CN114097421A

CN114097421A - Self-propelled shallow-digging root-cutting celery combine harvester

Info

Publication number: CN114097421A
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: 2022-03-01
Anticipated expiration: 2041-10-13
Also published as: WO2023060798A1; CN114097421B

Abstract

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

Description

Self-propelled shallow-digging root-cutting celery combine 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 big vegetable production country, vegetable production is an important component of agricultural industry, and with adjustment of rural industrial structures and development of vegetable industry, the demand on vegetable production machinery is increasing day by day. Celery is a vegetable generally planted in many areas in China, and the traditional harvesting mode is to pull up the celery with roots manually and then put the celery orderly, so that the labor intensity is high and the harvesting efficiency is low. And the celery has larger root pieces, which is not beneficial to packaging and transportation, and the labor capacity is increased by the manual root cutting process. The manual picking occupies too much manpower, so that the production cost is increased, and the large-scale production of the celery is restricted.

Some designs which try to solve the celery harvesting are developed in recent years, but the operation effect of the celery harvesting machine cannot 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 machine utilization rate is low, and the celery harvesting machine is difficult to popularize and use. The search shows that the harvesting machine for celery aligned in rows disclosed in the chinese patent with application number 201721300909.4 can harvest, cut roots and collect celery, but the hand-held operation mode causes high labor intensity, low single-row harvesting efficiency and high requirement on the planting mode of celery. The celery which is aligned can only be harvested, and the machine adaptability is poor. The Chinese patent with application number 201920449672.9 discloses an automatic celery harvester, which uses the power of a tractor to realize self-propelled operation, but adopts the conveying mode of a front longitudinal conveying belt, a rear longitudinal conveying belt and a transverse conveying belt, and celery is easy to scatter when the celery is conveyed to the tail end for collection. Due to the structure of the header, the operation quality is poor when the celery with high planting density is harvested, and the working efficiency is low. Each cutting knife is driven by a respective hydraulic motor, so that the energy consumption is high, and the machine structure is complex. The celery harvester disclosed in the chinese patent with application number 200420087797.5 has a smart structure and is convenient to operate, but the single-row harvesting characteristic thereof causes low operation efficiency. The inclined angle of the conveying belt has poor clamping effect on the celery, and the cutting position of the cutting knife on the root is uncertain, so that the operation quality is poor, and extra processes can be added. The conveying and collecting device cannot achieve better ordered harvesting and collecting, and the operating mode of manual walking and walking leads to increased labor intensity.

Disclosure of Invention

Aiming at the problems, the invention provides a self-propelled shallow-digging root-cutting celery combine harvester which is ingenious in structure and high in mechanization degree, and through the harvester, seedling pulling, root cutting, ordered conveying, bundling and transportation of celery can be realized, so that the labor cost and the labor intensity are reduced, the celery harvesting efficiency is improved, and a guarantee is provided for large-scale production of celery.

The technical scheme of the invention is as follows: a self-propelled shallow digging and cutting celery combined harvester comprises a harvesting and cutting root 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 walking device and is positioned in front of the clamping and conveying device, and the clamping and conveying device is arranged at the front part of the chassis walking 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 rack, 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 harvester is characterized in that the digging blade is mounted below the front end of the frame, the screen is mounted behind the digging blade and hinged to the lower side of the frame, the cutting plate is mounted behind the screen, one end of the seedling dividing plate is located in front of the digging blade, the other end of the seedling dividing plate is mounted on the front side of the cutting plate, the first conveying roller is mounted at the front end of the frame, the second conveying roller is mounted at the rear end of the frame, the conveying belt is mounted on the first conveying roller and the second conveying roller, the seedling dividing plate and the conveying belt are mounted in parallel and alternate mode, a gap is reserved between the seedling dividing plate and the conveying belt, a plurality of plate-shaped protrusions 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 mounted below the through grooves in 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 copying wheel mechanism; the copying wheel mechanism comprises a copying 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 contour wheel is arranged on the wheel shaft, the supporting screw rod 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 rod.

Furthermore, the device also comprises a hydraulic rod and a hinge; 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 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 conveying roller frames; the device comprises a chassis, a first conveying roller, a second conveying roller, a clamping conveying belt, a fourth conveying roller, a flexible reel tooth, gears and gear meshes, wherein the first conveying roller and the second conveying roller are vertically arranged on the chassis in pairs, the fourth conveying roller and the fourth conveying roller are horizontally arranged on a conveying roller frame in pairs, the conveying roller frame is arranged on the chassis, the clamping conveying belt and the fourth conveying roller are arranged on the third conveying roller and the fourth conveying roller in pairs, the upper end of the third conveying roller is provided with the flexible reel tooth, the lower end of the third conveying roller is provided with the gears, and the gears of each group of third conveying rollers are meshed.

Furthermore, the flexible reel teeth are provided with two arc-shaped teeth which are arranged in central symmetry.

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

In the above 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 belt tensioning device is arranged on the chassis, the two-shaft gear box is arranged on the right of the third conveying roller, the universal joint is arranged above the two-shaft gear box, the three-shaft gear box is arranged at the rear part of the right side of the rack, the first crank connecting rod is arranged below the three-shaft gear box, and the second crank connecting rod is arranged at the front part of the right side of the rack. The power of the engine is transmitted to the two-shaft gear box and the three-shaft gear box, and the two-shaft gear box drives the universal joint to rotate and drives the paired third conveying rollers to rotate; an upper extension shaft of the three-shaft gear box drives a second conveying roller to rotate, and a lower extension shaft drives a cutting knife connecting rod to swing through a first crank connecting rod; the three-shaft gear box transmits power to the second crank connecting rod and drives the sieve to swing.

Compared with the prior art, the invention has the beneficial effects that: the celery root cutting machine is simple in structure, can keep a good and consistent vertical state in the conveying process, can realize celery seedling pulling, ordered conveying and root cutting, and is good in operation quality and capable of reducing labor cost compared with the existing underground root cutting technology. The celery harvesting and root cutting device is transferred to the clamping and conveying device, and the clamping and conveying device drops the celery into the celery receiving box, so that messy celery during conveying and collecting processes is avoided. According to the invention, the bundling workbench is arranged on the chassis, and celery in the vegetable receiving box is bundled and then placed in the vegetable bundling box, so that the integrated operation from seedling pulling to bundling and conveying is realized. The invention fully utilizes the space resources of the machine, leads the harvest and the bundling to be carried out simultaneously and saves the operation time. The invention has reasonable structure, and realizes the operation of the whole machine by using the power of the transmission device. The invention can adjust the height of the harvesting root cutting device and improve the operation quality. The profiling wheel can assist in adjusting the height of the harvesting root cutting device, improve the stability of the machine, buffer the impact of the ground on the machine and reduce the vibration.

Drawings

Fig. 1 is a side view of the self-propelled shallow-digging root-cutting celery combine harvester of the present invention.

Fig. 2 is a general structural schematic diagram of the self-propelled shallow-digging root-cutting celery combine harvester of the invention.

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

FIG. 4 is a bottom view of the harvesting root-cutting device of the present invention.

Fig. 5 is a schematic view of the structure of the earth-moving blade of the present invention.

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

Fig. 7 is a schematic diagram of the structure of the straw separating plate of the present invention.

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

Fig. 11 is a schematic view of the contour wheel assembly of the present invention.

Fig. 12 is a front view of the gripping and conveying device of the present invention.

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

FIG. 14 is a schematic view of a nip conveyor configuration of the present invention

FIG. 15 is a schematic view of the transmission of the present invention.

Wherein, 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 board; 109. cutting; 110. a cutter connecting rod; 111. a profiling wheel; 112. a wheel axle; 113. a support screw; 114. adjusting the nut; 115. a spring; 116 a hydraulic ram; 117. a hinge; 2. a clamping and conveying device; 201. a third conveying roller; 202. a fourth conveying roller; 203. clamping the conveyer belt; 204. flexible reel teeth; 205. a gear; 206. a conveying roller frame; 207. a vegetable receiving box; 3. a chassis running gear; 301. a chassis; 302. a first bundling workbench; 303. a second bundling workbench; 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. a second crank connecting rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and 2, a self-propelled shallow digging and cutting celery combine comprises a harvesting and 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 walking device 3 and is positioned in front of the clamping and conveying device 2, and the clamping and conveying device 2 is arranged at the front part of the chassis walking 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 to 11, the harvesting root-cutting device 1 includes a frame 101, a digging blade 102, a sieve 103, a dividing plate 104, a conveyor belt 105, a first conveyor roller 106, a second conveyor roller 107, a cutting plate 108, a cutter 109, a cutter link 110, a profile wheel 111, a wheel shaft 112, a support screw 113, an adjusting nut 114, a spring 115, a hydraulic rod 116, and a hinge 117, the digging blade 102 is installed below the front end of the frame 101, the sieve 103 is installed behind the digging blade 102 and hinged in the middle of the lower side of the frame 101, the cutting plate 108 is installed behind the sieve 103, the dividing plate 104 is installed on the upper side of the cutting plate 108, the cutter 109 is installed on the lower side of the cutting plate 108, the cutter link 110 is installed on the cutter 109, the first conveyor roller 106 is installed at the front end of the frame 101, the second conveyor roller 107 is installed at the rear end of the conveyor roller frame 101, the conveyor belt 105 is installed on the first conveyor roller 106 and the second conveyor roller 107, the dividing plates 104 and the conveyer belts 105 are alternately arranged in parallel, a gap is arranged between the dividing plates 104 and the conveyer belts 105, a plurality of plate-shaped bulges are arranged on the outer surface of the conveyer belts 105, a plurality of through grooves matched with the conveyer belts 105 are arranged on the cutting plate 108, and the cutting mechanism is arranged below the through grooves of the cutting plate 108; the wheel shaft 112 is installed at the lower side of the frame 101, the profile wheel 111 is installed on the wheel shaft 112, the supporting screw 113 is installed at the lower side of the frame 101 and on the wheel shaft 112, the adjusting nut 114 and the spring 115 are installed on the supporting screw 113, 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 116 is connected with the frame 101. The invention has reasonable structure, and realizes the operation of the whole machine by using the power of the engine. The height of the harvesting root cutting device is adjusted through the hinge 117 and the hydraulic rod 116, and the operation quality is improved. The spring 115 on the contour wheel 111 can assist in adjusting the height of the harvesting root cutting device, improve the stability of the machine, buffer the impact of the ground on the machine and reduce the vibration.

As shown in FIG. 5, the front end of the digging shovel 102 is a plurality of triangular pyramids, which are designed to break soil and facilitate seedling pulling.

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

As shown in fig. 11, the axle 112 and the supporting screw 113 are hinged to the frame 101, a through hole is provided in the middle section of the 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 adjustment nut 114 and spring 115 serve to define the position of the axle 112, and upon impact of the ground against the contour wheel 111, the axle 112 swings and compresses the spring 115, dampening the ground impact. The adjustment nut 114 is used to adjust the height of the profile wheel 111.

As shown in fig. 9 and 10, 5 trapezoidal grooves penetrating up and down are arranged in parallel on the cutting plate 108, and both ends of 5 cutters 109 are hinged on the cutting plate 108 and the cutter connecting rod 110. The trapezoidal groove that cutting board 108 runs through is used for permeating the celery root system, and the cutting action that wobbling cutting knife 109 and cutting board 108 formed cuts off the celery root system.

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, ordered conveying and root cutting. The digging shovel 102 with the triangular pyramid can crush soil and dig out celery, soil and impurities on roots, stems and leaves are removed by shaking of the sieve 103, and operation effect is guaranteed. 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 under-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 and conveying belt 203, a flexible reel tooth 204, a gear 205, a conveying roller frame 206 and a vegetable receiving box 207, the third conveying roller 201 is vertically installed on the chassis 301 in pairs, the fourth conveying roller 202 is horizontally installed on the conveying roller frame 206 in pairs, the third conveying roller 201 is installed on the chassis 301, the fourth conveying roller 202 is installed on the conveying roller frame 206, the conveying roller frame 206 is installed on the chassis 301, the clamping and conveying belt 203 is installed on the third conveying roller 201 and the fourth conveying roller 202, the flexible reel tooth 204 is installed at the upper end of the third conveying roller 201, the gear 205 is installed at the lower end of the third conveying roller 201, the gear 205 of each group of the third conveying rollers 201 is engaged, and the vegetable receiving box 207 is installed on the chassis 301.

As shown in fig. 12 to 14, the flexible reel teeth 204 are sleeved on the third conveying rollers 201, made of rubber with large elasticity, two teeth are formed in central symmetry and have a radian, and the two flexible reel teeth 204 on each pair of the third conveying rollers 201 are vertically installed. The third conveyor rollers 201 are arranged in pairs, and the lower end of each pair of third conveyor rollers 201 is provided with a meshing gear 205. The flexible reel teeth 204 are used for shifting celery conveyed by the conveying belt 105 of the harvesting root cutting device 1 to the clamping conveying belt 203, the posture of the clamping conveying belt 203 is twisted to change the posture of the celery from vertical to horizontal, 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 interior of the dish receiving box 207 is provided with 3 empty spaces for placing celery conveyed by different clamping conveyor belts 203, so as to ensure that the celery is placed in sequence without being scattered. The first bundling workbench 302 and the second bundling workbench 303 are used for manual riding and provide convenience for manual bundling work, and crawling ladders are arranged near the first bundling workbench 302 and the second bundling workbench 303 on the chassis 301.

The rotation of the flexible reel teeth 204 of the clamping and conveying device enables celery conveyed by the conveying belt 105 of the harvesting root cutting device to be transited to the clamping and conveying belt 203, the posture of the clamping and conveying belt 203 is twisted to change the posture of the celery from vertical to horizontal, the celery on the clamping and conveying belt 203 falls into different spaces of the dish receiving box 207, the celery is automatically placed in order, and messy celery in the conveying and collecting processes is avoided.

As shown in fig. 2, the chassis traveling device 3 includes a chassis 301, a first third bundling workbench 02, a second third bundling workbench 03, and a vegetable bundle box 304, the first bundling workbench 302, the second bundling workbench 303, and the vegetable bundle box 304 are mounted on the chassis 301, the first bundling workbench 302 is disposed on the right side of the vegetable receiving box 207, the second bundling workbench 303 is disposed behind the vegetable receiving box 207, and the vegetable bundle box 304 is disposed on the right side of the third bundling workbench 03. According to the invention, two bundling workbenches are arranged on the chassis 301 and are distributed on the rear side and the right side of the vegetable receiving box. When the celery picking and bundling integrated operation platform works, the celery in the celery receiving box is bundled and then placed in the celery bundling box by manpower, and the integrated operation from seedling pulling to bundling and conveying is realized. The structure makes full use of the space resources of the machine, so that the harvesting and the bundling are carried out simultaneously, and the operation time is saved.

As shown in fig. 15, the transmission 4 includes a motor 401, a belt tensioner 402, a two-shaft gear box 403, a universal joint 404, a three-shaft gear box 405, a first crank link 406, and a second crank link 407, the motor 401 is disposed on the chassis 301, the belt tensioner 402 is mounted in front of the motor 401, the two-shaft gear box 403 is mounted to the right of the third conveyor roller 201, the universal joint 404 is mounted above the two-shaft gear box 403, the three-shaft gear box 405 is mounted at the rear right side of the machine frame 101, the first crank link 406 is mounted below the three-shaft gear box 405, and the second crank link 407 is mounted at the front right side of the machine frame 101. The power of the engine 401 is transmitted to the two-axis gear box 403 and the three-axis gear box 405 through belt transmission, the two-axis gear box 403 drives the 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 the gear 205; an upper extending shaft of the three-shaft gear box 405 drives the second conveying roller 107 to rotate through belt transmission, and a lower extending shaft drives the cutting knife connecting rod 110 to swing through the first crank connecting rod 406; the three-axis gearbox 405 transmits power to the second crank link 407 through belt drive and drives the screen 103 to swing.

When the harvesting and root cutting device is used specifically, 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 then the height of the profiling wheel 111 is adjusted through the adjusting nut 114, so that the soil penetrating depth of the digging shovel 102 is moderate. During the forward operation of the machine, the grass dividing plate 104 divides the celery to be harvested into rows, the digging shovel 102 shovels the celery and soil, and the plate-shaped bulges on the rotating conveying belt 105 divide the rows of the celery into single or a few and convey the celery backwards. In the transportation process, the jittering sieve 103 makes soil and impurities on the root system of celery fall to the ground through the sieve 103, when the celery is transported backwards along the trapezoidal groove on the cutting board 108, the root system stretches downwards through the trapezoidal groove, the cutting knife connecting rod 110 drives the cutting knife 109 to swing, and the root system of the celery is cut off through shearing action. Celery is conveyed to the rear end of the harvesting root cutting device 1 by the conveying belt 105, the flexible reel teeth 204 are rotated to reel the celery to the middle of two third conveying rollers 201 with opposite rotating directions, the celery is clamped and conveyed backwards by two clamping conveying belts 203 with opposite rotating directions, the posture of the clamping conveying belts 203 is twisted to change the posture of the celery from vertical to horizontal, and then the celery falls into a blank space inside the dish receiving box 207. The celery is bundled on the first bundling workbench 302 and the second bundling workbench 303 by a human and then placed in the vegetable bundling box 304. After a certain amount of work is completed, the machine arrives at the designated place to unload the vegetable bundles.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A self-propelled shallow digging and cutting celery combined harvester is characterized by comprising a harvesting and cutting root 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 walking device (3) and is positioned in front of the clamping and conveying device (2), and the clamping and conveying device (2) is arranged at the front part of the chassis walking 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).

2. The self-propelled shallow-digging root-cutting celery combine harvester according to claim 1, characterized in that the harvesting root-cutting device (1) comprises a frame (101), a digging shovel (102), a sieve (103), a straw-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 digging shovel (102) is arranged below the front end of the rack (101), the screen (103) is arranged behind the digging shovel (102) and hinged to the lower side of the rack (101), the cutting plate (108) is arranged behind the screen (103), one end of the seedling dividing plate (104) is positioned in front of the 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 rack (101), the second conveying roller (107) is arranged at the rear end of the rack (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 plate-shaped bulges are arranged on the outer surface of the conveying belt (105), and a plurality of through grooves matched with the conveying belt (105) are arranged on the cutting plate (108), the cutting mechanism is mounted below the through slot of the cutting plate (108).

3. The self-propelled shallow-uprooted-root celery combine harvester according to claim 2, wherein the cutting mechanism comprises a cutter (109) and a cutter link (110); the cutting knife (109) is arranged below the through groove of the cutting plate (108), and the cutting knife connecting rod (110) is arranged on the cutting knife (109) and connected with the transmission device (4).

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

5. The self-propelled shallow-digging root-cutting celery combine harvester according to claim 2, further comprising a hydraulic rod (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).

6. The self-propelled shallow digging root and celery combine harvester according to claim 2, wherein the front end of the digging shovel (102) is provided with a plurality of triangular pyramids.

7. The self-propelled shallow-digging root-cutting celery combine harvester according to claim 1, characterized in that 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), a flexible reel tooth (204), a gear (205) and a conveying roller frame (206);

two liang vertical installations on chassis (301) of third conveying roller (201), two liang horizontal installations on conveying roller frame (206) of fourth conveying roller (202), conveying roller frame (206) are installed on chassis (301), two liang of centre gripping conveyer belt (203) are a set of installation on third conveying roller (201) and fourth conveying roller (202), flexible reel tooth (204) are installed to the upper end of third conveying roller (201), and gear (205) are installed to the lower extreme of third conveying roller (201), and gear (205) the meshing of every group third conveying roller (201).

8. The self-propelled shallow-digging root-cutting celery combine harvester according to claim 7, characterized in that the flexible reel teeth (204) are provided with two arc-shaped teeth arranged in central symmetry.

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

10. The self-propelled shallow-excavation root-cutting celery combine harvester according to claim 1, characterized in that 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 connecting rod (406) and a second crank connecting rod (407);

the belt tensioning device is characterized in that the engine (401) is arranged on the chassis (301), the belt tensioning device (402) is arranged in front of the engine (401), the two-shaft gear box (403) is arranged on the right side of the third conveying roller (201), the universal joint (404) is arranged above the two-shaft gear box (403), the three-shaft gear box (405) is arranged at the rear part of the right side of the rack (101), the first crank connecting rod (406) is arranged below the three-shaft gear box (405), and the second crank connecting rod (407) is arranged at the front part of the right side of the rack (101). The power of the engine (401) is transmitted to the two-axis gear box (403) and the three-axis gear box (405), the two-axis gear box (403) drives the universal joint (404) to rotate, and the paired third conveying rollers (201) are driven to rotate; an upper extending shaft of the three-shaft gear box (405) drives the second conveying roller (107) to rotate, and a lower extending shaft drives the cutting knife connecting rod (110) to swing through the first crank connecting rod (406); the three-shaft gear box (405) transmits power to the second crank connecting rod (407) and drives the sieve (103) to swing.