阅读说明：本技术 一种小型自走式全幅起苗收获机 (Small self-propelled full-width seedling lifting harvester ) 是由 郑志安 李爱潮 黄璐琦 宋建农 王涛 崔宝聪 于 2020-06-05 设计创作，主要内容包括：本发明涉于中药材加工技术领域,具体涉及一种小型自走式全幅起苗收获机,其包括机架(20)和行走装置(12)、挖掘装置(2)、输送装置(4)、限深轮(18)、筛选装置(8)和收集装置(22)；输送装置(4)包括输送装置侧板、输送链板(15)、第一振动轮(30)、齿式碎土辊(3)、支撑架(7)、支撑架(16)、滚动扒土辊(1)和二级齿式碎土辊(5)；限深轮(18)转动连接在左输送装置侧板和右输送装置侧板的前端；筛选装置(8)包括筛选装置侧板、筛选链板(21)、第二振动轮(14)和去土机构；收集装置(22)位于筛选链板(21)的出料终端。本发明的收获机能够适应麦冬的生长特性,满足麦冬的收获要求,节省人力物力,提高劳动生产效率。(The invention relates to the technical field of traditional Chinese medicinal material processing, in particular to a small self-propelled full-width seedling lifting harvester which comprises a rack (20), a traveling device (12), an excavating device (2), a conveying device (4), a depth wheel (18), a screening device (8) and a collecting device (22); the conveying device (4) comprises a conveying device side plate, a conveying chain plate (15), a first vibrating wheel (30), a tooth type soil crushing roller (3), a support frame (7), a support frame (16), a rolling soil scraping roller (1) and a secondary tooth type soil crushing roller (5); the depth wheel (18) is rotatably connected to the front ends of the left conveying device side plate and the right conveying device side plate; the screening device (8) comprises a screening device side plate, a screening chain plate (21), a second vibrating wheel (14) and a soil removing mechanism; the collecting device (22) is positioned at the discharge terminal of the screening chain plate (21). The harvester of the invention can adapt to the growth characteristics of the radix ophiopogonis, meet the harvesting requirements of the radix ophiopogonis, save manpower and material resources and improve the labor production efficiency.)

1. A small self-propelled full-width seedling lifting harvester comprises a hydraulic oil tank (9) and a rack (2)0, wherein the hydraulic oil tank (9) is arranged on the rack (20); the method is characterized in that:

the small self-propelled full-width seedling lifting harvester also comprises an excavating device (2), a conveying device (4), a screening device (8), a traveling device (12), a hydraulic cylinder (17) and a collecting device (22);

the walking device (12) is positioned at the rear part of the rack (20) and comprises small-sized crawler chassis (6) which are arranged at the bottom of the rack (20) and positioned at two sides of the rack (20) and used for walking, and narrow crawlers are respectively arranged at two sides of the small-sized crawler chassis (6);

the excavating device (2) comprises an excavating shovel (19) and a vibrating mechanism which are arranged at the front end of the frame (20);

the digging shovel (19) is positioned in front of the narrow track on one side of the small-sized crawler chassis (6), and the width of the digging shovel (19) is larger than that of the outer contour of the narrow track on one side of the small-sized crawler chassis (6); the digging shovel (19) comprises a shovel plate positioned at the bottom and shovel tooth side walls (27) positioned at two sides of the shovel plate and extending upwards from the plane of the shovel plate; the front end of the shovel plate is a triangular plane shovel, and the rear end of the shovel plate is provided with a shovel plate sieve bar (28) which faces the rear and is bent upwards;

the vibration mechanism comprises an eccentric wheel (32), a connecting plate (29) and a vibration rod (26);

the vibrating rod (26) comprises a left vibrating rod and a right vibrating rod, the front ends of the left vibrating rod and the right vibrating rod are respectively hinged with the shovel tooth side wall (27) on one side, the rear ends of the left vibrating rod and the right vibrating rod are provided with round holes, and the left eccentric wheel shaft and the right eccentric wheel shaft are positioned on the outer side of the conveying device side plate and are respectively connected with the conveying device side plate on one side through a bearing seat; the eccentric wheel (32) comprises a left eccentric wheel and a right eccentric wheel which are respectively and fixedly connected to the left eccentric wheel shaft and the right eccentric wheel shaft; the left eccentric wheel and the right eccentric wheel are arranged in the circular holes of the left vibrating rod and the right vibrating rod; the left eccentric wheel shaft and the right eccentric wheel shaft are provided with eccentric wheel shaft driven chain wheels, the rolling soil scraping roll shaft is provided with an eccentric wheel shaft driving chain wheel, and the eccentric wheel shaft driving chain wheel is connected with the eccentric wheel shaft driven chain wheel through a chain;

the conveying device (4) comprises a conveying device side plate, a conveying chain plate (15), a first vibrating wheel (30), a tooth type soil crushing roller (3), a support frame (7), a support frame (16), a rolling soil scraping roller (1) and a secondary tooth type soil crushing roller (5);

the conveying device side plates comprise a left conveying device side plate and a right conveying device side plate which are symmetrically arranged on two sides of the conveying chain plate (15), and the front ends of the left conveying device side plate and the right conveying device side plate are hinged with the shovel tooth side wall (27) through a connecting plate (29) respectively;

the conveying chain plate (15) is arranged between the left conveying device side plate and the right conveying device side plate through a bearing, and the conveying chain plate (15) is obliquely arranged along the advancing direction of the harvester in a way of being low in the front and high in the back; the conveying chain plate (15) comprises an upper conveying chain plate and a lower conveying chain plate, the upper end and the lower end of the conveying chain plate (15) are respectively provided with a conveying chain plate driving chain wheel and a conveying chain plate driven chain wheel through a conveying chain plate driving shaft and a conveying chain plate driven shaft which are arranged between the left conveying device side plate and the right conveying device side plate, and a power input chain wheel on the conveying chain plate driving shaft is connected with a chain wheel on a power output shaft of a tractor through a chain;

the front end of the conveying chain plate (15) is positioned below a shovel plate sieve bar (28) at the rear part of the digging shovel (19);

the secondary tooth type soil crushing roller (5) is rotationally connected between the left conveying device side plate and the right conveying device side plate and is positioned above the rear section of the upper conveying chain plate of the conveying chain plate (15); the end part of the secondary tooth type soil crushing roller (5) is provided with a secondary tooth type soil crushing roller shaft, a secondary tooth type soil crushing roller chain wheel is arranged on the secondary tooth type soil crushing roller shaft, and the secondary tooth type soil crushing roller chain wheel is connected with a conveying chain plate driving chain wheel through a chain;

the tooth-type soil crushing roller (3) is rotationally connected between the left conveying device side plate and the right conveying device side plate and is positioned above the middle section of an upper conveying chain plate of the conveying chain plate (15), a tooth-type soil crushing roller shaft is arranged at the end part of the tooth-type soil crushing roller (3), a tooth-type soil crushing roller chain wheel is arranged on the tooth-type soil crushing roller shaft, and the tooth-type soil crushing roller chain wheel is connected with a second-stage tooth-type soil crushing roller chain wheel through a chain;

the rolling soil scraping roller (1) is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the front end of an upper layer conveying chain plate of the conveying chain plate (15), a rolling soil scraping roller shaft is arranged at the end part of the rolling soil scraping roller (1), a rolling soil scraping roller chain wheel is arranged on the rolling soil scraping roller shaft, and the rolling soil scraping roller chain wheel is connected with a tooth-type soil crushing roller chain wheel through a chain;

the first vibration shaft is arranged between the left conveying device side plate and the right conveying device side plate through a bearing and is positioned between the upper conveying chain plate and the lower conveying chain plate, the first vibration wheel (30) is a cam mechanism and fixedly connected to the first vibration shaft, the circumference of the first vibration wheel (30) is in contact with the lower surface of the upper conveying chain plate, the first vibration shaft is fixedly connected with a first vibration shaft driven sprocket, a first vibration shaft driving sprocket is arranged on a tooth-type soil crushing roller shaft, and the first vibration shaft driving sprocket and the first vibration shaft driven sprocket are connected through a chain;

the supporting frame (7) and the supporting rod (16) are respectively positioned below the conveying device (4), the supporting frame (7) comprises a left supporting frame and a right supporting frame, the supporting frame (7) is of a right-angled triangle structure, the right-angled triangle structure comprises a vertical right-angle side which is positioned in the front and extends along the vertical direction, a horizontal right-angle side which extends from the lower end of the first right-angle side to the rear along the horizontal direction, and a bevel edge which connects the vertical right-angle side and the horizontal right-angle side, the supporting rod (16) comprises a left supporting rod and a right supporting rod, the front ends of the left supporting rod and the right supporting rod are respectively fixedly connected with the front sections of the left conveying device side plate and the right conveying device side plate, the rear ends of the left supporting rod and the right supporting rod are respectively fixedly connected with the front ends of the horizontal right-angle sides of the right-angled triangle structures of the left supporting frame and the, the upper ends of the vertical right-angle sides of the right-angled triangle structures of the left support frame and the right support frame are respectively and rotatably connected with the rear sections of the left conveying device side plate and the left conveying device side plate;

the hydraulic cylinder (17) comprises a left hydraulic cylinder and a right hydraulic cylinder, the fixed ends of the left hydraulic cylinder and the right hydraulic cylinder are respectively fixed on the left support rod and the right support rod, the movable ends of the left hydraulic cylinder and the right hydraulic cylinder are respectively rotatably connected with a fixed connection shaft between the left conveying device side plate and the right conveying device side plate, and the hydraulic cylinder (17) is connected with a hydraulic oil tank (9) through a hydraulic pipeline; the hydraulic cylinder (17) is connected with a hydraulic system of the tractor;

the screening device (8) comprises a screening device side plate, a screening chain plate (21), a second vibrating wheel (14) and a soil removing mechanism;

the screening device side plates comprise a front screening device side plate and a rear screening device side plate which are symmetrically arranged at two sides of the screening chain plate (21);

the screening chain plate (21) is arranged between a front screening device side plate and a rear screening device side plate through a bearing, the screening device (8) is positioned behind the conveying device (4) and transversely arranged above the small-sized crawler chassis (6), the screening chain plate (21) is perpendicular to the conveying chain plate (15) on a horizontal projection plane, a material receiving end of the screening chain plate (21) is positioned on the lower side of the rear end of the conveying chain plate (15) and is obliquely arranged in a mode that the material receiving end is high and the material discharging end is low, two ends of the screening chain plate (21) are respectively provided with a screening chain plate driving chain wheel and a screening chain plate driven chain wheel through a screening chain plate driving shaft and a screening chain plate driven shaft which are arranged between the front screening device side plate and the rear screening device side plate, and a power input chain wheel on the screening chain plate driving shaft is connected with an; the screening chain plates (21) comprise upper screening chain plates and lower screening chain plates;

the soil removing mechanism comprises two rubber tooth rollers (31), the rubber tooth rollers (31) are rotatably connected between a front screening device side plate and a rear screening device side plate and are positioned above the upper screening chain plate, a rubber tooth roller shaft is arranged at the end part of each rubber tooth roller (31), a rubber tooth roller chain wheel is arranged on each rubber tooth roller shaft, and each rubber tooth roller chain wheel is connected with a screening chain plate driving chain wheel through a chain;

the axes of the two rubber tooth rollers (31) are parallel to the plane of the upper screening chain plate of the screening chain plate (21);

the rubber tooth roller (31), the rolling soil scraping roller (1), the tooth type soil crushing roller (3) and the secondary tooth type soil crushing roller (5) are the same in structure and comprise scraping roller spike teeth (23) and a rotary drum (25), wherein the plurality of scraping roller spike teeth (23) are arranged along the circumference of the rotary drum (25) at intervals of 90 degrees and are connected with the rotary drum (25) in a fixedly connected mode;

the second vibration shaft is arranged between the front screening device side plate and the rear screening device side plate through a bearing and is positioned between the upper screening chain plate and the lower screening chain plate, the second vibration wheel (14) is a cam mechanism and fixedly connected to the second vibration shaft, the circumference of the second vibration wheel (14) is in contact with the lower surface of the upper screening chain plate, the second vibration shaft is fixedly connected with a second vibration shaft driven chain wheel, a rubber tooth roller shaft is provided with a second vibration shaft driving chain wheel, and the second vibration shaft driving chain wheel is connected with the second vibration shaft driven chain wheel through a chain;

the collecting device (22) is positioned at the discharge terminal of the screening chain plate (21).

2. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the width range of the narrow crawler belt is 150-180 mm.

3. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the conveying chain plate (15) comprises a plurality of conveying single plates which are arranged in parallel and a conveying chain plate driving chain sleeved on the conveying chain plate driving chain wheel and the conveying chain plate driven chain wheel, the conveying single plates can be driven by the conveying chain plate driving chain to move, wherein the plurality of conveying single plates driven by the conveying chain plate driving chain to move to the upper layer of the conveying chain plate (15) form an upper layer conveying chain plate, and the moving direction of the conveying single plates on the upper layer conveying chain plate is from bottom to top; the conveying chain plates at the lower layer are formed by a plurality of conveying single plates which are driven by the conveying chain plate driving chain to move to the lower layer of the conveying chain plate (15), the moving direction of the conveying single plates on the conveying chain plate at the lower layer is from top to bottom, and gaps are reserved among the plurality of conveying single plates.

4. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the distance between the secondary tooth type soil crushing roller (5) and the upper layer conveying chain plate of the conveying chain plate (15) is smaller than the distance between the tooth type soil crushing roller (3) and the upper layer conveying chain plate of the conveying chain plate (15).

5. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the axes of the rolling soil raking roller (1), the tooth type soil crushing roller (3) and the secondary tooth type soil crushing roller (5) are all parallel to the plane of the upper layer conveying chain plate of the conveying chain plate (15).

6. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the small self-propelled full-width seedling lifting harvester also comprises a chain protecting plate (24) which is positioned in the front lower part of the conveying device (4), is connected with the side plate of the conveying device through a bolt and is used for protecting the conveying chain plate (15).

7. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the screening chain plate (21) comprises a plurality of screening single plates which are arranged in parallel and a screening chain plate driving chain sleeved on a screening chain plate driving chain wheel and a screening chain plate driven chain wheel; the screening single plates can be driven by a screening chain plate driving chain to move, wherein the screening single plates driven by the screening chain plate driving chain to move to the upper layer of the screening chain plate (21) form an upper-layer screening chain plate, and the moving direction of the screening single plates on the upper-layer screening chain plate is from a material receiving end to a material discharging end; a plurality of screening single plates driven by a screening chain plate driving chain to move to the lower layer of the screening chain plate (21) form a lower-layer screening chain plate, and the movement direction of the screening single plates on the lower-layer screening chain plate is from a discharge end to a receiving end; gaps are reserved among the screening veneers.

8. The small self-propelled full-width seedling raising harvester according to claim 3 or 7, characterized in that: the conveying single plates and the screening single plates are L-shaped 3mm thin steel plates.

9. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the collecting device (22) is adjustable and is provided with an adjustable clamping mechanism, and the collecting container is a collecting box or a collecting bag.

10. The small self-propelled full-width seedling raising harvester according to claim 1, characterized in that: the small self-propelled full-width seedling lifting harvester further comprises depth limiting wheels (18), and the depth limiting wheels (18) are rotatably connected to the front ends of the left conveying device side plate and the right conveying device side plate.

Technical Field

The invention relates to the technical field of traditional Chinese medicine processing, in particular to a small self-propelled full-width seedling lifting harvester.

Background

The ophiopogon root is a common Chinese traditional medicine, is widely applied to the clinical treatment of traditional Chinese medicine, and is also a raw material of various Chinese patent medicines and health-care foods. Modern pharmacological research shows that radix ophiopogonis mainly contains ophiopogonin, steroid saponin, alkaloid, sitosterol, glucose, amino acid, vitamin and the like, and has the effects of resisting fatigue, removing free radicals, improving cellular immune function and reducing blood sugar. In addition, radix Ophiopogonis has effects of tranquilizing, hypnotizing, resisting myocardial ischemia, resisting arrhythmia, resisting tumor, etc., and especially has multiple effects of promoting the health of the elderly. Radix Ophiopogonis has high medicinal value and high economic value. Therefore, the radix ophiopogonis becomes an efficient economic crop for farmers to plant.

Because the planting and harvesting process of the radix ophiopogonis is complex, the radix ophiopogonis is almost harvested manually at present, and when the radix ophiopogonis is harvested, a harvesting worker firstly inserts forks into the space between rows of the radix ophiopogonis to loosen soil with the depth of about 25cm, then pulls the radix ophiopogonis out of the field by hand, beats the radix ophiopogonis on the ground, separates the soil and finally stores the soil in a centralized way. Due to the higher soil viscosity, the labor intensity is high, the efficiency is low, and the manual harvesting and management cost is high in the harvesting process. Therefore, the realization of the mechanized harvesting of the dwarf lilyturf has important significance for reducing the labor intensity of farmers, reducing the labor management cost and improving the labor productivity.

At present, other crop (such as potato and other root crops) harvesters cannot be suitable for harvesting radix ophiopogonis, firstly, the materials are different, the tuber moisture content of the radix ophiopogonis is high, and the surface of the radix ophiopogonis easily damaged; secondly, the harvesting conditions are different, and the soil for planting the radix ophiopogonis is high in viscosity; thirdly, the harvesting requirements are different, and the tuber and the stem leaves on the upper part of the soil cannot be damaged when the radix ophiopogonis is harvested. Therefore, the existing other crop harvester structure cannot adapt to the harvesting requirement of the radix ophiopogonis and cannot be directly reused. The patent and patent application for harvesting radix ophiopogonis includes an "radix ophiopogonis harvester" with application number 200720086456.X, an "radix ophiopogonis harvester" with application number 201520757567.3, a "step-by-step numerical control radix ophiopogonis excavator" with application number 201120103708.1, an "radix ophiopogonis planting and harvesting device" with application number 201810403734.2, an "radix ophiopogonis fruit picking machine" with application number 200520036621.1, an "radix ophiopogonis harvester" with application number 201621285135.8, an "radix ophiopogonis combine harvester" with application number 201910451584.7, a "novel radix ophiopogonis harvester" with application number 201620376746.7, an "radix ophiopogonis harvesting device" with application number 201910666908.9 and an "automatic radix ophiopogonis harvester" with application number 201720374448.9. In the patents and patent applications of the radix ophiopogonis harvester, the "radix ophiopogonis harvester", the "radix ophiopogonis harvesting machine", the "radix ophiopogonis planting and harvesting device", the "radix ophiopogonis fruit picking machine", the "novel radix ophiopogonis harvesting machine" and the "automatic radix ophiopogonis harvesting machine" all adopt a rear-mounted harvesting mode, in the harvesting process, a front traction machine can roll radix ophiopogonis seedlings to damage stems and leaves of radix ophiopogonis, and the division propagation of radix ophiopogonis is influenced. In addition, the paired roller is adopted in the automatic dwarf lilyturf tuber harvester to rotate and rub soil, so that the epidermis of tuber of the dwarf lilyturf tuber is damaged, and the harvesting quality of the dwarf lilyturf tuber is influenced. The step-type numerical control radix ophiopogonis excavator and the radix ophiopogonis harvester do not meet the agricultural requirements of radix ophiopogonis, and the tuber of the radix ophiopogonis cannot be separated from soil by the aid of the radix ophiopogonis harvester.

Therefore, there is a need to develop a radix ophiopogonis harvester meeting harvesting requirements, so as to solve the problems of high working strength and low labor rate during harvesting radix ophiopogonis.

Disclosure of Invention

The invention aims to provide a small self-propelled full-width seedling lifting harvester which can adapt to the growth characteristics of radix ophiopogonis, meet the harvesting requirements of the radix ophiopogonis, save manpower and material resources and improve the labor production efficiency.

The purpose of the invention is realized by the following technical scheme:

a small self-propelled full-width seedling lifting harvester comprises a hydraulic oil tank 9 and a rack 20, wherein the hydraulic oil tank 9 is arranged on the rack 20;

the small self-propelled full-width seedling lifting harvester also comprises an excavating device 2, a conveying device 4, a screening device 8, a traveling device 12, a hydraulic cylinder 17 and a collecting device 22;

the walking device 12 is positioned at the rear part of the frame 20 and comprises a small-sized crawler chassis 6 which is arranged at the bottom of the frame 20 and positioned at two sides of the frame 20 and used for walking, and narrow crawlers are respectively arranged at two sides of the small-sized crawler chassis 6;

the excavating device 2 comprises an excavating shovel 19 and a vibrating mechanism which are arranged at the front end of a frame 20;

the digging shovel 19 is positioned in front of the narrow track on one side of the small-sized crawler chassis 6, and the width of the digging shovel 19 is larger than that of the outer contour of the narrow track on one side of the small-sized crawler chassis 6; the shovel blade 19 comprises a shovel plate positioned at the bottom and shovel tooth side walls 27 positioned at two sides of the shovel plate and extending upwards from the plane of the shovel plate; the front end of the shovel plate is a triangular plane shovel, and the rear end of the shovel plate is provided with a shovel plate sieve bar 28 which faces the rear and is bent upwards;

the vibration mechanism comprises an eccentric wheel 32, a connecting plate 29 and a vibration rod 26;

the vibrating rod 26 comprises a left vibrating rod and a right vibrating rod, the front ends of the left vibrating rod and the right vibrating rod are respectively hinged with the shovel tooth side wall 27 on one side, the rear ends of the left vibrating rod and the right vibrating rod are provided with round holes, and a left eccentric wheel shaft and a right eccentric wheel shaft are positioned on the outer side of the conveying device side plate and are respectively connected with the conveying device side plate on one side through a bearing seat; the eccentric wheel 32 comprises a left eccentric wheel and a right eccentric wheel which are respectively and fixedly connected to a left eccentric wheel shaft and a right eccentric wheel shaft; the left eccentric wheel and the right eccentric wheel are arranged in the circular holes of the left vibrating rod and the right vibrating rod; the left eccentric wheel shaft and the right eccentric wheel shaft are provided with eccentric wheel shaft driven chain wheels, the rolling soil scraping roll shaft is provided with an eccentric wheel shaft driving chain wheel, and the eccentric wheel shaft driving chain wheel is connected with the eccentric wheel shaft driven chain wheel through a chain;

the conveying device 4 comprises a conveying device side plate, a conveying chain plate 15, a first vibrating wheel 30, a tooth-type soil crushing roller 3, a support frame 7, a support frame 16, a rolling soil raking roller 1 and a secondary tooth-type soil crushing roller 5;

the conveying device side plates comprise a left conveying device side plate and a right conveying device side plate which are symmetrically arranged on two sides of the conveying chain plate 15, and the front ends of the left conveying device side plate and the right conveying device side plate are hinged with the shovel tooth side wall 27 through connecting plates 29 respectively;

the conveying chain plate 15 is arranged between the left conveying device side plate and the right conveying device side plate through a bearing, and the conveying chain plate 15 is obliquely arranged along the advancing direction of the harvester in a way of being low in the front and high in the back; the conveying chain plate 15 comprises an upper conveying chain plate and a lower conveying chain plate, the upper end and the lower end of the conveying chain plate 15 are respectively provided with a conveying chain plate driving chain wheel and a conveying chain plate driven chain wheel through a conveying chain plate driving shaft and a conveying chain plate driven shaft which are arranged between the left conveying device side plate and the right conveying device side plate, and a power input chain wheel on the conveying chain plate driving shaft is connected with a chain wheel on a power output shaft of a tractor through a chain;

the front end of the conveying chain plate 15 is positioned below a shovel plate screen bar 28 at the rear part of the digging shovel 19;

the secondary tooth type soil crushing roller 5 is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the rear section of the upper conveying chain plate of the conveying chain plate 15; the end part of the second-stage tooth type soil crushing roller 5 is provided with a second-stage tooth type soil crushing roller shaft, the second-stage tooth type soil crushing roller shaft is provided with a second-stage tooth type soil crushing roller chain wheel, and the second-stage tooth type soil crushing roller chain wheel is connected with a conveying chain plate driving chain wheel through a chain;

the tooth-type soil crushing roller 3 is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the middle section of the upper conveying chain plate of the conveying chain plate 15, a tooth-type soil crushing roller shaft is arranged at the end part of the tooth-type soil crushing roller 3, a tooth-type soil crushing roller chain wheel is arranged on the tooth-type soil crushing roller shaft, and the tooth-type soil crushing roller chain wheel is connected with the second-stage tooth-type soil crushing roller chain wheel through a chain;

the rolling soil scraping roller 1 is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the front end of an upper layer conveying chain plate of the conveying chain plate 15, a rolling soil scraping roller shaft is arranged at the end part of the rolling soil scraping roller 1, a rolling soil scraping roller chain wheel is arranged on the rolling soil scraping roller shaft, and the rolling soil scraping roller chain wheel is connected with a tooth type soil crushing roller chain wheel through a chain;

the first vibration shaft is arranged between the left conveying device side plate and the right conveying device side plate through a bearing and is positioned between the upper conveying chain plate and the lower conveying chain plate, the first vibration wheel 30 is a cam mechanism and fixedly connected to the first vibration shaft, the circumference of the first vibration wheel 30 is in contact with the lower surface of the upper conveying chain plate, a first vibration shaft driven sprocket is fixedly connected to the first vibration shaft, a first vibration shaft driving sprocket is arranged on a tooth-type soil crushing roller shaft, and the first vibration shaft driving sprocket and the first vibration shaft driven sprocket are connected through a chain;

the supporting frame 7 and the supporting rod 16 are respectively positioned below the conveying device 4, the supporting frame 7 comprises a left supporting frame and a right supporting frame, the supporting frame 7 is of a right-angled triangle structure, the right-angled triangle structure comprises a vertical right-angle side which is positioned in the front and extends along the vertical direction, a horizontal right-angle side which extends from the lower end of the first right-angle side to the rear along the horizontal direction, and a bevel edge which connects the vertical right-angle side and the horizontal right-angle side, the supporting rod 16 comprises a left supporting rod and a right supporting rod, the front ends of the left supporting rod and the right supporting rod are respectively fixedly connected with the front sections of the left conveying device side plate and the right conveying device side plate, the rear ends of the left supporting rod and the right supporting rod are respectively fixedly connected with the front ends of the horizontal right-angle sides of the right-angled triangle structures of the left supporting, the upper ends of the vertical right-angle sides of the right-angled triangle structures of the left support frame and the right support frame are respectively and rotatably connected with the rear sections of the left conveying device side plate and the left conveying device side plate;

the hydraulic cylinder 17 comprises a left hydraulic cylinder and a right hydraulic cylinder, the fixed ends of the left hydraulic cylinder and the right hydraulic cylinder are respectively fixed on the left support rod and the right support rod, the movable ends of the left hydraulic cylinder and the right hydraulic cylinder are respectively rotatably connected with the fixed connecting shaft between the left conveying device side plate and the right conveying device side plate, and the hydraulic cylinder 17 is connected with the hydraulic oil tank 9 through a hydraulic pipeline; the hydraulic cylinder 17 is connected with a hydraulic system of the tractor;

the screening device 8 comprises a screening device side plate, a screening chain plate 21, a second vibrating wheel 14 and a soil removing mechanism;

the screening device side plates comprise a front screening device side plate and a rear screening device side plate which are symmetrically arranged at two sides of the screening chain plate 21;

the screening chain plate 21 is arranged between a front screening device side plate and a rear screening device side plate through a bearing, the screening device 8 is positioned behind the conveying device 4 and transversely arranged above the small-sized crawler chassis 6, the screening chain plate 21 is vertical to the conveying chain plate 15 on a horizontal projection plane, a material receiving end of the screening chain plate 21 is positioned at the lower side of the rear end of the conveying chain plate 15 and is obliquely arranged in a mode that the material receiving end is high and the material discharging end is low, two ends of the screening chain plate 21 are respectively provided with a screening chain plate driving chain wheel and a screening chain plate driven chain wheel through a screening chain plate driving shaft and a screening chain plate driven shaft which are arranged between the front screening device side plate and the rear screening device side plate, and a power input chain wheel on the screening chain plate driving shaft is connected with an; the screening chain plates 21 comprise upper screening chain plates and lower screening chain plates;

the soil removing mechanism comprises two rubber tooth rollers 31, the rubber tooth rollers 31 are rotatably connected between a front screening device side plate and a rear screening device side plate and are positioned above the upper screening chain plate, a rubber tooth roller shaft is arranged at the end part of each rubber tooth roller 31, a rubber tooth roller chain wheel is arranged on each rubber tooth roller shaft, and the rubber tooth roller chain wheel is connected with a screening chain plate driving chain wheel through a chain;

the axes of the two rubber tooth rollers 31 are parallel to the plane of the upper screening chain plate of the screening chain plate 21;

the rubber tooth roller 31, the rolling soil raking roller 1, the tooth type soil crushing roller 3 and the secondary tooth type soil crushing roller 5 are the same in structure and comprise rake roller spike teeth 23 and a roller 25, wherein the rake roller spike teeth 23 are arranged along the circumference of the roller 25 at intervals of 90 degrees and are connected with the roller 25 in a fixedly connected mode;

the second vibration shaft is arranged between the front screening device side plate and the rear screening device side plate through a bearing and is positioned between the upper screening chain plate and the lower screening chain plate, the second vibration wheel 14 is a cam mechanism and is fixedly connected to the second vibration shaft, the circumference of the second vibration wheel 14 is in contact with the lower surface of the upper screening chain plate, a second vibration shaft driven sprocket is fixedly connected to the second vibration shaft, a second vibration shaft driving sprocket is arranged on the rubber tooth roller shaft, and the second vibration shaft driving sprocket and the second vibration shaft driven sprocket are connected through a chain;

the collecting device 22 is positioned at the discharge end of the screening chain 21.

The width range of the narrow crawler belt is 150-180 mm.

The conveying chain plate 15 comprises a plurality of conveying single plates which are arranged in parallel and a conveying chain plate driving chain sleeved on the conveying chain plate driving chain wheel and the conveying chain plate driven chain wheel, the conveying single plates can be driven by the conveying chain plate driving chain to move, wherein the plurality of conveying single plates which are driven by the conveying chain plate driving chain to move to the upper layer of the conveying chain plate 15 form an upper layer conveying chain plate, and the moving direction of the conveying single plates on the upper layer conveying chain plate is from bottom to top; the conveying chain plates at the lower layer are formed by a plurality of conveying single plates which are driven by the conveying chain plate driving chain to move to the lower layer of the conveying chain plate 15, the moving direction of the conveying single plates on the conveying chain plate at the lower layer is from top to bottom, and gaps are reserved among the plurality of conveying single plates.

The distance between the secondary tooth type soil crushing roller 5 and the upper layer conveying chain plate of the conveying chain plate 15 is smaller than the distance between the tooth type soil crushing roller 3 and the upper layer conveying chain plate of the conveying chain plate 15.

The axes of the rolling soil raking roller 1, the tooth type soil crushing roller 3 and the secondary tooth type soil crushing roller 5 are all parallel to the plane of the upper layer conveying chain plate of the conveying chain plate 15.

The small self-propelled full-width seedling lifting harvester also comprises a chain protecting plate 24 which is positioned at the front lower part of the conveying device 4, is connected with a side plate of the conveying device through a bolt and is used for protecting the conveying chain plate 15.

The screening chain plate 21 comprises a plurality of screening single plates which are arranged in parallel and a screening chain plate driving chain sleeved on a screening chain plate driving chain wheel and a screening chain plate driven chain wheel; the screening single plates can be driven by a screening chain plate driving chain to move, wherein the screening single plates driven by the screening chain plate driving chain to move to the upper layer of the screening chain plate 21 form an upper-layer screening chain plate, and the moving direction of the screening single plates on the upper-layer screening chain plate is from a material receiving end to a material discharging end; a plurality of screening single plates driven by a screening chain plate driving chain to move to the lower layer of the screening chain plate 21 form a lower-layer screening chain plate, and the movement direction of the screening single plates on the lower-layer screening chain plate is from a discharge end to a receiving end; gaps are reserved among the screening veneers.

The conveying single plates and the screening single plates are L-shaped 3mm thin steel plates.

The collecting device 22 is adjustable and is provided with an adjustable clamping mechanism, and the collecting container is a collecting box or a collecting bag.

The small self-propelled full-width seedling lifting harvester further comprises depth wheel 18, and the depth wheel 18 is rotatably connected to the front ends of the left conveying device side plate and the right conveying device side plate.

The invention has the beneficial effects that:

the small-sized radix ophiopogonis harvester adopts the small-sized crawler chassis 6, so that the radix ophiopogonis harvester can adapt to various rugged terrains, and the terrain adaptability of the radix ophiopogonis harvester is improved. The dwarf lilyturf tuber harvester can adapt to the conditions that the planting land of the dwarf lilyturf tuber is small and turns more, and is more favorable for harvesting the dwarf lilyturf tuber.

The small-sized dwarf lilyturf tuber harvester adopts offset harvesting, the width excavated by the excavating shovel 19 is consistent with the width of the outer contour of the small-sized crawler chassis 6 at one side, so that the crawler can not roll dwarf lilyturf tuber in the advancing process of the small-sized dwarf lilyturf tuber harvester, the damage to dwarf lilyturf tuber stems and seedlings is avoided, and the division propagation of dwarf lilyturf tuber is facilitated.

The rolling soil scraping roller 1 is arranged above the rear part of the digging shovel 19, so that when the dwarf lilyturf tuber harvester is used for digging, the rolling soil scraping roller 1 can loosen soil, the soil crushing effect is improved, and the dwarf lilyturf tuber harvesting operation is facilitated.

Carry the top of link joint 15 to set up two-stage hack rolling machine, two-stage hack device all adopts tooth-like hack roller, promptly: the distance between the two-stage soil crushing device and the conveying chain plate 15 is gradually reduced, so that a better soil crushing effect is achieved.

The screening chain plate 21 and the conveying chain plate 15 are arranged in an inverted L shape, so that the vibration soil removal stroke of the radix ophiopogonis on the conveying chain plate 15 is increased, the total stroke can reach 2.5m, the method can adapt to soil with larger viscosity, and the harvesting quality is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a small self-propelled full-width seedling-lifting harvester of the present invention;

FIG. 2 is a left side view of the overall structure of the small self-propelled full-width seedling lifting harvester of the invention;

FIG. 3 is a schematic view of the construction of the digging blade 19 of the present invention;

fig. 4 is a schematic structural diagram of the rubber tooth roller 31, the rolling soil raking roller 1, the tooth type soil crushing roller 3 and the secondary tooth type soil crushing roller 5.

Wherein the reference numerals are:

1. rolling soil scraping roller 2 and excavating device

3. Tooth-like hack roller 4, conveyor

5. Two-stage tooth type soil crushing roller 6 and small crawler chassis

7. Support frame 8, sieving mechanism

9. Hydraulic oil tank 10 and transmission

11. Engine 12 and running gear

14. Second vibrating wheel

15. Conveying chain plate 16 and supporting rod

17. Hydraulic cylinder 18 and depth wheel

19. Digging shovel 20, frame

21. Screening chain plate 22 and collecting device

23. Raking roller nail tooth 24 and chain guard plate

25. Roller 26 and vibrating rod

27. Shovel tooth side wall 28, shovel plate screen bar

29. Connecting plate 30 and first vibrating wheel

31. Rubber toothed roller 32, eccentric wheel

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

As shown in fig. 1 to 4, the small self-propelled full-width seedling lifting harvester of the invention comprises an excavating device 2, a conveying device 4, a screening device 8, a hydraulic oil tank 9, a transmission 10, an engine 11, a traveling device 12, a hydraulic cylinder 17, a depth wheel 18, a frame 20 and a collecting device 22.

The running gear 12 is located at the rear part of the frame 20 and comprises a small crawler chassis 6 which is arranged at the bottom of the frame 20 and is located at two sides of the frame 20 and used for running.

The transmission 10, the engine 11, and the hydraulic oil tank 9 are provided on the frame 20.

Narrow tracks are respectively arranged on two sides of the small-sized track chassis 6, the width range of the narrow tracks is preferably 150-180 mm, and when harvesting is carried out, the width of the digging shovel 19 can cover the width of the outer contour of the narrow track on one side.

The excavating device 2 comprises an excavating blade 19 mounted at the front end of a frame 20 and a vibrating mechanism.

The digging shovel 19 is positioned in front of the narrow track on one side of the small-sized crawler chassis 6 of the small-sized self-propelled full-width seedling lifting harvester, and the width of the digging shovel 19 is larger than the width of the outer contour of the narrow track on one side of the small-sized crawler chassis 6. The shovel 19 includes a blade at the bottom and tine side walls 27 on either side of the blade and extending upward from the plane of the blade. The front end of the shovel plate is a triangular plane shovel, and the rear end of the shovel plate is provided with shovel plate sieve bars 28 which face the rear and are bent upwards.

The vibrating mechanism comprises an eccentric 32, a connecting plate 29 and a vibrating rod 26.

The vibratory rod 26 includes a left vibratory rod and a right vibratory rod. The front ends of the left vibrating rod and the right vibrating rod are hinged to the shovel tooth side wall 27 on one side respectively, and round holes are formed in the rear ends of the left vibrating rod and the right vibrating rod. The left eccentric wheel shaft and the right eccentric wheel shaft are positioned on the outer side of the conveying device side plate and are respectively connected with the conveying device side plate on one side through a bearing seat. The eccentric wheel 32 includes a left eccentric wheel and a right eccentric wheel, which are respectively fixed on the left eccentric wheel shaft and the right eccentric wheel shaft. The left eccentric wheel and the right eccentric wheel are arranged in the round holes of the left vibrating rod and the right vibrating rod. And the left eccentric wheel shaft and the right eccentric wheel shaft are provided with eccentric wheel shaft driven chain wheels, the rolling soil digging roll shaft is provided with an eccentric wheel shaft driving chain wheel, and the eccentric wheel shaft driving chain wheel is connected with the eccentric wheel shaft driven chain wheel through a chain.

When the eccentric 32 is rotated, the end of the vibratory rod 26 to which the eccentric 32 is attached vibrates with the eccentric 32 about the axis of the eccentric shaft, thereby causing the blade 19 to vibrate in the direction of the blade face of the blade.

The conveying device 4 comprises a conveying device side plate, a conveying chain plate 15, a first vibrating wheel 30, a tooth-type soil crushing roller 3, a support frame 7, a support frame 16, a rolling soil scraping roller 1 and a secondary tooth-type soil crushing roller 5.

The conveyor side plates include a left conveyor side plate and a right conveyor side plate symmetrically arranged on both sides of the conveyor link 15. The front ends of the left conveying device side plate and the right conveying device side plate are respectively hinged with the shovel tooth side wall 27 through a connecting plate 29.

The conveying chain plates 15 are arranged between the left conveying device side plate and the right conveying device side plate through bearings, and the conveying chain plates 15 are obliquely arranged along the advancing direction of the harvester in a mode of being low in the front and high in the back. The upper end and the lower end of the conveying chain plate 15 are respectively provided with a conveying chain plate driving chain wheel and a conveying chain plate driven chain wheel through a conveying chain plate driving shaft and a conveying chain plate driven shaft which are arranged between the left conveying device side plate and the right conveying device side plate, and a power input chain wheel on the conveying chain plate driving shaft is connected with a chain wheel on a power output shaft of the tractor through a chain. The conveying chain plate 15 comprises a plurality of conveying single plates arranged in parallel with each other and a conveying chain plate driving chain sleeved on the conveying chain plate driving chain wheel and the conveying chain plate driven chain wheel. The conveying single plate can be driven by a conveying chain plate driving chain to move. The conveying chain plates 15 comprise upper conveying chain plates and lower conveying chain plates, wherein the conveying chain plates drive the chains to drive the conveying single plates on the upper layers of the conveying chain plates 15 to form the upper conveying chain plates, and the moving directions of the conveying single plates on the upper conveying chain plates are from bottom to top; the conveying chain plates at the lower layer are formed by a plurality of conveying single plates driven by the conveying chain plate driving chain to move to the lower layer of the conveying chain plate 15, and the moving direction of the conveying single plates on the conveying chain plates at the lower layer is from top to bottom. Gaps are reserved among the conveying single plates. Preferably, the conveying veneer is an "L" shaped 3mm thin steel plate.

The front end of the conveyor chain 15 is located below the blade screen 28 at the rear of the digging shovel 19.

The second-stage tooth type soil crushing roller 5 is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the rear section of the upper conveying chain plate of the conveying chain plate 15. The tip of second grade tooth-like hack roller 5 is equipped with the tooth-like hack roller shaft of second grade, be equipped with the tooth-like hack roller sprocket of second grade on the tooth-like hack roller shaft of second grade, the tooth-like hack roller sprocket of second grade passes through the chain with carrying link joint drive sprocket and is connected.

The tooth-type soil crushing roller 3 is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the middle section of the upper conveying chain plate of the conveying chain plate 15. The end part of the tooth-type soil crushing roller 3 is provided with a tooth-type soil crushing roller shaft, the tooth-type soil crushing roller shaft is provided with a tooth-type soil crushing roller chain wheel, and the tooth-type soil crushing roller chain wheel is connected with a second-stage tooth-type soil crushing roller chain wheel through a chain.

The rolling soil scraping roller 1 is rotatably connected between the left conveying device side plate and the right conveying device side plate and is positioned above the front end of the upper conveying chain plate of the conveying chain plate 15. The end part of the rolling soil scraping roller 1 is provided with a rolling soil scraping roller shaft, the rolling soil scraping roller shaft is provided with a rolling soil scraping roller chain wheel, and the rolling soil scraping roller chain wheel is connected with a tooth type soil crushing roller chain wheel through a chain.

The distance between the secondary tooth type soil crushing roller 5 and the upper layer conveying chain plate of the conveying chain plate 15 is smaller than the distance between the tooth type soil crushing roller 3 and the upper layer conveying chain plate of the conveying chain plate 15.

The axes of the rolling soil raking roller 1, the tooth type soil crushing roller 3 and the secondary tooth type soil crushing roller 5 are all parallel to the plane of the upper layer conveying chain plate of the conveying chain plate 15.

The first vibration shaft is arranged between the left conveying device side plate and the right conveying device side plate through a bearing and is positioned between the upper conveying chain plate and the lower conveying chain plate. The first vibrating wheel 30 is a cam mechanism and is fixedly connected to a first vibrating shaft, and the circumference of the first vibrating wheel 30 is in contact with the lower surface of the upper conveying chain plate. The first vibration shaft is fixedly connected with a first vibration shaft driven sprocket, a first vibration shaft driving sprocket is arranged on the tooth-type soil crushing roller shaft, and the first vibration shaft driving sprocket and the first vibration shaft driven sprocket are connected through a chain.

The support frame 7 and the support bar 16 are respectively located below the conveyor 4. The support frame 7 includes a left support frame and a right support frame. The support frame 7 is the right triangle structure, the right triangle structure is including being located the place ahead along the vertical right-angle side that vertical direction extends, by the lower extreme on first right-angle side is to the horizontal right-angle side that the horizontal direction extends to the rear to and the hypotenuse of connecting vertical right-angle side and horizontal right-angle side. The support bar 16 includes a left support bar and a right support bar. The front ends of the left supporting rod and the right supporting rod are fixedly connected with the front sections of the left conveying device side plate and the right conveying device side plate respectively. The rear ends of the left supporting rod and the right supporting rod are fixedly connected with the front ends of the horizontal right-angle sides of the right-angled triangle structures of the left supporting frame and the right supporting frame respectively. The rear ends of the horizontal right-angle sides of the right-angled triangle structures of the left support frame and the right support frame are rotatably connected with the frame 20. The upper ends of the vertical right-angle sides of the right-angled triangle structures of the left support frame and the right support frame are respectively connected with the rear sections of the left conveying device side plate and the left conveying device side plate in a rotating mode.

The hydraulic cylinder 17 includes a left hydraulic cylinder and a right hydraulic cylinder. The fixed ends of the left hydraulic cylinder and the right hydraulic cylinder are respectively fixed on the left support rod and the right support rod, and the movable ends of the left hydraulic cylinder and the right hydraulic cylinder are respectively in rotating connection with the fixed connecting shaft between the left conveying device side plate and the right conveying device side plate. The hydraulic cylinder 17 is connected to the hydraulic oil tank 9 through a hydraulic line. The hydraulic cylinder 17 is connected to the hydraulic system of the tractor.

The chain guard plates 24 are located at the front lower part of the conveying device 4 and connected with the side plates of the conveying device through bolts, and are used for protecting the conveying chain plates 15 and preventing the conveying chain plates 15 from scraping soil in the rotating process.

The depth wheel 18 is rotatably connected to the front ends of the left and right conveyor side plates.

The screening device 8 comprises a screening device side plate, a screening chain plate 21, a second vibrating wheel 14 and a soil removing mechanism.

The screening device side plates comprise a front screening device side plate and a rear screening device side plate which are symmetrically arranged on two sides of the screening chain plate 21.

The screening chain plate 21 is arranged between the front screening device side plate and the rear screening device side plate through a bearing, and the screening device 8 is positioned behind the conveying device 4 and transversely arranged above the small-sized crawler chassis 6. The screening chain plate 21 is vertical to the conveying chain plate 15 on the horizontal projection plane. The material receiving end of the screening chain plate 21 is positioned at the lower side of the rear end of the conveying chain plate 15 and is obliquely arranged in a mode that the material receiving end is high and the material discharging end is low. Two ends of the screening chain plate 21 are respectively provided with a screening chain plate driving chain wheel and a screening chain plate driven chain wheel through a screening chain plate driving shaft and a screening chain plate driven shaft which are arranged between the front screening device side plate and the rear screening device side plate, and a power input chain wheel on the screening chain plate driving shaft is connected with an output chain wheel on a power output shaft of the tractor through a chain. The screening chain plate 21 comprises a plurality of screening single plates arranged in parallel and a screening chain plate driving chain sleeved on the screening chain plate driving chain wheel and the screening chain plate driven chain wheel. The screening veneer can be driven by the screening chain plate driving chain to move. The screening link plates 21 include upper screening link plates and lower screening link plates. Wherein, the screening chain plate drives a plurality of screening single plates which are driven by the chain to move to the upper layer of the screening chain plate 21 to form an upper screening chain plate, and the moving direction of the screening single plates on the upper screening chain plate is from the receiving end to the discharging end; the screening chain plate at the lower layer is formed by a plurality of screening single plates which are driven by the screening chain plate driving chain to move to the lower layer of the screening chain plate 21, and the movement direction of the screening single plates on the screening chain plate at the lower layer is from the discharge end to the receiving end. Gaps are reserved among the screening veneers. Preferably, the screening veneer is an "L" shaped 3mm steel sheet.

The soil removing mechanism comprises two rubber tooth rollers 31, and the rubber tooth rollers 31 are rotatably connected between the front screening device side plate and the rear screening device side plate and are positioned above the upper screening chain plate. The end part of the rubber tooth roller 31 is provided with a rubber tooth roller shaft, the rubber tooth roller shaft is provided with a rubber tooth roller chain wheel, and the rubber tooth roller chain wheel is connected with a screening chain plate driving chain wheel through a chain.

The axes of the two rubber tooth rollers 31 are parallel to the plane of the upper screening chain plate of the screening chain plate 21.

The rubber tooth roller 31, the rolling soil scraping roller 1, the tooth type soil crushing roller 3 and the secondary tooth type soil crushing roller 5 have the same structure and comprise scraping roller spike teeth 23 and a roller 25. The plurality of raking roller spike teeth 23 are arranged along the circumference of the roller 25 at intervals of 90 degrees and are connected with the roller 25 in a fixed connection mode.

The second vibration shaft is arranged between the front screening device side plate and the rear screening device side plate through a bearing and is positioned between the upper screening chain plate and the lower screening chain plate. The second vibrating wheel 14 is a cam mechanism and is fixedly connected to a second vibrating shaft, and the circumference of the second vibrating wheel 14 is in contact with the lower surface of the upper screening chain plate. A second vibration shaft driven sprocket is fixedly connected to the second vibration shaft, a second vibration shaft driving sprocket is arranged on the rubber tooth roller shaft, and the second vibration shaft driving sprocket and the second vibration shaft driven sprocket are connected through a chain.

The collecting device 22 is positioned at the discharge end of the screening chain 21. The collecting device 22 is adjustable and is provided with an adjustable clamping mechanism, and the collecting device 22 can select a collecting box or a collecting bag.

The working process of the invention is as follows:

the road driving process comprises the following steps: under the control of the tractor's hydraulic system, the hydraulic cylinder 17 is extended and the excavating device 2 is raised above the ground. At the same time, the operation of the working output shaft of the engine 11 is stopped, the excavation device 2, the conveying device 4, the screening device 8 and the collecting device 22 are stopped, and only the small crawler chassis 6 is normally operated, so that the normal running of the machine on the road is maintained.

Harvesting the radix ophiopogonis:

an excavation step: the small self-propelled full-width seedling lifting harvester disclosed by the invention operates in the field of radix ophiopogonis, the excavating device 2 descends along with the contraction of the hydraulic cylinder 17, meanwhile, the engine 11 starts to work and outputs power outwards, the conveying chain plate driving chain wheel, the secondary tooth type soil crushing roller 5 and the tooth type soil crushing roller 3 are sequentially driven to reach the excavating device 2 in a chain transmission mode, then the rolling soil scraping roller 1 is driven, the rolling soil scraping roller 1 starts to rotate, and the soil scraping teeth of the rolling soil scraping roller 1 are inserted into soil. With the advance of the harvester, the excavated dwarf lilyturf tuber and soil thereof are conveyed backwards along the side wall of the shovel tooth and fall onto the conveying chain plate 15.

A conveying procedure: the excavated dwarf lilyturf tuber and soil thereof are conveyed backwards and fall onto a conveying chain plate 15. The power output from the power output shaft of the tractor is transmitted to the secondary tooth type soil crushing roller 5 in a chain transmission mode, then the tooth type soil crushing roller 3 is driven to rotate, and meanwhile materials are conveyed on the conveying chain plate 15. In the conveying process, the first vibration shaft driving sprocket drives a part of power to rotate through the first vibration shaft driven sprocket, the conveying chain plate 15 starts to vibrate under the action of the first vibration wheel 30, and meanwhile, the secondary tooth type soil crushing roller 5 above the conveying chain plate 15 starts to rotate to perform auxiliary crushing on soil. The loose soil falls through the gaps between the link plates of the conveyor link plate 15 into the field, and the rest of the material is conveyed by the conveyor link plate 15 to the screening device 8.

A screening process: the materials conveyed by the conveying device 4 fall onto the screening chain plate 21, a part of power output by the second vibration shaft driving chain wheel drives the second vibration shaft driven chain wheel to rotate in a chain transmission mode, the screening chain plate 21 vibrates under the action of the second vibration wheel 14, the screening chain plate 21 continuously collides and adheres to soil in the rising and falling processes of the radix ophiopogonis and the soil, meanwhile, the power output by the power output shaft of the tractor drives the rubber tooth roller 31 to rotate in a chain transmission mode, the soil is separated from the radix ophiopogonis, the separated soil falls into the field through sieve holes, and the radix ophiopogonis are gathered towards the collecting device 22.

A collection procedure: the lilyturf root falls into the collection box by its own weight through the collection means 22.