Novel peanut harvester

Abstract

The utility model discloses a novel peanut harvester, the lower part of its frame is provided with a pair of roller soil crushing components, and the seedling and fruit laying mechanism comprises left and right symmetrical left seedling and fruit laying and seedling turning over components and right seedling and fruit laying and seedling turning over components, and the left seedling and fruit laying and seedling turning over component and the right seedling and fruit laying and seedling turning over component are same in structure, the left seedling and fruit laying and seedling turning over component comprises a mounting frame connected with a machine frame, a power shaft connected with a power transmission mechanism in transmission is arranged on the mounting frame, a plurality of toothed discs are coaxially arranged on the power shaft and are uniformly distributed, a plurality of seedling turning over bars extending rearward are uniformly arranged on the mounting frame, the toothed discs are alternately arranged with the seedling turning over bars from left to right, and the diameters of the toothed discs arranged from right to left of the right seedling and fruit laying and seedling turning over component increase gradually. The application can effectively prevent the peanut seedlings and fruits from gathering to the center and then winding the roller, and improves the peanut harvesting efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically, it relates to a new type of peanut harvester. Background Technology

[0002] With the development of social technology, agricultural machinery is being used more widely in agricultural operations, becoming increasingly automated, fully integrated, and user-friendly. The same is true for peanut harvesters. From traditional manual digging to mechanical digging, and then to mechanized peanut harvesters, the mechanization of peanut harvesting has been achieved, improving labor efficiency, saving a significant amount of farming time, and effectively alleviating the excessive stress and high labor intensity faced by farmers during the harvest season.

[0003] Chinese utility model patent CN220545485U discloses a novel peanut harvester, including a frame, a power transmission mechanism, a depth-limiting roller, a shovel assembly, a soil-crushing roller, a conveyor chain ladder, and a vine-laying and turning mechanism. The power transmission mechanism is located in the middle of the upper front side of the frame. Depth-limiting frames are fixed to the left and right sides of the front end of the frame. The depth-limiting roller is rotatably mounted between the lower ends of the two depth-limiting frames. The shovel assembly is fixed to the lower front side of the frame. Swing arms are provided on the left and right sides of the lower front side of the frame. The soil-crushing roller is rotatably mounted between the rear ends of the two swing arms. The conveyor chain ladder is inclined at the rear of the middle of the frame, with a lower front and higher rear. The vine-laying and turning mechanism is located at the rear end of the frame. The power transmission mechanism is connected to the soil-crushing roller and the conveyor chain ladder, respectively. The conveyor chain ladder is connected to the vine-laying and turning mechanism. This peanut harvester has the following problems in actual operation: (1) Due to the simple structure of the seedling laying and turning mechanism, peanut seedlings are prone to accumulating and getting tangled in the rollers during the actual turning process.

[0004] (2) Since the soil crushing roller is set separately, the soil is crushed by the impact of soil blocks on the soil crushing roller. This method has a poor soil crushing effect and easily leads to the accumulation of peanut vines, which affects the peanut harvesting efficiency.

[0005] Therefore, a new type of peanut harvester is needed that can solve the problem of peanut vines gathering and getting tangled in the rollers during the laying and turning process, and can also improve the soil breaking effect. Utility Model Content

[0006] The purpose of this invention is to provide a new type of peanut harvester that can solve the problem of peanut vines gathering and getting tangled in the rollers during the laying and turning process, and can improve the soil breaking effect.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: A novel peanut harvester includes a frame, a power transmission mechanism, a depth-limiting roller, a shovel assembly, a conveyor chain ladder, and a vine-laying and turning mechanism. Lifting wheel frames are installed on the lower left and right sides of the rear side of the frame, with ground wheels installed at the lower ends of the lifting wheel frames. A lifting frame for assembly and connection with the hydraulic lifting arm at the rear end of the tractor is installed on the upper front part of the frame. The power transmission mechanism is located in the middle of the upper front side of the frame, and the tractor's power output shaft is connected to the power transmission mechanism. Depth-limiting frames, inclined at the front and lower at the rear, are fixed on the left and right sides of the front front of the frame. The depth-limiting roller is horizontally rotated and installed between the lower ends of the two depth-limiting frames. The shovel assembly is fixed on the lower front side of the frame and located below and behind the depth-limiting roller. The conveyor chain ladder, inclined at the front and lower at the rear, is located in the middle of the frame, with the front end of the conveyor chain ladder close to the rear end of the shovel assembly. The seedling laying and turning mechanism is located at the rear end of the vehicle frame and below the rear end of the conveyor chain ladder. The power transmission mechanism is connected to the roller soil crushing mechanism and the conveyor chain ladder respectively. The conveyor chain ladder is connected to the seedling laying and turning mechanism. The lower part of the vehicle frame is equipped with a roller soil crushing assembly. The seedling laying mechanism includes a left seedling laying and turning assembly and a right seedling laying and turning assembly arranged symmetrically on the left and right sides. The left seedling laying and turning assembly and the right seedling laying and turning assembly have the same structure. The left seedling laying and turning assembly includes a mounting frame that connects to the machine frame. The mounting frame is equipped with a power shaft that is connected to the power transmission mechanism. Several evenly distributed toothed discs are coaxially arranged on the power shaft. Several rearward-extending turning strips are evenly arranged on the mounting frame. The turning strips and toothed discs are arranged alternately. The diameter of the toothed discs increases from left to right. The diameter of the toothed discs in the right seedling laying and turning assembly increases from right to left.

[0008] The toothed plate includes a disc portion and several toothed corner portions evenly distributed along the outer edge of the disc portion. The front side of the toothed corner portion is a slanted straight side, and the rear side of the toothed corner portion is a rounded arc side.

[0009] The double-roller soil crushing assembly includes a soil crushing roller and a lower support roller. The soil crushing roller is positioned above the conveyor chain ladder, and a gap is provided between the soil crushing roller and the conveyor chain ladder. The lower support roller is positioned between the upper and lower chain ladders of the conveyor chain ladder.

[0010] The line connecting the center point of the soil crushing roller and the center point of the lower idler roller is perpendicular to the plane of the upper conveyor chain ladder.

[0011] The lower support roller includes a left shaft, a right shaft, a central shaft, a left roller, and a right roller. The left end of the left roller is connected to the right end of the left shaft, and the right end of the left roller is connected to the left end of the central shaft. The left end of the right roller is connected to the right end of the central shaft, and the right end of the right roller is connected to the left end of the right shaft. The left shaft is rotatably mounted on the left side of the frame via a corresponding left bearing, and the right shaft is rotatably mounted on the right side of the frame via a corresponding right bearing.

[0012] A left sprocket corresponding to the left chain of the conveyor chain ladder is installed on the left shaft, a right sprocket corresponding to the right chain of the conveyor chain ladder is installed on the right shaft, and a center sprocket corresponding to the center chain of the conveyor chain ladder is installed on the central shaft.

[0013] Several arc-shaped protrusions are evenly distributed on the outer contours of the left and right rollers.

[0014] The soil-crushing roller is mounted on the frame via a left swing arm and a right swing arm. The front end of the left swing arm is rotatably located on the left side of the frame. A left mounting plate is located below the left swing arm, and a left clearance adjustment component is installed on the left mounting plate. A left tension spring is installed between the left swing arm and the left mounting plate. The front end of the right swing arm is rotatably located on the right side of the frame. A right mounting plate is located below the right swing arm, and a right clearance adjustment component is installed on the right mounting plate. A right tension spring is installed between the right swing arm and the right mounting plate. The left and right clearance adjustment components have the same structure, both including a fixed nut, an adjusting screw, and a locking nut. The fixed nut is mounted on the frame, the adjusting screw is vertically positioned, and the lower end of the adjusting screw is threaded into the fixed nut. The locking nut is threaded onto the adjusting screw and presses against the upper end of the fixed nut. A rubber cap is installed on the upper end of the adjusting screw.

[0015] The rear center of the frame is provided with an arc-shaped cover plate that extends backward, and the arc-shaped cover plate is located between the left seedling laying and turning component and the right seedling laying and turning component.

[0016] The left vine-laying and turning component of this application has several evenly distributed toothed discs coaxially arranged on its power shaft. The diameter of the toothed discs increases from left to right, while the diameter of the toothed discs of the right vine-laying and turning component increases from right to left. The left and right vine-laying and turning components, which are arranged opposite each other, can turn and transport peanut vines from the center to the left and right sides. The diameter of the toothed discs of the left vine-laying and turning component increases from left to right, and the diameter of the toothed discs of the right vine-laying and turning component increases from right to left. That is, the diameter of the toothed discs gradually decreases from the center to the left and right sides. This can effectively prevent peanut vines from gathering towards the center and causing peanut vines to become entangled in the rollers, thereby improving peanut harvesting efficiency.

[0017] The soil-crushing assembly of this application includes a soil-crushing roller and a lower support roller. The lower support roller has a left sprocket on its left shaft corresponding to the left chain of the conveyor chain ladder, a right sprocket on its right shaft corresponding to the right chain of the conveyor chain ladder, and a central sprocket on its central shaft corresponding to the central chain of the upper conveyor chain ladder. This allows the left sprocket on the left shaft of the lower support roller to support the left chain of the conveyor chain ladder, the right sprocket on the right shaft of the lower support roller to support the right chain of the conveyor chain ladder, and the central sprocket on the central shaft of the lower support roller to support the central chain of the conveyor chain ladder. Furthermore, the left roller supports the left tube between the left chain and the central chain of the conveyor chain ladder, and the right roller supports the right tube between the right chain and the central chain of the conveyor chain ladder, improving the conveying stability of the conveyor chain ladder and ensuring the smooth harvesting of peanuts. In addition, when the soil-crushing roller crushes soil clods, the lower support roller supports the conveyor chain ladder upwards, causing the soil-crushing roller and the lower support roller to converge towards the conveyor chain ladder simultaneously, improving the soil-crushing effect.

[0018] In summary, this utility model adds a double-roller soil-crushing component to the existing peanut harvester, which can effectively improve the soil-crushing effect of the peanut harvester and thus improve the harvesting efficiency. In addition, this application improves the vine and fruit laying mechanism based on the existing peanut harvester, so that the diameter of the toothed disc of the vine and fruit laying mechanism gradually decreases from the center to both sides, which can effectively prevent the peanut vines and fruits from gathering towards the center and thus prevent the peanut vines from getting tangled in the rollers, thereby improving the peanut harvesting efficiency. Attached Figure Description

[0019] Figure 1 This is a left view of the peanut harvester of this utility model.

[0020] Figure 2 This is a right view of the peanut harvester of this utility model.

[0021] Figure 3 yes Figure 2 Enlarged view of the middle section.

[0022] Figure 4 This is a top view of the peanut harvester of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the dental disc of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the lower idler roller of this utility model. Detailed Implementation

[0025] like Figure 1-6As shown, the new peanut harvester includes a frame 1, a power transmission mechanism, a depth limiting roller 2, a shovel assembly 3, a soil-crushing roller 4, a conveyor chain ladder 5, and a seedling laying and turning mechanism 6. Lifting wheel frames 7 are installed on the lower left and right sides of the rear side of the frame 1, with ground wheels 8 installed at the lower end of the lifting wheel frames 7. A lifting frame 9 for assembly and connection with the hydraulic lifting arm at the rear end of the tractor is installed on the upper front side of the frame 1. The power transmission mechanism is located in the middle of the upper front side of the frame 1, and the tractor's power output shaft is connected to the power transmission mechanism. Depth limiting frames 10, with a lower front and higher rear angle, are fixed on the left and right sides of the front front of the frame 1. The depth limiting roller 2 is horizontally rotated and installed between the lower ends of the two depth limiting frames 10. The shovel assembly 3 is fixed on the lower front side of the frame 1 and located below and behind the depth limiting roller 2. The conveyor chain ladder 5 is inclined at the middle of the frame 1, with a lower front and higher rear angle. The front end of the conveyor chain ladder 5 is close to the rear end of the shovel assembly 3. The seedling laying and turning mechanism... 6 is located at the rear end of the frame 1 and below the rear end of the conveyor chain ladder 5. The power transmission mechanism is connected to the roller soil crushing mechanism and the conveyor chain ladder 5 respectively. The conveyor chain ladder 5 is connected to the seedling laying and turning mechanism 6. The lower part of the frame 1 is equipped with a roller soil crushing assembly. The seedling laying mechanism includes a left seedling laying and turning assembly and a right seedling laying and turning assembly arranged symmetrically on the left and right sides. The left seedling laying and turning assembly and the right seedling laying and turning assembly have the same structure. The left seedling laying and turning assembly includes a mounting frame 16 that connects to the frame. The mounting frame 16 is equipped with a power shaft 12 that is connected to the power transmission mechanism. Several evenly distributed toothed discs 11 are coaxially arranged on the power shaft 12. Several rearwardly extending turning strips 17 are evenly arranged on the mounting frame 16. The turning strips 17 and toothed discs 11 are arranged alternately. The diameter of the toothed discs 11 arranged from left to right increases sequentially. The diameter of the toothed discs 11 of the right seedling laying and turning assembly increases sequentially from right to left.

[0026] like Figure 5 As shown, eight toothed plates 11 are welded onto the drive shaft 12. Each toothed plate 11 includes a disc portion 13 and several toothed corner portions 14 evenly arranged along the outer edge of the disc portion 13. The front side 15 of the toothed corner portion 14 is a slanted straight side, and the rear side 45 of the toothed corner portion is a rounded side.

[0027] The double-roller soil-crushing assembly includes a soil-crushing roller 4 and a lower support roller 18. The soil-crushing roller 4 is positioned above the conveyor chain ladder 5, with a gap between it and the conveyor chain ladder 5. The lower support roller 18 is positioned between the upper and lower chain ladders of the conveyor chain ladder 5. A vibrating shaft 44 is also mounted on the frame 1. The vibrating shaft 44 is positioned between the upper and lower chain ladders of the conveyor chain ladder 5 and behind the lower support roller 18. A vibrating wheel is mounted on the vibrating shaft 44 and is in close contact with the upper chain ladder of the conveyor chain ladder 5. The vibrating shaft 44 drives the vibrating wheel to rotate, causing the upper chain ladder of the conveyor chain ladder 5 to vibrate up and down, thus shaking off the soil clumps.

[0028] The line connecting the center point of the soil crushing roller 4 and the center point of the lower support roller 18 is perpendicular to the plane of the upper chain ladder of the conveyor chain ladder 5.

[0029] The lower support roller 18 includes a left side shaft 26, a right side shaft 27, a central shaft 28, a left side roller 29, and a right side roller 30. The left end of the left side roller 29 is connected to the right end of the left side shaft 26, and the right end of the left side roller 29 is connected to the left end of the central shaft 28. The left end of the right side roller 30 is connected to the right end of the central shaft 28, and the right end of the right side roller 30 is connected to the left end of the right side shaft 27. The left side shaft 26 is rotatably mounted on the left side of the frame through a corresponding left side shaft 26 bearing, and the right side shaft 27 is rotatably mounted on the right side of the frame 1 through a corresponding right side shaft 27 bearing.

[0030] A left sprocket 32 ​​corresponding to the left chain of the conveyor ladder 5 is provided on the left shaft 26, a right sprocket 33 corresponding to the right chain of the conveyor ladder 5 is provided on the right shaft 27, and a center sprocket 34 corresponding to the center chain of the conveyor ladder 5 is provided on the center shaft 28.

[0031] Several arc-shaped protrusions 31 are evenly arranged on the outer contours of the left roller 29 and the right roller 30.

[0032] The soil-crushing roller 4 is mounted on the frame 1 via a left swing arm 35 and a right swing arm 36. The front end of the left swing arm 35 is rotatably located on the left side of the frame 1. A left mounting plate 37 is located below the left swing arm 35. A left clearance adjustment component 19 is located on the left mounting plate 37. A left tension spring 39 is located between the left swing arm 35 and the left mounting plate 37. The front end of the right swing arm 36 is rotatably located on the right side of the frame 1. A right mounting plate 38 is located below the right swing arm 36. A right clearance adjustment component 19 is located on the right mounting plate 38. A right tension spring 40 is located between the right swing arm 36 and the right mounting plate 38. The left and right clearance adjustment components 19 have the same structure, both including a fixing nut 20, an adjusting screw 22, and a locking nut 21. The fixing nut 20 is mounted on the frame 1. The adjusting screw 22 is vertically positioned, with its lower end threaded into the fixing nut 20. The locking nut 21 is threaded onto the adjusting screw 22 and presses against the upper end of the fixing nut 20. A rubber cap 23 is mounted on the upper end of the adjusting screw 22. The left and right clearance adjustment components 19 adjust the height of the upper end of the adjusting screw 22 by first loosening the locking nut 21 and then turning the adjusting screw 22. This adjusts the height position of the rear ends of the left swing arm 35 and the right swing arm 36, and the minimum clearance between the soil-crushing roller 4 and the lower support roller 18 is also adjusted accordingly. After adjustment, the locking nut 21 is tightened to fix the adjusting screw 22. The rubber cap 23 at the upper end of the adjusting screw 22 reduces the impact force between the left swing arm 35 and the right swing arm 36 on the adjusting screw 22 when the soil crushing roller 4 floats up and down, thus reducing vibration and noise.

[0033] An arc-shaped cover plate 46 extending rearward is provided at the middle of the rear end of the frame 1. The arc-shaped cover plate 46 is located between the left and right seedling laying and turning components of the seedling laying and turning mechanism 6.

[0034] The working process of this utility model is as follows: The lifting frame 9 at the front end of the chassis 1 is assembled and connected to the hydraulic lifting arm at the rear end of the tractor. Then, the power output shaft of the tractor is connected to the power input shaft of the gearbox 41. The distance between the ground wheel 8 and the chassis 1 is adjusted by the lifting wheel frame 7, thereby adjusting the height of the chassis 1. At the same time, the height of the depth limiting roller 2 is adjusted by the depth limiting frame 10, thereby controlling the depth of the shovel assembly 3 into the ground. The first drive shaft 24 drives the conveyor chain ladder 5 and the left-side separating roller 42 to rotate, and the second drive shaft 25 drives the right-side separating roller 43 to rotate. The conveyor chain ladder 5 drives the vibrating shaft 44, the soil-crushing roller 4, the lower support roller 18, and the seedling laying and turning mechanism 6 to work. Then, the tractor pulls the chassis 1 forward, and the shovel assembly 3 shovels up the peanut seedlings and soil clods in the soil. The separating rollers on both sides separate the shoveled peanut seedlings and push them onto the conveyor chain ladder 5 to prevent the peanut seedlings from getting tangled. When the peanut seedlings and soil clods are transported from the rear end of the shovel assembly 33 onto the conveyor chain ladder 5, they pass through... The soil-crushing roller 4, connected to the double-roller soil-crushing assembly, can move up and down according to the amount of peanut vines and soil clods passing beneath it. When the soil-crushing roller 4 crushes the soil clods, the lower support roller 18 supports the upper chain ladder of the conveyor chain ladder 5 to improve the soil-crushing effect of the roller 4. Furthermore, several arc-shaped protrusions 31 on the outer contour of the soil-crushing roller 4 can further enhance the soil-crushing effect without damaging the peanut vines. The soil-crushing roller 4 is located behind its hinge point during vertical movement, thus preventing it from jamming during forward movement. If the peanut vines and soil clods cannot be lifted, they are conveyed from the front bottom to the back top via the conveyor chain ladder 5. Finally, the peanut vines are sent to the rear vine laying and turning mechanism 6. The toothed disc 11 of the vine laying and turning mechanism 6 turns the peanut vines so that the fruit is facing up and the vine is facing down. The turning strip 17 is a turning grate that guides the turned peanut vines. In conjunction with the toothed disc 11, the vines are laid on the ground in the middle of the rear side of the frame 1. As the entire peanut harvester moves forward, the peanut harvesting operation is completed.

[0035] The left vine-laying and turning component of this application has several evenly distributed toothed discs 11 coaxially arranged on its power shaft 12. The diameter of the toothed discs 11 increases from left to right, and the diameter of the toothed discs 11 of the right vine-laying and turning component increases from right to left. The left and right vine-laying and turning components, which are arranged opposite each other, can turn and transport peanut vines from the center to the left and right sides. The diameter of the toothed discs 11 of the left vine-laying and turning component increases from left to right, and the diameter of the toothed discs 11 of the right vine-laying and turning component increases from right to left. That is, the diameter of the toothed discs 11 gradually decreases from the center to the left and right sides. This can effectively prevent peanut vines from gathering towards the center and causing peanut vines to become entangled in the rollers, thereby improving peanut harvesting efficiency.

[0036] The soil-crushing assembly of this application includes a soil-crushing roller 4 and a lower idler roller 18. A left sprocket 32 ​​corresponding to the left chain of the conveyor chain ladder 5 is mounted on the left side shaft 26 of the lower idler roller 18, and a right sprocket 33 corresponding to the right chain of the conveyor chain ladder 5 is mounted on the right side shaft 27. A central sprocket 34 corresponding to the central chain of the upper conveyor chain ladder 5 is mounted on the central shaft 28. This allows the left sprocket 32 ​​on the left side shaft 26 of the lower idler roller 18 to support the left chain of the conveyor chain ladder 5, and the right sprocket 33 on the right side shaft 27 of the lower idler roller 18 to support the right chain of the conveyor chain ladder 5. The central sprocket 34 on the central shaft 28 of the lower idler roller 18 can support the central chain of the conveyor chain ladder 5. Furthermore, the left roller 29 supports the left tube between the left chain and the central chain of the conveyor chain ladder 5, and the right roller 30 supports the right tube between the right chain and the central chain of the conveyor chain ladder 5, which improves the conveying stability of the conveyor chain ladder 5 and ensures the smooth harvesting of peanuts. In addition, when the soil crushing roller 4 squeezes the soil clods to crush the soil, the lower idler roller 18 supports the conveyor chain ladder 5 upwards, so that the soil crushing roller 4 and the lower idler roller 18 converge towards the conveyor chain ladder 5 at the same time, which improves the soil crushing effect.

[0037] In summary, this utility model adds a double-roller soil-crushing component to the existing peanut harvester, which can effectively improve the soil-crushing effect of the peanut harvester and thus improve the harvesting efficiency. In addition, this application improves the vine and fruit laying mechanism based on the existing peanut harvester, so that the diameter of the toothed disc 11 of the vine and fruit laying mechanism gradually decreases from the center to both sides, which can effectively prevent the peanut vines and fruits from gathering towards the center and thus prevent the peanut vines from getting tangled in the rollers, thereby improving the peanut harvesting efficiency.

[0038] It should be noted that the specific structures of the power transmission mechanism, depth limiting roller 2, shovel assembly 3 and conveyor chain ladder 5 in this utility model are the same as those of the peanut harvester with document number CN220545485U. Therefore, the specific structures of these parts will not be described in detail.

[0039] The above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the utility model without departing from the spirit and scope of the utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel peanut harvester, comprising a frame, a power transmission mechanism, a depth-limiting roller, a blade assembly, a soil-crushing roller, a conveyor chain ladder, and a seedling-laying and turning mechanism. Lifting wheel frames are installed on the lower left and right sides of the rear of the frame, with ground wheels mounted at their lower ends. A lifting frame for connection to the hydraulic lifting arm at the rear of a tractor is installed on the upper front of the frame. The power transmission mechanism is located in the middle of the upper front of the frame, with the tractor's power output shaft connected to it. Depth-limiting frames, inclined at the front and rear, are fixed on the left and right sides of the front of the frame. A depth-limiting roller is horizontally rotated and installed between the lower ends of the two depth-limiting frames. The blade assembly is fixed to the lower front of the frame and located below and behind the depth-limiting roller. The conveyor chain ladder is inclined at the front and rear of the frame, with its front end near the rear end of the blade assembly. The seedling-laying and turning mechanism is located at the rear of the frame and below the rear end of the conveyor chain ladder. The power transmission mechanism is connected to the soil-crushing roller mechanism and the conveyor chain ladder, respectively. The conveyor chain ladder is connected to the seedling-laying and turning mechanism. Its distinguishing feature is: The lower part of the frame is equipped with a double-roller soil-crushing assembly. The seedling laying mechanism includes a left seedling laying and turning assembly and a right seedling laying and turning assembly arranged symmetrically on the left and right sides. The left seedling laying and turning assembly and the right seedling laying and turning assembly have the same structure. The left seedling laying and turning assembly includes a mounting frame that connects to the frame. The mounting frame is equipped with a power shaft that connects to the power transmission mechanism. Several evenly distributed toothed discs are coaxially arranged on the power shaft. Several rearward-extending turning strips are evenly arranged on the mounting frame. The turning strips and toothed discs are arranged alternately. The diameter of the toothed discs increases from left to right. The diameter of the toothed discs of the right seedling laying and turning assembly increases from right to left.

2. The novel peanut harvester according to claim 1, characterized in that: The toothed plate includes a disc portion and several toothed corner portions evenly distributed along the outer edge of the disc portion. The front side of the toothed corner portion is a slanted straight side, and the rear side of the toothed corner portion is a rounded arc side.

3. The novel peanut harvester according to claim 2, characterized in that: The double-roller soil crushing assembly includes a soil crushing roller and a lower support roller. The soil crushing roller is positioned above the conveyor chain ladder, and a gap is provided between the soil crushing roller and the conveyor chain ladder. The lower support roller is positioned between the upper and lower chain ladders of the conveyor chain ladder.

4. The novel peanut harvester according to claim 3, characterized in that: The line connecting the center point of the soil crushing roller and the center point of the lower idler roller is perpendicular to the plane of the upper conveyor chain ladder.

5. The novel peanut harvester according to claim 4, characterized in that: The lower support roller includes a left shaft, a right shaft, a central shaft, a left roller, and a right roller. The left end of the left roller is connected to the right end of the left shaft, and the right end of the left roller is connected to the left end of the central shaft. The left end of the right roller is connected to the right end of the central shaft, and the right end of the right roller is connected to the left end of the right shaft. The left shaft is rotatably mounted on the left side of the frame via a corresponding left bearing, and the right shaft is rotatably mounted on the right side of the frame via a corresponding right bearing.

6. The novel peanut harvester according to claim 5, characterized in that: A left sprocket corresponding to the left chain of the conveyor chain ladder is installed on the left shaft, a right sprocket corresponding to the right chain of the conveyor chain ladder is installed on the right shaft, and a center sprocket corresponding to the center chain of the conveyor chain ladder is installed on the central shaft.

7. The novel peanut harvester according to claim 6, characterized in that: Several arc-shaped protrusions are evenly distributed on the outer contours of the left and right rollers.

8. The novel peanut harvester according to claim 7, characterized in that: The soil-crushing roller is mounted on the frame via a left swing arm and a right swing arm. The front end of the left swing arm is rotatably located on the left side of the frame. A left mounting plate is located below the left swing arm, and a left clearance adjustment component is installed on the left mounting plate. A left tension spring is installed between the left swing arm and the left mounting plate. The front end of the right swing arm is rotatably located on the right side of the frame. A right mounting plate is located below the right swing arm, and a right clearance adjustment component is installed on the right mounting plate. A right tension spring is installed between the right swing arm and the right mounting plate. The left and right clearance adjustment components have the same structure, both including a fixed nut, an adjusting screw, and a locking nut. The fixed nut is mounted on the frame, the adjusting screw is vertically positioned, and the lower end of the adjusting screw is threaded into the fixed nut. The locking nut is threaded onto the adjusting screw and presses against the upper end of the fixed nut. A rubber cap is installed on the upper end of the adjusting screw.

9. The novel peanut harvester according to claim 8, characterized in that: The rear center of the frame is provided with an arc-shaped cover plate that extends backward, and the arc-shaped cover plate is located between the left seedling laying and turning component and the right seedling laying and turning component.

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