Wear-resistant sieve plate for coal picker

Abstract

The utility model discloses a wear-resistant sieve plate for a coal picker. The wear-resistant sieve plate comprises a base plate, a wear-resistant layer arranged on the base plate and a fixing frame, the wear-resistant layer is movably connected with the base plate through an embedding block; a threaded hole is formed in the embedding block and is matched with an adjusting bolt and a guide rail to realize horizontal position adjustment; the fixing frame comprises a side plate, a clamping block and a U-shaped locking plate, the locking plate is hung on the sieve plate to form an upper fixing point, the clamping block supports the bottom of the sieve plate through the weight of the base plate, and additional tools are not needed for installation. The mounting process can be simplified by quickly fixing and adjusting the structure, the service life of the sieve plate is prolonged, the stability is improved, the working efficiency of the coal separator is improved, and the coal separator is suitable for large-scale application.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a wear-resistant screen plate for a coal preparation machine. Background Technology

[0002] In the coal processing and mineral processing industry, the coal preparation machine is one of the key pieces of equipment, and the performance of its core component, the screen plate, directly affects the coal preparation efficiency and the service life of the equipment. The main function of the screen plate is to classify coal according to particle size through screening, while simultaneously withstanding multiple effects such as impact, abrasion, and corrosion from the material. However, in actual use, existing screen plates generally suffer from insufficient wear resistance, resulting in a short service life and requiring frequent replacement, increasing maintenance costs and downtime. Furthermore, traditional screen plate materials have poor impact resistance, making them prone to deformation or breakage under high-intensity operating environments, further affecting screening efficiency and production efficiency. Currently, although some screen plates employ surface hardening treatment or composite materials to improve wear resistance, these methods are often complex, costly, and difficult to balance wear resistance and toughness. Therefore, developing a screen plate with excellent wear resistance, strong impact resistance, and cost-effectiveness has become a pressing technical challenge in the field of coal preparation machine technology. Utility Model Content

[0003] The purpose of this utility model is to provide a wear-resistant screen plate for a coal preparation machine, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a wear-resistant screen plate for a coal preparation machine. The wear-resistant screen plate for a coal preparation machine mainly consists of: a base plate, a wear-resistant layer disposed on the base plate, and a fixing frame disposed on one side of the base plate. The base plate is the main structure, and the wear-resistant layer and the fixing frame are both installed on the base plate.

[0005] A further technical solution of this utility model is: the wear-resistant layer is movably connected to the substrate through a fitting block, and the fitting block drives the wear-resistant layer to adjust its position in the horizontal direction on the substrate.

[0006] A further technical solution of this utility model is: the fitting block is provided with a threaded hole, and the outer side of the fitting block is provided with an adjusting bolt connected to the threaded hole. By screwing the adjusting bolt into the threaded hole and cooperating with the guide rail on the substrate, the fitting block can move horizontally on the substrate.

[0007] A further technical solution of this utility model is: the substrate is provided with a guide rail that matches the interlocking block, and the wear-resistant layer can be adjusted laterally on the substrate in conjunction with the interlocking block.

[0008] A further technical solution of this utility model is: the fixing frame includes: a side plate, a locking block disposed at the bottom of the side plate, and a locking plate disposed at the top of the side plate. The locking plate is U-shaped and hangs against the screen plate to form an upper fixing point. The bottom locking block fixes the screen plate by the weight of the base plate itself, forming a bottom support point. The installer does not need to fix the screen plate with additional tools, which greatly simplifies the installation process.

[0009] A further technical solution of this utility model is: the side plate is provided with a through hole, the position of which corresponds to the mounting hole of the substrate, so that the fixing bolt can pass through the through hole and connect to the substrate.

[0010] A further technical solution of this utility model is that the locking plate is U-shaped, and its upper side is similar to the structure of a mechanical equipment clamp, which facilitates quick disassembly and installation.

[0011] A further technical solution of this utility model is: a groove is provided on the side of the card block away from the side plate, and a metal coating is provided on the surface of the groove. The groove and the metal coating make the card block fit the substrate more closely and more stably.

[0012] The beneficial effects of this utility model are as follows: The wear-resistant screen plate for coal preparation machine of this utility model has a simple structure, low cost and can be used in large quantities. The fixing frame can quickly fix the screen plate, and the weight of the base plate itself can fix the screen plate in place. The position of the wear-resistant layer can be adjusted by adjusting bolts, which not only greatly improves the service life of the screen plate, but also increases the stability and improves the working efficiency of the coal preparation machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the combination relationship of the substrate, wear-resistant layer, fixing frame and interlocking block. The wear-resistant layer is movably connected to the substrate through the interlocking block, and the fixing frame achieves rapid installation of the sieve plate through the locking block and locking plate.

[0014] Figure 2 This is a partial enlarged view of the fitting block and adjusting bolt in this utility model, showing in detail the connection method between the threaded hole in the fitting block and the adjusting bolt, as well as the moving structure of the fitting block on the substrate guide rail.

[0015] Figure 3 This is a schematic diagram of the structure of the fixing frame in this utility model, showing the specific structure of the side plate, the locking block and the locking plate. The locking block has a groove and a metal coating, and the locking plate has a "U" shaped design for easy disassembly and installation.

[0016] The attached diagram is labeled as follows: 1. Substrate; 2. Wear-resistant layer; 3. Fixing frame; 4. Fitting block; 5. Adjusting bolt; 6. Guide rail; 7. Side plate; 8. Clamping block; 9. Locking plate; 10. Through hole; 11. Groove; 12. Metal coating. Detailed Implementation

[0017] This utility model provides a wear-resistant screen plate for a coal preparation machine. It has a simple structure, is easy to install, and possesses excellent wear resistance. In practical applications, it can significantly improve the working efficiency and service life of the coal preparation machine. The following is in conjunction with the appendix... Figure 1 To be continued Figure 3 The technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0018] like Figure 1 As shown, the wear-resistant screen plate for coal preparation machines of this utility model mainly consists of a base plate 1, a wear-resistant layer 2 disposed on the base plate 1, and a fixing frame 3. The base plate 1 is the main structure of the entire screen plate, and its material can be high-strength steel or composite material to ensure that the screen plate has sufficient rigidity and load-bearing capacity. The wear-resistant layer 2 is movably connected to the base plate 1 through the interlocking block 4. This design allows the wear-resistant layer 2 to be adjusted horizontally on the base plate 1, thereby adapting to different usage requirements or compensating for positional displacement caused by wear. The fixing frame 3 is disposed on one side of the base plate 1 for quick installation and disassembly of the screen plate. At the same time, the design of the locking block 8 and the locking plate 9 simplifies the operation process, and the fixing can be completed without additional tools.

[0019] Furthermore, such as Figure 2 As shown, the fitting block 4 has a threaded hole inside and an adjusting bolt 5 connected to the threaded hole on the outside. By screwing in the adjusting bolt 5 and engaging with the guide rail 6 on the base plate 1, the fitting block 4 can move horizontally on the base plate 1. The guide rail 6 is set on the surface of the base plate 1 and matches the fitting block 4, serving as a guide to ensure that the fitting block 4 maintains stability and accuracy during movement. When it is necessary to adjust the position of the wear-resistant layer 2, the operator only needs to rotate the adjusting bolt 5 to push or pull it along the threaded hole, thereby pushing the fitting block 4 to move along the guide rail 6. This design not only improves the flexibility of the wear-resistant layer 2 but also extends the overall service life of the screen plate, because the position of the wear-resistant layer 2 can be adjusted at any time according to the actual wear condition, avoiding excessive local wear that affects the performance of the screen plate.

[0020] The specific structure of the fixing frame 3 is as follows Figure 3As shown, the device includes a side plate 7, a locking block 8 located at the bottom of the side plate 7, and a locking plate 9 located at the top of the side plate 7. The locking plate 9 has a "U"-shaped design, and its side shape is similar to the clamp structure in mechanical equipment, which facilitates quick disassembly and installation. In actual installation, the locking plate 9 hangs against the screen plate to form an upper fixing point, while the locking block 8 fixes the screen plate by the weight of the base plate 1 itself, forming a bottom support point. This two-point fixing structure greatly simplifies the installation process, and operators can complete the fixing of the screen plate without the need for additional tools. In addition, the side plate 7 is provided with through holes 10, the position of which corresponds to the mounting holes of the base plate 1, so that the fixing bolts can pass through the through holes 10 and connect to the base plate 1, further enhancing the stability of the fixing frame 3.

[0021] To improve the fit and stability between the clamping block 8 and the base plate 1, a groove 11 is provided on the side of the clamping block 8 away from the side plate 7, and the surface of the groove 11 is coated with a metal coating 12. The design of the groove 11 increases the friction between the contact surface of the clamping block 8 and the base plate 1, preventing the screen plate from sliding or loosening during operation. The metal coating 12 further improves the wear resistance and corrosion resistance of the groove 11, extending the service life of the clamping block 8. Through the above design, the fixing frame 3 can not only quickly fix the screen plate, but also maintain stable performance during long-term use.

[0022] In practical applications, the operation of the wear-resistant screen plate for coal preparation machines according to this invention is as follows: First, the base plate 1 is placed in the designated position of the coal preparation machine, and then the screen plate is quickly installed using the locking block 8 and locking plate 9 of the fixing frame 3. Specifically, the locking block 8 is first inserted into the bottom of the base plate 1, and the base plate 1 is fixed by its own weight; then the locking plate 9 is hung on the upper part of the screen plate, and the fixing bolts are passed through the through holes 10 on the side plate 7 to connect with the base plate 1, thus completing the fixing of the screen plate. Subsequently, the position of the wear-resistant layer 2 is adjusted according to actual needs. The operator only needs to rotate the adjusting bolt 5 on the outside of the interlocking block 4 to move the interlocking block 4 horizontally along the guide rail 6 on the base plate 1 until the wear-resistant layer 2 reaches the ideal position. During the operation of the coal preparation machine, the wear-resistant layer 2 directly bears the impact and friction of the material. Its adjustable design can effectively slow down the local wear rate, thereby extending the service life of the entire screen plate.

[0023] Furthermore, the wear-resistant screen plate for coal preparation machines of this invention is characterized by low cost and ease of maintenance. Due to its modular design, the components are combined through simple mechanical connections, allowing for individual replacement of damaged parts without the need to scrap the entire screen plate. For example, when the wear-resistant layer 2 becomes severely worn due to long-term use, only the interlocking block 4 needs to be disassembled and the new wear-resistant layer 2 replaced; similarly, if the fixing frame 3 is damaged, the side plate 7, the locking block 8, or the locking plate 9 can be replaced individually without replacing the entire screen plate. This design not only reduces maintenance costs but also minimizes resource waste, aligning with the concept of green environmental protection.

[0024] In summary, this wear-resistant screen plate for coal preparation machines achieves the goals of rapid installation, flexible adjustment, and high efficiency and durability through reasonable structural design and functional optimization. Its unique interlocking block 4 and guide rail 6 design provides the wear-resistant layer 2 with high flexibility, while the locking block 8 and locking plate 9 of the fixing frame 3 provide a convenient installation method. In practical applications, this screen plate can significantly improve the working efficiency of coal preparation machines and reduce maintenance costs, possessing high promotional value and market prospects.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wear-resistant screen plate for a coal preparation machine, characterized in that, The wear-resistant screen plate for the coal preparation machine is mainly composed of a base plate (1), a wear-resistant layer (2) disposed on the base plate (1), and a fixing frame (3) disposed on one side of the base plate (1). The wear-resistant layer (2) is movably connected to the base plate (1) through a fitting block (4).

2. The wear-resistant screen plate for a coal preparation machine according to claim 1, characterized in that, The fitting block (4) has a threaded hole inside, and the outer side of the fitting block (4) is provided with an adjusting bolt (5) connected to the threaded hole. The base plate (1) is provided with a guide rail (6) that matches the fitting block (4).

3. The wear-resistant screen plate for a coal preparation machine according to claim 2, characterized in that, The adjusting bolt (5) is screwed into the threaded hole and moves horizontally on the base plate (1) via the guide rail (6).

4. The wear-resistant screen plate for a coal preparation machine according to claim 1, characterized in that, The fixing frame (3) includes a side plate (7), a locking block (8) disposed at the bottom of the side plate (7), and a locking plate (9) disposed at the top of the side plate (7), the locking plate (9) being U-shaped.

5. The wear-resistant screen plate for a coal preparation machine according to claim 4, characterized in that, The side plate (7) is provided with a through hole (10), and the position of the through hole (10) corresponds to the mounting hole of the substrate (1).

6. The wear-resistant screen plate for a coal preparation machine according to claim 4, characterized in that, The card block (8) has a groove (11) on the side away from the side plate (7), and the surface of the groove (11) is coated with a metal coating (12).

7. The wear-resistant screen plate for a coal preparation machine according to claim 1, characterized in that, The wear-resistant layer (2) is positioned by means of the interlocking block (4) along the guide rail (6) on the substrate (1).

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