Crushing cavity assembly and vertical shaft impact crusher

Abstract

The utility model relates to the technical field of sandstone aggregate production and sand making equipment, in particular to a crushing cavity assembly and a vertical shaft impact crusher, which comprise an annular base consisting of a bottom plate, a top plate and an anvil cavity ring connected to the outer side edges of the bottom plate and the top plate, the anvil cavity ring covers the exterior of the anvil assembly so as to guide materials to be collided and crushed for multiple times in the cavity; the anvil assemblies are arranged in the circumferential direction of the annular base, and each anvil assembly comprises columnar wear-resistant anvils; wherein the upper end and the lower end of the anvil assembly are fixedly connected to a bottom plate and a top plate of the annular base respectively, the angle of the columnar wear-resisting anvil can be adjusted in the circumferential direction when the columnar wear-resisting anvil is installed on the annular base, and the columnar wear-resisting anvil is limited in the circumferential direction after being fixedly connected. The scheme has the advantages of improving the wear resistance of the anvil, prolonging the service life, reducing the maintenance cost and improving the crushing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of sand and gravel aggregate production and sand making equipment, and in particular to a crushing chamber assembly and a vertical shaft impact crusher. Background Technology

[0002] Vertical shaft impact crushers are core equipment in sand and gravel aggregate production and sand making processes. They use a high-speed rotating rotor to propel material onto anvil assemblies within the crushing chamber, utilizing impact force to crush and shape the material. Traditional crushing chambers typically employ a fixed anvil structure, where the anvil directly bears the continuous impact of the material. Over time, this leads to wear and failure, resulting in frequent replacements and increased maintenance costs. The wear rate of the anvil differs significantly between stone-on-stone (direct collision between the anvil and material) and stone-on-stone (collision between materials) modes. Furthermore, current technologies often employ a single-structure design for the anvil, preventing flexible mode switching or reuse based on operating conditions, thus wasting resources.

[0003] Currently, some crushing chambers on the market attempt to improve wear resistance by optimizing the anvil material (such as high-chromium cast iron), but the following problems still exist: conventional anvils can only work on one side, and the whole anvil needs to be replaced after one side is worn, and it cannot be reused by adjustment; the circumferential angle of the anvil is fixed after installation, and the impact surface cannot be adjusted according to the material characteristics or crushing requirements, resulting in excessive local wear; the crushing chamber is complicated to disassemble, and the replacement of the anvil requires machine shutdown and consumes a lot of time, affecting production efficiency.

[0004] In addition, the material flow path design of the existing crushing chamber is relatively simple, making it difficult to achieve multiple collision crushing. The particle shape and gradation control accuracy of the finished sand is insufficient, making it difficult to meet the production requirements of high-quality manufactured sand.

[0005] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0006] To address the aforementioned problems, the present invention aims to provide a crushing chamber assembly and a vertical shaft impact crusher, which has the advantages of improving the wear resistance of the anvil, extending its service life, reducing maintenance costs, and increasing crushing efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This application provides a crushing chamber assembly with the following technical solution: it includes an annular base, which is composed of a bottom plate, a top plate, and an anvil chamber ring connected to the outer edges of the bottom plate and the top plate. The anvil chamber ring covers the outside of the anvil assembly to guide the material to be crushed by multiple collisions within the chamber. Multiple sets of anvil assemblies are arranged circumferentially along the annular base, and each set of anvil assemblies includes a columnar wear-resistant anvil. The upper and lower ends of the anvil assembly are respectively fixed to the bottom plate and the top plate of the annular base, and the columnar wear-resistant anvil can be circumferentially adjusted in angle when installed on the annular base, but is restricted circumferentially after being fixed.

[0009] Furthermore, this application also proposes that the bottom plate of the annular base is provided with a lower insertion hole; the lower end of the columnar wear-resistant anvil is inserted into the lower insertion hole, and circumferential fixation is achieved through the circumferential limiting structure of the lower insertion hole.

[0010] Furthermore, this application also proposes that the inner edge of the top plate is provided with an open clearance hole; the anvil assembly also includes a pressure plate, the pressure plate is fixed to the top plate and is provided with an upper insertion hole; the upper end of the columnar wear-resistant anvil is inserted into the upper insertion hole and is circumferentially fixed by the circumferential limiting structure of the upper insertion hole.

[0011] Furthermore, this application also proposes that the anvil assembly includes at least two columnar wear-resistant anvils; the pressure plate is provided with a plurality of upper insertion holes matching the number of columnar wear-resistant anvils; when the pressure plate is fixed to the top plate, its plurality of upper insertion holes cover the adjacent clearance holes of the top plate, and the upper and lower ends of each columnar wear-resistant anvil are respectively inserted into the corresponding lower insertion hole and upper insertion hole.

[0012] Furthermore, this application also proposes that the top plate and the pressure plate are provided with corresponding through holes; the pressure plate is fixedly connected to the top plate by a screw assembly passing through the through hole.

[0013] Furthermore, this application also proposes that the annular base is formed by the annular connection of multiple base ring units, and the annular base has a notch in the circumferential direction to correspond to the observation cavity.

[0014] Furthermore, this application also proposes that both the lower insertion hole and the upper insertion hole are rectangular holes; the upper and lower ends of the columnar wear-resistant anvil are provided with rectangular protrusions; the circumferential orientation of the columnar wear-resistant anvil is adjusted by the assembly angle of the rectangular protrusions and the rectangular holes, and circumferential restriction is achieved after insertion.

[0015] Furthermore, this application also proposes that the columnar wear-resistant anvil is made of round high-chromium cast iron.

[0016] Furthermore, this application also proposes that the clearance hole is an arc-shaped hole or a semi-circular hole provided on the inner edge of the top plate.

[0017] Furthermore, this application also proposes a vertical shaft impact crusher, including the above-mentioned crushing chamber assembly, which is fixedly connected to the frame; and a rotor assembly disposed inside the crushing chamber assembly, wherein the material thrown out by the rotor assembly when rotating can impact the crushing chamber assembly for crushing.

[0018] As can be seen from the above, the crushing chamber assembly and vertical shaft impact crusher provided in this application achieve adjustable anvil angle through the structural design of the annular base, anvil assembly and columnar wear-resistant anvil, which extends the service life of the anvil, reduces maintenance costs, and improves crushing efficiency. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a crushing chamber assembly provided in this application.

[0020] Figure 2 The present application provides a schematic diagram of the annular base.

[0021] Figure 3 The diagram provided for this application is a bottom view of the annular base.

[0022] Figure 4 This is a schematic diagram of the pressure plate structure.

[0023] Figure 5 This is a schematic diagram of a vertical shaft impact crusher. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example 1

[0029] like Figure 1-4As shown, this application proposes a crushing chamber assembly, including an annular base 10 and multiple sets of anvil assemblies 20. The annular base 10 consists of a bottom plate 11, a top plate 12, and an anvil chamber ring 13 connecting the outer edges of the bottom plate 11 and the top plate 12. The anvil chamber ring 13 covers the outside of the anvil assembly 20 to guide the material to be crushed by multiple collisions within the chamber. Multiple sets of anvil assemblies 20 are arranged circumferentially along the annular base 10, and each set of anvil assembly 20 includes a columnar wear-resistant anvil 21. The upper and lower ends of the anvil assembly 20 are respectively fixed to the bottom plate 11 and the top plate 12 of the annular base 10, and the columnar wear-resistant anvil 21 can be circumferentially adjusted in angle when installed on the annular base 10, but is restricted circumferentially after fixing. The technical solution of this application solves the technical problems of rapid wear, frequent replacement, and low material crushing efficiency of the anvil assembly 20 in the crushing chamber assembly through the structural design of the annular base 10 and the anvil assembly 20. The annular base 10, through the structural design of the bottom plate 11, top plate 12, and anvil chamber ring 13, provides stable support and a material flow path. The anvil chamber ring 13 covers the anvil assembly 20, guiding the material to collide multiple times within the chamber, thus improving crushing efficiency. Multiple sets of anvil assemblies 20 are arranged circumferentially along the annular base 10. Each set includes a columnar wear-resistant anvil 21. The upper and lower ends of the anvil assembly 20 are fixed to the bottom plate 11 and top plate 12 of the annular base 10, respectively, ensuring the stability and durability of the anvil assembly 20. The columnar wear-resistant anvil 21 can be circumferentially adjusted during installation, and its circumferential direction is restricted after fixing, allowing the anvil assembly 20 to adjust the impact surface according to material characteristics or crushing requirements, reducing localized excessive wear and extending service life. Furthermore, the new crushing chamber uses columnar wear-resistant anvils 21, resulting in a longer single-cycle service life. After one side of the columnar wear-resistant anvil 21 is damaged in a cycle, the other side can be symmetrically adjusted to form a second service cycle. Therefore, the technical solution of this application improves crushing efficiency while significantly reducing maintenance costs and extending the service life of the anvil assembly 20.

[0030] like Figure 2In a further embodiment, the bottom plate 11 of the annular base 10 is provided with a lower insertion hole 111; the lower end of the columnar wear-resistant anvil 21 is inserted into the lower insertion hole 111 and is circumferentially fixed by the circumferential limiting structure of the lower insertion hole 111. The circumferential limiting structure of the lower insertion hole 111 can be achieved by protrusions, grooves, or keyways on the hole wall, ensuring that the columnar wear-resistant anvil 21 cannot rotate circumferentially after insertion. Specifically, the shape of the lower insertion hole 111 can be polygonal or a slot with a specific angle, matching the shape of the lower end of the columnar wear-resistant anvil 21, thereby achieving circumferential limiting. As another preferred embodiment, the circumferential limiting structure of the lower insertion hole 111 can be achieved by setting multiple symmetrically distributed limiting blocks in the hole, with the lower end of the columnar wear-resistant anvil 21 having a groove corresponding to the limiting block; after insertion, it is fixed by the cooperation of the groove and the limiting block. By setting a circumferential limiting structure within the lower insertion hole 111, the lower end of the columnar wear-resistant anvil 21 can be circumferentially fixed after insertion, ensuring its stable position on the annular base 10 and avoiding the problem of insecure fixation due to circumferential movement. This design not only improves the installation accuracy of the anvil but also enhances its stability during operation, thus effectively solving the technical problem of insecure circumferential fixation of the anvil. Compared with existing technologies, this solution achieves reliable fixation of the anvil through simple structural improvements, reducing equipment failures and maintenance costs caused by anvil loosening or displacement, while improving the working efficiency and durability of the crushing chamber.

[0031] Furthermore, the inner edge of the top plate 12 is provided with an open clearance hole 121; the anvil assembly 20 also includes a pressure plate 40, which is fixed to the top plate 12 and is provided with an upper insertion hole 401; the upper end of the columnar wear-resistant anvil 21 is inserted into the upper insertion hole 401 and is circumferentially fixed by the circumferential limiting structure of the upper insertion hole 401. Specifically, the pressure plate 40 is fixedly connected to the top plate 12 by a screw assembly 50, and the pressure plate 40 is provided with a plurality of upper insertion holes 401 matching the number of columnar wear-resistant anvils 21, each upper insertion hole 401 covering the adjacent clearance hole 121 of the top plate 12.

[0032] Furthermore, the clearance hole 121 is an arc-shaped or semi-circular hole located on the inner edge of the top plate 12. This arc-shaped or semi-circular hole design better accommodates the installation and disassembly requirements of the anvil assembly 20, improving maintenance efficiency. Specifically, the opening of the arc-shaped or semi-circular hole faces the inner edge of the top plate 12, allowing for more flexible position adjustment of the anvil assembly 20 during installation and easier disassembly, reducing maintenance time and costs. As a preferred embodiment, the radius of the arc-shaped hole can be optimized according to the dimensions of the anvil assembly 20 to ensure smooth passage during installation and disassembly. In addition, the design of the semi-circular hole can be adjusted according to actual needs, for example, using semi-circular holes of different angles to accommodate anvil assemblies 20 of different sizes. Thus, this technical solution solves the technical problem of inconvenient installation and maintenance of the anvil assembly 20 through the arc-shaped or semi-circular design of the clearance hole 121. Compared with the prior art, this design not only simplifies the installation and disassembly process of the anvil assembly 20 but also improves maintenance efficiency and reduces production losses caused by maintenance downtime. Specifically, the design of the arc-shaped or semi-circular hole allows the anvil assembly 20 to be positioned more flexibly during installation, avoiding the installation difficulties caused by the unreasonable shape of the clearance hole 121 in traditional designs. At the same time, the design of the arc-shaped or semi-circular hole also allows the anvil assembly 20 to be removed more quickly and conveniently during disassembly, further reducing maintenance costs.

[0033] Furthermore, both the lower insertion hole 111 and the upper insertion hole 401 are rectangular holes; the upper and lower ends of the columnar wear-resistant anvil 21 are provided with rectangular protrusions 211; the circumferential orientation of the columnar wear-resistant anvil 21 is adjusted by the assembly angle between the rectangular protrusions 211 and the rectangular holes, achieving circumferential restriction after insertion. Specifically, the design of the rectangular holes allows the columnar wear-resistant anvil 21 to change its circumferential orientation during installation by adjusting the assembly angle between the rectangular protrusions 211 and the rectangular holes. The cooperation between the rectangular protrusions 211 and the rectangular holes not only provides flexibility during installation, but also achieves circumferential restriction after insertion through the structure of the rectangular holes, ensuring the stability of the columnar wear-resistant anvil 21 during operation. As a preferred embodiment, the size and shape of the rectangular holes and rectangular protrusions 211 can be adjusted according to actual needs to adapt to columnar wear-resistant anvils 21 of different specifications. In addition, the machining accuracy and surface treatment process of the rectangular holes and rectangular protrusions 211 can be further optimized to improve assembly accuracy and wear resistance. To address this, this technical solution utilizes the cooperation of rectangular holes and rectangular protrusions 211 to achieve flexible adjustment of the circumferential angle of the columnar wear-resistant anvil 21 during installation, and provides circumferential restraint through the structure of the rectangular holes after insertion. This avoids failure of the columnar wear-resistant anvil 21 due to excessive localized wear during operation, extending the anvil's service life. Compared with existing technologies, this solution not only improves the wear resistance and service life of the anvil but also simplifies the installation and maintenance process, reducing maintenance costs.

[0034] Therefore, this technical solution, by setting open clearance holes 121 and upper insertion holes 401 on the pressure plate 40, makes the columnar wear-resistant anvil 21 easier to assemble and disassemble relative to the entire annular base 10. During installation, circumferential adjustment can be made based on the angle of insertion into the upper insertion hole 401, and fixation is achieved through the circumferential limiting structure of the upper insertion hole 401. This design allows the anvil assembly 20 to flexibly adjust its angle during installation and remain stable after fixation, thus solving the technical problem of achieving circumferential adjustment and circumferential limiting of the anvil assembly 20 during installation and fixation. Compared with existing technologies, this solution not only improves the installation efficiency and flexibility of the anvil assembly 20, but also enhances its stability and durability during use, effectively reducing maintenance costs and replacement frequency.

[0035] like Figure 1 As shown, the anvil assembly 20 includes at least two columnar wear-resistant anvils 21; the pressure plate 40 is provided with a plurality of upper insertion holes 401 matching the number of columnar wear-resistant anvils 21; when the pressure plate 40 is fixed to the top plate 12, its plurality of upper insertion holes 401 cover the adjacent clearance holes 121 of the top plate 12, and the upper and lower ends of each columnar wear-resistant anvil 21 are respectively inserted into the corresponding lower insertion hole 111 and upper insertion hole 401. Specifically, the number of columnar wear-resistant anvils 21 in the anvil assembly 20 can be adjusted according to actual needs. For example, two, three or more columnar wear-resistant anvils 21 can be selected according to the size of the crushing chamber or the characteristics of the material. The number of upper insertion holes 401 on the pressure plate 40 matches the number of columnar wear-resistant anvils 21, ensuring that each anvil can be installed and adjusted independently. The shape of the upper insertion hole 401 can be circular, rectangular or other suitable shape to mate with the end of the columnar wear-resistant anvil 21. The pressure plate 40 is connected to the top plate 12 by bolts, welding, or other fixing methods to ensure its stability. The clearance hole 121 can be designed as an arc, semi-circle, or other shapes to provide sufficient space during installation and adjustment. By increasing the number of anvil assemblies 20 and providing multiple upper insertion holes 401 on the pressure plate 40, each columnar wear-resistant anvil 21 can be installed and adjusted independently. This design not only improves the installation efficiency of the anvil assembly 20 but also allows the position and angle of each anvil to be adjusted according to actual needs, thereby optimizing the crushing effect. In addition, by fixing the pressure plate 40 to the top plate 12 and ensuring that the upper insertion holes 401 cover the clearance holes 121, the stability and adjustability of the anvil assembly 20 are further guaranteed. Furthermore, connecting two or more sets of columnar wear-resistant anvils 21 through the pressure plate 40 makes its installation structure more stable. Compared with the prior art, this technical solution significantly improves the adjustability and stability of the anvil assembly 20, reduces maintenance costs, and improves crushing efficiency.

[0036] Furthermore, the columnar wear-resistant anvil 21 is made of round high-chromium cast iron. Specifically, round high-chromium cast iron is a material with high hardness and excellent wear resistance, and its high chromium content effectively resists material impact and wear. As a preferred embodiment, the manufacturing process of round high-chromium cast iron includes steps such as smelting, casting, and heat treatment to ensure its internal structure is uniform and has high hardness. In addition, the surface of round high-chromium cast iron can be further treated (such as surface hardening or coating technology) to enhance its wear resistance. The columnar wear-resistant anvil 21 is made of round high-chromium cast iron. This technical feature, by using high-chromium cast iron material, significantly improves the hardness and wear resistance of the columnar wear-resistant anvil 21, thereby effectively extending its service life and reducing the replacement frequency and maintenance costs caused by wear. Compared with the prior art, the columnar wear-resistant anvil 21 made of round high-chromium cast iron can not only withstand material impact for a longer period of time, but also maintain stable performance under high load conditions, further improving the overall efficiency and reliability of the crushing chamber assembly.

[0037] Furthermore, the top plate 12 and the pressure plate 40 are provided with corresponding through holes 60. The pressure plate 40 is fixedly connected to the top plate 12 by a screw assembly 50 passing through the through hole 60. The design of the through hole 60 allows the pressure plate 40 to be precisely aligned with the top plate 12, ensuring the stability of the connection. The screw assembly 50 can be common fasteners such as bolts and nuts, and the pressure plate 40 and the top plate 12 are fixed through threaded engagement. In addition, the number and distribution of the through holes 60 can be adjusted according to actual needs to enhance the uniformity and strength of the connection. As a preferred embodiment, multiple through holes 60 can be provided and evenly distributed along the edges of the pressure plate 40 and the top plate 12 to further improve the stability of the connection. Through the cooperation of the through holes 60 and the screw assembly 50, the connection between the pressure plate 40 and the top plate 12 not only achieves stability but also facilitates disassembly and installation. This design allows the anvil assembly 20 to be adjusted or replaced quickly, reducing maintenance time and costs. Meanwhile, the use of the bolting assembly 50 ensures that the anvil assembly 20 will not loosen due to vibration or impact during operation, thereby improving the overall performance and durability of the crushing chamber assembly. Compared with the prior art, the technical solution of this application, through the combination of the through hole 60 and the bolting assembly 50, not only solves the problem of unstable connection between the pressure plate 40 and the top plate 12, but also achieves the adjustability and stability of the anvil assembly 20. This design makes the circumferential angle adjustment of the anvil assembly 20 more flexible, and it is not easy to shift after being fixed, thereby improving the working efficiency and reliability of the crushing chamber assembly.

[0038] exist Figure 2 In one embodiment shown, the annular base 10 is integrally formed circumferentially. Figure 3In another embodiment, the annular base 10 is formed by the annular connection of multiple base ring units 101. The annular base 10 has circumferential notches 15 for corresponding to the observation cavity. Specifically, each base ring unit 101 can be connected by bolts, welding, or snap-fit ​​to ensure the firmness and stability of the connection. As a preferred embodiment, the interface of the base ring unit 101 can be designed with a concave-convex fit structure to enhance the accuracy and strength of the connection. Furthermore, the base ring unit 101 can be made of high-strength steel or composite materials to improve the overall durability and load-bearing capacity. The segmented design of the annular base 10 makes its manufacturing and installation process more flexible and efficient. Since the base ring units 101 can be processed and transported separately, processing errors and transportation difficulties are reduced. During installation, each base ring unit 101 can be installed separately, and finally, the complete annular base 10 is formed by connecting the ends, simplifying the installation process and improving installation efficiency. This design also facilitates replacement in case of partial damage, without replacing the entire annular base 10, reducing maintenance costs. Therefore, the technical solution of this application solves the technical problems of complex overall structure and high manufacturing and installation difficulty by decomposing the annular base 10 into multiple base ring units 101. Compared with the prior art, this solution not only reduces the difficulty of processing and installation, but also improves the flexibility of the structure and the convenience of maintenance, and has significant practicality and economy. Example 2

[0039] like Figure 5As shown, this embodiment also proposes a vertical shaft impact crusher, including a crushing chamber assembly 100 and a rotor assembly 300. The crushing chamber assembly 100 is the scheme described in Embodiment 1. The crushing chamber assembly 100 is fixedly connected to the frame 200, and the rotor assembly 300 is disposed inside the crushing chamber assembly 100. When the rotor assembly 300 rotates, the material thrown out can impact the crushing chamber assembly 100 for crushing. The technical solution of this application solves the problems of severe anvil wear, high maintenance costs, and low crushing efficiency in vertical shaft impact crushers by introducing the crushing chamber assembly 100. The crushing chamber assembly 100 is fixedly connected to the frame 200, ensuring structural stability. The rotor assembly 300 is disposed inside the crushing chamber assembly 100, and the material thrown out by rotation impacts the crushing chamber assembly 100 for crushing, thus improving crushing efficiency. This technical solution extends the service life of the anvil, reduces maintenance costs, and improves crushing efficiency by optimizing the structure of the crushing chamber assembly 100. Specifically, the circumferentially adjustable design of the anvil assembly 20 allows the anvil to adjust its impact surface according to material characteristics or crushing requirements, avoiding excessive local wear and further extending the anvil's service life. Furthermore, the arrangement of multiple anvil assemblies 20 and the guiding effect of the anvil chamber ring 13 enable the material to be crushed through multiple collisions within the chamber, improving crushing efficiency and simultaneously enhancing the particle shape and gradation control accuracy of the finished sand. Compared with existing technologies, the technical solution of this application has significant advantages in wear resistance, adjustability, and high-efficiency crushing capacity, effectively solving problems such as single-cycle usage limitations, non-adjustable structure, and low maintenance efficiency inherent in traditional crushing chambers.

[0040] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A crushing chamber assembly, characterized in that, include: - The annular base (10) includes a bottom plate (11), a top plate (12) and an anvil cavity ring (13) connected to the outer edge of the bottom plate (11) and the top plate (12). The anvil cavity ring (13) covers the outside of the anvil assembly (20) to guide the material to collide and break repeatedly in the cavity. - Multiple sets of anvil assemblies (20) are arranged circumferentially along the annular base (10), and each set of anvil assembly (20) includes a columnar wear-resistant anvil (21). The anvil assembly (20) is fixed to the bottom plate (11) and top plate (12) of the annular base (10) at its upper and lower ends respectively. The columnar wear-resistant anvil (21) can be circumferentially adjusted when installed on the annular base (10), but is restricted circumferentially after being fixed.

2. The crushing chamber assembly according to claim 1, characterized in that: - The bottom plate (11) of the annular base (10) is provided with a lower insertion hole (111). - The lower end of the columnar wear-resistant anvil (21) is inserted into the lower insertion hole (111) and is circumferentially fixed by the circumferential limiting structure of the lower insertion hole (111).

3. The crushing chamber assembly according to claim 2, characterized in that: - The inner edge of the top plate (12) is provided with an open clearance hole (121). - The anvil assembly (20) further includes a pressure plate (40), which is fixed to the top plate (12) and has an upper insertion hole (401). - The upper end of the columnar wear-resistant anvil (21) is inserted into the upper insertion hole (401) and is circumferentially fixed by the circumferential limiting structure of the upper insertion hole (401).

4. The crushing chamber assembly according to claim 3, characterized in that: - The anvil assembly (20) includes at least two columnar wear-resistant anvils (21); - The pressure plate (40) is provided with a plurality of upper insertion holes (401) matching the number of columnar wear-resistant anvils (21). - When the pressure plate (40) is fixed to the top plate (12), its multiple upper insertion holes (401) cover the adjacent clearance holes (121) of the top plate (12), and the upper and lower ends of each columnar wear-resistant anvil (21) are respectively inserted into the corresponding lower insertion hole (111) and upper insertion hole (401).

5. The crushing chamber assembly according to claim 3, characterized in that: - The top plate (12) and the pressure plate (40) are provided with corresponding through holes (60); - The pressure plate (40) is fixedly connected to the top plate (12) by a screw assembly (50) passing through the through hole (60).

6. The crushing chamber assembly according to claim 1, characterized in that: - The annular base (10) is formed by the annular docking of multiple base ring units (101). The annular base (10) has a notch (15) in the circumferential direction for corresponding to the observation cavity.

7. The crushing chamber assembly according to claim 3, characterized in that: - Both the lower insertion hole (111) and the upper insertion hole (401) are rectangular holes; - The columnar wear-resistant anvil (21) is provided with rectangular protrusions (211) at both the upper and lower ends. - The circumferential orientation of the columnar wear-resistant anvil (21) is adjusted by the assembly angle between the rectangular protrusion (211) and the rectangular hole, and circumferential restriction is achieved after insertion.

8. The crushing chamber assembly according to claim 1, characterized in that: - The columnar wear-resistant anvil (21) is made of round high-chromium cast iron.

9. The crushing chamber assembly according to claim 3, characterized in that: - The clearance hole (121) is an arc hole or a semi-circular hole provided on the inner edge of the top plate (12).

10. A vertical shaft impact crusher, characterized in that, include: - The crushing chamber assembly (100) as described in any one of claims 1-9, wherein the crushing chamber assembly (100) is fixedly connected to the frame (200); - A rotor assembly (300) is disposed inside the crushing chamber assembly (100), and the material thrown out by the rotor assembly (300) when it rotates can impact the crushing chamber assembly (100) for crushing.

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