Upper tobacco stalk harvester

Abstract

The utility model discloses a top tobacco leaf with stem harvesting machine relates to tobacco planting technical field, wherein, top tobacco leaf with stem harvesting machine includes base, walking mechanism, tailoring mechanism, clamping mechanism drive mechanism and remote control device, walking mechanism is established in the lower both sides of base, tailoring mechanism is established on the base to tailor tobacco stem, clamping mechanism is established above the tailoring mechanism can clamp tobacco stem and guide the top tobacco leaf of being tailored along the front -back convey, drive mechanism is established in the base to drive clamping mechanism along the front -back convey top tobacco leaf of being tailored, remote control device with walking mechanism, tailoring mechanism remote control connection, like this, realize the batch automation collection of tobacco, reduced the labor intensity of farmer, and selectively collected the required top tobacco leaf, realized accurate harvesting.

Description

Technical Field

[0001] This utility model relates to the field of tobacco planting, and in particular to a harvester for upper tobacco leaves with stems. Background Technology

[0002] A tobacco plant consists of leaves, stems, and roots. The upper leaves are the main component for making shredded tobacco. The stems, which transport water and nutrients and support the leaves, are generally not used for tobacco production. The roots at the bottom are retained for the tobacco to grow the following year. Therefore, when harvesting tobacco, only the upper leaves are harvested, the middle stems are cut off, and the roots are kept.

[0003] In existing technologies, tobacco leaves are usually harvested manually with sickles, which is inefficient and labor-intensive. Utility Model Content

[0004] The main purpose of this invention is to propose a harvesting machine for upper tobacco leaves with stems, which aims to improve cutting accuracy and reduce labor intensity.

[0005] To achieve the above objectives, the tobacco leaf harvester with stems proposed in this utility model includes: Base; The walking mechanism is located on both sides of the lower part of the base; A cutting mechanism, located on the base, is used to cut the tobacco stems; A clamping mechanism, located above the cutting mechanism, is capable of clamping the tobacco stem and guiding the upper tobacco leaves being cut to be conveyed in a front-to-back direction. A drive mechanism, located on the base, is used to drive the clamping mechanism to convey the cut upper tobacco leaves in a back-to-back direction; and, The remote control device is remotely connected to the walking mechanism and the cutting mechanism. In one embodiment, the cutting mechanism includes: A fixing plate is fixed to the side of the base and located below the clamping mechanism; A movable plate is movably mounted to the upper surface of the fixed plate in a left-right direction; and, At least one cutting blade, the cutting blade comprising two cooperating blades with their cutting edges facing each other, the two blades being fixed to the fixed plate and the movable plate respectively, so as to cooperate with each other to cut the tobacco leaf when the movable plate moves.

[0006] In one embodiment, the cutting blades are provided in a plurality of positions, arranged at intervals in a left-right direction; and / or, The cutting mechanism is provided in two parts, which are arranged at intervals in the vertical direction.

[0007] In one embodiment, the upper tobacco leaf harvester with stems further includes: The first slide rail is provided on the base in the vertical direction; The cutting mechanism has two parts, which are arranged vertically on the first slide rail to move vertically.

[0008] In one embodiment, the upper tobacco leaf harvester with stems further includes: A visual inspection mechanism is disposed on the base, the visual inspection mechanism includes a visual camera, and the visual camera is disposed facing the cutting mechanism.

[0009] In one embodiment, the walking mechanism includes: Two tracks are arranged in a ring and are respectively located on both sides of the base; Two tracked wheels are respectively disposed between the two tracks to drive the tracks to rotate; A rotary drive component is connected to each of the tracked wheels to drive the tracked wheels to rotate synchronously.

[0010] In one embodiment, the walking mechanism further includes a steering control device; The steering control device includes a base mounted on a base, a steering wheel rotatably mounted on the base, and an electronic steering sensor connected to the shaft of the steering wheel. The electronic steering sensor is connected to a controller that adjusts the rotational speed of the rotary drive component. An automatic return device for driving the steering wheel to automatically return to its original position is installed between the steering wheel and the base.

[0011] In one embodiment, each of the tracks is made of a flexible material.

[0012] In one embodiment, the upper tobacco leaf harvester with stem also includes a collection mechanism located behind the clamping mechanism. The collection mechanism includes a horizontally arranged base plate and side plates respectively vertically arranged on both sides of the base plate, for collecting the upper tobacco leaves guided and conveyed by the clamping mechanism.

[0013] The technical solution of this utility model includes a base, a walking mechanism, a cutting mechanism, a clamping mechanism, and a driving mechanism. The walking mechanism drives the base to move, and the cutting mechanism, located on the base, cuts the tobacco stems during movement. The clamping device, located above the cutting mechanism, clamps the tobacco stems and guides the cut upper tobacco leaves to be transported back and forth. A remote control device is connected to the walking mechanism and the cutting mechanism to remotely control the automatic movement of the walking mechanism and the cutting mechanism to cut the tobacco stems, thereby completing the automated batch harvesting of tobacco, reducing the labor intensity of farmers, and accurately harvesting the required upper tobacco leaves while cutting off the unwanted tobacco stems, achieving precise harvesting. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 A schematic diagram of an embodiment of the tobacco leaf harvester with stem provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the cutting mechanism; Figure 3 for Figure 1 A schematic diagram of the steering control device.

[0016] Explanation of icon numbers: 100. Upper tobacco leaf harvester with stem; 1. Base; 2. Cutting mechanism; 21. Fixed plate; 22. Movable plate; 23. Cutting blade; 3. Steering control device; 31. Base; 32. Steering wheel; 321. Rotating shaft; 33. Electronic steering sensor; 34. Return wheel; 35. Return mating surface; 351. Mating section; 36. Elastic component; 37. Swing arm; 38. Blocking component; 39. Blocking element; 4. Collection mechanism; 41. Base plate; 42. Side plate; 5. Clamping mechanism.

[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] In the existing technology, in order to cut off the unwanted tobacco stems and harvest the upper tobacco leaves, the tobacco leaves are usually harvested manually with sickles, which is inefficient and labor-intensive.

[0022] To address the aforementioned problems, this utility model proposes a harvester for upper tobacco leaves with stems.

[0023] Please see Figure 1 In one embodiment of this utility model, the upper tobacco leaf harvester with stem includes a base 1, a walking mechanism, a cutting mechanism 2, a clamping mechanism 5, a driving mechanism, and a remote control device. The walking mechanism is located on both sides of the lower part of the base 1. The cutting mechanism 2 is located on the base 1 for cutting the tobacco stem. The clamping mechanism 5 is located above the cutting mechanism 2 and can clamp the tobacco stem and guide the cut upper tobacco leaves to be transported in the front-back direction. The driving mechanism is located on the base 1 and is used to drive the clamping mechanism 5 to transport the cut upper tobacco leaves in the front-back direction. The remote control device is remotely connected to the walking mechanism and the cutting mechanism to remotely control the automatic walking of the walking mechanism and the cutting mechanism to cut the tobacco stem. Specifically, the remote control device has a remote control distance of 500-1000 meters and strong stability.

[0024] The technical solution of this utility model includes a base 1, a walking mechanism, a cutting mechanism 2, a clamping mechanism 5, and a driving mechanism. The walking mechanism drives the base 1 to move. The cutting mechanism 2 is located on the base 1 and is used to cut the tobacco stems during the movement. The clamping device is located above the cutting mechanism 2 and can clamp the tobacco stems and guide the cut upper tobacco leaves to be transported back and forth. The remote control device is remotely connected to the walking mechanism and the cutting mechanism to remotely control the automatic movement of the walking mechanism and the cutting mechanism to cut the tobacco stems, thereby completing the batch automated collection of tobacco, reducing the labor intensity of farmers, and accurately collecting the required upper tobacco leaves while cutting off the unwanted tobacco stems, thus achieving precise harvesting.

[0025] Please see Figure 2 In one embodiment of this utility model, the cutting mechanism 2 includes a fixed plate 21, a movable plate 22, and at least one cutting blade 23. It is understood that the tobacco stem is the part to be cut, while the upper tobacco leaves are the part to be harvested. The fixed plate 21 is fixed to the side of the base 1 and located below the clamping mechanism 5, corresponding to the tobacco stem. The movable plate 22 is movably mounted to the upper surface of the fixed plate 21 in a left-right direction. The cutting blade 23 includes two cooperating blades. It is understood that the two blades are positioned close together, with their cutting edges facing each other, and are respectively fixed to the fixed plate 21 and the movable plate 22, so that they cooperate to cut the tobacco leaves when the movable plate 22 moves. The cutting mechanism 2 further includes a cutting motor and a crank-connecting rod mechanism. The output shaft of the cutting motor is rotatably connected to the crank, and the connecting rod is connected to the movable plate 22. This allows the movable plate 22 to perform periodic reciprocating motion in the left-right direction when the cutting motor rotates. The crank-connecting rod structure can be adapted to a ball screw structure; this invention does not limit this, as long as rotational motion can be converted to linear motion. It is understood that since the tobacco planting spacing is pre-set, by reasonably setting the cutting motor speed and the traveling speed of the walking mechanism, the upper tobacco leaf harvester with stems can move closer to the tobacco plant, causing the movable plate 22 of the cutting motor to move closer to the fixed plate 21 for cutting. After cutting one tobacco plant, the upper tobacco leaf harvester with stems moves to the next plant, at which point the cutting motor drives the movable plate 22 away from the fixed plate 21, thus completing automatic cutting and separation. In addition, limiting baffles can be added to both sides of the movable plate 22 to limit the movable plate 22 and prevent it from colliding with the sides of the base 1. This can also reduce the travel of the blade and increase the cutting frequency. In another embodiment of this utility model, there can be two movable plates 22, which are respectively mounted to the upper and lower surfaces of the fixed plate 21 in the left and right directions. The cutting blade 23 includes two cooperating blades with their cutting edges facing each other. The two blades are respectively mounted on the two movable plates 22 so that they cooperate to cut the tobacco leaves when the two movable plates 22 move.

[0026] Specifically, in one embodiment of this utility model, the position of each tobacco plant is not fixed. In order to expand the cutting range, multiple cutting blades 23 are provided and arranged at intervals along the left and right directions, so as to cut tobacco plants at different positions and avoid the need to adjust the position of the harvester, which would affect the harvesting efficiency.

[0027] In another embodiment of this utility model, it is understood that the upper tobacco leaf harvester with stem harvests the upper tobacco leaves, while the tobacco stem in the middle will obstruct the movement of the upper tobacco leaf harvester with stem. The cutting mechanism 2 is provided in two, arranged at intervals in the vertical direction, with the upper cutting mechanism 2 corresponding to the upper end of the tobacco stem and the lower cutting mechanism 2 corresponding to the lower end of the tobacco stem. In this way, the tobacco stem is cut off during the movement to allow the upper tobacco leaf harvester with stem to move forward. At the same time, by setting two cutting mechanisms 2, the upper tobacco leaves are obtained completely while the tobacco root is preserved for further cultivation, thus achieving precise harvesting.

[0028] However, it is understandable that tobacco leaves vary in height at different maturity stages or in different production areas, and the relative height of the upper leaves and the middle stem will also change. To achieve more precise harvesting, in one embodiment of this utility model, the upper leaf and stem harvester further includes a first slide rail, which is arranged vertically on the base. Two cutting mechanisms 2 are provided, spaced vertically on the first slide rail, and can move vertically. In this way, by adjusting the height of the two cutting mechanisms 2, the two cutting mechanisms 2 can more accurately align with the upper and lower ends of the tobacco stem, thereby harvesting tobacco more accurately. By optimizing the height adjustment mechanism of the cutting mechanisms 2, it can not only adapt to tobacco from different production areas and at different maturity levels, but also significantly improve harvesting efficiency.

[0029] Furthermore, this utility model does not limit the specific adjustment method of the cutting mechanism 2 on the first slide rail. It can be manually adjusted, or a drive motor and ball screw structure can be set on the first slide rail, and the drive motor is connected to the remote control device through a wireless signal, so as to remotely set the height of each cutting mechanism 2, which is simple to operate, reduces manual intervention, and improves harvesting efficiency. Furthermore, multiple memory settings can be set on the remote control device to record the relative heights of multiple cutting mechanisms 2, each corresponding to tobacco from different origins or at different maturity levels, so as to achieve rapid adjustment. In addition, the memory settings can be continuously optimized based on actual harvesting data to ensure cutting accuracy and further improve tobacco quality.

[0030] Furthermore, in one embodiment of this utility model, the upper tobacco leaf harvester with stem also includes a visual inspection mechanism. This mechanism is mounted on the base and includes a visual camera positioned facing the cutting mechanism 2. The visual camera uses image recognition technology to monitor the height of the tobacco leaves in real time, thereby cooperating with the cutting mechanism 2 to adjust the height, ensuring precise alignment, avoiding miscutting, further improving harvesting accuracy and efficiency, and guaranteeing tobacco quality. The data from the visual inspection mechanism can also be transmitted in real time to a remote control device, allowing the operator to fine-tune the cutting height based on the real-time data to ensure accurate harvesting.

[0031] In one embodiment of this utility model, the walking mechanism includes two tracks, two track wheels, and a rotary drive component. The two tracks are arranged in a ring and are respectively located on both sides of the base 1. The two track wheels are respectively located between the two tracks to drive the tracks to rotate. The rotary drive component is connected to each track wheel to drive the track wheels to rotate synchronously. The track-driven upper tobacco leaf harvester moves stably over slopes and ditches, is not easily overturned, and is wear-resistant and durable. The rotary drive component can be connected to a high-torque motor to ensure strong power even in complex terrain, guaranteeing smooth operation of the harvester. The track surface has anti-slip patterns to enhance grip, adapt to various soil environments, reduce slippage, and further improve the harvester's passability and operational stability. This invention does not limit the specific model of the motor or the specific dimensions of the tracks, which can be changed according to the actual size of the harvester and actual needs. In one embodiment, the track circumference is 1000mm and the width is 150mm; the motor has a rated power of 500 watts, a rated current of 12A, a rated voltage of 48V, a rated speed of 2800 rpm, and an output torque of 20 N / m. The maximum speed of the harvester can reach 5 km / h. Furthermore, the number of tracks can be adaptively adjusted to meet different terrain requirements, up to a maximum of four tracks, enhancing stability and adaptability.

[0032] Specifically, in one embodiment of this invention, the tracks are made of a flexible material. Flexible tracks effectively cushion ground impacts, reduce equipment wear, and extend service life; simultaneously, their excellent deformability ensures the harvester can maneuver flexibly in rugged terrain, improving operational adaptability. Specifically, the flexible tracks are made of high-strength rubber, which is wear-resistant and tear-resistant, ensuring stable operation in complex terrain.

[0033] In addition, please see Figure 3In one embodiment of this utility model, the walking mechanism further includes a steering control device; the steering control device includes a base mounted on the base, a steering wheel rotatably mounted on the base, and an electronic steering sensor connected to the shaft of the steering wheel. The electronic steering sensor is connected to a controller that adjusts the rotational speed of the rotating drive component. An automatic return device is installed between the steering wheel and the base to drive the steering wheel to automatically return to its original position. The automatic return device ensures that the steering wheel quickly returns to its original position after being released, improving operational convenience. The electronic steering sensor transmits steering data in real time, and the controller precisely adjusts the difference in track speed to achieve flexible steering and adapt to complex terrain. The overall design is optimized, improving the harvester's operability and operating efficiency, and ensuring stable tobacco quality. The steering control device uses a high-precision sensor to ensure accurate execution of steering commands and reduce operational errors. The automatic return device uses a spring reset mechanism, which is simple in structure and responds quickly. Wireless transmission technology is used between the electronic steering sensor and the controller to reduce signal interference and improve data transmission stability. The overall design is compact, easy to maintain, further extending the harvester's service life and ensuring long-term efficient operation.

[0034] Specifically, in one embodiment of this utility model, the automatic return device includes a return wheel and a return mating surface disposed on a base. The return mating surface includes a lowest point and two mating sections extending from the lowest point around the rotating shaft to both sides. Along the extension direction of the mating sections, the distance between the mating sections and the base in the axial direction of the rotating shaft gradually increases. The return wheel is movably mounted on the rotating shaft and can move along the return mating surface as the rotating shaft rotates. An elastic component is also installed on the rotating shaft to force the return wheel to fit against the return mating surface. Under the action of the elastic component, the return wheel always remains in close contact with the return mating surface, ensuring rapid return after the steering wheel is released, thus improving operational convenience. This design effectively reduces operator fatigue, extends equipment service life, and ensures stable operation of the harvester in complex environments.

[0035] In addition, the upper tobacco leaf harvester with stem also includes a collection mechanism 4 located behind the clamping mechanism 5. The collection mechanism 4 includes a horizontally arranged base plate 41 and side plates respectively vertically arranged on both sides of the base plate 41, for collecting the upper tobacco leaves guided and conveyed by the clamping mechanism 5. It can be understood that, for ease of installation, the side plates in this invention are vertically arranged. However, in order to expand the area for receiving the upper tobacco leaves, the side plates can also be adapted to be tilted away from the other side plate. This invention does not limit the tilt angle. The angle between the side plate and the vertical direction can be 15°, 30° or 45°, as long as the receiving area can be expanded.

[0036] In one embodiment of this utility model, when the upper tobacco leaf harvester with stem is moving, by reasonably setting the speed of the cutting motor and the speed of the drive motor, the cutting cycle of the cutting mechanism 2 and the traveling speed of the walking mechanism are controlled. This allows the upper tobacco leaf harvester with stem to move closer to the tobacco plant, with the movable plate 22 of the cutting motor approaching the fixed plate 21 to perform the cutting action. After cutting one tobacco plant, the upper tobacco leaf harvester with stem moves towards the next plant, at which point the cutting motor drives the movable plate 22 away from the fixed plate 21, thus completing automatic cutting and separation. After the upper tobacco leaves are cut, they simultaneously enter the clamping space of the clamping mechanism 5, where they are clamped and transported to the rear collection mechanism 4, completing the harvest. In one embodiment, the upper tobacco leaf harvester with stem can harvest 1000-3000 plants per hour (half-cut plants per 1-3 mu of tobacco field per hour). Fuel consumption: 0.5 liters per hour unloaded with 92-octane gasoline, 1 liter per hour under load; tobacco leaf breakage rate is less than 4%. Harvesting efficiency is relatively high.

[0037] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A harvester for upper tobacco leaves with stems, characterized in that, The upper tobacco leaf harvester with stem includes: Base; The walking mechanism is located on both sides of the lower part of the base; A cutting mechanism, located on the base, is used to cut the tobacco stems; A clamping mechanism, located above the cutting mechanism, is capable of clamping the tobacco stem and guiding the upper tobacco leaves being cut to be conveyed in a front-to-back direction. A drive mechanism, located on the base, is used to drive the clamping mechanism to convey the cut upper tobacco leaves in a back-to-back direction; and, The remote control device is remotely connected to the walking mechanism and the cutting mechanism.

2. The upper tobacco leaf harvester with stem as described in claim 1, characterized in that, The cutting mechanism includes: A fixing plate is fixed to the side of the base and located below the clamping mechanism; A movable plate is movably mounted to the upper surface of the fixed plate in a left-right direction; and, At least one cutting blade, the cutting blade comprising two cooperating blades with their cutting edges facing each other, the two blades being fixed to the fixed plate and the movable plate respectively, so as to cooperate with each other to cut the tobacco leaf when the movable plate moves.

3. The upper tobacco leaf harvester with stem as described in claim 2, characterized in that, The cutting blades are provided in multiple portions, arranged at intervals along the left-right direction; and / or, The cutting mechanism is provided in two parts, which are arranged at intervals in the vertical direction.

4. The upper tobacco leaf harvester with stem as described in claim 2, characterized in that, The upper tobacco leaf harvester with stem also includes: The first slide rail is provided on the base in the vertical direction; The cutting mechanism has two parts, which are arranged vertically on the first slide rail to move vertically.

5. The upper tobacco leaf harvester with stem as described in claim 4, characterized in that, The upper tobacco leaf harvester with stem also includes: A visual inspection mechanism is disposed on the base, the visual inspection mechanism includes a visual camera, and the visual camera is disposed facing the cutting mechanism.

6. The upper tobacco leaf harvester with stem as described in claim 1, characterized in that, The walking mechanism includes: Two tracks are arranged in a ring and are respectively located on both sides of the base; Two tracked wheels are respectively disposed between the two tracks to drive the tracks to rotate; A rotary drive component is connected to each of the tracked wheels to drive the tracked wheels to rotate synchronously.

7. The upper tobacco leaf harvester with stem as described in claim 6, characterized in that, The walking mechanism also includes a steering control device; The steering control device includes a base mounted on a base, a steering wheel rotatably mounted on the base, and an electronic steering sensor connected to the shaft of the steering wheel. The electronic steering sensor is connected to a controller that adjusts the rotational speed of the rotary drive component. An automatic return device for driving the steering wheel to automatically return to its original position is installed between the steering wheel and the base.

8. The upper tobacco leaf harvester with stem as described in claim 7, characterized in that, The automatic return device includes a return wheel and a return mating surface on the base. The return mating surface includes a lowest point and two mating sections extending from the lowest point around the axis of the steering wheel to both sides. Along the extension direction of the mating sections, the distance between the mating sections and the base in the axial direction of the axis gradually increases. The return wheel is movably mounted on the axis and can move along the return mating surface as the axis rotates. An elastic component is also installed on the axis to force the return wheel to fit against the return mating surface.

9. The upper tobacco leaf harvester with stem as described in claim 6, characterized in that, Each of the tracks is made of a flexible material.

10. The upper tobacco leaf harvester with stem as described in claim 1, characterized in that, The upper tobacco leaf harvester with stem also includes a collection mechanism located behind the clamping mechanism. The collection mechanism includes a horizontally arranged base plate and side plates respectively arranged vertically on both sides of the base plate, for collecting the upper tobacco leaves guided and conveyed by the clamping mechanism.

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