Self-cleaning high efficiency cylindrical primary screen
The design of the self-cleaning high-efficiency cylindrical primary cleaning screen uses a sliding rod and brush head mechanism to automatically clean the screen, solving the problem of screen clogging and improving screening efficiency and equipment operation continuity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YICHENG HEXINYUAN AGRICULTURAL CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-26
AI Technical Summary
The existing cylindrical primary cleaning screen is prone to clogging by impurities during the screening process, which affects screening efficiency and continuous operation of the equipment. Manual cleaning is required, which consumes manpower and time.
A self-cleaning, high-efficiency cylindrical primary cleaning screen was designed. It uses a sliding rod, a limiting plate, and a brush head mechanism to automatically clean the rotating screen cylinder and prevent screen blockage.
It enables automatic cleaning of the screen, prevents clogging, improves screening efficiency and continuous operation time of the equipment, and reduces manual intervention.
Smart Images

Figure CN224405666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of material screening equipment, specifically a self-cleaning high-efficiency cylindrical primary cleaning screen. Background Technology
[0002] In many industries such as feed, grain, and chemicals, the initial cleaning of raw materials is a crucial process. Cylindrical primary cleaning screens, as commonly used primary cleaning equipment, are used to remove large particulate impurities from raw materials, such as straw, stones, and paper scraps, to ensure the normal operation of subsequent processing equipment and product quality.
[0003] However, existing cylindrical primary cleaning screens still have some shortcomings in actual use. For example, during the screening process, the screen is easily clogged by impurities, especially fibrous impurities and fine particulate impurities, which will seriously affect screening efficiency and continuous operation time of the equipment. Once the screen is clogged, the machine needs to be stopped for manual cleaning, which not only consumes manpower and time, but also reduces production efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a self-cleaning, high-efficiency cylindrical primary cleaning screen to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning high-efficiency cylindrical primary cleaning screen, comprising: a box body, a box cover detachably installed on the upper end of the box body, a support leg fixedly connected to the bottom of the box body, a screen cylinder mechanism disposed inside the box body, a reinforcing cylinder fixedly connected to the right side of the box body, a first mounting plate fixedly connected to the right side of the box body, a first motor fixedly connected to the right side of the first mounting plate, a sliding rod slidably connected to the left side of the box body, and two sets of sliding rods are provided, a first limiting plate fixedly connected to the left end of the sliding rod, a second limiting plate fixedly connected to the right end of the sliding rod, a first mounting rod fixedly connected to the right side of the second limiting plate, a first brush head fixedly connected to the upper end of the first mounting rod, and multiple sets of the first brush head are provided, a second mounting rod fixedly connected to the upper end of the first mounting rod, a second brush head fixedly connected to the bottom of the second mounting rod, and multiple sets of the second brush head are provided, and a spring is sleeved on the periphery of the sliding rod.
[0006] Furthermore, the screen cylinder mechanism includes a transmission rod rotatably connected inside the reinforcing cylinder, and a central block fixedly connected to the left end of the transmission rod.
[0007] Furthermore, the screen cylinder mechanism also includes a support rod fixedly connected to the peripheral side of the central block, and multiple sets of the support rod are provided.
[0008] Furthermore, the screen cylinder mechanism also includes a first ring fixedly connected to the end of the support rod away from the central block, and includes a frame fixedly connected to the left side of the first ring, and the frame is provided in multiple sets.
[0009] Furthermore, the sieve cylinder mechanism also includes a second ring fixedly connected to the left end of the frame, and a sieve mesh fixedly connected between the first ring and the second ring.
[0010] Furthermore, a second mounting plate is fixedly connected to the left side of the housing, and a second motor is fixedly connected to the upper end of the second mounting plate.
[0011] Furthermore, a pressing plate is fixedly connected to the output end of the second motor.
[0012] Furthermore, a feed trough is fixedly connected to the upper end of the box cover, and a feed pipe is fixedly connected to the bottom of the feed trough.
[0013] Furthermore, a first discharge chute is fixedly connected to the bottom of the box, and a second discharge chute is fixedly connected to the bottom of the box.
[0014] Furthermore, a baffle is fixedly connected to the upper end of the second feeding trough.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model uses a sliding rod, a first limiting plate, a second limiting plate, a first mounting rod, a first brush head, a second mounting rod, and a second brush head to clean the rotating screen cylinder mechanism, thereby achieving automatic cleaning of the screen cylinder mechanism during operation and preventing the screen from being blocked, which would affect work efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;
[0018] Figure 2 for Figure 1 Structural diagram of the middle box and its internal parts;
[0019] Figure 3 for Figure 2 Schematic diagram of the middle screen cylinder mechanism;
[0020] Figure 4 for Figure 2 A magnified view of a portion of position A in the middle;
[0021] Figure 5 for Figure 1 Schematic diagram of the left side component structure of the middle box;
[0022] Figure 6 for Figure 2 Schematic diagram of the structure of the second feeding trough;
[0023] Figure 7 for Figure 1A schematic diagram of the structure of the feed trough and its bottom parts.
[0024] Reference numerals: 1. Box body; 2. Box cover; 3. Support leg; 4. Screen cylinder mechanism; 41. Transmission rod; 42. Center block; 43. Support rod; 44. First ring; 45. Frame; 46. Second ring; 47. Screen; 5. Reinforcing cylinder; 6. First mounting plate; 7. First motor; 8. Slide rod; 9. First limiting plate; 10. Second limiting plate; 11. First mounting rod; 12. First brush head; 13. Second mounting rod; 14. Second brush head; 15. Spring; 16. Second mounting plate; 17. Second motor; 18. Extrusion plate; 19. Feed chute; 20. Feed pipe; 21. First discharge chute; 22. Second discharge chute; 23. Baffle. Detailed Implementation
[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please refer to the following: Figures 1-7 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 Structural diagram of the middle box and its internal parts; Figure 3 for Figure 2 Schematic diagram of the middle screen cylinder mechanism; Figure 4 for Figure 2 A magnified view of a portion of position A in the middle; Figure 5 for Figure 1 Schematic diagram of the left side component structure of the middle box; Figure 6 for Figure 2 Schematic diagram of the structure of the second feeding trough; Figure 7 for Figure 1A schematic diagram of the structure of the feed trough and its bottom parts, a self-cleaning high-efficiency cylindrical primary cleaning screen, includes: a box body 1, a box cover 2 detachably installed on the upper end of the box body 1, a support leg 3 fixedly connected to the bottom of the box body 1, a screen cylinder mechanism 4 installed inside the box body 1, a reinforcing cylinder 5 fixedly connected to the right side of the box body 1, a first mounting plate 6 fixedly connected to the right side of the first mounting plate 6, a first motor 7 fixedly connected to the right side of the first mounting plate 6, and a sliding rod 8 slidably connected to the left side of the box body 1, with two sets of sliding rods 8, a first limiting plate 9 fixedly connected to the left end of the sliding rod 8. A second limiting plate 10 is fixedly connected to the right end of slide bar 8. A first mounting rod 11 is fixedly connected to the right side of the second limiting plate 10. A first brush head 12 is fixedly connected to the upper end of the first mounting rod 11, and multiple sets of the first brush head 12 are provided. A second mounting rod 13 is fixedly connected to the upper end of the first mounting rod 11. A second brush head 14 is fixedly connected to the bottom of the second mounting rod 13, and multiple sets of the second brush head 14 are provided. A spring 15 is sleeved around the side of slide bar 8. The first brush head 12 contacts the inner wall of screen 47, and the second brush head 14 contacts the side of screen 47.
[0027] The screen cylinder mechanism 4 includes a transmission rod 41 rotatably connected inside the reinforcing cylinder 5. The transmission rod 41 is fixedly connected to the output end of the first motor 7. It also includes a center block 42 fixedly connected to the left end of the transmission rod 41. The transmission rod 41 is installed at an angle according to the inner wall of the reinforcing cylinder 5, with the left end of the transmission rod 41 being higher than the right end.
[0028] The screen cylinder mechanism 4 also includes a support rod 43 fixedly connected to the side of the central block 42, and multiple sets of support rods 43 are provided.
[0029] The screen cylinder mechanism 4 also includes a first ring 44 fixedly connected to the end of the support rod 43 away from the center block 42, and includes a frame 45 fixedly connected to the left side of the first ring 44. Multiple sets of frames 45 are provided, and the second ring 46 and the screen 47 can be fixed by the arrangement of the frames 45.
[0030] The sieve cylinder mechanism 4 also includes a second ring 46 fixedly connected to the left end of the frame 45, and a screen 47 fixedly connected between the first ring 44 and the second ring 46. The screen 47 is cylindrical and located between the first ring 44 and the second ring 46, and the screen 47 is fixedly connected to the frame 45.
[0031] A second mounting plate 16 is fixedly connected to the left side of the housing 1, and a second motor 17 is fixedly connected to the upper end of the second mounting plate 16.
[0032] The output end of the second motor 17 is fixedly connected to the extrusion plate 18. The connection point between the output end of the second motor 17 and the extrusion plate 18 is off-center. The extrusion plate 18 is located between the two sets of slide rods 8.
[0033] The upper end of the box cover 2 is fixedly connected to the feed trough 19, and the bottom of the feed trough 19 is fixedly connected to the feed pipe 20. The discharge port at the bottom of the feed pipe 20 is located inside the second ring 46, which allows the material to enter the inside of the screen 47.
[0034] The bottom of the box 1 is fixedly connected to a first feeding trough 21 and a second feeding trough 22. The bottom of the box 1 is provided with a trough that matches the first feeding trough 21 and the second feeding trough 22. The screened material will fall into the first feeding trough 21 and then be discharged. The screened impurities will fall into the second feeding trough 22 from the right side of the first ring 44 and then be discharged.
[0035] A baffle 23 is fixedly connected to the upper end of the second feeding chute 22. The baffle 23 has a notch at the upper end, which matches the first ring 44. The baffle 23 can separate materials and impurities.
[0036] It should be noted that both the first motor 7 and the second motor 17 can be purchased from the market or customized from the factory, and the wiring connection method and control method are mature technologies in this field and have been fully disclosed, so they will not be described again in this article.
[0037] In summary, the self-cleaning high-efficiency cylindrical primary cleaning screen provided by this utility model, during operation, the first motor 7 drives the transmission rod 41 to rotate, the transmission rod 41 drives the central block 42 to rotate, the central block 42 drives the first ring 44 to rotate through the support rod 43, the first ring 44 drives the second ring 46 to rotate through the frame 45, at which time the screen 47 rotates synchronously, and the cleaning ends of the first brush head 12 and the second brush head 14 can pass through the screen 47 when it rotates, so that the first brush head 12 and the second brush head 14 can clean the inner wall and the peripheral side of the screen 47 at the same time;
[0038] While the screen cylinder mechanism 4 is working, the second motor 17 drives the extrusion plate 18 to rotate. The rotation of the extrusion plate 18 can extrude the first limiting plate 9. At this time, the first limiting plate 9 drives the slide rod 8 to slide to the left along the box 1. When the extrusion plate 18 continues to rotate, it can pass through the right side of the first limiting plate 9. At this time, the spring force of the spring 15 can reset the slide rod 8. The extrusion plate 18 will extrude the first limiting plate 9 once for one rotation. Therefore, the slide rod 8 will slide to the left. When the slide rod 8 slides, the first mounting rod 11 will slide to the left simultaneously. At this time, the first brush head 12 and the second brush head 14 can move back and forth left and right, thereby improving the cleaning effect on the screen 47.
Claims
1. A self-cleaning, high-efficiency cylindrical primary cleaning screen, characterized in that, include: The box body (1) has a detachable cover (2) on its upper end. The bottom of the box body (1) is fixedly connected to a support leg (3). The box body (1) is equipped with a screen cylinder mechanism (4). The right side of the box body (1) is fixedly connected to a reinforcing cylinder (5). The right side of the box body (1) is fixedly connected to a first mounting plate (6). The right side of the first mounting plate (6) is fixedly connected to a first motor (7). The left side of the box body (1) is slidably connected to a sliding rod (8), and there are two sets of sliding rods (8). The left end of the sliding rod (8) is fixedly connected to a first limiting plate. (9) A second limiting plate (10) is fixedly connected to the right end of the slide rod (8). A first mounting rod (11) is fixedly connected to the right side of the second limiting plate (10). A first brush head (12) is fixedly connected to the upper end of the first mounting rod (11), and multiple sets of the first brush head (12) are provided. A second mounting rod (13) is fixedly connected to the upper end of the first mounting rod (11). A second brush head (14) is fixedly connected to the bottom of the second mounting rod (13), and multiple sets of the second brush head (14) are provided. A spring (15) is sleeved on the periphery of the slide rod (8).
2. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 1, characterized in that, The screen cylinder mechanism (4) includes a transmission rod (41) rotatably connected inside the reinforcing cylinder (5), and a center block (42) fixedly connected to the left end of the transmission rod (41).
3. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 2, characterized in that, The screen cylinder mechanism (4) also includes a support rod (43) fixedly connected to the periphery of the central block (42), and the support rod (43) is provided in multiple sets.
4. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 3, characterized in that, The screen cylinder mechanism (4) further includes a first ring (44) fixedly connected to the end of the support rod (43) away from the center block (42), and includes a frame (45) fixedly connected to the left side of the first ring (44), and the frame (45) is provided in multiple sets.
5. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 4, characterized in that, The sieve cylinder mechanism (4) also includes a second ring (46) fixedly connected to the left end of the frame (45), including a sieve (47) fixedly connected between the first ring (44) and the second ring (46).
6. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 5, characterized in that, A second mounting plate (16) is fixedly connected to the left side of the housing (1), and a second motor (17) is fixedly connected to the upper end of the second mounting plate (16).
7. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 6, characterized in that, The output end of the second motor (17) is fixedly connected to an extrusion plate (18).
8. The self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 7, characterized in that, The upper end of the box cover (2) is fixedly connected to the feed trough (19), and the bottom of the feed trough (19) is fixedly connected to the feed pipe (20).
9. A self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 8, characterized in that, The bottom of the box (1) is fixedly connected to a first discharge trough (21), and the bottom of the box (1) is fixedly connected to a second discharge trough (22).
10. A self-cleaning high-efficiency cylindrical primary cleaning screen according to claim 9, characterized in that, A baffle (23) is fixedly connected to the upper end of the second feeding trough (22).