Self-lubricating wear-resistant ceramic screen roller

Abstract

The utility model discloses a self-lubricating wear-resistant ceramic screen roller, which relates to the technical field of ceramic screen rollers, and comprises a roller body and positioning blocks, the outer side of the roller body is fixedly connected with self-lubricating ceramics, the two ends of the roller body are respectively provided with a shaft head, one end of each shaft head is fixedly welded with one positioning block, and the inside of each positioning block is fixedly connected with a spring. According to the self-lubricating wear-resistant ceramic screen roller, shaft heads are inserted into the roller body, when clamping blocks in positioning blocks on one sides of the shaft heads make contact with connecting blocks on the inner side of the roller body, the clamping blocks can move and extrude springs on one sides so that the springs can contract, and when the clamping blocks make contact with clamping grooves in the connecting blocks, the springs can reset; the clamping blocks are pushed to be clamped with the clamping grooves, after the clamping blocks enter the clamping grooves, the grooves in one side can be clamped with the protruding heads, the connecting stability of the roller body and the shaft heads is improved, and at the moment, the connecting positions of the roller body and the shaft heads can be welded through the welding chamfers.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic sieve rollers, in particular to a self-lubricating and wear-resistant ceramic sieve roller. Background Technique

[0002] In the metallurgical sintering and steel plant pellet production processes, various roller screeners and feeding devices are commonly used screening and feeding equipment, which are often arranged in front of sintering machines, belt roasting machines or grate-kiln machines to screen and feed materials. At present, the more commonly used screening and feeding devices mainly include feeding plates, roller feeders and roller-plate combined feeders, and these devices all require sieve rollers as key material conveying and transmission components.

[0003] For example, in a self-lubricating and wear-resistant ceramic sieve roller with the application number CN202222129272.4, by setting a self-lubricating and wear-resistant ceramic sleeve with high surface hardness on the outer surface of the roller body, the wear resistance is increased by more than 3 times compared with the traditional stainless steel roller body, and the self-lubricating and wear-resistant ceramic material on the surface of the roller body belongs to a non-metallic material, and the surface is smooth and not easy to stick materials; in addition, by setting a welding chamfer at the tail of the shaft head, the welding strength between the shaft head and the roller body can be improved, and at the same time, stress relief treatment is performed to ensure that the shaft head and the roller body do not fall off or separate during long-term high-speed rotation, and the socket chamfer is convenient for inserting and matching with the roller body.

[0004] When the above patent connects and fixes the shaft head and the roller body, it is necessary to insert the shaft head into the roller body and then fix the two by welding. However, the shaft head is not limited after being inserted into the roller body, and the shaft head will rotate and move during welding, affecting the welding work. Content of the Utility Model

[0005] The purpose of the utility model is to provide a self-lubricating and wear-resistant ceramic sieve roller to solve the problem that the existing self-lubricating and wear-resistant ceramic sieve roller is not convenient to fix with the shaft head proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a self-lubricating and wear-resistant ceramic sieve roller, including: a roller body and a positioning block, a self-lubricating ceramic is fixedly connected to the outside of the roller body, and shaft heads are arranged at both ends of the roller body,

[0007] A positioning block is fixedly welded to one end of the shaft head, a spring is fixedly connected inside the positioning block, a clamping block is fixedly connected to one end of the spring, a groove matching the convex head is opened on one side of the clamping block, and the convex head is clamped and connected with the groove. A connecting block is fixedly connected to one side of the convex head, and the outside of the connecting block is fixedly connected to the inner side of the roller body.

[0008] Preferably, a clamping groove matching the clamping block is opened inside the connecting block, and welding chamfers are opened at both ends of the roller body.

[0009] Preferably, a positioning groove matching the positioning block is formed inside the connecting block, and the positioning block is slidably connected to the positioning groove.

[0010] Preferably, a sliding groove matching the clamping block is formed inside the positioning block, and the clamping block is slidably connected to the sliding groove. The outer shape of the clamping block is trapezoidal.

[0011] Preferably, a high-temperature resistant layer is sprayed on one side of the self-lubricating ceramic, and an antioxidant layer is sprayed on one side of the high-temperature resistant layer.

[0012] Preferably, a wear-resistant layer is connected to one side of the antioxidant layer.

[0013] Compared with the prior art, the beneficial effects of the self-lubricating and wear-resistant ceramic sieve roller are as follows: Insert the shaft head into the inside of the roller body. When the clamping block in the positioning block on one side of the shaft head contacts the connecting block inside the roller body, the clamping block will move and squeeze the spring on one side, causing it to contract. When the clamping block contacts the clamping groove inside the connecting block, the spring will reset and push the clamping block to engage with the clamping groove. After the clamping block enters the clamping groove, the groove on one side will engage with the convex head. At this time, the connection between the roller body and the shaft head can be welded through the welding chamfer. By providing a high-temperature resistant layer on the outside of the self-lubricating ceramic, the ceramic sieve roller can be protected when transporting high-temperature materials. The antioxidant layer is composed of a cermet coating, which can significantly improve the heat resistance and antioxidant property of the ceramic roller, slow down the oxidation rate of the ceramic sieve roller, and extend the service life of the ceramic sieve roller. The wear-resistant layer can improve the anti-adhesion, oil resistance, wear resistance, flexibility, insulation and weather resistance of the ceramic roller, making it suitable for various harsh working environments.

[0014] 1. In the metallurgical sintering and steel plant pellet production processes, it is necessary to screen and transport materials through a ceramic sieve roller. When fixing the shaft heads at both ends of the ceramic sieve roller, insert the shaft heads into the inside of the roller body. When the clamping block in the positioning block on one side of the shaft head contacts the connecting block inside the roller body, the clamping block will move and squeeze the spring on one side, causing it to contract. When the clamping block contacts the clamping groove inside the connecting block, the spring will reset and push the clamping block to engage with the clamping groove. After the clamping block enters the clamping groove, the groove on one side will engage with the convex head, improving the connection stability between the roller body and the shaft head. At this time, the connection between the roller body and the shaft head can be welded through the welding chamfer. Thus, through the above operations, it is convenient to position the shaft head in the roller body and facilitate the welding of the roller body and the shaft head.

[0015] 2. In the metallurgical sintering and steel plant pellet production processes, it is necessary to screen and convey materials through ceramic sieve rolls. To improve the service performance of the ceramic sieve rolls, a high-temperature resistant layer is provided on the outer side of the self-lubricating ceramic to protect the ceramic sieve rolls when conveying high-temperature materials. The antioxidant layer is composed of a cermet coating, which can significantly improve the heat resistance and antioxidant property of the ceramic roll, slow down the oxidation rate of the ceramic sieve roll, and extend the service life of the ceramic sieve roll. The wear-resistant layer can improve the anti-adhesion, oil resistance, wear resistance, flexibility, insulation and weather resistance of the ceramic roll, etc., making it suitable for various harsh working environments. Thus, through the above operations, it is convenient to improve the service performance of the ceramic sieve roll and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 is a front sectional schematic diagram of the present invention;

[0018] Figure 3 is an enlarged schematic diagram A of the present invention;

[0019] Figure 4 is a right view schematic diagram of the positioning block of the present invention;

[0020] Figure 5 is a schematic diagram of the wear-resistant layer of the present invention.

[0021] In the figure: 1, roll body; 2, self-lubricating ceramic; 3, shaft head; 4, positioning block; 5, spring; 6, clamping block; 7, convex head; 8, connecting block; 9, welding chamfer; 10, high-temperature resistant layer; 11, antioxidant layer; 12, wear-resistant layer; 13, card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 4 , the present invention provides a technical solution: a self-lubricating wear-resistant ceramic sieve roll, including: a roll body 1 and a positioning block 4. The outer side of the roll body 1 is fixedly connected with a self-lubricating ceramic 2, and shaft heads 3 are arranged at both ends of the roll body 1.

[0024] One end of the shaft head 3 is fixedly welded with a positioning block 4. A spring 5 is fixedly connected inside the positioning block 4. One end of the spring 5 is fixedly connected with a clamping block 6. A groove matching the convex head 7 is formed on one side of the clamping block 6, and the convex head 7 is in clamping connection with the groove. One side of the convex head 7 is fixedly connected with a connecting block 8, and the outer side of the connecting block 8 is fixedly connected with the inner side of the roller body 1; a clamping groove 13 matching the clamping block 6 is formed inside the connecting block 8; welding chamfers 9 are formed at both ends of the roller body 1; a positioning groove matching the positioning block 4 is formed inside the connecting block 8, and the positioning block 4 is in sliding connection with the positioning groove; a sliding groove matching the clamping block 6 is formed inside the positioning block 4, and the clamping block 6 is in sliding connection with the sliding groove. The outer shape of the clamping block 6 is trapezoidal. The material of the convex head 7 is rubber. The clamping block 6 and the convex head 7 form a clamping structure. The positioning block 4, the spring 5 and the clamping block 6 form an elastic telescopic structure. The material of the self-lubricating ceramic 2 is alumina ceramic.

[0025] During specific implementation, in the metallurgical sintering and steel plant pellet production processes, it is necessary to screen and convey materials through a ceramic sieve roller. When fixing the shaft heads 3 at both ends of the ceramic sieve roller, by inserting the shaft heads 3 into the inside of the roller body 1, when the clamping block 6 in the positioning block 4 on one side of the shaft head 3 contacts the connecting block 8 on the inner side of the roller body 1, the clamping block 6 will move and squeeze the spring 5 on one side, causing it to contract. When the clamping block 6 contacts the clamping groove 13 inside the connecting block 8, the spring 5 will reset and push the clamping block 6 to engage with the clamping groove 13. After the clamping block 6 enters the clamping groove 13, the groove on one side will engage with the convex head 7, improving the connection stability between the roller body 1 and the shaft head 3. At this time, the connection between the roller body 1 and the shaft head 3 can be welded through the welding chamfer 9;

[0026] When it is necessary to separate the roller body 1 and the shaft head 3 before welding, by pulling the shaft head 3 to move, the positioning block 4 will also move when the shaft head 3 moves. The inclined surface on one side of the positioning block 4 will move after contacting the connecting block 8 and simultaneously squeeze the convex head 7, causing the rubber material convex head 7 to deform. When the clamping block 6 completely contracts into the inside of the positioning block 4, the roller body 1 and the shaft head 3 can be separated. In this way, through the above operations, the shaft head 3 can be positioned in the roller body 1, facilitating the welding of the roller body 1 and the shaft head 3.

[0027] Please refer to Figure 1 and Figure 5 , a high-temperature resistant layer 10 is sprayed on one side of the self-lubricating ceramic 2, and an antioxidant layer 11 is sprayed on one side of the high-temperature resistant layer 10; a wear-resistant layer 12 is connected to one side of the antioxidant layer 11. The material of the high-temperature resistant layer 10 is a nano-composite coating, the material of the antioxidant layer 11 is a cermet coating, and the material of the wear-resistant layer 12 is a polyurethane coating.

[0028] In specific implementation, in the metallurgical sintering and steel plant pellet production processes, it is necessary to screen and convey materials through ceramic sieve rolls. In order to improve the service performance of the ceramic sieve rolls, a high-temperature resistant layer 10 is provided on the outer side of the self-lubricating ceramic 2. The high-temperature resistant layer 10 is composed of a nano-composite coating. The nano-composite coating composed of nano-oxides and nano-nitrides has excellent high-temperature resistance and can protect the ceramic sieve rolls when conveying high-temperature materials. The antioxidant layer 11 is composed of a cermet coating, which can significantly improve the heat resistance and antioxidant properties of the ceramic roll. After being used in combination with the high-temperature resistant layer 10, it can slow down the oxidation rate of the ceramic sieve rolls and extend the service life of the ceramic sieve rolls. The wear-resistant layer 12 is composed of a polyurethane coating, which can improve the anti-sticking, oil resistance, wear resistance, flexibility, insulation and weather resistance of the ceramic roll, making it suitable for various harsh working environments. Thus, through the above operations, it is convenient to improve the service performance of the ceramic sieve rolls and extend the service life of the ceramic sieve rolls.

[0029] In summary: When using the self-lubricating wear-resistant ceramic sieve roll, first, multiple groups of roll bodies 1 will screen the materials during rotation. The materials with a composite screening volume will fall through the gaps, and the remaining materials will be conveyed by the roll bodies 1. The surface of the self-lubricating ceramic 2 on the outer side of the roll bodies 1 is smooth and not easy to stick to materials, making the ceramic sieve roll have a self-lubricating effect. This is the characteristic of the self-lubricating wear-resistant ceramic sieve roll. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-lubricating and wear-resistant ceramic sieve roll, comprising: A roller body (1) and a positioning block (4), wherein a self-lubricating ceramic (2) is fixedly connected to the outer side of the roller body (1), and shaft heads (3) are arranged at both ends of the roller body (1), and it is characterized in that: One end of the shaft head (3) is fixedly welded with the positioning block (4), a spring (5) is fixedly connected inside the positioning block (4), one end of the spring (5) is fixedly connected with a clamping block (6), a groove matching with a convex head (7) is formed on one side of the clamping block (6), and the convex head (7) is in clamping connection with the groove. A connecting block (8) is fixedly connected to one side of the convex head (7), and the outer side of the connecting block (8) is fixedly connected to the inner side of the roller body (1).

2. The self-lubricating and wear-resistant ceramic sieve roll according to claim 1, characterized in that: A clamping groove (13) matching with the clamping block (6) is formed inside the connecting block (8), and welding chamfers (9) are formed at both ends of the roller body (1).

3. The self-lubricating and wear-resistant ceramic sieve roll according to claim 2, characterized in that: A positioning groove matching with the positioning block (4) is formed inside the connecting block (8), and the positioning block (4) is in sliding connection with the positioning groove.

4. The self-lubricating wear-resistant ceramic sieve roll according to claim 3, characterized in that: A sliding groove matching with the clamping block (6) is formed inside the positioning block (4), and the clamping block (6) is in sliding connection with the sliding groove. The outer shape of the clamping block (6) is trapezoidal. The convex head (7) is made of rubber. The clamping block (6) and the convex head (7) form a clamping structure. The positioning block (4), the spring (5) and the clamping block (6) form an elastic telescopic structure. The self-lubricating ceramic (2) is made of alumina ceramic.

5. A self-lubricating and wear-resistant ceramic sieve roller according to claim 1, characterized in that: A high-temperature resistant layer (10) is sprayed on one side of the self-lubricating ceramic (2), and an antioxidant layer (11) is sprayed on one side of the high-temperature resistant layer (10).

6. The self-lubricating and wear-resistant ceramic sieve roll according to claim 5, characterized in that: A wear-resistant layer (12) is connected to one side of the antioxidant layer (11). The high-temperature resistant layer (10) is made of a nano composite coating. The antioxidant layer (11) is made of a cermet coating. The wear-resistant layer (12) is made of a polyurethane coating.

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