Sweet potato harvester

Abstract

The utility model discloses a sweet potato harvester which comprises a rack, a digging shovel is obliquely arranged at the bottom of one end of the rack, wheels are arranged at the bottom of the other end of the rack, a conveying assembly is obliquely arranged in the rack, a scraping and sweeping assembly is arranged below the top end of the conveying assembly, and guide plates are obliquely arranged at the top ends of the conveying assembly and the scraping and sweeping assembly. The two sides of the material guiding plate are fixedly connected to the rack, the scraping and sweeping assembly is fixedly connected to the side wall of one end of the rack, the soil screening assembly is arranged below the scraping and sweeping assembly and fixedly connected to the side wall of the rack, and the collecting vehicle is arranged at the end, away from the rack, of the soil screening assembly and fixedly connected to the bottom end of the rack. The conveying assembly is used for conveying sweet potatoes to the top of the rack, the scraping and sweeping assembly is used for separating and removing soil attached to the surfaces of the sweet potatoes, and the soil screening assembly is used for screening soil generated in the scraping and sweeping assembly. The sweet potato cleaning device can scrape and remove soil adhered to the surfaces of sweet potatoes, so that the later cleaning workload is reduced, and the transportation cost is reduced.

Description

Technical Field

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

[0002] Sweet potatoes are a common crop rich in protein, starch, pectin, cellulose, amino acids, vitamins, and various minerals, earning them a reputation as a "longevity food." With a sugar content of 15% to 20%, sweet potatoes offer benefits such as anti-cancer, heart protection, prevention of emphysema and diabetes, and weight loss. Currently, sweet potato cultivation is trending towards large-scale production. Highly automated sweet potato harvesting machinery is gradually being introduced during the sweet potato harvesting process.

[0003] Sweet potatoes will inevitably carry soil during the excavation process, and it is necessary to separate it from the sweet potatoes as much as possible to avoid soil loss and the subsequent cleaning workload. Existing sweet potato harvesters can only remove the dug soil, and the effect of separating the soil sticking to the sweet potatoes is poor. For example, the utility model patent with application number 202321080840.4 discloses a sweet potato harvester with a screening mechanism. Although the screening mechanism can screen out the soil and poorly grown sweet potatoes, it can achieve the screening of qualified sweet potatoes.

[0004] However, this utility model patent cannot further separate and screen the sticky soil on the sweet potatoes when harvesting them, thereby increasing the subsequent cleaning workload and transportation costs.

[0005] Therefore, it is necessary to develop a sweet potato harvester for the above-mentioned defects. Utility Model Content

[0006] The utility model aims to provide a sweet potato harvester which can scrape and remove the soil adhered to the surface of the sweet potatoes, thereby reducing the workload of later cleaning and lowering the transportation cost.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The utility model discloses a sweet potato harvester, comprising a frame, a digging shovel is obliquely provided at the bottom of one end of the frame, a wheel is provided at the bottom of the other end of the frame, a conveying assembly is obliquely provided in the frame, a scraping assembly is provided below the top of the conveying assembly, a material guide plate is obliquely provided on the conveying assembly and the top of the scraping assembly, both sides of the guide plate are fixedly connected to the frame, the scraping assembly is fixedly connected to the side wall of one end of the frame, a soil screening assembly is provided below the scraping assembly, the soil screening assembly is fixedly connected to the side wall of the frame, a collecting cart is provided at one end of the soil screening assembly away from the frame, and the collecting cart is fixedly connected to the bottom end of the frame; the conveying assembly is used to convey the sweet potatoes to the top of the frame, the scraping assembly is used to separate and remove the soil adhered to the surface of the sweet potatoes, and the soil screening assembly is used to screen the soil generated in the scraping assembly.

[0009] Furthermore, the conveying assembly includes two sets of sprockets, each set of sprockets has two, and the two sets of sprockets are rotatably connected to the two side walls of the top and bottom ends of the frame through rotating shafts, and chains are transmission-connected between the two sprockets on the same side of the frame, and a number of evenly distributed conveying rods are fixedly connected between the two chains; one end of the rotating shaft between the sprockets at the top of the frame is fixedly connected to the first synchronous pulley, and the top of the frame is horizontally fixedly connected to the first mounting plate, and the first motor is installed on the first mounting plate, and the output end of the first motor is connected to the second synchronous pulley through a rotating shaft, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt transmission.

[0010] Furthermore, the scraping assembly includes an installation box, which is opened at the top and bottom, and a first separating roller is rotatably connected to the middle position of the inner walls on both sides of the installation box, and two second separating rollers are rotatably connected to the inner walls of the installation box above and below the first separating roller; the first separating roller and the second separating roller are arranged in parallel and bristles are fixedly connected to the outer walls, and the spacing between adjacent second separating rollers is the same; a driving unit is provided on the outer wall of the installation box, and the driving unit is used to drive the first separating roller and the second separating roller to rotate.

[0011] Furthermore, the driving unit includes a second motor, which is fixedly connected to the outer wall of the mounting box, and the output end of the second motor is fixedly connected to the rotating shaft at one end of the first separating roller, and the rotating shaft at the other end of the first separating roller is fixedly connected to a first gear, and the rotating shaft of each second separating roller is fixedly connected to a second gear that meshes with the first gear.

[0012] Furthermore, the soil screening assembly includes two second mounting plates, which are arranged at an angle and have one end fixedly connected to both sides of the frame below the mounting box, and a screen is provided on the second mounting plates.

[0013] Furthermore, a vibrator is fixedly connected to the bottom surface of the screen, and guide columns are fixedly connected to both ends of each second mounting plate. A spring is provided on the outer sleeve of the guide column, and one end of the spring is fixedly connected to the top surface of the second mounting plate; the guide column passes through the mounting frame of the screen and is slidably connected to it, and the top of the guide column is fixedly connected to a limit plate.

[0014] Furthermore, a connecting rod is fixedly connected to the frame above the excavating shovel, and a connecting plate connected to a traction device is fixedly connected to the top of the connecting rod.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are:

[0016] The utility model uses an inclined conveying component to convey the sweet potatoes dug out by the digging shovel to the top of the frame, and then uses a scraping component to scrape and remove the sticky soil attached to the surface of the sweet potatoes. The soil screening component arranged below the scraping component further screens the scraped soil, thereby reducing the subsequent cleaning workload and lowering the transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a side structural diagram of the sweet potato receiving machine of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the sweet potato harvester from a top view of the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of the scraping assembly of the present invention;

[0021] Figure 4 for Figure 1 A partial enlarged view of part A.

[0022] Explanation of the accompanying drawings: 1. Frame; 2. Excavating shovel; 3. Wheel; 4. Guide plate; 5. Sprocket; 6. Chain; 7. Conveying rod; 8. First synchronous pulley; 9. First mounting plate; 10. First motor; 11. Second synchronous pulley; 12. Synchronous belt; 13. Mounting box; 14. First separating roller; 15. Second separating roller; 16. Brush; 17. Second motor; 18. First gear; 19. Second gear; 20. Second mounting plate; 21. Screen; 22. Vibrator; 23. Guide column; 24. Spring; 25. Limiting plate; 26. Connecting rod; 27. Connecting plate; 28. Collecting vehicle; 29. ​​Shaking wheel. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a sweet potato harvester, which can scrape and remove the soil adhered to the surface of the sweet potato, thereby reducing the later cleaning workload and lowering the transportation cost.

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In one embodiment, Figures 1-2 As shown, it includes a frame 1, a digging shovel 2 is inclined at the bottom of one end of the frame 1 for digging sweet potatoes, a wheel 3 is provided at the bottom of the other end of the frame 1 for supporting and moving the machine, a conveying assembly is inclined inside the frame 1, a scraping assembly is provided below the top of the conveying assembly, a material guide plate 4 is inclined at the top of the conveying assembly and the scraping assembly, both sides of the material guide plate 4 are fixedly connected to the frame 1, the scraping assembly is fixedly connected to the side wall of one end of the frame 1, a soil screening assembly is provided below the scraping assembly, the soil screening assembly is fixedly connected to the side wall of the frame 1, a collecting vehicle 28 is provided at the end of the soil screening assembly away from the frame 1, and the collecting vehicle 28 is fixedly connected to the bottom end of the frame 1; the conveying assembly is used to transport the sweet potatoes to the top of the frame 1, the scraping assembly is used to separate and remove the soil adhered to the surface of the sweet potatoes, and the soil screening assembly is used to screen out the soil generated in the scraping assembly.

[0027] In one embodiment, Figure 1 and Figure 2 As shown, the conveying assembly includes two groups of sprockets 5, each group of sprockets 5 has two sprockets, and the two groups of sprockets 5 are rotatably connected to the two side walls of the top and bottom ends of the frame 1 through rotating shafts. A chain 6 is transmission-connected between the two sprockets 5 on the same side of the frame 1, and a number of evenly distributed conveying rods 7 are fixedly connected between the two chains 6 to form a continuous conveyor belt; one end of the rotating shaft between the sprockets 5 at the top of the frame 1 is fixedly connected to a first synchronous pulley 8, a first mounting plate 9 is horizontally fixedly connected to the top of the frame 1, and a first motor 10 is installed on the first mounting plate 9, and the output end of the first motor 10 is transmission-connected to the second synchronous pulley 11 through a rotating shaft, and the first synchronous pulley 8 and the second synchronous pulley 11 are transmission-connected by a synchronous belt 12.

[0028] The second synchronous pulley 11 is driven to rotate by the rotation of the first motor 10, and the first synchronous pulley 8 is driven to rotate by the transmission of the synchronous belt 12, thereby driving the two sprockets 5 coaxial with the first synchronous pulley 8 to rotate, and the other two sprockets 5 are driven to rotate by the action of the chain 6, and finally the conveyor belt formed by the conveying rod 7 is driven to move, thereby achieving the purpose of conveying the sweet potatoes from the bottom to the top of the frame 1.

[0029] In one embodiment, Figure 1 and Figure 2 As shown, two shaking wheels 29 are connected to the two sides of the frame 1 between the two sets of sprockets 5 through the rotation of the shaft. The shaking wheels 29 drive the conveyor belt composed of the conveyor rods 7 to shake, thereby removing most of the soil and impurities between the sweet potatoes. This is a prior art and will not be described in detail here.

[0030] In one embodiment, Figure 1 、 Figure 3 and Figure 4 As shown, the scraping assembly includes an installation box 13, which is opened at the top and bottom, and a first separating roller 14 is rotatably connected to the middle position of the inner walls on both sides of the installation box 13, and two second separating rollers 15 are rotatably connected to the inner walls of the installation box 13 above and below the first separating roller 14; the first separating roller 14 and the second separating roller 15 are arranged in parallel and bristles 16 are fixedly connected to the outer walls, and the distance between adjacent second separating rollers 15 is the same; a driving unit is provided on the outer wall of the installation box 13, and the driving unit is used to drive the first separating roller 14 and the second separating roller 15 to rotate.

[0031] The first separating roller 14 and the second separating roller 15 are driven to rotate by a driving unit, and the sweet potatoes entering the mounting box 13 are scraped by the interaction between the first separating roller 14 and the second separating roller 15 and the bristles 16, thereby removing the soil attached and sticky on the surface of the sweet potatoes.

[0032] Specifically, the drive unit includes a second motor 17, which is fixedly connected to the outer wall of the mounting box 13. The output end of the second motor 17 is fixedly connected to the rotating shaft at one end of the first separation roller 14. The rotating shaft at the other end of the first separation roller 14 is fixedly connected to a first gear 18. The rotating shaft of each second separation roller 15 is fixedly connected to a second gear 19 that meshes with the first gear 18.

[0033] Specifically, the soil screening assembly includes two second mounting plates 20 , which are tilted and fixedly connected at one end to both sides of the frame 1 below the mounting box 13 , and a screen 21 is provided on the second mounting plates 20 .

[0034] Specifically, a vibrator 22 is fixedly connected to the bottom surface of the screen 21, and guide columns 23 are fixedly connected at both ends of each second mounting plate 20. A spring 24 is provided on the outer sleeve of the guide column 23, and one end of the spring 24 is fixedly connected to the top surface of the second mounting plate 20; the guide column 23 passes through the mounting frame of the screen 21 and is slidably connected to it, and a limiting disk 25 is fixedly connected to the top of the guide column 23.

[0035] The screen 21 is used to remove dirt dropped during the scraping process, and the vibrator 22 is used to improve screening efficiency. The vibrator 22 is specifically a screen undersize vibrator model XH8211UMFUV8 from Taizhou Hongyun Electromechanical Co., Ltd. A spring 24 is provided between the screen 21 and the second mounting plate 20 to cushion the force exerted by the vibrator 22 on the second mounting plate 20, reducing vibration noise while ensuring the vibration amplitude of the screen 21 and the screening effect of the screen 21.

[0036] In one embodiment, Figure 1 and Figure 2 As shown, a connecting rod 26 is fixedly connected to the frame 1 above the excavating shovel 2, and a connecting plate 27 connected to the traction equipment is fixedly connected to the top of the connecting rod 26 to realize the movement of the entire machine.

[0037] Working Principle of the Utility Model: When in use, the sweet potato harvester is connected to a traction device via the connecting plate 27 at the top of the connecting rod 26. The traction device drives the sweet potato harvester forward, and the digging shovel 2 cuts into the soil as the machine advances, digging out the sweet potatoes. During the digging process, some soil and impurities are excavated along with the sweet potatoes. At this point, the sweet potatoes are transported to a higher position via the inclined conveyor assembly within the frame 1. Simultaneously, the conveyor belt formed by the conveyor rod 7 is vibrated by the shaking wheel 29 during transportation, removing most of the soil and impurities between the sweet potatoes. The first motor 10 rotates the sprocket 5 via the synchronous belt 12, which in turn drives the conveyor belt, transporting the sweet potatoes from the bottom to the top of the frame 1. When the sweet potatoes reach the top, they pass through the guide plate 4 and enter the scraping assembly. The second motor 17 drives the first separating roller 14, which, through the meshing of the first gear 18 and the second gear 19, drives the synchronous rotation of all the second separating rollers 15. As the sweet potatoes pass between the first and second separating rollers 14, 15, the bristles 16 scrape the surface of the sweet potatoes, removing any adhering or sticky soil. After being scraped, the sweet potatoes continue to fall, and the soil removed during the scraping process enters the soil screening assembly. Vibrator 22 vibrates screen 21, improving screening efficiency and removing the soil. The removed soil falls through screen 21 into the sweet potato field below, while the sweet potatoes continue to fall to the collection vehicle 28.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A sweet potato harvester, comprising a frame (1), a digging shovel (2) being provided at an inclined bottom end of one end of the frame (1), and a wheel (3) being provided at the bottom end of the other end of the frame (1), characterized in that: A conveying assembly is obliquely arranged in the frame (1), a scraping assembly is arranged below the top of the conveying assembly, a material guide plate (4) is obliquely arranged on the top of the conveying assembly and the scraping assembly, both sides of the material guide plate (4) are fixedly connected to the frame (1), the scraping assembly is fixedly connected to the side wall of one end of the frame (1), a soil screening assembly is arranged below the scraping assembly, the soil screening assembly is fixedly connected to the side wall of the frame (1), a collecting vehicle (28) is arranged at the end of the soil screening assembly away from the frame (1), and the collecting vehicle (28) is fixedly connected to the bottom of the frame (1); the conveying assembly is used to convey the sweet potatoes to the top of the frame (1), the scraping assembly is used to separate and remove the soil adhered to the surface of the sweet potatoes, and the soil screening assembly is used to screen out the soil generated in the scraping assembly.

2. The sweet potato harvester according to claim 1, characterized in that: The conveying assembly comprises two groups of sprockets (5), each group of sprockets (5) has two sprockets, and the two groups of sprockets (5) are respectively connected to the two side walls of the top and bottom ends of the frame (1) through rotating shafts, and a chain (6) is connected between the two sprockets (5) on the same side of the frame (1), and a plurality of evenly distributed conveying rods (7) are fixedly connected between the two chains (6); one end of the rotating shaft between the sprockets (5) at the top of the frame (1) is fixedly connected to a first synchronous pulley (8), and the top of the frame (1) is fixedly connected to a first mounting plate (9), and a first motor (10) is installed on the first mounting plate (9), and the output end of the first motor (10) is connected to a second synchronous pulley (11) through a rotating shaft, and the first synchronous pulley (8) and the second synchronous pulley (11) are connected through a synchronous belt (12).

3. The sweet potato harvester according to claim 1, characterized in that: The scraping assembly comprises an installation box (13), the top and bottom of the installation box (13) are opened, a first separation roller (14) is rotatably connected to the middle position of the inner wall on both sides of the installation box (13), and two second separation rollers (15) are rotatably connected to the inner wall of the installation box (13) above and below the first separation roller (14); the first separation roller (14) and the second separation roller (15) are arranged in parallel and the outer walls of the first separation roller (14) and the second separation roller (15) are fixedly connected with bristles (16), and the spacing between adjacent two second separation rollers (15) is the same; a driving unit is provided on the outer wall of the installation box (13), and the driving unit is used to drive the first separation roller (14) and the second separation roller (15) to rotate.

4. The sweet potato harvester according to claim 3, characterized in that: The driving unit comprises a second motor (17), the second motor (17) being fixedly connected to the outer wall of the installation box (13), the output end of the second motor (17) being fixedly connected to the rotating shaft at one end of the first separating roller (14), the rotating shaft at the other end of the first separating roller (14) being fixedly connected to a first gear (18), and the rotating shaft of each second separating roller (15) being fixedly connected to a second gear (19) meshing with the first gear (18).

5. The sweet potato harvester according to claim 3, characterized in that: The soil screening assembly comprises two second mounting plates (20), the two second mounting plates (20) being arranged obliquely and having one end fixedly connected to two sides of the frame (1) below the mounting box (13), and a screen (21) being arranged on the second mounting plates (20).

6. The sweet potato harvester according to claim 5, characterized in that: The bottom surface of the screen (21) is fixedly connected to a vibrator (22), and both ends of each second mounting plate (20) are fixedly connected to a guide column (23), and a spring (24) is provided on the outer sleeve of the guide column (23), and one end of the spring (24) is fixedly connected to the top surface of the second mounting plate (20); the guide column (23) passes through the mounting frame of the screen (21) and is slidably connected thereto, and the top of the guide column (23) is fixedly connected to a limit plate (25).

7. The sweet potato harvester according to claim 1, characterized in that: A connecting rod (26) is fixedly connected to the frame (1) above the digging shovel (2), and a connecting plate (27) for connecting a traction device is fixedly connected to the top of the connecting rod (26).

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