Lining plate mechanism of cone crusher

Abstract

The utility model relates to the technical field of crushers, in particular to a lining plate mechanism of a cone crusher, which comprises a movable cone lining plate, a fixed cone lining plate, a first embedded steel plate and a second embedded steel plate, the movable cone lining plate is arranged in the fixed cone lining plate, and a cavity defined by the movable cone lining plate and the fixed cone lining plate is a crushing cavity; a plurality of first grooves are formed in the outer wall of the movable cone lining plate in a surrounding manner; the plurality of first embedded steel plates are embedded into the plurality of first grooves in a one-to-one correspondence manner; a plurality of second grooves are formed in the inner wall of the fixed cone lining plate in a surrounding manner; the plurality of second embedded steel plates are embedded into the plurality of second grooves in a one-to-one correspondence manner; the first embedded steel plate and the second embedded steel plate are abrasion parts. The grooves can enhance the friction resistance between the lining plate and the mineral aggregate, slow down the discharging speed and improve the crushing efficiency of the mineral aggregate. And the raw diamond can be extruded and impacted into the first groove, so that the crushing amount of the raw diamond in the crushing operation process is reduced, and the economic benefit is improved.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a liner mechanism for a cone crusher. Background Technology

[0002] Cone crushers are used to crush ores, such as diamond ore, to separate rough diamonds. A cone crusher consists of a moving cone liner and a fixed cone liner, which together form a crushing chamber. The moving cone liner is located inside the fixed cone liner and undergoes a combined gyratory motion to compress and impact the ores. After the ores are crushed into particles of a certain size, they naturally fall from the bottom of the crushing chamber, achieving the purpose of separating the target ores.

[0003] If the distance between the moving cone liner and the fixed cone liner is too small, it will greatly increase the probability of diamond rough being broken during crushing, reducing economic efficiency. If the distance between the moving cone liner and the fixed cone liner is too large, the output size after crushing will be too large, increasing the workload of subsequent screening; some diamond rough will not be completely crushed and will easily be mixed into the tailings and discarded; after screening, the large particles of ore will undergo secondary crushing, further increasing the probability of diamond rough being broken.

[0004] Therefore, there is an urgent need for a liner mechanism for cone crushers that can reduce the probability of crushing when screening target ore. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a liner mechanism for a cone crusher, which solves the technical problem that the target ore has a high probability of being crushed when the liner mechanism of the existing cone crusher screens the target ore.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the liner mechanism of the cone crusher of this utility model includes a moving cone liner, a fixed cone liner, a first embedded steel plate, and a second embedded steel plate.

[0009] The moving cone liner is disposed inside the fixed cone liner, and the cavity formed by the two is the crushing chamber;

[0010] The outer wall of the moving cone liner is provided with a plurality of first grooves; the plurality of first pre-embedded steel plates are embedded in the plurality of first grooves in a corresponding manner;

[0011] The inner wall of the fixed cone liner is provided with a plurality of second grooves; the plurality of second pre-embedded steel plates are embedded in the plurality of second grooves in a corresponding manner;

[0012] Both the first embedded steel plate and the second embedded steel plate are wear parts.

[0013] Optionally, the bottom height of the second embedded steel plate is located between the top height and the bottom height of the first embedded steel plate; the bottom end of the first groove is connected to the bottom surface of the moving cone liner.

[0014] Optionally, the length of the first embedded steel plate is not greater than the length of the first groove;

[0015] And / or the length of the second embedded steel plate is not greater than the length of the second groove.

[0016] Optionally, the second embedded steel plate includes a sub-plate and a mother plate connected in a Y-shape;

[0017] The angle between the sub-plate and the mother plate is θ;

[0018] The bottom end of the sub-board is connected to the mother board, and the height of the bottom end of the sub-board is not lower than the height of the bottom end of the mother board.

[0019] Optionally, the mother plate is provided with a lower reference connection hole; multiple lower reference connection holes are arranged at the same horizontal height;

[0020] Both the sub-plate and the mother plate are provided with upper reference connection holes; multiple upper reference connection holes are arranged at the same horizontal height.

[0021] Optionally, the lower reference connection hole is connected to the side of the mother plate opposite to the fixed cone liner;

[0022] The upper reference connection hole is connected to the side of the second pre-embedded steel plate opposite to the fixed cone liner.

[0023] Optionally, a plurality of inclined wing plates are arranged around the top outer wall of the moving cone liner, and the angle between the end face of the wing plate and the horizontal plane is α.

[0024] Optionally, an annular groove is formed on the outer wall of the fixed cone liner;

[0025] The top height of the second embedded steel plate is not lower than the bottom height of the annular groove.

[0026] Optionally, the angle between the first groove and the horizontal plane is β.

[0027] Optionally, the moving cone liner and / or the fixed cone liner can be vertically raised and lowered.

[0028] (III) Beneficial Effects

[0029] The beneficial effects of this utility model are:

[0030] Multiple first grooves are formed around the outer wall of the moving cone liner. These first grooves enhance the frictional resistance between the moving cone liner and the ore, slowing down the discharge speed and increasing the crushing efficiency of the ore. Furthermore, the rough diamonds can be squeezed and impacted into the first grooves, reducing the amount of rough diamonds broken during the crushing process and improving economic efficiency. The fixed cone liner and the second groove work similarly.

[0031] The first and second embedded steel plates are embedded into the first and second grooves respectively, meaning that the first embedded steel plate must not protrude from the first groove and the second embedded steel plate must not protrude from the second groove. This ensures that the first and second embedded steel plates will not affect the crushing strength of the liner mechanism, effectively preventing the rough diamond from being crushed by the first embedded steel plate (and the second embedded steel plate), and ensuring the particle size of the crushed rough diamond.

[0032] The embedded steel plate is a wear part, and its hardness is much lower than that of rough diamonds. In the early stages of crushing, the embedded steel plate increases the frictional resistance between the liner mechanism and the ore, further slowing down the ore's discharge speed and improving crushing efficiency. In the middle stages of crushing, some rough diamonds are screened out of the ore, and the embedded steel plate is gradually worn down. This allows the rough diamonds to be squeezed and impacted into the pits formed by the wear on the embedded steel plate, effectively protecting them from further wear. In the later stages of crushing, the embedded steel plate is almost completely worn down, and the pits on the embedded steel plate connect with the grooves. It can be considered that no embedded steel plate is placed in the grooves at this point. During the gyratory compound motion of the moving cone liner, the rough diamonds can be squeezed and impacted into the grooves and protected, reducing the risk of the rough diamonds being directly crushed by the outer wall of the passive cone liner and the inner wall of the fixed cone liner. Throughout the entire crushing process, the ore discharge speed from the bottom of the crushing chamber is slow at first and then fast, which is beneficial for efficient crushing in the early stages and smooth discharge in the later stages. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the liner mechanism of the cone crusher of this utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the fixed cone liner of this utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the moving cone liner of this utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the first embedded steel plate of this utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the second embedded steel plate of this utility model;

[0038] Figure 6 This is a schematic diagram of the structure of the mother plate of this utility model;

[0039] Figure 7 This is a schematic diagram of the sub-plate of this utility model.

[0040] [Explanation of Labels in the Attached Image]

[0041] 1: Moving cone liner; 11: First groove;

[0042] 2: Fixed cone liner; 21: Second groove; 22: Annular groove;

[0043] 3: First embedded steel plate;

[0044] 4: Second embedded steel plate; 41: Sub-plate; 42: Mother plate; 421: Lower reference connection hole; 422: Upper reference connection hole;

[0045] 5: Wing plate. Detailed Implementation

[0046] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0048] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] See Figures 1 to 4This utility model provides a liner mechanism for a cone crusher. The liner mechanism includes a moving cone liner 1, a fixed cone liner 2, a first embedded steel plate 3, and a second embedded steel plate 4. The moving cone liner 1 is disposed inside the fixed cone liner 2, and the cavity formed by the two is the crushing chamber. Multiple first grooves 11 are formed around the outer wall of the moving cone liner 1. Multiple first embedded steel plates 3 are embedded into the multiple first grooves 11 in a corresponding manner. Multiple second grooves 21 are formed around the inner wall of the fixed cone liner 2. Multiple second embedded steel plates 4 are embedded into the multiple second grooves 21 in a corresponding manner. Both the first embedded steel plates 3 and the second embedded steel plates 4 are wear parts. The moving cone liner 1 of the cone crusher, based on the combined gyratory motion of the eccentric sleeve driven by the electric motor, forms a squeezing and impact with the fixed cone liner 2, causing the material to be crushed and discharged by gravity.

[0051] Wear parts can be made of commonly used low-hardness ordinary steel plates. The low hardness and excellent toughness and plasticity of ordinary steel plates can protect the rough diamonds screened from the ore from breakage. Wear parts are replaced according to actual working conditions. During diamond ore crushing and processing, the low-hardness pre-embedded steel plates wear first. The pits and grooves formed after wear connect to form a discharge chute. The discharge chute can protect the rough diamonds from being crushed, offering advantages of high efficiency and precision. The discharge chute acts as a protective cavity, reducing the probability of the rough diamonds being broken and refined.

[0052] Multiple first grooves 11 are formed around the outer wall of the moving cone liner 1. The first grooves 11 can enhance the frictional resistance between the moving cone liner 1 and the ore, slow down the discharge speed, and increase the crushing efficiency of the ore. In addition, the rough diamonds can be squeezed and impacted into the first grooves 11, reducing the amount of rough diamonds broken during the crushing process and improving economic efficiency. The fixed cone liner 2 and the second groove 21 are similar and will not be described in detail.

[0053] The first embedded steel plate 3 and the second embedded steel plate 4 are respectively embedded in the first groove 11 and the second groove 21. That is, the first embedded steel plate 3 shall not protrude from the first groove 11 and the second embedded steel plate 4 shall not protrude from the second groove 21, so as to ensure that the first embedded steel plate 3 and the second embedded steel plate 4 will not affect the crushing strength of the liner mechanism, effectively avoid the diamond rough being crushed by the first embedded steel plate 3 (and the second embedded steel plate 4), and ensure the particle size of the crushed diamond rough.

[0054] The embedded steel plates (first embedded steel plate 3 and second embedded steel plate 4) are wear parts, and their hardness is much lower than that of rough diamonds. In the early stage of crushing, the embedded steel plates increase the frictional resistance between the liner mechanism and the ore, which can further slow down the discharge speed of the ore and improve crushing efficiency. In the middle stage of crushing, some rough diamonds are screened out from the ore, and the embedded steel plates are gradually worn, so that the rough diamonds can be squeezed and impacted into the pits formed by the wear of the embedded steel plates, effectively protecting the rough diamonds in the pits from further wear. In the later stage of crushing, the embedded steel plates are basically completely worn, and the pits of the embedded steel plates are connected to the grooves (first groove 11 and second groove 21). It can be regarded as that no embedded steel plates are set in the grooves at this time. During the gyratory compound motion of the moving cone liner 1, the rough diamonds can be squeezed and impacted into the grooves and protected, reducing the risk of the rough diamonds being crushed by direct compression between the outer wall of the passive cone liner 1 and the inner wall of the fixed cone liner 2. Throughout the crushing process, the material exits from the bottom of the crushing chamber at a slow speed at first and then speeds up, which is beneficial for efficient crushing of the material in the early stage and smooth discharge in the later stage.

[0055] Furthermore, the bottom height of the second embedded steel plate 4 is located between the top and bottom heights of the first embedded steel plate 3; the bottom end of the first groove 11 is connected to the bottom surface of the moving cone liner 1. On the one hand, in the early stage of crushing operation, the first embedded steel plate 3 can reduce the distance between the first groove 11 and the inner wall of the bottom end of the fixed cone liner 2, slowing down the falling speed of the ore, i.e., the discharge speed. On the other hand, the bottom end of the first groove 11 is connected to the bottom surface of the moving cone liner 1, so that in the later stage of crushing operation, the rough diamond can fall into the first groove 11 through the bottom end of the second groove 21 and be discharged from the liner mechanism through the bottom end of the first groove 11, further reducing the risk of the rough diamond being crushed.

[0056] Secondly, the length of the first embedded steel plate 3 is not greater than the length of the first groove 11; and / or the length of the second embedded steel plate 4 is not greater than the length of the second groove 21. In this embodiment, by reserving a portion of the groove at the top of the embedded steel plate, the frictional resistance between the liner and the ore is ensured, thereby ensuring crushing efficiency. At the same time, the embedded steel plate can also fill part of the groove, reducing the impact on the ore discharge speed caused by an excessive number of grooves.

[0057] like Figures 5 to 7As shown, the second embedded steel plate 4 includes a sub-plate 41 and a mother plate 42 connected in a Y-shape. The top of the sub-plate 41 and the top of the mother plate 42 are basically at the same height, and the included angle between them is θ, which can be 0°≤θ≤30°. The bottom end of the sub-plate 41 is connected to the mother plate 42, and the height of the bottom end of the sub-plate 41 is not lower than the height of the bottom end of the mother plate 42. Specifically, the Y-shaped structure forms a V-groove at the top of the second embedded steel plate 4. The V-groove has a similar function to a groove, which can increase the frictional resistance with the ore and protect the rough diamond. Optionally, the thickness of the embedded steel plate is 10-12mm. The sub-plate 41 and the mother plate 42 are welded to form a Y-shaped prefabricated body. Compared with a 20mm thick single embedded steel plate, the Y-shaped second embedded steel plate 4 is lighter, more resistant to wear, and can reserve a V-groove to expand the space of the groove.

[0058] In addition, the mother plate 42 has a lower reference connection hole 421; multiple lower reference connection holes 421 are set at the same horizontal height; both the daughter plate 41 and the mother plate 42 have upper reference connection holes 422; multiple upper reference connection holes 422 are set at the same horizontal height. Specifically, multiple second embedded steel plates 4 are prefabricated into embedded steel plate preforms, and then the embedded steel plate preforms are installed as a whole into the fixed cone liner 2. When manufacturing the embedded steel plate preforms, the first hoop is sequentially inserted into multiple lower reference connection holes 421 and then welded or tied, so that the first hoop can serve as a reference for connecting multiple second embedded steel plates 4, improving manufacturing accuracy. Similarly, the multiple upper reference connection holes 422 can be connected by second hoops or pins, and welded after adjusting θ to a preset angle, effectively improving the welding accuracy of the daughter plate 41 and the mother plate 42. Of course, the second embedded steel plate 4 can also be fixed in the corresponding position of the cavity directly by expansion bolts or electric welding, molten steel is injected into the cavity, and the casting blank is obtained by inlay casting. Then, the liner plate is obtained by cleaning, water toughening treatment, machining and other processes.

[0059] Furthermore, the lower reference connecting hole 421 is connected to the side of the mother plate 42 opposite to the fixed cone liner 2; the upper reference connecting hole 422 is connected to the side of the second embedded steel plate 4 opposite to the fixed cone liner 2. This simplifies the installation process of the second embedded steel plate 4. Moreover, the connection also facilitates the removal and placement of the first and second hoops without destructive disassembly, further simplifying the installation process of the second embedded steel plate 4.

[0060] See you again Figure 3 Multiple inclined wing plates 5 are arranged around the top outer wall of the moving cone liner 1. The angle between the end face of the wing plate 5 and the horizontal plane is α, which can be 0° < α < 90°. In this embodiment, the wing plates 5 are made of low-carbon martensitic alloy steel; they can also be integrated with the moving cone liner 1, which has higher hardness and better impact resistance. The wing plates 5 can disperse the ore, balance the load in various parts of the crushing chamber, reduce the impact of the ore on the liner mechanism, and improve the service life of the liner mechanism.

[0061] See you again Figure 2 An annular groove 22 is formed on the outer wall of the fixed cone liner 2; the top height of the second embedded steel plate 4 is not lower than the bottom height of the annular groove 22. The annular groove 22 is a weight-reducing design for the fixed cone liner 2, saving manufacturing costs. Because the annular groove 22 makes the wall thickness of the fixed cone liner 2 thinner at this location, by setting the second embedded steel plate 4 at this location, the second embedded steel plate 4 can form a rapid cooling effect of internal chill during the casting process, affecting the feeding and density of the casting, and improving the forming quality of the liner.

[0062] like Figure 3 As shown, the angle between the first groove 11 and the horizontal plane is β; it can be selected as 0° < β ≤ 90°. That is, the first groove 11 is set at an angle relative to the horizontal plane, which can effectively increase the volume of the first groove 11, prolong the time for the ore to fall, and also increase the capacity for holding rough diamonds, thereby improving economic efficiency.

[0063] Optionally, the moving cone liner 1 and / or the fixed cone liner 2 can be vertically raised and lowered to adjust the distance between them, thereby adjusting the size of the discharge port at the bottom of the liner mechanism and controlling the particle size of the crushed ore. The liner mechanism of this invention integrates a groove and a pre-embedded steel plate, reducing the precision required for adjusting the discharge port size in traditional liner mechanisms. The design of the groove and the pre-embedded steel plate improves the tolerance for error in adjusting the discharge port size. For example, if the distance between the moving cone liner 1 and the fixed cone liner 2 is too small, the friction of the pre-embedded steel plate intensifies, and the accommodating space of the groove expands rapidly, effectively reducing the probability of diamond breakage. Therefore, when adjusting the vertical raising and lowering height of the moving cone liner 1 and / or the fixed cone liner 2, the actual adjustment size of the discharge port size can be slightly smaller than the theoretical adjustment size, reducing the difficulty of adjusting the discharge port size.

[0064] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. A liner mechanism for a cone crusher, characterized in that, The liner mechanism includes a moving cone liner (1), a fixed cone liner (2), a first embedded steel plate (3), and a second embedded steel plate (4); The moving cone liner (1) is disposed inside the fixed cone liner (2), and the cavity formed by the two is the crushing cavity; The outer wall of the moving cone liner (1) is provided with a plurality of first grooves (11); a plurality of first pre-embedded steel plates (3) are embedded in the plurality of first grooves (11) in a corresponding manner; The inner wall of the fixed cone liner (2) is provided with a plurality of second grooves (21); a plurality of second pre-embedded steel plates (4) are embedded in the plurality of second grooves (21) in a corresponding manner; Both the first embedded steel plate (3) and the second embedded steel plate (4) are wear parts; The second embedded steel plate (4) includes a sub-plate (41) and a mother plate (42) connected in a Y-shape; the angle between the sub-plate (41) and the mother plate (42) is θ; the bottom end of the sub-plate (41) is connected to the mother plate (42), and the bottom end height of the sub-plate (41) is not lower than the bottom end height of the mother plate (42).

2. The liner mechanism of the cone crusher according to claim 1, characterized in that, The bottom height of the second embedded steel plate (4) is between the top height and the bottom height of the first embedded steel plate (3); the bottom end of the first groove (11) is connected to the bottom surface of the moving cone liner (1).

3. The liner mechanism of the cone crusher according to claim 1, characterized in that, The length of the first embedded steel plate (3) is not greater than the length of the first groove (11); And / or the length of the second embedded steel plate (4) is not greater than the length of the second groove (21).

4. The liner mechanism of the cone crusher according to claim 1, characterized in that, The mother plate (42) is provided with a lower reference connection hole (421); a plurality of the lower reference connection holes (421) are provided at the same horizontal height; Both the sub-plate (41) and the mother plate (42) are provided with upper reference connection holes (422); multiple upper reference connection holes (422) are set at the same horizontal height.

5. The liner mechanism of the cone crusher according to claim 4, characterized in that, The lower reference connection hole (421) is connected to the side of the mother plate (42) that is away from the fixed cone liner (2); The upper reference connection hole (422) is connected to the side of the second pre-embedded steel plate (4) that is away from the fixed cone liner (2).

6. The liner mechanism of the cone crusher according to claim 1, characterized in that, The top outer wall of the moving cone liner (1) is surrounded by a number of inclined wing plates (5), and the angle between the end face of the wing plate (5) and the horizontal plane is α.

7. The liner mechanism of the cone crusher according to claim 1, characterized in that, The outer wall of the fixed cone liner (2) is provided with an annular groove (22); The top height of the second embedded steel plate (4) is not lower than the bottom height of the annular groove (22).

8. The liner mechanism of the cone crusher according to claim 1, characterized in that, The angle between the first groove (11) and the horizontal plane is β.

9. The liner mechanism of the cone crusher according to claim 1, characterized in that, The moving cone liner (1) and / or the fixed cone liner (2) can move vertically up and down.

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