A straight vibrating screen with replaceable screen

Abstract

The utility model discloses a straight vibrating screen with screen cloth capable of being replaced quickly relates to screening device technical field. The straight vibrating screen includes frame, vibrator and screening device. Frame is by installation chassis, suspension spring and vibration frame is composed, is equipped with material inlet and the discharge port on the vibration frame. Screening device is detachably installed in the vibration frame, including pressing net frame, screen cloth and support frame, and the pressing net groove is opened on the support frame, and the screen cloth edge is greater than the inner edge in the pressing net groove, and through the locking cooperation of pressing net frame and support frame, the screen cloth can be automatically taut in the pressing process. The side of vibration frame is equipped with the side door, and the overall pull of screening device is convenient. The utility model optimizes the screen cloth clamping structure, realizes the quick replacement and efficient taut of screen cloth, and remarkably improves the maintenance efficiency. Meanwhile, the screening device can be integrated with vibrating screen ball and spacer strip design, effectively prevents the screen cloth from being blocked, guarantees the screening effect and production efficiency, and is suitable for the industrial scene that needs to replace the screen cloth frequently or handles the material that is easy to block.

Description

Technical Field

[0001] This utility model relates to the field of screening devices, specifically to a direct vibrating screen with a screen that can be quickly replaced. Background Technology

[0002] As a commonly used material screening / grading equipment in battery recycling, mining, chemical, and food processing, the ease of screen replacement and the maintenance efficiency of the screening device directly affect the continuity of production. However, existing technologies have significant shortcomings in these aspects. Currently, most direct vibrating screens use a method of fixing the screens with upper and lower frame clamps and short-interval threaded locks. When replacing the screens, multiple bolts on the frame must be removed one by one, and the screen tension depends on using tools to tighten it before tightening it with bolts. This operation is cumbersome and time-consuming, often leading to long-term interruptions in the production process. At the same time, the screening devices are mostly integrated fixed installation structures, and the vibrating frame is mostly a closed or semi-closed design, lacking a dedicated and convenient access channel. When repairing or replacing the screening device, the protective plate and support components must be disassembled first, and in some cases, the vibrating frame even needs to be lifted, making maintenance difficult and costly.

[0003] Furthermore, the screening efficiency and anti-clogging capabilities of existing direct vibrating screens are insufficient to meet the demands of high-efficiency production. The installation position of the vibrator often results in the vibration direction being parallel or perpendicular to the screen mesh, causing the material to move along a single trajectory on the screen surface, easily leading to localized accumulation. In addition, the lack of an effective material distribution structure below the material inlet generally causes material to fall in clumps, resulting in localized overload of the screen mesh, which not only reduces grading accuracy but also accelerates screen wear. Regarding the mesh clogging problem that easily occurs when screening fine particles or sticky materials, existing equipment generally lacks specific anti-clogging mechanisms. Clogging requires shutdown for cleaning with brushes or high-pressure air blowing, interrupting production and potentially damaging the screen mesh due to improper cleaning. Simultaneously, existing equipment is mostly designed for single-layer or fixed-layer screening, making it difficult to meet the needs of multi-particle-size grading. Even with multi-layer screening units, they are often not independently disassembled; damage to one layer of the screen requires complete disassembly and reassembly, further increasing maintenance costs and downtime. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a direct vibrating screen with a quick screen replacement, which aims to solve the problems of cumbersome, time-consuming and difficult screen replacement operation of the existing direct vibrating screen by optimizing the structural design of the screening device.

[0005] To solve the above-mentioned technical problems, this utility model provides a direct vibrating screen with a quickly replaceable screen, comprising: The frame includes a mounting base, suspension springs, and a vibrating frame. The mounting base is used to fix the vertical vibrating screen on the ground. Several suspension springs are fixedly installed on the top of the mounting base. The upper ends of the suspension springs together support the vibrating frame. The vibrating frame is provided with a material inlet, a large particle discharge port, and a small particle discharge port. The material inlet is located at the upper end of one side of the vibrating frame, the large particle discharge port is located at the lower end of the other side of the vibrating frame, and the small particle discharge port is located at the bottom of the vibrating frame. A vibrator, fixedly mounted on a vibrating frame, is used to provide vibration to the vibrating frame; The screening device is detachably installed inside the vibrating frame to separate the large particle discharge port and the small particle discharge port. The screening device includes a pressing frame, a screen, and a support frame. The support frame has a pressing groove that matches the pressing frame. The outer edge of the screen is larger than the inner edge of the pressing groove on the support frame. The pressing frame and the support frame can be locked together.

[0006] As some embodiments of this utility model, the screening device has two layers and a total of four groups.

[0007] As some embodiments of this utility model, the vibrating frame is also provided with a side door. After opening the side door, the screening device can be pulled out from the side, which makes it easy to remove the screening device and replace the screen.

[0008] As some embodiments of this utility model, a triangular frame is also provided at the upper end of the vibrating frame, and the vibrator is installed on one side of the triangular frame, so that the vibration direction is not parallel or perpendicular to the screen, which is conducive to better screening of materials.

[0009] As some embodiments of this utility model, a material distribution plate is provided below the material inlet, so that the material will not pile up when it falls onto the screening device, which is beneficial to improving screening efficiency.

[0010] As some embodiments of this utility model, the screen frame is also provided with handles to facilitate the removal of the screening device from the vibrating frame or its reinstallation in the vibrating frame.

[0011] As some embodiments of this utility model, the screening device further includes vibrating screen balls, a vibrating screen frame, and a support net. The vibrating screen frame is installed below the support frame, and a support net is provided below the vibrating screen frame. Several vibrating screen balls are placed on the support net, and the mesh size of the support net is greater than or equal to the mesh size of the screen. During the operation of the direct vibrating screen, the arrangement of the vibrating screen balls can make the screen vibration irregular and prevent the screen from clogging, which is beneficial to improving the screening effect and screening efficiency.

[0012] As some embodiments of this utility model, in order to make the vibrating screen balls more evenly distributed and avoid all the vibrating screen balls from piling up, the vibrating ball frame is provided with partitions, which divide the vibrating ball frame into several small spaces, and several vibrating screen balls are placed in each small space.

[0013] As some embodiments of this utility model, in order to facilitate the installation of the support net, the vibrating ball frame has a pressure groove, the outer edge of the support net is larger than the inner edge of the pressure groove on the vibrating ball frame, and a pressure frame matching the pressure groove is also included.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Enables quick and convenient screen replacement: significantly reducing downtime for maintenance. This invention optimizes the core structure of the screening device, employing a design that combines a screen pressing frame with a support frame featuring a screen pressing groove. The outer edge of the screen is set to be larger than the inner edge of the screen pressing groove. When replacing the screen, simply release the locking mechanism between the screen pressing frame and the support frame to quickly remove the old screen. When installing a new screen, no auxiliary tools are needed; the screen pressing frame automatically tightens the screen using its excess length. Compared to the cumbersome operation of disassembling bolts one by one and using tools for tightening in existing technologies, this design significantly reduces the time required for a single screen replacement, effectively minimizing production downtime and improving equipment utilization.

[0015] 2. Reduced maintenance difficulty and improved operational convenience: The side door structure added to the vibrating frame, combined with the handle design on the screen frame, allows the screening device to be directly pulled out from the side without disassembling the protective plate or support components of the vibrating frame, or lifting the entire frame, greatly reducing the difficulty of placing and removing the screening device. At the same time, the modular design of the screening device (independent and easily disassembled components such as the screen frame, support frame, and vibrating ball frame) further simplifies the component inspection and replacement process. Even multi-layer screening units can be independently disassembled and assembled, reducing unnecessary maintenance workload and the risk of component wear.

[0016] 3. Optimize screening efficiency and grading accuracy, and reduce material waste: On the one hand, the triangular frame at the top of the vibrating frame mounts the vibrator on the side, making the vibration direction non-parallel and non-perpendicular to the screen, breaking the limitation of the single material movement trajectory in existing equipment, and promoting more complete dispersion and sliding of materials on the screen surface, avoiding local accumulation; on the other hand, the distribution plate below the material inlet can evenly disperse the material to be screened onto the screen surface, preventing local overload of the screen caused by material piling up and falling, which not only reduces the phenomenon of incomplete screening of large particles carrying fine particles, but also reduces the wear of the screen caused by excessive local stress, extends the service life of the screen, and significantly improves screening accuracy and screening speed.

[0017] 4. Effectively solves screen clogging problems and reduces maintenance costs: The vibrating screen balls, the vibrating ball frame with spacers, and the supporting mesh structure added to the screening device form a targeted anti-clogging mechanism. When the direct vibrating screen is working, the vibrating screen balls move irregularly on the supporting mesh with the vibration of the equipment, continuously and gently impacting the bottom of the screen, which can promptly clean fine particles or sticky materials embedded in the mesh, reducing clogging at its source; the spacers in the vibrating ball frame separate the vibrating screen balls into multiple small spaces, avoiding uneven anti-clogging effect caused by their aggregation, reducing the risk of decreased screening efficiency and screen damage due to clogging, and significantly reducing maintenance costs in the long run.

[0018] 5. Adaptable to multi-particle-size screening needs, enhancing equipment versatility: This utility model can be configured with multiple screening units according to production requirements, and the mesh size of each layer of screen can be flexibly adjusted. Combined with an independent discharge port design, it can achieve simultaneous screening of materials of various particle sizes. At the same time, the multi-layer screening units can be independently disassembled and assembled, so there is no need to disassemble the whole unit when a certain layer of screen is damaged. This further enhances the adaptability of the equipment to different production scenarios and is suitable for the differentiated screening needs of multiple fields such as battery recycling, mining, chemical industry, and grain processing, thereby enhancing the equipment's versatility and cost-effectiveness.

[0019] In summary, this utility model achieves breakthroughs in five dimensions—"screen replacement efficiency, maintenance convenience, screening performance, anti-clogging capability, and scenario adaptability"—through structural optimization. It effectively solves the technical pain points of existing direct vibrating screens, improves production continuity and screening quality, and reduces the operation and maintenance costs of the equipment throughout its entire life cycle. It has significant practical value and promotional significance. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the direct vibrating screen according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the direct vibrating screen according to an embodiment of this application; Figure 3 This is a schematic diagram of the right side of the direct vibrating screen structure according to an embodiment of this application; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle CC section; Figure 5 This is a schematic diagram showing the removal of the screening device according to an embodiment of this application; Figure 6This is a schematic diagram of the exploded structure of the screening device according to an embodiment of this application; Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0022] The labels in the attached diagram are as follows: 1. Frame; 11. Mounting base; 12. Suspension spring; 13. Vibrating frame; 131. Side door; 132. Triangular frame; 133. Material inlet; 134. Distribution plate; 135. Large particle discharge port; 136. Small particle discharge port; 2. Vibrator; 3. Screening device; 31. Pressing screen frame; 311. Handle; 32. Screen; 33. Support frame; 331. Pressing screen groove; 34. Vibrating screen ball; 35. Vibrating ball frame; 351. Pressing support groove; 352. Spacer; 36. Supporting screen; 37. Pressing support frame. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0024] Example 1: This example discloses a direct vibrating screen with a quickly replaceable screen, such as... Figures 1-7 As shown, it includes: The frame 1 includes a mounting base 11, suspension springs 12, and a vibrating frame 13. The mounting base 11 is used to fix the vertical vibrating screen on the ground. Several suspension springs 12 are fixedly installed on the top of the mounting base 11. The upper ends of the several suspension springs 12 jointly support the vibrating frame 13. The vibrating frame 13 is provided with a material inlet 133, a large particle discharge port 135, and a small particle discharge port 136. The material inlet 133 is located at the upper end of one side of the vibrating frame 13, the large particle discharge port 135 is located at the lower end of the other side of the vibrating frame 13, and the small particle discharge port 136 is located below the vibrating frame 13. Vibrator 2 is fixedly installed on vibrating frame 13 and is used to provide vibration to vibrating frame 13; The screening device 3 is detachably installed inside the vibrating frame 13 to separate the large particle discharge port 135 and the small particle discharge port 136. The screening device 3 includes a screen frame 31, a screen 32 and a support frame 33. The support frame 33 has a screen groove 331 that cooperates with the screen frame 31. The outer edge of the screen 32 is larger than the inner edge of the screen groove 331 on the support frame 33. The screen frame 31 and the support frame 33 can be locked together.

[0025] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: Since the screening device 3 adopts a structure of a pressing frame 31, a screen 32, and a support frame 33, and a pressing groove 331 is opened on the support frame 33, the outer edge of the screen 32 is larger than the inner edge of the pressing groove 331 on the support frame 33. Therefore, when replacing the screen 32, first release the locking between the pressing frame 31 and the support frame 33, and then separate the pressing frame 31 and the support frame 33. At this time, the old screen 32 can be easily removed. Then, the new screen 32 is placed on the support frame 33, and the screen 32 is pressed against the support frame 33 by the screen pressing frame 31. During the pressing process of the screen pressing frame 31, the screen 32 that exceeds the inner edge of the screen pressing groove 331 will be bent downward and inserted between the screen pressing frame 31 and the screen pressing groove 331. As the screen pressing frame 31 continues to press down, the edge of the screen 32 will have a downward tendency under the action of friction, thereby tightening the screen 32 and facilitating the efficient screening of subsequent materials. When the screen pressing frame 31 is pressed to the bottom, the installation of the screen can be completed by locking the screen pressing frame 31 and the support frame 33. The locking between the screen pressing frame 31 and the support frame 33 can be done by thread fastening or other quick locking methods such as rotation and pressing. Compared to the existing installation method that directly clamps the edges of the screen 32 with the upper and lower edges and locks it with a short-distance thread to keep the screen 32 taut, the screen 32 can be replaced much faster in this invention. Moreover, the screen 32 is easy to tighten and can be easily achieved without auxiliary tools.

[0026] Example 2: This example demonstrates one detailed structural scheme of the direct vibrating screen of this application, based on Example 1. Figure 1 , Figure 5 As shown, in this embodiment, the screening device 3 has two layers and a total of four sets. The vibrating frame 13 is also equipped with a side door 131. After opening the side door 131, the screening device 3 can be pulled out from the side, which facilitates the removal of the screening device 3 and replacement of the screen 32. Of course, in other embodiments of this utility model, the screening device 3 can be set with a single layer or more layers. Moreover, when the screening device 3 has multiple layers, the mesh size of the screen 32 can be set to gradually decrease from top to bottom. Furthermore, each layer of the screening device 3 can be equipped with a separate outlet for the material on the screen, so as to realize the screening / grading of materials with different particle size ranges.

[0027] Meanwhile, a tripod 132 is also provided on the upper end of the vibrating frame 13, and the vibrator 2 is installed on one side of the tripod 132, so that the vibration direction is not parallel or perpendicular to the screen 32, which is conducive to better screening of materials.

[0028] A material distribution plate 134 is provided below the material inlet 133, so that the material will not pile up when it falls onto the screening device 3, which helps to improve screening efficiency.

[0029] Example 3: This example demonstrates a detailed structural scheme of the screening device 3 in this application, based on Example 1. Figure 6 , Figure 7 As shown, in this embodiment, the screen frame 31 is also provided with a handle 311, which makes it easy to remove the screening device 3 from the vibrating frame 13 or install it back into the vibrating frame 13.

[0030] The screening device 3 also includes vibrating screen balls 34, a vibrating screen frame 35, and a support net 36. The vibrating screen frame 35 is installed below the support frame 33, and the support net 36 is located below the vibrating screen frame 35. Several vibrating screen balls 34 are placed on the support net 36, and the mesh size of the support net 36 is greater than or equal to the mesh size of the screen 32. During the operation of the direct vibrating screen, the arrangement of the vibrating screen balls 34 can make the screen 32 vibrate irregularly and prevent the screen 32 from clogging, which is beneficial to improving the screening effect and screening efficiency.

[0031] In order to make the vibrating screen balls 34 more evenly distributed and to prevent all the vibrating screen balls 34 from piling up, the vibrating ball frame 35 is provided with a partition strip 352. The partition strip 352 divides the vibrating ball frame 35 into several small spaces, and several vibrating screen balls 34 are placed in each small space.

[0032] To facilitate the installation of the support net 36, the vibrating ball frame 35 has a pressure groove 351. The outer edge of the support net 36 is larger than the inner edge of the pressure groove 351 on the vibrating ball frame 35. It also includes a pressure frame 37 that matches the pressure groove 351.

[0033] When using this direct vibrating screen, first start the vibrator 2, then add the material to be screened through the material inlet 133. After the material enters, it is dispersed above the screening device 3 under the action of the distribution plate 134. Under the vibration of the vibrator 2 and the elastic counter-vibration of the suspension spring 12, small particles fall from the screen 32 and are discharged from the small particle discharge port 136, while large particles move to the other end under vibration and are finally discharged from the large particle discharge port 135, thereby realizing the screening of the material.

[0034] The main technical features, basic principles, and related advantages of this utility model have been described above. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the concept or basic characteristics of this utility model. Therefore, the above-described embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0035] Furthermore, it should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A linear vibrating screen with a quickly replaceable screen, characterized in that, include: The frame (1) includes a mounting base (11), suspension springs (12) and a vibrating frame (13). The mounting base (11) is used to fix the direct vibrating screen on the ground. Several suspension springs (12) are fixedly installed above the mounting base (11). The upper ends of the several suspension springs (12) support the vibrating frame (13). The vibrating frame (13) is provided with a material inlet (133), a large particle discharge port (135) and a small particle discharge port (136). The material inlet (133) is located at the upper end of one side of the vibrating frame (13), the large particle discharge port (135) is located at the lower end of the other side of the vibrating frame (13), and the small particle discharge port (136) is located below the vibrating frame (13). The vibrator (2) is fixedly installed on the vibrating frame (13) and is used to provide vibration to the vibrating frame (13); The screening device (3) is detachably installed in the vibrating frame (13) to separate the large particle discharge port (135) and the small particle discharge port (136). The screening device (3) includes a screen frame (31), a screen (32) and a support frame (33). The support frame (33) has a screen groove (331) that matches the screen frame (31). The outer edge of the screen (32) is larger than the inner edge of the screen groove (331) on the support frame (33). The screen frame (31) and the support frame (33) can be locked together.

2. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, The screening device (3) has two layers and a total of four groups.

3. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, The vibrating frame (13) is also equipped with a side door (131). After opening the side door (131), the screening device (3) can be pulled out from the side.

4. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, The upper end of the vibrating frame (13) is also provided with a tripod (132), and the vibrator (2) is installed on one side of the tripod (132), so that the vibration direction is not parallel or perpendicular to the screen (32).

5. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, A material distribution plate (134) is provided below the material inlet (133) so that the material will not pile up when it falls onto the screening device (3).

6. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, The screen frame (31) is also equipped with a handle (311) to facilitate removing the screening device (3) from the vibrating frame (13) or installing it back into the vibrating frame (13).

7. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, The screening device (3) also includes vibrating screen balls (34), vibrating ball frame (35) and support net (36). The vibrating ball frame (35) is installed below the support frame (33). The support net (36) is provided below the vibrating ball frame (35). Several vibrating screen balls (34) are placed on the support net (36). The mesh size of the support net (36) is greater than or equal to the mesh size of the screen (32).

8. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, The vibrating ball frame (35) is provided with a partition (352), which divides the vibrating ball frame (35) into several small spaces, and several vibrating screen balls (34) are placed in each small space.

9. A direct vibrating screen with a quickly replaceable screen according to claim 1, characterized in that, To facilitate the installation of the support net (36), the vibrating ball frame (35) has a pressure groove (351), the outer edge of the support net (36) is larger than the inner edge of the pressure groove (351) on the vibrating ball frame (35), and also includes a pressure frame (37) that matches the pressure groove (351).

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