A rolling type peanut screening device

Abstract

The utility model provides a kind of rolling type peanut screening device, it is related to drum screening equipment technical field, the utility model includes the assembly frame as overall support framework, the inside of assembly frame is connected with filter screen cylinder along transverse rotation, the upper portion of assembly frame is installed with feed inlet above the high end position of filter screen cylinder, the upper end of feed inlet is integrally connected with uniform feeding component, the discharge end of this uniform feeding component is opposite and connects with the feeding end of feed inlet, after peanut is poured into uniform feeding component, it can be realized uniform distribution by component internal movement, and then the speed of peanut entering feed inlet is controlled.Worm gear is reversely arranged at both ends, can drive two worm gears and control material impeller synchronous reverse rotation, cooperate with the guide vane in feed hopper, can uniformly guide peanut to control material impeller and uniform speed is transported to feed inlet, avoid that peanut concentratedly gushes into feed inlet and causes filter screen cylinder blockage.

Description

Technical Field

[0001] This utility model relates to the technical field of drum screening equipment, and in particular to a rolling peanut screening device. Background Technology

[0002] In peanut processing, drum screening devices are widely used pretreatment equipment for removing impurities and separating peanuts of different sizes to meet the needs of subsequent processing (such as shelling, oil extraction, and food processing). Through the rotation of the filter drum, peanuts move within the drum, and the filter holes facilitate size grading and impurity separation, a crucial step in ensuring peanut processing quality and the efficiency of subsequent processes.

[0003] In actual operation, it is difficult to maintain a stable feeding rate when adding peanuts to the feed hopper manually, which can easily lead to a large number of peanuts rushing into the feed inlet in a short period of time. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rolling peanut screening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rolling peanut screening device, comprising an assembly frame as an integral supporting skeleton, wherein a filter cylinder is rotatably connected to the interior of the assembly frame, the filter cylinder is arranged in an inclined state, with its high end close to the subsequent feeding structure and its low end facing the outside of the device, and the size of the filter holes on the surface of the filter cylinder gradually increases from the high end to the low end along its inclined direction, a driving part for driving the filter cylinder to rotate is provided on the outer wall of the assembly frame, and the bottom end of the filter cylinder is sealed by a metal filter screen. A debris removal door is hinged to one side of the filter screen. Opening the debris removal door can clean large particles of debris left inside the filter screen cylinder. A feed inlet is installed on the upper part of the assembly frame, corresponding to the upper end of the filter screen cylinder. The feed inlet is a guide plate structure that extends downward at an incline. Its lower end passes through the side wall of the assembly frame and extends into the filter screen cylinder. A uniform feeding component is integrally connected to the upper end of the feed inlet. The discharge end of the uniform feeding component is directly connected to the feed end of the feed inlet. After the peanuts are poured into the uniform feeding component, the uniform feeding speed can be achieved through the internal movement of the component, thereby controlling the speed at which the peanuts enter the feed inlet.

[0006] Preferably, the uniform feeding component includes a feeding hopper fixed at the upper end of the feeding inlet. A worm gear is rotatably installed between the two side walls of the feeding hopper along the width direction. Inside the feeding hopper, two control impellers are spaced apart at positions above the discharge outlet. The rotation shafts of the two control impellers are arranged along the front-rear direction of the feeding hopper, and the two ends of the rotation shafts are rotatably connected to the front and rear inner walls of the feeding hopper, respectively. One end of the rotation shaft of each control impeller extends to the outside of the feeding hopper and is fixedly connected to a worm wheel. Both worm wheels mesh with the worm. When the worm rotates around its own axis, it synchronously drives the two worm wheels to drive the control impellers to rotate.

[0007] Preferably, a block-shaped mounting base is vertically fixed to one side of the outer wall of the feed hopper. One end of the worm rotates horizontally through the mounting base and extends into the feed hopper to mesh with the worm wheel. The worm teeth at both ends of the worm rotate in opposite directions to ensure that the two worm wheels rotate synchronously in opposite directions under the drive of the worm.

[0008] Preferably, a feeding motor is bolted to the outer wall of the mounting base corresponding to the feeding hopper. The output shaft of the feeding motor is coaxially fixedly connected to one end of the worm gear. After the feeding motor is started, it can drive the worm gear to rotate around its own axis. Two guide plates are symmetrically fixed to the upper part of the inner wall of the feeding hopper. Both guide plates are arranged in an inclined manner. Their upper ends are connected to the upper part of the inner wall of the feeding hopper, and their lower ends extend upwards towards the two control impellers to guide the peanuts to converge at the control impellers.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] In this invention, the feeding stability is strong, which can prevent equipment jamming. The uniform feeding component includes a feeding hopper, a worm, a worm wheel, and a control impeller. When the feeding motor drives the worm to rotate, the worm teeth at both ends of the worm are set in opposite directions, which can drive the two worm wheels and the control impeller to rotate synchronously in opposite directions. With the help of the guide plate in the feeding hopper, the peanuts can be evenly guided to the control impeller and conveyed to the feeding port at a uniform speed, avoiding the peanuts from rushing into the feeding port and causing the filter screen to be blocked. This ensures the continuous and stable operation of the equipment and reduces the downtime for cleaning due to blockage. Attached Figure Description

[0011] Figure 1 This utility model provides a three-dimensional structural diagram of a rolling peanut screening device;

[0012] Figure 2 This utility model provides a partial structural schematic diagram of a rolling peanut screening device;

[0013] Figure 3 This utility model proposes a rolling peanut screening device. Figure 2 An internal diagram.

[0014] Legend: 1. Assembly frame; 2. Filter screen cylinder; 3. Pulley; 4. Belt; 5. Feed inlet; 6. Feed hopper; 7. Assembly frame; 8. Worm gear; 9. Feed motor; 10. Control impeller; 11. Worm gear; 12. Guide plate; 13. Bearing; 14. Motor protective cover; 15. Screening motor. Detailed Implementation

[0015] Example 1, as Figure 1-3As shown, a rolling peanut screening device includes an assembly frame 1 as an overall supporting skeleton. The assembly frame 1 can be made of welded steel and has support feet at the bottom. The support feet can be fixed to the ground by expansion bolts to ensure the stability of the device during operation. A filter cylinder 2 is rotatably connected to the inside of the assembly frame 1. The filter cylinder 2 is made of stainless steel to avoid rusting and affecting the quality of peanuts. A bushing is welded to the center of the end plate at both ends of the filter cylinder 2. The bushing cooperates with the bearing 13 seat set at the corresponding position on the inner side of the assembly frame 1 to realize the stable rotation of the filter cylinder 2 in the assembly frame 1. Before assembly, grease needs to be applied to the bearing 13 seat to reduce friction loss between the bushing and the bearing 13. The filter cylinder 2 is arranged at an angle, with its high end close to the subsequent feeding structure and its low end facing the outside of the device. The size of the filter holes on the surface of the filter cylinder 2 gradually increases from the high end to the low end along its tilt direction. The edges of the filter holes are polished to prevent scratching the peanut shells. A material dispersion plate is welded inside the filter cylinder 2 near the high-end feed inlet 5. The dispersion plate is arc-shaped and fits against the inner wall of the filter cylinder 2. Its length is set along the axis of the filter cylinder 2. When peanuts fall into the filter cylinder 2 through the feed inlet 5, they will first come into contact with the dispersion plate. The dispersion plate disperses the concentrated peanuts to the surrounding area of ​​the inner wall of the filter cylinder 2, preventing peanuts from accumulating locally inside the filter cylinder 2. If local accumulation is still observed inside the filter cylinder 2, the impurity removal door can be opened after the device stops running, and the angle of the dispersion plate can be adjusted with tools. The outer wall of the assembly frame 1 is equipped with a drive unit for driving the filter cylinder 2 to rotate. The assembly frame 1 is also welded with a protective railing on the outer side corresponding to the filter cylinder 2. The protective railing is made of bent round steel, and the distance between adjacent round steel bars is less than the width of the operator's finger to prevent accidental hand contact with the rotating filter cylinder 2 during operation and injury. An emergency stop button is also bolted to the side of the assembly frame 1 near the operator's standing position. The emergency stop button is connected in series with the control circuit of the feeding motor 9 and the screening motor 15. In case of emergency such as peanut blockage or motor abnormality, the operator can immediately press the emergency stop button to cut off the power supply to all motors. After the fault is cleared, the emergency stop button must be rotated clockwise to reset before the motor can be restarted. The lower end of the filter cylinder 2 is sealed with a metal filter screen, which is also made of stainless steel and is connected to the end plate at the lower end of the filter cylinder 2 by bolts, making it easy to disassemble, clean or replace. When disassembling, the fixing bolts must be unscrewed first and then the metal filter screen can be removed. One side of the metal filter screen is hinged to a dirt removal door. The edge of the dirt removal door is equipped with a rubber sealing strip to ensure the sealing effect. The side of the dirt removal door away from the hinge is also equipped with a buckle. The dirt removal door can be locked by engaging with the buckle on the end plate of the filter cylinder 2 to prevent the dirt removal door from being opened accidentally during the screening process. Before each screening, the buckle must be checked to ensure that it is fastened.The upper part of the assembly frame 1 is equipped with a feed inlet 5 above the high end of the filter cylinder 2. The feed inlet 5 is a downwardly extending guide plate structure. The guide plate is made of wear-resistant steel plate to extend its service life. The lower end of the guide plate passes through the side wall of the assembly frame 1 and extends into the filter cylinder 2. The part of the guide plate extending into the filter cylinder 2 maintains a certain distance from the inner wall of the filter cylinder 2 to prevent the filter cylinder 2 from colliding with the guide plate when it rotates. During installation, the distance between the guide plate and the inner wall of the filter cylinder 2 needs to be measured to ensure that the distance meets the requirements. The upper end of the feed inlet 5 is integrally connected to a uniform feeding component by bolts. The discharge end of the uniform feeding component is directly connected to the feed end of the feed inlet 5. A rubber pad is provided at the connection to reduce the impact noise when the peanuts fall. The top of the feed hopper 6 is also hinged with a dust cover. The dust cover is made of transparent plastic material, which makes it easy for the operator to observe the remaining amount of peanuts in the feed hopper 6. During operation, first open the dust cover and pour the peanuts to be screened into the feed hopper 6. After pouring, close the dust cover to prevent dust from being stirred up or peanut fragments from splashing during the screening process. After the peanuts are poured into the uniform feeding component, the uniform feeding speed can be achieved through the internal movement of the component, thereby controlling the speed at which the peanuts enter the feed inlet 5.

[0016] like Figure 1-3 As shown, the uniform feeding component includes a feeding hopper 6 fixed at the upper end of the feeding port 5. The feeding hopper 6 is made of welded steel plate and is funnel-shaped with a wider top and narrower bottom to facilitate the concentrated falling of peanuts. A worm gear 8 is rotatably installed between the two side walls of the feeding hopper 6 along the width direction. The worm gear 8 is made of No. 45 steel and its surface has been heat-treated to improve wear resistance. The two ends of the worm gear 8 are respectively installed in the mounting holes of the side walls of the feeding hopper 6 at the corresponding positions through deep groove ball bearings 13 to ensure that the worm gear 8 can rotate flexibly. When installing the bearings 13, grease needs to be applied to the inner ring of the bearings 13. Inside the feed hopper 6, two control impellers 10 are spaced apart above the discharge port. Each control impeller 10 has 3-4 arc-shaped blades made of wear-resistant alloy. The rotating shafts of the two control impellers 10 are arranged along the front-to-back direction of the feed hopper 6, and the two ends of the rotating shaft are rotatably connected to the front and rear inner walls of the feed hopper 6 through bearings 13. A sealing ring is provided at the joint between the rotating shaft and the bearing 13 to prevent peanut fragments from entering and affecting the rotation. Before each use, the sealing ring should be checked for integrity and replaced promptly if damaged. One end of the rotating shaft of each material control impeller 10 extends to the outside of the feed hopper 6 and is fixed with a worm wheel 11 by a key connection. The key connection ensures that the worm wheel 11 rotates synchronously with the rotating shaft. Both worm wheels 11 mesh with the worm 8 and the meshing gap is controlled between 0.1-0.3mm to avoid jamming during meshing. During installation, the meshing gap between the worm wheel 11 and the worm 8 needs to be adjusted. When the worm 8 rotates around its own axis, it synchronously drives the two worm wheels 11 to drive the material control impeller 10 to rotate.

[0017] like Figure 1-3As shown, a block-shaped mounting base 7 is welded and fixed to one side of the outer wall of the feed hopper 6. The mounting base 7 and the feed hopper 6 are made of the same steel plate to ensure connection strength. One end of the worm 8 rotates horizontally through the mounting base 7, and a dust cover is fitted on the outer side of the part of the worm 8 that passes through the mounting base 7. The two ends of the dust cover are respectively sealed to the side wall of the mounting base 7 and the shoulder on the worm 8 to prevent external dust or peanut fragments from entering the mating area between the worm 8 and the mounting base 7. The dust cover needs to be removed periodically to clean the accumulated impurities inside. The worm teeth on both ends of the worm 8 are in opposite directions. This design allows the two worm wheels 11 to rotate synchronously in opposite directions under the drive of the worm 8, thereby driving the two material control impellers 10 to rotate in opposite directions. This ensures that the peanuts can be evenly distributed between the two material control impellers 10, avoiding one-sided accumulation that affects the feeding speed. If the feeding speed is found to be uneven, the meshing of the worm 8 and the worm wheel 11 can be checked to ensure that there is no jamming or wear.

[0018] like Figure 1-3 As shown, a feeding motor 9 is bolted to the surface of the feeding hopper 6 via a motor bracket. The motor bracket is made of angle iron and welded to the outer wall of the feeding hopper 6 for reinforcement. The output shaft of the feeding motor 9 is connected to one end of the worm gear 8 via a flexible coupling. The flexible coupling can compensate for the installation deviation between the output shaft of the feeding motor 9 and the worm gear 8, reducing vibration during transmission. When installing the coupling, it is necessary to ensure the coaxiality of the output shaft of the feeding motor 9 and the worm gear 8 to avoid excessive vibration during operation. Two guide plates 12 are symmetrically welded to the inner wall of the feeding hopper 6. The guide plates 12 are made of steel plates that fit against the inner wall of the feeding hopper 6. The guide plates 12 are located above the control impeller 10 and at a 30-45 degree angle to the inner wall of the feeding hopper 6. This angle setting can guide the peanuts to slide smoothly towards the control impeller 10, avoiding the accumulation of peanuts on the inner wall of the feeding hopper 6 and forming a blockage. If a blockage occurs, the emergency stop button should be pressed first to stop the device, and then the dust cover should be opened to clean the blocked peanuts.

[0019] like Figure 1-3 As shown, both ends of the worm 8 are fitted with deep groove ball bearings 13 via interference fit. The outer ring of the bearing 13 is installed in the mounting hole of the corresponding position of the mounting base 7 via interference fit. This double interference fit ensures that the bearing 13 can be stably fixed and provides reliable support for the rotation of the worm 8. A sealing ring is also provided on the outside of the bearing 13. The sealing ring is fixed in the mounting hole of the mounting base 7 by a snap ring, which can effectively prevent external impurities from entering the interior of the bearing 13 and avoid the bearing 13 from wearing out and affecting its service life. The operating status of the bearing 13 needs to be checked regularly. If there is any abnormal noise, it needs to be replaced in time.

[0020] like Figure 1-3As shown, a motor protective cover 14 is fixed to one side of the outer wall of the mounting base 7 by bolt welding. The motor protective cover 14 is made of sheet metal or engineering plastic, has a box-shaped structure, and covers the outside of the feeding motor 9. Multiple ventilation holes are opened on the side wall of the protective cover. The ventilation holes are long and evenly distributed around the circumference of the protective cover. This can protect the feeding motor 9 from dust and impact while ensuring the heat dissipation effect of the feeding motor 9 during operation. An openable maintenance door is also provided on the side of the protective cover away from the mounting base 7. The maintenance door is fixed by buckles, which facilitates the subsequent maintenance of the feeding motor 9. During maintenance, the power must be disconnected before opening the maintenance door.

[0021] like Figure 1-3 As shown, the drive unit includes a screening motor 15 fixed to the outer wall of the assembly frame 1 by bolts to the motor base. The motor base is made of welded steel plate and reinforced by welding to the outer wall of the assembly frame 1 to ensure the stability of the screening motor 15 during operation. An elongated hole is provided on the motor base corresponding to the installation position of the screening motor 15. The elongated hole is set along the transmission direction of the pulley 3. By adjusting the fixed position of the screening motor 15 in the elongated hole, the center distance between the two pulleys 3 can be changed, thereby adjusting the tension of the V-belt. Before use, the tension of the V-belt should be checked. If it is too loose, the position of the screening motor 15 should be adjusted. A rotating central shaft is inserted inside the filter cylinder 2 along the axial direction. The rotating central shaft is made of solid round steel. Its two ends are respectively connected to the end plates of the filter cylinder 2 by flange bolts. The flange connection can ensure that the rotating central shaft and the filter cylinder 2 rotate synchronously and facilitate subsequent disassembly and separation. When disassembling, the bolts on the flange must be unscrewed first. The output shaft end of the screening motor 15 and one end of the rotating central shaft are respectively connected to a pulley 3 by a key. The pulley 3 is made of cast iron or aluminum alloy. The two pulleys 3 are arranged along the same horizontal plane to ensure the smoothness of the belt 4 transmission. A V-belt is fitted between the outer circles of the two pulleys 3. The V-belt is made of rubber and has anti-slip texture on the surface to improve transmission efficiency. If the V-belt cracks or wears, it should be replaced in time. Below the assembly frame 1, corresponding to the different filter hole sections of the filter cylinder 2, three graded collection tanks are welded. The collection tanks are inclined and maintain a certain distance from the outer wall of the filter cylinder 2. The lower end of the collection tank is provided with a discharge port. A material collection container can be placed below each discharge port. Before operation, the three material collection containers of different sizes should be placed below the discharge ports of the three collection tanks respectively to ensure that the opening of the collection container is aligned with the lower end of the guide plate 12. When the peanuts in the collection container reach a certain amount, the roller at the bottom of the collection tank can be pushed to move the collection tank out, remove the container, empty it, and then push it back to its original position to continue collecting.

[0022] Working Principle: First, fix the device in the designated working position using the support feet at the bottom of the assembly frame 1. Tighten the expansion bolts of the support feet to ensure the device is stable and without displacement. Then, check the condition of each component, including whether the guardrail is intact, whether the emergency stop button has reset, whether the V-belt tension is appropriate, and whether the sealing ring and dust cover are intact. At the same time, clean the residual impurities inside the feed hopper 6 and the filter cylinder 2. After the inspection is completed, open the dust cover on the top of the feed hopper 6 and slowly pour the peanuts to be screened into the feed hopper 6. The amount poured should not exceed two-thirds of the volume of the feed hopper 6 to avoid peanut overflow. Then close the dust cover to prevent dust from being stirred up. Next, the screening motor 15 and the feeding motor 9 are started respectively. After the screening motor 15 starts, its output shaft drives the corresponding pulley 3 to rotate, which drives the rotating central shaft to rotate synchronously through the transmission action of the V-belt. The rotating central shaft then drives the filter cylinder 2 to rotate stably around its own axis within the assembly frame 1. After the feeding motor 9 starts, its output shaft drives the worm 8 to rotate around its own axis through the flexible coupling. Because the worm teeth at both ends of the worm 8 are opposite and mesh with the two worm wheels 11, the rotation of the worm 8 drives the two worm wheels 11 to rotate synchronously in opposite directions, which in turn drives the two material control impellers 10 to rotate in opposite directions within the feeding hopper 6. Under the guidance of the guide plate 12, the peanuts in the feeding hopper 6 flow evenly between the two material control impellers 10. The material control impellers 10 rotating in opposite directions transport the peanuts evenly and at a constant speed to the feed inlet 5. The peanuts fall into the filter cylinder 2 through the inclined guide plate of the feed inlet 5, and are dispersed to the inner wall after contacting the dispersion plate inside the filter cylinder 2, avoiding local accumulation. As the filter cylinder 2 continues to rotate, peanuts move from the high end to the low end along an inclined direction. During this movement, peanuts smaller than the high-end filter holes of the filter cylinder 2 leak out first from their corresponding holes and fall into the first grading collection trough below. They then enter the corresponding collection container through the outlet of the collection trough. Peanuts between the high-end and low-end filter holes continue to move until they leak out at the matching filter hole size position and fall into the second grading collection trough and its corresponding container. Large particles larger than the bottom filter holes of the filter cylinder 2 move with the rotation to the low-end metal filter screen and remain there. During the screening process, the operator can observe the remaining amount of peanuts in the feed hopper 6 through the transparent dust cover and replenish peanuts in time. At the same time, the operator can observe the amount of peanuts in the collection container. Once the container is full, the collection trough is pushed out and the container is emptied. In case of emergency such as peanut blockage or abnormal motor noise, the emergency stop button is pressed immediately to cut off the power. After the fault is cleared and the emergency stop button is reset, the motor is restarted to continue screening.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A rolling peanut screening device, comprising an assembly frame (1) as an integral support skeleton, characterized in that: The assembly frame (1) is rotatably connected to a filter cylinder (2). The filter cylinder (2) is arranged in an inclined state, and the size of the filter holes on the surface of the filter cylinder (2) gradually increases from the high end to the low end along its inclined direction. The outer wall of the assembly frame (1) is provided with a drive unit for driving the filter cylinder (2) to rotate. The bottom end of the filter cylinder (2) is sealed by a metal filter. A cleaning door is hinged to one side of the metal filter. Opening the cleaning door can clean the large particles of debris left inside the filter cylinder (2). The upper part of the assembly frame (1) is equipped with a feed port (5) above the high end of the filter cylinder (2). The feed port (5) is a guide plate structure that extends downward at an inclination. The lower end of the feed port (5) extends into the interior of the filter cylinder (2). The upper end of the feed port (5) is integrally connected to a uniform feeding component. After the peanuts are poured into the uniform feeding component, the uniform feeding can be achieved through the internal movement of the component, thereby controlling the speed at which the peanuts enter the feed port (5).

2. The rolling peanut screening device according to claim 1, characterized in that: The uniform feeding component includes a feeding hopper (6) fixed at the upper end of the feeding port (5). A worm gear (8) is rotatably installed between the two side walls of the feeding hopper (6). Two control impellers (10) are spaced apart inside the feeding hopper (6) corresponding to the position above its discharge port. The two ends of the rotating shafts of the two control impellers (10) are rotatably connected to the front and rear inner walls of the feeding hopper (6). One end of the rotating shaft of each control impeller (10) extends to the outside of the feeding hopper (6) and is fixedly connected to a worm wheel (11). When the worm gear (8) rotates around its own axis, it synchronously drives the two worm wheels (11) to drive the control impellers (10) to rotate.

3. The rolling peanut screening device according to claim 2, characterized in that: A block-shaped mounting base (7) is vertically fixed to one side of the outer wall of the feed hopper (6). One end of the worm (8) rotates through the mounting base (7) in the horizontal direction. The worm teeth at both ends of the worm (8) rotate in opposite directions to ensure that the two worm wheels (11) rotate synchronously in opposite directions under the drive of the worm (8).

4. The rolling peanut screening device according to claim 3, characterized in that: The feeding hopper (6) is bolted to the outer wall of the mounting base (7). The output shaft of the feeding motor (9) is coaxially fixed to one end of the worm (8). After the feeding motor (9) is started, it can drive the worm (8) to rotate around its own axis. Two guide plates (12) are symmetrically fixed to the upper part of the inner wall of the feeding hopper (6). The two guide plates (12) are arranged in an inclined manner. Their upper ends are connected to the upper part of the inner wall of the feeding hopper (6), and their lower ends extend upwards towards the two control impellers (10) to guide the peanuts to converge at the control impellers (10).

5. The rolling peanut screening device according to claim 4, characterized in that: Both ends of the worm (8) are fitted with bearings (13) with interference fit. The outer rings of the two bearings (13) are respectively interference-fitted to the inner side wall of the mounting base (7) and the side wall of the feed hopper (6).

6. The rolling peanut screening device according to claim 5, characterized in that: A motor protective cover (14) is welded and fixed to the outer wall of the mounting base (7). The motor protective cover (14) has a box-shaped structure and is placed on the outside of the feeding motor (9).

7. The rolling peanut screening device according to claim 1, characterized in that: The drive unit includes a screening motor (15) fixed to the outer wall of the assembly frame (1) via a motor base. A rotating central shaft is provided inside the filter cylinder (2) along the axial direction. A pulley (3) is fixed to the output shaft end of the screening motor (15) and one end of the rotating central shaft, respectively. The two pulleys (3) are arranged along the same horizontal plane, and a belt (4) is sleeved between the outer circles of the two pulleys (3). After the screening motor (15) is started, its output shaft drives the corresponding pulley (3) to rotate. The rotating central shaft is driven to rotate synchronously through the belt (4), thereby driving the filter cylinder (2) to rotate around its own axis.

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