CN211179660U

CN211179660U - Bolt ultrasonic detection system

Info

Publication number: CN211179660U
Application number: CN201920938121.9U
Authority: CN
Inventors: 马君鹏; 姜海波; 王永强; 高超; 李鸿泽; 王成亮; 刘贞瑶; 杨贤彪; 岳贤强; 刘叙笔
Original assignee: Jiangsu Fangtian Power Technology Co Ltd
Current assignee: Jiangsu Fangtian Power Technology Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-08-04
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a bolt ultrasonic detection system, including phased array probe and detecting instrument, the phased array probe includes a plurality of piezoelectric wafers, and is a plurality of piezoelectric wafers connect gradually and form cyclic annular detection face, wait to detect the work piece laminate in cyclic annular detection face, each piezoelectric wafer all with the detecting instrument electricity is connected. The utility model provides a bolt ultrasonic detection system examines time measuring, can realize 360 degrees covers and detects, does not have the detection blind area, and detection reliability and accuracy are high.

Description

Bolt ultrasonic detection system

Technical Field

The utility model relates to an ultrasonic detection technical field, concretely relates to bolt ultrasonic detection system.

Background

When the existing ultrasonic detector carries out ultrasonic detection, a detection blind area usually exists. Especially, when a cylindrical workpiece, such as a bolt, is detected, a detection blind area exists, and 360-degree detection coverage in the circumferential direction cannot be realized, so that the reliability of a detection result is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a bolt ultrasonic detection system, there is the technical problem who detects the blind area when solving among the prior art ultrasonic detection.

In order to achieve the technical purpose, the technical scheme of the utility model provide a bolt ultrasonic detection system, including phased array probe and detecting instrument, the phased array probe includes a plurality of piezoelectric wafers, and is a plurality of piezoelectric wafers connect gradually and form cyclic annular detection face, wait to detect the work piece laminate in cyclic annular detection face, each piezoelectric wafer all with the detecting instrument electricity is connected.

Compared with the prior art, the beneficial effects of the utility model include: the piezoelectric wafers are connected to form an annular shape, so that when ultrasonic detection is carried out, 360-degree dead-angle-free coverage detection in the circumferential direction of a workpiece to be detected can be realized, a detection blind area is eliminated, and the detection accuracy is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a piezoelectric wafer of an ultrasonic bolt inspection system provided by the present invention;

fig. 2 is a schematic structural diagram of an embodiment of an ultrasonic bolt inspection system provided by the present invention;

fig. 3 is an installation schematic view of an embodiment of a support housing of the ultrasonic bolt inspection system provided by the present invention;

fig. 4 is an installation diagram of an embodiment of a package housing of an ultrasonic bolt inspection system according to the present invention.

Reference numerals:

1. phased array probe, 11, piezoelectric wafer, 12, support shell, 121, barrel, 122, base, 13, packaging shell, 131, accommodation space, 132, cable outlet hole, 14, screw, 2, detecting instrument, 100 and bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1 and 2, embodiment 1 of the utility model provides a bolt ultrasonic detection system, hereinafter be referred to as detecting system for short, including phased array probe 1 and detecting instrument 2, phased array probe 1 includes a plurality of piezoelectric wafers 11, and is a plurality of piezoelectric wafers 11 connect gradually and form cyclic annular detection face, wait to detect the work piece laminate in cyclic annular detection face, each piezoelectric wafers 11 all with detecting instrument 2 electricity is connected.

Specifically, the detection instrument 2 is configured to drive the phased array probe 1 to emit a guided wave signal;

the phased array probe 1 is used for acquiring defect echo signals;

the detection instrument 2 is further configured to acquire an a-scan image and a B-scan image according to the defect echo signal, and display the a-scan image and the B-scan image.

Phased array probe 1 produces guided wave signal at the cylinder work piece inside and carries out the formation of image and detect, and the cylinder guided wave signal can produce the defect echo if meet internal defect in the propagation, is received defect echo signal by phased array probe 1, will transmit for detecting instrument 2, and detecting instrument 2 forms A and sweeps the image and B sweeps the image to show. The acquisition that image and B were swept to A is swept through prior art realization can, the utility model discloses do not relate to the improvement to this, no longer give unnecessary details here.

The embodiment of the utility model provides a bolt ultrasonic detection system sets up annular phased array probe 1, when examining, can arouse arbitrary a plurality of consecutive adjacent piezocrystallite pieces 11 to realize 360 degrees covers and detect, do not have the detection blind area, it is all higher to detect reliability and accuracy. And is particularly useful for cylindrical workpieces such as bolt 100. the cylindrical workpiece illustrated in fig. 2 is bolt 100.

Specifically, a comparison analysis was performed by taking a ring-shaped phased array probe composed of 64 piezoelectric wafers as an example. 64 piezoelectric wafers of the phased array probe are sequentially numbered as No.1-No.64, and the number of sub-aperture array elements is 8. Comparative analysis was performed as follows:

in the prior art, the excitation mode of the non-annular probe is that after the piezoelectric wafers No.1-No.8 start to excite ultrasonic waves, the piezoelectric wafers No.2-No.9 are excited as a group, then the piezoelectric wafers No.3-No.10 are excited as a group, the piezoelectric wafers No.3-No.10 are sequentially excited as a group, and the piezoelectric wafers No.57-No.64 are finally excited as a group. Then, the piezoelectric wafers No.1-No.8 are excited again in sequence. By analogy, ultrasonic signals are circularly transmitted in the circumferential direction, however, the excitation mode cannot span from No.64 piezoelectric wafer to No.1 piezoelectric wafer, and a certain detection blind area is formed in the direction.

The utility model provides a detecting system can stride across No.64-No.1 piezoelectric wafer and arouse the ultrasonic beam, because piezoelectric wafer connects gradually and has formed cyclic annular, consequently the utility model provides a detecting system still is equipped with No.58-No.1 crystal piezoelectric wafer and arouses for a set of on current detecting system's basis, and No.59-No.2 piezoelectric wafer arouses for a set of, and No.64-No.7 piezoelectric wafer arouses for a set of. After the No.64-No.7 piezoelectric wafers are excited, the No.1-No.8 piezoelectric wafers are excited again in sequence, and the process is circulated until a stop signal is received. The utility model discloses can reach 360 covers of circumferencial direction, eliminate the detection blind area, make the testing result more reliable.

Preferably, as shown in fig. 3, the phased array probe further includes a support housing 12, the support housing 12 includes a cylinder 121 and a base 122, each piezoelectric wafer 11 is bonded to one end of the cylinder 121, and the other end of the cylinder 121 is connected to the base 122.

The supporting housing 12 is used for adhering the piezoelectric wafer 11 and supporting and fixing the piezoelectric wafer 11, and the base 122 and the piezoelectric wafer 11 are respectively arranged at two ends of the cylinder 121 to play a role in balancing. The base 122 is preferably provided in the same size as the piezoelectric wafer 11.

Preferably, as shown in fig. 3, the cylinder 121 is a hollow cylinder 121.

The middle of the cylinder body 121 is hollow, so that the overall weight of the phased array probe is reduced, and the phased array probe is convenient to carry and take.

Preferably, as shown in fig. 4, the phased array probe further includes a package housing 13, the support housing 12 and the piezoelectric wafer 11 are mounted in the package housing 13, a receiving space 131 for placing a cable is formed between the package housing 13 and the cylinder 121, and a cable outlet 132 is formed in the package housing 13.

The packaging shell 13 is used for packaging, so that the whole structure of the phased array probe is complete, and the phased array probe has the functions of water resistance, oil resistance and convenience for being held by hands. Specifically, the package case 13 is connected to the support case 12 by screws 14, thereby fastening the piezoelectric wafer 11. The piezoelectric wafer 11 and the detecting instrument 2 are electrically connected through a cable, the cable is stored in the annular accommodating space 131 of the packaging shell 13 and the supporting shell 12, one end of the cable is electrically connected with the piezoelectric wafer 11, and the other end of the cable is twisted into a strand which extends out of the cable outlet hole 132 and is electrically connected with the detecting instrument 2. Preferably, the detection apparatus 2 is a computer.

It should be noted that the utility model provides a bolt ultrasonic detection system is particularly useful for the detection of cylinder work piece, but not only is applicable to the detection of cylinder work piece, to the work piece of other shapes, can realize detecting equally, only need with phased array probe install on the work piece that awaits measuring can.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The ultrasonic bolt detection system is characterized by comprising a phased array probe and a detection instrument, wherein the phased array probe comprises a plurality of piezoelectric wafers, the piezoelectric wafers are sequentially connected to form an annular detection surface, a workpiece to be detected is attached to the annular detection surface, and each piezoelectric wafer is electrically connected with the detection instrument;

the phased array probe also comprises a support shell, the support shell comprises a cylinder and a base, each piezoelectric wafer is respectively bonded with one end of the cylinder, and the other end of the cylinder is connected with the base;

the cylinder body is a hollow cylinder body;

the phased array probe further comprises a packaging shell, the supporting shell and the piezoelectric wafer are mounted in the packaging shell, a containing space for placing a cable is formed between the packaging shell and the cylinder, and a cable outlet hole is formed in the packaging shell.

2. The ultrasonic bolt detection system of claim 1, wherein the detection instrument is a computer.