Detection equipment for JCOE large-caliber straight welded pipe

Abstract

The utility model discloses detection equipment for a JCOE large-caliber straight welded pipe, which relates to the technical field of welded pipe detection and comprises a base, the upper end of the base is fixedly connected with two U-shaped frames, the top ends of the inner sides of the U-shaped frames are fixedly provided with at least one electric telescopic rod, the output end of the electric telescopic rod on the left side is fixedly connected with a fixed frame, and the output end of the electric telescopic rod on the right side is fixedly connected with a movable frame. According to the utility model, the electromagnetic detection ring is used for detecting the surface defects of the welded pipe, and the ultrasonic detection probe is used for detecting the internal defects of the welded pipe, so that all-directional efficient detection of the surface defects and the internal defects of the welded pipe is realized; meanwhile, electromagnetic detection and ultrasonic detection are integrated in the same equipment, comprehensive control over the quality of the welded pipes is ensured, the position of the feeding and discharging assembly can be adjusted according to the welded pipes of different specifications, and the device can adapt to the large-diameter welded pipes of various sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to welded pipe detection technical field, concretely relates to a detection equipment for JCOE large diameter straight seam welded pipe. BACKGROUND

[0002] JCOE refers to a specific welded pipe production process, is often used for manufacturing large diameter steel pipe, and this process is particularly suitable for large diameter pipeline in the fields such as pipeline, oil and gas transmission, and because the quality of weld in the welding process is directly related to the safety and stability of pipeline, therefore, detecting weld quality becomes an important link in the welded pipe production link.

[0003] The detection of the surface and internal defects of the weld of the existing equipment depends on manual operation, errors are prone to be caused by human factors, and at the same time, it is difficult to detect fine surface defects or internal pores and cracks, and the adaptability of the traditional equipment to large diameter welded pipes is poor, and it is difficult to meet the detection needs of welded pipes of different sizes, therefore, a detection equipment for JCOE large diameter straight seam welded pipe is provided to solve the problems in the above. SUMMARY

[0004] To solve the above technical problems, a detection equipment for JCOE large diameter straight seam welded pipe is provided, which solves the problems that the detection of the surface and internal defects of the weld of the existing equipment depends on manual operation, errors are prone to be caused by human factors, and at the same time, it is difficult to detect fine surface defects or internal pores and cracks, and the adaptability of the traditional equipment to large diameter welded pipes is poor, and it is difficult to meet the detection needs of welded pipes of different sizes.

[0005] To achieve the above purposes, the technical scheme adopted by the utility model is as follows:

[0006] A detection equipment for JCOE large diameter straight seam welded pipe, comprising a base, the upper end of the base is fixedly connected with two U-shaped frames, at least one electric telescopic rod is fixedly installed at the inner side top end of the U-shaped frame, the output end of the electric telescopic rod on the left side is fixedly connected with a fixed frame, an electromagnetic detection ring is arranged on the inner side of the fixed frame, the output end of the electric telescopic rod on the right side is fixedly connected with a lifting plate, an ultrasonic detection probe is arranged on the lower end of the lifting plate, a plurality of uniformly distributed feeding and discharging assemblies are arranged on the left side of the U-shaped frame on the left side and the right side of the U-shaped frame on the right side of the base upper end.

[0007] Among them, the feeding and discharging assembly comprises a first conveying roller, a second conveying roller and two support frames, a driving shaft is rotatably connected between the two support frames, and the first conveying roller is fixedly connected to the outer surface of the driving shaft.

[0008] Preferably, the outer side of one side of the support frame is fixedly provided with a second servo motor for driving the rotation of the driving shaft.

[0009] Preferably, the front end of the support frame is provided with a sliding groove, and a screw rod is rotatably connected in the sliding groove.

[0010] Preferably, the upper end of the support frame is fixedly provided with a first servo motor for driving the rotation of the screw rod.

[0011] Preferably, the outer surface of the screw rod is threadedly connected with an adjusting block, and the adjusting block is slidably connected in the sliding groove.

[0012] Preferably, a rotating shaft is rotatably connected between the two adjusting blocks, and a second conveying roller is fixedly connected to the outer surface of the rotating shaft.

[0013] Preferably, the diameters of the two ends of the first conveying roller and the second conveying roller are greater than the diameter of the middle part, and the outer edges of the longitudinal sections of the first conveying roller and the second conveying roller are smooth circular arcs.

[0014] The utility model has the beneficial effects compared with the prior art:

[0015] The utility model discloses a detection equipment for JCOE large-diameter straight seam welded pipe, detects the surface defect of the welded pipe through the electromagnetic detection ring, detects the internal defect of the welded pipe through the ultrasonic detection probe, realizes all -round efficient detection of the surface and internal defect of the welded pipe, integrates the electromagnetic detection and ultrasonic detection in the same equipment at the same time, greatly improves the detection efficiency, and guarantees the comprehensive control to the welded pipe quality, and the feeding and discharging assembly can adjust the position according to the welded pipe of different specifications, can adapt to a variety of sizes of large-diameter welded pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the structural schematic diagram of the feeding and discharging assembly in the utility model.

[0018] The figure mark is:

[0019] 1, base plate, 2, U-shaped frame, 3, electric telescopic rod, 4, fixed frame, 5, lifting plate, 6, electromagnetic detection ring, 7, ultrasonic detection probe,

[0020] 8, feeding and discharging assembly, 801, support frame, 802, sliding groove, 803, screw rod, 804, first servo motor, 805, adjusting block, 806, driving shaft, 807, first conveying roller, 808, second servo motor, 809, rotating shaft, 8010, second conveying roller. DETAILED DESCRIPTION

[0021] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0022] With reference to Figure 1 And Figure 2 As shown in the figure, a detection equipment for JCOE large-diameter straight seam welded pipe, including base 1, the upper end of base 1 is fixedly connected with two U-shaped frames 2, the inner side top of U-shaped frame 2 is fixedly installed at least one electric telescopic rod 3, the output end of left electric telescopic rod 3 is fixedly connected with fixed frame 4, the inner side of fixed frame 4 is provided with electromagnetic detection ring 6, the output end of right electric telescopic rod 3 is fixedly connected with lifting plate 5, the lower end of lifting plate 5 is provided with ultrasonic detection probe 7, the upper end of base 1 is located at the left side of left U-shaped frame 2 and the right side of right U-shaped frame 2, and a plurality of uniformly distributed feeding and discharging assemblies 8 are arranged.

[0023] Among them, the feeding and discharging assembly 8 includes first conveying roller 807, second conveying roller 8010 and two support frames 801, the driving shaft 806 is rotatably connected between the two support frames 801, and the first conveying roller 807 is fixedly connected to the outer surface of the driving shaft 806.

[0024] Further, the outer side of one side support frame 801 is fixedly installed with a second servo motor 808 for driving the driving shaft 806 to rotate.

[0025] Further, the front end of support frame 801 is provided with a sliding groove 802, the inner side of sliding groove 802 is rotatably connected with a lead screw 803, the upper end of support frame 801 is fixedly installed with a first servo motor 804 for driving the lead screw 803 to rotate, the outer surface of lead screw 803 is threadedly connected with an adjusting block 805, the adjusting block 805 is slidably connected in the inner side of sliding groove 802, the outer surface of the second conveying roller 8010 is fixedly connected with the outer surface of the second conveying roller 8010.

[0026] Further, the electromagnetic detection ring 6 is used to detect whether there are defects such as cracks and pores on the surface of the welded pipe, and is electrically connected with an external power supply and an electromagnetic analysis device. The electromagnetic analysis device can measure the magnetic field strength of the electromagnetic detection ring 6. When the current passes through the electromagnetic detection ring 6, an alternating magnetic field is generated around the electromagnetic detection ring 6. When the welded pipe passes through the magnetic field during the detection process, if there are defects such as cracks and pores on the surface of the welded pipe, the magnetic field at the defect position will generate eddy current, which will affect the magnetic field distribution of the electromagnetic detection ring 6. At this time, the electromagnetic analysis device detects the change of the magnetic field and converts it into a corresponding electrical signal for analysis. By analyzing the amplitude, frequency and phase of the eddy current, the type and position of the defect can be determined, and then whether there are defects such as cracks, pores and delamination on the surface of the welded pipe can be diagnosed.

[0027] Further, the ultrasonic detection probe 7 can generate and receive ultrasonic waves, and is used to detect whether there are defects inside the welded pipe. The ultrasonic detection probe 7 is electrically connected with an external ultrasonic analysis device. The ultrasonic detection probe 7 uses the reflection principle of high-frequency sound waves to detect the internal defects of the welded pipe. During the detection process, the ultrasonic detection probe 7 emits high-frequency sound waves to the surface of the welded pipe. The sound waves propagate in different parts of the welded pipe and are reflected when encountering different media. If the sound waves encounter defects such as cracks or pores, the sound waves will be reflected. The intensity and propagation time of the reflected waves are related to the size, depth and shape of the defects. After the ultrasonic probe receives the reflected waves, the time delay and waveform of the reflected waves are recorded and corresponding reflected signals are generated to the external ultrasonic analysis device. The ultrasonic analysis device can determine the position and severity of the defects by calculating the propagation speed, reflection intensity and return time of the sound waves.

[0028] Further, the welded pipe is placed on the first conveying rollers 807 on the left side of the fixed frame 4, and then the first servo motor 804 is started to drive the lead screw 803 to rotate, so that the second conveying roller 8010 is pressed on the upper end of the welded pipe, and the welded pipe can be fixed. The first conveying roller 807 is driven to rotate by the second servo motor 808, so that the welded pipe is pushed to move in the direction of the electromagnetic detection ring 6. When the welded pipe passes through the area where the electromagnetic detection ring 6 and the ultrasonic detection probe 7 are located, the electromagnetic detection ring 6 and the ultrasonic detection probe 7 detect the defects of the welded pipe passing through this area. The welded pipe after detection gradually moves to the right side, enters between the first conveying roller 807 and the second conveying roller 8010 on the right side, and is conveyed to the next processing link by the first conveying roller 807 and the second conveying roller 8010 on the right side.

[0029] Further, the distance between the first conveying roller 807 and the second conveying roller 8010 can be adjusted by rotating the lead screw 803 driven by the first servo motor 804.

[0030] Further, the diameters of the two ends of the first conveying roller 807 and the second conveying roller 8010 are greater than the diameter of the middle part, and the outer edges of the longitudinal sections of the first conveying roller 807 and the second conveying roller 8010 are smooth circular arc curves, which can better fit the outer surface of the welded pipe, reduce the deviation and instability of the welded pipe during conveying, ensure that the welded pipe always maintains good contact with the first conveying roller 807 and the second conveying roller 8010 during conveying, avoids sliding or deviating from the track, and ensures smooth and stable conveying.

[0031] Working principle: when in use, the welded pipe to be detected is placed on the plurality of first conveying rollers 807 on the left side of the fixed frame 4, then the first servo motor 804 is started to drive the screw rod 803 to rotate, the rotation of the screw rod 803 drives the adjusting block 805 to move along the sliding groove 802, thereby pressing the second conveying roller 8010 on the upper end of the welded pipe to fix the welded pipe, then the vertical position of the electromagnetic detection ring 6 and the ultrasonic detection probe 7 is adjusted through the electric telescopic rod 3, so that the welded pipe is in the detection range of the electromagnetic detection ring 6 and the ultrasonic detection probe 7 when passing through the detection area, then the second servo motor 808 is started to drive the first conveying roller 807 to rotate and push the welded pipe to move to the right, when the welded pipe passes through the detection area where the electromagnetic detection ring 6 and the ultrasonic detection probe 7 are located, the electromagnetic detection ring 6 and the ultrasonic detection probe 7 will detect whether the welded pipe has surface defects and internal defects respectively, and the detected welded pipe will continue to move to the right, at this time, the welded pipe gradually enters between the first conveying roller 807 and the second conveying roller 8010 on the right side, if no defects are found in the welded pipe during detection, the welded pipe will be conveyed to the next processing link through the first conveying roller 807 and the second conveying roller 8010 on the right side, if defects are detected, the staff can stop the driving of the first conveying roller 807 and the second conveying roller 8010 by the second servo motor 808, and then take appropriate treatment measures according to the defect type.

[0032] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A detection apparatus for JCOE large diameter straight seam welded pipe, characterized by, Including the base (1), the upper end of the base (1) is fixedly connected with two U-shaped frames (2), the inner side top end of the U-shaped frame (2) is fixedly installed with at least one electric telescopic rod (3), the output end of the left electric telescopic rod (3) is fixedly connected with a fixed frame (4), the inner side of the fixed frame (4) is provided with an electromagnetic detection ring (6), the output end of the right electric telescopic rod (3) is fixedly connected with a lifting plate (5), the lower end of the lifting plate (5) is provided with an ultrasonic detection probe (7), the upper end of the base (1) is located on the left side of the left side U-shaped frame (2) and the right side of the right side U-shaped frame (2), and a plurality of uniformly distributed feeding and discharging assemblies (8) are arranged. Wherein, the feeding and discharging assembly (8) comprises a first conveying roller (807), a second conveying roller (8010) and two support frames (801), a drive shaft (806) is rotatably connected between the two support frames (801), and the first conveying roller (807) is fixedly connected to the outer surface of the drive shaft (806).

2. A detection apparatus for JCOE large diameter straight seam welded pipe according to claim 1, characterized in that: The outer side of one of the support frames (801) is fixedly installed with a second servo motor (808) for driving the drive shaft (806) to rotate.

3. A detection apparatus for JCOE large diameter straight seam welded pipe according to claim 1, characterized in that: The front end of the support frame (801) is provided with a sliding groove (802), and the inner side of the sliding groove (802) is rotatably connected with a lead screw (803).

4. A detection apparatus for JCOE large diameter straight seam welded pipe according to claim 1, characterized in that: The upper end of the support frame (801) is fixedly installed with a first servo motor (804) for driving the lead screw (803) to rotate.

5. A detection apparatus for JCOE large diameter straight seam welded pipe as claimed in claim 3, wherein: The outer surface of the lead screw (803) is threadedly connected with an adjusting block (805), and the adjusting block (805) is slidably connected to the inner side of the sliding groove (802).

6. A detection apparatus for JCOE large diameter straight seam welded pipe according to claim 5, characterized in that: The two adjusting blocks (805) are rotatably connected with a rotating shaft (809), and the second conveying roller (8010) is fixedly connected to the outer surface of the rotating shaft (809).

7. A detection apparatus for JCOE large diameter straight seam welded pipe according to claim 1, characterized in that: The diameters of the two ends of the first conveying roller (807) and the second conveying roller (8010) are greater than the diameter of the middle, and the outer edges of the longitudinal sections of the first conveying roller (807) and the second conveying roller (8010) are smooth circular curves.

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