Coal mill screen plate mounting structure

Abstract

The utility model relates to coal crusher sieve plate installation technical field, and disclose a kind of coal crusher sieve plate installation structure, including shell, adjusting mechanism is arranged on the shell inner wall, installation mechanism is arranged in the adjusting mechanism, the adjusting mechanism includes fixed plate and screening frame, the fixed plate left and right equidistant symmetry fixed connection in shell inner wall front and rear two sides close to bottom, the screening frame front and rear symmetry upper and lower sliding connection in shell inner wall front and rear two sides, two screening frame bottom left and right equidistant fixed connection have screw rod. By setting adjusting mechanism, including fixed plate and the screening frame that can be upper and lower sliding connection, the flexible adjustment of sieve plate height is realized, frame is cooperated with the hole on fixed plate by screw rod, and fastening is carried out using first nut and second nut, so that sieve plate can be height adjusted according to actual needs, to adapt to the screening demand of different granularity coal, improve the adaptability and screening efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of coal crusher screen plate installation technology, specifically a coal crusher screen plate installation structure. Background Technology

[0002] In the coal processing and handling industry, coal crushers are a key piece of equipment widely used in the crushing and screening of coal to ensure that the particle size of the coal meets the requirements of subsequent processes or combustion. The coal crusher screens the crushed coal through its internal screen plate, separating the fine coal particles that meet the requirements, while the coarse particles that do not meet the requirements are returned to the crushing chamber for further crushing. Therefore, the installation structure and stability of the screen plate directly affect the working efficiency and screening quality of the coal crusher.

[0003] Traditional screen plate installations mostly use a fixed connection method. This design may meet basic production needs during the initial installation, but its limitations gradually become apparent once the installation is completed and put into operation. Specifically, the position and angle of the screen plate with a fixed connection are determined after installation and cannot be flexibly adjusted according to changes in materials, screening efficiency requirements, or equipment wear during the actual production process. Utility Model Content

[0004] The purpose of this utility model is to provide a screen plate installation structure for a coal crusher to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screen plate installation structure for a coal crusher, including a housing, an adjustment mechanism provided on the inner wall of the housing, and an installation mechanism provided inside the adjustment mechanism;

[0006] The adjustment mechanism includes a fixed plate and a screening frame. The fixed plate is symmetrically and equidistantly fixed to the front and rear sides of the inner wall of the machine casing near the bottom. The screening frame is symmetrically and slidably connected to the front and rear sides of the inner wall of the machine casing. The bottom of the two screening frames is fixedly connected to lead screws equidistantly and equidistantly. The lead screws are threaded with a first nut and a second nut.

[0007] Preferably, the top of the fixing plate has a hole with a diameter larger than that of the lead screw, and the surface of the lead screw is inserted into the hole.

[0008] Preferably, there are two first nuts located above the first fixing plate, and two second nuts located below the fixing plate.

[0009] Preferably, the installation mechanism includes an arc-shaped groove, which is formed on the top of the screening rack. Screening plates are symmetrically connected to the arc-shaped groove and slide up and down. A limiting block is fixedly connected to the inner wall of the arc-shaped groove. Two screening plates are provided with corresponding limiting grooves near the limiting block. An installation block is symmetrically connected to the inner wall of the arc-shaped groove and slides up and down.

[0010] Preferably, the limiting block and the limiting groove limit the two screening plates to prevent them from shaking during installation.

[0011] Preferably, the bottom of the mounting block is in contact with the top edge of the screening plate.

[0012] Preferably, the mounting block is fixed to the inner wall of the arc-shaped groove by bolts, thereby limiting and fixing the two screening plates.

[0013] Compared with the prior art, the present invention provides a screen plate installation structure for a coal crusher, which has the following advantages:

[0014] 1. The screen plate installation structure of this coal crusher, through the setting of an adjustment mechanism, including a fixed plate and a screen frame that can be slidably connected up and down, realizes the flexible adjustment of the screen plate height. The frame is engaged with the hole on the fixed plate by a screw and is fastened by the first nut and the second nut, so that the screen plate height can be adjusted according to actual needs to adapt to the screening requirements of coal of different particle sizes, thereby improving the adaptability and screening efficiency of the equipment.

[0015] 2. The screen plate installation structure of this coal crusher features an arc-shaped groove design in the installation mechanism, providing a stable installation foundation for the screen plate. The limiting blocks set inside the arc-shaped groove cooperate with the limiting grooves on the screen plate to effectively prevent shaking of the screen plate during installation and operation, ensuring the stability and reliability of the screening process. Simultaneously, the mounting blocks are fixed to the inner wall of the arc-shaped groove with bolts, further reinforcing the installation of the screen plate and improving the overall structural stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 This is a three-dimensional sectional view of the front of the structural housing of this utility model;

[0019] Figure 3 for Figure 2 Enlarged 3D structural diagram at point A;

[0020] Figure 4 This is a three-dimensional schematic diagram of the structural screening plate and mounting block of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of this utility model.

[0022] In the diagram: 1. Casing; 2. Adjustment mechanism; 21. Fixing plate; 22. Screening rack; 23. Lead screw; 24. First nut; 25. Second nut; 3. Installation mechanism; 31. Arc groove; 32. Screening plate; 33. Limiting block; 34. Limiting groove; 35. Installation block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] This utility model provides the following technical solution:

[0026] Example 1

[0027] Please see Figure 1-3 This utility model provides a technical solution: a screen plate installation structure for a coal crusher, including a housing 1, an adjustment mechanism 2 provided on the inner wall of the housing 1, and an installation mechanism 3 provided inside the adjustment mechanism 2;

[0028] The adjustment mechanism 2 includes a fixed plate 21 and a screening frame 22. The fixed plate 21 is symmetrically and equidistantly fixed to the front and rear sides of the inner wall of the machine casing 1 near the bottom. The screening frame 22 is symmetrically and slidably connected to the front and rear sides of the inner wall of the machine casing 1. The bottom of the two screening frames 22 is equidistantly and equidistantly fixed with lead screws 23. The surface of the lead screws 23 is threaded with a first nut 24 and a second nut 25.

[0029] The top of the fixing plate 21 has a hole with a diameter larger than that of the lead screw 23, and the surface of the lead screw 23 is inserted into the hole.

[0030] There are two first nuts 24 located above the first fixing plate 21, and there are two second nuts 25 located below the fixing plate 21.

[0031] Example 2

[0032] Please see Figure 4-5 Furthermore, based on Embodiment 1, the installation mechanism 3 is obtained.

[0033] The mounting mechanism 3 includes an arc-shaped groove 31, which is located at the top of the screening rack 22. Screening plates 32 are symmetrically connected to the arc-shaped groove 31 in the left and right and in the up and down. Limiting blocks 33 are fixedly connected to the inner wall of the arc-shaped groove 31. Two screening plates 32 are provided with corresponding limiting grooves 34 near the limiting blocks 33. Mounting blocks 35 are symmetrically connected to the inner wall of the arc-shaped groove 31 in the left and right and in the up and down.

[0034] The limiting block 33 and the limiting groove 34 limit the two screening plates 32 to prevent them from shaking during installation.

[0035] The bottom of the mounting block 35 fits into the top edge of the screening plate 32.

[0036] The mounting block 35 is fixed to the inner wall of the arc-shaped groove 31 by bolts, thereby limiting and fixing the two screening plates 32.

[0037] In actual operation, when this device is in use, the fixing plate 21 is symmetrically and equidistantly fixed to the front and rear sides of the inner wall of the housing 1 near the bottom, providing a stable support base for the screening frame 22. The top of the fixing plate 21 has a hole with a diameter larger than that of the lead screw 23, allowing the lead screw 23 to be smoothly inserted and adjusted vertically. The screening frame 22 is symmetrically and slidably connected to the front and rear sides of the inner wall of the housing 1. This design allows the screening frame 22 to be adjusted vertically according to actual needs, thereby changing the height and position of the screening plate 32. The bottom of the two screening frames 22 is equidistantly fixed with lead screws 23, and the surface of the lead screws 23 is threaded... The screen 22 is connected by a first nut 24 and a second nut 25. There are two first nuts 24 located above the fixed plate 21, and two second nuts 25 located below the fixed plate 21. By rotating the first nuts 24 and the second nuts 25, the height of the screen frame 22 relative to the fixed plate 21 can be adjusted, thereby achieving precise adjustment of the height of the screen plate 32. When it is necessary to raise the position of the screen plate 32, the first nuts 24 can be rotated to move it upward, while the second nuts 25 can be rotated to move it downward, thereby pushing the screen frame 22 and the screen plate 32 upward as a whole. Conversely, when it is necessary to lower the position of the screen plate 32, the opposite operation is performed.

[0038] An arc-shaped groove 31 is formed at the top of the screening frame 22, providing installation space for the screening plate 32. The design of the arc-shaped groove 31 helps to disperse the impact force generated during the screening process, improving the stability and service life of the screening plate 32. The screening plate 32 is symmetrically connected to the arc-shaped groove 31. This design allows the screening plate 32 to be finely adjusted according to actual needs to ensure its tight fit with other parts of the coal crusher. At the same time, a corresponding limiting groove 34 is formed near the limiting block 33 of the screening plate 32, which cooperates with the limiting block 33 fixedly connected to the inner wall of the arc-shaped groove 31 to limit the screening plate 32 and prevent it from shaking or shifting during installation and use. The inner wall of the arc-shaped groove 31 is symmetrically connected to the mounting block 35, which slides up and down. The bottom of the mounting block 35 fits against the top edge of the screening plate 32. The mounting block 35 is fixed to the inner wall of the arc-shaped groove 31 by bolts, thereby further limiting and fixing the two screening plates 32 to ensure their stability and reliability during use.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A screen plate mounting structure for a coal crusher, comprising a housing (1), characterized in that: An adjustment mechanism (2) is provided on the inner wall of the housing (1), and an installation mechanism (3) is provided inside the adjustment mechanism (2). The adjustment mechanism (2) includes a fixed plate (21) and a screening rack (22). The fixed plate (21) is symmetrically and equidistantly fixed to the front and rear sides of the inner wall of the casing (1) near the bottom. The screening rack (22) is symmetrically and slidably connected to the front and rear sides of the inner wall of the casing (1). The bottom of the two screening racks (22) is equidistantly fixed with screw rods (23). The screw rods (23) are threaded with a first nut (24) and a second nut (25).

2. The screen plate installation structure for a coal crusher according to claim 1, characterized in that: The top of the fixing plate (21) has a hole with a diameter larger than that of the lead screw (23), and the surface of the lead screw (23) is inserted into the hole.

3. The screen plate installation structure for a coal crusher according to claim 1, characterized in that: There are two first nuts (24) located above the first fixing plate (21), and there are two second nuts (25) located below the fixing plate (21).

4. The screen plate installation structure for a coal crusher according to claim 1, characterized in that: The installation mechanism (3) includes an arc-shaped groove (31), which is located on the top of the screening rack (22). Screening plates (32) are symmetrically connected to the arc-shaped groove (31) and slide up and down. A limiting block (33) is fixedly connected to the inner wall of the arc-shaped groove (31). The two screening plates (32) are provided with corresponding limiting grooves (34) near the limiting block (33). An installation block (35) is symmetrically connected to the inner wall of the arc-shaped groove (31).

5. The screen plate installation structure for a coal crusher according to claim 4, characterized in that: The limiting block (33) and the limiting groove (34) limit the two screening plates (32).

6. The screen plate installation structure for a coal crusher according to claim 4, characterized in that: The bottom of the mounting block (35) is attached to the top edge of the screening plate (32).

7. The screen plate installation structure for a coal crusher according to claim 4, characterized in that: The mounting block (35) is fixed to the inner wall of the arc groove (31) by bolts.

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