Nondestructive detection equipment for stainless steel defects

Abstract

The invention discloses stainless steel defect nondestructive testing equipment which comprises an operation table, foot pads are fixedly connected to the bottom of the operation table, a first supporting table is fixedly connected to the top of the operation table, an annular detection device is fixedly connected to the surface of the first supporting table, and an annular cleaning mechanism is arranged at the top of the operation table and comprises a supporting frame. The bottom of the supporting frame is fixedly connected with the top of the operation table, the surface of the supporting frame is fixedly connected with an outer ring, the surface of the outer ring is fixedly connected with a fixing plate, an inner cavity of the fixing plate is rotationally connected with a rotating shaft, and the surface of the rotating shaft is fixedly connected with a third roller. The device has the beneficial effects that the surface of the steel pipe is cleaned in all directions through the annular cleaning mechanism, surface attachments are swept away, interference to the detection device is reduced, and therefore internal defects of the steel pipe can be detected more accurately.

Description

Technical Field

[0001] The invention relates to the field of steel material detection, in particular to a nondestructive detection device for stainless steel material defects. Background Art

[0002] With the development of the times, the society's demand for steel is increasing. Through the flaw detection of steel structures, potential safety hazards can be discovered and resolved in a timely manner, thereby protecting people's lives and property. Secondly, steel structure flaw detection can also improve the quality and reliability of the project and extend the service life of the project. In addition, steel structure flaw detection can also provide an important basis for the acceptance and evaluation of the project.

[0003] For example, a Chinese patent discloses a stainless steel strip surface defect detection device (CN219978159U), including a base, the four corners of the upper end of the base are formed with fixing holes, the upper end of the base is provided with a mounting frame, a switch is provided on one side wall of the mounting frame, a mounting slot is provided on the mounting frame, two electric hydraulic rods are symmetrically arranged in the mounting slot, one end of the electric hydraulic rod is connected to a fixed shell, a synchronous motor is installed in the fixed shell, and a connecting roller is provided at the power output end of the synchronous motor. The beneficial effect is: the laser array sensor is used to synchronously detect defects on both sides of the stainless steel strip, and a laser marking machine is used to automatically mark and print on the defective parts, thereby improving the convenience of the device when used.

[0004] At present, the main non-destructive testing equipment for steel has a very low inspection efficiency for steel pipes. Most of them rely on clamping and pushing the pipes for inspection, and then sending them back to the material placement position. They still need to be removed manually and placed again, which results in very low work efficiency. Secondly, there is currently a lack of cleaning methods before steel pipe inspection. It is inevitable that some debris will be attached to the surface of the steel pipe during transportation and production. If it is not cleaned, it will affect the inspection of the inspection instrument, resulting in deviations in the inspection results.

[0005] Therefore, in view of the above technical problems, it is necessary to propose a nondestructive detection device for stainless steel defects. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art, it is inevitable that some debris will adhere to the surface of the steel pipe during transportation and production. If it is not cleaned, it will affect the detection of the detection instrument, thereby causing the problem of deviation in the detection result. The present invention proposes a non-destructive detection device for stainless steel defects.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] A stainless steel material defect nondestructive testing device comprises an operating table, a foot pad is fixedly connected to the bottom of the operating table, a first support table is fixedly connected to the top of the operating table, an annular detection device is fixedly connected to the surface of the first support table, and an annular cleaning mechanism is arranged on the top of the operating table;

[0009] The annular cleaning mechanism includes a support frame, the bottom of the support frame is fixedly connected to the top of the operating table, the surface of the support frame is fixedly connected to an outer ring, the inner surface of the outer ring is fixedly connected to a fixed plate, the inner cavity of the fixed plate is rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a third roller, the surface of the third roller is movably connected to an inner ring, the inner surface of the inner ring is fixedly connected to a soft brush, the outer surface of the inner ring is provided with annular teeth, and fixed rings are connected between the two end faces of the outer ring and the inner ring.

[0010] A support plate is fixedly connected to the top of the operating table, a rotating shaft is rotatably connected to the inner cavity of the support plate, and a first roller is fixedly connected to the surface of the rotating shaft.

[0011] One end of the rotating shaft is fixedly connected to a first gear, the top of the operating table is fixedly connected to a second supporting platform, the surface of the second supporting platform is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a second gear, and the first gear is meshingly connected to the second gear.

[0012] The top of the operating table is fixedly connected with an electric telescopic rod, and one end of the electric telescopic rod is fixedly connected with a lifting plate.

[0013] The inner cavity of the lifting plate is movably connected to a limiting column, a spring is sleeved on the surface of the limiting column, one end of the limiting column is fixedly connected to a first limiting block, and one end of the limiting column is fixedly connected to a second limiting block.

[0014] One end of the first limiting block is fixedly connected to a fixing rod, a surface of the fixing rod is fixedly connected to a limiting ring, and a second roller is rotatably connected to the surface of the fixing rod.

[0015] The top of the operating table is fixedly connected to a third support table, the surface of the third support table is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a third gear, and the third gear is meshingly connected to the annular tooth groove.

[0016] The annular detection device adopts an ultrasonic flaw detector.

[0017] Beneficial effects of the present invention:

[0018] The present invention drives the second gear to rotate through the operation of the first motor, thereby rotating the first gear meshed with the second gear, driving the coaxial first roller to rotate, and moving the steel pipe forward. The second motor drives the inner ring to rotate in the outer ring through the third gear and the annular tooth groove on the inner ring. The third roller supports and reduces friction between the inner ring and the outer ring so that the inner ring can rotate more smoothly. The inner ring will drive a soft brush to brush off dust attached to the surface of the steel pipe, and then the position of the cleaned steel pipe is sent to the annular detection device through the second roller for defect detection inside the steel pipe. The steel pipe goes from cleaning to detection, enters from one end of the equipment and exits from the other end, and is removed after no detection is required, which can greatly improve efficiency and detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the annular detection device and the support frame of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the first roller and the first gear of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the outer ring and the inner ring of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the soft brush and the annular tooth groove of the present invention;

[0024] Figure 5 It is a schematic structural diagram of the lifting plate and the fixing rod of the present invention.

[0025] The accompanying drawings are numerals in the figure: 1. operating table; 2. foot pad; 3. first supporting platform; 4. annular detection device; 5. annular cleaning mechanism; 501. supporting frame; 502. outer ring; 503. fixing plate; 504. rotating shaft; 505. third roller; 506. inner ring; 507. soft brush; 508. annular tooth groove; 509. fixing ring; 6. supporting plate; 7. rotating shaft; 8. first roller; 9. first gear; 10. second supporting platform; 11. first motor; 12. second gear; 13. electric telescopic rod; 14. third supporting platform; 15. second motor; 16. third gear; 17. lifting plate; 18. limiting column; 19. spring; 20. first limiting block; 21. fixing rod; 22. second roller; 23. second limiting block; 24. limiting ring. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0030] The present application embodiment discloses a nondestructive detection device for stainless steel defects. Figure 1 and Figure 3 and Figure 4 A nondestructive testing device for stainless steel defects includes an operating table 1, a foot pad 2 is fixedly connected to the bottom of the operating table 1, a first support table 3 is fixedly connected to the top of the operating table 1, an annular detection device 4 is fixedly connected to the surface of the first support table 3, and an annular cleaning mechanism 5 is arranged on the top of the operating table 1; the annular detection device adopts an ultrasonic flaw detector.

[0031] The annular cleaning mechanism 5 includes a support frame 501, the bottom of the support frame 501 is fixedly connected to the top of the operating table 1, an outer ring 502 is fixedly connected to the support frame 501, the inner surface of the outer ring 502 is fixedly connected to a fixed plate 503, the inner cavity of the fixed plate 503 is rotatably connected to a rotating shaft 504, the surface of the rotating shaft 504 is fixedly connected to a third roller 505, the surface of the third roller 505 is movably connected to an inner ring 506, the inner surface of the inner ring 506 is fixedly connected to a soft brush 507, the outer surface of the inner ring 506 is provided with annular tooth grooves 508, and fixed rings 509 are connected between the two end surfaces of the outer ring 502 and the inner ring 506.

[0032] Reference Figure 1 and Figure 2 A support plate 6 is fixedly connected to the top of the operating table 1, a rotating shaft 7 is rotatably connected to the inner cavity of the support plate 6, and a first roller 8 is fixedly connected to the surface of the rotating shaft 7. By arranging the rotating shaft 7 in the inner cavity of the support plate 6, the first roller 8 can rotate around the rotating shaft 7 to drive the steel pipe to move;

[0033] Reference Figure 1 and Figure 2 , one end of the rotating shaft 7 is fixedly connected to the first gear 9, the top of the operating table 1 is fixedly connected to the second support platform 10, the surface of the second support platform 10 is fixedly connected to the first motor 11, the output end of the first motor 11 is fixedly connected to the second gear 12, the first gear 9 is meshed and connected with the second gear 12, by setting the first motor 11, the power can be transmitted to the first gear 9 through the second gear 12 to make it rotate, so as to provide power for the displacement of the steel pipe, and the first motor 11 can be lifted and fixed through the second support platform 10;

[0034] Reference Figure 1 and Figure 5 The top of the operating table 1 is fixedly connected with an electric telescopic rod 13, and one end of the electric telescopic rod 13 is fixedly connected with a lifting plate 17. By setting the electric telescopic rod 13, the lifting plate 17 at one end thereof can be moved up and down, thereby controlling the movement of the clamping second roller 22;

[0035] Reference Figure 1 and Figure 5 The inner cavity of the lifting plate 17 is movably connected to a limiting column 18, and a spring 19 is sleeved on the surface of the limiting column 18. One end of the limiting column 18 is fixedly connected to a first limiting block 20, and one end of the limiting column 18 is fixedly connected to a second limiting block 23. By setting the limiting column 18, the spring 19 sleeved on the surface can be limited, which can prevent the spring 19 from shifting when compressed. By setting the first limiting block 20 and the second limiting block 23, the upper and lower positions of the spring 19 can be limited to prevent it from falling off. When the lifting plate 17 moves up and down, the spring 19 will be compressed after the second roller 22 is compressed to the steel pipe, providing a buffer for clamping the steel pipe to avoid damage to the equipment.

[0036] Reference Figure 2 and Figure 5 One end of the first limit block 20 is fixedly connected to a fixed rod 21, a limit ring 24 is fixedly connected to the surface of the fixed rod 21, and a second roller 22 is rotatably connected to the surface of the fixed rod 21. The limit ring 24 on the surface of the fixed rod 21 can limit the left and right positions of the second roller 22, so that it can be fixed in one position for rotation. The steel pipe can be limited by the second roller 22 descending and pressing the steel pipe in combination with the V-shaped design of the first roller 8, and the steel pipe can move along the roller direction;

[0037] Reference Figure 3 and Figure 4 A third support platform 14 is fixedly connected to the top of the operating table 1, a second motor 15 is fixedly connected to the surface of the third support platform 14, a third gear 16 is fixedly connected to the output end of the second motor 15, and the third gear 16 is meshed with the annular tooth groove 508. By setting the third gear 16 on the second motor 15, power can be transmitted to the inner ring 506. Through the meshing annular tooth groove 508, the inner ring 506 is rotated to achieve the purpose of driving the soft brush 507 to rotate. The third support platform 14 can provide a fixing and lifting effect on the second motor 15 so that the third gear 16 can accurately mesh with the annular tooth groove 508.

[0038] Working principle: When in use, insert the steel pipe and place it on the first roller 8. During testing, the electric telescopic rod 13 is extended and retracted to drive the lifting plate 17 to move downward until the spring 19 is compressed. At this time, the second roller 22 is fully pressed against the steel pipe. Since the first roller 8 and the second roller 22 are both V-shaped in the middle, the steel pipe can be limited. The first motor 11 drives the second gear 12 to rotate, thereby rotating the first gear 9 meshed with the second gear 12, driving the coaxial first roller 8 to rotate, so that the steel pipe moves forward. The second motor 15 works through the third gear The annular tooth groove 508 on the wheel 16 and the inner ring 506 drives the inner ring 506 to rotate in the outer ring 502. The third roller 505 supports and reduces friction between the inner ring 506 and the outer ring 502 so that the inner ring 506 can rotate more smoothly. The inner ring 506 will drive the soft brush 507 to brush off foreign matter attached to the surface of the steel pipe, and then the cleaned steel pipe position is sent to the annular detection device 4 through the second roller 22. The existing annular detection mechanism is provided with a plurality of detection heads for detection, which are distributed on the detection ring, and can detect all-round defects inside the steel pipe.

Claims

1. A nondestructive testing device for stainless steel defects, characterized by: The operating table (1) comprises a foot pad (2) fixedly connected to the bottom of the operating table (1), a first support table (3) fixedly connected to the top of the operating table (1), an annular detection device (4) fixedly connected to the surface of the first support table (3), and an annular cleaning mechanism (5) arranged on the top of the operating table (1); The annular cleaning mechanism (5) comprises a support frame (501), the bottom of the support frame (501) is fixedly connected to the top of the operating table (1), the surface of the support frame (501) is fixedly connected to an outer ring (502), the inner surface of the outer ring (502) is fixedly connected to a fixing plate (503), the inner cavity of the fixing plate (503) is rotatably connected to a rotating shaft (504), the surface of the rotating shaft (504) is fixedly connected to a third roller (505), the surface of the third roller (505) is movably connected to an inner ring (506), the inner surface of the inner ring (506) is fixedly connected to a soft brush (507), the outer surface of the inner ring (506) is provided with an annular tooth groove (508), and fixing rings (509) are connected between the two end surfaces of the outer ring (502) and the inner ring (506).

2. The nondestructive testing device for stainless steel defects according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a support plate (6), the inner cavity of the support plate (6) is rotatably connected to a rotating shaft (7), and the surface of the rotating shaft (7) is fixedly connected to a first roller (8).

3. A stainless steel material defect nondestructive testing device as claimed in claim 2, characterized in that: One end of the rotating shaft (7) is fixedly connected to a first gear (9), and the top of the operating platform (1) is fixedly connected to a second supporting platform (10).

4. A stainless steel material defect nondestructive testing device as claimed in claim 3, characterized in that: A first motor (11) is fixedly connected to the surface of the second support platform (10), a second gear (12) is fixedly connected to the output end of the first motor (11), and the first gear (9) is meshingly connected to the second gear (12).

5. The nondestructive testing device for stainless steel defects according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to an electric telescopic rod (13), and one end of the electric telescopic rod (13) is fixedly connected to a lifting plate (17).

6. A stainless steel material defect nondestructive testing device as claimed in claim 5, characterized in that: The inner cavity of the lifting plate (17) is movably connected to a limit column (18), a spring (19) is sleeved on the surface of the limit column (18), one end of the limit column (18) is fixedly connected to a first limit block (20), and one end of the limit column (18) is fixedly connected to a second limit block (23).

7. A stainless steel material defect nondestructive testing device as claimed in claim 6, characterized in that: One end of the first limiting block (20) is fixedly connected to a fixing rod (21), a surface of the fixing rod (21) is fixedly connected to a limiting ring (24), and a second roller (22) is rotatably connected to the surface of the fixing rod (21).

8. The nondestructive testing device for stainless steel defects according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a third support table (14), the surface of the third support table (14) is fixedly connected to a second motor (15), the output end of the second motor (15) is fixedly connected to a third gear (16), and the third gear (16) is meshingly connected to the annular tooth groove (508).

9. The nondestructive testing device for stainless steel defects according to claim 1, characterized in that: The annular detection device (4) adopts an ultrasonic flaw detector.

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