Small intelligent leaf vegetable harvester

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a small intelligent leaf vegetable harvester which comprises a supporting frame, a conveying component, a cutting component and a soil removing component, the cutting component comprises a cutting knife and a rotating shaft, the cutting knife is rotationally connected to the front end of the supporting frame through the rotating shaft, and the cutting edge of the cutting knife faces the vegetables; the conveying component comprises a conveying belt and a collecting box, the conveying belt is obliquely installed in the middle of the supporting frame and located behind the cutting knife, the conveying belt inclines upwards, the soil removing component comprises a vibration separation assembly, the vibration separation assembly is obliquely connected to the tail end of the conveying belt and inclines downwards, and the collecting box is fixedly connected to the tail end of the vibration separation assembly. According to the small intelligent leaf vegetable harvester, soil carried by harvested vegetables can be removed.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a small intelligent leafy vegetable harvester. Background Art

[0002] As my country's agricultural modernization accelerates and its agricultural industrial structure continues to optimize, the vegetable industry, as a key cash crop, continues to grow in importance. Amidst rapid urbanization and the continued migration of rural labor to cities, agricultural production faces increasingly severe challenges in finding and maintaining high labor costs. Furthermore, with rising consumer spending, the market is placing higher demands on vegetable quality and supply stability. These changes are driving the development of comprehensive, high-quality, and efficient agricultural mechanization in my country. As a key component of agricultural mechanization, the development of vegetable harvesting machinery is directly linked to the competitiveness of my country's vegetable industry. Currently, domestic vegetable harvester research and development has shifted from simple imitation to independent innovation.

[0003] Existing vegetable harvesters consist of a harvesting unit, a conveying unit, and a collection unit. The harvesting unit at the front of the harvester cuts the vegetables, and the conveying unit behind the cutting unit transports the cut vegetables to the collection unit at the rear, completing the automated harvesting of vegetables. However, during the cutting process, dirt mixes into the harvesting area. After the harvest is complete, it is transported along the conveyor belt to the collection box. Throughout this process, the dirt moves along with the vegetables and is collected, requiring subsequent cleaning when the vegetables are packaged. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a small intelligent leafy vegetable harvester that can remove soil carried by the harvested vegetables.

[0005] The embodiment of the present invention provides a small intelligent leafy vegetable harvester, comprising: a support frame, a transport component, a cutting component, and a soil removal component;

[0006] The cutting component includes: a cutting knife and a rotating shaft, wherein the cutting knife is rotatably connected to the front end of the supporting frame via the rotating shaft, and the cutting blade of the cutting knife faces the vegetables;

[0007] The transport components include: a conveyor belt and a collection box. The conveyor belt is installed obliquely in the middle of the support frame, behind the cutting knife, and the conveyor belt is tilted upwards;

[0008] The soil removal component includes: a vibration separation component, the vibration separation component is obliquely connected to the end of the conveyor belt, the vibration separation component is tilted downward, and a collection box is fixedly connected to the end of the vibration separation component, and the collection port of the collection box is lower than the vibration separation component.

[0009] Optionally, the vibration separation component includes a vibration plate, a vibration motor and a guard plate. The vibration plate is obliquely connected to the end of the conveyor belt. The vibration plate uses a sieve plate. The vibration motor is fixed on the vibration plate, and the guard plate is fixed on both sides of the vibration plate.

[0010] Optionally, the surface of the sieve plate is wrapped with a polyurethane layer.

[0011] Optionally, the sieve plate is divided into an upper sieve plate and a lower sieve plate in the middle, the mesh size of the upper sieve plate is 5 mesh, the mesh size of the lower sieve plate is 20 mesh, the upper sieve plate 3100 and the lower sieve plate 3101 are both connected to a vibration motor, the vibration frequency of the upper sieve plate 3100 is 10Hz, and the vibration frequency of the lower sieve plate 3101 is 20Hz.

[0012] Optionally, a plurality of nozzles are fixed on the guard plate, and the plurality of nozzles are evenly distributed on the guard plates on both sides.

[0013] Optionally, a toggle assembly is further included, which includes multiple toggle rods and a mounting frame. The multiple toggle rods are evenly distributed on the mounting frame. The mounting frame is rotatably connected to the support frame, and the rotation direction of the mounting frame is the same as the forward direction of the vehicle.

[0014] Optionally, a plurality of toggle rods are connected to the mounting bracket via corresponding springs.

[0015] Optionally, a debris collection box is fixed below the sieve plate, a collection box is connected to the end of the sieve plate, and both sides of the debris collection box are connected to the guard plate.

[0016] Optionally, the debris collection box is divided into three layers, an upper debris layer, a middle filter layer and a lower water storage layer.

[0017] Optionally, mudguards are fixed on both sides of the conveyor belt.

[0018] The technical solution provided by the embodiment of the present invention has the following advantages over the prior art: In the present invention, the cutting blade completes the cutting operation of the vegetable roots at the front end of the support frame, separating the vegetables from the soil. The cut vegetables fall onto the upwardly inclined conveyor belt and are automatically transported to the vibration separation component. After the vegetables enter the downwardly inclined vibration separation component, the attached soil is completely separated under the action of vibration. The cleaned vegetables naturally slide along the vibration separation component into the collection box under the action of gravity. The cutting, conveying, cleaning, and collection processes are completed in an integrated manner, which significantly improves the operating efficiency. The vibration separation component ensures the cleanliness of the vegetables and reduces the soil content of the vegetables. The various components work together to reduce manual intervention and labor intensity. The structure is compact and reasonable. The coordinated design of the inclined conveyor belt and the vibration separation component ensures the smooth flow of materials and meets the harvesting needs of different varieties of vegetables. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional schematic diagram of a small intelligent leafy vegetable harvester provided by an embodiment of the present invention;

[0020] Figure 2 A side view of a small intelligent leafy vegetable harvester provided by an embodiment of the present invention;

[0021] Figure 3 A three-dimensional schematic diagram of a wave component provided in an embodiment of the present invention;

[0022] Figure 4 A three-dimensional schematic diagram of a vibration plate provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the layers of a storage box provided in an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Transport component; 10. Conveyor belt; 11. Collection box; 101. Mudguard; 2. Cutting component; 20. Cutting knife; 21. Rotating shaft; 3. Soil removal component; 31. Vibration separation component; 310. Vibration plate; 311. Vibration motor; 312. Guard plate; 3100. Upper sieve plate; 3101. Lower sieve plate; 3120. Nozzle; 313. Collection box; 3130. Debris layer; 3131. Filter layer; 3132. Water storage layer; 4. Support frame; 5. Toggle component; 50. Toggle rod; 51. Mounting frame; 52. Spring. DETAILED DESCRIPTION

[0026] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] The present invention is described below by means of several specific embodiments. To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and components may be omitted. When any component of an embodiment of the present invention appears in more than one drawing, the component may be represented by the same reference numeral in each drawing.

[0029] Figure 1This is a three-dimensional schematic diagram of a small intelligent leafy vegetable harvester provided by an embodiment of the present invention. Figure 2 A side view of a small intelligent leafy vegetable harvester provided by an embodiment of the present invention. Figure 3 A three-dimensional schematic diagram of a wave component provided in an embodiment of the present invention, Figure 4 A three-dimensional schematic diagram of a vibration plate provided in an embodiment of the present invention, Figure 5 A schematic diagram of the layers of a storage box provided in an embodiment of the present invention.

[0030] like Figure 1 As shown, an embodiment of the present invention provides a small-scale intelligent leafy vegetable harvester, comprising: a support frame, a transport component, a cutting component and a soil removal component; the cutting component comprises: a cutting knife and a rotating shaft, the cutting knife is rotatably connected to the front end of the support frame through the rotating shaft, and the cutting knife blade faces the vegetables; the transport component comprises: a conveyor belt and a collecting box, the conveyor belt is obliquely installed in the middle of the support frame, located behind the cutting knife, and the conveyor belt is inclined upward; the soil removal component comprises: a vibration separation component, the vibration separation component is obliquely connected to the end of the conveyor belt, the vibration separation component is inclined downward, and the end of the vibration separation component is fixedly connected to a collection box, and the collection port of the collection box is lower than the vibration separation component.

[0031] The present invention includes a support frame 4, a transport component 1, a cutting component 2 and a soil removal component 3. The cutting component 2 includes a cutting knife 20 and a rotating shaft 21. The cutting knife 20 is rotatably connected to the front end via the rotating shaft 21 and is used to cut off the roots of vegetables. The cutting angle of the cutting knife 20 can be adjusted according to the type of vegetables and the conditions of the land to separate the vegetables from the soil. The transport component 1 includes a conveyor belt 10, a collection box 11 and a support frame 4. The conveyor belt 10 is tiltedly installed in the middle of the support frame 4 via the rotating shaft 21 and is tilted upward so that the vegetables are automatically transported to the vibration separation component 31 after cutting. The vibration separation component 31 is tiltedly installed at the end of the conveyor belt 10 and tilted downward so that the vegetables can remove residual soil under the action of vibration. After the vegetables are transported to the vibration separation component 31 via the conveyor belt 10, the vibration causes the tightly adhered soil to fall off, and eventually the vegetables slide into the collection box 11 under the action of gravity, completing cleaning and collection. The cutting, cleaning, conveying and collecting processes are completed in an integrated manner, which significantly improves the working efficiency. The various components work together to reduce manual intervention and lower the labor intensity. The structure is compact and reasonable. The coordinated design of the inclined conveyor belt 10 and the vibration separation component 31 ensures the smooth flow of materials. The cutting speed, the rotation speed of the toggle rod 50 and the vibration frequency can be adjusted to meet the harvesting needs of different varieties of vegetables.

[0032] Optional, reference Figure 1The vibration separation component 31 includes a vibration plate 310, a vibration motor 311 and a guard plate 312. The vibration plate 310 is obliquely connected to the end of the conveyor belt 10. The vibration plate 310 uses a sieve plate. The vibration motor 311 is fixed on the vibration plate 310, and the guard plate 312 is fixed on both sides of the vibration plate 310.

[0033] The vibration separation assembly 31 provided by the present invention is composed of a vibration plate 310, a vibration motor 311 and a protective plate 312 as a core structure. The vibration plate 310 is obliquely connected to the end of the conveyor belt 10 at an optimal inclination angle of 15°-25°. The inclination angle ensures that the vegetables can slide down naturally by their own weight and the cleaning effect will not be affected by excessive speed. The vibration motor 311 is rigidly fixed to the bottom of the vibration plate 310, generating a high-frequency micro-amplitude vibration of 10-25Hz. Its vibration direction is always perpendicular to the plane of the vibration plate 310, forming a standard throwing motion trajectory. This unique movement mode causes the vegetables to produce continuous bouncing and rolling movements on the plate surface, effectively stripping off the attached soil through mechanical collision and inertia. The vibration plate 310 uses a sieve plate structure. The mesh structure of the sieve plate allows the stripped soil to fall directly through the holes, achieving instant separation. The protective plate 312 is installed along the full length of both sides of the vibration plate 310, with a height of 50-80mm. It is made of elastic polyethylene material, which can prevent the loss of vegetables from popping out and will not hinder the discharge of soil. This design can reduce the impurity content of leafy vegetables and reduce harvest losses, and is more efficient than traditional separation methods.

[0034] Optional, reference Figure 4 , the surface of the sieve plate is wrapped with a polyurethane layer.

[0035] The sieve plate is coated with a 2-3mm thick, wear-resistant polyurethane layer. This design provides a flexible contact surface for the vegetables, reducing mechanical damage. Its high elasticity also enhances vibration transmission, ensuring a more uniform tossing motion. The specially designed polyurethane coating is compression-molded to form a secure bond with the sieve plate base. This maintains the sieve plate's inherent ability to transmit impurities while addressing the problem of surface scratches often caused by metal screens. This structure improves soil removal while minimizing mechanical damage to the vegetables, making it particularly suitable for post-harvest processing of delicate vegetables.

[0036] Optional, reference Figure 4 The sieve plate is divided into an upper sieve plate 3100 and a lower sieve plate 3101 from the middle. The mesh of the upper sieve plate 3100 is 5 mesh, and the mesh of the lower sieve plate 3101 is 20 mesh. Both the upper sieve plate 3100 and the lower sieve plate 3101 are connected to a vibration motor 311. The vibration frequency of the upper sieve plate 3100 is 10Hz, and the vibration frequency of the lower sieve plate 3101 is 20Hz.

[0037] The composite structure consists of an upper sieve plate 3100 and a lower sieve plate 3101. The upper sieve plate 3100 features a large 5-mesh design and 10Hz low-frequency vibration, primarily used to quickly separate large soil particles from vegetables. The lower sieve plate 3101 uses a fine 20-mesh design and 20Hz high-frequency vibration, specifically designed to remove fine attached soil and debris. This graded vibration system improves soil removal through a two-stage process of coarse screening and fine screening. The graded vibration design reduces vegetable damage. The low-frequency vibration of the upper sieve plate 3100 reduces impact, while the high-frequency, micro-amplitude vibration of the lower sieve plate 3101 ensures effective cleaning.

[0038] Optional, reference Figure 1 A plurality of nozzles 3120 are fixed on the guard plate 312 , and the plurality of nozzles 3120 are evenly distributed on the guard plates 312 on both sides.

[0039] The soil cleaning system of the vibrating separation assembly 31 utilizes an innovative synergistic design combining mechanical vibration and hydraulic flushing. Low-pressure spray devices are strategically placed on the guard plates 312 on either side of the vibrating separation assembly 31. Guard plates 312 are stamped from 2mm-thick stainless steel and feature evenly spaced Ø8mm mounting holes, with the spacing adjusted to suit the vegetable variety. Each mounting hole is equipped with an adjustable-angle low-pressure nozzle 3120. This fan-shaped nozzle features an operating pressure of 0.2-0.3 MPa and a flow rate controlled within 0.5 L / min. When installed at a 15° angle to the screen surface, the nozzle 3120 sprays parallel to the direction of material movement, creating a water curtain that covers the entire screen surface. As the vegetables bounce across the vibrating separation assembly 31, the vibration dislodges most of the loose soil, while the jets from the nozzles 3120 specifically flush tightly adhered soil that is difficult to remove with vibration. This synergistic mechanism ensures that vibration provides the primary separation force, while hydraulic pressure provides the fine cleaning, complementing each other. This design improves soil removal from leafy vegetables without damaging or over-watering them.

[0040] Optional, reference Figure 1 and Figure 3 , also includes a toggle assembly 5, the toggle assembly 5 includes a plurality of toggle rods 50 and a mounting bracket 51, the plurality of toggle rods 50 are evenly distributed on the mounting bracket 51, the mounting bracket 51 is rotatably connected to the support frame 4, and the rotation direction of the mounting bracket 51 is the same as the forward direction of the vehicle.

[0041] The toggle rod 50 cooperates with the coordinated action of multiple toggle rods 50 through the rotational movement of the mounting frame 51. The rotation direction of the toggle rod 50 is consistent with the forward direction of the vehicle. This same-direction movement design can not only avoid mechanical damage to the vegetables, but also ensure the uniformity of the cleaning effect. During the cleaning process, the friction generated by the toggle rod 50 and the surface of the vegetables can continuously toggle the vegetables, so that they move smoothly toward the conveyor belt 10. After the conveyor belt 10 receives the vegetables, it transports them to the collection box 11 at the rear through uniform speed operation, realizing the automated process from harvesting to collecting vegetables. The arrangement of multiple toggle rods 50 in this system expands the toggle coverage area, and the design of the rotatable mounting frame 51 makes it easy to adjust the contact force between the toggle rod 50 and the vegetables, ensuring effective cleaning without damaging the surface of the vegetables.

[0042] Optional, reference Figure 3 , multiple toggle rods 50 are connected to the mounting bracket 51 through corresponding springs 52.

[0043] By adding a spring 52 between the toggle rod 50 and the mounting frame 51, the toggle rod 50 can automatically adjust the contact pressure according to the concave and convex shape of the vegetable surface, so as to fit the vegetables. The elastic deformation of the spring 52 not only causes the toggle rod 50 to temporarily retract when encountering greater resistance (such as wrinkled leaves) to avoid damaging the vegetables, but also quickly resets after passing, ensuring that the toggle rod 50 continues to maintain stable friction. This dynamic adaptability significantly improves the transmission efficiency, and is especially suitable for vegetables with uneven surfaces such as leafy vegetables (such as spinach and lettuce). At the same time, the buffering effect of the spring 52 reduces the wear caused by hard collisions of the toggle rod 50 and extends its service life, while the quick reset feature ensures the continuity of the transmission, allowing the system to maintain stable transmission even when operating at high speeds. In addition, the elastic structure is compatible with vegetables of different sizes and hardness, enhancing the versatility of the equipment.

[0044] Optional, reference Figure 2 A collecting box 313 is fixed under the sieve plate, the end of the sieve plate is connected to the collecting box 11, and both sides of the collecting box 313 are connected to the guard plate 312.

[0045] An integrated soil collection solution is employed, with a fixed collection box 313 positioned beneath the sieve plate. The end of the sieve plate is connected to the vegetable collection box 11. Both sides of the collection box 313 are seamlessly connected to the guard plate 312, forming a closed soil handling channel. The vertical drop between the collection box 313 and the sieve plate allows gravity to force soil that falls directly into the collection box 313, effectively preventing it from rebounding onto the sieve plate and causing secondary contamination. The terminal collection box 11 is detachable, facilitating the rapid transfer of cleaned vegetables and the separate collection of vegetables and soil.

[0046] Optional, reference Figure 5The collecting box 313 is divided into three layers: an upper debris layer 3130, a middle filter layer 3131 and a lower water storage layer 3132.

[0047] A filtration structure is installed within the collection tank 313. The tank is welded from 54 stainless steel and is divided into three layers: an upper debris layer 3130, a middle filter layer 3131, and a lower water storage layer 3132. The middle filter layer 3131 consists of, from top to bottom: a 20-mesh stainless steel coarse filter to trap larger particles, a 100-mesh nylon fine filter to filter fine particles, and an activated carbon adsorption layer at the bottom to remove colloidal substances from the water. When wastewater containing soil enters the collection tank 313, it is distributed over the filter screens. Gravity forces the water to penetrate the filter screens and enter the water storage tank, effectively trapping the solid soil. The filtered water is then piped to the front flushing nozzles 3120 for recycling. The entire filtration system features a modular design, and the filter screen components can be quickly removed and cleaned through a sidewall access door, ensuring long-term clogging resistance. The effective recycling of flushing water significantly reduces water consumption while preventing environmental pollution from wastewater discharge, achieving a closed-loop management system for clean production.

[0048] Optional, reference Figure 1 , fenders 101 are fixed on both sides of the conveyor belt 10.

[0049] Mud guards 101 are provided at both ends of the conveyor belt 10 to prevent the vegetables from falling during transportation and to prevent splashing soil from entering the transmission mechanism. The rebounding soil particles can be redirected to the center area of ​​the conveyor belt 10; the protective eaves extending from the bottom can completely cover the rotating shaft 21 of the conveyor belt 10, eliminating the risk of mechanical failure caused by soil getting stuck in the bearings, reducing the mechanical failure rate, and improving the complete delivery rate of vegetables. The above inventions are only a few specific embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A small intelligent leafy vegetable harvester, characterized in that: include: A transport component (1), a cutting component (2), a soil removal component (3) and a support frame (4); The cutting component (2) comprises: a cutting knife (20) and a rotating shaft (21); the cutting knife (20) is rotatably connected to the front end of the supporting frame (4) via the rotating shaft (21); the blade of the cutting knife (20) faces the vegetables; The transport component (1) comprises: a conveyor belt (10) and a collection box (11); the conveyor belt (10) is obliquely installed in the middle of the support frame (4) and is located behind the cutting knife (20); the conveyor belt (10) is inclined upward; The soil removal component (3) comprises: a vibration separation component (31), the vibration separation component (31) is obliquely connected to the end of the conveyor belt (10), the vibration separation component (31) is inclined downward, the end of the vibration separation component (31) is fixedly connected to a collection box (11), and the collection port of the collection box (11) is lower than the vibration separation component (31).

2. The small intelligent leafy vegetable harvester according to claim 1, characterized in that: The vibration separation component (31) includes a vibration plate (310), a vibration motor (311) and a guard plate (312); the vibration plate (310) is obliquely connected to the end of the conveyor belt (10); the vibration plate (310) uses a sieve plate; the vibration motor (311) is fixed on the vibration plate (310); and the guard plate (312) is fixed on both sides of the vibration plate (310).

3. The small intelligent leafy vegetable harvester according to claim 4, characterized in that: The surface of the sieve plate is wrapped with a polyurethane layer.

4. The small intelligent leafy vegetable harvester according to claim 5, characterized in that: The sieve plate is divided into an upper sieve plate (3100) and a lower sieve plate (3101) from the middle. The mesh size of the upper sieve plate (3100) is 5 mesh, and the mesh size of the lower sieve plate (3101) is 20 mesh. The upper sieve plate (3100) and the lower sieve plate (3101) are both connected to a vibration motor (311). The vibration frequency of the upper sieve plate (3100) is 10 Hz, and the vibration frequency of the lower sieve plate (3101) is 20 Hz.

5. The small intelligent leafy vegetable harvester according to claim 4, characterized in that: A plurality of nozzles (3120) are fixed on the guard plate (312), and the plurality of nozzles (3120) are evenly distributed on the guard plates (312) on both sides.

6. The small intelligent leafy vegetable harvester according to claim 1, characterized in that: The vehicle further comprises a toggle assembly (5), wherein the toggle assembly (5) comprises a plurality of toggle rods (50) and a mounting frame (51), wherein the plurality of toggle rods (50) are evenly distributed on the mounting frame (51), and the mounting frame (51) is rotatably connected to the support frame (4), and the rotation direction of the mounting frame (51) is the same as the forward direction of the vehicle.

7. The small intelligent leafy vegetable harvester according to claim 2, characterized in that: The plurality of toggle rods (50) are connected to the mounting frame (51) via corresponding springs (52).

8. The small intelligent leafy vegetable harvester according to claim 4, characterized in that: A collection box (313) is fixed below the vibration plate (310), a collection box (11) is connected to the end of the sieve plate, and both sides of the collection box (313) are connected to the guard plate (312).

9. The small intelligent leafy vegetable harvester according to claim 8, characterized in that: The debris collecting box (313) is divided into three layers: an upper debris layer (3130), a middle filter layer (3131) and a lower water storage layer (3132).

10. The small intelligent leafy vegetable harvester according to claim 1, characterized in that: Mudguards (101) are fixed on both sides of the conveyor belt (10).

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