Correcting device for deformed ring casting

Abstract

The invention relates to the technical field of casting, in particular to a correcting device for deformed ring castings, which comprises a plurality of supporting seats and a plurality of supporting columns, a mounting hole is formed in the supporting seat, and the supporting column is detachably connected with the supporting seat through the mounting hole; a convex part is arranged at one end of the supporting seat, a concave part is arranged at the other end of the supporting seat, and the convex part corresponds to the concave part; and every two supporting seats are connected through the convex parts and the concave parts. According to the correcting device for the deformed ring castings, the correcting device is suitable for the ring castings of various diameter specifications on the basis of a modular detachable structure, field assembly is convenient, and the carrying cost and the mounting cost are reduced.

Description

Technical Field

[0001] This application relates to the field of casting technology, and in particular to a correction device for deformed ring castings. Background Technology

[0002] Currently, castings of ring-shaped structures such as annular rings, guide vanes, and complete sets of diaphragm rings have relatively thin walls, large diameter spans, and simple structures. Due to structural issues, deformation and ellipticization can occur during heat treatment, machining, heating, and welding, leading to increased welding volume, longer rework cycles, and reduced production efficiency.

[0003] Currently, the "deformation" of castings is corrected and repaired manually. When processing large-diameter ring castings, the castings and base plates are extremely inconvenient to move due to their large diameter and weight, which consumes a lot of manpower, material resources and time. Summary of the Invention

[0004] Based on this, in order to solve the problems existing in the prior art, this application provides a correction device for deformed ring castings, which uses multiple support modules spliced ​​together to form a base plate of appropriate size, thereby reducing handling costs and expanding application scenarios.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A correction device for deformed ring castings includes several support seats and several support columns; each support seat has a mounting hole, and the support column is detachably connected to the support seat through the mounting hole; one end of each support seat has a protrusion, and the other end has a recess, with the protrusion and the recess corresponding to each other; two support seats are connected to each other through the protrusion and the recess.

[0007] In this embodiment, multiple support bases can be quickly assembled to form an overall support frame. The support columns and support bases are detachably connected, which facilitates assembly, transportation and replacement. The modular structure facilitates on-site assembly, improves the flexibility and adaptability of the device, and is suitable for ring castings of different diameters. It solves the problem of the base plate used for support and the difficulty in handling the casting itself when correcting large-diameter castings in the traditional way, and reduces manpower, material resources and time costs.

[0008] Preferably, the mounting hole is provided with an internal thread, the support column is provided with an external thread, and the mounting hole is threadedly connected to the support column.

[0009] In this embodiment, the connection between the support column and the support base is changed from a conventional plug-in connection to a threaded connection, which enhances the stability and load-bearing capacity of the connection and prevents it from falling off due to vibration or stress. Furthermore, the threaded connection has good adjustment function, which makes it easy to fine-tune the support height to adapt to the deformation of the casting, thereby improving the overall safety and reusability of the device and reducing maintenance costs.

[0010] Preferably, the protrusion of the support base is provided with a hook, and the concave part of the other support base is provided with a groove that cooperates with the hook; or, the concave part of the support base is provided with a hook, and the protrusion of the other support base is provided with a groove that cooperates with the hook.

[0011] In this embodiment, a locking structure with hooks and slots is added to prevent the support from loosening or misaligning during use, thereby improving the rigidity of the overall structure. It also increases the lateral shear resistance and prevents displacement caused by welding or external forces.

[0012] Preferably, the protrusion of the support base is T-shaped; the concave portion of the support base corresponds to the protrusion.

[0013] Preferably, a gasket is provided at the top of the support column.

[0014] Preferably, it further includes: a base plate for supporting the casting to be corrected; the end of the base plate is provided with a fixing post corresponding to the mounting hole, and the base plate is detachably and fixedly connected to the support base through the mounting post and the mounting hole.

[0015] In this embodiment, a base plate structure is introduced as a foundation platform and fixedly connected to the support base. This prevents the casting from moving during operation. The detachable integrated design of the base plate and support base enhances the structural rigidity and safety of the entire device and facilitates standardized operating procedures.

[0016] Preferably, the support base is arc-shaped.

[0017] In this embodiment, the arc-shaped support conforms to the shape of the casting, providing a more uniform distribution of support force and improving the calibration accuracy.

[0018] The correction device for deformed ring castings provided in this application is based on a modular and detachable structure and is suitable for ring castings of various diameters. It is easy to assemble on site and reduces transportation and installation costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the correction device for the deformation of the ring casting provided in the embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the support seat installation when calibrating the diaphragm ring, provided in an embodiment of this application.

[0021] Figure 3 This is an installation diagram of the diaphragm ring during calibration provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the hook and slot provided in the embodiments of this application;

[0023] Figure 5 This is a schematic diagram of the structure of a correction device for a deformed ring casting provided in another embodiment of this application. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The following description, in conjunction with specific embodiments, illustrates the correction device for deformed ring castings, in order to further understand the concept of the correction device for deformed ring castings.

[0028] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the correction device 100 for the deformation of the ring casting provided in this application embodiment.

[0029] A correction device for deformed ring castings includes several support seats 1 and several support columns 2; each support seat 1 is provided with a mounting hole 11, and the support column 2 is detachably connected to the support seat through the mounting hole 11; one end of each support seat is provided with a protrusion 12, and the other end is provided with a recess 13, the protrusion and the recess corresponding to each other; two support seats are connected to each other through the protrusion and the recess.

[0030] like Figures 2-3 As shown, Figure 2 This is a schematic diagram of the support installation when calibrating the diaphragm ring, provided in an embodiment of this application. Figure 3 This is an installation diagram of the diaphragm ring during calibration, provided in an embodiment of this application.

[0031] A certain number of support seats are spliced ​​together as needed, and suitable mounting holes are selected to install support columns to support the thin wall of the diaphragm ring. In this embodiment, multiple support seats can be quickly spliced ​​together based on their corresponding concave and convex parts of shape and size to form a basic overall support plane. The support columns and support seats are detachably connected, facilitating assembly, transportation, and replacement; the number of support seats and support columns can be determined according to the casting to be corrected. In addition, the position and number of mounting holes on the support seats are determined according to the actual situation. The modular design of the support device in this embodiment facilitates on-site assembly, solving the problem of the difficulty in transporting the base plate used for support and the casting itself when correcting large-diameter castings in traditional methods, improving the flexibility and adaptability of the device, applicable to ring castings of different diameters, and reducing manpower, material resources, and time costs.

[0032] Furthermore, in some other embodiments of this application, the mounting hole is provided with an internal thread, the support column is provided with an external thread, and the mounting hole is threadedly connected to the support column.

[0033] In this embodiment, the mounting hole and the support column are connected by threads, which not only enhances the stability and load-bearing capacity of the connection, preventing detachment due to vibration or stress, but also provides good adjustment functionality, facilitating fine-tuning of the support column height to accommodate casting deformation. This also increases the reusability of the support column and reduces its number.

[0034] Furthermore, in some other embodiments of this application, the protrusion of the support base is provided with a hook, and the recess of the other support base is provided with a groove that cooperates with the hook; or, the recess of the support base is provided with a hook, and the protrusion of the other support base is provided with a groove that cooperates with the hook.

[0035] For example, such as Figure 4The schematic diagram of the hook and slot locking structure shown illustrates that, in this embodiment, a hook and slot locking structure is added to the original "protrusion-recession" structure to prevent the support from loosening or misaligning during use, thereby improving the overall structural rigidity. Furthermore, it increases lateral shear resistance, preventing displacement caused by welding or external forces. The specific positions of the hook and slot can be selected according to actual conditions, and this application does not impose any limitations.

[0036] Furthermore, in some other embodiments of this application, the protrusion of the support base is T-shaped; the concave portion of the support base corresponds to the protrusion.

[0037] In this embodiment, the protrusion is a T-shaped structure. The T-shaped structure has better guidance and self-positioning function, improves assembly accuracy, and enhances the structural stability and load-bearing capacity of the connection between the support bases.

[0038] Furthermore, in some other embodiments of this application, a gasket is provided at the top of the support column.

[0039] In this embodiment, a gasket structure is added to the top of the support column to directly contact and protect the surface of the casting. This can support the casting, avoid local stress concentration caused by heat conduction during welding, and thus prevent secondary deformation. At the same time, it can also play a role in heat insulation and buffering, protect the surface quality of the casting, reduce the amount of subsequent grinding work, and improve the yield.

[0040] Furthermore, in some other embodiments of this application, it further includes: a base plate for supporting the casting to be corrected; the end of the base plate is provided with a fixing post corresponding to the mounting hole, and the base plate is fixedly connected to the support base through the fixing post and the mounting hole.

[0041] like Figure 5 As shown, Figure 5 This is a schematic diagram of another correction device provided in this application. In this embodiment, the correction device is rectangular in shape to correct thin-walled ring-shaped castings.

[0042] First, install the base plate and support using the fixing posts and mounting holes. The base plate length must exceed the maximum diameter of the ring, with at least a allowance on both sides along its length to facilitate the subsequent placement of straightening tools. Furthermore, the curvature must be controlled to ≤5°. This strict requirement for curvature is crucial because when straightening cast steel parts, the flatness of the base plate must be ensured first to avoid interference with the straightening results from non-human factors.

[0043] The base plate is designed with a width sufficient to secure the ring in the calibration direction, ensuring stability and preventing wobbling after placement. Additionally, pre-set protrusions on both sides facilitate the placement and installation of pressure equipment (such as jacks) during calibration, significantly improving operator convenience.

[0044] Next, place the ring-shaped cast steel part onto the base plate as required, with the smaller end facing down, and place it vertically on the base plate. During this process, the cast steel part can be welded to one side of the base plate using fixing blocks, such as welding three points. On the other side, position the jack in the middle of the deformation direction of the cast steel part.

[0045] Prior to this, the deformation of the ring-shaped casting was determined by scribing, in order to determine the direction and force of the extrusion. After correction, stress relief was performed within a preset time.

[0046] This embodiment introduces a base plate structure as a foundation platform, which is fixedly connected to the support base. This provides a stable calibration platform, preventing the castings from moving during operation, enhancing the structural rigidity and safety of the entire device, facilitating standardized operating procedures, and improving production efficiency and consistency.

[0047] In some embodiments, the support base is preferably an arc-shaped structure, which matches the contour of the ring casting, fits the shape of the ring casting better, provides a more uniform distribution of support force, reduces local stress concentration, and improves the correction effect; in addition, it also improves the adaptability and aesthetics of the overall device, and is suitable for ring castings of various specifications.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A correction device for deformed ring-shaped castings, characterized in that, It includes several support bases and several support columns; the support bases are provided with mounting holes, and the support columns are detachably connected to the support bases through the mounting holes. The support base has a protrusion at one end and a recess at the other end, with the protrusion and the recess corresponding to each other; the two support bases are connected by the protrusion and the recess.

2. The correction device for deformed ring castings according to claim 1, characterized in that, include: The mounting hole is provided with an internal thread, the support column is provided with an external thread, and the mounting hole is threadedly connected to the support column.

3. The correction device for deformed ring castings according to claim 1, characterized in that, The protrusion of the support base is provided with a hook, and the concave part of the other support base is provided with a groove that cooperates with the hook; or, the concave part of the support base is provided with a hook, and the protrusion of the other support base is provided with a groove that cooperates with the hook.

4. The correction device for deformed ring castings according to claim 3, characterized in that, The protrusion of the support base is T-shaped; the concave part of the support base corresponds to the protrusion.

5. The correction device for deformed ring castings according to claim 1, characterized in that, A gasket is provided at the top of the support column.

6. The correction device for deformed ring castings according to claim 1, characterized in that, Also includes: A base plate is used to support the casting to be corrected; a fixing post corresponding to the mounting hole is provided at the end of the base plate, and the base plate is fixedly connected to the support base through the mounting post and the mounting hole.

7. The correction device for deformed ring castings according to claim 1, characterized in that, The support base is arc-shaped.

Images