Annealing furnace carbon sleeve roller replacement device

Abstract

This application discloses a carbon sleeve roller replacement device for an annealing furnace, solving the technical problem of long waiting time required for overhead crane replacement in the prior art. The replacement device includes: a support frame; a lifting assembly, of which at least two are provided, the lifting assembly including a lifting frame and a support roller for supporting the carbon sleeve roller, the support roller being rotatably mounted on the lifting frame, at least two of the support rollers being arranged sequentially along the axial direction of the carbon sleeve roller, the lifting frame being slidably connected to the support frame along the height direction; a driving component, corresponding to the lifting assembly and mounted on the support frame, the driving component acting on the lifting frame to drive the lifting frame to move along the height direction; and a push rod, having a push groove for accommodating the shaft end of the carbon sleeve roller.

Description

Technical Field

[0001] This application belongs to the technical field of annealing furnace carbon roller replacement, specifically relating to an annealing furnace carbon roller replacement device. Background Technology

[0002] The carbon roller is an important structure in a continuous horizontal annealing furnace and needs to be replaced after a period of use.

[0003] In related technologies, the replacement of carbon sleeve rollers in an annealing furnace involves first removing the bearing seats at both ends of the carbon sleeve roller, exposing the shaft end of the carbon sleeve roller. Then, an overhead crane hoists a replacement pipe to the side of the annealing furnace, fixes the shaft end of the carbon sleeve roller inside the replacement pipe, and then the operators work with the overhead crane to pull the carbon sleeve roller out of the annealing furnace. At the same time, a counterweight is installed at the end of the replacement pipe away from the carbon sleeve roller to keep the carbon sleeve roller level during hoisting.

[0004] This method of removing carbon roller sleeves requires the cooperation of an overhead crane. However, the workshop has two continuous annealing units. While removing the carbon roller sleeves, the other continuous annealing furnace also requires an overhead crane. This necessitates coordinating the use of the overhead crane. The overhead crane can only be used to remove the carbon roller sleeves if it does not affect the production of the other continuous annealing furnace. This prolongs the waiting time and affects the efficiency of dismantling and assembly. Summary of the Invention

[0005] To address the current technical problem of low efficiency in removing carbon sleeve rollers, this application provides a carbon sleeve roller replacement device for annealing furnaces.

[0006] This application provides a carbon roller replacement device for an annealing furnace, comprising:

[0007] The support frame is located on the operating side of the annealing furnace;

[0008] The lifting assembly includes at least two components, each comprising a lifting frame and a support roller for supporting the carbon sleeve roller. The support roller is rotatably mounted on the lifting frame, and at least two support rollers are arranged sequentially along the axial direction of the carbon sleeve roller. The lifting frame is slidably connected to the support frame along the height direction.

[0009] A driving component is provided corresponding to the lifting assembly and is installed on the support frame. The driving component acts on the lifting frame to drive the lifting frame to move along the height direction.

[0010] A push rod is disposed on the drive side of the annealing furnace and has a push groove for accommodating the shaft end of the carbon roller.

[0011] In some embodiments, the support frame is provided with threaded holes and limiting holes, the threaded holes, the limiting holes and the driving component are correspondingly arranged, the driving component is a threaded rod, one end of the threaded rod is threaded into the corresponding threaded hole, the middle part is gapped into the corresponding limiting hole, and the other end is pressed against the corresponding lifting frame, and the threaded rod is provided with a handle.

[0012] In some embodiments, the inner wall of the limiting hole is provided with threads that mate with the threaded rod.

[0013] In some embodiments, the thread pitch of the threaded rod is 2 mm.

[0014] In some embodiments, the lifting frame is provided with a sliding groove that extends along the height direction, and the gap of the support frame is located within the sliding groove.

[0015] In some embodiments, the lifting assembly further includes two guide sleeves rotatably mounted on the lifting frame, the two guide sleeves being located at both ends of the axial direction of the idler roller, and the top ends of the guide sleeves extending out of the corresponding idler rollers.

[0016] In some embodiments, the top end of the guide sleeve extends beyond the carbon roller; the axial dimension of the guide sleeve is 190mm to 220mm.

[0017] In some embodiments, the lifting assembly further includes a limiting belt, the two ends of which are connected to the support frame, and the limiting belt, the guide sleeve, and the idler roller together form a guide hole for the carbon sleeve roller to pass through.

[0018] In some embodiments, the idler roller is a rubber idler roller, or the idler roller is covered with a rubber layer; the guide sleeve is a rubber sleeve.

[0019] In some embodiments, two lifting assemblies are provided, and the two lifting assemblies are distributed at intervals along the axial direction of the carbon roller.

[0020] In some embodiments, the support frame includes a first bracket, a second bracket, and a connecting rod, wherein the first bracket and the second bracket are detachably connected by the connecting rod, and the two lifting components are respectively disposed on the first bracket and the second bracket.

[0021] The annealing furnace carbon sleeve roller replacement device provided in the embodiments of this application includes a support frame, a lifting assembly, and a driving component. When disassembling and installing the carbon sleeve roller, the support frame, lifting assembly, and driving component are positioned on the operating side of the annealing furnace, with the support roller perpendicular to the carbon sleeve roller, and the push rod located on the driving side of the annealing furnace.

[0022] During the dismantling of the carbon sleeve roller, the operator holds a push rod and inserts the shaft end of the carbon sleeve roller on the drive side into the push groove. A force is applied to the push rod from the drive side towards the operating side, causing the carbon sleeve roller to move towards the support roller. The front end of the push rod enters the continuous annealing furnace through the furnace roller hole on the drive side until about half of the carbon sleeve roller extends out of the continuous annealing furnace and is supported by the support roller. At this point, the push rod retracts, and the carbon sleeve roller is supported by the support roller. With the rotational inertia of the support roller itself, the carbon sleeve roller is carried out of the continuous annealing furnace, thus completing the dismantling of the carbon sleeve roller.

[0023] When installing the carbon sleeve roller: The carbon sleeve roller is placed on the support roller. The height of the carbon sleeve roller is adjusted by the drive component so that the carbon sleeve roller is coaxial with the furnace roller hole. The carbon sleeve roller is manually pushed, and the support roller rotates so that the carbon sleeve roller is inserted into the furnace roller hole on the operating side. One end of the push rod extends into the annealing furnace from the furnace roller hole on the drive side. After the carbon sleeve roller is about halfway into the annealing furnace, the operator presses down on the end of the carbon sleeve roller away from the drive side and adjusts it up, down, left and right so that the shaft end of the carbon sleeve roller is inserted into the push groove of the push rod. At this time, the carbon sleeve roller is continued to be pushed forward, and the push rod is retracted until both shaft ends of the carbon sleeve roller are outside the continuous annealing furnace.

[0024] As can be seen from the above, the carbon sleeve roller replacement device for annealing furnace provided in this application can realize the disassembly and installation of carbon sleeve rollers without relying on the overhead crane, without considering the coordination of the use of the overhead crane for production and maintenance, and without waiting for the overhead crane to be idle before replacing the carbon sleeve rollers. It can be carried out at any time according to the replacement needs of the carbon sleeve rollers, which is highly efficient. Attached Figure Description

[0025] Figure 1 A top view showing the support frame and lifting assembly of the annealing furnace carbon roller changing device of this application.

[0026] Figure 2 It shows Figure 1 Side view.

[0027] Figure 3 A schematic diagram of the structure of the annealing furnace carbon roller replacement device of this application in conjunction with the annealing furnace is shown.

[0028] Figure 4 A schematic diagram of the working process of the carbon roller replacement device for the annealing furnace of this application is shown.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Support frame, 110-First support, 120-Second support, 130-Connecting rod, 140-Slide rail, 200-Lifting assembly, 210-Lifting frame, 220-Idler roller, 230-Guide sleeve, 300-Drive component, 400-Push rod, 410-Push groove, 600-Annealing furnace, 610-Carbon sleeve roller. Detailed Implementation

[0031] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] This application provides a carbon sleeve roller replacement device for an annealing furnace, which makes the removal and transfer of the carbon sleeve roller faster and more efficient.

[0033] This application is described below with reference to the accompanying drawings and specific embodiments:

[0034] Please see Figures 1 to 3 The annealing furnace 600 carbon roller 610 replacement device includes a support frame 100, a lifting assembly 200, a drive component 300, and a push rod 400.

[0035] The support frame 100 serves as the mounting base for the lifting assembly 200 and the drive assembly, and is also a support structure located on the operating side of the annealing furnace 600.

[0036] The lifting assembly 200 is height-adjustable to accommodate carbon sleeve rollers 610 at different heights, improving the removal efficiency of the carbon sleeve rollers 610. The lifting assembly 200 has at least two, such as three or four, lifting rollers to enhance the support stability of the carbon sleeve rollers 610. The lifting assembly 200 includes a lifting frame 210 and support rollers 220 for supporting the carbon sleeve rollers 610. The support rollers 220 are rotatably mounted on the lifting frame 210. Therefore, when the carbon sleeve rollers 610 are pulled out of the shell of the annealing furnace 600 along their own axial direction, the support rollers 220 rotate under the drive of the carbon sleeve rollers 610, thereby reducing the axial resistance of the carbon sleeve rollers 610 during extraction and insertion into the continuous annealing furnace 600, making operation easier and more convenient for workers. At least two support rollers 220 are sequentially distributed along the axial direction of the carbon sleeve rollers 610, thereby improving the stability of the support for the carbon sleeve rollers 610. The lifting frame 210 is slidably connected to the support frame 100 along the height direction, thereby realizing the height adjustment of the lifting frame 210 to adapt to the replacement of carbon rollers 610 at different heights of the annealing furnace 600.

[0037] The drive component 300 is used to drive the lifting assembly 200 to lift. The number of drive components 300 and lifting assemblies 200 is the same, and they are installed on the support frame 100. The drive component 300 acts on the lifting frame 210, driving the lifting frame 210 to move along the height direction, thereby driving the idler roller 220 to be adjustable in the height direction.

[0038] The push rod 400 is located on the drive side of the annealing furnace 600 and has a push groove 410 for accommodating the shaft end of the carbon sleeve roller 610. In this way, when the carbon sleeve roller 610 is halfway inside the annealing furnace 600 or generally outside the annealing furnace 600, the push rod 400 can provide support for the drive side shaft end of the carbon sleeve roller 610.

[0039] The annealing furnace 600 carbon sleeve roller 610 replacement device provided in this application has the support frame 100, lifting component 200 and driving component 300 placed on the operating side of the annealing furnace 600 when disassembling and installing the carbon sleeve roller 610, and the support roller 220 is perpendicular to the carbon sleeve roller 610, and the push rod 400 is located on the driving side of the annealing furnace 600. During the dismantling of the carbon sleeve roller 610: First, remove the bearing seats at both ends of the carbon sleeve roller 610, exposing the two shaft ends of the carbon sleeve roller 610. The operator holds the push rod 400 and extends the shaft end of the carbon sleeve roller 610 on the drive side into the push groove 410. Apply a force from the drive side to the operating side to the push rod 400, and the carbon sleeve roller 610 will move towards the support roller 220. The front end of the push rod 400 enters the continuous annealing furnace 600 through the furnace roller hole on the drive side until about half of the carbon sleeve roller 610 extends out of the continuous annealing furnace 600 and is supported by the support roller 220. At this time, the push rod 400 retracts, the carbon sleeve roller 610 is supported by the support roller 220, and with the rotational inertia of the support roller 220 itself, the carbon sleeve roller 610 is brought out of the continuous annealing furnace 600, thus realizing the dismantling of the carbon sleeve roller 610.

[0040] When installing the carbon sleeve roller 610: The carbon sleeve roller 610 is placed on the support roller 220. The height of the carbon sleeve roller 610 is adjusted by the drive component 300 so that the carbon sleeve roller 610 is coaxial with the furnace roller hole. The carbon sleeve roller 610 is manually pushed, and the support roller 220 rotates so that the carbon sleeve roller 610 is inserted into the furnace roller hole on the operating side. One end of the push rod 400 extends into the annealing furnace 600 from the furnace roller hole on the drive side. After about half of the carbon sleeve roller 610 has entered the annealing furnace 600, the operator presses down on the end of the carbon sleeve roller 610 away from the drive side and adjusts it up, down, left and right so that the shaft end of the carbon sleeve roller 610 is inserted into the push groove 410 of the push rod 400. At this time, the carbon sleeve roller 610 is continued to be pushed forward, and the push rod 400 is retracted until both shaft ends of the carbon sleeve roller 610 are outside the continuous annealing furnace 600.

[0041] In some embodiments, the idler roller 220 is a rubber idler roller, such as a neoprene rubber roller. The soft material can effectively protect the surface of the carbon sleeve roller 610 from scratches and abrasions when supporting the carbon sleeve roller 610. In other embodiments, the idler roller 220 is covered with a rubber layer, which can also effectively protect the surface of the carbon sleeve roller 610 from scratches and abrasions.

[0042] In some embodiments, the support frame 100 is provided with a threaded hole and a limiting hole, and the threaded hole, the limiting hole and the driving member 300 are correspondingly arranged. The driving member 300 is a threaded rod, one end of which is threaded into the corresponding threaded hole, the middle part is gapped in the corresponding limiting hole, and the other end abuts against the corresponding lifting frame 210. A handle is provided on the outside of the threaded rod. By rotating the handle, the threaded rod rotates, causing the threaded rod and the support frame 100 to move relative to each other in the height direction. The other end of the threaded rod, that is, the top end, rises or falls, thereby causing the lifting frame 210 to drive the idler roller 220 to rise or fall.

[0043] Due to the installation height deviation of the carbon sleeve rollers 610 in the annealing furnace 600, different carbon sleeve rollers 610 have different heights. The threaded rod is set to adjust the height of the support roller 220, which can support carbon sleeve rollers 610 of different heights and realize the removal of carbon sleeve rollers 610 of different heights. At the same time, the threaded rod can realize the continuous adjustment of the lifting frame 210 and also has a certain self-locking function, so that the threaded rod can be maintained at the required height.

[0044] In other embodiments, a plurality of first pin holes arranged sequentially along the height direction can be provided on the lifting frame 210, and the support frame 100 is provided with second pin holes. The height adjustment of the lifting frame 210 can also be achieved by extending a pin shaft into the second pin hole and any of the first pin holes.

[0045] The specifications of the threaded rod can be selected as needed, such as M36×300mm, with an effective adjustment stroke of 300mm and a pitch of 2mm. This ensures that the positional deviation of the carbon sleeve roller 610 during the replacement operation is accurately adjusted during the extraction and reinstallation process, and that there is no interference or collision with the furnace roller hole of the continuous annealing furnace 600 during the extraction and reinstallation of the roller table.

[0046] In some embodiments, the inner wall of the limiting hole is provided with a thread that mates with the threaded rod. In other embodiments, the limiting hole is a smooth hole, which can also limit the threaded rod and improve the stability of the threaded rod during its rotation.

[0047] In some embodiments, please refer to Figure 2The lifting assembly 200 also includes two guide sleeves 230 rotatably mounted on the lifting frame 210. The two guide sleeves 230 are located at both ends of the axial direction of the idler roller 220, and the top of the guide sleeves 230 extends out of the corresponding idler roller 220. In this way, the two guide sleeves 230 and the idler roller 220 form a limiting groove, so that the carbon sleeve roller 610 will not fall off the idler roller 220 and injure the operator during the process of being pulled out and inserted from the annealing furnace 600, thus improving safety. In some embodiments, the idler roller 220 includes a first guide section, a support section, and a second guide section arranged sequentially along the axial direction. The radial dimension of the first guide section increases sequentially in the direction away from the support section, and the radial dimension of the second guide section increases sequentially in the direction away from the support section. The support section is a straight section, that is, the idler roller 220 is set as a groove shape, which limits the carbon sleeve roller 610 and can also improve the stability of the carbon sleeve roller 610 during the process of being pulled out and inserted from the annealing furnace 600, thus improving safety.

[0048] In some embodiments, the top end of the guide sleeve 230 extends beyond the carbon roller 610, providing enhanced safety. Generally, the diameter of the carbon roller 610 is 180mm, and the axial dimension of the guide sleeve 230 can be 190mm to 220mm, ensuring that the top end of the guide sleeve 230 extends beyond the carbon roller 610 without being excessively long, thus reducing cost.

[0049] In some embodiments, the guide sleeve 230 may include a support tube and a protective sleeve fitted over the support tube. The support tube may be made of steel, which has high strength and a size of φ25*200mm. The protective sleeve may be a rubber hose sheath. In other embodiments, the guide sleeve 230 is a rubber sleeve with a certain strength. The outer peripheral surface of the guide sleeve 230 is relatively soft, which can protect the roller surface of the carbon roller 610 from damage and ensure that the roller surface installation quality meets the standards.

[0050] In some embodiments, the lifting assembly 200 may further include a limiting band (not shown in the figure), with both ends of the limiting band connected to the support frame 100. The limiting band, guide sleeve 230, and idler roller 220 together form a guide hole for the carbon sleeve roller 610 to pass through. During the assembly and disassembly of the carbon sleeve roller 610, there is a situation where it relies on the idler roller 220 closest to the annealing furnace 600 and the furnace roller hole wall on the operating side for support. The idler roller 220 is close to the furnace roller hole on the operating side, while the axial dimension of the carbon sleeve roller 610 is large. At this time, the carbon sleeve roller 610 is very easy to tilt. Setting a limiting band can press down the carbon sleeve roller 610, reduce manpower, and improve the stability of the carbon sleeve roller 610 during the process of being pulled out or inserted into the annealing furnace 600.

[0051] In some embodiments, please refer to Figure 1 There are two lifting components 200. The two lifting components 200 can improve the support stability of the carbon roller 610 and are low in cost.

[0052] In some embodiments, the lifting frame 210 may be provided with two sliding grooves that extend along the height direction, with the openings of the two sliding grooves facing opposite directions. The support frame 100 is provided with the same number of slide rails 140 as the sliding grooves, and the gap between the slide rails 140 is located within the sliding grooves. Since the sliding grooves extend along the height direction and the gap between the slide rails 140 is located within the sliding grooves, when the lifting frame 210 has a tendency to tilt, the bottoms of the two sliding grooves can respectively abut against the slide rails 140, limiting the lifting frame 210 from continuing to tilt. In other words, the two sliding grooves and the threaded rod together ensure the stable lifting of the lifting component.

[0053] In some embodiments, please refer to Figure 3 The support frame 100 includes a first bracket 110, a second bracket 120, and a connecting rod 130. The first bracket 110 and the second bracket 120 are connected by the connecting rod 130. Two lifting components 200 are respectively disposed on the first bracket 110 and the second bracket 120. Both the first bracket 110 and the second bracket 120 are provided with slide rails 140, which are located in the slide grooves of the corresponding lifting frame 210. In some embodiments, the connecting rod 130 is detachably connected to the first bracket 110 and the second bracket 120. After the carbon roller 610 is replaced, the connecting rod 130 can be disassembled, and the first bracket 110 and the second bracket 120 can be stored separately, occupying little space.

[0054] Taking two idler rollers 220 as an example, the usage process of the carbon roller 610 replacement device for the annealing furnace 600 provided in this application is as follows:

[0055] The support frame 100, lifting assembly 200 and drive unit 300 are placed on the operating side of the annealing furnace 600, and the support roller 220 is perpendicular to the carbon sleeve roller 610. The push rod 400 is located on the drive side of the annealing furnace 600.

[0056] Disassembly of carbon roller 610: First, remove the bearing seats at both ends of carbon roller 610. The two shaft ends of carbon roller 610 will be exposed. Please refer to [link / reference]. Figure 3 The operator holds the push rod 400, causing the shaft end of the carbon sleeve roller 610 on the drive side to extend into the push groove 410. The operator applies a force to the push rod 400 from the drive side towards the operating side, causing the carbon sleeve roller 610 to move towards the support roller 220. The front end of the push rod 400 enters the continuous annealing furnace 600 through the furnace roller hole on the drive side, until approximately half of the carbon sleeve roller 610 extends out of the continuous annealing furnace 600 from the operating side (see...). Figure 4 The carbon sleeve roller 610 is supported by the idler roller 220 and then pushed back by the push rod 400. The carbon sleeve roller 610 is supported by the idler roller 220 and restricted from tilting upward by the limit belt. With the rotational inertia of the idler roller 220 itself, the carbon sleeve roller 610 is brought out to the outside of the continuous annealing furnace 600, thus realizing the disassembly of the carbon sleeve roller 610.

[0057] Installing the carbon sleeve roller 610: The carbon sleeve roller 610 is placed on two support rollers 220. The height of the carbon sleeve roller 610 is adjusted by the drive component 300 so that the carbon sleeve roller 610 is coaxial with the furnace roller hole. The carbon sleeve roller 610 is manually pushed, and the support rollers 220 rotate, so that the carbon sleeve roller 610 is inserted into the furnace roller hole on the operating side. One end of the push rod 400 with a push groove 410 extends into the annealing furnace 600 from the furnace roller hole on the drive side. After the carbon sleeve roller 610 is about halfway into the annealing furnace 600, the operator presses down on the end of the carbon sleeve roller 610 away from the drive side and adjusts it up, down, left, and right so that the shaft end of the carbon sleeve roller 610 is inserted into the push groove 410 of the push rod 400 (see...). Figure 4 At this point, the carbon roller 610 continues to advance, and the push rod 400 retracts until both ends of the carbon roller 610 are outside the continuous annealing furnace 600.

[0058] The annealing furnace 600 carbon roller 610 replacement device provided in this application has at least the following advantages:

[0059] (1) To meet the replacement requirements of carbon sleeve roller 610 of the soaking furnace of the continuous horizontal annealing unit in a cold state, avoid the safety risk of inadequate communication and confirmation between the crane and personnel during the replacement of the original carbon sleeve roller 610, and solve the problem of difficulty in coordinating and balancing the production and maintenance of the two annealing units in the same span and the use of the crane for production and maintenance.

[0060] (2) During the process of the carbon sleeve roller 610 being pulled out or pushed into the continuous annealing furnace 600, it is supported by the rotatable support roller 220, which reduces resistance and facilitates manual operation by the operators.

[0061] (3) Set the threaded rod to adjust the height of the idler roller 220 to meet the strength and height alignment requirements during the removal and reinstallation of the carbon sleeve roller 610.

[0062] (4) Set a guide sleeve 230 to limit the left and right offset of the carbon sleeve roller 610 during the support process of the support roller 220, so as to ensure that the carbon sleeve roller 610 is relatively fixed in position during the process of being pulled out or inserted from the furnace chamber of the continuous annealing furnace 600, and does not interfere or rub against the furnace roller hole on the furnace shell of the continuous annealing furnace 600.

[0063] (5) The support frame 100 is set as a split structure, which makes it easier to move and switch work points.

[0064] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 includes the first feature 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.

[0065] 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", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0066] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0067] Furthermore, the use of terms such as "first" and "second" in this application 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, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0068] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A carbon sleeve roller replacement device for an annealing furnace, characterized in that, include: The support frame is located on the operating side of the annealing furnace; The lifting assembly includes at least two components, each comprising a lifting frame and a support roller for supporting the carbon sleeve roller. The support roller is rotatably mounted on the lifting frame, and at least two support rollers are arranged sequentially along the axial direction of the carbon sleeve roller. The lifting frame is slidably connected to the support frame along the height direction. A driving component is provided corresponding to the lifting assembly and is installed on the support frame. The driving component acts on the lifting frame to drive the lifting frame to move along the height direction. A push rod is disposed on the drive side of the annealing furnace and has a push groove for accommodating the shaft end of the carbon roller.

2. The annealing furnace carbon roller replacement device according to claim 1, characterized in that, The support frame is provided with threaded holes and limiting holes. The threaded holes, the limiting holes and the driving component are correspondingly arranged. The driving component is a threaded rod. One end of the threaded rod is threaded into the corresponding threaded hole, the middle gap is set in the corresponding limiting hole, and the other end is pressed against the corresponding lifting frame. A handle is provided on the outside of the threaded rod.

3. The annealing furnace carbon roller replacement device according to claim 2, characterized in that, The inner wall of the limiting hole is provided with a thread that mates with the threaded rod, and the thread pitch of the threaded rod is 2mm.

4. The annealing furnace carbon roller replacement device according to claim 2, characterized in that, The lifting frame is provided with two sliding grooves that run through the height direction, and the openings of the two sliding grooves face opposite directions. The support frame is provided with the same number of slide rails as the sliding grooves, and the gap between the slide rails is provided in the corresponding sliding grooves.

5. The annealing furnace carbon roller replacement device according to any one of claims 1-4, characterized in that, The lifting assembly also includes two guide sleeves rotatably mounted on the lifting frame. The two guide sleeves are located at both ends of the axial direction of the idler roller, and the top end of the guide sleeve extends out of the corresponding idler roller.

6. The annealing furnace carbon roller replacement device according to claim 5, characterized in that, The top end of the guide sleeve extends out of the carbon roller; the axial dimension of the guide sleeve is 190mm to 220mm.

7. The annealing furnace carbon roller replacement device according to claim 5, characterized in that, The lifting assembly also includes a limiting belt, the two ends of which are connected to the support frame. The limiting belt, the guide sleeve, and the idler roller together form a guide hole for the carbon sleeve roller to pass through.

8. The annealing furnace carbon roller replacement device according to claim 5, characterized in that, The idler roller is a rubber idler roller, or the idler roller is covered with a rubber layer; the guide sleeve is a rubber sleeve.

9. The annealing furnace carbon roller replacement device according to any one of claims 1-4, characterized in that, Two lifting components are provided, and the two lifting components are distributed at intervals along the axial direction of the carbon roller.

10. The annealing furnace carbon roller replacement device according to claim 9, characterized in that, The support frame includes a first bracket, a second bracket, and a connecting rod. The first bracket and the second bracket are detachably connected by the connecting rod, and the two lifting components are respectively disposed on the first bracket and the second bracket.

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