An auxiliary device for centering calibration of a vertical roll mill and a calibration equipment

Abstract

The utility model relates to vertical roll rolling mill technical field discloses a kind of vertical roll rolling mill centering calibration auxiliary device and calibration equipment, the vertical roll rolling mill centering calibration auxiliary device, installation is in the reference component on rolling mill rack, including fixed structure, it is detachably arranged on reference component;Positioning structure, it is arranged on the side of fixed structure away from reference component, extend towards the direction away from reference component, and form the first locating surface and the second locating surface of symmetrical arrangement, wherein, the distance from first locating surface to reference component center line and the distance from second locating surface to reference component center line are equal, and measuring component can be detected the distance of rolling mill two sides vertical roll to reference component center line by first locating surface and second locating surface respectively.The utility model is characterized in that, simple structure, easy to operate and can improve centering calibration efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of vertical roll mill technology, and in particular to an auxiliary device and calibration equipment for centering and calibrating a vertical roll mill. Background Technology

[0002] Alignment and calibration of vertical rolling mills is an indispensable step in hot rolling production. It is typically used after roll changes to adjust and position the roughing mill vertical rolling mill, ensuring that the centerline of the vertical rolls aligns with the rolling centerline, thereby guaranteeing that the billet shape and dimensions meet production requirements. In traditional designs, operators must enter the vertical rolling mill stands, first determining and marking a centerline on the roll nose, and then using a steel ruler for measurement and calibration. However, under high-pressure water erosion conditions, accurately locating the centerline of the roll nose is difficult, leading to significant measurement errors and low alignment and calibration efficiency.

[0003] To address this, existing technology discloses a calibration device comprising a bracket with a positioning groove and a positioning element. A rangefinder is housed within the positioning groove, and the positioning element secures the bracket to the nose beam of the vertical roller. The rangefinder enables centering calibration of the vertical roller. While this design improves the efficiency and accuracy of centering calibration to some extent, it requires a specific model of rangefinder, resulting in poor versatility and high production costs. Furthermore, because the rangefinder's position is fixed, adjusting its position necessitates moving and fixing the entire bracket, which negatively impacts the efficiency of centering calibration. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose an auxiliary device and calibration equipment for centering and calibration of vertical roll mills that is simple in structure, easy to operate, and can improve the efficiency and accuracy of centering and calibration.

[0005] The technical solution adopted by this utility model to solve its technical problem is an auxiliary device for centering and calibrating a vertical rolling mill, which is installed on the reference component of the rolling mill stand, comprising:

[0006] A fixing structure, which is detachably mounted on the reference component;

[0007] A positioning structure is provided on the side of the fixed structure away from the reference component, extending away from the reference component, and forming a first positioning surface and a second positioning surface arranged symmetrically. The distance from the first positioning surface to the center line of the reference component is equal to the distance from the second positioning surface to the center line of the reference component, and the measuring component can detect the distance from the vertical rolls on both sides of the rolling mill to the center line of the reference component through the first positioning surface and the second positioning surface, respectively.

[0008] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the first positioning surface and the second positioning surface extend along the length direction of the reference component and form a space for the measuring component to move, and the measuring component can adjust the detection position when it moves in the space.

[0009] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the fixing structure has an interface that is adapted to the size of the reference component, and the fixing structure is snapped onto the reference component through the interface.

[0010] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the fixing structure includes a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate and the third mounting plate are arranged opposite to each other, and the second mounting plate is perpendicularly connected to the first mounting plate and the third mounting plate, forming the interface. When the fixing structure is engaged on the reference component, the first mounting plate, the second mounting plate, and the third mounting plate abut against the reference component.

[0011] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the first mounting plate, the second mounting plate, and the third mounting plate are integrally formed.

[0012] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the first mounting plate and the third mounting plate are 150mm long, 50mm wide, and 10mm high, and the second mounting plate is 220mm long, 50mm wide, and 10mm high.

[0013] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the positioning structure is perpendicularly connected to the second mounting plate, and both the first positioning surface and the second positioning surface have a 90° angle with the second mounting plate.

[0014] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the positioning structure has a length of 150mm, a width of 50mm, and a height of 10mm.

[0015] In the above-mentioned auxiliary device for centering and calibrating a vertical rolling mill, the positioning structure and the fixing structure are integrally formed.

[0016] The technical solution adopted by this utility model to solve its technical problem is to also provide a calibration device, including the above-mentioned auxiliary device for centering and calibration of vertical rolling mill and a measuring component, wherein the measuring component is a rangefinder or a steel ruler.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. In this utility model, the positioning structure is located on the side of the fixed structure away from the reference component, extending away from the reference component, and forming a symmetrically arranged first positioning surface and second positioning surface. The distance from the first positioning surface to the center line of the reference component is equal to the distance from the second positioning surface to the center line of the reference component, allowing the measuring component to detect the distance from the vertical rolls on both sides of the rolling mill to the center line of the reference component through the first and second positioning surfaces respectively. This design, through the cooperation of the fixed structure, the first positioning surface, and the second positioning surface, constitutes a physical calibration reference parallel to the rolling center line, enabling the measuring component to perform measurement operations flexibly. This not only reduces dependence on specific types of measuring components and lowers production costs but also improves operational convenience.

[0019] 2. In this invention, the first positioning surface and the second positioning surface extend along the length of the reference component, forming a space for the measuring component to move. This design allows the measuring component to adjust its detection position simply by moving itself, effectively improving the convenience and efficiency of adjustment.

[0020] 3. In this utility model, the positioning structure and the fixing structure are integrally formed. This design eliminates the connection gap between the two, significantly enhancing the overall strength and seismic performance of the auxiliary device; on the other hand, it simplifies the assembly process and improves production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the auxiliary device of this utility model installed on the mill stand.

[0022] Figure 2 This is a schematic diagram of the auxiliary device of this utility model.

[0023] Figure 3 for Figure 1 A structural diagram from another perspective.

[0024] Figure 4 for Figure 3 Cross-sectional view at point AA.

[0025] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0026] 100. Fixed structure; 110. First mounting plate; 120. Second mounting plate; 130. Third mounting plate; 101. Interface; 200. Positioning structure; 210. First positioning surface; 220. Second positioning surface; 300. Rolling mill stand; 400. Reference component; 500. Vertical roll. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] like Figures 1 to 4 As shown, in this embodiment, an auxiliary device for centering and calibrating a vertical rolling mill is installed on a reference component 400 of the mill stand 300, and includes:

[0033] The fixed structure 100 is detachably mounted on the reference component 400;

[0034] A positioning structure 200 is located on the side of the fixed structure 100 opposite to the reference component 400, extending away from the reference component 400, and forming a symmetrically arranged first positioning surface 210 and second positioning surface 220. The distance from the first positioning surface 210 to the center line of the reference component 400 is equal to the distance from the second positioning surface 220 to the center line of the reference component 400. The measuring component can detect the distance from the vertical rolls 500 on both sides of the rolling mill to the center line of the reference component 400 through the first positioning surface 210 and the second positioning surface 220, respectively. This design, through the cooperation of the fixed structure 100, the first positioning surface 210, and the second positioning surface 220, constitutes a physical calibration reference parallel to the rolling center line, allowing the measuring component to perform measurement operations flexibly. This not only reduces dependence on specific types of measuring components and lowers production costs, but also improves operational convenience.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, a vertical roll mill typically includes a mill stand 300 and two vertical rolls 500 arranged opposite each other on the mill stand 300, as well as a reference component 400 located on the mill stand 300 and between the two vertical rolls 500. The two vertical rolls 500 rotate to compress the incoming material, causing it to pass through the roll gap to achieve the required thickness and flatness. Since the alignment accuracy of the vertical rolls 500 directly affects product quality, precise alignment adjustment is required after each replacement of the vertical rolls 500. The reference component 400, also known as the intermediate beam, serves as a positioning reference point when the vertical rolls 500 are replaced, ensuring that the newly installed vertical rolls 500 are accurately aligned with the rolling centerline to maintain the accuracy and stability of the rolling process.

[0036] like Figures 1 to 4 As shown, to improve the efficiency and accuracy of centering calibration, this embodiment provides an auxiliary device for centering calibration of a vertical rolling mill. Installed on the reference component 400, it is mainly used to center and calibrate the two vertical rolls 500 of the vertical rolling mill, ensuring they are accurately aligned along the rolling centerline. Using this auxiliary device can significantly reduce errors during the centering process, improve production efficiency, and lower the scrap rate.

[0037] In this embodiment, the auxiliary device mainly consists of a fixing structure 100 and a positioning structure 200. The fixing structure 100 is the foundational component of the entire auxiliary device, responsible for securely mounting the auxiliary device onto the reference component 400. The positioning structure 200 is located on the side of the fixing structure 100 away from the reference component 400, and its main function is to provide a physical calibration reference, enabling the measuring component to perform measurement operations flexibly.

[0038] In this embodiment, the fixing structure 100 is detachably mounted on the reference component 400 by means of snap-fit, threaded connection or magnetic attraction, so that the auxiliary device can be installed and disassembled quickly and conveniently, effectively reducing downtime and improving the overall efficiency of centering and calibration.

[0039] In this embodiment, the fixing structure 100 has an interface 101 that is adapted to the size of the reference component 400, and the fixing structure 100 is snapped onto the reference component 400 through the interface 101. The interface 101 is U-shaped, L-shaped, or V-shaped, and can be specifically designed according to the shape of the reference component 400. Preferably, in this embodiment, the interface 101 is U-shaped and has a self-locking mechanism, which can automatically lock when snapped in, preventing accidental loosening. Furthermore, the design of the interface 101 allows for quick insertion and removal, reducing installation and maintenance time costs.

[0040] In this embodiment, the fixing structure 100 includes a first mounting plate 110, a second mounting plate 120, and a third mounting plate 130. The first mounting plate 110 and the third mounting plate 130 are arranged vertically relative to each other, while the second mounting plate 120 is arranged horizontally and is perpendicularly connected to the first mounting plate 110 and the third mounting plate 130, forming the interface 101. When the fixing structure 100 is engaged with the reference component 400, the first mounting plate 110, the second mounting plate 120, and the third mounting plate 130 abut against the reference component 400. This design allows the fixing structure 100 to form multi-point contact with the reference component 400, increasing the contact area and thus improving the overall stability and vibration resistance.

[0041] Preferably, in this embodiment, the first mounting plate 110, the second mounting plate 120, and the third mounting plate 130 are all rectangular. This rectangular design not only facilitates production through conventional processing methods (such as cutting and stamping), reducing production costs, but also provides a larger planar contact area, ensuring a tight fit between the fixing structure 100 and the reference component 400, thus improving stability. Furthermore, it eliminates the need for operators to consider complex docking angles during installation; simply aligning the fixing structure 100 with the reference component 400 and gently pushing it in completes the mounting process, significantly improving the ease of installation of the auxiliary device.

[0042] In this embodiment, the first mounting plate 110, the second mounting plate 120, and the third mounting plate 130 are integrally formed. This design ensures that the first mounting plate 110, the second mounting plate 120, and the third mounting plate 130 can distribute stress evenly when under load, reducing the possibility of local deformation. Furthermore, since the positions and angles of the three mounting plates are fixed during manufacturing, angular deviations caused by assembly errors are effectively avoided, further improving the accuracy of alignment. Moreover, integral forming reduces the need for manual assembly, lowers the risk of quality problems due to human error, and further enhances the reliability and consistency of the product.

[0043] In this embodiment, the first mounting plate 110 and the third mounting plate 130 are 150mm long, 50mm wide, and 10mm high, respectively, while the second mounting plate 120 is 220mm long, 50mm wide, and 10mm high. The first mounting plate 110 and the third mounting plate 130 are located on either side, providing sufficient lateral support with their 150mm length. The second mounting plate 120 serves as a top support, and its 220mm length ensures a large contact area, enhancing the overall stability of the fixing structure 100 and allowing it to be securely fastened to the reference component 400. The 10mm height and 50mm width design minimizes material usage while ensuring sufficient strength, reducing production costs and achieving a lightweight design.

[0044] In this embodiment, the positioning structure 200 is a rectangular plate, located on the side of the fixed structure 100 opposite to the reference component 400, and extends vertically away from the reference component 400 to compensate for the height difference between the measuring point of the vertical roll 500 and the reference component 400. The positioning structure 200 has a symmetrically arranged first positioning surface 210 and a second positioning surface 220, wherein the distance from the first positioning surface 210 to the center line of the reference component 400 is equal to the distance from the second positioning surface 220 to the center line of the reference component 400. This design not only ensures the consistency and comparability of data from both sides during measurement, providing a precise physical reference for the centering calibration of the vertical roll mill, but also simplifies the centering calibration calculation process and reduces errors caused by asymmetry. Furthermore, it allows for the flexible use of various types of measuring components, such as laser rangefinders or steel rulers, reducing reliance on specific types of measuring components and effectively lowering production costs.

[0045] Because the vertical roller 500 is cylindrical, its surface has a certain curvature, which may prevent the measuring component from being directly aligned with the point to be measured, easily leading to offset or error. Therefore, the position of the measuring component needs to be fine-tuned during the measurement process. To address this, in this embodiment, both the first positioning surface 210 and the second positioning surface 220 extend along the length of the reference component 400, forming a space for the measuring component to move, and the measuring component can adjust its detection position when moving within this space. This design allows the first positioning surface 210 and the second positioning surface 220 to cover a larger measurement area, providing sufficient range of motion for the measuring component, enabling it to flexibly adjust its detection position within the same plane and ensuring the accuracy of each measurement. This design not only solves the measurement problem caused by the cylindrical vertical roller 500 but also significantly improves the flexibility and efficiency of the measurement. Compared with existing designs that require the entire calibration device to move, the measuring component in this design can adjust its detection position simply by moving itself, effectively improving the convenience and efficiency of adjustment.

[0046] In this embodiment, the positioning structure 200 is perpendicularly connected to the second mounting plate 120, and both the first positioning surface 210 and the second positioning surface 220 have a 90° angle with the second mounting plate 120. This design allows the positioning structure 200 and the fixed structure 100 to form a stable geometric frame, enhancing the rigidity and vibration resistance of the entire device. The 90° angle design makes the operation of the measuring component more intuitive; the operator does not need to calculate the angle offset separately and can directly use the positioning surfaces to complete the centering and calibration of the vertical roller 500.

[0047] In this embodiment, the positioning structure 200 has a length of 150mm, a width of 50mm, and a height of 10mm. The 150mm length allows the positioning structure 200 to cover common height differences between the measuring points of the vertical roller 500 and the reference component 400, ensuring that the measuring component can operate at the correct height. The 50mm width provides ample room for movement of the measuring component, ensuring the accuracy of each measurement. The 10mm height saves material while ensuring the rigidity and strength of the positioning structure 200.

[0048] In this embodiment, the positioning structure 200 and the fixing structure 100 are integrally formed. This design eliminates the connection gap between the two, significantly enhancing the overall strength and seismic performance of the auxiliary device; on the other hand, it simplifies the assembly process and improves production efficiency.

[0049] In this embodiment, a calibration device is also provided, which includes the aforementioned auxiliary device and measuring component (not shown in the figure), wherein the measuring component is a laser rangefinder or a steel ruler. This calibration device, by combining precise auxiliary devices with flexible measuring tools, provides an efficient and reliable solution for the centering calibration of vertical rolling mills.

[0050] In this embodiment, a calibration method is also provided, which includes the following steps:

[0051] Opening degree calibration steps: Place the laser rangefinder against the surface of one vertical roller 500, and adjust the beam to the surface of the other vertical roller 500. The opening degree is calibrated by measuring the distance between the two vertical rollers 500, and at the same time, the installation position of the auxiliary device is determined to ensure its quick and accurate engagement.

[0052] Centering and calibration steps: First, according to the beam path of the laser rangefinder, clamp the auxiliary device onto the reference component 400, and ensure that the first positioning surface 210 and the second positioning surface 220 are within the beam path to complete the centering and calibration. Then, place the laser rangefinder against the first positioning surface 210 or the second positioning surface 220, and illuminate the surface to be measured on the vertical roller 500 opposite to the first positioning surface 210 or the second positioning surface 220. Measure the distances from the two vertical rollers 500 to the reference component 400 sequentially.

Claims

1. An auxiliary device for centering calibration of an edger mill, which is installed on a reference member of a mill stand, characterized in that, include: A fixing structure, which is detachably mounted on the reference component; A positioning structure is provided on the side of the fixed structure away from the reference component, extending away from the reference component, and forming a first positioning surface and a second positioning surface arranged symmetrically. The distance from the first positioning surface to the center line of the reference component is equal to the distance from the second positioning surface to the center line of the reference component, and the measuring component can detect the distance from the vertical rolls on both sides of the rolling mill to the center line of the reference component through the first positioning surface and the second positioning surface, respectively.

2. A device for alignment calibration of a vertical roll mill according to claim 1, characterized in that The first positioning surface and the second positioning surface extend along the length direction of the reference component and form a space for the measuring component to move, and the measuring component can adjust the detection position when it moves in the space.

3. The apparatus according to claim 1, characterized in that, The fixing structure has an interface that is adapted to the size of the reference component, and the fixing structure is snapped onto the reference component through the interface.

4. A device for alignment calibration of a vertical roll mill according to claim 3, characterized in that The fixing structure includes a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate and the third mounting plate are arranged opposite to each other. The second mounting plate is perpendicularly connected to the first mounting plate and the third mounting plate, respectively, and forms the interface. When the fixing structure is engaged with the reference component, the first mounting plate, the second mounting plate, and the third mounting plate abut against the reference component.

5. A device for alignment calibration of a vertical roll mill according to claim 4, characterized in that The first mounting plate, the second mounting plate, and the third mounting plate are integrally formed.

6. A device for alignment calibration of a vertical roll mill according to claim 4, characterized in that The first mounting plate and the third mounting plate are 150mm long, 50mm wide, and 10mm high, and the second mounting plate is 220mm long, 50mm wide, and 10mm high.

7. The apparatus according to claim 4, wherein, The positioning structure is perpendicularly connected to the second mounting plate, and both the first positioning surface and the second positioning surface have a 90° angle with the second mounting plate.

8. A device for alignment calibration of a vertical roll mill according to claim 7, characterized in that The positioning structure has a length of 150mm, a width of 50mm, and a height of 10mm.

9. The apparatus according to claim 1, wherein, The positioning structure and the fixing structure are integrally formed.

10. A calibration apparatus characterized by comprising: It includes the auxiliary device for centering and calibrating a vertical roll mill as described in any one of claims 1 to 9, and the measuring component, wherein the measuring component is a laser rangefinder or a steel ruler.

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