Energy-saving high-frequency vibrating screen with multiple frequencies

Abstract

The utility model belongs to the technical field of vibrating screen, disclose a kind of complex frequency energy-saving high-frequency vibrating screen, including screen frame, screen and several vibrating beams, the both ends of each vibrating beam are connected with screen frame through shear spring, and the screen is fixed on vibrating beam, and high-frequency vibration source for driving screen to vibrate in vertical direction is equipped on vibrating beam, the bottom of screen frame is equipped with spring support seat, and the bottom of spring support seat is equipped with rubber support spring, mounting bracket is equipped on screen frame, and the vibrating motor with vibrating direction being inclined forward is mounted in mounting bracket, the bottom of rubber support spring is fixed on rack. The utility model couples linear motion of complete machine with screen vibration alone, realizes the purpose of large processing capacity, high screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and in particular to a multi-frequency energy-saving high-frequency vibrating screen. Background Technology

[0002] A vibrating screen is an industrial device that separates, screens, or grades materials based on the principle of vibration. Existing types include linear screens, high-frequency screens, tension screens, and square gyratory screens, but all are single-direction vibrating screens. Single-direction vibration causes materials to move only along a fixed trajectory (such as unidirectional throwing or sliding), preventing multi-dimensional diffusion. This reduces screen surface utilization, causes large particles to accumulate at the feed end of the screen, and decreases the pass-through rate of fine powder. Furthermore, the single vibration direction makes it difficult to fully loosen the material layer, and particle compression leads to uneven pass-through probability. Therefore, we designed a multi-frequency energy-saving high-frequency vibrating screen. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a multi-frequency energy-saving high-frequency vibrating screen, which couples the linear motion of the whole machine with the individual vibration of the screen to achieve the purpose of large processing capacity and high screening efficiency.

[0004] The technical solution adopted by this utility model is: a multi-frequency energy-saving high-frequency vibrating screen, including a screen frame, a screen mesh and several vibrating beams. The two ends of each vibrating beam are connected to the screen frame via shear springs, and the screen mesh is fixed on the vibrating beam. The vibrating beam is provided with a high-frequency vibration source that drives the screen mesh to vibrate vertically. The bottom of the screen frame is provided with a spring support seat, and a rubber support spring is installed at the bottom of the spring support seat. The screen frame is provided with a mounting frame, and a vibrating motor with the vibration direction inclined forward is installed on the mounting frame. The bottom of the rubber support spring is fixed on the frame.

[0005] Preferably, it also includes a feeding funnel, and the bottom of the feeding funnel is provided with an elongated discharge port, and the bottom of the feeding funnel is provided with an opening adjustment mechanism for adjusting the size of the discharge port.

[0006] Preferably, the opening adjustment mechanism includes two closed plates arranged in opposite directions on both sides of the discharge port. The two ends of the closed plates are provided with rotating shafts. The rotating shafts are rotatably mounted on the outer wall of the feed funnel via bearings. Each rotating shaft has a gear at its end, and the gears on the two closed plates mesh with each other. The feed funnel is provided with a drive mechanism that drives one of the rotating shafts to rotate.

[0007] Preferably, the drive mechanism is a geared motor.

[0008] Preferably, the screen frame is provided with a buffer baffle at the material drop point of the screen mesh.

[0009] Preferably, the surface of the buffer baffle is provided with a polyurethane buffer plate.

[0010] The beneficial effects of this utility model are as follows: 1. In this utility model, the vibrating motor is the vibration source, driving the screen body to perform a 45-degree projectile linear motion trajectory. Several high-frequency vibration sources are used at the bottom of the screen to drive the screen to vibrate at high frequency, enabling the screen to achieve secondary vibration. The high-frequency vibration device installed under the screen can clean the material blocked in the mesh, ensuring that the screen always maintains a high opening rate. At the same time, the high-frequency vibration causes the material to quickly stratify, improving the overall screening efficiency of the screening machine. The combined motion of the dual vibration sources allows the material to pass through the screen surface quickly and maintains a good tumbling effect. The high-frequency vibration of the screen also eliminates the phenomenon of screen blockage, with a blockage rate of zero, improving the overall performance of the equipment. In this utility model, the vibration source is installed on the vibrating beam at the bottom of the screen, driving only the screen and not the entire screen box, reducing the required excitation force and thus achieving energy saving.

[0011] 1. In this utility model, by setting Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0013] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the installation of the vibration motor in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the feeding funnel in Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of gear meshing in Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Screen frame; 2. Screen mesh; 3. Vibrating beam; 4. Shear spring; 5. High-frequency vibration source; 6. Spring support seat; 7. Rubber support spring; 8. Mounting frame; 9. Vibrating motor; 10. Frame; 11. Feed hopper; 12. Discharge port; 13. Opening adjustment mechanism; 14. Closing plate; 15. Rotating shaft; 16. Gear; 17. Buffer baffle; 18. Polyurethane buffer plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0016] Example 1, such as Figure 1-2 As shown in the figure, this embodiment provides a multi-frequency energy-saving high-frequency vibrating screen, including a screen frame 1, a screen mesh 2 and several vibrating beams 3. Each vibrating beam 3 is connected to the screen frame 1 at both ends via shear springs 4, and the screen mesh 2 is fixed on the vibrating beam 3. The feature is that: the vibrating beam 3 is provided with a high-frequency vibration source 5 that drives the screen mesh 2 to vibrate vertically; the bottom of the screen frame 1 is provided with a spring support seat 6, and the bottom of the spring support seat 6 is installed with a rubber support spring 7; the screen frame 1 is provided with a mounting frame 8, and the mounting frame 8 is used to install a vibrating motor 9 with the vibration direction inclined forward; the bottom of the rubber support spring 7 is fixed on the frame 10. In this invention, the vibrating motor 9 serves as the vibration source, driving the screen body in a 45-degree projectile linear motion trajectory. Several high-frequency vibration sources 5 are used at the lower part of the screen 2, driving the screen 2 to vibrate at high frequency, thus achieving secondary vibration. The high-frequency vibration device below the screen 2 can clear material clogging the mesh, ensuring the screen 2 maintains a high open area ratio. Simultaneously, the high-frequency vibration causes rapid material stratification, improving the overall screening efficiency of the screening machine. The combined motion of the dual vibration sources allows material to pass quickly through the screen surface and maintains good tumbling. The high-frequency vibration of the screen 2 also eliminates clogging, achieving a zero clogging rate and improving the overall performance of the equipment. In this invention, the vibration source is installed on the vibrating beam 3 at the bottom of the screen 2, driving only the screen 2 rather than the entire screen box, reducing the required excitation force and thus achieving energy saving.

[0017] This invention couples the 45-degree linear motion of the whole machine with the individual vibration of the screen to achieve the goal of large processing capacity and high screening efficiency.

[0018] The vibrating motor used in this invention is a variable frequency motor, which can adjust the vibration frequency of the equipment in real time. The screen vibration source uses a high-frequency vibrating motor or a hydraulic vibrating motor, matching the optimal vibration parameters for different material conditions. The entire machine can be installed at an angle of 0-20° to adapt to different application conditions. The combined motion of the dual vibration sources allows materials to pass quickly through the screen surface and maintains good tumbling effect. The high-frequency vibration of the screen also eliminates screen clogging, achieving a zero clogging rate and improving the overall performance of the equipment. During the operation of this multi-frequency energy-saving high-frequency vibrating screen, the high-frequency vibration source of the screen and the main vibrating motor work continuously, providing power for material conveying and screening. The vibration frequency can be adjusted in real time, enabling the equipment to achieve optimal amplitude, frequency, and other vibration parameters for different material conditions, achieving the best fine material processing effect.

[0019] Example 2, as follows Figure 3-5 As shown, the technical difference between this embodiment and Embodiment 1 lies in that it further includes a feeding funnel 11, and the bottom of the feeding funnel 11 is provided with an elongated discharge port 12. The bottom of the feeding funnel 11 is provided with an opening adjustment mechanism 13 for adjusting the size of the discharge port 12. This allows for feeding by setting a specific feeding funnel, and the elongated discharge port has a large discharge area, avoiding localized misalignment. Furthermore, the size of the discharge port 12 can be adjusted via the opening adjustment mechanism 13, thus meeting different screening requirements and providing good flexibility.

[0020] The opening adjustment mechanism 13 includes two opposing closing plates 14 disposed on both sides of the discharge port 12. Each closing plate 14 has a rotating shaft 15 at both ends. The rotating shaft 15 is rotatably mounted on the outer wall of the feed funnel 11 via bearings. Each rotating shaft 15 has a gear 16 at its end, and the gears on the two closing plates 14 mesh with each other. The feed funnel 11 is equipped with a drive mechanism that drives one of the rotating shafts 15 to rotate. Because the rotating shafts on the two closing plates are meshed by gears, the two closing plates open. By limiting the rotation angle of the rotating shaft, the opening angle is limited. The drive mechanism is a geared motor, which offers the advantage of convenient control and adjustment.

[0021] The screen frame 1 is equipped with a buffer baffle 17 at the material drop point of the screen mesh, which buffers the material drop. The surface of the buffer baffle 17 is provided with a polyurethane buffer plate 18, which protects the buffer baffle and also buffers the material drop.

[0022] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0023] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A multi-frequency energy-saving high-frequency vibrating screen, comprising a screen frame (1), a screen mesh (2), and a plurality of vibrating beams (3), wherein both ends of each vibrating beam (3) are connected to the screen frame (1) via shear springs (4), and the screen mesh (2) is fixed on the vibrating beam (3), characterized in that: The vibrating beam (3) is equipped with a high-frequency vibration source (5) that drives the screen (2) to vibrate vertically. The bottom of the screen frame (1) is equipped with a spring support seat (6), and the bottom of the spring support seat (6) is equipped with a rubber support spring (7). The screen frame (1) is equipped with a mounting frame (8), and the mounting frame (8) is equipped with a vibration motor (9) whose vibration direction is inclined forward. The bottom of the rubber support spring (7) is fixed on the frame (10).

2. The multi-frequency energy-saving high-frequency vibrating screen according to claim 1, characterized in that: It also includes a feeding funnel (11), and the bottom of the feeding funnel (11) is provided with a long strip-shaped discharge port (12), and the bottom of the feeding funnel (11) is provided with an opening adjustment mechanism (13) for adjusting the size of the discharge port (12).

3. The multi-frequency energy-saving high-frequency vibrating screen according to claim 2, characterized in that: The opening adjustment mechanism (13) includes a closed plate (14) arranged in opposite directions on both sides of the discharge port (12). The two ends of the closed plate (14) are provided with rotating shafts (15). The rotating shafts (15) are rotatably mounted on the outer wall of the feed funnel (11) via bearings. Each rotating shaft (15) is provided with a gear (16) at its shaft end, and the gears on the two closed plates (14) mesh with each other. The feed funnel (11) is provided with a drive mechanism that drives one of the rotating shafts (15) to rotate.

4. The multi-frequency energy-saving high-frequency vibrating screen according to claim 3, characterized in that: The drive mechanism is a geared motor.

5. The multi-frequency energy-saving high-frequency vibrating screen according to claim 2, characterized in that: The screen frame (1) is provided with a buffer baffle (17) at the material drop point of the screen.

6. The multi-frequency energy-saving high-frequency vibrating screen according to claim 5, characterized in that: The surface of the buffer baffle (17) is provided with a polyurethane buffer plate (18).

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