A non-destructive testing device for round tube metal materials

Abstract

This invention relates to the field of nondestructive testing equipment technology, and discloses a nondestructive testing device for round tube metal materials, including a base, a swing block, and an ultrasonic testing instrument. The base has a slot at its top, and two sets of fixed shafts are fixedly connected to the left and right sides of the slot, arranged front and rear. A drive motor output shaft drives a lead screw to rotate, which in turn drives a drive roller to rotate. With the cooperation of the two sets of tension rollers, the transmission belt rotates, causing the metal ring at the bottom to rotate on top of the guide rollers. During the start-up of the ultrasonic testing instrument and the rotation of the lead screw, the swing block is subjected to the threaded thrust of the threaded hole, causing it to slide along the two sets of guide rods. This drives the ultrasonic testing instrument located at the bottom of the swing block to move synchronously, performing ultrasonic crack detection on the rotating metal ring at its bottom. Compared with existing technologies, this improves the efficiency of crack detection for round metal tubes.

Description

Technical Field

[0001] This invention relates to the field of nondestructive testing equipment technology, specifically to a nondestructive testing equipment for round tube metal materials. Background Technology

[0002] During the welding of metal round tubes, under the pressure of hydrogen gas, adjacent hydrogen bubbling cracks on different levels connect with each other, forming internal cracks with a stepped feature known as hydrogen-induced cracking (HIC). Cracks can sometimes extend to the metal surface. HIC does not require external stress and is generally related to the irregular microstructure caused by high-density large planar inclusions in the steel or the segregation of alloying elements in the steel. Therefore, after welding metal round tube materials, crack detection is usually required, and ultrasonic testing is currently the most commonly used method.

[0003] Existing non-destructive testing equipment for round tube metal materials typically employs a fixed-point testing method, rather than adjusting the testing position while the metal tube is fixed in place. This results in poor flexibility and inconvenience of use, leading to low testing efficiency for metal materials. Summary of the Invention

[0004] This invention provides a non-destructive testing device for round tube metal materials, which has the advantage of high-efficiency testing of key metals. It solves the problem that existing non-destructive testing devices for round tube metal materials usually adopt a fixed-point testing method for metal pipes, and cannot adjust the testing position during the fixing process of the metal pipes. This results in poor flexibility and inconvenience of use, thus causing low testing efficiency for metal materials.

[0005] The present invention provides the following technical solution: a non-destructive testing device for round tube metal materials, comprising a base, a swing block and an ultrasonic testing instrument. The top of the base has a slot, and two sets of fixed shafts distributed front and back are fixedly connected to the left and right sides of the slot. Two sets of guide rollers distributed left and right are rotatably connected to the outside of the fixed shafts. A fixed platform is fixedly connected to one side of the top of the base. Two sets of electro-hydraulic rods distributed front and back are fixedly installed on the top of the fixed platform. A lifting platform is movably installed on the top of the base. A driving mechanism and a connecting block are movably installed on the base. The connecting block is located on one side of the driving mechanism.

[0006] Preferably, the fixed base is L-shaped, the output ends of the two sets of electro-hydraulic rods move through the fixed base, and the bottom of the output ends of the two sets of electro-hydraulic rods are fixedly connected to a thrust rod, and the top of the two sets of thrust rods are fixedly connected to a lifting platform. A rectangular slot is opened through the top of the lifting platform, and bearing seats are fixedly connected to both sides of the opening of the rectangular slot on the top of the lifting platform.

[0007] Preferably, the driving mechanism includes a drive motor, which is fixedly mounted on the middle of the outer side of the lifting platform. The output shaft of the drive motor is fixedly connected to a lead screw via a connector. The lead screw movably passes through two sets of bearing seats. Threaded holes are provided in the middle of the left and right sides of the swing block. The swing block is threadedly connected to the lead screw through the threaded holes. An ultrasonic detector is fixedly mounted at the bottom of the swing block. An active belt roller is fixedly sleeved on the outside of the lead screw. The active belt roller is located between the two sets of bearing seats.

[0008] Preferably, a connecting block is fixedly connected to the top of the lifting platform near the ultrasonic detector. The connecting block is movably sleeved around the lead screw, and the connecting block and the lead screw are in clearance fit. Two sets of guide rods distributed front and back are fixedly connected to the side of the connecting block near the ultrasonic detector, and the two sets of guide rods are distributed around the lead screw. Two sets of sliding holes distributed front and back are opened on the left and right sides of the swing block, and the guide rods are slidably connected to the sliding holes.

[0009] Preferably, the bottom of the lifting platform is fixedly connected to two sets of front-to-back fixed seats, which are located on both sides of the outer perimeter of the rectangular groove. The inner sides of the two sets of fixed seats are fixedly connected to two sets of left-to-right guide rails. The bottom of the lifting platform is slidably provided with two sets of tensioning blocks, which are located between the two sets of fixed seats. The front of the tensioning block is provided with two sets of left-to-right guide holes, which are movably fitted outside the guide rails. The side of the tensioning block near the fixed seat is fixedly connected to two sets of left-to-right tensioning springs, and one end of the tensioning spring is fixedly connected to the inner side of the fixed seat.

[0010] Preferably, the bottom of the tensioning block is rotatably connected to a tensioning belt roller via a pin, and a transmission belt is sleeved around the two sets of tensioning belt rollers. The transmission belt is movably inserted through a rectangular groove and sleeved on the outer wall of the drive belt roller. The transmission belt is located between the two sets of guide rails.

[0011] Preferably, a stop block is fixedly connected to the end of each of the two sets of guide rods away from the connecting block, and the inner side of the stop block is rotatably connected to one end of the lead screw.

[0012] Preferably, a ball bearing is provided between the lead screw and the two sets of bearing seats.

[0013] The present invention has the following beneficial effects:

[0014] 1. This non-destructive testing equipment for round tube metal materials drives a lead screw to rotate via the output shaft of a drive motor, which in turn drives the active belt roller to rotate. With the cooperation of two sets of tensioning belt rollers, the transmission belt rotates, causing the bottom metal ring to rotate on top of each set of guide rollers. During the start-up of the ultrasonic testing instrument and the rotation of the lead screw, the screw is subjected to the threaded thrust of the threaded hole, causing the swing block to slide along the two sets of guide rods. This drives the ultrasonic testing instrument located at the bottom of the swing block to move synchronously, performing ultrasonic crack detection on the rotating metal ring at its bottom. Compared with existing technologies, this improves the efficiency of crack detection for round metal tubes.

[0015] 2. This non-destructive testing equipment for round tube metal materials uses two sets of electric hydraulic rods to drive two sets of thrust rods to move downwards, thereby driving the lifting platform to move synchronously until the bottom of the transmission belt abuts against the top of the outer edge of the metal tube. Then, it continues to move downwards a suitable height, so that the transmission belt wraps around an appropriate area of ​​the top of the outer edge of the metal tube, thereby limiting the metal tube and preventing it from falling off.

[0016] 3. This non-destructive testing equipment for round tube metal materials, after the test is completed, drives two sets of thrust rods to move upward through two sets of electric hydraulic rods, which in turn moves the lifting platform upward, so that the transmission belt is released from contact with the metal tube, thus making it easy to remove the metal tube for daily use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a partial structural diagram of the present invention;

[0019] Figure 3 This is a top-view structural diagram of the driving component and the swing component in this invention;

[0020] Figure 4 This is a schematic diagram of the bottom view structure of the driving component and the swing component in this invention;

[0021] Figure 5 for Figure 4 A partially enlarged structural diagram of A in this invention;

[0022] Figure 6 This is a schematic diagram of the structure of the swing block and ultrasonic detector in this invention.

[0023] In the diagram: 1. Base; 2. Fixed shaft; 3. Fixed platform; 4. Electro-hydraulic rod; 5. Lifting platform; 6. Drive mechanism; 7. Connecting block; 8. Swinging block; 9. Ultrasonic detector; 10. Fixed seat; 101. Groove; 201. Guide roller; 401. Thrust rod; 501. Rectangular groove; 502. Bearing seat; 601. Drive motor; 602. Lead screw; 603. Drive roller; 701. Guide rod; 702. Stop block; 801. Sliding hole; 802. Threaded hole; 1001. Guide rail; 1002. Tensioning block; 1003. Guide hole; 1004. Tensioning spring; 1005. Tensioning roller; 1006. Transmission belt. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-6 A non-destructive testing device for round tube metal materials includes a base 1, a swing block 8, and an ultrasonic testing instrument 9. The base 1 has a slot 101 at its top. Two sets of fixed shafts 2, distributed front to back, are fixedly connected to the left and right sides of the slot 101. Two sets of guide rollers 201, distributed left to right, are rotatably connected to the outside of each fixed shaft 2. A fixed platform 3 is fixedly connected to one side of the top of the base 1. Two sets of electro-hydraulic rods 4, distributed front to back, are fixedly fixed to the top of the fixed platform 3. A lifting platform 5 is movably mounted on the top of the base 1. A drive mechanism 6 and a connecting block 7 are movably mounted on the base 1. The connecting block 7 is located on one side of the drive mechanism 6. In use, the metal tube to be tested is first placed on the top of the base 1, inside the slot 101, so that the outer edge of the metal tube contacts the outer edge of each set of guide rollers 201. The guide rollers 201 support the metal tube and guide its rotation. The lifting platform 5 is used to fix and install the drive mechanism 6 and the swing mechanism 7.

[0026] In this embodiment, the fixed base 3 is L-shaped, and the output ends of the two sets of electric hydraulic rods 4 movably pass through the fixed base 3. The bottom of the output ends of the two sets of electric hydraulic rods 4 are fixedly connected to the thrust rods 401, and the top of the two sets of thrust rods 401 are fixedly connected to the lifting platform 5. The top of the lifting platform 5 has a rectangular slot 501. On both sides of the opening of the rectangular slot 501, the top of the lifting platform 5 is fixedly connected to the bearing seats 502. The output ends of the electric hydraulic rods 4 drive the thrust rods 401 to move, thereby causing the lifting platform 5 to move down or up to reset.

[0027] In this embodiment, the driving mechanism 6 includes a driving motor 601, which is fixedly mounted on the middle of the outer side of the lifting platform 5. The output shaft of the driving motor 601 is fixedly connected to a lead screw 602 via a connector. The lead screw 602 movably passes through two sets of bearing seats 502. Threaded holes 802 are provided in the middle of the left and right sides of the swing block 8. The swing block 8 is threadedly connected to the lead screw 602 through the threaded holes 802. An ultrasonic detector 9 is fixedly mounted at the bottom of the swing block 8. An active belt roller 603 is fixedly sleeved on the outside of the lead screw 602. The active belt roller 603 is located between the two sets of bearing seats 502. The driving motor 601 provides driving force, causing its output shaft to drive the lead screw 602 to rotate. Under the action of the threaded thrust of the threaded hole 802, the swing block 8 is driven to move, which drives the ultrasonic detector 9 fixed at the bottom of the swing block 8 to move synchronously, performing ultrasonic crack detection on the metal pipe. Compared with the prior art, this improves the crack detection effect on metal round pipes.

[0028] In this embodiment, a connecting block 7 is fixedly connected to the top of the lifting platform 5 near the ultrasonic detector 9. The connecting block 7 is movably sleeved around the lead screw 602, and the connecting block 7 and the lead screw 602 are in clearance fit. Two sets of guide rods 701 distributed front and back are fixedly connected to the side of the connecting block 7 near the ultrasonic detector 9, and the two sets of guide rods 701 are distributed around the lead screw 602. Two sets of sliding holes 801 distributed front and back are opened on the left and right sides of the swing block 8. The guide rods 701 are slidably connected to the sliding holes 801. By setting the connecting block 7, the guide rods 701 are rigidly connected to the lifting platform 5, so that the two sets of guide rods 701 play a sliding guiding role for the swing block 8, thereby improving the sliding stability of the swing block 8 and enhancing the operating stability of the equipment.

[0029] In this embodiment, the bottom of the lifting platform 5 is fixedly connected to two sets of front-to-back fixed seats 10. The two sets of fixed seats 10 are located on both sides of the outer perimeter of the rectangular groove 501. The inner sides of the two sets of fixed seats 10 are fixedly connected to two sets of left-to-right distributed guide rails 1001. The bottom of the lifting platform 5 is slidably provided with two sets of tensioning blocks 1002, which are located between the two sets of fixed seats 10. The front of the tensioning block 1002 is provided with two sets of left-to-right distributed guide holes 100. 3. The guide holes 1003 are respectively movably sleeved on the outside of the guide rails 1001. Two sets of tension springs 1004 are fixedly connected to the side of the tension block 1002 near the fixed seat 10. One end of the tension spring 1004 is fixedly connected to the inner side of the fixed seat 10. By setting two sets of fixed seats 10, the two sets of guide rails 1001 are rigidly connected to the lifting platform 5. By setting two sets of guide rails 1001, the two sets of tension blocks 1002 are slidably guided.

[0030] In this embodiment, the bottom of the tensioning block 1002 is rotatably connected to a tensioning roller 1005 via a pin. A transmission belt 1006 is sleeved around the two sets of tensioning rollers 1005. The transmission belt 1006 movably passes through a rectangular groove 501 and is sleeved on the outer wall of the drive roller 603. The transmission belt 1006 is located between two sets of guide rails 1001. The output end of the electro-hydraulic rod 4 drives the two sets of thrust rods 401 to move downwards, thereby causing the lifting platform 5 to move synchronously until the bottom of the transmission belt 1006 abuts against the top of the outer edge of the metal tube, after which it continues to move downwards a suitable height, thus enabling the transmission... After the belt 1006 is wrapped around the top of the metal tube at an appropriate area, the two sets of tensioning blocks 1002 slide along the guide rail 1001 toward the middle, causing the tension spring 1004 to be stretched and generate elastic force, thereby pulling the two sets of tensioning blocks 1002 outward to tension the transmission belt 1006. Then, the drive motor 601 is started, and the output shaft of the drive motor 601 drives the lead screw 602 to rotate, which drives the drive roller 603 to rotate. Then, with the cooperation of the two sets of tensioning rollers 1005, the transmission belt 1006 rotates, thereby driving the bottom metal circle to rotate on the top of each set of guide rollers 201.

[0031] In this embodiment, a stop block 702 is fixedly connected to one end of the two sets of guide rods 701 away from the connecting block 7. The inner side of the stop block 702 is rotatably connected to one end of the lead screw 602. By setting the stop block 702, the swing block 8 is slidably limited, preventing the swing block 8 from slipping off the end of the guide rod 701, thereby improving the stability of the equipment operation.

[0032] In this embodiment, a ball bearing is provided between the lead screw 602 and the two sets of bearing seats 502. By providing the ball bearing, the rotational smoothness of the lead screw 602 is improved, the rotational efficiency of the lead screw 602 is increased, and the energy consumption of the drive motor 601 is reduced.

[0033] Working principle: In use, the metal tube to be tested is first placed on top of the base 1, inside the slot 101, so that the outer edge of the metal tube contacts the outer edge of each set of guide rollers 201. Then, the two sets of electric hydraulic rods 4 are activated, so that the output ends of the two sets of electric hydraulic rods 4 drive the two sets of thrust rods 401 to move downward, thereby driving the lifting platform 5 to move synchronously until the bottom of the transmission belt 1006 abuts against the top of the outer edge of the metal tube. Then, it continues to move downward a suitable height, so that the transmission belt 1006 wraps around the top of the outer edge of the metal tube to a suitable area. During this period, the two sets of tensioning blocks 1002 slide along the guide rail 1001 towards the middle, so that the tension spring 1004 is stretched to generate elastic force, thereby pulling the two sets of tensioning blocks 1002 outward to tension the transmission belt 1006. Then, the drive motor 601 is started, driving the transmission belt 1006 to move downward. The output shaft of the motor 601 drives the lead screw 602 to rotate, which in turn drives the drive roller 603 to rotate. With the cooperation of the two sets of tension rollers 1005, the transmission belt 1006 rotates, thereby causing the metal ring at the bottom to rotate on top of each set of guide rollers 201. During the operation of the ultrasonic detector 9 and the rotation of the lead screw 602, the screw is pushed by the threaded hole 802, causing the swing block 8 to slide along the two sets of guide rods 701. This drives the ultrasonic detector 9 located at the bottom of the swing block 8 to move synchronously, performing ultrasonic crack detection on the rotating metal ring at its bottom. After the detection is completed, the two sets of electric hydraulic rods 4 drive the two sets of thrust rods 401 to move upward, thereby driving the lifting platform 5 to move upward, so that the transmission belt 1006 is released from contact with the metal tube, and the metal tube can be removed.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for round pipe metal material, comprising a base (1), a swing block (8) and an ultrasonic detector (9), characterized in that: The base (1) top is provided with notched (101), the notched (101) left side and right side are all fixedly connected with two groups of front and back distribution fixed shaft body (2), the fixed shaft body (2) outside are all rotatably connected with two groups of left and right distribution guide roller (201), the base (1) top one side is fixedly connected with fixed pedestal (3), the fixed pedestal (3) top is fixedly provided with two groups of front and back distribution electric hydraulic rod (4), the base (1) top is movably provided with lifting frame (5), the lifting frame (5) bottom is fixedly connected with two groups of front and back distribution fixed seat (10), two groups of fixed seat (10) are located at the outer periphery of rectangular groove (501) both sides, two groups of fixed seat (10) inner side are fixedly connected with two groups of left and right distribution guide rail (1001), the lifting frame (5) bottom is slidably provided with two groups of tensioning block (1002), two groups of tensioning block (1002) are located between two groups of fixed seat (10), the tensioning block (1002) front is throughly provided with two groups of left and right distribution guide hole (1003), the guide hole (1003) is movably sleeved at the outside of guide rail (1001), the tensioning block (1002) one side close to fixed seat (10) is all fixedly connected with two groups of left and right distribution tensioning spring (1004), the tensioning spring (1004) one end is fixedly connected with fixed seat (10) inner side, the tensioning block (1002) bottom is rotatably connected with tensioning belt roller (1005) through pin shaft, two groups of tensioning belt roller (1005) outer periphery are sleeved with transmission belt (1006), the transmission belt (1006) is movably through rectangular groove (501) and is sleeved on the outer wall of driving belt roller (603), the transmission belt (1006) is located between two groups of guide rail (1001), the base (1) is movably provided with drive mechanism (6) and connecting block (7), the connecting block (7) is located at one side of drive mechanism (6).

2. A device for non-destructive testing of a round tube metal material according to claim 1, characterized in that: The fixed pedestal (3) is L-shaped, two groups of electric hydraulic rod (4) output end movably penetrates fixed pedestal (3), and the bottom of two groups of electric hydraulic rod (4) output end is fixedly connected with push rod (401), and the top of two groups of push rod (401) is fixedly connected with lifting frame (5), the lifting frame (5) top is throughly provided with rectangular groove (501), the lifting frame (5) top, both sides of rectangular groove (501) opening are all fixedly connected with bearing seat (502).

3. A device for non-destructive testing of a round tube metal material according to claim 1, characterized in that: The driving mechanism (6) includes a driving motor (601), the driving motor (601) is fixed in the outer side middle part of the lifting frame (5), and the output shaft end of the driving motor (601) is fixedly connected with a lead screw (602) through a connector, the lead screw (602) movably penetrates two groups of bearing seats (502), the swing block (8) is provided with a threaded hole (802) in the middle part of the left side and the right side, the swing block (8) is screwed with the lead screw (602) through the threaded hole (802), the bottom of the swing block (8) is fixedly provided with an ultrasonic detector (9), the outer part of the lead screw (602) is fixedly provided with a driving belt roller (603), and the driving belt roller (603) is located between the two groups of bearing seats (502).

4. A device for non-destructive testing of a round tube metal material according to claim 2, characterized in that: The lifting frame (5) is fixedly connected with a connecting block (7) on the top of the side close to the ultrasonic detector (9), the connecting block (7) is movably sleeved on the outer periphery of the lead screw (602), and the connecting block (7) is in gap cooperation with the lead screw (602), the connecting block (7) is fixedly connected with two groups of front and rear distributed guide rods (701) on the side close to the ultrasonic detector (9), and the two groups of guide rods (701) are distributed on the outer periphery of the lead screw (602), the left side and the right side of the swing block (8) are provided with two groups of front and rear distributed sliding holes (801), and the guide rods (701) are slidably connected with the sliding holes (801).

5. A device for non-destructive testing of a circular pipe metal material according to claim 4, characterized in that: The two groups of guide rods (701) are fixedly connected with stop blocks (702) at the ends away from the connecting block (7), and the inner side of the stop block (702) is rotatably connected with one end of the lead screw (602).

6. A device for non-destructive testing of a round tube metal material according to claim 3, characterized in that: Ball bearings are arranged between the lead screw (602) and the two groups of bearing seats (502).

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