Asparagus lettuce harvesting and leaf planing device

Abstract

The utility model relates to an asparagus lettuce harvesting and leaf planing device, and belongs to the technical field of agricultural machinery. The device comprises a main body frame, a cutting part, a conveying part, a leaf planing part, a collecting part, a moving part and a controller. The cutting component cuts the asparagus lettuce, in the conveying process of the conveying component, the leaf planing component planes leaves of the cut asparagus lettuce, the asparagus lettuce after leaf planing is collected to the collecting component, the device moves through the moving component, the controller provides electric energy, and the driving device executes various operations. Compared with manual harvesting, the cutting mode adopted by the asparagus lettuce harvester is more standard in cut opening, higher in harvesting efficiency, high in blade utilization rate, simple in replacement mode and suitable for large-area asparagus lettuce harvesting, meanwhile, the collecting component is further provided with the lifting storage mechanism and the pushing mechanism, the lifting storage mechanism stores the vacant collecting frame, and the pushing mechanism is convenient to push. The pushing mechanism pushes the collecting frame to collect or pushes the fully-loaded collecting frame to the ground, so that the whole-process intervention of asparagus lettuce harvesting is realized, and the automation level is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a lettuce harvesting and leaf-shaving device. Background Art

[0002] Field harvesting of lettuce is a labor-intensive industry, with a very high proportion of labor costs, and a short harvesting window for lettuce. Lettuce that misses the window is of extremely poor quality and has no market value. The current problems faced by manual harvesting of lettuce are: low harvesting efficiency, high labor and management costs, and uneven quality of harvested lettuce, which is difficult to guarantee. Therefore, there is a large market demand for agricultural machinery in the field of lettuce harvesting, and it is necessary to provide an agricultural machinery equipment for lettuce harvesting. Utility Model Content

[0003] The utility model aims to provide a lettuce harvesting and leaf-shaving device to solve the problems of low efficiency, uneven quality and high cost of manual lettuce harvesting in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A lettuce harvesting and leaf-shaving device comprises a main frame, a cutting component, a conveying component, a leaf-shaving component, a collecting component, a moving component and a controller;

[0006] The main frame is provided with a bottom frame body, and columns are fixed at the four corners of the bottom frame body. The left and right sides of the bottom frame body are provided with shell side panels, and the shell side panels are fixedly connected to the columns;

[0007] The cutting component is assembled at the front end of the main frame, and a straightening guide rod is assembled between the cutting component and the main frame;

[0008] The conveying component is assembled on the top of the main frame, and the inclination angle of the conveying component is adjustable;

[0009] The leaf planing component and the collecting component are assembled inside the main frame, the leaf planing component is assembled close to the cutting component, and the collecting component is detachably assembled;

[0010] The moving part is assembled at the bottom of the main frame, and the moving part and the main frame are detachably assembled;

[0011] The controller is assembled inside the main frame, and is provided with a driving power source and a controller, and the controller is electrically connected to the moving part, the cutting part, the conveying part, the leaf shaving part and the collecting part.

[0012] Furthermore, the cutting component includes a mounting seat, a blade motor and a disc-shaped blade, the mounting seat is assembled at the front end of the main frame, the blade motor is assembled on the mounting seat, the disc-shaped blade is assembled on the blade motor shaft, the cutting components are assembled in pairs, and the disc-shaped blades of the two cutting components are staggered up and down.

[0013] Furthermore, the conveying component is provided with a conveyor belt main beam, a mounting column is provided at the bottom of the conveyor belt main beam, the mounting column is hinged to the top of the column of the main frame, the rear end of the conveyor belt main beam is provided with a mounting end portion inclined outward, the front end of the conveyor belt main beam and the rear end of the mounting end portion are both provided with a tensioning pulley, the tensioning pulley located at the rear end of the mounting end portion is equipped with a driving motor, the upper and lower end surfaces of the conveyor belt main beam are both provided with a plurality of mounting grooves, the side of the conveyor belt main beam is provided with a side tensioning wheel bracket, one end of the side tensioning wheel bracket is mounted on the mounting The cam is provided with a plurality of spring bases, each of which is in the same number as the mounting groove, and a spring is provided between the spring base and the side tensioning wheel bracket. A conveyor belt is provided on the periphery of the conveyor belt main beam, and the conveyor belt is sequentially mounted on the tensioning wheel and the driven wheel. The conveying components are respectively mounted in pairs on the top of the left and right sides of the main frame, and the two conveyor belts constitute a conveying channel; the front and rear ends of the conveying channel constituted by the two conveyor belts are both open structures.

[0014] Furthermore, the leaf planing component includes a motion circulation mechanism and a leaf planing pliers, the motion circulation mechanism is mounted on the inner side of the outer shell side plate of the main frame, the motion circulation mechanism is provided with a sprocket fixing plate, one side of the sprocket fixing plate is provided with a sprocket group, the sprocket group has no less than 3 sprockets, wherein the 3 sprockets constitute the vertices of an equilateral triangle, and the other sprockets are evenly distributed on the sides of the equilateral triangle, and the sprocket assembly is equipped with a chain; the leaf planing pliers connecting end is mounted on the chain, the leaf planing pliers clamping end is located directly below the horizontal axis of the conveying component, a push rod is provided in the middle of the leaf planing pliers, leaf planing pliers heads are hinged on both sides of the leaf planing pliers, a reset spring is provided between the push rod and the leaf planing pliers, connecting rods are hinged on both sides of the push rod, and the other end of the connecting rod is hinged to the leaf planing pliers head;

[0015] Preferably, an installation interlayer is provided between the sprocket fixing plate and the housing side plate, the projection of the chain on the sprocket fixing plate is a through groove, a double equilateral triangle clamping groove is provided in the installation interlayer, a clamping column is mounted on the clamping groove, the clamping column is a "human" shaped structure, the top of the clamping column passes through the sprocket fixing plate and the connecting end of the leaf planer is symmetrically arranged on both sides of the same chain link, and the double equilateral triangle clamping groove is always clamped with the column leg of the clamping column; the number of the clamping column and the leaf planer is at least one pair;

[0016] Preferably, the sprocket assembly is provided with a driving unit, and the driving unit is used to drive the motion circulation mechanism to actively rotate.

[0017] Furthermore, the collecting component is assembled on the rear side of the bottom frame, the collecting component is provided with a support frame, the support angle of the support frame is adjustable, the collecting component is also provided with a collecting frame, and the collecting frame is assembled on the supporting frame;

[0018] Preferably, the collecting component is further provided with a frame storage rack and a pushing mechanism, the frame storage rack is fixed at the rear end of the main frame, the frame storage rack is symmetrically provided with lifting and storing mechanisms on both sides, the pushing mechanism is arranged at the bottom of the frame storage rack, and the pushing mechanism is used to push the collecting frame to the upper side of the supporting frame and push the collecting frame to fall to the ground;

[0019] The lifting and storing mechanism is a lifting chain mechanism, which includes a driving sprocket structure, a driven sprocket structure and a lifting chain. A support plate is provided on the chain links of the lifting chain. There is at least one single-sided lifting chain mechanism, and all lifting chain mechanisms rotate synchronously. The pushing mechanism is a conveying roller mechanism.

[0020] Furthermore, the moving component includes a bridge frame and a traveling mechanism, and the traveling mechanism may be two independently driven front wheels and two universal rear wheels; the traveling mechanism may also be a crawler chain.

[0021] Furthermore, a plurality of top beams are installed on the top of the device, and the top beams are used as handrails and roll cages for lifting the device to prevent internal components of the device from being collided when the device topples over.

[0022] The utility model adopts the above technical solution, which has the following beneficial effects:

[0023] The cutting method adopted by the utility model has a more standardized incision and a higher harvesting efficiency compared with manual harvesting. The utility model arranges two disc-shaped blades that are staggered up and down, and the disc-shaped blades are driven by a blade motor to rotate toward the inside of the device to cut the lettuce. During the lettuce cutting process, each part of the outer arc blade surface of the disc-shaped blade can contact the lettuce, the blade utilization rate is high, the replacement method is simple, and it is suitable for harvesting lettuce over a large area. At the same time, the method of rotating toward the inside of the device can drive the cut lettuce to tilt to one side of the device, and the straightening guide rod assembled between the cutting component and the main frame can cooperate with the cutting component to push the harvested lettuce to the conveying component, thereby ensuring the smooth connection between the lettuce cutting and the lettuce conveying work.

[0024] The conveying component adopted by the utility model forms a conveying channel through two conveyor belts respectively assembled on the top of the left and right sides of the main frame, so as to convey the cut lettuce. The conveyor belt type structure can operate non-stop and has high conveying efficiency. At the same time, the conveying component of the utility model can cooperate with the leaf planing component to operate. During the conveying process, the lettuce contacts the leaf planing clamp of the leaf planing component. At this time, the leaf planing clamp is in a normally open state. After the push rod is pressed by the lettuce, the leaf planing clamp head is pulled to close. The lettuce is pulled by the conveying component to move obliquely upward, and the leaf planing clamp of the leaf planing component moves obliquely downward. The opposite movement state causes the leaf planing clamp to plan the lettuce leaves. The leaf planing method of this mechanism is similar to manual leaf planing, but has higher efficiency and less damage to the lettuce.

[0025] The collecting component adopted by the utility model can support the collecting frame opening to tilt toward the conveying component by the supporting frame, so that the lettuce dropped from the tail of the conveying component has a larger contact area with the collecting frame, avoiding the lettuce from colliding and being damaged. At the same time, the collecting component is also provided with a lifting and storing mechanism and a pushing mechanism. The lifting and storing mechanism can store a plurality of empty collecting frames. The lifting and storing mechanism puts the empty collecting frame on the upper part of the pushing mechanism, and the pushing mechanism pushes the collecting frame to the supporting frame, or unloads the fully loaded collecting frame from the supporting frame and pushes it to the ground, thereby realizing the full process intervention of lettuce harvesting and improving the level of automation. The utility model is also provided with a replaceable wheeled walking mechanism and a crawler chain walking mechanism, which is suitable for different terrains. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 This is a schematic diagram of a device in accordance with Embodiment 1 of the present utility model;

[0028] Figure 2 This is a partial structural front view of the device of Embodiment 1 of the utility model;

[0029] Figure 3 This is a schematic top view of a device in Embodiment 1 of the utility model;

[0030] Figure 4 This is a front plan view of the device of Embodiment 1 of the utility model;

[0031] Figure 5 This is a schematic diagram of the blade planing component of the utility model;

[0032] Figure 6 It is a partial structural schematic diagram of the blade planing component of the utility model;

[0033] Figure 7 This is a schematic diagram of the leaf planing mechanism of the leaf planing component of the utility model;

[0034] Figure 8 This is a partial structural cross-sectional view of the blade planing component of the utility model;

[0035] Fig. 9 This is a schematic diagram of the right side of the device of Embodiment 2 of the present utility model;

[0036] Fig.10 This is a schematic diagram of the left side of the device of Embodiment 2 of the present utility model;

[0037] Fig.11 This is a partial structural front view of the device of Embodiment 2 of the utility model;

[0038] Fig.12 This is a schematic diagram of the moving parts of the second embodiment of the utility model.

[0039] In the figure: 1-main frame; 11-bottom frame; 12-column; 13-side plate of housing; 14-righting guide rod; 2-cutting part; 21-mounting seat; 22-blade motor; 23-disc blade; 3-conveying part; 31-transfer belt main beam; 32-mounting column; 33-mounting end; 34-tensioning pulley; 35-driving motor; 36-mounting groove; 37-side tensioning wheel bracket; 371-driven wheel; 38-spring base; 381-spring; 39-conveying belt; 391-conveying channel; 4-leaf planing part; 41-circulation mechanism; 411-sprocket fixing plate; 412-sprocket group; 413-chain ;42-leaf planing pliers;421-leaf planing pliers connecting end;422-leaf planing pliers clamping end;423-leaf planing pliers head;424-push rod;425-reset spring;426-connecting rod;43-installation interlayer;431-card slot;432-card column;5-collection component;51-support frame;52-collection frame;53-frame storage frame;53A-lifting storage mechanism;531-driving sprocket structure;532-driven sprocket structure;533-lifting chain;534-support plate;54-pushing mechanism;6-moving component;61-bridge frame;62-travel mechanism;621-front wheel;622-universal rear wheel;7-top beam. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0041] In the following description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "assembly" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the following description of the present invention, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. Embodiment 1:

[0043] See also Figure 1 and Figure 2 A lettuce harvesting and leaf-shaving device comprises a main frame 1, a cutting component 2, a conveying component 3, a leaf-shaving component 4, a collecting component 5, a moving component 6 and a controller; the main frame 1 is provided with a bottom frame 11, and columns 12 are fixed at the four corners of the bottom frame 11, and shell side panels 13 are provided on the left and right sides of the bottom frame 11, and the shell side panels 13 are fixedly connected to the columns 12; the cutting component 2 is assembled at the front end of the main frame 1, and a straightening guide rod 14 is assembled between the cutting component 2 and the main frame 1; the conveying component 3 is assembled at the main frame At the top of the frame 1, the inclination angle of the conveying component 3 is adjustable; the planing component 4 and the collecting component 5 are assembled inside the main frame 1, the planing component 4 is assembled close to the side of the cutting component 2, and the collecting component 5 is detachably assembled; the moving component 6 is assembled at the bottom of the main frame 1, and the moving component 6 and the main frame 1 are detachably assembled; the controller is assembled inside the main frame 1, and the controller is provided with a driving power supply and a controller, and the driving power supply and the controller are electrically connected to the cutting component 2, the conveying component 3, the planing component 4, the collecting component 5 and the moving component 6.

[0044] See also Figure 1-3 The cutting component 2 includes a mounting seat 21, a blade motor 22 and a disc-shaped blade 23. The mounting seat 21 is assembled at the front end of the main frame 1, the blade motor 22 is assembled on the mounting seat 21, and the disc-shaped blade 23 is assembled on the shaft of the blade motor 22. The cutting components 2 are assembled in pairs, and the disc-shaped blades 23 of the two cutting components 2 are placed in an overlapping manner with each other in an upper and lower offset manner.

[0045] The cutting component 2 is the main working component of the device, and its performance directly affects the effect of lettuce harvesting. In order to meet the design requirements, the selection of cutting method for the cutting component 2 is particularly important; the cutting tool needs to meet the following basic properties: hardness, the cutting tool needs to have sufficient hardness to ensure the cutting effect and reduce the resistance during the cutting process; toughness, appropriate elasticity can ensure that during the cutting process, the tool can adapt to different material properties and structures, ensure the smoothness of cutting and ensure that the tool will not break; wear resistance, long-term operation requires the tool to have excellent wear resistance to reduce the frequency of replacement and maintenance; corrosion resistance, humidity, pH and other factors in the agricultural environment put forward requirements for the corrosion resistance of the tool to ensure stable operation in various environments.

[0046] In addition to the above basic characteristics, the cutting tool also needs to meet the requirements of mechanical structure parameters to achieve the best cutting effect. These parameters include the shape, size, angle, etc. of the tool, which will affect the resistance, cut uniformity and cross-section smoothness during the cutting process.

[0047] The blade of reciprocating cutting moves back and forth within a certain range, with high cutting efficiency, but the structure is relatively complex; disc rotary cutting is to cut by the disc driving the blade to rotate, the structure is relatively simple, but the cutting efficiency is slightly lower; circular cutting is a relatively new method, which achieves efficient and accurate cutting through cyclical cutting action.

[0048] See also Figure 3 Considering the working environment of the device and the requirements of agricultural machinery and equipment for economic cost and operation mode, it is determined that the use of disc blades 23 for cutting can meet the cutting requirements, and the structural design is simple and reliable. A pair of disc blades 23 with serrations are selected for relative rotation cutting. During the experiment, the arrangement of the disc blades 23 is optimized to overlap the upper and lower dislocation parts, and the overlapping diameter is 2~4cm. If the overlapping part is too small, it is easy to have gaps or upper and lower dislocations with the distortion of the bracket under the harsh working conditions in the field, which will cause the cutting of the nest bamboo shoots to be uneven, or even the phenomenon of continuous cutting; and if the overlapping part is too large, although there will be no problem of upper and lower dislocation, it will cause the cutting force to be reduced, which may also cause the cross section of the nest bamboo shoots to be uneven, or even the phenomenon of continuous cutting. Therefore, the overlapping diameter is determined to be 2~4cm to ensure that the cutting performance of the disc blade 23 reaches the best state.

[0049] During the bamboo shoot harvesting process, the disc surface of the disc-shaped blade 23 is kept at a nearly vertical angle to cut the bamboo shoots to ensure that the contact area between the blade and the bamboo shoots is maximized, thereby achieving the best cutting effect.

[0050] See also Figure 1-4The conveying component 3 is provided with a conveyor belt main beam 31, a mounting column 32 is provided at the bottom of the conveyor belt main beam 31, the mounting column 32 is hinged to the top of the column 12 of the main frame 1, and the rear end of the conveyor belt main beam 31 is provided with a mounting end 33 inclined outward. The front end of the conveyor belt main beam 31 and the rear end of the mounting end 33 are both provided with a tensioning pulley 34, and the tensioning pulley 34 at the rear end of the mounting end 33 is equipped with a driving motor 35. The upper and lower end surfaces of the conveyor belt main beam 31 are both provided with a plurality of mounting grooves 36. The side of the conveyor belt main beam 31 is provided with a side tensioning wheel bracket 37, and one end of the side tensioning wheel bracket 37 is assembled in the mounting groove 36, a driven wheel 371 is installed at the other end of the side tensioning wheel bracket 37, and the conveyor belt main beam 31 on the same side of the side tensioning wheel bracket 37 is provided with a spring base 38 equal to the number of the mounting grooves 36, and a spring 381 is installed between the spring base 38 and the side tensioning wheel bracket 37. A conveyor belt 39 is provided on the periphery of the conveyor belt main beam 31, and the conveyor belt 39 is sequentially installed on the tensioning wheel 34 and the driven wheel 371, and the conveying components 3 are respectively installed in pairs on the top of the left and right sides of the main frame 1, and the two conveyor belts 39 constitute a conveying channel 391, and the front and rear ends of the conveying channel 391 are both open structures.

[0051] The bamboo shoots are slender in shape, and the stems and leaves of fresh bamboo shoots are crisp and tender. Therefore, they must not be transported by using hard mechanisms forcibly clamping or dragging. In order to reduce damage to the bamboo shoots during transportation, the utility model uses two conveyor belts 39 for clamping. At the same time, the rear sides of the two conveyor belts 39 are provided with side tensioning wheel brackets 37, driven wheels 371, spring bases 38 and springs 381. The elastic force enables the conveyor belts 39 to better adapt to the shape and size of the bamboo shoots, avoiding the bamboo shoots from tilting or sliding during transportation. At the same time, the friction of the conveyor belts 39 is increased to make the bamboo shoots more stable during transportation.

[0052] According to actual production requirements, in order to avoid blockage during transportation, the conveying speed of the conveyor belt 39 needs to be slightly greater than the forward speed of the device, and the conveying speed cannot be too fast, which can easily cause damage to the bamboo shoots during transportation; according to the overall design requirements and the actual needs of field operations, the conveying speed needs to be adjustable within the range of 0.1~0.8m / s, and the appropriate conveying speed should be selected according to the harvesting speed during actual operation. According to the preliminary research of the research team, the diameter of the bamboo shoots is concentrated in 4.0~4.5cm. Considering the possible damage during transportation, two conveyor belts 39 are designed to form a transmission channel 391 with a width of 3cm. The spring pressure clamping on both sides ensures the friction required for the transportation of lettuce, while protecting the lettuce stems from damage.

[0053] According to investigation, mature bamboo shoots are generally about 45 cm tall, and are thin at the top and thick at the bottom, with the center of gravity positioned low. To prevent the bamboo shoots from falling over during transportation, the clamping part of the conveyor belt 39 should be above the center of gravity of the bamboo shoots. The front end of the conveyor belt 39 is designed to be 30 cm above the ground. The conveyor belt 39 is supported on both sides by side tensioning wheel brackets 37 and driven wheels 371. A trapezoidal protrusion is provided on the conveyor belt 39 to increase the friction between the lettuce and the conveyor belt 39.

[0054] In combination with the device's overall dimensions, terrain conditions and lettuce growth conditions, on the basis of the front end of the conveyor belt 39 being 30 cm above the ground, in order to improve the universality of the device, the inclination angle of the conveying component 3 can be adjusted by adjusting the hinge angle of the mounting column 32 and the main column 12, so that the front end of the conveyor belt 39 is greater than or less than 30 cm above the ground.

[0055] See also Figure 2 , Figure 5-7 The leaf planing component 4 includes a motion circulation mechanism 41 and a leaf planing clamp 42. The motion circulation mechanism 41 is mounted on the inner side of the shell side plate 13 of the main frame 1. The motion circulation mechanism 41 is provided with a sprocket fixing plate 411. A sprocket group 412 is mounted on one side of the sprocket fixing plate 411. The sprocket group 412 has no less than 3 sprockets, wherein the 3 sprockets constitute the vertices of an equilateral triangle, and the other sprockets are evenly distributed on the sides of the equilateral triangle. The sprocket group 412 is equipped with a chain 4 13; the planer pliers connecting end 421 of the planer pliers 42 is assembled on the chain 413, the planer pliers clamping end 422 is located directly below the horizontal axis of the conveying component 3, a push rod 424 is provided in the middle of the planer pliers 42, planer pliers heads 423 are hinged on both sides of the planer pliers clamping end 422, a return spring 425 is provided between the push rod 424 and the planer pliers clamping end 422, connecting rods 426 are hinged on both sides of the push rod 424, and the other end of the connecting rod 426 is hinged to the planer pliers head 423.

[0056] The leaf planer 42 has no active power source. The conveyor component drives the lettuce to move diagonally upward during the conveying process. At this time, the lettuce stem will provide a backward force to push the leaf planer to move. Since the rotation resistance of the chain 413 assembled on the sprocket group 412 is greater than the elastic force of the reset spring 425 of the leaf planer 42, the reset spring 425 is compressed, thereby linking the push rod 424 to close the jaws, and the leaf planer head 423 is closed under the pull of the connecting rod 426. At the same time, the thrust of the conveying component 3 is transmitted to the leaf planer connection end 421, driving the motion circulation mechanism 41 to move, so that the leaf planer 42 moves downward along the hypotenuse of the equilateral triangle to plane the lettuce leaves, thereby achieving the working purpose of simulating manual leaf planing; during this process, the leaf planer 42 and the lettuce are always kept in contact, ensuring the integrity of the leaf planing process and the accuracy of leaf planing.

[0057] See also Figure 1 , Figure 2 and Fig.12 The collecting component 5 is assembled on the rear side of the bottom frame 11. The collecting component 5 is provided with a support frame 51. The support angle of the support frame 51 is adjustable. The collecting component 5 is also provided with a collecting frame 52. The collecting frame 52 is assembled on the support frame 51. The support angle adjustment of the support frame 51 can be achieved by manual adjustment or by interlocking of hydraulic rods and gears. The moving component 6 includes a bridge frame 61 and a walking mechanism 62. The walking mechanism 62 can be two independently driven front wheels 621 and two universal rear wheels 622. The walking mechanism 62 can also be a crawler chain.

[0058] In this embodiment, since the lettuce will tilt toward the collecting component at a certain angle during the transportation and leaf-shaving process, in order to prevent the lettuce dropped from the tail of the conveying component 3 from having a large contact area with the collecting frame 52 and causing the lettuce to collide and be damaged, the support frame 51 of the collecting component 5 is designed to have an adjustable support angle, so that the frame mouth of the collecting frame 52 is tilted toward the conveying component 3, which is convenient for collecting complete lettuces.

[0059] In this embodiment, considering that the terrain and topography for lettuce planting vary greatly, in order to improve the universality of the device of the utility model, the walking mechanism 62 of the movable part 6 can be either wheeled or crawler chain, and the movable part 6 and the main frame 1 are detachable assemblies. Embodiment 2:

[0060] Through lettuce harvesting experiments, it was found that the leaf-shaving component 4 of the lettuce harvesting and leaf-shaving device described in the first embodiment still has a large room for optimization.

[0061] See also Figure 5 , Figure 6 and Figure 8 As a preferred embodiment, an installation interlayer 43 may be provided between the sprocket fixing plate 411 and the shell side plate 13, the projection of the chain 413 on the sprocket fixing plate 411 is a through groove, a double equilateral triangle slot 431 is provided in the installation interlayer 43, a clamping column 432 is mounted on the double equilateral triangle slot 431, the clamping column 432 is a "human" shaped structure, the top of the clamping column 432 passes through the sprocket fixing plate 411 and the planer pliers connecting end 421 and is symmetrically arranged on both sides of the same chain link, the double equilateral triangle slot 431 always clamps the column leg of the clamping column 432; the number of the clamping column 432 and the planer pliers 42 is at least one pair.

[0062] In this embodiment, by providing a double equilateral triangle slot 431 and a post 432, and by symmetrically arranging the top of the post 432 through the sprocket fixing plate 411 and the leaf planer connecting end 421 on both sides of the same chain link, it is ensured that the double equilateral triangle slot 431 is always engaged with the column leg of the post 432, so that the leaf planer 42 can always remain parallel to the ground when rotating on the motion circulation mechanism 41, thereby solving the problem that the leaf planer 42 swings due to the rotational inertia when shaving lettuce at high speed, or even pulls the chain 413 out of the sprocket group 412.

[0063] In this embodiment, as a preferred implementation scheme, the sprocket group 412 is provided with a driving unit. By providing the driving unit for the sprocket group 412 and actively rotating the motion circulation mechanism 41, it can be avoided that when the device is shaving lettuce, if the shaving stroke is too short, the shaving clamp 42 is not pushed by external force, the motion circulation mechanism 41 cannot complete the cyclic rotation, and continuous shaving operation cannot be performed.

[0064] See also Figure 9-11 In this embodiment, as a preferred implementation scheme, the collecting component 5 is also provided with a frame storage rack 53 and a pushing mechanism 54. The frame storage rack 53 is fixed at the rear end of the main frame 1. The frame storage rack 53 has lifting and storing mechanisms 53A symmetrically arranged on both sides. The pushing mechanism 54 is arranged at the bottom of the frame storage rack 53. The pushing mechanism 54 is used to push the collecting frame 52 to the upper side of the supporting frame 51 and push the collecting frame 52 to fall to the ground.

[0065] See also Fig.10 The lifting and storing mechanism 53A is a lifting chain mechanism, which includes a driving sprocket structure 531, a driven sprocket structure 532 and a lifting chain 533. A support plate 534 is provided on the chain links of the lifting chain 533. There is at least one lifting chain mechanism on one side, and all lifting chain mechanisms rotate synchronously. The pushing mechanism 54 is a conveying roller mechanism.

[0066] In this embodiment, the lifting and storage mechanism 53A can store multiple empty collecting frames 52. The lifting and storage mechanism 53A places the empty collecting frames 52 on the upper part of the pushing mechanism 54, and the pushing mechanism 54 pushes the collecting frames 52 to the supporting frame 51, or removes the fully loaded collecting frames 52 from the supporting frame 51 and pushes them to the ground, thereby realizing full-process intervention in lettuce harvesting and improving the level of automation.

[0067] See also Fig.11 In this embodiment, as a preferred implementation scheme, a plurality of top beams 7 are also installed on the top of the device, and the top beams 7 are used as handrail roll cages for lifting the device to prevent internal components of the device from being collided when the device topples over.

[0068] The terms "first", "second", "third" (if any) in the specification and claims of the present utility model and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described can be implemented in an order other than those illustrated or described here.

[0069] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or service tool that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or service tool.

[0070] Finally, it should be noted that the contents of the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that for ordinary technicians in the field, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the scope of protection of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A lettuce harvesting and leaf-shaving device, characterized in that: It comprises a main frame (1), a cutting component (2), a conveying component (3), a leaf planing component (4), a collecting component (5), a moving component (6) and a controller; The main frame (1) is provided with a bottom frame (11), and upright posts (12) are fixed at (4) corners of the bottom frame (11). The left and right sides of the bottom frame (11) are provided with outer shell side panels (13), and the outer shell side panels (13) are fixedly connected to the upright posts (12); The cutting component (2) is mounted on the front end of the main frame (1), and a straightening guide rod (14) is mounted between the cutting component (2) and the main frame (1); The conveying component (3) is assembled on the top of the main frame (1), and the inclination angle of the conveying component (3) is adjustable; The leaf planing component (4) and the collecting component (5) are assembled inside the main frame (1), the leaf planing component (4) is assembled close to the side of the cutting component (2), and the collecting component (5) is detachably assembled; The moving component (6) is assembled at the bottom of the main frame (1), and the moving component (6) and the main frame (1) are detachably assembled; The controller is assembled inside the main frame (1), and is provided with a driving power supply and a controller, wherein the driving power supply and the controller are electrically connected to the cutting component (2), the conveying component (3), the leaf planing component (4), the collecting component (5) and the moving component (6).

2. The lettuce harvesting and leaf-shaving device according to claim 1, characterized in that: The cutting component (2) comprises a mounting seat (21), a blade motor (22) and a disc-shaped blade (23); the mounting seat (21) is mounted on the front end of the main frame (1); the blade motor (22) is mounted on the mounting seat (21); the disc-shaped blade (23) is mounted on the shaft of the blade motor (22); the cutting components (2) are assembled in pairs, and the disc-shaped blades (23) of the two cutting components (2) are placed in an overlapping manner with each other in an up-and-down manner.

3. The lettuce harvesting and leaf-shaving device according to claim 1, characterized in that: The conveying component (3) is provided with a conveyor belt main beam (31), a mounting column (32) is provided at the bottom of the conveyor belt main beam (31), the mounting column (32) is hinged to the top of the column (12) of the main frame (1), the rear end of the conveyor belt main beam (31) is provided with an outwardly inclined mounting end (33), the front end of the conveyor belt main beam (31) and the rear end of the mounting end (33) are both provided with a tensioning pulley (34), the tensioning pulley (34) located at the rear end of the mounting end (33) is equipped with a driving motor (35), the upper and lower end surfaces of the conveyor belt main beam (31) are both provided with a plurality of mounting grooves (36), the side of the conveyor belt main beam (31) is provided with a side tensioning wheel bracket (37), one end of the side tensioning wheel bracket (37) is mounted in the mounting groove ( 36), the other end of the side tensioning wheel bracket (37) is equipped with a driven wheel (371), the conveyor belt main beam (31) on the same side as the side tensioning wheel bracket (37) is provided with spring bases (38) equal to the number of mounting grooves (36), a spring (381) is arranged between the spring base (38) and the side tensioning wheel bracket (37), a conveyor belt (39) is arranged on the periphery of the conveyor belt main beam (31), the conveyor belt (39) is sequentially mounted on the tensioning wheel (34) and the driven wheel (371), the conveying components (3) are respectively mounted in pairs on the top of the left and right sides of the main frame (1), the two conveyor belts (39) constitute a conveying channel (391), and the front and rear ends of the conveying channel (391) are both open structures.

4. The lettuce harvesting and leaf-shaving device according to claim 1, characterized in that: The leaf planing component (4) comprises a motion circulation mechanism (41) and a leaf planing clamp (42), wherein the motion circulation mechanism (41) is mounted on the inner side of the outer shell side plate (13) of the main frame (1), and the motion circulation mechanism (41) is provided with a sprocket fixing plate (411), and a sprocket group (412) is mounted on one side of the sprocket fixing plate (411), wherein the sprocket group (412) has no less than three sprockets, wherein the three sprockets form the vertices of an equilateral triangle, and the other sprockets are evenly distributed on the sides of the equilateral triangle, and the sprocket group (412) is equipped with a chain (413); the leaf planing clamp (42) is provided with a leaf planing clamp A connecting end (421) and a planer clamping end (422), wherein the planer clamp connecting end (421) is assembled on the chain (413), the planer clamping end (422) is located directly below the horizontal axis of the conveying component (3), a push rod (424) is provided in the middle of the planer clamp (42), planer clamp heads (423) are hinged on both sides of the planer clamping end (422), a return spring (425) is provided between the push rod (424) and the planer clamping end (422), connecting rods (426) are hinged on both sides of the push rod (424), and the other end of the connecting rod (426) is hinged on the planer clamp head (423).

5. The lettuce harvesting and leaf-shaving device according to claim 4, characterized in that: An installation interlayer (43) may be provided between the sprocket fixing plate (411) and the housing side plate (13); the projection of the chain (413) on the sprocket fixing plate (411) is a through groove; a double equilateral triangle clamping groove (431) is provided in the installation interlayer (43); a clamping column (432) is mounted on the double equilateral triangle clamping groove (431); the clamping column (432) is a "human" shaped structure; the top of the clamping column (432) penetrates the sprocket fixing plate (411) and the leaf planer connecting end (421) and is symmetrically arranged on both sides of the same chain link; the double equilateral triangle clamping groove (431) is always clamped to the column leg of the clamping column (432); the clamping column (432) and the leaf planer (42) are at least a pair.

6. The lettuce harvesting and leaf-shaving device according to claim 1, characterized in that: The collecting component (5) is mounted on the rear side of the bottom frame (11); the collecting component (5) is provided with a support frame (51); the support angle of the support frame (51) is adjustable; the collecting component (5) is also provided with a collecting frame (52); the collecting frame (52) is mounted on the support frame (51).

7. The lettuce harvesting and leaf-shaving device according to claim 6, characterized in that: The collecting component (5) is further provided with a frame storage rack (53) and a pushing mechanism (54); the frame storage rack (53) is fixed at the rear end of the main frame (1); lifting and lowering storage mechanisms (53A) are symmetrically provided on both sides of the frame storage rack (53); the pushing mechanism (54) is arranged at the bottom of the frame storage rack (53); the pushing mechanism (54) is used to push the collecting frame (52) to the upper side of the supporting frame (51) and to push the collecting frame (52) to fall to the ground.

8. The lettuce harvesting and leaf-shaving device according to claim 7, characterized in that: The lifting and storing mechanism (53A) is a lifting and chain mechanism, which comprises a driving sprocket structure (531), a driven sprocket structure (532) and a lifting chain (533); a support plate (534) is provided on the chain link of the lifting chain (533); there is at least one lifting and chain mechanism on one side, and all lifting and chain mechanisms rotate synchronously; the pushing mechanism (54) is a conveying roller mechanism.

9. The lettuce harvesting and leaf-shaving device according to claim 1, characterized in that: The moving component (6) comprises a bridge frame (61) and a walking mechanism (62); the walking mechanism (62) may be two independently driven front wheels (621) and two universal rear wheels (622); the walking mechanism (62) may also be a crawler chain.

10. The lettuce harvesting and leaf-shaving device according to any one of claims 1 to 9, characterized in that: The top of the device is also equipped with a plurality of top beams (7), which are used as handrail anti-roll cages for lifting the device to prevent internal parts of the device from being collided when the device falls over.

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