A fixing structure of a polyurethane screen plate of a feed screen

Abstract

The utility model discloses an embodiment provides a kind of fixed structure of polyurethane sieve plate of feed sieve, it is related to screening equipment field.Just including: main body, guide plate, right polyurethane sieve plate, sieve frame, fixed bolt assembly, polyurethane batten and left polyurethane sieve plate;Main body front side is obliquely installed with guide plate;The main body inside middle part is installed with sieve frame along front-back direction;Left polyurethane sieve plate and right polyurethane sieve plate are installed in the main body, and two are located sieve frame top end;Left polyurethane sieve plate and right polyurethane sieve plate relative side are all set with side groove;Polyurethane batten is installed in the side groove of left polyurethane sieve plate and right polyurethane sieve plate corresponding side each other;The polyurethane batten and sieve frame are connected by fixed bolt assembly.This equipment adopts the fixed bolt assembly with type structure to build a simple fixed structure, reduces left polyurethane sieve plate and right polyurethane sieve plate installation difficulty, is convenient to replace, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment, specifically to a fixing structure for a polyurethane screen plate of a feeding screen. Background Technology

[0002] The recovery of resources such as metals from waste incineration slag often involves the use of feed screens for dewatering, desliming, and dewatering. After material particle size classification, feed screens are also frequently used as feeding devices for eddy current separators. As a core component of modern screening equipment, the scientific and reliable fixing method of polyurethane screen plates directly determines screening efficiency and equipment lifespan. In high-intensity, highly corrosive operating environments, screen plates must continuously withstand the combined effects of high-frequency vibration, material impact, and complex working conditions. Traditional fixing methods commonly suffer from typical problems such as loose bolts, screen plate displacement, and uneven wear.

[0003] Due to the highly corrosive nature of waste incineration slag, the screen plates of the feed screen wear out frequently and require frequent replacement. The screen plates are mostly fixed with bolts, which lead to significant rust after a period of use; replacing the screen plates is also inconvenient. Therefore, developing a polyurethane screen plate fixing structure is of significant engineering importance for improving the overall efficiency of the equipment and optimizing its life-cycle cost.

[0004] Based on this, the present utility model is proposed. Utility Model Content

[0005] According to an embodiment of this utility model, a fixing structure for a polyurethane screen plate of a feed sieve is provided. This addresses the problems existing in the background.

[0006] In a first aspect, a fixing structure for a polyurethane screen plate of a feed sieve is provided.

[0007] The fixed structure of the polyurethane screen plate of the feeding screen includes: a main body, a guide plate, a right polyurethane screen plate, a screen frame, a fixing bolt assembly, a polyurethane pressure strip, and a left polyurethane screen plate; A guide plate is inclinedly installed on the front side of the main body; a screen frame is installed in the middle of the inner side of the main body along the front-back direction; the left polyurethane screen plate and the right polyurethane screen plate are installed inside the main body and are located at the top of the screen frame; a side groove is opened on the opposite side of the left polyurethane screen plate and the right polyurethane screen plate; a polyurethane pressure strip is installed in the side groove on the corresponding side of the left polyurethane screen plate and the right polyurethane screen plate; the polyurethane pressure strip and the screen frame are connected by a fixing bolt assembly.

[0008] Preferably, the thickness of the polyurethane pressure strip is adapted to the thickness of the side grooves opened on the left and right polyurethane screen plates.

[0009] Preferably, the polyurethane strip has screw holes that are adapted to the size of the fixing bolt assembly.

[0010] Preferably, the left polyurethane sieve plate, the right polyurethane sieve plate, and the polyurethane pressure strip are made of polyurethane material.

[0011] Preferably, the screen frame is provided with an irregular groove, and a crossbeam steel plate is also installed on the screen frame, with a cross-shaped through groove provided on the crossbeam steel plate.

[0012] Preferably, the main body of the fixing bolt assembly is provided with a sliding section, a limiting section and an extension section along the vertical direction; the sliding section and the limiting section are arranged in a U-shape, and the width of the limiting section is adapted to the through groove size on the crossbeam steel plate.

[0013] Preferably, it further includes: a rotating seat, limiting teeth, and a limiting mechanism; the guide plate is rotatably mounted on the front side of the main body via the rotating seat; there are several limiting teeth, which are equidistantly mounted on the rotating seat along the circumference; the limiting mechanism is mounted on the bottom end of the main body, and the limiting mechanism is controlled to cooperate with the limiting teeth to limit the rotation seat.

[0014] Preferably, the limiting mechanism includes: a mounting base, a slide groove, a spring, a telescopic rod, a top rod, and a push rod; The mounting base is connected to the lower surface of the main body; the sliding groove is formed on the side wall of the mounting base; the spring is installed in the mounting base, and one end is fixedly connected to the inner wall of the mounting base; the telescopic rod is slidably installed in the mounting base, one end of which is connected to the other end of the spring, and the other end of the telescopic rod extends out of the front side of the mounting base; the push rod is installed at the end of the telescopic rod that extends out of the mounting base and engages with the limiting tooth; the push rod is installed on the side wall of the telescopic rod and extends out of the sliding groove.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages: This utility model uses a fixing bolt assembly with an L-shaped structure to construct a simple fixing structure, which reduces the installation difficulty of the left and right polyurethane screen plates, facilitates replacement, and is highly practical.

[0016] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0017] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1A partial cross-sectional schematic diagram of the fixing structure of the polyurethane screen plate of the feed sieve according to an embodiment of the present invention is shown. Figure 2 A cross-sectional view of the screen frame, polyurethane pressure strip, and fixing bolt assembly of the fixed structure of the polyurethane screen plate of the feeding screen according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of the crossbeam steel plate structure of the fixing structure of the polyurethane screen plate of the feed sieve according to an embodiment of the present invention is shown. Figure 4 A front sectional view of the screen frame, polyurethane pressure strip and fixing bolt assembly of the fixing structure of the polyurethane screen plate of the feeding screen according to an embodiment of the present invention is shown. Figure 5 A schematic diagram of the fixing bolt assembly of the fixing structure of the polyurethane screen plate of the feed sieve according to an embodiment of the present invention is shown. Figure 6 A side view of the fixing structure of the polyurethane screen plate of the feed sieve according to another embodiment of the present invention is shown; Figure 7 An enlarged view of section A of the fixing structure of the polyurethane screen plate of the feed sieve according to another embodiment of the present invention is shown.

[0018] The attached figures are labeled as follows: 100. Main body; 200. Guide plate; 201. Rotating seat; 202. Limiting tooth; 1. Right polyurethane screen plate; 2. Screen frame; 21. Irregular groove; 22. Crossbeam steel plate; 3. Fixing bolt assembly; 31. Sliding section; 32. Limiting section; 33. Extension section; 4. Polyurethane pressure strip; 5. Left polyurethane screen plate; 6. Limiting mechanism; 61. Mounting seat; 62. Slide groove; 63. Spring; 64. Telescopic rod; 65. Top rod; 66. Push rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the fixing structure of the polyurethane screen plate of the feeding screen includes: a main body 100, a guide plate 200, a right polyurethane screen plate 1, a screen frame 2, a fixing bolt assembly 3, a polyurethane pressure strip 4, and a left polyurethane screen plate 5.

[0023] The main body 100 has a U-shaped vertical projection, with a guide plate 200 installed at an angle on the front side to facilitate the discharge of materials that cannot pass through the sieve. A screen frame 2 is installed along the front-to-back direction in the middle of the inner side of the main body 100. A left polyurethane screen plate 5 and a right polyurethane screen plate 1 are installed inside the main body 100, located at the top of the screen frame 2, supporting the opposite edges of the left and right polyurethane screen plates 5 and 1 through the screen frame 2. Both the left and right polyurethane screen plates 5 and 1 have arrayed screen holes. Strip-shaped support plates are provided at both ends of the inner side of the main body 100 to support the opposite edges of the left and right polyurethane screen plates 5 and 1. Side grooves are provided on the opposite sides of both the left and right polyurethane screen plates 5 and 1, giving them an L-shape in their front view. The polyurethane pressure strip 4 is installed in the corresponding side grooves of the left polyurethane screen plate 5 and the right polyurethane screen plate 1, and is located above the screen frame 2. The polyurethane pressure strip 4 and the screen frame 2 are connected by the fixing bolt assembly 3. The polyurethane pressure strip 4 and the screen frame 2 limit the upper and lower sides of the left polyurethane screen plate 5 and the right polyurethane screen plate 1 respectively, thereby achieving the fixed installation of the left polyurethane screen plate 5 and the right polyurethane screen plate 1. In addition, the thickness of the polyurethane pressure strip 4 is adapted to the thickness of the side grooves opened on the left polyurethane screen plate 5 and the right polyurethane screen plate 1, ensuring that the upper surface of the polyurethane pressure strip 4 is flush with the upper surface of the left polyurethane screen plate 5 and the right polyurethane screen plate 1 after installation. At the same time, the polyurethane pressure strip 4 is provided with screw holes that are adapted to the size of the fixing bolt assembly 3, which ensures that the upper surface of the fixing bolt assembly 3 is flush with the upper surface of the polyurethane pressure strip 4 after installation, avoiding the fixing bolt assembly 3 from protruding and affecting the use.

[0024] In this embodiment, the left polyurethane screen plate 5, the right polyurethane screen plate 1, and the polyurethane pressure strip 4 are all made of polyurethane material. Polyurethane can continuously withstand the combined effects of high-frequency vibration, material impact, and complex working conditions in high-intensity, highly corrosive operating environments, which helps to improve the service life of the equipment.

[0025] The screen frame 2 has an irregular groove 21, and the screen frame 2 is also equipped with a crossbeam steel plate 22 for installing and positioning the fixing bolt assembly 3. The crossbeam steel plate 22 has a through groove, which is cross-shaped.

[0026] The polyurethane pressure strip 4 is connected and fixed to the left polyurethane screen plate 5 and the right polyurethane screen plate 1 through the limiting relationship established between the fixing bolt assembly 3, the crossbeam steel plate 22, and the screen frame 2. The top of the main body of the fixing bolt assembly 3 is a polyurethane protective cap to prevent the material from looking down on it. The main body of the fixing bolt assembly 3 is also provided with a sliding section 31, a limiting section 32, and an extension section 33 along the vertical direction. The sliding section 31 and the limiting section 32 are arranged in a U-shape, and the width of the limiting section 32 is adapted to the size of the through groove on the crossbeam steel plate 22.

[0027] The working principle of this utility model is as follows: The connection and fixing point of this utility model is on the polyurethane pressure strip 4. By disassembling and assembling the fixing bolt assembly 3, the installation state of the left polyurethane screen plate 5 and the right polyurethane screen plate 1 can be adjusted. Specifically, during installation, the left polyurethane screen plate 5 and the right polyurethane screen plate 1 are installed side by side, so that the corresponding edge of the two is located at the top of the screen frame 2. Then, the polyurethane pressure strip 4 is installed in the side groove of the opposite side of the left polyurethane screen plate 5 and the right polyurethane screen plate 1. Then, the fixing bolt assembly 3 is installed in the screw hole on the polyurethane pressure strip 4. The T-shaped structure formed by the main body of the fixing bolt assembly 3, the sliding section 31, and the limiting section 32 cooperates with the through groove of the crossbeam steel plate 22 on the screen frame 2. First, the extension section 33 and the limiting section 32 are inserted through the middle of the through groove. The extension section 33 enters the irregular groove 21. Then, the fixing bolt assembly 3 moves along the long side of the through groove, so that the sliding section 31 slides to the narrow position of the through groove. At this time, under the limiting action of the limiting section 32, the fixing bolt assembly 3 cannot move up and down, and the installation can be completed, reducing the difficulty of installation and positioning.

[0028] This utility model has a simple fixing method, is easy to operate, and is highly practical.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 6 and Figure 7 The fixing structure of the polyurethane screen plate of the feeding screen also includes: a rotating base 201, limiting teeth 202, and a limiting mechanism 6. The guide plate 200 is rotatably mounted on the front side of the main body 100 via the rotating base 201. There are several limiting teeth 202, which are equidistantly mounted on the rotating base 201 along the circumference. The limiting mechanism 6 is mounted at the bottom end of the main body 100, and the limiting mechanism 6 is controlled to cooperate with the limiting teeth 202 to limit the rotation base 201.

[0031] The limiting mechanism 6 includes: a mounting base 61, a sliding groove 62, a spring 63, a telescopic rod 64, a push rod 65, and a push rod 66. The mounting base 61 is connected to the lower surface of the main body 100 and is a hollow structure with an opening at the front. The sliding groove 62 is formed in the side wall of the mounting base 61. The spring 63 is installed inside the mounting base 61, and one end is fixedly connected to the inner wall of the mounting base 61. The telescopic rod 64 is slidably installed inside the mounting base 61, with one end connected to the other end of the spring 63, and the other end of the telescopic rod 64 extending out of the front side of the mounting base 61. The push rod 65 is installed at the end of the telescopic rod 64 that extends out of the mounting base 61 and engages with the limiting tooth 202. The push rod 66 is installed on the side wall of the telescopic rod 64 and extends out of the sliding groove 62. In use, pulling the push rod 66 retracts the telescopic rod 64 into the mounting base 61 and compresses the spring 63. At this time, the push rod 65 disengages from the limiting tooth 202. Then, the guide plate 200 is rotated, and the external force is removed. The elastic force of the spring 63 causes the telescopic rod 64 to extend. At this time, the push rod 65 engages with the side wall of another limiting tooth 202, preventing the rotating seat 201 from rotating and thus positioning the guide plate 200. This structure allows for adjustment of the discharge angle of the guide plate 200.

[0032] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fixing structure for a polyurethane screen plate of a feeding screen, characterized in that, Includes: main body (100), guide plate (200), right polyurethane screen plate (1), screen frame (2), fixing bolt assembly (3), polyurethane pressure strip (4) and left polyurethane screen plate (5); A guide plate (200) is installed at an incline on the front side of the main body (100); a screen frame (2) is installed in the middle of the inner side of the main body (100) along the front-back direction; the left polyurethane screen plate (5) and the right polyurethane screen plate (1) are installed inside the main body (100) and are located at the top of the screen frame (2); the left polyurethane screen plate (5) and the right polyurethane screen plate (1) are provided with side grooves on opposite sides; polyurethane pressure strips (4) are installed in the side grooves on the corresponding sides of the left polyurethane screen plate (5) and the right polyurethane screen plate (1); the polyurethane pressure strips (4) and the screen frame (2) are connected by a fixing bolt assembly (3).

2. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 1, characterized in that, The thickness of the polyurethane pressure strip (4) is adapted to the thickness of the side grooves opened on the left polyurethane screen plate (5) and the right polyurethane screen plate (1).

3. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 2, characterized in that, The polyurethane pressure strip (4) is provided with screw holes that are adapted to the size of the fixing bolt assembly (3).

4. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 3, characterized in that, The left polyurethane sieve plate (5), the right polyurethane sieve plate (1), and the polyurethane pressure strip (4) are made of polyurethane material.

5. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 4, characterized in that, The sieve frame (2) is provided with a shaped groove (21), and a crossbeam steel plate (22) is also installed on the sieve frame (2). The crossbeam steel plate (22) is provided with a cross-shaped through groove.

6. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 5, characterized in that, The main body of the fixing bolt assembly (3) is provided with a sliding section (31), a limiting section (32) and an extension section (33) along the vertical direction; the sliding section (31) and the limiting section (32) are arranged in a U-shape, and the width of the limiting section (32) is adapted to the through groove size on the crossbeam steel plate (22).

7. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 6, characterized in that, Also includes: The rotating seat (201), the limiting teeth (202), and the limiting mechanism (6) are provided. The guide plate (200) is rotatably mounted on the front side of the main body (100) via the rotating seat (201). There are several limiting teeth (202), which are equidistantly mounted on the rotating seat (201) along the circumference. The limiting mechanism (6) is mounted on the bottom end of the main body (100). The limiting mechanism (6) is controlled to cooperate with the limiting teeth (202) and can limit the rotating seat (201).

8. The fixing structure of the polyurethane screen plate for a feed sieve according to claim 7, characterized in that, The limiting mechanism (6) includes: a mounting base (61), a slide (62), a spring (63), a telescopic rod (64), a top rod (65), and a push rod (66). The mounting base (61) is connected to the lower surface of the main body (100); the sliding groove (62) is formed on the side wall of the mounting base (61); the spring (63) is installed in the mounting base (61) and one end is fixedly connected to the inner wall of the mounting base (61); the telescopic rod (64) is slidably installed in the mounting base (61), one end is connected to the other end of the spring (63), and the other end of the telescopic rod (64) extends out of the front side of the mounting base (61); the push rod (65) is installed at the end of the telescopic rod (64) that extends out of the mounting base (61) and engages with the limiting tooth (202); the push rod (66) is installed on the side wall of the telescopic rod (64) and extends out of the sliding groove (62).

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