Screen shaft and roller screen
By designing a screen plate assembly in the roller screen that can be independently disassembled and tightly connected to the rotating shaft, the screen aperture size of the roller screen can be quickly adjusted, solving the problem of complex screen aperture size adjustment in existing roller screens, and improving production efficiency and equipment stability.
Patent Information
- Application Number
- CN202520115478.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The existing roller screen aperture size adjustment process is complicated, which affects equipment performance and production efficiency, and requires a lot of human and material resources, resulting in long-term downtime.
Design a screen shaft including a rotating shaft and a screen plate assembly. The screen plate assembly consists of screen plate components and screening components. The screening components can be independently disassembled and are tightly connected to the outer wall of the rotating shaft, allowing for rapid adjustment of the screen aperture size without disassembling the rotating shaft.
It simplifies the process of adjusting the screen aperture size, reduces the difficulty of operation and the burden of on-site maintenance, saves time and costs, improves production flexibility and efficiency, and enhances the stability and durability of the screen shaft.
Smart Images
Figure CN223819073U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mine mechanical equipment technical field, especially relate to a sieve axle and roller axle sieve. BACKGROUND
[0002] As a kind of efficient solid separation equipment, roller axle sieve has been widely applied in chemical industry, mine, metallurgy, environmental protection and multiple fields etc..Its unique multistage linkage roller axle sieve structure makes the equipment can adjust screen size according to actual production demand on site, to realize the effective separation of different particle size materials.Although roller axle sieve has many advantages in technology, but in actual application, it also faces some challenges, the screen size adjustment process of existing roller axle sieve is complex, not only affects the performance of equipment itself, also causes adverse effect on the efficiency and economic benefit of overall production. SUMMARY
[0003] The main purpose of the utility model is to propose a kind of sieve axle and roller axle sieve, to solve the problem of how to quickly adjust the screen size of roller axle sieve.
[0004] To achieve the above object, the utility model provides a kind of sieve axle, the sieve axle includes rotating shaft and sieve piece assembly, the number of sieve piece assembly is multiple, multiple sieve piece assembly is spaced apart along the axial direction of rotating shaft, sieve piece assembly includes sieve piece component and screening piece, the number of screening piece is at least two, at least two screening piece is sequentially arranged along the circumferential direction of rotating shaft, the inner wall of each screening piece is attached to the outer wall of rotating shaft, the sieve piece component is set on the outer wall of rotating shaft, the inner wall of sieve piece component is connected with the outer wall of rotating shaft, and the screening piece is connected with the sieve piece component.
[0005] In an embodiment, the screening piece includes a first connecting portion and a second connecting portion connected to each other, the outer diameter of the first connecting portion is not more than the outer diameter of the second connecting portion, the inner wall of the first connecting portion and the inner wall of the second connecting portion are attached to the outer wall of the rotating shaft, and the side of the second connecting portion away from the first connecting portion is connected with the sieve piece component.
[0006] In an embodiment, a welding hole is provided on the first connecting portion, and the first connecting portion is welded to the outer wall of the rotating shaft through the welding hole.
[0007] In an embodiment, at least two screening pieces are spaced apart along the outer wall of the rotating shaft, and the sum of the sizes of the inner walls of the at least two screening pieces extending along the circumferential direction of the rotating shaft is 70% to 80% of the outer circumference length of the outer wall of the rotating shaft.
[0008] In an embodiment, the screen piece component comprises an elliptical screen piece and a first arc-shaped screen piece, the elliptical screen piece is sleeved on the outer wall of the rotating shaft, the inner wall of the elliptical screen piece is connected with the outer wall of the rotating shaft, the screening member is connected with the elliptical screen piece, the two sides of the elliptical screen piece along the short axis direction are respectively a first mounting position and a second mounting position, the first arc-shaped screen piece is arranged at the first mounting position, and the first arc-shaped screen piece is attached to the outer wall of the elliptical screen piece.
[0009] In an embodiment, the screen piece component further comprises a second arc-shaped screen piece, and the second arc-shaped screen piece is arranged at the second mounting position.
[0010] In an embodiment, the first arc-shaped screen piece comprises a first high manganese steel arc-shaped screen piece or a first alloy steel arc-shaped screen piece.
[0011] In an embodiment, the first arc-shaped screen piece comprises a first high manganese steel arc-shaped screen piece or a first alloy steel arc-shaped screen piece.
[0012] And / or,
[0013] The screening member comprises a high manganese steel screening member or an alloy steel screening member.
[0014] In addition, the utility model discloses a roller screen, the roller screen includes power mechanism and as any one of the above technical solutions described sieve axle, the number of sieve axle is multiple, and the screen piece assembly on any two adjacent sieve axle is staggered, and the number of power mechanism does not exceed the number of sieve axle, and each power mechanism is at least with rotating shaft transmission connection, and the screen hole is formed between any two adjacent rotating shaft and any two adjacent screen piece assembly on two rotating shafts.
[0015] In an embodiment, the number of power mechanisms is consistent with the number of sieve shafts and is arranged one by one, the two ends of the rotating shaft are respectively a third end and a fourth end, each power mechanism is transmission connected with the third end on the corresponding rotating shaft, and the third end and the fourth end of any two adjacent rotating shafts are located on the same side.
[0016] In the embodiment of the utility model, the rotating shaft is the basic component of the screen shaft, provides support and rotation function for the whole screen piece assembly, a plurality of screen piece assemblies are arranged on the rotating shaft in the axial direction, the effective screening area in unit length is increased, thereby the efficiency of material screening is improved, the screening operation is facilitated, the screen hole is formed between any two adjacent rotating shafts and any two adjacent screen piece assemblies on the two rotating shafts, the screen piece assembly comprises a screen piece component and a screening member, the screen piece component is sleeved on the outer wall of the rotating shaft, each screen piece assembly comprises at least two screening members, the at least two screening members are sequentially arranged in the circumferential direction of the rotating shaft, the inner wall of each screening member is attached to the outer wall of the rotating shaft, the size of the screen hole is changed and adjusted by arranging the at least two screening members, compared with the screen piece sleeved on the outer wall of the rotating shaft in the prior art, the whole rotating shaft needs to be disassembled when disassembling, then screen pieces of different specifications are replaced to change the size of the screen hole, the screening member can be replaced without disassembling the rotating shaft, the operation difficulty and the work burden of on-site maintenance are greatly reduced, the disassembly time is saved, the number and size of the screening members can be flexibly adjusted and selected according to actual needs, thereby the screening task of diversified materials with different particle sizes, shapes or types can be adapted, higher flexibility and applicability are provided, the creation of smoother material flow path is facilitated, the possibility of blockage is reduced, and uniform distribution of materials between each screen piece assembly is ensured, and the screening quality is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to the structure shown in these drawings without creating labor.
[0018] Figure 1Structure schematic view of one embodiment of the screen shaft of the utility model;
[0019] Figure 2 Structure schematic view of another view angle of one embodiment of the main screen shaft of the utility model;
[0020] Figure 3 Structure schematic view of one embodiment of the screening part of the screen shaft of the utility model;
[0021] Figure 4 Structure schematic view of one embodiment of the screen piece component of the screen shaft of the utility model;
[0022] Figure 5 Structure schematic view of one embodiment of the first arc-shaped screen piece of the screen shaft of the utility model;
[0023] Figure 6 Structure schematic view of another view angle of one embodiment of the first arc-shaped screen piece of the screen shaft of the utility model;
[0024] Figure 7 Structure schematic view of one embodiment of the roller screen of the utility model;
[0025] Figure 8 Structure schematic view of another embodiment of the roller screen of the utility model.
[0026] Explanation of reference numerals:
[0027] 100, screen shaft; 1, rotating shaft; 11, third end; 12, fourth end; 2, screen piece assembly; 21, screen piece component; 211, oval screen piece; 2111, first mounting position; 2112, second mounting position; 212, first arc-shaped screen piece; 2121, first end; 2122, second end; 213, second arc-shaped screen piece; 22, screening part; 221, first connecting part; 2211, welding hole; 222, second connecting part;
[0028] 200, roller screen; 210, screen hole.
[0029] The implementation, functional features and advantages of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, and back), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0033] Roller screens, as a highly efficient solid separation device, have been widely used in various fields such as chemical engineering, mining, metallurgy, and environmental protection. Their unique multi-stage linkage structure allows for adjustment of the screen aperture size according to actual production needs, thus achieving effective separation of materials with different particle sizes. Despite the numerous technical advantages of roller screens, they also face some challenges in practical applications. The complex process of adjusting the screen aperture size of existing roller screens not only affects the performance of the equipment itself but also negatively impacts overall production efficiency and economic benefits.
[0034] After careful study, the applicant found that the internal space of the roller screen is relatively narrow, and the disassembly of the transmission components of the screen body is difficult. This makes the adjustment of the screen aperture size more complicated. When it is necessary to adjust the screen aperture size or replace worn parts, the narrow internal space makes it difficult for operators to enter or move, increasing the difficulty of operation and time consumption. As a result, the process of adjusting the screen aperture size is not only time-consuming and labor-intensive, but also requires a large amount of human and material resources, which affects the normal production operation of the equipment. In addition, the long downtime waiting for the screen aperture size adjustment to be completed reduces the effective working time, reduces the production efficiency of the equipment, and thus affects the overall production efficiency and economic benefits.
[0035] The main purpose of this invention is to propose a sieve shaft and roller sieve to solve the problem of how to quickly adjust the sieve aperture size of the roller sieve.
[0036] Please see Figure 1 andFigure 2 In one embodiment of the present invention, the sieve shaft 100 includes a rotating shaft 1 and a sieve plate assembly 2. There are multiple sieve plate assemblies 2, which are spaced apart along the axial direction of the rotating shaft 1. Each sieve plate assembly 2 includes a sieve plate component 21 and a screening component 22. There are at least two screening components 22, which are arranged sequentially along the circumference of the rotating shaft 1. The inner wall of each screening component 22 is attached to the outer wall of the rotating shaft 1. The sieve plate component 21 is sleeved on the outer wall of the rotating shaft 1, and the inner wall of the sieve plate component 21 is connected to the outer wall of the rotating shaft 1. The screening component 22 is connected to the sieve plate component 21.
[0037] In this embodiment of the utility model, the rotating shaft 1 is the basic component of the sieve shaft 100, providing support and rotation for the entire sieve assembly 2. By arranging multiple sieve assemblies 2 axially spaced on the rotating shaft 1, the effective screening area per unit length is increased, thereby improving the efficiency of material screening and facilitating screening operations. A sieve hole 210 is formed between any two adjacent rotating shafts 1 and any two adjacent sieve assemblies 2 located on the two rotating shafts 1. The sieve assembly 2 includes sieve components 21 and screening elements 22. The sieve components 21 are sleeved on the outer wall of the rotating shaft 1. Each sieve assembly 2 includes at least two screening elements 22, which are arranged sequentially along the circumference of the rotating shaft 1. The inner wall of each screening element 22 is attached to the outer wall of the rotating shaft 1. By setting at least two sieve components 22... The screen component 22 can change and adjust the size of the screen aperture 210. Compared with the existing structure where the screen plates are sleeved on the outer wall of the rotating shaft 1, disassembly requires removing the entire rotating shaft 1 and replacing the screen plates with different specifications to change the size of the screen aperture 210. This screen shaft 100 can replace the screen component 22 without disassembling the rotating shaft 1, which greatly reduces the difficulty of operation and the workload of on-site maintenance, and saves disassembly time. The number and size of the screen component 22 can be flexibly adjusted and selected according to actual needs, so as to adapt to the screening tasks of diverse materials with different particle sizes, shapes or types, providing greater flexibility and applicability, helping to create a smoother material flow path, reducing the possibility of blockage, and ensuring that the material is evenly distributed among the various screen plate components 2, further improving the screening quality.
[0038] The technical solution of this utility model achieves rapid adjustment of the screening size of the roller screen 200 by using screening components 22. Each screening component 22 is independent and easy to disassemble, facilitating individual maintenance or replacement of damaged parts. The replacement of the screening component 22 can be completed without disassembling the rotating shaft 1, simplifying the maintenance process, greatly reducing the difficulty of operation and the workload of on-site maintenance, saving disassembly time, reducing energy consumption and costs in production, eliminating the need for long-term downtime or complex operations, greatly improving the flexibility and response speed of production, and enabling rapid adjustment of the screen aperture 210 size of the roller screen 200, significantly improving the production efficiency of the roller screen 200. The inner wall of each screening component 22 is attached to the outer wall of the rotating shaft 1. Through the tight connection between each screening component 22 and the rotating shaft 1, additional support and protection are provided for the rotating shaft 1, enhancing the structural strength and stability of the entire screen shaft 100, further improving the stability and durability of the screen shaft 100, increasing the load-bearing capacity of the screen shaft 100, and reducing the failure rate during operation.
[0039] In this embodiment, the screen plate component 21 is sleeved on the outer wall of the rotating shaft 1 and can be connected to the rotating shaft 1 by splines or directly welded to the outer wall of the rotating shaft 1. This embodiment does not limit the specific connection method between the screen plate component 21 and the rotating shaft 1. In order to improve the screening quality of the screen shaft 100, the screen plate assembly 2 is evenly arranged along the axial direction of the rotating shaft 1. In this embodiment, there are two screening components 22, which are evenly arranged along the circumference of the rotating shaft 1, thereby improving the load-bearing capacity of the screen shaft 100 and preventing the screen shaft 100 from shifting when rotating.
[0040] According to one embodiment of the present invention, the number of screening components 22 is at least two. The at least two screening components 22 are arranged circumferentially along the rotating shaft 1, and the two ends of each screening component 22 abut against each other in sequence, that is, the at least two screening components 22 surround to form a ring, which can not only change the screening size, but also facilitate the quick disassembly of the screening components 22.
[0041] Please see Figure 1 and Figure 3In one embodiment, the screening component 22 includes a first connecting portion 221 and a second connecting portion 222 connected to each other. The outer diameter of the first connecting portion 221 does not exceed the outer diameter of the second connecting portion 222. The inner walls of both the first connecting portion 221 and the second connecting portion 222 are attached to the outer wall of the rotating shaft 1. The side of the second connecting portion 222 away from the first connecting portion 221 is connected to the screen plate component 21. Specifically, in this embodiment, the outer diameter of the first connecting portion 221 is smaller than the outer diameter of the second connecting portion 222. By setting the side of the second connecting portion 222 away from the first connecting portion 221 to connect to the screen plate component 21, the contact area between the screening component 22 and the screen plate component 21 is expanded, thereby enhancing the mechanical connection strength and load-bearing capacity of the screen plate component 21 and the screening component 22, which helps to ensure the screening... The screening component 22 remains stable under high-speed rotation and material pressure, reducing the risk of loosening or displacement. This allows the screening component 22 to be more securely installed on the screen assembly 2 and the rotating shaft 1, improving the stability and accuracy of the entire screen shaft 100, thereby enhancing the overall screening efficiency and quality. Furthermore, the connection between the screening component 222 and the screen assembly 21 facilitates the installation and positioning of the screening component 22, improving installation efficiency. The outer diameter of the first connecting part 221 is smaller than that of the second connecting part 222. Through the lightweight structural design, the overall weight of the screening component 22 is effectively reduced, lowering the energy consumption during the operation of the screen shaft 100 and achieving the goal of energy conservation and environmental protection. The first connecting part 221 can be welded to the outer wall of the rotating shaft 1, thus facilitating the disassembly and installation of the first connecting part 221.
[0042] According to one embodiment of the present invention, the screening component 22 includes a first connecting part 221 and a second connecting part 222 that are connected to each other. The outer diameter of the first connecting part 221 is equal to the outer diameter of the second connecting part 222. The inner wall of the first connecting part 221 and the inner wall of the second connecting part 222 are both attached to the outer wall of the rotating shaft 1, so that the screening component 22 can be stably installed on the screen assembly 2 and the rotating shaft 1.
[0043] Please see Figure 3In one embodiment, the first connecting part 221 is provided with a welding hole 2211, through which the first connecting part 221 is welded to the outer wall of the rotating shaft 1. Specifically, by providing the welding hole 2211, welding between the first connecting part 221 and the rotating shaft 1 is facilitated, greatly enhancing the firmness of the connection between the two, significantly improving the stability and vibration resistance of the entire screen shaft, ensuring that the screening component 22 will not loosen or fall off under high load and high vibration environments. Furthermore, the design of the pre-set welding hole 2211 makes the installation process simpler and more direct, reducing reliance on complex assembly processes. Once accurately positioned, it can be quickly fixed by welding, saving time and cost. The welded connection has superior performance. High durability ensures that the roller screen 200 maintains its performance over a long period, providing a reliable long-term operating guarantee, reducing maintenance needs and downtime, and improving production efficiency. During disassembly, tools such as a plasma cutter can be used to cut the weld joints by inserting the cutting head into the weld holes 2211, which is convenient and quick, eliminating the need to disassemble the rotating shaft 1. This simplifies the maintenance process, greatly reduces the difficulty of operation and the workload of on-site maintenance, reduces energy consumption and costs, saves disassembly time, and eliminates the need for prolonged downtime or complex operations, significantly improving production flexibility and response speed. It also enables rapid adjustment of the screen aperture 210 size, significantly improving the production efficiency of the roller screen 200. In this embodiment, there are three weld holes 2211, evenly distributed. In other embodiments, the number of weld holes 2211 can be selected according to actual needs; this embodiment does not limit this.
[0044] According to one embodiment of the present invention, a through hole is provided on the first connecting part 221, a threaded hole is provided on the rotating shaft 1, and the screen shaft 100 also includes a bolt. After the bolt passes through the through hole, it engages with the threaded hole, thereby realizing the detachable connection between the first connecting part 221 and the rotating shaft 1. This simplifies the maintenance process, greatly reduces the difficulty of operation and the workload of on-site maintenance, saves disassembly time, and greatly improves the flexibility and response speed of production. It can also realize the rapid adjustment of the screen hole 210 size of the roller screen 200.
[0045] Please see Figure 1In one embodiment, at least two screening elements 22 are spaced apart along the outer wall of the rotating shaft 1, and the sum of the dimensions of the inner walls of the at least two screening elements 22 extending circumferentially along the rotating shaft 1 is 70% to 80% of the outer circumference of the outer wall of the rotating shaft 1. Specifically, the screening elements 22 in each screen assembly 2 cover 70% to 80% of the outer circumference of the outer wall of the rotating shaft 1, so that there is a certain gap between two adjacent screening elements 22. Through the combined action of the screening elements 22 and the gap, the consistency and accuracy of material size during the screening process are ensured. By reasonably adjusting the dimensions and layout of the inner walls of the screening elements 22 extending circumferentially along the rotating shaft 1, fine control of the screening aperture can be achieved, thereby ensuring the quality of the screening results. This design ensures sufficient effective screening area while retaining a certain gap for larger particles to pass smoothly through the screen holes 210. This design reduces the possibility of material blockage, improves screening efficiency, and helps to better match the market demand for materials of various sizes according to different market demands and values, thereby improving overall profitability.
[0046] Please see Figure 1 , Figure 2 and Figure 4In one embodiment, the sieve component 21 includes an elliptical sieve 211 and a first arc-shaped sieve 212. The elliptical sieve 211 is sleeved on the outer wall of the rotating shaft 1, and the inner wall of the elliptical sieve 211 is connected to the outer wall of the rotating shaft 1. The sieve component 22 is connected to the elliptical sieve 211. The two sides of the elliptical sieve 211 along its minor axis are respectively a first mounting position 2111 and a second mounting position 2112. The first arc-shaped sieve 212 is disposed at the first mounting position 2111 and fits against the outer wall of the elliptical sieve 211. Specifically, the elliptical sieve 211 has a major axis direction and a minor axis direction. The first arc-shaped sieve 212 is located at the first mounting position 2111 in the minor axis direction of the elliptical sieve 211. The curvature of the first arc-shaped sieve 212 is precisely matched with the curvature of the elliptical sieve 211 in the minor axis direction, ensuring that the first arc-shaped sieve 212 fits against the outer wall of the elliptical sieve 211. The tight fit between the elliptical screen plates 211 significantly reduces material leakage during the screening process, thereby effectively improving screening efficiency. The distance between the center of the first arc-shaped screen plate 212 and the center of the elliptical screen plate 211 is the same as the distance between the end of the long axis of the elliptical screen plate 211 and the center. When material passes through, both ends of the long axis of the elliptical screen plate 211 and the first arc-shaped screen plate 212 can push the material along a specific path, which helps the roller screen 200 to process large particles more efficiently, reduce clogging and jamming, and thus improve production efficiency and reduce material accumulation, thereby improving screening efficiency. The number and size of the first arc-shaped screen plates 212 can be flexibly adjusted and selected according to actual needs, thereby realizing fine adjustment of the screening aperture to adapt to the screening tasks of diverse materials with different particle sizes, shapes or types, providing greater flexibility and applicability, and meeting the requirements of high-precision screening. In this embodiment, there is one first arc-shaped screen plate 212. The first arc-shaped screen plate 212 is welded to the outer wall of the elliptical screen plate 211. Since the first arc-shaped screen plate 212 protrudes outward relative to the elliptical screen plate 211, it is easy to disassemble and install, which facilitates daily maintenance or replacement of damaged parts, saves disassembly time, eliminates the need for long-term downtime or complex operations, greatly improves the flexibility and response speed of production, enables rapid adjustment of the screen hole 210 size of the roller screen 200, and significantly improves the production efficiency of the roller screen 200.
[0047] Please see Figure 2 and Figure 4In one embodiment, the screen component 21 further includes a second arc-shaped screen 213, which is disposed at the second mounting position 2112. Specifically, by installing the first arc-shaped screen 212 and the second arc-shaped screen 213 on both sides of the minor axis of the elliptical screen 211, the distance between the first arc-shaped screen 212 and the second arc-shaped screen 213 is the same as the distance between the major axis ends of the elliptical screen 211. When material passes through, the two ends of the major axis of the elliptical screen 211 and the first arc-shaped screen 212 and the second arc-shaped screen 213 are close together. Both 213 can push materials along a specific path, helping the roller screen 200 to process large particles more efficiently, reducing clogging and jamming, thereby improving production efficiency and reducing material accumulation, thus improving screening efficiency. The number and size of the second arc-shaped screen 213 can be flexibly adjusted and selected according to actual needs, thereby achieving fine adjustment of the screening aperture. The first arc-shaped screen 212 and the second arc-shaped screen 213 are symmetrically distributed on both sides of the elliptical screen 211, which helps to distribute the pressure and vibration from the material more evenly, avoid local stress concentration, extend the service life of each component, and reduce the risk of failure. By precisely controlling the relative position and shape between the elliptical screen 211, the first arc-shaped screen 212, and the second arc-shaped screen 213, fine adjustment of the screening aperture can be achieved, ensuring the accuracy and consistency of screening results. Through the close cooperation of the screening component 22, the first arc-shaped screen 212, and the second arc-shaped screen 213, the overall performance of the screen shaft 100 is improved, and it can better adapt to various complex production environments. With the continuous rotation of the rotating shaft 1, they work together to complete the screening operation. This also enables the roller screen 200 to classify coal more efficiently during the screening process, thereby improving screening accuracy and efficiency. The specific screening process is as follows: coal continuously enters from the feed end of the roller screen 200 and is screened by the precise cooperation of the first arc-shaped screen plate 212, the second arc-shaped screen plate 213, the screening component 22 and the elliptical screen plate 211. Materials of different particle sizes are effectively separated. This screening method not only improves screening efficiency but also ensures screening accuracy, enabling materials of various particle sizes to be accurately classified, thereby meeting different production needs.
[0048] Please see Figure 5 and Figure 6In one embodiment, the first arc-shaped screen plate 212 has a first end 2121 and a second end 2122 on both sides along the radial direction of the rotation axis 1. The first end 2121 is attached to the outer wall of the elliptical screen plate 211. The thickness of the first end 2121 is defined as A, and the thickness of the second end 2122 is defined as B. Then, A ≤ B. Specifically, in order to significantly improve the production efficiency of the roller screen 200 and effectively reduce the burden of on-site maintenance, the applicant conducted a series of experimental studies on the screen plate structure through a meticulous equipment debugging process. In this process, theoretical design was first carried out, followed by a detailed review of the scheme. In this embodiment, the first arc-shaped screen plate 212... The thickness gradually increases from the first end 2121 to the second end 2122. This gradual thickness design can better adapt to the flow characteristics of materials, thereby improving screening efficiency and effectively reducing the overall weight of the first arc-shaped screen plate 212. By optimizing the material distribution, unnecessary material usage is reduced, making the entire screen plate component 21 lighter. The lightweight first arc-shaped screen plate 212 is easier to handle and install, simplifying the equipment assembly process. At the same time, the lighter weight also makes operation more convenient, saving time and labor costs. It also effectively reduces the overall weight of the screen shaft 100, reduces energy consumption during equipment operation, and achieves the goal of energy conservation and environmental protection.
[0049] According to one embodiment of the present invention, the first arc-shaped sieve plate 212 has a first end 2121 and a second end 2122 on both sides along the radial direction of the rotation shaft 1. The first end 2121 is attached to the outer wall of the elliptical sieve plate 211. The thickness of the first end 2121 is A, and the thickness of the second end 2122 is B, where A = B. The thickness of the first end 2121 and the thickness of the second end 2122 are the same, which facilitates manufacturing.
[0050] In one embodiment, the first arc-shaped screen plate 212 includes a first high-manganese steel arc-shaped screen plate or a first alloy steel arc-shaped screen plate; and / or, the screening component 22 includes a high-manganese steel screening component 22 or an alloy steel screening component 22. Specifically, in this embodiment, the first arc-shaped screen plate 212 and the screening component 22 mainly perform screening functions. Both the first arc-shaped screen plate 212 and the screening component 22 are made of wear-resistant materials, which makes the first arc-shaped screen plate 212 and the screening component 22 exhibit excellent wear resistance when facing hard and abrasive materials, protecting the key components of screening, significantly extending the service life of the first arc-shaped screen plate 212 and the screening component 22, ensuring long-term stable operation, reducing the replacement frequency due to wear, reducing the risk of downtime maintenance, thereby reducing material consumption and labor maintenance costs. In addition, since the equipment operates more stably, the indirect losses caused by downtime due to failure are reduced, and the overall production cost is greatly reduced.
[0051] In this embodiment, to facilitate manufacturing and reduce the difficulty of material control, the structure and material of the second arc-shaped screen plate 213 can be the same as those of the first arc-shaped screen plate 212. The second arc-shaped screen plate 213 includes a second high-manganese steel arc-shaped screen plate or a second alloy steel arc-shaped screen plate. Since both the first arc-shaped screen plate 212 and the second arc-shaped screen plate 213 are made of wear-resistant materials, the overall wear resistance of the screen shaft 100 is improved, which not only improves the screening efficiency of the equipment, but also significantly reduces the difficulty and time consumption of maintenance and replacement of parts.
[0052] Please see Figure 7The present invention also proposes a roller screen 200, which includes a power mechanism (not shown in the figure) and a screen shaft 100. The specific structure of the screen shaft 100 is as described in the above embodiments. Since the roller screen 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The system comprises multiple screen shafts 100, with screen plate assemblies 2 staggered on any two adjacent screen shafts 100. The number of power mechanisms does not exceed the number of screen shafts 100. Each power mechanism is connected to at least one rotating shaft 1. Screen holes 210 are formed between any two adjacent rotating shafts 1 and any two adjacent screen plate assemblies 2 on the two rotating shafts 1. Specifically, the design of multiple screen shafts 100 increases the total screening area, allowing more material to be processed per unit time. The staggered arrangement of screen plate assemblies 2 on any two adjacent screen shafts 100 ensures that screen holes 210 are formed between any two adjacent rotating shafts 1 and any two adjacent screening components on the two rotating shafts 1. In this embodiment, the number of power mechanisms is consistent with the number of screen shafts 100, and they are arranged in a one-to-one correspondence. The transmission connection between the power mechanism and the screen shaft 100 ensures stable power transmission and enhances the mechanical strength and shock resistance of the entire system. The roller screen 200 can select screening components 22, first arc-shaped screen plates 212, and second arc-shaped screen plates 213 of different sizes according to actual operating requirements to adjust the size of the screen holes 210. To adapt to diverse screening tasks, when screening larger particle sizes, increasing the dimensions of the screening components 22, the first arc-shaped screen plate 212, and the second arc-shaped screen plate 213, and reducing the aperture of the screen holes 210, can significantly improve the screening efficiency and equipment load-bearing capacity of the roller screen 200. This helps the roller screen 200 process large particles more efficiently, reducing clogging and jamming, thereby improving production efficiency. Conversely, when screening fine particle sizes, reducing the dimensions of the screening components 22, the first arc-shaped screen plate 212, and the second arc-shaped screen plate 213 can... Enhanced screening precision and fineness ensure accurate and consistent screening results. Due to the flexible adjustment of the screening dimensions of the screen shaft 100, the roller screen 200 is widely used in screening operations for coal, ore, and various other materials. It can significantly improve equipment utilization and economic benefits while meeting diverse production needs. Whether in mining, metallurgy, or chemical production, the roller screen 200 provides efficient and reliable screening solutions, helping companies improve production efficiency, reduce operating costs, and achieve higher economic benefits.
[0053] Please see Figure 7In one embodiment, the number of power mechanisms corresponds to the number of screen shafts 100 and is arranged one-to-one. The two ends of the rotating shaft 1 are the third end 11 and the fourth end 12, respectively. Each power mechanism is drivenly connected to the third end 11 on the corresponding rotating shaft 1, and the third end 11 and the fourth end 12 of any two adjacent rotating shafts 1 are located on the same side. Specifically, the power mechanisms are arranged one-to-one with the screen shafts 100 and are directly drivenly connected to the first end 2121 of the rotating shaft 1, ensuring that each screen shaft 100 can obtain a stable and uniform power input. This helps all screen shafts 100 rotate synchronously, avoiding uneven material processing or equipment failure caused by asynchrony. If it is necessary to replace or repair a certain power mechanism, only... The operation of the corresponding screen shaft 100 does not affect the operation of other components, thus improving maintenance efficiency. The third end 11 and the fourth end 12 of any two adjacent rotating shafts 1 are located on the same side, ensuring the balance and stability of the entire roller screen 200 during operation. This allows the screen shaft 100 to bear the load more evenly, reducing vibration and noise caused by asymmetrical loads, extending the service life of the equipment, ensuring that the material can be evenly distributed on each screen plate assembly 2, reducing the possibility of clogging, and improving screening efficiency. The roller screen 200 can flexibly adjust the number of screen shafts 100 and the configuration of the power mechanism according to actual needs to adapt to different production scales and screening requirements, providing greater flexibility and adaptability.
[0054] Please see Figure 8 According to one embodiment of the present invention, the number of power mechanisms is consistent with the number of screen shafts 100 and is arranged in a one-to-one correspondence. The two ends of the rotating shaft 1 are the third end 11 and the fourth end 12, respectively. Each power mechanism is connected to the third end 11 on the corresponding rotating shaft 1. The third ends 11 of any two adjacent rotating shafts 1 are located on the same side, so that the power mechanisms can be arranged in a concentrated manner on one side of the screen shaft 100, saving installation space and facilitating inspection and maintenance.
[0055] Please see Figure 8 According to another embodiment of the present invention, the number of power mechanisms is less than the number of screen shafts 100. Each power mechanism is connected to at least one screen shaft 100, so that each power mechanism can provide power to at least one screen shaft 100. Reducing the number of power mechanisms directly reduces the manufacturing and installation costs of the equipment. Through reasonable transmission connections, the effective distribution and transmission of power are ensured, which not only improves the power utilization efficiency but also simplifies the complexity of the power system. The two ends of the rotating shaft 1 are the third end 11 and the fourth end 12, respectively. Each power mechanism is connected to the third end 11 on the corresponding rotating shaft 1. The third ends 11 of any two adjacent rotating shafts 1 are located on the same side, so that the power mechanisms can be centrally arranged on one side of the screen shaft 100, saving installation space and facilitating inspection and maintenance.
[0056] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A sieve shaft, characterized in that, The sieve shaft includes a rotating shaft and sieve plate assemblies. There are multiple sieve plate assemblies, which are spaced apart along the axial direction of the rotating shaft. Each sieve plate assembly includes sieve plate parts and screening components. There are at least two screening components, which are arranged sequentially along the circumference of the rotating shaft. The inner wall of each screening component is attached to the outer wall of the rotating shaft. The sieve plate parts are sleeved on the outer wall of the rotating shaft, and the inner wall of the sieve plate parts is connected to the outer wall of the rotating shaft. The screening components are connected to the sieve plate parts.
2. The sieve shaft as described in claim 1, characterized in that, The screening component includes a first connecting part and a second connecting part that are connected to each other. The outer diameter of the first connecting part does not exceed the outer diameter of the second connecting part. The inner walls of the first connecting part and the second connecting part are both attached to the outer wall of the rotating shaft. The side of the second connecting part away from the first connecting part is connected to the screen plate component.
3. The sieve shaft as described in claim 2, characterized in that, The first connecting part is provided with a welding hole, and the first connecting part is welded to the outer wall of the rotating shaft through the welding hole.
4. The sieve shaft as described in claim 1, characterized in that, At least two of the screening elements are spaced apart along the outer wall of the rotating shaft, and the sum of the dimensions of the inner walls of the at least two screening elements extending circumferentially along the rotating shaft is 70% to 80% of the outer circumference of the outer wall of the rotating shaft.
5. The sieve shaft as described in claim 1, characterized in that, The sieve component includes an elliptical sieve and a first arc-shaped sieve. The elliptical sieve is sleeved on the outer wall of the rotating shaft, and the inner wall of the elliptical sieve is connected to the outer wall of the rotating shaft. The screening component is connected to the elliptical sieve. The two sides of the elliptical sieve along its minor axis are respectively a first mounting position and a second mounting position. The first arc-shaped sieve is disposed at the first mounting position and is attached to the outer wall of the elliptical sieve.
6. The sieve shaft as described in claim 5, characterized in that, The sieve component further includes a second arc-shaped sieve, which is disposed at the second mounting position.
7. The sieve shaft as described in claim 5, characterized in that, The first arc-shaped sieve has a first end and a second end on both sides along the radial direction of the rotation axis. The first end is attached to the outer wall of the elliptical sieve. The thickness of the first end is defined as A and the thickness of the second end is defined as B. Then, A ≤ B.
8. The sieve shaft as described in claim 5, characterized in that, The first arc-shaped screen plate includes a first high-manganese steel arc-shaped screen plate or a first alloy steel arc-shaped screen plate; And / or, The screening components include high manganese steel screening components or alloy steel screening components.
9. A roller screen, characterized in that, The roller screen includes a power mechanism and a screen shaft as described in any one of claims 1 to 8. The number of screen shafts is multiple, and the screen plate assemblies on any two adjacent screen shafts are staggered. The number of power mechanisms does not exceed the number of screen shafts. Each power mechanism is drivenly connected to at least one of the rotating shafts. Screen holes are formed between any two adjacent rotating shafts and any two adjacent screen plate assemblies located on the two rotating shafts.
10. The roller screen as described in claim 9, characterized in that, The number of power mechanisms is the same as the number of screen shafts and they are set in a one-to-one correspondence. The two ends of the rotating shaft are the third end and the fourth end, respectively. Each power mechanism is connected to the third end on the corresponding rotating shaft. The third end and the fourth end of any two adjacent rotating shafts are located on the same side.