Ultrasonic flaw detection device

Abstract

The utility model discloses an ultrasonic flaw detection device which comprises a vehicle body, two sides of the vehicle body are respectively provided with two wheels which enable the vehicle body to move, the top of the vehicle body is provided with a support frame through a telescopic assembly, a cavity is formed in the support frame, and the bottom of the cavity is fixedly connected with a motor. A two-way threaded rod is fixed to one end of an output shaft of the motor through a coupler, two first sliding blocks are connected to the outer side of the two-way threaded rod in a threaded mode, rectangular grooves distributed in an up-down staggered mode are formed in the two sides of the supporting frame correspondingly, and the rectangular grooves communicate with the cavity. According to the ultrasonic flaw detection device, the distance between the first arc-shaped mounting frame and the second arc-shaped mounting frame can be changed to adapt to the straight welded pipes with different sizes, so that the straight welded pipes with different sizes can be accurately detected, the use effect of the ultrasonic flaw detection device is improved, the vehicle body can be jacked up, and the detection efficiency is improved. Therefore, the vehicle body can be prevented from moving, and the placement stability of the flaw detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to straight seam welded pipe detection technical field especially relates to an ultrasonic flaw detection device. BACKGROUND

[0002] The ultrasonic flaw detection device is a kind of equipment using ultrasonic technology to carry out nondestructive testing, mainly used to detect the defects in workpiece, such as crack, loose, blowhole, inclusion etc., and the weld of straight seam welded pipe needs to be detected after long time use to avoid cracking at weld.

[0003] Through the retrieval, the announcement number for CN214408796U, the announcement of an industrial ultrasonic flaw detection device, by controlling platform mobile vehicle platform to be close to the vertical plane of air pipeline, then control lifting platform makes the height of flaw detection bending frame and the object to be measured consistent, continue to translate vehicle platform, make the surface of both close and adhere, move vehicle body and the direction of the object to be detected consistent, open ultrasonic detection and move equipment, however, by the above-mentioned mode realizes the selection combination of different number of flaw detection straight frame structures, realizes the height of detection, in actual measurement, cannot carry out flaw detection to straight seam welded pipe of different size, when straight seam welded pipe is larger or smaller, flaw detection structure cannot adhere to the object to be measured, leading to the detection error or inaccurate result of straight seam welded pipe. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides an ultrasonic flaw detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An ultrasonic flaw detection device, comprising a vehicle body, both sides of the vehicle body are provided with two vehicle wheels for moving the vehicle body, a support frame is installed on the top of the vehicle body through an extension assembly, a cavity is formed in the support frame, a motor is fixedly connected to the bottom of the cavity, a double-threaded rod is fixed to one end of the output shaft of the motor through a shaft coupling, two first sliding blocks are threadedly connected to the outer side of the double-threaded rod, a plurality of rectangular grooves are formed in the two sides of the support frame and arranged in an upper and lower staggered manner, the rectangular grooves are in communication with the cavity, the two first sliding blocks pass through the two rectangular grooves respectively, so that the first sliding blocks move along the grooves, a first arc-shaped mounting bracket and a second arc-shaped mounting bracket are fixedly connected to one end of the two first sliding blocks respectively, an ultrasonic probe is fixedly connected to one side of each of the first arc-shaped mounting bracket and the second arc-shaped mounting bracket, and a support assembly is arranged on both sides of the vehicle body to lift the vehicle body.

[0007] As a further scheme of the utility model, the telescopic assembly comprises a hydraulic cylinder, the hydraulic cylinder is fixedly connected to the top of the vehicle body, one end of a piston rod of the hydraulic cylinder is fixedly connected with a fixed block, one side of the fixed block is fixedly connected with a connecting block, and the supporting frame is fixedly connected to one side of the connecting block.

[0008] As a further scheme of the utility model, the hydraulic cylinder is a rotary hydraulic cylinder.

[0009] As a further scheme of the utility model, the supporting assembly comprises two mounting blocks, the two mounting blocks are fixedly connected to the two sides of the vehicle body respectively, two ends of the two mounting blocks are both provided with a sliding groove, a second sliding block is slidably connected in the sliding groove, a jack is fixedly connected to the bottom of the second sliding block and located outside the sliding groove, and the top of the two mounting blocks is provided with a locking assembly for fixing the second sliding block.

[0010] As a further scheme of the utility model, the locking assembly comprises two groups of jacks, the two groups of jacks are both provided in the top of the mounting block, the two groups of jacks are respectively connected with the two sliding grooves, two groups of screws are inserted in the two groups of jacks, four groups of threaded holes are provided in the top of the second sliding block, and the screws are screwed with the threaded holes.

[0011] As a further scheme of the utility model, the number of the two groups of jacks and the four groups of threaded holes is both two.

[0012] As a further scheme of the utility model, the top of the vehicle body is fixedly connected with a vehicle-mounted platform, and the top of the vehicle-mounted platform is provided with a control console.

[0013] The utility model has the advantages of:

[0014] 1. Through the cooperation of the bidirectional threaded rod and the first sliding block, rotating the bidirectional threaded rod, the bidirectional threaded rod drives the two first sliding blocks to move towards each other along the rectangular groove, the two first sliding blocks drive the first arc-shaped mounting bracket and the second arc-shaped mounting bracket to move towards each other, thereby changing the distance between the first arc-shaped mounting bracket and the second arc-shaped mounting bracket, adapting to different sizes of straight seam welded pipes, and thus the different sizes of straight seam welded pipes can be accurately detected, and the use effect of the ultrasonic flaw detection device is improved.

[0015] 2. Through the arrangement of the supporting assembly, when the flaw detection device does not need to be used, the vehicle body can be lifted by the supporting assembly, so that the movement of the vehicle body is avoided, and the stability of the placement of the flaw detection device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A facade structure diagram of the utility model is provided.

[0017] Fig. 2 A back structure schematic view of an ultrasonic flaw detection device is provided in the utility model.

[0018] Fig. 3 A side structure schematic view of an ultrasonic flaw detection device is provided in the utility model.

[0019] In the drawing: 1, vehicle body; 2, vehicle-mounted platform; 3, control console; 4, fixed block; 5, connecting block; 6, support frame; 7, first arc-shaped mounting bracket; 8, ultrasonic probe; 9, second arc-shaped mounting bracket; 10, mounting block; 11, jack; 12, wheel; 13, first sliding block; 14, rectangular groove; 15, two-way threaded rod; 16, screw; 17, threaded hole; 18, sliding groove; 19, second sliding block; 20, hydraulic cylinder. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Referring to Figs. 1-3An ultrasonic flaw detection device, including a vehicle body 1, both sides of the vehicle body 1 are provided with two vehicle wheels 12 for moving the vehicle body 1, the top of the vehicle body 1 is provided with a support frame 6 through a telescopic assembly, the support frame 6 is provided with a cavity, the bottom of the cavity is fixed with a motor through bolts, one end of the motor output shaft is fixed with a two-way threaded rod 15 through a shaft coupling, the outer side of the two-way threaded rod 15 is connected with two first sliding blocks 13, both sides of the support frame 6 are provided with upper and lower staggered rectangular grooves 14, and the rectangular grooves 14 are communicated with the cavity, the two first sliding blocks 13 pass through the two rectangular grooves 14 respectively, so that the first sliding block 13 moves along the groove of the rectangular groove 14, one end of the two first sliding blocks 13 is fixed with a first arc-shaped mounting bracket 7 and a second arc-shaped mounting bracket 9 through bolts respectively, one side of the first arc-shaped mounting bracket 7 and the second arc-shaped mounting bracket 9 is fixed with an ultrasonic probe 8 through bolts, the model of the ultrasonic probe 8 is 1P20N, both sides of the vehicle body 1 are provided with a support assembly for lifting the vehicle body 1, the motor is started, the motor drives the two-way threaded rod 15 to rotate, the two-way threaded rod 15 drives the two first sliding blocks 13 to move towards each other along the rectangular groove 14 through the engagement between the two first sliding blocks 13, the two first sliding blocks 13 drive the first arc-shaped mounting bracket 7 and the second arc-shaped mounting bracket 9 to move towards each other respectively, so as to change the distance between the first arc-shaped mounting bracket 7 and the second arc-shaped mounting bracket 9, so that the ultrasonic probe 8 on the first arc-shaped mounting bracket 7 and the second arc-shaped mounting bracket 9 is close to the straight seam welded pipe, the ultrasonic probe 8 can accurately detect the weld of the straight seam welded pipe, and the ultrasonic flaw detection device can be adapted to different sizes of straight seam welded pipes, so that the straight seam welded pipes of different sizes can be accurately detected, and the use effect of the ultrasonic flaw detection device is improved.

[0022] In the utility model, the telescopic assembly includes hydraulic cylinder 20, hydraulic cylinder 20 is fixed on the top of the vehicle body 1 through bolts, one end of the piston rod of hydraulic cylinder 20 is fixed with fixed block 4 through bolts, one side of fixed block 4 is fixed with connecting block 5 through bolts, support frame 6 is fixed on one side of connecting block 5 through bolts, hydraulic cylinder 20 is rotary hydraulic cylinder, hydraulic cylinder 20 is started, hydraulic cylinder 20 drives fixed block 4 to move upwards, fixed block 4 drives connecting block 5 to move, connecting block 5 drives support frame 6 to move upwards, support frame 6 drives first arc-shaped mounting bracket 7 and second arc-shaped mounting bracket 9 to move upwards through first sliding block 13, so that first arc-shaped mounting bracket 7 and second arc-shaped mounting bracket 9 are moved to the same height as the straight seam welded pipe, then the vehicle body 1 is moved through vehicle wheel 12, so that the straight seam welded pipe enters first arc-shaped mounting bracket 7 and second arc-shaped mounting bracket 9, then the vehicle body 1 is turned and the piston rod of hydraulic cylinder 20 is rotated by ninety degrees, so that first arc-shaped mounting bracket 7 and second arc-shaped mounting bracket 9 are distributed at right angles with the vehicle body 1, and in the process of detecting the weld, the vehicle body 1 can move linearly through vehicle wheel 12, so that the whole weld of the straight seam welded pipe is detected;

[0023] In particular, the supporting assembly comprises two mounting blocks 10 fixed on the two sides of the vehicle body 1 by bolts, two ends of the two mounting blocks 10 are provided with sliding grooves 18, second sliding blocks 19 are slidably connected in the sliding grooves 18, the bottoms of the second sliding blocks 19 are fixed with jacks 11 by bolts outside the sliding grooves 18, the top of each of the two mounting blocks 10 is provided with a locking assembly for fixing the second sliding block 19, the locking assembly comprises two groups of insertion holes, the two groups of insertion holes are provided on the top of the mounting block 10 and are communicated with the two sliding grooves 18 respectively, the two groups of insertion holes are inserted with screws 16, the top of the second sliding block 19 is provided with four threaded holes 17, the screws 16 are screwed with the threaded holes 17, when not in use, the second sliding block 19 is moved out of the sliding groove 18, after the second sliding block 19 is moved to the appropriate position, the screws 16 are connected with the corresponding threaded holes 17, so that the position of the second sliding block 19 is fixed, at this time, the jack 11 can be started to lift the vehicle body 1, so that the wheels 12 are separated from the ground, thereby avoiding the movement of the vehicle body 1, improving the stability of the flaw detection device, the number of the two groups of insertion holes and the four threaded holes 17 is two, the top of the vehicle body 1 is fixed with a vehicle-mounted platform 2 by bolts, the top of the vehicle-mounted platform 2 is provided with a control console 3.

[0024] Working principle: when in use, the hydraulic cylinder 20 is started to move the fixed block 4 upward, the fixed block 4 drives the connecting block 5 to move, the connecting block 5 drives the support frame 6 to move upward, the support frame 6 drives the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9 to move upward through the first sliding block 13, so that the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9 are moved to the same height as the straight seam welded pipe, then the vehicle body 1 is moved by the wheels 12, so that the straight seam welded pipe enters the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9, then the vehicle body 1 is turned and the piston rod of the hydraulic cylinder 20 is rotated by ninety degrees, so that the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9 are distributed at right angles with the vehicle body 1, then the motor is started, the motor drives the bidirectional threaded rod 15 to rotate, the bidirectional threaded rod 15 drives the two first sliding blocks 13 to move towards each other along the rectangular slot 14 through the engagement between the bidirectional threaded rod 15 and the two first sliding blocks 13, the two first sliding blocks 13 drive the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9 to move towards each other respectively, so as to change the distance between the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9, so that the ultrasonic probes 8 on the first arc-shaped mounting frame 7 and the second arc-shaped mounting frame 9 are close to the straight seam welded pipe, so that the ultrasonic probes 8 accurately detect the weld of the straight seam welded pipe, which can adapt to straight seam welded pipes of different sizes, so as to accurately detect straight seam welded pipes of different sizes, improve the use effect of the ultrasonic flaw detection device, and at the same time, the vehicle body 1 can be moved linearly by the wheels 12, so as to detect the entire weld of the straight seam welded pipe.

[0025] Furthermore, although embodiments of the present application have been shown and described, it is to be understood that many additions, modifications, substitutions, and improvements can be made by those skilled in the art without extending the scope of the application as defined by the appended claims and their equivalents.

Claims

1. An ultrasonic flaw detection device comprising a vehicle body (1), two wheels (12) for moving the vehicle body (1) are arranged on both sides of the vehicle body (1), characterized in that, The top of the vehicle body (1) is provided with a support frame (6) through a telescopic assembly, a cavity is formed in the support frame (6), a motor is fixedly connected to the bottom of the cavity, one end of the output shaft of the motor is fixedly connected with a bidirectional threaded rod (15) through a shaft coupling, two first sliding blocks (13) are threadedly connected to the outer side of the bidirectional threaded rod (15), two rectangular grooves (14) are formed in the two sides of the support frame (6) and communicate with the cavity, the two first sliding blocks (13) pass through the two rectangular grooves (14) respectively, so that the first sliding blocks (13) move along the grooves of the rectangular grooves (14), one end of each of the two first sliding blocks (13) is fixedly connected with a first arc-shaped mounting bracket (7) and a second arc-shaped mounting bracket (9), one side of each of the first arc-shaped mounting bracket (7) and the second arc-shaped mounting bracket (9) is fixedly connected with an ultrasonic probe (8), and the two sides of the vehicle body (1) are provided with a supporting assembly for lifting the vehicle body (1).

2. An ultrasonic inspection apparatus according to claim 1, wherein The telescopic assembly comprises a hydraulic cylinder (20), the hydraulic cylinder (20) is fixedly connected to the top of the vehicle body (1), one end of the piston rod of the hydraulic cylinder (20) is fixedly connected with a fixed block (4), one side of the fixed block (4) is fixedly connected with a connecting block (5), and the support frame (6) is fixedly connected to one side of the connecting block (5).

3. An ultrasonic inspection apparatus according to claim 2, wherein The hydraulic cylinder (20) is a rotary hydraulic cylinder.

4. The ultrasonic inspection apparatus of claim 1 wherein, The supporting assembly comprises two mounting blocks (10), the two mounting blocks (10) are fixedly connected to the two sides of the vehicle body (1), respectively, two ends of each of the two mounting blocks (10) are provided with a sliding groove (18), a second sliding block (19) is slidably connected in the sliding groove (18), the bottom of the second sliding block (19) is fixedly connected with a jack (11) at a position outside the sliding groove (18), and the top of each of the two mounting blocks (10) is provided with a locking assembly for fixing the second sliding block (19).

5. An ultrasonic inspection apparatus according to claim 4, wherein The locking assembly comprises two groups of insertion holes, the two groups of insertion holes are formed in the top of the mounting block (10), the two groups of insertion holes respectively communicate with the two sliding grooves (18), and the two groups of insertion holes are respectively inserted with screws (16), the top of the second sliding block (19) is provided with four threaded holes (17), and the screws (16) are threadedly connected with the threaded holes (17).

6. An ultrasonic inspection apparatus according to claim 5, wherein The number of the two groups of insertion holes and the four groups of threaded holes (17) is two.

7. The ultrasonic inspection apparatus of claim 1 wherein, The top of the vehicle body (1) is fixedly connected with a vehicle-mounted platform (2), and the top of the vehicle-mounted platform (2) is provided with a control console (3).

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