Drum screen with reliable anti-blocking structure

Abstract

The utility model relates to the technical field of screening equipment, in particular to a drum screen with a reliable anti-blocking structure, which comprises a shell, a screen drum, an anti-blocking device and a driving device, the screen drum is rotatably mounted in the shell, a feeding pipe is rotatably mounted at one end of the screen drum, a feeding hole is formed in the side wall of one side of the shell, and a discharging hole is formed in the side wall of the other side of the shell. The feeding pipe is fixedly connected with the feeding port, the rotating pipe is fixedly installed at the end, away from the feeding port, of the screen barrel, and the inner wall of the rotary screen can be scraped in the rotating process of the rotary screen every time, so that even if materials try to block the inner wall of the screen barrel in the screening process, the materials can be removed in time, and the screening efficiency is improved. And the electric telescopic rod is started, vibration of the hard bristles can effectively remove materials attached to the outer wall of the screen cylinder, the hardness of the hard bristles is matched with ascending and descending of the electric telescopic rod, the materials blocking the screen holes can also be beaten, the screen holes are further prevented from being blocked, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a drum screen with a reliable anti-blocking structure. Background Art

[0002] As we all know, in the field of material screening, drum screen is a common screening equipment and is widely used in various industrial production lines.

[0003] During the use of traditional drum screens, the screen drum often encounters the problem of clogging, which not only affects the screening efficiency, but also increases labor intensity and maintenance costs. The clogging problem is usually caused by the accumulation of materials during the screening process and adherence to the inner and outer walls of the screen drum, as well as the screen holes, resulting in poor screening. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a drum screen with a reliable anti-blocking structure.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drum screen with a reliable anti-blocking structure, comprising a shell, a screen drum, an anti-blocking device and a driving device, the screen drum is rotatably installed in the shell, one end of the screen drum is rotatably installed with the feed pipe, one side wall of the shell is provided with a feed port, the feed pipe is fixedly connected to the feed port, the end of the screen drum away from the feed port is fixedly installed with a rotating tube, the rotating tube passes through the side wall of the shell and the driving device is installed, the anti-blocking device comprises a fixed shaft, a bearing, a fixed plate, a support frame, an electric telescopic rod, a lifting The fixed shaft is fixedly mounted on one end of the inner wall of the shell close to the rotating tube, the output end of the fixed shaft is connected to the screen cylinder through a bearing, and fixed plates are mounted on both sides of the left and right sides of the end of the fixed shaft away from the shell, a rectangular groove running through the inner cavity of the shell is provided at the top of the shell, the support frame is mounted on the top of the shell, the electric telescopic rod is mounted on the support frame, the output end of the electric telescopic rod passes through the support frame and is mounted on the lifting plate, the vibration motor is mounted on the top of the lifting plate, and the hard bristles are mounted on the bottom wall of the lifting plate.

[0008] In order to facilitate the driving of the screen drum to rotate, the utility model is improved in that the driving device includes a driving wheel, a driven wheel, a conveyor belt and a driving motor, the outer wall of the rotating tube is provided with the driven wheel, the output end of the driving motor is installed with the driving wheel, the driving wheel and the driven wheel are connected by the conveyor belt, and the driving motor is installed on the side wall of the outer shell through a support plate.

[0009] In order to facilitate the collection of the screened materials, the utility model is improved in that a discharge port is provided on the lower side wall of the shell, and a collection box is slidably installed in the discharge port.

[0010] In order to facilitate the pulling out of the collection box, the present invention is improved in that a handle is installed on the outer wall of the collection box.

[0011] In order to facilitate the limiting of the lifting plate, the present invention is improved in that limiting plates are installed on the top walls at both ends of the lifting plate.

[0012] In order to better fit the inner wall of the screen cylinder, the present invention has an improvement in that the fixing plate is U-shaped.

[0013] In order to ensure the stability and accuracy of the operation of the vibration motor and the drive motor, the present invention has the following improvements: the vibration motor and the drive motor are both servo motors.

[0014] In order to ensure the stable support of the shell, the utility model is improved in that support legs are installed at the four corners of the bottom end of the shell.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a drum screen with a reliable anti-blocking structure, which has the following beneficial effects:

[0017] The drum screen with a reliable anti-blocking structure has an anti-blocking device. The fixed plate scrapes the inner wall of the screen drum during the rotation of the screen drum, removes materials that attempt to block the inner wall of the screen drum, maintains smooth screening, and prevents them from accumulating and causing blockage. The electric telescopic rod drives the lifting plate to descend so that the hard brush bristles contact the top wall of the screen drum. The hard brush bristles cooperate with the vibration of the vibration motor to effectively remove materials attached to the outer wall of the screen drum. The hardness of the hard brush bristles cooperates with the lifting and lowering of the electric telescopic rod to hit the materials blocking the screen holes, further preventing the blockage of the screen holes and improving the screening efficiency and reliability of the screen drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first angle;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0020] Figure 3 This is a schematic diagram of the half-cut three-dimensional structure of the shell of the utility model;

[0021] Figure 4 It is a schematic diagram of the half-section three-dimensional structure of the shell, screen cylinder and connecting parts of the utility model.

[0022] In the figure: 1. Outer shell; 2. Screen cylinder; 3. Feed pipe; 4. Feed port; 5. Rotating tube; 6. Fixed shaft; 7. Bearing; 8. Fixed plate; 9. Support frame; 10. Electric telescopic rod; 11. Lifting plate; 12. Hard brush bristles; 13. Vibrating motor; 14. Driving wheel; 15. Driven wheel; 16. Conveyor belt; 17. Driving motor; 18. Discharge port; 19. Collection box; 20. Handle; 21. Limiting plate; 22. Support leg. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4, a drum screen with a reliable anti-blocking structure, comprising a shell 1, a screen drum 2, an anti-blocking device and a driving device, the screen drum 2 is rotatably installed in the shell 1, one end of the screen drum 2 is rotatably installed with the feed pipe 3, one side wall of the shell 1 is provided with a feed port 4, the feed pipe 3 is fixedly connected to the feed port 4, the end of the screen drum 2 away from the feed port 4 is fixedly installed with a rotating tube 5, the rotating tube 5 passes through the side wall of the shell 1 and is installed with the driving device, the anti-blocking device comprises a fixed shaft 6, a bearing 7, a fixed plate 8, a support frame 9, an electric telescopic rod 10, a lifting plate 11, hard bristles 12 and a vibration motor 13, the inner wall of the shell 1 is fixedly installed with the fixed shaft 6 at one end close to the rotating tube 5, the output end of the fixed shaft 6 is connected to the screen cylinder 2 through a bearing 7, and the fixed shaft 6 is installed on both sides of the left and right sides of the end away from the shell 1. A rectangular groove that passes through the inner cavity of the shell 1 is opened at the top of the shell 1, and the support frame 9 is installed on the top of the shell 1. The electric telescopic rod 10 is installed on the support frame 9, and the output end of the electric telescopic rod 10 passes through the support frame 9 and is installed with the lifting plate 11. The top of the lifting plate 11 The vibrating motor 13 is installed at the end, and the hard brush 12 is installed on the bottom wall of the lifting plate 11. In this embodiment, when in use, the material to be screened is put into the screen drum 2 through the feed pipe 3, and then the screen drum 2 is driven to rotate by the driving device to realize the screening of the material. Since the fixed shaft 6 is fixedly connected to the shell 1 and is rotatably connected to the drum screen through the bearing 7, the fixed shaft 6 fixes the fixed plate 8 in the drum screen. When the drum screen rotates, the material will be subjected to the action of centrifugal force and try to move outward. Each time the drum screen rotates, it will scrape the inner wall of the drum screen. In this way, even if the material is on the screen, During the screening process, materials that attempt to clog the inner wall of the screen cylinder 2 will also be cleared away in time, thereby maintaining smooth screening and preventing them from accumulating and causing blockage. At the same time, the electric telescopic rod 10 is started, and the output end of the electric telescopic rod 10 drives the lifting plate 11 to descend through the rectangular slot, so that the hard bristles 12 contact the top wall of the screen cylinder 2, and the vibration motor 13 is started, and the hard bristles 12 begin to vibrate. The vibration of the hard bristles 12 can effectively remove the material attached to the outer wall of the screen cylinder 2, and the hardness of the hard bristles 12 can cooperate with the lifting and lowering of the electric telescopic rod 10 to hit the material that clogs the screen hole, further preventing the screen hole from being blocked and improving the screening efficiency.

[0025] The transmission mechanism 16 of the present invention is used to drive the screen drum 2 to rotate, and the transmission mechanism 16 of the present invention is used to drive the screen drum 2 to rotate.

[0026] In actual use, in order to further facilitate the collection of the screened material, in this embodiment, a discharge port 18 is provided on the lower side wall of the shell 1, and a collection box 19 is slidably installed in the discharge port 18. The sliding installation method of the collection box 19 allows the operator to easily pull out or push the collection box 19 from the discharge port 18, so as to conveniently and quickly collect the screened material.

[0027] In actual use, in order to further facilitate the pulling out of the collection box 19 , in this embodiment, a handle 20 is installed on the outer wall of the collection box 19 . The presence of the handle 20 allows the operator to easily pull or push the collection box 19 .

[0028] During actual use, it is further convenient to limit the lifting plate 11. In this embodiment, limit plates 21 are installed on the top walls of the left and right ends of the lifting plate 11. The limit plates 21 are convenient for limiting the top wall of the lifting plate 11 to prevent the lifting plate 11 from rising excessively and damaging the vibration motor 13.

[0029] During actual use, in order to further fit the inner wall of the screen cylinder 2, in this embodiment, the fixing plate 8 is U-shaped, and the U-shaped design can better match the inner wall of the screen cylinder 2 to ensure a tight fit between the fixing plate 8 and the screen cylinder 2.

[0030] During actual use, the stability and accuracy of the operation of the vibration motor 13 and the drive motor 17 are further guaranteed. In this embodiment, the vibration motor 13 and the drive motor 17 are both servo motors. The servo motor can control the position, speed and torque with high precision. The servo motor adopts closed-loop control and has good stability. It can avoid problems such as stalling and vibration, thereby ensuring the stability and accuracy of the operation of the vibration motor 13 and the drive motor 17.

[0031] In actual use, in order to further ensure the support stability of the shell 1, in this embodiment, support legs 22 are installed at the four corners of the bottom end of the shell 1. The design of the four-corner support can provide a wider support surface, thereby improving the stability of the entire structure.

[0032] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drum screen with a reliable anti-blocking structure, comprising a housing (1), a screen drum (2), an anti-blocking device and a driving device, characterized in that: The screen drum (2) is rotatably mounted in the housing (1), and a feed pipe (3) is rotatably mounted on one end of the screen drum (2). A feed port (4) is provided on one side wall of the housing (1), and the feed pipe (3) is fixedly connected to the feed port (4). A rotating tube (5) is fixedly mounted on one end of the screen drum (2) away from the feed port (4). The rotating tube (5) passes through the side wall of the housing (1) and is mounted with the driving device. The anti-blocking device comprises a fixed shaft (6), a bearing (7), a fixed plate (8), a support frame (9), an electric telescopic rod (10), a lifting plate (11), hard brush bristles (12) and a vibration motor (13). The inner wall of the housing (1) is close to the rotating tube (5). The fixed shaft (6) is fixedly installed at the end, the output end of the fixed shaft (6) is connected to the screen drum (2) through a bearing (7), and fixed plates (8) are installed on both sides of the left and right sides of the end of the fixed shaft (6) away from the shell (1). The top of the shell (1) is provided with a rectangular groove that passes through the inner cavity of the shell (1), and the top of the shell (1) is provided with the support frame (9), and the electric telescopic rod (10) is installed on the support frame (9). The output end of the electric telescopic rod (10) passes through the support frame (9) and is installed with the lifting plate (11), the top of the lifting plate (11) is provided with the vibration motor (13), and the bottom wall of the lifting plate (11) is provided with the hard brush bristles (12).

2. The drum screen with a reliable anti-blocking structure according to claim 1, characterized in that: The driving device comprises a driving wheel (14), a driven wheel (15), a conveyor belt (16) and a driving motor (17); the outer wall of the rotating tube (5) is provided with the driven wheel (15); the output end of the driving motor (17) is equipped with the driving wheel (14); the driving wheel (14) and the driven wheel (15) are connected through the conveyor belt (16); and the driving motor (17) is installed on the side wall of the housing (1) through a support plate.

3. The drum screen with a reliable anti-blocking structure according to claim 2, characterized in that: A discharge port (18) is provided on the lower side wall of the housing (1), and a collection box (19) is slidably mounted in the discharge port (18).

4. The drum screen with a reliable anti-blocking structure according to claim 3, characterized in that: A handle (20) is installed on the outer wall of the collection box (19).

5. The drum screen with a reliable anti-blocking structure according to claim 4, characterized in that: Limiting plates (21) are installed on the top walls at both ends of the lifting plate (11).

6. The drum screen with a reliable anti-blocking structure according to claim 5, characterized in that: The fixing plate (8) is of U-shaped design.

7. The drum screen with a reliable anti-blocking structure according to claim 6, characterized in that: The vibration motor (13) and the drive motor (17) are both servo motors.

8. The drum screen with a reliable anti-blocking structure according to claim 7, characterized in that: Support legs (22) are installed at the four corners of the bottom end of the housing (1).

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