X-ray flaw detector for nondestructive testing

Abstract

The utility model discloses an X-ray flaw detector for nondestructive testing, which relates to the technical field of flaw detection and comprises a flaw detector body, a mounting plate is provided with a moving mechanism, the moving mechanism comprises symmetrical connecting blocks, adjusting mechanisms are arranged in the connecting blocks, each adjusting mechanism comprises a worm, the worm is longitudinally and rotatably connected in the corresponding connecting block, and the worm is connected with the mounting plate. A fixing rod is fixedly connected into the connecting block, a worm gear is rotationally connected to the fixing rod and meshed with the worm, a connecting rod is fixedly connected to the side, away from the worm, of the worm gear, and an arc plate is fixedly connected to the end, away from the worm gear, of the connecting rod. The device has the beneficial effects that the rocker is rotated to drive the worm to rotate, so that the worm is meshed with the worm gear and drives the worm gear to rotate around the fixed rod, the worm gear drives the connecting rod to move, the connecting rod drives the arc plate to rotate by a certain angle around the fixed rod, and the contact area between the arc surface, away from the fixed rod, of the arc plate and the pipeline is gradually increased; the device can be conveniently adjusted according to the pipeline diameter, and the stability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of flaw detection, in particular to an X-ray flaw detector for non-destructive detection. Background Art

[0002] The flaw detector is used to detect cracks or defects inside metal materials or components. Non-destructive testing is a testing method that checks the surface and internal quality of the inspected components without damaging the workpiece or the working condition of the raw materials.

[0003] After searching, the Chinese patent announcement number is CN220730080U, which discloses an X-ray flaw detector. This patent is to suspend the X-ray flaw detector body above the pipeline to be tested by holding two end rings, and change the distance between the two relative arc plates by adjusting the two second handle screws to ensure that the two arc plates can be supported on the pipeline. There are certain problems with this device: the arc plate is always fixedly connected to the first handle screw, and by rotating the second handle screw, only the distance between the two arc plates can be adjusted. It cannot ensure that the arc plate is completely close to the pipeline wall, which may result in a small contact area between the arc plate and the pipeline wall, making the device unstable. Utility Model Content

[0004] The purpose of the present invention is to provide an X-ray flaw detector for non-destructive testing in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An X-ray flaw detector for non-destructive testing includes a flaw detector body, which is a transverse column. Multiple connecting columns are fixedly connected on both sides of the flaw detector body. The multiple connecting columns are radially symmetrical along the flaw detector body. The connecting columns are fixedly connected to end rings on the side away from each other. The bottoms of the connecting columns on both sides are fixedly connected to symmetrical mounting plates. A moving mechanism is provided on the mounting plate. The moving mechanism includes symmetrical connecting blocks. The symmetrical connecting blocks are located below the mounting plates. An adjustment mechanism is provided in the connecting block. The moving mechanism is used to drive the symmetrical adjusting mechanism to move in the opposite direction. The adjustment mechanism includes a worm. The worm is longitudinally connected to the connecting block. A fixed rod is fixedly connected in the connecting block. The fixed rod is perpendicular to the axial direction of the worm. A worm wheel is rotatably connected to the fixed rod. The worm wheel is located below the worm. The worm wheel is an eccentric half-worm wheel. The worm wheel meshes with the worm. The side of the worm wheel away from the worm is fixedly connected to the connecting rod. The end of the connecting rod away from the worm wheel is fixedly connected to an arc plate.

[0007] Preferably, both sides of the symmetrical connecting blocks away from the flaw detector body are rotatably connected to rockers, and the rockers are fixedly connected to the worm gear.

[0008] Preferably, a fixing plate is fixedly connected to the top of the mounting plate, and the fixing plate is used to fix the mounting plate to the bottom of the end ring. A symmetrical sliding groove is opened on the side of the symmetrical mounting plate away from the flaw detector body.

[0009] Preferably, the fixing piece is convex, and the convex portion of the fixing piece contacts the bottom of the end ring.

[0010] Preferably, a bidirectional screw rod is rotatably connected in the sliding groove, a symmetrical sliding block is threadedly connected to the bidirectional screw rod, and the bottom of the sliding block is fixedly connected to the top of the connecting block.

[0011] Preferably, the front end of the symmetrical mounting plate is rotatably connected to a turntable, and the turntable is coaxially and fixedly connected to the bidirectional screw rod.

[0012] The beneficial effect is that rotating the rocker drives the worm to rotate, so that the worm engages the worm wheel and drives the worm wheel to rotate around the fixed rod, thereby driving the connecting rod to move through the worm wheel, so that the connecting rod drives the arc plate to rotate around the fixed rod by a certain angle, so that the contact area between the arc surface of the arc plate away from the fixed rod and the pipeline gradually increases, thereby pressing the arc plate against the pipeline wall, making it easy to adjust the device according to the pipeline diameter and more stable.

[0013] Additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional diagram of an X-ray flaw detector for non-destructive testing described in the utility model;

[0016] Figure 2 This is a right side view of an X-ray flaw detector for non-destructive testing according to the present invention;

[0017] Figure 3 This is an enlarged view of point A of an X-ray flaw detector for non-destructive testing described in the present utility model;

[0018] Figure 4 It is a top view of an X-ray flaw detector for non-destructive testing described in the utility model.

[0019] The description of the accompanying numbers is as follows: 101, flaw detector body; 102, connecting column; 103, end ring; 201, mounting plate; 202, fixing plate; 203, sliding groove; 301, bidirectional screw; 302, sliding block; 303, connecting block; 401, worm; 402, fixing rod; 403, worm gear; 404, connecting rod; 405, arc plate; 5, turntable; 6, rocker. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figures 1-4As shown, an X-ray flaw detector for non-destructive testing includes a flaw detector body 101, which is a transverse column. A plurality of connecting columns 102 are fixedly connected on both sides of the flaw detector body 101. The plurality of connecting columns 102 are radially symmetrical along the flaw detector body 101. The connecting columns 102 are fixedly connected to the end ring 103 on the side away from each other. The bottoms of the connecting columns 102 on both sides are fixedly connected to symmetrical mounting plates 201. A moving mechanism is provided on the mounting plate 201. The moving mechanism includes symmetrical connecting blocks 303. The symmetrical connecting blocks 303 are located below the mounting plate 201. An adjusting mechanism is provided in the connecting block 303. The moving mechanism is used to drive the symmetrical adjusting mechanism to move in the opposite direction. The adjusting mechanism includes a worm 401. The worm 401 is longitudinally rotatably connected in the connecting block 303. A fixed rod 402 is fixedly connected in the connecting block 303. The fixed rod 402 is perpendicular to the axial direction of the worm 401. A worm wheel 403 is rotatably connected to the fixed rod 402. The wheel 403 is located below the worm 401. The worm wheel 403 is an eccentric half-worm wheel. The worm wheel 403 is meshed with the worm 401. The side of the worm wheel 403 away from the worm 401 is fixedly connected to the connecting rod 404. The end of the connecting rod 404 away from the worm wheel 403 is fixedly connected to the arc plate 405. Then, the device is lifted onto the pipeline through the end ring 103 so that the arc plate 405 contacts the pipeline. At this time, the arc surface of the arc plate 405 does not completely contact the pipeline wall and needs to be adjusted. Turn the rocker 6 to drive The worm 401 is rotated so that the worm 401 engages with the worm wheel 403 and drives the worm wheel 403 to rotate around the fixed rod 402, thereby driving the connecting rod 404 to move through the worm wheel 403, so that the connecting rod 404 drives the arc plate 405 to rotate around the fixed rod 402 by a certain angle, so that the contact area between the arc surface of the arc plate 405 away from the fixed rod 402 and the pipeline gradually increases, thereby pressing the arc plate 405 against the pipeline wall, making it easier to adjust the device according to the pipeline diameter and more stable.

[0024] Both sides of the symmetrical connecting blocks 303 away from the flaw detector body 101 are rotatably connected to the rocker 6, and the rocker 6 is fixedly connected to the worm 401.

[0025] A fixing piece 202 is fixedly connected to the top of the mounting plate 201. The fixing piece 202 is used to fix the mounting plate 201 to the bottom of the end ring 103. A symmetrical sliding groove 203 is opened on the side of the symmetrical mounting plate 201 away from the flaw detector body 101.

[0026] The fixing plate 202 is convex, and the convex part of the fixing plate 202 contacts the bottom of the end ring 103. The inner wall of the convex part of the fixing plate 202 contacts the bottom of the end ring 103, and then the fixing plate 202 is fixed to the mounting plate 201 by bolts, thereby fixing the mounting plate 201 to the bottom of the end ring 103.

[0027] A bidirectional screw rod 301 is rotatably connected in the sliding groove 203, and a symmetrical sliding block 302 is threadedly connected to the bidirectional screw rod 301. The bottom of the sliding block 302 is fixedly connected to the top of the connecting block 303. The distance between the symmetrical connecting blocks 303 is adjusted according to the diameter of the pipe. The turntable 5 is rotated to drive the bidirectional screw rod 301 to rotate, so that the symmetrical sliding blocks 302 slide with the sliding groove 203 and move in opposite directions on the bidirectional screw rod 301, driving the symmetrical connecting blocks 303 to change the distance between them.

[0028] The front end of the symmetrical mounting plate 201 is rotatably connected to a turntable 5 , and the turntable 5 is coaxially and fixedly connected to the bidirectional screw rod 301 .

[0029] Working principle: When in use, the inner wall of the raised part of the fixing plate 202 contacts the bottom of the end ring 103, and then the fixing plate 202 is fixed to the mounting plate 201 by bolts, so that the mounting plate 201 is fixed to the bottom of the end ring 103, and then the distance between the symmetrical connecting blocks 303 is adjusted according to the diameter of the pipe, and the turntable 5 is rotated to drive the bidirectional screw rod 301 to rotate, so that the symmetrical sliding blocks 302 slide with the sliding groove 203 and move in opposite directions on the bidirectional screw rod 301, driving the symmetrical connecting blocks 303 to change the distance with each other, and then the device is lifted onto the pipe through the end ring 103, so that the arc plate 405 contacts the pipe. At this time, the arc plate 4 The arc surface of 05 does not completely contact the pipe wall and needs to be adjusted. The rocker 6 is turned to drive the worm 401 to rotate, so that the worm 401 engages the worm wheel 403 and drives the worm wheel 403 to rotate around the fixed rod 402, thereby driving the connecting rod 404 to move through the worm wheel 403, so that the connecting rod 404 drives the arc plate 405 to rotate around the fixed rod 402 by a certain angle, so that the contact area between the arc surface of the arc plate 405 away from the fixed rod 402 and the pipe gradually increases, thereby pressing the arc plate 405 against the pipe wall, making it easier to adjust the device according to the pipe diameter and more stable. Subsequently, the internal defects of the pipe are detected by the flaw detector body 101.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An X-ray flaw detector for non-destructive testing, comprising a flaw detector body (101), wherein the flaw detector body (101) is in a transverse columnar shape, and a plurality of connecting columns (102) are fixedly connected to both sides of the flaw detector body (101), characterized in that: The plurality of connecting columns (102) are radially symmetrical along the flaw detector body (101), and the connecting columns (102) are fixedly connected to an end ring (103) on one side away from each other. The bottoms of the connecting columns (102) on both sides are fixedly connected to symmetrical mounting plates (201), and a moving mechanism is provided on the mounting plate (201), and the moving mechanism includes symmetrical connecting blocks (303), and the symmetrical connecting blocks (303) are located below the mounting plate (201). An adjusting mechanism is provided in the connecting block (303), and the moving mechanism is used to drive the symmetrical adjusting mechanism to move in the opposite direction, and the adjusting mechanism includes a worm (401), and the worm (401) is longitudinally The connecting block (303) is rotatably connected to the connecting block (303), a fixing rod (402) is fixedly connected to the connecting block (303), the fixing rod (402) is perpendicular to the axial direction of the worm (401), a worm wheel (403) is rotatably connected to the fixing rod (402), the worm wheel (403) is located below the worm (401), the worm wheel (403) is an eccentric half-worm wheel, the worm wheel (403) is meshed with the worm (401), a connecting rod (404) is fixedly connected to the side of the worm wheel (403) away from the worm (401), and an arc plate (405) is fixedly connected to the end of the connecting rod (404) away from the worm wheel (403); The worm (401) drives the worm wheel (403) to rotate around the fixed rod (402), so that the worm wheel (403) drives the connecting rod (404) to rotate, driving the arc plate (405) to increase the contact area with the pipeline.

2. The X-ray flaw detector for non-destructive testing according to claim 1, characterized in that: Both sides of the symmetrical connecting block (303) away from the flaw detector body (101) are rotatably connected to rockers (6), and the rockers (6) are fixedly connected to the worm (401).

3. The X-ray flaw detector for non-destructive testing according to claim 1, characterized in that: A fixing plate (202) is fixedly connected to the top of the mounting plate (201), and the fixing plate (202) is used to fix the mounting plate (201) to the bottom of the end ring (103). A symmetrical sliding groove (203) is opened on the side of the symmetrical mounting plate (201) away from the flaw detector body (101).

4. The X-ray flaw detector for non-destructive testing according to claim 3, characterized in that: The fixing plate (202) is convex, and the convex portion of the fixing plate (202) contacts the bottom of the end ring (103).

5. The X-ray flaw detector for non-destructive testing according to claim 3, characterized in that: A bidirectional screw rod (301) is rotatably connected in the sliding groove (203), and a symmetrical sliding block (302) is threadedly connected to the bidirectional screw rod (301), and the bottom of the sliding block (302) is fixedly connected to the top of the connecting block (303).

6. The X-ray flaw detector for non-destructive testing according to claim 5, characterized in that: The front end of the symmetrical mounting plate (201) is rotatably connected to a turntable (5), and the turntable (5) is coaxially fixedly connected to the bidirectional screw rod (301).

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