Wedge block probe with adjustable angle

Abstract

The utility model discloses an angle-adjustable wedge block probe, which comprises a wedge block assembly, an ultrasonic probe core assembly, a connector and a rotatable device, the ultrasonic probe core assembly is arranged on the wedge block assembly, the ultrasonic probe core assembly is connected with the connector, the rotatable device is arranged on the wedge block assembly, and the connector is externally connected with flaw detection equipment. By adopting the technical scheme, the practical and efficient wedge block probe with the adjustable angle is manufactured. According to the utility model, the probes with the same size and the same frequency can be used for detecting different angles of 0-90 degrees, the probes with various angles do not need to be continuously replaced, real-time and accurate effects are achieved, manpower is saved, the cost is reduced, and the quality is improved, so that the purpose of comprehensively detecting internal defects is easily achieved, and accurate troubleshooting, effectiveness and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the field of ultrasonic nondestructive testing, in particular to a wedge probe with adjustable angle. Background Art

[0002] Pipes are made of steel ingots or solid tubes through perforation to form rough tubes, and then hot rolled, cold rolled or cold drawn. Pipes play an important role in my country's steel pipe industry. Seamless steel pipes are divided into two categories: hot rolled and cold rolled (drawn) seamless steel pipes. Hot rolled seamless steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes. In addition to general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes, cold rolled seamless steel pipes also include carbon thin-walled steel pipes, alloy thin-walled steel pipes, stainless thin-walled steel pipes, and special-shaped steel pipes.

[0003] The outer diameter of hot-rolled seamless pipe is generally greater than 32mm, with a wall thickness of 2.5-75mm. The outer diameter of cold-rolled seamless steel pipe can reach 6mm, with a wall thickness of 0.25mm. The outer diameter of the pipe can reach 5mm, with a wall thickness of less than 0.25mm. The dimensional accuracy of cold rolling is higher than that of hot rolling. Pipes are widely used, such as boilers, geological drilling, petrochemicals, shipbuilding, pharmaceuticals, power generation, nuclear waste, hydraulic and pneumatic cylinders, fluid transportation, aerospace, industry, medicine, agriculture and other fields.

[0004] The reliability of pipeline quality directly affects its safe lifespan. During the manufacturing process, defects such as cracks and bubbles inside the thin wall of the pipeline, internal defects in the butt weld, internal cracks after a period of use, and rust and thinning of the pipe wall all need to be detected in advance to eliminate hidden dangers in a timely manner.

[0005] At present, due to problems such as welding position and inspection efficiency, the application of X-ray flaw detection always has many disadvantages. Practice has proved that the use of ultrasonic probes for pipeline weld inspection has a high defect detection rate and does not have environmental protection issues like radiography, which is efficient and cost-effective.

[0006] The general ultrasonic probes on the market can be customized with probes of the same frequency, size and different angles to meet actual detection needs. There are relatively few models. If there are multiple pipes that need to be detected, it is necessary to customize many probes of the same frequency, size and different angles, which is inefficient and inconvenient to use. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a practical and efficient wedge probe with adjustable angle.

[0008] The utility model discloses an angle-adjustable wedge probe, comprising a wedge assembly, an ultrasonic probe core assembly, a connector and a rotatable device. The wedge assembly is provided with an ultrasonic probe core assembly, the ultrasonic probe core assembly is connected to the connector, the wedge assembly is provided with a rotatable device, and the connector is externally connected to a flaw detection device.

[0009] In the above scheme, the wedge block assembly includes a wedge block body and sound-absorbing glue, and the wedge block body is provided with sound-absorbing glue.

[0010] In the above scheme, the rotatable device includes a rotating guide column, a fastening screw and a force spring, the rotating guide column is provided with a fastening screw, the fastening screw is provided with a force spring, and the rotating guide column is provided on the wedge block body.

[0011] In the above scheme, the core component of the ultrasonic probe includes a chip seat, a shell, a backing, a matching layer and a piezoelectric chip. The chip seat is provided with a shell, the shell is provided with a backing, the chip seat is provided with a matching layer, the matching layer is provided with a piezoelectric chip, and the piezoelectric chip is connected to the connector after being bonded to the backing.

[0012] In the above solution, the piezoelectric chip is a ceramic piezoelectric chip.

[0013] In the above solution, the shell is made of a material that is not easy to rust or corrode.

[0014] In the above solution, the shell is a stainless steel 304 shell.

[0015] In the above solution, the shell is a stainless steel 316 shell.

[0016] In the above solution, the shell is a copper-nickel-plated shell.

[0017] The advantages and beneficial effects of the utility model are: the utility model provides a practical and efficient wedge probe with adjustable angle. It can realize the detection of different angles of 0-90° with probes of the same size and frequency, without the need to constantly replace probes of various angles, in real time and accurately, saving manpower, reducing costs, and improving quality, thereby easily achieving the purpose of all-round detection of internal defects, accurate investigation, and effective and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the wedge assembly and the rotatable device;

[0021] Figure 3 It is a structural schematic diagram of the core component of the ultrasonic probe;

[0022] Figure 4 This is a reference diagram for the usage status.

[0023] In the figure: 1, wedge assembly 2, ultrasonic probe core assembly 3, connector 4, rotatable device 11, wedge body 12, sound absorbing glue 41, rotating guide column 42, fastening screw

[0024] 42, force spring 21, wafer seat 22, housing 23, backing

[0025] 24, matching layer 25, piezoelectric chip 5, workpiece to be tested DETAILED DESCRIPTION

[0026] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] like Figure 1 As shown, the utility model is an angle-adjustable wedge probe, comprising a wedge assembly 1, an ultrasonic probe core assembly 2, a connector 3 and a rotatable device 4. The ultrasonic probe core assembly 2 is provided on the wedge assembly 1, the ultrasonic probe core assembly 2 is connected to the connector 3, the rotatable device 4 is provided on the wedge assembly 1, and the connector 3 is externally connected to a flaw detection device.

[0028] like Figure 2 As shown, the wedge assembly 1 includes a wedge body 11 and a sound-absorbing adhesive 12 , and the wedge body 11 is provided with the sound-absorbing adhesive 12 .

[0029] The rotatable device 4 includes a rotating guide column 41, a fastening screw 42 and a force spring 43. The rotating guide column 41 is provided with a fastening screw 42, and the fastening screw 42 is provided with a force spring 43. The rotating guide column 41 is arranged on the wedge block body 11. The ultrasonic probe core component 2 can be manually rotated according to different needs, and the angle can be adjusted at will. The force of the force spring 43 is adjusted by the fastening screw 42, so that the ultrasonic probe core component 2 and the wedge block component 1 are coupled through the coupling agent, and at the same time, the position of the ultrasonic probe core component 2 is fixed. The operation is convenient, simple, easy, practical and efficient.

[0030] like Figure 3As shown, the ultrasonic probe core component 2 includes a wafer seat 21, a shell 22, a backing 23, a matching layer 24 and a piezoelectric wafer 25. The shell 22 is provided on the wafer seat 21, the backing 23 is provided in the shell 22, the matching layer 24 is provided on the wafer seat 21, and the piezoelectric wafer 25 is provided on the matching layer 24. The piezoelectric wafer 25 is bonded to the backing 23 and connected to the connector 3. Through instrument imaging, the defect position can be accurately located, and the shape, size, position, orientation, distribution and contents of the defect can be determined.

[0031] The piezoelectric chip 25 is a ceramic piezoelectric chip, which can be various chips of different sizes and chips of various frequency bands. The shell 22 is a material that is not easy to rust and corrode. Specifically, the shell 22 is one of a stainless steel 304 shell, a stainless steel 316 shell, and a copper-nickel-plated shell.

[0032] like Figure 4 As shown, when in use, the wedge probe is placed on the workpiece 5 to be inspected, and the signal emitted by the ultrasonic probe core component 2 is transmitted to the workpiece through the wedge component 1. At the same time, the signal of the reflected wave is transmitted to the flaw detector through the connector 3 connecting the cable. According to the signal characteristics of the reflected wave, the scan waveform image is displayed on the screen in real time, showing the shape, size, orientation, distribution and other information of internal cracks, holes, bubbles and other defects.

[0033] By integrating the adjustable device with the force spring 43, the fastening screw 42 and the rotating guide column 41, the wedge block assembly 1 and the ultrasonic probe core assembly 2 are integrated, so that the detection of defects at different positions at 0-90° can be easily realized. The wedge block assembly 1 and the ultrasonic probe core assembly 2 are coupled with a coupling agent to make the interface gapless, and the internal non-destructive detection is implemented by using the ultrasonic echo principle. The ultrasonic imaging system can accurately locate the defect position, determine the shape, size, position, orientation, distribution and contents of the defect, and unqualified points can be marked in real time and accurately checked, which is effective and reliable.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wedge probe with adjustable angle, characterized in that: It comprises a wedge block assembly, an ultrasonic probe core assembly, a connector and a rotatable device. The wedge block assembly is provided with an ultrasonic probe core assembly, the ultrasonic probe core assembly is connected to the connector, the wedge block assembly is provided with a rotatable device, and the connector is externally connected to a flaw detection device.

2. The angle-adjustable wedge probe according to claim 1, characterized in that: The wedge block assembly comprises a wedge block body and sound-absorbing glue, and the wedge block body is provided with sound-absorbing glue.

3. The angle-adjustable wedge probe according to claim 2, characterized in that: The rotatable device comprises a rotating guide column, a fastening screw and a force spring. The rotating guide column is provided with a fastening screw, the fastening screw is provided with a force spring, and the rotating guide column is provided on the wedge block body.

4. The angle-adjustable wedge probe according to claim 1, characterized in that: The ultrasonic probe core component includes a wafer seat, a shell, a backing, a matching layer and a piezoelectric wafer. The wafer seat is provided with a shell, a backing is provided in the shell, the wafer seat is provided with a matching layer, the matching layer is provided with a piezoelectric wafer, and the piezoelectric wafer is connected to the connector after being bonded to the backing.

5. The angle-adjustable wedge probe according to claim 4, characterized in that: The piezoelectric chip is a ceramic piezoelectric chip.

6. The angle-adjustable wedge probe according to claim 4, characterized in that: The shell is made of a material that is not prone to rust or corrosion.

7. The angle-adjustable wedge probe according to claim 6, characterized in that: The shell is a stainless steel 304 shell.

8. The angle-adjustable wedge probe according to claim 6, characterized in that: The shell is a stainless steel 316 shell.

9. The angle-adjustable wedge probe according to claim 6, characterized in that: The shell is a nickel-plated copper shell.

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