Crushing plate for screening crusher

Abstract

The utility model relates to the technical field of screening crushers, and particularly discloses a crushing plate for a screening crusher, aiming at the problems that a crushing plate in an existing screening crusher for crushing ores and the like is quickly and seriously worn, and an existing repair and maintenance mode is tedious and low in efficiency. Comprising a crushing plate body and a plurality of crushing plate teeth arranged on the surface of the crushing plate body; at least one plate tooth is arranged on the surface of the crushing plate tooth in a protruding mode, main teeth and auxiliary teeth are embedded in the surface of the plate tooth, and protection teeth are further embedded in the side wall face, close to the auxiliary teeth, of the plate tooth. And by arranging the crushing teeth with different angles, the impact stress of raw materials such as ores on the surface of the crushing plate in the crushing process can be effectively relieved, the action strength of the raw materials such as ores on the crushing plate in unit area is reduced, abrasion of the crushing plate is effectively delayed, and the service life of the crushing plate is obviously prolonged.

Description

Technical Field

[0001] This utility model relates to the field of screening and crushing technology, and more specifically, to a crushing plate for a screening and crushing machine. Background Technology

[0002] In shale oil and coal mining, larger ores and coal blocks need to be crushed and screened multiple times to reach the required specifications before subsequent washing and beneficiation processes. Currently, the main method is to use screening crushers for multi-stage crushing. However, due to the high hardness of raw materials such as ores, the wear on the screening crushers is quite severe during multi-stage crushing. That is, in the later stages of multi-stage crushing, the crushing plates already show wear, affecting the crushing effect.

[0003] Crushing plates are mainly made of wear-resistant steel. To alleviate the problem of rapid and severe wear during use, wear-resistant materials are usually coated and welded onto the main wear surfaces of the crushing plates to reinforce them. However, this method only addresses the symptoms, not the root cause. Furthermore, the surface reinforcement welding of the crushing plates is a complex operation that consumes a lot of time and resources, and the final wear resistance of the crushing plates is not satisfactory.

[0004] Therefore, there is an urgent need for a crushing plate for screening and crushing machines that is simpler to operate, has better wear resistance, and can be used for a longer period of time. Utility Model Content

[0005] The purpose of this invention is to solve the problems of rapid and severe wear of crushing plates in existing screening and crushing machines used for crushing ores, and the cumbersome and inefficient nature of existing repair and maintenance methods. This application provides a crushing plate for a screening and crushing machine. By setting crushing teeth at different angles, it can effectively alleviate the impact stress of raw materials such as ores on the surface of the crushing plate during the crushing process, reduce the intensity of the impact of raw materials such as ores on the crushing plate per unit area, effectively delay the wear of the crushing plate, and significantly extend the service life of the crushing plate.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a crushing plate for a screening crusher, including a crushing plate body and multiple sets of crushing plate teeth disposed on the surface of the crushing plate body; at least one plate tooth is protruding from the surface of the crushing plate teeth, and main teeth and multiple auxiliary teeth are embedded on the surface of the plate teeth, and multiple protective teeth are also embedded on the side wall surface of the plate teeth near the auxiliary teeth.

[0008] Preferably, one side wall of the tooth plate is provided with an inclined slope, and the protective tooth is embedded in the inclined slope of the tooth plate.

[0009] Preferably, the number of protective teeth is 2-8, and the multiple protective teeth are evenly spaced.

[0010] Preferably, the main tooth and the auxiliary tooth are arranged side by side with a gap, and the main tooth is located on the side of the auxiliary tooth away from the protective tooth.

[0011] Preferably, the crushing plate teeth include two plates, and a reinforcing rib is disposed between the two plates, the reinforcing rib protruding from the surface of the crushing plate teeth.

[0012] Preferably, the teeth are long plates, and multiple sets of the breaking teeth are arranged in parallel along the direction in which the teeth are set.

[0013] Preferably, in the plurality of sets of crushing plates, the crushing plate tooth in the middle is located in front of the crushing plate teeth on both sides, so that the plurality of sets of crushing plates are arranged in a V-shape.

[0014] Preferably, a plurality of positioning mounting bolts are provided on the surface of the crushing plate near the crushing plate teeth.

[0015] The technical solution of this utility model has the following beneficial effects:

[0016] The crushing plate for the screening and crushing machine of this utility model is equipped with a variety of crushing teeth on the surface of the plate teeth and the inclined slope of the side. By setting the crushing teeth at different angles, the impact stress of raw materials such as ore on the surface of the crushing plate during the crushing process can be effectively relieved, and the stress can be transferred along the inclined slope to the reinforcing rib, thereby reducing the impact force of the ore on a small area of ​​the crushing plate, thus effectively delaying the wear of the crushing plate and significantly extending the service life of the crushing plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the broken plate in Example 1;

[0018] Figure 2 This is a schematic diagram of the structure of the crushing plate teeth in Example 1;

[0019] Figure 3 This is a cross-sectional view of the fracture plate teeth in Example 1.

[0020] Reference numerals: 1-Crushing plate body, 11-Positioning mounting bolt, 2-Crushing plate teeth, 21-Plate teeth, 22-Main teeth, 23-Auxiliary teeth, 24-Protective teeth, 25-Reinforcing ribs. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Where specific conditions are not specified in the embodiments, they are performed according to conventional conditions or conditions recommended by the manufacturer; where the manufacturers of instruments, equipment, reagents, or raw materials are not specified, they are all conventional products that can be purchased commercially. The following are specific embodiments in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3 As shown, this embodiment provides a crushing plate for a screening crusher, including a crushing plate body 1 and multiple sets of crushing plate teeth 2 disposed on the surface of the crushing plate body 1; two teeth 21 are protruding from the surface of the crushing plate teeth 2, and a reinforcing rib 25 is disposed between the two teeth 21. The reinforcing rib 25 protrudes from the surface of the crushing plate teeth 2. A main tooth 22 and two auxiliary teeth 23 are embedded on the surface of the teeth 21. The main tooth 22 and the auxiliary teeth 23 are arranged side by side with intervals. An inclined slope is provided on one side wall of the teeth 21. Three protective teeth 24 are also embedded on the inclined slope of the teeth 21 near the auxiliary teeth 23. The three protective teeth 24 are evenly spaced. The main tooth 22 is located on the side of the auxiliary teeth 23 away from the protective teeth 24.

[0023] The main teeth 22 and auxiliary teeth 23 are polygonal materials that fit the screening and crushing plate teeth 2. They are made of hard alloy composed of a hard phase (refractory metal carbide) and 6-25 wt% binder phase, which maximizes the protection of the shape and size of the steel plate teeth. Based on the multiple tooth structure in this embodiment, it can further delay wear and increase product service life. The protective teeth 24 are cylindrical in shape and are also made of hard alloy composed of a hard phase (refractory metal carbide) and 6-25 wt% binder phase. They have a diameter of 8-12 mm, a height of 8-30 mm, and are 2-8 in number. By embedding multiple protective teeth 24 on the inclined surface of the plate teeth 21, the shape and size of the steel plate teeth can be protected to the maximum extent, thereby delaying wear and increasing product service life. In addition, those skilled in the art can also select other commonly used existing hard alloy materials that are more suitable for actual use to better meet the processing needs of different raw materials and different working conditions.

[0024] In this embodiment, the crushing plate has a variety of crushing teeth on the surface of the plate teeth 21 and the inclined slope of the side. By setting crushing teeth at different angles, the impact stress of raw materials such as ore on the surface of the crushing plate during the crushing process can be effectively relieved, and the stress can be transferred along the inclined slope to the reinforcing rib 25, thereby reducing the impact force of the ore on a small area of ​​the crushing plate, thus effectively delaying the wear of the crushing plate and significantly extending the service life of the crushing plate.

[0025] In this embodiment, the plate teeth 21 are long plates, and multiple sets of crushing plate teeth 2 are arranged in parallel along the setting direction of the plate teeth 21; among the multiple sets of crushing plate teeth 2, the crushing plate teeth 2 arranged in the middle are located in front of the crushing plate teeth 2 arranged on both sides, so that the multiple sets of crushing plate teeth 2 are arranged in a V-shape.

[0026] In this embodiment, a plurality of positioning mounting bolts 11 are provided on the surface of the crushing plate 1 near the crushing plate teeth 2, for positioning and transferring the crushing plate 1 into the screening crusher, so as to facilitate disassembly or replacement during subsequent maintenance and repair.

[0027] In practical processing, those skilled in the art can securely weld the main teeth 22, auxiliary teeth 23, and protective teeth 24 to the plate teeth 21 according to the differences in stress conditions experienced by different parts during operation. Specific parameters such as the spacing can be adjusted according to the applied working conditions to maintain their stable position during operation, thus delaying the wear of the crushing plate and significantly extending its service life. Furthermore, depending on the application requirements, those skilled in the art can also choose to apply a weldable wear-resistant coating material to the surfaces of these different crushing teeth based on the structure of the crushing plate.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A crushing plate for a screening and crushing machine, characterized in that, It includes a crushing plate (1) and multiple sets of crushing plate teeth (2) disposed on the surface of the crushing plate (1); The surface of the crushing plate tooth (2) is provided with at least one plate tooth (21), the surface of the plate tooth (21) is provided with a main tooth (22) and a plurality of auxiliary teeth (23), and the side wall surface of the plate tooth (21) near the auxiliary teeth (23) is also provided with a plurality of protective teeth (24).

2. The crushing plate for a screening and crushing machine according to claim 1, characterized in that, The plate tooth (21) has an inclined slope on one side wall, and the protective tooth (24) is embedded in the inclined slope of the plate tooth (21).

3. The crushing plate for a screening and crushing machine according to claim 2, characterized in that, The number of the protective teeth (24) is 2-8, and the multiple protective teeth (24) are evenly spaced.

4. The crushing plate for a screening and crushing machine according to claim 1, characterized in that, The main tooth (22) and the auxiliary tooth (23) are arranged side by side with a gap, and the main tooth (22) is located on the side of the auxiliary tooth (23) away from the protective tooth (24).

5. The crushing plate for a screening and crushing machine according to claim 1, characterized in that, The crushing plate tooth (2) includes two plate teeth (21), and a reinforcing rib (25) is arranged between the two plate teeth (21), the reinforcing rib (25) protruding from the surface of the crushing plate tooth (2).

6. The crushing plate for a screening and crushing machine according to claim 1, characterized in that, The plate teeth (21) are long plates, and multiple sets of the breaking plate teeth (2) are arranged in parallel along the setting direction of the plate teeth (21).

7. The crushing plate for a screening and crushing machine according to claim 6, characterized in that, In the multiple sets of the crushing plate teeth (2), the crushing plate teeth (2) arranged in the middle are located in front of the crushing plate teeth (2) arranged on both sides, so that the multiple sets of the crushing plate teeth (2) are arranged in a V-shape.

8. The crushing plate for a screening and crushing machine according to claim 1, characterized in that, Multiple positioning mounting bolts (11) are provided on the surface of the crushing plate (1) near the crushing plate teeth (2).

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