High-frequency vibration classification screening equipment for grain production

Abstract

The invention relates to the technical field of grain production devices, and discloses high-frequency vibration grading screening equipment for grain production. A support is installed at the bottom of a roller, universal wheels with brake devices and a leveling device are matched, and a transmission system converts motor power into roller low-rotating-speed high-torque output by utilizing the characteristic that a driving gear and a gear ring are large in transmission ratio; in the control assembly, grains enter a processing area between a rotating disc and a fixed disc through a funnel and a feeding pipe, a second motor and a first motor rotate reversely to drive the rotating disc and the fixed disc to move relatively, and a trigger ball and a ball groove are matched with a reset spring to generate high-frequency vibration contact and separation actions; and the screening system adopts a mode of combining dynamic screening and inclined flow guide, screening holes of the roller are uniformly distributed, sufficient screening of the materials is ensured, the handling capacity is improved, and the functions of transversely moving the screening tray, extruding and grinding, high-frequency vibration and the like are integrated.

Description

Technical Field

[0001] The present invention relates to the technical field of grain production devices, in particular to a high-frequency vibration grading and screening device for grain production. Background Art

[0002] In the entire grain production and processing system, screening and grading not only directly impacts the quality and efficiency of primary grain processing but also serves as a key component in determining the quality of subsequent processed products. With the steady improvement of living standards and shifting consumer attitudes, consumer demand for refined grain processing is experiencing explosive growth. When dealing with common high-humidity and easily agglomerated grain crops such as corn, soybeans, and wheat, most traditional grain screening equipment lacks a targeted pretreatment mechanism and is unable to effectively break up agglomerated materials during the screening process, resulting in frequent problems of material clogging the screen and low screening efficiency.

[0003] The drum screen equipment currently widely used in the market has occupied a certain market share due to its advantages such as compact structure, small footprint and large processing capacity, but its screening principle still has significant defects. The drum screen relies on a static screening mode with a fixed screen. The material inside the drum only contacts the screen through the falling motion generated by the rotation of the drum. This single screening method is difficult to form an effective impact force and separation force when dealing with sticky and agglomerated materials. Due to the lack of an efficient breakup mechanism, agglomerated materials can easily accumulate in the drum and entangle the screen, which not only greatly reduces the screening efficiency, but also causes increased wear of the screen due to long-term mechanical friction, shortening the service life of the equipment and increasing maintenance costs, which seriously restricts the continuity and stability of grain processing and production. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that: the existing technology has the disadvantage that the drum screen is not easy to break up the agglomerated materials. For this reason, we propose a high-frequency vibration grading and screening equipment for grain production.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a high-frequency vibration grading and screening equipment for grain production, comprising a drum, a funnel is fixedly connected to the opening at one end of the drum, a first motor is provided at the end of the drum away from the funnel, a driving gear is fixedly connected to the output end of the first motor, a gear ring is provided on the side of the driving gear close to the drum, the gear ring is sleeved on the surface of the drum, the gear ring is fixedly connected to the drum, the driving gear is meshed with the gear ring, the diameter ratio of the driving gear to the gear ring is one to eight, the drum is equipped with a built-in control component, the control component includes a fixed disk, the fixed disk is placed in the drum, and the fixed disk is provided on the side away from the funnel A rotating disk is provided, and the rotating disk, fixed disk and roller axes coincide with each other, and a plurality of evenly distributed ball grooves are provided on the side of the fixed disk close to the rotating disk, and a plurality of trigger balls matching the ball grooves are provided on the side of the rotating disk close to the fixed disk, and the trigger balls are slidably connected to the inner walls of the ball grooves, and a plurality of connecting holes are provided on the surface of the rotating disk, and an assembly cylinder is fixedly connected to the side of the rotating disk away from the fixed disk, and a connecting cylinder is sleeved on the surface of the assembly cylinder, and the assembly cylinder is slidably connected to the inner wall of the connecting cylinder, and a reset spring is provided between the assembly cylinder and the connecting cylinder, and a connecting roller is fixedly connected to the side of the connecting cylinder away from the assembly cylinder, and a second motor is provided on the end of the connecting roller away from the connecting cylinder.

[0006] Preferably, a plurality of sieve holes are provided around one end of the drum close to the funnel, and the plurality of sieve holes are evenly distributed on the surface of the drum. A bracket is installed at the bottom of the drum, and universal wheels are fixedly connected around the bottom of the bracket. A support frame is fixedly connected to the bottom of the first motor, and the bottom of the support frame is fixedly connected to the bracket.

[0007] Preferably, the plurality of communicating holes are evenly distributed on the surface of the rotating disk, one end of the reset spring contacts the bottom of the inner cavity of the assembly cylinder, and the other end of the reset spring contacts the bottom of the inner cavity of the connecting cylinder.

[0008] Preferably, a fixing seat is sleeved and fixed on the surface of the second motor, and one end of the fixing seat away from the second motor is fixedly connected to the inner wall of the assembly cylinder.

[0009] Preferably, the fixed disk is fixedly connected with fixed plates around its periphery, and a plurality of the fixed plates are evenly distributed around the axis of the fixed disk, and a side of the fixed plate away from the fixed disk is fixedly connected to the inner wall of the drum.

[0010] Preferably, a communication window is provided on the surface of the fixed disk, the inner wall of the communication window is fixedly connected to a feed pipe, and one end of the feed pipe away from the fixed disk is fixedly connected to the bottom of the funnel.

[0011] Preferably, the surfaces of the rotating disk and the fixed disk adjacent to each other are both provided with a plurality of evenly distributed grinding grooves.

[0012] Preferably, a fixing ring is sleeved on the surface of the rotating disk, the outer ring wall of the fixing ring is fixedly connected to the inner wall of the drum, and a plurality of evenly distributed balls are installed around the rotating disk, and the side of the balls away from the rotating disk contacts the inner wall of the fixing ring.

[0013] Preferably, the output end of the second motor is fixedly connected to a driving roller, and an embedding groove matching the driving roller is provided at one end of the connecting roller close to the driving roller. The inner wall of the drum is fixedly connected to an inclined cylinder, and the inclined cylinder is arranged on the side of the rotating disk away from the fixed disk.

[0014] Preferably, a plurality of guide windows are provided around the connecting tube, and the plurality of guide windows are evenly distributed around the axis of the connecting tube. A plurality of guide seats are fixedly connected around the assembling tube, and the guide seats are slidably connected to the inner walls of the guide windows.

[0015] Technical effects and advantages of the present invention: The high-frequency vibration grading and screening equipment for grain production of the present invention has a sturdy and stable bracket at the bottom of the equipment, and is equipped with a universal wheel with a braking device and a leveling device, which not only ensures operational stability, but also facilitates flexible movement in different sites and meets the switching needs of multiple production lines. The transmission system utilizes the large transmission ratio characteristics of the driving gear and the gear ring to convert the motor power into a low-speed and high-torque output of the drum, ensuring that the drum has a stable speed when processing high-load materials, avoiding clogging of the screen holes, and reducing energy consumption.

[0016] Within its internal control components, grain enters the processing area between the rotating and fixed discs via a hopper and feed tube. A second motor rotates in the opposite direction of the first, driving relative motion between the rotating and fixed discs. The trigger ball and ball groove, in conjunction with a return spring, generate a high-frequency vibration contact and separation action. This, combined with the specially designed grinding troughs, effectively breaks up agglomerated materials while preventing over-crushing. The screening system combines dynamic screening with inclined diversion, ensuring evenly distributed drum screens ensure sufficient screening. The inclined drum guides the material along a defined trajectory, minimizing retention and increasing throughput.

[0017] The equipment, controlled by dual motors, can adjust its operating mode based on the characteristics of the grain variety. It integrates functions such as a horizontally movable sieve plate, extrusion grinding, and high-frequency vibration, improving the contact efficiency between the material and the screen surface. This enables efficient, integrated grain screening, grinding, and grading, effectively addressing the shortcomings of traditional screening equipment and improving the quality and efficiency of grain production and processing. It has significant practical value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components: Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is a schematic diagram of the overall explosion structure of the present invention; Figure 4 This is a schematic diagram of the control component structure of the present invention; Figure 5 Schematic diagram of the internal structure of the control component of the present invention; Figure 6 This is a schematic diagram of the explosion structure of the control component of the present invention; Figure 7 This is a schematic structural diagram of the control component explosion from the second perspective of the present invention.

[0019] Legend: 1. Roller; 101. Sieve hole; 102. Bracket; 103. Universal wheel; 104. Funnel; 2. First motor; 201. Support frame; 202. Driving gear; 203. Gear ring; 3. Control assembly; 301. Fixed disk; 302. Fixed plate; 303. Connecting window; 304. Feeding pipe; 305. Ball groove; 306. Rotating disk; 307. Trigger ball; 308. Ball; 309. Fixed ring; 310. Connecting hole; 311. Assembly cylinder; 312. Connecting cylinder; 313. Guide window; 314. Guide seat; 315. Reset spring; 316. Connecting roller; 317. Second motor; 318. Fixed seat; 319. Driving roller; 320. Embedded groove; 321. Tilting cylinder. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0021] Reference Figures 1 to 7As shown, the present invention provides a technical solution for high-frequency vibration grading and screening equipment for grain production: a high-frequency vibration grading and screening equipment for grain production, comprising a drum 1, a funnel 104 fixedly connected to the opening at one end of the drum 1, a plurality of sieve holes 101 arranged around the end of the drum 1 close to the funnel 104, and the plurality of sieve holes 101 are evenly distributed on the surface of the drum 1, a bracket 102 is installed at the bottom of the drum 1, and universal wheels 103 are fixedly connected around the bottom of the bracket 102. The bracket 102 at the bottom of the drum 1 has a stable structure, and the universal wheels 103 installed around the bottom are provided with braking devices, which not only ensure the stability of the equipment during operation, but also facilitate flexible movement when needed. The universal wheels 103 at the bottom of the equipment cooperate with the leveling device at the bottom of the bracket 102 to quickly complete the equipment positioning in different ground environments, which is particularly suitable for multi-production line switching and temporary screening scenarios. Compared with traditional fixed equipment, site conversion is more convenient and efficient, which significantly improves the flexibility and practicality of the equipment.

[0022] A first motor 2 is provided at one end of the drum 1 away from the funnel 104, a support frame 201 is fixedly connected to the bottom of the first motor 2, the bottom of the support frame 201 is fixedly connected to the bracket 102, a driving gear 202 is fixedly connected to the output end of the first motor 2, a gear ring 203 is provided on the side of the driving gear 202 close to the drum 1, the gear ring 203 is sleeved on the surface of the drum 1, the gear ring 203 is fixedly connected to the drum 1, the driving gear 202 is meshed with the gear ring 203, the diameter ratio of the driving gear 202 to the gear ring 203 is one to eight, the first motor 2 is started, and its output The output shaft drives the driving gear 202 to rotate, and the driving gear 202 meshes with the gear ring 203 sleeved on the surface of the drum 1. Utilizing a large transmission ratio, the motor's rotational power is converted into a low-speed, high-torque output for the drum 1, allowing the drum 1 to continuously rotate at a stable speed. The transmission system uses a large-ratio gear pair design, effectively amplifying the motor's output torque, allowing the drum 1 to maintain a stable speed and power output when processing high-load materials, reducing speed fluctuations caused by load changes, and fundamentally avoiding the problems of clogging of the screen hole 101 and reduced screening efficiency. This design not only enhances the stability of equipment operation, but also reduces the power demand of the motor, with significant energy-saving advantages.

[0023] The drum 1 houses a control assembly 3, which includes a fixed disk 301 positioned within the drum 1. Fixed plates 302 are fixedly connected to the drum 1 around the fixed disk 301. Multiple fixed plates 302 are evenly distributed around the fixed disk 301's axis. The side of the fixed plates 302 facing away from the fixed disk 301 is fixedly connected to the inner wall of the drum 1. A communication window 303 is defined through the fixed disk 301. A feed pipe 304 is fixedly connected to the inner wall of the communication window 303. The end of the feed pipe 304, facing away from the fixed disk 301, is fixedly connected to the bottom of the hopper 104. After the grain to be screened is poured into the equipment from the top of the hopper 104, it slides down the inner wall of the hopper 104 by gravity and passes through the feed pipe 304, which is fixedly connected to the bottom of the hopper 104, forming a stable material conveying channel. The end of the feed pipe 304 is tightly connected to the communication window 303 in the center of the fixed disk 301, ensuring that the material enters the processing area between the rotating disk 306 and the fixed disk 301 without leakage.

[0024] The fixed disk 301 is provided with a rotating disk 306 on the side away from the funnel 104. The axes of the rotating disk 306, the fixed disk 301 and the drum 1 coincide. The fixed disk 301 is provided with a plurality of evenly distributed ball grooves 305 on the side close to the rotating disk 306. The rotating disk 306 is provided with a plurality of trigger balls 307 matching the ball grooves 305 on the side close to the fixed disk 301. The trigger balls 307 are slidably connected to the inner wall of the ball groove 305. The rotating disk 306 and the fixed disk 301 are close to each other. The surface of the rotating disk 306 is provided with a plurality of evenly distributed grinding grooves. A fixed ring 309 is sleeved on the surface of the rotating disk 306. The outer ring wall of the fixed ring 309 is fixedly connected to the inner wall of the drum 1. A plurality of evenly distributed balls 308 are installed around the rotating disk 306. The side of the balls 308 away from the rotating disk 306 contacts the inner wall of the fixed ring 309. The surface of the rotating disk 306 is provided with a plurality of connecting holes 310. The plurality of connecting holes 310 are evenly distributed on the surface of the rotating disk 306. The rotating disk 306 The side away from the fixed disk 301 is fixedly connected to an assembly cylinder 311, and a connecting cylinder 312 is sleeved on the surface of the assembly cylinder 311. The assembly cylinder 311 is slidably connected to the inner wall of the connecting cylinder 312. A plurality of guide windows 313 are provided around the connecting cylinder 312, and the plurality of guide windows 313 are evenly distributed around the axis of the connecting cylinder 312. A plurality of guide seats 314 are fixedly connected around the assembly cylinder 311, and the guide seats 314 are slidably connected to the inner walls of the guide windows 313. A return spring 315 is provided between the assembly cylinder 311 and the connecting cylinder 312, and one end of the return spring 315 contacts the bottom of the inner cavity of the assembly cylinder 311, and the other end of the return spring 315 contacts the bottom of the inner cavity of the connecting cylinder 312. The side of the connecting cylinder 312 away from the assembly cylinder 311 is fixedly connected to a connecting roller 316, and the end of the connecting roller 316 away from the connecting cylinder 312 is provided with a second motor 317. When the drum 1 rotates at a constant speed, the second motor 317 is started synchronously and the rotation direction is opposite to that of the first motor 2. The output end of the second motor 317 cooperates with the drive roller 319 to drive the connecting tube 312 to perform reciprocating linear motion. The guide windows 313 distributed circumferentially on the connecting tube 312 form a sliding fit with the guide seat 314 of the assembly tube 311 to ensure the accuracy of the movement. The reset spring 315 set between the assembly tube 311 and the connecting tube 312 is compressed and stores elastic potential energy when the trigger ball 307 on the rotating disk 306 enters the ball groove 305 of the fixed disk 301, causing the rotating disk 306 to move closer to the fixed disk 301. The grinding grooves on the surfaces of the two disks engage with each other, producing a shearing and crushing effect on the agglomerated materials; when the trigger ball 307 leaves the ball groove 305, the spring releases the potential energy to push the rotating disk 306 back to its original position, forming a high-frequency vibration contact and separation action. This dynamic grinding effect, generated by the combination of mechanical structure and elastic elements, can effectively break up the agglomerated particles formed during grain storage.

[0025] A fixed base 318 is sleeved and fixed to the surface of the second motor 317. The end of the fixed base 318 away from the second motor 317 is fixedly connected to the inner wall of the assembly cylinder 311. The output end of the second motor 317 is fixedly connected to the drive roller 319. The end of the connecting roller 316 near the drive roller 319 has a matching insertion groove 320. The inner wall of the drum 1 is fixedly connected to the inclined cylinder 321, which is located on the side of the rotating disk 306 away from the fixed disk 301. After the initial dispersion of the material, the smaller particles, under the combined action of centrifugal force and gravity, pass through the connecting hole 310 on the surface of the rotating disk 306 and enter the rear area. The inclined guide structure on the inner wall of the drum 1 guides the material along the inclined surface. Under the centrifugal force generated by the rotation of the drum 1, particles that meet the size of the sieve holes 101 are discharged from the evenly distributed sieve holes 101 at the front end of the drum 1 and fall into the material receiving device below. The larger particles return to the grinding area along the inclined surface for further crushing and screening. The rotation of the drum 1 and the vibration of the rotating disk 306 cooperate with each other to form an efficient processing cycle of the material in the drum, thereby realizing graded screening in continuous production. The innovative design of the material handling mechanism addresses the inadequate handling capacity of traditional screening equipment for agglomerated materials. The unique layout of the grinding grooves in the rotating disc 306 and the fixed disc 301 creates a powerful shear force on the material when they rotate at opposite speeds, effectively breaking up agglomerated particles. The interaction of the trigger ball 307 with the ball groove 305, along with the action of the return spring 315, causes the rotating disc 306 to generate controlled high-frequency vibrations. This combined "grinding and vibration" effect significantly improves the efficiency of breaking up agglomerated materials while preventing over-crushing and ensuring high-quality material handling. The screening system adopts a design that combines dynamic screening with inclined diversion. The sieve holes 101 on the surface of the drum 1 are evenly distributed, ensuring that the material contacts the sieve holes 101 multiple times during the rotation of the drum 1, thereby improving screening efficiency. The inclined diversion structure enables the material to form a reasonable movement trajectory within the drum 1, reducing material retention and increasing processing capacity. The dual motors work together to achieve speed regulation through the control system, and can switch working modes according to the characteristics of different grain varieties. The drum 1 screen design with a horizontally movable sieve plate and extrusion grinding function can enhance the contact efficiency between the material and the screen surface through the dynamic movement of the sieve plate. At the same time, the grinding structure is used to break up lumps and remove impurities. Combined with high-frequency vibration, it increases the screening rate, thereby meeting the integrated and efficient processing requirements of screening, grinding, and grading in grain production.

[0026] Working principle: The equipment uses dual motors to drive the drum 1 and rotating disc 306. This integrated process combines gear transmission, grinding vibration, and an inclined diversion structure to achieve integrated grain screening, crushing, and grading. Once the first motor 2 is activated, it drives the driving gear 202. The high transmission ratio between the driving gear 202 and the gear ring 203 converts the high speed into a low-speed, high-torque output for the drum 1, ensuring stable rotation. The sieve holes 101 on the drum's surface allow small particles to be discharged under the influence of centrifugal force and gravity, while larger particles continue to be processed.

[0027] Grain to be screened is poured from hopper 104 into a feed pipe 304 and enters the processing area of ​​fixed disc 301 and rotating disc 306. Fixed disc 301 is secured to drum 1 by fixed plates 302 on all sides. Its surface is provided with ball grooves 305 and grinding grooves. Rotating disc 306 is equipped with a trigger ball 307 that engages the grinding grooves. The outer ring of the rotating disc is connected to a fixed ring 309 via a ball bearing 308. This is coupled to a second motor 317 via an assembly cylinder 311 and a connecting cylinder 312. Second motor 317 rotates in the opposite direction of first motor 2, driving connecting cylinder 312 in reciprocating linear motion. When trigger ball 307 enters ball groove 305, return spring 315 compresses, causing rotating disc 306 to approach fixed disc 301, engaging the grinding grooves and breaking up lumps. When trigger ball 307 leaves, the spring resets, resulting in a high-frequency vibration separation action.

[0028] Small particles, initially broken up, enter the rear area through the connecting hole 310 of the rotating disk 306. Those that meet the size of the sieve aperture 101 are discharged through the sieve aperture 101. Large particles are returned to the grinding area along the inclined cylinder 321 on the inner wall of the drum 1 for recycling. The speed of the dual motors can be adjusted by the control system to suit different grain types. The combination of the "grinding + vibration" function of the rotating disk 306 and the screening function of the drum 1 achieves integrated processing, improving efficiency and quality.

[0029] The equipment uses gear transmission, dual-motor reverse drive and spring vibration structure, combined with inclined diversion and dynamic screening, to form a continuous and efficient grain processing cycle, meeting the flexible screening and grading needs of multiple scenarios.

[0030] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A high-frequency vibration grading and screening equipment for grain production, characterized in that: The invention comprises a roller, wherein a funnel is fixedly connected to an opening at one end of the roller, a first motor is provided at an end of the roller away from the funnel, a driving gear is fixedly connected to an output end of the first motor, a gear ring is provided on a side of the driving gear close to the roller, the gear ring is sleeved on the surface of the roller, the gear ring is fixedly connected to the roller, the driving gear is meshed with the gear ring, the diameter ratio of the driving gear to the gear ring is 1 to 8, a control component is built into the roller, the control component comprises a fixed disk, the fixed disk is placed in the roller, a rotating disk is provided on the side of the fixed disk away from the funnel, the rotating disk, the fixed disk and the roller axis The cam is provided with a plurality of evenly distributed ball grooves on one side of the fixed disk close to the rotating disk, and a plurality of trigger balls matching the ball grooves are provided on the side of the rotating disk close to the fixed disk. The trigger balls are slidably connected to the inner walls of the ball grooves, and a plurality of connecting holes are provided on the surface of the rotating disk. An assembly cylinder is fixedly connected to the side of the rotating disk away from the fixed disk, a connecting cylinder is sleeved on the surface of the assembly cylinder, and the assembly cylinder is slidably connected to the inner wall of the connecting cylinder. A reset spring is provided between the assembly cylinder and the connecting cylinder, and a connecting roller is fixedly connected to the side of the connecting cylinder away from the assembly cylinder, and a second motor is provided on the end of the connecting roller away from the connecting cylinder.

2. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: A plurality of sieve holes are provided around one end of the drum close to the funnel, and the plurality of sieve holes are evenly distributed on the surface of the drum. A bracket is installed at the bottom of the drum, and universal wheels are fixedly connected around the bottom of the bracket. A support frame is fixedly connected to the bottom of the first motor, and the bottom of the support frame is fixedly connected to the bracket.

3. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: The plurality of communicating holes are evenly distributed on the surface of the rotating disk. One end of the reset spring contacts the bottom of the inner cavity of the assembly cylinder, and the other end of the reset spring contacts the bottom of the inner cavity of the connecting cylinder.

4. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: A fixing seat is sleeved and fixed on the surface of the second motor, and one end of the fixing seat away from the second motor is fixedly connected to the inner wall of the assembly cylinder.

5. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: The fixing plate is fixedly connected to the fixing plate around the fixing plate, and a plurality of the fixing plates are evenly distributed around the axis of the fixing plate. The side of the fixing plate away from the fixing plate is fixedly connected to the inner wall of the drum.

6. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: A communication window is provided on the surface of the fixed disk, which passes through the fixed disk. A feed pipe is fixedly connected to the inner wall of the communication window. One end of the feed pipe away from the fixed disk is fixedly connected to the bottom of the funnel.

7. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: The surfaces of the rotating disk and the fixed disk close to each other are both provided with a plurality of evenly distributed grinding grooves.

8. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: A fixed ring is sleeved on the surface of the rotating disk, and the outer ring wall of the fixed ring is fixedly connected to the inner wall of the drum. A plurality of evenly distributed balls are installed around the rotating disk, and the side of the balls away from the rotating disk contacts the inner wall of the fixed ring.

9. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: The output end of the second motor is fixedly connected to a driving roller, and an embedding groove matching the driving roller is provided at one end of the connecting roller close to the driving roller. The inner wall of the drum is fixedly connected to a tilting cylinder, which is arranged on the side of the rotating disk away from the fixed disk.

10. The high-frequency vibration grading and screening equipment for grain production according to claim 1, characterized in that: A plurality of guide windows are provided around the connecting tube, and the plurality of guide windows are evenly distributed around the axis of the connecting tube. A plurality of guide seats are fixedly connected around the assembling tube, and the guide seats are slidably connected to the inner walls of the guide windows.

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