Universal pressure test tool suitable for various continuous casting fan-shaped section waterway pressure tests
By designing a general-purpose pressure test tooling suitable for waterway pressure testing of multiple continuous casting fan sections, the problem of large storage and storage workload and high cost of tooling plates caused by the groove width of different seat plates and the center distance of water holes is solved, and the universality and cost of tooling is reduced, and the accuracy and sealing of pressure test are improved.
Patent Information
- Application Number
- CN202422409049.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the waterway pressure test tooling in the continuous casting fan section has different groove widths and water hole center distances, which leads to the corresponding pressure test cover plate matching of each type of seat plate, resulting in large workloads and high cost of storage and storage of tool plates.
A general-purpose pressure test tooling including an inner arc frame and an outer arc frame is designed. Using connecting bolts and frame support, combined with the first pressure test cover plate, plug and sealing ring, the applicability to different groove widths and water hole center distance is achieved, and the type and cost of the tooling are reduced.
The same set of tooling is realized to be suitable for seat plate groove widths of various sizes, reducing the number of tooling, reducing management difficulty and cost, and improving the waterway sealing and pressure testing accuracy.
Smart Images
Figure CN223295580U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure testing tooling, in particular to a universal pressure testing tooling suitable for waterway pressure testing of various continuous casting sector segments. Background Art
[0002] The continuous casting segment is one of the key large-scale equipment in the continuous casting production line. After the liquid steel comes out of the crystallizer, it moves forward and cools in the roller table formed by the upper and lower frames of the segment until it forms a qualified steel billet. The continuous casting rollers are assembled on the continuous casting segment. Each slab continuous casting production line consists of 13-15 sets of segments according to the different specifications of the steel billets produced. A single set of segments consists of inner and outer arcs, and is equipped with a total of 14 sets of continuous casting rollers ( Figure 1 ).
[0003] The fan-shaped segment has a complex structure. The key is that the cooling water pipes are welded to the main body for nearly 100 meters to provide circulating water cooling for the continuous casting roller bearings. The welds of the water pipes must be leak-proof.
[0004] During the pressure test, the pressure test plugs are often not universal because of the different widths of the seat plate grooves and the different center distances of the water holes on the 5 seat plates in the fan-shaped sections at different positions ( Figure 2 ), each type of seat plate requires a corresponding pressure test cover plate to match, resulting in a large workload for storing and keeping the tooling plates and high cost for making the tooling plates.
[0005] Therefore, the above problems are solved by a universal pressure testing tool suitable for water channel pressure testing of various continuous casting sectors. Summary of the Invention
[0006] The purpose of the utility model is to provide a universal pressure testing tool suitable for waterway pressure testing of various continuous casting sector segments, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above objectives, the present invention provides the following technical solution: comprising an inner arc frame and an outer arc frame, wherein frame supports are provided at opposite ends of the inner arc frame and the outer arc frame, and connecting bolts are provided between the frame supports and the inner arc frame and the outer arc frame.
[0008] Preferably, first pressure test cover plates are provided on both sides of the top of the frame support, and the top of the first pressure test cover plates is provided with a through hole, and the interior of the through hole is connected to the connecting bolt.
[0009] Preferably, a channel is symmetrically opened on the end surface of the frame support, and one end of the channel is connected to a plug.
[0010] Preferably, a groove is provided on the outer circumferential surface of the plug, and a sealing ring is clamped inside the groove.
[0011] Preferably, the sealing ring is located between the plug and the channel.
[0012] Preferably, the inner arc frame and the outer arc frame are connected with a pipe, and the pipe is communicated with the channel.
[0013] Preferably, the plug is located at the bottom end of one side of the frame support.
[0014] Technical effects and advantages of this utility model:
[0015] 1. The first pressure test cover plate of the utility model is suitable for universal pressure test structures with various groove widths and water hole center distances, which reduces costs and reduces the types of tooling. The first pressure test cover plate is changed into a half-piece type, which can be adjusted according to different groove widths. A plug for sealing the water hole is added, and the plug is used as a handle for easy disassembly and assembly. A hole position platform is processed at the position of the pressure plate plug, which can be used to observe whether there is water leakage.
[0016] 2. The utility model provides cooling water to the inner arc frame and the outer arc frame through the pipeline. The cooling water is connected to the channel. Then the channel is blocked by the plug to keep the cooling water inside the channel to detect whether the channel is leaking.
[0017] 3. The first pressure test cover plate of the utility model can be applied to various sizes of seat plate groove widths. All frames of the same continuous casting line can be pressure tested with this set of tooling, which greatly reduces the number of tooling and reduces the difficulty of tooling management. At the same time, it also greatly reduces the tooling cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0019] Figure 2 This is a schematic diagram of the second pressure test cover structure of the prior art of the utility model.
[0020] Figure 3 This is a schematic structural diagram of the first pressure test cover plate of the utility model.
[0021] Figure 4 This is a schematic diagram of the plug structure of the utility model.
[0022] In the figure: 1. Inner arc frame; 2. Fixed plate; 3. Continuous casting roller; 4. Outer arc frame; 5. Pipeline; 6. Frame support; 7. Connecting bolt; 8. Sealing ring; 9. Channel; 10. First pressure test cover plate; 11. Plug; 12. Second pressure test cover plate. DETAILED DESCRIPTION
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0024] The continuous casting segment is one of the key large-scale equipment in the continuous casting production line. After the liquid steel comes out of the crystallizer, it moves forward and cools in the roller table formed by the upper and lower frames of the segment until it forms a qualified steel billet. The continuous casting rollers are assembled on the continuous casting segment. Each continuous casting production line consists of 13-15 sets of segments according to the different specifications of the steel billets produced. A single set of segments consists of inner and outer arcs, and is equipped with a total of 14 sets of continuous casting rollers ( Figure 1 ).
[0025] The fan-shaped segment structure is complex, and the key is that the cooling water pipeline of nearly 100 meters is welded to the main body to provide circulating water cooling for the continuous casting roller bearings. It is necessary to ensure that the water channel welds are leak-proof.
[0026] During the pressure test, the pressure test plugs are often not universal because of the different structures of the fan-shaped segments, the different seat plate groove widths, and the different center distances of the water holes on the 5 seat plates. Figure 2 Each type of seat plate requires a corresponding pressure test cover plate to match, which results in a large workload for storing and keeping the tooling plates and high cost for making the tooling plates.
[0027] The utility model provides Figures 1 to 3 The shown embodiment is a universal pressure testing fixture suitable for waterway pressure testing of various continuous casting sector segments, comprising an inner arc frame 1 and an outer arc frame 4, wherein frame supports 6 are provided at opposite ends of the inner arc frame 1 and the outer arc frame 4, and connecting bolts 7 are provided between the frame supports 6 and the inner arc frame 1 and the outer arc frame 4.
[0028] When in use, the continuous casting segment is one of the key large-scale equipment in the continuous casting production line. After the liquid steel comes out of the crystallizer, it moves forward and cools in the roller table formed by the upper and lower frames of the segment until it forms a qualified steel billet. The continuous casting rollers 3 are assembled on the continuous casting segment. Each continuous casting production line consists of 13-15 sets of segments according to the specifications of the steel billets produced. A single set of segments consists of an inner arc frame 1 and an outer arc frame 4, and is equipped with a total of 14 sets of continuous casting rollers 3. Figure 1 The fan-shaped segment has a complex structure. The key is that a cooling water pipe 5 of nearly 100 meters is welded on its body to provide circulating water cooling for the bearings of the continuous casting roller 3. It is necessary to ensure that there is no leakage at the water channel welds.
[0029] Therefore, the present application fixes the frame support 6 on the opposite surfaces of the inner arc frame 1 and the outer arc frame 4 by connecting bolts 7 to perform a closed pressure test on the sector segment.
[0030] A first pressure test cover plate 10 is provided on both sides of the top of the frame support 6 . A through hole is provided at the top of the first pressure test cover plate 10 . The interior of the through hole is connected to the connecting bolt 7 .
[0031] The plug 11 is located at the bottom end of one side of the frame support 6 .
[0032] When in use, it is necessary to prepare for the pressure test. Often, due to the different structures of the fan-shaped segments, the different widths of the seat plate grooves, and the different center distances of the water holes on the 5 seat plates, the second pressure test cover plate 12 cannot be universal. Figure 2 Each type of seat plate requires a corresponding pressure test cover plate to match, which results in a large workload for storing and keeping the tooling plates and high cost for making the tooling plates.
[0033] Therefore, the present application divides the first pressure test cover plate 10 into two sections, which are fixed on the frame support 6 by connecting bolts 7 respectively. The first pressure test cover plate 10 is a horizontal bar and a vertical bar. One side of the horizontal bar is connected to the connecting bolt 7, and the bottom end of the horizontal bar on the other side is used to press the plug 11, and the vertical bar is used to support the horizontal bar, so that the height of the horizontal bar and the two ends of the frame support 6 are at the same horizontal plane, which is convenient for connection with the connecting bolts 7.
[0034] A channel 9 is symmetrically formed on the end surface of the frame support 6 , and a plug 11 is connected to one end of the channel 9 .
[0035] When in use, the channel 9 of the frame support 6 is opened below the first pressure test cover plate 10, and the inside of the channel 9 is connected to a plug 11, which is used to seal the channel 9 to prevent water from flowing out of the channel 9 during the pressure test, causing errors in the pressure test.
[0036] A groove is formed on the outer circumferential surface of the plug 11 , and a sealing ring 8 is clamped inside the groove.
[0037] The sealing ring 8 is located between the plug 11 and the channel 9 .
[0038] When in use, the sealing ring 8 on the outer cylindrical surface of the plug 11 is used to seal the channel 9 to prevent leakage in the seal between the plug 11 and the channel 9, which would cause the cooling water to flow out.
[0039] The inner arc frame 1 and the outer arc frame 4 are connected with a pipe 5 , and the pipe 5 is communicated with a channel 9 .
[0040] When in use, the pipe 5 provides cooling water to the inner arc frame 1 and the outer arc frame 4, and the cooling water is connected to the channel 9. Then the plug 11 blocks the channel 9 so that the cooling water is inside the channel 9 to detect whether the channel 9 is leaking.
[0041] How it works
[0042] When preparing for the pressure test, the fixed plate 2 and the continuous casting roller 3 are removed from one end of the inner arc frame 1 and the outer arc frame 4, and the frame support 6 is connected to the inner arc frame 1 and the outer arc frame 4 by connecting bolts 7. Then the first pressure test cover plate 10 is fixed to the frame support 6 by connecting bolts 7 respectively. The first pressure test cover plate 10 is a horizontal bar and a vertical bar. One side of the horizontal bar is connected to the connecting bolt 7, and the bottom end of the horizontal bar on the other side is used to press the plug 11, and the vertical bar is used to support the horizontal bar so that the height of the horizontal bar and the two ends of the frame support 6 are in the same horizontal plane, which is convenient for connection with the connecting bolts 7. The channel 9 of the frame support 6 is opened below the first pressure test cover plate 10, and the inside of the channel 9 is connected to the plug 11. The plug 11 is used to seal the channel 9 to prevent water from flowing out of the channel 9 during the pressure test, causing errors in the pressure test.
[0043] The first pressure test cover plate 10 can be applied to universal pressure test structures with various groove widths and water hole center distances, which reduces costs and reduces the types of tooling. The pressure test cover plate is changed to a half-piece type, which can be adjusted according to different groove widths. A plug 11 for sealing the water hole is added, and the plug 11 is used as a handle for easy disassembly and assembly. The plug 11 of the first pressure test cover plate 10 is machined at a hole position platform, which can be used to observe whether there is water leakage.
[0044] The sealing ring 8 on the outer cylindrical surface of the plug 11 is used to seal the channel 9 to prevent leakage between the plug 11 and the channel 9, which would cause the cooling water to flow out.
[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A universal pressure testing tool suitable for waterway pressure testing of various continuous casting sectors, characterized by: The invention comprises an inner arc frame (1) and an outer arc frame (4), wherein frame supports (6) are provided at opposite ends of the inner arc frame (1) and the outer arc frame (4), and connecting bolts (7) are provided between the frame supports (6) and the inner arc frame (1) and the outer arc frame (4); A first pressure test cover plate (10) is provided on both sides of the top of the frame support (6), and a through hole is provided at the top of the first pressure test cover plate (10), and the interior of the through hole is connected to the connecting bolt (7); A channel (9) is symmetrically provided on the end surface of the frame support (6), and one end of the channel (9) is connected to a plug (11).
2. The universal pressure testing tool suitable for waterway pressure testing of various continuous casting sectors according to claim 1, characterized in that: The outer circumferential surface of the plug (11) is provided with a groove, and a sealing ring (8) is clamped inside the groove.
3. The universal pressure testing tool suitable for waterway pressure testing of various continuous casting sectors according to claim 2, characterized in that: The sealing ring (8) is located between the plug (11) and the channel (9).
4. The universal pressure testing tool suitable for waterway pressure testing of various continuous casting sectors according to claim 1, characterized in that: The inner arc frame (1) and the outer arc frame (4) are connected with a pipe (5), and the pipe (5) is communicated with a channel (9).
5. The universal pressure testing tool suitable for waterway pressure testing of various continuous casting sectors according to claim 1, characterized in that: The plug (11) is located at the bottom end of one side of the frame support (6).