CN113748822B

CN113748822B - Potato combined harvester

Info

Publication number: CN113748822B
Application number: CN202111136329.7A
Authority: CN
Inventors: 曹立志; 薛中原; 张龙; 陶玉娥; 李林; 田艳敏; 李树学; 李志�
Original assignee: Weichang Manchu Mongolian Autonomous County Yuannong Machinery Manufacturing Co ltd
Current assignee: Weichang Manchu Mongolian Autonomous County Yuannong Machinery Manufacturing Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-12-06
Anticipated expiration: 2041-09-27
Also published as: CN113748822A

Abstract

The invention provides a potato combine harvester which comprises a rack, an excavating mechanism, a potato seedling separating mechanism, a sorting table, a first loading and unloading mechanism and a second loading and unloading mechanism. The digging mechanism is arranged on the frame and is used for digging the potatoes; the potato seedling separating mechanism is arranged on the rack and used for separating the excavated potatoes from the potato seedlings; the sorting table is used for separating the potatoes after the potato seedlings are separated into large potatoes and small potatoes according to the size of the size, and comprises a sorting table frame body, a sorting power roller and a small potato conveying unit; the first loading and unloading mechanism is arranged on the rack and used for loading and unloading the large potatoes screened by the sorting table; the second unloading mechanism is arranged on the rack and is used for packing and unloading the small potatoes screened by the sorting table. The invention provides a potato combine harvester, and aims to solve the technical problems that the potato harvester in the prior art cannot automatically complete packaging and unloading when collecting potatoes, and the potato skin is easily damaged.

Description

Potato combined harvester

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a potato combine harvester.

Background

The potato harvesting method is mainly based on manual harvesting in China, so that the harvesting efficiency is very low and a large amount of manpower is needed. Although a plurality of potato harvesting machines appear in the market in recent years, due to the structural problems, some machine types need manual seedling cutting, and some machine types need manual packaging and potato block unloading, so that the labor intensity of potato farmers is reduced to a certain extent, the harvesting efficiency is lower, the harvesting cost is higher, the planting benefit of the potato farmers is not ideal, the large-area planting of potatoes is severely limited, and some potato screening mechanisms easily cause potato damage. Therefore, a multifunctional potato combine harvester which can automatically complete the packing and unloading and avoid the damage of the potato skin is needed.

Disclosure of Invention

The embodiment of the invention provides a potato combine harvester, and aims to solve the technical problems that the potato harvester in the prior art cannot automatically complete packaging and unloading when collecting potatoes, and the skins of the potatoes are easily damaged.

In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a potato combine harvester comprising: the potato seedling separating machine comprises a rack, an excavating mechanism, a potato seedling separating mechanism, a sorting table, a first loading and unloading mechanism and a second loading and unloading mechanism;

the digging mechanism is arranged on the rack and is used for digging potatoes;

the potato seedling separating mechanism is arranged on the rack and is used for separating the excavated potatoes from the potato seedlings;

the sorting table is used for separating the potatoes after the potato seedling separation into large potatoes and small potatoes according to the size of the size; the sorting table comprises a sorting table frame body fixed on the rack, a plurality of sorting power rollers which are arranged on the sorting table frame body at intervals and used for conveying large potatoes to the first loading and unloading mechanism, and small potato conveying units which are positioned at the lower parts of the sorting power rollers and used for receiving and conveying small potatoes to the second loading and unloading mechanism; the sorting power roller comprises a power roller body which is rotatably arranged on the sorting table frame body, and a plurality of convex bodies which are axially arranged along the power roller body are arranged on the periphery of the power roller body; the convex body is a rubber casting component or a rubber component;

the first loading and unloading mechanism is arranged on the rack and is used for loading and unloading the large potatoes screened by the sorting table;

and the second unloading mechanism is arranged on the rack and is used for packing and unloading the small potatoes screened by the sorting table.

In one possible implementation manner, the potato seedling separating mechanism comprises a first power roller arranged on the frame, a second power roller arranged on the frame and a first conveying unit arranged on the frame and used for conveying the excavated potatoes and potato seedlings to the second power roller; the first power roller comprises a first roller body rotationally arranged on the rack, the second power roller comprises a second roller body rotationally arranged on the rack, the first roller body is positioned between the first conveying unit and the second roller body, and the first roller body and the second roller body are arranged at intervals; the periphery of the second roller body is provided with a plurality of first convex thorns which are arranged at intervals along the axial direction of the second roller body, and each first convex thorn comprises a plurality of first convex thorns which are annularly distributed on the periphery of the second roller body and used for hooking the potato seedlings; the rotation of the first roller body is used for continuing the conveying trend of the potatoes and the potato seedlings on the first conveying unit, and the rotation direction of the second roller body is opposite to that of the first roller body so as to separate the potato seedlings from the potatoes.

In one possible implementation, the potato combine harvester further comprises a conveying mechanism for conveying the potatoes separated from the potato seedling separating mechanism to the sorting deck;

the conveying mechanism comprises a third power roller arranged on the rack, a fourth power roller arranged on the rack and a second conveying unit arranged on the rack and used for receiving potatoes and potato seedlings from the second power roller and conveying the potatoes and the potato seedlings to the fourth power roller;

the third power roller comprises a third roller body which is rotatably arranged on the rack, the fourth power roller comprises a fourth roller body which is rotatably arranged on the rack, the third roller body is positioned between the second conveying unit and the fourth roller body, and the third roller body and the fourth roller body are arranged at intervals; a plurality of second convex thorns which are arranged at intervals along the axial direction of the fourth roller body are arranged on the periphery of the fourth roller body, and each second convex thorn comprises a plurality of second convex thorns which are annularly distributed on the periphery of the fourth roller body and are used for hooking the potato seedlings; the rotation of the third roller body is used for continuing the conveying trend of the potatoes and the potato seedlings on the second conveying unit, and the rotation direction of the fourth roller body is opposite to that of the third roller body so as to separate the potato seedlings from the potatoes.

In a possible realization, the transfer mechanism further comprises a third transfer unit for taking potatoes from the fourth powered roller and transferring them to the sorting deck.

In one possible implementation, the convex bodies are spherical structures.

In one possible implementation, the first loading and unloading mechanism comprises a potato collecting bucket which is installed on the frame and used for collecting potatoes and an unloading unit which is installed on the frame and used for packing and unloading the potatoes collected by the potato collecting bucket.

In a possible implementation manner, the unloading unit comprises a slide way frame fixedly arranged on the rack, a first hydraulic cylinder, a second hydraulic cylinder, a lifting platform arranged on the slide way frame in a sliding manner along the vertical direction, a packing and unloading hopper positioned on the lower side of the potato collecting hopper, and a collecting bag positioned in the packing and unloading hopper; the packing and unloading hopper is arranged on the lifting platform in a pitching rotating manner, and the upper end of the packing and unloading hopper is opened; the fixed end of the first hydraulic cylinder is connected with the slideway frame, and the movable end of the first hydraulic cylinder is connected with the lifting platform so as to realize the lifting of the lifting platform; the stiff end of second pneumatic cylinder with the elevating platform links to each other, the expansion end of second pneumatic cylinder with packing uninstallation fill is articulated, in order to realize the every single move rotation of packing uninstallation fill.

In one possible implementation, the first and second attachment/detachment mechanisms are identical in structure.

The potato combine harvester provided by the invention has the beneficial effects that: compared with the prior art, the potato seedling separating mechanism is used for separating potatoes from potato seedlings, the sorting table comprises a plurality of sorting power rollers for conveying the potatoes and a small potato conveying unit positioned at the lower part of the sorting power rollers, the potatoes are divided into large potatoes and small potatoes according to the size of the size and are conveyed to the first loading and unloading mechanism and the second loading and unloading mechanism, and therefore the large potatoes and the small potatoes screened and separated by the sorting table are automatically packaged and unloaded. The periphery of the sorting power roller is provided with a rubber casting convex body or a rubber component, so that the potato skin is protected, and the damage to the potato skin is avoided. Through setting up potato seedling separating mechanism, sorting platform, first loading and unloading mechanism and second loading and unloading mechanism, realized that potato combine collects potato seedling separation, quality and selects separately, automatic packing uninstallation etc. is multi-functional in an organic whole, has reduced manual operation's cost, has improved work efficiency.

Drawings

FIG. 1 is a schematic structural view of a potato combine harvester according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the harvesting main body of the potato combine harvester provided by the embodiment of the invention;

fig. 3 is a schematic structural diagram of positions of a first roller body, a second roller body, a vertical rod and a first conveying unit of the potato combine harvester provided by the embodiment of the invention;

FIG. 4 is a schematic view of a first loading and unloading configuration of the potato combine harvester according to the embodiment of the invention;

fig. 5 is a schematic structural view of a sorting table frame body and a plurality of sorting power rollers of the potato combine harvester provided by the embodiment of the invention.

Description of reference numerals: 10. a frame; 20. an excavating mechanism; 30. a potato seedling separating mechanism; 31. a first transfer unit; 32. a first roller body; 33. a second roller body; 331. a first spur; 3311. a first spur structure; 34. erecting a rod; 40. sorting tables; 41. a sorting table frame body; 42. a sorting power roller; 421. a power roller body; 4211. a convex body; 43. a small potato conveying unit; 50. a first loading and unloading mechanism; 51. a potato collecting bucket; 52. an unloading unit; 521. a chute frame; 522. a lifting platform; 523. a first hydraulic cylinder; 524. a second hydraulic cylinder; 525. a packing and unloading hopper; 526. a pulley; 60 a transport mechanism; 61. a second transfer unit; 62. and a third transfer unit.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.

It should also be noted that, unless expressly specified or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 5 together, a potato combine according to the present invention will now be described. The potato combine harvester comprises a rack 10, an excavating mechanism 20, a potato seedling separating mechanism 30, a sorting table 40, a first loading and unloading mechanism 50 and a second loading and unloading mechanism.

A digging mechanism 20 (the digging mechanism 20 is prior art and not described in detail herein) is mounted to the frame 10 for digging potatoes. The potato seedling separating mechanism 30 is installed on the frame 10 and used for separating the excavated potatoes and potato seedlings.

The sorting table 40 is used for separating the potatoes separated from the potato seedlings into big potatoes and small potatoes according to the size of the volume. The sorting deck 40 includes a sorting deck frame 41, a plurality of sorting power rollers 42, and a small potato conveying unit 43. The sorting deck frame body 41 is fixedly installed on the frame 10. A plurality of sorting power rollers 42 are arranged on the sorting deck body 41 at regular intervals, and the sorting power rollers 42 are used for conveying the screened large potatoes to the first loading and unloading mechanism 50. A small potato transfer unit 43 is located below the sorting power roller 42, and the small potato transfer unit 43 is used for taking and conveying small potatoes falling from the sorting power roller 42 and transferring the small potatoes to a second loading and unloading mechanism.

The sorting power roller 42 includes a power roller body 421 rotatably provided on the sorting deck body 41. A plurality of convex bodies 4211 are arranged on the periphery of the power roller body 421, and the convex bodies 4211 are arranged along the axial direction of the power roller body 421. The boss 4211 is a rubber member or a cast rubber member.

A first loading and unloading mechanism 50 is mounted on the frame 10 for loading and unloading the large potatoes sifted by the sifting station 40.

A second loading and unloading mechanism is mounted on the frame 10 for loading and unloading the small potatoes sifted by the sifting station 40.

In the embodiment, the potatoes are dug by the digging mechanism 20 and then transferred to the potato seedling separating mechanism 30, the potato seedling separating mechanism 30 separates the potatoes and the potato seedlings, the separated potatoes pass through the sorting platform 40, the sorting platform 40 is provided with a sorting power roller 42 and a small potato conveying unit 43 positioned below the sorting power roller 42, the sorting power roller 42 divides the potatoes into large potatoes and small potatoes according to the volume, the sorting power roller 42 conveys the large potatoes to the first loading and unloading mechanism 50, the small potato conveying unit 43 conveys the small potatoes to the second loading and unloading mechanism, and the first loading and unloading mechanism 50 and the second loading and unloading mechanism respectively package and unload the large potatoes and small potatoes screened and separated by the sorting platform 40, so that the operation is convenient and the working efficiency is improved.

Compared with the prior art, the potato combine harvester provided by the embodiment of the invention has the advantages that the potatoes and the potato seedlings are separated by the potato seedling separating mechanism, the sorting platform is arranged and comprises a plurality of sorting power rollers for conveying the potatoes and a small potato conveying unit positioned at the lower part of the sorting power rollers, the potatoes are divided into large potatoes and small potatoes according to the volume and are conveyed to the first loading and unloading mechanism and the second loading and unloading mechanism, and therefore the large potatoes and the small potatoes screened and separated by the sorting platform are automatically packaged and unloaded. The periphery of the sorting power roller is provided with a rubber casting convex body or a rubber component, so that the potato skin is protected, and the damage to the potato skin is avoided. Through setting up potato seedling separating mechanism, sorting platform, first loading and unloading mechanism and second loading and unloading mechanism, realized that potato combine collects potato seedling separation, quality and selects separately, automatic packing uninstallation etc. are multi-functional in an organic whole, have reduced manual operation's cost, have improved work efficiency.

In some embodiments, referring to fig. 1 and 3, the potato seedling separating mechanism 30 includes a first power roller, a second power roller and a first conveying unit 31, all of which are mounted on the frame 10. The first transfer unit 31 is used to transfer the excavated potatoes and potato seedlings to the second powered roller. First power roller is including rotating first roll body 32 that sets up in frame 10 and being used for the drive first roll body 32 pivoted first motor, and second power roller is including rotating second roll body 33 that sets up in frame 10 and being used for the drive second roll body 33 pivoted second motor.

The first roller 32 is located between the first conveying unit 31 and the second roller 33, and a space is provided between the first roller 32 and the second roller 33. The periphery of second roll body 32 is equipped with a plurality of first spurs 331 that set up along its axial interval, and first spurs 331 include a plurality of first protruding thorn structures 3311, and first protruding thorn structure 3311 encircles the periphery of cloth at second roll body 33, and first protruding thorn structure 3311 is used for the hook thorn seedling. There is a space between the first barbed structures 3311 and the first roller body 32, which of course is smaller than the size of the small potatoes being sifted out, preventing the small potatoes from falling out of between the first barbed structures 3311 and the first roller body 32.

The rotation of the first roller 32 is used to continue the conveying tendency of the potatoes and potato seedlings on the first conveying unit 31. The second roller body 33 and the first roller body 32 rotate in opposite directions, so that the potato seedlings are separated from the potatoes. Optionally, the surfaces of the first roller body 32 and the first protruding spine 331 are made of a casting glue material, so that damage to the potato skin in the separation process is avoided.

In this embodiment, the potatoes and the potato seedlings are conveyed to the first power roller through the first conveying unit 31, a plurality of upright posts 34 are arranged between the first conveying unit 31 and the first power roller at intervals, the upright posts 34 are used for blocking a part of the potato seedling vines, a gap is arranged between the first conveying unit 31 and the first roller body 32, and the blocked potato seedling vines fall onto the ground along with the transmission of the first conveying unit 31. The first motor drives the first roller body 32 to rotate, the rotation of the first roller body 32 is used for continuing the conveying trend of the potatoes and the potato seedlings on the first conveying unit 31, the second motor drives the second roller body 33 to rotate, but the rotation directions of the second roller body 33 and the first roller body 32 are opposite, and therefore the potato seedlings are separated from the potatoes.

In some embodiments, referring to fig. 1, the potato combine harvester according to embodiments of the present invention further includes a transport mechanism 60. The potatoes separated from the potato seedling separating mechanism 30 are transferred to the sorting deck 40 by a transfer mechanism 60.

The transfer mechanism 60 includes a third power roller, a fourth power roller, and a second transfer unit 61, all mounted on the frame. Potatoes and potato seedlings picked up from the second power roller are conveyed to the fourth power roller by the second conveying unit 61. The third power roller comprises a third roller body rotatably arranged on the rack 10 and a third motor used for driving the third roller body to rotate, and the fourth power roller comprises a fourth roller body rotatably arranged on the rack 10 and a fourth motor used for driving the fourth roller body to rotate.

The third roller body is positioned between the second conveying unit 61 and the fourth roller body, and a space is provided between the third roller body and the fourth roller body. The periphery of the fourth roller body is provided with a plurality of second protruding thorns arranged at intervals along the axial direction of the fourth roller body, each second protruding thorn comprises a plurality of second protruding thorns, the second protruding thorns are annularly distributed on the periphery of the fourth roller body, and the second protruding thorns are used for hooking the sweet potato seedlings. A gap exists between the second convex thorn structures and the third roller body, and the gap is smaller than the size of the small potatoes screened out certainly, so that the small potatoes are prevented from falling from the gap between the second convex thorn structures and the third roller body.

The rotation of the third roller body serves to continue the conveying tendency of the potatoes and potato seedlings on the second conveying unit 61. The fourth roller body and the third roller body rotate in opposite directions, so that potato seedlings which are not separated are separated from potatoes. Optionally, the surfaces of the third roller body and the second protruding thorns are both made of cast rubber, so that damage to the potato skin in the separation process is avoided.

In the embodiment, the potatoes and the potato seedlings are conveyed to the third power roller through the second conveying unit 61, a plurality of vertical rods 34 arranged at intervals are arranged between the second conveying unit and the third power roller, the vertical rods 34 are used for blocking a part of the potato seedling vines, a gap is formed between the second conveying unit 61 and the third roller body, and the blocked potato seedling vines fall onto the ground along with the transmission of the second conveying unit 61. The third motor drives the third roller body to rotate, the rotation of the third roller body is used for continuing the conveying trend of the potatoes and the potato seedlings on the second conveying unit 61, the fourth motor drives the fourth roller body to rotate, but the rotating directions of the fourth roller body and the third roller body are opposite, so that the potato seedlings which are remained and not completely separated are separated from the potatoes.

In some embodiments, referring to fig. 1, the transfer mechanism 60 further includes a third transfer unit 62. The third transfer unit 62 is adapted to take the potatoes at the fourth powered roller and transfer the potatoes to the sorting deck 40.

In some embodiments, referring to FIG. 5, the protrusions 4211 are spherical such that the small potatoes can fall through the gaps between the powered rollers 421 without protrusions 4211 to the small potato transport unit 43, and the spacing between the powered rollers 421 is adjustable to complete the sorting of the large and small potatoes.

In some embodiments, referring to fig. 1, the first handling mechanism 50 includes a potato collecting hopper 51 and an unloading unit 52, both mounted on the frame 10. Unloading unit 52 is used for packing and uninstalling the potato, and the upper end opening setting of collection potato fill 51 is equipped with first plate body and second plate body in the bottom of collection potato fill 51, and first plate body and second plate body all are connected with the lateral wall rotation of collection potato fill 51. In this embodiment, in the process of collecting the potatoes, the first plate body and the second plate body are in a vertical state, the bottom end of the potato collecting hopper 51 is in an open state, the separated large potatoes directly enter the unloading unit 52 through the potato collecting hopper 51, when the potatoes are filled in the unloading unit 52 and need to be packed, the first plate body and the second plate body are rotated to a horizontal state, the bottom of the potato collecting hopper 51 is blocked by the first plate body and the second plate body, the operation of the potato combine harvester does not need to be stopped, the large potatoes separated by the sorting table 40 are collected and stored in the potato collecting hopper 51, the first plate body and the second plate body are rotated to a vertical state after the packed potatoes are unloaded, the bottom of the potato collecting hopper 51 is in an open state, the packing operation is continued, and the working efficiency is improved.

In some embodiments, referring to fig. 4, the unloading unit 52 includes a chute frame 521, a first hydraulic cylinder 523, a second hydraulic cylinder 524, a lifting platform 522, a baling unloading bucket 525, and a collection bag. The sliding frame 521 is fixedly installed on the frame 10. The first hydraulic cylinders 523 are arranged in parallel in two groups, the fixed ends of the two groups of first hydraulic cylinders 523 are connected with the slide way frame 521, the movable ends of the two groups of first hydraulic cylinders 523 are connected with the lifting platform 522, the lifting platform 522 is provided with pulleys 526, the lifting platform 522 is arranged on the slide way frame 521 in a sliding mode along the vertical direction, and the two groups of first hydraulic cylinders 523 work synchronously, so that the lifting platform 522 is lifted along the vertical direction.

Packing uninstallation fill 525 is located the downside that collection potato fought 51, and packing uninstallation fill 525 upper end opening collects the bag and is located packing uninstallation fill 525, and the expansion end of second hydraulic cylinder 524 is articulated with packing uninstallation fill 525, and the stiff end of second hydraulic cylinder 524 links to each other with elevating platform 522 to the every single move rotation that the packing was uninstalled and is fought is realized.

In this embodiment, the collecting bag is located in the packing and unloading bucket 525, and the packing and unloading bucket 525 is located below the potato collecting bucket 51, so that the potatoes in the potato collecting bucket 51 fall into the collecting bag to complete the packing of the potatoes. And starting the first hydraulic cylinder 523, driving the lifting platform 522 to descend by the first hydraulic cylinder 523, and then starting the second hydraulic cylinder 524 to rotate the packing and unloading bucket 525 to unload the packed potatoes.

In some embodiments, the first and second attachment mechanisms 50 and 50 are identical in structure.

In some embodiments, referring to FIG. 1, A-A is the front-back direction of the rack 10, B-B is the up-down direction of the rack 10, and the left-right direction of the rack 10 is perpendicular to the front-back direction of the rack 10 and the up-down direction of the rack 10. The digging mechanism 20 is positioned in front of the frame 10, the first conveying unit 31 is adjacent to the digging mechanism 20 and positioned behind the digging mechanism 20, the first conveying unit 31 is arranged along the front-back direction of the frame 10, potatoes dug by the digging mechanism 20 are conveyed to a first power roller through the first conveying unit 31, the first power roller is positioned behind the first conveying unit 31, the first power roller is arranged in parallel with the first conveying unit 31, the potato seedling separating mechanism 30 conveys the separated potatoes to a second conveying unit 61, the second conveying unit 61 is arranged along the left-right direction of the frame 10, the second conveying unit 61 conveys the potatoes to a third conveying unit 62, the third conveying unit 62 comprises two parts, the first part of the third conveying unit 62 is positioned at the right side of the frame 10 and positioned along the front-back direction of the frame 10, and the third conveying unit 62 is arranged at an angle with the front-back direction of the rack 10, the second part of the third conveying unit 62 is arranged above the rack 10 along the left-right direction of the rack 10, the third conveying unit 62 conveys the potatoes from the second conveying unit 62 to the sorting table 40 arranged above the rack 10, the sorting table 40 is arranged along the front-back direction of the rack 10 and is arranged at the left side of the rack 10, the first unloading mechanism 50 is arranged at the tail part of the sorting table 40, the sorting power roller 42 conveys the screened large potatoes to the first unloading mechanism 50, the first unloading mechanism 50 packs and unloads the large potatoes, the small potato conveying unit 43 is arranged below the sorting power roller 42, the small potatoes screened by the sorting power roller 42 are conveyed to the second unloading mechanism through the small potato conveying unit 43, and the second unloading mechanism is arranged at the left side of the rack 10 and is connected with the small potato conveying unit 43 for packing and unloading the small potatoes.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. A potato combine harvester is characterized by comprising: the potato seedling separating machine comprises a rack, an excavating mechanism, a potato seedling separating mechanism, a sorting table, a first loading and unloading mechanism and a second loading and unloading mechanism;

the digging mechanism is arranged on the rack and is used for digging potatoes;

the second loading and unloading mechanism is arranged on the rack and is used for loading and unloading the small potatoes screened by the sorting table;

the convex bodies are spherical structures;

the first loading and unloading mechanism comprises a potato collecting hopper and an unloading unit, the potato collecting hopper is mounted on the rack and used for collecting potatoes, and the unloading unit is mounted on the rack and used for packing and unloading the potatoes collected by the potato collecting hopper;

the unloading unit comprises a slideway frame fixedly arranged on the rack, a first hydraulic cylinder, a second hydraulic cylinder, a lifting platform arranged on the slideway frame in a sliding manner along the vertical direction, a packing and unloading hopper positioned on the lower side of the potato collecting hopper, and a collecting bag positioned in the packing and unloading hopper; the packing and unloading bucket is arranged on the lifting platform in a pitching rotating manner, and the upper end of the packing and unloading bucket is provided with an opening; the fixed end of the first hydraulic cylinder is connected with the slideway frame, and the movable end of the first hydraulic cylinder is connected with the lifting platform so as to realize the lifting of the lifting platform; the fixed end of the second hydraulic cylinder is connected with the lifting platform, and the movable end of the second hydraulic cylinder is hinged with the packing and unloading hopper so as to realize the pitching rotation of the packing and unloading hopper;

the potato seedling separating mechanism comprises a first power roller arranged on the rack, a second power roller arranged on the rack and a first conveying unit arranged on the rack and used for conveying the excavated potatoes and potato seedlings to the second power roller; the first power roller comprises a first roller body rotationally arranged on the rack, the second power roller comprises a second roller body rotationally arranged on the rack, the first roller body is positioned between the first conveying unit and the second roller body, and the first roller body and the second roller body are arranged at intervals; the periphery of the second roller body is provided with a plurality of first convex thorns which are arranged at intervals along the axial direction of the second roller body, and the first convex thorns comprise a plurality of first convex thorns which are annularly distributed on the periphery of the second roller body and used for hooking and puncturing the potato seedlings; the rotation of the first roller body is used for continuing the conveying trend of the potatoes and the potato seedlings on the first conveying unit, and the rotation direction of the second roller body is opposite to that of the first roller body so as to separate the potato seedlings from the potatoes;

the potato combine harvester also comprises a conveying mechanism for conveying the potatoes separated from the potato seedling separating mechanism to the sorting platform;

the third power roller comprises a third roller body which is rotatably arranged on the rack, the fourth power roller comprises a fourth roller body which is rotatably arranged on the rack, the third roller body is positioned between the second conveying unit and the fourth roller body, and the third roller body and the fourth roller body are arranged at intervals; a plurality of second convex thorns which are arranged at intervals along the axial direction of the fourth roller body are arranged on the periphery of the fourth roller body, and each second convex thorn comprises a plurality of second convex thorns which are annularly distributed on the periphery of the fourth roller body and are used for hooking and puncturing the potato seedlings; the rotation of the third roller body is used for continuing the conveying trend of the potatoes and the potato seedlings on the second conveying unit, and the rotation direction of the fourth roller body is opposite to that of the third roller body so as to separate the potato seedlings from the potatoes.

2. A potato combine harvester according to claim 1, wherein the conveyor mechanism further comprises a third conveyor unit for taking potatoes from the fourth powered roller and conveying them to the sorting deck.

3. A potato combine harvester according to claim 1, wherein the first handling mechanism and the second handling mechanism are identical in construction.