A reinforced liner plate for a cone crusher

Abstract

This utility model relates to a reinforced liner for a cone crusher, comprising a cermet block, a fixed cone liner body, and a moving cone liner body. The cermet block has several through holes. Several cermet blocks are evenly distributed circumferentially on the working surface of the fixed cone liner body. The moving cone liner body includes a crushing surface, and several cermet blocks are evenly distributed circumferentially on the working surface of the crushing surface. The moving cone liner body and the fixed cone liner body are fused together with the cermet block through the through holes. The surface of the cermet block does not exceed the working surface of the moving cone liner body and the fixed cone liner body. Because the surface of the cermet block does not extend beyond the working surface of the liner body, a unique wear protection mechanism is formed. After the liner body wears to a certain extent, the cermet block is gradually exposed and bears the main wear load, forming a natural "hard support layer".

Description

Technical Field

[0001] This utility model relates to the field of mining machinery and equipment technology, specifically to a reinforced liner for a cone crusher. Background Technology

[0002] In the complex and harsh working environment of a cone crusher, the liner plate performs multiple key functions. On the one hand, it resists the impact and friction of ore. During operation, the ore constantly impacts and scrapes the surface of the liner plate. Through its wear-resistant properties, the liner plate protects the main structure of the equipment from wear and damage, extending the service life of the equipment. On the other hand, the liner plate optimizes the crushing effect of materials. Its special shape and structural design can guide the ore to form a reasonable movement trajectory within the equipment, enhancing crushing and grinding efficiency and ensuring uniform particle size of the output material. However, the hardness, particle size, and abrasiveness of ores vary significantly. When high-hardness ores continuously impact the surface of the liner plate, it can cause fatigue spalling of the surface material, groove wear, and even cracks. The moisture content or sticky substances in the ore may exacerbate the adhesive wear between the liner plate and the ore, leading to thinning of the liner plate and a decrease in structural strength over long-term operation.

[0003] Application Publication Number: CN109225408 A, Application Date: 2018.08.14, Invention Title: A Wear-Resistant Cone Crusher Liner. This invention discloses a wear-resistant cone crusher liner, including a fixed cone liner and a moving cone liner. A conical crushing tooth is fixedly connected to the top of the surface of the moving cone liner. A strip-shaped crushing tooth is fixedly connected to the surface of the moving cone liner below the conical crushing tooth. A first protrusion is fixedly connected to the surface of the moving cone liner below the strip-shaped crushing tooth. An anti-slip ring is fixedly connected to the top of the fixed cone liner near the moving cone liner. An annular groove is formed on the surface of the fixed cone liner at a corresponding position at the bottom of the anti-slip ring. An anti-slip ring is fixedly connected to the surface of the fixed cone liner. A second protrusion is fixedly connected to the surface of the fixed cone liner below the anti-slip ring. This invention relates to the field of cone crusher technology. This wear-resistant cone crusher liner solves the problems of poor overall wear resistance, poor impact toughness, and easy relative sliding between the ore and the liner during the crushing process, resulting in low crushing efficiency and incomplete crushing.

[0004] In the aforementioned existing technology, the crushing teeth protrude from the liner surface, causing them to directly contact the material during crushing and endure significant impact and friction. This wear rate is particularly rapid when crushing materials with high hardness or containing sharp particles. This not only necessitates frequent replacement of the crushing teeth, increasing maintenance costs and workload, but also affects the overall crushing efficiency and quality of the crushing equipment due to tooth wear. As the crushing teeth wear down, their crushing capacity gradually decreases, potentially leading to incomplete material crushing and requiring secondary crushing, further increasing production costs and energy consumption. Utility Model Content

[0005] In view of the shortcomings of the existing technology, such as easy wear of the crushing teeth and the need for frequent replacement, the purpose of this utility model is to provide a wear-resistant reinforced liner for cone crushers.

[0006] The technical solution provided by this utility model is: a reinforced liner for a cone crusher, comprising,

[0007] A metal-ceramic block having several through holes;

[0008] The fixed cone liner body has several metal-ceramic blocks evenly distributed along the circumference of its working surface.

[0009] The moving cone liner body includes a crushing surface, and several metal-ceramic blocks are evenly distributed along the circumferential direction on the working surface of the crushing surface.

[0010] The moving cone liner body and the fixed cone liner body are integrally cast with the metal-ceramic block through through holes; the surface of the metal-ceramic block is not higher than the working surface of the moving cone liner body and the fixed cone liner body.

[0011] Furthermore, each of the metal-ceramic blocks has at least two through holes.

[0012] Furthermore, along the direction from the top to the bottom of the fracture surface, the through-hole size of a single metal-ceramic block gradually increases.

[0013] Furthermore, the individual metal-ceramic blocks are placed horizontally or vertically.

[0014] Furthermore, the metal-ceramic block includes single-row metal-ceramic blocks and multi-row metal-ceramic blocks;

[0015] The through holes of the single-row metal-ceramic block are arranged in a straight line, while the through holes of the multi-row metal-ceramic block are arranged in an array.

[0016] Furthermore, along the axial direction of the moving cone liner body, the metal-ceramic blocks are distributed in a stepped or spiral pattern on the surface of the moving cone liner body.

[0017] Furthermore, the metal-ceramic blocks in adjacent layers are arranged in an alternating pattern.

[0018] Furthermore, when the metal-ceramic blocks are distributed in a stepped manner, the height difference between adjacent steps is 6mm to 18mm.

[0019] Furthermore, for a single metal-ceramic block, the net distance from the edge of the through hole to the edge of the metal-ceramic block is not less than 10 mm.

[0020] Furthermore, the through hole is circular or square.

[0021] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0022] (1) The surface of the metal ceramic block of this utility model does not exceed the working surface of the fixed cone liner body and the moving cone liner body, so it can form a unique wear protection mechanism. After the liner body is worn to a certain extent, the metal ceramic block is gradually exposed and bears the main wear load, forming a natural "hard support layer".

[0023] (2) The metal ceramic block of this utility model has no less than two through holes; on the one hand, multiple through holes significantly increase the contact and bonding area between the molten metal and the metal ceramic block, further strengthening the metallurgical bond between the two, making the structure of the reinforcing liner at the micro level more compact and stable, and improving the overall mechanical properties; on the other hand, the diverse through hole arrangement methods give rise to single-row metal ceramic blocks and multi-row metal ceramic blocks, allowing users to flexibly select the appropriate type of metal ceramic block according to different ore characteristics, working parameters of grinding and crushing equipment, and other actual working conditions. Attached Figure Description

[0024] Figure 1 This is an overall structural diagram of the fixed cone liner body and the moving cone liner body in one embodiment of this application;

[0025] Figure 2 This is a cross-sectional view of the fixed cone liner body and the moving cone liner body in one embodiment of this application;

[0026] Figure 3 This is a structural diagram of a metal-ceramic block placed vertically in one embodiment of this application;

[0027] Figure 4 This is a structural diagram of a horizontally placed metal-ceramic block in one embodiment of this application;

[0028] Figure 5 This is a three-dimensional structural diagram of a single-row metal-ceramic block with circular through holes in one embodiment of this application;

[0029] Figure 6 This is a front view of a single-row metal-ceramic block with circular through holes in one embodiment of this application;

[0030] Figure 7 This is a three-dimensional structural diagram of a single-row metal-ceramic block with square through holes in one embodiment of this application;

[0031] Figure 8 This is a front view of a single-row metal-ceramic block with square through holes in one embodiment of this application;

[0032] Figure 9This is a three-dimensional structural diagram of a multi-row metal-ceramic block with circular through holes in one embodiment of this application;

[0033] Figure 10 This is a front view of a multi-row metal-ceramic block with circular through holes in one embodiment of this application;

[0034] Figure 11 This is a front view of a multi-row metal-ceramic block with hexagonal through holes in one embodiment of this application.

[0035] Explanation of the labels in the diagram:

[0036] Metal-ceramic block 1; Single-row metal-ceramic block 11; Multi-row metal-ceramic block 12;

[0037] 2. Fixed cone liner body;

[0038] Moving cone liner body 3; fracture surface 31, slip surface 32. Detailed Implementation

[0039] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0040] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0041] Cone crushers are widely used in mining, metallurgy, and building materials industries, primarily for crushing ores with high hardness. Their working principle is based on the relative motion between the crushing wall and the jaws, achieving material crushing through compression, impact, and bending.

[0042] The cone crusher drives the crushing wall to oscillate through the rotation of the eccentric bushing, causing the volume of the annular crushing chamber between the crushing wall and the grinding chamber wall to change periodically. This applies repeated squeezing and shearing forces to the material until it is crushed to the required particle size.

[0043] When the crushing wall approaches the grinding chamber wall, the gap between the crushing chambers narrows, and the material is subjected to the squeezing and impact of the crushing wall and the inner wall of the grinding chamber wall, and large pieces of material are crushed into smaller particles.

[0044] As the crushing wall moves away from the grinding bowl wall, the gap in the crushing chamber widens, and the crushed material moves downward under the influence of gravity, while new material falls into the upper part of the crushing chamber from the feed inlet. The crushing chamber is divided into a coarse crushing zone (upper part), a medium crushing zone (middle part), and a fine crushing zone (lower part) along the axial direction. During the downward movement, the material undergoes multiple compressions and grindings until the particle size is smaller than the discharge port size.

[0045] Therefore, the gap (discharge port) of the crushing chamber shrinks and expands periodically with the movement of the crushing wall, realizing a continuous cycle of "crushing-discharge".

[0046] The liners of a cone crusher, including the crushing wall of the moving cone and the grinding wall of the fixed cone, are the core wear-resistant components that directly contact the material and undertake the crushing task. Their working environment is extremely harsh, and they need to withstand the strong extrusion, impact, friction and shearing of high-hardness materials for a long time. Therefore, they must be reinforced.

[0047] This application discloses a reinforced liner for a cone crusher, comprising a cermet block 1, a fixed cone liner body 2, and a movable cone liner body 3. The fixed cone liner body 2 has a plurality of cermet blocks 1 evenly distributed circumferentially. The movable cone liner body 3 includes a crushing surface 31 and a sliding surface 32, wherein material slides into the crushing chamber from the sliding surface 32. A plurality of cermet blocks 1 are evenly distributed circumferentially on the crushing surface 31. The working surfaces of the fixed cone liner body 2 and the movable cone liner body 3 are opposite each other.

[0048] The metal-ceramic block 1 has several through holes. When casting the fixed cone liner body 2, the molten metal is fused together with the metal-ceramic block 1 through the through holes. Similarly, the molten metal of the moving cone liner body 3 is fused together with the metal-ceramic block 1 through the through holes.

[0049] After the molten metal seeps into the through-holes of the metal-ceramic block 1, it solidifies to form a three-dimensional network structure, similar to the steel skeleton in reinforced concrete, which greatly improves the interfacial bonding force.

[0050] The through-hole structure allows the metal matrix of the fixed cone liner body 2 and the moving cone liner body 3 to "wrap" the metal ceramic block 1. When subjected to impact, the stress is dispersed through the metal network, preventing the metal ceramic block 1 from directly bearing concentrated loads and cracking.

[0051] The surface of the metal-ceramic block 1 does not exceed the working surface of the fixed cone liner body 2 and the moving cone liner body 3, and is preferably slightly lower than the working surface by about 0.5mm to 3mm. Therefore, it can form a unique wear protection mechanism. After the liner body 1 is worn to a certain extent, the metal-ceramic block 2 is gradually exposed and bears the main wear load (similar to the "gradient wear" mechanism), forming a natural "hard support layer".

[0052] For a single metal-ceramic block 1, the net distance from the edge of the through-hole to the edge of the metal-ceramic block 1 is E, where E ≥ 10 mm, forming a protective layer with a width of not less than 10 mm. It is worth noting that the net distance mentioned here refers to the vertical distance between the two. The metal-ceramic block 1 adopts a porous structure with no less than two through-holes. This structure can significantly increase the contact area with the molten metal while maintaining high strength, thus enhancing the interfacial metallurgical bonding effect.

[0053] Each metal-ceramic block 1 has at least two through holes. When the through hole is circular, the diameter A ranges from 18mm to 23mm, and the net distance between adjacent through holes is C, where A / 2 ≤ C ≤ A. When the through hole is square, the side length B ranges from 20mm to 25mm, and the net distance between adjacent through holes is D, where B / 2 ≤ D ≤ B. It is worth noting that the net distance mentioned here refers to the vertical distance between the edges of adjacent through holes.

[0054] In addition, through holes can also be regular polygons other than squares, such as regular hexagons. In this case, the diameter of the circumscribed circle of the through hole is 20mm to 25mm, and the net distance between adjacent through holes is not less than the radius of the circumscribed circle of the through hole and not greater than the diameter of the circumscribed circle of the through hole.

[0055] The net distance between adjacent through holes can ensure the structural strength of the metal-ceramic block 1. The diameter of the through holes is required to ensure that the molten metal liquid of the liner body 1 is fully filled in the through holes, forming a uniformly distributed "metal anchor" reinforcement structure, which enhances the mechanical interlocking performance between the metal-ceramic block 1 and the liner body 1, and ultimately improves the overall wear resistance and impact resistance of the reinforced liner.

[0056] According to the type of through holes, the metal-ceramic blocks 1 are classified into single-row metal-ceramic blocks 11 and multi-row metal-ceramic blocks 12. Among them, the through holes of the single-row metal-ceramic blocks 11 are arranged in a straight line, while the through holes of the multi-row metal-ceramic blocks 12 are arranged in an array.

[0057] Depending on the actual working conditions of the cone crusher, single-row metal-ceramic blocks 11, multi-row metal-ceramic blocks 12, or a combination of both can be flexibly selected.

[0058] Whether on the fixed cone liner body 2 or on the crushing surface 31, the same layer of metal-ceramic blocks 1 can be placed horizontally or vertically. When placed horizontally, the gaps between the same layer of metal-ceramic blocks 1 are uniform, preferably ranging from 5mm to 15mm. When placed vertically, the gaps between the same layer of metal-ceramic blocks 1 are uniform, preferably ranging from 8mm to 18mm. Of course, the metal-ceramic blocks 1 can also be arranged in a crisscross pattern.

[0059] When the material requires coarse crushing, the metal-ceramic blocks 1 are preferably placed longitudinally, utilizing the guiding crushing characteristics of the vertical gaps to quickly process large pieces of material. When the material requires fine crushing, the metal-ceramic blocks 1 are preferably placed transversely to ensure uniform particle size. In addition, when both crushing efficiency and wear resistance need to be considered, the metal-ceramic blocks 1 are arranged in a checkerboard pattern with alternating transverse and longitudinal directions.

[0060] The surface of the metal-ceramic block 1 is not higher than the surface of the fixed cone liner body 2 and the moving cone liner body 3. Therefore, the reinforced liner provides gradient wear protection. The liner body contacts the material before the metal-ceramic block 1, forming a gradient consumption mode.

[0061] The fixed cone liner body 2 and the moving cone liner body 3 are made of high manganese steel, ultra-high manganese steel or chromium-molybdenum alloy. When the metal substrate wears down to the same level as the metal ceramic block 1, the metal ceramic block 1 begins to bear the main crushing load. Therefore, the embedded structure allows the metal substrate to bear the "first impact" of the material first, and the metal ceramic block 1 is only gradually exposed after the metal wears down, which greatly reduces the impact breakage rate.

[0062] Along the axial direction of the fixed cone liner body 2, the metal-ceramic blocks 1 are distributed in a stepped pattern on the surface of the moving cone liner body 3, with an adjacent step height difference of 6mm to 18mm. It is worth noting that the step height difference referred to here is the vertical net distance between the bottom edge of the upper metal-ceramic block 1 and the top edge of the lower metal-ceramic block 1.

[0063] The cermet blocks 1 can also be spirally distributed on the surface of the moving cone liner body 3. This design is based on the motion characteristics of materials undergoing rotary crushing within the cone crusher. After entering the crushing chamber, the material undergoes both axial downward motion and rotation around the crusher axis under the action of the oscillating motion of the crushing wall. The spirally distributed cermet blocks 1 can generate a tangential guiding force on the material, causing it to pass through different crushing zones sequentially along a spiral trajectory, preventing the material from being discharged directly without sufficient crushing.

[0064] Similarly, the metal-ceramic blocks 1 can also be distributed in a stepped or spiral pattern on the surface of the fixed cone liner body 2, which will not be elaborated here.

[0065] When the cone crusher is working, the bottom of the crushing surface 31 (near the discharge end) experiences significantly greater impact loads and frictional forces from the ore than the top. To adapt to the crushing force gradient and improve structural reliability, the through-hole size of the metal-ceramic block 1 gradually increases from the top to the bottom of the crushing surface 31.

[0066] The top through-hole is smaller in size and has a higher proportion of ceramic phase, maintaining a strong initial crushing hardness; the bottom through-hole is larger in size and has an increased proportion of metallic phase, improving overall toughness and forming a gradient structure of "hard at the top and tough at the bottom", which can adapt to the stress changes of "coarse crushing - fine crushing" during the crushing process.

[0067] In addition, when the metal-ceramic block 1 is metallurgically bonded to the liner substrate of the broken surface 31 through the inlay casting process, the larger through hole at the bottom increases the contact area between the molten metal and the metal-ceramic block 1, thereby improving the interfacial bonding force at the bottom.

[0068] It is worth noting that the metal-ceramic blocks 1 of the two adjacent layers are arranged in an alternating manner. The alternating structure forms a continuous and dense wear-resistant layer on the surface of the liner substrate of the fracture surface 31, which can significantly improve the overall performance of the liner, especially in terms of impact resistance, wear resistance and stress dispersion.

[0069] The preparation method of the reinforced liner is as follows:

[0070] S1: Prefabricated metal-ceramic block 1 with through holes;

[0071] S2: Fabricate white foam molds for the fixed cone liner body 2 and the moving cone liner body 3, reserving a fitting part on their working surface to match the metal-ceramic block 1. Place the metal-ceramic block 1 into the fitting part;

[0072] S3: Evenly cover the surface of the foam white mold with embedded metal ceramic blocks 1 with refractory coating and let it dry to form an effective barrier layer;

[0073] S4: Place the foam white mold coated with refractory paint in a sand box and fill it with molding sand;

[0074] S5: Negative pressure evacuation to compact the molding sand and fix the foam white mold and metal-ceramic block 1;

[0075] S6: The molten metal of the fixed cone liner body 2 and the moving cone liner body 3 is injected into the sand box through the gate, so that the foam white mold is heated and vaporized and disappears. The molten metal fills the space of the original foam model and undergoes an interfacial metallurgical bonding reaction with the metal ceramic block 1. A bottom pouring system is used when casting the molten metal.

[0076] S7: After the molten metal cools and solidifies, remove the blank workpiece and perform processing and heat treatment in sequence to obtain the final product.

[0077] The preparation process of the metal-ceramic block 1 in step S1 is carried out according to the following steps:

[0078] Raw material selection and proportioning: High-temperature resistant casting inorganic binder, FeCrC self-fluxing alloy powder, and ceramic particles are precisely proportioned at a mass ratio of 0.4:3:7 to 0.5:4:8. The ceramic particles are selected from 10-20 mesh zirconia-alumina, black fused alumina, silicon carbide, or boron carbide. These particles have high hardness and strong wear resistance, significantly improving the wear resistance of the liner. The binder is a compound of high-temperature resistant inorganic mineral powder and inorganic resin, possessing excellent high-temperature bonding performance and able to withstand the strong impact of molten metal above 1400℃, ensuring the structural stability of the liner under high-temperature conditions. The FeCrC alloy powder particle size is controlled between 0.5 and 30 μm, and its addition amount is 25% to 35% of the ceramic particle mass. FeCrC alloy powder has good self-fluxing properties and can form a strong metallurgical bond with ceramic particles and binder at high temperatures, enhancing the overall strength of the reinforced liner.

[0079] Mixing Process: The above raw materials are placed in a mixer and thoroughly mixed using mechanical stirring. During the stirring process, the FeCrC alloy powder is uniformly adhered to the surface of the ceramic particles by controlling the stirring speed and time, forming metal-ceramic hybrid particles with a binder coating. This mixing process ensures sufficient contact and uniform dispersion of the raw materials, laying the foundation for the subsequent casting process and ensuring the uniform and stable performance of all parts of the reinforced liner.

[0080] Molding Process: A foaming mold is selected as the molding carrier, and the uniformly mixed metal-ceramic granules are quantitatively filled into the mold cavity. A combined mechanical compaction and vibration process is employed. During compaction, pressure is applied through a hydraulic system to initially densify the material; simultaneously, the vibration device is activated, utilizing vibration energy to promote the filling and sliding of material particles, expelling internal air, eliminating voids, and achieving a high degree of material density. After compaction and vibration treatment, the mold is left to stand, allowing the material to further solidify naturally, forming a stable green body structure, providing a good foundation for subsequent drying processes.

[0081] Drying Process: The shaped green body is transferred to a temperature-controlled drying device. A stepped heating strategy is adopted, gradually heating to 200-250℃ at a heating rate of 80-150℃ / h. This heating rate effectively avoids excessive temperature difference between the inside and outside of the green body due to rapid heating, which can cause thermal stress and lead to defects such as cracking and deformation. After reaching the target temperature, a heat preservation treatment is performed to allow the internal moisture of the green body to evaporate fully and to promote the initial curing of the binder. After the heat preservation is completed, the heating system is turned off, and the green body is allowed to cool slowly to room temperature with the furnace. During this process, a series of physicochemical reactions occur inside the green body, ultimately forming a porous metal-ceramic block 1.

[0082] This structure not only endows the metal-ceramic block 1 with lightweight and high-strength properties, but also reduces the overall weight of the reinforced liner and improves the comprehensive performance of the liner.

[0083] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A reinforced liner for a cone crusher, characterized in that: include, Metal-ceramic block (1), which has several through holes; The fixed cone liner body (2) has a number of metal ceramic blocks (1) evenly distributed along the circumference of the working surface of the fixed cone liner body (2); The moving cone liner body (3) includes a crushing surface (31), and a number of metal-ceramic blocks (1) are evenly distributed along the circumference of the working surface of the crushing surface (31). The fixed cone liner body (2) and the moving cone liner body (3) are fused together with the metal ceramic block (1) through a through hole; the surface of the metal ceramic block (1) is not higher than the working surface of the fixed cone liner body (2) and the moving cone liner body (3).

2. The reinforced liner for a cone crusher according to claim 1, characterized in that: Each of the metal-ceramic blocks (1) has at least two through holes.

3. A reinforced liner for a cone crusher according to claim 2, characterized in that: Along the direction from top to bottom of the fracture surface (31), the through-hole size of a single metal-ceramic block (1) gradually increases.

4. A reinforced liner for a cone crusher according to claim 2, characterized in that: The individual metal-ceramic blocks (1) are placed horizontally or vertically.

5. A reinforced liner for a cone crusher according to claim 2, characterized in that: The metal-ceramic block (1) includes a single-row metal-ceramic block (11) and a multi-row metal-ceramic block (12); The through holes of the single-row metal-ceramic block (11) are arranged in a straight line, while the through holes of the multi-row metal-ceramic block (12) are arranged in an array.

6. A reinforced liner for a cone crusher according to claim 1, characterized in that: Along the axial direction of the moving cone liner body (3), the metal ceramic blocks (1) are distributed in a stepped or spiral pattern on the surface of the moving cone liner body (3).

7. A reinforced liner for a cone crusher according to claim 6, characterized in that: The metal-ceramic blocks (1) of the two adjacent layers are arranged alternately.

8. A reinforced liner for a cone crusher according to claim 7, characterized in that: When the metal-ceramic blocks (1) are distributed in a stepped manner, the height difference between adjacent steps is 6 mm to 18 mm.

9. A reinforced liner for a cone crusher according to claim 1, characterized in that: For a single metal-ceramic block (1), the net distance from the edge of the through hole to the edge of the metal-ceramic block (1) is not less than 10 mm.

10. A reinforced liner for a cone crusher according to claim 2, characterized in that: The through-hole is circular or square.

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