A guide roller device

Abstract

The utility model provides a guide roller device relates to mechanical processing equipment technical field, be applied to vertical roll mill, and vertical roll mill includes: rack, set up in the window of rack and along the symmetry setting of vertical roll mill's rolling center line two sets of vertical roll device, guide roller device is slidably arranged between two sets of vertical roll device, and the sliding direction of guide roller device is perpendicular to the direction of rolling center line, guide roller device includes guide roller support, guide roller and connecting piece, guide roller is supported on guide roller support, and the outer periphery of guide roller is suitable for rolling contact with the rolling piece, be equipped with first connecting hole on the rack, be equipped with the second connecting hole of matching first connecting hole on guide roller support, and the rack and guide roller support are detachably connected through the connecting piece of being arranged in first connecting hole and second connecting hole. This embodiment realizes the bit and positioning through the transverse sliding of guide roller device, need not to be hung into the rack and be hung out of the rack to the guide roller device, is favorable to promoting the roll efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and more specifically, to a guide roller device. Background Technology

[0002] Vertical rolling mills are key equipment in production lines such as hot strip and thick plate rolling. To help steel plates pass smoothly through the mill, guide roller devices (such as guide plates) are usually installed at the center of the corresponding stand window of the vertical rolling mill to improve the stability of the workpiece transmission and the rolling accuracy.

[0003] However, the current design of the lower guide plate device has significant limitations. During roll changing operations in vertical rolling mills, the lower guide plate device must first be disassembled and then lifted out of the mill area by an overhead crane to make room for the roll changing operation. After the roll changing is completed, the lower guide plate device must be lifted back into the mill frame window by an overhead crane for installation and fixation. The entire roll changing process is cumbersome, consuming a lot of manpower and time, and significantly prolonging the total roll changing time, resulting in low roll changing efficiency. Utility Model Content

[0004] The problem this invention addresses is how to improve roller changing efficiency.

[0005] To solve the above problems, this utility model provides a guide roller device applied to a vertical roll mill. The vertical roll mill includes: a frame; two sets of vertical roll devices arranged symmetrically along the rolling center line of the vertical roll mill and disposed within a window of the frame; the guide roller device is slidably disposed between the two sets of vertical roll devices, and the sliding direction of the guide roller device is perpendicular to the rolling center line. The guide roller device includes a guide roller frame, a guide roller, and a connecting member; the guide roller is supported on the guide roller frame, and the outer periphery of the guide roller is adapted to make rolling contact with the workpiece. The frame is provided with a first connecting hole, and the guide roller frame is provided with a second connecting hole that matches the first connecting hole. The frame and the guide roller frame are detachably connected by a connector passing through the first connecting hole and the second connecting hole.

[0006] Optionally, the frame includes a frame body and a frame slide plate that are fixedly connected; the guide roller frame includes a guide roller frame body and a guide roller frame slide plate that are fixedly connected; the frame slide plate and the guide roller frame slide plate are slidably connected, and the installation directions of the frame slide plate and the guide roller frame slide plate are both perpendicular to the rolling center line.

[0007] Optionally, the frame slide plate includes an L-shaped guide rail composed of a first slide rail portion and a second slide rail portion, and the guide roller frame slide plate includes an L-shaped slider composed of a first slider portion and a second slider portion; the inner side of the L-shaped slider is in sliding contact with the outer side of the L-shaped guide rail.

[0008] Optionally, there are two L-shaped guide rails, and the two L-shaped guide rails are symmetrically arranged on both sides of the frame; there are two L-shaped sliders, and the two L-shaped sliders are symmetrically arranged on both sides of the guide roller frame; the two L-shaped sliders are embedded between the two L-shaped guide rails.

[0009] Optionally, the guide roller frame body includes two frames that are fixedly connected to the guide roller frame slide plate and are symmetrically arranged, each frame having a groove; the guide roller includes a guide roller shaft and a guide roller body rotatably sleeved on the guide roller shaft, the two ends of the guide roller shaft being respectively embedded in the grooves of the two frames, and the axial direction of the guide roller shaft being perpendicular to the rolling center line.

[0010] Optionally, the guide roller device further includes a cover plate fixedly connected to the two frames; the cover plate has a window, and at least part of the outer peripheral surface of the guide roller body is located above the top surface of the window.

[0011] Optionally, the two ends of the guide roller shaft include positioning sections with flat surfaces; the cover plate is provided with a pad that fits against the flat surface of the positioning section.

[0012] Optionally, the first connecting hole is provided on the frame slide plate, and the axis of the first connecting hole is located in the same plane as the rolling center line.

[0013] Optionally, the second connecting hole is provided on the guide roller frame slide plate, and the axis of the second connecting hole is located on the central symmetry plane of the two frames.

[0014] Optionally, the vertical roller assembly includes a vertical roller and a linear drive device for driving the vertical roller or driving the vertical roller and the guide roller assembly to slide along the frame slide plate.

[0015] The guide roller device of this invention is slidably disposed between two sets of vertical roller devices, with its sliding direction perpendicular to the rolling centerline. Further, the guide roller device of this invention includes a guide roller frame, a guide roller, and a connecting member. The guide roller is rotatably supported on the guide roller frame, and its outer circumferential surface is adapted to roll contact with the workpiece, thereby providing support and guidance. A first connecting hole is provided on the frame, and a second connecting hole matching the first connecting hole is provided on the guide roller frame. The positions of the first and second connecting holes correspond; when the guide roller device is in the working position, the axial directions of the first and second connecting holes coincide, and the connecting member passes through the first and second connecting holes, realizing a detachable connection between the frame and the guide roller frame.

[0016] In this invention, the frame and guide roller frame are detachably connected via connecting parts passing through the first and second connecting holes, and the sliding direction of the guide roller device is perpendicular to the rolling centerline. Thus, the guide roller device in this invention can be stably fixed in a set position during rolling, providing reliable support and precise guidance for the rolled piece. Furthermore, when roll changing is required, it can be moved and reset simply by sliding along a direction perpendicular to the rolling centerline. This avoids the complex operation of using an overhead crane to lift the guide roller device out of and into the frame window, significantly shortening roll changing time, reducing manpower and equipment investment, and significantly improving roll changing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a vertical roll mill using a guide roller device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the guide roller device and the frame according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the guide roller device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cover plate according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the guide roller structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the roller changing process according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1-Frame; 11-First connecting hole; 12-Frame body; 13-Frame slide plate; 131-First slide rail; 132-Second slide rail; 14-Limiting block; 2-Vertical roller device; 21-Vertical roller; 22-Linear drive device; 3-Guide roller device; 31-Guide roller frame; 311-Guide roller frame body; 3111-Frame; 3112-Groove; 312-Guide roller frame slide plate; 3121-First slider; 3122-Second slider; 32-Guide roller; 321-Guide roller shaft; 322-Guide roller body; 33-Connector; 34-Second connecting hole; 35-Cover plate; 351-Cover plate body; 352-Pad plate. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0020] In the attached figures, the X-axis represents left and right positions, with the positive direction of the X-axis representing the right side and the negative direction representing the left side; the Y-axis represents front and back positions, with the positive direction of the Y-axis representing the front and the negative direction representing the back; the Z-axis represents up and down positions, with the positive direction of the Z-axis representing up and the negative direction representing down. It should be noted that the aforementioned representations of the X, Y, and Z axes are merely for the convenience of describing this utility model 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 limiting this utility model.

[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] like Figure 1 As shown, this utility model provides a guide roller device applied to a vertical roll mill. The vertical roll mill includes: a frame 1 and two sets of vertical roll devices 2 arranged symmetrically along the rolling center line of the vertical roll mill and set inside the window of the frame 1; the guide roller device 3 is slidably arranged between the two sets of vertical roll devices 2, and the sliding direction of the guide roller device 3 is perpendicular to the rolling center line. The guide roller device 3 includes a guide roller frame 31, a guide roller 32, and a connecting member 33; the guide roller 32 is supported on the guide roller frame 31, and the outer periphery of the guide roller 32 is adapted to make rolling contact with the workpiece; The frame 1 is provided with a first connecting hole 11, and the guide roller frame 31 is provided with a second connecting hole 34 that matches the first connecting hole 11. The frame 1 and the guide roller frame 31 are detachably connected by the connecting member 33 passing through the first connecting hole 11 and the second connecting hole 34.

[0024] Specifically, this embodiment provides a guide roll device applied to a vertical roll mill. Vertical roll mills are used for side guiding, centering, or lightly pressing and shaping of rolled products (such as strips or slabs), and are suitable for vertical roll rolling processes in hot continuous rolling or heavy plate production lines. In this embodiment, the vertical roll mill includes a frame 1 and two sets of vertical roll devices 2. The frame 1 can be a rigid structure integrally cast or welded, and typically has a window structure to accommodate and support internal moving parts. In this embodiment, the two sets of vertical roll devices 2 are symmetrically arranged within the window of the frame 1, along the rolling centerline of the vertical roll mill (i.e.,...). Figure 1 In this embodiment, the vertical roll device 2 may include a vertical roll, a vertical roll bearing housing (not shown in the figure), a drive mechanism (such as a linear drive device), etc. The vertical roll can be rotatably supported on the bearing housing by the bearing and driven by the drive mechanism to rotate around its own axis to achieve rolling contact and processing of the side of the workpiece.

[0025] In this embodiment, the guide roller device 3 is slidably disposed between the two sets of vertical roller devices 2, and its sliding direction is perpendicular to the rolling centerline (i.e., the guide roller device 3 can slide along...). Figure 1 (Sliding along the X-axis). Further, in this embodiment, the guide roller device 3 includes a guide roller frame 31, a guide roller 32, and a connecting member 33. The guide roller 32 is rotatably supported on the guide roller frame 31 (e.g., via a rotating shaft), and its outer circumferential surface is adapted to roll contact with the workpiece, thereby providing support and guidance. A first connecting hole 11 is provided on the frame 1, and a second connecting hole 34 matching the first connecting hole 11 is provided on the guide roller frame 31. The positions of the first connecting hole 11 and the second connecting hole 34 correspond. When the guide roller device 3 is in the working position (e.g., when the symmetrical center line of the guide roller device 3 is in the same plane as the rolling center line), the axial directions of the first connecting hole 11 and the second connecting hole 34 coincide, and the connecting member 33 passes through the first connecting hole 11 and the second connecting hole 34, realizing a detachable connection between the frame 1 and the guide roller frame 31. In this embodiment, the connecting member 33 can be a bolt, a pin, or other detachable fastening element.

[0026] It should be understood that, in this embodiment, the frame 1 and the guide roller frame 31 are detachably connected by the connecting member 33 passing through the first connecting hole 11 and the second connecting hole 34, and the sliding direction of the guide roller device 3 is perpendicular to the rolling center line. During the actual roller replacement operation, the connecting member 33 is first pulled out from the first connecting hole 11 and the second connecting hole 34 to release the guide roller device 3 from its fixed state. Then, the guide roller device 3 is slid as a whole away from the vertical roller device 2 to be replaced along a direction perpendicular to the rolling center line (e.g., if the left vertical roller device 2 needs to be replaced, the guide roller device 3 can be slid to the right), thereby freeing up working space for the disassembly and installation of the vertical roller device 2 to be replaced. After the vertical roller device 2 is replaced, the guide roller device 3 can be slid back to its original position in the same direction, so that the second connecting hole 34 is realigned with the first connecting hole 11 on the frame 1. Then, the connecting member 33 is inserted into the two holes to achieve the repositioning and fixing of the guide roller device 3.

[0027] Thus, through the above-described structural design of this embodiment, the guide roller device 3 can be stably fixed in the set position during the rolling process, providing reliable support and precise guidance for the rolled workpiece. When roll changing is required, it can be moved and reset by sliding laterally (i.e., in the direction perpendicular to the rolling center line), avoiding the complex operation of using an overhead crane to lift the guide roller device 3 out of and into the window of the frame 1, greatly shortening the roll changing time, reducing manpower and equipment input, and significantly improving roll changing efficiency.

[0028] Optionally, in this embodiment, the vertical roll mill also includes a main drive system, a cooling and lubrication system, a guiding device, and a detection and control system. The main drive system drives the vertical roll assembly, the cooling and lubrication system cools the vertical roll assembly, and the guiding device is mounted on the frame for lateral centering of the rolled workpiece.

[0029] Optionally, such as Figure 2 As shown, the frame 1 includes a frame body 12 and a frame slide plate 13 that are fixedly connected; the guide roller frame 31 includes a guide roller frame body 311 and a guide roller frame slide plate 312 that are fixedly connected; the frame slide plate 13 and the guide roller frame slide plate 312 are slidably connected, and the extension directions of the frame slide plate 13 and the guide roller frame slide plate 312 are both perpendicular to the rolling center line.

[0030] Specifically, in this embodiment, the frame slide plate 13 can be fixed to the frame body 12 by welding, bolting, or other methods. Correspondingly, the guide roller frame slide plate 312 can also be fixed to the guide roller frame body 311 by welding, bolting, or other methods. The frame slide plate 13 and the guide roller frame slide plate 312 are slidably connected to form a stable guiding fit structure. For example, in this embodiment, the contact surfaces of the frame slide plate 13 and the guide roller frame slide plate 312 can be flat or have a concave-convex guiding structure, which can be made of wear-resistant material or have additional lubrication grooves to reduce frictional resistance. In actual assembly, the frame slide plate 13 can be a guide rail welded or bolted to the frame body 12, and the guide roller frame slide plate 312 can be a slide plate or slider structure embedded in the guide rail, ensuring that the guide roller device 3 can slide left and right in a direction perpendicular to the rolling center line.

[0031] In this embodiment, the frame slide plate 13 and the guide roller frame slide plate 312 are slidably connected, and their extension direction is perpendicular to the rolling center line, providing a stable and directional motion trajectory for the lateral movement of the guide roller device 3. When replacing the vertical roller device 2, after pulling out the connector 33 that passes through the first connecting hole 11 and the second connecting hole 34, the guide roller frame body 311 can be pushed, causing the second sliding part 312 to slide along the extension direction of the frame slide plate 13 (i.e., laterally, and also perpendicular to the rolling center line), so that the entire guide roller device 3 is away from the side of the vertical roller device 2 to be replaced. After the roller replacement is completed, the guide roller frame 31 is pushed in the opposite direction to reset it to the working position, the first connecting hole 11 and the second connecting hole 34 are realigned, and the connector 33 is inserted to complete the fixation.

[0032] Optionally, such as Figure 2 As shown, the frame slide plate 13 includes an L-shaped guide rail composed of a first slide rail portion 131 and a second slide rail portion 132, and the guide roller frame slide plate 312 includes an L-shaped slider composed of a first slider portion 3121 and a second slider portion 3122; the inner side of the L-shaped slider is in sliding contact with the outer side of the L-shaped guide rail.

[0033] Specifically, in this embodiment, the frame slide plate 13 includes an L-shaped guide rail composed of a first slide rail portion 131 and a second slide rail portion 132. It should be understood that in this embodiment, the first slide rail portion 131 and the second slide rail portion 132 can be two independent components fixedly connected to form an L-shaped structure, or they can be an L-shaped structure integrally molded. Both are integrally fixedly installed on the frame body 12, extending in a direction perpendicular to the rolling center line. The guide roller frame slide plate 312 includes an L-shaped slider composed of a first slider portion 3121 and a second slider portion 3122. The first slider portion 3121 and the second slider portion 3122 form an L-shaped structure matching the L-shaped guide rail and are fixedly installed on the guide roller frame body 311. It should be understood that in this embodiment, the first slider portion 3121 and the second slider portion 3122 can be two independent components fixedly connected to form an L-shaped structure, or they can be an L-shaped structure integrally molded.

[0034] Furthermore, in this embodiment, the inner side of the L-shaped slider makes sliding contact with the outer side of the L-shaped guide rail. Specifically, the inner side of the first slider portion 3121 slides in contact with the outer side of the first guide rail portion 131, and the inner side of the second slider portion 3122 slides in contact with the outer side of the second guide rail portion 132, forming a double-sided guiding structure. This sliding contact allows the guide roller frame 31 to move smoothly along the extension direction of the frame slide plate 13, while restricting its rotational freedom around the X-axis (i.e., transverse, perpendicular to the rolling center line) and the Y-axis (i.e., parallel to the rolling center line), thus achieving stable and reliable guidance.

[0035] Optionally, such as Figure 2 As shown, there are two L-shaped guide rails, which are symmetrically arranged on both sides of the frame 1; there are two L-shaped sliders, which are symmetrically arranged on both sides of the guide roller frame 31; and the two L-shaped sliders are embedded between the two L-shaped guide rails.

[0036] Specifically, in this embodiment, there are two L-shaped guide rails, which are symmetrically arranged on both sides of the frame 1 and fixedly connected to the frame body 12, extending in a direction perpendicular to the rolling center line. Each L-shaped guide rail consists of a first slide rail portion 131 and a second slide rail portion 132, forming an L-shaped outer contour structure. There are also two L-shaped sliders, which are symmetrically arranged on both sides of the guide roller frame 31 and fixedly connected to the guide roller frame body 311. Each L-shaped slider consists of a first slider portion 3121 and a second slider portion 3122, forming an L-shaped inner contour structure that matches the L-shaped guide rail.

[0037] Furthermore, in this embodiment, two L-shaped sliders are embedded between two L-shaped guide rails, so that the inner surface of each L-shaped slider slides in contact with the outer surface of the corresponding L-shaped guide rail. That is, one L-shaped slider covers the outer surface of one L-shaped guide rail, forming an independent sliding pair. The two sliding pairs are symmetrically arranged in a direction perpendicular to the rolling center, jointly bearing the load of the guide roller frame 31 and the guide roller 32, and guiding them to slide smoothly in the transverse direction.

[0038] In this embodiment, the two L-shaped sliders and the two L-shaped guide rails form a symmetrical sliding pair, ensuring that the guide roller frame 31 experiences consistent forces on both sides during lateral movement, avoiding eccentric movement or torsion, thereby ensuring the stability of the guide roller device 3. Simultaneously, in this embodiment, the L-shaped guide rails and corresponding L-shaped sliders are arranged symmetrically on both sides, effectively distributing the weight of the guide roller device 3 and the dynamic load during the rolling process, which helps to enhance the overall support strength of the guide roller device 3.

[0039] Optionally, such as Figure 3As shown, the guide roller frame body 311 includes two frames 3111 that are fixedly connected to the guide roller frame slide plate 312 and symmetrically arranged. Each frame 3111 is provided with a groove 3112. The guide roller 32 includes a guide roller shaft 321 and a guide roller body 322 that is rotatably sleeved on the guide roller shaft 321. The two ends of the guide roller shaft 321 are respectively embedded in the grooves 3112 of the two frames 3111. The axial direction of the guide roller shaft 321 is perpendicular to the rolling center line.

[0040] Specifically, in this embodiment, the guide roller frame body 311 includes two frames 3111, which are symmetrically arranged and fixedly connected to the guide roller frame slide plate 312 (e.g., by bolts or other fasteners). Each frame 3111 has a groove 3112, the groove 3112 opening upwards or inwards, for positioning and installing the guide roller shaft 321. In this embodiment, the guide roller 32 includes a guide roller shaft 321 and a guide roller body 322 rotatably sleeved on the guide roller shaft 321. For example, the guide roller body 322 can be supported on the guide roller shaft 321 by bearings or bushings, allowing it to rotate around the guide roller shaft 321.

[0041] Furthermore, in this embodiment, both ends of the guide roller shaft 321 are respectively embedded in the grooves 3112 of the two frames 3111, forming a detachable support structure. The shape of the grooves 3112 can match the shape of the ends of the guide roller shaft 321; for example, it can be a semi-circular, U-shaped, or rectangular groove, which can restrict the vertical and lateral displacement of the guide roller shaft 321. Assuming the grooves 3112 are rectangular grooves, the two ends of the guide roller shaft 321 can also be correspondingly machined into rectangular structures. In actual assembly, the two ends of the guide roller shaft 321 can be first assembled into the grooves 3112 of the two frames 3111, and then the two frames 3111 are respectively fixedly connected to the guide roller frame slide plate 312. The guide roller body 322 is located in the middle of the guide roller shaft 321 and is situated within the U-shaped space between the two frames 3111.

[0042] In this embodiment, the two ends of the guide roller shaft 321 are respectively embedded in the grooves 3112 of the two frames 3111, so that the guide roller shaft 321 and the guide roller body 322 rotatably sleeved on the guide roller shaft 321 are mounted between the two frames 3111, providing space for the rotation of the guide roller body 322. The axial direction of the guide roller shaft 321 is perpendicular to the rolling center line, that is, the guide roller shaft 321 is arranged in the transverse direction, so that the rotation plane of the guide roller body 322 is parallel to the rolling direction, so that the outer periphery of the guide roller body 322 rolls into contact with the side or bottom surface of the workpiece running along the rolling center line, thereby realizing the guiding and supporting functions.

[0043] Optionally, such as Figure 3As shown, the guide roller device 3 also includes a cover plate 35 fixedly connected to the two frames 3111; the cover plate 35 has a window 351, and the outer peripheral surface of the guide roller body 322 is at least partially located above the top surface of the window 351.

[0044] Specifically, in this embodiment, the guide roller device 3 further includes a cover plate 35, which is fixedly connected to two frames 3111 and located above or outside the guide roller body 322, forming a partial covering structure for the guide roller assembly. A window 351 is provided on the cover plate 35, the position of which corresponds to the installation area of ​​the guide roller body 322. After the guide roller shaft 321 is installed in the groove 3112 of the frame 3111 and the guide roller body 322 is sleeved on the guide roller shaft 321, along the Z-axis direction, at least part of the outer circumferential surface of the guide roller body 322 is located above the top surface of the window 351 (i.e., at least part of the guide roller body 322 is exposed to the outside through the window 351), suitable for contacting the side or bottom surface of the rolled piece to achieve a rolling guiding function.

[0045] In this embodiment, the shape and size of the window 351 can be set according to the outer diameter and contact area of ​​the guide roller body 322, and can be rectangular, arc-shaped, or a combination of contours. In this embodiment, the cover plate 35 is fixedly connected to the frame 3111, and the structure of the window 351 set on it determines the exposed range of the guide roller body 322. While meeting the contact requirements of the rolled workpiece, it is beneficial to shield the non-working area, prevent foreign objects from getting stuck between the guide roller body 322 and the guide roller shaft 321, which would cause increased rotational resistance or jamming. This helps to ensure that the guide roller 32 is always in a good rotational state and improves the guiding stability.

[0046] Optionally, such as Figure 4 As shown, in this embodiment, a detachable connecting guide plate is also provided on the side of the cover plate 35 that contacts the rolled piece. The guide plate has a window 351 that matches the window 351 of the cover plate 35. The guide plate can be made of wear-resistant material (such as wear-resistant alloy steel). When the guide plate is worn or damaged due to long-term use, it can be disassembled and replaced separately without replacing the entire cover plate 35 or guide roller frame 31, which helps to reduce maintenance costs and downtime.

[0047] Optionally, such as Figure 5 As shown, at least one end of the guide roller shaft 321 includes a positioning section with a flat surface; the cover plate 35 has a protrusion 352 that abuts against the flat surface of the positioning section.

[0048] Specifically, in this embodiment, at least one end of the guide roller shaft 321 includes a positioning section, which has a planar structure, which can be a single plane or a symmetrical double plane, extending axially. This plane is located on the outer circumferential surface of the end of the guide roller shaft 321 and is used to provide a circumferential positioning reference.

[0049] Furthermore, in this embodiment, the cover plate 35 is provided with a protrusion 352, which extends towards the guide roller shaft 321 and corresponds to the positioning section of the guide roller shaft 321. When the guide roller shaft 321 is installed in place, the protrusion 352 abuts against the plane on the positioning section, forming a mechanical limit. In this embodiment, the abutment structure between the protrusion 352 and the positioning section can also be a plane. The protrusion 352 can be set on the inner side of the cover plate 35 (i.e., the side away from the rolled piece) by welding, casting, or machining. In this embodiment, the guide roller shaft 321 includes a positioning section with a plane, and the cover plate 35 is provided with a protrusion 352. The protrusion 352 abuts against the plane of the positioning section, which helps to prevent the guide roller shaft 321 from rotating during installation or operation, ensuring its stable support state in the groove 3112, and avoiding wear or loosening caused by rotation. Optionally, in this embodiment, the number of guide rollers 32 is at least one, and each guide roller 32 includes a positioning section with a plane at both ends corresponding to the guide roller shaft 321. Accordingly, the number of grooves 3112 on each frame 3111 and the number of protrusions 352 on the cover plate 35 are matched with the number of corresponding positioning sections on the guide roller shaft 321.

[0050] Optionally, such as Figure 2 As shown, the first connecting hole 11 is provided on the frame slide plate 13, and the axis of the first connecting hole 11 is located in the same plane as the rolling center line.

[0051] Optionally, such as Figure 2 As shown, the second connecting hole 34 is provided on the guide roller frame slide plate 312, and the axis of the second connecting hole 34 is located on the central symmetry plane of the two frames 3111.

[0052] Specifically, in this embodiment, the first connecting hole 11 is provided on the frame slide plate 13, and its axial direction is located in the same plane as the rolling center line, and can penetrate through the side wall or top of the frame slide plate 13. The second connecting hole 34 is provided on the guide roller frame slide plate 312, and its axis is located on the central symmetry plane of the two frames 3111, and can penetrate through the side wall of the guide roller frame slide plate 312. As the guide roller device 3 slides laterally on the frame 1, this central symmetry plane coincides with or is parallel to the rolling center line.

[0053] When the guide roller device 3 slides to the working position, the first connecting hole 11 and the second connecting hole 34 are spatially aligned, and their axes are collinear. The connecting piece 33 is inserted longitudinally, passing sequentially through the first connecting hole 11 of the frame slide plate 13 and the second connecting hole 34 of the guide roller frame slide plate 312, realizing the detachable fixation between the frame 1 and the guide roller frame 31. Since the axis of the first connecting hole 11 is located in the same plane as the rolling center line, when the first connecting hole 11 and the second connecting hole 34 are spatially aligned, the axis of the second connecting hole 34 is also located in the same plane as the rolling center line. Furthermore, since the axis of the second connecting hole 34 is located on the central symmetry plane of the two frames 3111, the rolling center line can be considered to coincide with the central symmetry plane of the two frames 3111. This helps to avoid uneven loading or unilateral force on the guide roller body 322 that is in rolling contact with the workpiece, ensuring uniform force on the guide roller body 322, effectively preventing local wear, and thus improving the operational stability of the guide roller device 3.

[0054] Optionally, such as Figure 1 As shown, the vertical roller device 2 includes a vertical roller 21 and a linear drive device 22 for driving the vertical roller 21 or driving the vertical roller 21 and the guide roller device 3 to slide along the frame slide plate 13.

[0055] Specifically, in this embodiment, the vertical roll device 2 includes a vertical roll 21 and a linear drive device 22 for driving the vertical roll 21 to slide along the frame slide plate 13. The vertical roll 21 may include a roll body, a bearing housing, and a sealing assembly, and can rotate as a whole in a direction perpendicular to the rolling centerline. The fixed end of the linear drive device 22 can be mounted on the frame 1, and the output end can be connected to the bearing housing of the vertical roll 21 for pushing or pulling the vertical roll 21 back. In this embodiment, the linear drive device 22 can be a hydraulic cylinder. By controlling the oil inlet and outlet of the hydraulic system, the vertical roll 21 can slide laterally along the extension direction of the frame slide plate 13. When the guide roll device 3 is not relatively fixed to the frame 1 by a connecting member, the linear drive device 22 drives the vertical roll 21 to slide until it contacts the guide roll device 3, after which the vertical roll 21 and the guide roll device 3 can slide along the frame slide plate 13.

[0056] In this embodiment, the frame slide plate 13 not only serves as a sliding guide structure for the guide roller device 3, but also constitutes part of the sliding path of the vertical roller 21. Under the action of the linear drive device 22, the vertical roller 21 slides along the extension direction of the frame slide plate 13, which can realize position adjustment during the rolling process or roll changing operation.

[0057] Optionally, the maximum stroke of the linear drive device 22 is greater than or equal to the shortest distance in the horizontal plane between the axis of the vertical roll 21 and the rolling center line when the linear drive device 22 is in the retracted state.

[0058] Specifically, under normal rolling conditions, the two sets of vertical roll units 2 are located on both sides of the rolling centerline, with their vertical rolls 21 symmetrically distributed along their axes. The linear drive device 22 can be in a retracted state, and the vertical rolls 21 on both sides roll and clamp the edges of the workpiece for processing. When it is necessary to replace one side of the vertical roll unit 2, the linear drive device 22 gradually extends, pushing the vertical roll 21 on that side along the first sliding part 13 towards the center area of ​​the window of the frame 1. This center area is located between the two sets of vertical roll units 2 and is the area where the rolling centerline is located. This space is relatively open, facilitating disassembly and assembly operations for the operators.

[0059] In this embodiment, the maximum stroke of the linear drive device 22 represents the total travel length of its piston rod or output component from the fully retracted state to the fully extended state. The maximum stroke of the linear drive device 22 is designed to be greater than or equal to the shortest distance between the axis of the vertical roll 21 and the rolling centerline in its retracted state. This helps ensure that the vertical roll 21 can be fully pushed to the center area of ​​the window of the frame 1. At this position, the vertical roll 21 is away from the narrow corner area of ​​the original mounting side and enters an area with a larger operating space, providing ample operating space for maintenance operations such as disassembling the bearing housing, replacing the vertical roll, and checking the seals, which helps to further improve the roll changing efficiency.

[0060] Optionally, in this embodiment, the frame 1 is also provided with two limiting blocks 14 symmetrically arranged along the rolling center line to limit the lateral sliding range of the guide roller device 3.

[0061] like Figure 6 As shown, the roll changing process of a vertical rolling mill will now be described using a specific embodiment. Figure 6This is a schematic diagram of the roll changing process in this embodiment. S1 shows the positional relationship of the two vertical roll devices 2 and the guide roll device 3 located between the two vertical roll devices 2 during the rolling operation of the vertical roll mill. Assuming that the vertical roll 21 of the right guide roll device 3 needs to be replaced, the connecting piece 33 passing through the first connecting hole 11 and the second connecting hole 34 can be pulled out first. On this basis, the linear drive device 22 of the right vertical roll device 2 is activated, pushing the vertical roll 21 to move to the left in a direction perpendicular to the rolling center line (i.e., laterally). S2 shows the positional relationship when the linear drive device 22 pushes the right vertical roll to contact the right side of the guide roll device 3. Since the connecting piece 33 has been pulled out at this time, the guide roll frame 31 is released from the frame 1. When the right linear drive device 22 continues to push the vertical roll 21 to the left, it can drive the guide roll device 3 to move to the left synchronously. S3 represents the positional relationship diagram when the linear drive device 22 pushes the right vertical roll 21 and the guide roll device 3 to slide together to the left until the axis of the right vertical roll 21 is on the same plane as the rolling center line (i.e., when the stroke of the linear drive device 22 is equal to the aforementioned shortest distance), and then the linear drive device 22 stops operating. At this time, the right vertical roll 21 is in the center position of the window of the frame 1, with a large operating space, which facilitates the staff to change the vertical roll 21. Optionally, in this embodiment, the distance between the limiting block 14 and the rolling center line can be set to prevent the vertical roll 21 from continuing to slide to the left after it is in the center position of the window of the frame 1.

[0062] After the right-side vertical roller 21 is replaced, the right-side linear drive device 22 retracts, causing the replaced right-side vertical roller 21 to slide to the right until it reaches its working position (e.g., the current stroke of the linear drive device 22 is zero). Based on this, the linear drive device 22 of the left-side vertical roller device 2 pushes the left-side vertical roller 21 to the right, thereby causing the guide roller device 3 to slide to the right until the axes of the first connecting hole 11 and the second connecting hole 34 coincide. Then, the connecting piece 33 is inserted into the first connecting hole 11 and the second connecting hole 34. Simultaneously, the linear drive device 22 of the left-side vertical roller device 2 retracts, causing the left-side vertical roller 21 to slide to the left until it reaches its working position (e.g., the position of the roller when the linear drive device 22 is retracted). In this way, the right-side vertical roller can be quickly replaced.

[0063] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A guide roller device, characterized in that, The invention is applied to a vertical roll mill, which includes: a frame (1) and two sets of vertical roll devices (2) arranged symmetrically along the rolling center line of the vertical roll mill within the window of the frame (1); a guide roll device (3) is slidably arranged between the two sets of vertical roll devices (2), and the sliding direction of the guide roll device (3) is perpendicular to the rolling center line. The guide roller device (3) includes a guide roller frame (31), a guide roller (32) and a connecting member (33); the guide roller (32) is supported on the guide roller frame (31), and the outer periphery of the guide roller (32) is adapted to make rolling contact with the workpiece; The frame (1) is provided with a first connecting hole (11), and the guide roller frame (31) is provided with a second connecting hole (34) that matches the first connecting hole (11). The frame (1) and the guide roller frame (31) are detachably connected by the connector (33) passing through the first connecting hole (11) and the second connecting hole (34).

2. The guide roller device according to claim 1, characterized in that, The frame (1) includes a frame body (12) and a frame slide plate (13) that are fixedly connected; the guide roller frame (31) includes a guide roller frame body (311) and a guide roller frame slide plate (312) that are fixedly connected; the frame slide plate (13) and the guide roller frame slide plate (312) are slidably connected, and the installation direction of the frame slide plate (13) and the guide roller frame slide plate (312) is perpendicular to the direction of the rolling center line.

3. The guide roller device according to claim 2, characterized in that, The frame slide plate (13) includes an L-shaped guide rail composed of a first slide rail portion (131) and a second slide rail portion (132), and the guide roller frame slide plate (312) includes an L-shaped slider composed of a first slider portion (3121) and a second slider portion (3122); the inner side of the L-shaped slider is in sliding contact with the outer side of the L-shaped guide rail.

4. The guide roller device according to claim 3, characterized in that, The number of L-shaped guide rails is two, and the two L-shaped guide rails are symmetrically arranged on both sides of the frame (1); the number of L-shaped sliders is two, and the two L-shaped sliders are symmetrically arranged on both sides of the guide roller frame (31); the two L-shaped sliders are embedded between the two L-shaped guide rails.

5. The guide roller device according to claim 2, characterized in that, The guide roller frame body (311) includes two frames (3111) fixedly connected to the guide roller frame slide plate (312) and symmetrically arranged, each frame (3111) having a groove (3112); the guide roller (32) includes a guide roller shaft (321) and a guide roller body (322) rotatably sleeved on the guide roller shaft (321), the two ends of the guide roller shaft (321) being respectively embedded in the grooves (3112) of the two frames (3111), and the axial direction of the guide roller shaft (321) being perpendicular to the rolling center line.

6. The guide roller device according to claim 5, characterized in that, The guide roller device (3) also includes a cover plate (35) fixedly connected to the two frames (3111); the cover plate (35) has a window (351) and the outer peripheral surface of the guide roller body (322) is at least partially located above the top surface of the window (351).

7. The guide roller device according to claim 6, characterized in that, The guide roller shaft (321) has two sides with positioning sections with flat surfaces at both ends; the cover plate (35) has a pad (352) that fits against the flat surface of the positioning section.

8. The guide roller device according to claim 5, characterized in that, The first connecting hole (11) is provided on the frame slide plate (13), and the axis of the first connecting hole (11) is located in the same plane as the rolling center line.

9. The guide roller device according to claim 5, characterized in that, The second connecting hole (34) is provided on the guide roller frame slide plate (312), and the axis of the second connecting hole (34) is located on the central symmetry plane of the two frames (3111).

10. The guide roller device according to claim 2, characterized in that, The vertical roller device (2) includes a vertical roller (21) and a linear drive device (22) for driving the vertical roller (21) or driving the vertical roller (21) and the guide roller device (3) to slide along the frame slide plate (13).

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