A high performance roll

Abstract

The utility model relates to the field of roll, concretely provides a high -performance roll including protection subassembly and limit component, the limit component installs on protection subassembly, protection subassembly includes roll body, and the lateral surface of roll body is fixed with the edge piece, the lateral surface of roll body is equipped with the ring, and the surface of ring is fixed with the annular block, the surface of roll body is equipped with multiple trapezoidal grooves, and the inside of trapezoidal groove is equipped with trapezoidal block. The utility model adopts multiple trapezoidal blocks, connecting plate and guard board to build polygonal composite structure, and its edge effect can directly disperse the concentrated stress on the surface of roll body, reduces the probability of fatigue crack initiation from the root, through the combination of linear sliding trapezoidal block, connecting plate and guard board, the quick axial separation of the protection unit and roll body can be realized, after the local wear, only the damaged panel needs to be replaced, avoid the whole machine scrap of traditional integrated structure, greatly reduce the operation and maintenance cost, and the surface of guard board integrates self -repairing coating.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill rolls, and more particularly to a high-performance rolling mill roll. Background Technology

[0002] Currently, rolling mill rolls, as core equipment in metal rolling processing, are widely used in the steel, non-ferrous metals, and new materials forming industries. Their basic function is to shape and surface-finish materials such as plates and pipes through the extrusion action of the roll surface. Existing rolling mill rolls are mostly manufactured using integral casting or forging processes. The main structure consists of the roll body (working section), roll neck (support section), and drive end, and is fixed to the frame by bearing seats. While these rolls can meet basic production needs, they reveal many performance bottlenecks under extreme operating conditions, necessitating structural innovation to improve overall efficiency.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: Existing rolls generally adopt an integral structure, and their surface protective layer needs to be completely disassembled and replaced after local wear, resulting in long equipment downtime and high maintenance costs. Furthermore, they lack a structural design to actively inhibit the initiation of fatigue cracks, making it difficult to meet the reliability requirements under high-intensity continuous operation scenarios. Utility Model Content

[0004] In order to improve the existing technology of rolls which generally adopt an integral structure, the surface protective layer needs to be completely disassembled and replaced after local wear, resulting in long equipment downtime, high maintenance costs, and lack of structural design to actively inhibit the initiation of fatigue cracks, it is difficult to meet the reliability requirements of high-intensity continuous operation scenarios. This application provides a high-performance roll.

[0005] This application provides a high-performance rolling mill roll with the following technical solution: A high-performance rolling mill roll includes a protective component and a limiting component. The limiting component is installed on the protective component. The protective component includes a roll body, and a prism is fixed on the side surface of the roll body. A ring is sleeved on the side surface of the roll body, and an annular block is fixed on the surface of the ring. Multiple sets of trapezoidal grooves are formed on the surface of the roll body, and trapezoidal blocks are provided inside the trapezoidal grooves. A connecting plate is fixed on the surface of the trapezoidal blocks, and a protective plate is fixed on the surface of the connecting plate. A self-healing coating is provided on the surface of the protective plate. The self-healing coating includes a thermally sprayed ceramic underlayer, and an epoxy-based coating toplayer is provided on the surface of the thermally sprayed ceramic underlayer.

[0006] By adopting the above technical solution, a movable protective unit is formed by setting multiple sets of trapezoidal blocks, connecting plates, and protective plates. The angular effect of the polygonal structure is used to effectively disperse concentrated stress, significantly reducing the risk of fatigue cracks. When maintenance is required, the trapezoidal blocks, connecting plates, and protective plates slide along the preset track, allowing them to move axially away from the roller body and complete the independent disassembly operation. For locally worn parts, only the corresponding panel needs to be replaced without the entire part being scrapped. It supports flexible replacement of panels of different materials according to working conditions. The protective plate has an integrated self-healing coating. When it encounters a surface scratch of ≤0.1mm, it triggers the microcapsule rupture mechanism to release the repair agent. After 72 hours of self-repair, the surface smoothness can be restored to Ra≤0.8μm.

[0007] In a further configuration, the limiting component includes a threaded ring fixed to the surface of the annulus, and a threaded sleeve is threadedly connected to the surface of the threaded ring. Both the surface of the threaded sleeve and the surface of the threaded ring are provided with sliding grooves. The inside of the threaded sleeve is provided with a protrusion, and a sliding post is fixed to the surface of the protrusion. A guide sleeve is installed inside the protrusion, and a spring is sleeved on the surface of the guide sleeve.

[0008] By adopting the above technical solution, a limiting component is configured for quick disassembly and assembly. During operation, the axial sliding column drives the convex column to move synchronously, causing the convex column to disengage radially from the roller body. This then pushes the ring to slide axially, causing the threaded sleeve to detach from the roller body. By rotating the threaded sleeve, the spiral separation from the threaded ring is achieved, realizing efficient maintenance and convenient replacement.

[0009] Furthermore, the surface of the sliding column contacts the inner wall of the sliding groove, and the sliding column and the protruding column are connected by threads.

[0010] By adopting the above technical solution, the guiding function is achieved by the precise cooperation between the sliding column and the sliding groove, ensuring that the convex column moves stably along the predetermined trajectory. The threaded connection method strengthens the structural rigidity between the sliding column and the convex column, effectively transmits driving force and reduces transmission clearance, thereby improving motion accuracy and reliability.

[0011] Furthermore, the epoxy coating surface layer is made of epoxy coating containing microcapsules, the capsules having a diameter of 50 μm and containing epoxy resin.

[0012] By adopting the above technical solution, when a scratch of ≤0.1mm occurs on the surface of the protective plate, the built-in 50μm microcapsules rupture under stress and release epoxy resin. The material automatically fills the recessed area and completes curing within 72 hours, so that the surface roughness after repair reaches Ra≤0.8μm, realizing precise self-repair of the damaged parts and extending the service life of the components.

[0013] Furthermore, each corner of the protective plate is provided with a rounded transition portion, and the surfaces of the multiple sets of protective plates are bonded together.

[0014] By adopting the above technical solution, the stress distribution of the arc transition section is optimized, eliminating the stress concentration phenomenon caused by traditional right-angle edges.

[0015] Furthermore, the protective plate, the trapezoidal block, and the connecting plate are integrated into a single structure, and the surface of the trapezoidal block contacts the inner wall of the trapezoidal groove.

[0016] By adopting the above technical solutions, the integrated molding process ensures that the form and position tolerances of the protective plate, trapezoidal block and connecting plate are controlled within the allowable range. The interference fit between the trapezoidal block and the trapezoidal groove not only ensures positioning accuracy but also enhances shear resistance, so that the modular components can maintain structural stability when subjected to dynamic loads.

[0017] Furthermore, the protective plate, trapezoidal block, and connecting plate are each provided with twelve sets, and the protective plate, trapezoidal block, and connecting plate are arranged symmetrically to each other.

[0018] By adopting the above technical solution, twelve symmetrically distributed protection units form a circumferentially uniform load-bearing system. Each component is subjected to balanced force to avoid unilateral overload. The symmetrical layout simplifies the assembly process and improves replacement efficiency, thereby shortening downtime during equipment maintenance and ensuring the continuous operation of the production line.

[0019] Compared with related technologies, the high-performance roll provided by this utility model has the following beneficial effects:

[0020] This invention provides a high-performance roll, which uses multiple sets of trapezoidal blocks, connecting plates, and protective plates to construct a polygonal composite structure. Its angular effect can directly disperse the concentrated stress on the roll surface, reducing the probability of fatigue crack initiation from the root. Through the combination of linear sliding trapezoidal blocks, connecting plates, and protective plates, the protective unit can be quickly separated axially from the roll body. After local wear, only the damaged panel needs to be replaced, avoiding the scrapping of the entire machine in the traditional integrated structure, and significantly reducing maintenance costs. The protective plate surface integrates a self-healing coating. When a surface scratch of ≤0.1mm is detected, the built-in microcapsules immediately rupture and release the repair agent. After 72 hours of self-repair, the surface roughness can be stabilized to Ra≤0.8μm, effectively maintaining the roll surface accuracy and extending the service life.

[0021] This utility model provides a high-performance roll. Through a sliding column drive mechanism, the convex column can be driven to radially detach from the roll body by axially translating the sliding column, forming an initial separation gap. On this basis, the sliding ring can detach the threaded sleeve from the roll body as a whole, providing operating space for the replacement of trapezoidal blocks, connecting plates and protective plates. By rotating the threaded sleeve, the screw pair relationship between it and the threaded ring can be used to achieve complete disassembly. Attached Figure Description

[0022] Figure 1A schematic diagram of a preferred embodiment of a high-performance rolling mill provided by this utility model;

[0023] Figure 2 This is the front view of the present utility model;

[0024] Figure 3 This is a top view of the present invention;

[0025] Figure 4 This is a side sectional view of the present invention;

[0026] Figure 5 for Figure 2 Enlarged view of point A in the image.

[0027] The following are the labeling elements in the diagram: 1. Protective component; 101. Roller body; 102. Rib block; 103. Ring; 104. Annular block; 105. Trapezoidal groove; 106. Trapezoidal block; 107. Connecting plate; 108. Protective plate; 109. Self-healing coating; 110. Thermally sprayed ceramic underlayer; 111. Epoxy coating toplayer; 2. Limiting component; 201. Threaded ring; 202. Threaded sleeve; 203. Slide groove; 204. Protruding post; 205. Slide post; 206. Guide sleeve; 207. Spring. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate typical embodiments of this utility model.

[0029] Example 1:

[0030] like Figure 1-5 As shown, a high-performance rolling mill roll of this utility model includes a protective component 1 and a limiting component 2. The limiting component 2 is installed on the protective component 1. The protective component 1 includes a roll body 101, and a prism block 102 is fixed on the side surface of the roll body 101. A ring 103 is sleeved on the side surface of the roll body 101, and an annular block 104 is fixed on the surface of the ring 103. Multiple sets of trapezoidal grooves 105 are opened on the surface of the roll body 101, and trapezoidal blocks 106 are provided inside the trapezoidal grooves 105. A connecting plate 107 is fixed on the surface of the trapezoidal block 106, and a protective plate 108 is fixed on the surface of the connecting plate 107. A self-healing coating 109 is provided on the surface of the protective plate 108. The self-healing coating 109 includes a thermally sprayed ceramic underlayer 110, and an epoxy-based coating top layer 111 is provided on the surface of the thermally sprayed ceramic underlayer 110.

[0031] like Figure 1-5As shown, a movable protective unit is formed by setting multiple sets of trapezoidal blocks 106, connecting plates 107 and protective plates 108. The angular effect of the polygonal structure is used to effectively disperse concentrated stress, which significantly reduces the risk of fatigue cracks. When maintenance is required, the trapezoidal blocks 106, connecting plates 107 and protective plates 108 slide along the preset track to make them move axially and separate from the roller body 101, completing the independent disassembly operation. For locally worn parts, only the corresponding panel needs to be replaced without the whole part being scrapped. It supports flexible replacement of panels of different materials according to working conditions. The protective plate 108 has a self-healing coating 109 integrated on its surface. When it encounters a surface scratch of ≤0.1mm, it triggers the microcapsule rupture mechanism to release the repair agent. After 72 hours of self-repair, the surface smoothness can be restored to Ra≤0.8μm.

[0032] like Figure 1-5 As shown, the epoxy coating top layer 111 is made of epoxy coating containing microcapsules, with the capsules having a diameter of 50 μm and containing epoxy resin.

[0033] like Figure 1-5 As shown, each corner of the protective plate 108 is provided with a rounded transition part, and the surfaces of multiple sets of protective plates 108 are bonded together.

[0034] like Figure 1-5 As shown, the protective plate 108, trapezoidal block 106, and connecting plate 107 are integrated into one structure, and the surface of trapezoidal block 106 is in contact with the inner wall of trapezoidal groove 105.

[0035] like Figure 1-5 As shown, the protective plate 108, the trapezoidal block 106, and the connecting plate 107 are all provided with twelve sets, and the protective plate 108, the trapezoidal block 106, and the connecting plate 107 are arranged symmetrically to each other.

[0036] In implementation, a design employing multiple sets of trapezoidal blocks 106, connecting plates 107, and protective plates 108 is adopted. The angular effect of the polygonal structure can disperse concentrated stress and reduce the risk of fatigue cracks. Simultaneously, by sliding the trapezoidal blocks 106, connecting plates 107, and protective plates 108, they can be separated from the roller body 101. After local wear, only the damaged panel needs to be replaced, without the need for complete scrapping. Panels of different materials can be replaced according to working conditions. The surface of the protective plate 108 is provided with a self-healing coating 109. When a scratch of ≤0.1mm appears on the surface, the microcapsules rupture and release the repair agent, restoring the smoothness Ra≤0.8μm within 72 hours.

[0037] Example 2:

[0038] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: the limiting component 2 includes a threaded ring 201 fixed to the surface of the ring 103, and a threaded sleeve 202 is threadedly connected to the surface of the threaded ring 201. The surfaces of the threaded sleeve 202 and the threaded ring 201 are both provided with sliding grooves 203. The inside of the threaded sleeve 202 is provided with a protrusion 204, and a sliding post 205 is fixed to the surface of the protrusion 204. A guide sleeve 206 is installed inside the protrusion 204, and a spring 207 is sleeved on the surface of the guide sleeve 206.

[0039] like Figure 1-5 As shown, the limiting component 2 is configured for quick disassembly and assembly. During operation, the axial sliding column 205 drives the convex column 204 to move synchronously, causing the convex column 204 to radially disengage from the roller body 101. Then, it pushes the ring 103 to slide axially, and the threaded sleeve 202 is also disengaged from the roller body 101. By rotating the threaded sleeve 202, the spiral separation from the threaded ring 201 is achieved, realizing efficient maintenance and convenient replacement.

[0040] like Figure 1-5 As shown, the surface of the sliding column 205 is in contact with the inner wall of the sliding groove 203, and the sliding column 205 and the protruding column 204 are connected by threads.

[0041] During implementation, when it is necessary to disassemble the limiting component 2, the sliding column 205 can drive the protruding column 204 to slide, thereby separating the protruding column 204 from the roller body 101. At the same time, the sliding ring 103 can separate the ring 103 and the threaded sleeve 202 from the roller body 101, making it convenient to replace the trapezoidal block 106, the connecting plate 107 and the protective plate 108. Meanwhile, by turning the threaded sleeve 202, it is easy to separate the threaded sleeve 202 from the threaded ring 201.

[0042] In this embodiment: (The model of the electrical appliance mentioned in the text is added separately).

[0043] The advantages of this technical solution in practical applications include, but are not limited to, the following:

[0044] 1. It adopts a polygonal composite structure (trapezoidal block 106 + connecting plate 107 + protective plate 108) to disperse stress. The sliding design supports single-part replacement. The self-healing coating 109 automatically eliminates scratches ≤0.1mm and restores Ra≤0.8μm in 72 hours.

[0045] 2. The sliding column 205 drives the convex column 204 to separate radially, and the linkage ring 103 and threaded sleeve 202 are axially disengaged. Combined with the screw pair, it realizes staged disassembly and ensures convenient maintenance.

[0046] This technical solution employs a design with multiple sets of trapezoidal blocks 106, connecting plates 107, and protective plates 108. The angular effect of the polygonal structure can disperse concentrated stress and reduce the risk of fatigue cracks. Simultaneously, by sliding the trapezoidal blocks 106, connecting plates 107, and protective plates 108, the trapezoidal blocks 106, connecting plates 107, and protective plates 108 can be separated from the roller body 101. After local wear, only the damaged panel needs to be replaced, without the need for complete scrapping. Panels of different materials can be replaced according to working conditions. The surface of the protective plate 108 is provided with a self-healing coating 109. When a scratch of ≤0.1mm appears on the surface, the microcapsules rupture and release the repair agent, restoring the smoothness Ra≤0.8μm within 72 hours.

[0047] When it is necessary to disassemble the limiting component 2, the sliding column 205 can drive the protruding column 204 to slide, thereby separating the protruding column 204 from the roller body 101. At the same time, the sliding ring 103 can separate the ring 103 and the threaded sleeve 202 from the roller body 101, making it convenient to replace the trapezoidal block 106, the connecting plate 107 and the protective plate 108. Meanwhile, by turning the threaded sleeve 202, it is easy to separate the threaded sleeve 202 from the threaded ring 201.

[0048] The above are merely exemplary embodiments of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure.

Claims

1. A high-performance rolling roll, characterized in that: The system includes a protective component (1) and a limiting component (2). The limiting component (2) is mounted on the protective component (1). The protective component (1) includes a roller body (101), and a prism block (102) is fixed on the side surface of the roller body (101). A ring (103) is sleeved on the side surface of the roller body (101), and an annular block (104) is fixed on the surface of the ring (103). Multiple sets of trapezoidal grooves (105) are formed on the surface of the roller body (101). The trapezoidal groove (105) has a trapezoidal block (106) inside. A connecting plate (107) is fixed to the surface of the trapezoidal block (106), and a protective plate (108) is fixed to the surface of the connecting plate (107). A self-healing coating (109) is provided on the surface of the protective plate (108). The self-healing coating (109) includes a thermally sprayed ceramic substrate (110), and an epoxy coating top layer (111) is provided on the surface of the thermally sprayed ceramic substrate (110).

2. The high-performance roll according to claim 1, characterized in that, The limiting component (2) includes a threaded ring (201) fixed to the surface of the ring (103), and a threaded sleeve (202) is threadedly connected to the surface of the threaded ring (201). The surfaces of the threaded sleeve (202) and the threaded ring (201) are both provided with a sliding groove (203). The inside of the threaded sleeve (202) is provided with a protrusion (204), and a sliding post (205) is fixed to the surface of the protrusion (204). A guide sleeve (206) is installed inside the protrusion (204), and a spring (207) is sleeved on the surface of the guide sleeve (206).

3. A high-performance roll according to claim 2, characterized in that, The surface of the sliding column (205) is in contact with the inner wall of the sliding groove (203), and the sliding column (205) and the protruding column (204) are connected by threads.

4. A high-performance rolling roll according to claim 1, characterized in that, The epoxy coating top layer (111) is made of epoxy coating containing microcapsules, the capsules having a diameter of 50 μm and containing epoxy resin.

5. A high-performance rolling roll according to claim 1, characterized in that, The protective plate (108) has rounded transition parts at each corner, and the surfaces of the multiple sets of protective plates (108) are attached together.

6. A high-performance rolling roll according to claim 1, characterized in that, The protective plate (108) is an integrated structure with the trapezoidal block (106) and the connecting plate (107), and the surface of the trapezoidal block (106) is in contact with the inner wall of the trapezoidal groove (105).

7. A high-performance rolling roll according to claim 1, characterized in that, The protective plate (108), trapezoidal block (106), and connecting plate (107) are each provided with twelve sets, and the protective plate (108), trapezoidal block (106), and connecting plate (107) are arranged symmetrically to each other.

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