A limiting height adjusting device of a straightening section driving beam of a continuous casting machine

Abstract

The utility model relates to continuous casting machine straightening section drive beam technical field, concretely is a kind of continuous casting machine straightening section drive beam's limiting height adjusting device. Including frame body limiting beam, limiting block and adjusting pad;The frame body limiting beam is equipped with vertical bolt hole, limiting block is fixedly connected in the bottom of frame body limiting beam by bolt, bolt head is located in the top of frame body limiting beam, bolt rod end and limiting block are threadedly connected, limiting block bottom surface is as limiting surface and drive beam contact;The adjusting pad is installed in the bottom of frame body limiting beam, and it is located between frame body limiting beam and limiting block. Can not have to disassemble drive beam, not have to repair the crush surface on frame body limiting beam, adjustment is convenient and fast;Reduce maintenance time, save repair cost.

Description

Technical Field

[0001] This utility model relates to the technical field of drive beams in the straightening section of a continuous casting machine, specifically a limit height adjustment device for drive beams in the straightening section of a continuous casting machine. Background Technology

[0002] The drive beam is the "power skeleton" of the straightening section of the continuous casting machine, directly affecting the quality of the cast billet (such as internal cracks and surface quality) and the continuous casting machine's operating rate. Its performance must balance high strength, heat resistance, and dynamic control precision, making it one of the core components in the design of continuous casting equipment.

[0003] During the production process in the straightening section of a continuous casting machine, the limit height of the drive beam needs to be adjusted periodically, primarily to compensate for the wear and tear caused by long-term operation. As the continuous casting machine continues to operate, the drive beam and its associated straightening rollers gradually experience mechanical wear and thermal deformation under high temperature and high load conditions, leading to a decrease in roll gap accuracy. If the limit height is not adjusted, the contact pressure between the drive beam and the billet will become uneven, potentially causing quality problems such as surface scratches and internal cracks in the billet, while also accelerating equipment wear and shortening the service life of critical components. By adjusting the limit height, the designed roll gap dimensions can be restored, ensuring a reasonable distribution of straightening force, thereby reducing abnormal wear, maintaining production stability, extending the replacement cycle of components such as the drive beam and straightening rollers, and reducing maintenance costs.

[0004] However, currently, adjusting the limit height of the drive beam requires the entire drive beam to be disassembled, and shims are added to the drive beam or the crushed surface of the limit beam is repaired by welding. Disassembling the entire drive beam is complex, taking several hours or even longer each time, leading to unplanned downtime of the continuous casting machine, directly impacting production rhythm and capacity. Furthermore, frequent disassembly of bolts and hoisting of the drive beam can cause mechanical wear or deformation of connecting structures (such as threaded holes and locating pins), reducing the overall rigidity of the equipment and even causing safety hazards such as bolt breakage. When welding the crushed surface, the high temperature welding can easily cause localized thermal stress concentration in the limit beam, which may lead to micro-cracks or material embrittlement over time, actually shortening the component's lifespan. Post-weld remachining is also required, increasing costs and time. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a limit height adjustment device for the drive beam of the straightening section of a continuous casting machine, which eliminates the need to disassemble the drive beam and repair the crushed surface on the limit beam of the frame, making adjustment convenient and quick; reducing maintenance time and saving repair costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A height adjustment device for the drive beam of the straightening section of a continuous casting machine includes a frame limiting beam, a limiting block, and an adjusting pad. The frame limiting beam has vertical bolt holes. The limiting block is fixed to the bottom of the frame limiting beam by bolts, with the bolt head located at the top of the frame limiting beam. The end of the bolt rod is threadedly connected to the limiting block, and the bottom surface of the limiting block serves as the limiting surface, contacting the drive beam. The adjusting pad is installed at the bottom of the frame limiting beam and is located between the frame limiting beam and the limiting block.

[0008] Furthermore, the bottom of the frame limiting beam is provided with a limiting block mounting port corresponding to the limiting block.

[0009] Furthermore, the mounting opening of the limiting block is a rectangular through hole.

[0010] Furthermore, the limiting block is a rectangular plate, and a first positioning port and a second positioning port are provided on both sides of the rectangular plate. The first positioning port and the second positioning port are the same size and are symmetrically arranged. The length of the first positioning port is greater than or equal to the thickness of the frame limiting beam, and the distance between the first positioning port and the second positioning port is less than or equal to the length of the limiting block installation port.

[0011] Furthermore, there are two bolt holes.

[0012] Furthermore, the limiting block is provided with a threaded hole corresponding to the bolt hole.

[0013] Furthermore, the adjusting pad is provided with an arched hole corresponding to the bolt hole.

[0014] Compared with the prior art, the present invention has at least the following technical effects or advantages:

[0015] 1. This utility model adopts a combined structure of frame limiting beam, limiting block, and adjusting pad, which is connected by bolts for quick assembly and disassembly. Height adjustment can be completed simply by replacing standardized adjusting pads of different thicknesses, avoiding the thermal deformation problems caused by traditional welding repair processes. Compared with existing technologies, this device does not require complete disassembly of the drive beam, significantly reducing maintenance time; the use of prefabricated adjusting pads enables millimeter-level precision control, significantly improving straightening accuracy; the modular design allows for individual replacement of each component, extending the overall service life. Simultaneously, this structure reduces welding repair costs, eliminates the safety hazards of hot work operations, and reduces maintenance costs compared to traditional methods. This non-welding adjustment scheme is not only easy to operate and highly reliable, but also adaptable to different process requirements, providing an efficient and economical solution for the maintenance of the straightening section of a continuous casting machine, with significant production benefits and promotional value.

[0016] 2. The rectangular through-hole mounting opening at the bottom of the frame limiting beam of this utility model and the rectangular limiting block with symmetrical positioning opening form a self-positioning system. Automatic centering can be achieved without auxiliary tools during installation, thus improving the reliability of the device.

[0017] 3. The through-type arched hole structure of this utility model breaks through the limitation that the traditional adjustment pad must be completely disassembled, allowing the adjustment pad to be directly inserted between the limiting block and the limiting beam of the frame, thus improving the adjustment efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure and usage state of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is an exploded view of the three-dimensional structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting block of this utility model.

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the adjusting shim of this utility model.

[0023] In the diagram: 1. Frame limiting beam; 2. Limiting block; 3. Adjusting pad; 4. Drive beam; 5. Bolt; 11. Limiting block mounting port; 12. Bolt hole; 21. First positioning port; 22. Second positioning port; 23. Threaded hole; 31. Arched hole. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0030] like Figure 1-5 As shown, a limit height adjustment device for the drive beam of the straightening section of a continuous casting machine includes a frame limit beam 1, a limit block 2, and an adjustment pad 3.

[0031] like Figure 1 As shown, the frame limiting beam 1 is set vertically, and the two limiting beams are parallel to each other and are respectively arranged at both ends of the frame, positioned directly above the drive beam 4 of the straightening section of the continuous casting machine.

[0032] like Figure 2 , Figure 3 As shown, the frame limiting beam 1 is a rectangular plate with a limiting block mounting opening 11 at the bottom center, which is a rectangular through hole. The frame limiting beam 1 has two bolt holes 12 that are arranged vertically and extend from the top surface to the limiting block mounting opening 11. The two bolt holes 12 are parallel to each other.

[0033] like Figure 4 As shown, the limiting block 2 is a rectangular plate made of 2Cr13 material. The limiting block 2 has a first positioning port 21 and a second positioning port 22 on both sides. The first positioning port 21 and the second positioning port 22 are rectangular, of the same size, and symmetrically arranged. The length of the first positioning port 21 is equal to the thickness of the frame limiting beam 1, and the distance between the inner edge of the first positioning port 21 and the inner edge of the second positioning port 22 is equal to the length of the limiting block mounting opening 11. During installation, the portion of the limiting block 2 between the first positioning port 21 and the second positioning port 22 is precisely placed within the limiting block mounting opening 11. The limiting block 2 has threaded holes 23 corresponding to the bolt holes.

[0034] like Figure 5 As shown, the adjusting pad 3 is rectangular and has an arched hole 31 corresponding to the bolt hole 12.

[0035] like Figure 1 As shown, during use, the portion between the first positioning port 21 and the second positioning port 22 of the limit block 2 is precisely placed within the limit block mounting port 11, thus achieving the positioning of the limit block 2. The limit block 2 is fixed by bolts 5, with the bottom surface of the limit block serving as the limiting surface in contact with the drive beam. As the limit block 2 wears, the bolts 5 are loosened, and the adjusting shim 3 is inserted between the top surface of the limit block 2 and the frame limiting beam 1. Adding the adjusting shim 3 can compensate for the wear height.

[0036] This utility model adopts a combined structure of frame limiting beam 1, limiting block 2, and adjusting pad 3. It achieves quick assembly and disassembly through bolt connections, and height adjustment can be completed simply by replacing standardized adjusting pads of different thicknesses, avoiding the thermal deformation problems caused by traditional welding repair processes. Compared with existing technologies, this device eliminates the need for complete disassembly of the drive beam 4, significantly reducing maintenance time; the use of prefabricated adjusting pads enables millimeter-level precision control, significantly improving straightening accuracy; the modular design allows for individual replacement of each component, extending the overall service life. Simultaneously, this structure reduces welding repair costs, eliminates the safety hazards of hot work operations, and reduces maintenance costs compared to traditional methods. This non-welding adjustment scheme is not only easy to operate and highly reliable, but also adaptable to different process requirements, providing an efficient and economical solution for the maintenance of the straightening section of a continuous casting machine, with significant production benefits and promotional value.

[0037] The rectangular through-hole mounting port 11 at the bottom of the frame limiting beam 1 of this utility model and the rectangular limiting block 2 with symmetrical positioning ports form a self-positioning system. During installation, automatic centering can be achieved without auxiliary tools, thus improving the reliability of the device.

[0038] The through-type arched hole 31 structure of this utility model breaks through the limitation that the traditional adjustment pad must be completely disassembled, allowing the adjustment pad 3 to be directly inserted between the limiting block 2 and the frame limiting beam 1, thus improving the adjustment efficiency.

[0039] Using this invention eliminates the need to disassemble the drive beam or repair the crushed surface on the frame limiting beam, making adjustments convenient and quick; reducing maintenance time and saving repair costs.

[0040] The scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A limit height adjustment device for the drive beam of the straightening section of a continuous casting machine, characterized in that: Includes frame limiting beams, limiting blocks, and adjusting pads; The frame limiting beam is provided with vertical bolt holes. The limiting block is fixed to the bottom of the frame limiting beam by bolts. The bolt head is located at the top of the frame limiting beam. The end of the bolt rod is threaded to the limiting block. The bottom surface of the limiting block serves as the limiting surface and contacts the drive beam. The adjustment pad is installed at the bottom of the frame limiting beam and is located between the frame limiting beam and the limiting block.

2. The limiting height adjustment device for the drive beam of the straightening section of a continuous casting machine according to claim 1, characterized in that: The bottom of the frame limiting beam is provided with a limiting block installation port corresponding to the limiting block.

3. The limiting height adjustment device for the drive beam of the straightening section of a continuous casting machine according to claim 2, characterized in that: The mounting opening of the limiting block is a rectangular through hole.

4. The limiting height adjustment device for the drive beam of the straightening section of a continuous casting machine according to claim 3, characterized in that: The limiting block is a rectangular plate with a first positioning port and a second positioning port on both sides. The first positioning port and the second positioning port are the same size and are symmetrically arranged. The length of the first positioning port is greater than or equal to the thickness of the frame limiting beam, and the distance between the first positioning port and the second positioning port is less than or equal to the length of the limiting block installation port.

5. The limiting height adjustment device for the drive beam of the straightening section of a continuous casting machine according to claim 1, characterized in that: There are two bolt holes.

6. The limiting height adjustment device for the drive beam of the straightening section of a continuous casting machine according to claim 1, characterized in that: The limiting block is provided with a threaded hole corresponding to the bolt hole.

7. The limiting height adjustment device for the drive beam of the straightening section of a continuous casting machine according to claim 1, characterized in that: The adjusting pad has an arched hole corresponding to the bolt hole.

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