Integrated harvester for zizania aquatica

By designing an integrated water chestnut harvester, which uses components such as a tracked chassis, spiral blades, and cutting blades, the mechanized harvesting of water chestnuts is achieved, solving the problems of slow speed and low efficiency of traditional manual harvesting, and improving harvesting efficiency and farmers' health.

CN223745304UActive Publication Date: 2026-01-02CHANGCHUN INST OF ELECTRONIC TECH
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Patent Information

Application Number
CN202520187311.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-02
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Traditional harvesting of water bamboo relies on manual labor, resulting in slow harvesting speed and low efficiency, making it difficult to meet the needs of large-scale production and increasing the physical burden on workers.

Method used

Design a water chestnut harvester that integrates the harvesting of water chestnuts and other crops. The harvester uses a tracked chassis, spiral blades, cutting blades, a coaxial reversing cleaning mechanism, and a collection box to achieve mechanized harvesting. The spiral blades transport the water chestnuts, the cutting blades cut the water chestnuts at an angle, and the coaxial reversing cleaning mechanism cleans the impurities on the surface of the water chestnuts and collects them.

Benefits of technology

It significantly increases harvesting speed, reduces harvesting time, improves efficiency, alleviates labor burden, protects farmers' health, reduces damage to water chestnuts, and enhances yield and market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an integrated zizania aquatica harvester, and relates to the field of zizania aquatica harvesting. The zizania aquatica integrated harvester comprises a harvester body, a spiral blade used for conveying zizania aquatica and a front end insertion structure used for providing positioning and guiding effects for harvesting action are installed at the position of a supporting base of the harvester body, and a cutting blade used for harvesting zizania aquatica is rotatably installed at the bottom of the front end insertion structure through a rotating shaft; according to the integrated zizania aquatica harvester, a mechanical harvesting mode is adopted, zizania aquatica can be automatically guided and beveled, orderly conveying is guaranteed, intermittent conveying can be conducted, it is guaranteed that the conveying process is not stopped, the conveying speed is high, zizania aquatica leaves are cut off through fan blades on the two sides, and stems are left; besides, foreign matter on the surfaces of the zizania aquatica can be cleaned, the harvesting speed can be greatly increased on the whole, the time needed for harvesting is shortened, the harvesting efficiency is improved, and the physical labor burden of farmers is relieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water bamboo harvesting, in particular to a water bamboo integrated harvester. BACKGROUND

[0002] Water bamboo is a kind of aquatic vegetable, is a perennial root grass of gramineae genus zizania, the whole plant generally can grow to 1-2 meters or so, the stem of water bamboo has the division of overground stem and underground stem, overground stem is short, and part is buried in soil, and many tillers will be produced on the surface, leaf blade is flat and wide, long lanceolate, length is generally 1-1.6 meters or so, width is 3-4 centimeters or so, water bamboo is a large cone inflorescence, and the large cone inflorescence is 30-60 centimeters long, and the branch is mostly clustered and ascends, and the fruit period develops, water bamboo is rich in nutrition and has medicinal value, and water bamboo can be harvested after 90-120 days of planting, and the commonly used harvesting tool is a sickle.

[0003] The traditional harvesting mode of water bamboo mainly relies on manual operation, and the process of using a sickle to cut water bamboo from the base one by one is relatively slow, so that the overall harvesting speed is limited, and under normal circumstances, manual harvesting is difficult to complete the harvesting work of a large area of water bamboo in a short time, resulting in a long harvesting time, which further causes low harvesting efficiency, and cannot meet the demand of large-scale production and rapid harvesting and marketing, and when manually harvesting water bamboo, the operator needs to be in a bending posture for a long time, increasing the labor burden. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a water bamboo integrated harvester, which can greatly improve the harvesting speed, reduce the time required for harvesting, improve the harvesting efficiency and reduce the physical labor burden of farmers.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a water bamboo integrated harvester, comprising a harvester main body, a spiral blade for conveying water bamboo and a front end insertion structure for providing positioning and guiding effect for harvesting action are installed at the support seat of the harvester main body, and a cutting blade for harvesting water bamboo is rotatably installed at the bottom of the front end insertion structure through a rotating shaft.

[0006] The end of the harvester body is provided with a coaxial reverse cleaning mechanism for cleaning the water bamboo and a collecting box for collecting the water bamboo, the carrier frame of the harvester body is provided with a bar conveying mechanism for intermittently conveying the water bamboo to the coaxial reverse cleaning mechanism, the end of the support seat is provided with a channel for guiding the water bamboo to the bar conveying mechanism and for changing the water bamboo from a vertical state to a horizontal state, and the two sides of the harvester body are rotatably provided with fan leaves for cutting off the leaves of the water bamboo.

[0007] Preferably, the upper part of the two sides of the support seat is fixedly provided with a guide, which is a triangular structure, the two guides are symmetrically arranged, and the guides are used for guiding the water bamboo to the spiral blade.

[0008] Preferably, the bar conveying mechanism comprises a motor A, two meshing rotating gears, a plurality of cranks, two pulleys and a single rack, the motor A is fixed in the harvester body, the output end of the motor A is fixedly connected with one of the rotating gears, the other rotating gear is rotatably connected with the fixing member of the harvester body through the shaft in the rotating gear, one of the pulleys is fixed with the rotating gear close to the motor A, the other pulley is rotatably connected with the chassis frame of the harvester body through the shaft in the pulley, the two pulleys are drivingly connected through a synchronous belt, the fixed ends of the plurality of cranks are respectively fixed with the shaft in one of the pulleys and the shaft in the rotating gear, and the rotating end of the crank is rotatably connected with the single rack.

[0009] Preferably, the coaxial reverse cleaning mechanism comprises a first gear, a second gear, a third gear, a fourth gear, two fifth gears, two combination gears, a reverse shaft and two brushes, the first gear, the fourth gear and one of the pulleys are coaxial, the second gear is rotatably connected with the chassis frame of the harvester body through a rotating shaft, the first gear is meshingly connected with the second gear, the second gear is meshingly connected with the third gear, the fourth gear is meshingly connected with one of the combination gears, each combination gear is rotatably connected with the reverse shaft, the third gear is fixedly connected with the reverse shaft, the two brushes are fixedly connected with the two ends of the reverse shaft, the two fifth gears are coaxial and rotatably installed at the chassis frame of the harvester body, and the two fifth gears are meshingly connected with the two combination gears.

[0010] Preferably, one side of the support seat is fixedly provided with a motor B, the output end of the motor B is fixedly provided with a driving sprocket, a plurality of driven sprockets, two synchronous wheels, meshingly arranged bevel gears A and B are rotatably installed at the support seat, the driving sprocket and the plurality of driven sprockets are drivingly connected through chains, one of the synchronous wheels is coaxial with one of the driven sprockets, the other synchronous wheel is fixedly connected with the rotating shaft of the cutting blade, the remaining driven sprockets are coaxial with the bevel gears A close to the driven sprockets, the two synchronous wheels are drivingly connected through a belt, and the bevel gear B is fixedly connected with the inner shaft of the spiral blade close to the bevel gear B.

[0011] Preferably, the cutting blade and the planting surface of the water bamboo form an angle.

[0012] Preferably, the end of the front end insertion structure is triangular, and the tip and side of the triangular shape are adapted to the space between the two rows of water bamboo.

[0013] Preferably, the combined gear includes a gear C, two gears D and a plurality of feeding plates arranged in a circle, the gear C is engaged with the fourth gear and fixed with one of the gears D, the two gears D are fixed with the plurality of feeding plates, and the outermost circle radius of the gear D is greater than that of the gear C.

[0014] Compared with the prior art, the utility model has the advantages that: the mechanical harvesting mode is adopted, the water bamboo is obliquely cut by the cutting blade, the support seat and the front end insertion structure play a guiding role on the water bamboo, the spiral blade can keep the water bamboo in a vertical state while advancing, so that the water bamboo is orderly conveyed in an interval, the problem of water bamboo accumulation after cutting under general conditions is avoided, the order of conveying is ensured, subsequent processing is facilitated, the water bamboo can be intermittently conveyed, the conveying process is not stopped, the conveying speed is fast, the leaves of the water bamboo are cut off by the two side fans and the stem part is left, foreign matters on the surface of the water bamboo can be cleaned, the overall harvesting speed is greatly improved, the time required for harvesting is reduced, the harvesting efficiency is improved, and the physical labor burden of farmers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a support seat, spiral blade and front end insertion structure structure schematic view of the utility model;

[0017] Figure 3 It is a cutting blade bottom view of the utility model;

[0018] Figure 4 It is a bar conveying mechanism top view of the utility model;

[0019] Figure 5 It is a support seat, spiral blade and front end insertion structure structure schematic view of the utility model; Figure 4 It is a structure enlarged schematic view of A in the utility model;

[0020] Figure 6 It is a coaxial reverse cleaning mechanism and collection box structure schematic view of the utility model;

[0021] Figure 7 It is a support seat bottom view of the utility model.

[0022] Wherein: 1, harvester main body; 101, tracked chassis; 102, support seat; 103, bearing frame; 104, fixed part; 105, chassis frame; 2, spiral blade; 3, front end insertion structure; 4, cutting blade; 5, coaxial reverse cleaning mechanism; 501, first gear; 502, second gear; 503, third gear; 504, fourth gear; 505, fifth gear; 506, combination gear; 507, reverse shaft; 508, brush; 511, gear C; 512, gear D; 513, feeding plate; 6, collection box; 7, bar material conveying mechanism; 701, motor A; 702, rotating gear; 703, single rack; 704, belt pulley; 8, passage; 9, fan blade; 10, motor B; 11, driving sprocket; 12, driven sprocket; 13, synchronous wheel; 14, bevel gear A; 15, bevel gear B; 16, guide. DETAILED DESCRIPTION

[0023] As Figures 1-7As shown, a kind of integrated harvesting machine for water bamboo, including harvesting machine main body 1, harvesting machine main body 1 with track chassis 101 as mobile device, track chassis 101 has the ability to travel stably in muddy water bamboo field, and compared with wheeled chassis, it has better mobility, stronger driving force and passability, the position in water bamboo field is moved by track chassis 101 to carry out harvesting and cleaning operation, the support seat 102 of harvesting machine main body 1 is installed with spiral blade 2 for conveying water bamboo and front end insertion structure 3 for providing positioning and guiding effect for harvesting action, the number of spiral blade 2 is two, two spiral blades 2 are located on the two sides of front end insertion structure 3, front end insertion structure 3 is arranged at the front end of harvesting machine main body 1, its shape and size are adapted to the space between two rows of water bamboo, and can be inserted between two rows of water bamboo during harvesting operation, for providing positioning and guiding effect for subsequent harvesting action, and the surface of front end insertion structure 3 is smoothly treated or provided with protective layer to avoid damage to water bamboo plants during insertion, the upper part of both sides of support seat 102 is fixedly installed with guide 16, guide 16 is triangular structure, two guides 16 are symmetrically arranged, and used for guiding water bamboo to spiral blade 2, one side of support seat 102 is fixedly installed with motor B10, the output end of motor B10 is fixedly installed with driving sprocket 11, a plurality of driven sprockets 12, two synchronous wheels 13, meshing bevel gear A14 and bevel gear B15 are rotatably installed at support seat 102, one of the synchronous wheels 13 is coaxial with one of the driven sprockets 12, the other synchronous wheel 13 is fixed with the rotating shaft at cutting blade 4, the remaining driven sprockets 12 are coaxial with the bevel gear A14 close to them, the two synchronous wheels 13 are connected by belt transmission, the bevel gear B15 is fixed with the inner shaft of spiral blade 2 close to it, by starting motor B10, spiral blade 2 and cutting blade 4 can work cooperatively, improve work efficiency, the belt and synchronous wheel 13 coaxial with cutting blade 4 are located inside front end insertion structure 3, cutting blade 4 for harvesting water bamboo is rotatably installed at the bottom of front end insertion structure 3 through rotating shaft, there is an angle between cutting blade 4 and the planting ground of water bamboo, the oblique cutting mode is adopted, the distance of cutting blade 4 moving along the base of water bamboo is increased, the instantaneous resistance during cutting is reduced, the end of front end insertion structure 3 is triangular, the tip and side surface shape of its triangular shape are adapted to the space between two rows of water bamboo, for smoothly entering and separating water bamboo rows when harvesting operation starts.

[0024] The end of the harvester body 1 is provided with a coaxial reverse cleaning mechanism 5 for cleaning the water bamboo and a collection box 6 for collecting the water bamboo, the coaxial reverse cleaning mechanism 5 comprising a first gear 501, a second gear 502, a third gear 503, a fourth gear 504, two fifth gears 505, two combination gears 506, a reverse shaft 507 and two brushes 508, the first gear 501, the fourth gear 504 and one of the belt pulleys 704 are coaxial, the second gear 502 is rotatably connected to the chassis frame 105 of the harvester body through a rotating shaft, the first gear 501 is in meshing connection with the second gear 502, the second gear 502 is in meshing connection with the third gear 503, the fourth gear 504 is in meshing connection with one of the combination gears 506, each combination gear 506 is rotatably connected to the reverse shaft 507, the third gear 503 is fixedly connected to the reverse shaft 507, the two brushes 508 are fixedly connected to the two ends of the reverse shaft 507 respectively, the two fifth gears 505 are coaxial and rotatably installed at the chassis frame 105 of the harvester body, the two fifth gears 505 are in meshing connection with the two combination gears 506 respectively, when the belt pulley 704 rotates, the two combination gears 506 convey the water bamboo into the collection box 6, and the impurities on the surface of the water bamboo are cleaned by the brushes 508, and the brushes 508 and the combination gears 506 at the reverse shaft 507 rotate in two opposite directions in a coaxial reverse manner, a kind of interlaced motion mode is generated, the impurities are stripped more effectively, the cleaning effect is enhanced, the impurities are prevented from accumulating in the direction of the collection box 6, the combination gear 506 comprises a gear C 511, two gears D 512 and a plurality of feeding plates 513 arranged in a circle, the gear C 511 is in meshing connection with the fourth gear 504 and is fixed with one of the gears D 512, the two gears D 512 are fixed with the plurality of feeding plates 513, the outermost circle radius of the gear D 512 is greater than that of the gear C 511, and the two gears D 512 are used for limiting the water bamboo to prevent the water bamboo from falling off from the two sides of the feeding plate 513, so that the water bamboo can fall accurately into the collection box 6.

[0025] The rod material conveying mechanism 7 for intermittently conveying the water bamboo to the coaxial reverse cleaning mechanism 5 is installed at the carrier 103 of the harvester main body 1, the carrier 103 is double rack structure, used for supporting the diameter of the water bamboo and increasing the friction between the water bamboo, when the water bamboo falls to the carrier 103, to improve the stability of the water bamboo, the number of the carrier 103 is two, the rod material conveying mechanism 7 includes a motor A701, two meshing rotating gears 702, a plurality of cranks, two pulleys 704 and a single rack 703, the motor A701 is fixed in the harvester main body 1, the output end of the motor A701 is fixedly connected with one of the rotating gears 702, the other rotating gear 702 is rotatably connected with the fixed part 104 of the harvester main body 1 through the shaft in the rotating gear 702, one of the pulleys 704 is fixed with the rotating gear 702 close to the motor A701, the other pulley 704 is rotatably connected with the chassis frame 105 of the harvester main body 1 through the shaft in the pulley 704, the two pulleys 704 are drivingly connected through the synchronous belt, the synchronous belt is a kind of toothed transmission belt, the teeth of the pulley 704 are meshed with the teeth of the synchronous belt, to ensure the accurate transmission ratio, the fixed ends of the plurality of cranks are respectively fixed with the shaft in one of the pulleys 704 and the shaft in the rotating gear 702, the rotating end of the crank is rotatably connected with the single rack 703, when the motor A701 is started, the plurality of cranks can be rotated, and then the rotation of the single rack 703 is controlled through the rotation of the crank, so that the water bamboo is conveyed through the rotation of the single rack 703.

[0026] The end of the support seat 102 is provided with a channel 8 for guiding the water bamboo to the rod material conveying mechanism 7, and for changing the water bamboo from vertical state to horizontal state, the fan blade 9 for cutting the leaves of the water bamboo is rotatably installed on both sides of the harvester main body 1.

[0027] In use, the harvester body 1 uses the track chassis 101 as a moving device, which has the ability to stably travel in muddy water bamboo fields, and has better mobility, stronger driving force and passability than wheeled chassis. The movement of the track chassis 101 realizes the movement of the position in the water bamboo field in order to carry out the subsequent harvesting and cleaning operation. When harvesting, the end of the front end insertion structure 3 is provided in a triangular shape, and the tip and side shape of the triangular shape are adapted to the space between the two rows of water bamboo, which is used to smoothly enter and separate the water bamboo row when the harvesting operation starts. Moreover, the guide 16 installed at the support seat 102 is a triangular structure, and two guides 16 are symmetrically arranged. When the harvester body moves, the guide 16 can guide the water bamboo to the spiral blade 2. At this time, the cutting blade 4 at the bottom of the front end insertion structure 3 should be in contact with the two rows of water bamboo; the motor B10 drives the driving sprocket 11 to rotate, and the driving sprocket 11 drives a plurality of driven sprockets 12 through the chain, one of which drives one of the synchronous wheels 13 to rotate. Since the two synchronous wheels 13 are connected by a belt transmission, when one of the synchronous wheels 13 rotates, the other synchronous wheel 13 also rotates. Since the other synchronous wheel 13 is fixed with the rotating shaft at the cutting blade 4, the cutting blade 4 can rotate. Since there is an included angle between the cutting blade 4 and the planting surface of the water bamboo, an oblique cutting method is adopted to increase the distance of the cutting blade 4 along the base of the water bamboo when cutting, which reduces the instantaneous resistance during cutting and facilitates smooth cutting. When the remaining two driven sprockets 12 rotate, the two bevel gears A14 rotate, and the two bevel gears B15 rotate, and the two spiral blades 2 rotate. The spiral blade 2 can ensure that the water bamboo remains vertical while advancing to facilitate transportation, and also achieves orderly transportation of one water bamboo occupying one interval, avoiding the problem of water bamboo accumulation after cutting under general conditions, ensuring orderly transportation and facilitating subsequent processing. It should be noted that when the spiral blade 2 transports the water bamboo, the water bamboo is located between the spiral blade 2 and the front end insertion structure 3, and the surface of the front end insertion structure 3 is smooth or provided with a protective layer to avoid damage to the water bamboo plant during insertion.

[0028] Subsequently, the two spiral blades 2 transport the water bamboo to the channel 8, and when the water bamboo moves into the channel 8, the water bamboo is transported by the cutting in the previous step into the inclined channel 8 and is transported to the bar conveying mechanism 7, and when the water bamboo collides with the bar conveying mechanism 7, the water bamboo falls onto the single rack 703, so that the water bamboo changes from a vertical state to a horizontal state, and in the process of changing from a vertical state to a horizontal state, the blade part falls onto the fan blade 9, and the fan blade 9 can be driven to rotate by a motor, and the water bamboo leaves are cut off by the fan blade 9 and the valuable stems are retained, and then the rotating gear 702 is driven to rotate by the motor A 701, and since the two rotating gears 702 are engaged, the two rotating gears 702 can rotate simultaneously, one of the rotating gears 702 drives two cranks to rotate through the shaft inside it, and the other rotating gear 702 drives the shaft inside one of the belt pulleys 704 to rotate through the transmission connection of the synchronous belt, and then drives the other two cranks to rotate, and the rotating ends of the two groups of cranks work together to enable the two single racks 703 to transport the stems of the water bamboo to the cleaning mechanism during rotation, and the water bamboo falls onto the carrier 103 every time the single rack 703 rotates one circle, the carrier 103 is a double rack structure, used to support the diameter of the water bamboo and increase the friction between the water bamboo, and when the water bamboo falls onto the carrier 103, the stability of the water bamboo is improved, and as the single rack 703 continuously rotates, the water bamboo at the bar conveying mechanism 7 can be intermittently transported, ensuring that the conveying process does not stop and the conveying speed is fast, and the conveyed water bamboo falls onto the feeding plate 513 of the cleaning mechanism, and since one of the belt pulleys 704 drives the shaft inside it to rotate, and the belt pulley 704 is coaxial with the first gear 501 and the fourth gear 504, the first gear 501 and the fourth gear 504 also rotate, and when the fourth gear 504 rotates, it drives one of the combination gears 506 to rotate, and then drives the two fifth gears 505 to rotate, one of the fifth gears 505 drives the other combination gear 506 to rotate, so the two combination gears 506 rotate synchronously, and the two groups of feeding plates 513 of the combination gear 506 transport the water bamboo into the collection box 6, and at the same time, the first gear 501 also drives the second gear 502 to rotate when it rotates, the second gear 502 drives the third gear 503 to rotate, the third gear 503 drives the counter shaft 507 to rotate, and the counter shaft 507 drives the brushes 508 at both ends to rotate, at this time, the brushes 508 rotate in the opposite direction of the feeding plate 513, the feeding plate 513 is used to transport the water bamboo into the collection box 6, and the brushes 508 are used to clean the foreign matter on the surface of the water bamboo, including weeds and soil, it should be noted that the bar conveying mechanism can be transported at a fixed frequency, and the coaxial counter cleaning mechanism 5 at the rear maintains the same frequency, which maximizes the production efficiency.

[0029] Finally, in summary, compared with traditional manual harvesting, mechanized harvesting can greatly improve the harvesting speed, reduce the time required for harvesting, improve the harvesting efficiency, and replace traditional manual harvesting with mechanized operation, reduce the physical labor burden of farmers, avoid fatigue and strain caused by long-time bending operation, which helps to protect the health of farmers, improve work efficiency, improve the health level and work satisfaction of laborers, more accurately control the harvesting depth and intensity, reduce the damage to the water bamboo, maintain its appearance and quality, reduce the missed harvesting and damage caused by manual harvesting, improve the overall yield, improve market competitiveness, finally promote the production of water bamboo towards mechanization and automation, improve the modernization level of the entire industry, and contribute to the process of agricultural modernization.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A machine for harvesting water bamboo, characterized in that: The harvesting machine comprises a harvesting machine body (1), a spiral blade (2) for conveying water bamboo is installed at a support base (102) of the harvesting machine body (1), and a front end insertion structure (3) for providing positioning and guiding for the harvesting action is installed at the support base (102); a cutting blade (4) for harvesting water bamboo is rotatably installed at the bottom of the front end insertion structure (3) through a rotating shaft; A coaxial reverse cleaning mechanism (5) for cleaning water bamboo and a collecting box (6) for collecting water bamboo are installed at the end of the harvesting machine body (1); a bar conveying mechanism (7) for intermittently conveying water bamboo to the coaxial reverse cleaning mechanism (5) is installed at a bearing frame (103) of the harvesting machine body (1); a channel (8) for guiding water bamboo to be arranged at the bar conveying mechanism (7) and for changing the water bamboo from a vertical state to a horizontal state is arranged at the end of the support base (102); and fan leaves (9) for cutting off leaves of water bamboo are rotatably installed at both sides of the harvesting machine body (1).

2. The machine according to claim 1, characterized in that: The support base (102) is fixedly provided with a guide (16) at the upper part of each side; the guide (16) is triangular in structure, and two guides (16) are symmetrically arranged and used for guiding water bamboo to the spiral blade (2).

3. The machine according to claim 1, characterized in that: The bar conveying mechanism (7) comprises a motor A (701), two meshing rotating gears (702), a plurality of cranks, two belt pulleys (704) and a single rack (703); the motor A (701) is fixed in the harvesting machine body (1); an output end of the motor A (701) is fixedly connected with one of the rotating gears (702); the other rotating gear (702) is rotatably connected with a fixing member (104) of the harvesting machine body (1) through an inner shaft; one of the belt pulleys (704) is fixed with the rotating gear (702) close to the motor A (701); the other belt pulley (704) is rotatably connected with a bottom chassis (105) of the harvesting machine body (1) through an inner shaft; the two belt pulleys (704) are drivingly connected through a synchronous belt; the fixed ends of the plurality of cranks are fixed with the shaft in one of the belt pulleys (704) and the inner shaft of the rotating gear (702); and the rotating ends of the cranks are rotatably connected with the single rack (703).

4. The machine according to claim 3, characterized in that: The coaxial reverse cleaning mechanism (5) comprises a first gear (501), a second gear (502), a third gear (503), a fourth gear (504), two fifth gears (505), two combination gears (506), a reverse shaft (507) and two brushes (508), the first gear (501), the fourth gear (504) and one of the belt pulleys (704) are coaxial, the second gear (502) is rotatably connected with the chassis frame (105) of the harvester body through a rotating shaft, the first gear (501) is in meshing connection with the second gear (502), the second gear (502) is in meshing connection with the third gear (503), the fourth gear (504) is in meshing connection with one of the combination gears (506), each combination gear (506) is rotatably connected with the reverse shaft (507), the third gear (503) is fixedly connected with the reverse shaft (507), the two brushes (508) are fixedly connected with the two ends of the reverse shaft (507), the two fifth gears (505) are coaxial and rotatably installed at the chassis frame (105) of the harvester body, and the two fifth gears (505) are in meshing connection with the two combination gears (506) respectively.

5. The machine according to claim 1, characterized in that: The side of the supporting seat (102) is fixedly installed with a motor B (10), the output end of the motor B (10) is fixedly installed with a driving sprocket (11), a plurality of driven sprockets (12), two synchronous wheels (13), meshing bevel gears A (14) and bevel gears B (15) are rotatably installed at the supporting seat (102), the driving sprocket (11) and the plurality of driven sprockets (12) are drivingly connected through chains, one of the synchronous wheels (13) is coaxial with one of the driven sprockets (12), the other synchronous wheel (13) is fixedly connected with the rotating shaft at the cutting blade (4), the remaining driven sprockets (12) are coaxial with the bevel gears A (14) close thereto, the two synchronous wheels (13) are drivingly connected through a belt, and the bevel gears B (15) are fixedly connected with the inner shafts of the spiral blades (2) close thereto.

6. The machine according to claim 1, characterized in that: The cutting blade (4) and the planting ground of the water bamboo form an included angle.

7. The machine according to claim 1, characterized in that: The end of the front end insertion structure (3) is triangular, and the tip and side surface shape of the triangular shape are adapted to the space between the two rows of water bamboo.

8. The machine according to claim 4, characterized in that: The combination gear (506) comprises a gear C (511), two gears D (512) and a plurality of feeding plates (513) arranged in a circle, the gear C (511) is in meshing connection with the fourth gear (504) and fixedly connected with one of the gears D (512), the two gears D (512) are fixedly connected with the plurality of feeding plates (513), and the outermost circle radius of the gear D (512) is greater than that of the gear C (511).