Eddy current detection matching mechanism

Abstract

The utility model belongs to the technical field of eddy current detection, and particularly relates to an eddy current detection matching mechanism, which comprises a processing table, a detector arranged on the side surface of the processing table and a probe arranged on the inner wall of the processing table, a mounting seat is arranged on the inner wall of the processing table, and a first motor is arranged on the upper surface of the mounting seat. The output end of the first motor is connected with a rotating seat, and a bearing ring is mounted between the rotating seat and the mounting seat. When the second motor operates, the first screw rod is driven to rotate through the driving bevel gear and the driven bevel gear, when the first screw rod rotates, the inner lining plate is driven to move to the inner wall of the circular pipe through the first inner threaded pipe, the circular pipe can be fixed, and when the first motor operates, the circular pipe is driven to rotate through the rotating seat; and when a third motor runs, a second threaded rod drives a second inner threaded pipe to transversely move, and when the second inner threaded pipe transversely moves, the round pipe can be driven to transversely move through a mounting base, a first motor and a rotating base, so that the round pipe can be conveniently and automatically detected in all directions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of eddy current testing, and particularly relates to an eddy current testing matching mechanism. BACKGROUND

[0002] Eddy current testing refers to a non-destructive testing method for evaluating certain properties of conductive materials and workpieces or finding defects by measuring the change of induced eddy current in the workpiece. Eddy current testing is based on electromagnetic induction principle. When a conductor is placed in an alternating magnetic field, induced current exists in the conductor, that is, eddy current is generated. The distribution and current size of the eddy current are determined by the shape and size of the coil, test frequency, electrical conductivity, magnetic permeability, shape and size of the conductor, distance between the conductor and the coil, and defects on the surface of the conductor. Changes in various factors of the conductor itself (such as electrical conductivity, magnetic permeability, shape, size and defects) will lead to changes in the eddy current. The testing method for determining the properties and state of the conductor by using this phenomenon is called eddy current testing.

[0003] During the eddy current testing process, alternating current passes through the coil and generates an oscillating magnetic field. If the probe and its magnetic field are close to conductive materials (such as metal test workpieces), the circulating electron current (called eddy current) begins to flow through the metal like a whirlpool in a stream. The eddy current flowing through the metal in turn generates its own magnetic field, which interacts with the coil and its magnetic field through mutual inductance. Changes in the thickness or defects of the metal (such as near-surface cracks) will break or change the amplitude and mode of the eddy current and the generated magnetic field. This in turn affects the movement of electrons in the coil by changing the electrical impedance of the coil. The eddy current instrument plots the changes in impedance amplitude and phase angle, and a well-trained operator can use it to identify changes in the test workpiece.

[0004] The matching structure of eddy current testing includes the main components of the eddy current testing system, supporting equipment and supporting services. These components and equipment together form the basic framework of the eddy current testing system, and the supporting services provide more comprehensive and professional support for customers.

[0005] The existing eddy current testing matching structure indeed faces a significant challenge when performing eddy current testing on circular pipes: in order to ensure the accuracy of the test results, the operator usually needs to manually hold the probe and perform detection around the circular pipe. This operation not only has high technical difficulty, requiring the operator to have high professional skills and meticulous operation methods to ensure that the probe can move uniformly and stably along the surface of the circular pipe, thereby capturing accurate eddy current signals, but also is time-consuming and labor-intensive, with low efficiency, especially when facing a large number of or large-sized circular pipes, which is particularly prominent. This not only increases the detection cost, but also may lead to fluctuations and uncertainties in the test results due to human factors. SUMMARY

[0006] The utility model discloses a vortex detection matching mechanism, to solve the accuracy of the detection result at present, usually need to operate personnel to hold the probe artificial detection around the pipe, this operation not only technical difficulty is big, requires the operation personnel to have the high professional skill and meticulous operation method, to ensure that the probe can be even, stably along the pipe surface movement, to capture accurate vortex signal, and the whole detection process is time -consuming and labor -intensive, and the efficiency is low, especially when facing a large amount or large -size pipe, this problem is particularly prominent, this not only increases the detection cost, but also can cause the fluctuation and the problem of uncertainty of detection result because of human factor.

[0007] To realize above -mentioned purpose, the utility model provides the following technical scheme: a vortex detection matching mechanism, including the machining table, the detector of installing in the lateral surface of machining table and the probe of installing in the inner wall of machining table, the inner wall of machining table is provided with mounting seat, the upper surface of mounting seat is installed with first motor, the output of first motor is connected with rotating seat, bearing ring is installed between rotating seat and mounting seat, the inside of rotating seat is installed with second motor, the output of second motor is connected with driving bevel gear, the inside of rotating seat is installed with first bearing seat, the inside of first bearing seat is connected with first screw rod and penetrates, the end of first screw rod is connected with driven bevel gear, the surface of first screw rod is connected with first female screw pipe, the end of first female screw pipe is connected with inner lining plate, the lateral surface of inner lining plate is connected with first sliding sleeve, the lateral surface of rotating seat is connected with first guide rail.

[0008] As a vortex detection matching mechanism of the utility model, preferably, the rotating seat constitutes the rotating structure between bearing ring and mounting seat, the first sliding sleeve and the first guide rail are arranged in three groups in the form of annular array with the center axis of the rotating seat as the center, and the first sliding sleeve and the first guide rail are connected in sliding mode.

[0009] As a vortex detection matching mechanism of the utility model, preferably, the first bearing seat, the first screw rod, the driven bevel gear, the first female screw pipe and the inner lining plate are arranged in three groups in the form of annular array with the center axis of the driving bevel gear as the center, the first screw rod constitutes the rotating structure between the first bearing seat and the rotating seat, the first screw rod and the first female screw pipe are connected in threaded mode, and the driving bevel gear and the driven bevel gear constitute the meshing structure.

[0010] As a kind of eddy current testing supporting mechanism of the utility model, preferably, the surface of processing platform is connected with second guide rail, the lower surface of mounting seat close to second guide rail is connected with second sliding sleeve, second internal thread pipe is connected in the inside of mounting seat, second screw rod is penetrated in the inside of second internal thread pipe, the output end of third motor is connected in the end of second screw rod, second bearing seat is installed between second screw rod and processing platform.

[0011] As a kind of eddy current testing supporting mechanism of the utility model, preferably, the surface of processing platform is connected with second guide rail, the lower surface of mounting seat close to second guide rail is connected with second sliding sleeve, second internal thread pipe is connected in the inside of mounting seat, second screw rod is penetrated in the inside of second internal thread pipe, the output end of third motor is connected in the end of second screw rod, second bearing seat is installed between second screw rod and processing platform.

[0012] As a kind of eddy current testing supporting mechanism of the utility model, preferably, the surface of processing platform is connected with second guide rail, the lower surface of mounting seat close to second guide rail is connected with second sliding sleeve, second internal thread pipe is connected in the inside of mounting seat, second screw rod is penetrated in the inside of second internal thread pipe, the output end of third motor is connected in the end of second screw rod, second bearing seat is installed between second screw rod and processing platform.

[0013] As a kind of eddy current testing supporting mechanism of the utility model, preferably, the surface of processing platform is connected with second guide rail, the lower surface of mounting seat close to second guide rail is connected with second sliding sleeve, second internal thread pipe is connected in the inside of mounting seat, second screw rod is penetrated in the inside of second internal thread pipe, the output end of third motor is connected in the end of second screw rod, second bearing seat is installed between second screw rod and processing platform.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses, circular tube is connected in the surface of inner lining board and runs second motor, when second motor runs, can drive first screw rod rotation through driving bevel gear and driven bevel gear, when first screw rod rotates, can drive inner lining board to the direction of moving away from rotary seat through first internal thread pipe, when inner lining board moves to the inner wall of circular tube, can fix circular tube, when first motor runs, can drive circular tube rotation through rotary seat, so this can carry out annular detection to the surface of circular tube through probe, and when third motor runs, drives second internal thread pipe transverse motion through second screw rod, when second internal thread pipe transverse motion, can drive circular tube transverse motion through mounting seat, first motor and rotary seat, so this can conveniently carry out omnibearing automatic detection to circular tube, to improve the precision and efficiency of circular tube detection;

[0016] When telescopic rod contracts, can drive activity seat to move down, activity seat moves down can drive probe to move down, so this can adjust the position of probe, when the end of probe moves to the surface of circular tube, so this can detect circular tube of different diameters through adjusting structure, improve the applicability of mechanism use. ACCURACY OF DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present application, and form a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0018] Figure 1 The overall assembly structure schematic diagram provided for the embodiments of the present application.

[0019] Figure 2 The circular pipe fixing structure partial view provided for the embodiments of the present application.

[0020] Figure 3 The circular pipe fixing structure exploded view provided for the embodiments of the present application.

[0021] Figure 4 The circular pipe fixing structure sectional view provided for the embodiments of the present application.

[0022] Figure 5 The first screw rod driving structure schematic diagram provided for the embodiments of the present application.

[0023] Figure 6 The probe connecting structure schematic diagram provided for the embodiments of the present application.

[0024] Figure 7 The structure schematic diagram provided for the embodiments of the present application Figure 4 at A.

[0025] In the drawing: 1, processing table; 2, detector; 3, probe; 4, mounting seat; 5, first motor; 6, rotating seat; 7, bearing ring; 8, second motor; 9, driving bevel gear; 10, first bearing seat; 11, first screw rod; 12, driven bevel gear; 13, first internal thread pipe; 14, inner lining plate; 15, first sliding sleeve; 16, first guide rail; 17, second guide rail; 18, second sliding sleeve; 19, second internal thread pipe; 20, second screw rod; 21, third motor; 22, second bearing seat; 23, support plate; 24, telescopic rod; 25, movable seat; 26, guide rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-7The utility model provides the following technical scheme: A vortex detection matching mechanism, including processing platform 1, install the detector 2 of processing platform 1 side surface and install the probe 3 of processing platform 1 inner wall, the inner wall of processing platform 1 is provided with mounting seat 4, the upper surface of mounting seat 4 is installed with first motor 5, the output of first motor 5 is connected with rotating seat 6, bearing ring 7 is installed between rotating seat 6 and mounting seat 4, the inside of rotating seat 6 is installed with second motor 8, the output of second motor 8 is connected with driving bevel gear 9, the inside of rotating seat 6 is installed with first bearing seat 10, first screw rod 11 is connected with the inside of first bearing seat 10, the end of first screw rod 11 is connected with driven bevel gear 12, the surface of first screw rod 11 is sleeved with first female screw pipe 13, the end of first female screw pipe 13 is connected with inner lining plate 14, the side surface of inner lining plate 14 is connected with first sliding sleeve 15, the side surface of rotating seat 6 is connected with first guide rail 16;

[0028] When using the vortex detection matching mechanism, first, the circular pipe is fixed, then the probe 3 moves on the surface of the circular pipe, and the oscillating magnetic field generated by the alternating current passing through the coil when the probe 3 runs can detect the crack of the circular pipe, so that the circular pipe can be detected.

[0029] Preferably, the rotating seat 6 and the mounting seat 4 constitute a rotating structure through the bearing ring 7, the first sliding sleeve 15 and the first guide rail 16 are arranged in a ring array with the center axis of the rotating seat 6 as the center, and the first sliding sleeve 15 and the first guide rail 16 are connected in sliding mode.

[0030] In specific use, when the inner lining plate 14 is subjected to a force, the first sliding sleeve 15 can slide on the surface of the first guide rail 16, so that the movement direction of the inner lining plate 14 can be limited.

[0031] Preferably, the first bearing seat 10, the first screw rod 11, the driven bevel gear 12, the first female screw pipe 13 and the inner lining plate 14 are arranged in a ring array with the center axis of the driving bevel gear 9 as the center, the first screw rod 11 and the rotating seat 6 constitute a rotating structure through the first bearing seat 10, the first screw rod 11 and the first female screw pipe 13 are connected in threaded mode, and the driving bevel gear 9 and the driven bevel gear 12 constitute a meshing structure.

[0032] In specific use, when the second motor 8 runs, the driving bevel gear 9 can be driven to rotate, the driving bevel gear 9 can drive the driven bevel gear 12 to rotate through the meshing structure when the driving bevel gear 9 rotates, and the driven bevel gear 12 can drive the first screw rod 11 to rotate in the first bearing seat 10, so that the transmission between the second motor 8 and the first screw rod 11 can be realized.

[0033] Preferably, the surface of the processing table 1 is connected with a second guide rail 17, the lower surface of the mounting base 4 close to the second guide rail 17 is connected with a second sliding sleeve 18, the inside of the mounting base 4 is connected with a second internally threaded pipe 19, the inside of the second internally threaded pipe 19 is penetrated by a second screw rod 20, the end of the second screw rod 20 is connected with the output end of a third motor 21, and the second screw rod 20 is provided with a second bearing seat 22 between the processing table 1;

[0034] Preferably, the second guide rail 17 and the second sliding sleeve 18 are symmetrically arranged on the two sides of the second screw rod 20, the second guide rail 17 and the second sliding sleeve 18 are in sliding connection, the second screw rod 20 and the second internally threaded pipe 19 are in threaded connection, and the second screw rod 20 and the processing table 1 form a rotating structure through the second bearing seat 22;

[0035] In specific use, the mounting base 4 can drive the second sliding sleeve 18 to slide on the surface of the second guide rail 17 under the action of force, so that the movement direction of the mounting base 4 is limited.

[0036] Preferably, the inner wall of the processing table 1 is connected with a supporting plate 23, the bottom side of the supporting plate 23 is provided with an extension rod 24, the extension end of the extension rod 24 is connected with a movable seat 25, the probe 3 is arranged in the inside of the movable seat 25, and the surface of the supporting plate 23 penetrating the inside of the movable seat 25 is connected with a guide rod 26.

[0037] Preferably, the movable seat 25 and the extension rod 24 form a lifting structure, and the movable seat 25 and the guide rod 26 are in sliding connection.

[0038] In specific use, the movable seat 25 can slide on the surface of the guide rod 26 under the action of force, so that the movement direction of the movable seat 25 is limited.

[0039] In specific use, the working principle of the utility model is as follows: when the vortex detection matching mechanism is used for monitoring a circular pipe, first, the circular pipe is sleeved on the surface of the inner lining plate 14, then the second motor 8 can be operated, the second motor 8 can drive the driving bevel gear 9 to rotate when the second motor 8 is operated, the driving bevel gear 9 can drive the first screw rod 11 to rotate through the driven bevel gear 12 when the driving bevel gear 9 rotates, the first screw rod 11 can drive the first internally threaded pipe 13 to move away from the rotating seat 6 through the threaded structure when the first screw rod 11 rotates, the first internally threaded pipe 13 can move the inner lining plate 14 when the first internally threaded pipe 13 moves, and the circular pipe can be fixed when the inner lining plate 14 moves to the inner wall of the circular pipe.

[0040] Then the telescopic rod 24 can be operated, when the telescopic rod 24 is retracted, the movable seat 25 can be driven to move downward, the movable seat 25 moving downward can drive the probe 3 to move downward, when the end of the probe 3 moves to the surface of the circular pipe, at this time, the first motor 5 can be operated, when the first motor 5 is operated, the rotating seat 6 can be driven to rotate, when the rotating seat 6 rotates, the circular pipe can be driven to rotate, so that the surface of the circular pipe can be circularly detected by the probe 3;

[0041] At the same time, the third motor 21 can be operated, when the third motor 21 is operated, the second screw rod 20 can be driven to rotate, when the second screw rod 20 rotates, the second inner threaded pipe 19 can be driven to move transversely through the threaded structure, when the second inner threaded pipe 19 moves transversely, the first motor 5 can be driven to move transversely through the mounting seat 4, the first motor 5 moving transversely can drive the circular pipe to move transversely through the rotating seat 6, so that the circular pipe can be conveniently detected in all directions.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An eddy current testing mechanism, comprising a processing table (1), a testing instrument (2) mounted on the side surface of the processing table (1), and a probe (3) mounted on the inner wall of the processing table (1), characterized in that: The inner wall of the processing table (1) is provided with a mounting base (4). A first motor (5) is mounted on the upper surface of the mounting base (4). The output end of the first motor (5) is connected to a rotating seat (6). A bearing ring (7) is installed between the rotating seat (6) and the mounting base (4). A second motor (8) is installed inside the rotating seat (6). A driving bevel gear (9) is connected to the output end of the second motor (8). A first bearing seat (10) is installed inside the rotating seat (6). A first screw (11) is connected through the inside of the first bearing seat (10). A driven bevel gear (12) is connected to the end of the first screw (11). A first internal threaded tube (13) is sleeved on the surface of the first screw (11). An inner liner plate (14) is connected to the end of the first internal threaded tube (13). A first sliding sleeve (15) is connected to the side surface of the inner liner plate (14). A first guide rail (16) is connected to the side surface of the rotating seat (6).

2. The eddy current detection mechanism according to claim 1, characterized in that: The rotating seat (6) forms a rotating structure with the mounting seat (4) through the bearing ring (7). The first sliding sleeve (15) and the first guide rail (16) are arranged in a ring array with the central axis of the rotating seat (6) as the center. The first sliding sleeve (15) and the first guide rail (16) are slidably connected.

3. The eddy current detection mechanism according to claim 1, characterized in that: The first bearing housing (10), the first screw (11), the driven bevel gear (12), the first internal threaded tube (13) and the inner liner (14) are arranged in a ring array with the central axis of the driving bevel gear (9) as the center. The first screw (11) forms a rotating structure with the first bearing housing (10) and the rotating seat (6). The first screw (11) and the first internal threaded tube (13) are connected by threads. The driving bevel gear (9) and the driven bevel gear (12) form a meshing structure.

4. The eddy current detection mechanism according to claim 1, characterized in that: The surface of the processing table (1) is connected to a second guide rail (17), and the lower surface of the mounting base (4) near the second guide rail (17) is connected to a second sliding sleeve (18). The interior of the mounting base (4) is connected to a second internal threaded tube (19), and the interior of the second internal threaded tube (19) is connected to a second screw (20). The end of the second screw (20) is connected to the output end of the third motor (21), and a second bearing seat (22) is installed between the second screw (20) and the processing table (1).

5. The eddy current detection mechanism according to claim 4, characterized in that: The second guide rail (17) and the second sliding sleeve (18) are symmetrically arranged on both sides of the second screw (20). The second guide rail (17) and the second sliding sleeve (18) are slidably connected. The second screw (20) and the second internal threaded tube (19) are threadedly connected. The second screw (20) forms a rotating structure with the processing table (1) through the second bearing seat (22).

6. The eddy current detection mechanism according to claim 1, characterized in that: The inner wall of the processing table (1) is connected to a support plate (23), and a telescopic rod (24) is installed on the bottom side of the support plate (23). The telescopic end of the telescopic rod (24) is connected to a movable seat (25). The probe (3) is installed through the interior of the movable seat (25), and a guide rod (26) is connected to the surface of the support plate (23) that penetrates the interior of the movable seat (25).

7. The eddy current detection mechanism according to claim 6, characterized in that: The movable seat (25) and the telescopic rod (24) form a lifting structure, and the movable seat (25) and the guide rod (26) are slidably connected.

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