A separating device and potato harvesting apparatus for facilitating separation of soil from potatoes

Abstract

The application provides a separation device for facilitating separation of potatoes and soil and a potato harvesting device. The separation device for facilitating separation of potatoes and soil is provided with a first roller assembly and a second roller assembly. The first roller assembly comprises first roller units and second roller units which are alternately arranged at intervals. The second roller assembly comprises a plurality of second roller units which are arranged at intervals. The plurality of second roller units are arranged in a low-high-low-high arrangement. After the excavated potatoes pass through the first roller assembly and the second roller assembly, the first roller units and the second roller units can peel off the soil attached to the surface of the potatoes, so that the soil is separated from the potatoes. The separated soil falls from the gaps between the roller units to the ground, and pure potatoes are obtained.

Description

Technical Field

[0001] This application relates to the field of crop harvesting equipment technology, and in particular to a separation device and potato harvesting equipment that facilitates the separation of potato soil. Background Technology

[0002] Typically, potato harvesting begins with cutting down the exposed vines, followed by harvesting with machinery. Potatoes are usually harvested manually or using potato harvesting equipment.

[0003] When using potato harvesting machinery to dig potatoes, potatoes and soil are excavated together and fed into the machine. Typically, some soil adheres to the surface of the potatoes. In existing technology, after digging, the potatoes are usually conveyed onto a conveyor belt along with the soil and eventually fall to the soil surface. However, the soil adhering to the potato surface and the loose soil excavated along with the potatoes are transported together, resulting in a large amount of soil mixed in with the dug potatoes. Therefore, subsequent separation of the soil and potatoes is necessary. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a separation device and potato harvesting equipment that facilitates the separation of potatoes from soil.

[0005] A first aspect of this application provides a separation device for facilitating the separation of potato soil, characterized in that the separation device includes a first roller assembly and a second roller assembly;

[0006] Along the potato conveying direction, the second roller assembly is disposed at the rear end of the first roller assembly;

[0007] The first roller assembly includes a first roller unit and a second roller unit arranged alternately at intervals; the height of the first roller unit and the second roller unit relative to the horizontal plane increases sequentially along the potato conveying direction;

[0008] The second roller assembly includes a plurality of second roller units arranged at intervals, and the center lines of the plurality of second roller units are arranged in a staggered pattern of low, high, low, high distances from the horizontal plane.

[0009] In some embodiments of this application, the surface of the first roller unit is provided with a first protrusion extending along the axial direction of the first roller unit, and a plurality of the first protrusions are arranged circumferentially along the first roller unit.

[0010] In some embodiments of this application, a second protrusion is provided on the surface of the second roller unit, and the second protrusion extends spirally along the axial direction of the second roller unit.

[0011] In some embodiments of this application, a third roller assembly and a fourth roller assembly are also included; the third roller assembly is disposed below the second roller assembly; and the fourth roller assembly is disposed below the third roller assembly.

[0012] In some embodiments of this application, the fourth roller assembly includes a plurality of fourth roller units arranged at intervals, and a fourth protrusion is provided on the surface of the fourth roller unit, the fourth protrusion being conical.

[0013] In some embodiments of this application, the third roller assembly includes spaced-apart third roller units, the line connecting the axis of the third roller unit and the axis of the fourth roller unit being perpendicular to the potato conveying direction; the surface of the third roller unit is provided with third protrusions arranged spaced along the circumference of the third roller unit, the third protrusions extending along the axial direction of the third roller unit.

[0014] A second aspect of this application provides a potato harvesting device, including the aforementioned separating device and frame, as well as a digging shovel assembly, a conveying device, and a collecting device mounted on the frame; the digging shovel assembly is located at the front end of the separating device, the conveying device is located at the rear end of the separating device, and the collecting device is located at the rear end of the conveying device.

[0015] In some embodiments of this application, the digging shovel assembly includes a digging shovel, a connecting fixing base, and a first vibration component. The digging shovel and the first vibration component are respectively disposed on the connecting fixing base. When the potato and soil cover or leave the first vibration component, the first vibration component vibrates, causing the soil to detach from the potato and fall out from the gap of the first vibration component.

[0016] In some embodiments of this application, the first vibration assembly includes a first mounting shaft, on which a plurality of first vibration units are sleeved at intervals. Each first vibration unit includes a symmetrically arranged first connecting plate and a vibration plate disposed in the middle of the first connecting plate.

[0017] In some embodiments of this application, the conveying device includes an upper conveying component and a lower conveying component. Along the conveying direction of the potatoes, the upper conveying component is disposed at the rear end of the second roller assembly, and the lower conveying component is disposed at the rear end of the fourth roller assembly. The upper conveying component is used to convey first-level potatoes, and the lower conveying component is used to convey second-level potatoes.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects: The separation device for easy separation of potatoes and soil in this application is provided with a first roller assembly and a second roller assembly. The first roller assembly includes first roller units and second roller units arranged alternately at intervals; the second roller assembly includes multiple second roller units arranged alternately, and the multiple second roller units adopt a low-high-low-high arrangement. In this way, after the excavated potatoes pass through the first roller assembly and the second roller assembly, the first roller units and the second roller units can peel off the soil attached to the surface of the potatoes, so that the soil is separated from the potatoes. The separated soil falls to the ground from the gaps between the roller units, and pure potatoes are obtained.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this document. Attached Figure Description

[0020] The accompanying drawings, which form part of this document, are used to provide a further understanding of the document. The illustrative embodiments and descriptions herein are used to explain the document and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a separation device provided in an exemplary embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the first angle structure of the separation device provided in another exemplary embodiment of this application;

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 yes Figure 2 Enlarged view at point B in the middle;

[0025] Figure 5 This is a second-angle structural schematic diagram of the separation device provided in another exemplary embodiment of this application;

[0026] Figure 6 This is a front view of a separation device provided in another exemplary embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the structure of a potato harvesting device that facilitates the separation of potatoes from soil, provided in an exemplary embodiment of this application, from a first angle.

[0028] Figure 8 This is a schematic diagram of the structure of a potato harvesting device that facilitates the separation of potatoes from soil, provided in an exemplary embodiment of this application, from a second angle.

[0029] Figure 9This is a top view of a potato harvesting device that facilitates the separation of potatoes from soil, provided in an exemplary embodiment of this application;

[0030] Figure 10 This is a schematic diagram of the first angle structure of the excavator shovel assembly provided in an exemplary embodiment of this application;

[0031] Figure 11 This is a schematic diagram of the second angle structure of the excavator shovel assembly provided in an exemplary embodiment of this application;

[0032] Figure 12 This is a schematic diagram of the hidden part of the frame of a potato harvesting device that facilitates the separation of potatoes from soil, provided in an exemplary embodiment of this application.

[0033] In the picture:

[0034] 50. Separating device; 501. First roller assembly; 5011. First roller unit; 5011a. First protrusion; 5012. Second roller unit; 5012a. Second protrusion; 502. Second roller assembly; 503. Third roller assembly; 5031. Third roller unit; 5032. Third protrusion; 504. Fourth roller assembly; 5041. Fourth roller unit; 5042. Fourth protrusion;

[0035] 10. Rack; 20. Gearbox;

[0036] 40. Excavator shovel assembly; 401. Excavator shovel; 402. Connecting mounting base; 403. First vibration assembly; 4031. Vibrating plate; 4032. First mounting shaft; 4033. First connecting plate;

[0037] 60. Conveying device; 601. Lower conveying assembly; 602. Upper conveying assembly; 70. Collection device; 701. Guide channel; 702. Potato collecting plate; 80. Depression wheel. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0039] Typically, potato harvesting begins with cutting down the exposed vines, followed by harvesting with machinery. Potatoes are usually harvested manually or using potato harvesting equipment.

[0040] When using potato harvesting machinery to dig potatoes, potatoes and soil are excavated together and fed into the digging tool. Typically, some soil adheres to the surface of the potatoes. In existing technology, after digging, the potatoes are usually conveyed onto a conveyor belt along with the soil and eventually fall to the soil surface. However, the soil adhering to the potato surface and the loose soil excavated along with the potatoes are transported together, resulting in a large amount of soil mixed in with the dug potatoes. Therefore, subsequent separation of the soil and potatoes is necessary.

[0041] Based on this, an exemplary embodiment of this application provides a separation device for facilitating the separation of potatoes from soil. The device includes a first roller assembly and a second roller assembly. The first roller assembly includes first roller units and second roller units arranged alternately at intervals. The second roller assembly includes multiple second roller units arranged at intervals, and the multiple second roller units are arranged in a low-high-low-high pattern. In this way, after the excavated potatoes pass through the first roller assembly and the second roller assembly, the soil attached to the surface of the potatoes can be removed, causing the soil to separate from the potatoes. The removed soil falls to the ground through the gaps between the roller units, resulting in pure potatoes.

[0042] An exemplary embodiment of this application provides a separation device 50 for facilitating the separation of potato soil, such as... Figure 1 and 3 As shown, the separation device 50 includes a first roller assembly 501 and a second roller assembly 502; wherein, along the potato conveying direction, the second roller assembly 502 is disposed at the rear end of the first roller assembly 501; the dug potatoes are thus separated from the soil by passing through the first roller assembly 501 and the second roller assembly 502.

[0043] The first roller assembly 501 includes alternating first roller units 5011 and second roller units 5012; the heights of the first roller units 5011 and second roller units 5012 relative to the horizontal plane increase sequentially along the potato conveying direction; the second roller assembly 502 includes multiple alternating second roller units 5012, with the center lines of the multiple second roller units 5012 arranged in a staggered pattern of low, high, low, high. Thus, after the excavated potatoes pass through the first roller assembly 501 and the second roller assembly 502, the first roller units 5011 and second roller units 5012 can peel off the soil adhering to the potato surface, separating the soil from the potato. The separated soil falls to the ground through the gaps between the roller units, resulting in clean potatoes.

[0044] In one embodiment, to prevent small potatoes from falling through the gap between the first roller unit 5011 and the second roller unit 5012, and to allow small soil or clods to fall, the gap between the first roller unit 5011 and the second roller unit 5012 is 20 mm. The height of the first roller unit 5011 and the second roller unit 5012 relative to the horizontal plane increases sequentially along the potato conveying direction; at this time, after being conveyed by the first roller unit 5011 and the second roller unit 5012, soil or clods smaller than 20 mm in size in the potato and soil mixture will fall to the ground through the gap between the first roller unit 5011 and the second roller unit 5012. As shown in the figure, along the potato conveying direction, the height of the first roller assembly 501 relative to the ground gradually increases, showing an overall upward trend. Preferably, the angle between the first roller assembly 501 and the horizontal plane is 15° to 20°. This helps the potatoes to be conveyed upward along the first roller assembly 501, while preventing the potatoes and soil from sliding down and accumulating due to an excessively large angle.

[0045] In one embodiment, such as Figure 2 and 3 As shown, the surface of the first roller unit 5011 is provided with a first protrusion 5011a extending along the axial direction of the first roller unit 5011. A plurality of first protrusions 5011a are arranged circumferentially along the first roller unit 5011, so that the surface of the first roller unit 5011 forms a wavy uneven surface, which facilitates the separation of the mixture of soil and potatoes. The wavy surface of the first roller unit 5011 helps to push the potatoes to move on the first roller unit 5011, while the uneven surface can promote the separation between the soil and potatoes.

[0046] Continue to refer to Figure 3The second roller unit 5012 has a second protrusion 5012a on its surface. The second protrusion 5012a extends spirally along the axial direction of the second roller unit 5012, making the surface of the second roller unit 5012 spiral-shaped. This facilitates the separation of potatoes from soil and smaller objects such as potato roots and weeds. The spiral surface also promotes soil discharge when the second roller unit 5012 rolls.

[0047] like Figure 5 As shown, the first roller assembly 501 includes alternating first roller units 5011 and second roller units 5012. The surfaces of the alternating first roller units 5011 and second roller units 5012 provide different contact patterns for the potato and soil mixture, which can reduce damage to the potatoes during separation and transportation, keeping the potatoes intact. Simultaneously, it allows the soil to separate from the potatoes, with fine soil particles falling through the gaps between the first roller units 5011 and second roller units 5012, resulting in a mixture of potatoes and soil clumps.

[0048] like Figure 1 and 2 As shown, the second roller assembly 502 includes a plurality of second roller units 5012 arranged at intervals. Preferably, the gap between the plurality of second roller units 5012 is 50mm. After the mixture of potatoes and soil obtained after separation by the first roller assembly 501 enters the second roller assembly 502, the second-level potatoes and soil with a size smaller than 50mm will fall from the gap between the second roller units 5012 onto the fourth roller assembly 504, while the first-level potatoes with a size larger than 50mm remain on the second roller assembly 502 and are conveyed backward by the second roller assembly 502 to the conveying device 60.

[0049] The second roller assembly 502 is entirely composed of second roller units 5012, and the second roller units 5012 are arranged at different heights, as shown in the figure. Along the potato conveying direction, the distance between the center line of each second roller unit 5012 and the horizontal plane is arranged in a low-high-low-high pattern. Thus, during potato conveying, the potential energy difference generated by the varying heights of the rollers further separates the soil from the potato surface, allowing the soil to fall to the ground through the gaps between the second roller units 5012. Simultaneously, the spiral surface of the second roller unit 5012 facilitates soil discharge during rolling, preventing damage to the potatoes.

[0050] like Figures 4 to 6As shown, the separation device 50 also includes a third roller assembly 503 and a fourth roller assembly 504; the third roller assembly 503 is located below the second roller assembly 502; and the fourth roller assembly 504 is located below the third roller assembly 503. Generally, larger potatoes have less soil adhering to their surface than smaller potatoes. Therefore, after being conveyed and separated by the first roller assembly 501 and the second roller assembly 502, the first-stage potatoes directly enter the conveying device 60. The second-stage potatoes, falling from the gap between the second roller units 5012 onto the fourth roller assembly 504, undergo further separation from the soil through the conveying and action of the fourth roller assembly 504.

[0051] In one embodiment, such as Figure 4 As shown, the fourth roller assembly 504 includes multiple fourth roller units 5041 arranged at intervals, with a gap of 22 mm between the multiple fourth roller units 5041. A fourth protrusion 5042, which is conical, is provided on the surface of each fourth roller unit 5041. After a mixture of potatoes and soil clods smaller than mm falls onto the fourth roller assembly 504, the fourth protrusion 5042 further separates the soil from the potatoes, causing the separated soil to fall through the gaps between the fourth roller units 5041. Simultaneously, as the fourth roller units 5041 rotate, the fourth protrusion 5042 breaks up the soil clods, causing the broken soil clods to fall through the gaps between the fourth roller units 5041, thus achieving the separation of potatoes from the soil and soil clods.

[0052] Preferably, the fourth protrusions 5042 are arranged side-by-side along the axial direction of the fourth roller unit 5041, forming a fourth protrusion row. Multiple fourth protrusion rows are arranged circumferentially along the fourth roller unit 5041. The fourth protrusions 5042 can also be arranged irregularly. Thus, as the fourth roller unit 5041 rotates, the fourth protrusions 5042 increase the friction between the potato and the fourth roller unit 5041, facilitating the removal of soil covering the potato surface. This further separates the potato from the soil, and the separated soil falls to the ground through the gap between the two fourth roller units 5041. Along the potato conveying direction, the height of the fourth roller assembly 504 relative to the ground gradually increases, exhibiting an overall upward trend. Preferably, the angle between the fourth roller assembly 504 and the horizontal plane is 15° to 20°. This facilitates the upward conveying of the potato along the fourth roller assembly 504 while preventing the potato and soil from sliding down and accumulating due to an excessively large angle.

[0053] In one embodiment, a third roller assembly 503 is further disposed between the fourth roller assembly 504 and the second roller assembly 502. The third roller assembly 503 is a passive roller. Preferably, the third roller assembly 503 includes spaced-apart third roller units 5031. The line connecting the axis of the third roller unit 5031 and the axis of the fourth roller unit 5041 is perpendicular to the potato conveying direction. The inclination angle between the third roller assembly 503 and the horizontal plane is the same as the inclination angle between the fourth roller assembly 504 and the horizontal plane. Figures 4 to 6 As shown, the third roller assembly 503 includes two third roller units 5031. Each third roller unit 5031 has a third protrusion 5032 arranged circumferentially around its surface. The third protrusion 5032 extends axially along the third roller unit 5031 and has a triangular cross-sectional shape. When potatoes and clods are conveyed along the fourth roller assembly 504, and the potatoes and clods enter between the fourth roller assembly 504 and the third roller assembly 503, the fourth roller assembly 504 and the third roller assembly 503 can simultaneously peel off the soil from the potato surface, further separating the soil from the potato surface.

[0054] An exemplary embodiment of this application provides a potato harvesting device, such as... Figures 7 to 9 As shown, the potato harvesting equipment includes a separating device 50, a frame 10, and a digging shovel assembly 40, a conveying device 60, and a collecting device 70 mounted on the frame 10. The digging shovel assembly 40 is located at the front end of the separating device 50, the conveying device 60 is located at the rear end of the separating device 50, and the collecting device 70 is located at the rear end of the conveying device 60. In this application, "front end" and "rear end" are defined relative to the direction of potato transport; potatoes are transported from the front end of the equipment to the rear end. The digging shovel assembly 40 is used to dig potatoes out of the soil; the separating device 50 is used to separate the potatoes dug out by the digging shovel 40 from the soil; the conveying device 60 is used to transport the separated potatoes to the collecting device 70; and the collecting device 70 is used to collect the potatoes and classify them according to size. A gearbox 20 is installed at the top front end of the frame 10. The gearbox 20 is connected to the power take-off shaft at the rear of the tractor. The tractor provides power to the equipment. During operation, the tractor provides power to the equipment to dig, separate and transport potatoes while dragging the equipment, so that the potatoes are arranged on the soil surface according to grade.

[0055] In one embodiment, the device is powered solely by a tractor, saving space and volume. The tractor's power is first transmitted to the conveying device 60 via the gearbox 20, the first-stage sprocket, and the chain assembly, providing power to the conveying device 60. Then, the power is transmitted to the separating device 50 via the second-stage sprocket and chain assembly, and the rollers of the separating device 50 achieve synchronous transmission through the third-stage sprocket and chain assembly.

[0056] In one embodiment, such as Figures 7 to 9 As shown, the equipment is also equipped with a tillage wheel 80, which is located on both sides of the frame 10, near the collection device 70. The tillage wheel 80 is used to control the tillage depth. By rotating the handle of the depth limiting wheel, the wheel of the tillage wheel 80 can be raised or lowered. By adjusting the height of the tillage wheel 80, the tillage depth can be controlled, and the digging depth can be further adjusted to reduce damage to potatoes during the digging process.

[0057] In one embodiment, such as Figure 10 and 11 As shown, the digging shovel assembly 40 includes a digging shovel 401, a connecting fixing base 402, and a first vibration assembly 403. The digging shovel 401 and the first vibration assembly 403 are respectively mounted on the connecting fixing base 402, which is fixed to the frame 10. Preferably, depending on the burial depth of the potatoes, in order to facilitate potato digging and reduce the resistance experienced by the equipment, the inclination angle between the digging shovel 401 and the horizontal plane is preferably 20° to 25°. At this angle, the digging shovel 401 can tilt downwards into the soil, reducing damage to the potatoes and minimizing digging resistance. If the inclination angle between the digging shovel 401 and the horizontal plane is less than 20°, the shovel 401 will damage a large number of potatoes during digging because it penetrates the soil too shallowly. When the inclination angle between the digging shovel 401 and the horizontal plane is greater than 25°, the shovel 401 penetrates the soil too deeply. During digging, the shovel 401 experiences great resistance, resulting in high energy consumption and increased digging difficulty.

[0058] When the device is in operation, the digging shovel 401 digs the potatoes and soil upwards together, and the mixture of potatoes and soil enters the digging shovel assembly 40. At this time, the surface of the potatoes usually has some soil adhering to it, as well as a certain amount of clods and a large amount of loose soil. The first vibration assembly 403 includes a first mounting shaft 4032, on which a plurality of first vibration units are sleeved. The first vibration unit includes a symmetrically arranged first connecting plate 4033 and a vibration plate 4031 disposed in the middle of the first connecting plate 4033. Preferably, the connecting fixing seat 402 has several spaced mounting grooves extending along the width direction of the connecting fixing seat 402. The first connecting plate 4033 is snapped into the mounting groove and fixedly connected to the connecting fixing seat 402. The vibrating plate 4031 includes a connecting part and a vibrating part. Two connecting parts are sleeved on the first mounting shaft 4032. The top of the connecting part is fixedly connected to the bottom of the digging shovel 401. The vibrating part is fixedly connected in the middle of the two connecting parts. Thus, when the mixture of potatoes and soil presses against the vibrating part and leaves the vibrating part, the vibrating part will vibrate under pressure and without pressure. Since the vibrating parts are spaced apart, before the mixture of potatoes and soil enters the separation device 50, the vibrating part will vibrate the mixture of potatoes and soil, making the soil on the surface of the potatoes loose, and at the same time, making some of the loose soil fall from the gaps between the vibrating parts to the ground surface, so as to achieve the purpose of preliminary separation of the mixture of potatoes and soil.

[0059] like Figures 7 to 9 As shown, the first roller assembly is disposed at the rear end of the digging shovel assembly 40 and is spaced apart from the digging shovel assembly 40; the second roller assembly 502 is disposed at the rear end of the first roller assembly 501 and is spaced apart from the first roller assembly 501; the potato and soil mixture is separated and screened by the first roller assembly 501 to obtain first-grade potatoes; the potato and soil mixture is separated and screened by the second roller assembly 502 to obtain second-grade potatoes.

[0060] There is resistance when digging up the mixture of potatoes and soil. In traditional potato harvesters, when the digging shovel 401 digs up the potato and soil mixture, the potatoes and soil mixture are fed onto the conveyor belt together. During the conveyor belt transport process, the soil rolls down along the conveyor belt to the front end. At this time, the soil accumulates at the front end of the conveyor belt, causing the conveyor belt to experience greater resistance. The friction between the moving mechanism that drives the conveyor belt to rotate, such as the chain, and the soil is very large, resulting in great resistance to the moving mechanism that drives the conveyor belt to rotate. This leads to high energy consumption of the equipment. In severe cases, it may cause the equipment to be blocked by soil and unable to operate.

[0061] In the device of this application, after the potato and soil mixture is vibrated by the first vibration component 403, some soil will fall off, and the soil that does not fall off will become loose with the potatoes. Then, the potato and soil mixture enters the first roller assembly 501. The first roller assembly 501 can further separate the potato and soil mixture, while preventing the potato and soil mixture from rolling off and preventing soil accumulation.

[0062] like Figure 12 As shown, the conveying device 60 includes an upper conveying assembly 602 and a lower conveying assembly 601. The upper conveying assembly 602 is located at the rear end of the second roller assembly 502, and the lower conveying assembly 601 is located at the rear end of the fourth roller assembly 504. The upper conveying assembly 602 is used to convey potatoes of the first level, and the lower conveying assembly 601 is used to convey potatoes of the second level. The collecting device 70 includes a guide trough 701 located at the rear end of the upper conveying assembly 602 and a potato collecting plate 702 located at the rear end of the lower conveying assembly 601. The opening of the guide trough 701 faces the width direction of the device to achieve staggered placement of potatoes of the first and second levels.

[0063] The first-grade potatoes, conveyed by the first roller assembly 501 and the second roller assembly 502, enter the upper conveyor assembly 602 and are transported along it to the guide trough 701, where they roll down to the ground. The second-grade potatoes, conveyed by the fourth roller assembly 504, enter the lower conveyor assembly 601 and are transported along it to the rear end of the device, where they are collected by the potato collecting plate 702 and fall to the ground. This process allows the first-grade and second-grade potatoes to be arranged in different locations on the ground, achieving graded harvesting of potatoes.

[0064] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0065] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0066] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, the intent of this application also includes these modifications and variations.

Claims

1. A separation device for facilitating the separation of potato soil, characterized in that, The separation device includes a first roller assembly and a second roller assembly; Along the potato conveying direction, the second roller assembly is disposed at the rear end of the first roller assembly; The first roller assembly includes a first roller unit and a second roller unit arranged alternately at intervals; the height of the first roller unit and the second roller unit relative to the horizontal plane increases sequentially along the potato conveying direction; The second roller assembly includes a plurality of second roller units arranged at intervals, and the center lines of the plurality of second roller units are arranged in a staggered manner with low, high, low and high distances from the horizontal plane; The surface of the first roller unit is provided with a first protrusion extending along the axial direction of the first roller unit, and a plurality of the first protrusions are arranged circumferentially along the first roller unit. The second roller unit has a second protrusion on its surface, and the second protrusion extends spirally along the axial direction of the second roller unit. It also includes a third roller assembly and a fourth roller assembly; the third roller assembly is disposed below the second roller assembly; the fourth roller assembly is disposed below the third roller assembly; The fourth roller assembly includes a plurality of fourth roller units arranged at intervals, and a fourth protrusion is provided on the surface of the fourth roller unit, the fourth protrusion being conical. The third roller assembly includes a third roller unit spaced apart, the line connecting the axis of the third roller unit and the axis of the fourth roller unit being perpendicular to the potato conveying direction; the surface of the third roller unit is provided with third protrusions spaced apart along the circumference of the third roller unit, and the third protrusions extend along the axial direction of the third roller unit.

2. A potato harvesting device, characterized in that, It includes the separation device and frame as described in claim 1, as well as the digging shovel assembly, conveying device, and collection device disposed on the frame; the digging shovel assembly is disposed at the front end of the separation device, the conveying device is disposed at the rear end of the separation device, and the collection device is disposed at the rear end of the conveying device.

3. The potato harvesting equipment according to claim 2, characterized in that, The digging shovel assembly includes a digging shovel, a connecting base, and a first vibration component. The digging shovel and the first vibration component are respectively mounted on the connecting base. When the potato and soil cover or leave the first vibration component, the first vibration component vibrates, causing the soil to detach from the potato and fall out through the gaps in the first vibration component.

4. The potato harvesting equipment according to claim 3, characterized in that, The first vibration assembly includes a first mounting shaft, on which a plurality of first vibration units are arranged at intervals. Each first vibration unit includes a first connecting plate arranged symmetrically and a vibration plate disposed in the middle of the first connecting plate.

5. The potato harvesting equipment according to claim 2, characterized in that, The conveying device includes an upper conveying component and a lower conveying component. Along the conveying direction of the potatoes, the upper conveying component is located at the rear end of the second roller assembly, and the lower conveying component is located at the rear end of the fourth roller assembly. The upper conveying component is used to convey the first level of potatoes, and the lower conveying component is used to convey the second level of potatoes.

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