CN210183917U

CN210183917U - Tobacco leaf harvester

Info

Publication number: CN210183917U
Application number: CN201920504562.8U
Authority: CN
Inventors: Congcong Yang; 杨丛丛; Tao Wu; 吴涛; Wumeng Xie; 谢武猛
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-03-27
Anticipated expiration: 2029-04-15

Abstract

The utility model relates to a tobacco leaf harvester, which comprises a vehicle rack, the front wheel, the rear wheel, the goods fill, reaping apparatus, conveyor, power device, front wheel of frame front end installation, two rear wheels of frame rear end both sides installation, install reaping apparatus on the frame between front wheel and the rear wheel, reaping apparatus reaps and carries to conveyor in to the tobacco, conveyor one end is fixed at the reaping apparatus downside, the conveyor other end stretches into in the goods fill, conveyor carries the tobacco that reaping apparatus reaped to the goods fill in, the tail end at the frame is installed to the goods fill, the goods fill bottom adopts the collection and the unloading of the tobacco of being convenient for of inclined plane design to put, power device installs on rear wheel upside frame, the removal that the harvester was realized to power device drive rear wheel rotation. The utility model discloses can control reaping apparatus's terrain clearance carries out the layering to the tobacco leaf and reaps to reach the purpose of reaping the not co-altitude tobacco leaf, and can improve and reap efficiency, reduce the labour loss.

Description

Tobacco leaf harvester

Technical Field

The utility model relates to a tobacco leaf harvester belongs to the agricultural machine field.

Background

The tobacco leaf harvester is a tool suitable for tobacco agricultural machinery, and can harvest and convey tobacco leaves under mature or proper conditions. The tobacco leaf harvesters on the market at present are divided into two types, namely an automatic tobacco leaf harvester and a semi-automatic manual auxiliary tobacco leaf harvester, wherein the automatic tobacco leaf harvester is high in harvesting efficiency and low in labor demand, but has large damage to tobacco leaves, and the tobacco leaves cannot be processed in the later period; the semi-automatic tobacco leaf harvester is less to the damage of tobacco leaf, but reaps inefficiency, and the labour demand is big. In order to make up for the gap of tobacco leaf harvesting mechanization in modern tobacco agriculture, it is important to design a tobacco leaf harvester with better comprehensive performance applied to tobacco planting.

Disclosure of Invention

The utility model provides a tobacco leaf harvester to be used for realizing through this harvester that the tobacco of highly difference carries out the layering and reaps.

The utility model adopts the technical scheme that: a tobacco leaf harvester comprises a frame 8, front wheels 5, rear wheels 7, a cargo bucket 1, a harvesting device 12, a conveying device 2 and a power device 15;

front wheel 5 of 8 front end installations of frame, rear wheel 7 is installed respectively to 8 rear end both sides of frame, install reaping apparatus 12 on the frame 8 between front wheel 5 and the rear wheel 7, reaping apparatus 12 reaps the tobacco and carries to conveyor 2 in, 2 one ends of conveyor are fixed at 12 downside of reaping apparatus, the 2 other end of conveyor stretches into in the goods fill 1, conveyor 2 carries the tobacco that reaping apparatus 12 reaped to the goods fill 1 in, the tail end at frame 8 is installed to goods fill 1, the collection and the unloading of the tobacco of adopting the inclined plane design to be convenient for are fought to 1 bottom of goods fill, power device 15 installs on 7 upside frames 8 of rear wheel, power device 15 drives rear wheel 7 and rotates the removal that realizes the harvester.

The front wheel 5 is fixed on the front wheel transmission shaft 14 through a roller bearing and is arranged on the frame 8, the two rear wheels 7 are respectively fixed on the two rear wheel transmission shafts 29 through bolts and are arranged on the frame 8, and the rear wheel transmission shafts 26 are provided with chain wheels II 29.

Harvesting device 12 is including reaping part I, reap part II, reap part III, reap part IV, hydraulic pressure elevating gear 6, reap part I, reap part II, reap part III, it is the same with reap part III structure, it links together to reap part II and reap part III, it places relatively to reap part I and reap part II, it places relatively to reap part IV and reap part III, reap part I, reap part II, reap part III, it all is connected and realizes elevating movement through the drive of hydraulic pressure elevating gear 6 with hydraulic pressure elevating gear to reap part IV.

The harvesting part I comprises a bracket I21, a bracket II 27, a bracket III 11, a conveying roller 18, a direct current motor 19, a small chain 20, a chain wheel III 28, a harvesting knife 10, a rubber guide strip 17 and a motor fixing plate 13; the bracket I21 consists of a transverse edge, a lower bottom edge, an upper bottom edge, a vertical edge I and a vertical edge II, one end of the transverse edge is connected with one end of the vertical edge I, the other end of the vertical edge I is connected with one end of the lower bottom edge in an angle inclined manner, the other end of the lower bottom edge is a free end, the other end of the transverse edge is connected with one end of the vertical edge II, the other end of the vertical edge II is connected with one end of the upper bottom edge, a folding knife 10 is installed at the other end of the upper bottom edge, the bracket II 27 consists of a side edge and a bottom edge, the lower end of the side edge is connected with one end of the bottom edge in an angle inclined manner, the other end of the bottom edge is a free end, more than five conveying rollers 18 are installed between the lower bottom edge of the bracket I21 and the bottom edge of the bracket II 27, a chain wheel III 28 is installed at one end of the conveying roller, the free end of the bottom edge of the bracket II 27 is provided with a bent rubber guide strip 17, and the bracket I21 and the bracket II 27 are respectively fixed on the two brackets III 11.

Reap part II and reap part III and be connected through support III 11, reap part I, reap part II, reap part III, reap part IV and all be connected with hydraulic pressure elevating gear 6 through support III 11, be equipped with the guide rail on the support III 11, cooperate with the guide slot on the frame 8 and install reaping apparatus 12 on frame 8 to make reaping apparatus 12 can reciprocate along the guide rail direction.

The harvesting knife 10 comprises a steel wire cutting knife 22, a plug pin 23, knife rests 24, idler wheels 25 and a motor 46, the idler wheels 25 are fixed on four corners of the knife rests 24 through the plug pin 23, the steel wire cutting knife 22 is fixed on the four idler wheels 25 around a circle, the motor 46 is installed on one idler wheel 25 and used for driving the steel wire cutting knife 22 to rotate, and the knife rests 24 are installed on a support I21.

Conveyor 2 includes conveying mechanism I, conveying mechanism II, conveying mechanism III, conveying mechanism I, conveying mechanism II, III structures of conveying mechanism are the same and install on frame 8 with the same horizontal spacing distance, I input of conveying mechanism is fixed and is reaped the downside position of III 11 of support of part I in conveying device 2, II inputs of conveying mechanism are fixed and are reaped part II and reap the downside position of III 11 of support of part III in conveying device 2, III inputs of conveying mechanism are fixed and are reaped the downside position of III 11 of support of part IV in conveying device 2, I output of conveying mechanism, II outputs of conveying mechanism, III outputs of conveying mechanism all stretch into in the goods fill 1.

The conveying mechanism I comprises a conveying channel 34, a belt 30, small rollers 35, belt rollers I31, belt rollers II 16, a belt bogie I32 and a belt bogie II 33, wherein the conveying channel 34 is a channel with a rectangular cross section and is divided into an input end, an inclined channel and an output end, the input end is arranged at the lower side of the harvesting device 12, the rear end of the input end is connected with the bottom end of the inclined channel, the top end of the inclined channel is connected with the front end of the output end, the rear end of the output end extends into the cargo hopper 1, the belt rollers I31 are arranged on the bottom surface of the front end of the input end, the belt bogie I32 is arranged on the bottom surface of the connection part of the rear end of the input end and the bottom end of the inclined channel, the belt bogie II 33 is arranged on the bottom surface of the connection part of the inclined channel and the front end of the output end, the belt rollers, conveying belt 30 is installed on belt roller I31, belt bogie I32, belt bogie II 33, belt roller II 16, evenly is equipped with the arch in a row on conveying belt 30.

The power device 15 comprises a power mechanism I and a power mechanism II, wherein the power mechanism I and the power mechanism II have the same structure and are oppositely arranged on the frame 8 to respectively provide power for the two rear wheels 7.

The power mechanism I comprises a three-phase asynchronous speed reducing motor 9, a chain wheel I37, a double-row roller bearing 39, a large helical gear 40, a small helical gear 41, a transmission shaft 42, a shaft sleeve 43, a chain 38 and a chain cover 36, wherein the three-phase asynchronous speed reducing motor 9 is fixed on a frame 8, the small helical gear 41 is installed on a motor shaft, the transmission shaft 42 is installed on the frame 8 on one side of the three-phase asynchronous speed reducing motor 9 through the double-row roller bearing 39, the large helical gear 40 and the chain wheel I37 are respectively installed at two ends of the transmission shaft 42 through the shaft sleeve 43, the small helical gear 41 is in meshing transmission with the large helical gear 40, the chain wheel I37 is in transmission connection with the chain wheel II 26 on the rear wheel transmission shaft 29 on one side through the chain 38, and the chain cover 36 covers the chain.

The invention has the beneficial effects that: the tobacco leaf harvesting machine can control the ground clearance of the harvesting device to harvest tobacco leaves in a layered mode, so that the purpose of harvesting the tobacco leaves with different heights is achieved, the harvesting efficiency can be improved, and the labor loss is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the harvesting device of the present invention;

FIG. 3 is a schematic structural view of a bracket I, a bracket II and a bracket III in the harvesting device of the utility model;

FIG. 4 is a schematic view of the structure of the harvesting knife in the harvesting device of the present invention;

FIG. 5 is a schematic view of the installation of the DC motor and the chain wheel III in the harvesting device of the present invention;

fig. 6 is a schematic structural view of the conveying device of the present invention;

fig. 7 is a schematic view of the input end structure of the conveying device of the present invention;

fig. 8 is a schematic view of the structure of the output end of the conveying device of the present invention;

fig. 9 is a schematic structural view of the power device of the present invention;

fig. 10 is a schematic view of the installation of the headstock and the roof of the utility model;

the reference numbers in the figures are: 1-cargo bucket, 2-conveying device, 3-vehicle roof, 4-vehicle head, 5-front wheel, 6-hydraulic lifting device, 7-rear wheel, 8-vehicle frame, 9-three-phase asynchronous speed reducing motor, 10-harvesting knife, 11-support III, 12-harvesting device, 13-motor fixing plate, 14-front wheel transmission shaft, 15-transmission device, 16-belt roller II, 17-rubber guide strip, 18-conveying roller, 19-direct current motor, 20-small chain, 21-support I, 22-steel wire cutting knife, 23-plug pin, 24-knife rest, 25-roller, 26-chain wheel II, 27-support II, 28-chain wheel III, 29-rear wheel transmission shaft, 30-conveying belt, 31-belt roller I, 32-belt bogie I, 33-belt bogie II, 34-conveying channel, 35-small roller, 36-chain cover, 37-chain wheel, 38-chain, 39-double-row roller ball bearing, 40-large helical gear, 41-small helical gear, 42-transmission shaft, 43-shaft sleeve, 44-control panel, 45-seat and 46-motor.

Detailed Description

The invention will be further described with reference to the following drawings and examples, but the scope of the invention is not limited thereto.

Example 1: as shown in fig. 1-10, a tobacco leaf harvester comprises a frame 8, front wheels 5, rear wheels 7, a cargo bucket 1, a harvesting device 12, a conveying device 2 and a power device 15;

front wheel 5 of 8 front end installations of frame, rear wheel 7 is installed respectively to 8 rear end both sides of frame, install reaping apparatus 12 on the frame 8 between front wheel 5 and the rear wheel 7, reaping apparatus 12 reaps the tobacco and carries to conveyor 2 in, 2 one ends of conveyor are fixed at 12 downside of reaping apparatus, the 2 other end of conveyor stretches into in the goods fill 1, conveyor 2 carries the tobacco that reaping apparatus 12 reaped to the goods fill 1 in, the tail end at frame 8 is installed to goods fill 1, the collection and the unloading of the tobacco of adopting the inclined plane design to be convenient for are fought to 1 bottom of goods fill, power device 15 installs on 7 upside frames 8 of rear wheel, power device 15 drives rear wheel 7 and rotates the removal that realizes the harvester. The front end of the roof 3 is connected with the locomotive 4, the rear end of the roof 3 is connected with the conveying device 2, and the bottom of the roof 3 is fixed on the frame 8.

Further, the front wheel 5 may be fixed on the front wheel transmission shaft 14 through a roller bearing and mounted on the frame 8, the two rear wheels 7 may be fixed on the two rear wheel transmission shafts 29 through bolts and mounted on the frame 8, and the rear wheel transmission shafts 29 are provided with the chain wheel ii 26.

Further, can set up reaping apparatus 12 is including reaping part I, reaping part II, reaping part III, reaping part IV, hydraulic pressure elevating gear 6, reaping part I, reaping part II, reaping part III, it is the same to reap part IV structure, it links together with reaping part III to reap part II, it places with reaping part II relatively to reap part I, it places with reaping part III relatively to reap part IV, reap part I, reap part II, reap part III, it all is connected with hydraulic pressure elevating gear 6 and realizes elevating movement through the drive of hydraulic pressure elevating gear 6 to reap part IV. The harvesting device 12 is a part for realizing the tobacco leaf harvesting function of the tobacco leaf harvester, and meanwhile, the harvesting device 12 is connected with the hydraulic lifting device 6, so that the tobacco leaf harvester harvests tobacco leaves in batches in high and low according to the maturity of the tobacco leaves.

Furthermore, the harvesting part I can be arranged to comprise a bracket I21, a bracket II 27, a bracket III 11, a conveying roller 18, a direct current motor 19, a small chain 20, a chain wheel III 28, a harvesting knife 10, a rubber guide strip 17 and a motor fixing plate 13, wherein the bracket I21 comprises a transverse edge, a lower bottom edge, an upper bottom edge, a vertical edge I and a vertical edge II, one end of the transverse edge is connected with one end of the vertical edge I, the other end of the vertical edge I is connected with one end of the lower bottom edge in an inclined manner, the other end of the lower bottom edge is a free end, the other end of the transverse edge is connected with one end of the vertical edge II, the other end of the vertical edge II is connected with one end of the upper bottom edge, the other end of the upper bottom edge is provided with the harvesting knife 10, the bracket II 27 comprises a side edge and a bottom edge, the lower end of the side edge is connected, one end of the conveying roller 18, which is close to the support I21, is provided with a chain wheel III 28, the chain wheels III 28 are connected and driven through a small chain 20, a second chain wheel III 28, which is close to the vertical edge I of the support I21, is connected with a direct current motor 19, the direct current motor 19 is fixed on the lower bottom edge of the support I21 through a motor fixing plate 13, the free end of the bottom edge of the support II 27 is provided with a bent rubber guide strip 17, and the support I21 and the support II 27 are respectively fixed on two supports III 11. The rubber guide strip 17 is a curved rubber strip which can guide the tobacco rod into the harvesting device 12, and due to the change of the topography of the tobacco field and some errors in measurement, the distance between every two rows in the tobacco field has a certain fluctuation range, and the rubber guide sleeve 17 is needed for guiding.

Further, can set up it is connected through support III 11 with reaping part III to reap part II, reap part I, reap part II, reap part III, reap part IV and all be connected with hydraulic pressure elevating gear 6 through support III 11, be equipped with the guide rail on the support III 11, cooperate with the guide slot on the frame 8 and install reaping apparatus 12 on frame 8 to make reaping apparatus 12 can reciprocate along the guide rail direction.

Further, the harvesting knife 10 can be set to be composed of a steel wire cutting knife 22, a plug pin 23, knife rests 24, rollers 25 and a motor 46, the rollers 25 are fixed to four corners of the knife rests 24 through the plug pins 23, the steel wire cutting knife 22 is fixed to the four rollers 25 around a circle, the motor 46 is installed on one of the rollers 25, the motor 46 is used for driving the steel wire cutting knife 22 to rotate, and the knife rests 24 are installed on the support I21. The roller harvesting knife 10 is different from the roller harvesting knife of the conventional harvester, because the roller knife is large in size and high in rotating speed, tobacco leaves are easily damaged, and the wire cutting knife 22 is driven by the motor 46 to rotate and cut, so that damage to the tobacco leaves can be greatly reduced.

Further, can set up conveyor 2 includes conveying mechanism I, conveying mechanism II, conveying mechanism III, conveying mechanism I, conveying mechanism II, conveying mechanism III structure is the same and installs on frame 8 with the same horizontal spacing distance, I input of conveying mechanism is fixed and is reaped the downside position of III 11 of support of part I in conveyor 2, II inputs of conveying mechanism are fixed and are reaped the downside position of II and reap III 11 of support of part III in conveyor 2, III inputs of conveying mechanism are fixed and are reaped the downside position of III 11 of support of part IV in conveyor 2, I output of conveying mechanism, II outputs of conveying mechanism, III outputs of conveying mechanism all stretch into in the goods fill 1.

Further, the conveying mechanism I can be arranged to comprise a conveying channel 34, a belt 30, small rollers 35, a belt roller I31, a belt roller II 16, a belt bogie I32 and a belt bogie II 33, wherein the conveying channel 34 is a channel with a rectangular cross section and is divided into three parts, namely an input end, an inclined channel and an output end, the input end is arranged at the lower side position of the harvesting device 12, the rear end of the input end is connected with the bottom end of the inclined channel, the top end of the inclined channel is connected with the front end of the output end, the rear end of the output end extends into the cargo hopper 1, the belt roller I31 is arranged on the bottom surface of the front end of the input end, the belt bogie I32 is arranged on the bottom surface of the connection part of the rear end of the input end and the inclined channel, the belt bogie II 33 is arranged on the bottom surface of the connection part of the top end of the inclined channel and the front end of, conveying belt 30 is installed on belt roller I31, belt bogie I32, belt bogie II 33, belt roller II 16, evenly is equipped with the arch in a row on conveying belt 30.

Further, the power device 15 may include a power mechanism i and a power mechanism ii, which have the same structure and are oppositely mounted on the frame 8 to respectively provide power for the two rear wheels 7. Since the tobacco leaf harvester works in the tobacco field, a space for the tobacco to pass through must be reserved in the middle of the tobacco leaf harvester, the rear wheels 7 cannot be directly connected by a shaft, and the rear wheels 7 need to be driven respectively.

Further, the power mechanism I can be arranged to comprise a three-phase asynchronous speed reduction motor 9, a chain wheel I37, a double-row roller bearing 39, a large helical gear 40, a small helical gear 41, a transmission shaft 42, a shaft sleeve 43, a chain 38 and a chain cover 36, wherein the three-phase asynchronous speed reduction motor 9 is fixed on the frame 8, the small helical gear 41 is installed on a motor shaft, the transmission shaft 42 is installed on the frame 8 on one side of the three-phase asynchronous speed reduction motor 9 through the double-row roller bearing 39, the large helical gear 40 and the chain wheel I37 are respectively installed at two ends of the transmission shaft 42 through the shaft sleeve 43, the small helical gear 41 and the large helical gear 40 are in meshing transmission, the chain wheel I37 is in transmission connection with the chain wheel II 26 on the rear wheel transmission shaft 29 on one side through the chain 38, and the chain cover 36 covers the chain.

The working principle of the invention is as follows: because the heights of the tobacco growing positions on the tobacco rods are different and the quality of the tobacco is different, during operation, an operator can control the hydraulic lifting device 6 to perform telescopic motion through keys on the control panel 44 so as to drive the harvesting device 12 to form different ground heights, then the harvesting device 12 is used for harvesting the tobacco with different heights on the tobacco rods in a layered mode so as to ensure the quality of each layer of harvested tobacco, after the ground heights of the harvesting device 12 are adjusted, the tobacco harvesting machine is controlled to operate two rows of tobacco simultaneously, the tobacco rods are guided into the harvesting device 12 by the rubber guide strips 17, the tobacco leaves on the tobacco rods are cut by the cutting knives 10 in the harvesting devices 12 at two sides, the cut tobacco leaves are driven by the conveying roller 18 to enter the input end of the conveying device 2 at the lower side position of the harvesting device 12, and the conveying belt 30 in the conveying device 2 drives the tobacco to enter the output end through an inclined, and enters the bucket 1 at the output end. The tobacco leaf harvester is driven by a rear wheel, and the advancing power, the retreating power and the turning power of the tobacco leaf harvester are all provided by a three-phase asynchronous speed reducing motor 9 in a power device 15.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A tobacco leaf harvester is characterized in that: comprises a frame (8), front wheels (5), rear wheels (7), a cargo bucket (1), a harvesting device (12), a conveying device (2) and a power device (15);

front wheel (5) of frame (8) front end installation, rear wheel (7) are installed respectively to frame (8) rear end both sides, install reaping apparatus (12) on frame (8) between front wheel (5) and rear wheel (7), reaping apparatus (12) are reaped and are carried to conveyor (2) in, conveyor (2) one end is fixed at reaping apparatus (12) downside, conveyor (2) other end stretches into in goods fill (1), conveyor (2) carry the tobacco that reaping apparatus (12) were reaped to in goods fill (1), the tail end in frame (8) is installed in goods fill (1), the collection and the unloading of tobacco are convenient for to goods fill (1) bottom adoption inclined plane design, power device (15) are installed on rear wheel (7) upside frame (8), power device (15) drive rear wheel (7) rotate the removal that realizes the harvester.

2. The tobacco leaf harvester of claim 1, wherein: the front wheel (5) is fixed on the front wheel transmission shaft (14) through a roller bearing and is arranged on the frame (8), the two rear wheels (7) are respectively fixed on the two rear wheel transmission shafts (29) through bolts and are arranged on the frame (8), and the rear wheel transmission shafts (29) are provided with chain wheels II (26).

3. The tobacco leaf harvester of claim 1, wherein: reaping apparatus (12) are including reaping part I, reap part II, reap part III, reap part IV, hydraulic pressure elevating gear (6), reap part I, reap part II, reap part III, it is the same to reap part IV structure, it links together with reaping part III to reap part II, it places relatively with reaping part II to reap part I, it places relatively with reaping part III to reap part IV, reap part I, reap part II, reap part III, it all is connected and realizes elevating movement through hydraulic pressure elevating gear (6) drive to reap part IV.

4. The tobacco leaf harvester of claim 3, wherein: the harvesting part I comprises a support I (21), a support II (27), a support III (11), a conveying roller (18), a direct current motor (19), a small chain (20), a chain wheel III (28), a harvesting cutter (10), a rubber guide strip (17) and a motor fixing plate (13), wherein the support I (21) comprises a transverse edge, a lower bottom edge, an upper bottom edge, a vertical edge I and a vertical edge II, one end of the transverse edge is connected with one end of the vertical edge I, the other end of the vertical edge I is connected with one end of the lower bottom edge in an angle inclined manner, the other end of the lower bottom edge is a free end, the other end of the transverse edge is connected with one end of the vertical edge II, the other end of the vertical edge is connected with one end of the upper bottom edge, the harvesting cutter (10) is installed at the other end of the upper bottom edge, the support II (27) comprises a side edge and a bottom edge, the lower end of the side edge is connected with one, conveying cylinder (18) are close to support I (21) one end and are installed sprocket III (28), connect the transmission through little chain (20) between sprocket III (28), it is connected with DC motor (19) to be close to second sprocket III (28) that support I (21) erect limit I, DC motor (19) are fixed on support I (21) lower bottom edge through motor fixed plate (13), curved rubber gib block (17) are installed to support II (27) base free end, support I (21) are fixed respectively on two supports III (11) with support II (27).

5. The tobacco leaf harvester of claim 3, wherein: reap part II and reap part III and be connected through support III (11), reap part I, reap part II, reap part III, reap part IV and all be connected with hydraulic pressure elevating gear (6) through support III (11), be equipped with the guide rail on support III (11), cooperate with the guide slot on frame (8) and install reaping apparatus (12) on frame (8) to make reaping apparatus (12) can reciprocate along the guide rail direction.

6. The tobacco leaf harvester of claim 4, wherein: the cutting knife (10) is composed of a steel wire cutting knife (22), a plug pin (23), a knife rest (24), rollers (25) and a motor (46), the rollers (25) are fixed on four corners of the knife rest (24) through the plug pin (23), the steel wire cutting knife (22) is fixed on the four rollers (25) around a circle, the motor (46) is installed on one roller (25), the motor (46) is used for driving the steel wire cutting knife (22) to rotate, and the knife rest (24) is installed on a support I (21).

7. The tobacco leaf harvester of claim 1, wherein: conveyor (2) are including conveying mechanism I, conveying mechanism II, conveying mechanism III, conveying mechanism I, conveying mechanism II, III structures of conveying mechanism are the same and install on frame (8) with the same horizontal spacing distance, the downside position of the support III (11) of part I is reaped in conveying device (2) is fixed to I input of conveying mechanism, II inputs of conveying mechanism are fixed and are reaped the downside position of part II and reaping III (11) of part III in conveying device (2), III inputs of conveying mechanism are fixed and are reaped the downside position of the support III (11) of part IV in conveying device (2), I output of conveying mechanism, II outputs of conveying mechanism, III outputs of conveying mechanism all stretch into in goods fill (1).

8. The tobacco leaf harvester of claim 7, wherein: conveying mechanism I includes transfer passage (34), conveyor belt (30), little gyro wheel (35), belt gyro wheel I (31), belt gyro wheel II (16), belt bogie I (32), belt bogie II (33), transfer passage (34) are rectangular cross section's passageway, divide into the input, oblique passageway and output triplex, the input is installed in reaping apparatus (12) downside position, the input rear end is connected with oblique passageway bottom, oblique passageway top is connected with the output front end, the output rear end stretches into in goods fill (1), input front end bottom surface installation belt gyro wheel I (31), input rear end and oblique passageway bottom junction bottom surface installation belt bogie I (32), oblique passageway top and output front end junction bottom surface installation belt bogie II (33), output rear end installation belt gyro wheel II (16), belt bogie I (32), Four small rollers (35) are mounted on the belt bogie II (33), the conveying belt (30) is mounted on the belt roller I (31), the belt bogie I (32), the belt bogie II (33) and the belt roller II (16), and rows of protrusions are uniformly arranged on the conveying belt (30).

9. The tobacco leaf harvester of claim 1, wherein: the power device (15) comprises a power mechanism I and a power mechanism II, wherein the power mechanism I and the power mechanism II are identical in structure and are oppositely arranged on the frame (8) to respectively provide power for the two rear wheels (7).

10. The tobacco leaf harvester of claim 9, wherein: the power mechanism I comprises a three-phase asynchronous speed reducing motor (9), a chain wheel I (37), a double-row roller bearing (39), a large helical gear (40), a small helical gear (41), a transmission shaft (42), a shaft sleeve (43), a chain (38) and a chain cover (36), wherein the three-phase asynchronous speed reducing motor (9) is fixed on a frame (8), the small helical gear (41) is installed on a motor shaft, the transmission shaft (42) is installed on the frame (8) on one side of the three-phase asynchronous speed reducing motor (9) through the double-row roller bearing (39), the large helical gear (40) and the chain wheel I (37) are respectively installed at two ends of the transmission shaft (42) through the shaft sleeve (43), the small helical gear (41) and the large helical gear (40) are in meshing transmission, the chain wheel I (37) is in transmission connection with the chain wheel II (26) on the rear wheel transmission shaft (29) on one side through the chain, the chain cover (36) covers the chain (38) and is fixed on the frame (8).