Rotary screen
By using the corresponding design of the torsion spring and the screen holes in the drum screen and the spiral distribution of the guide plate, the problems of clogging and separate operations of the screen holes are solved, and efficient material screening and synchronous loading, screening and discharge of materials are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202422211737.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-09
AI Technical Summary
During the use of existing roller screens, the raw materials are prone to clogging the screen holes, resulting in a decrease in screening efficiency, and the loading and discharge need to be carried out separately, making the efficiency less.
The design of torsion spring and screen holes is adopted, combined with the spiral distribution of the guide plate, the uniform transport of materials is achieved, and the material is loaded, screened and discharged through the waste hole and the discharge port are synchronized. The torsion spring is used to push the blocked material to avoid accumulation.
Improve screening efficiency, avoid clogging of screen holes, achieve uniform distribution and synchronous operation of materials, and increase production efficiency.
Smart Images
Figure CN223276647U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening devices, in particular to a drum screen. Background Art
[0002] In existing industrial applications, a trommel screen is a mechanical device used to screen products according to their specifications. It primarily consists of a motor, reducer, drum assembly, frame, sealing cover, and inlet and outlet ports. A widely used machine in sorting technology, trommel screens screen materials by rolling them within the screen, achieving high sorting accuracy and high throughput.
[0003] During the use of the existing drum screen, the raw materials are easy to clog the screen holes, which leads to reduced screening efficiency and is not conducive to uniform distribution of screening in the drum. This can easily cause accumulation and blockage during screening. In addition, the loading and discharging of the existing drum screen need to be carried out separately, which is inefficient and poor in practicality.
[0004] Therefore, those skilled in the art are in urgent need of developing a drum screen. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a drum screen.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a drum screen, comprising a frame, a drum shell is provided on the top of the frame, a drum is rotatably arranged inside the drum shell, screening holes are provided on the side walls of the drum, a material cleaning assembly is provided on the top of the drum, the material cleaning assembly includes a fixed rod provided on the inner wall of the drum shell, a torsion spring is connected to the fixed rod, and a driving assembly for rotating the drum is provided on the frame.
[0007] Preferably, the top end of the torsion spring is connected to a torsion spring fixing sleeve, and the torsion spring fixing sleeve is sleeved on the fixing rod.
[0008] Preferably, the shape of the sieve holes is vertical bar-shaped, and there are multiple torsion springs, and the positions of the torsion springs and the sieve holes correspond one to one.
[0009] Preferably, the inner wall of the drum is provided with a material guide plate, and the number of the material guide plates is multiple and distributed in a spiral shape inside the drum.
[0010] Preferably, a waste hole is provided on the left side of the sieve hole and is opened on the side wall of the drum. A waste port and a discharge port are provided on the frame, and the waste port and the discharge port are separated by a block. The frame and the drum shell are connected to each other, the waste port is located directly below the waste hole, and the discharge port is located directly below the sieve hole.
[0011] Preferably, a feed pipe is connected through the right side of the drum shell, and a feed hopper is connected to the top of the feed pipe. The left and right ends of the drum are rotatably connected to the drum shell through drum shaft 1 and drum shaft 2 respectively. The drum shaft 2 is a hollow structure, and the left and right ends of the drum shaft 2 are respectively connected to the drum and the feed pipe.
[0012] Preferably, the driving assembly includes a motor arranged on a frame, an output end of the motor is connected to a gear, a notch is provided on the outer shell of the drum, a gear ring is provided on the drum, and the gear is meshed with the gear ring through the notch for transmission.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] In the utility model, the contact between the torsion spring and the screening hole is used to push the material blocked in the screen hole into the drum, so as to avoid affecting the screening effect; the guide plate transports the material to be screened inside from right to left along the spiral direction, so as to avoid accumulation inside the drum and facilitate uniform distribution and screening in the drum; finally, the remaining material is transported to the leftmost end and discharged from the waste port below through the waste hole. Loading, screening and discharging are carried out simultaneously, thereby increasing production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a front structural sectional view of the present utility model;
[0017] Figure 3 for Figure 1 A magnified view of the structure at center A;
[0018] Figure 4 for Figure 2 A magnified view of the structure at point B in the middle;
[0019] Figure 5 This is a cross-sectional view of the drum of the present invention;
[0020] Figure 6 This is a structural diagram of the torsion spring described in the present utility model.
[0021] In the figure: 1-frame; 2-drum shell; 3-feed hopper; 4-feed pipe; 5-motor; 6-gear; 7-gap; 8-drum; 81-drum shaft 1; 82-drum shaft 2; 9-gear ring; 10-screen hole; 11-waste hole; 12-stopper; 13-waste outlet; 14-discharge outlet; 15-fixing rod; 16-torsion spring; 161-torsion spring fixing sleeve; 17-guide plate. DETAILED DESCRIPTION
[0022] The present invention is described below in conjunction with the accompanying drawings and specific embodiments of the present invention. The description herein is intended only to explain the present invention and is not intended to limit the present invention. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without creative work to all other embodiments obtained based on the embodiments of the present invention shall be included within the scope of protection of the present invention.
[0023] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0025] Example 1
[0026] See also Figures 1-6The utility model provides a technical solution: a drum screen, including a frame 1, a drum shell 2 is provided on the top of the frame 1, a drum 8 is rotatably provided inside the drum shell 2, a sieve hole 10 is provided on the side wall of the drum 8, a material cleaning component is provided on the top of the drum 8, the material cleaning component includes a fixing rod 15 provided on the inner wall of the drum shell 2, a torsion spring 16 is connected to the fixing rod 15, a driving component for rotating the drum 8 is provided on the frame 1, the driving component includes a motor 5 provided on the frame 1, the output end of the motor 5 is connected to a gear 6, a notch 7 is provided on the drum shell 2, a gear ring 9 is provided on the drum 8, and the gear 6 passes through the notch 7 It is meshed with the ring gear 9 for transmission, and a feed pipe 4 is connected to the right side of the drum shell 2. The top of the feed pipe 4 is connected to the feed hopper 3. The left and right ends of the drum 8 are rotatably connected to the drum shell 2 through drum shaft 1 81 and drum shaft 2 82 respectively. Drum shaft 1 81 and drum shaft 2 82 are fixedly connected to the inner wall of the drum shell 2. Drum shaft 2 82 is a hollow structure, and the left and right ends of drum shaft 2 82 are respectively connected to the drum 8 and the feed pipe 4. The gear 6 is driven to rotate by the motor 5, and the gear 6 is meshed with the ring gear 9 for transmission, thereby driving the drum 8 to rotate. The material is put into the drum 8 through the feed hopper 3 for screening.
[0027] Furthermore, the top of the torsion spring 16 is connected to a torsion spring fixing sleeve 161, which is sleeved on the fixed rod 15. The shape of the screening hole 10 is a vertical bar, and the number of the torsion springs 16 is multiple. The positions of the torsion springs 16 and the screening holes 10 correspond one to one. Through the contact between the torsion springs 16 and the screening holes 10, the material blocked in the screening hole is pushed into the drum 8 to avoid affecting the screening effect.
[0028] Example 2
[0029] On the basis of Example 1, the inner wall of the drum 8 is provided with a material guide plate 17, and the number of the material guide plates 17 is multiple and distributed in a spiral shape inside the drum 8. A waste hole 11 is provided on the left side of the screening hole 10 and is opened on the side wall of the drum 8. A waste port 13 and a discharge port 14 are opened on the frame 1, and the waste port 13 and the discharge port 14 are separated by a block 12. The frame 1 and the drum shell 2 are connected to each other, and the waste port 13 is located directly below the waste hole 11, and the discharge port 14 is located directly below the screening hole 10.
[0030] The guide plate 17 transports the material to be screened inside from right to left along the spiral direction, avoiding accumulation inside the drum 8 and facilitating uniform distribution and screening in the drum 8; finally, the remaining material is transported to the leftmost end and discharged from the waste port 13 below through the waste hole 11, and the screened material is discharged through the discharge port 14. The cross-section of the block 12 is triangular, thereby avoiding mixing; loading, screening and discharging are carried out simultaneously, thereby increasing production efficiency.
[0031] Working principle of the present invention: When the present invention is in use, the material is put into the drum 8 through the feed hopper 3 for screening, the gear 6 is driven to rotate by the motor 5, the gear 6 is meshed with the ring gear 9 for transmission, and then the drum 8 is driven to rotate, and the guide plate 17 conveys the material to be screened inside along the spiral direction from right to left to avoid accumulation inside the drum 8, and the screened material is discharged through the discharge port 14, and finally the remaining material is conveyed to the leftmost end and discharged from the waste port 13 below through the waste hole 11. Through the contact between the torsion spring 16 and the screening hole 10, the material blocked in the screen hole is pushed into the drum 8 to avoid affecting the screening effect.
[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A drum screen, comprising a frame (1), characterized in that: A drum shell (2) is provided on the top of the frame (1), a drum (8) is rotatably provided inside the drum shell (2), a sieving hole (10) is provided on the side wall of the drum (8), a material cleaning assembly is provided on the top of the drum (8), the material cleaning assembly includes a fixing rod (15) provided on the inner wall of the drum shell (2), a torsion spring (16) is connected to the fixing rod (15), and a driving assembly for rotating the drum (8) is provided on the frame (1).
2. A drum screen according to claim 1, characterized in that: The top end of the torsion spring (16) is connected to a torsion spring fixing sleeve (161), and the torsion spring fixing sleeve (161) is sleeved on the fixing rod (15).
3. A drum screen according to claim 2, characterized in that: The shape of the sieve holes (10) is a vertical bar, and the number of the torsion springs (16) is multiple, and the positions of the torsion springs (16) and the sieve holes (10) correspond one to one.
4. The drum screen according to claim 1, characterized in that: The inner wall of the drum (8) is provided with a material guide plate (17), and the number of the material guide plates (17) is multiple and distributed in a spiral shape inside the drum (8).
5. A drum screen according to claim 4, characterized in that: A waste hole (11) is provided on the left side of the screening hole (10) and is opened on the side wall of the drum (8). A waste opening (13) and a discharge opening (14) are opened on the frame (1). The waste opening (13) and the discharge opening (14) are separated by a block (12). The frame (1) and the drum shell (2) are connected to each other. The waste opening (13) is located directly below the waste hole (11), and the discharge opening (14) is located directly below the screening hole (10).
6. The drum screen according to claim 1, characterized in that: A feed pipe (4) is connected to the right side of the drum shell (2), and a feed hopper (3) is connected to the top of the feed pipe (4). The left and right ends of the drum (8) are rotatably connected to the drum shell (2) through a first drum shaft (81) and a second drum shaft (82), respectively. The second drum shaft (82) is a hollow structure, and the left and right ends of the second drum shaft (82) are connected to the drum (8) and the feed pipe (4), respectively.
7. The drum screen according to claim 1, characterized in that: The driving assembly comprises a motor (5) arranged on a frame (1); the output end of the motor (5) is connected to a gear (6); a notch (7) is provided on the drum shell (2); a gear ring (9) is sleeved on the drum (8); and the gear (6) is meshed with the gear ring (9) through the notch (7) for transmission.