Self-propelled integrated potato harvester

Abstract

The present invention discloses a self-propelled integrated combined potato harvester, which is characterized by comprising a steering traction mechanism, a feed shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collection box conveying mechanism. A cab is provided on one side of the upper end surface of the frame, and a control box and an operating handle are installed in the cab. The operating handle is electrically connected to the control box, and the control box is electrically connected to the feed shovel cylinder, the first conveying and screening mechanism, the second conveying and screening mechanism, the lifting and conveying mechanism, the stone conveying mechanism, the rotating separation mechanism, and the collection box conveying mechanism. The present invention has a reasonable design, realizes automatic walking, automatic digging and sorting, and can automatically realize the collection of potatoes of different sizes, greatly reduces labor intensity, reduces labor costs, and speeds up production efficiency.

Description

Technical Field

[0001] The invention relates to the field of potato harvesters, in particular to a self-propelled integrated combined potato harvester. Background Art

[0002] The current crop planting model has undergone tremendous changes, from the traditional scattered and extensive planting by individual households to large-scale, scientific and professional planting. For example, the planting of crops such as potatoes, sweet potatoes, beets, garlic, and peanuts has become more and more large-scale and professional. The corresponding traditional way of harvesting crops by manual digging or livestock plowing has gradually been eliminated.

[0003] Harvesters for different crops are increasingly entering the field. At present, special potato harvesters are used for large-scale potato planting. Although the current potato harvesters have achieved a certain degree of mechanization and reduced labor intensity, most of them cannot automatically classify and collect fruits of different sizes. For a large number of harvested fruits, manual classification or reclassification with special machinery is required, which increases a lot of labor intensity. Summary of the invention

[0004] Aiming at the shortcomings of the prior art, the present invention provides a self-propelled integrated combined potato harvester, which solves the defects of the above-mentioned technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The self-propelled integrated combined potato harvester is characterized by comprising a steering traction mechanism, a feeding shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collecting box conveying mechanism;

[0007] The steering traction mechanism includes a crawler moving mechanism and a frame installed on the crawler moving mechanism; a feed shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collection box conveying mechanism are installed on the frame; a cab is provided on one side of the upper end surface of the frame, a control box and an operating handle are installed in the cab, the operating handle is electrically connected to the control box, and the control box is electrically connected to the feed shovel cylinder, the first conveying and screening mechanism, the second conveying and screening mechanism, the lifting and conveying mechanism, the stone conveying mechanism, the rotating separation mechanism, and the collection box conveying mechanism;

[0008] The feed shovel mechanism comprises a shovel frame movably mounted on the lower front side of the frame, and a feed shovel assembly is mounted on the shovel frame; a feed shovel cylinder is mounted on the frame, and the feed shovel cylinder is connected to the shovel frame through a transmission assembly;

[0009] The first conveying rotating mechanism comprises a first conveying shaft assembly and a vibrating screen mechanism mounted on a frame; a first conveying chain belt is mounted on the first conveying shaft assembly; and the vibrating screen mechanism is located above the first conveying chain belt;

[0010] The second conveying and screening mechanism comprises a second conveying shaft assembly installed in the frame, and a second conveying chain belt is installed on the second conveying shaft assembly; a vibration screening mechanism corresponding to the second conveying chain belt is installed on the frame;

[0011] The stone conveying mechanism comprises a stone conveying frame arranged at the lower part of the frame and corresponding to the first vibrating screen mechanism and the vibrating screening mechanism, and a stone conveying belt assembly is installed on the stone conveying frame;

[0012] The lifting and conveying mechanism comprises a lifting bracket mounted on a frame, a plurality of lifting and conveying rollers are mounted on the lifting bracket, and a lifting and conveying belt is mounted on all the lifting and conveying rollers; a lifting motor is mounted on the frame, and the lifting motor is connected to one of the lifting and conveying rollers through a transmission belt;

[0013] The rotary separation mechanism comprises a rotary frame mechanism installed at the rear of the frame, and the end of the lifting and conveying mechanism on the frame corresponds to the rotary frame mechanism; a large fruit conveyor belt mechanism and a small fruit unloading mechanism are installed on the frame; potatoes are transported to the rotary frame mechanism through the lifting and conveying mechanism to realize the separation of large fruits and small fruits; small fruit sorting rubber wheels and large fruit sorting rubber wheels corresponding to the rotary frame mechanism are installed on the frame; the small fruit sorting rubber wheels are arranged between the rotary frame mechanism and the small fruit unloading mechanism, and the small fruit sorting rubber wheels are arranged between the rotary frame mechanism and the large fruit conveyor belt mechanism;

[0014] The collection box conveying mechanism includes a main collection box conveying frame and a sub-collection box conveying frame arranged on the frame; a plurality of main collection box conveying rollers and a main collection motor drivingly connected to one of the main collection box conveying rollers are installed on the main collection box conveying frame; a main collection conveyor belt is installed on all the main collection box conveying rollers; the main collection box is installed at a position of the frame below the main collection conveyor belt; a plurality of sub-collection box conveying rollers and a sub-collection motor drivingly connected to one of the sub-collection box conveying rollers are installed on the sub-collection box conveying frame; a sub-collection conveyor belt is installed on all the sub-collection box conveying rollers; the sub-collection box is installed at a position of the frame below the sub-collection conveyor belt.

[0015] An optimized technical solution, the track moving mechanism includes a bracket connected to the center position of the lower part of the frame; support frames are installed on both sides of the bracket, a plurality of supporting rollers are arranged at the lower part of the support frame, and a driving gear and a driven gear are arranged on one side of the support frame, and a crawler is installed between the driving gear, the driven gear and the supporting rollers; a moving motor is arranged on the frame, and the moving motor is transmission-connected to a reducer, and the reducer is transmission-connected to the driving gear through a driving shaft.

[0016] An optimized technical solution, the feed shovel assembly includes a shovel mounting frame transmission connected to the feed shovel cylinder, and a plurality of feed shovels are installed on the shovel mounting frame by bolts; a shovel frame is installed at the lower part of the shovel mounting frame, and two shovel moving wheels are installed on the two side shafts of the shovel frame.

[0017] An optimized technical solution, wherein the first conveying shaft assembly comprises a plurality of first conveying shafts evenly mounted on a frame, and a first conveying motor is arranged on the frame, and the first conveying motor is connected to one of the first conveying shafts through a transmission belt; the vibrating screen mechanism comprises a vibrating base mounted on the frame, an inclined vibrating support is mounted on the vibrating base, a vibrating motor is mounted in the vibrating support, and the vibrating motor is connected to the vibrating screen through a connecting frame; the direction of the vibrating screen is consistent with the direction of the vibrating support; the front height of the vibrating screen and the vibrating support is higher than the rear height; the front of the vibrating screen is located below the rear of the feed shovel, and the front of the vibrating screen is located above the front of the first conveying chain belt.

[0018] An optimized technical solution, the second conveying shaft assembly includes a plurality of second conveying shafts evenly installed on the frame, and a second conveying motor is arranged on the frame, the second conveying motor is connected to one of the second conveying shafts through a transmission belt; the vibration screening mechanism includes a vibration connecting plate installed on the frame, a second vibration motor is arranged on the vibration connecting plate, and the second vibration motor is connected to a second vibration screen through a second connecting frame; the second vibration screen is located below the second conveying chain belt.

[0019] An optimized technical solution, the stone conveyor belt assembly includes a plurality of stone conveying rollers evenly installed in the stone conveying frame, and a stone conveying motor installed on one side of the stone conveying frame, and the stone conveying motor is connected to one of the stone conveying rollers through a transmission belt.

[0020] An optimized technical solution, the rotating frame mechanism includes an annular rotating frame with an axis installed at the rear end of the frame, and a rotating drive mechanism is installed on the machine base, and the rotating drive mechanism is transmission-connected to the annular rotating frame; a small fruit groove group and a large fruit groove group are arranged on the inner side of the annular rotating frame, the small fruit groove group corresponds to the small fruit sorting rubber wheel, and the large fruit groove group corresponds to the large fruit sorting rubber wheel; the small fruit sorting rubber wheel and the large fruit sorting rubber wheel are transmission-connected to sorting motors respectively.

[0021] An optimized technical solution, the small fruit groove group includes a plurality of small fruit grooves evenly arranged on the inner side of the annular rotating frame, and a protective rubber pad is arranged on the inner wall of each small fruit groove; all the small fruit grooves in the small fruit groove group are arranged in a ring shape; the small fruit groove group includes a plurality of small fruit grooves evenly arranged on the inner side of the annular rotating frame, and a protective rubber pad is arranged on the inner wall of each small fruit groove; all the small fruit grooves in the small fruit groove group are arranged in a ring shape.

[0022] An optimized technical solution, the rotary drive mechanism includes a rotary drive motor installed on a frame, a rotary gear is installed on the power output shaft of the rotary drive motor; a rack is provided on one side of the outer surface of the annular rotary frame, and the rotary gear meshes with the rack to realize power transmission.

[0023] The optimized technical solution is that the large fruit conveyor belt mechanism includes a large fruit conveying bracket installed on the frame and corresponding to the large fruit sorting rubber wheel, a plurality of large fruit conveying rollers are evenly arranged on the large fruit conveying bracket, all of the large fruit conveying rollers are connected to the large fruit conveying belt, and the outer end of the large fruit conveying belt corresponds to the main collecting conveying belt; a large fruit motor is arranged on one side of the large fruit conveying bracket, and the large fruit motor is connected to one of the large fruit conveying rollers through a transmission belt; the small fruit unloading mechanism includes a small fruit conveying bracket installed on the frame and corresponding to the small fruit sorting rubber wheel, a plurality of small fruit conveying rollers are evenly arranged on the small fruit conveying bracket, all of the small fruit conveying rollers are connected to the small fruit conveying belt, and the outer end of the small fruit conveying belt corresponds to the auxiliary collecting conveying belt; a small fruit motor is arranged on one side of the small fruit conveying bracket, and the small fruit motor is connected to one of the small fruit conveying rollers through a transmission belt. The optimized solution is that the driving mechanism includes a motor and a reducer installed on the mounting frame; the motor is connected to the reducer through transmission; the reducer is connected to the driving shaft through transmission; the end of the driving shaft is keyed to the driving gear.

[0024] Due to the adoption of the above technology, compared with the prior art, the beneficial effects of the present invention are:

[0025] The invention has reasonable design, realizes automatic walking, automatic digging and sorting, can automatically collect potatoes of different sizes, greatly reduces labor intensity, reduces labor costs, and speeds up production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall side structure of an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall front structure of an embodiment of the present invention;

[0028] Figure 3 It is a structural schematic diagram of a feeding shovel assembly in one embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a vibrating screen mechanism in one embodiment of the present invention;

[0030] Figure 5 A structural diagram of a vibration screening mechanism in one embodiment of the present invention

[0031] Figure 6 It is a structural schematic diagram of a rotating frame mechanism in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Example

[0034] like Figure 1-6 As shown, the self-propelled integrated combined potato harvester includes a steering and traction mechanism, a feeding shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collecting box conveying mechanism.

[0035] This embodiment is described in accordance with the order of potato harvesting, and the structure and working principle of this embodiment are introduced in detail.

[0036] The steering traction mechanism includes a crawler moving mechanism and a frame installed on the crawler moving mechanism. The crawler moving mechanism includes a bracket connected to the center position of the lower part of the frame. Support frames are installed on both sides of the bracket, and a plurality of supporting rollers are arranged at the lower part of the support frame, and a driving gear and a driven gear are arranged on one side of the support frame, and a crawler 11 is installed between the driving gear, the driven gear and the supporting roller. The frames 2 and 14 are provided with a moving motor, and the moving motor is connected to a reducer through a driving shaft. The reducer is connected to the driving gear through a driving shaft. When working, the moving motor transmits power through the reducer, the driving shaft and the driving gear in sequence to drive the crawler to realize the movement of the entire equipment. When the crawlers on both sides move at the same speed and in the same direction, the movement of the entire harvester is realized. When the crawlers on both sides move in the same direction but at different speeds, the steering of the entire harvester is realized, and it is turned toward the side of the crawler with a slower speed. When one crawler moves and the crawler on the other side does not move, the entire harvester realizes in-situ steering.

[0037] A feed shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collection box conveying mechanism are installed on the frames 2 and 14; a cab 16 is provided on one side of the upper end surface of the frame, and a control box and an operating handle are installed in the cab 16, the operating handle is electrically connected to the control box 15, and the control box 15 is electrically connected to the feed shovel cylinder, the first conveying and screening mechanism, the second conveying and screening mechanism, the lifting and conveying mechanism, the stone conveying mechanism, the rotating separation mechanism, and the collection box conveying mechanism.

[0038] The feeding shovel mechanism includes shovel frames 19 and 20 movably mounted on the lower front side of the frame, and a feeding shovel assembly is mounted on the shovel frames 19 and 20. A feeding shovel cylinder is mounted on the frame, and the feeding shovel cylinder is connected to the shovel frame 18 through a transmission assembly. The feeding shovel assembly includes a shovel mounting frame 21 that is connected to the feeding shovel cylinder, and a plurality of feeding shovels 1 are mounted on the shovel mounting frame 21 through bolts 22. A shovel frame 18 is mounted on the lower part of the shovel mounting frame, and two shovel moving wheels 17 are mounted on the two side shafts of the shovel frame 18. The feeding shovel cylinder controls the descent or lifting of the shovel frame, and relies on the shovel moving wheels 17 to achieve movement. Such a design can adjust and control the burial depth of the feeding shovel 1.

[0039] The first conveying rotating mechanism includes a first conveying shaft assembly and a vibrating screen mechanism installed on the frame. A first conveying chain is installed on the first conveying shaft assembly. The vibrating screen mechanism is located above the first conveying chain. The first conveying shaft assembly includes a plurality of first conveying shafts evenly installed on the frame, and a first conveying motor is arranged on the frame, and the first conveying motor is connected to one of the first conveying shafts through a transmission belt. The vibrating screen mechanism includes a vibrating base 23 installed on the frame, an oblique vibrating support 26 is installed on the vibrating base 23, a vibrating motor 24 is installed in the vibrating support 26, and the vibrating motor 24 is connected to the vibrating screen through a connecting frame 25. The direction of the vibrating screen is consistent with the direction of the vibrating support; the front height of the vibrating screen and the vibrating support is higher than the rear height. The front of the vibrating screen is located below the rear of the feeding shovel, and the front of the vibrating screen is located above the front of the first conveying chain. After the potatoes are dug out, the stems and leaves have been cut off, and the remaining potatoes are vibrated to remove soil and stones on the vibrating screen and the first conveying chain.

[0040] The second conveying and screening mechanism includes a second conveying shaft assembly installed in the frame, and a second conveying chain 32 is installed on the second conveying shaft assembly. A vibration screening mechanism corresponding to the second conveying chain 32 is installed on the frame. The second conveying shaft assembly includes a plurality of second conveying shafts 27 evenly installed on the frame, and a second conveying motor is arranged on the frame, and the second conveying motor is connected to one of the second conveying shafts through a transmission belt transmission. The vibration screening mechanism includes a vibration connecting plate 28 installed on the frame, and a second vibration motor 29 is arranged on the vibration connecting plate 28, and the second vibration motor 29 is connected to a second vibration screen 31 through a second connecting frame 30. The second vibration screen is located below the second conveying chain. The purpose of the vibration screening at this position is to disperse the potatoes to prevent the congestion of the potatoes causing congestion in the subsequent harvesting work.

[0041] The stone conveying mechanism includes a stone conveying frame arranged at the lower part of the frame and corresponding to the first vibrating screen mechanism and the vibrating screening mechanism, and a stone conveying belt assembly is installed on the stone conveying frame. The stone conveying belt assembly includes a plurality of stone conveying rollers evenly installed in the stone conveying frame, and a stone conveying motor installed on one side of the stone conveying frame, and the stone conveying motor is connected to one of the stone conveying rollers through a transmission belt. The stone conveying mechanism discharges the soil blocks, stones, etc. screened from the potatoes out of the frame to avoid damage to the equipment caused by accumulation.

[0042] The lifting and conveying mechanism includes a lifting bracket 10 installed on a frame, a plurality of lifting and conveying rollers are installed on the lifting bracket 10, and an integrated lifting and conveying belt is installed on all the lifting and conveying rollers; a lifting motor is installed on the frame, and the lifting motor is connected to one of the lifting and conveying rollers through a transmission belt.

[0043] The rotary separation mechanism includes a rotary frame mechanism 7 installed at the rear of the frame, and the end of the lifting and conveying mechanism on the frame corresponds to the rotary frame mechanism. The frame is equipped with a large fruit conveyor belt mechanism 6 and a small fruit unloading mechanism 4. Potatoes are transported to the rotary frame mechanism through the lifting and conveying mechanism to achieve the separation of large fruits and small fruits. The frame is equipped with a small fruit sorting rubber wheel and a large fruit sorting rubber wheel corresponding to the rotary frame mechanism. The small fruit sorting rubber wheel is arranged between the rotary frame mechanism and the small fruit unloading mechanism, and the small fruit sorting rubber wheel is arranged between the rotary frame mechanism and the large fruit conveyor belt mechanism.

[0044] The collection box conveying mechanism includes a main collection box conveying frame and a sub-collection box conveying frame 5 arranged on the frame. The main collection box conveying frame is equipped with a plurality of main collection box conveying rollers and a main collection motor connected to one of the main collection box conveying rollers. A main collection conveyor belt is installed on all the main collection box conveying rollers; the main collection box is installed at a position below the main collection conveyor belt on the frame. The sub-collection box conveying frame is equipped with a plurality of sub-collection box conveying rollers and a sub-collection motor connected to one of the sub-collection box conveying rollers; a sub-collection conveyor belt is installed on all the sub-collection box conveying rollers; the sub-collection box 5 is installed at a position below the sub-collection conveyor belt on the frame. The rotating frame mechanism includes an annular rotating frame 38 with an axis mounted on the rear end of the frame, and a rotating drive mechanism is mounted on the machine base, and the rotating drive mechanism is connected to the annular rotating frame. A small fruit groove group 40 and a large fruit groove group 39 are arranged on the inner side of the annular rotating frame, and the small fruit groove group corresponds to the small fruit sorting rubber wheel, and the large fruit groove group 40 corresponds to the large fruit sorting rubber wheel. The small fruit sorting rubber wheel and the large fruit sorting rubber wheel are respectively connected to sorting motors.

[0045] The small fruit groove group includes a plurality of small fruit grooves evenly arranged on the inner side of the annular rotating frame, and a protective rubber pad is arranged on the inner wall of each small fruit groove. All the small fruit grooves in the small fruit groove group are arranged in a ring; the small fruit groove group includes a plurality of small fruit grooves evenly arranged on the inner side of the annular rotating frame, and a protective rubber pad is arranged on the inner wall of each small fruit groove; all the small fruit grooves in the small fruit groove group are arranged in a ring. The rotary drive mechanism includes a rotary drive motor installed on the frame, and a rotary gear is installed on the power output shaft of the rotary drive motor; a rack is arranged on one side of the outer surface of the annular rotating frame, and the rotary gear meshes with the rack to realize power transmission. The large fruit conveyor belt mechanism includes a large fruit conveying bracket installed on the frame and corresponding to the large fruit sorting rubber wheel, and a plurality of large fruit conveying rollers are evenly arranged on the large fruit conveying bracket, and all the large fruit conveying rollers are connected to the large fruit conveyor belt 35, and the outer end of the large fruit conveyor belt 35 corresponds to the main collection conveyor belt. A large fruit motor 37 is arranged on one side of the large fruit conveying bracket 36, and the large fruit motor 37 is connected to one of the large fruit conveying rollers through a transmission belt. The small fruit unloading mechanism includes a small fruit conveying bracket installed on the frame and corresponding to the small fruit sorting rubber wheel, and a plurality of small fruit conveying rollers are evenly arranged on the small fruit conveying bracket, and all the small fruit conveying rollers are connected to a small fruit conveying belt, and the outer end of the small fruit conveying belt corresponds to the auxiliary collection conveying belt; a small fruit motor is arranged on one side of the small fruit conveying bracket, and the small fruit motor is connected to one of the small fruit conveying rollers through a transmission belt.

[0046] Take the harvest of potatoes as an example. It is pulled by two crawlers, and the conveyor belt power and hydraulic system all adopt existing technology. The feeding shovel turns the potatoes out, removes the vines, and uploads the potatoes to the conveyor chain belt and vibrates to fall into the soil. This process is repeated twice. The potatoes are then transported to the circular rotating rack for sorting. Potatoes with a diameter less than 45mm are set to fall into the small fruit groove, and potatoes with a diameter greater than 45mm fall into the large fruit groove, and then are transported to the corresponding auxiliary collection box and main collection box through the sorting rubber wheel.

[0047] The invention has reasonable design, realizes automatic walking, automatic digging and sorting, can automatically collect potatoes of different sizes, greatly reduces labor intensity, reduces labor costs, and speeds up production efficiency.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Self-propelled integrated combined potato harvester, characterized by: It includes a steering and traction mechanism, a feeding shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collecting box conveying mechanism; The steering traction mechanism includes a crawler moving mechanism and a frame installed on the crawler moving mechanism; a feed shovel mechanism, a first conveying and screening mechanism, a second conveying and screening mechanism, a lifting and conveying mechanism, a stone conveying mechanism, a rotating separation mechanism, and a collection box conveying mechanism are installed on the frame; a cab is provided on one side of the upper end surface of the frame, a control box and an operating handle are installed in the cab, the operating handle is electrically connected to the control box, and the control box is electrically connected to the feed shovel cylinder, the first conveying and screening mechanism, the second conveying and screening mechanism, the lifting and conveying mechanism, the stone conveying mechanism, the rotating separation mechanism, and the collection box conveying mechanism; The feed shovel mechanism comprises a shovel frame movably mounted on the lower front side of the frame, and a feed shovel assembly is mounted on the shovel frame; a feed shovel cylinder is mounted on the frame, and the feed shovel cylinder is connected to the shovel frame through a transmission assembly; The first conveying and screening mechanism comprises a first conveying shaft assembly and a vibrating screen mechanism mounted on a frame; a first conveying chain belt is mounted on the first conveying shaft assembly; the vibrating screen mechanism is located above the first conveying chain belt; The second conveying and screening mechanism comprises a second conveying shaft assembly installed in the frame, and a second conveying chain belt is installed on the second conveying shaft assembly; a vibration screening mechanism corresponding to the second conveying chain belt is installed on the frame; The stone conveying mechanism comprises a stone conveying frame arranged at the lower part of the frame and corresponding to the first vibrating screen mechanism and the vibrating screening mechanism, and a stone conveying belt assembly is installed on the stone conveying frame; The lifting and conveying mechanism comprises a lifting bracket mounted on a frame, a plurality of lifting and conveying rollers are mounted on the lifting bracket, and a lifting and conveying belt is mounted on all the lifting and conveying rollers; a lifting motor is mounted on the frame, and the lifting motor is connected to one of the lifting and conveying rollers through a transmission belt; The rotary separation mechanism comprises a rotary frame mechanism installed at the rear of the frame, and the end of the lifting and conveying mechanism on the frame corresponds to the rotary frame mechanism; a large fruit conveyor belt mechanism and a small fruit unloading mechanism are installed on the frame; potatoes are transported to the rotary frame mechanism through the lifting and conveying mechanism to realize the separation of large fruits and small fruits; small fruit sorting rubber wheels and large fruit sorting rubber wheels corresponding to the rotary frame mechanism are installed on the frame; the small fruit sorting rubber wheels are arranged between the rotary frame mechanism and the small fruit unloading mechanism, and the small fruit sorting rubber wheels are arranged between the rotary frame mechanism and the large fruit conveyor belt mechanism; The collection box conveying mechanism comprises a main collection box conveying frame and a sub-collection box conveying frame arranged on the frame; a plurality of main collection box conveying rollers and a main collection motor drivingly connected to one of the main collection box conveying rollers are installed on the main collection box conveying frame; a main collection conveyor belt is installed on all the main collection box conveying rollers; a main collection box is installed at a position of the frame below the main collection conveyor belt; a plurality of sub-collection box conveying rollers and a sub-collection motor drivingly connected to one of the sub-collection box conveying rollers are installed on the sub-collection box conveying frame; a sub-collection conveyor belt is installed on all the sub-collection box conveying rollers; a sub-collection conveyor belt is installed on the frame below the sub-collection conveyor belt; The rotating frame mechanism comprises an annular rotating frame with an axis installed at the rear end of the frame, and a rotating drive mechanism is installed on the machine base, and the rotating drive mechanism is connected to the annular rotating frame in a transmission manner; a small fruit groove group and a large fruit groove group are arranged on the inner side of the annular rotating frame, the small fruit groove group corresponds to the small fruit sorting rubber wheel, and the large fruit groove group corresponds to the large fruit sorting rubber wheel; the small fruit sorting rubber wheel and the large fruit sorting rubber wheel are respectively connected to sorting motors in a transmission manner; The small fruit groove group includes a plurality of small fruit grooves evenly arranged on the inner side of the annular rotating frame, and a protective rubber pad is arranged on the inner wall of each small fruit groove; all the small fruit grooves in the small fruit groove group are arranged in a ring shape; the small fruit groove group includes a plurality of small fruit grooves evenly arranged on the inner side of the annular rotating frame, and a protective rubber pad is arranged on the inner wall of each small fruit groove; all the small fruit grooves in the small fruit groove group are arranged in a ring shape; potatoes with a diameter less than 45 mm are set to fall into the small fruit grooves, and potatoes with a diameter greater than 45 mm are set to fall into the large fruit grooves.

2. The self-propelled integrated combined potato harvester according to claim 1, characterized in that: The crawler moving mechanism includes a bracket connected to the center position of the lower part of the frame; support frames are installed on both sides of the bracket, a plurality of supporting rollers are arranged at the lower part of the support frame, and a driving gear and a driven gear are arranged on one side of the support frame, and a crawler is installed between the driving gear, the driven gear and the supporting roller; a moving motor is arranged on the frame, and the moving motor is connected to a reducer through transmission of a driving shaft.

3. The self-propelled integrated combined potato harvester according to claim 2, characterized in that: The feeding shovel assembly comprises a shovel mounting frame drivingly connected to the feeding shovel cylinder, and a plurality of feeding shovels are mounted on the shovel mounting frame by bolts; a shovel frame is mounted at the lower part of the shovel mounting frame, and two shovel moving wheels are mounted on the two side shafts of the shovel frame.

4. The self-propelled integrated combined potato harvester according to claim 3, characterized in that: The first conveying shaft assembly includes a plurality of first conveying shafts evenly mounted on a frame, and a first conveying motor is arranged on the frame, and the first conveying motor is connected to one of the first conveying shafts through a transmission belt; the vibrating screen mechanism includes a vibrating base mounted on the frame, an oblique vibrating support is mounted on the vibrating base, a vibrating motor is mounted in the vibrating support, and the vibrating motor is connected to the vibrating screen through a connecting frame; the direction of the vibrating screen is consistent with the direction of the vibrating support; the front height of the vibrating screen and the vibrating support is higher than the rear height; the front of the vibrating screen is located below the rear of the feeding shovel, and the front of the vibrating screen is located above the front of the first conveying chain belt.

5. The self-propelled integrated combined potato harvester according to claim 4, characterized in that: The second conveying shaft assembly includes a plurality of second conveying shafts evenly mounted on a frame, and a second conveying motor is disposed on the frame, and the second conveying motor is connected to one of the second conveying shafts through a transmission belt; The vibration screening mechanism comprises a vibration connecting plate mounted on the frame, a second vibration motor is arranged on the vibration connecting plate, and the second vibration motor is connected to a second vibration screen via a second connecting frame; The second vibrating screen is located on the second conveyor chain.

6. The self-propelled integrated combined potato harvester according to claim 5, characterized in that: The stone conveyor belt assembly comprises a plurality of stone conveyor rollers evenly installed in the stone conveyor frame, and a stone conveyor motor installed on one side of the stone conveyor frame. The stone conveyor motor is connected to one of the stone conveyor rollers through a transmission belt.

7. The self-propelled integrated combined potato harvester according to claim 6, characterized in that: The rotary drive mechanism comprises a rotary drive motor mounted on a frame, a rotary gear being mounted on a power output shaft of the rotary drive motor; a rack is disposed on one side of the outer surface of the annular rotary frame, and the rotary gear meshes with the rack to realize power transmission.

8. The self-propelled integrated combined potato harvester according to claim 7, characterized in that: The large fruit conveyor belt mechanism comprises a large fruit conveying bracket installed on a frame and corresponding to the large fruit sorting rubber wheel, a plurality of large fruit conveying rollers are evenly arranged on the large fruit conveying bracket, all of the large fruit conveying rollers are commonly connected to the large fruit conveying belt, and the outer end of the large fruit conveying belt corresponds to the main collecting conveying belt; a large fruit motor is arranged on one side of the large fruit conveying bracket, and the large fruit motor is connected to one of the large fruit conveying rollers through a transmission belt; The small fruit unloading mechanism includes a small fruit conveying bracket installed on the frame and corresponding to the small fruit sorting rubber wheel, a plurality of small fruit conveying rollers are evenly arranged on the small fruit conveying bracket, all of the small fruit conveying rollers are commonly connected to a small fruit conveyor belt, and the outer end of the small fruit conveyor belt corresponds to the auxiliary collecting conveyor belt; a small fruit motor is arranged on one side of the small fruit conveying bracket, and the small fruit motor is connected to one of the small fruit conveying rollers through a transmission belt.

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