Elastic relaxation type polyurethane sieve plate

Abstract

The utility model discloses an elastic flip-flow type polyurethane sieve plate, and relates to the technical field of flip-flow sieves. The screening device comprises an outer frame and a screening assembly, the outer frame is vertically through, the screening assembly is fixed in the outer frame, a movable opening is fixed to one side of the inner wall of the outer frame, the screening assembly comprises a screening plate body, a fixing strip and a movable bolt, the fixing strip is fixed to one side of the screening plate body, and the fixing strip is movably connected into the movable opening. The sides, away from the sieve plate body, of the fixing strips are rotationally connected with movable bolts, threaded cylinders are fixed to the outer side faces of the sides, provided with the openings, in the outer frames, and the movable bolts are in threaded connection in the threaded cylinders. Through the arrangement of the outer frame and the screening assembly, the problems that the relaxation degree of an elastic relaxation type polyurethane screen plate cannot be adjusted, and the screen plate is prone to deformation and damage after being impacted by materials are solved.

Description

Technical Field

[0001] This utility model belongs to the field of tension screen technology, and in particular relates to an elastic tension polyurethane screen plate. Background Technology

[0002] Elastic tension polyurethane screen plates are used in vibrating screening machinery. They feature high elasticity and long service life. The high elasticity of the screen plate effectively improves the screening efficiency of the vibrating screen. Made of three-component polyurethane material, they have good wear resistance and tear resistance, extending the service life of the screen plate. The secondary vibration characteristics of the polyurethane screen plate give it a self-cleaning function, reducing the possibility of screen clogging. It is widely used in material screening, dewatering, and demediuming processes in industries such as coal, metallurgy, mining, power, and chemicals. It is particularly suitable for processing fine, sticky, and wet materials with high viscosity and moisture content. However, it still has the following drawbacks in practical use:

[0003] When the elastic tension polyurethane screen plate is in operation, the material passes through it and is screened by the vibration of the material and the screen plate. However, the tension of the screen plate is relatively fixed during the material screening process, which makes the operation inconvenient when facing working conditions with different tension requirements.

[0004] Secondly, during the screening process, a large amount of material passes through, and the vibration and impact of the material can cause the screen plate to be subjected to a large impact. After being subjected to the impact, the screen plate will be deformed and damaged. Utility Model Content

[0005] The purpose of this utility model is to provide an elastically relaxed polyurethane screen plate. By setting an outer frame and screening components, it solves the problems that the elastically relaxed polyurethane screen plate cannot adjust the degree of tension and that the screen plate is easily deformed and damaged after being impacted by materials.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an elastic tension polyurethane screen plate, comprising an outer frame and a screening assembly. The outer frame is vertically continuous, and the screening assembly is fixed inside the outer frame. A movable opening is fixed on one side of the inner wall of the outer frame. The screening assembly includes a screen plate body, a fixing strip, and a movable bolt. The fixing strip is fixed on one side of the screen plate body and is movably connected to the movable opening. The movable bolt is rotatably connected to the side of the fixing strip away from the screen plate body. A threaded cylinder is fixed on the outer surface of the side with the opening inside the outer frame, and the movable bolt is threadedly connected to the threaded cylinder. During operation, the screening assembly is connected to the outer frame. During operation, the movable opening on the outer frame is movably connected to the fixing strip. During operation, the screen plate body on the screening assembly provides screening for passing materials. The movable bolt on the fixing strip adjusts the tension of the screen plate body as it rotates.

[0008] Furthermore, an installation frame is fixed inside the outer frame, and an inner groove is provided on each of the three side walls of the installation frame. The side of the sieve plate body away from the fixing strip is fixed in the inner groove, and the two ends of the sieve plate body are respectively movably connected in the inner groove. The inner groove in the installation frame inside the outer frame fixes the sieve plate body therein.

[0009] Furthermore, support rods are fixed at equal intervals inside the outer frame below the mounting frame. The central axis of the support rods is perpendicular to the length direction of the outer frame. During the operation of the mounting frame, the support rods on it support the main body of the screen plate.

[0010] Furthermore, mounting plates are fixed to the upper parts of both ends of the outer frame. The top of the mounting plate has vertically penetrating mounting holes at equal intervals along the center line parallel to the long side. When the outer frame is in operation, the mounting plates and mounting holes cooperate to install the outer frame.

[0011] Furthermore, the outer frame and the threaded cylinder have symmetrically arranged insertion holes on the same side. The screening assembly also includes movable rods. Two movable rods are symmetrically fixed to the side of the fixing bar away from the screen plate body and are respectively movably inserted into the two insertion holes. When the outer frame is working, the insertion holes on it are movably connected to the movable rods and are movably connected to the outer frame through the movable rods to maintain the stability of the fixing bar when it is working in the outer frame.

[0012] Furthermore, the screening component also includes sieve holes. The top of the sieve plate body is vertically and uniformly perforated with sieve holes. When the sieve plate body is in operation, the material passes through its surface and is screened through the sieve holes.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of the inability to adjust the tension of the elastic polyurethane screen body by setting an outer frame and screening components. During the vibration of the screen body, the material vibrates and passes over the screen body within the outer frame. During the vibration of the material, it passes through the screen holes on the screen body and vibrates and falls through the screen holes. The screen body is supported by the support rods in the outer frame. During the operation of the screen body, it is first necessary to determine the tension of the screen body. Then, the movable bolt on the fixed bar is rotated. Through the threaded connection between the movable bolt and the threaded cylinder, the fixed bar is driven to move. With the cooperation of the movable rod connected in the movable hole, the fixed bar pulls the screen body, changing the tension of the screen body. This allows the tension of the screen body to be easily adjusted and is suitable for various working conditions.

[0015] This invention solves the problem of easy deformation and damage of the screen plate body after being impacted by materials by setting an outer frame and screening components. When the material enters the outer frame, the screen plate body vibrates under the vibration of the tension screen, which in turn causes the material passing over the top of the screen plate body to vibrate, so that the material is screened by the screen plate body. At the same time, the screen plate body drives the material to vibrate in coordination with the vibration of the material, and is supported by the support rods in the outer frame. Under the support, the deformation of the screen plate body caused by the falling material is reduced, and the durability is increased. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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 A three-dimensional view of an assembly structure for an elastically relaxed polyurethane sieve plate.

[0018] Figure 2 This is a three-dimensional structural diagram of the outer frame;

[0019] Figure 3 This is a side view of the three-dimensional structure of the outer frame;

[0020] Figure 4 A 3D structural diagram of the selected components;

[0021] Figure 5 This is a three-dimensional structural diagram of the fixing strip.

[0022] Figure label:

[0023] 1. Outer frame; 101. Movable opening; 102. Threaded cylinder; 103. Mounting frame; 104. Inner groove; 105. Support rod; 106. Mounting plate; 107. Mounting hole; 108. Insertion hole; 2. Screening assembly; 201. Screen plate body; 202. Screen hole; 203. Fixing strip; 204. Movable rod; 205. Movable bolt. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-4 This utility model is an elastic tension polyurethane screen plate, including an outer frame 1 and a screening component 2. The outer frame 1 is vertically through, and the screening component 2 is fixed inside the outer frame 1. When the outer frame 1 is working, the screening component 2 is connected therein. A movable opening 101 is fixed on one side of the inner wall of the outer frame 1, and a fixing strip 203 is movably connected to the movable opening 101 on the outer frame 1. The screening component 2 includes a screen plate body 201, a fixing strip 203, and movable bolts 205. A fixing strip 203 is fixed on one side of the screen plate body 201. When the screen plate body 201 is working, the material passing through it is screened. 3. A movable connection is made in the movable opening 101 to support the screen plate body 201. A fixing strip 203 is movably connected in the movable opening 101. A movable bolt 205 is rotatably connected to the side of the fixing strip 203 away from the screen plate body 201. A threaded cylinder 102 is fixed on the outer side of the side with the opening in the outer frame 1. The movable bolt 205 is threadedly connected in the threaded cylinder 102. When the movable bolt 205 is rotated, the screen plate body 201 is pushed and pulled in the outer frame 1 through the threaded connection of the movable bolt 205 in the threaded cylinder 102, thereby changing the tension force on the screen plate body 201 in the outer frame 1.

[0026] Specifically, an installation frame 103 is fixed inside the outer frame 1. An inner groove 104 is provided on each of the three side walls of the inner side of the installation frame 103. The side of the sieve plate body 201 away from the fixing strip 203 is fixed in the inner groove 104. The two ends of the sieve plate body 201 are movably connected in the inner groove 104. The inner groove 104 on the installation frame 103 connects the sieve plate body 201 therein, and the end of the sieve plate body 201 is movably connected inside the outer frame 1, so that when the fixing strip 203 is pulled, the sieve plate body 201 is pulled.

[0027] Furthermore, support rods 105 are fixed at equal intervals inside the outer frame 1 below the mounting frame 103. The central axis of the support rods 105 is perpendicular to the length direction of the outer frame 1. When the mounting frame 103 is working, the support rods 105 on it provide support for the screen plate body 201 in the outer frame 1, reducing the deformation of the screen plate body 201 during operation and increasing the durability of the screen plate body 201.

[0028] Furthermore, mounting plates 106 are fixed to the upper parts of both ends of the outer frame 1. The top of the mounting plate 106 has vertically penetrating mounting holes 107 at equal intervals along the center line parallel to the long side. During the installation of the outer frame 1, after the mounting plate 106 is placed in the installation position, the mounting holes 107 are set in the installation position on the tension screen. Then, the mounting bolts are inserted into the mounting holes 107 on the mounting plate 106 and screwed into the installation position. The outer frame 1 is then installed on the tension screen.

[0029] The operation process of this embodiment is as follows: During operation, when the material enters the outer frame 1, the screen plate body 201 vibrates under the vibration of the tension screen, which in turn causes the material passing over the top of the screen plate body 201 to vibrate, so that the material is screened by the screen plate body 201. At the same time, the screen plate body 201 drives the material to vibrate in coordination with the vibration of the material, and is supported by the support rod 105 in the outer frame 1. Under the support, the deformation of the screen plate body 201 caused by the falling material is reduced, and the durability is increased. Specific Implementation Example 2

[0030] Please see Figure 1-5 Based on the first specific embodiment, the outer frame 1 and the threaded cylinder 102 are symmetrically provided with insertion holes 108 on the same side. The screening component 2 also includes movable rods 204. The two movable rods 204 are symmetrically fixed on the side of the fixing strip 203 away from the screen plate body 201, and are respectively movably inserted into the two insertion holes 108. When the outer frame 1 is working, the insertion holes 108 on it are movably connected to the movable rods 204, and the two movable rods 204 are inserted into the movable holes to stabilize the position between the fixing strip 203 and the outer frame 1.

[0031] Specifically, the screening component 2 also includes a screen hole 202. The top of the screen plate body 201 is vertically and evenly provided with a screen hole 202. When the screening component 2 is working, the material passing through the top of the screen plate body 201 is screened out in the screen hole 202 and then passed below the screen plate body 201.

[0032] The operation process of this embodiment is as follows: During operation, when the sieve body vibrates, the material vibrates and passes through the sieve plate body 201 inside the outer frame 1. During the vibration of the material, the material passes through the sieve holes 202 on the sieve plate body 201 and vibrates and falls through the sieve holes 202. The sieve plate body 201 is supported by the support rod 105 in the outer frame 1. During the operation of the sieve plate body 201, it is first necessary to determine the degree of relaxation of the sieve plate body 201 during operation. Then, rotate the movable bolt 205 on the fixed bar 203. The movable bolt 205 is threadedly connected to the threaded cylinder 102, which drives the fixed bar 203 to move. Under the cooperation of the movable rod 204 being movably connected in the movable hole, the fixed bar 203 pulls the sieve plate body 201 and changes the degree of relaxation of the sieve plate body 201.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An elastic relaxation polyurethane screen comprising an outer frame (1) and a screening assembly (2), characterized in that: The outer frame (1) is arranged vertically through the interior. A screening component (2) is fixed inside the outer frame (1). A movable opening (101) is fixed on one side of the inner wall of the outer frame (1). The screening component (2) includes a screen plate body (201), a fixing strip (203), and a movable bolt (205). A fixing strip (203) is fixed on one side of the screen plate body (201). The fixing strip (203) is movably connected to the movable opening (101). The movable bolt (205) is rotatably connected to the side of the fixing strip (203) away from the screen plate body (201). A threaded cylinder (102) is fixed on the outer side of the side with the opening inside the outer frame (1). The movable bolt (205) is threadedly connected to the threaded cylinder (102).

2. An elastomeric damped polyurethane screen panel according to claim 1, characterized in that: An installation frame (103) is fixed inside the outer frame (1). An inner groove (104) is provided on the three side walls of the inner side of the installation frame (103). The side of the sieve plate body (201) away from the fixing strip (203) is fixed in the inner groove (104). The two ends of the sieve plate body (201) are respectively movably connected in the inner groove (104).

3. An elastomeric damped polyurethane screen panel according to claim 2, characterized in that: Support rods (105) are fixed at equal intervals inside the outer frame (1) below the mounting frame (103), and the central axis of the support rods (105) is perpendicular to the length direction of the outer frame (1).

4. The resilient damped polyurethane screen panel of claim 1, wherein: The upper part of both ends of the outer frame (1) is fixed with mounting plates (106), and the top of the mounting plate (106) is provided with mounting holes (107) that are vertically connected to the mounting plate (106) at equal intervals along the center line parallel to the long side.

5. The resilient damped polyurethane screen panel of claim 1, wherein: The outer frame (1) and the threaded cylinder (102) are symmetrically provided with insertion holes (108) on the same side. The screening assembly (2) also includes movable rods (204). The two movable rods (204) are symmetrically fixed on the side of the fixing strip (203) away from the screen plate body (201) and are respectively movably inserted into the two insertion holes (108).

6. An elastomeric damped polyurethane screen panel according to claim 5, wherein: The screening component (2) also includes sieve holes (202), and the top of the sieve plate body (201) is vertically and uniformly provided with sieve holes (202).

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