Lettuce harvesting and leaf removing machine

Abstract

The invention discloses a lettuce harvesting and leaf removing machine, and relates to the related technical field of lettuce harvesting. The harvester comprises a movable supporting assembly, the movable supporting assembly comprises an outer supporting frame body, two conveying belts are arranged in the outer supporting frame body, one side of the outer supporting frame body is fixedly connected with a harvesting conveying assembly, the harvesting conveying assembly comprises a harvesting supporting frame, the harvesting supporting frame is provided with a transmission roller, and one side face of the harvesting supporting frame is fixedly connected with a cutting supporting frame; a cutting disc and an excavating drill bit are rotationally connected to the cutting supporting frame, a leaf removing assembly is fixedly connected to one side face of the outer supporting frame, and the leaf removing assembly comprises a leaf removing special-shaped cutter. According to the lettuce leaf removing device, the digging drill bit rotates to loosen lettuces, the cutting disc cuts the lettuces when making contact with the lettuces, the cut lettuces move to the position between the two conveying belts along with the transmission rollers and move towards the leaf removing special-shaped cutter along with the conveying belts, and the leaf removing special-shaped cutter is used for conducting leaf removing treatment on the lettuces; and continuous operation of automatic cutting and leaf removing of the lettuce is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field related to lettuce harvesting, and in particular relates to a lettuce harvesting and leaf removing machine. Background Art

[0002] Lettuce harvesting equipment is an automated harvesting device for lettuce. With the development of modern agriculture, large-scale agricultural planting has gradually been promoted. During the large-scale planting of lettuce, when the lettuce needs to be harvested, the traditional manual cutting method is more cumbersome when processing large areas of lettuce. Therefore, in the large-scale commercial planting process, lettuce harvesting equipment is widely used, which can efficiently complete the harvesting operation and reduce manpower requirements.

[0003] Common lettuce harvesting devices harvest lettuce by rotating blades, and the cut lettuce needs to be picked up and the cut lettuce leaves need to be removed. In actual use, the cutting and leaf removal operations are not continuous, and additional lettuce collection and leaf removal operations are required after cutting, which makes the automation insufficient. To this end, we provide a lettuce harvesting and leaf removal machine to solve the above technical problems. Summary of the invention

[0004] The object of the present invention is to provide a lettuce harvester and leaf remover, which solves the problems in the above technical background through the specific structural design of a mobile support component, a harvesting transmission component and a leaf removing component.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a lettuce harvester and leaf remover, comprising a movable support assembly, wherein the movable support assembly comprises an outer support frame, a side of the outer support frame is fixedly connected to a collecting frame, and two conveyor belts are symmetrically arranged inside the outer support frame, the conveyor belts are made of elastic material and can move back and forth in a cycle, and there is a certain interval between the two conveyor belts.

[0007] A harvesting transmission assembly is fixedly connected to the side of the outer support frame away from the collecting frame, and the harvesting transmission assembly includes a harvesting support frame fixedly connected to the outer support frame, a plurality of transmission rollers are rotatably arranged inside the harvesting support frame, and a cutting support frame is fixedly connected to the side of the harvesting support frame away from the collecting frame, a cutting disc is rotatably arranged on the lower surface of the cutting support frame, and an excavating drill bit is symmetrically rotatably arranged on the side of the cutting support frame away from the harvesting support frame; a leaf removal assembly is fixedly connected to the side of the outer support frame close to the collecting frame, and the leaf removal assembly includes a plurality of rotatably arranged leaf removal special-shaped knives.

[0008] The present invention is further configured as follows: the outer support frame is provided with first moving wheels for rotation relative to two side surfaces, a support handle is fixedly connected to the upper surface of the outer support frame, two first transmission rollers, two second transmission rollers and two third transmission rollers are symmetrically connected for rotation relative to two inner side walls of the outer support frame; the first transmission rollers, the second transmission rollers and the third transmission rollers are connected by a transmission belt, two transmission gears are symmetrically provided for rotation on one side surface of the outer support frame, the two transmission gears are meshed with each other, and the transmission gears are fixedly connected to the corresponding first transmission rollers, and a first driving motor is fixedly installed on the other side surface of the outer support frame, and the output shaft of the first driving motor is fixedly connected to the corresponding first transmission roller.

[0009] The present invention is further configured as follows: the harvesting support frame is fixedly connected with a second moving wheel on two opposite side surfaces, and the harvesting support frame is fixedly connected with guide blocks on two opposite inner side walls; a first transmission wheel is rotatably arranged on the upper surface of the cutting support frame, the first transmission wheel is a double-layer structure, the first transmission wheel is fixedly connected to the cutting disc, the cutting support frame is fixedly connected with a mounting frame on the lower surface, the mounting frame is fixedly connected with a second driving motor on the lower surface, and the output shaft of the second driving motor is fixedly connected to the cutting disc.

[0010] The present invention is further configured as follows: two first bevel gears are symmetrically rotatably arranged on the upper surface of the cutting support frame, a second transmission wheel is fixedly connected to the upper surface of the first bevel gear, and the second transmission wheel is connected to the first transmission wheel by a transmission belt; two second bevel gears are symmetrically rotatably arranged on a side of the cutting support frame away from the excavation drill bit, the second bevel gears are meshed with the first bevel gears, and the second bevel gears are fixedly connected to the corresponding excavation drill bit.

[0011] The present invention is further configured as follows: the leaf removing component also includes a leaf removing support plate fixedly connected to the outer supporting frame, a through hole is provided on the surface of the leaf removing support plate, and a plurality of guide grooves are provided on a side of the leaf removing support plate close to the outer supporting frame; the leaf removing special-shaped knife is rotatably connected to a side of the leaf removing support plate close to the guide groove through an ear plate, an adjusting gear is rotatably provided on one side of the leaf removing special-shaped knife, a transmission rack is slidably provided inside the guide groove, the adjusting gear and the corresponding transmission rack are meshed with each other, and a return spring is fixedly connected between the transmission rack and the inner side wall of the guide groove.

[0012] The present invention has the following beneficial effects:

[0013] 1. The present invention sets a movable support component and a harvesting transmission component. The outer support frame moves, driving the digging drill bit and the cutting disc to move synchronously. The digging drill bit first loosens the soil on both sides of the lettuce. When the cutting disc contacts the lettuce, it is aligned and cut. The cut lettuce is poured onto the transmission roller and moves toward the conveyor belt with the transmission roller. When the lettuce moves between the two conveyor belts, it moves synchronously with the conveyor belt, thereby realizing the automatic harvesting operation of the lettuce, facilitating the transfer of the harvested lettuce and facilitating subsequent operations.

[0014] 2. The present invention sets a leaf removal component. Under the action of a conveyor belt, the lettuce moves toward the leaf removal shaped knife at a certain speed. One end of the lettuce passes through the gap between the leaf removal shaped knives. As the lettuce moves, the diameter of the lettuce gradually increases, so that the lettuce squeezes the leaf removal shaped knife. The leaf removal shaped knife rotates and removes the leaves of the lettuce, thereby realizing the automated leaf removal operation of the lettuce, facilitating continuous operation after harvesting, and reducing additional processing procedures.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 The present invention is a schematic diagram of the structure of a lettuce harvesting and leaf removing machine.

[0018] Figure 2 for Figure 1 Longitudinal structural section view.

[0019] Figure 3 It is a structural schematic diagram of the mobile support assembly in the present invention.

[0020] Figure 4 for Figure 3 Schematic diagram of the structure from another angle.

[0021] Figure 5 It is a longitudinal structural cross-sectional view of the movable support assembly in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the harvesting transmission component in the present invention.

[0023] Figure 7 for Figure 6 A local enlarged schematic diagram of point A in the middle.

[0024] Figure 8 It is a schematic diagram of the structure of the leaf removal component in the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-mobile support assembly, 101-outer support frame, 102-collecting frame, 103-transmission belt, 104-first moving wheel, 105-support handle, 106-first transmission roller, 107-second transmission roller, 108-third transmission roller, 109-transmission gear, 110-first drive motor, 2-harvesting transmission assembly, 201-harvesting support frame, 202-transmission roller, 203-cutting disc, 204-digging drill bit, 205-second moving wheel, 206-guide block, 207-first transmission wheel, 208-first conical gear, 209-second transmission wheel, 210-second conical gear, 3-leaf removal assembly, 301-leaf removal special-shaped knife, 302-leaf removal support plate, 303-adjusting gear, 304-transmission rack, 305-reset spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] For specific embodiment 1, please refer to Figure 1-8 The present invention is a lettuce harvester and leaf remover, comprising a mobile support assembly 1. Specifically, the mobile support assembly 1 comprises an outer support frame 101, a collecting frame 102 is fixedly connected to one side of the outer support frame 101, and two conveyor belts 103 are symmetrically arranged inside the outer support frame 101. The conveyor belts 103 are made of elastic material and can move back and forth in a cycle. There is a certain interval between the two conveyor belts 103.

[0029] Furthermore, a harvesting transmission component 2 is fixedly connected to a side of the outer support frame 101 away from the collecting frame 102, and the harvesting transmission component 2 includes a harvesting support frame 201 fixedly connected to the outer support frame 101, and a plurality of transmission rollers 202 are rotatably arranged inside the harvesting support frame 201, and the transmission rollers 202 are driven by an external driving device so that the transmission rollers 202 rotate synchronously in the same direction, and a cutting support frame is fixedly connected to a side of the harvesting support frame 201 away from the collecting frame 102, and a cutting disc 203 is rotatably arranged on the lower surface of the cutting support frame, and an excavation drill bit 204 is symmetrically rotatably arranged on a side of the cutting support frame away from the harvesting support frame 201; a leaf removal component 3 is fixedly connected to a side of the outer support frame 101 close to the collecting frame 102, and the leaf removal component 3 includes a plurality of rotatably arranged leaf removal special-shaped knives 301, and the leaf removal special-shaped knives 301 are L-shaped structures (such as Figure 8 As shown in FIG. 1 , there is a certain gap between the ends of the leaf-removing special-shaped knife 301 to facilitate the passage of lettuce.

[0030] The operation process of this embodiment is as follows: the outer support frame 101 is controlled to move. During the movement of the outer support frame 101, the excavation drill bit 204 contacts the soil on both sides of the cut lettuce and excavates and loosens the soil for the lettuce. As the outer support frame 101 moves, when the cutting disc 203 contacts the cut lettuce, the root of the lettuce is cut. After the lettuce is cut, it falls toward the outer support frame 101. The cut lettuce falls on the transmission roller 202 and moves toward the conveyor belt 103 as the transmission roller 202 rotates, so that the lettuce is located between the two conveyor belts 103. As the conveyor belt 103 reciprocates, the movement speed of the lettuce increases and moves toward the defoliating shaped knife 301. When the lettuce contacts the defoliating shaped knife 301, the defoliating shaped knife 301 is squeezed and defoliated by the defoliating shaped knife 301, and the defoliating shaped knife 301 rotates as the diameter of the lettuce changes.

[0031] For specific embodiment 2, please refer to Figure 1-8 On the basis of the specific embodiment 1, specifically, the outer support frame 101 is provided with first moving wheels 104 for rotation relative to the two side surfaces, a support handle 105 is fixedly connected to the upper surface of the outer support frame 101, and the outer support frame 101 is symmetrically connected to the two inner side walls for rotation relative to the two first transmission rollers 106, two second transmission rollers 107 and two third transmission rollers 108, and the second transmission roller 107 deviates from the position between the first transmission roller 106 and the third transmission roller 108, so that the first transmission roller 106, the second transmission roller 107 and the third transmission roller 108 have a certain angle (such as Figure 5As shown); the first transmission roller 106, the second transmission roller 107 and the third transmission roller 108 are connected by a transmission belt 103, and two transmission gears 109 are symmetrically arranged on one side of the outer support frame 101 for rotation. The two transmission gears 109 are meshed with each other, and the transmission gears 109 are fixedly connected to the corresponding first transmission roller 106. A first driving motor 110 is fixedly installed on the other side of the outer support frame 101, and the output shaft of the first driving motor 110 is fixedly connected to the corresponding first transmission roller 106.

[0032] Furthermore, the harvesting support frame 201 is fixedly connected with a second moving wheel 205 on both sides thereof, and the harvesting support frame 201 is fixedly connected with guide blocks 206 on both inner walls thereof; a first transmission wheel 207 is rotatably provided on the upper surface of the cutting support frame, and the first transmission wheel 207 is a double-layer structure, and the first transmission wheel 207 is fixedly connected to the cutting disc 203; a mounting frame is fixedly connected to the lower surface of the cutting support frame, and a second driving motor is fixedly connected to the lower surface of the mounting frame, and the output shaft of the second driving motor is fixedly connected to the cutting disc 203, and the cutting disc 203 is located in the middle of the two excavation drill bits 204.

[0033] Furthermore, two first bevel gears 208 are symmetrically rotatably arranged on the upper surface of the cutting support frame, a second transmission wheel 209 is fixedly connected to the upper surface of the first bevel gear 208, and the second transmission wheel 209 is connected to the first transmission wheel 207 by a transmission belt; two second bevel gears 210 are symmetrically rotatably arranged on the side of the cutting support frame away from the excavation drill bit 204, the second bevel gears 210 and the first bevel gears 208 are meshed with each other, and the second bevel gears 210 are fixedly connected to the corresponding excavation drill bit 204.

[0034] The operation process of this embodiment is as follows: the staff member holds the support handle 105 and pushes the outer support frame 101 to move the outer support frame 101. During the movement of the outer support frame 101, the second drive motor is started to drive the cutting disc 203 to rotate, and the first transmission wheel 207 rotates synchronously. Under the connection of the transmission belt, the second transmission wheel 209 rotates synchronously, and the first bevel gear 208 rotates synchronously with the second transmission wheel 209. When the first bevel gear 208 is meshed with the second bevel gear 210, Under the action, the second bevel gear 210 rotates and drives the excavation drill bit 204 to rotate, so that during the movement of the outer support frame 101, the excavation drill bit 204 contacts the soil on both sides of the lettuce and loosens the soil. At the same time, the lettuce is located between the two excavation drill bits 204. The excavation drill bit 204 supports the lettuce to a certain extent, which is convenient for subsequent cutting. When the cutting disc 203 contacts the lettuce, the root of the lettuce is cut, and the cut lettuce pours toward the direction of the outer support frame 101 and falls on the transmission roller 202.

[0035] The transmission rollers 202 are controlled to rotate synchronously in the same direction, driving the cut lettuce to move toward the conveyor belt 103. At the same time, under the action of the guide block 206, the lettuce is located in the middle position of the conveyor belt 103. At the same time, the first drive motor 110 is started to drive the first conveyor roller 106 and the corresponding transmission gear 109 to rotate. Under the meshing action of the two transmission gears 109, the two conveyor belts 103 move synchronously in opposite directions. The lettuce is located between the two conveyor belts 103 and moves synchronously with the movement of the conveyor belts 103. At the same time, the movement speed of the lettuce increases.

[0036] For specific embodiment 3, please refer to Figure 1-8 On the basis of specific embodiment 1 and specific embodiment 2, specifically, the leaf removal component 3 also includes a leaf removal support plate 302 fixedly connected to the outer support frame 101, a through opening is provided on the surface of the leaf removal support plate 302, and a side surface of the leaf removal support plate 302 close to the outer support frame 101 is provided with a plurality of guide grooves.

[0037] Furthermore, the defoliating shaped knife 301 is rotatably connected to a side of the defoliating support plate 302 close to the guide slot through an ear plate, an adjusting gear 303 is rotatably provided on one side of the defoliating shaped knife 301, a transmission rack 304 is slidably provided inside the guide slot, the adjusting gear 303 and the corresponding transmission rack 304 are meshed with each other, and a return spring 305 is fixedly connected between the transmission rack 304 and the inner wall of the guide slot.

[0038] The operation process of this embodiment is as follows: the lettuce moves toward the defoliating shaped knife 301 driven by the conveyor belt 103. When the lettuce leaves the conveyor belt 103, the lettuce moves toward the defoliating shaped knife 301 at a certain speed. When one end of the lettuce contacts the defoliating shaped knife 301, one end of the lettuce transmits the gap between the defoliating shaped knives 301. As the diameter of the lettuce increases, the lettuce gradually squeezes the defoliating shaped knife 301, causing the defoliating shaped knife 301 to rotate, causing the ends of the defoliating shaped knives 301 to gradually move away, and the gap between the ends of the defoliating shaped knives 301 increases. At the same time, the defoliating shaped knives 301 are pressed against the defoliating shaped knives 301. The lettuce is defoliated. During the rotation of the defoliating shaped knife 301, the defoliating shaped knife 301 drives the adjusting gear 303 to rotate synchronously. Under the meshing action of the adjusting gear 303 and the transmission rack 304, the transmission rack 304 moves and squeezes the reset spring 305. When the lettuce is defoliated, it passes through the through opening and falls into the collection frame 102. The external force received by the defoliating shaped knife 301 disappears. Under the elastic recovery action of the reset spring 305, the transmission rack 304 moves in the reverse direction, driving the adjusting gear 303 to rotate in the reverse direction, thereby causing the defoliating shaped knife 301 to rotate back to the initial state.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lettuce harvester and leaf remover, comprising a movable support assembly (1), characterized in that: The mobile support assembly (1) comprises an outer support frame (101), a side surface of the outer support frame (101) is fixedly connected to a collecting frame (102), and two conveyor belts (103) are symmetrically arranged inside the outer support frame (101), the conveyor belts (103) are made of elastic material and can move back and forth in a cycle, and there is a certain interval between the two conveyor belts (103); A harvesting transmission component (2) is fixedly connected to a side of the outer support frame (101) away from the collecting frame (102), and the harvesting transmission component (2) comprises a harvesting support frame (201) fixedly connected to the outer support frame (101), a plurality of transmission rollers (202) are rotatably arranged inside the harvesting support frame (201), and a cutting support frame is fixedly connected to a side of the harvesting support frame (201) away from the collecting frame (102), a cutting disc (203) is rotatably arranged on the lower surface of the cutting support frame, and an excavation drill bit (204) is symmetrically rotatably arranged on a side of the cutting support frame away from the harvesting support frame (201); A leaf removal assembly (3) is fixedly connected to a side surface of the outer support frame (101) close to the collection frame (102), and the leaf removal assembly (3) comprises a plurality of rotatably arranged leaf removal special-shaped knives (301).

2. The lettuce harvester and defoliator according to claim 1, characterized in that: The outer support frame (101) is provided with first moving wheels (104) rotatably relative to two side surfaces, a support handle (105) is fixedly connected to the upper surface of the outer support frame (101), and two first transmission rollers (106), two second transmission rollers (107) and two third transmission rollers (108) are symmetrically rotatably connected to the two inner side walls of the outer support frame (101).

3. The lettuce harvester and leaf remover according to claim 2, characterized in that: The first transmission roller (106), the second transmission roller (107) and the third transmission roller (108) are connected via a transmission belt (103); two transmission gears (109) are symmetrically rotatably arranged on one side of the outer support frame (101); the two transmission gears (109) are meshed with each other, and the transmission gears (109) are fixedly connected to the corresponding first transmission roller (106); a first driving motor (110) is fixedly installed on the other side of the outer support frame (101); and an output shaft of the first driving motor (110) is fixedly connected to the corresponding first transmission roller (106).

4. The lettuce harvester and defoliator according to claim 3, characterized in that: The harvesting support frame (201) is fixedly connected to the second moving wheels (205) on two opposite side surfaces, and the harvesting support frame (201) is fixedly connected to the guide blocks (206) on two opposite inner side walls.

5. The lettuce harvester and defoliator according to claim 4, characterized in that: A first transmission wheel (207) is rotatably arranged on the upper surface of the cutting support frame, the first transmission wheel (207) is a double-layer structure, the first transmission wheel (207) is fixedly connected to the cutting disc (203), a mounting frame is fixedly connected to the lower surface of the cutting support frame, a second drive motor is fixedly connected to the lower surface of the mounting frame, and an output shaft of the second drive motor is fixedly connected to the cutting disc (203).

6. The lettuce harvester and defoliator according to claim 5, characterized in that: Two first bevel gears (208) are symmetrically rotatably arranged on the upper surface of the cutting support frame, a second transmission wheel (209) is fixedly connected to the upper surface of the first bevel gear (208), and the second transmission wheel (209) is connected to the first transmission wheel (207) via a transmission belt.

7. The lettuce harvester and defoliator according to claim 6, characterized in that: Two second bevel gears (210) are symmetrically arranged on a side of the cutting support frame away from the excavation drill bit (204), the second bevel gears (210) are meshed with the first bevel gear (208), and the second bevel gears (210) are fixedly connected to the corresponding excavation drill bit (204).

8. The lettuce harvester and defoliator according to claim 7, characterized in that: The leaf removal component (3) further comprises a leaf removal support plate (302) fixedly connected to the outer support frame (101), a through opening being provided on the surface of the leaf removal support plate (302), and a plurality of guide grooves being provided on a side surface of the leaf removal support plate (302) close to the outer support frame (101).

9. The lettuce harvester and defoliator according to claim 8, characterized in that: The defoliating shaped knife (301) is rotatably connected to a side of the defoliating support plate (302) close to the guide slot through an ear plate, an adjusting gear (303) is rotatably arranged on one side of the defoliating shaped knife (301), a transmission rack (304) is slidably arranged inside the guide slot, the adjusting gear (303) and the corresponding transmission rack (304) are meshed with each other, and a return spring (305) is fixedly connected between the transmission rack (304) and the inner wall of the guide slot.

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