A fiber roller outside a heat treatment furnace

Abstract

This invention provides an external fiber roller for heat treatment furnaces, including a conveying roller, a fiber roller sleeve fitted onto the conveying roller, and two connecting components. The fiber roller sleeve includes a ring-shaped composite fiber layer and a protective layer. Multiple anti-slip units are formed on the conveying roller, each including multiple anti-slip grooves. Anti-slip protrusions are formed on the composite fiber layer, which is embedded in the anti-slip grooves through the protrusions to be fitted and connected to the outer periphery of the conveying roller. The protective layer is connected to the outer periphery of the composite fiber layer. This combination of the fiber roller sleeve and the conveying roller provides excellent heat insulation, effectively reducing heat conduction speed, minimizing temperature loss during material transport, and ensuring the quality stability of the material after heat treatment. Furthermore, it is lightweight, significantly reducing the overall weight of the roller shaft compared to traditional metal rollers. By modifying the surface structure between the conveying roller and the fiber roller sleeve, the connection and anti-slip properties are greatly improved, ensuring optimal conveying performance.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment conveying roller technology, and in particular to a fiber roller for heat treatment furnace. Background Technology

[0002] Heat treatment is a core process in the steel, non-ferrous metals, and machinery manufacturing industries, ensuring the mechanical and performance properties of workpieces. The continuous and stable operation of the production line and the quality of the final product highly depend on the reliability of each key transmission component. Among them, the external conveyor rollers, as the core transmission element connecting the heat treatment furnace with subsequent processes (such as cooling and finishing), directly undertake the task of transferring high-temperature workpieces (such as steel plates, forgings, and special alloy components). Their performance has a decisive impact on the efficiency, cost, and product qualification rate of the entire heat treatment process.

[0003] Currently, most mainstream furnace conveyor rollers in the industry are made of metal, commonly including carbon steel and ordinary low-alloy steel. While these metal rollers possess a certain structural strength and can withstand the impact loads of heat-treated workpieces, their inherent defects gradually become apparent under long-term operation at high temperatures of 300-800℃, becoming a key bottleneck restricting the improvement of production line quality and efficiency. For example, the rapid heat conduction of metal rollers can easily lead to a sudden drop in localized material temperature, affecting the quality of the heat-treated material. Furthermore, the large weight of metal rollers increases the load on the drive unit, resulting in higher energy consumption. In addition, direct contact between metal and high-temperature materials can easily cause adhesion, affecting not only the stability of material conveying but also causing wear on the rollers and shortening their service life. Conventional technology can use combined conveyor roller structures to address heat transfer issues, but the relative sliding between these combined structures can sometimes affect the conveying effect.

[0004] Therefore, it is necessary to propose a heat treatment furnace external fiber roller to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main objective of this invention is to provide a fiber roller outside the heat treatment furnace to solve the problem that the heat conduction of the existing furnace conveyor roller is fast, and the conveyor roller with a combined structure may affect the conveying effect.

[0006] To achieve the above objectives, this utility model provides an external fiber roller for heat treatment furnaces, comprising a conveying roller, a fiber roller sleeve fitted onto the conveying roller, and two connecting assemblies, wherein the two connecting assemblies are arranged opposite to each other along the axial direction of the conveying roller; wherein,

[0007] The fiber roller sleeve is held between the two connecting components, which are connected to the conveying roller;

[0008] The fiber roller sleeve includes a ring-shaped composite fiber layer and a protective layer. The conveying roller has multiple anti-slip units spaced apart along its own axial direction. Each anti-slip unit includes multiple anti-slip grooves spaced apart along its own circumference. The composite fiber layer has anti-slip protrusions that correspond one-to-one with the anti-slip grooves. The composite fiber layer is embedded in the anti-slip grooves through the anti-slip protrusions to be sleeved and connected to the outer periphery of the conveying roller. The protective layer is connected to the outer periphery of the composite fiber layer.

[0009] Preferably, the composite fiber layer includes a high-temperature resistant ceramic fiber layer and a high-silica fiber cloth layer arranged sequentially from the inside to the outside, and the anti-slip protrusions are formed on the inner circumferential side of the high-temperature resistant ceramic fiber layer.

[0010] Preferably, the protective layer is made of stainless steel wire mesh, which covers the outer periphery of the high-silica fiber cloth layer.

[0011] Preferably, the outer periphery of the high-temperature resistant ceramic fiber layer is provided with a plurality of convex rib units spaced apart along the axial direction of the conveying roller. Each convex rib unit includes a plurality of V-shaped convex ribs spaced apart along the circumferential direction of the conveying roller. The inner periphery of the high-silica fiber cloth layer is provided with V-shaped grooves that correspond one-to-one with the V-shaped convex ribs. The high-silica fiber cloth layer is embedded in the V-shaped convex ribs through the V-shaped grooves to interlock and connect with the high-temperature resistant ceramic fiber layer.

[0012] Preferably, the conveying roller includes a roller body and two shaft heads arranged opposite each other along the axial direction of the roller body, one end of the shaft head is embedded in the roller body, and the other end of the shaft head extends outward.

[0013] Preferably, the connecting assembly includes an annular end plate, and the two ends of the roller body are provided with a plurality of threaded holes extending radially therefrom. The annular end plate is provided with bolt holes that correspond one-to-one with the threaded holes. The annular end plate is connected to the conveying roller by bolts passing through the bolt holes and extending into the threaded holes.

[0014] Preferably, the connecting assembly further includes an elastic buffer pad, and the annular end plate is recessed on the side facing the composite fiber layer to form an annular groove, and the elastic buffer pad is built into the annular groove to abut against the annular end plate and the composite fiber layer.

[0015] Preferably, the anti-slip groove is arc-shaped.

[0016] Preferably, the shaft head has a keyway inside, which is used to connect with an external drive device.

[0017] Preferably, the thickness of the composite fiber layer is 30mm to 35mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a heat treatment furnace external fiber roller, including a conveying roller, a fiber roller sleeve sleeved on the conveying roller, and two connecting components. The two connecting components are arranged opposite each other along the axial direction of the conveying roller. The fiber roller sleeve abuts between the two connecting components. The connecting components are connected to the conveying roller. The fiber roller sleeve includes a ring-shaped composite fiber layer and a protective layer. The conveying roller has multiple anti-slip units spaced apart along its own axial direction. Each anti-slip unit includes multiple anti-slip grooves spaced apart along its own circumference. The composite fiber layer has anti-slip protrusions that correspond one-to-one with the anti-slip grooves. The composite fiber layer is embedded in the anti-slip grooves through the anti-slip protrusions to be sleeved and connected to the outer periphery of the conveying roller. The protective layer is connected to the outer periphery of the composite fiber layer. This combination of fiber roller sleeve and conveyor roller creates excellent thermal insulation, effectively reducing heat conduction speed, minimizing temperature loss during material transport, and ensuring the quality stability of the material after heat treatment. Furthermore, it is lightweight, significantly reducing the overall weight of the roller shaft compared to traditional metal rollers. By modifying the surface structure between the conveyor roller and the fiber roller sleeve, the connection's anti-slip properties are greatly improved, ensuring optimal conveying performance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional schematic diagram of the overall structure in one embodiment of the present invention;

[0022] Figure 2 This is a partial enlarged cross-sectional view of the overall structure in one embodiment of the present invention;

[0023] Figure 3 for Figure 1 A cross-sectional view along the AA direction.

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Explanation of icon numbers:

[0026] 10. Conveyor roller; 110. Roller body; 111. Anti-slip groove; 120. Shaft head; 121. Keyway; 20. Fiber roller sleeve; 210. Composite fiber layer; 211. High-temperature resistant ceramic fiber layer; 2111. V-shaped protrusion; 212. High-silica fiber cloth layer; 2121. V-shaped groove; 213. Anti-slip protrusion; 220. Protective layer; 30. Connecting assembly; 310. Annular end plate; 311. Annular groove; 320. Elastic buffer pad. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] 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.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see the appendix Figure 1-3 The present invention provides an embodiment of a heat treatment furnace external fiber roller, comprising a conveying roller 10, a fiber roller sleeve 20 sleeved on the conveying roller 10, and two connecting components 30. The two connecting components 30 are arranged opposite to each other along the axial direction of the conveying roller 10, and the specific scheme is as follows:

[0032] The fiber roller sleeve 20 abuts between the two connecting components 30, and the connecting components 30 are connected to the conveying roller 10. The fiber roller sleeve 20 includes a ring-shaped composite fiber layer 210 and a protective layer 220. The conveying roller 10 has a plurality of anti-slip units spaced apart along its own axial direction. Each anti-slip unit includes a plurality of anti-slip grooves 111 spaced apart along its own circumference. The composite fiber layer 210 has anti-slip protrusions 213 that correspond one-to-one with the anti-slip grooves 111. The composite fiber layer 210 is embedded in the anti-slip grooves 111 through the anti-slip protrusions 213 to be sleeved and connected to the outer periphery of the conveying roller 10. The protective layer 220 is connected to the outer periphery of the composite fiber layer 210.

[0033] Specifically, the fiber roller outside the heat treatment furnace in this application includes a conveying roller 10, a fiber roller sleeve 20, and two connecting components 30. The conveying roller 10 is the roller itself, which can be a combination of a roller body 110 and two shaft heads 120. The roller body 110 is used to convey the slab, while the shaft heads 120 are used to connect to the drive motor to rotate the entire roller body 110. This type of roller, which is different from the type of roller that runs through the entire roller body 110, greatly reduces its own weight and reduces the drive load. The limiting roller sleeve is fitted outside the roller body 110 to prevent the roller body 110 from directly contacting the metal material (slab) to reduce the heat conduction speed of the material. The connecting components 30 are used to stabilize the fiber roller sleeve 20 to prevent the limiting roller sleeve from loosening.

[0034] The fiber roller sleeve 20 includes a composite fiber layer 210 and a protective layer 220, both of which are ring-shaped for easy fitting around the roller body 110. The composite fiber layer 210 is composed of multiple layers to reduce heat transfer layer by layer, providing better insulation than a single fiber layer. In a preferred embodiment, the composite fiber layer 210 includes a high-temperature resistant ceramic fiber layer 211 and a high-silica fiber cloth layer 212 arranged sequentially from the inside to the outside. The high-temperature resistant ceramic fiber layer 211 has excellent heat insulation properties and can effectively reduce heat transfer, while the high-silica fiber cloth layer 212 further enhances the high-temperature resistance and structural strength of the fiber roller sleeve 20. The multi-layer arrangement forms a secondary heat insulation barrier, thereby effectively reducing the heat conduction rate, reducing the temperature loss of materials during transportation, and ensuring the quality stability of materials after heat treatment. The composite fiber layer 210 combined with the roller body 110 results in a lighter fiber roller sleeve 20, significantly reducing the overall weight of the roller shaft compared to the traditional metal roller body 110, thus reducing the load on the drive device and energy consumption. Simultaneously, the fiber layer has a certain elasticity, which can buffer the impact of materials on the roller sleeve, reducing wear and extending the service life of the fiber roller. Preferably, the thickness of the composite fiber layer 210 can be set to 30mm-35mm, which can be set as needed by those skilled in the art. The protective layer 220 is used to prevent the composite fiber layer 210 from falling off. In a preferred embodiment, stainless steel wire mesh can be used as the protective layer 220. The stainless steel wire mesh can protect the internal fiber layer and prevent fiber shedding, while avoiding direct adhesion to materials. Furthermore, the structure of the stainless steel wire mesh does not affect the thermal insulation performance of the fiber layer.

[0035] It is understood that since the high-temperature resistant ceramic fiber layer 211 is in direct contact with the outer periphery of the roller body 110, the anti-slip protrusions 213 are formed on the inner periphery of the high-temperature resistant ceramic fiber layer 211 to fit and connect with the anti-slip grooves 111 on the outer periphery of the roller body 110. The multiple anti-slip grooves 111 and anti-slip protrusions 213 arranged circumferentially achieve a circumferential anti-slip effect to avoid relative sliding between the fiber layer and the roller body 110, thus ensuring the conveying effect. Preferably, the anti-slip grooves 111 can be set in an arc shape, and the anti-slip protrusions 213 are also arc-shaped, so as to form a wavy annular cross section arranged around it to increase the friction between the fiber roller sleeve 20 and the roller body 110, avoid the circumferential micro-displacement of the fiber roller sleeve 20 due to centrifugal force when the roller shaft rotates at high speed, and at the same time, do not damage the structural integrity of the high-temperature resistant ceramic fiber layer 211. At the same time, multiple anti-slip units arranged axially at intervals are provided to ensure balanced anti-slip performance.

[0036] Furthermore, the two connecting components 30 are arranged opposite each other along the axial direction of the conveying roller 10 to hold the fiber roller sleeve 20 against the middle, thereby securing the installation of the limiting roller sleeve through the clamping effect, ensuring that the fiber roller sleeve 20 will not loosen or shift during high-speed rotation and material conveying, thus guaranteeing the stability of the conveying. Preferably, the connecting component 30 can be an annular end plate 310, which is easy to fit and sleeve on the outside of the roller body 110 and clamp the fiber roller sleeve 20 through the end plate surface. The annular end plate 310 can be installed and connected by bolts by opening radial threaded holes at both ends of the roller body 110, which facilitates easy disassembly and installation at any time, and makes subsequent maintenance operations simple and convenient, reducing maintenance costs.

[0037] In a preferred embodiment of the present invention, the outer periphery of the high-temperature resistant ceramic fiber layer 211 is provided with a plurality of convex rib units spaced apart along the axial direction of the conveying roller 10. Each convex rib unit includes a plurality of V-shaped convex ribs 2111 spaced apart along the circumferential direction of the conveying roller 10. The inner periphery of the high-silica fiber cloth layer 212 is provided with V-shaped grooves 2121 corresponding to the V-shaped convex ribs 2111. The high-silica fiber cloth layer 212 is embedded in the plurality of V-shaped convex ribs 2111 through the V-shaped grooves 2121 to engage and connect with the high-temperature resistant ceramic fiber layer 211.

[0038] It is worth noting that the V-shaped protrusion 2111 of the protrusion unit is used to cooperate with the V-shaped groove 2121 of the high silica-oxygen limiting cloth layer to achieve mechanical interlocking and fixing between the high-temperature resistant ceramic fiber layer 211 and the high silica-oxygen fiber cloth layer 212, so as to avoid relative sliding of the fiber layers due to the difference in thermal expansion coefficient at high temperature, while enhancing the gradient transfer efficiency of heat between layers and further optimizing the heat insulation effect.

[0039] Furthermore, the connecting assembly 30 also includes an elastic buffer pad 320. The annular end plate 310 is recessed on the side facing the composite fiber layer 210 to form an annular groove 311. The elastic buffer pad 320 is built into the annular groove 311 to abut against the annular end plate 310 and the composite fiber layer 210.

[0040] It should be understood that the annular groove 311 is used for the installation of the elastic buffer pad 320. In this way, when the end plate is tightened by bolts, the elastic buffer pad 320 can be moderately compressed, which can fill the small gap between the fiber roller sleeve 20 and the annular end plate 310, and absorb the impact load during material conveying (such as the instantaneous pressure when the workpiece is placed) through elastic deformation, so as to prevent the fiber end of the fiber roller sleeve 20 from breaking or collapsing due to long-term rigid compression.

[0041] Furthermore, a keyway 121 is provided inside the shaft head 120, which is used to connect with an external drive device.

[0042] It should be noted that the keyway 121 facilitates the transmission connection between the shaft head 120 and the drive device via a key. The presence of the keyway 121 can form a rigid engagement through "key connection" (embedding a metal key into the roller keyway 121 and the corresponding groove at the output end of the drive device), stably transmitting the torque generated by the drive device to the roller, ensuring that the roller and the drive device have "no relative sliding" and achieving synchronous rotation.

[0043] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fiber roller outside a heat treatment furnace, characterized in that, It includes a conveyor roller, a fiber roller sleeve fitted onto the conveyor roller, and two connecting assemblies, the two connecting assemblies being arranged opposite each other along the axial direction of the conveyor roller; wherein, The fiber roller sleeve is held between the two connecting components, which are connected to the conveying roller; The fiber roller sleeve includes a ring-shaped composite fiber layer and a protective layer. The conveying roller has multiple anti-slip units spaced apart along its own axial direction. Each anti-slip unit includes multiple anti-slip grooves spaced apart along its own circumference. The composite fiber layer has anti-slip protrusions that correspond one-to-one with the anti-slip grooves. The composite fiber layer is embedded in the anti-slip grooves through the anti-slip protrusions to be sleeved and connected to the outer periphery of the conveying roller. The protective layer is connected to the outer periphery of the composite fiber layer.

2. The fiber roller outside the heat treatment furnace according to claim 1, characterized in that, The composite fiber layer includes a high-temperature resistant ceramic fiber layer and a high-silica fiber cloth layer arranged sequentially from the inside to the outside, and the anti-slip protrusions are formed on the inner circumferential side of the high-temperature resistant ceramic fiber layer.

3. The fiber roller outside the heat treatment furnace according to claim 2, characterized in that, The protective layer is made of stainless steel wire mesh, which is wrapped around the outer periphery of the high-silica fiber cloth layer.

4. The fiber roller outside the heat treatment furnace according to claim 2, characterized in that, The outer periphery of the high-temperature resistant ceramic fiber layer has a plurality of convex rib units arranged at intervals along the axial direction of the conveying roller. Each convex rib unit includes a plurality of V-shaped convex ribs arranged at intervals along the circumference of the conveying roller. The inner periphery of the high-silica fiber cloth layer has V-shaped grooves that correspond one-to-one with the V-shaped convex ribs. The high-silica fiber cloth layer is embedded in the V-shaped convex ribs through the V-shaped grooves to interlock and connect with the high-temperature resistant ceramic fiber layer.

5. The fiber roller outside the heat treatment furnace according to claim 2, characterized in that, The conveying roller includes a roller body and two shaft heads arranged opposite each other along the axial direction of the roller body. One end of each shaft head is embedded in the roller body, and the other end of each shaft head extends outward.

6. The fiber roller outside the heat treatment furnace according to claim 5, characterized in that, The connecting assembly includes an annular end plate. The two ends of the roller body are provided with a plurality of threaded holes extending radially. The annular end plate is provided with bolt holes that correspond one-to-one with the threaded holes. The annular end plate is connected to the conveying roller by bolts passing through the bolt holes and extending into the threaded holes.

7. The fiber roller outside the heat treatment furnace according to claim 6, characterized in that, The connecting assembly further includes an elastic buffer pad, and the annular end plate has an annular groove recessed on the side facing the composite fiber layer. The elastic buffer pad is embedded in the annular groove to abut against the annular end plate and the composite fiber layer.

8. The fiber roller outside the heat treatment furnace according to claim 1, characterized in that, The anti-slip groove is arc-shaped.

9. The fiber roller outside the heat treatment furnace according to claim 5, characterized in that, The shaft head has a keyway inside, which is used to connect to an external drive device.

10. The fiber roller outside the heat treatment furnace according to claim 1, characterized in that, The thickness of the composite fiber layer is 30mm to 35mm.

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