Fixing device for pressure vessel welding seam x-ray transillumination detection

Abstract

A fixing device for pressure vessel welding seam X-ray transillumination detection comprises a sliding rail arranged on the ground in an X-ray flaw detection room, a mounting plate connected to the sliding rail in a sliding mode, supporting frames symmetrically arranged at the top of the mounting plate, a fixing rod arranged between the supporting frames, a fixing ring arranged on the fixing rod, and a fixing groove formed in the circumferential face of the fixing ring. Fixing belts used for fixing the pressure vessel are arranged in the fixing grooves, positioning blocks are symmetrically arranged on the mounting plate, a rotating rod is arranged between the positioning blocks, a rotating ring is arranged on the rotating rod, rotating grooves are formed in the circumferential surface of the rotating ring, and a driving belt used for fixing the middle of the pressure vessel and preventing the pressure vessel from shaking is arranged in the rotating groove. The utility model has a simple and reasonable structure, and can effectively reduce the damage of the pressure vessel in the X-ray detection process.

Description

Technical Field

[0001] The utility model relates to the field of pressure vessels, in particular to a fixing device for X-ray transillumination detection of pressure vessel welds. Background Art

[0002] Pressure vessels are typically sealed devices used to contain gases and liquids. During the manufacturing process, pressure vessels require welding. After welding, they are transported to an X-ray inspection room for X-ray transillumination. Currently, pressure vessels are transported to the X-ray inspection room using a slide rail composed of multiple rollers. The inventors discovered that this method can cause scratches where the pressure vessel contacts the rail, resulting in cosmetic damage and potentially affecting subsequent sales. Utility Model Content

[0003] The utility model aims to provide a fixing device for X-ray transillumination detection of pressure vessel welds to fix and transport the pressure vessel and reduce damage to the appearance of the pressure vessel.

[0004] In order to solve the above technical problems, the specific solution adopted by the utility model is:

[0005] A fixing device for X-ray radiography inspection of pressure vessel welds comprises a slide rail arranged on the floor of an X-ray inspection room, a slidingly connected mounting plate being provided on the slide rail, support frames being symmetrically provided on the top of the mounting plate, fixing rods being provided between the support frames, fixing rings being provided on the fixing rods, fixing grooves being provided on the circumference of the fixing rings, fixing belts for fixing the pressure vessel being provided in the fixing grooves, positioning blocks being symmetrically provided on the mounting plate, rotating rods being provided between the positioning blocks, rotating rings being provided on the rotating rods, rotating grooves being provided on the circumference of the rotating rings, and driving belts for fixing the middle portion of the pressure vessel to prevent it from shaking being provided in the rotating grooves.

[0006] The rotating rods are located below the fixed rods and are parallel to each other.

[0007] The fixing ring is located on the fixing rod and is slidably connected.

[0008] Both ends of the rotating rod are provided with a rotating shaft, the rotating rod is rotatably connected to the positioning block via the rotating shaft, a motor for driving the rotating rod is provided on the mounting plate, and the output shaft of the motor is connected to the rotating shaft.

[0009] The rotating rod is a polygonal structure, and the rotating ring is located on the rotating rod and is slidably connected.

[0010] The surface of the driving belt that contacts the pressure vessel is provided with anti-slip grooves.

[0011] An adjustment block is provided on one end of the driving belt, and an adjustment slot is provided on the adjustment block. The other end of the driving belt passes through the adjustment slot. An adjustment hole is provided on the side of the adjustment block and is connected to the adjustment slot. An adjustment bolt for fixing the other end of the driving belt is installed in the adjustment hole.

[0012] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0013] A support frame is arranged on the mounting plate, and a fixing rod is arranged on the support frame, a fixing ring and a fixing belt are provided on the fixing rod, the pressure vessel is fixed by the fixing belt, and a driving belt that can be driven by a motor is arranged under the fixing rod to fix the pressure vessel, thereby preventing the pressure vessel from shaking during transportation, and fixing the pressure vessel by the fixing belt can greatly reduce the wear on the outside of the pressure vessel, and the rotation of the driving belt is controlled by the motor, and the detection position of the pressure vessel can also be adjusted during the X-ray detection process; the utility model has a simple and reasonable structure, and can effectively reduce the damage caused to the pressure vessel during the X-ray detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the regulating block of the present utility model;

[0016] Reference numerals: slide rail 1; mounting plate 2; slider 3; support frame 4; fixing rod 6; fixing ring 7; fixing belt 8; positioning block 9; rotating shaft 10; rotating rod 11; adjusting bolt 12; rotating ring 13; driving belt 14; anti-slip groove 15; adjusting block 16; motor 17. DETAILED DESCRIPTION

[0017] like Figures 1 and 2As shown, a fixing device for X-ray radiography inspection of pressure vessel welds includes a slide rail 1 set on the floor of an X-ray inspection room, a mounting plate 2 for sliding connection is provided on the slide rail 1, a slider 3 for use with the slide rail 1 is provided at the bottom of the mounting plate 2, support frames 4 are symmetrically provided on the top of the mounting plate 2, fixing rods 6 are provided between the support frames 4, fixing rings 7 are provided on the fixing rods 6, the fixing rings 7 are slidably connected to the fixing rods 6, fixing grooves are provided on the circumference of the fixing ring 7, and fixing belts 8 for fixing the pressure vessel are provided in the fixing grooves. The downward pressure of the pressure vessel itself can increase the friction between the fixing ring 7 and the fixing rod 6 to prevent the fixing ring 7 from sliding during the transportation of the pressure vessel. Positioning blocks 9 are symmetrically provided on the mounting plate 2, and a rotating rod 11 is provided between the positioning blocks 9. The rotating rods 11 are located below the fixed rod 6 and are parallel to each other. A rotating ring 13 is provided on the rotating rod 11, and a rotating groove is provided on the circumference of the rotating ring 13. A driving belt 14 is provided in the rotating groove for fixing the middle of the pressure vessel to prevent it from shaking. The pressure vessel is pulled downward by the driving belt 14, thereby preventing the pressure vessel from shaking during transportation. A rotating shaft 10 is provided at both ends of the rotating rod 11, and the rotating rod 11 is rotatably connected to the positioning block 9 via the rotating shaft 10. A motor 17 for driving the rotating rod 11 is provided on the mounting plate 2. The output shaft is connected to the rotating shaft 10, and the drive belt 14 can be rotated by the motor 17. The drive belt 14 is provided with an anti-slip groove 15 on the side in contact with the pressure vessel. During the rotation of the drive belt 14, the pressure vessel can be driven to rotate on the fixed belt 7, thereby facilitating the X-ray camera to perform multi-directional irradiation detection. The motor 17 is connected to the control system of the X-ray flaw detection room. The operator can control the motor 17 to rotate in the operating room of the X-ray flaw detection room. The rotating rod 11 has a polygonal structure. The polygonal structure of the rotating rod 11 can effectively drive the rotating ring 13 to rotate. The rotating ring 13 is located on the rotating rod 11 and is slidably connected.

[0018] like Figure 2 As shown, an adjusting block 16 is provided on one end of the driving belt 14, and an adjusting slot is provided on the adjusting block 16. The adjusting slot is parallel to one end of the driving belt 14, and the other end of the driving belt 14 passes through the adjusting slot. An adjusting hole is provided on the side of the adjusting block 16 and is connected to the adjusting slot. An adjusting bolt 12 for fixing the other end of the driving belt 14 is installed in the adjusting hole. The length of the driving belt 14 can be adjusted by adjusting the tightness of the adjusting bolt 12, thereby ensuring that the driving belt 14 can effectively pull the pressure vessel downward, thereby fixing it.

[0019] The method of using the utility model is briefly described as follows:

[0020] When in use, the pressure vessel is lifted by a crane and sent to the side of the mounting plate 2. The fixing belt 8 is sequentially sleeved on the pressure vessel, and then the crane and the pressure vessel are disassembled to complete the loading of the pressure vessel on the fixing belt 8. Next, the driving belt 14 is passed along the upper middle part of the pressure vessel, and the other end of the driving belt 14 is passed through the adjustment groove of the adjustment block 16. By pulling the other end of the driving belt 14, the driving belt 14 pulls the pressure vessel downward, thereby forming a fixing effect on the pressure vessel. Next, the weld of the pressure vessel is inspected by sending the mounting plate 2 along the slide rail 1 on the ground into the X-ray inspection room. During the inspection process, the operator drives the driving belt 14 by controlling the motor 17. The motor 17 drives the rotating rod 11 to rotate, and the rotating rod 11 drives the rotating ring 13 to rotate. The anti-slip groove 15 arranged on the inner side of the driving belt 14 can not only increase the friction between itself and the pressure vessel, but also increase the friction between itself and the rotating ring 13, so that the rotating ring 13 drives the driving belt 14 to rotate.

Claims

1. A fixture for X-ray transillumination inspection of pressure vessel welds, characterized by: The invention comprises a slide rail (1) arranged on the floor of an X-ray inspection room, a mounting plate (2) connected in a sliding manner is provided on the slide rail (1), support frames (4) are symmetrically provided on the top of the mounting plate (2), fixing rods (6) are provided between the support frames (4), fixing rods (6) are provided with fixing rings (7), the circumference of the fixing rings (7) are provided with fixing grooves, and fixing belts (8) for fixing the pressure vessel are provided in the fixing grooves, positioning blocks (9) are symmetrically provided on the mounting plate (2), rotating rods (11) are provided between the positioning blocks (9), rotating rings (13) are provided on the rotating rods (11), the circumference of the rotating rings (13) are provided with rotating grooves, and the rotating grooves are provided with a driving belt (14) for fixing the middle part of the pressure vessel to prevent it from shaking.

2. The fixture for X-ray transillumination inspection of pressure vessel welds according to claim 1, characterized in that: The rotating rods (11) are located below the fixed rods (6) and are parallel to each other.

3. The fixture for X-ray transillumination inspection of pressure vessel welds according to claim 1, characterized in that: The fixing ring (7) is located on the fixing rod (6) and is slidably connected thereto.

4. The fixture for X-ray transillumination inspection of pressure vessel welds according to claim 1, characterized in that: Both ends of the rotating rod (11) are provided with a rotating shaft (10), and the rotating rod (11) is rotatably connected to the positioning block (9) via the rotating shaft (10). A motor (17) for driving the rotating rod (11) is provided on the mounting plate (2), and an output shaft of the motor (17) is connected to the rotating shaft (10).

5. The fixture for X-ray transillumination inspection of pressure vessel welds according to claim 4, characterized in that: The rotating rod (11) is a polygonal structure, and the rotating ring (13) is located on the rotating rod (11) and is slidably connected thereto.

6. The fixture for X-ray transillumination inspection of pressure vessel welds according to claim 4, characterized in that: Anti-slip grooves (15) are provided on the surface of the driving belt (14) that contacts the pressure vessel.

7. The fixture for X-ray transillumination inspection of pressure vessel welds according to claim 4, characterized in that: An adjusting block (16) is provided on one end of the driving belt (14), and an adjusting slot is provided on the adjusting block (16). The other end of the driving belt (14) passes through the adjusting slot. An adjusting hole is provided on the side of the adjusting block (16) and is connected to the adjusting slot. An adjusting bolt (12) for fixing the other end of the driving belt (14) is installed in the adjusting hole.

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