Defect detection device for pressure vessel

Abstract

The utility model discloses a pressure vessel defect detection device which comprises a detection table, and a detector is fixedly connected to the middle of the top surface of the detection table; a clamping assembly is arranged on the top surface of the detection table, an adjusting assembly is arranged in the detection table, the clamping assembly comprises a mounting shell, arc-shaped battens are symmetrically arranged on the top surface of the mounting shell, rollers are rotatably connected to the bottom ends of the arc-shaped battens, and an adjusting bin is fixedly connected to the top ends of the arc-shaped battens; a supporting column is slidably connected to the top face of the mounting shell in a penetrating mode, a movable block is fixedly connected to the bottom end of the supporting column, and a lifting ball is rotationally connected to the top end of the supporting column. One side of the adjusting bin is fixedly connected with a second electric push rod and a first motor, and the other side of the adjusting bin is rotationally connected with an extrusion ball. And the extrusion ball of which the rotation direction and state can be changed can stably clamp the cylindrical container and perform horizontal movement and fixed-axis turnover on the cylindrical container, so that the alignment of the cylindrical container is more accurate when the cylindrical container is detected.

Description

Technical Field

[0001] This utility model relates to the technical field of weld defect detection tools, specifically a pressure vessel defect detection device. Background Technology

[0002] Pressure vessels are generally constructed by welding a cylindrical base and two ends. For the circumferential welds on the vessel, defect detection is required using an ultrasonic detector. Current side-inspection methods typically involve laying the pressure vessel down and using rollers to roll it, while the ultrasonic detector probe is positioned over the weld for inspection.

[0003] CN221725939U discloses a pressure vessel defect detection device, which includes a circular bracket and a rolling ring. The circular bracket is assembled from an upper arc-shaped bracket and a lower arc-shaped bracket. Both the upper and lower arc-shaped brackets are equipped with multiple rotatable driven rollers, and the lower arc-shaped bracket is also equipped with a driving roller. The driving roller has a first toothed ring, and one end of the driving roller is connected to a drive motor. The rolling ring is located in the circular bracket and rolls with the driven and driving rollers. An annular groove is provided on the outer wall of the rolling ring, and a second toothed ring is provided in the annular groove, meshing with the first toothed ring. An ultrasonic probe is provided on the inner wall of the rolling ring. This device is easy to move and operate, and can accurately detect annular welds on pressure vessels. However, this patent still has the following problems in actual use:

[0004] When the above-mentioned device moves and positions the container, it requires an external crane or the full cooperation of personnel to keep the container suspended in the air so that the ultrasonic probe can be used for inspection. Whether it is crane operation or manual assistance, it requires additional manpower and resources, which is quite inconvenient. When the container is suspended by the crane, it is not fixed and it takes time to recover from shaking. At the same time, it is easy to shake again after it has calmed down, resulting in poor stability in actual operation.

[0005] A pressure vessel defect detection device is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a pressure vessel defect detection device to solve the problem that the aforementioned devices in the background art require an external crane or full-time personnel to assist in moving and aligning the container, ensuring that the container is suspended in the air to facilitate ultrasonic probe inspection. Whether it is crane operation or manual assistance, additional manpower and resources are required, which is inconvenient. Furthermore, when the container is suspended by a crane, it lacks fixation, and it takes time to recover from shaking. Moreover, it is easy to start shaking again after it has calmed down, resulting in poor stability during actual operation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pressure vessel defect detection device, comprising a detection platform, wherein a detection instrument is fixedly connected to the center of the top surface of the detection platform;

[0008] The top surface of the testing platform is symmetrically provided with clamping components on both sides. The testing platform is provided with an adjustment component inside. The clamping component includes a mounting shell. The top of the mounting shell is symmetrically provided with side grooves. The side grooves are provided with arc-shaped plates. The bottom end of the arc-shaped plates is rotatably connected with rollers. The top end of the arc-shaped plates is fixedly connected with an adjustment chamber. The top surface of the mounting shell is slidably connected with a support column. The bottom end of the support column is fixedly connected with a movable block. The top end of the support column is rotatably connected with a lifting ball.

[0009] The movable block has symmetrical curved edges on both sides, and a force-bearing inclined surface at the bottom. An extrusion block is slidably connected to the inner bottom surface of the mounting shell. A first electric push rod is fixedly connected to one side of the mounting shell. A second electric push rod and a first motor are fixedly connected to one side of the adjustment chamber. An extrusion ball is rotatably connected to the other side of the adjustment chamber.

[0010] The output end of the second electric actuator extends into the adjustment chamber and is rotatably connected to a toothed column. The output end of the first motor extends into the adjustment chamber and is fixedly connected to a gear. An arch frame is fixedly connected to the end of the toothed column. A second motor is fixedly connected to the outer side of the arch frame. A rubber wheel is rotatably connected to the inner side of the arch frame, and the rubber wheel is in contact with the extrusion ball.

[0011] Preferably, the gear is slidable while meshing with the tooth column, and the output end of the second motor extends into the arch frame and is fixedly connected to the rubber wheel.

[0012] Preferably, the arc plate is rotatably connected to the mounting shell, a lifting ball is rotatably connected to the top of the support column, and the roller is rotatably connected to the curved edge.

[0013] Preferably, the extrusion block is fitted and connected to the force-bearing inclined surface, and the movable block is slidably installed in the middle of the interior of the mounting shell.

[0014] Preferably, the upper half of the arc plate is located above the mounting shell, and the lower half of the arc plate is located inside the mounting shell.

[0015] Preferably, the adjustment assembly includes a third motor fixed to one side of the testing platform. The output end of the third motor extends into the testing platform and is fixedly connected to a double-ended screw. A threaded sleeve is slidably fitted onto the outer symmetrical thread of the double-ended screw. The top of the threaded sleeve is fixedly connected to the bottom of the mounting shell.

[0016] Preferably, the top surface of the testing platform is symmetrically provided with a sliding groove, the sliding groove is slidably connected to the threaded sleeve, the mounting shell is fitted with the top surface of the testing platform, and the double-ended screw is rotatably connected to the interior of the testing platform.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this pressure vessel defect detection device can stably clamp a cylindrical container, and in the clamping state, it can perform horizontal movement and fixed-axis flipping of the cylindrical container, making the alignment of the cylindrical container more accurate during detection and reducing human intervention. The specific details are as follows:

[0018] 1. The first electric actuator moves the extrusion block horizontally, causing the inclined plane to press the movable block upwards. As the movable block moves upwards, the curved edge presses against the roller, causing the top of the arc plate to move inwards. This, combined with the upward-moving support column, allows the cylindrical container to be clamped between the lifting ball and the two extrusion balls on a fixed axis. When the rubber wheel is horizontal, the second motor is activated to rotate the rubber wheel. The rotation of the rubber wheel, through friction, drives the extrusion balls to rotate, thus moving the cylindrical container horizontally until the weld on the cylindrical container is stably moved above the testing instrument. The second electric actuator then causes the gear column to move the arch frame a short distance, causing the rubber wheel to disengage from the extrusion balls. Finally, the first motor is activated again, causing the gear to rotate the gear column 90 degrees. By changing the rubber wheel from a horizontal to a vertical position and then re-pressing the extrusion ball, the second motor can be restarted to make the rubber wheel drive the extrusion ball to rotate in a different direction. The extrusion ball will drive the cylindrical container to rotate through friction, ultimately causing the weld of the cylindrical container to move above the detector and change the detection position. During this process, no external tools are needed to suspend and support the cylindrical container. Both sides of the cylindrical container are effectively fixed by fixed axes to prevent it from shaking and affecting the alignment of the weld and the detector. Moreover, the motor-driven alignment method can facilitate the adjustment of the position of the cylindrical container. Furthermore, the friction texture of the two extrusion balls can increase the friction between them and the cylindrical container, allowing the cylindrical container to rotate stably.

[0019] 2. By starting the third motor, the double-ended screw rotates, causing the threaded sleeve to slide inside the testing table, which in turn drives the mounting shell to move horizontally. Ultimately, the position of the mounting shell can adapt to cylindrical containers of various lengths, avoiding the situation where the two ends of the cylindrical container cannot simultaneously connect with the lifting ball when the container is short. Attached Figure Description

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

[0021] Figure 2 This is a side view of the clamping assembly.

[0022] Figure 3 This is a schematic diagram of the installation structure when the rubber wheel is horizontal.

[0023] Figure 4 This is a schematic diagram of the installation structure when the rubber wheel is vertical;

[0024] Figure 5 This is a three-dimensional structural diagram of a toothed column and a gear.

[0025] In the diagram: 1. Testing platform; 101. Testing instrument; 2. Clamping assembly; 201. Mounting shell; 202. Side groove; 203. Arc plate; 204. Roller; 205. Support column; 206. Movable block; 207. Curved edge; 208. Force-bearing inclined surface; 209. Extrusion block; 210. First electric actuator; 211. Adjustment chamber; 212. Lifting ball; 213. Second electric actuator; 214. First motor; 215. Gear column; 216. Gear; 217. Arch frame; 218. Second motor; 219. Rubber wheel; 220. Extrusion ball; 3. Adjustment assembly; 301. Third motor; 302. Double-ended screw; 303. Threaded sleeve; 304. Slide groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The present invention provides a technical solution: a pressure vessel defect detection device, including a detection platform 1, wherein a detector 101 is fixedly connected to the center of the top surface of the detection platform 1;

[0028] The top surface of the testing platform 1 is symmetrically provided with clamping components 2 on both sides. The testing platform 1 is provided with an adjustment component 3. The clamping component 2 includes a mounting shell 201. The top of the mounting shell 201 is symmetrically provided with side grooves 202. The side grooves 202 are provided with arc plate 203. The bottom end of the arc plate 203 is rotatably connected with a roller 204. The top end of the arc plate 203 is fixedly connected with an adjustment chamber 211. The top surface of the mounting shell 201 is slidably connected with a support column 205. The bottom end of the support column 205 is fixedly connected with a movable block 206. The top end of the support column 205 is rotatably connected with a lifting ball 212.

[0029] The movable block 206 has symmetrical curved edges 207 on both sides, and a force-bearing inclined surface 208 at the bottom end. The inner bottom surface of the mounting shell 201 is slidably connected to the extrusion block 209. A first electric push rod 210 is fixedly connected to one side of the mounting shell 201. A second electric push rod 213 and a first motor 214 are fixedly connected to one side of the adjusting chamber 211. An extrusion ball 220 is rotatably connected to the other side of the adjusting chamber 211. The outer side of the extrusion ball 220 is provided with friction texture, which increases the friction between the extrusion ball 220 and the rubber wheel 219 and the cylindrical container without hindering the free rotation of the extrusion ball 220. Furthermore, the extrusion ball 220 cannot be separated from the adjusting chamber 211.

[0030] The output end of the second electric actuator 213 extends into the adjustment chamber 211 and is rotatably connected to the gear column 215. The output end of the first motor 214 extends into the adjustment chamber 211 and is fixedly connected to the gear 216. The end of the gear column 215 is fixedly connected to the arch frame 217. The outer side of the arch frame 217 is fixedly connected to the second motor 218. The inner side of the arch frame 217 is rotatably connected to the rubber wheel 219, which is in contact with the extrusion ball 220.

[0031] While gear 216 is meshing with toothed column 215, it can slide. The output end of the second motor 218 extends into the arch frame 217 and is fixedly connected to the rubber wheel 219. When the rubber wheel 219 moves away from or is in contact with the extrusion ball 220, toothed column 215 slides with gear 216.

[0032] The arc plate 203 is rotatably connected to the mounting shell 201, and the top of the support column 205 is rotatably connected to the lifting ball 212. The roller 204 is rotatably connected to the curved edge 207. The lifting ball 212 can be in a free state to avoid friction with the cylindrical container when it moves or rotates, while supporting it.

[0033] The extrusion block 209 is fitted and connected to the force-bearing inclined surface 208, and the movable block 206 is slidably installed in the middle of the mounting shell 201; the extrusion block 209 is provided with a fitting inclined surface, which can cooperate with the force-bearing inclined surface 208 to adjust the position of the movable block 206.

[0034] The upper half of the curved plate 203 is located above the mounting housing 201, and the lower half of the curved plate 203 is located inside the mounting housing 201; the middle part of the curved plate 203 is rotatably connected to the interior of the mounting housing 201.

[0035] The adjustment assembly 3 includes a third motor 301 fixed to one side of the testing platform 1. The output end of the third motor 301 extends into the testing platform 1 and is fixedly connected to a double-ended screw 302. A threaded sleeve 303 is symmetrically threaded and slidably fitted onto the outside of the double-ended screw 302. The top of the threaded sleeve 303 is fixedly connected to the bottom of the mounting shell 201. A sliding groove 304 is symmetrically opened on the top surface of the testing platform 1. The sliding groove 304 is slidably connected to the threaded sleeve 303. The mounting shell 201 is in contact with the top surface of the testing platform 1. The double-ended screw 302 is rotatably connected to the inside of the testing platform 1. By starting the third motor 301, the double-ended screw 302 is rotated, thereby causing the threaded sleeve 303 to slide inside the testing platform 1, which in turn drives the mounting shell 201 to move horizontally. Ultimately, the position of the mounting shell 201 can adapt to cylindrical containers of various lengths, avoiding the situation where the two ends of the cylindrical container cannot simultaneously overlap with the lifting ball 212 when the cylindrical container is short.

[0036] Working principle: Before using this pressure vessel defect detection device, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5 As shown, the container is first placed on the lifting ball 212. Then, the first electric actuator 210 is activated to move the extrusion block 209 horizontally. The extrusion block 206 is extruded upward by the force-bearing inclined plane 208. As the extrusion block 206 moves upward, the extrusion of the roller 204 by the curved edge 207 causes the roller 204 to roll along the curved edge 207, thereby causing the top of the arc plate 203 to move inward. This, combined with the upward-moving support column 205, allows the cylindrical container to be clamped by the lifting ball 212 and the two extrusion balls 220. When the rubber wheel 219 is in a horizontal state, the second motor 218 is activated to rotate the rubber wheel 219. The rotation of the rubber wheel 219 will drive the extrusion balls 220 to rotate through friction, thereby making the cylindrical container horizontal. The device moves until the weld on the cylindrical container is stably moved above the detector 101. Then, the second electric actuator 213 is activated, causing the toothed column 215 to move the arch frame 217 a short distance, causing the rubber wheel 219 to disengage from the extrusion ball 220. The first motor 214 is then activated, causing the gear 216 to rotate the toothed column 215 90 degrees, changing the rubber wheel 219 from a horizontal to a vertical position. After the rubber wheel 219 re-extrudes the extrusion ball 220, the second motor 218 is activated again, causing the rubber wheel 219 to rotate the extrusion ball 220 in a different direction. The extrusion ball 220 will drive the cylindrical container to rotate through friction, ultimately causing the weld of the cylindrical container to move above the detector 101 and change the detection position.

[0037] Therefore, during the inspection process, no external tools are needed to suspend and support the cylindrical container. Both sides of the cylindrical container are effectively fixed by a fixed axis to prevent it from shaking and affecting the alignment of the weld and the inspection instrument 101. Moreover, the motor-driven alignment method can easily adjust the position of the cylindrical container and facilitate alignment. Furthermore, the two extrusion balls 220 can increase the friction between them and the cylindrical container through friction texture, so that the cylindrical container can rotate stably.

[0038] By starting the third motor 301, the double-headed screw 302 is rotated, which causes the threaded sleeve 303 to slide inside the testing table 1, thereby driving the mounting shell 201 to move horizontally. Ultimately, the position of the mounting shell 201 can adapt to cylindrical containers of various lengths, avoiding the situation where the two ends of the cylindrical container cannot simultaneously overlap with the lifting ball 212 when the cylindrical container is short.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure vessel defect detection device, comprising a detection platform (1), wherein a detector (101) is fixedly connected to the center of the top surface of the detection platform (1); Its features are, Also includes: The top surface of the testing platform (1) is symmetrically provided with clamping components (2) on both sides. The testing platform (1) is provided with an adjustment component (3). The clamping component (2) includes a mounting shell (201). The top of the mounting shell (201) is symmetrically provided with side grooves (202). The side grooves (202) are provided with arc plates (203). The bottom end of the arc plates (203) is rotatably connected with rollers (204). The top end of the arc plates (203) is fixedly connected with an adjustment chamber (211). The top surface of the mounting shell (201) is slidably connected with a support column (205). The bottom end of the support column (205) is fixedly connected with a movable block (206). The top end of the support column (205) is rotatably connected with a lifting ball (212). The movable block (206) has symmetrical curved edges (207) on both sides, and the bottom end of the movable block (206) has a force-bearing inclined surface (208). The inner bottom surface of the mounting shell (201) is slidably connected to an extrusion block (209). The mounting shell (201) is fixedly connected to one side of a first electric push rod (210). The adjusting chamber (211) is fixedly connected to one side of a second electric push rod (213) and a first motor (214). The adjusting chamber (211) is rotatably connected to an extrusion ball (220) on the other side. The output end of the second electric actuator (213) extends into the adjustment chamber (211) and is rotatably connected to a gear column (215). The output end of the first motor (214) extends into the adjustment chamber (211) and is fixedly connected to a gear (216). An arch frame (217) is fixedly connected to the end of the gear column (215). A second motor (218) is fixedly connected to the outer side of the arch frame (217). A rubber wheel (219) is rotatably connected to the inner side of the arch frame (217). The rubber wheel (219) is in contact with the extrusion ball (220).

2. The pressure vessel defect detection device according to claim 1, characterized in that: The gear (216) is meshed with the toothed column (215) and can slide at the same time. The output end of the second motor (218) extends into the arch frame (217) and is fixedly connected to the rubber wheel (219).

3. The pressure vessel defect detection device according to claim 2, characterized in that: The arc plate (203) is rotatably connected to the mounting shell (201), the top of the support column (205) is rotatably connected to the lifting ball (212), and the roller (204) is rotatably connected to the curved edge (207).

4. The pressure vessel defect detection device according to claim 1, characterized in that: The extrusion block (209) is fitted and connected to the force-bearing inclined surface (208), and the movable block (206) is slidably installed in the middle of the interior of the mounting shell (201).

5. The pressure vessel defect detection device according to claim 1, characterized in that: The upper half of the arc plate (203) is located above the mounting shell (201), and the lower half of the arc plate (203) is located inside the mounting shell (201).

6. The pressure vessel defect detection device according to claim 1, characterized in that: The adjustment assembly (3) includes a third motor (301) fixed to one side of the testing platform (1). The output end of the third motor (301) extends into the testing platform (1) and is fixedly connected to a double-ended screw (302). The double-ended screw (302) is symmetrically threaded and slidably fitted with a threaded sleeve (303). The top of the threaded sleeve (303) is fixedly connected to the bottom of the mounting shell (201).

7. The pressure vessel defect detection device according to claim 6, characterized in that: The top surface of the testing platform (1) is symmetrically provided with a sliding groove (304), the sliding groove (304) is slidably connected to the threaded sleeve (303), the mounting shell (201) is in contact with the top surface of the testing platform (1), and the double-headed screw (302) is rotatably connected to the inside of the testing platform (1).

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