Sieve plate for crusher and crusher

Abstract

The utility model relates to the technical field of screen structures of crushing equipment, and discloses a sieve plate for a crusher and the crusher, the sieve plate comprises an arc-shaped plate body, the arc-shaped plate body is provided with a material inlet surface and a material outlet surface, and the material outlet surface is provided with a plurality of supporting and positioning components; every two adjacent supporting and positioning assemblies are oppositely arranged in the length direction of the arc-shaped plate body, and / or every two adjacent supporting and positioning assemblies are oppositely arranged in the width direction of the arc-shaped plate body. The arc-shaped plate body is fixed and positioned through abutting and limiting of the oppositely-arranged supporting and positioning assemblies and the peripheral structure. By improving the structural design and the fixing mode of the sieve plate, the problems that the sieve plate is abraded, is not firmly fixed, is improperly assembled and the like are effectively solved, the durability, the replacement convenience and the sieving efficiency of the sieve plate are improved, meanwhile, the maintenance and cleaning processes are simplified, and a powerful guarantee is provided for stable operation and efficient production of the crusher.

Description

Technical Field

[0001] This utility model relates to the technical field of screen structure for crushing equipment, and in particular, to a screen plate for a crusher. Furthermore, this utility model also relates to a crusher including the aforementioned screen plate. Background Technology

[0002] A crusher is a highly efficient crushing equipment that combines multiple crushing methods such as impact, shearing, and roller pressing to achieve simultaneous crushing and screening. It can continuously crush and impact materials, and some crushers can also use built-in pushing devices to continuously push unqualified particles forward until they reach the required particle size.

[0003] The screen plate of a crusher is a key component for effective material screening. It refines materials by simultaneously crushing and screening them. The maintenance and replacement of the screen plate need to be convenient and quick to reduce downtime and operating costs.

[0004] Currently, crusher screen plates have the following problems in practical applications:

[0005] 1. After prolonged use, the screen plate will wear down due to the impact and friction of the material, and in severe cases, the screen plate may even be perforated.

[0006] 2. If the screen plate is not securely fixed during the operation of the vibrating screen, it may shift or loosen, affecting the screening effect.

[0007] 3. Improper assembly of the sieve plate may lead to poor screening effect.

[0008] 4. The screen plate is inconvenient to install and takes a lot of time and effort to disassemble and assemble; moreover, the screen plate is generally made of casting, and it is difficult to meet the design requirements during installation. Utility Model Content

[0009] This utility model provides a screen plate for a crusher and a crusher to solve the technical problems of existing screen plates, such as inconvenience in replacement, difficulty in assembly, and unstable structure after assembly.

[0010] According to one aspect of this utility model, a screen plate for a crusher is provided, comprising an arc-shaped plate body having a material inlet surface and a material outlet surface, and a plurality of support and positioning components being provided on the material outlet surface; adjacent sets of support and positioning components are arranged opposite to each other in the length direction of the arc-shaped plate body, and / or adjacent sets of support and positioning components are arranged opposite to each other in the width direction of the arc-shaped plate body. The arc-shaped plate body is fixedly positioned by the oppositely arranged support and positioning components respectively abutting and limiting the surrounding structure.

[0011] Furthermore, the two sets of support and positioning components are arranged at an angle to each other.

[0012] Furthermore, the included angle between the two sets of support and positioning components arranged opposite to each other is 60° to 120°.

[0013] Furthermore, the support positioning component includes a support positioning block, or the support positioning component includes multiple parallel and spaced support positioning blocks; the free ends of the support positioning blocks are inclined toward the direction of the nearest edge on the curved plate.

[0014] Furthermore, the end face of the free end of the support positioning block of the support positioning component has a first plane and a second plane, the first plane and the second plane are arranged at an angle and combined to form a polygonal surface.

[0015] Furthermore, the arc-shaped plate has multiple sieve holes, which are bidirectionally connected to the material inlet and material outlet surfaces.

[0016] Furthermore, multiple sieve holes are arranged in an array; or multiple sieve holes are arranged in a staggered manner along the length and / or width of the arc-shaped plate.

[0017] Furthermore, the radial dimension of the sieve aperture gradually increases from the material inlet surface to the material outlet surface.

[0018] Furthermore, the screen holes and the support positioning blocks of the support positioning assembly are arranged in a staggered manner; the area on the material inlet surface opposite to the support positioning blocks is the support positioning surface.

[0019] According to another aspect of the present invention, a crusher is also provided, which includes the above-mentioned crusher screen plate.

[0020] This utility model has the following beneficial effects:

[0021] This utility model relates to a screen plate for crushers. Designed as an arc-shaped plate, it matches the internal crushing mechanism of the crusher, improving crushing and screening efficiency. Multiple support and positioning components are installed on the material outlet surface of the arc-shaped plate. These components do not affect material crushing but effectively support the screen plate and reduce direct impact from materials, thus extending its service life. The relative arrangement of the support and positioning components facilitates rapid assembly, positioning, and fixing of the screen plate, simplifying the replacement process, reducing downtime, and improving production efficiency. This screen plate positioning and fixing method can accommodate unique arrangements where some crushers require a 360° screen plate configuration, and also allows for multiple screen plate configurations. The screen plate can be flexibly adjusted in sections and segments, while also solving problems caused by wear from internal and external factors. The use of relatively arranged support and positioning components, along with the top-stopping limit of the surrounding structure, partially offsets external forces after positioning, ensuring the stability of the arc-shaped plate during operation and preventing displacement or loosening due to insecure fixing. This guarantees the consistency and reliability of the screening effect. By improving the structural design and fixing method of the screen plate, problems such as screen plate wear, insecure fixing, and improper assembly are effectively solved, improving the durability, ease of replacement, and screening efficiency of the screen plate. It also simplifies maintenance and cleaning processes, providing a strong guarantee for the stable operation and efficient production of the crusher.

[0022] Existing screen plates, which use cast holes and bolts for fixation, are difficult to install due to the inconsistent dimensions of the cast holes. Furthermore, disassembly requires removing the bolts from the bottom of the screen plate, which is inconvenient. If a semi-circular end face is used to press the screen plate, it results in a semi-circular shape that cannot be divided into several flexible sections for individual adjustment. However, this new crusher screen plate, using a support and positioning assembly, eliminates the need for cast holes during casting, relying instead on bolts for fixation. This simplifies both casting and installation, and eliminates the need for workers to crawl under the crusher for disassembly. Additionally, the screen plate can be easily divided into several sections within a 360° cylinder, and each section can be independently adjusted inwards or outwards, thereby increasing or decreasing the gap between the inner hole and the hammer.

[0023] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0025] Figure 1 This is a cross-sectional structural diagram of a screen plate for a crusher according to a preferred embodiment of the present invention;

[0026] Figure 2 This is a top view of the screen plate for a crusher according to a preferred embodiment of the present invention.

[0027] Legend:

[0028] 100. Arc-shaped plate; 101. Material inlet surface; 102. Material outlet surface; 200. Support and positioning component; 201. Support and positioning block; 2011. First plane; 2012. Second plane; 300. Screen hole; 400. Support and positioning surface. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0030] Figure 1 This is a cross-sectional structural diagram of a screen plate for a crusher according to a preferred embodiment of the present invention; Figure 2 This is a top view of the screen plate for a crusher according to a preferred embodiment of the present invention.

[0031] like Figure 1 and Figure 2As shown, the screen plate for the crusher in this embodiment includes an arc-shaped plate body 100. The arc-shaped plate body 100 has a material inlet surface 101 and a material outlet surface 102. A plurality of support and positioning components 200 are provided on the material outlet surface 102. Two adjacent sets of support and positioning components 200 are arranged opposite to each other in the length direction of the arc-shaped plate body 100, and / or two adjacent sets of support and positioning components 200 are arranged opposite to each other in the width direction of the arc-shaped plate body 100. The arc-shaped plate body 100 is fixedly positioned by the oppositely arranged support and positioning components 200 respectively abutting and limiting the surrounding structure. This utility model relates to a screen plate for a crusher. The screen plate is designed in an arc shape (100) to match the internal crushing mechanism of the crusher, improving both crushing and screening efficiency. Multiple support and positioning components (200) are installed on the material outlet surface (102) of the arc shape (100). These components do not affect material crushing but effectively support the screen plate and reduce direct impact from materials, thus extending its service life. The relative arrangement of the support and positioning components (200) facilitates rapid assembly, positioning, and fixing of the screen plate, simplifying the replacement process, reducing downtime, and improving production efficiency. This screen plate positioning and fixing method can accommodate unique arrangements where some crushers require a 360° screen plate configuration, while also enabling... The screen plate can be flexibly adjusted in multiple locations and small sections, while also solving problems caused by wear from internal and external factors. The relatively arranged support and positioning components 200, along with the surrounding structure's top-stop limiting mechanism, partially offset external forces after positioning, ensuring the stability of the arc-shaped plate 100 during operation and preventing screen plate shifting or loosening due to insecure fixing. This guarantees consistent and reliable screening results. By improving the screen plate's structural design and fixing method, problems such as screen plate wear, insecure fixing, and improper assembly are effectively solved, improving the screen plate's durability, ease of replacement, and screening efficiency. It also simplifies maintenance and cleaning processes, providing strong support for the stable operation and efficient production of the crusher. Optionally, a wear-resistant layer is attached to the material inlet surface 101. Existing screen plates, which use cast holes and bolts for fixation, are difficult to install due to the inconsistent dimensions of the cast holes. Furthermore, disassembly requires removing the bolts from the bottom of the screen plate, which is inconvenient. Using a semi-circular end face to press the screen plate makes it too small to be divided into several flexible sections for individual adjustment. However, this new crusher screen plate, with its support and positioning assembly 200, eliminates the need for cast holes during casting, relying instead on bolts for fixation. This simplifies both casting and installation, eliminating the need for workers to crawl under the crusher for disassembly. Additionally, the screen plate can be easily divided into several sections within a 360° cylinder, and each section can be independently adjusted inwards or outwards to increase or decrease the gap between the inner hole and the hammer.

[0032] like Figure 1 and Figure 2 As shown in this embodiment, the two sets of support and positioning components 200 are arranged at an angle to each other. The angled arrangement of the support and positioning components 200 provides more stable support, limiting the displacement of the arc-shaped plate 100 in multiple directions, thereby reducing vibration and offset of the screen plate during operation and improving screening accuracy and efficiency. It can more accurately position the arc-shaped plate 100, ensuring accurate installation of the screen plate, which is crucial for screening performance, especially for materials with strict particle size requirements. It can reduce the direct impact of materials on the screen plate, dispersing the impact force and extending the service life of the screen plate. It simplifies the assembly and maintenance process of the screen plate, making screen plate replacement more convenient and quick, reducing downtime and improving production efficiency. It increases the overall rigidity of the screen plate, preventing deformation under high-load working conditions and ensuring the stability and reliability of the screening process. It facilitates material flow, reducing material accumulation on the screen plate, thereby reducing the risk of material clogging the screen holes 300 and improving screening efficiency. The supporting positioning components 200 are arranged at an angle to each other, which can effectively solve technical problems such as screen plate wear, insecure fixing and improper assembly, improve the stability, positioning accuracy, service life and screening efficiency of the screen plate, and also simplify the maintenance and cleaning process.

[0033] like Figure 1 and Figure 2As shown in this embodiment, the included angle between the two sets of support and positioning components 200 arranged opposite each other is 60° to 120°. The design of the included angle between the two sets of support and positioning components 200 ensures the stability of the arc-shaped plate 100 in multiple directions, reduces vibration and offset of the screen plate during operation, improves screening accuracy and efficiency, and enhances the consistency and reliability of screening results. A suitable included angle can reduce the direct impact of materials on the screen plate, disperse the impact force of materials on the screen plate, thereby extending the service life of the screen plate. The included angle design simplifies the assembly and maintenance process of the screen plate, making screen plate replacement more convenient and quick, reducing downtime, and improving production efficiency. When the included angle between the two sets of support and positioning components 200 is less than 60°, the angle between the support and positioning component 200 and the edge of the arc-shaped plate 100 is large. The support and positioning component 200 cannot function as a fixed positioner, and the external force it receives will be transformed into a force that forces the screen plate to detach. This significantly reduces the stability of the arc-shaped plate 100, making it more susceptible to vibration and potentially causing the screen plate to fall off. Consequently, screening efficiency decreases, screening capacity declines, and the entire crusher may even malfunction. When the included angle between the two sets of support and positioning components 200 is greater than 120°, the angle between the support and positioning component 200 and the edge of the arc-shaped plate 100 is small, affecting the stability of the screen plate. An excessively large angle may intensify vibration during operation, impacting the screening effect. The included angle between the support and positioning components 200 is selected within the range of 60° to 120° to balance the relationship between material flow efficiency, screening efficiency, and screen plate stability, ensuring that the screen plate can effectively perform material screening.

[0034] like Figure 1 and Figure 2As shown, in this embodiment, the support positioning component 200 includes a support positioning block 201, or the support positioning component 200 includes multiple parallel and spaced support positioning blocks 201. The free ends of the support positioning blocks 201 are inclined toward the nearest edge on the arc-shaped plate 100, which helps to form a stable and fixed positioning clamping space and improve the structural stability of the screen plate. Multiple parallel and spaced support positioning blocks 201 can provide a more uniform support force, reducing the vibration and deformation of the screen plate under high-load working conditions. This uniformly distributed support structure helps to improve the overall rigidity and durability of the screen plate and extend its service life. Optionally, the free ends of the support positioning blocks 201 are inclined toward the nearest edge on the arc-shaped plate 100. The inclined support positioning blocks 201 can form a clamping space, which can simplify the assembly and maintenance process of the screen plate. When the screen plate needs to be replaced or repaired, this design makes it easier for workers to disassemble and install the screen plate, reducing maintenance time and labor intensity. By precisely controlling the inclination angle and position of the support positioning blocks 201, the uniform distribution and effective screening of materials on the screen plate can be ensured, thereby improving screening accuracy. This is especially important for application scenarios that require strict control of material particle size.

[0035] like Figure 1 and Figure 2 As shown in this embodiment, the free end face of the support positioning block 201 of the support positioning component 200 has a first plane 2011 and a second plane 2012. The first plane 2011 and the second plane 2012 are arranged at an angle and combined to form a polygonal surface. The design concept of the polygonal surface can enhance the stability of positioning by providing support in multiple directions. This design can ensure that the support positioning block 201 can provide a more balanced and stable support force when subjected to force at different angles, reducing the vibration and deformation of the screen plate under high-load working conditions, thereby extending the service life of the screen plate; it can disperse the impact force of materials on the screen plate, reducing the direct impact of materials on the screen plate, thereby reducing the wear rate of the screen plate and extending the service life of the screen plate; it can simplify the assembly and maintenance process of the screen plate. When the screen plate needs to be replaced or repaired, this design can make it easier for workers to disassemble and install the screen plate, reducing maintenance time and labor intensity.

[0036] like Figure 1 and Figure 2As shown, in this embodiment, the arc-shaped plate 100 is provided with a plurality of sieve holes 300, which bidirectionally pass through the material inlet surface 101 and the material outlet surface 102. The bidirectional through-hole design of the screen aperture 300 allows the crushed material to enter from the material inlet face 101 and smoothly exit from the material outlet face 102, thus achieving screening after crushing. This through-hole design reduces the residence time of the material in the screen plate and improves the screening efficiency. The arrangement of multiple screen apertures 300 helps to evenly distribute the material on the arc-shaped plate 100, which can reduce local overload and avoid screen plate wear or damage caused by material concentration. The design of the screen aperture 300 helps to control the flow direction and speed of the material, allowing the material to pass through the screen aperture 300 more smoothly, reducing clogging and improving the smoothness of screening. The bidirectional through-hole screen aperture 300 facilitates the cleaning of the screen plate, as clogged material can be removed from either the inlet or outlet face, which simplifies maintenance and reduces downtime caused by cleaning the screen aperture 300. The size and distribution of the screen aperture 300 can be designed according to the particle size requirements of the material to ensure that only materials that meet the specifications can pass through the screen aperture 300, thereby achieving accurate material classification. Optionally, considering wear resistance, a wear-resistant layer can be attached to the edge of the screen aperture 300 for reinforcement to resist wear during long-term screening and extend the service life of the screen plate.

[0037] like Figure 1 and Figure 2As shown, in this embodiment, multiple screen holes 300 are arranged in an array; or multiple screen holes 300 are arranged in a staggered manner along the length and / or width of the arc-shaped plate 100. The array arrangement of the screen holes 300 can ensure that the material is evenly distributed across the entire screen surface, thereby improving screening efficiency. The effective area refers to the ratio of the area occupied by the pure screen holes 300 of the screen plate to the geometric area of ​​the screen surface, also known as the effective screen surface. The larger the effective area of ​​the screen plate, the more screen holes 300 there are per unit screen surface, and the greater the probability of material passing through the screen holes 300. Therefore, its production capacity and screening efficiency are higher. The evenly distributed screen holes 300 can reduce local overload and avoid screen plate wear or damage caused by material concentration, thereby extending the service life of the screen plate. The staggered arrangement of the screen holes 300 reduces material accumulation and clogging on the screen holes 300 because this arrangement facilitates continuous material flow and reduces the residence time of material on the screen surface. The staggered arrangement of the screen holes 300 helps to break up any clumps or clusters that may form during material flow, thereby promoting smooth material flow and improving screening efficiency. Both arrayed and staggered arrangement of the screen holes 300 allows for more precise control of material grading, ensuring that only materials meeting specifications can pass through the screen holes 300, thus improving screening accuracy. The regularity of the arrayed screen holes 300 facilitates mechanical or automated cleaning, while the staggered arrangement reduces the density of the screen holes 300 in localized areas, thus reducing cleaning difficulty. The array or staggered arrangement of the sieve holes 300 mainly serves to improve screening efficiency, reduce clogging of the sieve holes 300, enhance material flow, improve material classification accuracy, facilitate cleaning and maintenance, improve the durability of the sieve plate, and ensure high efficiency and reliability of the screening process.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, the radial dimension of the screen aperture 300 gradually increases from the material inlet surface 101 to the material outlet surface 102. This gradual increase in aperture size helps allow materials meeting particle size requirements to pass through quickly, reducing material accumulation and clogging, thus improving overall screening efficiency and reducing downtime and maintenance costs associated with cleaning the apertures. The increased aperture size also helps disperse the impact force of the material on the screen surface, reducing wear on the edges of the apertures and extending the service life of the screen plate. Furthermore, the increased flow velocity of the material on the screen surface due to the larger aperture size helps improve the material's throughput, especially when processing materials with high moisture content or high viscosity. This design reduces material adhesion to the screen surface, improving screening efficiency.

[0039] like Figure 1 and Figure 2As shown, in this embodiment, the sieve holes 300 and the support positioning blocks 201 of the support positioning assembly 200 are staggered. The staggered arrangement of the sieve holes 300 reduces mutual interference between materials during the screening process, allowing materials to pass through the sieve holes 300 more smoothly, thereby improving screening efficiency. Simultaneously, this design helps improve screening accuracy because it can more effectively separate materials of different particle sizes. The staggered arrangement of the sieve holes 300 helps prevent material accumulation at the sieve holes 300, thereby reducing the possibility of clogging, which is beneficial for improving screening efficiency and reducing maintenance time. The staggered arrangement of the sieve holes 300 facilitates material grading, allowing materials of different particle sizes to flow along predetermined paths, thereby achieving a more precise grading effect. The area on the material inlet surface 101 opposite to the support positioning block 201 is the support positioning surface 400. The support positioning surface 400 provides a stable support point for the material, contributing to the uniform distribution and flow of the material on the sieve plate. This design reduces uneven material distribution on the screen surface, improving screening uniformity and efficiency. The relative design of the support positioning block 201 and the support positioning surface 400 helps improve the structural stability of the screen plate, reducing vibration and deformation during operation, thereby improving the consistency and reliability of screening results. The staggered arrangement of the screen holes 300 and the support positioning block 201, along with the design of the support positioning surface 400 on the material inlet surface 101, work together to improve screening efficiency, reduce screen hole clogging, enhance material flow, improve material grading, reduce wear and maintenance costs, and improve structural stability, collectively ensuring the high efficiency and reliability of the screening process.

[0040] The crusher in this embodiment includes the screen plate for crushing described above.

[0041] Any matters not covered in this utility model are common knowledge.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A screen plate for a crusher, characterized in that, It includes an arc-shaped plate (100), which has a material inlet surface (101) and a material outlet surface (102), and multiple support and positioning components (200) are provided on the material outlet surface (102). Two adjacent sets of support positioning components (200) are arranged opposite each other in the length direction of the arc-shaped plate (100), and / or two adjacent sets of support positioning components (200) are arranged opposite each other in the width direction of the arc-shaped plate (100).

2. The screen plate for a crusher according to claim 1, characterized in that, The two sets of support and positioning components (200) are arranged at an angle to each other.

3. The screen plate for a crusher according to claim 2, characterized in that, The included angle between the two sets of support positioning components (200) arranged opposite each other is 60°~120°.

4. The screen plate for a crusher according to claim 2, characterized in that, The support positioning component (200) includes a support positioning block (201), or the support positioning component (200) includes a plurality of parallel and spaced support positioning blocks (201). The free end of the support positioning block (201) is inclined toward the nearest edge on the arc-shaped plate (100).

5. The screen plate for a crusher according to any one of claims 1 to 4, characterized in that, The end face of the free end of the support positioning block (201) of the support positioning assembly (200) has a first plane (2011) and a second plane (2012). The first plane (2011) and the second plane (2012) are arranged at an angle and combined to form a broken line surface.

6. The screen plate for a crusher according to any one of claims 1 to 4, characterized in that, Multiple sieve holes (300) are provided on the arc-shaped plate (100). The sieve hole (300) is bidirectionally connected to the material inlet face (101) and the material outlet face (102).

7. The screen plate for a crusher according to claim 6, characterized in that, Multiple sieve holes (300) are arranged in an array; or Multiple sieve holes (300) are staggered in the length and / or width direction of the arc-shaped plate (100).

8. The screen plate for a crusher according to claim 6, characterized in that, The radial dimension of the sieve aperture (300) gradually increases from the material inlet face (101) to the material outlet face (102).

9. The screen plate for a crusher according to claim 6, characterized in that, The sieve holes (300) and the support positioning blocks (201) of the support positioning assembly (200) are arranged in a staggered manner; The area on the material inlet surface (101) opposite to the support positioning block (201) is the support positioning surface (400).

10. A crusher, characterized in that, The crusher screen plate includes any one of claims 1 to 9.

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