Furnace cover moving rotary device for vacuum degassing furnace

Abstract

This application relates to the technical field of vacuum degassing furnace equipment, and in particular to a furnace cover moving and rotating device for a vacuum degassing furnace. The device includes a support frame, a rotating center assembly, a rotating drive assembly, and a moving component. The rotating center assembly is connected to one end of the support frame; the rotating drive assembly is connected to the opposite end of the support frame and is used to drive the support frame to rotate around the rotating axis of the rotating center assembly. The moving component is mounted on the support frame and is used to suspend the furnace cover. The moving component can move on the support frame, thereby moving the furnace cover along the X and Y directions, allowing the furnace cover to switch between different furnace bodies. Through the support frame, rotating center assembly, rotating drive assembly, and moving component, the device allows one furnace cover to meet the needs of two or more vacuum degassing furnaces, significantly reducing the cost of furnace cover procurement, installation, and maintenance. The furnace cover can be quickly switched between two or more furnace bodies, significantly shortening idle time and greatly improving equipment utilization.

Description

Technical Field

[0001] This application relates to the technical field of vacuum degassing furnace equipment, and in particular to a furnace cover moving and rotating device for a vacuum degassing furnace. Background Technology

[0002] Vacuum degassing furnaces offer significant advantages in improving material quality and processing precision due to their unique low-pressure working environment. They provide a clean and controllable environment for material processing. The vacuum environment fundamentally avoids contamination and performance degradation of materials during processing. However, their high cost and complex operation and maintenance issues are equally significant. Degassing furnaces operate mostly at atmospheric pressure, with the furnace lid needing to be sealed under vacuum for a limited time. Therefore, the furnace lid is an essential component of a vacuum degassing furnace. Due to complex on-site conditions, two degassing furnaces require two vacuum furnace lids. However, the high manufacturing cost of the furnace lids, the numerous electrical switches on them, and the high difficulty of maintenance make equipping each degassing furnace with a corresponding vacuum furnace lid too costly. Furthermore, since the degassing furnaces do not require vacuuming most of the time, the furnace lids remain idle, impacting efficiency.

[0003] To solve this problem, a furnace cover rotation device that can be used to rotate between two or more furnace bodies is needed. This device can be installed between two or more degassing furnace bodies, allowing the furnace cover to be used to vacuum and degas the furnace body in turn, which greatly reduces costs and improves work efficiency. Summary of the Invention

[0004] This application provides a furnace cover moving and rotating device for a vacuum degassing furnace, which solves the problems of high furnace cover configuration cost, low utilization rate and inconvenient switching in the prior art.

[0005] This application provides a furnace cover moving and rotating device for a vacuum degassing furnace, comprising: Support frame; The slewing center assembly is connected to one end of the carrier frame; A rotary drive assembly; the rotary drive assembly is connected to the opposite end of the support frame and is used to drive the support frame to rotate about the rotary axis of the rotary center assembly; The movable component is mounted on the support frame and is used to suspend the furnace cover. The movable component can move on the support frame and drive the furnace cover to move along the X and Y directions, so that the furnace cover can be switched between different furnace bodies.

[0006] In one possible design, the slewing center assembly includes: The base has a cylindrical cavity inside; The guide sleeve is installed on the base and extends upward along the axial direction of the cylindrical cavity; The rotary column slides within the inner wall of the guide sleeve, and its upper end is connected to the support frame. The first linear actuator, with its driving end connected to the upper end of the rotary column, is used to drive the rotary column to rise or fall along the inner wall of the guide sleeve.

[0007] In one possible design, the slewing center assembly also includes a slewing bearing mounted on a base, with a guide sleeve and a first linear actuator mounted on the slewing bearing.

[0008] In one possible design, a limiting hole is formed radially on the guide sleeve, and a limiting shaft is installed in the limiting hole. A rectangular elongated hole is formed along the axis of the rotating column. A roller bearing is fitted inside the limiting shaft, and the outer wall of the roller bearing slides in fit with the inner wall of the rectangular elongated hole. The limiting shaft is used to prevent the rotating column from rotating relative to the guide sleeve when it moves up and down along the inner wall of the guide sleeve.

[0009] In one possible design, the slewing center assembly also includes: The lower support is installed on the upper end of the rotary column, and two lower shaft seats are provided on the upper end face of the lower support. The upper support base is located above the lower support base and is connected to the bearing frame. Two upper shaft seats are provided opposite each other on the lower end face of the upper support base, and the line connecting the two upper shaft seats is perpendicular to the line connecting the two upper shaft seats. A support ring is provided between the lower support base and the upper support base, and the support ring has shaft holes corresponding to the upper shaft base and the lower shaft base respectively. Universal joints are respectively installed in the upper shaft seat and the corresponding shaft hole, and in the lower shaft seat and the corresponding shaft hole.

[0010] In one possible design, flanges are fixed to the upper and lower ends of the guide sleeve, and dustproof rings are installed on the inner side of the flanges, with the inner side of the dustproof rings abutting against the outer wall of the rotary column.

[0011] In one possible design, the slewing drive assembly includes: The traveling frame and the support frame are slidably engaged via a first guide rail slider structure; The second linear drive is mounted on the traveling frame, and the drive end is connected to the support frame; The drive wheel is installed at the lower end of the walking frame, and its axle is connected to the output shaft of the drive motor; The driven wheel is installed at the lower end of the traveling frame. An angle is formed between the axle of the driven wheel and the driving wheel. The rotation of the driving wheel can drive the driven wheel to roll on a circular path centered on the axis of rotation.

[0012] In one possible design, a limit switch is also installed on the traveling frame; and / or, a limit baffle is also installed on the traveling frame.

[0013] In one possible design, the moving component includes: Mobile rack; The fixed plate has one side that slides with the movable frame via a second guide rail slider structure, and the other side of the fixed plate slides with the support frame via a third guide rail slider structure. The guide rail direction of the second guide rail slider structure is perpendicular to the guide rail direction of the third guide rail slider structure. The third linear actuator is mounted on the support frame, and its driving end is connected to the fixed plate. It is used to drive the fixed plate to move the movable frame along the guide rail direction of the third guide rail slider structure. The fourth linear actuator, mounted on the movable frame, has its drive end connected to the fixed plate and is used to drive the movable frame to move along the guide rail direction of the second guide rail slider structure. There are two fixed plates, one of which is connected to the third linear actuator, and the other is connected to the fourth linear actuator.

[0014] In one possible design, the lower end of the movable frame is provided with a connecting lug for detachable connection to the furnace cover.

[0015] The beneficial effects of this application are as follows: The furnace cover moving and rotating device of this application, through a support frame, a rotating center assembly, a rotating drive assembly, and moving components, allows a single furnace cover to meet the needs of two or more vacuum degassing furnaces, significantly reducing the procurement, installation, and maintenance costs of the furnace cover. The furnace cover can be quickly switched between two or more furnace bodies, significantly shortening idle time and greatly improving equipment utilization. The device, with its anti-rotation rotating column, omnidirectional self-adaptive ground features, and precise XY bidirectional alignment, can adapt to complex on-site conditions, ensuring smooth lifting and rotation, precise alignment, reliable sealing between the furnace cover and the furnace opening, and stable vacuum operation quality.

[0016] Multiple limit switches and dustproof structures enhance the safety and durability of equipment operation, reduce failure rate and maintenance frequency. The overall device has a high degree of automation and can realize continuous actions of lifting, rotating, aligning and lowering. It is easy to operate and can be adapted to the transformation and upgrading of most existing vacuum degassing furnaces. It has strong versatility and has significant economic benefits and use value. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A perspective view of the furnace cover moving and rotating device for a vacuum degassing furnace provided in an embodiment of this application; Figure 2This is a front view of the furnace cover moving and rotating device for a vacuum degassing furnace provided in an embodiment of this application; Figure 3 This is a top view of the furnace cover moving and rotating device for a vacuum degassing furnace provided in an embodiment of this application; Figure 4 This is a structural schematic diagram of the slewing center assembly; Figure 5 for Figure 4 Sectional view of AA; Figure 6 for Figure 5 Sectional view of BB; Figure 7 for Figure 5 Enlarged view of the structure at point C; Figure 8 This is a schematic diagram of the support frame structure; Figure 9 This is a schematic diagram of the rotary drive assembly. Figure 10 Top view of the rotary drive assembly; Figure 11 Schematic diagram of the moving component Figure 1 ; Figure 12 Schematic diagram of the moving component Figure 2 .

[0019] Figure label: 1. Support frame; 101. Limit bolt; 2. Rotary center assembly; 201. Base; 202. Guide sleeve; 203. Rotary column; 204. First linear actuator; 205. Rotary bearing; 206. Limiting hole; 207. Limiting shaft; 208. Rectangular elongated hole; 209. Roller bearing; 210. Lower support seat; 211. Lower shaft seat; 212. Upper support seat; 213. Upper shaft seat; 214. Support ring; 215. Universal joint; 216. Flange; 217. Dustproof ring; 3. Rotary drive assembly; 301. Walking frame; 302. First guide rail slider structure; 303. Second linear actuator; 304. Drive wheel; 305. Drive motor; 306. Driven wheel; 307. Limit switch; 308. Limit baffle; 4. Moving component; 401. Moving frame; 402. Fixing plate; 403. Second guide rail slider structure; 404. Third guide rail slider structure; 405. Third linear actuator; 406. Fourth linear actuator; 407. Connecting ear. Detailed Implementation

[0020] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The following is combined Figures 1-12 This application describes the furnace cover moving and rotating device for a vacuum degassing furnace provided in the embodiments of this application.

[0022] Reference Figure 1 , Figure 2 , Figure 3 As shown in the embodiment of this application, the furnace cover moving and rotating device for a vacuum degassing furnace includes a support frame 1, a rotation center assembly 2, a rotation drive assembly 3, and a moving component 4. The rotation center assembly 2 is connected to one end of the support frame 1, and the rotation drive assembly 3 is connected to the opposite end of the support frame 1, for driving the support frame 1 to rotate around the rotation axis of the rotation center assembly 2. The moving component 4 is disposed on the support frame 1 and is used to suspend the furnace cover. The moving component 4 can move on the support frame 1 to drive the furnace cover to move along the X and Y directions, so that the furnace cover can be switched between different furnace bodies.

[0023] Through the above-mentioned overall structural design, this device can serve two furnace bodies with a single furnace cover, significantly reducing equipment investment costs. At the same time, it integrates the rotation function with the X and Y direction movement functions, allowing for quick furnace cover switching and flexible alignment. The overall layout is compact and can be directly installed between two furnace bodies, occupying a small area and having strong on-site adaptability.

[0024] Reference Figure 4 , Figure 5 As shown, in some embodiments, the rotary center assembly 2 includes a base 201, a guide sleeve 202, a rotary column 203, and a first linear actuator 204. The base 201 has a cylindrical cavity. The guide sleeve 202 is mounted on the base 201 and extends upward along the axial direction of the cylindrical cavity. The rotary column 203 slides against the inner wall of the guide sleeve 202, and its upper end is connected to the support frame 1. The driving end of the first linear actuator 204 is connected to the upper end of the rotary column 203. The first linear actuator 204 is a hydraulic cylinder, which drives the rotary column 203 to rise or fall along the inner wall of the guide sleeve 202. In this way, the rotary column 203 can rise and fall linearly along a fixed guide path, with smooth and unhindered movement. The single-point support concentrates the force, and the lifting process is stable. The guide sleeve 202 provides rigid constraint for the rotary column 203, effectively preventing skewing and shaking during the lifting process.

[0025] In some embodiments, the rotary center assembly 2 further includes a rotary bearing 205, which is mounted on the base 201. The guide sleeve 202 and the first linear actuator 204 are mounted on the rotary bearing 205. The rotary bearing 205 has low rotational resistance, high support rigidity, and high rotational positioning accuracy. It allows the guide sleeve 202 to rotate synchronously with the rotary column 203, avoiding torsional interference during rotation. It is also less prone to deformation under heavy load conditions, ensuring long-term stable operation of the device.

[0026] Reference Figure 6 As shown, in some embodiments, a limiting hole 206 is radially formed on the guide sleeve 202, and a limiting shaft 207 is provided in the limiting hole 206. A rectangular elongated hole 208 is formed along the axial direction of the rotating column 203. A roller bearing 209 is sleeved on the inner end of the limiting shaft 207, and the outer wall of the roller bearing 209 slides in contact with the inner wall of the rectangular elongated hole 208. The limiting shaft 207 is used to prevent the rotating column 203 from rotating relative to the guide sleeve 202 when it moves up and down along the inner wall of the guide sleeve 202. In this way, the rotating column 203 can be strictly constrained to move up and down only in the axial direction, completely eliminating circumferential rotation. In addition, the roller bearing 209 adopts a rolling contact method, which has low frictional resistance and low component wear. The axial rectangular elongated hole 208 can ensure stable guidance throughout the entire stroke, and the operation is free from swaying and jamming.

[0027] Reference Figure 4 , Figure 5 As shown, in some embodiments, the rotary center assembly 2 further includes a lower support 210, an upper support 212, a support ring 214, and a universal joint 215. The lower support 210 is mounted on the upper end of the rotary column 203, and two lower shaft seats 211 are provided opposite each other on the upper end face of the lower support 210. The upper support 212 is located above the lower support 210 and connected to the support frame 1. Two upper shaft seats 213 are provided opposite each other on the lower end face of the upper support 212, and the line connecting the two upper shaft seats 213 is perpendicular to the line connecting the two upper shaft seats 213. The support ring 214 is disposed between the lower support 210 and the upper support 212, and the support ring 214 has shaft holes corresponding to the upper shaft seats 213 and the lower shaft seats 211, respectively. There are multiple universal joints 215, and each universal joint 215 is respectively inserted into the upper shaft seat 213 and the corresponding shaft hole, and into the lower shaft seat 211 and the corresponding shaft hole. This universal support structure can achieve small-angle adaptive deflection, effectively compensating for errors caused by uneven ground, ensuring that the support parts always fit the ground and are evenly stressed, avoiding suspension or jamming, significantly improving the stability of rotation and lifting processes, and reducing operational vibration.

[0028] Reference Figure 7As shown, in some embodiments, flanges 216 are fixed to the upper and lower ends of the guide sleeve 202, respectively. An annular groove is provided on the inner side of the flange 216, and a dustproof ring 217 is installed within the annular groove. The inner side of the dustproof ring 217 abuts against the outer wall of the rotary column 203. The flange 216 and the dustproof ring 217 cooperate to form a reliable seal, effectively preventing dust, metal shavings, and other impurities from entering the guide mating surface, protecting the rotary column 203, guide sleeve 202, and internal bearings, reducing wear, extending equipment service life, and achieving a simple structure and stable sealing effect, essentially achieving maintenance-free operation.

[0029] Reference Figure 8 , Figure 9 , Figure 10 As shown, in some embodiments, the rotary drive assembly 3 includes a traveling frame 301, a second linear actuator 303, a drive wheel 304, and a driven wheel 306. The traveling frame 301 and the support frame 1 are slidably engaged via a first guide rail slider structure 302. The guide rail is mounted on the traveling frame 301 along the height direction, the slider is slidably engaged with the guide rail, and the end of the support frame 1 is connected to the slider. The second linear actuator 303 is mounted on the traveling frame 301 and is a hydraulic cylinder. The drive end of the hydraulic cylinder is connected to the support frame 1 for driving the support frame 1 to move up and down. The drive wheel 304 is mounted on the lower end of the traveling frame 301, and its axle is connected to the output shaft of the drive motor 305. The driven wheel 306 is mounted on the lower end of the traveling frame 301. An angle is formed between the axles of the driven wheel 306 and the drive wheel 304. The rotation of the drive wheel 304 can drive the driven wheel 306 to roll on a circular path centered on the rotary axis. Driven by the drive motor 305, the drive wheel 304 drives the walking wheel to travel along a preset arc trajectory, thereby ensuring that the rotation trajectory of the support frame 1 is accurate and does not deviate. In this way, through the rotation drive assembly 3, the lifting and rotating actions of the support frame 1 do not interfere with each other, and the action coordination is strong.

[0030] In some embodiments, a limit switch 307 is also installed at the bottom of the walking frame 301. The limit switch 307 realizes automatic detection and triggers shutdown when the rotation is in place, ensuring accurate and reliable positioning, effectively preventing risks such as over-rotation and collision, improving the automation level of the device, reducing manual intervention, and improving operational safety.

[0031] In some embodiments, a limit baffle 308 is also installed on the walking frame 301, and a limit bolt 101 is installed on the lower end of the support frame 1 near the walking frame 301. When the support frame 1 descends, the limit bolt 101 cooperates with the limit baffle 308 to play a mechanical limiting role.

[0032] Reference Figure 11 , Figure 12As shown, in some embodiments, the moving component 4 includes a moving frame 401, a fixed plate 402, a third linear actuator 405, and a fourth linear actuator 406. The upper end face of the fixed plate 402 is slidably engaged with the moving frame 401 via two sets of parallel second guide rail slider structures 403. Specifically, guide rails are mounted on the upper end face of the fixed plate 402, and the moving frame 401 is connected to the slider. The lower end face of the fixed plate 402 is slidably engaged with the support frame 1 via two sets of parallel third guide rail slider structures 404. Specifically, guide rails are mounted on the support frame 1, and the lower end face of the fixed plate 402 is connected to the slider. The guide rail direction of the second guide rail slider structure 403 is perpendicular to the guide rail direction of the third guide rail slider structure 404; that is, the guide rail direction of the second guide rail slider structure 403 is in the Y direction, and the guide rail direction of the third guide rail slider structure 404 is in the X direction.

[0033] The third linear actuator 405 is mounted on the support frame 1. The third linear actuator 405 uses an electric push rod, the drive end of which is connected to the fixed plate 402, driving the fixed plate 402 to move the moving frame 401 along the X-axis. The fourth linear actuator 406 is mounted on the moving frame 401. The fourth linear actuator 406 also uses an electric push rod, the drive end of which is connected to the fixed plate 402, driving the moving frame 401 along the Y-axis. There are two fixed plates 402; one is connected to the third linear actuator 405, and the other is connected to the fourth linear actuator 406. The second guide rail slider structure 403 and the third guide rail slider structure 404 are independent and do not interfere with each other, allowing for individual or simultaneous movement in the X and Y directions. This results in fast alignment speed and high adjustment accuracy, enabling rapid and precise alignment of the furnace cover and furnace opening, ensuring uniform sealing gaps, and improving vacuum operation.

[0034] In some embodiments, the lower end of the movable frame 401 is provided with a connecting ear 407, which is used for detachable connection with the furnace cover. The connecting ear 407 and the furnace cover are connected by bolts, which is quick to install and disassemble, easy to maintain and replace, has high connection strength and good reliability, and maintains a firm connection throughout the entire process of lifting, rotating and moving, without loosening or falling off.

[0035] The working process of the furnace cover moving and rotating device for the vacuum degassing furnace in this application is as follows: In the initial state of the device, the furnace cover is fixed by the connecting lug 407 at the lower end of the moving frame 401, smoothly covering the furnace opening of the No. 1 vacuum degassing furnace, completing the seal and entering a vacuum operation state. At this time, the base 201 is fixed to the ground, the rotating column 203 is at the lower limit position, the limit bolt 101 forms a mechanical limit, the dustproof rings 217 at the upper and lower ends of the guide sleeve 202 remain sealed, the limit switch 307 is in the reset state, and the moving component 4 is in the initial position.

[0036] After the No. 1 furnace operation is completed, the unit enters the furnace cover lifting stage. The first linear actuator 204 and the second linear actuator 303 start synchronously and extend upward. The first linear actuator 204 pushes the rotary column 203 upward along the inner wall of the guide sleeve 202. The limiting shaft 207 on the guide sleeve 202, in conjunction with the end roller bearing 209, forms a sliding fit with the axial rectangular elongated hole 208 of the rotary column 203, strictly limiting the circumferential rotation of the rotary column 203 and ensuring that it only performs linear lifting and lowering movements. The second linear actuator 303 synchronously pushes the support frame 1 upward, so that the force on both ends of the support frame 1 is balanced. The universal support seat, upper support seat 212, lower support seat 210, support ring 214 and universal shaft 215 at the upper end of the rotary column 203 form an adaptive support, which can deflect at a small angle according to the flatness of the ground on site, ensuring stable support, no suspension, and no jamming. Under the dual driving force, the support frame 1 drives the moving component 4 and the furnace cover to rise steadily until the furnace cover is completely separated from the No. 1 furnace opening. During the lifting process, the dustproof ring 217 continuously seals to prevent dust from entering the guide part.

[0037] After the furnace cover is raised to its position, the rotation switching stage begins. The rotation drive motor 305 starts, driving the drive wheel 304 to rotate. The drive wheel 304 drives the driven wheel 306 to roll synchronously. Since the axles of the drive wheel 304 and the driven wheel 306 are set at an angle, the entire traveling frame 301 moves smoothly along an arc path centered on the rotation center. The slewing bearing 205 rotates synchronously with the guide sleeve 202 and the slewing column 203 to avoid torsional interference. The support frame 1, the moving component 4, and the furnace cover rotate around the rotation center with the traveling frame 301. When the furnace cover reaches the preset position above the No. 2 furnace body, the limit switch 307 on the traveling frame 301 immediately triggers a stop signal, the rotation drive motor 305 stops running, and the furnace cover stops precisely above the No. 2 furnace opening, achieving rotation positioning.

[0038] The process then proceeds to the precise alignment stage in the X and Y directions. The third linear actuator 405 and the fourth linear actuator 406 work in tandem. The third linear actuator 405 drives the fixed plate 402 to move along the third guide rail in the X direction, causing the moving frame 401 and the furnace cover to make minor adjustments in the X direction. The fourth linear actuator 406 drives the moving frame 401 to move along the second guide rail in the Y direction, causing the moving frame 401 and the furnace cover to make minor adjustments in the Y direction. The two sets of guide rails are perpendicular to each other, and their movements do not interfere with each other, allowing for individual or simultaneous adjustment in the X and Y directions. This quickly completes the concentricity calibration of the furnace cover and the second furnace opening, ensuring that the alignment accuracy meets sealing requirements.

[0039] After alignment, the furnace cover lowering stage begins. The first linear actuator 204 and the second linear actuator 303 retract synchronously and at a constant speed, driving the rotary column 203, the support frame 1, the moving assembly 4, and the furnace cover to descend smoothly. When the cover reaches the set closing position, the limit bolt 101 and the limit baffle 308 form a mechanical hard limit, preventing the device from continuing to descend and avoiding over-stroke of the hydraulic cylinder that could cause the furnace cover to over-impact and damage the furnace body. The furnace cover lands smoothly on the second furnace body, completing the seal, and the vacuum degassing operation can be started.

[0040] After the No. 2 furnace is completed, the device repeats the above-mentioned lifting, rotation, X and Y alignment, and lowering process to rotate the furnace cover back to the No. 1 furnace body, so as to realize the uninterrupted and highly efficient alternating operation of a single furnace cover between the two vacuum degassing furnaces.

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, the terms "first" and "second" 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" or "second" 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.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A furnace cover moving and rotating device for a vacuum degassing furnace, characterized in that, include: Support frame; A slewing center assembly, wherein the slewing center assembly is connected to one end of the support frame; Slewing drive assembly; The rotary drive assembly is connected to the opposite end of the support frame and is used to drive the support frame to rotate around the rotary axis of the rotary center assembly; A movable component is disposed on the support frame. The movable component is used to suspend the furnace cover. The movable component can move on the support frame to drive the furnace cover to move along the X and Y directions, so that the furnace cover can be switched between different furnace bodies.

2. The cover moving rotary device for a vacuum degassing furnace according to claim 1, characterized by The slewing center assembly includes: The base has a cylindrical cavity inside; A guide sleeve is installed on the base and extends upward along the axial direction of the cylindrical cavity; A rotating column, which slides in conjunction with the inner wall of the guide sleeve, and the upper end of the rotating column is connected to the support frame; The first linear actuator, with its driving end connected to the upper end of the rotary column, is used to drive the rotary column to rise or fall along the inner wall of the guide sleeve.

3. The cover moving rotary device for vacuum degassing furnace according to claim 2, characterized in that, The slewing center assembly also includes a slewing bearing, which is mounted on the base, and the guide sleeve and the first linear drive are mounted on the slewing bearing.

4. The furnace cover moving and rotating device for a vacuum degassing furnace according to claim 3, characterized in that, The guide sleeve has a limiting hole along the radial direction, and a limiting shaft is provided in the limiting hole. The rotary column has a rectangular elongated hole along its axial direction. A roller bearing is sleeved on the inner end of the limiting shaft, and the outer wall of the roller bearing slides in fit with the inner wall of the rectangular elongated hole.

5. The furnace cover moving and rotating device for a vacuum degassing furnace according to claim 2, characterized in that, The slewing center assembly also includes: A lower support base is installed on the upper end of the rotary column, and two lower shaft seats are provided opposite each other on the upper end face of the lower support base; An upper support base is located above the lower support base and is connected to the bearing frame. Two upper shaft seats are provided opposite each other on the lower end face of the upper support base, and the line connecting the two upper shaft seats is perpendicular to the line connecting the two upper shaft seats. A support ring is disposed between the lower support seat and the upper support seat, and the support ring has shaft holes corresponding to the upper shaft seat and the lower shaft seat respectively; Universal joints are respectively inserted into the upper shaft seat and the corresponding shaft hole, and the lower shaft seat and the corresponding shaft hole.

6. The furnace cover moving and rotating device for a vacuum degassing furnace according to claim 2, characterized in that, The upper and lower ends of the guide sleeve are respectively fixed with flanges, and a dustproof ring is installed on the inner side of the flange. The inner side of the dustproof ring abuts against the outer wall of the rotary column.

7. The furnace cover moving and rotating device for a vacuum degassing furnace according to any one of claims 1-6, characterized in that, The slewing drive assembly includes: The traveling frame is slidably engaged with the support frame via a first guide rail slider structure. The second linear actuator is mounted on the traveling frame, and its drive end is connected to the support frame; The drive wheel is installed at the lower end of the walking frame, and its axle is connected to the output shaft of the drive motor; The driven wheel is installed at the lower end of the walking frame. An angle is formed between the axle of the driven wheel and the driving wheel. The rotation of the driving wheel can drive the driven wheel to roll on a circular path centered on the axis of rotation.

8. The furnace cover moving and rotating device for a vacuum degassing furnace according to claim 7, characterized in that, The walking frame is also equipped with a limit switch; and / or, the walking frame is also equipped with a limit baffle.

9. The furnace cover moving and rotating device for a vacuum degassing furnace according to any one of claims 1-6, characterized in that, The moving component includes: Mobile rack; A fixed plate, one side of which is slidably engaged with the movable frame via a second guide rail slider structure, and the other side of which is slidably engaged with the bearing frame via a third guide rail slider structure, wherein the guide rail direction of the second guide rail slider structure is perpendicular to the guide rail direction of the third guide rail slider structure; The third linear actuator is mounted on the support frame, and its driving end is connected to the fixed plate. It is used to drive the fixed plate to move the movable frame along the guide rail direction of the third guide rail slider structure. A fourth linear actuator is mounted on the movable frame, with its driving end connected to the fixed plate, for driving the movable frame to move along the guide rail direction of the second guide rail slider structure.

10. The furnace cover moving and rotating device for a vacuum degassing furnace according to claim 9, characterized in that, The lower end of the movable frame is provided with a connecting lug, which is used for detachable connection with the furnace cover.

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