Welding seam detection device for connecting pipe of pressure vessel

Abstract

The utility model relates to the technical field of pressure vessel connecting pipe welding seam detection, and discloses a pressure vessel connecting pipe welding seam detection device which comprises a bottom plate, and a connecting pipe body is movably arranged above the bottom plate. The clamping and fixing assembly comprises a clamping and fixing seat, a positive and negative screw rod, a handle threaded rod and a clamping block, the detection assembly is movably arranged on the bottom plate and comprises a movable seat, a radiation source tank, a gear, a rack, a worm gear ring and a worm, the movable seat is arranged on the bottom plate in a sliding mode, the radiation source tank is fixedly arranged on the inner curved surface of the worm gear ring, and the gear is arranged on the worm gear ring. The gear is fixedly arranged at the bottom of the worm, the worm gear ring and the worm are rotationally arranged in the movable seat, and the rack is fixedly mounted on the bottom plate; the clamping assembly and the detection assembly are arranged, the clamping assembly fixes the connecting pipe body and assists the detection assembly in detection, the worm and the worm gear ring are used for driving the radiation source block to conduct surrounding detection, and the detection range is widened to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure vessel pipe joint weld detection, in particular to a pressure vessel pipe joint weld detection device. Background Art

[0002] The pressure vessel pipe weld inspection device is mainly used to inspect the connecting welds between the pressure vessel pipe and the safety end, as well as the connecting welds between the safety end and the main pipeline; it can effectively detect defects such as pores, cold welds, lack of fusion or incomplete penetration in the welds, thereby preventing the occurrence of safety accidents.

[0003] The prior art discloses a radiographic inspection device for safety welds of a pressure vessel pipe (CN217786952U), comprising: a pipe body, and also comprising: two support plates, on which adjustment components are symmetrically arranged; the adjustment component comprises baffles symmetrically arranged on the support plates, a first rotating shaft is rotatably connected between the two baffles, and a limiting plate is fixedly connected to the first rotating shaft; a first screw hole, and a plurality of first screw holes are equidistantly arranged on the limiting plate; the utility model can inspect inspection pieces of different sizes, and at the same time can adjust the distance between the radiation and the inspection piece, and can perform large-area inspection on the inspection piece, and can be inspected without disassembling the equipment multiple times, thereby effectively improving its work efficiency.

[0004] After searching, it was found that the existing technology was unable to perform circumferential detection and detection of other positions on the pipe weld when in use. This resulted in limitations in the detection scope of the existing technology, and the weld could not be detected more accurately, and blind spots were easily missed in the detection.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problems of limited detection range and blind spots, the basic concept of the technical solution adopted by the utility model is:

[0007] A pressure vessel pipe weld detection device, comprising:

[0008] A bottom plate, a pipe body is movably arranged on the top of the bottom plate;

[0009] A clamping assembly, the clamping assembly comprising a clamping seat, a positive and negative screw rod, a handle threaded rod and a clamping block, the positive and negative screw rod being rotatably arranged in the bottom plate, the clamping seat being movably arranged between the bottom plate and the positive and negative screw rod, the handle threaded rod being rotatably arranged on the top curved surface of the clamping block, and the clamping block being slidably arranged in the clamping seat;

[0010] A detection component, which is movably arranged on a base plate, and includes a moving seat, a radiation source tank, a gear, a rack, a worm gear ring and a worm. The moving seat is slidably arranged on the base plate, the radiation source tank is fixedly arranged on the inner curved surface of the worm gear ring, the gear is fixedly arranged at the bottom of the worm, the worm gear ring and the worm are both rotatably arranged in the moving seat, and the rack is fixedly mounted on the base plate.

[0011] As a preferred embodiment of the utility model, a square opening is symmetrically opened in the inner center of the base plate, and the two square openings are rotatably connected to the same forward and reverse screw rods, and the forward and reverse screw rods move through the square opening on one side. The clamping seat, handle threaded rod and clamping block are each provided with two, and the two clamping seats are respectively slidably arranged in the two square openings.

[0012] As a preferred embodiment of the utility model, a clamping motor is fixedly installed on one side of the base plate, the output end of the clamping motor is connected to one end of the forward and reverse screw rods, and the two clamping seats are respectively threadedly engaged with the two ends of the forward and reverse screw rods.

[0013] As a preferred embodiment of the utility model, a circular groove is opened inside the clamping seat, the handle threaded rod is threadedly engaged with the top curved surface of the clamping seat, the clamping block is an arc-shaped plate, and the clamping block slides up and down in the circular groove.

[0014] As a preferred embodiment of the utility model, a slide plate is slidably provided on the top surface of the base plate, a telescopic cylinder is fixedly installed on the top surface of the slide plate, the top output end of the telescopic cylinder is connected to the bottom surface of the moving seat, the moving seat is shaped like a D-shaped block, and two telescopic rods are symmetrically fixed on one side of the base plate, and the top surfaces of the two telescopic rods are fixedly connected to the same rack, and the rack is located on the plane side of the moving seat.

[0015] As a preferred embodiment of the utility model, a movable cavity is opened inside the movable seat, and the movable cavity is composed of a square through cavity and a circular ring cavity. A ring edge is fixedly connected to the inner wall surfaces on both sides of the circular ring cavity, and a worm gear ring is rotatably connected between the two ring edges. A slider is fixedly connected on both sides of the worm gear ring, and the slider rotates and slides between the ring edge and the circular ring cavity. A worm is rotatably connected in the movable cavity, and the worm gear ring is meshed with the worm for transmission.

[0016] As a preferred embodiment of the utility model, a rotating motor is fixedly mounted on the top surface of the moving seat, the output end of the rotating motor is connected to the top end of the worm, the bottom surface of the moving seat is rotatably connected to a gear, and the gear transmission meshes with the rack.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. By setting up a clamping component and a detection component, the clamping component fixes the pipe body, assists the detection component in detection, and uses the worm and worm gear ring to drive the ray source block to perform surrounding detection, thereby maximizing the detection range.

[0019] 2. By adjusting the height of the rack and making the gear mesh with the rack, the moving seat drives the X-ray source tank to move horizontally for detection. At the same time, the worm and the worm gear ring drive the X-ray source block to perform surrounding detection, so that there is no blind spot in the detection, and the accuracy of weld detection is maximized.

[0020] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the clamping assembly of the utility model;

[0024] Figure 3 It is an overall schematic diagram of the detection component of the utility model;

[0025] Figure 4 It is a partial schematic diagram of the detection component of the utility model;

[0026] Figure 5 It is a cross-sectional schematic diagram of the mobile seat of the utility model.

[0027] In the figure: 10, bottom plate; 11, clamping motor; 12, pipe body; 13, clamping seat; 14, moving seat; 15, forward and reverse screws; 16, handle threaded rod; 17, clamping block; 18, rotating motor; 19, ray source tank; 20, telescopic cylinder; 21, slide plate; 22, gear; 23, rack; 24, telescopic rod; 25, worm ring; 26, slider; 27, worm; 28, movable cavity; 29, ring edge. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0029] A pressure vessel pipe weld detection device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it includes a base plate 10, and a pipe body 12 is movably arranged on the top of the base plate 10; a clamping assembly, which includes a clamping seat 13, a positive and negative screw rod 15, a handle threaded rod 16 and a clamping block 17. The positive and negative screw rod 15 is rotatably arranged in the base plate 10, the clamping seat 13 is movably arranged between the base plate 10 and the positive and negative screw rod 15, the handle threaded rod 16 is rotatably arranged on the top curved surface of the clamping block 17, and the clamping block 17 is slidably arranged in the clamping seat 13; as shown Figure 1 and Figure 2 As shown, the inner center of the bottom plate 10 is symmetrically provided with square openings, and the same positive and negative screw rods 15 are rotatably connected in the two square openings, and the positive and negative screw rods 15 are movable through the square opening on one side, and the clamping seats 13, the handle threaded rods 16 and the clamping blocks 17 are each provided with two, and the two clamping seats 13 are respectively slidably arranged in the two square openings; Figure 2 As shown, a clamping motor 11 is fixedly mounted on one side of the base plate 10, and the output end of the clamping motor 11 is connected to one end of the positive and negative screw rods 15, and two clamping seats 13 are respectively threadedly fitted on the two ends of the positive and negative screw rods 15; Figure 2 As shown, a circular groove is provided inside the clamping seat 13, the handle threaded rod 16 is threadedly fitted on the top curved surface of the clamping seat 13, and the clamping block 17 is an arc-shaped plate, which slides up and down in the circular groove.

[0030] Specifically, the device is provided with a clamping component and a detection component. When in use, the clamping component fixes the connecting pipe body 12, and the clamping motor 11 is used to drive the rotation of the forward and reverse screw rods 15, so that the clamping seats 13 on both sides are close to the connecting pipe body 12 at the same time, and the connecting pipe body 12 is clamped in the circular grooves on both sides. At this time, the handle threaded rod 16 in the clamping seats 13 on both sides is rotated. A threaded hole is provided on the top of the clamping seat 13. The handle threaded rod 16 is threadedly engaged with the threaded hole and pushes the clamping block 17 to clamp the top curved surface of the connecting pipe body 12, thereby fixing the connecting pipe body 12 and assisting the detection component in detection.

[0031] The detection assembly is movably arranged on the bottom plate 10, and the detection assembly includes a moving seat 14, a radiation source tank 19, a gear 22, a rack 23, a worm gear ring 25 and a worm 27. The moving seat 14 is slidably arranged on the bottom plate 10, the radiation source tank 19 is fixedly arranged on the inner curved surface of the worm gear ring 25, the gear 22 is fixedly arranged at the bottom of the worm 27, the worm gear ring 25 and the worm 27 are both rotatably arranged in the moving seat 14, and the rack 23 is fixedly installed on the bottom plate 10; Figure 1 and Figure 3As shown, a slide plate 21 is slidably provided on the top surface of the bottom plate 10, a telescopic cylinder 20 is fixedly installed on the top surface of the slide plate 21, and the top output end of the telescopic cylinder 20 is connected to the bottom surface of the moving seat 14. The moving seat 14 is shaped like a D-shaped block. Two telescopic rods 24 are symmetrically fixed on one side of the bottom plate 10. The top surfaces of the two telescopic rods 24 are fixedly connected to the same rack 23, and the rack 23 is located on the plane side of the moving seat 14; Figure 4 and Figure 5 As shown, a movable cavity 28 is provided inside the movable seat 14, and the movable cavity 28 is composed of a square through cavity and a circular annular cavity. A ring edge 29 is fixedly connected to the inner wall surfaces on both sides of the circular annular cavity, and a worm ring 25 is rotatably connected between the two ring edges 29. A slider 26 is fixedly connected to both sides of the worm ring 25, and the slider 26 rotates and slides between the ring edge 29 and the circular annular cavity. A worm 27 is rotatably connected in the movable cavity 28, and the worm ring 25 and the worm 27 are meshed for transmission; as shown in FIG. Figure 3 and Figure 4 As shown, a rotating motor 18 is fixedly mounted on the top surface of the moving seat 14 , and the output end of the rotating motor 18 is connected to the top end of the worm 27 . The bottom surface of the moving seat 14 is rotatably connected to the gear 22 , and the gear 22 drives the meshing rack 23 .

[0032] Specifically, the device is provided with a detection component. When in use, the telescopic cylinder 20 is driven to push the movable seat 14 up and down to adapt to the clamping height of the connecting pipe body 12, and the rotating motor 18 is used to drive the worm 27 to rotate in the square through cavity. The meshing of the worm 27 and the worm gear ring 25 drives the radiation source tank 19 to surround the connecting pipe body 12 for detection, thereby maximizing the detection range; by adjusting the telescopic rod 24 and the height of the rack 23, the gear 22 can contact the rack 23 and mesh with the rack 23, so that the movable seat 14 drives the radiation source tank 19 to perform horizontal movement detection, and at the same time cooperates with the worm gear ring 25 to drive the surrounding detection of the radiation source tank 19, so that there is no blind spot in the detection, thereby maximizing the accuracy of weld detection.

[0033] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A pressure vessel pipe weld detection device, characterized in that: include A bottom plate (10), wherein a pipe connecting body (12) is movably arranged above the bottom plate (10); A clamping assembly, the clamping assembly comprising a clamping seat (13), a forward and reverse screw rod (15), a handle threaded rod (16) and a clamping block (17), the forward and reverse screw rod (15) being rotatably disposed in the base plate (10), the clamping seat (13) being movably disposed between the base plate (10) and the forward and reverse screw rod (15), the handle threaded rod (16) being rotatably disposed on a top curved surface of the clamping block (17), and the clamping block (17) being slidably disposed in the clamping seat (13); A detection assembly, wherein the detection assembly is movably arranged on a base plate (10), and comprises a movable seat (14), a radiation source tank (19), a gear (22), a rack (23), a worm wheel ring (25), and a worm (27); the movable seat (14) is slidably arranged on the base plate (10), the radiation source tank (19) is fixedly arranged on the inner curved surface of the worm wheel ring (25), the gear (22) is fixedly arranged at the bottom of the worm (27), the worm wheel ring (25) and the worm (27) are both rotatably arranged in the movable seat (14), and the rack (23) is fixedly mounted on the base plate (10).

2. A pressure vessel pipe weld detection device according to claim 1, characterized in that: The bottom plate (10) is provided with a square opening symmetrically at the center thereof, and the two square openings are rotatably connected to the same forward and reverse screw rod (15), and the forward and reverse screw rod (15) movably passes through the square opening on one side. The clamping seat (13), the handle threaded rod (16) and the clamping block (17) are each provided with two, and the two clamping seats (13) are respectively slidably arranged in the two square openings.

3. A pressure vessel pipe weld detection device according to claim 2, characterized in that: A clamping motor (11) is fixedly mounted on one side of the base plate (10), an output end of the clamping motor (11) is connected to one end of a forward and reverse screw rod (15), and the two clamping seats (13) are respectively threadedly engaged with the two ends of the forward and reverse screw rod (15).

4. A pressure vessel pipe weld detection device according to claim 2, characterized in that: A circular groove is provided inside the clamping seat (13); the handle threaded rod (16) is threadedly engaged with the top curved surface of the clamping seat (13); the clamping block (17) is an arc-shaped plate; and the clamping block (17) slides up and down in the circular groove.

5. A pressure vessel pipe weld inspection device according to claim 1, characterized in that: A slide plate (21) is slidably arranged on the top surface of the bottom plate (10), a telescopic cylinder (20) is fixedly mounted on the top surface of the slide plate (21), a top output end of the telescopic cylinder (20) is connected to the bottom surface of a moving seat (14), the moving seat (14) is shaped like a D-shaped block, two telescopic rods (24) are symmetrically fixed on one side of the bottom plate (10), the top surfaces of the two telescopic rods (24) are fixedly connected to the same rack (23), and the rack (23) is located on the plane side of the moving seat (14).

6. A pressure vessel pipe weld inspection device according to claim 1, characterized in that: The movable seat (14) has an active cavity (28) formed inside. The active cavity (28) consists of a square through cavity and a circular annular cavity. An annular edge (29) is fixedly connected to the inner wall surfaces on both sides of the circular annular cavity. A worm gear ring (25) is rotatably connected between the two annular edges (29). A slider (26) is fixedly connected to the two sides of the worm gear ring (25). The slider (26) rotates and slides between the annular edge (29) and the circular annular cavity. A worm (27) is rotatably connected inside the active cavity (28). The worm gear ring (25) and the worm gear (27) are meshed for transmission.

7. A pressure vessel pipe weld inspection device according to claim 1, characterized in that: A rotating motor (18) is fixedly mounted on the top surface of the movable seat (14), the output end of the rotating motor (18) is connected to the top end of the worm (27), the bottom surface of the movable seat (14) is rotatably connected to a gear (22), and the gear (22) drives and meshes with a rack (23).

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