Heating roller, pressurization system, and method for dismounting a heating roller
Patent Information
- Application Number
- CN202610944506.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-26
- Publication Date
- 2026-09-22
AI Technical Summary
然而，这些拆卸方式容易损伤各个部件，造成辊体等部件变形，且由于拆卸力不可控，操作过程中存在较大的安全隐患，易导致部件严重损坏，进而降低了再装配精度，增加了维修成本与停机时间
[0013]本申请提供的加热辊至少具有以下一种有益效果：通过设置在辊轴与辊体中心部的配合面上设置槽体，槽体被配置为在加热辊的非工作状态下被注入介质且在介质被加压至预定压力时，使中心部与所述辊轴分离，实现了辊轴与辊体平稳可控的分离，避免了机械硬性接触。能够实现不敲击、不拉拔、不高温加热，保护辊轴与辊体的配合表面质量，可重复使用零件且精度仍满足使用要求。通过控制介质压力，产生足够大且稳定的分离力，轻松应对锈死、过盈配合等严苛情况，实现了拆卸力的均匀可控。此外，还提高了维修效率与操作的安全性，无需大型工装，减少设备停机时间，操作简单，降低了维修人员劳动强度与作业风险。
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Figure CN122803099A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of industrial heating technology, and in particular to a heating roller, a pressurizing system, and a method for disassembling the heating roller. Background Technology
[0002] Typically, after prolonged operation in high-temperature, high-humidity, and corrosive environments, the mating surfaces of heated roller shafts and bodies are prone to corrosion, seizing, or fretting wear, making separation of the shaft and body difficult. Currently, the common methods of disassembly using external force include three main approaches: first, directly striking the edge of the roller body with tools such as copper rods or hammers, or using set screws to push it out; second, using a puller to pull it out by hooking the outer edge of the roller body; and third, heating the roller body to expand it so that it can be pulled out by external force. However, these disassembly methods easily damage various components, causing deformation of the roller body and other parts. Furthermore, due to the uncontrollable disassembly force, there are significant safety hazards during operation, which can easily lead to serious damage to components, reducing reassembly accuracy and increasing maintenance costs and downtime. In addition, the uncontrollable degree of heating can alter the metallographic structure of the materials, making disassembly even more difficult after the roller shaft elongates due to heat, and posing a fire risk. Therefore, there is an urgent need for a heated roller that is easy to disassemble, ensuring that the disassembly force is uniform and controllable, and that operation is safe, without damaging the components during the disassembly of the shaft and body. Summary of the Invention
[0003] This application provides a heating roller, comprising: a roller body including a housing and a central portion located within the housing, the central portion having a mounting cavity; a roller shaft at least partially disposed within the mounting cavity and mating with the inner surface of the mounting cavity; a drive mechanism connected to the roller shaft and configured to drive the roller body to rotate via the roller shaft during the working state of the heating roller; and a groove disposed on the mating surface between the roller shaft and the central portion, configured to be injected with a medium during the non-working state of the heating roller, and to separate the central portion from the roller shaft when the medium is pressurized to a predetermined pressure.
[0004] In one embodiment, the roller further includes a channel portion communicating with the tank for injecting the medium into the tank in the non-operating state.
[0005] In one embodiment, the groove is provided on the inner surface of the mounting cavity; and / or the groove is provided on the outer surface of the roller.
[0006] In one embodiment, the heating roller further includes a connector component disposed within the mounting cavity and opposite to the roller shaft, and the connector component communicating with the channel portion for injecting the medium into the channel portion in the non-working state.
[0007] In one embodiment, the inner surface of the mounting cavity is provided with the groove; the groove includes a first surface and a second surface disposed opposite to each other in the axial direction of the heating roller, wherein the area of the first surface is larger than the area of the second surface.
[0008] In one embodiment, the outer surface of the roller is provided with the groove; the groove includes a third surface and a fourth surface disposed opposite to each other in the axial direction of the heating roller, wherein the area of the fourth surface is larger than the area of the third surface.
[0009] In one embodiment, the mating surface between the roller shaft and the center portion forms an angle with the axial direction of the heating roller.
[0010] In one embodiment, the heating roller further includes a heating assembly disposed within the cavity formed by the central portion and the outer shell, for heating the outer shell.
[0011] This application provides a pressurization system, including a heating roller and a pressurization device as described above. The pressurization device is connected to the tank and is used to inject the medium into the tank and pressurize the medium to a predetermined pressure when the heating roller is not in operation, so as to separate the center part from the roller shaft.
[0012] This application provides a method for disassembling a heating roller, which is used to disassemble the heating roller as described above. The disassembly method includes: connecting a pressurizing device to the groove of the heating roller when the heating roller is not in operation; turning on the pressurizing device to inject a medium into the groove and pressurize it; adjusting the pressure in the groove to a predetermined pressure to separate the center part from the roller shaft; and after the roller shaft is separated from the center part, turning off the pressurizing device and depressurizing the groove.
[0013] The heating roller provided in this application has at least one of the following beneficial effects: By setting a groove on the mating surface of the roller shaft and the center of the roller body, the groove is configured to be filled with a medium when the heating roller is not in operation, and when the medium is pressurized to a predetermined pressure, the center of the roller separates from the roller shaft, achieving a smooth and controllable separation of the roller shaft and the roller body, avoiding mechanical hard contact. It achieves separation without impact, pulling, or high-temperature heating, protecting the surface quality of the mating surfaces of the roller shaft and the roller body, allowing for reusable parts while maintaining the required precision. By controlling the medium pressure, a sufficiently large and stable separation force is generated, easily handling harsh conditions such as rust and interference fits, achieving uniform and controllable disassembly force. Furthermore, it improves maintenance efficiency and operational safety, eliminating the need for large tooling, reducing equipment downtime, simplifying operation, and lowering the labor intensity and operational risks for maintenance personnel. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A cross-sectional schematic diagram of a heating roller provided in an exemplary embodiment of this application; Figure 2 A cross-sectional schematic diagram of a roller provided in an exemplary embodiment of this application; Figure 3 A cross-sectional schematic diagram of a roller body provided in an exemplary embodiment of this application; Figure 4 A cross-sectional schematic diagram of a heating roller provided for another exemplary embodiment of this application; Figure 5 for Figure 4 Enlarged view of part A in the middle; Figure 6 A cross-sectional schematic diagram of a heating roller provided in yet another exemplary embodiment of this application; Figure 7 for Figure 6 Enlarged view of part B in the middle; Figure 8 A schematic cross-sectional view of a pressurization system provided in an exemplary embodiment of this application; Figure 9 A schematic diagram showing the disassembled joint component 50 and sealing joint 205 of a pressurization system provided in an exemplary embodiment of this application; The following are the labeling elements in the figure: 100: Heating roller; 10: Roller body; 11: Outer shell; 12: Center section; 121: Mounting cavity; 13: Cavity formed by the center section and the outer shell; 20: Roller shaft; 21: Channel section; 30: Drive mechanism; 40: Tank; 41: First surface; 42: Second surface; 43: Third surface; 44: Fourth surface; 50: Connector components; 60: Heating component; 200: Pressurization device; 201: Pressurization pipe; 202: Storage container; 203: Valve; 204: Pressurization pump; 205: Sealing joint; 1000: Pressurization system. Detailed Implementation
[0015] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
[0016] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terminology, "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.
[0017] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0018] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.
[0020] The purpose of this application is to provide a heating roller that is easy to disassemble, so that the components are not damaged when disassembling the roller shaft and roller body, the disassembly force is uniform and controllable, and the operation is safe. This solves the technical problems of uncontrollable disassembly force, component damage and deformation, difficulty in disassembly and safety hazards in the existing disassembly schemes for roller shaft and roller body.
[0021] Figure 1 The illustrated embodiment provides a heating roller 100, which may include at least a roller body 10, a roller shaft 20, a drive mechanism 30, and a trough 40.
[0022] Reference Figure 1 - Figure 3 The roller body 10 may include a housing 11 and a central portion 12 located within the housing 11. A mounting cavity 121 may be provided within the central portion 12. The mounting cavity 121 may accommodate components for use with the roller body 10, such as a roller shaft 20.
[0023] Reference Figure 1 - Figure 2 The roller shaft 20 may be at least partially disposed within the mounting cavity 121 and engage with the inner surface of the mounting cavity 121. The engagement connection may include, for example, a tapered engagement connection, a tight engagement connection, and other possible connection methods. The engagement connection between the roller body 10 and the roller shaft 20 ensures the concentricity of the roller body 10 and the roller shaft 20 during operation of the heating roller (e.g., in working condition) and guarantees the reliability of torque transmission.
[0024] The drive mechanism 30 is connected to the roller shaft 20. The drive mechanism 30 is configured to drive the roller body 10 to rotate via the roller shaft 20 when the heating roller 100 is in operation. For example, the drive mechanism 30 and the roller shaft 20 may include a rigid fixed connection, or they may include a circumferential fixed connection via a key connection to transmit torque. Since the roller body 10 and the roller shaft 20 are connected, when the drive mechanism 30 drives the roller shaft 20 to rotate synchronously, it further drives the roller body 10 to rotate.
[0025] In some embodiments, the working state of the heating roller 100 may include the operation of the drive mechanism 30, which drives the roller body 10 to rotate via the roller shaft 20. For example, the drive mechanism 30, the roller body 10, and the roller shaft 20 are all rotating. Furthermore, the non-working state of the heating roller 100 may include the cessation of rotation of the drive mechanism 30, the roller body 10, and the roller shaft 20. In the non-working state, the roller body 10 and the roller shaft 20 can be disassembled, separated, and reassembled.
[0026] The trough 40 is disposed on the mating surface between the roller shaft 20 and the center portion 12, and is configured to allow the center portion 12 to separate from the roller shaft 20 when the heating roller 100 is not in operation and when the medium is pressurized to a predetermined pressure. For example, the trough 40 can be a cavity structure. For example, the trough 40 can be an annular cavity or a groove.
[0027] In some embodiments, the medium may include a gaseous medium or a liquid medium (e.g., hydraulic oil or lubricating oil). After the heating roller 100 is injected with the medium in a non-operating state, for example, after the medium fills the tank 40, the pressure inside the tank 40 can be adjusted by controlling the pressure of the medium.
[0028] In some embodiments, the pressure of the medium is adjustable and controllable, for example, the pressure can be increased or decreased at an adjustable rate, or it can be kept constant at a preset pressure value. The preset pressure can be a pressure range, for example, a pressure range of 50~200MPa. When the medium is pressurized to the preset pressure range, the pressure on the tank 40 can cause relative displacement between the roller 10 and the roller shaft 20. Furthermore, the degree of displacement can be controlled by adjusting the pressure of the medium until the center portion 12 separates from the roller shaft 20.
[0029] In some embodiments, the roller body 10 may include a guide disc.
[0030] Reference Figure 1 - Figure 2 In one embodiment, the roller 20 may include a channel portion 21 that communicates with the tank 40 for injecting a medium into the tank 40 in a non-working state.
[0031] Reference Figure 3 - Figure 4 The mounting cavity 121 can be an inner hole with multiple segments, which can include segments of various diameters such as cylindrical inner holes and tapered inner holes, for accommodating the roller shaft 20 such that the inner surface of the mounting cavity 121 mates with the outer surface of the roller shaft 20. The multiple segments can include one or more hole segments arranged along the axial direction, such as tapered hole segments and cylindrical hole segments.
[0032] Reference Figure 4 - Figure 5 In one embodiment, the inner surface of the mounting cavity 121 is provided with a groove 40. Figure 5 for Figure 4 The enlarged view of section A in the middle is used to more clearly show the groove 40 disposed on the inner surface of the mounting cavity 121. The groove 40 includes a first surface 41 and a second surface 42 disposed opposite to each other in the axial direction of the heating roller 100, wherein the area of the first surface 41 is larger than the area of the second surface 42. The area of the first surface 41 can be the projected area of the groove 40 in the axial direction. When a medium is injected into the groove 40 and the medium is pressurized to a predetermined pressure, pressure is applied to the oppositely disposed first surface 41 and second surface 42. Since the area of the first surface 41 is larger than the area of the second surface 42, the first surface 41 and the second surface 42 are subjected to axial forces of different magnitudes, thereby causing the roller body 10 and the roller shaft 20 to be subjected to axial forces in opposite directions, resulting in relative displacement until they separate from each other.
[0033] Reference Figure 6 - Figure 7 In one embodiment, the groove 40 is provided on the outer surface of the roller 20. Figure 7 for Figure 6 The enlarged view of section B in the middle section is used to more clearly show the groove 40 disposed on the outer surface of the roller 20. The groove 40 includes a third surface 43 and a fourth surface 44 disposed opposite to each other in the axial direction of the heating roller 100, wherein the area of the fourth surface 44 is larger than the area of the third surface 43. When a medium is injected into the groove 40 and the medium is pressurized to a predetermined pressure, pressure is applied to the oppositely disposed third surface 43 and fourth surface 44. Since the area of the fourth surface 44 is larger than the area of the third surface 43, the third surface 43 and the fourth surface 44 are subjected to axial forces of different magnitudes, thereby causing the roller 10 and the roller 20 to be subjected to axial forces in opposite directions, resulting in relative displacement until they separate from each other.
[0034] In one embodiment, the mating surface between the roller shaft 20 and the center portion 12 forms an angle with the axial direction of the heating roller 100. For example, in Figure 4 - Figure 7 In this embodiment, parts A and B are located at a conical hole section of the mounting cavity 121. At the conical hole section, the mating surface between the roller 20 and the center part 12 can be a conical surface. In some practical applications, for example, the conical surface can be set to have a taper of 1:20, and the specific taper value or taper range is not limited.
[0035] Reference Figure 8 In one embodiment, the heating roller 100 may further include a connector component 50 disposed within the mounting cavity 121 and opposite to the roller shaft 20, and communicating with the channel portion 21 for injecting media into the channel portion 21 in a non-operating state. The connector component 50 may be at least partially disposed on the housing 11 and at least partially disposed on the central portion 12. For example, in a non-operating state, the connector component 50 may be a media storage device, allowing the media to enter the channel portion 21 via the head component 50 and thus into the tank 40 when injected.
[0036] Reference Figure 8 In one embodiment, the heating roller 100 may further include a heating assembly 60, which is disposed in the cavity formed by the central portion 12 and the outer shell 11, for heating the outer shell 11.
[0037] Figure 8The illustrated embodiment provides a pressurization system 1000, which includes a heating roller 100 and a pressurization device 200. The pressurization device 200 is connected to the groove 40 of the heating roller 100 and is used to inject a medium into the groove 40 and pressurize the medium to a predetermined pressure when the heating roller 100 is not in operation, so as to separate the center portion 12 from the roller shaft 20.
[0038] Reference Figure 8 In one embodiment, the pressurizing device 200 may include a pressurizing pipe 201, a reservoir 202, a valve 203, a pressurizing pump 204, and a sealing joint 205. The pressurizing pipe 201 may be a flexible or rigid tubular component for conveying high-pressure media. One end of the pressurizing pipe 201 is connected to the outlet of the valve 203, and the other end is fitted with the sealing joint 205. The reservoir 202 is used to store media, which may include hydraulic oil or gas. The reservoir 202 may be a box, tank, or container, having an inlet and an outlet. The inlet of the pressurizing pump 204 is connected to the outlet of the reservoir 202 for pressurizing the media to a predetermined pressure. The valve 203 is located on the outlet pipeline of the pressurizing pump 204 for controlling the supply and cutoff of the media. The pressurizing pump 204 may be a manual pump, an electric pump, or a pneumatic pump for boosting low-pressure fluid to the required pressure. The valve 203 may be a shut-off valve, a check valve, or a solenoid valve, etc., for controlling the opening and closing of the media flow path. The sealing joint 205 is used for a sealed connection with the connector component 50 of the heating roller 100, thereby enabling reliable transmission of the medium. The sealing joint 205 can be a quick connector, a threaded connector, or a tapered sealing connector, used to prevent medium leakage. The connector component 50 can be an extension connector, which is sealed to the sealing joint 205, thereby connecting the pressurized pipe 201 and the channel section 21.
[0039] Reference Figure 8 - Figure 9 , Figure 9 This is a schematic diagram showing the disassembled joint component 50 and sealing joint 205. In the actual assembled state of the pressurizing system 1000, the two are connected to each other and form a fluid connection. In one embodiment, the pressurizing device 200 can be a hydraulic press, oil press, etc. Since the sealing joint 205 of the pressurizing device 200 may have different models and structures, the joint component 50 can be designed according to different sealing joints 205 to ensure a sealed connection.
[0040] In one embodiment, the roller can be placed horizontally or at an angle to the horizontal plane. In the case of a horizontal placement, the axial direction can be horizontal.
[0041] This application provides a method for disassembling a heating roller 100. The disassembly method includes: connecting a pressurizing device 200 to the groove 40 of the heating roller 100 when the heating roller 100 is not in operation; turning on the pressurizing device 200 to inject a medium into the groove 40 and pressurize it; adjusting the pressure in the groove 40 to a predetermined pressure to separate the center part 12 from the roller shaft 20; and after the roller shaft 20 is separated from the center part 12, turning off the pressurizing device 200 and depressurizing the groove 40.
[0042] Reference Figure 8 In one embodiment, the above-described disassembly method can be applied to the heating roller. An annular cavity (e.g., an annular groove is formed on the inner wall of the guide disc or the outer circle of the shaft) can be pre-machined in the heating roller to store the medium, so that the heating roller has the structure of the heating roller 100 described above.
[0043] With the heating roller 100 not in operation, remove oil and rust from the end face of the roller body 10 (e.g., guide disc) and around the connector component 50 (e.g., oil inlet), and confirm that the pressurizing device 200 (e.g., hydraulic press) and pressurizing pipe 201 (e.g., high-pressure hose) are reliably connected. Connect the pressurizing pipe 201 of the pressurizing device 200 to the groove 40 of the heating roller 100 by connecting the sealing connector 205 to the connector component 50. Start the pressurizing device 200 to inject the medium into the groove 40 and pressurize it. The pressure range may include, but is not limited to, 50~200MPa. The specific pressure setting can be selected according to the interference fit between the roller shaft 20 and the roller body 10 and the degree of corrosion. The hydraulic pressure acts on the axial projected areas (e.g., the first surface 41 and the second surface 42) on both sides of the groove 40 (e.g., annular cavity), generating an axial force that pushes the roller body 10 toward the shaft end. As the oil pressure is applied evenly to the annular area of the entire trough 40, the roller 10 will move smoothly along the axial direction until it is completely separated from the roller shaft 20. Figure 8 The tank 40 in the middle can be adopted Figure 5 The installation is arranged on the inner surface of the mounting cavity 121 as shown. After the center 12 of the roller body 10 is separated from the roller shaft 20, the pressurizing device 200 is turned off and the pressure in the tank 40 is released. The roller body 10 is then removed and the residual oil is cleaned.
[0044] In one embodiment, it may be necessary to repeat the disassembly method of the heated roller 100. If the center part 12 is not completely separated from the roller shaft 20 after one oil injection, the oil pressure may be appropriately increased or the pressure may be maintained for a period of time to further loosen the rust layer by utilizing the penetration effect of the oil.
[0045] In an experiment, using oil as the medium, after injecting 70MPa high-pressure oil into the tank 40, the roller 10 smoothly detached from the roller shaft 20 within 3 seconds, with no scratches or deformation on the mating surfaces. Furthermore, after multiple disassemblies and reassemblies, the mating precision still met the usage requirements. This contrasts sharply with the traditional pull-pull method, which resulted in a 0.3mm indentation on the edge of the guide disc. The heating roller and its disassembly method provided in this application, by setting a groove on the mating surface between the roller shaft and the center of the roller body, and connecting the pressurizing device to the groove of the heating roller when the heating roller is not in operation, and injecting the medium into the groove, separates the center of the roller from the roller shaft, achieving a smooth and controllable separation of the roller shaft and roller body, avoiding mechanical hard contact. This method achieves separation without impact, pull, or high-temperature heating, protecting the mating surface quality of the roller shaft and roller body, allowing for reusable parts while maintaining the required precision. By controlling the medium pressure, a sufficiently large and stable separation force is generated, easily handling harsh conditions such as rust and interference fits, achieving uniform and controllable disassembly force. In addition, it improves maintenance efficiency and operational safety, eliminates the need for large tooling, reduces equipment downtime, simplifies operation, and reduces the labor intensity and operational risks for maintenance personnel.
[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A heating roller (100), characterized in that, include: The roller body (10) includes a housing (11) and a central portion (12) located within the housing (11), and the central portion (12) is provided with a mounting cavity (121). The roller (20) is at least partially disposed within the mounting cavity (121) and is connected to the inner surface of the mounting cavity (121); A drive mechanism (30), connected to the roller shaft (20), is configured to drive the roller body (10) to rotate via the roller shaft (20) during the operation of the heating roller (100); and The trough (40) is disposed on the mating surface of the roller (20) and the center portion (12), and is configured to be injected with a medium in the non-working state of the heating roller (100) and to separate the center portion (12) from the roller (20) when the medium is pressurized to a predetermined pressure.
2. The heating roller (100) as described in claim 1, characterized in that, The roller (20) includes a channel (21) that communicates with the tank (40) and is used to inject the medium into the tank (40) in the non-working state.
3. The heating roller (100) as described in claim 1, characterized in that, The groove (40) is provided on the inner surface of the mounting cavity (121); and / or The groove (40) is provided on the outer surface of the roller (20).
4. The heating roller (100) as described in claim 2, characterized in that, The heating roller (100) further includes a connector component (50), which is disposed in the mounting cavity (121) and opposite to the roller shaft (20), and the connector component (50) communicates with the channel portion (21) for injecting the medium into the channel portion (21) in the non-working state.
5. The heating roller (100) as described in claim 3, characterized in that, The inner surface of the mounting cavity (121) is provided with the groove (40); the groove (40) includes a first surface (41) and a second surface (42) disposed opposite to each other in the axial direction of the heating roller (100), wherein the area of the first surface (41) is larger than the area of the second surface (42).
6. The heating roller (100) as described in claim 3, characterized in that, The outer surface of the roller (20) is provided with the groove (40); the groove (40) includes a third surface (43) and a fourth surface (44) disposed opposite to each other in the axial direction of the heating roller (100), wherein the area of the fourth surface (44) is larger than the area of the third surface (43).
7. The heating roller (100) as described in claim 1, characterized in that, The mating surface between the roller shaft (20) and the center part (12) forms an angle with the axial direction of the heating roller (100).
8. The heating roller (100) as described in any one of claims 1-7, characterized in that, The heating roller (100) further includes a heating assembly (60), which is disposed in the cavity formed by the central part (12) and the outer shell (11) for heating the outer shell (11).
9. A pressurization system (1000), characterized in that, Includes a heating roller (100) as described in any one of claims 1-8 and a pressurizing device (200), the pressurizing device (200) being in communication with the tank (40) for injecting the medium into the tank (40) and pressurizing the medium to a predetermined pressure when the heating roller (100) is not in operation, so as to separate the center portion (12) from the roller shaft (20).
10. A method for disassembling a heating roller (100), characterized in that, The method for disassembling the heating roller (100) according to any one of claims 1-8 includes: When the heating roller (100) is not in operation, the pressurizing device (200) is connected to the groove (40) of the heating roller (100); Turn on the pressurization device (200) to inject the medium into the tank (40) and pressurize it; The pressure inside the tank (40) is adjusted to a predetermined pressure to separate the center portion (12) from the roller (20); and After the roller (20) separates from the center (12), the pressurizing device (200) is turned off and the pressure in the tank (40) is released.