CN204302241U

CN204302241U - For the ultrasonic probe detected in pore

Info

Publication number: CN204302241U
Application number: CN201420597002.9U
Authority: CN
Inventors: 缪洪生
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-10-15
Filing date: 2014-10-15
Publication date: 2015-04-29
Anticipated expiration: 2024-10-15

Abstract

The utility model discloses a kind of ultrasonic probe for detecting in pore, it comprises: shell, is provided with two joints; Voussoir, its cast in the enclosure, and the sound insulating layer that there are two symmetrically arranged half voussoirs and be arranged between two and half voussoirs, the end face of half voussoir is inclined plane, and end face and intersection below and the angle α between end face and intersection are above 5 ° ~ 50 °, and the intersection of end face and lateral surface and the angle β between bottom surface and the intersection of lateral surface are 5 ° ~ 49 °; Two piezoelectric chips, it is attached to the end face of half corresponding voussoir respectively, and piezoelectric chip is connected with corresponding joint respectively by lead-in wire, and piezoelectric chip is connected with shell respectively by ground wire.The utility model reduces blind area on it, can be convenient to the carrying out flaw detection that internal diameter is the pore inside of Φ 5mm ~ 16mm.

Description

For the ultrasonic probe detected in pore

Technical field

The utility model relates to a kind of ultrasonic probe for detecting in pore, belongs to metal or nonmetal defect-detecting equipment technical field, is specially adapted to the carrying out flaw detection that internal diameter is the pore of Φ 5 ~ 16mm.

Background technology

At present, prior art is to the carrying out flaw detection of pore, can only detect by pipe extroversion pipe, the carrying out flaw detection of this detection mode to outer tube layer is more accurate, difficulty is also lower, but can not degree of impairment very exactly in detector tube, on the other hand, due to its outer wall of general pipeline being covered with a lot of object, for example cable etc., in pipe extroversion pipe, the carrying out flaw detection of flaw detection very not easily, so the carrying out flaw detection to pore must be carried out in pore, but the mode of carrying out flaw detection in this pore, its difficulty is very large, especially internal diameter is that the carrying out flaw detection of the pore of Φ 5mm ~ 16mm is more difficult.

Summary of the invention

Technical problem to be solved in the utility model is the defect overcoming prior art, providing a kind of ultrasonic probe for detecting in pore, which reducing blind area on it, can be convenient to the carrying out flaw detection that internal diameter is the pore inside of Φ 5mm ~ 16mm.

In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of ultrasonic probe for detecting in pore, and it comprises:

Shell, is provided with two joints;

Voussoir, its cast in the enclosure, and the sound insulating layer that there are two symmetrically arranged half voussoirs and be arranged between two and half voussoirs, the end face of half voussoir is inclined plane, and end face and intersection below and the angle α between end face and intersection are above 5 ° ~ 50 °, and the intersection of end face and lateral surface and the angle β between bottom surface and the intersection of lateral surface are for being 5 ° ~ 49 °;

Two piezoelectric chips, it is attached on the end face of half corresponding voussoir respectively, and piezoelectric chip is connected with corresponding joint respectively by lead-in wire, and piezoelectric chip is connected with shell respectively by ground wire.

Being coupled to the flaw detection of pore longitudinal direction to be conducive to further, reaching the requirement of face contact, reduce acoustical energy losses, reduce clutter, improve flaw detection sensitivity, the bottom surface of described voussoir is match and the curved-surface structure of outwardly convex with pore inwall radian.

Being coupled to the flaw detection of pore transverse direction to be conducive to further, reaching the requirement of face contact, reduce acoustical energy losses, reduce clutter, improve flaw detection sensitivity, the lateral surface of described voussoir is match and the curved-surface structure of outwardly convex with pore inwall radian.

Further, piezoelectric chip is made up of piezoceramic material.

After have employed technique scheme, the utility model passes through the position of end face relative to bottom surface of restriction half voussoir, change its incidence angle β and inclined angle alpha, thus reduce blind area on it, reach and be convenient to the object that internal diameter is the carrying out flaw detection of the pipe with small pipe diameter pore inside of Φ 5 ~ 16mm.

Accompanying drawing explanation

Fig. 1 is the structural representation of the ultrasonic probe for detecting in pore of the present utility model;

Fig. 2 is the B-B sectional view of Fig. 1;

Fig. 3 is the C-C sectional view of Fig. 1;

Fig. 4 is the structural representation of voussoir of the present utility model.

Detailed description of the invention

In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail.

As shown in figures 1-4, a kind of ultrasonic probe for detecting in pore, it comprises:

Shell 1, is provided with two joints 11;

Voussoir 2, it is cast in shell 1, and the sound insulating layer 22 that there are two symmetrically arranged half voussoirs 21 and be arranged between two and half voussoirs 21, the end face 211 of half voussoir 21 is inclined plane, and end face 211 and intersection below and end face 211 and above 212 intersection between angle α be 5 ° ~ 50 °, the angle β between the intersection of the intersection of end face 211 and lateral surface 213 and bottom surface and lateral surface 213 is for being 5 ° ~ 49 °;

Two piezoelectric chips 3, it is attached on the end face 211 of half corresponding voussoir 21 respectively, and piezoelectric chip 3 is connected with corresponding joint 11 respectively by lead-in wire, and piezoelectric chip 3 is connected with shell 1 respectively by ground wire.

In order to be conducive to being coupled to the flaw detection of pore longitudinal direction, reaching the requirement of face contact, reducing acoustical energy losses, reduce clutter, improve flaw detection sensitivity, the bottom surface of voussoir 2 is match and the curved-surface structure of outwardly convex with pore inwall radian.

In order to be conducive to being coupled to the flaw detection of pore transverse direction, reaching the requirement of face contact, reducing acoustical energy losses, reduce clutter, improve flaw detection sensitivity, the lateral surface of voussoir 2 is match and the curved-surface structure of outwardly convex with pore inwall radian.

Piezoelectric chip 3 is made up of piezoceramic material, and adopt PT-9 piezoelectric patches, piezoelectric ceramics has the characteristic of high damping, burst pulse.

Operation principle of the present utility model is as follows:

This ultrasonic probe is stretched in pore, one and half voussoirs 21 pass into alternating voltage by joint 11, through coupling firing ultrasonic wave, enter tube wall, if there is shrinkage cavity in tube wall inside, wearing and tearing, crackle and arbitrary defect in being mingled with, ultrasonic wave finds that defect causes ultrasonic vibration, wherein a part returns along former road, because ultrasonic vibration is mechanical oscillation, the piezoelectric chip 3 on another half voussoir 21 will be caused to vibrate, produce voltage, this half voussoir 21 receives ultrasonic wave, below voussoir 2, ultrasonic wave forms rhombus confluence, so just describe tube wall inside to there is shrinkage cavity or wearing and tearing or crackle or the defect such as to be mingled with, the utility model passes through the position of end face 211 relative to bottom surface of restriction half voussoir 21, change its incidence angle β and inclined angle alpha, thus reduce blind area on it, reach and be convenient to the object that internal diameter is the carrying out flaw detection of the pipe with small pipe diameter pore inside of Φ 5 ~ 16mm.

Certainly, this ultrasonic probe is applicable to the carrying out flaw detection of the pore of internal diameter >=18mm too, and tube material can be metal material also can be that nonmetallic materials all can detect,

Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model solves are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. the ultrasonic probe for detecting in pore, is characterized in that, it comprises:

Shell (1), is provided with two joints (11);

Voussoir (2), it is cast in shell (1), and the sound insulating layer (22) that there are two symmetrically arranged half voussoirs (21) and be arranged between two and half voussoirs (21), the end face (211) of half voussoir (21) is inclined plane, and the angle α between the intersection of end face (211) and intersection below and end face (211) and above (212) is 5 ° ~ 50 °, and the angle β between the intersection of the intersection of end face (211) and lateral surface (213) and bottom surface and lateral surface (213) is for being 5 ° ~ 49 °;

Two piezoelectric chips (3), it is attached on the end face (211) of corresponding half voussoir (21) respectively, piezoelectric chip (3) is connected with corresponding joint (11) respectively by lead-in wire, and piezoelectric chip (3) is connected with shell (1) respectively by ground wire;

The bottom surface of described voussoir (2) is match and the curved-surface structure of outwardly convex with pore inwall radian.

2. the ultrasonic probe for detecting in pore according to claim 1, is characterized in that: the lateral surface of described voussoir (2) is match and the curved-surface structure of outwardly convex with pore inwall radian.

3. the ultrasonic probe for detecting in pore according to claim 1 and 2, is characterized in that: described piezoelectric chip (3) is made up of piezoceramic material.