Multi-stage rotary vibration screening device for grain processing
By designing a multi-stage rotary vibrating screening device, and utilizing the elastic collision of screen plate one and screen plate two and the rotating roller structure, the problem of fixed vibration frequency in traditional screening equipment is solved, achieving efficient screening and reducing clogging.
Patent Information
- Application Number
- CN202423145792.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional grain screening equipment has a fixed vibration frequency, resulting in poor screening effect, difficulty in fully screening grain within a fixed time, and easy clogging problems.
Design a multi-stage rotary vibrating screening device for grain processing. It adopts a combination structure of screen plate one and screen plate two. Through the cooperation of spring and movable column, screen plate two rotates around the movable column in both directions and produces elastic collision with screen plate one, thereby increasing the vibration frequency. At the same time, rotating roller and elastic column are used to avoid clogging.
It improves grain screening efficiency, reduces the probability of screen plate clogging, and achieves a more efficient grain screening effect.
Smart Images
Figure CN223800909U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to grain screening technical field especially relates to a grain processing multistage rotary vibration screening device. BACKGROUND
[0002] In the production and processing of grain products, before deep processing of grain raw materials, it is usually necessary to sieve the grain raw materials first to remove impurities (mainly shells, branches and leaves, etc.) carried by the grain raw materials to reduce the pollution of impurities to subsequent deep processing.
[0003] The traditional grain screening equipment usually realizes the screening of grain and impurities only by the vibration of the screening equipment, and the existing grain screening equipment usually makes the grain flow between multiple inclined screening plates, and the inclination angle of the screening plates is fixed, so the flow speed of the grain is fixed. Therefore, it is difficult to fully screen the grain within a fixed time only by vibration, which reduces the screening effect of the grain. SUMMARY
[0004] The utility model discloses a grain processing multistage rotary vibration screening device to solve the problem in prior art.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a grain processing multistage rotary vibration screening device, including the vibration screening box, the vibration screening box one side outer surface near the top fixed connection has the feed frame, and the vibration screening box inside embedded fixed connection has two groups of screening frame, the screening frame and vibration screening box are integral type structure, and the inside of screening frame is arc shape;
[0006] Two groups The outer surface of screening frame and vibration screening box near the bottom is fixedly connected with the discharge frame, the inside of vibration screening box and the corresponding position of the lowermost discharge frame are fixedly connected with the inclined guide plate;
[0007] The inside of two groups The screening frame is rotatably connected with the screen plate one, the outer surface of one group The screening frame is provided with the motor, and the output end of the motor penetrates to the inside of the screening frame and is fixedly connected with the screen plate one, the outer surface of two groups The screening frame is rotatably connected with the transmission wheel away from the motor, and the transmission wheel is rotatably connected with the screen plate one through the rotating shaft, and the transmission wheel is rotatably connected with the transmission belt between two groups The transmission wheel is rotatably connected with the transmission belt.
[0008] Further, the screen hole aperture of the upper screen plate one is greater than the screen hole aperture of the lower screen plate one, and the outer surface of the screen plate one is attached to the inner surface of the corresponding screening frame.
[0009] Further, the upper end outer surface of the sieve plate one is fixedly connected with support cylinder one near the middle part, and the inside of the support cylinder one is provided with spring one and movable column one, the top end of the movable column one is hingedly connected with sieve plate two, one end of the spring one is fixedly connected with the movable column one, the other end is fixedly connected with the support cylinder one, and the width of the sieve plate two is smaller than the width of the sieve plate one.
[0010] Further, the upper end outer surface of the sieve plate one is fixedly connected with support cylinder one near the middle part, and the inside of the support cylinder one is provided with spring one and movable column one, the top end of the movable column one is hingedly connected with sieve plate two, one end of the spring one is fixedly connected with the movable column one, the other end is fixedly connected with the support cylinder one, and the width of the sieve plate two is smaller than the width of the sieve plate one.
[0011] Further, the outer surface of the sieve plate one is provided with rotating rollers on both sides of the two groups of support cylinder two, the outer surfaces of the two groups of rotating rollers are fixedly connected with a plurality of groups of elastic columns at equal distances, and the diameter of the cross section of the elastic column is smaller than the hole diameter of the sieve holes of the sieve plate one and the sieve plate two.
[0012] As the above technical scheme is adopted, the beneficial effects of the present application are as follows:
[0013] In the present application, the sieve plate one, the sieve plate two, the spring one and the spring two are cooperated with each other, which can not only sieve the impurities in the grain by the two groups of sieve plates one and two arranged upward and downward, but also make the sieve plate two rotate reversely around the movable column one and press the movable column two, the sieve plate two repeatedly swings under the joint action of the spring two and its gravity, and elastically collides with the sieve plate one, thereby improving the vibration frequency of the sieve plate one and the sieve plate two, and adjusting the sieving time of the grain according to the feeding amount, and improving the sieving effect of the grain.
[0014] Meanwhile, the elastic column repeatedly inserts into the sieve hole of the sieve plate one in the process of rolling with the rotating roller, which avoids the influence of the blocking phenomenon of the sieve plate one on the falling of the grain, so that the device can not only improve the sieving efficiency, but also reduce the probability of being blocked of the sieve plate one and the sieve plate two. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is the overall structure schematic view of the present application;
[0016] Fig. 2 It is the combined view of the sieve frame and the vibrating sieve box of the present application;
[0017] Fig. 3 It is the combined view of the movable column and the sieve plate one of the present application;
[0018] Fig. 4This is a combined view of the rotating roller and the elastic column of this utility model;
[0019] Fig. 5 This is a combined view of the sieve plate one and sieve plate two of this utility model.
[0020] Reference numerals in the attached diagram: 1. Vibrating screen box; 2. Feed frame; 3. Screening frame; 4. Discharge frame; 5. Screen plate one; 6. Motor; 7. Drive wheel; 8. Conveyor belt; 9. Support cylinder one; 10. Spring one; 11. Movable column one; 12. Screen plate two; 13. Support cylinder two; 14. Spring two; 15. Movable column two; 16. Rotating roller; 17. Elastic column. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1: As Figs. 1-3 As shown, the present invention proposes a multi-stage rotary vibrating screening device for grain processing, including a vibrating screening box 1. A feeding frame 2 is fixedly connected to one side of the outer surface of the vibrating screening box 1 near the top. Grain is intermittently introduced into the vibrating screening box 1 through the feeding frame 2. The vibrating screening box 1 vibrates and screens the grain. Two sets of screening frames 3 are embedded and fixedly connected inside the vibrating screening box 1. The screening frames 3 and the vibrating screening box 1 are an integral structure, and the interior of the screening frames 3 is arc-shaped.
[0023] Two sets of screening frames 3 and the outer surface of the vibrating screening box 1 are fixedly connected to discharge frames 4 near the bottom. The screened impurities are discharged through the two sets of discharge frames 4 located at the top. The inside of the vibrating screening box 1 is fixedly connected to the inclined guide plate corresponding to the position of the bottom discharge frame 4. The screened grain is discharged through the storage frame corresponding to the guide plate.
[0024] Both sets of screening frames 3 are rotatably connected to screen plates 5. A motor 6 is installed on one outer surface of one set of screening frames 3, and the output end of the motor 6 passes through the interior of the screening frame 3 and is fixedly connected to the screen plate 5. The motor 6 drives the corresponding screen plate 5 to rotate forward and backward. Both sets of screening frames 3 are rotatably connected to transmission wheels 7 on the side of the outer surface away from the motor 6. The transmission wheels 7 are rotatably connected to the screen plate 5 through a rotating shaft. A conveyor belt 8 is connected between the two sets of transmission wheels 7. The two sets of screen plates 5 rotate synchronously forward and backward under the transmission of the conveyor belt 8 and screen the grain in sequence. When one end of the screen plate 5 rotates to correspond to the discharge frame 4, the larger shells, branches and broken leaves and other impurities screened off the surface of the screen plate 5 are discharged through the corresponding discharge frame 4. Then the screen plate 5 flips to the upper side of the discharge frame 4.
[0025] Example 2: Figs. 1-3 As shown, the difference between this embodiment and embodiment 1 is that the sieve hole diameter of the upper sieve plate 5 is larger than that of the lower sieve plate 5, and the outer surface of the sieve plate 5 is in contact with the inner surface of the corresponding screening frame 3.
[0026] A support cylinder 9 is fixedly connected to the upper outer surface of the sieve plate 5 near the middle. The support cylinder 9 is equipped with a spring 10 and a movable column 11. The top of the movable column 11 is hinged to a sieve plate 12. One end of the spring 10 is fixedly connected to the movable column 11, and the other end is fixedly connected to the support cylinder 9. During the rotation of the sieve plate 5, the sieve plate 12 rotates around the movable column 11 in both directions and makes elastic collisions with the sieve plate 5.
[0027] Example 3: Figs. 2-5 As shown, the difference between this embodiment and Embodiments 1 and 2 is that the upper outer surface of the sieve plate 5 is fixedly connected to the support cylinders 13 on both sides of the support cylinder 9. The support cylinders 13 are equipped with springs 14 and movable columns 15. The top of the movable column 15 is embedded with a ball bearing, which contacts the sieve plate 12. One end of the spring 14 is fixedly connected to the movable column 15, and the other end is fixedly connected to the support cylinder 13. During the rotation of the sieve plate 5, the sieve plate 12 squeezes the movable column 15. The width of the sieve plate 12 is smaller than the width of the sieve plate 5. The sieve plate 12 swings repeatedly under the combined action of the spring 14 and its own weight, thereby guiding the grain in portions and making the grain evenly distributed inside the vibrating screening box 1.
[0028] The outer surface of the sieve plate one 5 is provided with rotating rollers 16 on both sides of the two groups of supporting cylinders two 13, the outer surfaces of the two groups of rotating rollers 16 are fixedly connected with a plurality of groups of elastic columns 17 at equal distances, the diameter of the cross section of the elastic column 17 is smaller than the hole diameter of the sieve holes of the sieve plate one 5 and the sieve plate two 12, the rotating roller 16 reciprocally rolls along the sieve plate one 5, and the elastic column 17 repeatedly inserts into the sieve hole of the sieve plate one 5 in the rolling process of the rotating roller 16, so that the falling of the grain is not affected due to the blocking of the sieve plate one 5.
[0029] The working process and principle of the utility model are as follows:
[0030] Step one, the grain is intermittently introduced into the inside of the vibrating sieve box 1 through the feeding frame 2, the grain first falls to the surfaces of the sieve plate one 5 and the sieve plate two 12 located above, the vibrating sieve box 1 vibrates and sieves the grain, the sieve plate two 12 repeatedly vibrates under the action of the spring one 10, the grain is guided and distributed uniformly in the vibrating sieve box 1.
[0031] Step two, the motor 6 drives the corresponding sieve plate one 5 to positively and reversely rotate, the two groups of sieve plate one 5 positively and reversely rotate synchronously under the transmission of the conveying belt 8, and sequentially sieve the grain, the grain falls to the surface of the guide plate and is discharged through the lowermost discharging frame 4 in the rotating process of the sieve plate one 5.
[0032] Step three, when one end of the sieve plate one 5 rotates to correspond to the discharging frame 4, the larger particles, shells, branches and other impurities on the surface of the sieve plate one 5 are discharged through the corresponding discharging frame 4, and then the sieve plate one 5 is turned over to the upper side of the discharging frame 4.
[0033] Step four, in the rotating process of the sieve plate one 5, the sieve plate two 12 positively and reversely rotates around the movable column one 11 and extrudes the movable column two 15, the sieve plate two 12 repeatedly swings under the joint action of the spring two 14 and its own gravity and elastically collides with the sieve plate one 5, so that the vibration frequency of the sieve plate one 5 and the sieve plate two 12 is improved, the sieving efficiency is improved, and the probability of the sieve plate one 5 and the sieve plate two 12 being blocked is reduced.
[0034] Step five, in the rotating process of the sieve plate one 5, the rotating roller 16 reciprocally rolls along the sieve plate one 5, and the elastic column 17 repeatedly inserts into the sieve hole of the sieve plate one 5 in the rolling process of the rotating roller 16, so that the falling of the grain is not affected due to the blocking of the sieve plate one 5, and finally the sieved grain is discharged through the lowermost discharging frame 4.
[0035] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application.
Claims
1. A multi-stage rotary vibratory sifting device for grain processing, comprising a vibratory sifting box (1), characterized in that, The side outer surface of the vibrating screening box (1) is fixedly connected with an inlet frame (2) near the top end, and two groups of screening frames (3) are embeddedly fixedly connected inside the vibrating screening box (1); the screening frames (3) are of an integrated structure with the vibrating screening box (1), and the inside of the screening frame (3) is arc-shaped; The outer surfaces of the two groups of screening frames (3) and the vibrating screening box (1) are fixedly connected with outlet frames (4) near the bottom end, and an inclined guide plate is fixedly connected inside the vibrating screening box (1) and corresponds to the lowermost outlet frame (4); The inside of each of the two groups of screening frames (3) is rotatably connected with a screen plate (5), one side outer surface of one group of the screening frames (3) is provided with a motor (6), the output end of the motor (6) penetrates into the inside of the screening frame (3) and is fixedly connected with the screen plate (5), the outer surface of each of the two groups of screening frames (3) away from the motor (6) is rotatably connected with a transmission wheel (7), and the transmission wheel (7) is rotatably connected with the screen plate (5) through a rotating shaft, and the two groups of transmission wheels (7) are drivingly connected with a conveying belt (8).
2. The multi-stage rotary vibratory screening apparatus for grain processing of claim 1, wherein, The screen hole diameter of the screen plate (5) located at the upper side is greater than that of the screen plate (5) located at the lower side, and the outer surface of the screen plate (5) is attached to the inner surface of the corresponding screening frame (3).
3. The multi-stage rotary vibratory screening apparatus for grain processing of claim 2, wherein, The upper end outer surface of the screen plate (5) is fixedly connected with a support cylinder (9) near the middle, and the inside of the support cylinder (9) is provided with a spring (10) and a movable column (11), the top end of the movable column (11) is hingedly connected with a screen plate (12), one end of the spring (10) is fixedly connected with the movable column (11), the other end is fixedly connected with the support cylinder (9), and the width of the screen plate (12) is less than that of the screen plate (5).
4. The multi-stage rotary vibratory screening apparatus for grain processing of claim 1, wherein, The upper end outer surface of the screen plate (5) is fixedly connected with a support cylinder (9) near the middle, and the inside of the support cylinder (9) is provided with a spring (10) and a movable column (11), the top end of the movable column (11) is hingedly connected with a screen plate (12), one end of the spring (10) is fixedly connected with the movable column (11), the other end is fixedly connected with the support cylinder (9), and the width of the screen plate (12) is less than that of the screen plate (5).
5. A multi-stage rotary vibratory sifting device for grain processing according to claim 4, characterized in that, The outer surface of the screen plate (5) is fixedly connected with a support cylinder (9) near the middle, and the inside of the support cylinder (9) is provided with a spring (10) and a movable column (11), the top end of the movable column (11) is hingedly connected with a screen plate (12), one end of the spring (10) is fixedly connected with the movable column (11), the other end is fixedly connected with the support cylinder (9), and the width of the screen plate (12) is less than that of the screen plate (5). The outer surface of the screen plate (5) is fixedly connected with a support cylinder (9) near the middle, and the inside of the support cylinder (9) is provided with a spring (10) and a movable column (11), the top end of the movable column (11) is hingedly connected with a screen plate (12), one end of the spring (10) is fixedly connected with the movable column (11), the other end is fixedly connected with the support cylinder (9), and the width of the screen plate (12) is less than that of the screen plate (5).