Drum screen with screen hole cleaning function

Abstract

The utility model discloses a drum screen with a screen hole cleaning function, which comprises a mounting table, a screen barrel body arranged above the mounting table, a driving device arranged on the mounting table and a vibrating mechanism mounted on the mounting table, the vibrating mechanism comprises four groups of mounting rods, each mounting rod is provided with a mounting groove, a sliding rod is arranged in every two groups of mounting grooves in a sliding manner, and the screen barrel body is arranged on the mounting table. Reset parts are installed in the sliding rods, a beating roller is arranged between the two sets of sliding rods, beating assemblies are arranged on the installation rods, and a cleaning mechanism is arranged between the two sets of installation rods. Through the synergistic effect of the vibrating mechanism and the cleaning mechanism, efficient anti-blocking and continuous cleaning of the screen holes are achieved, so that the screening efficiency is remarkably improved, compared with traditional single vibrating screening equipment, the double anti-blocking mechanism can reduce the blocking probability of the screen holes and is particularly suitable for materials which are large in viscosity or prone to caking, and in addition, the screening efficiency is improved. Energy consumption in the screening process can be reduced through continuous and smooth screen holes, motor overload caused by blockage is avoided, and the comprehensive efficiency is improved.

Description

A drum screen with screen hole cleaning function Technical Field

[0001] This utility model relates to the field of rotary screen technology, specifically a rotary screen with screen hole cleaning function. Background Technology

[0002] In the utility model patent application entitled "A Rotary Drum Screen" with application publication number CN222057977U, application publication date November 26, 2024, this utility model discloses a rotary drum screen, belonging to the field of brick-making technology. The key technical point is that the rotary drum screen includes a screen body and a conveying assembly. The conveying assembly includes a working frame, two guide rails, two rolling rollers, an electric conveyor belt, a hopper, a connecting pipe, a hollow column, a bearing seat, a rotating shaft, and a fixed seat. The other end of the connecting pipe is connected to the hopper. The rotating shaft is fixedly connected to the screen body, and the fixed seat is fixedly connected to the working frame. The rotating shaft is rotatably connected to the fixed seat. When the electric conveyor belt is started, fly ash is moved into the hopper and then discharged into the screen body through the connecting pipe. The screen body is then rotated, causing the hollow column and rotating shaft to rotate within their respective bearing seats and fixed seats, thus screening the fly ash. This method avoids manual feeding by workers, effectively reducing worker fatigue and improving the efficiency and quality of fly ash screening for subsequent processing.

[0003] In the aforementioned patents or prior art, when the rotary screen is screening materials, excessively high moisture content or excessively large particles can cause the screen holes to become clogged, preventing the materials from passing through smoothly. This results in a significant decrease in screening efficiency, affecting production progress and output. Furthermore, materials that easily pass through the screen holes, such as mud or fine powder, can easily form a paste-like substance on the screen surface, affecting the passage of other particles. Summary of the Invention

[0004] The purpose of this invention is to provide a drum screen with a screen hole cleaning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drum screen with a screen hole cleaning function, comprising a mounting platform, a screen barrel body above the mounting platform, a driving device for driving the screen barrel body to rotate on the mounting platform, a vibration mechanism for vibrating the screen barrel body on the mounting platform, the vibration mechanism comprising four sets of mounting rods, mounting grooves on the mounting rods, sliding rods slidably arranged in every two sets of mounting grooves, a reset component installed in the sliding rods, a striking roller arranged between the two sets of sliding rods, a striking component above two sets of mounting rods, and a cleaning mechanism arranged between the two sets of mounting rods.

[0006] Furthermore, the reset component includes a spring installed in the mounting groove, one end of which is connected to the inner wall of the mounting groove, and the other end of which is connected to a sliding rod.

[0007] Furthermore, the striking assembly includes a second fixing plate fixed on two sets of mounting rods, a connecting rod rotatably mounted on the second fixing plate, one end of the connecting rod being connected to a second rotating wheel and the other end being connected to a cam, and a first driving assembly for driving the second rotating wheel to rotate is provided on the screen barrel body.

[0008] Furthermore, the first driving component includes a first fixing plate fixed to one end of the screen barrel body, a first rotating wheel provided on the first fixing plate, and the second rotating wheel and the first rotating wheel are connected by a first conveyor belt.

[0009] Furthermore, the cleaning mechanism includes fixed blocks mounted on two sets of mounting rods, a cleaning rod rotatably disposed between the fixed blocks, a sliding groove provided on the cleaning rod, a cleaning brush slidably disposed in the sliding groove, the cleaning rod being driven to rotate by a second drive assembly, and matching limiting components provided on the cleaning brush and the sliding groove.

[0010] Furthermore, the second drive assembly includes a third rotating wheel mounted on one end of the cleaning rod, the third rotating wheel being connected to the first rotating wheel via a second conveyor belt.

[0011] Furthermore, the limiting component includes limiting blocks disposed at both ends of the cleaning brush, and the slide groove is provided with limiting grooves that cooperate with the limiting blocks.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this drum screen with screen hole cleaning function is reasonable and has the following advantages:

[0013] (1) This drum screen achieves efficient anti-clogging of the screen holes through a vibration mechanism, thereby improving screening efficiency. The vibration mechanism drives the slide bar and the impact roller to generate regular vibration on the screen barrel body through the periodic striking action of the cam. This vibration can not only effectively break the accumulation state of the material on the screen surface, but also promote the dislodgement of particles stuck in the screen holes, avoiding complete blockage of the screen holes due to material adhesion. According to the working principle description, the asymmetrical design of the cam will apply an impact force to the slide bar once for each rotation. The reset action of the spring ensures the continuity of the striking action. This dynamic vibration mode can cover The entire working area of ​​the screen barrel ensures the flowability of materials during the screening process, thereby maintaining stable screening efficiency. At the same time, the mechanical vibration generated by the periodic impact of the vibration mechanism not only prevents screen hole clogging but also reduces static friction between the material and the screen surface. In traditional screening equipment, long-term accumulation of material can lead to increased local wear on the screen surface. However, the uniform vibration of the impact roller in this design makes the material distribution more even, avoiding local stress concentration. The buffering effect of the spring further absorbs the impact energy, protects the connection structure of the mounting rod and the slide rod, reduces the risk of metal fatigue, and reduces the wear rate of the screen barrel body.

[0014] (2) The drum screen achieves continuous cleaning of the screen holes through the cleaning mechanism. The cleaning mechanism uses synchronously driven cleaning brushes to physically clean the outer wall of the screen barrel, further enhancing the anti-clogging effect. The rotation of the cleaning rod drives multiple sets of cleaning brushes to contact the surface of the screen barrel. Its flexible material can effectively scrape off the adhering fine particles without damaging the screen surface structure. The design of the sliding groove and the limiting block makes it convenient to replace the cleaning brush. The staff can quickly adjust the cleaning intensity according to the wear condition. The sliding groove and the limiting block can achieve quick disassembly and assembly. Replacement can be completed without special tools, shortening the single maintenance time. Compared with the traditional welded cleaning parts, this design avoids downtime losses caused by overall replacement. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of one side of this utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the other side of this utility model;

[0017] Figure 3 is a schematic diagram of the vibration mechanism of this utility model;

[0018] Figure 4 is an enlarged structural schematic diagram of point A of this utility model;

[0019] Figure 5 is a structural schematic diagram of the mounting rod plane of this utility model;

[0020] Figure 6 is a schematic diagram of the planar structure of the striking component of this utility model;

[0021] Figure 7 is a schematic diagram of the cleaning mechanism of this utility model;

[0022] Figure 8 is an enlarged structural schematic diagram of section B of this utility model.

[0023] In the diagram: 100, mounting platform; 101, driving device; 102, screen barrel body; 200, mounting rod; 201, mounting groove; 202, sliding rod; 203, spring; 204, striking roller; 300, first fixed plate; 301, first rotating wheel; 302, second fixed plate; 303, second rotating wheel; 304, connecting rod; 305, cam; 306, first conveyor belt; 400, fixing block; 401, cleaning rod; 402, third rotating wheel; 403, second conveyor belt; 404, chute; 405, cleaning brush; 406, limiting groove; 407, limiting block. Detailed Implementation

[0024] 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.

[0025] Please refer to Figures 1-8, which illustrate a technical solution provided by this utility model:

[0026] Example 1:

[0027] A rotary drum screen with a screen hole cleaning function includes a mounting platform 100, a screen barrel body 102 above the mounting platform 100, a driving device 101 for driving the screen barrel body 102 to rotate on the mounting platform 100, a vibration mechanism for vibrating the screen barrel body 102 on the mounting platform 100, the vibration mechanism including four sets of mounting rods 200, each mounting rod 200 having a mounting groove 201, a sliding rod 202 slidably arranged in every two sets of mounting grooves 201, a reset component installed in the sliding rod 202, a striking roller 204 arranged between two sets of sliding rods 202, a striking component above two sets of mounting rods 200, and a cleaning mechanism arranged between two sets of mounting rods 200.

[0028] The reset component includes a spring 203 installed in the mounting groove 201. One end of the spring 203 is connected to the inner wall of the mounting groove 201, and the other end is connected to the slide rod 202.

[0029] The striking assembly includes a second fixing plate 302 fixed on two sets of mounting rods 200. A connecting rod 304 is rotatably mounted on the second fixing plate 302. One end of the connecting rod 304 is connected to a second rotating wheel 303, and the other end is connected to a cam 305. A first driving assembly for driving the second rotating wheel 303 to rotate is provided on the screen barrel body 102.

[0030] The first driving component includes a first fixing plate 300 fixed to one end of the screen barrel body 102, a first rotating wheel 301 is provided on the first fixing plate 300, and the second rotating wheel 303 is connected to the first rotating wheel 301 by a first conveyor belt 306.

[0031] The cleaning mechanism includes a fixing block 400 mounted on two sets of mounting rods 200. A cleaning rod 401 is rotatably disposed between the fixing blocks 400. A sliding groove 404 is provided on the cleaning rod 401. A cleaning brush 405 is slidably disposed in the sliding groove 404. The cleaning rod 401 is driven to rotate by a second driving assembly. The cleaning brush 405 and the sliding groove 404 are provided with matching limiting components.

[0032] The second drive assembly includes a third rotating wheel 402 mounted on one end of the cleaning rod 401, and the third rotating wheel 402 is connected to the first rotating wheel 301 via a second conveyor belt 403.

[0033] The limiting component includes limiting blocks 407 disposed at both ends of the cleaning brush 405, and the sliding groove 404 is provided with limiting grooves 406 that cooperate with the limiting blocks 407.

[0034] Working principle: During use, the drive device 101 drives the screen barrel body 102 to rotate. During the screening process, material may clog the screen holes, which can lead to excessive wear of the screen barrel and increase the load on the equipment, resulting in increased energy consumption. Therefore, a vibration mechanism and a cleaning mechanism can be used to prevent screen hole clogging. Since the screen barrel body 102 is equipped with a first rotating wheel 301, the first rotating wheel 301 rotates simultaneously with the screen barrel body 102, thereby driving the second rotating wheel 303 to rotate via the first conveyor belt 306. This causes cam 305 to rotate. Due to the asymmetrical design of cam 305, as shown in Figure 2, it strikes the slide rod 202 located below it while rotating. Since the slide rod 202 is slidably set in the mounting groove 201, both sets of slide rods 202 slide downwards during the strike, simultaneously driving the striking roller 204 between the two sets of slide rods 202 to move downwards and strike the screen barrel body 102. This, combined with spring 203, causes the two sets of slide rods 202 to reset, thus generating periodic vibration. This prevents material from accumulating on the screen surface, keeps the screen holes unobstructed, and maintains high efficiency during the screening process. To improve efficiency and reduce friction between materials and the screen surface, thereby reducing wear and extending the equipment's service life, the first rotating wheel 301 rotates simultaneously with the second conveyor belt 403, driving the third rotating wheel 402 to rotate. The rotation of the third rotating wheel 402 causes the cleaning rod 401 to rotate. As the cleaning rod 401 rotates, multiple sets of cleaning brushes 405 mounted on it contact the outer wall of the screen barrel body 102, cleaning the screen barrel body 102. With the continuous rotation of the screen barrel body 102, the cleaning brushes 405 continuously contact the screen barrel body 102. The screen body 102 has a surface contact mechanism to continuously clean the screen holes and prevent clogging. This design allows for timely cleaning of the screen holes, maintaining high efficiency in the screening process and preventing a decrease in throughput due to screen hole clogging. The cleaning brush 405 is detachable and can be easily installed via the sliding groove 404. The installation is also facilitated by the cooperation of the limiting groove 406 and the limiting block 407. Simply slide the cleaning brush 405 along the sliding groove 404 and align the limiting block 407 with the limiting groove 406 for installation, making replacement convenient.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drum screen with screen hole cleaning function, comprising a mounting platform (100), characterized in that: The mounting platform (100) is provided with a screen barrel body (102) above it. The mounting platform (100) is provided with a drive device (101) for driving the screen barrel body (102) to rotate. The mounting platform (100) is provided with a vibration mechanism for vibrating the screen barrel body (102). The vibration mechanism includes four sets of mounting rods (200). The mounting rods (200) are provided with mounting grooves (201). Sliding rods (202) are slidably provided in every two sets of mounting grooves (201). Reset components are installed in the sliding rods (202). A striking roller (204) is provided between the two sets of sliding rods (202). A striking component is provided above two sets of mounting rods (200). A cleaning mechanism is provided between the two sets of mounting rods (200).

2. A drum screen with screen hole cleaning function according to claim 1, characterized in that: The reset component includes a spring (203) installed in the mounting groove (201), one end of the spring (203) being connected to the inner wall of the mounting groove (201), and the other end being connected to a slide rod (202).

3. A drum screen with screen hole cleaning function according to claim 1, characterized in that: The striking assembly includes a second fixing plate (302) fixed on two sets of mounting rods (200). A connecting rod (304) is rotatably mounted on the second fixing plate (302). One end of the connecting rod (304) is connected to a second rotating wheel (303), and the other end is connected to a cam (305). A first driving assembly for driving the second rotating wheel (303) to rotate is provided on the screen barrel body (102).

4. A drum screen with screen hole cleaning function according to claim 3, characterized in that: The first driving component includes a first fixing plate (300) fixed to one end of the screen barrel body (102), a first rotating wheel (301) is provided on the first fixing plate (300), and the second rotating wheel (303) is connected to the first rotating wheel (301) by a first conveyor belt (306).

5. A drum screen with screen hole cleaning function according to claim 4, characterized in that: The cleaning mechanism includes a fixing block (400) mounted on two sets of mounting rods (200), a cleaning rod (401) rotatably disposed between the fixing blocks (400), a sliding groove (404) provided on the cleaning rod (401), a cleaning brush (405) slidably disposed in the sliding groove (404), the cleaning rod (401) is driven to rotate by a second driving assembly, and the cleaning brush (405) and the sliding groove (404) are provided with matching limiting components.

6. A drum screen with screen hole cleaning function according to claim 5, characterized in that: The second drive assembly includes a third rotating wheel (402) mounted on one end of the cleaning rod (401), and the third rotating wheel (402) is connected to the first rotating wheel (301) by a second conveyor belt (403).

7. A drum screen with screen hole cleaning function according to claim 5, characterized in that: The limiting component includes limiting blocks (407) disposed at both ends of the cleaning brush (405), and the slide groove (404) is provided with a limiting groove (406) that cooperates with the limiting blocks (407).

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