Peanut sheller capable of automatically adjusting shelling gap

Abstract

The invention discloses a peanut sheller capable of automatically adjusting a shelling gap, relates to the technical field of peanut shelling, and aims to solve the problem that an existing peanut sheller cannot adjust the shelling gap according to the size of peanuts. Comprising a base, an upper supporting table, a lower supporting table, an inner barrel, an outer barrel and an air bellow, the upper supporting table is fixedly connected with the base through a supporting shaft, the lower supporting table is fixedly connected with the base, a rotating shaft is arranged on the outer side of the supporting shaft, and a driving mechanism for driving the rotating shaft to rotate is arranged on the base; the inner barrel comprises a plurality of inner barrel pieces evenly arranged in the circumferential direction, a telescopic connecting mechanism is arranged between the rotating shaft and the inner barrel pieces, and adjusting mechanisms for adjusting the radial positions of the inner barrel pieces are arranged on the upper supporting table and the lower supporting table. The outer barrel is arranged outside the inner barrel, a shelling cavity is formed between the outer barrel and the inner barrel, a through hole is formed in the side wall of the middle of the outer barrel, the air bellow is arranged outside the outer barrel, a discharging cavity is formed between the air bellow and the outer barrel, and the air bellow is connected with the fan through an air pipe. The shelling gap can be adjusted according to the size of peanuts.

Description

Technical Field

[0001] This invention relates to the field of peanut shelling technology, specifically a peanut shelling machine that automatically adjusts the shelling gap. Background Technology

[0002] In existing technologies, peanut shelling typically involves rubbing and squeezing. For example, the peanut shelling machine disclosed in Chinese patent CN222322747U uses a combination of a pressing rod and a screen to rub and squeeze the peanuts for shelling. However, the aforementioned existing technology has several drawbacks: the gap between the pressing rod and the screen is not adjustable, making it unsuitable for shelling peanuts of different sizes. Furthermore, the non-continuous rubbing between the pressing rod and the screen causes peanuts to accumulate at the lowest point of the screen, resulting in low shelling efficiency, easy damage to the peanuts, and a lack of dust removal functionality. Summary of the Invention

[0003] The purpose of this invention is to provide a peanut shelling machine with automatic adjustment of the shelling gap, which solves the problem that existing peanut shelling machines cannot adjust the shelling gap according to the size of the peanuts.

[0004] The technical solution adopted by this invention to solve its technical problem is: a peanut shelling machine with automatic adjustment of shelling gap, including a base, an upper support platform, a lower support platform, an inner barrel, an outer barrel, a bellows, and a detection component. The upper support platform, the lower support platform, and the base are arranged sequentially from top to bottom. The upper support platform and the base are fixedly connected by a support shaft. The lower support platform is fixedly connected to the base. The outer side of the support shaft has a rotating shaft that passes through the lower support platform vertically. The base has a drive mechanism that drives the rotating shaft to rotate in a horizontal plane. The inner barrel includes several inner barrel pieces evenly arranged circumferentially. The middle part of the inner barrel has a conical structure. The rotating shaft and the inner barrel pieces have a telescopic connection mechanism. When the rotating shaft rotates, the telescopic connection mechanism drives the inner barrel pieces to rotate synchronously. The upper support platform and the lower support platform have adjustment mechanisms for adjusting the radial position of the inner barrel pieces. The outer cylinder is positioned outside the inner cylinder, forming a shelling cavity between them. The upper end of the outer cylinder is the feeding end. The top of the upper support platform has a conical material leveling platform located inside the feeding end. After peanuts are poured onto the material leveling platform, they slide into the shelling cavity. The middle part of the outer cylinder is conical and parallel to the middle part of the inner cylinder. The side wall of the middle part of the outer cylinder has a through hole. The rotating inner cylinder and the stationary outer cylinder work together to rub the peanuts in the shelling cavity to remove their shells. The peanut shells and the shelled peanut seeds pass through the through hole and are removed from the outer cylinder. The bellows is positioned outside the outer cylinder, forming a discharge cavity between them. The bellows has a hollow structure and is connected to a blower through an air pipe. The inner wall of the bellows has an air hole communicating with the discharge cavity. The detection component is positioned on the inner cylinder or the outer cylinder and is used to detect the difference between the peanut's external dimensions and the gap in the shelling cavity.

[0005] Furthermore, the drive mechanism includes a shell-removing motor, a reducer, a worm gear, and a worm wheel. The shell-removing motor and the reducer are fixed on the base. The input end of the reducer is fixedly connected to the output shaft of the shell-removing motor, and the output end of the reducer is fixedly connected to the worm gear. The worm gear is rotatably connected to the lower support platform, and the worm wheel is fixedly connected to the rotating shaft. The worm gear and the worm wheel are meshed together.

[0006] Furthermore, the telescopic connection mechanism includes a radial rod, and both the upper and lower ends of the inner barrel plate have sliders. The first end of the radial rod is fixedly connected to the rotating shaft, and the second end of the radial rod extends into the corresponding slider and is slidably connected to the slider.

[0007] Furthermore, the adjustment mechanism includes an adjustment cylinder and a guide rail. An adjustment cylinder is fixedly mounted on both the upper support platform and the lower support platform, and a guide rail is slidably mounted on both platforms. The guide rail is fixedly connected to the piston rod of the adjustment cylinder. The guide rail has an arc-shaped groove. An adjustment column is fixed on the slider. The adjustment column extends into the arc-shaped groove of the corresponding guide rail, and a sliding pair is formed between the two.

[0008] Furthermore, the outer cylinder has an annular receiving tray at its lower part, the receiving tray is fixedly connected to the base, and the bottom of the receiving tray has a bottom hole.

[0009] Furthermore, the inner cavity of the receiving tray has a gear ring, on which two symmetrically arranged levers are fixed. A lever motor is fixed on the base, and a gear is fixed at the output end of the lever motor, which meshes with the gear ring.

[0010] Furthermore, the bellows comprises two identical halves, which are fixedly connected by bolts, and the bellows as a whole is cylindrical; a support rod is provided between the bellows and the base.

[0011] Furthermore, the lower part of the shelling cavity has a conical guide plate, the large end of which faces the discharge cavity or extends into the discharge cavity.

[0012] Furthermore, the inner cavity of the receiving tray is divided into an inner and outer peanut shell cavity and a peanut seed cavity. There are two bottom holes, one of which communicates with the peanut shell cavity and the other with the peanut seed cavity. The peanut shell cavity is located below the shelling cavity, and the peanut seed cavity is located below the discharge cavity. The inner cavity of the receiving tray has a gear ring. Two symmetrically arranged first deflector plates and two symmetrically arranged second deflector plates are fixed on the gear ring. The first deflector plates are located in the peanut seed cavity, and the second deflector plates are located in the peanut shell cavity. A deflector motor is fixed on the base. A gear is fixed at the output end of the deflector motor, and the gear meshes with the gear ring.

[0013] Furthermore, the outer wall of the inner barrel plate has bristles, which are used to clean the through holes and sweep the peanut seeds and shells; the detection component includes a pressure sensor, which is located on the outer wall of the inner barrel or the inner wall of the outer cylinder, and the pressure sensor is used to directly detect the pressure between the peanut and the inner barrel plate or between the peanut and the outer cylinder.

[0014] The beneficial effects of this invention are as follows: This invention uses an inner barrel and an outer barrel arranged inside and outside to work together to shell peanuts. The gap between the inner barrel and the outer barrel is adjustable, thus meeting the shelling needs of peanuts of different sizes and ensuring that the peanuts can be shelled. The bellows effectively absorbs the dust generated during the peanut shelling process. Furthermore, the bellows facilitates the movement of peanut seeds and shells through the through-holes and out of the outer barrel, preventing blockage of the through-holes. The conical sections on the inner barrel and outer barrel allow peanut seeds and shells to pass through the through-holes and out of the shelling chamber, preventing their accumulation within the shelling chamber. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a three-dimensional view of the inner barrel of the present invention; Figure 5 This is a top view of the inner tub of the present invention; Figure 6 This is a cross-sectional view of the receiving tray; Figure 7 This is a schematic diagram illustrating the working principle of the present invention; In the diagram: 1. Base, 11. Base mounting plate, 12. Base mounting ring, 13. Support ring, 14. Support shaft, 15. Upper support platform, 16. Material discharge chamber, 17. Bolt, 18. Support rod, 19. Deshelling chamber, 20. Material leveling platform, 2. Lower support platform, 21. Groove, 3. Rotating shaft, 31. Worm gear, 32. Worm, 33. Radial rod, 4. Inner barrel plate, 41. Slider, 42. Adjusting column, 43. Extrusion surface, 5. Outer cylinder, 51. Through hole, 52. Feeding end, 6. Air box, 61. Air hole, 62. Ear plate, 7. Adjusting cylinder, 71. Guide rail, 8. Deshelling motor, 81. Reducer, 9. Receiving plate, 91. Paddle plate, 92. Bottom hole, 93. Gear ring, 94. Paddle motor, 95. Paddle gear, 96. Gear housing, 10. Guide plate. Detailed Implementation

[0016] like Figures 1 to 7 As shown, the present invention includes a base 1, a lower support platform 2, a support shaft 14, an upper support platform 15, a rotating shaft 3, an inner barrel, an outer barrel 5, a bellows 6, an adjustment mechanism, a drive mechanism, a receiving tray 9, and a material leveling platform 20. The structure and working principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] like Figures 1 to 7 As shown, the peanut shelling machine with automatic adjustment of the shelling gap includes a base 1, an upper support platform 15, a lower support platform 2, an inner barrel, an outer barrel 5, and a bellows 6. Figure 3 As shown, the upper support platform 15, lower support platform 2, and base 1 are arranged sequentially from top to bottom. All three are cylindrical structures with different axial dimensions. The base 1 is the fundamental component of this invention. The bottom of the base 1 has a base mounting plate 11, which is fixedly connected to the ground foundation by anchor bolts. The top of the base 1 has a base mounting ring 12, which is threadedly connected to the lower support platform 2, thereby achieving a fixed connection between the base 1 and the lower support platform 2.

[0018] like Figure 3 As shown, the upper support platform 15 and the base 1 are fixedly connected by a support shaft 14. The bottom of the support shaft 14 is fixedly connected to the base 1, the lower middle part of the support shaft 14 passes through the lower support platform 2, and the top of the support shaft 14 is fixedly connected to the upper support platform 15. A rotating shaft 3 is located on the outer side of the support shaft 14, and the rotating shaft 3 is rotatably connected to the support shaft 14. The rotating shaft 3 passes vertically through the lower support platform 2, and the base 1 has a drive mechanism that drives the rotating shaft 3 to rotate in the horizontal plane. Figure 1 , Figure 3 As shown, the drive mechanism includes a shell-removing motor 8, a reducer 81, a worm gear 32, and a worm wheel 31. The shell-removing motor 8 and the reducer 81 are fixed on the base 1. The input end of the reducer 81 is fixedly connected to the output shaft of the shell-removing motor 8, and the output end of the reducer 81 is fixedly connected to the worm gear 32. The worm gear 32 is rotatably connected to the lower support platform 2, and the worm wheel 31 is fixedly connected to the rotating shaft 3. The worm gear 32 and the worm wheel 31 are meshed together. When the shell-removing motor 8 is working, the rotational motion is transmitted to the worm gear 32 after being reduced in speed by the reducer 81. The rotation of the worm gear 32 drives the rotation of the worm wheel 31, which in turn drives the rotation of the rotating shaft 3. A groove 21 is provided in the bottom surface of the lower support platform 2 to facilitate the assembly of the worm gear 32 and the worm wheel 31.

[0019] like Figure 4 , Figure 5As shown, the inner barrel includes several inner barrel pieces 4 evenly arranged circumferentially. The gap between two adjacent inner barrel pieces 4 is smaller than the thickness of the peanuts to prevent peanuts from getting stuck between the two inner barrel pieces 4. The upper part of the inner barrel piece 4 is columnar, the middle part of the inner barrel piece 4 is conical, the outer wall of the middle part of the inner barrel piece 4 is a pressing surface 43, the pressing surface 43 cooperates with the outer barrel 5 to press the peanuts, and the lower part of the inner barrel piece 4 is columnar. In this embodiment of the invention, there are four inner barrel pieces 4, and the central angle corresponding to each inner barrel piece 4 is 86-88 degrees. To prevent small peanut shells from entering the gap between adjacent inner barrel pieces 4, an elastic connecting band is provided between two adjacent inner barrel pieces 4 to block small peanut shells. The structure of the inner barrel piece 4 makes the middle part of the inner barrel conical. There is a telescopic connecting mechanism between the rotating shaft 3 and the inner barrel piece 4. Under the action of the telescopic connecting mechanism, the inner barrel piece 4 rotates synchronously with the rotating shaft 3, and the distance between the inner barrel piece 4 and the rotating shaft 3 is adjustable. When the rotating shaft 3 rotates, it drives the inner barrel plate 4 to rotate synchronously through the telescopic connection mechanism. The upper support platform 15 and the lower support platform 2 have adjustment mechanisms to adjust the radial position of the inner barrel plate 4.

[0020] like Figure 3 As shown, the telescopic connection mechanism includes a radial rod 33, such as Figure 4As shown, the inner barrel 4 has sliders 41 at both its upper and lower ends. The first end of the radial rod 33 is fixedly connected to the rotating shaft 3, and the second end of the radial rod 33 extends into the corresponding slider 41 and is slidably connected to the slider 41. The adjustment mechanism includes an adjustment cylinder 7 and a guide rail 71. The adjustment cylinder 7 is fixedly mounted on both the upper support platform 15 and the lower support platform 2, and the guide rail 71 is also slidably mounted on both the upper support platform 15 and the lower support platform 2. The guide rail 71 is fixedly connected to the piston rod of the adjustment cylinder 7, and the guide rail 71 has an arc-shaped groove. An adjustment column 42 is fixedly mounted on the slider 41. The adjustment column 42 extends into the arc-shaped groove of the corresponding guide rail 71, and the two form a sliding pair. When the piston rod of the adjustment cylinder 7 extends or retracts, it drives the guide rail 71 to move. When the guide rail 71 moves, it drives the adjustment column 42 to move, thereby pushing and pulling the slider 41 to move, and thus driving the inner barrel 4 to move radially along the rotating shaft 3. Both the upper support platform 15 and the lower support platform 2 have four adjusting cylinders 7 and four guide rails 71. The four guide rails 71 on the upper support platform 15 and the four guide rails 71 on the lower support platform 2 together form a circular track for the adjusting column 42 to rotate. The adjusting column 42 on the upper slider 41 of the inner barrel 4 moves along the four guide rails 71 on the upper support platform 15, and the adjusting column 42 on the lower slider 41 of the inner barrel 4 moves along the four guide rails 71 on the lower support platform 2. Before the adjusting column 42 has completely moved out of one of the guide rails 71 on the upper support platform 15, the adjusting column 42 has already entered the next guide rail 71 on the upper support platform 15, and thus the adjacent guide rail 71 plays a connecting role in guiding the adjusting column 42. Before the adjusting column 42 has completely moved out of one of the guide rails 71 on the lower support platform 2, the adjusting column 42 has already entered the next guide rail 71 on the lower support platform 2, and thus the adjacent guide rail 71 plays a connecting role in guiding the adjusting column 42. When the piston rod of the adjusting cylinder 7 extends or retracts, it changes the diameter of the circular track enclosed by the four guide rails 71, thereby changing the diameter of the adjusting column 42 during its circular motion, and thus changing the distance between the inner and outer cylinders 4. The adjusting cylinders 7 on the upper support platform 15 and the lower support platform 2 operate synchronously, and their extension and retraction amounts are consistent.

[0021] like Figure 3 As shown, the outer cylinder 5 is located outside the inner cylinder, forming a shelling cavity 19 between them. The upper end of the outer cylinder is the feeding end 52. The top of the upper support platform 15 has a conical material distribution platform 20, which is located inside the feeding end 52. Figure 7 As shown, after the peanuts are poured onto the equalization platform 20, they slide into the shelling chamber 19. To facilitate the processing and assembly of the equalization platform 20, the equalization platform 20 has a conical hollow structure with a smaller upper end and a larger lower end. The lower end of the equalization platform 20 is threadedly connected to the upper support platform 15.

[0022] like Figure 3As shown, the outer cylinder 5 has a conical middle section that is parallel to the middle section of the inner cylinder. The side wall of the middle section of the outer cylinder 5 has a through hole 51. The rotating inner cylinder works in conjunction with the fixed outer cylinder 5 to rub the peanuts located between them, thus removing their shells. The peanut shells and the shelled peanut seeds pass through the through hole 51 and exit the outer cylinder 5. The outer cylinder 5 comprises four sections arranged sequentially from top to bottom, with shapes of cylindrical, conical, conical, and cylindrical, respectively. The gap between the upper end of the outer cylinder 5 and the equalizing platform 20 is the largest, facilitating the entry of peanuts into the shelling chamber 19. The gap in the shelling chamber 19 between the middle section of the inner cylinder and the middle section of the outer cylinder 5 is the smallest. In this section, the inner cylinder and the outer cylinder 5 work together to shell the peanuts. The gap between the upper part of the inner cylinder and the upper part of the outer cylinder 5 in the shelling chamber 19 is between the gap between the upper end of the outer cylinder 5 and the equalizing platform 20 and the gap between the middle section of the inner cylinder and the middle section of the outer cylinder 5, serving as a transition. To enable the installation of the outer cylinder 5, the upper part of the outer cylinder 5 is fixedly connected to the upper support platform 15 by bolts 17.

[0023] like Figure 3 As shown, the bellows 6 is located outside the outer cylinder 5, forming a material discharge chamber 16 between them. The bellows 6 has a hollow structure and is connected to the blower via an air pipe. The inner wall of the bellows 6 has air holes 61 that communicate with the material discharge chamber 16. When the blower is working, a negative pressure is generated inside the bellows 6 through the air pipe, which causes dust and small peanut shells in the material discharge chamber 16 to enter the bellows 6, thus achieving dust removal. For ease of assembly, the bellows 6 consists of two identical halves, such as... Figure 1 , Figure 2 As shown, the bellows 6 has ear plates 62 at both ends, and the two halves of the bellows 6 are fixedly connected together by bolts passing through the ear plates 62. The bellows 6 is cylindrical in shape. To fix the bellows 6, a support rod 18 is provided between the bellows 6 and the base mounting plate 11 of the base 1.

[0024] To collect both the shelled peanuts and the peanut shells, a circular receiving tray 9 is installed below the outer cylinder 5. The receiving tray 9 is fixedly connected to the base 1. Figure 6 As shown, the bottom of the receiving tray 9 has a bottom hole 92. Peanut seeds and shells fall into the receiving tray 9, pushing them towards the bottom hole 92, allowing them to fall in a concentrated manner. To push the peanut seeds and shells towards the bottom hole 92, a gear ring 93 is provided in the inner cavity of the receiving tray 9. Two symmetrically arranged lever plates 91 are fixed on the gear ring 93. The lever plates 91 are in contact with both the inner side wall and the bottom wall of the receiving tray 9. A lever motor 94 is fixed on the base 1, and a gear 95 is fixed at the output end of the lever motor 94. The gear 95 meshes with the gear ring 93. After the lever motor 94 is started, the gear 95 rotates, thereby driving the rotation of the gear ring 93, which in turn drives the lever plates 91 to rotate within the receiving tray 9. During the rotation of the lever plates 91, they push the peanut seeds and shells. To achieve the assembly of the receiving tray 9, as shown... Figure 1 , Figure 3 As shown, a circular ring 13 is fixed to the outer wall of the base 1, the receiving tray 9 is placed on the ring 13, and the actuating motor 94 is fixed to the ring 13. To protect the gear 95, as shown... Figure 1 As shown, a gear housing 96 is fixed at the bottom of the support ring 13, and the gear 95 is located inside the gear housing 96.

[0025] During the shelling process, most peanut seeds and shells fall through the discharge chamber 16, while a smaller portion falls through the shelling chamber 19. To ensure that the peanut seeds and shells falling through the shelling chamber 19 also enter the feeding tray 9, a conical guide plate 10 is installed at the lower part of the shelling chamber 19. The smaller end of the guide plate 10 is fixedly connected to the outer wall of the inner barrel, while the larger end of the guide plate 10 faces the discharge chamber 16 or extends into the discharge chamber 16. The peanut seeds and shells in the shelling chamber 19 slide down the guide plate 10 and eventually fall into the receiving tray 9.

[0026] To achieve separate collection of peanut seeds and peanut shells, the inner cavity of the receiving tray 9 is divided into an inner and outer peanut seed cavity and a peanut shell cavity, both of which are annular cavities. The bottom of the receiving tray 9 has two bottom holes 92, arranged both internally and externally. One bottom hole 92 communicates with the peanut shell cavity, and the other bottom hole 92 communicates with the peanut seed cavity. The peanut shell cavity is located below the shelling cavity 19, and the peanut seed cavity is located below the discharge cavity 16. The inner cavity of the receiving tray 9 has a gear ring 93, on which four levers are fixed: two symmetrically arranged first levers and two symmetrically arranged second levers. The first levers are located inside the peanut seed cavity, and the second levers are located inside the peanut shell cavity. A lever motor 94 is fixed to the base 1 or the support ring 13. A gear 95 is fixed to the output end of the lever motor 94, and the gear 95 meshes with the gear ring 93. The size of the through hole 51 is set to be larger than the shape of the peanut seed but smaller than the shape of the peanut shell. At this time, most of the peanuts entering the feeding chamber 16 through the through hole 51 are peanut seeds. Most of the peanut shells falling through the shelling chamber 19 are peanut shells, which results in most of the peanut seeds falling into the peanut seed chamber and most of the peanut shells falling into the peanut shell chamber.

[0027] To clean the through-hole 51, bristles are installed on the outer wall of the inner barrel plate 4. These bristles clean the through-hole 51, preventing blockage, and also sweep the peanut shells and seeds, allowing them to fall through the through-hole 51. To detect the pressure between the outer cylinder 5 and the inner barrel, a pressure sensor, such as a strain gauge, is installed on the outer wall of the inner barrel plate 4. This pressure sensor detects the pressure between the peanut and the inner barrel plate 4. The pressure sensor forms a detection component that measures the difference between the peanut's dimensions and the gap in the shelling cavity 19. Alternatively, the pressure sensor can be installed on the inner wall of the outer cylinder 5, in which case it detects the pressure between the outer cylinder 5 and the peanut. Based on the pressure sensor's data, the size relationship between the shelling cavity 19 and the peanut can be calculated. When the pressure value detected by the pressure sensor exceeds a set threshold, it indicates that the peanut is large and the gap between the outer cylinder 5 and the inner barrel is small. In this case, the gap between the outer cylinder 5 and the inner barrel should be appropriately increased to prevent damage to the peanut. When the pressure value detected by the pressure sensor is lower than the set threshold, it indicates that the peanut size is small and the distance between the outer cylinder 5 and the inner cylinder is large. In this case, the distance between the outer cylinder 5 and the inner cylinder should be appropriately reduced to avoid incomplete shelling. The outer wall of the inner cylinder plate 4 can be made of rubber to prevent the peanuts from breaking under pressure.

[0028] The working principle of the present invention is as follows: (1) Peanuts are poured onto the equalization platform 20. At this time, the peanuts slide down the conical surface of the equalization platform 20 and then enter the shelling chamber 19. (2) The shelling motor 8 is started, and the rotating shaft 3 is driven by the drive mechanism to rotate the inner barrel. The rotating inner barrel and the stationary outer barrel work together to rub the peanuts in the shelling chamber 19, thereby achieving shelling. After the peanuts are shelled, peanut seeds and peanut shells are produced. The peanut seeds and peanut shells smaller than the size of the through hole 51 are moved out of the outer barrel 5 through the through hole 51 under their own weight and / or the action of the bellows. (3) The blower in the working state generates negative pressure in the bellows 6 through the air pipe, which generates suction force on the material discharge chamber 16, so that dust and fine peanut shells enter the bellows 6. (4) Adjust the gap of the shelling chamber 19 according to the detection data of the detection component; when the detection value of the detection component is large, it indicates that the gap of the shelling chamber 19 is smaller than the peanut shape, and the peanut seed breakage rate is high. The gap of the shelling chamber 19 should be increased, that is, the inner barrel plate 4 is driven to move towards the rotating shaft 3 by the adjustment mechanism. When the detection value of the detection component is small, it indicates that the gap of the shelling chamber 19 is not much different from the peanut shape, and the shelling is incomplete. The gap of the shelling chamber 19 should be decreased, that is, the inner barrel plate 4 is driven to move away from the rotating shaft 3 by the adjustment mechanism. The moving distance of the inner barrel plate 4 is calculated in millimeters. (5) After shelling is completed, the peanut seeds and peanut shells are screened, and the unshelled peanuts are picked out for shelling again.

[0029] This invention utilizes an inner barrel and an outer cylinder 5, arranged internally and externally, to shell peanuts. The gap between the inner barrel and the outer cylinder 5 is adjustable to accommodate peanuts of different sizes, ensuring successful shelling. A bellows 6 absorbs dust generated during the shelling process. The bellows 6 also facilitates the movement of peanut seeds and shells through the through-holes in the outer cylinder 5, preventing blockage. The conical sections on both the inner and outer cylinders allow peanut seeds and shells to fall through the through-holes, preventing accumulation within the shelling chamber 19. A detection component measures the difference between the gap in the shelling chamber 19 and the size of the peanuts, and an adjustment mechanism adjusts the gap between the inner and outer cylinders 5 to ensure effective shelling without damaging the peanut seeds.

Claims

1. A peanut shelling machine with automatic adjustment of the shelling gap, characterized in that, The system includes a base, an upper support platform, a lower support platform, an inner tub, an outer tub, a bellows, and a detection assembly. The upper support platform, lower support platform, and base are arranged sequentially from top to bottom. The upper support platform and base are fixedly connected by a support shaft, and the lower support platform is fixedly connected to the base. A rotating shaft is located on the outer side of the support shaft, passing vertically through the lower support platform. The base has a drive mechanism that rotates the rotating shaft in a horizontal plane. The inner tub includes several inner tub pieces evenly arranged circumferentially. The middle part of the inner tub has a conical structure. A telescopic connection mechanism connects the rotating shaft and the inner tub pieces. When the rotating shaft rotates, the telescopic connection mechanism drives the inner tub pieces to rotate synchronously. The upper and lower support platforms have adjustment mechanisms for adjusting the radial position of the inner tub pieces. The outer tub is located outside the inner tub, and the two are positioned in a [missing information - likely a specific configuration or structure]. The outer cylinder has a shelling chamber. The upper end of the outer cylinder is the feeding end. The top of the upper support platform has a conical material leveling platform. The material leveling platform is located inside the feeding end. After the peanuts are poured onto the material leveling platform, they slide into the shelling chamber. The middle part of the outer cylinder is conical and parallel to the middle part of the inner cylinder. The side wall of the middle part of the outer cylinder has a through hole. The rotating inner cylinder and the stationary outer cylinder work together to rub the peanuts in the shelling chamber to remove the shells. The peanut shells and the shelled peanut seeds pass through the through hole and are removed from the outer cylinder. The bellows is located on the outside of the outer cylinder, and a material discharge chamber is formed between the two. The bellows has a hollow structure and is connected to a blower through an air pipe. The inner wall of the bellows has an air hole that communicates with the material discharge chamber. The detection component is located on the inner cylinder or the outer cylinder and is used to detect the difference between the peanut's external dimensions and the gap between the shelling chamber.

2. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 1, characterized in that, The drive mechanism includes a shell-removing motor, a reducer, a worm gear, and a worm wheel. The shell-removing motor and the reducer are fixed on the base. The input end of the reducer is fixedly connected to the output shaft of the shell-removing motor, and the output end of the reducer is fixedly connected to the worm gear. The worm gear is rotatably connected to the lower support platform, and the worm wheel is fixedly connected to the rotating shaft. The worm gear and the worm wheel are meshed together.

3. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 1, characterized in that, The telescopic connection mechanism includes a radial rod, and the upper and lower ends of the inner barrel plate are both equipped with sliders. The first end of the radial rod is fixedly connected to the rotating shaft, and the second end of the radial rod extends into the corresponding slider and is slidably connected to the slider.

4. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 3, characterized in that, The adjustment mechanism includes an adjustment cylinder and a guide rail. An adjustment cylinder is fixed on both the upper support platform and the lower support platform, and a guide rail is slidably installed on both platforms. The guide rail is fixedly connected to the piston rod of the adjustment cylinder. The guide rail has an arc-shaped groove. An adjustment column is fixed on the slider. The adjustment column extends into the arc-shaped groove of the corresponding guide rail, and the two form a sliding pair.

5. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 1, characterized in that, The outer cylinder has a circular receiving tray at its bottom, which is fixedly connected to the base, and the bottom of the receiving tray has a bottom hole.

6. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 5, characterized in that, The receiving tray has a toothed ring inside its cavity, and two symmetrically arranged levers are fixed on the toothed ring. A lever motor is fixed on the base, and a gear is fixed at the output end of the lever motor. The gear meshes with the toothed ring.

7. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 1, characterized in that, The bellows consists of two identical halves, which are fixedly connected by bolts. The bellows is cylindrical in shape. A support rod is provided between the bellows and the base.

8. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 1, characterized in that, The lower part of the shelling cavity has a conical guide plate, the large end of which faces the discharge cavity or extends into the discharge cavity.

9. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 5, characterized in that, The inner cavity of the receiving tray is divided into an inner and outer peanut shell cavity and a peanut seed cavity. There are two bottom holes, one of which communicates with the peanut shell cavity and the other with the peanut seed cavity. The peanut shell cavity is located below the shelling cavity, and the peanut seed cavity is located below the discharge cavity. The inner cavity of the receiving tray has a toothed ring. Two symmetrically arranged first deflectors and two symmetrically arranged second deflectors are fixed on the toothed ring. The first deflectors are located in the peanut seed cavity, and the second deflectors are located in the peanut shell cavity. A toggle motor is fixed on the base. A gear is fixed at the output end of the toggle motor, and the gear meshes with the toothed ring.

10. The peanut shelling machine with automatic adjustment of the shelling gap according to claim 1, characterized in that, The outer wall of the inner barrel plate has bristles, which are used to clean the through holes and sweep the peanut seeds and shells; the detection component includes a pressure sensor, which is located on the outer wall of the inner barrel or the inner wall of the outer cylinder, and is used to directly detect the pressure between the peanut and the inner barrel plate or between the peanut and the outer cylinder.

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