Self-propelled deep-rooted crop combine harvester

Abstract

The present invention relates to a self-propelled deep-rooted tuber crop combine harvester, comprising a vibrating excavation component, an excavation component lifting device, a transport and attachment platform, a key screen separation component, a separation component lifting device, and a multi-stage flexible transport collection device. The excavation component lifting device and the separation component lifting device are fixed to the transport and attachment platform. The vibrating excavation component is vertically lifted and lowered by the excavation component lifting device, and the key screen separation component is driven by the front and rear swing arms of the separation component lifting device to swing and lift as a whole. The working state of the harvester is divided into six stages: mobile transportation, preparation for burial, burial of the excavation component, normal operation, excavation component unburial, and component reset. The movement and position of the vibrating excavation component and the key screen separation component in each stage are controlled according to a certain plan. Based on the principles of vibration-driven drag-reducing excavation and staggered vibration separation, this invention utilizes a vertical lift configuration for the vibrating excavation component and a variable-position swing lift configuration for the key-screen separation component. This improves the stress conditions on the excavation components, meeting the requirements for excavating and harvesting deep-rooted crops. It simplifies the structural components for root-soil separation and lifting and transport, and optimizes their spatial layout. This enables vibration-driven drag-reducing excavation of deep-rooted stem crops, efficient root-soil separation with large soil volumes, and low-loss throwing and transport of long stems, providing a new solution for the combined harvesting of deep-rooted stem crops such as licorice. This invention is applicable to the harvesting of a variety of root crops and has promising prospects for widespread application.

Description

Technical Field

[0001] The invention relates to the technical field of root crop harvesting in agricultural machinery, in particular to a self-propelled deep root crop combine harvester. Background Art

[0002] Root crops are generally categorized by harvesting depth as shallow (5-20 cm), medium (20-40 cm), and deep (40-60 cm and above). Root crop harvesting methods include manual harvesting (using simple tools), semi-mechanical segmented harvesting (mechanical excavation followed by manual separation and collection), and combined harvesting (mechanical excavation, root soil separation, and collection for transportation) all in one operation. Currently, research on suspended root crop harvesters primarily focused on segmented harvesting is widespread. These harvesters typically utilize excavation components such as shovels and separation components such as shaking chains. Some machines incorporate one or more conveyor chains behind the shaking chains to stack or load the roots.

[0003] Self-propelled combine harvesters are mostly used for harvesting shallow-rooted and some medium-length root crops. For example, a mid-lift self-propelled potato combine harvester (CN116138023A) uses a harvesting device, a lifting device, a sorting device, a silo device and other components to complete the combined operations of potato harvesting, lifting and transportation, sorting and siloing. By optimizing the structural layout, the machine model is made more compact to meet the potato harvesting needs of small plots in hilly and mountainous areas; a self-propelled harvester (CN112243673A) is mainly composed of a picking platform assembly, a conveyor, a sorting platform, a self-unloading device, etc., which is used for harvesting and picking root crops such as potatoes, solving the problem of manual picking; a Chinese medicinal material combine harvester (CN116806522A) is mainly composed of a crawler chassis, It is composed of a harvesting mechanism, a shaking and separating mechanism, a conveying mechanism, a separating roller, etc., to realize the harvesting operation of root and tuber medicinal materials; the Chinese medicinal material combine harvester (CN202210311487.X) includes a traction device, a primary screening and feeding soil crushing device, a secondary screening and feeding device, a lifting and conveying device with adjustable elevation angle, etc., to solve the problems of low efficiency, drug leakage and serious damage in manual picking of medicinal materials; a fully automatic cassava combine harvester (CN201911214404.X) realizes the combined harvesting of cassava through an excavator and a lateral conveying and loading device connected to the rear end of the excavator; a traction-type four-row beet harvester (CN202010847299.X) adopts an excavating device and a multi-stage conveying system to realize the combined harvesting of beets.

[0004] A comprehensive analysis reveals that existing self-propelled combine harvesters have forward-positioned excavation components (located in front of the frame) and primarily rely on a rotary lifting mechanism (using hydraulic cylinders to push and pull the harvesting components around a point on the frame). The components that contact the soil are located relatively far from the frame and operate under the thrust of the frame. This results in a long machine body, poor digging component support, and shallow digging depths. Components for root-soil separation and lifting and transport primarily utilize multi-stage, modular lifting chains, resulting in long transport distances and a complex structure. Limited by their operating principles and structural layout, existing self-propelled combine harvesters typically have a harvesting depth of less than 30 cm, making them unable to meet the demands of harvesting deep-rooted crops like licorice. Summary of the Invention

[0005] In view of the defects existing in the prior art, the object of the present invention is to provide a self-propelled deep-rooted crop combine harvester, comprising a vibrating excavation component, an excavation component lifting device, a carrying and hooking platform, a key screen separation component, a separation component lifting device, and a multi-stage flexible collection and transportation device;

[0006] The vibrating excavation component is arranged in the forward direction of the harvester, and includes a plurality of excavation units and a vibration unit; the vibration unit drives the excavation units to vibrate in a staggered manner through excitation;

[0007] The excavation component lifting device is fixed on the carrying and hooking platform and is slidably connected to the vibrating excavation component to control the rise and fall of the excavation unit;

[0008] The separation component lifting device is fixed on the carrying and hanging platform and is rotatably connected to the key screen separation component shaft. The key screen separation component is driven by the separation component lifting device to swing and lift as a whole;

[0009] The key-screen separation component includes a plurality of key-screen units and two groups of front and rear vibration units; the plurality of key-screen units are driven by the two groups of front and rear vibration units to drive two adjacent groups to vibrate alternately;

[0010] The multi-stage flexible collection and transportation device is arranged on one side of the harvester, and the collected crops are sent in through the key screen separation component and sent to the collection device through the upward and horizontal transmission devices.

[0011] Based on the above scheme, the vibrating excavation component includes an excavation excitation device, a main shovel frame, an excavation shovel grid, a hydraulic motor, a speed-increasing gearbox, a guide column inclined beam, a lifting guide column, a guide column crossbeam, a guide column roller shaft, and a guide column hydraulic cylinder lower hanging ear; the excavation excitation device has an eccentric shaft sleeve inside, which drives the excavation shovel grid groups to vibrate alternately when rotating; the lifting guide column is fixedly connected to the main shovel frame, and the guide column inclined beam and guide column crossbeam are fixedly connected between the guide column and the shovel frame; each lifting guide column is installed with 8 sets of guide column roller shafts;

[0012] The vibrating excavation component is connected to the lifting guide rail of the excavation component lifting device through a lifting guide column. The vibrating excavation component is driven by the excavation component lifting device to vertically lift and lower. The vertical lifting range is 0 to 1050 mm. The excitation frequency of the excavation excitation device is 6 to 12 Hz.

[0013] Based on the above scheme, the excavation component lifting device includes a lifting guide rail, a guide rail mounting beam, a guide column hydraulic cylinder upper lug, a guide column hydraulic cylinder, a lifting platform mounting frame, a lifting platform reinforcement beam, a key screen front cylinder mounting seat, and a lifting wheel pressure plate; one end of the guide column hydraulic cylinder is hinged to the guide column hydraulic cylinder lower lug, and the other end is hinged to the guide column hydraulic cylinder upper lug; 8 groups of guide column roller shafts are embedded in the lifting guide rail, and the lifting guide column moves vertically along the guide rail under the action of the guide column hydraulic cylinder; the lifting platform mounting frame of the excavation component lifting device is fixedly connected to the excavation component hanging frame of the carrying hanging platform.

[0014] Based on the above scheme, the transport and attachment platform includes a crawler chassis, a cab, an engine, a guide column frame limiting wheel, an excavation component attachment frame, a separation component attachment frame, a hydraulic power system, and a collection and transportation device attachment frame; the bottom of the lifting device is fixedly connected to the excavation component attachment frame.

[0015] Based on the above scheme, the key screen separation component includes a front separation excitation device, a front main shaft, a toothed separation key screen, a separation screen side plate, a rear main shaft, and a rear separation excitation device; the front main shaft and the rear main shaft are installed between the two separation screen side plates and fixed with bolts to the end covers; the toothed separation key screen is hinged to the front separation excitation device and the rear separation excitation device; four groups of front separation excitation devices are installed on the front main shaft at equal intervals, and four groups of rear separation excitation devices are installed on the rear main shaft at equal intervals. The phase angles of the eccentric bushings inside adjacent excitation devices are staggered by 180 degrees, and the two adjacent groups of separation key screens vibrate in an alternating manner. The excitation frequency of the front separation excitation device and the rear separation excitation device is 6 to 12 Hz.

[0016] On the basis of the above scheme, the separation component lifting device includes a front lifting beam, a lifting beam roller shaft, a front swing bar, a roller limit plate, a boom mounting plate, a front hydraulic cylinder, a rear hydraulic cylinder mounting seat, a rear hydraulic cylinder, a rear swing bar, and a rear swing bar mounting block; the two ends of the front hydraulic cylinder are respectively hinged to the middle hanging ear of the front lifting beam and the key screen front cylinder mounting seat; the two ends of the front swing bar are respectively hinged to the side hanging ears of the front lifting beam and the front end of the separation screen side plate; there are 5 sets of lifting beam roller shafts on each side of the front lifting beam. When the front hydraulic cylinder is extended and retracted, multiple sets of lifting beam roller shafts The two hydraulic cylinders act together on the lifting wheel pressure plate, causing the front lifting beam to move vertically. The front hydraulic cylinder extends or retracts, driving the front swing arm downward or upward and rotating the shaft. The rear hydraulic cylinder mounting seat and the rear swing arm mounting block are both fixedly connected to the separation component mounting frame. The rear hydraulic cylinder is hinged to the rear hydraulic cylinder mounting seat and the rear swing arm respectively. The rear swing arm is hinged to the upper part of the rear swing arm mounting block and the rear end of the separation screen side plate respectively. The contraction or extension of the rear hydraulic cylinder drives the rear swing arm shaft to rotate. Under the combined action of the front and rear swing arms, the key screen separation component as a whole changes posture and swings down or up. When the front hydraulic cylinder is extended and retracted, the distance between the front lifting beam and the key screen front cylinder mounting seat can be adjusted within a range of 0 to 310 mm. The telescopic adjustment range of the rear hydraulic cylinder is 0 to 800 mm.

[0017] On the basis of the above scheme, the multi-stage flexible transport collection device includes a longitudinal transport belt, an oblique transport belt, a transverse transport belt, and a material collection box; each component of the multi-stage flexible transport collection device is fixedly connected to the transport collection and transportation hanging platform.

[0018] Beneficial effects of the present invention:

[0019] Based on the principles of vibration-driven drag-reducing excavation and staggered vibration separation, this invention utilizes a vertical lift configuration for the vibrating excavation component and a variable-position swing lift configuration for the key-screen separation component. This improves the force applied to the excavation component to meet the requirements for excavating and harvesting deep-rooted crops. It also simplifies the structural components for root-soil separation and lifting and transport, optimizing their spatial layout. This enables vibration-driven drag-reducing excavation of deep-rooted stem crops, efficient root-soil separation with large soil volumes, and low-loss throwing and transport of long stems, providing a new solution for the combined harvesting of deep-rooted stem crops such as licorice. This invention is applicable to the harvesting of a variety of root crops and has promising prospects for widespread application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention has the following accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the operating principle of the combine harvester of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the vibration excavation component of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the excavation component lifting device of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the carrying and hooking platform of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the key screen separation component and the separation component lifting device of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the multi-stage flexible transportation device of the present invention.

[0028] Figure: 1. Vibratory excavation component, 101. Excavation excitation device, 102. Main shovel frame, 103. Excavation shovel grid, 104. Hydraulic motor, 105. Speed ​​increase gearbox, 106. Guide column inclined beam, 107. Lifting guide column, 108. Guide column crossbeam, 109. Guide column roller shaft, 110. Guide column hydraulic cylinder lower bracket, 2. Excavation component lifting device, 201. Lifting guide rail, 202. Guide rail mounting crossbeam, 203. Guide column hydraulic cylinder upper bracket, 204. Guide column hydraulic cylinder, 205. Lifting platform mounting frame, 206. Lifting platform reinforcement beam, 207. Key screen front cylinder mounting seat, 208. Lifting wheel pressure plate, 3. Carrying attachment platform, 301. Crawler chassis, 302. Cab, 303. Diesel engine, 304. Guide column frame limiting wheel, 305. Excavation component attachment frame , 306. Separation component mounting frame, 307. Hydraulic power system, 308. Collecting and transporting device mounting frame, 4. Key screen separation component, 401. Front separation excitation device, 402. Front main shaft, 403. Toothed separation key screen, 404. Separation screen side plate, 405. Rear main shaft, 406. Rear separation excitation device, 5. Separation component lifting device, 501. Front lifting beam, 502. Lifting beam roller shaft, 503. Front swing arm, 504. Roller limit plate, 505. Boom mounting plate, 506. Front hydraulic cylinder, 507. Rear hydraulic cylinder mounting seat, 508. Rear hydraulic cylinder, 509. Rear swing arm, 510. Rear swing arm mounting block, 6. Multi-stage flexible collecting and transporting device, 601. Longitudinal transport belt, 602. Oblique transport belt, 603 Transverse transport belt, 604. Aggregate box. DETAILED DESCRIPTION

[0029] The following combination Figures 1 to 7 The present invention is described in further detail.

[0030] like Figure 1As shown, a self-propelled deep-rooted crop combine harvester includes a vibrating excavation component 1, an excavation component lifting device 2, a carrying and hanging platform 3, a key screen separation component 4, a separation component lifting device 5, and a multi-stage flexible collection and transportation device 6; the excavation component lifting device 2 and the separation component lifting device 5 are fixed on the carrying and hanging platform 3, the vibrating excavation component 1 is vertically lifted and lowered by the action of the excavation component lifting device 2, and the key screen separation component 4 is driven by the front swing arm 503 and the rear swing arm 509 of the separation component lifting device 5 to change its posture and swing and lift as a whole.

[0031] The operation principle of the combine harvester of the present invention is shown as follows: Figure 2 As shown, its working state is divided into six stages: moving and transporting, preparing for burial, burial of excavation components, normal operation, excavation of excavation components, and component reset. The motion and position control scheme of the vibrating excavation component 1 and the key screen separation component 4 in each stage is as follows:

[0032] ① During mobile transportation: the vibrating excavation component 1 is in the highest position under the action of the excavation component lifting device 2, and the key screen separation component 4 is in the highest position under the action of the separation component lifting device 5 and has sufficient ground clearance.

[0033] ② When preparing to bury the earth: the vibrating excavation component 1 and the key screen separation component 4 descend in sequence; the vibrating excavation component 1 is driven by the guide column hydraulic cylinder 204 of the excavation component lifting device 2 to descend to the ground surface, and then the front hydraulic cylinder 506 of the separation component lifting device 5 extends to drive the front swing arm 503 to move downward and rotate clockwise around point A, and the rear hydraulic cylinder 508 synchronously contracts to drive the rear swing arm 509 to move counterclockwise around point E. Under the combined action of the front swing arm 503 and the rear swing arm 509, the key screen separation component 4 changes its posture as a whole and swings down; when the front end mark point N of the key screen separation component 4 reaches below the rear end mark point M of the vibrating excavation component 1, the vibrating excavation component 1 begins to bury the earth.

[0034] ③ When the excavation component is buried in the ground, the vibrating excavation component 1 and the key screen separation component 4 descend synchronously. The vibrating excavation component 1 is driven by the guide column hydraulic cylinder 204 of the excavation component lifting device 2 to descend to the harvesting depth. At the same time, the front hydraulic cylinder 506 and the rear hydraulic cylinder 508 of the separation component lifting device 5 extend and retract synchronously or alternately. Under the combined action of the front swing arm 503 and the rear swing arm 509, the key screen separation component 4 changes its posture as a whole and swings down. The front end mark point N of the key screen separation component 4 is always below the tail end mark point M of the vibrating excavation component 1.

[0035] ④ During normal operation, the relative positions of the vibrating excavation component 1 and the key screen separation component 4 remain unchanged until the work is completed.

[0036] ⑤ When the excavation component is unearthed, the vibrating excavation component 1 and the key screen separation component 4 are lifted synchronously. The vibrating excavation component 1 is lifted to the ground surface (the shovel tip is unearthed) by the guide column hydraulic cylinder 204 of the excavation component lifting device 2. At the same time, the front hydraulic cylinder 506 and the rear hydraulic cylinder 508 of the separation component lifting device 5 are contracted and extended synchronously or alternately. Under the combined action of the front swing arm 503 and the rear swing arm 509, the key screen separation component 4 changes its posture as a whole and swings and lifts. The front end mark point N of the key screen separation component 4 is always below the tail end mark point M of the vibrating excavation component 1.

[0037] ⑥ When the components are reset, the vibrating excavation component 1 is lifted to the highest position by the excavation component lifting device 2, and the key screen separation component 4 is lifted to the highest position by the separation component lifting device 5, meeting the movement and transportation conditions.

[0038] like Figure 3 As shown, the vibratory excavation unit 1 includes an excavation excitation device 101, a main shovel frame 102, an excavation shovel grid 103, a hydraulic motor 104, a speed-increasing gearbox 105, a guide column inclined beam 106, a lifting guide column 107, a guide column crossbeam 108, a guide column roller shaft 109, and a guide column hydraulic cylinder lower bracket 110. The excavation excitation device 101 contains an eccentric bushing, which, when rotated, drives the excavation shovel grids 103 to vibrate alternately. The lifting guide columns 107 are welded to the main shovel frame 102, with the guide column inclined beam 106 and guide column crossbeam 108 welded between the guide columns and the shovel frame. Eight sets of guide column roller shafts 109 are mounted on each lifting guide column 107. The vibratory excavation unit 1 is connected to the lifting guide rails 201 of the excavation unit lifting device 2 via the lifting guide columns 107. Driven by the excavation unit lifting device 2, the vibratory excavation unit 1 is raised and lowered vertically, with a vertical lift range of 0 to 1050 mm. The excitation frequency of the excavation excitation device 101 is 6 to 12 Hz.

[0039] like Figure 4 As shown, the excavation component lifting device 2 includes a lifting guide rail 201, a guide rail mounting crossbeam 202, an upper lug 203 for a guide column hydraulic cylinder, a guide column hydraulic cylinder 204, a lifting platform mounting frame 205, a lifting platform reinforcement beam 206, a key screen front cylinder mounting base 207, and a lifting wheel pressure plate 208. One end of the guide column hydraulic cylinder 204 is hinged to the lower lug 110 of the guide column hydraulic cylinder, and the other end is hinged to the upper lug 203 of the guide column hydraulic cylinder. Eight sets of guide column roller shafts 109 are embedded in the lifting guide rail 201. The lifting guide column 107 moves vertically along the guide rail under the action of the guide column hydraulic cylinder 204. The lifting platform mounting frame 205 of the excavation component lifting device 2 is welded and fixed to the excavation component mounting frame 305 of the carrier mounting platform 3.

[0040] like Figure 5As shown, the transport attachment platform 3 includes a crawler chassis 301, a cab 302, a diesel engine 303, a guide column frame limiting wheel 304, an excavation component mounting frame 305, a separation component mounting frame 306, a hydraulic power system 307, and a collection and transportation device mounting frame 308; the bottom of the lifting platform mounting frame 205 is welded to the excavation component mounting frame 305; during operation, the guide column frame limiting wheel 304 directly supports the lifting guide column 107 to increase its structural strength.

[0041] like Figure 6As shown, the key screen separation component 4 includes a front separation excitation device 401, a front main shaft 402, a toothed separation key screen 403, a separation screen side plate 404, a rear main shaft 405, and a rear separation excitation device 406; the front main shaft 402 and the rear main shaft 405 are installed between the two separation screen side plates 404 and fixed with bolts to the end covers; the toothed separation key screen 403 is hinged to the front separation excitation device 401 and the rear separation excitation device 406; four groups of front separation excitation devices 401 are installed on the front main shaft 402 at equal intervals, and four groups of rear separation excitation devices 406 are installed on the rear main shaft 405 at equal intervals. The phase angles of the eccentric bushings inside adjacent excitation devices are staggered by 180 degrees, and the two adjacent groups of separation key screens vibrate in an alternating manner. The excitation frequency of the front separation excitation device 401 and the rear separation excitation device 406 is 6 to 12 Hz. The separation component lifting device 5 includes a front lifting beam 501, a lifting beam roller shaft 502, a front swing arm 503, a roller limit plate 504, a boom mounting plate 505, a front hydraulic cylinder 506, a rear hydraulic cylinder mounting seat 507, a rear hydraulic cylinder 508, a rear swing arm 509, and a rear swing arm mounting block 510. The two ends of the front hydraulic cylinder 506 are respectively hinged to the middle hanging ear of the front lifting beam 501 and the key screen front cylinder mounting seat 207; the two ends of the front swing arm 503 are respectively hinged to the side hanging ears of the front lifting beam 501 and the front end point B of the separation screen side plate 404; there are 5 groups of lifting beam roller shafts 502 on both sides of the front lifting beam 501. When the front hydraulic cylinder 506 is extended or retracted, multiple groups of lifting beam roller shafts 502 act together on the lifting wheel pressure plate 208 to make the front lifting beam 501 move vertically. The extension / retraction of 506 drives the front swing arm 503 downward / upward and rotates about point A. The rear hydraulic cylinder mounting base 507 and the rear swing arm mounting block 510 are welded to the separation component mounting bracket 306. The rear hydraulic cylinder 508 is hinged to the rear hydraulic cylinder mounting base 507 and the rear swing arm 509, respectively. The rear swing arm 509 is hinged to point E above the rear swing arm mounting block 510 and point F at the rear end of the separation screen side plate 404. The contraction / extension of the rear hydraulic cylinder 508 drives the rear swing arm 509 to rotate about point E. Under the combined action of the front swing arm 503 and the rear swing arm 509, the key screen separation component 4 changes its posture and swings downward / upward. When the front hydraulic cylinder 506 is extended and retracted, the distance between the front lifting beam 501 and the key screen front cylinder mounting base 207 is adjustable from 0 to 310 mm. The telescopic adjustment range of the rear hydraulic cylinder 508 is 0 to 800 mm.

[0042] like Figure 7 As shown, the multi-stage flexible collection and transport device 6 includes a longitudinal conveyor belt 601, a diagonal conveyor belt 602, a transverse conveyor belt 603, and a collection bin 604. Each component of the multi-stage flexible collection and transport device is bolted to the collection and transport device mounting frame 308. The collected crops are fed through the key-screen separation component 4 and then transported to the collection bin 604 via the longitudinal conveyor belt 601, the diagonal conveyor belt 602, and the transverse conveyor belt 603.

[0043] The above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the essence and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

[0044] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A self-propelled deep root crop combine harvester, characterized in that: It includes a vibrating excavation component (1), an excavation component lifting device (2), a carrying and hooking platform (3), a key screen separation component (4), a separation component lifting device (5), and a multi-stage flexible collection and transportation device (6); The vibrating excavation component (1) is arranged in the forward direction of the harvester and comprises a plurality of excavation units and a vibration unit; the vibration unit drives the excavation units to vibrate in a staggered manner through an excitation method; The excavation component lifting device (2) is fixed on the carrying and hooking platform (3), and is slidably connected to the vibrating excavation component (1), and is used to control the rise and fall of the excavation unit; The separation component lifting device (5) is fixed on the carrying and hanging platform (3) and is rotatably connected to the key screen separation component (4). The key screen separation component (4) is driven by the separation component lifting device (5) to swing and lift as a whole; The key screen separation component (4) comprises a plurality of key screen units and two groups of front and rear vibration units; the plurality of key screen units are driven by the two groups of front and rear vibration units to vibrate in an alternating manner between two adjacent groups; The multi-stage flexible collection and transportation device (6) is arranged on one side of the harvester, and the collected crops are sent in through the key screen separation component (4) and sent to the collection device through the upward and horizontal transmission devices; The vibrating excavation component (1) comprises an excavation vibration device (101), a main shovel frame (102), an excavation shovel grid (103), a hydraulic motor (104), a speed increasing gearbox (105), a guide column inclined beam (106), a lifting guide column (107), a guide column cross beam (108), a guide column roller shaft (109), and a guide column hydraulic cylinder lower hanging ear (110); the excavation vibration device (101) has an eccentric shaft sleeve inside, which drives the excavation shovel grid (103) to vibrate alternately when rotating; the lifting guide column (107) is fixedly connected to the main shovel frame (102), and the guide column inclined beam (106) and the guide column cross beam (108) are fixedly connected between the guide column and the shovel frame; and each lifting guide column (107) is equipped with 8 groups of guide column roller shafts (109); The excavation component lifting device (2) comprises a lifting guide rail (201), a guide rail mounting crossbeam (202), a guide column hydraulic cylinder upper hanging ear (203), a guide column hydraulic cylinder (204), a lifting platform mounting frame (205), a lifting platform reinforcement beam (206), a key screen front cylinder mounting seat (207), and a lifting wheel pressure plate (208); one end of the guide column hydraulic cylinder (204) is hinged to the guide column hydraulic cylinder lower hanging ear (110), and the other end is hinged to the guide column hydraulic cylinder upper hanging ear (203); 8 groups of guide column roller shafts (109) are embedded in the lifting guide rail (201), and the lifting guide column (107) moves vertically along the guide rail under the action of the guide column hydraulic cylinder (204); the lifting platform mounting frame (205) of the excavation component lifting device (2) is fixedly connected to the excavation component hanging frame (305) of the carrying hanging platform (3).

2. The self-propelled deep-rooted crop combine harvester according to claim 1, characterized in that: The vibrating excavation component (1) is connected to the lifting guide rail (201) of the excavation component lifting device (2) via a lifting guide column (107), and the vibrating excavation component (1) is vertically lifted and lowered under the drive of the excavation component lifting device (2).

3. The self-propelled deep-rooted crop combine harvester according to claim 2, characterized in that: The vertical lifting range is 0-1050 mm; the excitation frequency of the excavation excitation device (101) is 6-12 Hz.

4. The self-propelled deep-rooted crop combine harvester according to claim 1, characterized in that: The transporting and hooking platform (3) comprises a crawler chassis (301), a cab (302), an engine (303), a guide column frame limiting wheel (304), an excavating component hooking frame (305), a separating component hooking frame (306), a hydraulic power system (307), and a transporting device hooking frame (308); the bottom of the lifting device (2) is fixedly connected to the excavating component hooking frame (305).

5. The self-propelled deep-rooted crop combine harvester according to claim 1, characterized in that: The key screen separation component (4) comprises a front separation excitation device (401), a front main shaft (402), a toothed separation key screen (403), a separation screen side plate (404), a rear main shaft (405), and a rear separation excitation device (406); the front main shaft (402) and the rear main shaft (405) are installed between two separation screen side plates (404) and fixed by bolting end covers; the toothed separation key screen (403) is hinged to the front separation excitation device (401) and the rear separation excitation device (406); four groups of front separation excitation devices (401) are respectively installed on the front main shaft (402) at equal intervals, and four groups of rear separation excitation devices (406) are respectively installed on the rear main shaft (405) at equal intervals, and the phase angles of the eccentric bushings inside adjacent excitation devices are staggered by 180 degrees, so that two adjacent groups of separation key screens vibrate in an alternating manner.

6. The self-propelled deep-rooted crop combine harvester according to claim 5, characterized in that: The excitation frequencies of the front separation excitation device (401) and the rear separation excitation device (406) are 6-12 Hz.

7. The self-propelled deep-rooted crop combine harvester according to claim 4, characterized in that: The separation component lifting device (5) comprises a front lifting beam (501), a lifting beam roller shaft (502), a front swing rod (503), a roller limit plate (504), a boom mounting plate (505), a front hydraulic cylinder (506), a rear hydraulic cylinder mounting seat (507), a rear hydraulic cylinder (508), a rear swing rod (509), and a rear swing rod mounting block (510); the two ends of the front hydraulic cylinder (506) are respectively hinged to the middle hanging ear of the front lifting beam (501) and the key screen front cylinder mounting seat (207); the two ends of the front swing rod (503) are respectively hinged to the side hanging ears of the front lifting beam (501) and the front end of the separation screen side plate (404); there are five sets of lifting beam roller shafts (502) on both sides of the front lifting beam (501); when the front hydraulic cylinder (506) is extended or retracted, the multiple sets of lifting beam roller shafts (509) are hinged to the front lifting beam (501) and the front lifting beam (501 ... 2) act together on the lifting wheel pressure plate (208), so that the front lifting beam (501) moves vertically, and the front hydraulic cylinder (506) extends or contracts to drive the front swing rod (503) to move downward or upward and rotate the axis; the rear hydraulic cylinder mounting seat (507) and the rear swing rod mounting block (510) are fixedly connected to the separation component hanging frame (306); the rear hydraulic cylinder (508) is hinged to the rear hydraulic cylinder mounting seat (507) and the rear swing rod (509) respectively; the rear swing rod (509) is hinged to the upper part of the rear swing rod mounting block (510) and the rear end of the separation screen side plate (404) respectively; the rear hydraulic cylinder (508) contracts or extends to drive the rear swing rod (509) to rotate the axis; under the combined action of the front swing rod (503) and the rear swing rod (509), the key screen separation component (4) changes its posture as a whole and swings downward or upward.

8. The self-propelled deep-rooted crop combine harvester according to claim 7, characterized in that: When the front hydraulic cylinder (506) is in telescopic operation, the distance between the front lifting beam (501) and the key screen front cylinder mounting seat (207) is adjustable in a range of 0 to 310 mm; the telescopic adjustment range of the rear hydraulic cylinder (508) is 0 to 800 mm.

9. The self-propelled deep-rooted crop combine harvester according to claim 7, characterized in that: The multi-stage flexible transport collection device (6) comprises a longitudinal transport belt (601), an oblique transport belt (602), a transverse transport belt (603), and a material collection box (604); each component of the multi-stage flexible transport collection device is fixedly connected to the transport collection and transportation hooking platform (3).

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