Stem and leaf double-harvesting type wormwood combine harvester

Abstract

The invention discloses a stem and leaf double-harvesting type wormwood combine harvester which comprises a harvesting device, a harvesting lifting platform, a wheel type chassis, a harvesting bin set and a transmission system. The harvesting device comprises a rack, a reciprocating cutter installed at the bottom of the front end of the rack, an elastic tooth type roller installed in the middle of the rack, a plurality of sets of belt type clamping and conveying devices installed at the top of the rack and a plurality of sets of cutting discs installed at the top of the rear end of the rack. The belt type clamping and conveying system comprises dividers, a belt drive, a tensioning wheel and a belt drive mounting plate; the rack is fixedly connected to the harvesting lifting platform; the harvesting lifting platform is fixedly connected to the wheel type chassis; the stock bin group comprises a folium artemisiae argyi collecting bin and a stalk collecting bin; the transmission system drives the reciprocating type cutter, the elastic tooth type roller, the belt type clamping and conveying device and the disc cutter set. The device can adapt to one-time harvesting, defoliation and classified collection of folium artemisiae argyi and stalks of wormwood with different plant heights, value maximization of wormwood harvesting products is achieved, meanwhile, manpower and material resources are saved, and the labor productivity is improved.

Description

Technical Field

[0001] The invention relates to a stem-and-leaf double-harvesting mugwort combine harvester, belonging to the field of agricultural harvesting machinery and equipment. Background Art

[0002] Mugwort is a traditional high-quality medicinal material in my country. It is a perennial herb or slightly semi-shrubby plant of the genus Artemisia in the Asteraceae family. Both the leaves and stems of mugwort can be used as medicine, and are widely used in warming the meridians, removing dampness, expelling cold, stopping bleeding, reducing inflammation, relieving asthma, and relieving coughs. It has extremely high medicinal value.

[0003] With the continuous expansion of the mugwort industry, the scale of mugwort cultivation has increased rapidly. At present, most of the machine harvesting of mugwort is a two-stage harvesting, and most of the leaves are removed manually, which has problems such as long harvesting time and high labor intensity. There are few special models for mugwort combined harvesting, and most of them are replaced by other crop harvesters, but they still fail to achieve the purpose of harvesting both stems and leaves, which is not conducive to maximizing the value of mugwort and the subsequent growth of mugwort.

[0004] Therefore, a double-stem and leaf-harvesting mugwort combine harvester is designed to adapt to mugworts of different plant heights. It can harvest, remove leaves, and classify and collect mugwort leaves and stems at one time, thereby maximizing the value of mugwort harvested products. At the same time, it saves manpower and material resources, improves labor productivity, and provides support for the high-quality development of the mugwort industry. Summary of the invention

[0005] The purpose of the present invention is to provide a double-stem and leaf-harvesting mugwort combine harvester to adapt to mugworts of different plant heights, and to complete the harvesting, defoliation, and classification and collection of mugwort leaves and stems of mugwort at one time, thereby maximizing the value of the mugwort harvested products, while saving manpower and material resources, improving labor productivity, and providing support for the high-quality development of the mugwort industry.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A stem and leaf double-harvesting mugwort combine harvester, comprising a harvesting device, a harvesting bin group, a harvesting lifting platform, a wheeled chassis, and a transmission system; The harvesting device comprises a frame, a reciprocating cutter installed at the bottom of the front end of the frame, a spring-toothed roller installed in the middle of the frame, a plurality of groups of belt-type clamping conveying devices A and belt-type clamping conveying devices B installed at the top of the frame, and a disc knife group installed at the top of the rear end of the frame; The reciprocating cutter is arranged at the bottom of the front end of the frame, and the reciprocating cutter performs reciprocating cutting operation under the drive of the cutter drive shaft and the crank rocker mechanism arranged on the side plate of the frame; The belt-type clamping conveyor device A comprises a belt driving roller, a belt supporting plate, a tensioning wheel, a crop divider, a belt driven wheel, a belt, a belt driving shaft, and two conveying mounting plates, the upper part and the lower part of the belt-type clamping conveyor device A; the belt driving roller is mounted on the conveying mounting plate through a bearing seat with a bearing; the belt supporting plate is mounted on the middle edge of the conveying mounting plate through bolts, and the belt supporting plate is in close contact with the belt; the tensioning wheel and the belt driven wheel are both mounted on the conveying mounting plate through nuts; the conveying mounting plate is fixedly connected to the top of the frame; the crop divider is fixedly connected to the upper and lower conveying mounting plates; the surface of the belt has patterns; The spring-toothed roller is provided with staggered spring teeth, and the spring-toothed roller is mounted on the side plate of the frame 17; The disc knife assembly comprises a disc knife assembly mounting plate, a disc knife, a plurality of disc knife drive shafts, and a disc knife mounting cover; the disc knife drive shaft is mounted on the disc knife assembly mounting plate through a seat bearing, and the disc knives are divided into two groups and one group and are alternately mounted on the disc knife drive shaft through the disc knife mounting cover 37; The harvesting bin group includes a stalk collection bin installed at the rear end of the frame and a mugwort collection bin installed at the rear end of the wheeled chassis 3; The stalk collection bin comprises a No. 1 bin door and a No. 1 cubic bin; the No. 1 bin door is installed on both sides of the rear end of the No. 1 cubic bin through hinges; The wormwood collection bin comprises a "7"-shaped feeding inlet with openings at both ends, a No. 2 cubic bin, a No. 2 bin door, a wormwood collection bottom plate, and a feeding auger; a rectangular groove is opened at the upper end of the No. 2 cubic bin, an arched hole is opened at the front end of the No. 2 cubic bin 44, and the No. 2 bin door is installed on the rear end side of the No. 2 cubic bin 44 through a hinge; the lower end opening of the "7"-shaped feeding inlet is fixedly connected to the rectangular groove of the No. 2 cubic bin; the wormwood collection bottom plate is fixedly connected to the bottom end of the frame; The harvesting lifting platform includes two lifting groups, a lifting platform drive shaft, and a lifting platform drive turntable; The lifting group includes a first bevel gear, a support cap, two worm gear boxes, a worm gear box connecting shaft, and a lifting threaded rod; the support cap is fixed to the top of the lifting threaded rod, and the center of the turbine in the worm gear box is provided with a thread to cooperate with the lifting threaded rod 55; both ends of the worm gear box connecting shaft are provided with hole grooves and key grooves, and both ends of the worm gear box connecting shaft 54 ​​are directly connected to the worm shaft on the worm gear box; the first bevel gear is installed on one end of the worm shaft on the worm gear box; the first bevel gear is installed on the worm shaft at one end of the lifting group; The lifting platform drive shaft is installed on the wheeled chassis through a bearing, and two No. 1 bevel gears are arranged on the lifting platform drive shaft. The two lifting groups cooperate with the No. 1 bevel gear on the lifting platform drive shaft through the No. 1 bevel gear to form a harvesting lifting platform; the lifting platform drive turntable is fixedly connected to one end of the lifting platform drive shaft; The transmission system drives the reciprocating cutter, the spring-toothed roller, the type clamping and conveying device A, the belt type clamping and conveying device B, and the disc cutter group.

[0007] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses a clamping conveyor belt and a spring-toothed roller to remove the leaves of mugwort, so that the spring teeth hit the petioles of mugwort against the growth direction of the mugwort, which is conducive to the shedding of the petioles of the mugwort and improves the defoliation rate of the mugwort.

[0008] (2) The harvesting device of the present invention adopts a two-step cutting harvesting method. The first cutting is performed by a reciprocating cutter located at the bottom of the front end of the frame to cut the wormwood stems near the ground. The second cutting is performed after the wormwood leaves on the main stems are defoliated. The wormwood tips are conveyed to the disc knife group at the top of the rear end of the frame under the action of the clamping conveyor belt. The disc knife group cuts the wormwood tips, and the tips enter the wormwood collection bin. The defoliated stems enter the stem collection box. The harvesting, defoliation, and classification and collection of wormwood leaves and stems are completed at one time, thereby maximizing the value of the wormwood harvested products.

[0009] (3) The present invention adopts a harvesting lifting platform to realize the lifting and lowering of the harvesting device, ensuring that the stem and leaf double-harvesting mugwort combine harvester can adapt to mugwort of different growth heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the harvesting device and the transmission system of the present invention; Figure 3 It is a schematic side view of the structure of the harvesting device and the transmission system of the present invention; Figure 4 It is a structural schematic diagram of the reciprocating cutter of the present invention; Figure 5 It is a structural schematic diagram of the belt-type clamping and conveying device A of the present invention; Figure 6 It is a structural schematic diagram of the disc cutter assembly of the present invention; Figure 7 It is a structural schematic diagram of the harvesting bin group of the present invention; Figure 8 It is a structural schematic diagram of the mugwort leaf collection bin of the present invention; Fig. 9It is a structural schematic diagram of the stalk collection bin of the present invention; Fig.10 It is a structural schematic diagram of the harvesting lifting platform of the present invention; Fig.11 It is a structural schematic diagram of the lifting group of the present invention; Fig.12 It is a structural schematic diagram of the main shaft of the transmission system of the present invention; In the figure: 1-harvesting device, 2-harvesting lifting platform, 3-wheeled chassis, 4-harvesting bin group, 5-transmission system, 6-belt clamping conveyor device B, 7-No. 2 transmission chain, 8-No. 2 sprocket, 9-No. 1 transmission chain, 10-No. 3 sprocket, 11-side plate, 12-transmission system main shaft, 13-No. 3 transmission chain, 14-belt clamping conveyor device A, 15-disc knife group, 16-spring teeth, 17-machine Frame, 18-reciprocating cutter, 19-spring-toothed roller, 20-cutter drive shaft, 21-crank rocker mechanism, 22-belt active roller, 23-belt support plate, 24-tensioning wheel, 25-tensioning screw assembly, 26-grain divider, 27-belt driven wheel, 28-wheel spindle, 29-deep groove ball bearing, 30-belt, 31-belt drive shaft, 32-transmission mounting plate, 33-fourth sprocket , 34-disc knife assembly mounting plate, 35-disc knife, 36-disc knife drive shaft, 37-disc knife mounting cover, 38-wormwood collection bin, 39-stem collection bin, 40-"7" shaped feeding inlet, 41-feeding auger, 42-wormwood collection bottom plate, 43-arch hole, 44-No. 2 cubic bin, 45-No. 2 bin door, 46-"V" type arch surface, 47-No. 1 cubic bin, 48-No. 1 bin door, 4 9-arched channel, 50-lifting platform driving turntable, 51-No. 1 bevel gear, 52-lifting platform driving shaft, 53-lifting group, 54-worm gear box connecting shaft, 55-lifting threaded rod, 56-worm shaft, 57-worm gear box, 58-support cap, 59-No. 1 sprocket, 60-transmission main shaft, 61-power input sprocket, 62-No. 2 bevel gear, 63-transmission system main shaft mounting ear. DETAILED DESCRIPTION

[0011] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0012] like Figure 1-12 As shown, a stem-leaf double-harvest mugwort combine harvester comprises a harvesting device 1, a harvesting bin group 4, a harvesting lifting platform 2, a wheeled chassis 3, and a transmission system 5; The harvesting device 1 includes a frame 17, a reciprocating cutter 18 installed at the bottom of the front end of the frame 17, a spring-toothed roller 19 installed in the middle of the frame 17, a plurality of groups of belt-type clamping conveying devices A14 and belt-type clamping conveying devices B6 installed at the top of the frame 17, and a disc knife group 15 installed at the top of the rear end of the frame 17; The reciprocating cutter 18 is arranged at the bottom of the front end of the frame 17. The reciprocating cutter 18 is driven by the cutter drive shaft 20 and the crank rocker mechanism 21 arranged on the side plate 11 of the frame 17 to perform a reciprocating cutting operation at a position of 10 to 15 cm above the ground of the wormwood; The belt clamping conveyor A14 comprises a belt driving roller 22, a belt supporting plate 23, a tensioning wheel 24, a crop divider 26, a belt driven wheel 27, a belt 30, a belt driving shaft 31, and two conveying mounting plates 32 at the upper and lower parts of the belt clamping conveyor A14; the belt driving roller 22 is mounted on the conveying mounting plate 32 through a bearing seat with a bearing; the belt supporting plate 23 is mounted on the middle edge of the conveying mounting plate 32 by bolts, and the belt supporting plate 23 is in close contact with the belt 30; the tensioning wheel 24 and the belt driven wheel 27 are both mounted on the conveying mounting plate 32 by nuts; the conveying mounting plate 32 is fixedly connected to the top of the frame 17; the crop divider 26 is fixedly connected to the upper and lower conveying mounting plates 32; the surface of the belt 30 has a pattern; The spring-toothed roller 19 is provided with staggered spring teeth 16, and the spring-toothed roller 19 is mounted on the side plate 11 of the frame 17; The disc knife group 15 includes a disc knife group mounting plate 34, a disc knife 35, a plurality of disc knife drive shafts 36, and a disc knife mounting cover 37; the disc knife drive shaft 36 is mounted on the disc knife group mounting plate 34 through a seat bearing, and the disc knives 35 are divided into two groups and one group and are alternately mounted on the disc knife drive shaft 36 through the disc knife mounting cover 37; The harvesting bin group 4 includes a stem collecting bin 39 installed at the rear end of the frame 17 and a mugwort collecting bin 38 installed at the rear end of the wheeled chassis 3; The stalk collection bin 39 includes a bin door 48 and a cubic bin 47; the bin door 48 is hingedly mounted on both sides of the rear end of the cubic bin 47; The wormwood collection bin 38 includes a "7"-shaped feeding inlet 40 with openings at both ends, a No. 2 cubic bin 44, a No. 2 bin door 45, a wormwood collection bottom plate 42, and a feeding auger 41; a rectangular groove is opened at the upper end of the No. 2 cubic bin 44, an arched hole 43 is opened at the front end of the No. 2 cubic bin 44, and the No. 2 bin door 45 is installed on the rear end side of the No. 2 cubic bin 44 through a hinge; the lower end opening of the "7"-shaped feeding inlet 40 is fixedly connected to the rectangular groove of the No. 2 cubic bin 44; the wormwood collection bottom plate 42 is fixedly connected to the bottom end of the frame 17; The harvesting lifting platform 2 includes two lifting groups 53, a lifting platform drive shaft 52, and a lifting platform drive turntable 50; The lifting group 53 includes a first bevel gear 51, a support cap 58, two worm gear boxes 57, a worm gear box connecting shaft 54, and a lifting threaded rod 55; the support cap 58 is fixedly connected to the top of the lifting threaded rod 55, and the center of the turbine in the worm gear box 57 is provided with a thread to cooperate with the lifting threaded rod 55; both ends of the worm gear box connecting shaft 54 ​​are provided with hole grooves and key grooves, and both ends of the worm gear box connecting shaft 54 ​​are directly connected to the worm shaft 56 on the worm gear box 57; the first bevel gear 51 is installed on one end of the worm shaft 56 on the worm gear box 57; the first bevel gear 51 is installed on the worm shaft 56 at one end of the lifting group 53; The lifting platform drive shaft 52 is installed on the wheeled chassis 3 through a bearing, and two first bevel gears 51 are arranged on the lifting platform drive shaft 52. The two lifting groups 53 cooperate with the first bevel gear 51 on the lifting platform drive shaft 52 through the first bevel gear 51 to form a harvesting lifting platform 2; the lifting platform drive turntable 50 is fixedly connected to one end of the lifting platform drive shaft 52; The transmission system 5 drives the reciprocating cutter 18 , the spring-toothed roller 19 , the clamping and conveying device A34 , the belt clamping and conveying device B6 , and the disc knife assembly 15 .

[0013] As a preferred solution of the present invention, the tensioning wheel 24 has the same structure as the belt driven wheel 27. The tensioning wheel 24 includes a wheel spindle 28, four deep groove ball bearings 29, and a tensioning screw assembly 25. Both ends of the wheel spindle 28 are provided with threads and are mounted on the conveying mounting plate 32 through nuts. The deep groove ball bearings 29 are mounted on the wheel spindle 28. The tensioning screw assembly 25 is fixedly connected to the upper conveying mounting plate 32. The belt driven wheel 27 and the reciprocating cutter 18 are on the longitudinal plane. As a preferred embodiment of the present invention, the belt-type clamping conveyor device B6 includes a set of belt drives that are the same as the belt-type clamping conveyor device A14, and the belt-type clamping conveyor device B6 is located on both sides of the harvesting device 1; As a preferred embodiment of the present invention, the belt-type clamping conveyor device A14 includes two groups of left and right belt transmissions; a clamping gap is left between the belts of the two belt-type clamping conveyor devices A14 or between the belt-type clamping conveyor device B6 and the belt-type clamping conveyor device A14, and the conveyor belt grabs the tip of the wormwood and conveys it backwards under the guidance of the grass divider; As a preferred embodiment of the present invention, the turning radius of the spring teeth 16 of the spring-toothed roller 19 is slightly smaller than the vertical distance from the installation position of the spring-toothed roller 19 to the lower end of the belt-type clamping conveyor device A14; As a preferred embodiment of the present invention, the single group of disc knives 35 and the two groups of disc knives 35 are paired with each other, and the single group of disc knives 35 is clamped in the gap formed by the two groups of disc knives 35. The intersection formed by the disc knives 35 is just located in the assembly between the belts of the two belt clamping conveyor devices A14 or the assembly between the belt clamping conveyor device B6 and the belt clamping conveyor device A14. The upper end surface of the disc knife 35 is on the same horizontal plane as the highest position of the spring teeth 16 of the spring-toothed roller 19, and the tips of the wormwood that have not been defoliated by the spring-toothed roller 19 are cut; As a preferred embodiment of the present invention, a "V"-shaped arch surface 46 is provided inside the first cubic bin 47. After the tips of the mugwort are cut off by the disc knife, the stems thereof slide along the "V"-shaped arch surface 46 to the vicinity of the door of the stem collection bin 39; an arched passage 49 is provided in the middle of the bottom of the first cubic bin 47; As a preferred embodiment of the present invention, the feeding auger 41 is located in the channel formed by the moxa leaf collecting bottom plate 42 and the arched channel 49, and the output end of the feeding auger 41 is arranged at the arched hole 43 at the front end of the second cubic bin 44. The moxa leaves knocked down by the spring-toothed roller 19 enter the moxa leaf collecting bin 38 through the arched channel 49 and the arched hole 43 under the action of the feeding auger 41; As a preferred solution of the present invention, the initial positions of the support caps 26 at the top of the lifting threaded rods 55 are in the same plane, ensuring that the harvesting device 1 is in a horizontal state, which is conducive to the harvesting of mugwort; the harvesting lifting platform 2 is fixedly connected to the bottom of the frame 17 through the support cap; As a preferred solution of the present invention, the transmission system 5 includes a transmission system main shaft 12, a second sprocket 8, a third sprocket 10, a fourth sprocket 33, a first transmission chain 9, a second transmission chain 7, and a third transmission chain 13; The transmission system main shaft 12 includes a transmission main shaft 60, a power input sprocket 61, a transmission system main shaft mounting ear 63, a second bevel gear 62, and a first sprocket 59. The transmission system main shaft 12 is fixedly connected to the upper rear end of the frame 17 through the transmission system main shaft mounting ear 63; the second bevel gear 62 is arranged on the transmission main shaft 60 and the lower end of the belt drive shaft 31 according to the installation position of the disc cutter 35, and the second bevel gears 62 on the two shafts are meshed with each other; the power input sprocket 61 and the first sprocket 59 are respectively installed on the left end and the right end of the transmission main shaft 60; The power input sprocket 61 obtains the power drive transmission system main shaft 12 from the wheeled chassis 3, the second sprocket 8 is a double-row sprocket, the second sprocket 8 is installed on the spring-toothed roller 19 shaft, the third sprocket 10 is installed on the spring-toothed roller 19 shaft on the cutter drive shaft 20, and the fourth sprocket 33 is installed on the second bevel gear 62 on the belt drive shaft 31 and on the disc cutter drive shaft 36; The No. 1 transmission chain 9 is sleeved between the No. 2 sprocket 8 and the No. 3 sprocket 10, the No. 2 transmission chain 7 is sleeved between the No. 1 sprocket 59 and the No. 2 sprocket 8, and the No. 3 transmission chain 13 is sleeved between the No. 4 sprocket 33 on the No. 2 bevel gear 62 on the belt drive shaft 31 and the No. 4 sprocket 33 on the disc knife drive shaft 36.

[0014] Working process of the present invention: When the stem-and-leaf double-harvesting mugwort combine harvester of the present invention is operated in a mugwort field, first, the lifting platform is rotated to drive the turntable to adjust the harvesting device to a height equivalent to the mugwort tip; then, the harvester is started, and under the drive of the transmission system, the reciprocating cutter, the spring-toothed roller, the clamping conveyor belt, and the disc knife group start to operate, and the harvester moves forward; then, the reciprocating cutter cuts the mugwort at the stalks near the ground, and while cutting, the grain divider divides the grains and guides the mugwort tip into the clamping conveyor belt The mugwort is clamped in the gap and transported backwards. When the mugwort reaches the spring-toothed drum, the mugwort leaves below the tip of the mugwort are struck by the centrifugal force of the spring teeth and fall off in the reverse direction. The fallen mugwort leaves are transported to the mugwort collection box through the feeding auger. The mugwort continues to be transported backwards with the conveyor belt and reaches the disc knife group. The disc knife cuts off the un-leafed mugwort tips and the mugwort stems fall directly into the stem collection box. The mugwort tips follow the conveyor belt to the end of the conveyor belt and fall into the mugwort collection box through the "7"-shaped feeding inlet, thereby completing the double collection of mugwort stems and leaves.

[0015] The specific embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A stem and leaf double-harvesting mugwort combine harvester, characterized in that: It comprises a harvesting device (1), a harvesting bin group (4), a harvesting lifting platform (2), a wheeled chassis (3), and a transmission system (5); The harvesting device (1) comprises a frame (17), a reciprocating cutter (18) mounted at the bottom of the front end of the frame (17), a spring-toothed roller (19) mounted at the middle of the frame (17), a plurality of groups of belt-type clamping conveying devices A (14) and belt-type clamping conveying devices B (6) mounted at the top of the frame (17), and a disc knife group (15) mounted at the top of the rear end of the frame (17); The reciprocating cutter (18) performs reciprocating cutting operation under the drive of the cutter drive shaft (20) and the crank rocker mechanism (21) arranged on the side plate (11) of the frame (17); The belt-type clamping conveyor device A (14) comprises a belt driving roller (22), a belt supporting plate (23), a tensioning wheel (24), a grain divider (26), a belt driven wheel (27), a belt (30), a belt driving shaft (31), and two conveying mounting plates (32) at the upper and lower parts of the belt-type clamping conveyor device A (14); the belt driving roller (22) is mounted on the conveying mounting plate (32) through a bearing seat with a bearing; the belt supporting plate (23) is mounted on the middle edge of the conveying mounting plate (32) through bolts, and the belt supporting plate (23) is in close contact with the belt (30); the tensioning wheel (24) and the belt driven wheel (27) are both mounted on the conveying mounting plate (32) through nuts; the conveying mounting plate (32) is fixedly connected to the top of the frame (17); the grain divider (26) is fixedly connected to the upper and lower conveying mounting plates (32); the surface of the belt (30) has a pattern; The spring-toothed roller (19) is provided with staggered spring teeth (16), and the spring-toothed roller (19) is mounted on a side plate (11) of a frame (17); The disc knife assembly (15) comprises a disc knife assembly mounting plate (34), a disc knife (35), a plurality of disc knife drive shafts (36), and a disc knife mounting cover (37); the disc knife drive shafts (36) are mounted on the disc knife assembly mounting plate (34) via seat bearings, and the disc knives (35) are divided into two groups and one group, which are alternately mounted on the disc knife drive shafts (36) via the disc knife mounting cover (37); The harvesting bin group (4) comprises a stalk collection bin (39) installed at the rear end of the frame (17) and a mugwort leaf collection bin (38) installed at the rear end of the wheeled chassis (3); The stalk collection bin (39) comprises a bin door (48) and a cubic bin (47); the bin door (48) is installed on both sides of the rear end of the cubic bin (47) via hinges; The wormwood collection bin (38) comprises a "7"-shaped feeding inlet (40) with openings at both ends, a No. 2 cubic bin (44), a No. 2 bin door (45), a wormwood collection bottom plate (42), and a feeding auger (41); a rectangular groove is opened at the upper end of the No. 2 cubic bin (44), an arched hole (43) is opened at the front end of the No. 2 cubic bin (44), and the No. 2 bin door (45) is installed on the rear end side of the No. 2 cubic bin (44) through a hinge; the lower end opening of the "7"-shaped feeding inlet (40) is fixedly connected to the rectangular groove of the No. 2 cubic bin (44); the wormwood collection bottom plate (42) is fixedly connected to the bottom end of the frame (17); The harvesting lifting platform (2) comprises two lifting groups (53), a lifting platform drive shaft (52), and a lifting platform drive turntable (50); The lifting group (53) comprises a first bevel gear (51), a support cap (58), two turbine worm gear boxes (57), a turbine worm gear box connecting shaft (54), and a lifting threaded rod (55); the support cap (58) is fixedly connected to the top of the lifting threaded rod (55), and the center of the turbine in the turbine worm gear box (57) is provided with a thread to cooperate with the lifting threaded rod (55); both ends of the turbine worm gear box connecting shaft (54) are provided with hole grooves and key grooves, and both ends of the turbine worm gear box connecting shaft (54) are directly connected to the worm shaft (56) on the turbine worm gear box (57); the first bevel gear (51) is installed on one end of the worm shaft (56) on the turbine worm gear box (57); the first bevel gear (51) is installed on the worm shaft (56) at one end of the lifting group (53); The lifting platform drive shaft (52) is mounted on the wheeled chassis (3) via a bearing, two first bevel gears (51) are arranged on the lifting platform drive shaft (52), and the two lifting groups (53) cooperate with the first bevel gear (51) on the lifting platform drive shaft (52) through the first bevel gear (51) to form a harvesting lifting platform (2); the lifting platform drive turntable (50) is fixedly connected to one end of the lifting platform drive shaft (52); The transmission system (5) drives the reciprocating cutter (18), the spring-toothed roller (19), the clamping and conveying device A (34), the belt clamping and conveying device B (6), and the disc knife group (15).

2. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The tensioning wheel (24) has the same structure as the belt driven wheel (27). The tensioning wheel (24) comprises a wheel main shaft (28), four deep groove ball bearings (29), and a tensioning screw assembly (25); threads are provided at both ends of the wheel main shaft (28) and are mounted on the conveying mounting plate (32) through nuts, the deep groove ball bearings (29) are mounted on the wheel main shaft (28), and the tensioning screw assembly (25) is fixedly connected to the upper conveying mounting plate (32); the belt driven wheel (27) and the reciprocating cutter (18) are on the longitudinal plane.

3. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The belt-type clamping and conveying device B (6) comprises a group of belt drives identical to the belt-type clamping and conveying device A (14), and the belt-type clamping and conveying device B (6) is located on both sides of the harvesting device (1).

4. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The belt-type clamping conveyor device A (14) includes two left and right belt transmission groups; a clamping gap is left between the belts of the two belt-type clamping conveyor devices A (14) or between the belts of the belt-type clamping conveyor device B (6) and the belt of the belt-type clamping conveyor device A (14).

5. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The turning radius of the spring teeth (16) of the spring-toothed roller (19) is smaller than the vertical distance from the installation position of the spring-toothed roller (19) to the lower end of the belt-type clamping conveying device A (14).

6. The stem-and-leaf double-harvesting mugwort combine harvester according to claim 1 and claim 4, characterized in that: The single group of disc cutters (35) and the two groups of disc cutters (35) form a pair with each other. The single group of disc cutters (35) is clamped in the gap formed by the two groups of disc cutters (35). The intersection formed by the disc cutters (35) is just located in the clamping gap between the belts of the two belt clamping conveying devices A (14) or between the belt clamping conveying device B (6) and the belt of the belt clamping conveying device A (14). The upper end surface of the disc cutter (35) and the highest position of the spring teeth (16) of the spring-toothed roller (19) are on the same horizontal plane.

7. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: A "V"-shaped arch surface (46) is provided inside the first cubic bin (47), and an arched passage (49) is provided in the middle of the bottom of the first cubic bin (47).

8. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The feed auger (41) is located in a channel formed by the moxa leaf collecting bottom plate (42) and the arched channel (49), and the output end of the feed auger (41) is arranged at the arched hole (43) at the front end of the second cubic bin (44).

9. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The initial positions of the support caps (26) at the top ends of the lifting threaded rods (55) are in the same plane, and the harvesting lifting platform (2) is fixedly connected to the bottom of the frame (17) via the support caps.

10. The stem and leaf double-harvesting mugwort combine harvester according to claim 1, characterized in that: The transmission system (5) comprises a transmission system main shaft (12), a second sprocket (8), a third sprocket (10), a fourth sprocket (33), a first transmission chain (9), a second transmission chain (7), and a third transmission chain (13); The transmission system main shaft (12) comprises a transmission main shaft (60), a power input sprocket (61), a transmission system main shaft mounting ear (63), a second bevel gear (62), and a first sprocket (59); the transmission system main shaft (12) is fixedly connected to the upper rear end of the frame (17) through the transmission system main shaft mounting ear (63); the second bevel gear (62) is arranged on the transmission main shaft (60) and the lower end of the belt drive shaft (31) according to the installation position of the disc knife (35), and the second bevel gears (62) on the two shafts are meshed with each other; the power input sprocket (61) and the first sprocket (59) are respectively installed at the left end and the right end of the transmission main shaft (60); The power input sprocket (61) obtains the power drive transmission system main shaft (12) from the wheeled chassis (3); the second sprocket (8) is a double-row sprocket, the second sprocket (8) is mounted on the spring-toothed roller (19) shaft, the third sprocket (10) is mounted on the spring-toothed roller (19) shaft on the cutter drive shaft (20), and the fourth sprocket (33) is mounted on the second bevel gear (62) on the belt drive shaft (31) and on the disc cutter drive shaft (36); The first transmission chain (9) is sleeved between the second sprocket (8) and the third sprocket (10), the second transmission chain (7) is sleeved between the first sprocket (59) and the second sprocket (8), and the third transmission chain (13) is sleeved between the fourth sprocket (33) on the second bevel gear (62) on the belt drive shaft (31) and the fourth sprocket (33) on the disc knife drive shaft (36).

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