Carrying device for tobacco leaf harvesting

Abstract

The utility model discloses a carrying device for harvesting tobacco leaves, and relates to the technical field of agricultural machinery, the carrying device for harvesting tobacco leaves comprises a frame, a walking mechanism and two groups of guide rollers, the frame is used for placing tobacco leaves, the walking mechanism is arranged on the frame and used for driving the frame to walk in furrows, and the two groups of guide rollers are arranged on the frame. The two sets of guide rollers are arranged on the two sides of the frame in the left-right direction respectively, the outer side walls of the guide rollers are used for being attached to the side walls of furrows, the guide rollers can rotate around the axes of the guide rollers, and the axes of the guide rollers are perpendicular to the front-back direction of the frame. The carrying device for harvesting the tobacco leaves not only can conveniently walk in a furrow with a narrow bottom end, but also cannot turn on one side, and is better in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a carrying device for tobacco leaf harvesting. Background Art

[0002] With the progress of technology, the degree of agricultural mechanization is also getting higher and higher. For example, a tobacco leaf carrying device is used in the process of tobacco leaf harvesting. The carrying device includes a frame and a traveling mechanism arranged at the bottom end of the frame. When collecting tobacco leaves, the traveling mechanism drives the frame to walk in the furrows of the tobacco field, and the harvesting personnel harvest the tobacco leaves on both sides of the furrows and place them on the frame. Since the side walls of the furrows in the tobacco field are generally slopes and the bottom end of the furrow is very narrow, the traveling mechanism needs to be correspondingly set narrower. For example, only a row of traveling wheels distributed along the front and back directions of the frame is arranged to be able to walk in the furrow. However, when the traveling mechanism is narrower, the support of the frame is unstable and it is easy to tip over. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a carrying device for tobacco leaf harvesting, which is not only convenient to walk in the narrow furrow at the bottom end, but also will not tip over and has better stability.

[0004] According to the carrying device for tobacco leaf harvesting of the embodiment of the utility model, it includes a frame, a traveling mechanism and two groups of guide rollers. The frame is used for placing tobacco leaves. The traveling mechanism is arranged on the frame to drive the frame to walk in the furrow. The two groups of guide rollers are respectively arranged on both sides of the frame in the left-right direction. The outer side wall of the guide roller is used for fitting against the side wall of the furrow. The guide roller can rotate around its own axis, and the axis of the guide roller is perpendicular to the front-back direction of the frame.

[0005] The carrying device for tobacco leaf harvesting according to the embodiment of the utility model has at least the following beneficial effects:

[0006] When collecting tobacco leaves, the traveling mechanism drives the frame to walk in the furrows of the tobacco field, and the harvesting personnel can harvest the tobacco leaves on both sides of the furrows and place them on the frame. In the utility model, the traveling mechanism can be set as a row of traveling wheels distributed along the front and back directions of the frame or a crawler extending along the front and back directions of the frame. In this way, it is convenient to walk in the relatively narrow furrow at the bottom end. During the walking process, the outer side walls of the guide rollers on both sides of the frame fit against the side walls of the furrow. Through the cooperation between the guide rollers and the side walls of the furrow, the frame can be prevented from tipping over, and the stability is better. Moreover, since the guide roller can rotate around its own axis and the axis of the guide roller is perpendicular to the front-back direction of the frame, when the frame walks, the guide roller will rotate, and the received frictional force is rolling frictional force, and the frictional resistance is smaller, thereby making the frame walk more smoothly.

[0007] According to some embodiments of the present utility model, the carrying device for tobacco leaf harvesting further includes a telescopic mechanism. The telescopic mechanism is disposed on the vehicle frame, and the guiding roller is connected to the telescopic mechanism. The telescopic mechanism is used to drive the guiding roller to move and adjust in the left-right direction of the vehicle frame.

[0008] According to some embodiments of the present utility model, an installation frame is hinged to the end of the telescopic mechanism. Both ends of the guiding roller are rotatably connected to the installation frame, and the hinge axis between the installation frame and the telescopic mechanism extends along the front-back direction of the vehicle frame.

[0009] According to some embodiments of the present utility model, the hinge position between the installation frame and the telescopic mechanism is located in the middle of the length direction of the guiding roller. Pressure sensors are respectively provided between both ends of the guiding roller and the installation frame. The two pressure sensors are respectively used to detect the pressure applied to both ends of the guiding roller by the side wall of the ridge groove. When the pressure values detected by the two pressure sensors are both greater than a preset value, the telescopic mechanism stops extending.

[0010] According to some embodiments of the present utility model, distance measuring sensors are provided on both sides of the vehicle frame in the left-right direction. The distance measuring sensors are used to detect the distance between the vehicle frame and the side wall of the ridge groove, and the telescopic mechanism adjusts the extension amount according to the distance value detected by the distance measuring sensors.

[0011] According to some embodiments of the present utility model, the traveling mechanism includes a first driving motor and at least two traveling wheels. The at least two traveling wheels are arranged along the front-back direction of the vehicle frame, and the first driving motor is connected to one of the traveling wheels.

[0012] According to some embodiments of the present utility model, the vehicle frame includes a carriage, a bogie, and a second driving motor. The bogie is rotatably mounted at the front end of the carriage around a vertical axis. One of the traveling wheels is disposed on the bogie, and in each group of guiding rollers, at least one guiding roller is disposed on the bogie. The second driving motor is disposed on the carriage and connected to the bogie to control the rotation of the bogie.

[0013] According to some embodiments of the present utility model, the traveling mechanism includes a first driving motor and a crawler belt. The crawler belt is disposed on the vehicle frame and extends along the front-back direction of the vehicle frame, and the first driving motor is connected to the crawler belt.

[0014] According to some embodiments of the present utility model, baffles are respectively arranged on both sides of the top end of the vehicle frame, a placement groove is formed between the two baffles, a pressing plate is rotatably connected to the top end of the baffle, a wrapping cloth is laid in the placement groove, adhesive tapes are arranged on both sides of the wrapping cloth, and both sides of the wrapping cloth are respectively lapped on one ends of the two pressing plates away from the baffle or adhered to one ends of the two pressing plates away from the baffle, and the two pressing plates can rotate towards each other to make the two adhesive tapes adhere to each other.

[0015] According to some embodiments of the present utility model, an elastic reset member is arranged between the pressing plate and the baffle, and the elastic reset member is used to keep the pressing plate in a vertical state.

[0016] Some additional aspects and advantages of the present utility model will be given in the following description, some advantages will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0018] Figure 1 is a schematic diagram of the overall structure of the tobacco leaf harvesting and transporting device according to the embodiment of the present utility model;

[0019] Figure 2 is a schematic diagram when the two adhesive tapes of the wrapping cloth do not adhere to each other;

[0020] Figure 3 is a schematic diagram when the two adhesive tapes of the wrapping cloth adhere to each other;

[0021] Figure 4 is a schematic diagram of the structure of the wrapping cloth;

[0022] Figure 5 is a schematic diagram when the wrapping cloth is provided with a handle;

[0023] Figure 6 is a schematic diagram of the installation of the pressure sensor.

[0024] Reference numerals in the drawings:

[0025] Vehicle frame 100; Distance measuring sensor 101; Compartment 102; Bogie 103; Baffle 104; Pressing plate 105;

[0026] Traveling mechanism 200; Traveling wheels 201;

[0027] Guide roller 300;

[0028] Telescopic mechanism 400; Mounting frame 401; Pressure sensor 402;

[0029] Packing cloth 500; Adhesive tape 501; Handle 502;

[0030] Fan 600. Detailed implementation manners

[0031] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up and down, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0033] In the description of the present utility model, "a plurality of" refers to two or more. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0034] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0035] Next, refer to Figures 1 to 6 Describe a carrying device for tobacco leaf harvesting according to an embodiment of the present utility model.

[0036] Refer to Figures 1 to 6 As shown, a carrying device for tobacco leaf harvesting according to an embodiment of the present utility model includes a frame 100, a traveling mechanism 200, and two groups of guide rollers 300.

[0037] Among them, a placement groove may be formed at the top of the frame 100 for placing tobacco leaves. An accommodation cavity may also be provided inside the frame 100, and a controller, a power module, etc. may be installed in the accommodation cavity. The controller may be electrically connected to the traveling mechanism 200 and is used to control the operation of the traveling mechanism 200. The power module provides power for the traveling mechanism 200 and the controller, etc. A fan 600 may also be provided on the frame 100, and the fan 600 may be an air curtain machine. By setting the fan 600, in hot weather, when the harvesting personnel are resting, heat dissipation can be carried out through the fan 600, reducing the fatigue of the harvesting personnel and facilitating better rest for the harvesting personnel.

[0038] The traveling mechanism 200 is arranged on the frame 100 to drive the frame 100 to travel in the furrow. Since the side walls of the furrows in the tobacco field are generally sloped and the bottom of the furrow is relatively narrow, the traveling mechanism 200 needs to be correspondingly set to be relatively narrow. For example, only one row of traveling wheels 201 distributed along the front-back direction of the frame 100, that is, the traveling direction of the frame 100, is provided to be able to travel in the furrow.

[0039] Two groups of guide rollers 300 are respectively arranged on both sides of the frame 100 in the left-right direction. Each group of guide rollers 300 may include one or more guide rollers 300. When each group of guide rollers 300 includes multiple guide rollers 300, the multiple guide rollers 300 in the same group may be arranged along the front-back direction of the frame 100. The outer side wall of the guide roller 300 is used to fit against the side wall of the furrow. The guide roller 300 can rotate around its own axis, and the axis of the guide roller 300 is perpendicular to the front-back direction of the frame 100. Specifically, when the frame 100 is traveling and the side wall of the furrow is sloped, the axis of the guide roller 300 may extend along the inclination direction of the side wall of the furrow.

[0040] According to the carrier device for tobacco leaf harvesting of the present utility model, when collecting tobacco leaves, the traveling mechanism 200 drives the frame 100 to travel in the furrows of the tobacco field, and the harvesting personnel can harvest the tobacco leaves on both sides of the furrow and place them on the frame 100. The traveling mechanism 200 may be set as one row of traveling wheels 201 distributed along the front-back direction of the frame 100 or a crawler extending along the front-back direction of the frame 100. In this way, it is convenient to travel in the furrow with a relatively narrow bottom. During the traveling process, the outer side walls of the guide rollers 300 on both sides of the frame 100 fit against the side walls of the furrow. Through the cooperation between the guide rollers 300 and the side walls of the furrow, the frame 100 can be prevented from tipping over, and the stability is better. Moreover, since the guide roller 300 can rotate around its own axis and the axis of the guide roller 300 is perpendicular to the front-back direction of the frame 100, when the frame 100 is traveling, the guide roller 300 will rotate, and the friction force received is rolling friction, and the frictional resistance is relatively small, thereby making the frame 100 travel more smoothly.

[0041] In some embodiments of the present utility model, such asFigure 1 As shown, the carrying device for tobacco leaf harvesting further includes a telescopic mechanism 400. The telescopic mechanism 400 is arranged on the vehicle frame 100, and the guiding roller 300 is connected to the telescopic mechanism 400. The telescopic mechanism 400 is used to drive the guiding roller 300 to move and adjust along the left - right direction of the vehicle frame 100. For example, the telescopic mechanism 400 can be an electric push rod, an oil cylinder, etc. The telescopic mechanism 400 can extend along the left - right direction of the vehicle frame 100 and can be telescoped along the left - right direction of the vehicle frame 100. The guiding roller 300 can be arranged at the end of the telescopic mechanism 400.

[0042] The distances between the two side walls of the ridge trenches in different tobacco fields may be different. In this embodiment, by operating the telescopic mechanism 400, the corresponding guiding roller 300 can be driven to move and adjust along the left - right direction of the vehicle frame 100. Thus, even if the distances between the two side walls of the ridge trench are different, the outer side wall of the guiding roller 300 can still be attached to the side wall of the ridge trench to prevent the vehicle frame 100 from tipping over. In addition, when the tobacco leaves are placed on one side of the vehicle frame 100, causing the vehicle frame 100 to be unevenly stressed and have a small lateral swing to one side, the vehicle frame 100 can also be adjusted to be straightened by adjusting the telescopic mechanism 400 to achieve stable walking, and the practicability is better.

[0043] It should be noted that the telescopic mechanism 400 can be electrically connected to the controller in the vehicle frame 100, and the telescopic mechanism 400 is controlled by the controller to be telescoped.

[0044] In some embodiments of the present utility model, as Figure 1 and Figure 6 shown, an installation frame 401 is hinged at the end of the telescopic mechanism 400. Both ends of the guiding roller 300 are rotatably connected to the installation frame 401. The hinge axis between the installation frame 401 and the telescopic mechanism 400 extends along the front - rear direction of the vehicle frame 100. For example, the installation frame 401 can include a connecting rod and side rods arranged at both ends of the connecting rod. The connecting rod is provided with a connecting seat, and the connecting seat is hinged to the end of the telescopic mechanism 400. Both ends of the guiding roller 300 are respectively rotatably connected to the two side rods.

[0045] The side walls of the ridge trenches in different tobacco fields may be slopes or may not be slopes, and when they are slopes, the inclination angles may be different. In this embodiment, the guiding roller 300 is hinged to the end of the telescopic mechanism 400 through the installation frame 401, and the hinge axis between the installation frame 401 and the telescopic mechanism 400 extends along the front - rear direction of the vehicle frame 100. Thus, when the telescopic mechanism 400 extends to make one end of the guiding roller 300 start to contact the side wall of the ridge trench, if the telescopic mechanism 400 continues to extend, due to the limitation of the side wall of the ridge trench, the installation frame 401 will drive the guiding roller 300 to rotate relative to the telescopic mechanism 400, so that the guiding roller 300 rotates to a direction where the inclination direction of its axis is substantially parallel to the inclination direction of the side wall of the ridge trench, thereby facilitating the outer side wall of the guiding roller 300 to be tightly attached to the side wall of the ridge trench.

[0046] That is, even if the widths of the furrows are different and the inclination angles of the side walls of the furrows are different, by operating the telescopic mechanism 400, the side wall of the guiding roller 300 can be naturally attached to the side wall of the furrow, without the need to additionally provide an angle adjusting mechanism to adjust the inclination angle of the guiding roller 300. The structure is simpler, the manufacturing is more convenient, the cost is lower, the operation is more convenient, and the practicability is better.

[0047] In some embodiments of the present invention, as Figure 1 and Figure 6 shown, the hinged position of the mounting bracket 401 and the telescopic mechanism 400 is located in the middle of the length direction of the guiding roller 300. Pressure sensors 402 are respectively provided between the two ends of the guiding roller 300 and the mounting bracket 401. The two pressure sensors 402 are respectively used to detect the pressures exerted on the two ends of the guiding roller 300 by the side walls of the furrow. For example, the mounting bracket 401 can be provided with mounting holes corresponding to the guiding roller 300. The two ends of the guiding roller 300 are rotatably mounted in the mounting holes. The pressure sensors 402 can be provided on the mounting bracket 401 and on the side away from the side wall of the furrow of the mounting hole. When the two ends of the guiding roller 300 are subjected to the pressures exerted by the side walls of the furrow, corresponding pressures will be exerted on the side away from the side wall of the furrow of the mounting hole, and the pressure sensors 402 can then sense and send signals to the controller, and the controller thus controls the telescopic mechanism 400 to perform corresponding actions. During the extension process of the telescopic mechanism 400, generally one end of the guiding roller 300 first contacts the side wall of the furrow, and the pressure received by the end of the guiding roller 300 in contact with the side wall of the furrow is relatively small. When the telescopic mechanism 400 continues to extend until the side wall of the guiding roller 300 is integrally attached to the side wall of the furrow, the pressures exerted on the two ends of the guiding roller 300 by the side walls of the furrow are approximately equal and greater than the preset value.

[0048] In this embodiment, the pressure sensors 402 can be electrically connected to the controller in the vehicle frame 100. When the telescopic mechanism 400 extends until the two pressure sensors 402 detect that the pressures exerted on the two ends of the guiding roller 300 by the side walls of the furrow are approximately equal and greater than the preset value, the pressure sensors 402 send signals to the controller, and the controller controls the telescopic mechanism 400 to stop continuing to extend. In this way, the guiding roller 300 can be kept in a state where its outer side wall is naturally attached to the side wall of the furrow, which can not only avoid the unstable support of the vehicle frame 100 due to too large a gap between the guiding roller 300 and the side wall of the furrow, but also avoid the influence on the movement of the vehicle frame 100 due to the too tight attachment between the guiding roller 300 and the side wall of the furrow, and the practicability is better.

[0049] It should be noted that there are various types of pressure sensors 402. For example, it can be a piezoresistive pressure sensor, a piezoelectric pressure sensor or other suitable pressure sensors 402.

[0050] In some embodiments of the present invention, asFigure 1 As shown in the figure, ranging sensors 101 are provided on both sides of the frame 100 in the left - right direction. The ranging sensors 101 are used to detect the distance between the frame 100 and the side wall of the ridge furrow. The ranging sensors 101 can be electrically connected to the controller within the frame 100. In addition to controlling the telescopic mechanism 400 to expand and contract by sensing the pressure received by the guiding roller 300 through the pressure sensor 402, the distance between the side wall of the ridge furrow and the ranging sensor 101 can also be detected by the ranging sensor 101. According to the distance information detected by the ranging sensor 101, the controller can control the telescopic mechanism 400 to adjust the elongation amount, so that the guiding roller 300 maintains a state where its outer wall naturally fits against the side wall of the ridge furrow. This can not only prevent the gap between the guiding roller 300 and the side wall of the ridge furrow from being too large, resulting in unstable support of the frame 100, but also prevent the guiding roller 300 from fitting too tightly against the side wall of the ridge furrow, affecting the movement of the frame 100, and has better practicability.

[0051] It should be noted that there are various types of ranging sensors 101. For example, it can be an infrared ranging sensor, an ultrasonic ranging sensor, a radar, or other suitable ranging sensors 101.

[0052] In some embodiments of the present utility model, as Figure 1 shown, the traveling mechanism 200 includes a first driving motor and at least two traveling wheels 201. The at least two traveling wheels 201 are arranged along the front - rear direction of the frame 100, and the first driving motor is connected to one of the traveling wheels 201. For example, there can be two traveling wheels 201. One of the traveling wheels 201 can be a driving wheel and can be arranged at the rear end of the frame 100, and the other traveling wheel 201 can be a driven wheel and can be arranged at the front end of the frame 100. The first driving motor is arranged on the frame 100 and can be connected to the driving wheel. Starting the first driving motor, the first driving motor can control the driving wheel to rotate, and the driving wheel can then drive the driven wheel to rotate, thereby driving the frame 100 to move. Moreover, the at least two traveling wheels 201 only form a row and are arranged along the front - rear direction of the frame 100. In this way, it can just be applicable to the ridge furrow of a tobacco field with a narrow bottom, and has better practicability.

[0053] It should be noted that in some other embodiments of the present utility model, the traveling mechanism 200 can also include a first driving motor and a crawler. The crawler is arranged on the frame 100 and extends along the front - rear direction of the frame 100. The first driving motor is connected to the crawler. Starting the first driving motor, the first driving motor can drive the crawler to move, and the crawler can then drive the frame 100 to move. Moreover, the traveling mechanism 200 only has one crawler. In this way, it can just be applicable to the ridge furrow of a tobacco field with a narrow bottom, and has better practicability.

[0054] In some embodiments of the present utility model, as Figure 1As shown in the figure, the vehicle frame 100 includes a carriage 102, a bogie 103 and a second drive motor. The bogie 103 is rotatably mounted at the front end of the carriage 102 around a vertical axis. One of the running wheels 201 is provided on the bogie 103, and at least one of the guide rollers 300 in each group of guide rollers 300 is provided on the bogie 103. The second drive motor is provided on the carriage 102 and connected to the bogie 103 to control the rotation of the bogie 103. For example, the driven wheel among the running wheels 201 can be provided on the bogie 103. When the furrows in the tobacco field are curved, the second drive motor is started, and the second drive motor controls the rotation of the bogie 103, so that the traveling direction of the vehicle frame 100 can be adjusted. Moreover, at least one of the guide rollers 300 in each group of guide rollers 300 is provided on the bogie 103. In this way, even if the front end of the vehicle frame 100 turns, the guide rollers 300 on the bogie 103 can still keep it stable.

[0055] In some embodiments of the present utility model, as Figures 1 to 5 shown, baffles 104 are respectively provided on both sides of the top end of the vehicle frame 100. A placement groove is formed between the two baffles 104. The top end of the baffle 104 is rotatably connected with a pressing plate 105. A wrapping cloth 500 is laid in the placement groove. Adhesive tapes 501 are provided on both sides of the wrapping cloth 500, and both sides of the wrapping cloth 500 are respectively laid on one end of the two pressing plates 105 away from the baffle 104 or adhered to one end of the two pressing plates 105 away from the baffle 104. The two pressing plates 105 can rotate towards each other to make the two adhesive tapes 501 adhere to each other. For example, when collecting tobacco leaves, the pressing plate 105 can be in a vertical state. The wrapping cloth 500 is laid in the placement groove between the two baffles 104, and both sides of the wrapping cloth 500 are respectively laid on the top ends of the two pressing plates 105 or adhered to the top ends of the two pressing plates 105. When the tobacco leaves are filled in the wrapping cloth 500, the two pressing plates 105 rotate towards each other to be close to a horizontal state, and the two pressing plates 105 can flatten and tidy the tobacco leaves, and the two adhesive tapes 501 can just adhere to each other, so that it is convenient for the harvesting personnel to take out all the tobacco leaves from the vehicle frame 100.

[0056] It should be noted that in order to facilitate the harvesting personnel to extract the wrapping cloth 500, handles 502 can be provided on both sides of the wrapping cloth 500.

[0057] In some embodiments of the present utility model, an elastic resetting member is provided between the pressing plate 105 and the baffle 104, and the elastic resetting member is used to keep the pressing plate 105 in a vertical state. For example, the elastic resetting member can be a torsion spring. The two ends of the torsion spring are respectively connected to the pressing plate 105 and the baffle 104. The torsion spring can keep the pressing plate 105 in a vertical state through its own elastic restoring force, that is, the surface in the thickness direction of the pressing plate 105 is in a vertical state. In this way, it is not only convenient to lay the wrapping cloth 500, but also convenient to place the tobacco leaves, and the practicability is better.

[0058] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. A carrying device for tobacco leaf harvesting, characterized in that, Comprising: A frame for placing tobacco leaves; A traveling mechanism provided on the frame for driving the frame to travel in a furrow; Two sets of guide rollers respectively provided on both sides of the frame in the left-right direction. The outer sidewall of the guide roller is used to fit against the sidewall of the furrow. The guide roller can rotate around its own axis, and the axis of the guide roller is perpendicular to the front-back direction of the frame.

2. The tobacco leaf harvesting carrier device according to claim 1, wherein, The carrier device for tobacco leaf harvesting further includes: A telescopic mechanism provided on the frame. The guide roller is connected to the telescopic mechanism, and the telescopic mechanism is used to drive the guide roller to move and adjust in the left-right direction of the frame.

3. The tobacco leaf harvesting carrier device according to claim 2, wherein, An end of the telescopic mechanism is hinged with a mounting bracket, and both ends of the guide roller are rotatably connected to the mounting bracket. The hinge axis between the mounting bracket and the telescopic mechanism extends along the front-back direction of the frame.

4. The tobacco leaf harvesting carrier device according to claim 3, characterized in that, The hinge position between the mounting bracket and the telescopic mechanism is located in the middle of the length direction of the guide roller. Pressure sensors are respectively provided between both ends of the guide roller and the mounting bracket. The two pressure sensors are respectively used to detect the pressure exerted on both ends of the guide roller by the sidewall of the furrow. When the pressure values detected by the two pressure sensors are both greater than a preset value, the telescopic mechanism stops extending.

5. The tobacco leaf harvesting carrier device according to claim 2, wherein, Distance sensors are provided on both sides of the frame in the left-right direction. The distance sensors are used to detect the distance between the frame and the sidewall of the furrow. The telescopic mechanism adjusts the extension amount according to the distance value detected by the distance sensor.

6. The tobacco leaf harvesting carrier device according to any one of claims 1 to 5, characterized in that, The traveling mechanism includes a first drive motor and at least two traveling wheels. The at least two traveling wheels are arranged in the front-back direction of the frame, and the first drive motor is connected to one of the traveling wheels.

7. The tobacco leaf harvesting and transporting device according to claim 6, characterized in that, The frame includes: A carriage; A bogie rotatably mounted at the front end of the carriage around a vertical axis. One of the traveling wheels is provided on the bogie, and in each set of guide rollers, at least one guide roller is provided on the bogie; A second drive motor provided on the carriage and connected to the bogie to control the rotation of the bogie.

8. The tobacco leaf harvesting carrier device according to any one of claims 1 to 5, characterized in that, The traveling mechanism includes a first drive motor and a crawler. The crawler is provided on the frame and extends along the front-back direction of the frame, and the first drive motor is connected to the crawler.

9. The tobacco leaf harvesting carrier device according to any one of claims 1 to 5, characterized in that, Baffles are respectively provided on both sides of the top of the frame. A placement groove is formed between the two baffles. The top ends of the baffles are rotatably connected with pressing plates. A wrapping cloth is laid in the placement groove. Adhesive tapes are provided on both sides of the wrapping cloth, and both sides of the wrapping cloth are respectively laid on one end of the two pressing plates away from the baffles or adhered to one end of the two pressing plates away from the baffles. The two pressing plates can rotate towards each other to make the two adhesive tapes adhere to each other.

10. The carrier device for tobacco leaf harvesting according to claim 9, characterized in that, An elastic reset member is provided between the pressing plate and the baffle, and the elastic reset member is used to keep the pressing plate in a vertical state.

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