Rolling mill guide and guard device and rolling mill
By designing a "double hook" structure in the rolling mill guide device, and using the matching slope and positioning structure, the problem of "decoupling" between the upper guide and the working roller guard plate is solved, and the stability and operating reliability of the equipment are improved.
Patent Information
- Application Number
- CN202421712776.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-18
AI Technical Summary
When the existing medium-thickness plate rolling mill guide device is used, the upper guide and the working roller guard are easily "decoupled", resulting in equipment failure and shutdown.
A rolling mill guide device is designed, by setting a mating incline on the work roller guard plate and the upper guard, and using the plug-in structure of the positioning hole and the positioning column, a "double hook" structure is formed, which improves the connection stability of the upper guard plate and the work roller guard plate.
It effectively avoids the problem of separation between the upper guide and the work roller protective plate, improves the operating stability of the equipment, and prevents equipment failure caused by the impact of the slab head.
Smart Images
Figure CN223028125U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling mill guide devices, and in particular, to a rolling mill guide device and a rolling mill. Background Art
[0002] When the existing medium and heavy plate rolling mill guide device is in use, the front end of the upper guide hooks the work roll guard plate and follows the upper work roll during the roll gap adjustment of the rolling mill guide device. However, when the slab has a serious warping head, it will scrape or impact the upper guide, resulting in the "disengagement" of the upper guide from the work roll guard plate and causing the equipment to stop due to a malfunction. Summary of the Utility Model
[0003] The problem solved by the utility model is: how to solve the problem of "disengagement" between the upper guide and the work roll guard plate.
[0004] To solve the above problems, on the one hand, the utility model provides a rolling mill guide device, which includes a work roll guard plate and an upper guide. A first mating inclined surface is provided on the work roll guard plate, and a second mating inclined surface is provided on the upper guide. Both the first mating inclined surface and the second mating inclined surface are inclined upward along the rolling direction. The second mating inclined surface abuts against the first mating inclined surface from below the first mating inclined surface. A positioning hole is provided on the first mating inclined surface, and a positioning post is provided on the second mating inclined surface. The positioning post is inserted into the positioning hole.
[0005] Optionally, a notch is provided on the work roll guard plate, and a convex block is provided on the upper guide. The first mating inclined surface is provided in the notch, and the second mating inclined surface is provided on the convex block. The convex block is inserted into the notch so that the first mating inclined surface abuts against the second mating inclined surface.
[0006] Optionally, the rolling mill guide device further includes a driving member, which is used to be installed on the frame of the rolling mill guide device and is drivingly connected to the upper guide to realize the vertical movement of the upper guide.
[0007] Optionally, the upper guide is used to be slidably connected to the frame in the vertical direction.
[0008] Optionally, the driving member is set as a locking oil cylinder.
[0009] Optionally, a high-temperature resistant rubber ring is provided on the circumferential side wall of the positioning post, and the high-temperature resistant rubber ring is connected between the positioning post and the positioning hole.
[0010] Optionally, one end of the positioning post is connected to the upper guide by threading or welding.
[0011] Optionally, the depth of the positioning hole is greater than the length of the positioning post.
[0012] Compared with the prior art, in the guide device of the rolling mill of the present utility model, the second mating inclined surface abuts against the first mating inclined surface from below the first mating inclined surface, and the first mating inclined surface and the second mating inclined surface are inclined upward along the rolling direction. The first mating inclined surface and the second mating inclined surface form a primary "hook" structure between the upper guide and the working roll guard plate. Then, by inserting the positioning hole on the first mating inclined surface with the positioning post on the second mating inclined surface, a secondary "hook" structure can be formed between the upper guide and the working roll guard plate, thereby forming a "double-hook" structure between the upper guide and the working roll guard plate. The "double-hook" structure can improve the connection stability between the upper guide and the working roll guard plate 1. In this way, even if the slab warps and hits the upper guide, the "double-hook" structure can prevent the upper guide and the working roll guard plate from separating from each other, so as to solve the problem of "unhooking" between the upper guide and the working roll guard plate.
[0013] On the other hand, the present utility model also provides a rolling mill, including the guide device of the rolling mill as described above.
[0014] This rolling mill has all the beneficial effects of this guide device of the rolling mill, which will not be elaborated here. Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of the guide device of the rolling mill in the embodiment of the present utility model;
[0016] Figure 2 is Figure 1 an enlarged view of part A in
[0017] Figure 3 is a schematic structural diagram of the sliding connection between the upper guide and the frame in the embodiment of the present utility model.
[0018] Description of the Reference Numerals:
[0019] 1 - working roll guard plate; 11 - first mating inclined surface; 12 - positioning hole; 13 - notch; 2 - upper guide; 21 - second mating inclined surface; 22 - positioning post; 23 - convex block; 24 - guiding clamp block; 25 - guiding key; 3 - driving member. Detailed Embodiments
[0020] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings.
[0021] In the attached drawings, the Z-axis represents the vertical position, and the positive direction of the Z-axis (i.e., the direction pointed by the arrow of the Z-axis) represents the upper side, and the negative direction of the Z-axis (i.e., the direction opposite to the positive direction of the Z-axis) represents the lower side; in the attached drawings, the X-axis represents the horizontal position, and the positive direction of the X-axis (i.e., the direction pointed by the arrow of the X-axis) represents the left side, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the right side; in the attached drawings, the Y-axis represents the front-back position, and the positive direction of the Y-axis (i.e., the direction pointed by the arrow of the Y-axis) represents the front side, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the back side. It should be noted that the above-described meanings of the Z-axis, Y-axis, and X-axis are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.
[0022] It should be noted that in the description of the present invention, the terms "first", "second", etc. in the specification, claims, and the above-mentioned attached drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.
[0023] Combined with Figures 1 to 2 As shown, the present invention provides a rolling mill guide device, which includes a working roll guard plate 1 and an upper guide 2. A first mating inclined surface 11 is provided on the working roll guard plate 1, and a second mating inclined surface 21 is provided on the upper guide 2. Both the first mating inclined surface 11 and the second mating inclined surface 21 are inclined upward along the rolling direction. The second mating inclined surface 21 abuts against the first mating inclined surface 11 from below the first mating inclined surface 11. A positioning hole 12 is provided on the first mating inclined surface 11, and a positioning post 22 is provided on the second mating inclined surface 21. The positioning post 22 is inserted into the positioning hole 12.
[0024] It should be noted that generally, upper guides 2 are respectively provided on the left and right sides of the working roll of the rolling mill, and the two upper guides 2 are symmetrically arranged with respect to the working roll. In this specification, only the upper guide 2 on the right side of the working roll is used for illustrative purposes.
[0025] Specifically, the rolling direction of the rolling mill is the negative direction of the X-axis, that is, the slab moves along the negative direction of the X-axis and passes through the work roll. The first mating inclined surface 11 is located at the lower end of the work roll guard plate 1, and the second mating inclined surface 21 is located at the left end of the upper guide 2, and the second mating inclined surface 21 is located below the first mating inclined surface 11. Both the first mating inclined surface 11 and the second mating inclined surface 21 slope upward toward the negative direction of the X-axis. That is, the included angle between the inclination directions of the first mating inclined surface 11 and the second mating inclined surface 21 and the negative direction of the X-axis is an acute angle. When the second mating inclined surface 21 abuts against the first mating inclined surface 11 from below the first mating inclined surface 11, the upper guide 2 can hook the work roll guard plate 1 to perform the first limit on the work roll guard plate 1. At the same time, after the second mating inclined surface 21 abuts against the first mating inclined surface 11, the positioning post 22 can be inserted into the positioning hole 12 to form a plug-in structure with the positioning hole 12, so that the upper guide 2 can hook the work roll guard plate 1 again. That is, a "double-hook" structure is formed between the upper guide 2 and the work roll guard plate 1. When the slab warps up and impacts the upper guide 2, the abutting fit of the first mating inclined surface 11 and the second mating inclined surface 21 and the plugging of the positioning post 22 and the positioning hole 12 can prevent the relative displacement between the work roll guard plate 1 and the upper guide 2, thereby overcoming the decoupling of the upper guide 2 caused by the slab impacting the upper guide 2.
[0026] Therefore, in this embodiment, the second mating inclined surface 21 abuts against the first mating inclined surface 11 from below the first mating inclined surface 11, and the first mating inclined surface 11 and the second mating inclined surface 21 slope upward along the rolling direction. The first mating inclined surface 11 and the second mating inclined surface 21 form a "hook" structure once between the upper guide 2 and the work roll guard plate 1. Then, by inserting the positioning hole 12 on the first mating inclined surface 11 and the positioning post 22 of the second mating inclined surface 21, a secondary "hook" structure can be formed between the upper guide 2 and the work roll guard plate 1, and further a "double-hook" structure is formed between the upper guide 2 and the work roll guard plate 1. The "double-hook" structure can improve the connection stability between the upper guide 2 and the work roll guard plate 1. In this way, even if the slab warps up and impacts the upper guide 2, the "double-hook" structure can prevent the upper guide 2 and the work roll guard plate 1 from separating from each other to solve the problem of "decoupling" between the upper guide 2 and the work roll guard plate 1.
[0027] Optionally, as shown in Figure 1 and Figure 2 , a notch 13 is provided on the work roll guard plate 1, a convex block 23 is provided on the upper guide 2, a first mating inclined surface 11 is provided in the notch 13, a second mating inclined surface 21 is provided on the convex block 23, and the convex block 23 is inserted into the notch 13 so that the first mating inclined surface 11 abuts against the second mating inclined surface 21.
[0028] Specifically, the notch 13 is located at the lower end of the working roll guard plate 1, and the convex block 23 is located at the left end of the upper guide guard 2. The notch 13 includes an upper end face facing the positive direction of the Z-axis, and the upper end face is set as the first mating inclined surface 11. Similarly, the upper end face of the convex block 23 is set as the second mating inclined surface 21. When the convex block 23 is inserted into the notch 13, the first mating inclined surface 11 abuts against the second mating inclined surface 21.
[0029] In this way, by setting the first mating inclined surface 11 on the notch 13 of the working roll guard plate 1, setting the second mating inclined surface 21 on the convex block 23 of the upper guide guard 2, and then enabling the convex block 23 to be inserted into the notch 13 so that the first mating inclined surface 11 abuts against the second mating inclined surface 21, the quick positioning of the first mating inclined surface 11 and the second mating inclined surface 21 can be achieved by using the insertion of the convex block 23 and the notch 13, so as to improve the connection efficiency between the upper guide guard 2 and the working roll guard plate 1.
[0030] Optionally, as shown in Figure 1 and Figure 2 the mill guide device further includes a driving member 3. The driving member 3 is used to be installed on the frame of the mill guide device and is drivingly connected to the upper guide guard 2 to realize the vertical movement of the upper guide guard 2.
[0031] Specifically, the driving member 3 can be an oil cylinder. The oil cylinder is vertically installed on the frame, and the cylinder rod of the oil cylinder is downward. The cylinder rod of the oil cylinder is drivingly connected to the upper guide guard 2, and the vertical movement of the upper guide guard 2 in the vertical direction is realized through the telescopic movement of the cylinder rod.
[0032] In this way, by installing the driving member 3 on the frame of the mill guide device and drivingly connecting it to the upper guide guard 2 to realize the vertical movement of the upper guide guard 2, the position of the upper guide guard 2 in the vertical direction can be adjusted, so as to adjust the vertical position of the upper guide guard 2, thereby improving the use flexibility of the upper guide guard 2.
[0033] Optionally, as shown in Figure 3 the upper guide guard 2 is used to be slidably connected to the frame in the vertical direction.
[0034] Specifically, a guiding key 25 is arranged on the frame, a guiding clamp block 24 is arranged on the upper guide guard 2, and a sliding groove is arranged on the guiding clamp block 24. The guiding clamp block 24 is slidably connected to the guiding key 25 through the sliding groove. In this way, by the sliding connection between the upper guide guard 2 and the frame, the frame can guide the vertical movement of the upper guide guard 2 to improve the moving accuracy of the upper guide guard 2.
[0035] Optionally, the driving member 3 is set as a locking oil cylinder.
[0036] It can be understood that generally, the upper guide guard 2, the working roll and the working roll guard plate 1 in the mill move up and down synchronously, and the working roll guard plate 1 is installed on the bearing seat of the working roll.
[0037] Specifically, the locking oil cylinder refers to a composite oil cylinder with an oil cylinder and a locking mechanism. After the cylinder rod of the oil cylinder extends, its locking mechanism can lock the cylinder rod, thereby avoiding the continuous supply of hydraulic pressure by the oil cylinder.
[0038] Specifically, during the rolling operation of the rolling mill, the upper guide guard 2 "hooks" the working roll guard plate 1 under the drive of the locking oil cylinder. In this state, the locking mechanism of the locking oil cylinder locks the cylinder rod of the oil cylinder. Thus, during the synchronous up-and-down movement of the working roll, the working roll guard plate 1, the upper guide guard 2, and the locking oil cylinder, the locking of the cylinder rod by the locking mechanism can be utilized to achieve the effect of restricting the up-and-down movement of the cylinder rod relative to the cylinder body. While ensuring that the upper guide guard 2 "hooks" the working roll guard plate 1, the oil cylinder can stop providing upward hydraulic pressure to avoid the continuous supply of hydraulic pressure and prevent the oil cylinder from "actively" pulling up the upper guide guard 2. When the upper guide guard 2 needs to move up and down relative to the working roll guard plate 1, for example, when changing the working roll or during guide guard maintenance, the locking mechanism of the locking oil cylinder needs to be opened, and the upper guide guard 2 moves independently relative to the working roll guard plate under the drive of the locking oil cylinder to achieve decoupling and rehooking.
[0039] In this way, by setting the driving member 3 as a locking oil cylinder, when the oil cylinder drives the upper guide guard 2 to "hook" the working roll guard plate 1, the locking mechanism locks the cylinder rod. During the operation of the rolling mill, the oil cylinder no longer needs to provide continuous pulling force to keep the upper guide guard 2 and the working roll guard plate 1 relatively stationary, so that the upper guide guard 2 no longer receives the continuous reaction force from the working roll guard plate 1, thereby eliminating the eccentric load between the guiding clamp block 24 and the guiding key 25, and further reducing the eccentric load between the upper guide guard 2 and the frame, thus improving the stability of the sliding connection between the upper guide guard 2 and the frame.
[0040] Optionally, a high-temperature resistant rubber ring is provided on the circumferential side wall of the positioning post 22, and the high-temperature resistant rubber ring is connected between the positioning post 22 and the positioning hole 12. In this way, by using the high-temperature resistant rubber ring to connect between the positioning post 22 and the positioning hole 12, the friction force between the positioning post 22 and the positioning hole 12 can be increased to improve the stability of the insertion of the positioning post 22 into the positioning hole 12.
[0041] Optionally, one end of the positioning post 22 is connected to the upper guide guard 2 by threading or welding.
[0042] Specifically, taking the threaded connection as an example, the lower end of the positioning post 22 is provided with an external thread, and the second mating inclined surface 21 is provided with an internal thread. The positioning post 22 and the second mating inclined surface 21 are connected by threading. In this way, by connecting one end of the positioning post 22 to the upper guide guard 2 by threading, the connection stability between the positioning post 22 and the second mating inclined surface 21 can be improved.
[0043] Optionally, the depth of the positioning hole 12 is greater than the length of the positioning post 22. In this way, the positioning hole 12 can completely accommodate the positioning post 22, enabling the positioning post 22 to be fully inserted into the positioning hole 12, thereby improving the stability of the insertion of the positioning hole 12 and the positioning post 22.
[0044] Another embodiment of the present invention further provides a rolling mill, including the rolling mill guide device as described above.
[0045] This rolling mill has all the beneficial effects of this rolling mill guide device, which will not be elaborated here.
[0046] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, and these changes and modifications will all fall within the protection scope of the present invention.
Claims
1. A rolling mill guide device, characterized in that: The invention comprises a working roll protection plate (1) and an upper guide (2), wherein the working roll protection plate (1) is provided with a first matching bevel (11), and the upper guide (2) is provided with a second matching bevel (21), and the first matching bevel (11) and the second matching bevel (21) are both inclined upward along the rolling direction, and the second matching bevel (21) abuts against the first matching bevel (11) from below the first matching bevel (11), and a positioning hole (12) is provided on the first matching bevel (11), and a positioning column (22) is provided on the second matching bevel (21), and the positioning column (22) is plugged into the positioning hole (12).
2. The rolling mill guide device according to claim 1, characterized in that: The working roller protection plate (1) is provided with a notch (13), the upper guide (2) is provided with a protrusion (23), the notch (13) is provided with the first matching bevel (11), the protrusion (23) is provided with the second matching bevel (21), and the protrusion (23) is plugged into the notch (13) so that the first matching bevel (11) and the second matching bevel (21) are abutted against each other.
3. The rolling mill guide device according to claim 1, characterized in that: The rolling mill guide device also includes a driving member (3), which is used to be installed on the frame of the rolling mill guide device and is drivingly connected to the upper guide (2) to realize the vertical movement of the upper guide (2).
4. The rolling mill guide device according to claim 3, characterized in that: The upper guide (2) is used for being slidably connected with the frame along the vertical direction.
5. The rolling mill guide device according to claim 3, characterized in that: The driving member (3) is configured as a locking oil cylinder.
6. The rolling mill guide device according to claim 1, characterized in that: A high temperature resistant rubber ring is provided on the circumferential side wall of the positioning column (22), and the high temperature resistant rubber ring is connected between the positioning column (22) and the positioning hole (12).
7. The rolling mill guide device according to claim 1, characterized in that: One end of the positioning column (22) is connected to the upper guide (2) via threads or welding.
8. The rolling mill guide device according to claim 1, characterized in that: The depth of the positioning hole (12) is greater than the length of the positioning column (22).
9. A rolling mill, characterized in that: It comprises a rolling mill guide device as described in any one of claims 1-8.