Metallographic detection device for steam pipeline of power station
The pipe fixing mechanism in the electric station steam pipe gold detection device addresses the issue of unstable pipe fixation during polishing, ensuring uniform polishing and improved safety by using a liquid pressure cylinder and adjustable rods to secure the pipe, allowing for continuous and efficient polishing.
Patent Information
- Application Number
- CN202422195999.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing metallographic detection device of steam pipes in power stations cannot effectively clamp the fixed pipe during the polishing process, causing the pipe to move, affecting the polishing quality and possibly damaging the pipe integrity.
The clamping assembly driven by hydraulic cylinder and cylinder is adopted. Through the coordinated movement of push blocks, connecting rods, adjusting rods and sliding rods, the stable clamping and fixing of the pipes is achieved, and the matching of the slide rails and the movable seats ensures the precise movement and uniform polishing of the polishing wheel.
The stable clamping and fixing of the pipe is achieved, ensuring the safety of the polishing process and polishing quality, improving the polishing efficiency and uniformity, and avoiding the occurrence of pipe scratches or indentations.
Smart Images
Figure CN223107613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of on-site metallographic inspection, in particular to a metallographic inspection device for power station steam pipelines. Background Art
[0002] Power station steam pipelines are pipeline systems used to transport high-temperature and high-pressure steam in thermal power stations. These pipelines are usually made of special materials, such as alloy steel or other heat-resistant materials, and can withstand high-temperature and high-pressure working environments. Steam pipelines working in high-temperature and high-pressure environments for a long time will develop fatigue cracks, corrosion or other damages. Metallographic inspection can reveal the microscopic characteristics of these damages and help evaluate the degree of pipeline damage.
[0003] The currently used metallographic inspection device for power station steam pipelines automatically controls the operation of a polishing motor, a pneumatic telescopic rod, a linear motor and a stepping motor through a controller to achieve full-automatic rough grinding and polishing of specimens during metallographic inspection, eliminating the trouble of traditional manual operation and protecting the personal safety of testers well. However, when using this method for inspection, the pipeline cannot be clamped and fixed. The unfixed pipeline will move during the polishing process, resulting in uneven polishing and affecting the polishing quality. During the polishing process, if the pipeline moves, it will cause scratches or indentations on the pipeline surface by the polishing head, damaging the integrity of the pipeline. Content of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a metallographic inspection device for power station steam pipelines, aiming to improve the problem that the existing metallographic inspection device for power station steam pipelines cannot clamp and fix the pipeline.
[0005] To achieve the above object, the utility model provides the following technical solution: A metallographic inspection device for power station steam pipelines, including a base and a fixed seat. A hydraulic cylinder is fixedly connected inside the fixed seat. The output end of the hydraulic cylinder is fixedly connected with a first push block. One end of a connecting rod is fixedly connected to both sides of the first push block. The other end of the connecting rod is fixedly connected with a second push block. A fixed frame is fixedly connected inside the fixed seat. One end of a first sliding rod is fixedly connected to both sides inside the fixed seat. The opposite ends of multiple first sliding rods are fixedly connected with positioning plates. One end of a second sliding rod is fixedly connected to both sides in the middle of the fixed seat. The other end of the second sliding rod is fixedly connected with the fixed frame. A sliding rod is slidably connected to the outside of multiple first sliding rods and second sliding rods. One end of an adjusting rod is rotatably connected to both outer sides of the first push block and the second push block. The other end of the adjusting rod is rotatably connected to the sliding rod. A clamping assembly is fixedly connected to the upper part of multiple sliding rods. The clamping assembly is used to fix the pipeline.
[0006] Further, a first cylinder is fixedly connected to the outside of the base. The output end of the first cylinder is fixedly connected to a push plate. On both sides inside the base, limiting columns are fixedly connected. On one side of the outside of the limiting columns, a first movable block is slidably connected. On the other side of the outside of the limiting columns, a second movable block is slidably connected. At both sides inside the first movable block, one ends of first movable support rods are rotatably connected. At both sides inside the second movable block, one ends of second movable support rods are rotatably connected. The other end of the first movable support rod is rotatably connected to the other end of the second movable support rod. The second movable block is fixedly connected to the bottom of the push plate, and a fixed seat is fixedly connected to the upper part of the push plate.
[0007] Further, the clamping assembly includes connecting plates. A plurality of the connecting plates are fixedly connected to the upper part of the sliding rod. On the opposite sides of the plurality of connecting plates, clamping members are fixedly connected.
[0008] Further, movable plates are fixedly connected to both sides of the connecting plate. The movable plates are slidably connected to the outside of the guiding rods. A plurality of the guiding rods are fixedly connected inside the fixed seat.
[0009] Further, a buffer spring is sleeved on the outside of the guiding rod. One end of the buffer spring is fixedly connected inside the fixed seat, and the other end of the buffer spring is fixedly connected to the movable plate.
[0010] Further, a compression spring is sleeved on the outside of the limiting column. One end of the compression spring is fixedly connected to the first movable block, and the other end of the compression spring is fixedly connected to the second movable block.
[0011] Further, limiting blocks are fixedly connected to both sides of the bottom of the fixed seat. Limiting grooves are formed on both sides of the upper surface of the base. The limiting blocks are slidably connected inside the limiting grooves.
[0012] Further, a support frame is fixedly connected to the upper part of the base. A second cylinder is fixedly connected to the upper part of the support frame. The output end of the second cylinder is fixedly connected to a moving plate.
[0013] Further, a positioning frame is fixedly connected to the bottom of the moving plate. A motor is fixedly connected to the upper part of the positioning frame. The output end of the motor is fixedly connected to a polishing wheel.
[0014] Further, sliding rails are fixedly connected to both sides inside the support frame. Movable seats are fixedly connected to both sides of the moving plate. The movable seats are slidably connected to the outside of the sliding rails.
[0015] The utility model has the following beneficial effects:
[0016] 1. In the present utility model, by starting the hydraulic cylinder, the first push block and the second push block are driven to move synchronously, the adjusting rod rotates, the sliding rod slides along the sliding rod, and the connecting plate and the movable plate are pushed to move along the guiding rod. When the connecting plate moves, the clamping member approaches the fixed pipe, effectively fixing the pipe, ensuring the stability of the pipe, and improving the operation safety.
[0017] 2. In the present utility model, by starting the first cylinder to drive the push plate to move, the push plate drives the second movable block to slide, and then the second movable support rod and the first movable support rod rotate, and the first movable block also slides. The movement of the push plate causes the fixed seat to move, and the movement of the fixed seat drives the pipe to move back and forth under the polishing wheel, realizing continuous polishing, ensuring uniform treatment of the pipe surface, and improving the polishing efficiency. Brief Description of the Drawings
[0018] Figure 1 is the front view of a metallographic inspection device for power station steam pipes proposed by the present utility model;
[0019] Figure 2 is the top view of a metallographic inspection device for power station steam pipes proposed by the present utility model;
[0020] Figure 3 is the schematic internal structure diagram of the fixed seat of a metallographic inspection device for power station steam pipes proposed by the present utility model;
[0021] Figure 4 is the schematic internal structure diagram of the base of a metallographic inspection device for power station steam pipes proposed by the present utility model;
[0022] Figure 5 is Figure 2 the enlarged view at A in
[0023] Figure 6 is Figure 3 the enlarged view at B in
[0024] Legend Explanation:
[0025] 1. Base; 2. First cylinder; 3. Push plate; 4. Limit column; 5. First movable block; 6. Second movable block; 7. First movable support rod; 8. Second movable support rod; 9. Compression spring; 10. Fixed seat; 11. Limit block; 12. Limit groove; 13. Hydraulic cylinder; 14. Fixed frame; 15. First push block; 16. Connecting rod; 17. Second push block; 18. Adjusting rod; 19. First sliding rod; 20. Positioning plate; 21. Sliding rod; 22. Connecting plate; 23. Clamping member; 24. Movable plate; 25. Guiding rod; 26. Buffer spring; 27. Support frame; 28. Second cylinder; 29. Second sliding rod; 30. Moving plate; 31. Movable seat; 32. Slide rail; 33. Positioning frame; 34. Motor; 35. Polishing wheel. Detailed Embodiment
[0026] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] Referring to Figure 3 、 Figure 5 and Figure 6 , an embodiment provided by the present invention: a metallographic detection device for a power station steam pipeline, including a base 1 and a fixed seat 10. A hydraulic cylinder 13 is fixedly connected inside the fixed seat 10, and the fixed seat 10 is used to fix the hydraulic cylinder 13. The output end of the hydraulic cylinder 13 is fixedly connected to a first push block 15. One end of a connecting rod 16 is fixedly connected to both sides of the first push block 15. The first connecting rod 16 is used to connect the first push block 15 and the second push block 17 so that they can move synchronously. The other end of the connecting rod 16 is fixedly connected to a second push block 17. A fixing frame 14 is fixedly connected inside the fixed seat 10. One ends of a plurality of first sliding rods 19 are fixedly connected to both sides inside the fixed seat 10. The first sliding rods 19 are used to limit the sliding rod 21. The opposite ends of a plurality of first sliding rods 19 are fixedly connected to a positioning plate 20. One ends of a second sliding rod 29 are fixedly connected to both sides in the middle of the fixed seat 10. The other end of the second sliding rod 29 is fixedly connected to the fixing frame 14. The sliding rod 21 is slidably connected to the outside of a plurality of first sliding rods 19 and the second sliding rod 29. The second sliding rod 29 is used to limit the sliding rod 21. One ends of an adjusting rod 18 are rotatably connected to both outer sides of the first push block 15 and the second push block 17. The adjusting rod 18 is used to drive the sliding rod 21 to move. The other end of the adjusting rod 18 is rotatably connected to the sliding rod 21. Clamping assemblies are fixedly connected to the upper parts of a plurality of sliding rods 21. The clamping assemblies are used to fix the pipeline. The clamping assembly includes a connecting plate 22. A plurality of connecting plates 22 are fixedly connected to the upper parts of the sliding rods 21. Clamping members 23 are fixedly connected to the opposite sides of a plurality of connecting plates 22. The clamping members 23 are used to clamp and fix the pipeline. Movable plates 24 are fixedly connected to both sides of the connecting plate 22. The movable plates 24 are slidably connected to the outside of the guide rods 25. A plurality of guide rods 25 are fixedly connected inside the fixed seat 10. A buffer spring 26 is sleeved on the outside of the guide rod 25. The buffer spring 26 is used to buffer the clamping member 23. One end of the buffer spring 26 is fixedly connected inside the fixed seat 10, and the other end of the buffer spring 26 is fixedly connected to the movable plate 24.
[0028] Place the pipeline to be detected on the upper part of the fixed seat 10 to ensure that the pipeline is in the correct position. Next, start the hydraulic cylinder 13. The output end of the hydraulic cylinder 13 starts to work, driving the first push block 15 to move along a predetermined path. During the movement of the first push block 15, through a mechanical linkage mechanism, it drives the connecting rod 16 to move accordingly. The movement of the connecting rod 16 further drives the two second push blocks 17 to move synchronously to ensure the coordination of actions. When the first push block 15 and the second push blocks 17 start to move, they drive a plurality of adjusting rods 18 to rotate simultaneously. The rotation of the adjusting rods 18 drives the sliding rods 21 on both sides to slide outside the first sliding rod 19, while the sliding rods 21 in the middle slide outside the second sliding rod 29. The sliding actions of the plurality of sliding rods 21 work together to drive the connecting plate 22 to move along a specific trajectory. The movement of the connecting plate 22 further drives the movable plate 24 to slide outside the guide rod 25. The sliding action of the guide rod 25 stretches or compresses the buffer spring 26. The buffer spring 26 plays a certain buffering role in this case to ensure the stability of the entire mechanical system and reduce impacts. When the connecting plate 22 continues to move, it drives a plurality of clamping members 23 to approach each other, and these clamping members 23 tightly fix the pipeline on the upper part of the fixed seat 10.
[0029] Refer to Figure 2 and Figure 4 , a first cylinder 2 is fixedly connected to the outside of the base 1. The output end of the first cylinder 2 is fixedly connected to a push plate 3. Both sides inside the base 1 are fixedly connected with limit posts 4. The limit posts 4 are used to limit the first movable block 5 and the second movable block 6. One side of the outside of the limit post 4 is slidably connected with the first movable block 5, and the other side of the outside of the limit post 4 is slidably connected with the second movable block 6. One end of a first movable support rod 7 is rotatably connected to both sides inside the first movable block 5, and one end of a second movable support rod 8 is rotatably connected to both sides inside the second movable block 6. The other end of the first movable support rod 7 is rotatably connected to the other end of the second movable support rod 8. The bottom of the push plate 3 is fixedly connected with the second movable block 6, the upper part of the push plate 3 is fixedly connected with the fixed seat 10. A compression spring 9 is sleeved on the outside of the limit post 4. One end of the compression spring 9 is fixedly connected with the first movable block 5, and the other end of the compression spring 9 is fixedly connected with the second movable block 6. Both sides of the bottom of the fixed seat 10 are fixedly connected with limit blocks 11. Limit grooves 12 are opened on both sides of the upper surface of the base 1. The limit grooves 12 are used to limit the fixed seat 10, improving the stability of the fixed seat 10 during movement. The limit blocks 11 are slidably connected inside the limit grooves 12.
[0030] During the polishing operation, it is first necessary to start cylinder 1 (2). The output end of cylinder 1 (2) will drive the push plate 3 to move. During the movement of the push plate 3, it will drive the movable block 2 (6) to slide along the outside of the limit post 4. During the sliding of the movable block 2 (6), it will further drive the movable support rod 2 (8) to rotate. The rotation of the movable support rod 2 (8) will drive the movable support rod 1 (7) to rotate. During the rotation of the movable support rod 1 (7), it will drive the movable block 1 (5) to slide along the outside of the limit post 4. When the movable block 1 (5) and the movable block 2 (6) move simultaneously, they will squeeze the compression spring 9. Thus, under the combined action of the movable block 1 (5) and the movable block 2 (6), the stability of the push plate 3 during movement is improved. During the movement of the push plate 3, it will drive the fixed seat 10 to move. During the movement of the fixed seat 10, it will drive the limit block 11 to slide inside the limit groove 12. The limit groove 12 plays a limiting role on the fixed seat 10 to ensure the accuracy of its movement. During the movement of the fixed seat 10, it will drive the pipeline to move back and forth under the polishing wheel 35.
[0031] Refer to Figure 1 and Figure 2 As shown in FIGS. Figure 1 and Figure 2 , a support frame 27 is fixedly connected to the upper part of the base 1. A cylinder 28 is fixedly connected to the upper part of the support frame 27. The output end of the cylinder 28 is fixedly connected to a moving plate 30. A positioning frame 33 is fixedly connected to the bottom of the moving plate 30. A motor 34 is fixedly connected to the upper part of the positioning frame 33. The output end of the motor 34 is fixedly connected to a polishing wheel 35. Slide rails 32 are fixedly connected to both sides inside the support frame 27. Movable seats 31 are fixedly connected to both sides of the moving plate 30. The movable seats 31 are slidably connected to the outside of the slide rails 32.
[0032] Start the cylinder 28. The output end of the cylinder 28 drives the moving plate 30 to move downward through a series of mechanical transmission devices. During the movement of the moving plate 30, through the transmission mechanism connected thereto, it drives the movable seat 31 to smoothly slide on the outside of the slide rail 32. Under the guidance of the slide rail 32, the movable seat 31 ensures that the movement trajectory of the moving plate 30 is accurate. With the movement of the movable seat 31, the moving plate 30 can move in the up and down directions, thereby driving the motor 34 and the polishing wheel 35 to perform precise height adjustment. After starting the motor 34, the output end of the motor 34 transmits power to the polishing wheel 35 through a transmission shaft. The polishing wheel 35 rotates at a high speed under the drive of the motor 34. Through the contact between the polishing wheel 35 and the surface of the pipeline, fine polishing treatment is performed on the pipeline to achieve the required surface finish and precision requirements.
[0033] Working principle: First, place the pipeline to be detected on the upper part of the fixed seat 10. Start the hydraulic cylinder 13. The output end of the hydraulic cylinder 13 drives the first push block 15 to move. When the first push block 15 moves, it drives the connecting rod 16 to move. When the connecting rod 16 moves, it drives the two second push blocks 17 to move synchronously. When the first push block 15 and the second push blocks 17 move, they drive multiple adjusting rods 18 to rotate simultaneously. When the adjusting rods 18 rotate, they drive the sliding rods 21 on both sides to slide outside the first slide rod 19, and the sliding rod 21 in the middle slides outside the second slide rod 29. When the multiple sliding rods 21 slide, they drive the connecting plate 22 to move. The movement of the connecting plate 22 drives the movable plate 24 to slide outside the guide rod 25. When the guide rod 25 slides, it stretches or compresses the buffer spring 26. The buffer spring 26 plays a certain buffering role for the connecting plate 22. When the connecting plate 22 moves, it drives multiple clamping members 23 to approach each other, tightly fixing the pipeline on the upper part of the fixed seat 10, achieving effective clamping and fixing of the pipeline, preventing it from shifting during the polishing process, ensuring the stability of the polishing operation, improving the safety of the workplace. Start the second cylinder 28. The output end of the second cylinder 28 pushes the moving plate 30 to move downward. When the moving plate 30 moves, it drives the movable seat 31 to slide outside the slide rail 32. Under the action of the movable seat 31, the moving plate 30 moves up and down, driving the motor 34 and the polishing wheel 35 to adjust the height. Start the motor 34. The output end of the motor 34 drives the polishing wheel 35 to rotate, and the pipeline is polished by the polishing wheel 35. During the polishing process, start the first cylinder 2. The output end of the first cylinder 2 drives the push plate 3 to move. When the push plate 3 moves, it drives the second movable block 6 to slide outside the limit post 4. When the second movable block 6 slides, it drives the second movable support rod 8 to rotate. The rotation of the second movable support rod 8 drives the first movable support rod 7 to rotate. When the first movable support rod 7 rotates, it drives the first movable block 5 to slide outside the limit post 4. When the first movable block 5 and the second movable block 6 move, they compress the compression spring 9. Under the action of the first movable block 5 and the second movable block 6, the stability of the push plate 3 during movement is improved. When the push plate 3 moves, it drives the fixed seat 10 to move. The movement of the fixed seat 10 drives the limit block 11 to slide inside the limit groove 12. The limit groove 12 plays a limiting role for the fixed seat 10. When the fixed seat 10 moves, it drives the pipeline to move back and forth under the polishing wheel 35, achieving convenient driving of the pipeline to move back and forth, continuously polishing the surface of the pipeline, ensuring that the surface of the pipeline is evenly polished, and greatly improving the polishing efficiency.
[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A metallographic inspection device for power station steam pipelines, comprising a base (1) and a fixing base (10), characterized in that: Inside the fixed seat (10), a hydraulic cylinder (13) is fixedly connected. The output end of the hydraulic cylinder (13) is fixedly connected to a first push block (15). One end of a connecting rod (16) is fixedly connected to both sides of the first push block (15). The other end of the connecting rod (16) is fixedly connected to a second push block (17). Inside the fixed seat (10), a fixed frame (14) is fixedly connected. On both sides inside the fixed seat (10), a first sliding rod (19) is fixedly connected. The opposite ends of multiple first sliding rods (19) are fixedly connected to a positioning plate (20). One end of a second sliding rod (29) is fixedly connected to both sides in the middle of the fixed seat (10). The other end of the second sliding rod (29) is fixedly connected to the fixed frame (14). A sliding rod (21) is slidably connected to the outside of multiple first sliding rods (19) and second sliding rods (29). One end of an adjusting rod (18) is rotatably connected to both outer sides of the first push block (15) and the second push block (17). The other end of the adjusting rod (18) is rotatably connected to the sliding rod (21). A clamping assembly is fixedly connected to the upper part of multiple sliding rods (21). The clamping assembly is used to fix the pipeline.
2. The metallographic inspection device for a power station steam pipeline according to claim 1, characterized in that: Outside the base (1), a first cylinder (2) is fixedly connected. The output end of the first cylinder (2) is fixedly connected to a push plate (3). On both sides inside the base (1), a limiting post (4) is fixedly connected. A first movable block (5) is slidably connected to one outer side of the limiting post (4). A second movable block (6) is slidably connected to the other outer side of the limiting post (4). One end of a first movable support rod (7) is rotatably connected to both sides inside the first movable block (5). One end of a second movable support rod (8) is rotatably connected to both sides inside the second movable block (6). The other end of the first movable support rod (7) is rotatably connected to the other end of the second movable support rod (8). The bottom of the push plate (3) is fixedly connected to the second movable block (6). The upper part of the push plate (3) is fixedly connected to the fixed seat (10).
3. The metallographic inspection device for power station steam pipelines according to claim 1, wherein: The clamping assembly includes a connecting plate (22). Multiple connecting plates (22) are fixedly connected to the upper part of the sliding rod (21). A clamping piece (23) is fixedly connected to the opposite side of multiple connecting plates (22).
4. A metallographic inspection device for a power station steam pipeline according to claim 3, characterized in that: On both sides of the connecting plate (22), a movable plate (24) is fixedly connected. The movable plate (24) is slidably connected to the outside of a guide rod (25). Multiple guide rods (25) are fixedly connected inside the fixed seat (10).
5. The metallographic inspection device for a power station steam pipeline according to claim 4, characterized in that: A buffer spring (26) is sleeved on the outside of the guide rod (25). One end of the buffer spring (26) is fixedly connected inside the fixed seat (10). The other end of the buffer spring (26) is fixedly connected to the movable plate (24).
6. The austenitic phase detection device for power station steam pipelines according to claim 2, wherein: A compression spring (9) is sleeved on the outside of the limiting post (4). One end of the compression spring (9) is fixedly connected to the first movable block (5). The other end of the compression spring (9) is fixedly connected to the second movable block (6).
7. An in-service inspection device for metallography of power station steam pipelines according to claim 2, characterized in that: Both sides of the bottom of the fixed seat (10) are fixedly connected with limit blocks (11). Limit grooves (12) are formed on both sides of the upper surface of the base (1), and the limit blocks (11) are slidably connected inside the limit grooves (12).
8. The metallographic inspection device for a power station steam pipeline according to claim 1, characterized in that: A support frame (27) is fixedly connected to the upper part of the base (1). An air cylinder two (28) is fixedly connected to the upper part of the support frame (27), and the output end of the air cylinder two (28) is fixedly connected with a moving plate (30).
9. The metallographic inspection device for a power station steam pipeline according to claim 8, wherein: A positioning frame (33) is fixedly connected to the bottom of the moving plate (30). A motor (34) is fixedly connected to the upper part of the positioning frame (33), and the output end of the motor (34) is fixedly connected with a polishing wheel (35).
10. A metallographic inspection device for a power station steam pipeline according to claim 8, characterized in that: Both sides inside the support frame (27) are fixedly connected with slide rails (32). Both sides of the moving plate (30) are fixedly connected with movable seats (31), and the movable seats (31) are slidably connected to the outside of the slide rails (32).