CN203232004U - Small-angle longitudinal wave angle probe for ultrasonic inspection of power plant bearing - Google Patents
Small-angle longitudinal wave angle probe for ultrasonic inspection of power plant bearing Download PDFInfo
- Publication number
- CN203232004U CN203232004U CN 201320204091 CN201320204091U CN203232004U CN 203232004 U CN203232004 U CN 203232004U CN 201320204091 CN201320204091 CN 201320204091 CN 201320204091 U CN201320204091 U CN 201320204091U CN 203232004 U CN203232004 U CN 203232004U
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- Prior art keywords
- metal shell
- angle
- longitudinal wave
- small
- cable
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- Expired - Fee Related
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- 239000000523 sample Substances 0.000 title claims abstract description 15
- 238000007689 inspection Methods 0.000 title abstract 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract 6
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The utility model relates to a small-angle longitudinal wave angle probe for ultrasonic inspection of a power plant bearing. The small-angle longitudinal wave angle probe comprises a columnar metal shell, a shaft, a cable, a piezoelectric crystal plate, a tapered wedge and a sound absorption material, wherein the upper part of the columnar metal shell is opening and the lower part of the columnar metal shell is sealed; the shaft is fixedly mounted in the metal shell; the cable longitudinally penetrates through the sealed space of the metal shell, one end of the cable is arranged at a connector in the opening of the metal shell and the other end of the cable is connected with a connector end in the sealed space of the metal shell; the piezoelectric crystal plate is connected with the other end of the cable; the tapered wedge is fixedly mounted together with the piezoelectric crystal plate and located on the inner sidewall of the sealed space of the metal shell; the sound absorption material is filled in the sealed space at the upper part of the tapered wedge. Creatively, for the small-angle longitudinal wave angle probe, the piezoelectric crystal plate is a huge thin film with the size of 14mm (length)*10mm (width)*0.8mm (thickness), the piezoelectric crystal plate is made of lead metaniobate, and the tapered wedge plane fixedly mounted with the piezoelectric crystal plate and the horizontal plane form an included angle of 6.5 degrees. The small-angle longitudinal wave angle probe can perform disassembly-free ultrasonic inspection on the parts of the power plant bearing type, thus, lot of labor cost and time cost of the inspection work are saved, and the small-angle longitudinal wave angle probe has great market promotion value.
Description
Technical field
The utility model belongs to power equipment and makes processing technique field, especially a kind of power plant bearing Ultrasonic Detection small angle longitudinal wave angle probe.
Background technology
The load-bearing axle of power generator, steam turbine in use not only bears the gravity effect, and bears torsion, is easy to generate transversal crack vertically, so need regularly to carrying out Ultrasonic Detection at the labour generator bearing.
Be limited to current checkout equipment and process conditions, Non-Destructive Testing to power plant's bearing is generally carried out after dismounting, make testing expend manpower and be difficult to finish in man-hour, so research and design power plant's bearing class part and exempt to dismantle non-destructive detecting device and become very important.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of power plant bearing Ultrasonic Detection small angle longitudinal wave angle probe is provided.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of power plant bearing Ultrasonic Detection small angle longitudinal wave angle probe, comprise and have upper opening, the cylindrical metal shell that the bottom is airtight, be installed in the metal shell axis, the vertical metal shell confined space of wearing, one end places the joint in the metal shell opening, one end connects the cable of metal shell confined space nipple tip, the piezoelectric chip of the stube cable other end, install with piezoelectric chip, and be installed in the wedge on the metal shell confined space madial wall and be filled in acoustic absorbant in the wedge top seal space, innovation of the present utility model is: that described piezoelectric chip selects for use lead meta-columbute to make is long * wide * thickly be the huge thin slice of 14mm * 10mm * 0.8mm, and the wedge plane that this piezoelectric chip installs becomes 6.5 ° angle with surface level.
Advantage of the present utility model and good effect are:
1, the utility model can exempt to dismantle Ultrasonic Detection to power plant's bearing class part, makes testing save a large amount of labour costss and time cost.
2, the utility model is rational in infrastructure, and is easy to use, ensures the Ultrasonic NDT quality, has great market popularization value.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of power plant bearing Ultrasonic Detection small angle longitudinal wave angle probe, as shown in Figure 1, comprise and have upper opening, the cylindrical metal shell 2 that the bottom is airtight, be installed in the metal shell axis, the vertical metal shell confined space of wearing, one end places the joint 1 in the metal shell opening, one end connects the cable 3 of metal shell confined space nipple tip, the piezoelectric chip 5 of the stube cable other end, install with piezoelectric chip, and be installed in the wedge 6 on the metal shell confined space madial wall and be filled in acoustic absorbant 4 in the wedge top seal space, innovation of the present utility model is, described piezoelectric chip selects for use lead meta-columbute to make huge thin slice, the size of this huge thin slice is long * wide * thick be 14mm * 10mm * 0.8mm, hyperacoustic centre frequency that this piezoelectric chip is excited by electric pulse and produces is 2.5MHZ, and the wedge plane that the piezoelectric chip of this rectangular tab installs becomes 6.5 ° angle with surface level.
Ultimate principle of the present utility model is
For effectively realizing electroacoustic transduction, piezoelectric chip is made rectangular tab, the two sides need apply silver layer as electrode, so that the voltage on the wafer can evenly distribute, it is the piezoelectric chip material that this piezoelectric chip is selected lead meta-columbute for use, consider the shear wave composition of minimizing incident wave and the influence of diameter of part, the incident angle of longitudinal wave probe piezoelectric chip is designed to 6.5 °, hyperacoustic centre frequency that the probe piezoelectric chip is excited by electric pulse and produces is 2.5MHZ, and piezoelectric chip is of a size of length * wide * thick 14mm * 10mm * 0.8mm of being.
In order to make the ultrasound wave oblique incidence to detection faces, add in the wafer front and load onto voussoir.Wedge makes the piezoelectric chip of probe and surface of the work form 6.5 ° of angles, with the ultrasound wave that guarantees the piezoelectric chip emission by the oblique interface of setting that is mapped to wedge and workpiece, pitch angle, thereby can produce required waveform transformation at the interface, be convenient in workpiece, form the acoustic beam of specific waveforms and angle.Described wedge is made with organic glass, wear-resisting easy processing.
Claims (1)
1. power plant's bearing Ultrasonic Detection small angle longitudinal wave angle probe, comprise and have upper opening, the cylindrical metal shell that the bottom is airtight, be installed in the metal shell axis, the vertical metal shell confined space of wearing, one end places the joint in the metal shell opening, one end connects the cable of metal shell confined space nipple tip, the piezoelectric chip of the stube cable other end, install with piezoelectric chip, and be installed in the wedge on the metal shell confined space madial wall and be filled in acoustic absorbant in the wedge top seal space, it is characterized in that: that described piezoelectric chip selects for use lead meta-columbute to make is long * wide * thickly be the huge thin slice of 14mm * 10mm * 0.8mm, the wedge plane that this piezoelectric chip installs becomes 6.5 ° angle with surface level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204091 CN203232004U (en) | 2013-04-22 | 2013-04-22 | Small-angle longitudinal wave angle probe for ultrasonic inspection of power plant bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204091 CN203232004U (en) | 2013-04-22 | 2013-04-22 | Small-angle longitudinal wave angle probe for ultrasonic inspection of power plant bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232004U true CN203232004U (en) | 2013-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204091 Expired - Fee Related CN203232004U (en) | 2013-04-22 | 2013-04-22 | Small-angle longitudinal wave angle probe for ultrasonic inspection of power plant bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990988A (en) * | 2015-07-15 | 2015-10-21 | 常州市常超电子研究所有限公司 | Anti-interference ultrasonic probe |
| CN109342576A (en) * | 2018-11-12 | 2019-02-15 | 北京双河理声自动化检测技术有限公司 | One kind is for train axle transversal wave ultrasonic flaw detection short axle probe |
-
2013
- 2013-04-22 CN CN 201320204091 patent/CN203232004U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990988A (en) * | 2015-07-15 | 2015-10-21 | 常州市常超电子研究所有限公司 | Anti-interference ultrasonic probe |
| CN109342576A (en) * | 2018-11-12 | 2019-02-15 | 北京双河理声自动化检测技术有限公司 | One kind is for train axle transversal wave ultrasonic flaw detection short axle probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20190422 |