveying roller; 108. cutting the plate; 109. a cutting knife; 110. a cutter connecting rod; 111. profiling wheel; 112. a wheel axle; 113. supporting the screw; 114. an adjusting nut; 115. a spring; 116 hydraulic stems; 117. a hinge; 2. clamping and conveying device; 201. a third conveying roller; 202. a fourth conveying roller; 203. clamping the conveying belt; 204. flexible reel teeth; 205. a gear; 206. a conveying roller frame; 207. a vegetable receiving box; 3. a chassis walking device; 301. a chassis; 302. a first bundling station; 303. a second bundling station; 304. a vegetable bundle box; 4. a transmission device; 401. an engine; 402. a belt tensioner; 403. a two-axis gearbox; 404. a universal joint; 405. a three-axis gearbox; 406. a first crank link; 407. and a second crank connecting rod.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 and 2, the self-propelled shallow root digging and celery cutting combined harvester comprises a harvesting and root cutting device 1, a clamping and conveying device 2, a chassis walking device 3 and a transmission device 4; the harvesting root cutting device 1 is arranged at the front end of the chassis running device 3 and is positioned in front of the clamping conveying device 2, and the clamping conveying device 2 is arranged at the front part of the chassis running device 3; the transmission device 4 is respectively connected with the harvesting root cutting device 1, the clamping and conveying device 2 and the chassis walking device 3.

As shown in fig. 3-11, the harvesting and root-cutting device 1 comprises a frame 101, a soil digging shovel 102, a screen 103, a seedling dividing plate 104, a conveying belt 105, a first conveying roller 106, a second conveying roller 107, a cutting plate 108, a cutting knife 109, a cutting knife connecting rod 110, a copying wheel 111, a wheel shaft 112, a supporting screw 113, an adjusting nut 114, a spring 115, a hydraulic rod 116 and a hinge 117, wherein the soil digging shovel 102 is arranged below the front end of the frame 101, the screen 103 is arranged behind the soil digging shovel 102 and hinged to the middle section of the lower side of the frame 101, the cutting plate 108 is arranged behind the screen 103, the seedling dividing plate 104 is arranged on the upper side of the cutting plate 108, the cutting knife 109 is arranged on the lower side of the cutting plate 108, the cutting knife connecting rod 110 is arranged on the cutting knife 109, the first conveying roller 106 is arranged at the front end of the frame 101, the second conveying roller 107 is arranged at the rear end of the frame 101, the conveying belt 105 is arranged on the first conveying roller 106 and the second conveying roller 107, the seedling dividing plate 104 and the conveying belt 105 are alternately arranged in parallel to the conveying belt 105, a plurality of cutting grooves are formed in parallel with the conveying plates 105, and a plurality of the cutting grooves are formed in the conveying plates 108 are arranged on the upper side of the conveying plate 108, and are matched with the cutting plate 108; the wheel shaft 112 is arranged on the lower side of the machine frame 101, the profile wheel 111 is arranged on the wheel shaft 112, the supporting screw 113 is arranged on the lower side of the machine frame 101 and the wheel shaft 112, the adjusting nut 114 and the spring 115 are arranged on the supporting screw 113, the machine frame 101 is connected with the chassis 301 through the hinge 117, one end of the hydraulic rod 116 is connected with the chassis 301, and the other end is connected with the machine frame 101. The invention has reasonable structure and realizes the operation of the whole machine by utilizing the power of the engine. The height of the harvesting and root cutting device is adjusted through the hinge 117 and the hydraulic rod 116, so that the working quality is improved. The spring 115 on the profile wheel 111 can assist in adjusting the height of the harvesting and cutting device, improving the stability of the machine, buffering the impact on the machine, and reducing vibration.

As shown in fig. 5, the front end of the digging shovel 102 is provided with a plurality of triangular pyramids, and the design is used for breaking soil and facilitating seedling pulling.

As shown in fig. 3 and 8, the belt is provided with plate-shaped bulges with a spacing of 5-8 cm, the grain dividing plates 104 and the conveying belts 105 are alternately arranged in parallel, 5 conveying belts 105 and 6 grain dividing plates 104 are arranged in total, and a gap is reserved between the grain dividing plates 104 and the conveying belts 105. The space formed by the platy bulges, the conveying belt and the seedling dividing plate is used for restraining the celery in the vertical posture, and the conveying belt rotates to convey the celery from the front end to the rear end of the harvesting and root cutting device.

As shown in fig. 11, the wheel axle 112 and the supporting screw 113 are hinged on the frame 101, a through hole is arranged at the middle section of the wheel axle 112, the adjusting nut 114 and the spring 115 are sleeved on the supporting screw 113, and the spring 115 is a compression spring. The adjusting nut 114 and the spring 115 are used to define the position of the axle 112, and when the ground impacts the cam 111, the axle 112 swings and compresses the spring 115, cushioning the ground impact. The adjustment nut 114 is used to adjust the height of the cam 111.

As shown in fig. 9 and 10, 5 trapezoid grooves penetrating up and down are arranged in parallel on the cutting board 108, and two ends of the 5 cutters 109 are hinged on the cutting board 108 and the cutter connecting rod 110. The trapezoid groove penetrated by the cutting plate 108 is used for cutting off the celery root system through the shearing action formed by the swinging cutter 109 and the cutting plate 108.

The harvesting and root cutting device is simple in structure, can keep a good and consistent vertical state in the conveying process, and can realize celery seedling pulling, orderly conveying and root cutting. The digging shovel 102 with the triangular pyramid can crush soil and dig celery out, and soil and impurities on root systems and stems and leaves are removed by shaking of the sieve 103, so that the operation effect is ensured. The root system is cut off through the cutting plate 108 and the cutter 109, and the root cutting position is accurately controlled. Compared with the existing soil root cutting technology, the invention has good operation quality and reduces the labor cost.

As shown in fig. 12 to 14, the clamping and conveying device 2 includes a third conveying roller 201, a fourth conveying roller 202, a clamping conveying belt 203, flexible reel teeth 204, gears 205, a conveying roller frame 206 and a vegetable receiving box 207, wherein the third conveying rollers 201 are vertically installed on a chassis 301 in groups, the fourth conveying rollers 202 are horizontally installed on the conveying roller frame 206 in groups, the third conveying rollers 201 are installed on the chassis 301, the fourth conveying rollers 202 are installed on the conveying roller frame 206, the conveying roller frame 206 is installed on the chassis 301, the clamping conveying belt 203 is installed on the third conveying roller 201 and the fourth conveying roller 202, the flexible reel teeth 204 are installed at the upper ends of the third conveying rollers 201, the gears 205 are installed at the lower ends of the third conveying rollers 201, the gears 205 of each group of third conveying rollers 201 are meshed, and the vegetable receiving box 207 is installed on the chassis 301.

As shown in fig. 12-14, the flexible reel teeth 204 are sleeved on the third conveying roller 201, and are made of rubber with high elasticity, the two teeth are centrosymmetric, the teeth have radians, and the two flexible reel teeth 204 on each pair of third conveying rollers 201 are vertically arranged. The third conveying rollers 201 are arranged in pairs, and the lower end of each pair of third conveying rollers 201 is provided with a meshed gear 205. The flexible reel teeth 204 shift and transition the celery conveyed by the conveying belt 105 of the harvesting and root cutting device 1 to the clamping conveying belt 203, the posture of the clamping conveying belt 203 is changed from vertical to horizontal by twisting, and the meshed gears 205 enable the rotation directions of the two third conveying rollers 201 to be opposite.

As shown in fig. 2, the vegetable receiving box 207 has 3 blank spaces inside for placing celery conveyed by different clamping conveying belts 203, so as to ensure that the celery is placed in sequence and not scattered. The first bundling table 302 and the second bundling table 303 are used for taking by people, which facilitates the manual bundling operation, and a ladder is arranged near the first bundling table 302 and the second bundling table 303 on the chassis 301.

The rotation of the flexible reel teeth 204 of the clamping conveying device transits celery conveyed by the conveying belt 105 of the harvesting and root cutting device to the clamping conveying belt 203, the posture of the clamping conveying belt 203 is changed into the horizontal posture from the vertical posture, the celery on the clamping conveying belt 203 falls into different blank spaces of the vegetable receiving box 207, the celery is automatically placed in order, and disorder of the celery in the conveying and collecting processes is avoided.

As shown in fig. 2, the chassis walking device 3 includes a chassis 301, a first third bundling table 02, a second third bundling table 03, and a vegetable bundle box 304, where the first bundling table 302, the second bundling table 303, and the vegetable bundle box 304 are mounted on the chassis 301, the first bundling table 302 is disposed on the right of the vegetable receiving box 207, the second bundling table 303 is disposed behind the vegetable receiving box 207, and the vegetable bundle box 304 is disposed on the right of the third bundling table 03. The invention is provided with two bundling work tables on the chassis 301, which are distributed at the rear side and the right side of the dish receiving box. When the integrated seedling pulling machine works, celery in the vegetable receiving box is manually bundled and then placed in the vegetable bundling box, so that integrated operation from seedling pulling to bundling and conveying is realized. The structure fully utilizes the space resources of the machine, so that the harvesting and bundling are performed simultaneously, and the operation time is saved.

As shown in fig. 15, the transmission 4 includes an engine 401, a belt tensioner 402, a two-axis gear box 403, a universal joint 404, a three-axis gear box 405, a first crank link 406, and a second crank link 407, the engine 401 is disposed on the chassis 301, the belt tensioner 402 is mounted in front of the engine 401, the two-axis gear box 403 is mounted on the right of the third conveying roller 201, the universal joint 404 is mounted above the two-axis gear box 403, the three-axis gear box 405 is mounted on the right rear portion of the frame 101, the first crank link 406 is mounted below the three-axis gear box 405, and the second crank link 407 is mounted on the right front portion of the frame 101. The power of the engine 401 is transmitted to a two-axis gear box 403 and a three-axis gear box 405 through belt transmission, the two-axis gear box 403 drives a universal joint 404 to rotate, one of the paired third conveying rollers 201 is driven to rotate through belt transmission, and the other third conveying roller 201 is driven to rotate by using a gear 205; the upper extension shaft of the triaxial gearbox 405 drives the second conveying roller 107 to rotate through belt transmission, and the lower extension shaft drives the cutter link 110 to swing through the first crank link 406; the triaxial gearbox 405 transmits power to the second crank link 407 through a belt drive and drives the screen 103 to oscillate.

When the harvester is specifically used, the length of the hydraulic rod 116 is adjusted according to the planting condition of celery to be harvested, the height of the harvesting and root cutting device 1 is adjusted to a proper position, and the height of the profile wheel 111 is adjusted through the adjusting nut 114, so that the soil penetration depth of the soil digging shovel 102 is moderate. During the forward operation of the machine, the seedling dividing plate 104 divides the celery to be harvested into rows, the soil scooping shovel 102 scoops up the celery and the soil, and the plate-shaped protrusions on the rotating conveyor belt 105 divide the rows of celery into single pieces or a few pieces and convey them backward. In the conveying process, the shaking screen 103 enables soil and impurities on celery root systems to fall to the ground through the screen 103, when celery is conveyed backwards along the trapezoid groove on the cutting plate 108, root systems extend downwards through the trapezoid groove, and the cutting knife connecting rod 110 drives the cutting knife 109 to swing, so that the celery root systems are cut off through shearing action. The celery is conveyed to the rear end of the harvesting root cutting device 1 by the conveying belt 105, the celery is pulled to the middle of the two third conveying rollers 201 with opposite rotation directions by rotating the flexible pulling teeth 204, the celery is clamped and conveyed backwards by the two clamping conveying belts 203 with opposite rotation directions, the posture of the clamping conveying belts 203 is changed from vertical to horizontal by twisting, and then the celery falls into a blank inside the vegetable receiving box 207. Celery is manually baled on a first baling station 302 and a second baling station 303 and placed in a vegetable baling box 304. After a certain amount of work is done, the machine arrives at the designated location to unload the bales.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The self-propelled shallow root digging and celery cutting combined harvester is characterized by comprising a harvesting and root cutting device (1), a clamping and conveying device (2), a chassis traveling device (3) and a transmission device (4); the harvesting root cutting device (1) is arranged at the front end of the chassis running device (3) and is positioned in front of the clamping conveying device (2), and the clamping conveying device (2) is arranged at the front part of the chassis running device (3); the transmission device (4) is respectively connected with the harvesting root cutting device (1), the clamping and conveying device (2) and the chassis walking device (3);

the harvesting and root cutting device (1) comprises a frame (101), a digging shovel (102), a sieve (103), a seedling dividing plate (104), a conveying belt (105), a first conveying roller (106), a second conveying roller (107), a cutting plate (108) and a cutting mechanism;

the soil digging shovel (102) is arranged below the front end of the frame (101), the sieve (103) is arranged behind the soil digging shovel (102) and hinged to the lower side of the frame (101), the cutting plate (108) is arranged behind the sieve (103), one end of the seedling dividing plate (104) is positioned in front of the soil digging shovel (102), the other end of the seedling dividing plate is arranged on the front side of the cutting plate (108), the first conveying roller (106) is arranged at the front end of the frame (101), the second conveying roller (107) is arranged at the rear end of the frame (101), the conveying belt (105) is arranged on the first conveying roller (106) and the second conveying roller (107), the seedling dividing plate (104) and the conveying belt (105) are alternately arranged in parallel, a gap is reserved between the seedling dividing plate (104) and the conveying belt (105), a plurality of bulges are arranged on the outer surface of the conveying belt (105), a plurality of through grooves matched with the conveying belt (105) are formed in the cutting plate (108), and the cutting mechanism (108) is arranged below the through grooves; the cutting mechanism comprises a cutting knife (109) and a cutting knife connecting rod (110); the cutter (109) is arranged below the through groove of the cutting plate (108), and the cutter connecting rod (110) is arranged on the cutter (109) and is connected with the transmission device (4);

the clamping conveying device (2) comprises a plurality of third conveying rollers (201), a plurality of fourth conveying rollers (202), a plurality of clamping conveying belts (203), flexible reel teeth (204), gears (205) and a conveying roller frame (206);

the third conveying rollers (201) are vertically arranged on the chassis (301) in pairs, the fourth conveying rollers (202) are horizontally arranged on the conveying roller frame (206) in pairs, the conveying roller frame (206) is arranged on the chassis (301), the clamping conveying belts (203) are arranged on the third conveying rollers (201) and the fourth conveying rollers (202) in pairs, flexible reel teeth (204) are arranged at the upper ends of the third conveying rollers (201), gears (205) are arranged at the lower ends of the third conveying rollers (201), and the gears (205) of each group of third conveying rollers (201) are meshed.

2. The self-propelled shallow-digging root-cutting celery combine harvester of claim 1, further comprising a cam mechanism; the profiling wheel mechanism comprises a profiling wheel (111), a wheel shaft (112), a supporting screw (113), an adjusting nut (114) and a spring (115); the wheel shaft (112) is arranged on the lower side of the frame (101), the profiling wheel (111) is arranged on the wheel shaft (112), the supporting screw (113) is arranged on the lower side of the frame (101) and the wheel shaft (112), and the adjusting nut (114) and the spring (115) are arranged on the supporting screw (113).

3. The self-propelled shallow-digging celery combine harvester according to claim 1, further comprising a hydraulic lever (116) and a hinge (117); the frame (101) is connected with the chassis (301) through a hinge (117), one end of the hydraulic rod (116) is connected with the chassis (301), and the other end of the hydraulic rod is connected with the frame (101).

4. The self-propelled shallow-digging root-cutting celery combine harvester according to claim 1, wherein a plurality of triangular pyramids are arranged at the front end of the digging shovel (102).

5. The self-propelled shallow root-digging celery combine harvester of claim 1, wherein the flexible reel teeth (204) are provided with two arc-shaped teeth arranged symmetrically in the center.

6. The self-propelled shallow-digging celery combine harvester according to claim 1, wherein the chassis walking device (3) comprises a chassis (301), a first bundling table (302), a second bundling table (303) and a vegetable bundle box (304), and the first bundling table (302), the second bundling table (303) and the vegetable bundle box (304) are mounted on the chassis (301).

7. The self-propelled shallow-digging celery combine harvester according to claim 1, wherein the transmission (4) comprises an engine (401), a belt tensioning device (402), a two-axis gearbox (403), a universal joint (404), a three-axis gearbox (405), a first crank link (406) and a second crank link (407);

the belt tensioning device (402) is arranged in front of the engine (401), the two-axis gear box (403) is arranged on the right side of the third conveying roller (201), the universal joint (404) is arranged above the two-axis gear box (403), the three-axis gear box (405) is arranged at the rear right side of the frame (101), the first crank connecting rod (406) is arranged below the three-axis gear box (405), the second crank connecting rod (407) is arranged at the front right side of the frame (101), the power of the engine (401) is transmitted to the two-axis gear box (403) and the three-axis gear box (405), and the two-axis gear box (403) drives the universal joint (404) to rotate so as to drive the paired third conveying roller (201) to rotate; an upper extension shaft of the triaxial gearbox (405) drives the second conveying roller (107) to rotate, and the lower extension shaft drives the cutter connecting rod (110) to swing through the first crank connecting rod (406); the triaxial gearbox (405) transmits power to the second crank link (407) and drives the screen (103) to oscillate.