Pipeline welding seam nondestructive testing device

Abstract

The utility model discloses a pipeline welding seam nondestructive testing device, which belongs to the technical field of welding seam detection and comprises a base, the top end of the base is fixedly connected with a positioning support frame which is arranged at an included angle of 90 degrees, a round pipe to be tested is placed on the inner side of the positioning support frame, and the top end of the base is fixedly connected with combined rings which are oppositely arranged. A detection assembly is rotationally arranged between the combined rings, and a driving assembly used for driving the combined rings to rotate is arranged at the top end of the base. Through the arrangement of the driving assembly and the detection assembly, the driving motor is matched with the driving gear to drive the driven gear to rotate, so that the detection probe rotates around the welding seam, the welding seam detection function is realized, a detector does not need to hold the detection probe to move, the working pressure of the detector is reduced, and the detection efficiency is improved; by arranging the positioning supporting frame, the pipeline positioning function is automatically achieved, and a pipeline welding seam is aligned to the detection probe.

Description

Technical Field

[0001] The utility model relates to the technical field of weld detection, in particular to a non-destructive detection device for pipeline welds. Background Art

[0002] There are many ways of welding circular pipes, generally straight butt joint between circular pipes, and the weld track is circular. When detecting the weld, only need to fit the detection probe to the weld, and then rotate the circular pipe to realize the comprehensive detection function of the weld;

[0003] However, when the pipes are butt-jointed at 90 degrees, the weld track is an ellipse. At this time, due to the angle between the circular pipes, it is not convenient to rotate the circular pipes, so that the detector holds the detection probe and fits it to the weld to move. During the movement, due to the obstruction of the pipes, it is often necessary to change hands to continue driving the detection probe to move. During the handover process, it is easy for the detection probe to shift, resulting in missed detection of some welds. Moreover, when moving the probe by hand, the detector needs to concentrate highly, which significantly increases the working pressure of the detector. After a long time of detection operation, it is easy for the arm to ache. Therefore, a non-destructive detection device for pipeline welds is proposed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the circular pipes welded at 90 degrees in the prior art are not convenient to rotate, and the detector needs to hold the detection probe to detect the weld, which significantly increases the working pressure of the detector, and to propose a non-destructive detection device for pipeline welds.

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

[0006] A non-destructive detection device for pipeline welds, including a base, the top of the base is fixedly connected with a positioning support frame arranged at a 90-degree angle, a circular pipe to be detected is placed inside the positioning support frame, the top of the base is fixedly connected with a pair of opposite combination rings, a detection component is rotatably arranged between the combination rings, and a driving component for driving the combination rings to rotate is arranged at the top of the base.

[0007] Preferably, an annular groove is formed on the side wall of the combination ring, the detection component includes a driven gear ring arranged between the combination rings, a mounting block fixedly connected to the inner wall of the driven gear ring, and a detection probe arranged on the mounting block.

[0008] Preferably, an annular block fixedly connected to the side wall of the driven gear ring is slidably connected with the annular groove, a mounting pipe is fixedly connected to the bottom end of the mounting block, and the detection probe is slidably arranged inside the mounting pipe.

[0009] Preferably, a contact spring is fixedly connected between one end of the detection probe and the mounting block, and the detection probe is connected to an external detection device.

[0010] Preferably, the driving assembly includes a driving motor installed at the top end of the base, and an output end of the driving motor is fixedly connected to a driving gear meshing with the combined ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In this solution, by providing a driving assembly and a detection assembly, the driving motor cooperates with the driving gear to drive the driven gear to rotate, so that the detection probe rotates around the weld, realizing the detection function of the weld. There is no need for the detection personnel to hold the detection probe to move, reducing the working pressure of the detection personnel and improving the detection efficiency at the same time.

[0013] 2. In this solution, by providing a positioning support frame, when the pipeline is placed on it, the positioning function of the pipeline is automatically realized, making the pipeline weld align with the detection probe; by providing an installation pipe and a contact spring, the detection probe can always be in contact with the weld during the movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of a pipeline weld non-destructive detection device proposed by the present utility model Figure 1 ;

[0015] Figure 2 is a schematic three-dimensional structure diagram of a pipeline weld non-destructive detection device proposed by the present utility model Figure 2 ;

[0016] Figure 3 is an assembly structure schematic diagram of the detection assembly in a pipeline weld non-destructive detection device proposed by the present utility model;

[0017] Figure 4 is a connection structure schematic diagram of the installation pipe and the detection probe in a pipeline weld non-destructive detection device proposed by the present utility model.

[0018] In the figure: 1, base; 2, driving motor; 3, driving gear; 4, combined ring; 5, detection probe; 6, driven gear ring; 7, positioning support frame; 8, mounting block; 9, installation pipe; 10, contact spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Referring to Figures 1-4 , a non-destructive testing device for pipeline welds, including a base 1. A positioning support frame 7 disposed at a 90-degree angle is fixedly connected to the top end of the base 1. A circular pipe to be tested is placed inside the positioning support frame 7. Since the positioning support frame 7 is disposed at a 90-degree angle, when the pipe is placed on it, the positioning function of the pipe can be automatically realized, so that the pipe weld is aligned with the detection probe 5.

[0021] Combined rings 4 disposed oppositely are fixedly connected to the top end of the base 1. A detection assembly is rotatably disposed between the combined rings 4. An annular groove is formed in the side wall of the combined ring 4. The detection assembly includes a driven gear ring 6 disposed between the combined rings 4, a mounting block 8 fixedly connected to the inner wall of the driven gear ring 6, and a detection probe 5 disposed on the mounting block 8. An annular block slidably connected to the annular groove is fixedly connected to the side wall of the driven gear ring 6. A mounting tube 9 is fixedly connected to the bottom end of the mounting block 8. The detection probe 5 is slidably disposed inside the mounting tube 9. A contact spring 10 is fixedly connected between one end of the detection probe 5 and the mounting block 8. The detection probe 5 is connected to an external detection device.

[0022] It should be noted that: when the driven gear ring 6 drives the detection probe 5 to move around the weld, under the action of the contact spring 10, the detection probe 5 always contacts the weld, ensuring the comprehensiveness of detection and avoiding missed detection. At the same time, there is no need for the detector to hold the detection probe 5 to move, significantly reducing the working pressure of the detector and improving the detection efficiency.

[0023] It is worth noting that: the detection probe 5 cooperates with the mounting tube 9 and the contact spring 10, enabling the detection probe 5 to have a telescopic space during movement, so that the movement trajectory of the detection probe 5 can fit the weld.

[0024] A driving assembly for driving the combined ring 4 to rotate is disposed at the top end of the base 1. The driving assembly includes a driving motor 2 mounted at the top end of the base 1. The output end of the driving motor 2 is fixedly connected to a driving gear 3 meshing with the combined ring 4.

[0025] It should be noted that: the driving motor 2 drives the driving gear 3 to rotate, thereby driving the driven gear ring 6 to rotate, and the driven gear ring 6 drives the detection probe 5 to perform a circular motion.

[0026] When the utility model is in use, a pipeline is passed through the detection component and placed on the positioning support frame 7. At this time, the weld seam is automatically aligned with the detection probe 5, and under the action of the abutting spring 10, the detection probe 5 contacts the weld seam;

[0027] Then, the driving motor 2 is started. The driving motor 2 drives the driving gear 3 to rotate. The driving gear 3 drives the driven tooth ring 6 to rotate. The driven gear drives the mounting block 8 to perform a circular motion. The mounting block 8 drives the detection probe 5 to perform a circular motion. The detection probe 5 cooperates with the mounting pipe 9 and the abutting spring 10, so that the detection probe 5 has a telescopic space during the movement, and the movement track of the detection probe 5 can fit the weld seam, realizing the comprehensive detection function of the weld seam, avoiding the phenomenon of missed detection. At the same time, there is no need for the detection personnel to hold the detection probe 5 to move, significantly reducing the working pressure of the detection personnel and improving the detection efficiency.

[0028] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the utility model.

Claims

1. A pipeline weld nondestructive testing device, comprising a base (1), characterized in that: The top end of the base (1) is fixedly connected to a positioning support frame (7) arranged at an angle of 90 degrees, a round tube to be tested is placed inside the positioning support frame (7), the top end of the base (1) is fixedly connected to relatively arranged combination rings (4), a detection component is rotatably arranged between the combination rings (4), and the top end of the base (1) is provided with a driving component for driving the combination rings (4) to rotate.

2. A pipeline weld nondestructive testing device according to claim 1, characterized in that: The side wall of the combined ring (4) is provided with an annular groove, and the detection assembly comprises a driven gear ring (6) arranged between the combined rings (4), a mounting block (8) fixedly connected to the inner wall of the driven gear ring (6), and a detection probe (5) arranged on the mounting block (8).

3. A pipeline weld nondestructive testing device according to claim 2, characterized in that: The side wall of the driven gear ring (6) is fixedly connected to an annular block slidably connected to the annular groove, the bottom end of the mounting block (8) is fixedly connected to a mounting tube (9), and the detection probe (5) is slidably arranged inside the mounting tube (9).

4. A pipeline weld nondestructive testing device according to claim 3, characterized in that: A resisting spring (10) is fixedly connected between one end of the detection probe (5) and the mounting block (8), and the detection probe (5) is connected to an external detection device.

5. The pipeline weld nondestructive testing device according to claim 1, characterized in that: The driving assembly comprises a driving motor (2) mounted on the top of a base (1), and an output end of the driving motor (2) is fixedly connected to a driving gear (3) meshing with a combination ring (4).

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