Nondestructive testing device for interior of liquid tank

Abstract

The utility model relates to the technical field of nondestructive testing technology, in particular to a liquid tank interior nondestructive testing device which comprises a bottom plate and an ultrasonic flaw detector, a liquid tank body is placed in the middle of the upper side of the bottom plate, the upper side of the bottom plate is fixedly connected with a vertical plate, and the inner side face of the vertical plate is rotationally connected with a threaded rotating shaft. According to the utility model, through the rotation adjustment of the disc, the ultrasonic flaw detector can move circularly, so that the flaw detection head of the ultrasonic flaw detector can comprehensively and nondestructively detect the interior of the liquid tank; meanwhile, the motor of the electric sliding table is utilized to enable the electric sliding block to move downwards along the electric sliding table, so that the ultrasonic flaw detector enters the bottom position in the liquid tank, the position of the ultrasonic flaw detector does not need to be repeatedly adjusted, time and labor are saved, rapid nondestructive testing is carried out on the interior of the liquid tank, and the nondestructive testing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nondestructive testing technical field, concretely is a kind of liquid tank internal nondestructive testing device. BACKGROUND

[0002] In order to ensure the safety of liquid tank when using, it needs to be detected regularly, and nondestructive testing is a kind of technical means which can judge the quality and reliability of the material by detecting the physical and chemical properties of the material itself without damaging the detected object.

[0003] The prior art discloses patent application number "CN202121108762.5", a kind of liquid steel tank nondestructive testing probe, comprising: shell and guide rod;The shell covers the upper end of the steel liquid tank;The both sides of the shell are provided with horizontally arranged screw rod, the middle part of the upper end surface of the shell is provided with through hole, the both sides of the shell are provided with mounting hole, one end of the screw rod is inserted into the through hole through the mounting hole, the screw rod is rotatably connected with the mounting hole, two vertically arranged clamping plates are arranged in the through hole, and the clamping plates are arranged on the both sides of the steel liquid tank;Threaded hole is formed in the end of the clamping plate away from the steel liquid tank, and the screw rod is threadedly connected with the threaded hole;The guide rod is vertically arranged and movably connected with the through hole, and the guide rod is inserted into the inside of the steel liquid tank through the through hole;Two connecting rods are hingedly connected to the lower end of the guide rod, and a probe body is mounted on the end of the connecting rod away from the guide rod.

[0004] The nondestructive testing probe can only realize detection on the inner wall, and in actual use, the nondestructive testing device can only detect the inner wall from top to bottom, so when other positions need to be nondestructively detected, the position of the ultrasonic flaw detector needs to be adjusted repeatedly, which is cumbersome to operate, and the liquid tank cannot be quickly detected, thereby affecting the detection efficiency of the nondestructive testing device and being inconvenient to use. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of liquid tank internal nondestructive testing device to solve the problems raised in the above background.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A kind of liquid tank internal nondestructive testing device, including bottom plate and ultrasonic flaw detector, liquid tank main body is placed in the middle of the upper side of bottom plate, the upper side of bottom plate is fixedly connected with vertical plate, screw shaft is rotatably connected on the inner side of vertical plate, lifting plate is screw-connected on the outer surface of screw shaft, fixed plate is fixedly installed on the left side of lifting plate;

[0008] The upper side of the fixed plate is respectively rotatably mounted with a first gear rod and a second gear rod. The lower side of the first gear rod is fixedly connected to a disc. The lower side of the disc is fixedly mounted with a connecting plate. One side of the connecting plate is fixedly connected to an electric slide table. One side of the electric slide table is fixedly equipped with an electric slider. One side of the electric slider is fixedly mounted with an L-shaped plate. Two smooth rods are fixedly connected between the L-shaped plate and the electric slider. Slide plates are slidably mounted on the outer surfaces of the two smooth rods.

[0009] Preferably, a telescopic plate is slidably connected to one side of the skateboard, and one side of the telescopic plate passes through the skateboard and extends to the other side of the skateboard. A first spring is connected in an array between the telescopic plate and the skateboard. A bolt for fixing the skateboard is threadedly connected to one side of the skateboard. An ultrasonic flaw detector is located above the telescopic plate, and a flaw detector head is fixedly connected to one side of the ultrasonic flaw detector.

[0010] Preferably, two connecting rods are fixedly installed inside the telescopic plate, and two clamps for fixing the ultrasonic flaw detector are slidably connected to the outer surfaces of the two connecting rods. Two second springs are fixedly installed between the two clamps. A vertical rod is fixedly connected to the inner side of the slide plate, and a top plate for fixing the ultrasonic flaw detector is slidably connected to the outer surface of the vertical rod. Two bolts are threadedly connected to one side of the top plate.

[0011] Preferably, a U-shaped seat is fixedly connected to the upper side of the telescopic plate, and two symmetrically arranged bolts are threaded inside the U-shaped seat. The inner sides of the two bolts are fixedly provided with clamping seats for fixing the flaw detector head. Two second limiting round rods are fixedly connected to one side of the two clamping seats, and the outer surfaces of the two second limiting round rods are slidably connected to the inside of the U-shaped seat.

[0012] Preferably, the vertical plate is located on the right side of the liquid tank body, and the lower sides of the first gear rod and the second gear rod both penetrate through the fixed plate and extend to the lower side of the fixed plate. The lower side of the second gear rod is fixedly connected to a servo motor through a motor mounting plate, and the first gear rod and the second gear rod mesh with each other.

[0013] Preferably, two parallel first limiting rods are fixedly installed on the inner side of the vertical plate, and the outer surfaces of the two first limiting rods are slidably connected to the inside of the lifting plate. The upper side of the threaded shaft passes through the vertical plate and extends to the upper side of the vertical plate. A servo motor is fixedly connected to the upper side of the threaded shaft through a motor mounting plate.

[0014] Preferably, two mounting seats are fixedly installed on the upper side of the base plate. Two crossbars are fixedly connected inside each mounting seat. Positioning seats for fixing the liquid tank body are slidably installed on the outer surface of the two crossbars. Bolts are threaded to both ends of the positioning seats.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model uses the rotation adjustment of the disc to allow the ultrasonic flaw detector to move in a circular motion, enabling the ultrasonic flaw detector head to conduct comprehensive non-destructive testing of the inside of the liquid tank. At the same time, the motor of the electric slide table allows the electric slider to move downward along the electric slide table, allowing the ultrasonic flaw detector to enter the bottom position inside the liquid tank. There is no need to repeatedly adjust the position of the ultrasonic flaw detector, saving time and effort, thereby enabling rapid non-destructive testing of the inside of the liquid tank and improving the efficiency of non-destructive testing.

[0017] 2. This utility model utilizes two clamping seats to hold the two ends of the flaw detector head. Then, the clamping plate and top plate can be used to position the ultrasonic flaw detector. Subsequently, the elastic force of the first spring allows the flaw detector head to elastically fit into the liquid tank without hard damage to the flaw detector head, ensuring the safety of the ultrasonic flaw detector and extending its service life. Attached Figure Description

[0018] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 A schematic diagram of the installation of the first gear shaft and the second gear shaft;

[0021] Figure 3 This is a utility model Figure 2 Installation diagram of the smooth rod and slide plate;

[0022] Figure 4 This is a utility model Figure 3 Schematic diagram of the structure of the middle clamping seat and the top plate;

[0023] Figure 5 This is a utility model Figure 4 A schematic diagram of the structure of the sliding plate, the telescopic plate, and the first spring;

[0024] The attached figures are labeled as follows:

[0025] 1. Base plate; 2. Liquid tank body; 3. Vertical plate; 4. Threaded shaft; 5. Lifting plate; 6. Fixing plate; 7. Ultrasonic flaw detector; 8. First gear rotating rod; 9. Disc; 10. Second gear rotating rod; 11. Servo motor one; 12. Connecting plate; 13. Electric slide table; 14. Electric slider; 15. L-shaped plate; 16. First limiting round rod; 17. Servo motor two; 18. Smooth rod; 19. Slide plate; 20. Bolt four; 21. Telescopic plate; 22. First spring; 23. Flaw detector head; 24. Connecting rod; 25. Clamping plate; 26. Second spring; 27. U-shaped seat; 28. Bolt one; 29. ​​Clamping seat; 30. Second limiting round rod; 31. Vertical rod; 32. Top plate; 33. Bolt two; 66. Mounting seat; 67. Horizontal rod; 68. Positioning seat; 69. Bolt three. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 5 As shown, a non-destructive testing device for the interior of a liquid tank includes a base plate 1 and an ultrasonic flaw detector 7. The ultrasonic flaw detector 7 emits ultrasonic waves and receives their reflected waves. Based on the shape, amplitude, and other information of the reflected waves, the location and size of defects inside the liquid tank are determined. The liquid tank body 2 is placed in the middle of the upper side of the base plate 1. A vertical plate 3 is fixedly connected to the upper side of the base plate 1. A threaded shaft 4 is rotatably connected to the inner side of the vertical plate 3. A lifting plate 5 is threadedly connected to the outer surface of the threaded shaft 4. A fixing plate 6 is fixedly installed on the left side of the lifting plate 5.

[0028] The upper side of the fixed plate 6 is rotatably mounted with a first gear rod 8 and a second gear rod 10. The lower side of the first gear rod 8 is fixedly connected to a disc 9. The lower side of the disc 9 is fixedly mounted with a connecting plate 12. One side of the connecting plate 12 is fixedly connected to an electric slide table 13. One side of the electric slide table 13 is fixedly provided with an electric slider 14. Through the setting of the lifting plate 5 and the electric slider 14, both the lifting plate 5 and the electric slider 14 can move downwards to drive the ultrasonic flaw detector 7 to comprehensively inspect the inside of the liquid tank. One side of the electric slider 14 is fixedly mounted with an L-shaped plate 15. Two smooth rods 18 are fixedly connected between the L-shaped plate 15 and the electric slider 14. Slide plates 19 are slidably mounted on the outer surface of the two smooth rods 18.

[0029] A telescopic plate 21 is slidably connected to one side of the slide plate 19. One side of the telescopic plate 21 passes through the slide plate 19 and extends to the other side of the slide plate 19. A first spring 22 is connected in an array between the telescopic plate 21 and the slide plate 19. A bolt 20 for fixing the slide plate 19 is threadedly connected to one side of the slide plate 19. An ultrasonic flaw detector 7 is located above the telescopic plate 21. A flaw detector head 23 is fixedly connected to one side of the ultrasonic flaw detector 7.

[0030] Two connecting rods 24 are fixedly installed inside the telescopic plate 21. Two clamping plates 25 for fixing the ultrasonic flaw detector 7 are slidably connected to the outer surfaces of the two connecting rods 24. Two second springs 26 are fixedly installed between the two clamping plates 25. The two elastic clamping plates 25 can elastically clamp ultrasonic flaw detectors 7 of different sizes, which is convenient to use. A vertical rod 31 is fixedly connected to the inner side of the slide plate 19. A top plate 32 for fixing the ultrasonic flaw detector 7 is slidably connected to the outer surface of the vertical rod 31. A bolt 33 is threadedly connected to one side of the top plate 32.

[0031] A U-shaped seat 27 is fixedly connected to the upper side of the telescopic plate 21. Two bolts 28 are symmetrically arranged inside the U-shaped seat 27. The inner sides of the two bolts 28 are fixedly provided with clamping seats 29 for fixing the flaw detector head 23. Two second limiting round rods 30 are fixedly connected to one side of the two clamping seats 29. The outer surfaces of the two second limiting round rods 30 are slidably connected to the inside of the U-shaped seat 27. By setting the second limiting round rods 30, the clamping seats 29 can be limited by the two second limiting round rods 30, so that the two clamping seats 29 can move towards each other and clamp the outside of the flaw detector head 23 for stable positioning of the flaw detector head 23.

[0032] The vertical plate 3 is located on the right side of the liquid tank body 2. The lower sides of the first gear rod 8 and the second gear rod 10 both pass through the fixing plate 6 and extend to the lower side of the fixing plate 6. The lower side of the second gear rod 10 is fixedly connected to a servo motor 11 through a motor mounting plate. The first gear rod 8 and the second gear rod 10 mesh with each other.

[0033] Two parallel first limiting rods 16 are fixedly installed on the inner side of the vertical plate 3. The outer surfaces of the two first limiting rods 16 are slidably connected to the inside of the lifting plate 5. By setting the first limiting rods 16, the movement trajectory of the lifting plate 5 can be limited, so that the lifting plate 5 can move up and down smoothly, so that the ultrasonic flaw detector 7 can enter the interior of the liquid tank for non-destructive testing. The upper side of the threaded shaft 4 passes through the vertical plate 3 and extends to the upper side of the vertical plate 3. The upper side of the threaded shaft 4 is fixedly connected to the servo motor 17 through the motor mounting plate.

[0034] Two mounting seats 66 are fixedly installed on the upper side of the base plate 1. Two crossbars 67 are fixedly connected inside each mounting seat 66. Positioning seats 68 for fixing the liquid tank body 2 are slidably installed on the outer surface of the two crossbars 67. Bolts 69 are threaded to both ends of the positioning seats 68. By setting the positioning seats 68, the positioning seats 68 can be moved on the two crossbars 67 to clamp the two ends of the liquid tank body 2. Then, the bolts 69 are rotated to fix the two positioning seats 68.

[0035] The working principle of the non-destructive testing device for the inside of a liquid tank provided by this utility model is as follows:

[0036] By driving the threaded shaft 4 to rotate via the output shaft of servo motor 17, the lifting plate 5 on the threaded shaft 4 can move downwards, allowing the ultrasonic flaw detector 7 to enter the interior of the liquid tank body 2. Then, the sliding plate 19 is moved on the two smooth rods 18, allowing it to bring the ultrasonic flaw detector 7 into contact with the interior of the liquid tank. The bolt 20 is then turned to lock the sliding plate 19. Next, the output shaft of servo motor 11 drives the second gear rod 10 to rotate, allowing the second gear rod 10 to rotate and adjust the disc 9 at the first gear rod 8. The ultrasonic flaw detector 7 moves in a circular motion, allowing its probe head 23 to perform comprehensive non-destructive testing of the inside of the liquid tank. Simultaneously, the motor of the electric slide table 13 moves the electric slider 14 downwards along the electric slide table 13, allowing the ultrasonic flaw detector 7 to enter the bottom position inside the liquid tank. As the disc 9 rotates, the ultrasonic flaw detector 7 can rotate and adjust while performing non-destructive testing on the liquid tank, eliminating the need for repeated adjustments to the position of the ultrasonic flaw detector 7, saving time and effort, and thus enabling rapid non-destructive testing of the inside of the liquid tank, improving the efficiency of non-destructive testing.

[0037] By placing the ultrasonic flaw detector 7 above the telescopic plate 21, the two clamping plates 25, each equipped with a second spring 26, can clamp the two ends of the ultrasonic flaw detector 7 for initial positioning. Then, the two bolts 28 are rotated sequentially, causing the two clamping seats 29 to move and clamp the two ends of the flaw detector head 23. Subsequently, the top plate 32 is moved downwards to position it above the ultrasonic flaw detector 7. The bolt 33 is then rotated to lock the top plate 32, ensuring the stability of the ultrasonic flaw detector 7 during installation. The telescopic plate 21, equipped with a first spring 22, provides the flaw detector head 23 with a certain degree of elasticity, allowing it to fit elastically into the liquid tank without causing hard damage. This ensures the safety of the ultrasonic flaw detector 7 and extends its service life.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for non-destructive testing of the inside of a tank, comprising a base plate (1) and an ultrasonic testing device (7), characterized in that: The middle part of the bottom plate (1) upper side is placed with liquid tank body (2), the upper side of the bottom plate (1) is fixedly connected with the vertical plate (3), the inner side of the vertical plate (3) is rotatably connected with the threaded rotating shaft (4), the outer surface of the threaded rotating shaft (4) is threadedly connected with the lifting plate (5), the left side of the lifting plate (5) is fixedly installed with the fixed plate (6); The upper side of the fixed plate (6) is rotatably installed with the first gear rotating rod (8) and the second gear rotating rod (10), the lower side of the first gear rotating rod (8) is fixedly connected with the disc (9), the lower side of the disc (9) is fixedly installed with the connecting plate (12), one side of the connecting plate (12) is fixedly connected with the electric sliding table (13), one side of the electric sliding table (13) is fixedly provided with the electric sliding block (14), one side of the electric sliding block (14) is fixedly installed with the L-shaped plate (15), the L-shaped plate (15) and the electric sliding block (14) are fixedly connected with two smooth rods (18), the outer surface of the two smooth rods (18) is slidably installed with the sliding plate (19).

2. The liquid tank internal non-destructive inspection apparatus according to claim 1, wherein One side of the sliding plate (19) is slidably connected with the telescopic plate (21), the telescopic plate (21) penetrates through the sliding plate (19) and extends to the other side of the sliding plate (19), a first spring (22) is arranged between the telescopic plate (21) and the sliding plate (19), the sliding plate (19) is threadedly connected with the bolt four (20) for fixing the sliding plate (19), the ultrasonic flaw detector (7) is located above the telescopic plate (21), one side of the ultrasonic flaw detector (7) is fixedly connected with the flaw detection head (23).

3. The apparatus for non-destructive inspection of the inside of a liquid tank according to claim 2, wherein Two connecting rods (24) are fixedly installed in the telescopic plate (21), the outer surface of the two connecting rods (24) is slidably connected with two clamping plates (25) for fixing the ultrasonic flaw detector (7), two second springs (26) are fixedly installed between the two clamping plates (25), the inner side of the sliding plate (19) is fixedly connected with the vertical rod (31), the outer surface of the vertical rod (31) is slidably connected with the top plate (32) for fixing the ultrasonic flaw detector (7), one side of the top plate (32) is threadedly connected with the bolt two (33).

4. The apparatus for non-destructive inspection of the inside of a liquid tank according to claim 2, wherein The upper side of the telescopic plate (21) is fixedly connected with the U-shaped seat (27), the inside of the U-shaped seat (27) is threadedly connected with two symmetrically arranged bolt one (28), the inner side of the two bolt one (28) is fixedly provided with the clamping seat (29) for fixing the flaw detection head (23), two second limiting round rods (30) are fixedly connected on one side of the two clamping seats (29), the outer surface of the two second limiting round rods (30) is slidably connected with the inside of the U-shaped seat (27).

5. The apparatus for non-destructive inspection of the inside of a liquid tank according to claim 1, wherein The vertical plate (3) is located on the right side of the liquid tank body (2), the lower side of the first gear rotating rod (8) and the second gear rotating rod (10) penetrates through the fixed plate (6) and extends to the lower side of the fixed plate (6), the lower side of the second gear rotating rod (10) is fixedly connected with the servo motor one (11) through the motor mounting plate, and the first gear rotating rod (8) and the second gear rotating rod (10) are meshed with each other.

6. The apparatus of claim 1, wherein, The inner side of the vertical plate (3) is fixedly installed with two first limiting circular rods (16) which are arranged in parallel, the outer surfaces of the two first limiting circular rods (16) are slidably connected with the inside of the lifting plate (5), the upper side of the threaded rotating shaft (4) penetrates through the vertical plate (3) and extends to the upper side of the vertical plate (3), and the upper side of the threaded rotating shaft (4) is fixedly connected with the servo motor two (17) through the motor mounting plate.

7. The apparatus of claim 1, wherein, The upper side of the bottom plate (1) is fixedly installed with two mounting seats (66), the inside of each of the two mounting seats (66) is fixedly connected with two cross rods (67), the outer surfaces of the two cross rods (67) are slidably installed with positioning seats (68) for fixing the liquid tank body (2), and the two ends of the positioning seat (68) are threadedly connected with bolts three (69).

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