Large equal-thickness linear vibrating screen

Abstract

The utility model provides a large equal-thickness linear vibrating screen, and relates to the technical field of vibrating screens. A vibration excitation assembly; the vibration excitation assembly comprises a bidirectional motor fixedly connected to the bottom end of the screen box, the driving end of the bidirectional motor is fixedly connected with an eccentric wheel, the bottom end in the screen box is movably connected with a flow guide plate, and the side, away from the flow guide plate, in the screen box is movably connected with a screen plate. An elastic component; the elastic assembly comprises connecting blocks fixedly connected to the outer sides of the flow guide plate and the screen plate, the close ends of the two connecting blocks are fixedly connected with first arc-shaped spring pieces, and the top end in the screen box is fixedly connected with second arc-shaped spring pieces. By means of the design, the screen plate of the vibrating screen can stably vibrate under the action of exciting force, meanwhile, the arc-shaped spring pieces and a symmetrical structure provide uniform elastic support, excessive transverse swing of the screen plate is prevented, fatigue damage caused by transverse swing is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and in particular to a large-scale linear vibrating screen with uniform thickness. Background Technology

[0002] In industrial production, vibrating screens are key pieces of equipment specifically designed for material screening. These devices are widely used in metallurgy, mining, coal mining, and many other industries.

[0003] To address the fatigue damage caused by long-term vibration in traditional vibrating screens, the vibration is transmitted to the connecting plate, then stably to the fixed plate, and finally to the compression spring. However, the hollow spring design results in insufficient lateral stiffness, making the vibrating screen prone to lateral swaying. Long-term lateral swaying can lead to fatigue damage to connecting components such as the connecting plate, fixed plate, and compression spring, increasing equipment maintenance costs.

[0004] Therefore, this utility model provides a large-scale linear vibrating screen with uniform thickness. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a large-scale linear vibrating screen with uniform thickness.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a large-scale uniform thickness linear vibrating screen, comprising;

[0007] Screen box;

[0008] Vibration assembly; the vibration assembly includes a bidirectional motor fixedly connected to the bottom of the screen box, an eccentric wheel fixedly connected to the drive end of the bidirectional motor, a guide plate movably connected to the bottom of the screen box, and a screen plate movably connected to the side of the screen box away from the guide plate.

[0009] The elastic component includes connecting blocks fixedly connected to the outside of the guide plate and the screen plate, a first arc-shaped spring sheet fixedly connected to one end of the two connecting blocks, and a second arc-shaped spring sheet fixedly connected to the top of the inside of the screen box.

[0010] The technical effects of adopting the above technical solution are as follows: by using the first arc-shaped spring plate and the second arc-shaped spring plate, the elastic component of this vibrating screen has better lateral stiffness, effectively reducing the lateral sway of the screen box, thereby extending the service life of the connecting parts, reducing maintenance costs, and enabling the vibrating screen to generate uniform linear vibration, making the screening of materials more flexible and adapting to the screening needs of different materials.

[0011] In a preferred embodiment, a baffle is fixedly connected to the inside of the screen box on the side near the guide plate.

[0012] The technical effect of adopting the above technical solution is that the baffle can effectively prevent the material from overflowing out of the screen box during the screening process, thus ensuring the accuracy of screening.

[0013] In a preferred embodiment, a connecting rod is rotatably connected to the outer side of the eccentric wheel, and a rotating shaft seat is fixedly connected to the end of the connecting rod away from the eccentric wheel.

[0014] The technical effect of adopting the above technical solution is that the power of the bidirectional motor can be transmitted to the guide plate.

[0015] In a preferred embodiment, the end of the second arc-shaped spring sheet away from the screen box is fixedly connected to the screen plate.

[0016] The technical effect of adopting the above technical solution is that the connection method of the second arc-shaped spring sheet enables the screen plate to obtain more stable support during vibration, thereby improving screening efficiency and screening accuracy.

[0017] In a preferred embodiment, the arc shapes of the first and second arc-shaped spring sheets are symmetrically designed.

[0018] The technical effect of adopting the above technical solution is that the symmetrical design of the first arc-shaped spring plate and the second arc-shaped spring plate can ensure that the vibration of the vibrating screen is more balanced during operation and reduce the wear of the screen box caused by uneven vibration.

[0019] In a preferred embodiment, the top end of the rotating shaft seat is fixedly connected to the bottom end of the guide plate.

[0020] The technical effect of adopting the above technical solution is that when the vibrating screen is working, the guide plate can vibrate synchronously with the screen plate, thereby effectively guiding the flow direction of the material and ensuring the uniform distribution of the material on the screen surface.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] This invention utilizes a bidirectional motor to drive an eccentric wheel to rotate at high speed. The eccentric mass of the eccentric wheel generates centrifugal force, which in turn generates excitation force. This excitation force is transmitted to the rotating shaft seat via a connecting rod, and then to the screen box via the rotating shaft seat. This drives the screen plate inside the screen box to vibrate linearly, thus realizing the material screening process. The elastic component provides elastic support to the screen plate through the coordinated design of the arc-shaped spring sheet and the symmetrical structure. This design allows the screen plate of the vibrating screen to vibrate stably under the action of excitation force. At the same time, the arc-shaped spring sheet and the symmetrical structure provide uniform elastic support, preventing excessive lateral swaying of the screen plate, reducing fatigue damage caused by lateral swaying, and extending the service life of the equipment. Attached Figure Description

[0023] Figure 1 A perspective view of a large-scale linear vibrating screen with uniform thickness provided by this utility model;

[0024] Figure 2 A schematic diagram of the internal structure of the screen box of a large uniform thickness linear vibrating screen provided by this utility model;

[0025] Figure 3 A schematic diagram of the excitation assembly structure of a large-scale linear vibrating screen with uniform thickness provided by this utility model;

[0026] Figure 4 for Figure 2 Enlarged view of point A in the image.

[0027] Legend:

[0028] 1. Screen box;

[0029] 2. Vibration assembly; 21. Bidirectional motor; 22. Eccentric wheel; 23. Connecting rod; 24. Shaft seat; 25. Guide plate; 26. Screen plate;

[0030] 3. Elastic component; 31. Connecting block; 32. First arc-shaped spring sheet; 33. Second arc-shaped spring sheet; 34. Baffle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a large-scale uniform thickness linear vibrating screen, comprising;

[0033] Screen box 1;

[0034] Vibration assembly 2; Vibration assembly 2 includes a bidirectional motor 21 fixedly connected to the bottom of the screen box 1. An eccentric wheel 22 is fixedly connected to the drive end of the bidirectional motor 21. A connecting rod 23 is rotatably connected to the outer side of the eccentric wheel 22. A rotating shaft seat 24 is fixedly connected to the end of the connecting rod 23 away from the eccentric wheel 22. A guide plate 25 is movably connected to the bottom of the screen box 1. The top of the rotating shaft seat 24 is fixedly connected to the bottom of the guide plate 25. A screen plate 26 is movably connected to the side of the screen box 1 away from the guide plate 25.

[0035] The screen box 1, as the main load-bearing structure of the vibrating screen, not only bears the important responsibility of supporting and fixing all other related components of the vibrating screen, but also serves as the main container in the material screening process. The bidirectional motor 21, as the core component of the excitation assembly 2, generates a powerful excitation force through its high-speed rotation. The eccentric wheel 22, as the output component of the bidirectional motor 21, further converts the centrifugal force generated by its eccentric mass into excitation force, providing power support for the screening process. The connecting rod 23 is responsible for transmitting the excitation force, ensuring that the screen surface can vibrate linearly. The rotating shaft seat 24 fixes one end of the connecting rod 23 and effectively transmits the excitation force to the screen box 1. The guide plate 25 guides the screened material to flow along a predetermined path, further improving the efficiency and quality of the screening process by optimizing the flow direction and speed of the material. The screen plate 26 is the part that directly contacts the material during the screening process and is responsible for grading the material.

[0036] Elastic component 3; Elastic component 3 includes connecting blocks 31 fixedly connected to the outside of the guide plate 25 and the screen plate 26. A first arc-shaped spring sheet 32 ​​is fixedly connected to one end of the two connecting blocks 31. A second arc-shaped spring sheet 33 is fixedly connected to the top of the inside of the screen box 1. The arcs of the first arc-shaped spring sheet 32 ​​and the second arc-shaped spring sheet 33 are symmetrically designed. The end of the second arc-shaped spring sheet 33 away from the screen box 1 is fixedly connected to the screen plate 26. A baffle 34 is fixedly connected to the side of the inside of the screen box 1 near the guide plate 25.

[0037] Connecting block 31 is fixed to the outside of guide plate 25 and screen plate 26, serving as a fixing point for elastic component 3 and ensuring that elastic component 3 can correctly transmit force. First arc-shaped spring plate 32 connects the two connecting blocks 31 to one end of each other. Its arc-shaped design helps to provide elastic force, allowing screen plate 26 to vibrate slightly to promote material screening. Second arc-shaped spring plate 33 is fixedly connected to the top of the inside of screen box 1. It is symmetrically designed with first arc-shaped spring plate 32 and works together on screen plate 26 to provide necessary elastic support. The symmetrical design ensures that screen plate 26 is subjected to uniform force during screening, reduces uneven wear of screen plate 26, and extends the service life of screen plate 26. Baffle 34 is fixedly connected to the inside of screen box 1 near the guide plate 25 to guide and control the flow direction of material.

[0038] Working principle: such as Figure 1 - Figure 4 As shown: During operation, the bidirectional motor 21 is first started. This motor generates rotational motion through the eccentric wheel 22 at its drive end. Subsequently, the rotational motion is converted into linear vibration through the connecting rod 23. The rotating shaft seat 24 is responsible for effectively transmitting the excitation force to the screen box 1, causing the screen box 1 and the screen plate 26 to vibrate together. The vibration of the screen plate 26 causes the material to be screened on the screen surface. In this process, coarse particles are thrown to the other end of the screen box 1 under the vibration of the screen plate 26, while fine particles fall through the screen holes into the collection tray below. In the collection container, the function of the guide plate 25 is to guide the screened material to flow along the inclined direction of the screen plate 26, thereby optimizing the screening efficiency of the material. The first arc-shaped spring plate 32 and the second arc-shaped spring plate 33 in the elastic component 3 provide necessary elastic support during the vibration of the screen plate 26, ensuring that the vibration amplitude and frequency of the screen plate 26 are kept in an ideal state, while reducing the wear of the screen plate 26 and extending its service life. The baffle 34 ensures that the material flows along a predetermined path during the screening process, avoiding mixing of the material and the screened material, thereby preventing disorderly accumulation.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A large-scale linear vibrating screen with uniform thickness, characterized in that, include; Sieve box (1); Vibration assembly (2); The vibration assembly (2) includes a bidirectional motor (21) fixedly connected to the bottom of the screen box (1), an eccentric wheel (22) fixedly connected to the drive end of the bidirectional motor (21), a guide plate (25) movably connected to the bottom of the screen box (1), and a screen plate (26) movably connected to the side of the screen box (1) away from the guide plate (25). Elastic component (3); the elastic component (3) includes connecting blocks (31) fixedly connected to the outside of the guide plate (25) and the sieve plate (26), and a first arc-shaped spring sheet (32) fixedly connected to one end of the two connecting blocks (31), and a second arc-shaped spring sheet (33) fixedly connected to the top of the inside of the sieve box (1).

2. The large-scale uniform thickness linear vibrating screen according to claim 1, characterized in that: A baffle (34) is fixedly connected to the inside of the sieve box (1) near the guide plate (25).

3. A large-scale uniform thickness linear vibrating screen according to claim 1, characterized in that: The outer side of the eccentric wheel (22) is rotatably connected to a connecting rod (23), and the end of the connecting rod (23) away from the eccentric wheel (22) is fixedly connected to a rotating shaft seat (24).

4. A large-scale uniform thickness linear vibrating screen according to claim 1, characterized in that: The end of the second arc-shaped spring sheet (33) away from the sieve box (1) is fixedly connected to the sieve plate (26).

5. A large-scale uniform thickness linear vibrating screen according to claim 1, characterized in that: The arc shape of the first arc-shaped spring sheet (32) and the second arc-shaped spring sheet (33) is symmetrical.

6. A large-scale uniform thickness linear vibrating screen according to claim 3, characterized in that: The top end of the rotating shaft seat (24) is fixedly connected to the bottom end of the guide plate (25).

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