Circular vibrating screen mesh mounting structure and circular vibrating screen

Abstract

The utility model discloses a circular vibrating screen mesh mounting structure and a circular vibrating screen, which belong to the technical field of screening equipment, and comprise a bottom frame, stand columns are arranged at four corners of the bottom frame, the tops of the stand columns are hinged to screen box side plates through spring seats, opposite base cylinders are arranged at the centers of two side plates of a screen box, and cylinder bodies of the base cylinders on the two sides are hinged to the heads of a plurality of pairs of supporting arms. The tail portions of the same pair of supporting arms are connected with the two sides of the screen plate assembly, the tail end of the base barrel is in threaded connection with a fastening ring, the fastening ring can abut against the supporting arms to a screen box side plate after being screwed, a barrel cavity of the base barrel is hinged to an eccentric block shaft rod, and an eccentric block is connected with a driving mechanism. According to the round vibrating screen, the inclination angle of each layer of screen plate assembly can be adjusted by rotating the supporting arms on the two sides, so that the screening requirements of different materials are met, after the inclination angle is adjusted, rapid fixing can be conducted by screwing the fastening rings, complex operation is not needed, and the round vibrating screen has the advantages of being convenient to use and efficient.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, specifically to a circular vibrating screen mesh installation structure and a circular vibrating screen. Background Technology

[0002] A circular vibrating screen is a high-efficiency screening device widely used in industrial production. Its working principle is based on the excitation force generated by a motor driving the screen surface to vibrate in a circular or near-elliptical trajectory, thereby achieving material grading, screening, and impurity removal. The equipment mainly consists of a screen box, drive motor, and screen mesh. The screen box adopts a multi-layer design, and different mesh sizes can be configured according to requirements to achieve multi-stage precise screening of granular and powder materials. Circular vibrating screens are widely used in mining, metallurgy, chemical, building materials, and food processing, and are particularly suitable for handling high-precision or high-volume screening tasks. During the screening process, the inclination angle of the screen mesh has a significant impact on the screening effect and operating performance. Increasing the screen mesh inclination angle allows for faster material flow and increased throughput, but simultaneously reduces screening time, potentially affecting screening accuracy and accelerating screen wear. Conversely, a smaller angle results in longer material residence time and more thorough screening, but reduces throughput. Traditional circular vibrating screens typically have a fixed screen angle, which is difficult to adjust and not conducive to screening different types of materials with different requirements. In addition, the screens are mostly designed as a single piece, so when part of the screen surface is worn, the entire screen needs to be replaced, resulting in unnecessary waste. A new type of equipment is needed to solve the above problems. Utility Model Content

[0003] To solve the above problems, this utility model proposes a circular vibrating screen installation structure and a circular vibrating screen, including a base frame with columns at the four corners of the base frame. The top of the columns is hinged to the side plate of the screen box via spring seats. The center of the two side plates of the screen box is provided with a base cylinder facing each other. The cylinder body of the two sides of the base cylinder is hinged to the head of several pairs of support arms. The tail of the same pair of support arms is connected to both sides of the screen plate assembly. The end of the base cylinder is threaded with a fastening ring. After the fastening ring is tightened, it can press each support arm against the side plate of the screen box. The cylinder cavity of the base cylinder is hinged to an eccentric block shaft. The eccentric block is connected to a drive mechanism.

[0004] Furthermore, the screen plate assembly includes a grid frame, with the two sides of the grid frame connected to the support arm tail mounting plate by bolts. Each grid of the grid frame is embedded with a screen plate, and the mesh size of the screen plates in each layer of the screen plate assembly decreases from top to bottom.

[0005] Furthermore, the top surface of the two sides of the grid frame is attached to the bottom surface of the side guard plate, and several vertical countersunk holes are opened on the inner slope of the side guard plate. After the bolts pass through the countersunk holes, they are threaded to connect the grid frame and the threaded holes on the mounting plate.

[0006] Furthermore, the drive mechanism includes a drive motor, the output end of the drive motor's driving wheel is connected to the driven wheel via a transmission belt, the driven wheel's shaft is connected to the center of one side of the eccentric block, and the ends of the shafts of the two eccentric blocks are connected to both ends of the drive shaft via universal joints.

[0007] Furthermore, a rotating handle is provided on one side of the fastening ring, and a scale is printed on the ring body, with the scale corresponding to the pointers marked on each support arm.

[0008] The beneficial effects of this utility model are as follows: This utility model allows adjustment of the tilt angle of each layer of screen plate components by rotating the two side support arms, thereby adapting to the screening needs of different materials. During tilt angle adjustment, the scale on the fastening ring provides a reference for the operator. After the tilt angle is adjusted, it can be quickly fixed by screwing on the fastening ring, requiring no complicated operations and featuring convenience and efficiency. The screen plate components of the device adopt a modular design, allowing for free replacement of embedded screen plates, improving applicability while reducing equipment maintenance costs. Attached Figure Description

[0009] Figure 1 This is a front view sectional view of the present invention;

[0010] Figure 2 This is a side view of the structure of this utility model;

[0011] Figure 3 This is a side view of the structural cross-section of the present invention;

[0012] Figure 4 This is a top view of the structure of this utility model.

[0013] The reference numerals in the attached drawings are explained as follows: 1. Base frame; 101. Base cylinder; 2. Column; 3. Spring seat; 4. Screen box; 5. Support arm; 501. Mounting plate; 6. Fastening ring; 601. Rotating handle; 7. Eccentric block; 8. Grid frame; 9. Screen plate; 10. Side guard plate; 1001. Countersunk hole; 11. Drive motor; 12. Transmission belt; 13. Driven pulley; 14. Universal joint; 15. Drive shaft. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] like Figures 1 to 4 As shown, a circular vibrating screen installation structure and a circular vibrating screen include a base frame 1, with columns 2 at the four corners of the base frame 1. The tops of the columns 2 are hinged to the side plates of the screen box 4 via spring seats 3. The center of each side plate of the screen box 4 has a base cylinder 101 facing each other. Several pairs of support arms 5 are hinged to the cylinder bodies of the two base cylinders 101. The tails of the same pair of support arms 5 have mounting plates 501. The mounting plates 501 are attached to the bottom surfaces of the side frames of the grid frame 8 in the screen plate assembly. The top surfaces of the side frames of the grid frame 8 are attached to the bottom surfaces of the side guard plates 10. Several vertical countersunk holes 1001 are opened on the inner slope of the side guard plates 10. Bolts pass through the countersunk holes 1001 and are threadedly connected to the grid frame 8 and the threaded holes on the mounting plates 501. Each grid of the grid frame 8 contains a screen plate 9, and the mesh size of the screen plates 9 in each layer of the screen plate assembly decreases from top to bottom.

[0018] In this embodiment, a fastening ring 6 is threaded to the end of the base cylinder 101. A rotating handle 601 is provided on one side of the fastening ring 6. A scale is printed on the ring body of the fastening ring 6, and the scale corresponds to the pointer marked on each support arm 5. After the fastening ring 6 is tightened, each support arm 5 can be pressed against the side plate of the screen box 4. The cylinder cavity of the base cylinder 101 is hinged to the shaft of the eccentric block 7, and the eccentric block 7 is connected to the drive mechanism. The drive mechanism includes a drive motor 11. The drive wheel at the output end of the drive motor 11 is connected to the driven wheel 13 through a transmission belt 12. The shaft of the driven wheel 13 is connected to the center of one side of the eccentric block 7, and the ends of the shafts of the two eccentric blocks 7 are connected to the two ends of the drive shaft 15 through universal joints 14.

[0019] The working principle of this utility model is as follows:

[0020] When adjusting the tilt angle of each screen plate assembly, loosen the fastening ring 6 until the zero mark on the dial faces upward. Rotate the support arms 5 on both sides, and with the assistance of the pointers on the support arms 5, adjust each support arm 5 to the target angle. Then tighten the fastening ring 6 to fix the screen plate assembly. Inspect each screen plate 9 embedded in the grid frame 8, and remove any worn parts for replacement. When it is necessary to change the screening mesh of this layer of screen plate assembly, all screen plates 9 on this layer of grid frame 8 can be replaced. When the circular vibrating screen is working, start the drive motor 11 to drive the driven wheel 13 to rotate. The driven wheel 13 drives the eccentric block 7 to rotate at high speed on both sides of the screen box 4. The centrifugal force generated by the eccentric block 7 causes the screen box 4 to vibrate, thereby driving the material falling on the screen plate assembly for screening.

[0021] This invention allows for adjustment of the tilt angle of each layer of screen plate assembly by rotating the two side support arms 5, thereby adapting to the screening requirements of different materials. After the tilt angle is adjusted, it can be quickly fixed by screwing on the fastening ring 6 without complicated operation, which is convenient and efficient. The screen plate assembly of the device adopts a modular design, and the embedded screen plate 9 can be freely replaced, which not only improves the applicability of the equipment, but also reduces the maintenance cost.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A circular vibrating screen mesh installation structure and a circular vibrating screen, comprising a bottom frame (1), characterized in that: The bottom frame (1) has four corner columns (2). The top of the column (2) is hinged to the side plate of the screen box (4) through the spring seat (3). The center of the two side plates of the screen box (4) has a base cylinder (101) facing each other. The bodies of the two base cylinders (101) are hinged to the heads of several pairs of support arms (5). The tails of the same pair of support arms (5) are connected to the two sides of the screen plate assembly. The end of the base cylinder (101) is threaded to a fastening ring (6). After the fastening ring (6) is tightened, it can press each support arm (5) against the side plate of the screen box (4). The cylinder cavity of the base cylinder (101) is hinged to the shaft of the eccentric block (7). The eccentric block (7) is connected to the drive mechanism.

2. The screen mounting structure and the circular vibrating screen according to claim 1, characterized in that: The sieve plate assembly includes a grid frame (8), and the two sides of the grid frame (8) are connected to the support arm (5) and the tail mounting plate (501) by bolts. Each grid of the grid frame (8) is embedded with a sieve plate (9), and the mesh size of the sieve plate (9) in each layer of the sieve plate assembly decreases from top to bottom.

3. The screen mounting structure and the circular vibrating screen according to claim 2, characterized in that: The top surface of the two sides of the grid frame (8) is attached to the bottom surface of the side guard plate (10). Several vertical countersunk holes (1001) are opened on the inner slope of the side guard plate (10). After the bolt passes through the countersunk holes (1001), it is threaded to connect the grid frame (8) and the threaded hole on the mounting plate (501).

4. The screen mounting structure and the circular vibrating screen according to claim 1, characterized in that: The drive mechanism includes a drive motor (11). The drive motor (11) output end drive wheel is connected to the driven wheel (13) via a transmission belt (12). The driven wheel (13) shaft is connected to the center of one side eccentric block (7). The ends of the shafts of the two eccentric blocks (7) are connected to the two ends of the transmission shaft (15) via universal joints (14).

5. The screen mounting structure and the circular vibrating screen according to claim 1, characterized in that: The fastening ring (6) has a rotating handle (601) on one side, and the fastening ring (6) has a scale printed on its body, which corresponds to the pointer marked on each support arm (5).

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