An automatic flaw detection device for a coupling

Abstract

The utility model relates to an automatic flaw detection device for coupling, including water tank, water tank is equipped with rotating mechanism, rotating mechanism is used for supporting and driving coupling rotation, water tank outside is equipped with flaw detector drive mechanism, and flaw detector drive mechanism includes support beam, and the track of support beam is equipped with along X axle arrangement, and the track is equipped with sliding support, and the track one side is equipped with linear drive mechanism, and linear drive mechanism is connected with sliding support, and sliding support is equipped with the support arm of extending to water tank along Y axle direction, and the support arm is equipped with the support rod of extending to water tank downward along Z axle to correspond to rotating mechanism department on, and support rod is equipped with cantilever, and the outer end of cantilever is equipped with ultrasonic probe, the utility model discloses have realized fast, automatic flaw detection, and can guarantee to detect all parts of coupling, avoid missing detection part.

Description

Technical Field

[0001] This utility model relates to the field of coupling production technology, specifically an automatic flaw detection device for couplings. Background Technology

[0002] Couplings are connecting components between pipes, used in oilfield production pipes or other media transportation pipelines. Couplings are cylindrical in shape with steps on the inner wall for connection. Oilfield transportation pipelines have a certain pressure, so couplings cannot have defects such as cracks. To ensure product quality, couplings need to be inspected after processing. Currently, the most common methods are magnetic particle inspection or ultrasonic inspection. Manually holding an ultrasonic flaw detector to inspect couplings is inefficient and cannot guarantee that all parts of the coupling will be detected, and there may be missed areas. Therefore, it is necessary to develop a fast and comprehensive flaw detection device. Summary of the Invention

[0003] The main purpose of this utility model is to solve the problems existing in the prior art and provide an automatic flaw detection device for couplings.

[0004] The specific solution of this utility model is an automatic flaw detection device for couplings, including a water tank, a rotating mechanism installed inside the water tank, the rotating mechanism being used to support and drive the coupling to rotate, a flaw detector drive mechanism being provided on the outside of the water tank, the flaw detector drive mechanism including a support beam, a track arranged along the X-axis on the support beam, a sliding bracket mounted on the track, a linear drive mechanism mounted on one side of the track, the linear drive mechanism being connected to the sliding bracket, a support arm extending along the Y-axis and into the water tank mounted on the sliding bracket, a support rod extending downward along the Z-axis into the water tank mounted on the support arm corresponding to the rotating mechanism, a cantilever mounted on the support rod, and an ultrasonic probe mounted on the outer end of the cantilever.

[0005] Furthermore, the rotating mechanism includes two sets of support rollers, one end of the roller shaft of each set of support rollers extends outward into the water tank, and a motor A is connected to the outer end of the roller shaft.

[0006] Furthermore, each of the two sets of support rollers has a transmission gear mounted on its outer end, and the output end of the motor A is equipped with a drive gear, which meshes with both transmission gears simultaneously.

[0007] Furthermore, the sliding bracket is equipped with a guide rail arranged along the Z-axis, the support arm is slidably connected to the guide rail, and the sliding bracket is equipped with a lifting drive mechanism, which is connected to the support arm to drive the support arm to move up and down along the guide rail.

[0008] Furthermore, the lifting drive mechanism includes a motor B, the output end of which is equipped with a lead screw arranged along the Z-axis, and a connecting block is installed on the side of the support arm, the connecting block being threadedly connected to the lead screw.

[0009] Furthermore, a cylinder is mounted on the support rod, the cylinder body is rotatably connected to the support rod, the end of the piston rod of the cylinder is hinged to the middle of the cantilever, one end of the cantilever is rotatably connected to the support rod, and the cylinder is used to adjust the angle of the cantilever and thus adjust the height position of the ultrasonic probe.

[0010] Compared with the prior art, this utility model has the following advantages: it realizes rapid and automatic flaw detection, and can ensure that all parts of the mating hoop are detected, avoiding missed parts. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0012] Figure 2 This is a three-dimensional view of the present invention from another perspective;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 yes Figure 3 AA view;

[0015] Figure 5 yes Figure 3 BB view;

[0016] In the diagram: 1. Water tank; 2. Rotating mechanism; 21. Drive gear; 22. Motor A; 23. Transmission gear; 24. Support roller; 3. Flaw detector drive mechanism; 31. Support beam; 32. Linear drive mechanism; 33. Sliding bracket; 34. Connecting block; 35. Guide rail; 36. Motor B; 37. Support arm; 38. Support rod; 39. Cylinder; 310. Cantilever; 4. Ultrasonic probe. Detailed Implementation

[0017] See Figure 1-5 This embodiment is an automatic flaw detection device for couplings, including a water tank 1. A rotating mechanism 2 is installed inside the water tank 1. The rotating mechanism 2 is used to support and drive the coupling to rotate. A flaw detector drive mechanism 3 is provided on the outside of the water tank 1. The flaw detector drive mechanism 3 includes a support beam 31. A track arranged along the X-axis is provided on the support beam 31. A sliding bracket 33 is installed on the track. A linear drive mechanism 32 is installed on one side of the track. The linear drive mechanism 32 is connected to the sliding bracket 33. A support arm 37 extending along the Y-axis and towards the water tank 1 is installed on the sliding bracket 33. A support rod 38 extending downward along the Z-axis into the water tank 1 is installed on the support arm 37 corresponding to the rotating mechanism 2. A cantilever 310 is installed on the support rod 38. An ultrasonic probe 4 is installed at the outer end of the cantilever 310.

[0018] Furthermore, the rotating mechanism 2 includes two sets of support rollers 24, one end of the roller shaft of each set of support rollers 24 extends outward into the water tank 1, and a motor A22 is connected to the outer end of the roller shaft.

[0019] Furthermore, each of the two sets of support rollers 24 is equipped with a transmission gear 23 at the outer end of its roller shaft, and the output end of the motor A22 is equipped with a drive gear 21, which meshes with both transmission gears 23 simultaneously.

[0020] Furthermore, the sliding bracket 33 is equipped with a guide rail 35 arranged along the Z-axis direction, the support arm 37 is slidably connected to the guide rail 35, and the sliding bracket 33 is equipped with a lifting drive mechanism, which is connected to the support arm 37 to drive the support arm 37 to move up and down along the guide rail 35.

[0021] Furthermore, the lifting drive mechanism includes a motor B36, the output end of which is equipped with a lead screw arranged along the Z-axis. A connecting block 34 is mounted on the side of the support arm 37, and the connecting block 34 is threadedly connected to the lead screw. In this embodiment, the motor B36 drives the support arm 37 to move up and down along the guide rail 35, thereby adjusting the height of the support arm 37 according to the diameter of the coupling to be detected.

[0022] Furthermore, a cylinder 39 is mounted on the support rod 38. The cylinder body of the cylinder 39 is rotatably connected to the support rod 38. The piston rod end of the cylinder 39 is hinged to the middle of the cantilever 310. One end of the cantilever 310 is rotatably connected to the support rod 38. The cylinder 39 is used to adjust the angle of the cantilever 310, thereby adjusting the height position of the ultrasonic probe 4.

[0023] The linear drive mechanism 32 described in this embodiment includes a motor, and the output end of the motor is equipped with a lead screw, which is threadedly connected to the sliding bracket 33.

[0024] The working principle of this utility model is as follows: A certain amount of water is contained in the water tank 1. When the coupling is placed horizontally on two sets of support rollers 24, the water level is above the bottom of the coupling by a certain height. Then, the rotating mechanism 2 is started, and the motor A22 drives the drive gear 21. The drive gear 21 drives the two transmission gears 23 to rotate synchronously. The two transmission gears 23 drive the two roller shafts to rotate synchronously, thereby driving the coupling to rotate around its own axis. Then, the flaw detector drive mechanism 3 is started, and the cylinder 39 pushes the cantilever 310 to adjust the ultrasonic probe 4 at the end of the cantilever 310 to a suitable height. Finally, the linear drive mechanism 32 moves at a certain speed to drive the sliding bracket 33 to move along the track towards the coupling. During the movement, the cantilever 310 and the ultrasonic probe 4 extend into the coupling. As the sliding bracket 33 moves, the ultrasonic probe 4 moves from one end of the coupling to the other end. At the same time, the coupling rotates, thus realizing ultrasonic detection of the coupling from all directions.

[0025] After the test is completed, the linear drive mechanism 32 reverses its movement to reset the sliding bracket 33, the support arm 37 and the cantilever 310, and then the tested coupling can be removed.

[0026] In this invention, the ultrasonic probe 4 is connected to the host via a cable. During the ultrasonic detection process, the host records the detection data in real time. After the detection is completed, the staff can check whether there are cracks or defects in the tested coupling through the host.

Claims

1. An automatic inspection apparatus for couplings, characterized in that: The utility model provides a coupling ultrasonic flaw detection device, including water tank, water tank is equipped with rotating mechanism in, rotating mechanism is used for supporting and driving coupling rotation, water tank outside is equipped with flaw detector drive mechanism, flaw detector drive mechanism includes support beam, support beam is equipped with track along X axle arrangement, track is equipped with sliding support, track one side is equipped with linear drive mechanism, linear drive mechanism is connected with sliding support, sliding support is equipped with support arm along Y axle direction and to water tank extension, support arm is equipped with support rod along Z axle downward extension to water tank in corresponding rotating mechanism department, support rod is equipped with cantilever, cantilever's outer end is equipped with ultrasonic probe.

2. An automatic inspection apparatus for couplings according to claim 1, characterized in that: The rotating mechanism includes two groups of support rollers, the roller shafts of the two groups of support rollers are outwardly extended from the water tank at one end, and the outer ends of the roller shafts are connected with motor A.

3. An automatic inspection apparatus for couplings according to claim 2, characterized in that: The outer ends of the roller shafts of the two groups of support rollers are each provided with a transmission gear, and the output end of the motor A is provided with a driving gear which is engaged with the two transmission gears.

4. An automatic inspection apparatus for couplings according to claim 1, characterized in that: The sliding support is provided with a guide rail arranged along the Z-axis direction, and the support arm is slidably connected with the guide rail.

5. An apparatus for automatically inspecting a coupling as defined in claim 4 wherein: The lifting drive mechanism includes motor B, and the output end of the motor B is provided with a screw rod arranged along the Z-axis direction.

6. An automatic inspection apparatus for couplings according to claim 1, characterized in that: The support rod is provided with a gas cylinder, the cylinder body of the gas cylinder is rotatably connected with the support rod, the piston rod end of the gas cylinder is hingedly connected with the middle part of the cantilever, one end of the cantilever is rotatably connected with the support rod, and the gas cylinder is used for adjusting the angle of the cantilever and further adjusting the height position of the ultrasonic probe.

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