Device for detecting microcracks on surface of pressure vessel

Abstract

The utility model relates to the technical field of crack detection, and discloses a pressure vessel surface microcrack detection device which comprises a bottom plate, the rear side of the bottom plate is fixedly connected with a hollow plate, the right end of the rear side of the hollow plate is fixedly connected with a motor, and the output end of the motor penetrates through the hollow plate and is fixedly connected with a first transmission wheel. A transmission belt is arranged on the outer wall of the first transmission wheel, a second transmission wheel is rotationally connected to the left side of the inner wall of the hollow plate, the first transmission wheel is in transmission connection with the second transmission wheel through the transmission belt, and a telescopic support is fixedly connected to the top of the transmission belt. According to the device, the motor is started to drive the transmission belt to conduct transmission and drive the telescopic support to move, the first gear conducts meshing movement and rotation and drives the ball clamp to conduct clamping, the balls enable the pressure container to rotate during clamping, the telescopic block can adjust lifting of the roller, and then the motor drives the roller to rotate. Therefore, the pressure container is driven to rotate.

Description

Technical Field

[0001] This utility model relates to the field of crack detection technology, and in particular to a device for detecting microcracks on the surface of pressure vessels. Background Technology

[0002] A pressure vessel is a sealed container that can withstand pressure and is used in the chemical, petroleum, power and medical fields. It can be used to store gases produced by chemical reactions, crude oil produced in petroleum refining, gases produced in thermal power generation and oxygen used in medicine. Before use, surface crack detection is required to prevent gas and liquid loss. This is where a pressure vessel surface micro-crack detection device is needed.

[0003] The pressure vessel surface microcrack detection device is a device used to detect whether there are microcracks on the surface of a pressure vessel. It can detect tiny cracks that are invisible to the naked eye. Detecting pressure vessels before use can prevent the pressure vessel from cracking due to gas and hydraulic pressure after it is filled with gas and liquid, thus avoiding resource waste.

[0004] Currently available pressure vessel surface microcrack detection devices require manual control of the ultrasonic probe's movement and applied pressure during detection. When detecting pressure vessels with irregularly shaped cracks, corners, and holes, they cannot perform ultrasonic detection and location of all crack angles, limiting the angle of ultrasonic wave reflection. This leads to misjudgments and missed detections, reducing the device's practicality. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pressure vessel surface microcrack detection device, which aims to improve the problem that the crack detection range of the existing pressure vessel surface microcrack detection device is relatively limited and inconvenient to adjust.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a pressure vessel surface microcrack detection device, comprising a base plate, characterized in that: a hollow plate is fixedly connected to the rear side of the base plate, a motor is fixedly connected to the right rear end of the hollow plate, the output end of the motor passes through the hollow plate and is fixedly connected to a first transmission wheel, a transmission belt is provided on the outer wall of the first transmission wheel, a second transmission wheel is rotatably connected to the left side of the inner wall of the hollow plate, the first transmission wheel is connected to the second transmission wheel via the transmission belt, a telescopic bracket is fixedly connected to the top of the transmission belt, and the front side of the telescopic bracket... A fixed plate is fixedly connected, and U-shaped blocks are fixedly connected to the left and right sides of the inner wall of the fixed plate. First gears are rotatably connected to the front and rear sides of the inner wall of the U-shaped blocks. Multiple first gears are meshed with each other. Ball bearing clamps are fixedly connected to the outer side of the first gears. A telescopic block is fixedly connected to the middle of the bottom side of the fixed plate. A motor is fixedly connected to the left side of the telescopic block. The output end of the motor passes through the telescopic block and is fixedly connected to a roller. An ultrasonic transceiver is provided on the top of the base plate. A fixing mechanism is provided in the middle of the inner wall of the base plate. The fixing mechanism is used to facilitate the disassembly and installation of the ultrasonic transceiver.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes an electric telescopic rod, which is fixedly connected to the middle of the bottom side of the inner wall of the base plate. A rack is fixedly connected to the top of the electric telescopic rod. Fixing blocks are rotatably connected to all four sides of the inner wall of the base plate. A second gear is rotatably connected to the outer side of the fixing blocks. The second gear meshes with the rack. A first connecting rod is fixedly connected to the outer side of the second gear. A fixing clamp is fixedly connected to the top of the outer wall of the first connecting rod. The fixing clamp engages with the ultrasonic transceiver.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the fixed plate is rotatably connected to the left and right sides of the fixed plate. One end of the second connecting rod passes through the fixed plate and is fixedly connected to the corresponding first gear. The other end of the second connecting rod is fixedly connected to a knob.

[0011] As a further description of the above technical solution:

[0012] A drawer is provided on the front side of the inner wall of the base plate, and slide rails are fixedly connected to the left and right sides of the outer wall of the drawer. The drawer is slidably connected to the base plate through the slide rails.

[0013] As a further description of the above technical solution:

[0014] Handles are fixedly connected to the left and right sides of the outer wall of the base plate, and protective pads are fixedly connected to the outer wall of the handles.

[0015] As a further description of the above technical solution:

[0016] A pull rod is fixedly connected to the center of the front side of the drawer, and a protective sleeve is fixedly connected to the outer wall of the pull rod.

[0017] As a further description of the above technical solution:

[0018] A controller is fixedly connected to the top front side of the base plate. The controller is electrically connected to the motor, the electric telescopic rod, the motor, and the ultrasonic transceiver.

[0019] As a further description of the above technical solution:

[0020] The hollow slab has sliding grooves on both the front and rear sides of its inner wall, and the telescopic bracket is slidably connected to the sliding grooves.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor is started to drive the first transmission wheel to rotate, and then the transmission belt drives the second transmission wheel to move back and forth along the transmission belt. The first gear drives the ball clamp to rotate through meshing, thereby realizing the clamping function. The balls in the ball clamp allow the pressure vessel to rotate even when it is clamped by the ball clamp. The motor is started to drive the roller to rotate, and the height of the roller is adjusted by the telescopic block to make the roller fit with the pressure vessel. When the roller rotates, it can drive the pressure vessel to rotate together through friction, making the ultrasonic angle of the pressure vessel easier to adjust and more comprehensive, thus improving the practicality of the device.

[0023] 2. In this utility model, the rack is driven to move up and down by an electric telescopic rod, and the four second gears are positioned by four fixed blocks. When the rack moves up and down, it meshes with the four second gears, which drives the first connecting rod on the second gear and the fixing clamp fixed on the top of the first connecting rod to rotate, thereby realizing the function of quick installation and disassembly of the ultrasonic transceiver and improving the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of the pressure vessel surface microcrack detection device proposed in this utility model;

[0025] Figure 2 This is a front view of the pressure vessel surface microcrack detection device proposed in this utility model;

[0026] Figure 3 This is a partial structural exploded view of the pressure vessel surface microcrack detection device proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0028] Figure 5 This is a partial structural diagram of the fixing mechanism of the pressure vessel surface microcrack detection device proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Fixing mechanism; 201. Electric telescopic rod; 202. Second gear; 203. Rack; 204. First connecting rod; 205. Fixing block; 206. Fixing clamp; 3. Telescopic bracket; 4. Motor; 5. Hollow plate; 6. First transmission wheel; 7. Transmission belt; 8. Second transmission wheel; 9. Fixing plate; 10. U-shaped block; 11. First gear; 12. Ball bearing clamp; 13. Motor; 14. Roller; 15. Telescopic block; 16. Slide groove; 17. Ultrasonic transceiver; 18. Handle; 19. Pad; 20. Sheath; 21. Pull rod; 22. Controller; 23. Slide rail; 24. Knob; 25. Drawer; 26. Second connecting rod. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a pressure vessel surface microcrack detection device, comprising a base plate 1, a hollow plate 5 fixedly connected to the rear side of the base plate 1, a motor 4 fixedly connected to the right rear end of the hollow plate 5, the output end of the motor 4 passing through the hollow plate 5 and fixedly connected to a first transmission wheel 6, a transmission belt 7 provided on the outer wall of the first transmission wheel 6, a second transmission wheel 8 rotatably connected to the left side of the inner wall of the hollow plate 5, the first transmission wheel 6 being connected to the second transmission wheel 8 via the transmission belt 7, a telescopic bracket 3 fixedly connected to the top of the transmission belt 7, and a fixing plate 9 fixedly connected to the front side of the telescopic bracket 3. U-shaped blocks 10 are fixedly connected to both the left and right sides of the inner wall. First gears 11 are rotatably connected to the front and rear sides of the inner wall of the U-shaped blocks 10. Multiple first gears 11 are meshed with each other. A ball bearing clamp 12 is fixedly connected to the outer side of the first gear 11. A telescopic block 15 is fixedly connected to the middle of the bottom side of the fixed plate 9. A motor 13 is fixedly connected to the left side of the telescopic block 15. The output end of the motor 13 passes through the telescopic block 15 and is fixedly connected to a roller 14. An ultrasonic transceiver 17 is provided on the top of the base plate 1. A fixing mechanism 2 is provided in the middle of the inner wall of the base plate 1. The fixing mechanism 2 is used to facilitate the disassembly and installation of the ultrasonic transceiver 17.

[0033] Specifically, the starter motor 4 drives the first transmission wheel 6 to rotate, and through the transmission belt 7, it synchronously drives the second transmission wheel 8 to rotate. When the transmission belt 7 moves back and forth, it drives the telescopic bracket 3 on it to move back and forth. Along the inside of the fixed plate 9 on the telescopic bracket 3, the first gear 11 located around the inner wall of the fixed plate 9 rotates, and during rotation, the rotation angle of multiple first gears 11 is synchronized through meshing transmission. At this time, as the first gear 11 rotates, it drives the ball clamp 12 on it to rotate, so as to fix the material through the ball clamp 12. The telescopic block 15 can adjust the height of the roller 14 so that the roller 14 fits against the pressure vessel. The motor 13 is used to drive the roller 14 to rotate, thereby driving the pressure vessel to rotate through friction. At the same time, through the balls in the ball clamp 12, the rotation angle and orientation can be adjusted while keeping the material fixed, so as to cooperate with the movement and extension of the telescopic bracket 3 to quickly locate and detect the different positions of the material. The ultrasonic transceiver 17 emits and receives ultrasonic waves to detect the location of cracks.

[0034] Reference Figure 1 , Figure 2 and Figure 5The fixing mechanism 2 includes an electric telescopic rod 201, which is fixedly connected to the middle of the bottom side of the inner wall of the base plate 1. A rack 203 is fixedly connected to the top of the electric telescopic rod 201. When the electric telescopic rod 201 extends or retracts, it can drive the rack 203 to rise or fall. Fixing blocks 205 are rotatably connected to all four sides of the inner wall of the base plate 1. Second gears 202 are rotatably connected to the outer side of the fixing blocks 205. The fixing blocks 205 are used to position the four second gears 202. The second gears 202 are meshed with the rack 203. The rack 203 drives the four second gears 202 to rotate through meshing motion. When the second gears 202 rotate, they will drive the corresponding first connecting rods 204 to rotate together. The outer side of the second gears 202 is fixedly connected to the first connecting rods 204. A fixing clamp 206 is fixedly connected to the top of the outer wall of the first connecting rod 204. After the first connecting rod 204 rotates, it will clamp together with the fixing clamp 206. The fixing clamp 206 is engaged with the ultrasonic transceiver 17.

[0035] Specifically, the controller 22 controls the electric telescopic rod 201 to rise and fall, which in turn drives the rack 203 to rise and fall. The rack 203 drives the four second gears 202 to rotate through meshing motion. The fixing block 205 is used to position the four second gears 202. When the second gears 202 rotate, they can drive the first connecting rod 204 to rotate, thereby driving the fixing clamp 206 at the top of the first connecting rod 204 to achieve the clamping function of the ultrasonic transceiver 17.

[0036] Reference Figure 1 , Figure 2 and Figure 4 The outer walls of the fixed plate 9 are rotatably connected to the left and right sides of the fixed plate 9. One end of the second connecting rod 26 passes through the fixed plate 9 and is fixedly connected to the corresponding first gear 11. The other end of the second connecting rod 26 is fixedly connected to the knob 24, which makes it easier to rotate the first gear 11. The outer walls of the base plate 1 are fixedly connected to the handles 18, which makes it easier to move the device. The outer walls of the handles 18 are fixedly connected to the pads 19, which makes the handles 18 more comfortable to use. The top of the front side of the base plate 1 is fixedly connected to the controller 22. The controller 22 is electrically connected to the motor 4, the electric telescopic rod 201, the motor 13 and the ultrasonic transceiver 17 respectively, and can control the switching of the motor 4, the electric telescopic rod 201, the motor 13 and the ultrasonic transceiver 17.

[0037] Specifically, the first gear 11 is made easier to rotate by installing a knob 24 on the outside of the first gear 11, the device is made easier to move by installing a handle 18, the handle 18 is made more comfortable to use by installing a pad 19, the controller 22 can control the switching of the motor 4, the electric telescopic rod 201, the motor 13 and the ultrasonic transceiver 17 respectively, the controller 22 can use a TC55 motion controller, and both the motor 4 and the motor 13 can use TEC0 motors.

[0038] Reference Figure 1 , Figure 2 and Figure 4 A drawer 25 is provided on the front side of the inner wall of the base plate 1. The drawer 25 is used to hold instruments needed for measurement. Slide rails 23 are fixedly connected to the left and right sides of the outer wall of the drawer 25. The slide rails 23 make the drawer 25 more convenient to use. The drawer 25 is slidably connected to the base plate 1 through the slide rails 23. A pull rod 21 is fixedly connected to the middle of the front side of the drawer 25. The pull rod 21 makes the drawer 25 easier to open. A protective sleeve 20 is fixedly connected to the outer wall of the pull rod 21. The protective sleeve 20 makes the pull rod 21 more comfortable to use. The inner wall of the hollow plate 5 has grooves 16 on both the front and back sides. The grooves 16 make the sliding of the telescopic bracket 3 smoother. The telescopic bracket 3 is slidably connected to the grooves 16.

[0039] Specifically, the drawer 25 is designed to conveniently store instruments needed for measurement. The slide rails 23 on both sides of the drawer 25 make the drawer 25 slide more smoothly. The pull rod 21 makes it easier to pull out the drawer 25. The cover 20 makes the pull rod 21 more comfortable to use. The slide groove 16 makes the telescopic bracket 3 slide more smoothly.

[0040] Working Principle: Before using the device, firstly, the motor 4 is started to drive the first transmission wheel 6 to rotate. Simultaneously, the transmission belt 7 drives the second transmission wheel 8 to rotate as the first transmission wheel 6 rotates. When the transmission belt 7 reciprocates left and right, it drives the telescopic bracket 3 on it to move back and forth. Then, through meshing transmission, the first gear 11 rotates around the inner wall of the fixed plate 9, and as the first gear 11 rotates, it drives the ball clamp 12 to rotate, thereby fixing the pressure vessel. Starting the motor 13 can adjust the rotation of the roller 14 to drive the pressure vessel to rotate through friction. The height of the roller 14 can be adjusted by the extension and retraction of the telescopic block 15 to extrude different pressure vessels. At the same time, the balls installed in the ball clamp 12 can adjust the rotation angle and orientation of the pressure vessel when it is fixed, in order to cooperate with the movement and extension of the telescopic bracket 3, so as to achieve rapid detection and positioning of different positions of the material. The ultrasonic transceiver 17 emits and receives ultrasonic waves to detect the location of cracks.

[0041] Furthermore, starting the electric telescopic rod 201 to extend or retract can drive the rack 203 to rise or fall. At this time, through meshing transmission, multiple second gears 202 can be driven to rotate along the fixed block 205 simultaneously when the rack 203 moves. When the second gears 202 rotate, they can drive the first connecting rod 204 to rotate, thereby driving the fixing clip 206 at the top of the first connecting rod 204 to move and fix the ultrasonic transceiver 17, so as to fix and disassemble the ultrasonic transceiver 17 by moving the fixing clip 206.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting micro-cracks on the surface of a pressure vessel, comprising a base plate (1), characterized in that: The rear side of the bottom plate (1) is fixedly connected with a hollow plate (5), the rear right end of the hollow plate (5) is fixedly connected with a motor (4), the output end of the motor (4) penetrates through the hollow plate (5) and is fixedly connected with a first transmission wheel (6), the outer wall of the first transmission wheel (6) is provided with a transmission belt (7), the inner wall left side of the hollow plate (5) is rotatably connected with a second transmission wheel (8), the first transmission wheel (6) is in transmission connection with the second transmission wheel (8) through the transmission belt (7), the top of the transmission belt (7) is fixedly connected with an extension support (3), the front side of the extension support (3) is fixedly connected with a fixed plate (9), the inner wall left and right sides of the fixed plate (9) are fixedly connected with U-shaped blocks (10), the inner wall front and back sides of the U-shaped blocks (10) are rotatably connected with first gears (11), a plurality of first gears (11) are in meshing connection, the outer side of the first gear (11) is fixedly connected with a ball clamp (12), the bottom side of the fixed plate (9) is fixedly connected with an extension block (15), the left side of the extension block (15) is fixedly connected with a motor (13), the output end of the motor (13) penetrates through the extension block (15) and is fixedly connected with a roller (14), the top of the bottom plate (1) is provided with an ultrasonic transceiver (17), the inner wall middle part of the bottom plate (1) is provided with a fixing mechanism (2), the fixing mechanism (2) is used for facilitating the dismounting and mounting of the ultrasonic transceiver (17).

2. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 1, characterized in that: The fixing mechanism (2) comprises an electric telescopic rod (201), the electric telescopic rod (201) is fixedly connected to the inner wall bottom side middle part of the bottom plate (1), the top end of the electric telescopic rod (201) is fixedly connected with a rack (203), the inner wall all around of the bottom plate (1) is rotatably connected with a fixed block (205), the outer side of the fixed block (205) is rotatably connected with a second gear (202), the second gear (202) is in meshing connection with the rack (203), the outer side of the second gear (202) is fixedly connected with a first connecting rod (204), the outer wall top of the first connecting rod (204) is fixedly connected with a fixed clamp (206), the fixed clamp (206) is engaged with the ultrasonic transceiver (17).

3. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 1, wherein: The outer wall left and right sides of the fixed plate (9) are rotatably connected with second connecting rods (26), one end of the second connecting rod (26) penetrates through the fixed plate (9) and is fixedly connected with the corresponding first gear (11), the other end of the second connecting rod (26) is fixedly connected with a knob (24).

4. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 1, wherein: The inner wall front side of the bottom plate (1) is provided with a drawer (25), the outer wall left and right sides of the drawer (25) are fixedly connected with slide rails (23), the drawer (25) is in sliding connection with the bottom plate (1) through the slide rails (23).

5. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 1, wherein: The outer wall left and right sides of the bottom plate (1) are fixedly connected with handles (18), the outer wall of the handle (18) is fixedly connected with a protective pad (19).

6. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 4, wherein: The front side middle part of the drawer (25) is fixedly connected with a pull rod (21), and the outer wall of the pull rod (21) is fixedly connected with a sheath (20).

7. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 1, wherein: The front side top of the bottom plate (1) is fixedly connected with a controller (22), and the controller (22) is electrically connected with the motor (4), the electric telescopic rod (201), the motor (13) and the ultrasonic transceiver (17) respectively.

8. The apparatus for detecting micro-cracks on the surface of a pressure vessel according to claim 1, wherein: The inner wall of the hollow plate (5) is provided with a sliding groove (16) on the front side and the rear side, and the telescopic support (3) is in sliding connection with the sliding groove (16).

Images