Stainless steel pipeline system vibration fatigue detection device

Abstract

The utility model relates to the technical field of pipeline fatigue detection, in particular to a stainless steel pipeline system vibration fatigue detection device which comprises a table body, a rotating assembly and a fastening assembly, the rotating assembly and the fastening assembly are arranged in the table body, and the table body comprises a bottom frame, sliding rods arranged at the four corners of the top end of the bottom frame, a movable plate and a top plate, the rotating assembly comprises a driving motor fixed in the bottom frame and a rotating disc fixedly connected with the output end of the driving motor, the fastening assembly is fixed to the top end of the rotating disc, the fastening assembly comprises a positioning plate, a pipe clamp fixed to one side of the positioning plate and a movable clamp fixed to the pipe clamp, and the movable clamp is fixedly connected with the pipe clamp through a movable frame. Due to the fact that the size of the pipe clamp is larger than the internal size of the movable frame, when the pipe clamp and the movable frame are structurally fixed, the pipe clamp and the movable frame can be in full contact with the pipe clamp with the small size firstly and then make contact with the inner side wall of the movable clamp with the large size, fixed clamping is achieved, the device is suitable for pipeline structures with different inner diameters, and the use range and functionality of the device are expanded.

Description

Technical Field

[0001] This utility model relates to the field of pipeline fatigue detection technology, specifically to a vibration fatigue detection device for stainless steel pipeline systems. Background Technology

[0002] Stainless steel piping systems are widely used in industry, construction, and other fields, and their safe and stable operation is crucial. Vibration fatigue can easily lead to pipeline failure, making accurate detection of vibration fatigue conditions of great significance. The performance of the detection device directly affects the test results. Existing stainless steel pipeline vibration fatigue testing devices generally consist of a vibration excitation system, a data acquisition system, and a pipeline fixing and clamping system. The vibration excitation simulates the actual vibration load on the pipeline, the data acquisition system is responsible for collecting and analyzing the pipeline vibration response signal, and the pipeline fixing and clamping system ensures pipeline stability during testing and allows for effective vibration transmission.

[0003] In practical applications, stainless steel pipes vary greatly in diameter, wall thickness, and material properties. Different pipe diameters require clamping components with different inner diameters to prevent slippage and loosening during testing. For example, pipe diameters in the chemical industry range from tens of millimeters to several meters, placing high demands on the adaptability of the clamping system.

[0004] Complex shapes: In addition to circular pipes, there are also non-circular cross-section pipes such as square and elliptical pipes. Traditional circular pipe clamping methods are difficult to apply to these special shapes. For example, irregularly shaped pipes used in building decoration require customized clamping structures. Utility Model Content

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a vibration fatigue detection device for stainless steel pipeline systems, which can effectively solve the problems in the existing technology.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] This utility model provides a vibration fatigue testing device for a stainless steel pipeline system, including a platform and a rotating assembly and a fastening assembly disposed within the platform. The platform includes a base frame, sliding rods disposed at the four corners of the top of the base frame, and a movable plate and a top plate disposed within the sliding rods. The rotating assembly includes a drive motor fixed in the base frame and a turntable connected and fixed to the output end of the drive motor. The fastening assembly is fixed to the top of the turntable and includes a positioning plate, a pipe clamp fixed to one side of the positioning plate, and a movable clamp fixed to the pipe clamp. A limit assembly is fixed inside the movable plate. The limit assembly includes a side plate and a hydraulic cylinder fixed to the top of the side plate. The bottom output end of the hydraulic cylinder is fixedly connected to a moving block. Both ends of the moving block are connected and fixed to side rods via pins. The other ends of the two side rods are connected and fixed to deflection rods via pins. The bottom end of the side rod is fixedly connected to a clamping block. A hydraulic rod is fixed to the top of the top plate, and the bottom output end of the hydraulic rod is fixedly connected to the top of the movable plate.

[0010] Furthermore, two sets of hydraulic rods are symmetrically arranged, and the movable plate is movably sleeved on the outside of the slide rod.

[0011] Furthermore, the side plate is an L-shaped plate structure, and the side plate is fixed to the bottom end of the movable plate. The middle part of the deflection rods on both sides is sleeved and connected to the protrusion on the side plate through a pin.

[0012] Furthermore, the inner walls of the clamping blocks on both sides are arc-shaped structures, and the bottom of the deflection rod is fixedly connected to the clamping blocks by bolts.

[0013] Furthermore, the positioning plate has multiple sets of circular holes in the middle, and the pipe clamp is fixedly connected to the positioning plate by bolts and nuts. Both the pipe clamp and the movable clamp are hollow half-tube structures, and the pipe clamp and the movable clamp are fixedly connected by bolts and nuts.

[0014] Furthermore, the inner diameter of the movable clamp is half the inner diameter of the pipe clamp.

[0015] Beneficial effects

[0016] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0017] This utility model, through the setting of a limiting component and a fastening component structure at the bottom, allows the user to fix the top of the pipe to the limiting component and the bottom to the fastening component. Activating the drive motor structure at the bottom can drive the turntable of the top pipe to rotate, thereby causing the pipe to rotate. During rotation, the pipe bends and vibrates, allowing for the determination of its structural strength. After a specified rotation time, the drive motor can reverse the direction, causing the pipe to bend again at the same point. After multiple tests, the fatigue strength of the pipe can be calculated based on the bending force and test time, facilitating quick use and calculation.

[0018] In this device, the user can move the bottom movable plate up and down on the sliding rod via a hydraulic rod structure, suitable for pipes of different lengths. The hydraulic cylinder can move the moving block up and down and deflect the side rods on both sides. The top of the deflecting rod can move inward, and because the middle is fixed to the protrusion on the side plate by a pin, the bottom of the deflecting rod deflects towards the center, thus clamping the top of the pipe. The hydraulic cylinder operates in the opposite direction to release the pipe. The positioning plate structure at the bottom can be replaced with a pipe clamp structure that is adapted to the pipe size and fixedly connected to the round hole on the positioning plate. Then, it is fixedly connected to the pipe clamp through the movable frame. Since the size of the pipe clamp is larger than the internal size of the movable frame, when fixing the two structures, it can first make full contact with the smaller pipe clamp and then contact the inner wall of the larger movable clamp to achieve a fixed clamping. It is suitable for pipe structures with different inner diameters, expanding the application range and functionality of this device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a front view of the structure of this utility model;

[0022] Figure 3 This is an exploded view of the limiting component in this utility model;

[0023] Figure 4 This is a schematic diagram of the fastening component in this utility model.

[0024] The labels in the diagram represent: 1. Platform; 11. Base frame; 12. Slide rod; 13. Movable plate; 14. Top plate; 2. Rotating assembly; 21. Drive motor; 22. Turntable; 3. Fastening assembly; 31. Positioning plate; 32. Pipe clamp; 33. Movable clamp; 4. Limiting assembly; 41. Side plate; 42. Hydraulic cylinder; 43. Moving block; 44. Side rod; 45. Deflection rod; 46. Pin; 47. Clamping block; 5. Hydraulic rod. Detailed Implementation

[0025] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] Example: A vibration fatigue testing device for stainless steel pipeline systems, as shown in the attached document. Figure 1 - Appendix Figure 4 The system includes a platform 1, a rotating assembly 2, and a fastening assembly 3 disposed within the platform 1. The platform 1 includes a base frame 11, slide rods 12 located at the four corners of the top of the base frame 11, and movable plates 13 and a top plate 14 disposed within the slide rods 12. The rotating assembly 2 includes a drive motor 21 fixed to the base frame 11 and a turntable 22 connected and fixed to the output end of the drive motor 21. The fastening assembly 3 is fixed to the top of the turntable 22 and includes a positioning plate 31, a pipe clamp 32 fixed to one side of the positioning plate 31, and a movable clamp 33 fixed to the pipe clamp 32. A limiting component 4 is fixed inside the movable plate 13. The limiting component 4 includes a side plate 41 and a hydraulic cylinder 42 fixed to the top of the side plate 41. The bottom output end of the hydraulic cylinder 42 is fixedly connected to the moving block 43. Both ends of the moving block 43 are connected and fixed to the side rods 44 by pins 46. The other ends of the two side rods 44 are connected and fixed to the deflection rods 45 by pins 46. The bottom end of the side rods 44 is fixedly connected to the clamping block 47. A hydraulic rod 5 is fixed to the top of the top plate 14. The bottom output end of the hydraulic rod 5 is fixedly connected to the top of the movable plate 13.

[0028] Two sets of hydraulic rods 5 are symmetrically arranged, and the movable plate 13 is movably sleeved on the outside of the slide rod 12. Through the provided limiting component 4 and the bottom fastening component 3, the user can fix the top of the pipe to the limiting component 4 and the bottom to the fastening component 3. Activating the bottom drive motor 21 can drive the turntable 22 of the jacking pipe to rotate, thereby causing the pipe to rotate. During rotation, the pipe bends and vibrates, allowing for the determination of its structural strength. After a specified rotation time, the drive motor 21 can reverse the direction, causing the pipe to bend again at the same point. After multiple tests, the fatigue strength of the pipe can be calculated based on the bending force and test time, facilitating rapid use and calculation.

[0029] The side plate 41 has an L-shaped structure and is fixed to the bottom of the movable plate 13. The middle part of the deflection rods 45 on both sides is sleeved and connected to the protrusion on the side plate 41 through the pin 46. The inner walls of the clamping blocks 47 on both sides are arc-shaped structures. The bottom of the deflection rods 45 is fixedly connected to the clamping blocks 47 through bolts. In this device, through the hydraulic rod 5 structure, the user can drive the movable plate 13 at the bottom to move up and down on the slide rod 12, which is suitable for pipes of different lengths. The hydraulic cylinder 42 can drive the moving block 43 to move up and down and drive the side rods 44 on both sides to deflect. The top of the deflection rod 45 can move inward. Since the middle part is sleeved and fixed to the protrusion on the side plate 41 through the pin 46, the bottom of the deflection rod 45 deflects towards the middle and clamps the top of the pipe. The hydraulic cylinder 42 operates in the opposite direction to release the pipe.

[0030] The positioning plate 31 has multiple sets of circular holes in its center, and the pipe clamp 32 is fixedly connected to the positioning plate 31 by bolts and nuts. Both the pipe clamp 32 and the movable clamp 33 are hollow half-tube structures, and the pipe clamp 32 and the movable clamp 33 are fixedly connected by bolts and nuts. The inner diameter of the movable clamp 33 is half the inner diameter of the pipe clamp 32. The positioning plate 31 at the bottom can be replaced with a pipe clamp 32 structure that is compatible with the size of the pipe. It is fixedly connected to the circular holes on the positioning plate 31, and then fixedly connected to the pipe clamp 32 through the movable frame. Since the size of the pipe clamp 32 is larger than the internal size of the movable frame, when the two structures are fixed, it can first make full contact with the smaller pipe clamp 32, and then contact the inner wall of the larger movable clamp 33 to achieve fixed locking. It is suitable for pipe structures with different inner diameters, expanding the application range and functionality of this device.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vibration fatigue testing device for a stainless steel pipeline system, characterized in that, The system includes a platform (1) and a rotating assembly (2) and a fastening assembly (3) disposed within the platform (1). The platform (1) includes a base frame (11), slide rods (12) disposed at the four corners of the top of the base frame (11), and a movable plate (13) and a top plate (14) disposed within the slide rods (12). The rotating assembly (2) includes a drive motor (21) fixed in the base frame (11) and a turntable (22) fixed to the output end of the drive motor (21). The fastening assembly (3) is fixed to the top of the turntable (22). The fastening assembly (3) includes a positioning plate (31), a pipe clamp (32) fixed to one side of the positioning plate (31), and a movable clamp (33) fixed to the pipe clamp (32). 3) A limiting component (4) is fixed inside the movable plate (13). The limiting component (4) includes a side plate (41) and a hydraulic cylinder (42) fixed to the top of the side plate (41). The bottom output end of the hydraulic cylinder (42) is fixedly connected to the moving block (43). Both ends of the moving block (43) are connected and fixed to the side rod (44) through pins (46). The other ends of the two side rods (44) are connected and fixed to the deflection rod (45) through pins (46). The bottom end of the side rod (44) is fixedly connected to the clamping block (47). A hydraulic rod (5) is fixed to the top of the top plate (14). The bottom output end of the hydraulic rod (5) is fixedly connected to the top of the movable plate (13).

2. The vibration fatigue testing device for a stainless steel pipeline system according to claim 1, characterized in that, Two sets of hydraulic rods (5) are symmetrically arranged, and the movable plate (13) is movably sleeved on the outside of the slide rod (12).

3. The vibration fatigue testing device for a stainless steel pipeline system according to claim 1, characterized in that, The side plate (41) is an L-shaped plate structure, and the side plate (41) is fixed to the bottom end of the movable plate (13). The middle part of the deflection rods (45) on both sides is sleeved and connected to the protrusion on the side plate (41) through the pin (46).

4. The vibration fatigue testing device for a stainless steel pipeline system according to claim 1, characterized in that, The inner walls of the clamping blocks (47) on both sides are arc-shaped, and the bottom of the deflection rod (45) is fixedly connected to the clamping blocks (47) by bolts.

5. The vibration fatigue testing device for a stainless steel pipeline system according to claim 4, characterized in that, The positioning plate (31) has multiple sets of round holes in the middle, and the pipe clamp (32) is fixedly connected to the positioning plate (31) by bolts and nuts. The pipe clamp (32) and the movable clamp (33) are both half-structures of hollow round tubes, and the pipe clamp (32) and the movable clamp (33) are fixedly connected by bolts and nuts.

6. The vibration fatigue testing device for a stainless steel pipeline system according to claim 5, characterized in that, The inner diameter of the movable clamp (33) is half the inner diameter of the pipe clamp (32).

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