A tobacco harvesting machine employing a hinged semi-circular cutter

Abstract

The application discloses a tobacco harvesting machine adopting a half-round cutter, which comprises symmetrical supporting rods, characterized in that: opposite two side ends of the symmetrical supporting rods are fixedly connected through horizontal rods respectively, the end of each supporting rod is fixedly connected with a supporting leg respectively, the lower end of each supporting leg is rotatably connected with a walking wheel respectively, and two horizontal rods are connected with a cutting assembly through a lifting assembly; the cutting assembly comprises a plurality of electric push rods which are fixed at the end of a lower cross beam respectively. The application relates to the technical field of tobacco harvesting equipment, in particular to a tobacco harvesting machine adopting a half-round cutter, which adopts a half-round cutter as a main harvesting tool, so that the cutting knife moves up and down along the tobacco stem to cut the petiole of tobacco leaves, the damage to the tobacco plant is reduced, the layered harvesting of tobacco leaves at different levels is realized while the cutting effect is ensured, and the one-time harvesting requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco harvesting equipment, in particular to a tobacco harvesting machine adopting a matched half-round cutter. BACKGROUND

[0002] In the field of existing tobacco harvesting machines, the vast majority of equipment adopts flexible rollers as the main harvesting tool. Although this harvesting method can achieve the collection of tobacco in some cases, the harvesting efficiency of flexible rollers is relatively low, which is not suitable for large-scale tobacco harvesting operations. Flexible rollers may not achieve clean and neat cutting when cutting tobacco, resulting in damage to tobacco or incomplete cutting. Traditional harvesting machines often have difficulty in accurately harvesting specific levels of tobacco, such as bottom leaves. The use of flexible rollers in the operation process can cause significant damage to tobacco plants, and even lead to tobacco plant lodging.

[0003] In order to overcome the above problems, the present application proposes an innovative design of a harvesting machine, which adopts a matched half-round cutter as the main harvesting tool to achieve the harvesting of tobacco. SUMMARY

[0004] The present application provides a tobacco harvesting machine adopting a matched half-round cutter, which adopts a matched half-round cutter as the main harvesting tool, so that the cutting knife moves up and down along the tobacco stem to cut the petiole of tobacco, reduces the damage to tobacco plants, and achieves the layered harvesting of different levels of tobacco and the demand for one-time harvesting while ensuring the cutting effect.

[0005] A tobacco harvesting machine adopting a matched half-round cutter, comprising symmetrical support rods, characterized in that: the opposite sides of the symmetrical support rods are respectively fixedly connected through crossbars, the ends of each support rod are respectively fixedly connected with support legs, the lower ends of each support leg are respectively rotationally connected with walking wheels, and two crossbars are connected with a cutting assembly through a lifting assembly.

[0006] The cutting assembly comprises a plurality of electric push rods, the electric push rods are respectively fixed at the ends of a lower crossbeam, the lower crossbeam is arranged on the lower side of the crossbar, the extension rod ends of each electric push rod are respectively fixedly connected with limiting blocks, each limiting block is respectively fixedly connected with a support shaft, the lower end of each support shaft is respectively fixedly connected with a fixed block, each fixed block is respectively fixed on one side of a tobacco support plate, two fixed blocks on the same side are fixedly connected through a support arm, the lower side of the support arm is fixedly connected with a connecting block, the connecting block is fixedly connected with a cutter handle, and the opposite ends of the cutter handle are respectively fixedly connected with cutting knives.

[0007] The upper sides of each pair of tobacco support plates are respectively provided with tobacco conveying assemblies.

[0008] As a further limitation of the technical solution, the cutting knife is annular, the upper side of the cutting knife is sharpened, and the cutting knives are symmetrically arranged to form an annular area around the tobacco rod.

[0009] As a further limitation of the technical solution, the lifting assembly includes an upper cross beam, the upper sides of the two cross bars are fixedly connected to the two ends of the upper cross beam, the center of the upper cross beam is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a lead screw, the lead screw is threadedly connected to the lower cross beam, and the lower cross beam is penetrated by two guide columns, and the two guide columns are fixedly connected to the upper cross beam.

[0010] As a further limitation of the technical solution, the tobacco conveying assembly includes an inner conveying module and an outer conveying module, the inner conveying module includes rotating rods one, the upper ends and the lower ends of the two support shafts on the same side are respectively rotatably connected to the two ends of the rotating rods one, each pair of rotating rods one is matched connected with a plurality of uniformly arranged inner conveying belts, the outer conveying module includes rotating rods two, the opposite side ends of the two cross bars are respectively fixedly connected to support blocks, each support block is fixedly connected to a beam column, the two ends of the two beam columns on the same side are respectively rotatably connected to the two ends of the rotating rods two, and each pair of rotating rods two is matched connected with a plurality of uniformly arranged outer conveying belts, and the outer sides of the support rods are respectively fixedly connected to tobacco baskets.

[0011] As a further limitation of the technical solution, the ends of each rotating rod one and rotating rod two on the upper side are respectively fixedly connected to the output shafts of the second motors, and the beam columns and the support shafts are respectively fixedly connected to the corresponding second motors.

[0012] As a further limitation of the technical solution, each cutter handle is arranged between each pair of tobacco support plates.

[0013] As a further limitation of the technical solution, the tobacco basket is a square groove.

[0014] Compared with the prior art, the advantages and positive effects of the present application are:

[0015] The efficiency and quality of tobacco harvesting are improved, the damage to the tobacco plants is reduced, more accurate and efficient harvesting operations are realized, the cutting knife can be moved to a height slightly higher than a single layer of tobacco leaves by control, the layered harvesting of each layer of tobacco leaves can be realized, the cutting knife can be moved to the upper part of the tobacco rod at one time, the multi-layer tobacco leaves can be harvested at one time, the harvesting machine can realize the layered harvesting and one-time harvesting of different layers of tobacco leaves while ensuring the cutting effect, the cutter is closed and cut along the tobacco rod, and good cutting effect and efficiency can be obtained.

[0016] The cutting knives are symmetrically arranged, can form a ring-shaped area around the tobacco stem, and cut the tobacco leaves through the cutting assembly, the limiting block and the supporting shaft are moved through the extension and retraction of the extension rod of the electric push rod, the supporting shaft drives the fixed block, the tobacco leaf supporting plate, the supporting arm, the connecting block and the cutting knife to move, the cutting knife moves, the extension rod of the electric push rod extends, the cutting knives are away from each other, the extension rod of the electric cutting retracts to drive the cutting knives to move close to each other, the cutting knives form a ring-shaped area around the tobacco stem, the cutting knives move from bottom to top to directly cut off the connection between the tobacco leaf petiole and the tobacco stem, the interference with the tobacco leaves in the harvesting process can be avoided to the maximum extent, the safety and reliability of the harvesting are improved, the cutting knives vertically move along the direction of the tobacco stem to harvest the tobacco leaves, the damage to the tobacco plants is small, the force is small, and the tobacco plants are not prone to lodging. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. It is expressly understood that the drawings are presented for purposes of illustration and description and are not intended as a limitation on the scope of the application. It should be apparent that the drawings are not necessarily to scale as the illustrations are for the purposes of clarity, illustration and conformance to specifications. In the drawings:

[0018] Figure 1 A perspective view of the present application Figure One ;

[0019] Figure 2 A perspective view of the present application Figure Two ;

[0020] Figure 3 A perspective view of the present application Figure Three ;

[0021] Figure 4 A partial enlarged view of A in the present application Figure 3 ;

[0022] Figure 5 A perspective view of the present application Figure Four ;

[0023] Figure 6 A perspective view of the present application Figure Five .

[0024] In the figure: 1, support rod, 2, tobacco basket, 3, support leg, 4, walking wheel, 5, tobacco leaf support plate, 51, fixed block, 7, outer transmission belt, 9, beam column, 10, fixed block, 11, rotating rod two, 12, motor two, 13, inner transmission belt, 14, rotating rod one, 15, upper cross beam, 16, motor, 17, guide column, 18, lower cross beam, 19, tool handle, 20, cutting knife, 21, electric push rod, 22, connecting block, 23, support arm, 24, cross rod, 25, limit block, 26, support shaft, 27, screw rod. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the drawings and embodiments.

[0026] A tobacco harvesting machine using a half-round tool includes symmetrical support rods 1, the opposite ends of each of the symmetrical support rods 1 are fixedly connected through cross rods 24, the ends of each of the support rods 1 are fixedly connected with support legs 3, the lower ends of each of the support legs 3 are rotatably connected with walking wheels 4, and two of the cross rods 24 are connected with a cutting assembly through a lifting assembly.

[0027] In the embodiment, the walking wheels 4 are Mecanum wheels, which are prior art and will not be described herein again. The Mecanum wheels are driven by the motors arranged at the bottom to realize multi-angle and multi-direction walking modes, and the harvesting machine can be controlled to move in multiple angles and directions.

[0028] The cutting assembly includes a plurality of electric push rods 21, the electric push rods 21 are fixed at the ends of a lower cross beam 18, the lower cross beam 18 is arranged at the lower side of the cross rod 24, the telescopic rod ends of each of the electric push rods 21 are fixedly connected with limit blocks 25, each of the limit blocks 25 is fixedly connected with a support shaft 26, the lower end of each of the support shafts 26 is fixedly connected with a fixed block 51, each of the fixed blocks 51 is fixed at one side of a tobacco leaf support plate 5, two of the fixed blocks 51 at the same side are fixedly connected through a support arm 23, the lower side of the support arm 23 is fixed with a connecting block 22, the connecting block 22 is fixedly connected with a tool handle 19, and the opposite ends of the tool handle 19 are fixedly connected with cutting knives 20.

[0029] The upper sides of each pair of the tobacco leaf support plates 5 are provided with tobacco transmission assemblies.

[0030] The cutting knives 20 are annular, the upper sides of the cutting knives 20 are sharpened, and the cutting knives 20 are symmetrically arranged to form an annular region to wrap around a tobacco stem.

[0031] In the embodiment, the height of the support rod 1 ensures that it can exceed the height of the tobacco plant, the tobacco leaves are cut by the cutting assembly, the telescopic rod of the electric push rod 21 is telescoped to drive the limiting block 25 and the support shaft 26 to move, the support shaft 26 drives the fixed block 51 and the tobacco leaf support plate 5, the support arm 23, the connecting block 22 and the cutting knife 20 to move, the cutting knife 20 moves, the telescopic rod of the electric push rod 21 is extended, the cutting knives 20 are away from each other, the telescopic rod of the electric cutting 21 is retracted to drive the cutting knives 20 to move close to each other, the cutting knives 20 form a ring-shaped area around the tobacco stem, the cutting knives 20 are lifted by the lifting assembly to cut the tobacco leaves from top to bottom, the cut tobacco leaves fall on the tobacco leaf support plate 5, and the lifting assembly drives the cutting knives 20 to move downward to the original position after cutting the tobacco leaves.

[0032] The lifting assembly comprises an upper cross beam 15, the upper sides of the two cross rods 24 are fixedly connected to the two ends of the upper cross beam 15, the center of the upper cross beam 15 is fixedly connected to the motor 16, the output shaft of the motor 16 is fixedly connected to the lead screw 27, the lead screw 27 is threadedly connected to the lower cross beam 18, the lower cross beam 18 is penetrated by the two guide columns 17, and the two guide columns 17 are fixedly connected to the upper cross beam 15.

[0033] In the embodiment, the motor 16 is a stepping motor, the motor 16 drives the lead screw 27 to rotate, the lead screw 27 can drive the lower cross beam 18 to move vertically along the guide column 17, the lead screw 27 drives the lower cross beam 18 to move upward to drive the electric push rod 21, the support shaft 26 and the cutting knife 20 to move upward, thereby cutting the tobacco leaves, the motor 16 drives the lower cross beam 18 to move downward to drive the cutting knife 20 to move downward to the original position, the motor drives the lead screw 27 to rotate to drive the cutting knife 20 to move upward and downward, the distance of the upward movement of the cutting knife 20 can be achieved, the cutting knife 20 is controlled to move only slightly higher than a single layer of tobacco leaves, thereby achieving the layered harvesting of each layer of tobacco leaves, and the cutting knife 20 can also be moved upward to the upper part of the tobacco stem at one time to harvest multiple layers of tobacco leaves at one time.

[0034] The tobacco leaf conveying assembly comprises an inner conveying module and an outer conveying module, the inner conveying module comprises rotating rods one 14, the upper ends and the lower ends of the two support shafts 26 on the same side are rotatably connected to the two ends of the rotating rods one 14 respectively, each pair of rotating rods one 14 is matchedly connected to a plurality of uniformly arranged inner conveying belts 13, the outer conveying module comprises rotating rods two 11, the opposite side ends of the two cross rods 24 are fixedly connected to support blocks 10 respectively, each support block 10 is fixedly connected to a beam column 9, the two ends of the two beam columns 9 on the same side are rotatably connected to the two ends of the rotating rods two 11 respectively, and each pair of rotating rods two 11 is matchedly connected to a plurality of uniformly arranged outer conveying belts 7.

[0035] In the embodiment, the rotation of the first rotating rod 14 can drive the inner transmission belt 13 to rotate, and the rotation of the second rotating rod 11 can drive the outer transmission belt 7 to rotate. The inner transmission belt 13 of the inner transmission assembly can be lifted and retracted to first gather the tobacco leaves to the bottom of the outer transmission belt 7, and then the inner transmission belt 13 and the outer transmission belt 7 jointly transmit the tobacco leaves upward to the tobacco basket 2 at the top.

[0036] The end of each of the first rotating rod 14 and the second rotating rod 11 on the upper side is fixedly connected with the output shaft of the second motor 12, and the beam column 9 and the support shaft 26 are fixedly connected with the corresponding second motor 12.

[0037] The second motor 12 can drive the first rotating rod 14 and the second rotating rod 11 to rotate, so as to drive the rotation of the inner transmission belt 13 and the outer transmission belt 7.

[0038] Each cutter handle 19 is arranged between each pair of tobacco leaf support plates 5.

[0039] The tobacco basket 2 is a square groove.

[0040] When using the harvester to harvest multi-layer tobacco leaves, the device is controlled to move into the tobacco field, the telescopic rod of the electric push rod 21 is controlled to extend, the limiting block 25 and the support shaft 26 are driven to move, the opening action of the cutting knife 20 is realized, the telescopic rod of the electric push rod 21 is driven to retract, the cutting knife 20 is driven to move close to each other, the annular area is formed to wrap the tobacco stem, the motor 16 and the second motor 12 are started, the cutting knife 20 is moved upward to the position above the layer of tobacco leaves to be harvested and the layer of tobacco leaves not to be harvested through the lifting assembly, each layer of tobacco leaves is cut in sequence during the upward movement of the cutting knife 20, the cut tobacco leaves fall on the tobacco leaf support plate 5, the second motor 12 drives the first rotating rod 14 and the second rotating rod 11 to rotate, and drives the inner transmission belt 13 and the outer transmission belt 7 to move, the tobacco leaves are gathered to the bottom of the outer transmission belt 7 through the inner transmission belt 13, and then are transmitted to the tobacco basket 2 by the outer transmission belt 7, after the cutting of the tobacco leaves is completed, the motor 16 is operated to drive the lead screw 27 to rotate reversely, so that the lower cross beam 18 and the cutting knife 20 move downward to the original position, and the next cutting is prepared, the tobacco leaves are transmitted to the tobacco basket 2 at the top, and after the tobacco basket is filled, the tobacco leaves are taken out manually for subsequent processing.

[0041] When the tobacco leaves are harvested by using the tobacco leaf harvester, the tobacco leaves are harvested by using the tobacco leaf harvester, the device is controlled to move into the tobacco field, the telescopic rod of the electric push rod 21 is controlled to extend, the limiting block 25 and the supporting shaft 26 are driven to move, the opening action of the cutting knife 20 is realized, the telescopic rod of the electric push rod 21 is driven to retract, the cutting knife 20 is driven to move close to each other, the annular area is formed to wrap the tobacco stem, the motor 16 and the motor 12 are started, the cutting knife 20 is moved up to the position between the tobacco leaves and the tobacco leaves above the tobacco leaves through the lifting assembly, the tobacco leaves are cut off in the process of moving up of the cutting knife 20, the cut tobacco leaves fall on the tobacco leaf supporting plate 5, the motor 12 drives the rotating rod 14 and the rotating rod 11 to rotate, the inner conveying belt 13 and the outer conveying belt 7 are driven to move, the tobacco leaves are gathered to the bottom of the outer conveying belt 7 through the inner conveying belt 13, and then the tobacco leaves are conveyed into the tobacco basket 2 by the outer conveying belt 7, after the tobacco leaves are cut, the motor 16 is operated, the screw rod 27 is reversely rotated, the lower cross beam 18 and the cutting knife 20 are moved downward to the original position, and the next cutting is prepared, the tobacco leaves are conveyed into the tobacco basket 2 at the top, and after the tobacco basket is filled, the tobacco leaves are taken out manually and subjected to subsequent treatment.

[0042] In the embodiment, a sensor and a controller can also be arranged, the sensor can adopt a visual sensor, the sensor is installed at a position corresponding to the lower side of the cutting edge of the cutting knife 20 of the cutter handle 19, the sensor and the controller communicate through a transmission module, the controller controls the movement of the motor 16, the motor 12 and the electric push rod 21, when the visual sensor detects that the tobacco stem is located in the middle of the cutting knife 20, the controller controls the telescopic rod of the electric push rod 21 to retract to make the cutting knife 20 close, at this time, the cutting knife 20 wraps the tobacco stem, the visual sensor communicates with the controller, the controller controls the telescopic rod of the electric push rod 21 to stop moving, at this time, the cutting knife 20 remains stationary, the controller controls the motor 16 and the motor 12 to work, and the operation of cutting the tobacco leaves and conveying the tobacco leaves into the tobacco basket 2 is realized.

[0043] In conclusion, the tobacco leaf harvester can improve the efficiency and quality of tobacco leaf harvesting, reduce the damage to tobacco stems, realize more accurate and efficient harvesting operation, can control the cutting knife to move to a height slightly higher than the single-layer tobacco leaves, realize the layered harvesting of each layer of tobacco leaves, can also realize the one-time upward movement of the cutting knife to the upper part of the tobacco stem to realize the one-time harvesting of the multi-layer tobacco leaves, the tobacco leaf harvester can realize the layered harvesting of different layers of tobacco leaves and the one-time harvesting requirement while ensuring the cutting effect, the cutting knife is closed and cut along the tobacco stem direction, and good cutting effect and efficiency can be obtained.

[0044] The cutting knives are symmetrically arranged, can form a ring-shaped area to enclose the tobacco stem, and cut the tobacco leaves through the cutting assembly. The telescopic rod of the electric push rod is extended and retracted to drive the limiting block and the supporting shaft to move. The supporting shaft drives the fixed block, the tobacco leaf supporting plate, the supporting arm, the connecting block and the cutting knife to move. The cutting knife moves, the telescopic rod of the electric push rod is extended, the cutting knives are away from each other, the telescopic rod of the electric cutting is retracted to drive the cutting knives to move close to each other, the cutting knives form a ring-shaped area to enclose the tobacco stem, and the cutting knife moves from bottom to top to directly cut off the connection between the tobacco leaf petiole and the tobacco stem. The cutting knife can maximize the avoidance of interference with the tobacco leaves during the harvesting process, thereby improving the safety and reliability of the harvesting. The cutting knife vertically moves along the direction of the tobacco stem to harvest the tobacco leaves, has small damage to the tobacco plant, has small force, and is not easy to cause the tobacco plant to lay flat.

[0045] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A tobacco harvester employing a pairing semi-circular blade, comprising symmetrical support rods (1), characterized in that: The two opposite ends of the symmetrical support rods (1) are fixedly connected by crossbars (24), and the end of each support rod (1) is fixedly connected to a support leg (3). The lower end of each support leg (3) is rotatably connected to a walking wheel (4). The two crossbars (24) are connected to the cutting assembly through a lifting assembly. The cutting assembly includes several electric push rods (21), which are fixed to the ends of the lower crossbeam (18). The lower crossbeam (18) is located on the lower side of the crossbar (24). The telescopic rod end of each electric push rod (21) is fixedly connected to a limiting block (25). Each limiting block (25) is fixedly connected to a support shaft (26). The lower end of each support shaft (26) is fixedly connected to a fixing block (51). Each fixing block (51) is fixed to one side of the tobacco leaf support plate (5). Two fixing blocks (51) on the same side are fixedly connected by a support arm (23). A connecting block (22) is fixedly connected to the lower side of the support arm (23). The connecting block (22) is fixedly connected to a tool handle (19). The opposite ends of the tool handle (19) are fixedly connected to a cutting blade (20). Each pair of tobacco leaf support plates (5) is provided with a tobacco leaf conveying assembly on its upper side; The cutting blade (20) is ring-shaped, and the upper side of the cutting blade (20) is sharpened. The cutting blades (20) are symmetrically arranged and can form a ring-shaped area around the cigarette rod. The lifting assembly includes an upper crossbeam (15), with the upper middle of the two crossbars (24) fixedly connected to both ends of the upper crossbeam (15), a motor (16) fixedly connected to the center of the upper crossbeam (15), and a lead screw (27) fixedly connected to the output shaft of the motor (16). The lead screw (27) is threadedly connected to the lower crossbeam (18), and the lower crossbeam (18) is passed through by two guide posts (17), which are fixedly connected to the upper crossbeam (15). The tobacco leaf conveying assembly includes an inner conveying module and an outer conveying module. The inner conveying module includes a rotating rod (14). The upper and lower ends of the two support shafts (26) on the same side are rotatably connected to the two ends of the rotating rod (14). Each pair of rotating rods (14) is matched and connected to several evenly arranged inner conveying belts (13). The outer conveying module includes a rotating rod (11). The opposite ends of the two crossbars (24) are fixedly connected to support blocks (10). Each support block (10) is fixedly connected to a beam (9). The two ends of the two beams (9) on the same side are rotatably connected to the two ends of the rotating rod (11). Each pair of rotating rods (11) is matched and connected to several evenly arranged outer conveying belts (7). The outer side of the support rod (1) is fixedly connected to the tobacco basket (2). The ends of each of the upper rotating rods 1 (14) and 2 (11) are respectively fixedly connected to the output shaft of motor 2 (12), and the beam column (9) and the support shaft (26) are respectively fixedly connected to the corresponding motor 2 (12).

2. A tobacco harvester employing a pairing semi-circular blade as described in claim 1, characterized in that: Each of the said tool holders (19) is respectively disposed between each pair of said tobacco leaf support plates (5).

3. A tobacco harvester employing a pairing semi-circular blade as described in claim 2, characterized in that: The tobacco basket (2) is a square trough.

Images