Tobacco leaf carrier for tobacco harvesting

Abstract

The utility model relates to tobacco leaf harvesting machinery technical field discloses a kind of tobacco leaf carrying device for tobacco harvesting, including carrying base, the travelling mechanism of installation in the bottom of carrying base, the top of fixed installation in carrying base and the setting of square frame is set around frame, for the placing rack of good tobacco leaf of harvesting, sliding installation in the inside of tobacco leaf storage area along X-axis direction is sliding frame, setting in the inside of sliding frame and sliding installation on the bracket of support on sliding frame along Z-axis direction, the top of carrying base and the inside of around frame are jointly formed tobacco leaf storage area, placing rack is set to the front end in the inside of tobacco leaf storage area, sliding frame is driven sliding by reciprocating drive mechanism, bracket is connected with counterweight balance type lifting mechanism;The utility model places the tobacco leaf received by harvesting personnel directly into carrying cart, solve the problem of big labor intensity caused by carrying personnel or harvesting personnel carrying tobacco leaf, improve the efficiency of tobacco leaf harvesting work.

Description

Technical Field

[0001] This utility model relates to the field of tobacco harvesting machinery technology, and in particular to a tobacco harvesting transport vehicle. Background Technology

[0002] China is a major tobacco producer and consumer globally, with highly concentrated planting areas. The core planting zones are well-suited to the light, temperature, and soil conditions for tobacco growth, and the planting management system has been standardized. The core planting processes include seedling raising, transplanting, field management, harvesting, and curing.

[0003] The core of tobacco leaf harvesting is "adapting to the needs of processing and harvesting precisely by part". Manual harvesting still dominates the process. Manual harvesting can accurately control the maturity of the harvested tobacco leaves, ensuring the core quality requirements. It can also be handled gently to ensure the integrity of the tobacco leaves, reducing quality loss caused by physical damage. At the same time, the initial screening is completed during harvesting, reducing the pressure on subsequent processes.

[0004] However, manual harvesting also has the following drawbacks: During the harvesting process, harvesters need to gather the tobacco leaves at several fixed locations, and then other porters or harvesters will carry them to the field for transportation or subsequent processing. The labor intensity of the harvesters or porters is relatively high, and it slows down the efficiency of the harvesting work.

[0005] This results in high labor intensity for harvesters and transporters, and requires the cooperation of multiple people to complete the harvesting work. Utility Model Content

[0006] The main technical problem to be solved by this utility model is to provide a tobacco leaf transport vehicle for tobacco harvesting, which allows harvesters to directly place the harvested tobacco leaves into the transport vehicle, thus solving the problem of high labor intensity caused by transporters or harvesters carrying tobacco leaves and improving the efficiency of tobacco leaf harvesting.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A tobacco leaf transport device for tobacco harvesting includes a transport base and further includes: The traveling mechanism is installed at the bottom of the transport base; The frame is fixedly installed on top of the transport base and is set in the form of a square frame. The top of the transport base and the inside of the frame together form a tobacco storage area. A shelf for holding harvested tobacco leaves is located at the front end of the tobacco storage area. The carriage is slidably installed inside the tobacco storage area along the X-axis and is driven to slide by a reciprocating drive mechanism; The support frame is located inside the slide and is slidably mounted on the slide along the Z-axis, and is connected to a counterweight-balanced lifting mechanism.

[0008] The following are further optimizations of the above technical solution by this utility model: The lower end of the carriage is provided with a pull-down mechanism for pulling down the support frame when it has fallen to its lowest position.

[0009] Further optimization: The front end of the enclosure is provided with a shading mechanism, which is used to provide shade for the tobacco leaves in the tobacco storage area.

[0010] Further optimization: The counterweight-balanced lifting mechanism includes a pair of counterweights slidably mounted on the slide along the Z-axis. A pair of slide grooves extending along the Z-axis are respectively opened on the two side walls of the slide. A slider is slidably mounted in each slide groove, and the slider is fixedly connected to the support frame. A steel wire rope is fixedly connected between the slider and the corresponding counterweight. Each steel wire rope passes around a set of steering components.

[0011] Further optimization: The steering assembly includes at least one pair of steering wheels, both of which are rotatably mounted on the carriage, and the position of each steering wheel is higher than the position of the slide and the counterweight.

[0012] Further optimization: The pull-down mechanism includes a limiting plate and a pull-down rod. The limiting plate is located below the support frame and a limiting block is fixed on its top. A pressure detection element and an electromagnetic chuck are installed on the top of the limiting block. The two ends of the pull-down rod are fixedly connected to the bottom of the limiting plate and the slide, respectively.

[0013] Further optimization: The shielding mechanism includes a take-up roller and a shade net wound on the take-up roller. A stop bar extending along the Y-axis is fixed to the free end of the shade net, and several pairs of equally spaced stop blocks are fixed to the top of the enclosure.

[0014] Further optimization: A winding roller is rotatably installed at the top of the front end of the frame, and the shading net passes around the side wall of the winding roller.

[0015] Further optimization: The reciprocating drive mechanism includes a drive pulley, a driven pulley, and a transmission belt wound around the drive pulley and the driven pulley. The drive pulley and the driven pulley are respectively rotatably installed at both ends of the tobacco storage area. The drive pulley is driven by a drive motor, and the transmission belt is fixedly connected to the slide frame through a connecting block.

[0016] Further optimization: A battery is installed at the rear end of the transport base, and a control panel is set at the upper rear side of the enclosure.

[0017] The present invention adopts the above technical solution and has the following beneficial effects: 1. The present invention adopts the above-mentioned technical solution, which is ingenious and reasonable in structure. By making the transport vehicle move synchronously with the harvesters, the harvesters can directly place the picked tobacco leaves on the support frame of the transport vehicle without the need for additional transporters. This effectively solves the problem of high labor intensity caused by manual transfer or harvesters taking on the task of transporting tobacco leaves during the harvesting process, and significantly improves the overall efficiency of tobacco leaf harvesting operations.

[0018] 2. The height of the support frame can be lowered synchronously as the weight of the tobacco leaves it supports increases, ensuring that the tobacco leaves are always placed at a comfortable operating height for harvesters, which greatly reduces the difficulty of placing tobacco leaves and improves the convenience of the operation.

[0019] 3. A shading mechanism is installed at the front of the transport vehicle. This mechanism is used to shade and protect the tobacco leaves in the tobacco storage area. It can effectively prevent the tobacco leaves from wilting, losing moisture and other quality deterioration problems caused by prolonged exposure to strong sunlight, thus ensuring the appearance and internal quality of the tobacco leaves after harvesting. Attached Figure Description

[0020] 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 these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model; Figure 2 for Figure 1 Schematic sectional view along the middle AA direction; Figure 3 This is a schematic diagram of the counterweight-balanced lifting mechanism in an embodiment of this utility model.

[0022] The components include: 1. Handling base; 2. Enclosure; 3. Tobacco storage area; 4. Placement rack; 5. Slide rack; 6. Support frame; 7. Counterweight; 8. Slide groove; 9. Sliding block; 10. Steel wire rope; 11. Steering wheel; 12. Limiting plate; 13. Pull-down pole; 14. Limiting block; 15. Pressure detection element; 16. Electromagnetic chuck; 17. Take-up roller; 18. Shading net; 19. Stop bar; 20. Stop block; 21. Winding roller; 22. Drive pulley; 23. Driven pulley; 24. Transmission belt; 25. Drive motor; 26. Connecting block; 27. Battery; 28. Control panel; 29. ​​Torsion spring; 30. Limiting hole; 31. Limiting component; 32. Fixed rod; 33. Sliding rod; 34. Positioning component. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] Example 1 like Figures 1-3 As shown in the figure, a tobacco leaf transport device for tobacco harvesting includes a transport base 1, a traveling mechanism, a frame 2, a placement frame 4, a slide 5, and a support frame 6.

[0025] like Figure 1 As shown, the traveling mechanism is installed at the bottom of the transport base 1.

[0026] In this embodiment, the traveling mechanism can be either a commercially available wheeled traveling structure or a tracked traveling structure.

[0027] The structure, connection relationships, and working principle of the traveling mechanism are all existing technologies and are well known to those skilled in the art, so they will not be described in detail here.

[0028] Preferably, the frame 2 is fixedly installed on the top of the transport base 1 and is arranged in the form of a square frame. The top of the transport base 1 and the interior of the frame 2 together form the tobacco storage area 3.

[0029] like Figure 1 As shown, the placement rack 4 is used to hold the harvested tobacco leaves and is located at the front end inside the tobacco leaf storage area 3.

[0030] In this embodiment, the placement rack 4 is composed of several placement rods that are equidistantly spaced, and each placement rod extends along the X-axis.

[0031] Preferably, the slide 5 is slidably installed inside the tobacco storage area 3 along the X-axis direction and is driven to slide by a reciprocating drive mechanism.

[0032] like Figures 1-3 As shown, the support frame 6 is located inside the slide 5 and is slidably mounted on the slide 5 along the Z-axis direction, and is connected to a counterweight-balanced lifting mechanism.

[0033] In this embodiment, the support frame 6 includes a slide block and several support rods that are equidistantly spaced. The two ends of the slide block are slidably mounted on the slide frame 5 along the Z-axis direction, and the support rods extend along the X-axis direction.

[0034] Furthermore, the supporting rods and the placement rods of the placement frame 4 are arranged in an alternating manner.

[0035] like Figure 2 and Figure 3 As shown, the counterweight-balanced lifting mechanism includes a pair of counterweight blocks 7 slidably mounted on the slide 5 along the Z-axis direction. A pair of slide grooves 8 extending along the Z-axis direction are respectively opened on the two side walls of the slide 5. A slider 9 is slidably mounted in each slide groove 8, and the slider 9 is fixedly connected to the support frame 6.

[0036] In this embodiment, the groove 8 is configured to provide precise guiding constraints for the slider 9.

[0037] Furthermore, the slider 9 is fixedly connected to the support frame 6, which restricts the horizontal deviation or torsion of the support frame 6 during the lifting process, ensuring that the support frame 6 always moves smoothly along the Z-axis direction, and avoiding the occurrence of tobacco leaves falling or uneven loading.

[0038] Preferably, a steel wire rope 10 is fixedly connected between the slider 9 and the corresponding counterweight 7, and each steel wire rope 10 passes around a set of steering components.

[0039] In this embodiment, the linkage design is achieved through the steel wire rope 10 between the counterweight 7 and the support frame 6 and the steering assembly, so that the weight of the support frame 6 and the tobacco leaves can be balanced by the gravity of the counterweight 7.

[0040] When harvesters place tobacco leaves onto the support frame 6, the support frame 6 will adaptively lower its height along the Z-axis as the weight of the tobacco leaves increases. The height adjustment can be achieved without additional power drive, so that the height of the tobacco leaves is always kept within the comfortable operating range of the harvesters, which greatly reduces the labor intensity of harvesters who frequently bend over and lift.

[0041] Meanwhile, the gravity compensation effect of the counterweight 7 can offset the weight of the support frame 6 and part of the tobacco leaf weight. When the support frame 6 is reset, it only needs to overcome a small friction force to quickly rise back to the initial height, which combines energy saving and ease of operation.

[0042] like Figure 3 As shown, the steering assembly includes at least one pair of steering wheels 11, both of which are rotatably mounted on the carriage 5, and the position of each steering wheel 11 is higher than the position of the slide 8 and the counterweight 7.

[0043] In this embodiment, the steering wheel 11 not only enables the wire rope 10 to turn and change direction, but also keeps the wire rope 10 in a taut state, thus avoiding frictional interference between the wire rope 10 and the slide 8 and the counterweight 7.

[0044] Meanwhile, the rolling contact of the steering wheel 11 replaces the sliding contact of the wire rope 10, which greatly reduces the wear of the wire rope 10 and extends the service life of this utility model.

[0045] Moreover, the rotating installation of the steering wheel 11 reduces the movement resistance of the wire rope 10, ensuring the smoothness of the lifting and lowering action of the support frame 6.

[0046] like Figure 1 and Figure 2 As shown, the reciprocating drive mechanism includes a drive pulley 22, a driven pulley 23, and a transmission belt 24 wound around the drive pulley 22 and the driven pulley 23. The drive pulley 22 and the driven pulley 23 are respectively rotatably installed at both ends of the tobacco storage area 3. The drive pulley 22 is driven by a drive motor 25, and the transmission belt 24 is fixedly connected to the slide 5 through a connecting block 26.

[0047] Preferably, a battery 27 is installed at the rear end of the transport base 1, and a control panel 28 is provided at the upper rear side of the frame 2.

[0048] In this embodiment, the storage battery 27 serves as the power source for the transport vehicle, providing stable power to all electrical units of the entire machine.

[0049] In this embodiment, the control panel 28 establishes an electrical signal connection with the drive motor 25, and can realize adjustable control of the start / stop status, rotation direction and running speed of the drive motor 25 by outputting control commands, thus meeting the power adjustment needs of the transport vehicle under different working conditions.

[0050] Example 2 The difference between this embodiment and the above embodiments is that: like Figure 1 As shown, the lower end of the slide 5 is provided with a pull-down mechanism, which is used to pull down the support frame 6 when it has fallen to the lowest position.

[0051] Preferably, the pull-down mechanism includes a limiting plate 12 and a pull-down rod 13.

[0052] In this embodiment, the pull-down pole 13 is powered by the storage battery 27 and connected to the control panel 28.

[0053] Preferably, the limiting plate 12 is located below the support frame 6, and a limiting block 14 is fixed on its top. A pressure detection element 15 and an electromagnetic chuck 16 are installed on the top of the limiting block 14.

[0054] In this embodiment, both the pressure sensing element 15 and the electromagnetic chuck 16 can be commercially available general models, reducing the cost of equipment development and mass production.

[0055] Moreover, both types of components are connected to the control panel 28 via electrical signals, facilitating centralized management.

[0056] In this embodiment, the bottom of the support frame 6 is provided with a metal contact surface that is compatible with the electromagnetic chuck 16. After the electromagnetic chuck 16 is powered on, it generates a controllable adsorption force by means of electromagnetic induction, which can quickly grab or release the support frame 6.

[0057] By finely adjusting the position of the support frame 6 in the Z-axis direction, it is possible to accurately ensure that the tobacco leaves on the support frame 6 are smoothly transferred to the placement rack 4, effectively improving the accuracy and efficiency of the tobacco leaf transfer operation.

[0058] Preferably, the two ends of the pull-down rod 13 are fixedly connected to the bottom of the limiting plate 12 and the slide 5, respectively.

[0059] Example 3 The difference between this embodiment and the above embodiments is that: like Figure 1 As shown, the front end of the enclosure 2 is provided with a shading mechanism, which is used to shade the tobacco leaves in the tobacco storage area 3.

[0060] Preferably, the shading mechanism includes a take-up roller 17 and a shading net 18 wound on the take-up roller 17.

[0061] In this embodiment, a torsion spring 29 is coaxially mounted between the shaft of the take-up roller 17 and the frame 2.

[0062] In this embodiment, the elastic restoring force of the torsion spring 29 can continuously act on the take-up roller 17, thereby forming an axial tightening effect on the shade net 18, ensuring that the shade net 18 remains taut in the pulled-out state, and avoiding the shade net 18 from being loose and affecting its performance.

[0063] Preferably, the take-up roller 17 is rotatably mounted on the frame 2.

[0064] In this embodiment, a set of limiting holes 30 arranged in a ring array can be provided on the end face of the take-up roller 17 along the circumferential direction, and a limiting member 31 that can rotate around the hinge point is movably installed on the mounting base of the take-up roller 17.

[0065] The limiting member 31 has a pin fixed on one side facing the end face of the take-up roller 17, which is adapted to the size and position of the limiting hole 30.

[0066] When it is necessary to limit and lock the take-up roller 17, rotate the limiting member 31 so that the pin is inserted into the corresponding limiting hole 30. The circumferential rotation of the take-up roller 17 is limited by the insertion and cooperation between the pin and the limiting hole 30, thereby fixing the rotation angle of the take-up roller 17 and ensuring the positional stability of the shade net 18 after it is wound up / unwound.

[0067] When unlocking, the rotational freedom of the take-up roller 17 can be restored after the pin is disengaged from the limit hole 30.

[0068] Preferably, a stop bar 19 extending along the Y-axis is fixed to the free end of the shade net 18, and several pairs of equally spaced stop blocks 20 are fixed to the top of the frame 2.

[0069] In this embodiment, the stop block 20 serves as a limiting and fixing component, which can form a positioning constraint on the stop bar 19 and keep its position stable, thereby enabling the shade net 18 to accurately stop and reliably fix in the appropriate position required for use, and preventing it from undergoing unexpected displacement.

[0070] Moreover, the axial length of the stop bar 19 is greater than the axial length of the take-up roller 17.

[0071] When the shade net 18 is not in use and is wound up on the take-up roller 17, the two ends of the stop bar 19 can be pressed against the mounting seats at both ends of the take-up roller 17. The unexpected rotation of the take-up roller 17 is restricted by mechanical pressing, which prevents the shade net 18 from coming loose and ensures the stability of the winding state.

[0072] Preferably, a winding roller 21 is rotatably mounted on the top of the front end of the frame 2, and the shade net 18 passes around the side wall of the winding roller 21.

[0073] In this embodiment, the winding roller 21 serves to steer and support the shading net 18.

[0074] Example 4 The difference between this embodiment and the above embodiments is that the support frame 6 can adopt a telescopic structure.

[0075] In this embodiment, the support rods configured on the support bracket 6 are telescopic structures. The telescopic support rods are formed by the sliding assembly of the fixed rod part 32 and the sliding rod part 33, and the tops of the fixed rod part 32 and the sliding rod part 33 are kept flush to ensure the flatness of the support surface.

[0076] The top of the fixed rod 32 is provided with a telescopic groove extending along the length direction, and at least one first positioning hole is provided on both sides of the groove.

[0077] The sliding rod 33 can slide along the extension direction of the telescopic groove, and several second positioning holes are arranged on its two side walls. The size and spacing of the second positioning holes are adapted to the size and position of the first positioning holes.

[0078] Therefore, by inserting the positioning element 34 (such as a pin or screw) into the corresponding first and second positioning holes, the length of the telescopic support rod can be precisely adjusted and locked to meet the support requirements of different specifications of tobacco leaves.

[0079] The specific usage process of the transport vehicle in this utility model is as follows: S1. Harvesters operate the transport vehicle to the target field area, issue commands through the control panel 28 to start the traveling mechanism, and adjust the traveling speed of the transport vehicle to a suitable speed according to their own walking rhythm to ensure the synchronization of harvesting operations. S2. Harvesters harvest tobacco leaves on-site and directly pile the harvested tobacco leaves on the support frame 6. As the weight of the tobacco leaves on the support frame 6 continues to increase, the support frame 6 adaptively lowers its height along the Z-axis, always keeping the placement height of the tobacco leaves within the comfortable operating range of the harvesters, thus reducing the labor intensity of the harvesters. S3. When the weight of the tobacco leaves on the support frame 6 reaches the system preset threshold, the support frame 6 moves to the lowest position and its bottom is fully pressed against the limiting block 14 to form a mechanical limit. S4. After the pressure detection element 15 detects the pressure signal applied by the support frame 6 in real time, it transmits the full-load transfer signal of tobacco leaves to the control panel 28. The control panel 28 reminds the harvesters to stop placing tobacco leaves on the support frame 6 and to transfer the tobacco leaves to the placement rack 4 for temporary storage through sound and light prompts or text display. S5. Simultaneously, the control panel 28 outputs a power-on command to the electromagnetic chuck 16, causing the electromagnetic chuck 16 to generate a strong magnetic attraction force, which firmly attaches the support bracket 6 to the top of the limiting plate 12, ensuring the positional stability of the support bracket 6 during subsequent transfer. S6. The harvester triggers the drive motor 25 to start via the control panel 28. The drive motor 25 drives the slide 5 to move along the X-axis towards the placement rack 4. The support frame 6 and the placement rack 4 are staggered, which allows the support frame 6 to be accurately inserted into the gap on the placement rack 4, providing structural conditions for the transfer of tobacco leaves. S7. After the harvester observes that the support frame 6 has moved to the optimal position for transferring the tobacco leaves, he controls the drive motor 25 to run in reverse through the control panel 28 and controls the pull-down pole 13 to perform a complete extension and retraction action. S8. The pull-down pole 13 retracts first, driving the support frame 6 to move downward to a predetermined height, so that the support frame 6 is completely separated from the tobacco leaf, and the tobacco leaf is smoothly transferred to the placement rack 4 under the action of gravity. S9. During the reverse rotation of the drive motor 25, which drives the support frame 6 to move back, the telescopic rod of the pull-down pole 13 is reset and extended, so that the support frame 6 rises back to the same height as the placement frame 4, thus avoiding interference with the placement frame 4 during the retraction process. S10. As the support frame 6 continues to move back to the initial working position, the control panel 28 controls the electromagnetic chuck 16 to be de-energized. After the electromagnetic chuck 16 loses its magnetic attraction, the support frame 6 automatically rises back to the highest position under the gravity compensation of the counterweight 7, and resumes the harvesting operation preparation state. S11. Harvesters continue to harvest tobacco leaves and repeat steps S1-S10 above to achieve continuous tobacco leaf harvesting and transfer operations.

[0080] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tobacco leaf transport vehicle for harvesting tobacco leaves, comprising a transport base (1), characterized in that, Also includes: The traveling mechanism is installed at the bottom of the transport base (1); The frame (2) is fixedly installed on the top of the transport base (1) and is set in a square frame. The top of the transport base (1) and the inside of the frame (2) together form a tobacco storage area (3). The placement rack (4) is used to hold the harvested tobacco leaves and is set at the front end inside the tobacco leaf storage area (3); The slide (5) is slidably installed inside the tobacco storage area (3) along the X-axis and is driven to slide by a reciprocating drive mechanism; The support frame (6) is located inside the slide (5) and is slidably installed on the slide (5) along the Z-axis direction, and is connected to a counterweight balance lifting mechanism.

2. The tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 1, characterized in that, The lower end of the slide (5) is provided with a pull-down mechanism for pulling down the support frame (6) when it has fallen to the lowest position.

3. The tobacco leaf transport vehicle for tobacco harvesting according to claim 1, characterized in that, The front end of the enclosure (2) is provided with a shading mechanism, which is used to shade the tobacco leaves in the tobacco storage area (3).

4. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 1, characterized in that, The counterweight-balanced lifting mechanism includes a pair of counterweights (7) slidably mounted on the slide (5) along the Z-axis. A pair of slide grooves (8) extending along the Z-axis are respectively opened on the two side walls of the slide (5). A slider (9) is slidably mounted in each slide groove (8), and the slider (9) is fixedly connected to the support frame (6). A steel wire rope (10) is fixedly connected between the slider (9) and the corresponding counterweight (7). Each steel wire rope (10) passes around a set of steering components.

5. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 4, characterized in that, The steering assembly includes at least one pair of steering wheels (11), both of which are rotatably mounted on the carriage (5), and the position of each steering wheel (11) is higher than that of the slide (8) and the counterweight (7).

6. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 2, characterized in that, The pull-down mechanism includes a limiting plate (12) and a pull-down rod (13). The limiting plate (12) is located below the support frame (6) and a limiting block (14) is fixed on its top. A pressure detection element (15) and an electromagnetic chuck (16) are installed on the top of the limiting block (14). The two ends of the pull-down rod (13) are fixedly connected to the bottom of the limiting plate (12) and the slide (5) respectively.

7. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 3, characterized in that, The shielding mechanism includes a take-up roller (17) and a shade net (18) wound on the take-up roller (17). A stop bar (19) extending along the Y-axis is fixed to the free end of the shade net (18), and several pairs of equally spaced stop blocks (20) are fixed to the top of the frame (2).

8. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 7, characterized in that, A roller (21) is rotatably mounted on the top of the front end of the frame (2), and the shade net (18) passes around the side wall of the roller (21).

9. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 1, characterized in that, The reciprocating drive mechanism includes a drive pulley (22), a driven pulley (23), and a transmission belt (24) wound around the drive pulley (22) and the driven pulley (23). The drive pulley (22) and the driven pulley (23) are rotatably installed at both ends of the tobacco storage area (3). The drive pulley (22) is connected to a drive motor (25). The transmission belt (24) is fixedly connected to the carriage (5) through a connecting block (26).

10. A tobacco leaf transport vehicle for harvesting tobacco leaves according to claim 1, characterized in that, The rear end of the transport base (1) is equipped with a battery (27), and a control panel (28) is provided on the upper rear side of the frame (2).

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