A vibrating screen

Abstract

The utility model relates to material screening equipment technical field discloses a vibrating screen, including screen frame skeleton and screen module, the module clamping groove of downward recess and the locking bolt of located module clamping groove side wall are equipped respectively in screen frame skeleton upside and downside, screen module includes main screen and vice screen, main screen and vice screen are installed in module clamping groove inboard through locking bolt respectively, and a plurality of clean net ping ball is arranged between main screen and vice screen, the utility model has the advantages compared with prior art: through the resonance / amplification system that " transmission block - spring - clean net ping ball " is composed, the vertical vibration energy of whole screen machine is effectively converted into the high frequency, high intensity knock of clean net ping ball to main screen, this " active clean net " mechanism is stronger to the peeling capacity of viscous material, main screen and vice screen are independent module, and are fixed through clamping groove and lateral bolt, and the whole screen frame does not need to be disassembled in the dismounting process, greatly simplifies the maintenance process, and the downtime is shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of material screening equipment, specifically to a vibrating screen. Background Technology

[0002] Vibrating screens are widely used material grading equipment in industries such as mining, metallurgy, chemicals, and food. Their core working component is the screen mesh. Most existing vibrating screen meshes are single-layer, integral structures, fixed to the screen box by bolts. This structure has the following significant drawbacks:

[0003] When screening moist or sticky materials, the screen openings are prone to clogging, severely affecting screening efficiency and output. Although some screens are equipped with bouncing balls or ultrasonic cleaning devices, the former has limited cleaning effect, while the latter is costly and complex to maintain. The replacement process for integral screens is cumbersome and time-consuming, affecting the continuity of production.

[0004] Therefore, there is an urgent need for a vibrating screen that can effectively prevent clogging, is easy to replace in parts, and is convenient to assemble and disassemble. Utility Model Content

[0005] I. Technical problems to be solved

[0006] The technical problem this invention aims to solve is that some screens are equipped with bouncing balls or ultrasonic cleaning devices, but the former has limited cleaning effect, while the latter is costly and complex to maintain. The replacement process for integrated screens is cumbersome and time-consuming.

[0007] II. Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a vibrating screen, including a screen frame skeleton and a screen module;

[0009] The upper and lower sides of the screen frame skeleton are respectively provided with downwardly recessed module slots and locking bolts located on the sidewalls of the module slots;

[0010] The screen module includes a main screen and a secondary screen;

[0011] The main screen and the auxiliary screen are respectively installed inside the module slot by locking bolts, and multiple cleaning balls are provided between the main screen and the auxiliary screen.

[0012] As an improvement, multiple sets of transmission blocks are installed on the secondary screen, which intermittently contact the cleaning ball. A positioning frame is fitted on the outside of the transmission block, and the positioning frame passes through the secondary screen and is fixedly connected to the secondary screen.

[0013] As an improvement, a spring is installed on the upper side of the positioning frame, the spring is sleeved on the outside of the transmission block, and the top is fixedly connected to the net clearing ball.

[0014] As an improvement, the aperture of the main screen is larger than that of the secondary screen.

[0015] As an improvement, the screen frame skeleton has inclined surfaces on both sides and is equipped with positioning mounting strips. The positioning mounting strips are fixedly connected to the screen box by multiple sets of bolts, so that the vibrating screen is installed at an angle inside the screen box.

[0016] As an improvement, a discharge port is provided on the lower side wall of the screen frame skeleton, and the discharge port is located between the secondary screen and the main screen.

[0017] III. Beneficial Effects

[0018] The advantages of this utility model compared with the prior art are as follows:

[0019] Through a resonance / amplification system consisting of a transmission block, spring, and screen-cleaning bouncing ball, the vertical vibration energy of the entire screening machine is effectively converted into high-frequency, high-intensity impacts of the screen-cleaning bouncing ball on the main screen. The screen-cleaning effect is far superior to that of traditional passively bouncing bouncing balls. This "active screen-cleaning" mechanism has a stronger ability to peel off sticky materials.

[0020] The main and auxiliary screens are independent modules, fixed by slots and lateral bolts. The disassembly and assembly process does not require disassembling the entire screen frame, which greatly simplifies the maintenance process and shortens downtime. Attached Figure Description

[0021] Figure 1 This is an exploded view of a vibrating screen according to this utility model.

[0022] Figure 2 This is a schematic diagram of the upper structure of a vibrating screen according to this utility model.

[0023] Figure 3 This is a schematic diagram of the bottom structure of a vibrating screen according to this utility model.

[0024] Figure 4 This is a schematic diagram of the cleaning ball installation structure of a vibrating screen according to the present invention.

[0025] As shown in the figure: 1. Screen frame skeleton; 2. Main screen; 3. Secondary screen; 4. Module slot; 5. Discharge port; 6. Positioning mounting strip; 7. Transmission block; 8. Positioning frame; 9. Screen cleaning ball; 10. Spring; 11. Locking bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] As attached Figure 2 As shown, a vibrating screen includes a screen frame skeleton 1 and a screen module; the screen frame skeleton 1 has inclined surfaces on opposite sides and is equipped with positioning mounting strips 6. The positioning mounting strips 6 are fixedly connected to the screen box by multiple sets of bolts, so that the vibrating screen is installed at an incline inside the screen box. This incline installation structure not only facilitates the material to flow to a lower position by gravity and vibration to achieve grading and screening, but also provides a basis for subsequent automatic impurity removal.

[0028] As attached Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the screen module includes a main screen 2 and a secondary screen 3. The aperture of the main screen 2 is larger than that of the secondary screen 3. A discharge port 5 is provided on the lower side wall of the screen frame skeleton 1. The discharge port 5 is located between the secondary screen 3 and the main screen 2. The core function of the discharge port 5 is to serve as a normally open discharge channel, which can automatically and continuously discharge large pieces, sticky clumps, and foreign objects that are shaken off from the main screen 2 during the screen cleaning process, as well as foreign objects that accidentally enter the interlayer, out of the screen machine by means of the gravity and vibration effect of the screen's tilt angle.

[0029] As attached Figure 1 and attached Figure 4 As shown, the upper and lower sides of the screen frame skeleton 1 are respectively provided with downwardly recessed module slots 4 and locking bolts 11 located on the side wall of the module slots 4. The main screen 2 and the secondary screen 3 are respectively installed inside the module slots 4 by locking bolts 11. Multiple cleaning bouncing balls 9 are arranged between the main screen 2 and the secondary screen 3. Multiple sets of transmission blocks 7 that intermittently contact the cleaning bouncing balls 9 are installed on the secondary screen 3. A positioning frame 8 is sleeved on the outside of the transmission block 7. The positioning frame 8 passes through the secondary screen 3 and is fixedly connected to the secondary screen 3. A spring 10 is installed on the upper side of the positioning frame 8. The spring 10 is sleeved on the outside of the transmission block 7 and its top is fixedly connected to the cleaning bouncing balls 9.

[0030] The specific usage method is as follows:

[0031] Align the main screen 2 with the module slot 4 on the upper side of the screen frame skeleton 1 and insert it. After the cleaning ball 9, positioning frame 8, transmission block 7 and spring 10 are installed on the auxiliary screen 3, align the auxiliary screen 3 with the module slot 4 on the lower side and insert it. Screw the locking bolt 11 into the corresponding bolt holes until the main screen 2 and auxiliary screen 3 are firmly pressed into the slots. Use bolts to tilt and install the entire vibrating screen at the predetermined position in the screen box using the positioning mounting strip 6.

[0032] When the main screen 2 is worn and needs to be replaced, or when a screen with a different aperture needs to be replaced, simply unscrew the locking bolt 11 on the side to remove the old screen module from the module slot 4 and replace it with a new module. The entire process does not require disassembling the screen frame skeleton 1 and the positioning mounting strip 6, achieving rapid maintenance and greatly reducing downtime.

[0033] When the vibrating screen is started, the vibration of the screen is transmitted through the screen frame skeleton 1 to the auxiliary screen 3 and its positioning frame 8 and transmission block 7. Under the action of inertia, the transmission block 7 begins to move up and down, compressing or releasing the spring 10, converting the overall vibration energy of the screen into the high-frequency reciprocating motion of the spring 10. The spring 10 drives the screen cleaning ball 9 to continuously and forcefully impact the back of the main screen 2, shaking off the material blocking the screen holes, thus achieving efficient and active screen cleaning.

[0034] Because the screen is installed at an angle, these debris will slide down the surface of the secondary screen 3 under the action of vibration and gravity, and will eventually be automatically discharged outside the screen machine through the upper side of the screen frame skeleton 1 and the discharge port 5, thus avoiding accumulation in the interlayer.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A vibrating screen, characterized in that: Includes a screen frame skeleton (1) and a screen module; The screen frame skeleton (1) is provided with a downwardly recessed module slot (4) on the upper and lower sides and a locking bolt (11) located on the side wall of the module slot (4); The screen module includes a main screen (2) and a secondary screen (3); The main screen (2) and the secondary screen (3) are respectively installed inside the module slot (4) by locking bolts (11), and a plurality of cleaning bouncing balls (9) are provided between the main screen (2) and the secondary screen (3).

2. The vibrating screen according to claim 1, characterized in that: Multiple sets of transmission blocks (7) are installed on the secondary screen (3) and intermittently contact the cleaning ball (9). A positioning frame (8) is sleeved on the outside of the transmission block (7). The positioning frame (8) passes through the secondary screen (3) and is fixedly connected to the secondary screen (3).

3. A vibrating screen according to claim 2, characterized in that: A spring (10) is installed on the upper side of the positioning frame (8). The spring (10) is sleeved on the outside of the transmission block (7) and its top is fixedly connected to the net clearing ball (9).

4. A vibrating screen according to claim 1, characterized in that: The aperture of the main screen (2) is larger than that of the secondary screen (3).

5. A vibrating screen according to claim 1, characterized in that: The screen frame skeleton (1) has inclined surfaces on both sides and is equipped with positioning mounting strips (6). The positioning mounting strips (6) are fixedly connected to the screen box by multiple sets of bolts, so that the vibrating screen is installed at an angle inside the screen box.

6. A vibrating screen according to claim 5, characterized in that: The lower side wall of the screen frame (1) is provided with a discharge port (5), which is located between the secondary screen (3) and the main screen (2).

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