A single-plant harvester for potatoes

Abstract

This invention relates to a single-plant harvester for potatoes, comprising: a frame, a shovel assembly, a conveying assembly, a winding assembly, a vibrating assembly, and a hydraulic motor. The shovel assembly is located at the front end of the frame and is fixedly connected to the frame. The conveying assembly is located behind the shovel assembly. The vibrating assembly drives the conveying assembly to vibrate. The winding assembly is rotatably connected to the frame. The hydraulic motor drives the conveying assembly, the winding assembly, and the vibrating assembly. This invention is used for single-plant harvesting in potato plot breeding, ensuring that individual potatoes are not mixed during harvesting. It is designed with a drip irrigation tape recovery device, which simultaneously winds up the drip irrigation tape while harvesting potatoes. The inner and outer tubes of the winding assembly are retractable, facilitating the removal of the drip irrigation tape wound on the winding plate. It also has a single-plant packaging function, which packages the potatoes produced by a single plant to prevent mixing between plants due to the uncertainty of the oblique throwing motion after landing.

Description

Technical Field

[0001] This invention relates to the field of harvesters, and in particular to a single-plant harvester for potatoes. Background Technology

[0002] Currently, my country's field potato (potato, sweet potato, etc.) harvesting machinery technology is relatively mature, with diverse digging and conveying / separating devices. However, due to the special requirements of potato breeding harvesting, different varieties of potato plants are planted in independent plots each year. To ensure the reliability of the breeding trials, each individual potato plant in each plot must be harvested separately to prevent mixing. Currently, my country lacks harvesting machines specifically designed for breeding, and the recycling rate of drip irrigation tape is low. The current potato breeding harvesting process typically involves manually removing the drip irrigation tape and digging and selecting individual potatoes, which is labor-intensive. Traditional field potato harvesters cannot dig and convey individual potato plants separately. Summary of the Invention

[0003] This invention aims to solve the above-mentioned problems by providing a single-plant potato harvester. It solves the problems that traditional field potato harvesters cannot dig and transport single potato plants separately, the problems that potato harvesters cannot harvest potatoes and roll up drip irrigation tape at the same time, and the problems that potato harvesters cannot package potatoes separately during harvesting.

[0004] A single-plant potato harvester includes: a frame, a shovel assembly, a conveying assembly, a winding assembly, a vibrating assembly, and a hydraulic motor. The shovel assembly is located at the front end of the frame and is fixedly connected to the frame. The conveying assembly is located behind the shovel assembly. The vibrating assembly drives the conveying assembly to vibrate. The winding assembly is rotatably connected to the frame. The hydraulic motor is used to drive the conveying assembly, the winding assembly, and the vibrating assembly.

[0005] Based on the above technical solution, the shovel assembly includes a blade, a blade transition plate, a blade connecting pipe, and a blade fixing pipe. The blade fixing pipe is fixedly connected to the frame, and the front side of the blade fixing pipe is fixedly connected to multiple blade connecting pipes. The front end of the blade connecting pipe is fixedly connected to the blade, and the blade transition plate is located above the blade and rotatably connected to the blade.

[0006] Based on the above technical solution, the conveying assembly includes a conveying chain, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are rotatably connected to the frame. The hydraulic motor drives the drive wheel to rotate through chain transmission. The conveying chain includes a belt and multiple grid units. Each grid unit includes multiple concave grids and straight grids. The number of concave grids and straight grids in each grid unit is equal. The concave grids and straight grids in each grid unit are located at the beginning and end of the grid unit, respectively. Adjacent grid units are connected end to end. All grid units are arranged one by one along the belt. The left and right ends of the concave grids and straight grids are fixedly connected to the belts on the left and right sides, respectively. The belts are connected end to end and are fitted on the outside of the driven wheel.

[0007] The spacing between adjacent grid bars is equal, and the drive wheel has a groove. The groove of the drive wheel contacts the grid bar and drives the grid bar to move.

[0008] It also includes an auxiliary wheel, which is rotatably connected to the frame, and the upper side of the auxiliary wheel contacts the belt to support the belt.

[0009] Based on the above technical solution, the vibration assembly includes a third rotating shaft, a rotating frame, and vibrating wheels. The vibration assembly is located inside the conveyor chain. The third rotating shaft is rotatably connected to the frame, and its left and right sides are fixedly connected to the rotating frame. The rotating frame is rotatably connected to multiple vibrating wheels, which are evenly arranged in a circle around the third rotating shaft. Each vibrating wheel contacts the inner side of the belt. The hydraulic motor drives the third rotating shaft to rotate via chain drive. Preferably, each rotating frame is rotatably connected to three vibrating wheels in an equilateral triangle configuration.

[0010] Based on the above technical solution, the number of vibration assemblies is two, and the rotation speed of the rotating frame of the vibration assembly closer to the shovel assembly is twice that of the rotating frame of the vibration assembly farther from the shovel assembly.

[0011] Based on the above technical solution, the winding assembly includes an outer tube, an inner tube, a telescopic limiting mechanism, a winding plate, a first rotating shaft, a hook, and a second rotating shaft. The left and right ends of the second rotating shaft are rotatably connected to the frame. The hydraulic motor drives the second rotating shaft to rotate via chain drive. The second rotating shaft passes through the frame and is fixedly connected to the first rotating shaft. The left and right ends of the first rotating shaft are fixedly connected to multiple inner tubes. The inner tubes on the left and right sides are evenly arranged in a circle around the first rotating shaft. The outer tube is fitted onto the outside of the inner tube and is slidably connected to the inner tube. The outer tube and the inner tube are fixed by the telescopic limiting mechanism. The winding plate is located between the corresponding outer tubes on the left and right sides and is fixedly connected to the outer tubes on the left and right sides. The hook is fixedly connected to the winding plate.

[0012] Based on the above technical solution, the telescopic limiting mechanism includes a telescopic head, a cylindrical sleeve, a contact block, a mounting base, a spring, and a fixing plate. The cylindrical sleeve passes through the inner tube and is fixedly connected to the inner tube. The fixing plate is located inside the inner tube and is fixedly connected to the inner tube. The two ends of the spring are respectively connected to the fixing plate and the mounting base. The contact block is rotatably connected to the mounting base. A slide is formed inside the cylindrical sleeve. The contact block is slidably connected to the slide of the cylindrical sleeve. A protrusion adapted to the contact block is formed at one end of the telescopic head near the contact block. A slider is formed on the outside of the telescopic head. The slider of the telescopic head is slidably connected to the slide of the cylindrical sleeve.

[0013] Based on the above technical solution, a packaging mechanism is also included. The packaging mechanism includes a lower drain frame, a film guide bend, a film cutter, a film sleeve shaft, a film roll, and a friction rubber sleeve. The lower drain frame is located at the rear of the conveying assembly and is fixedly connected to the frame. The lower drain frame forms a lower drain channel. The friction rubber sleeve is fitted on the outside of the lower drain frame. The rear of the lower drain frame is fixedly connected to multiple film guide bends. The film sleeve shaft is located at the rear of the film guide bends and is rotatably connected to the frame. The hydraulic motor drives the film sleeve shaft to rotate. The film roll is fitted and fixed on the outside of the film sleeve shaft. The film cutter is located above the film guide bend and the film cutter 53 reciprocates up and down relative to the film guide bend.

[0014] Based on the above technical solution, the packaging mechanism further includes a concave wheel, a fourth rotating shaft, and a concave auxiliary wheel. The left and right sides of the frame are respectively formed with elongated holes, and the left and right sides of the film cutting knife are respectively formed with sliding plates. The sliding plates pass through the elongated holes and are slidably connected to the elongated holes. The concave auxiliary wheel is rotatably connected to the sliding plates and contacts the concave wheel. The concave wheel is fixedly connected to the fourth rotating shaft, and the fourth rotating shaft is rotatably connected to the frame. The hydraulic motor drives the fourth rotating shaft to rotate.

[0015] Among them, tubers include potatoes, sweet potatoes, and other tuber-like vegetables.

[0016] The present invention has the following advantages:

[0017] 1. This invention is used for single-plant harvesting in potato plot breeding. It employs a conveying and separating device with alternating concave and straight grids to effectively prevent mixing of individual potato plants during harvesting.

[0018] 2. This invention includes a drip irrigation tape recycling device that simultaneously retracts the drip irrigation tape while harvesting potatoes;

[0019] 3. The inner and outer tubes of the winding assembly are retractable, making it easy to remove the drip tape wrapped around the winding plate;

[0020] 4. This invention is designed with a single-plant packaging function to package the tubers produced by a single plant, thus avoiding mixing between plants due to the uncertainty of the oblique projectile motion after landing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0022] Figure 1 : A top view of the structure of the present invention;

[0023] Figure 2 :exist Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0024] Figure 3 : Figure 2 A magnified schematic diagram of the local structure at point B;

[0025] Figure 4 One of the three-dimensional structural schematic diagrams of the present invention;

[0026] Figure 5 : Figure 4 A magnified schematic diagram of the local structure at point C;

[0027] Figure 6 : A second three-dimensional structural schematic diagram of the present invention;

[0028] Figure 7 : Figure 6 A magnified schematic diagram of the local structure at point D;

[0029] Figure 8 : A three-dimensional structural diagram of the conveyor chain;

[0030] Figure 9 : Figure 8 A magnified schematic diagram of the local structure at point F;

[0031] Figure 10 : One of the exploded three-dimensional views of the telescopic limit mechanism;

[0032] Figure 11 : Exploded view of the telescopic limit mechanism (part two);

[0033] Figure 12 : Side view structural diagram of the winding assembly;

[0034] Figure 13 : Figure 12 A schematic diagram of the cross-sectional structure of HH;

[0035] Figure 14 : Figure 13 A magnified schematic diagram of the local structure at point I;

[0036] Figure 15 :exist Figure 1 Schematic diagram of the cross-sectional structure at the middle EE;

[0037] Figure 16 :exist Figure 15 A magnified schematic diagram of the structure at point G in the middle. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and examples:

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Example 1:

[0043] like Figures 1 to 14 As shown, this embodiment provides a single-plant potato harvester, including: a frame 1, a shoveling assembly 2, a conveying assembly 3, a winding assembly 4, a vibrating assembly 6, and a hydraulic motor 7. The shoveling assembly 2 is located at the front end of the frame 1 and is fixedly connected to the frame 1. The conveying assembly 3 is located at the rear of the shoveling assembly 2. The vibrating assembly 6 drives the conveying assembly 3 to vibrate. The winding assembly 4 is rotatably connected to the frame 1. The hydraulic motor 7 is used to drive the conveying assembly 3, the winding assembly 4, and the vibrating assembly 6.

[0044] Based on the above technical solution, the shovel assembly 2 includes a blade 21, a blade transition plate 22, a blade connecting pipe 23, and a blade fixing pipe 24. The blade fixing pipe 24 is fixedly connected to the frame 1. The front side of the blade fixing pipe 24 is fixedly connected to multiple blade connecting pipes 23. The front end of the blade connecting pipe 23 is fixedly connected to the blade 21. The blade transition plate 22 is located above the blade 21 and is rotatably connected to the blade 21.

[0045] The shovel assembly 2 also includes a grass-cutting disc 12, which is located on the left and right sides of the blade shovel 21 and is rotatably connected to the frame 1.

[0046] Based on the above technical solution, the conveying assembly 3 includes a conveying chain, a drive wheel 34, and a driven wheel 36. The drive wheel 34 is coaxial with and fixedly connected to the rear drive shaft 37. The rear drive shaft 37 is rotatably connected to the frame 1. The driven wheel 36 is rotatably connected to the frame 1. The hydraulic motor 7 drives the drive wheel 34 to rotate through chain transmission. The conveying chain includes a belt 31 and multiple grid bar units. Each grid bar unit includes multiple concave grid bars 32 and straight grid bars 33. The number of concave grid bars 32 and straight grid bars 33 in each grid bar unit is equal. The concave grid bars 32 and straight grid bars 33 in each grid bar unit are located at the beginning and end of the grid bar unit, respectively. Adjacent grid bar units are connected end to end. All grid bar units are arranged one by one along the belt 31. The left and right ends of the concave grid bars 32 and straight grid bars 33 are fixedly connected to the belts 31 on the left and right sides, respectively. The belts 31 are connected end to end and are fitted on the outside of the driven wheel 36. Preferably, six concave grid bars and two straight grid bars 33 constitute one unit. Since there is a male and female connector strip at the belt interface, eight straight grid bars 33 are used at the belt interface, while the rest of the unit consists of six concave grid bars and two straight grid bars 33 arranged in sequence.

[0047] The spacing between adjacent grid bars is equal, and the drive wheel 34 is formed with a groove. The groove of the drive wheel 34 contacts the grid bar and drives the grid bar to move.

[0048] It also includes an auxiliary wheel 35, which is rotatably connected to the frame 1, and the upper side of the auxiliary wheel 35 contacts the belt 31 to support the belt 31.

[0049] Based on the above technical solution, the vibration assembly 6 includes a third rotating shaft 61, a rotating frame 62, and vibrating wheels 63. The vibration assembly 6 is located inside the conveyor chain. The third rotating shaft 61 is rotatably connected to the frame 1. The left and right sides of the third rotating shaft 61 are fixedly connected to the rotating frame 62, respectively. The rotating frame 62 is rotatably connected to multiple vibrating wheels 63. The vibrating wheels 63 are evenly arranged in a circle around the third rotating shaft 61. The vibrating wheels 63 are in contact with the inner side of the belt 31. The hydraulic motor 7 drives the third rotating shaft 61 to rotate via chain drive. The vibration frequency of the conveyor chain can be adjusted by adjusting the oil supply of the hydraulic motor 7, and the vibration amplitude of the conveyor chain can be adjusted by adjusting the upper rear side of the front vibration assembly 6. Figure 2 The height of the auxiliary wheel 35 (located on the upper right side) is adjusted. Preferably, each rotating frame is rotatably connected to three vibrating wheels 63, forming an equilateral triangle.

[0050] Based on the above technical solution, the number of vibration assemblies 6 is two, and the rotation speed of the rotating frame 62 of the vibration assembly 6 closer to the shovel assembly 2 is twice the rotation speed of the rotating frame 62 of the vibration assembly 6 farther from the shovel assembly 2.

[0051] Based on the above technical solution, the winding assembly 4 includes an outer tube 41, an inner tube 42, a telescopic limiting mechanism 43, a winding plate 44, a first rotating shaft 45, a hook 46, and a second rotating shaft 47. The left and right ends of the second rotating shaft 47 are rotatably connected to the frame 1, respectively. The hydraulic motor 7 drives the second rotating shaft 47 to rotate via chain transmission. The second rotating shaft 47 passes through the frame 1 and is fixedly connected to the first rotating shaft 45. The left and right ends of the first rotating shaft 45 are fixedly connected to multiple inner tubes 42, respectively. The inner tubes 42 on the left and right sides are evenly arranged in a circle around the first rotating shaft 45. The outer tube 41 is fitted on the outside of the inner tube 42 and is slidably connected to the inner tube 42. The outer tube 41 and the inner tube 42 are fixed by the telescopic limiting mechanism 43. The winding plate 44 is located between the corresponding outer tubes 41 on the left and right sides and is fixedly connected to the outer tubes 41 on the left and right sides. The hook 46 is fixedly connected to the winding plate 44.

[0052] Based on the above technical solution, the telescopic limiting mechanism 43 includes a telescopic head 431, a cylindrical sleeve 432, a contact block 433, a mounting base 434, a spring 435, and a fixing plate 436. The cylindrical sleeve 432 passes through the inner tube 42 and is fixedly connected to the inner tube 42. The fixing plate 436 is located inside the inner tube 42 and is fixedly connected to the inner tube 42. The two ends of the spring 435 are respectively connected to the fixing plate 436 and the mounting base 434. The contact block 433 is rotatably connected to the mounting base 434. A slide is formed inside the cylindrical sleeve 432. The contact block 433 is slidably connected to the slide of the cylindrical sleeve 432. A protrusion adapted to the contact block 433 is formed at one end of the telescopic head 431 near the contact block 433. A slider is formed on the outside of the telescopic head 431. The slider of the telescopic head 431 is slidably connected to the slide of the cylindrical sleeve 432.

[0053] When the outer tube 41 and the inner tube 42 are fixed, the telescopic head 431 only passes through the inner tube 42 (e.g., Figure 5 (as shown) or simultaneously passing through the outer tube 41 and the inner tube 42 (as shown) Figures 12 to 14 (As shown).

[0054] Based on the above technical solution, a packaging mechanism 5 is also included. The packaging mechanism 5 includes a lower drain frame 51, a film guide bending shaft 52, a film cutting knife 53, a film sleeve shaft 54, a film roll 55, and a friction rubber sleeve 58. The lower drain frame 51 is located on the rear side of the conveying assembly 3 and is fixedly connected to the frame 1. The lower drain frame 51 forms a lower drain channel 50. The friction rubber sleeve 58 is fitted on the outside of the lower drain frame 51. The rear side of the lower drain frame 51 is fixedly connected to multiple film guide bending shafts 52. The film sleeve shaft 54 ​​is located on the rear side of the film guide bending shaft 52 and is rotatably connected to the frame 1. The hydraulic motor 7 drives the film sleeve shaft 54 ​​to rotate. The film roll 55 is fitted and fixed on the outside of the film sleeve shaft 54. The film cutting knife 53 is located above the film guide bending shaft 52 and moves up and down reciprocally relative to the film guide bending shaft 52.

[0055] Based on the above technical solution, the packaging mechanism 5 further includes a concave wheel 56, a fourth rotating shaft 57, and a concave auxiliary wheel 532. The frame 1 has elongated holes 13 on its left and right sides respectively, and the film cutting knife 53 has sliding plates 531 on its left and right sides respectively. The sliding plates 531 pass through the elongated holes 13 and are slidably connected to the elongated holes 13. The concave auxiliary wheel 532 is rotatably connected to the sliding plates 531. The concave auxiliary wheel 532 is in contact with the concave wheel 56. The concave wheel 56 is fixedly connected to the fourth rotating shaft 57. The fourth rotating shaft 57 is rotatably connected to the frame 1. The hydraulic motor 7 drives the fourth rotating shaft 57 to rotate.

[0056] The frame 1 is fixedly connected to the ground support 11 on both sides below.

[0057] Working principle:

[0058] This implement is fixed to the rear of the traction machinery using an offset three-point suspension. The power source for the single-plant potato harvester is a hydraulic motor 7, which is equipped with a hydraulic speed control valve to adjust the oil supply to the hydraulic motor and the conveyor chain speed according to the actual working conditions. The hydraulic oil in the traction power cylinder enters the hydraulic motor 7 through the hydraulic oil pipe, driving the sprocket connected to the hydraulic motor 7 to rotate. Through chain drive, it drives the rear drive shaft 37, the second rotating shaft 47, and the third rotating shaft 61 to rotate.

[0059] The operator lowers the harvester's digging shovel to the appropriate digging depth using the operating handle. Hydraulic oil from the traction device enters the hydraulic motor 7 through hydraulic hoses, causing the traction device to move forward and the machine to begin operation. During digging, the potatoes are excavated by the shovel 21 and conveyed to the conveyor chain via the shovel transition plate 22 (stone divider). The shovel 21's inclination angle is the same as the conveyor chain's inclination angle, facilitating the upward transport of the potato-soil mixture and preventing soil clogging. The shovel transition plate 22 effectively prevents stones and hard soil clods from entering the conveyor chain from the underside of the excavation, thus preventing damage to the machine. If there is no stone or soil blockage, the shovel transition plate 22 and the shovel 21 remain on the same plane (at this time, the shovel transition plate 22 is stopped to prevent further downward rotation). If hard soil clods or stones are encountered, the shovel transition plate 22 rotates upward via a hinge connection. The gap between the shovel assembly 2 and the conveyor chain increases as the shovel transition plate 22's inclination angle increases. Hard objects, due to soil compression and the increased gap, enter the conveyor chain. Weeds and vines that have not been properly cleared are removed by the grass-cutting disc 12 to prevent them from getting tangled in the machinery.

[0060] The conveyor chain consists of six concave grids 32 and two straight grids 33. The tuber portion of each tuber plant falls entirely into the grooves formed by the concave grids 32. The straight grids 33 act as separators, preventing the tubers from rolling back and forth and avoiding mixing between tuber plants. The conveyor chain contains two sets of vibrating assemblies. The vibration frequency of the front vibrating assembly is twice that of the rear vibrating assembly. The vibration frequency can be adjusted using a hydraulic speed control valve. The soil is effectively separated by vibrating at different frequencies. If a tuber plant fails to fall into the concave grids during operation, the vibration of the conveyor chain, driven by the vibrating assembly, causes the tuber to fall into the grooves.

[0061] When the conveyor chain starts moving, the film sleeve shaft 54 ​​begins to rotate. When the potatoes move to the end of the conveyor chain, the beginning of the unwound film roll 55 moves forward along the film guide bending shaft 52 to the film fixing shaft of the lower drain frame 51. The potatoes pass between the two guide plates 14 and move into the lower drain channel 50. Because the friction rubber sleeve 58 fitted on the film fixing shaft exerts friction on the film, when the potatoes begin to fall, the friction force of the friction rubber sleeve 58 on the film does not reach the relative motion condition. After all the individual potatoes have fallen, the extensibility of the film itself wraps around the potatoes. Under the action of the weight of the individual potatoes, the beginning of the film drives the friction rubber sleeve 58 to rotate downward, and the beginning of the film disengages from the friction rubber sleeve 58. At this time, the hydraulic motor 7 drives the concave wheel mechanism to rotate through the transmission mechanism. The concave wheel 56 rotates under the drive of the fourth rotating shaft 57. The concave auxiliary wheel 532 moves along the outer contour trajectory of the concave wheel 56. When the concave auxiliary wheel 532 moves to the groove of the concave wheel 56, the film cutting knife 53 moves downward and cuts the film. The single potato plant wrapped in the film falls from the lower drain channel 50. The film cutting knife 53 moves up and down with the concave wheel mechanism, and the film continues to move forward along the film guiding bending shaft 52 to the film fixing thin shaft of the lower drain frame 51.

[0062] Meanwhile, the worker passes the drip irrigation tape between the movable guide roller 48 driven by the hydraulic motor 7 and the adhesive-coated guide roller 49, and inserts the hook 46 into the end of the drip irrigation tube. After the winding assembly 4 finishes winding, the telescopic head 431 on the telescopic limit mechanism 43 is pressed down. The telescopic head 431 retracts into the inner tube 42 and does not provide support for the outer tube 41. The outer tube 41 retracts downward under the weight of the drip irrigation tape. After the drip irrigation tape is removed, the winding plate 44 is pulled upward, and the telescopic head 431 is pressed down again. The telescopic head 431 pops out of the inner tube 42, fixing the outer tube 41 and the inner tube 42. The drip irrigation tape collection roller stretches back to its original shape. When the machine is not working, the movable guide roller 48 is tangential to the adhesive-coated guide roller 49 due to gravity.

[0063] Example 2:

[0064] like Figures 1 to 16 As shown, this embodiment is a further improvement on embodiment one. The packaging mechanism 5 also includes a camshaft 59, a cam 591, a drive device 8 and an electric heating block 81. The drive device 8 drives the electric heating block 81 to reciprocate left and right. The camshaft 59 is rotatably connected to the frame 1. The left and right sides of the camshaft 59 are respectively fixedly connected to the cam 591. The cam 591 intermittently squeezes and rubs the rubber sleeve 58.

[0065] Preferably, the driving device 8 is an electric push rod.

[0066] Working principle:

[0067] As the film moves forward, its end passes through the gap between the friction rubber sleeve 58 and the cam 591. The cam 591 then contacts the friction rubber sleeve 58, pressing and fixing the end of the film. Next, the weight of the single potato above the drain channel 50 causes the film above the drain channel 50 to stretch and deform downwards, allowing the potato and film to pass through the drain channel 50. Afterwards, the drive devices 8 on both sides drive the two electric heating blocks 81 to move towards each other, heating and pressurizing the film to seal it (at this time, the potato is located inside the film below the electric heating block 81). Finally, the electric heating blocks 81 move away from each other, disengaging from the film. The cam 591 rotates with them and also disengages from the end of the film, allowing the gap between the cam 591 and the friction rubber sleeve 58 to reappear. At this point, the cutting blade 53 cuts the film, and the potato and film move downwards under gravity, detaching from the packaging mechanism 5. The falling film becomes a film bag with a cavity isolated from the outside world, where the potato is located, thus preventing damage from stones and animals.

[0068] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A single-plant harvester for potatoes, characterized in that, include: The frame (1), the shovel assembly (2), the conveyor assembly (3), the winding assembly (4), the vibration assembly (6), and the hydraulic motor (7) are provided. The shovel assembly (2) is located at the front end of the frame (1) and is fixedly connected to the frame (1). The conveyor assembly (3) is located at the rear side of the shovel assembly (2). The vibration assembly (6) drives the conveyor assembly (3) to vibrate. The winding assembly (4) is rotatably connected to the frame (1). The hydraulic motor (7) is used to drive the conveyor assembly (3), the winding assembly (4), and the vibration assembly (6). The conveying assembly (3) includes a conveying chain, a drive wheel (34) and a driven wheel (36). The drive wheel (34) and the driven wheel (36) are rotatably connected to the frame (1). The hydraulic motor (7) drives the drive wheel (34) to rotate through chain drive. The conveying chain includes a belt (31) and multiple grid units. Each grid unit includes multiple concave grids (32) and straight grids (33). The number of concave grids (32) and straight grids (33) in each grid unit is equal. The concave grids (32) and straight grids (33) in each grid unit are located at the beginning and end of the grid unit. Adjacent grid units are connected end to end. All grid units are arranged one by one along the belt (31). The left and right ends of the concave grids (32) and straight grids (33) are fixedly connected to the belts (31) on the left and right sides respectively. The belts (31) are connected end to end and are fitted on the outside of the driven wheel (36). The spacing between adjacent grid bars is equal, and the drive wheel (34) is formed with a groove. The groove of the drive wheel (34) contacts the grid bar and drives the grid bar to move. It also includes a packaging mechanism (5), which includes a lower drain frame (51), a film guide bend (52), a film cutter (53), a film sleeve shaft (54), a film roll (55), and a friction rubber sleeve (58). The lower drain frame (51) is located behind the conveying assembly (3) and is fixedly connected to the frame (1). The lower drain frame (51) forms a lower drain channel (50). The friction rubber sleeve (58) is fitted on the outside of the lower drain frame (51). The lower filter frame (51) is fixedly connected to multiple film guide bends (52) on the rear side. The film sleeve (54) is located on the rear side of the film guide bend (52) and is rotatably connected to the frame (1). The hydraulic motor (7) drives the film sleeve (54) to rotate. The film roll (55) is fixedly mounted on the outside of the film sleeve (54). The film cutting knife (53) is located above the film guide bend (52). The film cutting knife (53) moves up and down relative to the film guide bend (52). The film cutting knife (53) cuts the film, and the individual tubers wrapped in the film fall through the drain channel (50).

2. The single-plant harvester for potatoes according to claim 1, characterized in that: The shovel assembly (2) includes a blade (21), a blade transition plate (22), a blade connecting pipe (23), and a blade fixing pipe (24). The blade fixing pipe (24) is fixedly connected to the frame (1). The front side of the blade fixing pipe (24) is fixedly connected to multiple blade connecting pipes (23). The front end of the blade connecting pipe (23) is fixedly connected to the blade (21). The blade transition plate (22) is located above the blade (21) and is rotatably connected to the blade (21).

3. A single-plant potato harvester according to claim 1, characterized in that: It also includes an auxiliary wheel (35), which is rotatably connected to the frame (1), and the upper side of the auxiliary wheel (35) contacts the belt (31) to support the belt (31).

4. A single-plant potato harvester according to claim 1, characterized in that: The vibration assembly (6) includes a third rotating shaft (61), a rotating frame (62), and a vibrating wheel (63). The vibration assembly (6) is located inside the conveyor chain. The third rotating shaft (61) is rotatably connected to the frame (1). The left and right sides of the third rotating shaft (61) are fixedly connected to the rotating frame (62) respectively. The rotating frame (62) is rotatably connected to multiple vibrating wheels (63). The vibrating wheels (63) are evenly arranged around the third rotating shaft (61). The vibrating wheels (63) are in contact with the inner side of the belt (31). The hydraulic motor (7) drives the third rotating shaft (61) to rotate through chain drive.

5. A single-plant harvester for potatoes according to claim 4, characterized in that: The number of vibration assemblies (6) is two, and the rotation speed of the rotating frame (62) of the vibration assembly (6) closer to the shovel assembly (2) is twice that of the rotating frame (62) of the vibration assembly (6) further away from the shovel assembly (2).

6. A single-plant harvester for potatoes according to claim 1, characterized in that: The winding assembly (4) includes an outer tube (41), an inner tube (42), a telescopic limiting mechanism (43), a winding plate (44), a first rotating shaft (45), a hook (46), and a second rotating shaft (47). The left and right ends of the second rotating shaft (47) are rotatably connected to the frame (1), respectively. The hydraulic motor (7) drives the second rotating shaft (47) to rotate via chain drive. The second rotating shaft (47) passes through the frame (1) and is fixedly connected to the first rotating shaft (45). The left and right ends of the first rotating shaft (45) are... The inner tubes (42) are fixedly connected to multiple inner tubes (42) respectively. The inner tubes (42) on the left and right sides are evenly arranged around the first rotating axis (45). The outer tube (41) is fitted on the outside of the inner tube (42) and is slidably connected to the inner tube (42). The outer tube (41) and the inner tube (42) are fixed by the telescopic limiting mechanism (43). The winding plate (44) is located between the corresponding outer tubes (41) on the left and right sides and is fixedly connected to the outer tubes (41) on the left and right sides. The hook (46) is fixedly connected to the winding plate (44).

7. A single-plant harvester for potatoes according to claim 6, characterized in that: The telescopic limiting mechanism (43) includes a telescopic head (431), a cylindrical sleeve (432), a contact block (433), a mounting base (434), a spring (435), and a fixing plate (436). The cylindrical sleeve (432) passes through the inner tube (42) and is fixedly connected to the inner tube (42). The fixing plate (436) is located inside the inner tube (42) and is fixedly connected to the inner tube (42). The two ends of the spring (435) are respectively connected to the fixing plate (436) and the mounting base (434). The contact block (433) is rotatably connected to the mounting base (434). A slide is formed inside the cylindrical sleeve (432). The contact block (433) is slidably connected to the slide of the cylindrical sleeve (432). A protrusion adapted to the contact block (433) is formed at one end of the telescopic head (431) near the contact block (433). A slider is formed on the outside of the telescopic head (431). The slider of the telescopic head (431) is slidably connected to the slide of the cylindrical sleeve (432).

8. A single-plant potato harvester according to claim 1, characterized in that: The packaging mechanism (5) further includes a concave wheel (56), a fourth rotating shaft (57), and a concave auxiliary wheel (532). The frame (1) has elongated holes (13) on its left and right sides respectively. The cutting blade (53) has sliding plates (531) on its left and right sides respectively. The sliding plates (531) pass through the elongated holes (13) and are slidably connected to the elongated holes (13). The concave auxiliary wheel (532) is rotatably connected to the sliding plates (531). The concave auxiliary wheel (532) is in contact with the concave wheel (56). The concave wheel (56) is fixedly connected to the fourth rotating shaft (57). The fourth rotating shaft (57) is rotatably connected to the frame (1). The hydraulic motor (7) drives the fourth rotating shaft (57) to rotate.

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