CN217385324U

CN217385324U - Multifunctional external penetration type eddy current detection probe structure

Info

Publication number: CN217385324U
Application number: CN202220689399.9U
Authority: CN
Inventors: 吴玉宗; 张权; 武闯; 耿勇
Original assignee: Taixu Testing Technology Shanghai Co ltd
Current assignee: Taixu Testing Technology Shanghai Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-09-06
Anticipated expiration: 2032-03-28

Abstract

The utility model provides a multi-functional outer formula eddy current testing probe structure that passes, including public test probe, female test probe and joint spare, public test probe and female test probe can splice through joint spare and also can part together, and public test probe and female test probe include the casing, and the detection through-hole that pierces through both ends is offered to the centre of casing, still is provided with the detection coil that is used for eddy current testing on the casing, and detection coil and the coincidence of the central line that detects the through-hole, detection coil electric connection have the bayonet joint. The utility model discloses public test probe and female test probe concatenation together just form the eddy current test probe from the formula, separately just form the eddy current test probe of his formula, have the function of two kinds of eddy current test probes, have mutation defect detection, slow change defect detection, thickness measurement or the multi-functional usage that the material differentiation detected, reduced user use cost, improved detection efficiency, simple structure, the practicality is strong, low in production cost, simple to use.

Description

Multifunctional external penetration type eddy current detection probe structure

Technical Field

The utility model relates to an eddy current testing field, in particular to multi-functional outer formula eddy current testing probe structure that passes.

Background

Eddy current inspection refers to a nondestructive inspection method for nondestructively evaluating some properties of a conductive material and a workpiece thereof or finding defects by measuring the change of induced eddy current in the inspected workpiece by using the principle of electromagnetic induction. In industrial production, eddy current testing is one of the main means for controlling the quality of various metal materials, a few non-metal conductive materials such as graphite and carbon fiber composite materials, and the like, and the quality of products thereof, and plays an important role in the technical field of nondestructive testing.

Due to different application purposes, when the method is used for high-sensitivity defects such as sand eyes, pitting corrosion, catastrophe cracks and the like, the spacing between two receiving coils generally adopts a self-comparison formula as shown in fig. 1, namely: two close receiving coils a2 are arranged on a coaxial line in one eddy current inspection probe a1, the two receiving coils a2 are designed to be close, and the two receiving coils a2 compare the differences of electromagnetic fields with each other.

For screening mixed materials made of different metal materials or detecting wall thickness variation, a standard equation is often adopted, as shown in fig. 2, that is: two parallel receiving coils a2 are arranged in an eddy current test probe A3, one for reference and one for test.

Therefore, the traditional external penetration eddy current inspection probe is usually good at being suitable for a certain scene or a specific defect, and the change of the scene and the requirement needs to replace different eddy current inspection probes, which brings certain cost increase for a user.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-functional outer formula eddy current testing probe structure that passes has solved vortex inspection time measuring, and is different according to the detection scene, needs to adopt from comparing formula eddy current testing probe or other than formula eddy current testing probe, from comparing formula eddy current testing probe and other than the unable general defect of formula eddy current testing probe.

The technical scheme of the utility model is realized like this:

the utility model provides a multi-functional outer formula eddy current testing probe structure that passes, including public test probe, female test probe and joint spare, public test probe and female test probe can splice through joint spare and also can part together, public test probe and female test probe include the casing, the detection through-hole that pierces through both ends is offered to the centre of casing, still be provided with the detection coil that is used for eddy current testing on the casing, the coincidence of the central line of detection coil and detection through-hole, detection coil electric connection has the bayonet joint, the bayonet joint has fixedly on the casing.

As a further technical scheme, the clamping piece comprises an inserting column fixed on the male detection probe and an inserting hole arranged on the female detection probe, and the inserting column and the inserting hole are correspondingly arranged. Or, the joint spare is including fixing at the external screw tube of public detection probe tip and fixing the internal thread pipe of female detection probe tip, external screw tube and internal thread pipe correspond the setting, and the central line coincidence of external screw tube, internal thread pipe and detection through-hole.

As a further technical scheme, the number of the inserting columns is two, three or four, the inserting columns are uniformly fixed on the end face of the male detection probe, and the inserting holes are arranged on the end face of the female detection probe.

As a further technical scheme, the terminal surface of casing is provided with cylindrical boss, the central line of cylindrical boss with detect the central line coincidence of through-hole, detect the through-hole and pass the center of cylindrical boss, the circumference side of cylindrical boss has seted up coil winding recess, detection coil winding is in coil winding recess

As a further technical scheme, the shell is a cylindrical shell, a right triangular prism shell or a rectangular column shell.

As a further technical scheme, the bottom end of the cylindrical shell is provided with a horizontal placing surface.

The utility model has the advantages that: the utility model discloses a public test probe and female test probe can splice together also can part through joint spare, public test probe and female test probe concatenation just form the eddy current test probe from the formula together, public test probe and female test probe part just form the eddy current test probe of his formula of comparing, the function that has two kinds of eddy current test probes, mutation defect detection has, slow change defect detection, the multifunctional purpose that detects is distinguished to thickness measurement or material, user use cost is reduced, detection efficiency is improved, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, low in production cost, and is simple to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a conventional self-comparing eddy current probe;

FIG. 2 is a schematic structural diagram of a conventional Zebra-type eddy current probe;

fig. 3 is a state diagram in which the male detection probe and the female detection probe are spliced together by the clip member in embodiment 1;

FIG. 4 is a state diagram in which the male measuring probe and the female measuring probe are separated in example 1;

FIG. 5 is a schematic view of the structure of FIG. 4 at another angle;

FIG. 6 is a schematic view of another angle of FIG. 5;

FIG. 7 is a state diagram of the use of the male detecting probe and the female detecting probe in example 1 when they are spliced together;

FIG. 8 is a view showing a state in which the male measuring probe and the female measuring probe are separated from each other in the embodiment 1;

fig. 9 is a schematic structural view of embodiment 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 3-8, a multi-functional outer formula eddy current testing probe structure that passes through, including public test probe 1, female test probe 2 and joint spare, public test probe 1 and female test probe 2 can splice together also can part through joint spare, public test probe 1 and female test probe 2 include casing 31, the detection through-hole 32 that pierces through both ends is seted up to the centre of casing 31, still be provided with detection coil 33 that is used for eddy current testing on the casing 31, detection coil 33 and the coincidence of the central line that detects through-hole 32, detection coil 33 electric connection has bayonet joint 34, bayonet joint 34 has fixedly on casing 31. The plug 34 is used for connecting signal lines, on one hand, supplying current to the detection coil 33 through the signal lines, on the other hand, the data of the detection coil 33 can be transmitted outwards, and the detection coil 33 can be a copper coil.

As a further technical scheme, the clamping member includes a plug 51 fixed on the male detection probe 1 and a jack 52 provided on the female detection probe, and the plug 51 and the jack 52 are correspondingly arranged.

As a further technical solution, the number of the inserting columns 51 is two, three or four, the inserting columns 51 are uniformly fixed on the end surface of the male detection probe 1, and the inserting holes 52 should be formed on the end surface of the female detection probe 2.

As a further technical solution, a cylindrical boss 35 is provided on the end face of the housing 31, the center line of the cylindrical boss 36 coincides with the center line of the detection through hole 32, the detection through hole 32 passes through the center of the cylindrical boss 35, a coil winding groove 36 is provided on the circumferential side face of the cylindrical boss 35, the detection coil 33 is wound in the coil winding groove 36

As a further technical solution, the housing 31 is a cylindrical housing, a right triangular prism housing or a rectangular prism housing.

As a further solution, the bottom end of the cylindrical housing is provided with a horizontal resting surface 37.

The utility model discloses a public test probe 1 and female test probe 2 can splice together through joint spare also can part, public test probe 1 and female test probe 2 splice together just form the eddy current test probe from the formula, public test probe 1 and female test probe 2 part just form the eddy current test probe of his formula, the function that has two kinds of eddy current test probes, it detects to have sudden change defect, slowly become defect detection, thickness measurement or the multi-functional usage that the material distinguished and detects, user use cost has been reduced, detection efficiency has been improved, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, low in production cost, and the clothes hanger is simple to use.

The utility model discloses according to the electromagnetic induction principle, the detection coil 33 that carries the alternating current can be passed its by the measuring metal rod 8 induction vortex, the vortex of response can influence detection coil 33 original magnetic field distribution on every side in turn, thereby the measuring impedance that leads to detecting coil 33 changes, the vortex has carried the thickness of being surveyed metal rod 8, defects, information such as conductivity, can deduce the relevant parameter of being surveyed metal rod 8 through measuring the detection coil 33 impedance change that arouses because of the vortex, can know according to the parameter that obtains whether there is the defect by measuring metal rod 8.

Example 2

Referring to fig. 9, the present embodiment is different from embodiment 1 in that: the joint spare is including fixing at the external screw tube 61 of 1 tip of public inspection probe and fixing the internal thread pipe 62 of 2 tips of female inspection probe, external screw tube 61 and internal thread pipe 62 correspond the setting, and the central line coincidence of external screw tube 61, internal thread pipe 62 and detection through-hole 32.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional outer formula eddy current testing probe structure that passes through which characterized in that: including public test probe, female test probe and joint spare, public test probe and female test probe can splice together and part through the joint spare, and public test probe and female test probe include the casing, and the detection through-hole that pierces through both ends is seted up to the centre of casing, still is provided with the detection coil that is used for eddy current detection on the casing, and the central line coincidence of detection coil and detection through-hole, detection coil electric connection has the bayonet joint, and the bayonet joint has fixedly on the casing.

2. The structure of a multi-functional external-penetration eddy current inspection probe according to claim 1, wherein: the joint spare is including fixing insert the post on public test probe and offer jack on the female test probe, insert the post and the jack corresponds the setting.

3. The structure of a multi-functional external-penetration eddy current inspection probe according to claim 2, wherein: the inserting columns are two, three or four, the inserting columns are uniformly fixed on the end face of the male detection probe, and the inserting holes are formed in the end face of the female detection probe.

4. The structure of a multi-functional external-penetration eddy current inspection probe according to claim 1, wherein: the joint spare is including fixing the external screw tube at public detection probe tip and fixing the internal thread pipe of female detection probe tip, external screw tube and internal thread pipe correspond the setting, and external screw tube, internal thread pipe and the coincidence of the central line that detects the through-hole.

5. The structure of a multi-functional external-penetration eddy current inspection probe according to claim 1, wherein: the terminal surface of casing is provided with cylindrical boss, the central line of cylindrical boss with detect the coincidence of central line of through-hole, detect the through-hole and pass the center of cylindrical boss, coil winding recess has been seted up to the circumference side of cylindrical boss, it twines in coil winding recess to detect the coil.

6. The structure of a multi-functional external-penetration eddy current inspection probe according to claim 1, wherein: the shell is a cylindrical shell, a regular triangular prism-shaped shell or a rectangular column shell.

7. The structure of a multi-functional external-penetration eddy current inspection probe according to claim 6, wherein: the bottom end of the cylindrical shell is provided with a horizontal placing surface.