Adjustable peanut shelling device

Abstract

An adjustable peanut shelling device, including a beating plate assembly, a sieve plate assembly, a driving motor, a wind tube, a hopper, a frame, wherein the adjustable beating plate assembly and the adjustable sieve plate assembly share a double-shaft motor for driving, reducing the control and driving components, the adjustable beating plate assembly is hinged at one end of the long beating plate and is hinged with a telescopic stand, adjusting the beating plate surface angle while adjusting the working gap between the beating plate and the sieve plate, having a large beating plate inclination angle at a small working gap and a small beating plate inclination angle at a large working gap, being able to adapt to small and large peanut varieties respectively, and being able to improve the shelling rate and reduce the peanut kernel breakage rate.

Description

TECHNICAL FIELD

[0001] The present application relates to a peanut processing equipment, in particular to a peanut shelling equipment. BACKGROUND

[0002] The drum beating plate type shelling equipment is a commonly used peanut shelling processing machine in China, and the shelling drum is the core component of the shelling equipment. In the shelling drum, the concave screen and the shelling beating plate are the main components. The aperture form and size of the concave screen directly determine the screening condition of the peanut pods, and the appropriate concave screen needs to meet the interception of the shelled peanut kernels and the unshelled peanut pods for further shelling. The shelling beating plate is the key part for contacting and shelling the peanut pods, and the inclination angle, surface morphology and position relationship with the concave screen of the beating plate determine the shelling rate and breakage rate of the shelling equipment.

[0003] Due to the large number of peanut planting varieties in China, the size and shape of the peanuts harvested in the same region are not the same, therefore, different aperture forms of the concave screen and different inclination angles of the beating plate need to be used for different peanut varieties. In the prior art, the screen and the beating plate are often detachable and are replaced when needed, but this operation method is low in efficiency and cannot automatically adapt to the shape of the peanuts entering the shelling equipment, nor can it achieve a relatively uniform shelling rate and breakage rate.

[0004] Therefore, it is necessary to design an adjustable peanut shelling equipment which can automatically adjust the screen hole size of the concave screen and the beating plate form to automatically adapt to peanuts of different shapes and varieties. SUMMARY

[0005] The present application relates to a peanut processing equipment, in particular to a peanut shelling equipment.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The adjustable peanut shelling device comprises a beating plate assembly, a sieve plate assembly, a driving motor, a wind tube, a hopper and a frame, wherein the beating plate assembly comprises a central shaft, a beating plate driving wheel and beating plate components; the central shaft comprises a square shaft section and a circular shaft section, four groups of beating plate components are arranged at both ends of the square shaft section, and the four groups of beating plate components are arranged on the four side surfaces of the square shaft section at the same side; the beating plate component comprises a fixed support column, a side ear plate, an extension column, a screw rod, a long beating plate and a driven bevel gear, the fixed support column is fixedly connected to the side surface of the square shaft section in the radial direction, the screw rod is arranged in the fixed support column, the end of the screw rod is rotatably connected to the side surface of the square shaft section through a bearing, the end of the screw rod is deep into the interior of the square shaft section and the driven bevel gear is fixedly arranged at the end, the other end of the screw rod is provided with the extension column through a nut, the end of the extension column extends out of the fixed support column, the side ear plate is arranged at the end of the fixed support column away from the square shaft section, and the long beating plate is connected with two beating plate components on the same side surface of the square shaft section, the long ear plate and the short ear plate are arranged on the inner side of the long beating plate facing the central shaft, the long ear plate is hinged to the side ear plate, and the short ear plate is hinged to the top end of the extension column.

[0008] Preferably, the sieve plate assembly comprises side plates arranged at both sides and a sieve plate arranged between the two side plates, the circular shaft sections at both sides of the central shaft are rotatably arranged on the two side plates through support bearings, the length of the circular shaft section is equal to the thickness of the side plate, and the length of the square shaft section is equal to the distance between the two side plates; the beating plate driving wheel is fixed to both ends of the central shaft and located outside the side plates.

[0009] Preferably, a double-shaft motor is fixed to the side of the beating plate driving wheel away from the sieve plate assembly, the double-shaft motor has left and right output shafts on the same axis, the axes of the left and right output shafts are collinear with the axis of the central shaft, the right output shaft of the double-shaft motor penetrates the center of the beating plate driving wheel and extends into the interior of the central shaft, an electric telescopic cylinder is arranged at the end of the right output shaft, and a driving bevel gear is fixedly arranged at the end of the electric telescopic cylinder.

[0010] Preferably, the sieve plate comprises an outer sieve plate and an inner sieve plate, the outer sieve plate and the inner sieve plate have long strip circular sieve holes with the same aperture and distribution mode; the outer sieve plate is fixedly arranged between the two side plates, and the inner sieve plate is movably arranged in the outer sieve plate; the inner sieve plate is limited in the interior of the outer sieve plate and the side plates at both sides, and the inner sieve plate can be displaced in the circumferential direction relative to the outer sieve plate.

[0011] Preferably, a limiting roller is arranged on the side of the side plate relative to the sieve plate, and the inner sieve plate is clamped between the limiting roller and the outer sieve plate.

[0012] Preferably, a ball clutch is arranged on the outer periphery of the left output shaft of the double-shaft motor, a winding drum is arranged on the outer periphery of the ball clutch, a steel cable is wound on the winding drum, the two ends of the steel cable extend out of the two sides of the winding drum, and the two ends of the steel cable are connected to the two ends of the inner sieve plate.

[0013] Preferably, the two side top ends of the inner sieve plate have connecting arms extending to the winding drum, and the ends of the steel cable are fixedly connected to the ends of the connecting arms.

[0014] Preferably, a locking cylinder is further arranged on the side plate and extends towards the end face of the winding drum.

[0015] Preferably, the beating plate assembly and the sieve plate assembly are arranged on the top of the rack, the driving motor is fixedly installed on the rack, the air cylinder is rotatably arranged on the rack, and the hopper is arranged below the sieve plate assembly.

[0016] Preferably, the driving motor drives the beating plate assembly and the air cylinder through a belt drive.

[0017] The present application has the following beneficial effects:

[0018] 1. The beating plate assembly with adjustable plate surface inclination and the sieve plate assembly with adjustable sieve hole size are arranged to adapt to different sizes of peanut varieties for shelling.

[0019] 2. The adjustable beating plate assembly and the adjustable sieve plate assembly share one double-shaft motor for driving, thereby reducing the control and driving components. The adjustable beating plate assembly is hingedly connected at one end of the long beating plate and at one end of the telescopic stand. The beating plate surface angle is adjusted while adjusting the working gap between the beating plate and the sieve plate. The beating plate has a large inclination angle when the working gap is small, and has a small inclination angle when the working gap is large. The beating plate can adapt to small and large peanut varieties respectively, and can improve the shelling rate and reduce the peanut kernel breakage rate.

[0020] 3. The size of the sieve hole is adjusted through the inner and outer sieve plates. The inner sieve plate is driven to rotate by the rotation of the output shaft of the double-shaft motor, and the rotation of the winding drum drives the two side steel wires to stretch and retract, thereby achieving the circumferential rotation of the inner sieve plate. The size adjustment of the sieve plate sieve hole is synchronized with the adjustment of the working gap and the beating plate inclination angle, thereby improving the automation degree and reducing the number of control components, and achieving the miniaturization of the equipment.

[0021] 4. The setting of the square shaft section can make the four beating plate assemblies synchronously adjusted through the four internal bevel gears. The setting of the electric telescopic cylinder realizes the separation of the beating plate adjustment and the actual shelling work of the beating plate. The setting of the ball clutch ensures that the double-shaft motor does not drive the winding drum to rotate during shelling. Meanwhile, the setting of the locking cylinder ensures that the locking cylinder is extended to lock the winding drum during the high-speed rotation of the beating plate assembly, so as to prevent unnecessary rotation of the winding drum from affecting the position of the inner sieve plate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the adjustable peanut shelling equipment of the present application;

[0023] Figure 2This is a structural diagram of the PCB assembly of this application;

[0024] Figure 3 This is a side view of the drive mechanism of the sieve plate assembly in this application;

[0025] Figure 4 This is a side view of the sieve plate assembly of this application;

[0026] Figure 5 This is a front view of the plate-making assembly and its drive mechanism in this application;

[0027] Figure 6 This is a front view of the drive structure of the sieve plate assembly in this application;

[0028] 1. Beating plate assembly; 2. Screen plate assembly; 3. Drive motor; 4. Air duct; 5. Hopper; 6. Frame; 11. Central shaft; 12. Beating plate drive wheel; 13. Beating plate assembly; 111. Square shaft section; 112. Round shaft section; 21. Side plate; 22. Outer screen plate; 23. Inner screen plate; 131. Fixed support column; 132. Side ear plate; 133. Telescopic column; 134. Screw; 135. Long strip beating plate; 136. Driven bevel gear; 1352. Long ear plate; 1351. Short ear plate; 14. Dual-shaft motor; 144. Left output shaft; 141. Right output shaft; 24. Limiting roller; 27. Ball clutch; 25. Drum; 26. Steel cable; 231. Connecting arm; 142. Electric telescopic cylinder; 143. Driven bevel gear; 28. Locking cylinder. Detailed Implementation

[0029] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings and preferred embodiments.

[0030] like Figure 1 The diagram shows the overall structure of the adjustable peanut shelling device of the present invention, which includes a striking plate assembly 1, a screen plate assembly 2, a drive motor 3, a blower 4, a hopper 5, and a frame 6. The striking plate assembly 1 is rotatably mounted on the screen plate assembly 2. The striking plate assembly 1 and the screen plate assembly 2 together constitute the shelling assembly, which is located on the top of the frame 6. The drive motor 3 is fixedly mounted on the frame 6. The blower 4 is also rotatably mounted on the frame 6. The hopper 5 is located below the screen plate assembly 2. The drive motor 3 drives the striking plate assembly 1 and the blower 4 to rotate via belt drive. Peanuts are shelled inside the screen plate assembly 2 by the striking and friction of the striking plate assembly 1. The shelled peanut kernels fall into the hopper 5 through the screen plate assembly 2. The high-speed rotation of the blower 4 generates negative pressure above the screen plate assembly 2, sucking the peeled peanut shells away from the screen plate assembly 2, thus completing the peanut shelling process. To accommodate different peanut sizes and improve the shelling rate, this invention also includes an adjustable beating plate assembly 1 and a sieve plate assembly 2, which will be described below in conjunction with... Figures 2-6 The adjustable beater assembly 1 and sieve assembly 2 of the present invention will be described.

[0031] The board assembly and its drive structure:

[0032] Combination Figure 4 and Figure 5 The plate-making assembly 1 and its driving structure of the present invention will be described. For example... Figures 4-5 As shown, the beating plate assembly 1 includes a central shaft 11, a beating plate drive wheel 12, and beating plate components 13. The screen plate assembly 2 includes side plates 21 disposed on both sides and a screen plate located between the two side plates 21. The central shaft 11 is a hollow shaft structure, including a square shaft section 111 and a circular shaft section 112. The square shaft section 111 is a square hollow steel tube shaft with a square cross-section. Circular shaft sections 112 are disposed on both sides of the square shaft section 111, and the circular shaft sections 112 are circular hollow steel tube shafts with a circular cross-section. The circular shaft sections 112 on both sides of the central shaft 11 are rotatably mounted on the two side plates 21 via support bearings 211. The length of the circular section 112 is equal to the thickness of the side plate 21, and the length of the square shaft section 111 is equal to the distance between the two side plates 21. Four sets of beating plate components 13 are disposed on the square shaft section 111, and the four sets of beating plate components 13 are respectively disposed on the four side surfaces of the square shaft section 111. The beating drive wheel 12 is a circular pulley, fixed at both ends of the central shaft 11 and located on the outer side of the side plate 21 (relative to the sieve plate). The drive motor 3 of the adjustable peanut shelling device drives the beating drive wheel 12 via a belt, thereby driving the central shaft 11 to rotate, which in turn drives the four sets of beating assemblies 13 to rotate inside the sieve plate assembly 2, striking and rubbing the peanuts.

[0033] Adjustable plate-making assembly:

[0034] The following is combined Figure 2 , Figure 5 The adjustable plate-making assembly of the present invention will be described below. For example... Figure 2 , 5As shown, four sets of striking plate assemblies 13 are provided at both ends of the square shaft section 111. On the same side, the four sets of striking plate assemblies 13 are respectively provided on the four sides of the square shaft section 111. Taking one of the striking plate assemblies 13 as an example, it includes a fixed support column 131, a side ear plate 132, a telescopic column 133, a screw 134, a long striking plate 135, and a driven bevel gear 136. Among them, the fixed support column 131 is a cylindrical hollow steel tube structure, which is radially fixedly connected to the side surface of the square shaft section 111. The screw 134 is provided inside the fixed support column 131. The end of the screw 134 is rotatably mounted on the side surface of the square shaft section 111 through a bearing. At the same time, the end of the screw 134 extends into the interior of the square shaft section 111 and the driven bevel gear 136 is fixedly installed at this end. The other end of the screw 131 is fitted with a telescopic column 133 via a nut 1331. The driven bevel gear 136 rotates, causing the screw 131 to rotate. The rotation of the screw 131 causes the nut 1331 to move inside the fixed support column 131, thereby causing the telescopic column 133 to extend and retract relative to the fixed support column 131. The end of the telescopic column 133 extends out of the fixed support column 131. A side ear plate 132 is provided at the end of the fixed support column 131 away from the square shaft section 111. The long strip striking plate 135 is a long strip plate structure, which is arranged along the axis of the central shaft 11. The long strip striking plate 135 is connected to two striking plate assemblies 13 on the same side surface of the square shaft section 111. A long ear piece 1352 and a short ear piece 1351 are respectively provided on the inner side of the long strip striking plate 135 facing the central shaft 11. The long ear piece 1352 is hinged to the side ear plate 132, and the short ear piece 1351 is hinged to the top of the telescopic column 133. When the telescopic column 133 moves telescopically relative to the fixed support column 131, the angle between the surface of the long strip beater 135 and the fixed support column 131 can be adjusted, that is, the angle between the surface of the long strip beater 135 and the screen plate can be adjusted.

[0035] Since the position of the central shaft 11 relative to the sieve plate assembly 2 is fixed in this invention, when the angle between the surface of the long strip beating plate 135 and the sieve plate increases, the distance between the surface of the long strip beating plate 135 and the sieve plate decreases, that is, the working gap between the beating plate and the sieve plate decreases. According to actual production, a small working gap is suitable for shelling small-particle peanut varieties, while a relatively large working gap is suitable for shelling large-particle peanut varieties. However, a small working gap increases the damage rate of peanut kernels. Therefore, in this invention, when the telescopic column 133 extends relative to the fixed support column 131, although the working gap between the striking plate and the sieve plate is reduced, the angle between the surface of the adjustable strip striking plate 135 and the sieve plate is increased. When this angle increases, the frontal impact between the peanut and the side surface of the strip striking plate 135 can be effectively reduced, allowing the upper surface of the strip striking plate 135 to contact the peanut more, converting the original frontal impact into more crushing and frictional action, reducing the impact force on the peanut pods, and thus reducing the damage rate of peanut kernels, offsetting the risk of increased kernel damage caused by a smaller working gap. Conversely, when shelling large-kernel peanut varieties, the retracting of the telescopic column 133 relative to the fixed support column 131 increases the working gap between the beating plate and the sieve plate to accommodate the size of large-kernel peanuts. However, the larger working gap reduces the shelling rate of peanut pods. At this time, the angle between the surface of the long beating plate 135 and the sieve plate becomes smaller, increasing the frontal impact on the side surface of the long beating plate 135 and increasing the impact force on the peanut pods. This appropriately improves the shelling rate of peanut pods to offset the risk of reduced shelling rate caused by the increased working gap. The above is the working principle of the adjustable beating plate assembly 13 of the present invention.

[0036] Since the four sets of striking plate assemblies 13 are respectively arranged on the four sides of the square shaft section 111, four driven bevel gears 136 in the same position inside the square shaft section 111 are arranged. In order to synchronously drive the striking plate assemblies 13 in the four directions, the present invention also provides a corresponding striking plate synchronous drive mechanism. Figure 5As shown, a dual-axis motor 14 is fixed on the side of the beater drive wheel 12 facing away from the screen assembly 2. The dual-axis motor 14 has a left output shaft 144 and a right output shaft 141 on the same axis in two directions. The axes of the left output shaft 144 and the right output shaft 141 are collinear with the axis of the central shaft 11. The right output shaft 141 of the dual-axis motor 14 passes through the center of the beater drive wheel 12 and extends into the interior of the central shaft 11. An electric telescopic cylinder 142 is provided at the end of the right output shaft 141. A drive bevel gear 143 is fixedly installed at the end of the electric telescopic cylinder 142. When the electric telescopic cylinder 142 extends, the drive bevel gear 143 can simultaneously mesh with the driven bevel gears 136 in four directions. At this time, the dual-axis motor 14 works to make the right output shaft 141 rotate, which can drive the driven bevel gears 136 in four directions to rotate synchronously, thereby driving the four sets of beater assemblies 13 to move synchronously. After the position of the beater assembly 13 is adjusted, the electric telescopic cylinder 142 retracts, the drive bevel gear 143 disengages from the driven bevel gears 136 in four directions, and then the beater drive wheel 12 rotates to drive the central shaft 11 to rotate.

[0037] Adjustable sieve plate assembly:

[0038] The size of the sieve holes on the sieve plate determines the size of the filtered peanut kernels. Therefore, to accommodate peanut pod varieties of different sizes, this invention also includes an adjustable sieve plate assembly 2. As described above, the sieve plate assembly 2 includes side plates 21 disposed on both sides and a sieve plate located between the two side plates 21. Figure 4 As shown, the sieve plate is further divided into an outer sieve plate 22 and an inner sieve plate 23. Both the outer sieve plate 22 and the inner sieve plate 23 have elongated circular sieve holes with the same aperture and distribution pattern. Both the outer sieve plate 22 and the inner sieve plate 23 are semi-cylindrical mesh sieve plate structures. The outer sieve plate 22 is fixedly disposed between the two side plates 21, and the inner sieve plate 23 is movably disposed inside the outer sieve plate 22. The inner sieve plate 23 is confined within the side plates 21 and the outer sieve plate 22, and can move circumferentially relative to the outer sieve plate 22. A limiting roller 24 is provided on one side of the side plate 21 opposite to the sieve plate, and the inner sieve plate 23 is sandwiched between the limiting roller 24 and the outer sieve plate 22. When the inner sieve plate 23 moves circumferentially relative to the outer sieve plate 22, the sieve holes on the inner sieve plate 23 and the outer sieve plate 22 can overlap or stagger. When the sieve holes of the inner sieve plate 23 and the outer sieve plate 22 coincide, the sieve plate assembly 2 has the largest filter sieve hole size, which can adapt to peanuts with large particles. When the sieve holes of the inner sieve plate 23 and the outer sieve plate 22 are misaligned, the actual sieve hole size that passes through is reduced due to the misalignment of the sieve holes of the inner and outer sieve plates, which can adapt to peanuts with small particles.

[0039] Inner sieve plate driving method:

[0040] The following is combined Figure 3 , Figure 5 and Figure 6The circumferential movement of the inner sieve plate 23 of the present invention will be described. For example... Figure 5 As shown, a ball clutch 27 is fitted around the outer periphery of the left output shaft 144 of the dual-shaft motor 14, and a drum 25 is fitted around the outer periphery of the ball clutch 27. A steel cable 26 is wound on the drum 25. Figure 3 As shown, steel cable 26 is wound around drum 25, with both ends of steel cable 26 extending from both sides of the drum and connected to the two ends of inner screen plate 23. Figure 6 As shown, the inner screen plate 23 has connecting arms 231 extending towards the drum 25 at both top ends, and the ends of the steel cables 26 are fixedly connected to the ends of the connecting arms 231. The ball clutch 27 can be locked and released. When the ball clutch 27 is locked, the drum 25 can rotate with the rotation of the left output shaft 144; when the ball clutch 27 is released, the drum 25 can rotate freely with the left output shaft 144, meaning the drum 25 does not rotate when the left output shaft 144 rotates. When the drum 25 rotates, it can cause the steel cables 26 extending from both sides of the drum 25 to retract or release, thereby causing the inner screen plate 23 to move circumferentially, thus adjusting the actual screen aperture size of the screen plate assembly 2. This invention can adjust the rotation direction of the dual-axis motor 14, the rotation direction of the screw 134, and the winding direction of the steel cable 26 on the drum 25. When the bidirectional motor 14 rotates clockwise, the telescopic column 133 extends relative to the fixed support column 131, reducing the working gap between the beating plate and the sieve plate, increasing the inclination angle of the long beating plate 135, and simultaneously rotating the inner sieve plate 23 circumferentially to reduce the overlap of the sieve holes of the inner sieve plate 23 and the outer sieve plate 22, thereby reducing the actual sieve hole size of the sieve plate assembly 2, thus adapting to peanut varieties with small particle sizes. At the same time, when the bidirectional motor 14 rotates counterclockwise, the telescopic column 133 retracts relative to the fixed support column 131, increasing the working gap between the beating plate and the sieve plate, reducing the inclination angle of the beating plate 135, and simultaneously rotating the inner sieve plate 23 circumferentially in the opposite direction to increase the overlap of the sieve holes of the inner sieve plate 23 and the outer sieve plate 22, thereby increasing the actual sieve hole size of the sieve plate assembly 2, thus adapting to peanut varieties with larger particle sizes.

[0041] After the electric telescopic cylinder 142 retracts, disengaging the drive bevel gear 143, the drive motor 3 drives the beater drive wheel 12 via a belt. Since the dual-axis motor 14 is fixed to the end face of the beater drive wheel 12, it rotates along with the beater drive wheel 12. At this time, the ball clutch 27 is released to ensure that the rotation of the dual-axis motor 14 does not drive the drum 25 to rotate. Simultaneously, to lock the drum 25 and prevent the dual-axis motor 14 from driving it, a locking cylinder 28 extending towards the end face of the drum 25 is also provided on the side plate 21. Figure 5 and Figure 6As shown, the locking cylinder 28 can extend to lock the drum 25 during the high-speed rotation of the beater assembly 1 to prevent its unnecessary rotation from affecting the position of the inner screen plate 23.

[0042] In summary, this invention adapts to peanut varieties of different sizes for shelling by incorporating an adjustable beating plate assembly with an adjustable beating plate inclination angle and a screen plate assembly with adjustable screen hole size. The adjustable beating plate assembly and the adjustable screen plate assembly share a single dual-shaft motor for drive, reducing the number of control and drive components. The adjustable beating plate assembly, by hinged at one end of a long beating plate and at the other end to a telescopic column, adjusts the beating plate angle while simultaneously adjusting the working gap between the beating plate and the screen plate. It features a large beating plate inclination angle at small working gaps and a small beating plate inclination angle at large working gaps, thus adapting to both small and large peanut varieties and achieving a balance between improving shelling efficiency and reducing peanut kernel breakage. The size of the screen holes is adjusted by using inner and outer screen plates. The inner screen plate is driven by the rotation of the output shaft on one side of the dual-shaft motor, which in turn drives the drum to rotate. The rotation of the drum then drives the extension and retraction of the steel wire ropes on both sides to achieve circumferential rotation of the inner screen plate. This allows for synchronous adjustment of the screen hole size, working gap, and plate tilt angle, improving automation and reducing the number of control components, thus achieving equipment miniaturization. The square shaft section allows the four-way plate-beating assembly to be synchronously adjusted via four internal bevel gears. The electric telescopic cylinder separates the plate-beating adjustment from the actual shell-removing operation. The ball clutch ensures that the dual-shaft motor rotates during shell removal without driving the drum. Simultaneously, the locking cylinder extends to lock the drum during high-speed rotation of the plate-beating assembly, preventing unnecessary rotation from affecting the position of the inner screen plate.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable peanut shelling device, comprising a beating plate assembly, a screen plate assembly, a drive motor, a blower, a hopper, and a frame, characterized in that, The striking assembly includes a central shaft, a striking drive wheel, and striking components. The central shaft comprises a square shaft section and a round shaft section. Four sets of striking components are installed at both ends of the square shaft section, with the four sets of striking components respectively located on the four sides of the square shaft section on the same side. Each striking component includes a fixed support column, side lugs, a telescopic column, a screw, a long striking plate, and a driven bevel gear. The fixed support column is radially fixed to the side surface of the square shaft section. A screw is installed inside the fixed support column, and the end of the screw is rotatably mounted to the square shaft section via a bearing. On the side surface of the segment, the end of the screw extends into the interior of the square shaft segment and a driven bevel gear is fixedly installed at that end; the other end of the screw is fitted with a telescopic column via a nut; the end of the telescopic column extends out of the fixed support column; a side ear plate is provided at the end of the fixed support column away from the square shaft segment; the long strip striking plate is connected to two striking plate assemblies on the same side surface of the square shaft segment, and a long ear and a short ear are respectively provided on the inner side of the long strip striking plate facing the central axis, the long ear is hinged to the side ear plate, and the short ear is hinged to the top of the telescopic column.

2. The adjustable peanut shelling device as described in claim 1, characterized in that: The sieve plate assembly includes side plates on both sides and a sieve plate located between the two side plates. The circular shaft sections on both sides of the central shaft are rotatably mounted on the two side plates through support bearings. The length of the circular shaft section is equal to the thickness of the side plate, and the length of the square shaft section is equal to the distance between the two side plates. The plate-beating drive wheel is fixed at both ends of the central shaft and located on the outside of the side plate.

3. The adjustable peanut shelling device as described in claim 2, characterized in that: A dual-axis motor is fixed on the side of the beater drive wheel facing away from the screen assembly. The dual-axis motor has a left output shaft and a right output shaft on the same axis in two directions. The axes of the left and right output shafts are collinear with the axis of the central shaft. The right output shaft of the dual-axis motor passes through the center of the beater drive wheel and extends into the interior of the central shaft. An electric telescopic cylinder is provided at the end of the right output shaft, and a drive bevel gear is fixedly installed at the end of the electric telescopic cylinder.

4. The adjustable peanut shelling device as described in claim 3, characterized in that: The sieve plate includes an outer sieve plate and an inner sieve plate. Both the outer sieve plate and the inner sieve plate have elongated circular sieve holes with the same aperture and distribution pattern. The outer sieve plate is fixedly set between two side plates, and the inner sieve plate is movably set inside the outer sieve plate. The inner sieve plate is confined within the side plates on both sides and the outer sieve plate. The inner sieve plate can be circumferentially displaced relative to the outer sieve plate.

5. An adjustable peanut shelling device as described in claim 4, characterized in that: A limiting roller is provided on one side of the side plate relative to the screen plate, and the inner screen plate is sandwiched between the limiting roller and the outer screen plate.

6. The adjustable peanut shelling device as described in claim 5, characterized in that: A ball clutch is fitted around the left output shaft of the dual-shaft motor, and a drum is fitted around the ball clutch. A steel cable is wound on the drum, with both ends of the cable extending from the two sides of the drum and connected to the two ends of the inner screen plate.

7. An adjustable peanut shelling device as described in claim 6, characterized in that: The inner screen plate has connecting arms extending towards the drum on both sides at its top ends, and the ends of the steel cables are fixedly connected to the ends of the connecting arms.

8. An adjustable peanut shelling device as described in claim 7, characterized in that: A locking cylinder extending toward the end face of the drum is also provided on the side plate.

9. An adjustable peanut shelling device as described in claim 8, characterized in that: The plate-beating assembly and the screen plate assembly are located on the top of the frame, the drive motor is fixedly mounted on the frame, the air duct is mounted on the frame, and the hopper is located below the screen plate assembly.

10. An adjustable peanut shelling device as described in claim 9, characterized in that: The drive motor drives the plate-beating assembly and the air duct to rotate via belt transmission.

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