Small adjustable tobacco harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a small adjustable tobacco harvester, which solves the problem that the picking distance cannot be adjusted due to the design defect of the existing tobacco picking equipment, and comprises a frame, a wheel track changing frame is arranged on one side of the frame, and the wheel track adjusting device is used for adjusting the distance between the frame and the wheel track changing frame; the harvesting device is arranged between the frame and the wheel track changing frame; the conveying belt adjusting mechanism is used for adjusting the distance between the conveying belt and the collecting box; through the cooperation of the wheel track changing frame, the wheel track adjusting device, the harvesting device, the conveying belt and the conveying belt adjusting mechanism, tobacco at different planting intervals can be harvested, and plants cannot be crushed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a small adjustable tobacco harvester. Background Art

[0002] With the development of modern science and technology, the harvesting of agricultural products has gradually changed from traditional, simple and primitive manual collection to mechanical automation and semi-automatic collection. The development of agricultural mechanization can greatly reduce farmers' working time, eliminate repetitive and single labor, effectively reduce labor intensity, and greatly improve work efficiency. In hilly areas, due to the undulating ground, small plots, and no clear requirements for tobacco planting spacing, there are many complex situations in tobacco planting spacing, 90cm, 120cm, 130cm, 140cm, and even a tobacco field has multiple row spacings. In this case, a small tobacco harvester with strong adaptability and high flexibility is needed.

[0003] Chinese patent publication number CN209609230U discloses a tobacco harvester with intelligent bionic picking hands, including a frame and a driving part, the frame includes a main frame top plate and a bottom leaf box baffle, the main frame top plate and the bottom leaf box baffle are connected through a frame frame, the driving subsystem in the driving part is installed on the bottom leaf box baffle, the main frame top plate is equipped with an engine, a tobacco collection box is installed on the main frame top plate, a main conveyor belt part of a tobacco conveyor belt is installed between the bottom leaf box baffle and the tobacco collection box, the main conveyor belt part of the tobacco conveyor belt is connected to the engine through a conveyor belt input system, bionic picking hand height adjustment rods are symmetrically placed on the left and right sides of the frame, the bionic picking hand height adjustment rods are movably connected to the frame, and a bionic picking system is arranged on each bionic picking hand height adjustment rod.

[0004] The utility model simulates the whole process of manual tobacco picking by setting up a bionic picking system, thereby completing bionic picking. However, since there are many complex situations in the planting spacing of tobacco, when the planting spacing changes from large to small, the harvester will crush the tobacco if it continues to harvest because the spacing cannot be adjusted. Therefore, it is difficult to be applied to hilly areas with complex planting spacing. Utility Model Content

[0005] Therefore, it is necessary to provide a small adjustable tobacco harvester to solve the problem that the existing tobacco picking equipment cannot adjust the picking distance due to design defects.

[0006] To achieve the above object, the inventor provides a small adjustable tobacco harvester, comprising:

[0007] Frame;

[0008] A wheelbase adjustment device, wherein a wheelbase changing frame is provided on one side of the frame, and the wheelbase adjustment device is used to adjust the distance between the frame and the wheelbase changing frame;

[0009] A harvesting device, the harvesting device is arranged between the frame and the wheelbase changing frame, the harvesting device comprises a harvesting adjustment component and a harvesting component, the harvesting adjustment component is used to adjust the height of the harvesting component, and the harvesting component is used to cut off tobacco roots and stems;

[0010] A collection box, the collection box is arranged at the rear side of the frame;

[0011] A conveyor belt, the conveyor belt is arranged on one side of the collecting box, the conveyor belt and the wheelbase changing frame are located on the same side, and the conveyor belt is used to transport the tobacco whose roots and stems are cut by the harvesting device to the collecting box;

[0012] A conveyor belt adjusting mechanism, wherein the conveyor belt adjusting mechanism is used to adjust the distance between the conveyor belt and the collecting box.

[0013] Furthermore, the wheelbase adjustment device includes a first cylinder, an adjusting wheel and an adjusting member, one end of the first cylinder is fixed to the frame, the other end of the first cylinder is fixed to the wheelbase changing frame, the adjusting wheel is arranged at the bottom of the wheelbase changing frame, one end of the adjusting member is connected to the wheelbase changing frame, the other end of the adjusting member is connected to the frame, and the length of the adjusting member changes with the extension and retraction of the first cylinder.

[0014] Furthermore, the harvesting adjustment component includes a second cylinder, a first articulated rod and a second articulated rod, the second cylinder is respectively connected to the first articulated rod and the second articulated rod on both sides, the other end of the first articulated rod is connected to the frame, the other end of the second articulated rod is connected to the wheelbase changing frame, and the driving end of the second cylinder is connected to the harvesting component.

[0015] Furthermore, the harvesting component comprises a tool holder and at least one spiral blade, and one end of each spiral blade is rotatably connected to the tool holder.

[0016] Furthermore, the collecting box is provided with an opening at one side of the conveyor belt, and an extension plate is provided at the opening.

[0017] Furthermore, the extension plate is arranged at an angle.

[0018] Furthermore, the conveyor belt adjustment mechanism includes a fixed plate, a motor, an adjustment plate and a third cylinder. The adjustment plate is arranged on one side of the fixed plate, one end of the conveyor belt is placed on the adjustment plate, the motor is arranged on the adjustment plate and is connected to the conveyor belt drive, the third cylinder is arranged on the fixed plate, and the driving end of the third cylinder is connected to the adjustment plate.

[0019] Furthermore, a fourth cylinder is provided on one side of the conveyor belt, the fourth cylinder is fixed in the collecting box, and a driving end of the fourth cylinder is connected to the conveyor belt.

[0020] Different from the prior art, the above technical solution has the following advantages:

[0021] 1. The utility model can harvest tobacco with different planting distances without crushing the plants through the cooperation of the wheelbase changing frame, the wheelbase adjusting device, the harvesting device, the conveyor belt and the conveyor belt adjusting mechanism.

[0022] 2. The utility model adopts spiral blades for harvesting, which can greatly reduce the damage of tobacco leaves, thereby improving the harvest rate of tobacco leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of this embodiment;

[0024] Figure 2 This is a schematic diagram of the rear structure of this embodiment;

[0025] Figure 3 This is a schematic diagram of the top view of the structure of this embodiment;

[0026] Figure 4 This is a schematic diagram of the structure of the harvesting device in this embodiment;

[0027] Figure 5 This is a schematic diagram of the structure of the harvesting device of this embodiment;

[0028] Figure 6 Schematic diagram of the structure of the conveyor belt adjustment mechanism of this embodiment.

[0029] Description of reference numerals:

[0030] This embodiment provides a small adjustable tobacco harvester, comprising:

[0031] Vehicle frame 1; wheelbase changing frame 11;

[0032] Wheelbase adjustment device 2; first cylinder 21; adjusting wheel 22; adjusting member 23; adjusting rod 24; adjusting rail 25;

[0033] Harvesting device 3;

[0034] Harvest adjustment component 4; second cylinder 41; first hinged rod 42; second hinged rod 43;

[0035] Harvesting component 5; knife holder 51; spiral blade 52;

[0036] Collection box 6; opening 61; extension plate 62; baffle 63;

[0037] Conveyor belt 7;

[0038] Conveyor belt adjustment mechanism 8; fixed plate 81; motor 82; adjustment plate 83; third cylinder 84; fourth cylinder 85. DETAILED DESCRIPTION

[0039] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0041] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0042] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0043] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0044] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0045] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0046] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] See also Figures 1 to 6 As shown, this embodiment provides a small adjustable tobacco harvester, comprising:

[0049] A frame 1; a wheelbase adjustment device 2, wherein a wheelbase changing frame 11 is provided on one side of the frame 1, and the wheelbase adjustment device 2 is used to adjust the distance between the frame 1 and the wheelbase changing frame 11; a harvesting device 3, wherein the harvesting device 3 is arranged between the frame 1 and the wheelbase changing frame 11, and the harvesting device 3 comprises a harvesting adjustment component 4 and a harvesting component 5, wherein the harvesting adjustment component 4 is used to adjust the height of the harvesting component 5, and the harvesting component 5 is used to cut off tobacco rhizomes; a collecting box 6, wherein the collecting box 6 is arranged on the rear side of the frame 1; a conveyor belt 7, wherein the conveyor belt 7 is arranged on one side of the collecting box 6, and the conveyor belt 7 and the wheelbase changing frame 11 are located on the same side, and the conveyor belt 7 is used to transport the tobacco whose rhizomes are cut off by the harvesting device 3 to the collecting box 6; a conveyor belt adjustment mechanism 8, wherein the conveyor belt adjustment mechanism 8 is used to adjust the distance between the conveyor belt 7 and the collecting box 6;

[0050] The wheelbase adjustment device 2 includes a first cylinder 21, an adjusting wheel 22 and an adjusting member 23. One end of the first cylinder 21 is fixed to the vehicle frame 1, and the other end of the first cylinder 21 is fixed to the wheelbase changing frame 11. The adjusting wheel 22 is arranged at the bottom of the wheelbase changing frame 11. One end of the adjusting member 23 is connected to the wheelbase changing frame 11, and the other end of the adjusting member 23 is connected to the vehicle frame 1. The length of the adjusting member 23 changes with the extension and retraction of the first cylinder 21.

[0051] When the planting interval of tobacco plants changes, the first cylinder 21 is used to drive the wheelbase changing frame 11 to move, so as to prevent the adjusting wheel 22 from crushing the plants. To avoid the inevitable friction of ordinary tires when the first cylinder 21 is extended and retracted to drive the wheelbase changing frame 11 to move, the adjusting wheel 22 is a universal wheel, which can rotate 360 ​​degrees compared to ordinary tires and can be purchased on the market, and will not be described in detail here.

[0052] In this embodiment, the number of the adjusting members 23 is two, in the form of an adjusting rod 24 and an adjusting rail 25, the adjusting rail 25 is fixed to the frame 1, one end of the adjusting rod 24 is connected to the wheelbase changing frame 11, and the other end of the adjusting rod 24 is inserted into the adjusting rail 25, and as the first cylinder 21 drives the wheelbase changing frame 11 to move, the adjusting rod 24 slides in the adjusting rail 25. In other preferred embodiments, the number of the adjusting members 23 can also be other, and it can be adjusted according to the actual equipment specifications. The purpose of setting the adjusting member 23 is to share the shear force in the traveling direction of the first cylinder 21, and the adjusting member 23 can also be replaced by a cylinder;

[0053] The harvesting adjustment component 4 includes a second cylinder 41, a first hinged rod 42 and a second hinged rod 43. The first hinged rod 42 and the second hinged rod 43 are connected to the two sides of the second cylinder 41 respectively. The other end of the first hinged rod 42 is connected to the frame 1, and the other end of the second hinged rod 43 is connected to the wheelbase changing frame 11. The driving end of the second cylinder 41 is connected to the harvesting component 5. The second cylinder 41 is connected to the first hinged rod 42 and the second hinged rod 43 in an articulated manner. The first hinged rod 42 is connected to the frame 1 in an articulated manner, and the second hinged rod 43 is connected to the wheelbase changing frame 11 in an articulated manner. When the distance between the wheelbase changing frame 11 and the frame 1 changes, the first hinged rod 42 and the second hinged rod 43 can automatically adjust the span, and cooperate with the extension and retraction of the second cylinder 41 to maintain or adjust the height of the harvesting component 5.

[0054] The harvesting component 5 includes a knife frame 51 and at least one spiral blade 52. One end of each spiral blade 52 is rotatably connected to the knife frame 51. The rotation directions of adjacent spiral blades 52 are opposite. The spiral blades 52 are made of flexible materials. The spiral blades 52 are twisted along the center line at a certain angle. When working, the spiral blades 52 rotate to form a beating effect to cut off the tobacco roots on the tobacco plants.

[0055] Each of the spiral blades 52 is driven to rotate by an external driving device (not shown in the figure), which can be purchased from the market. The external driving device can be fixed on the tool holder. It is a conventional technical means and will not be described in detail here.

[0056] In this embodiment, the number of the spiral blades 52 is two. When the tobacco planting spacing is small, that is, when the spacing between the frame 1 and the wheelbase changing frame 11 can accommodate multiple plants, the number of the spiral blades 52 is adjusted to a corresponding number to facilitate faster picking. This can be achieved by simply replacing the blade holder 51, and the applicability is extremely high.

[0057] The collecting box 6 is provided with an opening 61 on one side of the conveyor belt, and an extension plate 62 is provided at the opening 61; one side of the extension plate 62 is connected to the collecting box 6, and the other side of the extension plate 62 extends outward and is provided with a baffle 63 integrally formed with the collecting box 6 at the edge to prevent tobacco from falling;

[0058] In this embodiment, the extension plate 62 is horizontally arranged to facilitate connection with the conveyor belt 7. In other preferred embodiments, the extension plate 62 is inclined and its height is lower on the side close to the collecting box 6, so that the tobacco transported by the conveyor belt 7 will not accumulate on the extension plate 62.

[0059] The conveyor belt adjustment mechanism 8 includes a fixed plate 81, a motor 82, an adjustment plate 83 and a third cylinder 84. The adjustment plate 83 is arranged on one side of the fixed plate 81, one end of the conveyor belt 7 is placed on the adjustment plate 83, the motor 82 is arranged on the adjustment plate 83 and is connected to the conveyor belt 7 by driving, and the third cylinder 84 is arranged on the fixed plate 81, and the driving end of the third cylinder 84 is connected to the adjustment plate 83; in order to ensure the connection strength between the adjustment pen and the fixed plate 81 and to share the force of the connection point of the third cylinder 84, the adjustment plate 83 and the fixed plate 81 are also reinforced in the form of an adjustment rod and an adjustment rail, which is consistent with the principle of the wheelbase adjustment device 2 and will not be repeated here;

[0060] A fourth cylinder 85 is provided on one side of the conveyor belt 7. The fourth cylinder 85 is fixed in the collecting box 6. The driving end of the fourth cylinder 85 is connected to the conveyor belt 7. The setting of the fourth cylinder 85 facilitates stabilizing the conveyor belt 7 during operation and adjustment.

[0061] How it works:

[0062] When the device is in use, when the planting spacing of tobacco plants changes, the first cylinder 21 drives the wheelbase changing frame 11 to move, and adjusts the interval between the frame 1 and the wheelbase changing frame 11. Under the action of the first hinge rod 42 and the second hinge rod 43, the second cylinder 41 and the harvesting component 5 connected to the second cylinder 41 perform self-height adjustment, and then the second cylinder 51 is extended and retracted to adjust the harvesting component 5 to a suitable height. While the first cylinder 21 is driven, the third cylinder 84 and the fourth cylinder 85 are driven synchronously to drive the conveyor belt 7 to move the same distance, thereby realizing the harvesting of tobacco with different planting spacings.

[0063] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A small adjustable tobacco harvester, characterized in that: include: Frame; A wheelbase adjustment device, wherein a wheelbase changing frame is provided on one side of the frame, and the wheelbase adjustment device is used to adjust the distance between the frame and the wheelbase changing frame; A harvesting device, the harvesting device is arranged between the frame and the wheelbase changing frame, the harvesting device comprises a harvesting adjustment component and a harvesting component, the harvesting adjustment component is used to adjust the height of the harvesting component, and the harvesting component is used to cut off tobacco roots and stems; A collection box, the collection box is arranged at the rear side of the frame; A conveyor belt, the conveyor belt is arranged on one side of the collecting box, the conveyor belt and the wheelbase changing frame are located on the same side, and the conveyor belt is used to transport the tobacco whose roots and stems are cut by the harvesting device to the collecting box; A conveyor belt adjusting mechanism, wherein the conveyor belt adjusting mechanism is used to adjust the distance between the conveyor belt and the collecting box.

2. A small adjustable tobacco harvester according to claim 1, characterized in that: The wheelbase adjustment device includes a first cylinder, an adjusting wheel and an adjusting member, one end of the first cylinder is fixed to the frame, the other end of the first cylinder is fixed to the wheelbase changing frame, the adjusting wheel is arranged at the bottom of the wheelbase changing frame, one end of the adjusting member is connected to the wheelbase changing frame, the other end of the adjusting member is connected to the frame, and the length of the adjusting member changes with the extension and retraction of the first cylinder.

3. A small adjustable tobacco harvester according to claim 1, characterized in that: The harvesting adjustment component includes a second cylinder, a first articulated rod and a second articulated rod. The second cylinder is respectively connected to the first articulated rod and the second articulated rod on both sides. The other end of the first articulated rod is connected to the frame. The other end of the second articulated rod is connected to the wheelbase changing frame. The driving end of the second cylinder is connected to the harvesting component.

4. A small adjustable tobacco harvester according to claim 1, characterized in that: The harvesting component comprises a knife frame and at least one spiral blade, and one end of each spiral blade is rotatably connected to the knife frame.

5. The small adjustable tobacco harvester according to claim 1, characterized in that: The collecting box is provided with an opening at one side of the conveyor belt, and an extension plate is provided at the opening.

6. A small adjustable tobacco harvester according to claim 5, characterized in that: The extension plate is arranged obliquely.

7. The small adjustable tobacco harvester according to claim 1, characterized in that: The conveyor belt adjustment mechanism includes a fixed plate, a motor, an adjustment plate and a third cylinder. The adjustment plate is arranged on one side of the fixed plate. One end of the conveyor belt is placed on the adjustment plate. The motor is arranged on the adjustment plate and is connected to the conveyor belt drive. The third cylinder is arranged on the fixed plate, and the driving end of the third cylinder is connected to the adjustment plate.

8. The small adjustable tobacco harvester according to claim 1, characterized in that: A fourth cylinder is provided on one side of the conveyor belt, the fourth cylinder is fixed in the collecting box, and a driving end of the fourth cylinder is connected to the conveyor belt.

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