CN210514186U - Ultrasonic oblique probe capable of adjusting incident angle - Google Patents
Ultrasonic oblique probe capable of adjusting incident angle Download PDFInfo
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- CN210514186U CN210514186U CN201921128454.1U CN201921128454U CN210514186U CN 210514186 U CN210514186 U CN 210514186U CN 201921128454 U CN201921128454 U CN 201921128454U CN 210514186 U CN210514186 U CN 210514186U
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Abstract
The utility model discloses an ultrasonic angle probe capable of adjusting incident angle, which comprises an angle switching rod, a semicircular track and a sound wave emission assembly; the sound wave emission assembly is arranged in the track, glycerin is filled in the track, the bottom of the track is provided with a protective film, the outer side of the rest part is wrapped with a sound absorption material, the top of the track is provided with a track disconnection part, one end of the angle switching rod penetrates through the track disconnection part to extend into the track and is connected with the outer side of the sound wave emission assembly, and the sound wave emission assembly is driven to rotate in the track by being shifted left and right through the angle switching rod; the sound wave emission assembly is connected with the ultrasonic instrument through a cable and an external connector. The utility model discloses can realize angle freedom adjustment (the scope accessible changes the adjustment of probe external parameter) in the scope to reduce nondestructive test person's work load, improve the testing effect, practice thrift the cost etc..
Description
Technical Field
The utility model belongs to the technical field of the ultrasonic testing, concretely relates to ultrasonic wave oblique probe of adjustable incident angle.
Background
The industries of energy, chemical engineering, aerospace and the like in China can be developed stably and efficiently. Besides the continuous progress of the education cause of China, the method also benefits from the continuous improvement of the nondestructive testing technology. The nondestructive testing is a method for inspecting and testing the structure, the property, the state and the type, the property, the quantity, the shape, the position, the size, the distribution and the change of the defects inside and on the surface of a test piece by taking a physical or chemical method as a means and by means of modern technology and equipment and by utilizing the change of the reaction of heat, sound, light, electricity, magnetism and the like caused by the abnormal structure or the existence of the defects of a material on the premise of not damaging or not influencing the service performance of the tested object and not damaging the internal tissue of the tested object. The ultrasonic detection has accurate defect positioning and higher detectable rate of area type defects; the sensitivity is high, and the defect of small internal size of a test piece can be detected; and the detection cost is low, the speed is high, the equipment is portable, the device is harmless to human bodies and environment, the field use is convenient, and the like, and the device is deeply favored by the nondestructive detection industry.
But probes with different angles (K values) are selected according to workpieces with different specifications and different materials during detection; and after the probe is used for a long time, the probe is worn, so that the angle (K value) of the probe has a larger error than a factory preset value. Meanwhile, most probes on the market are fixed angles (such as 45 degrees, 60 degrees (K1, K2) and the like). In daily work, defect angle cunning, work piece structure is complicated, and the condition such as leak hunting, erroneous judgement take place occasionally because of reasons such as probe angle is adjustable or different angle probe preparation are not abundant. And the method poses serious threats to the industrial safety of China and the personal and property safety of the public.
Therefore, a novel ultrasonic probe which can freely adjust the angle in the range and has smaller cost difference than a common probe needs to be researched urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide an ultrasonic angle probe with adjustable incident angle.
The utility model discloses a following technical scheme realizes:
an ultrasonic angle probe capable of adjusting an incident angle comprises an angle switching rod, a semicircular track and a sound wave emission assembly; wherein the content of the first and second substances,
the sound wave emission assembly is arranged in the track, glycerin is filled in the track, the bottom of the track is provided with a protective film, the outer side of the rest part is wrapped with a sound absorption material, the top of the track is provided with a track disconnection part, one end of the angle switching rod penetrates through the track disconnection part to extend into the track and is connected with the outer side of the sound wave emission assembly, and the sound wave emission assembly is driven to rotate in the track by shifting the angle switching rod left and right; the sound wave emission assembly is connected with the ultrasonic instrument through a cable and an external connector.
The utility model discloses further improvement lies in, and the draw-in groove has still been seted up at orbital top, and after the suitable angle was stirred about the angle switching pole to can fix through stirring angle switching pole card income corresponding draw-in groove.
The utility model discloses further improvement lies in, still includes rotary device, and the one end that the angle switching pole stretched into in the track is passed through rotary device and is connected with the sound wave transmission assembly.
The utility model discloses further improvement lies in, sound wave transmission assembly is including the casing that is half circular, sets up the piezoelectric wafer in the casing to and the circumference outside the transmission end is got rid of at piezoelectric wafer to the parcel, and piezoelectric wafer passes through the cable and external connection head is connected with ultrasonic instrument.
The utility model discloses further improvement lies in, glycerine can be replaced for liquid epoxy.
The utility model discloses further improvement lies in, and this probe can adjust the incident angle of sound wave through angle switching pole to reach the effect that a probe possess multiple K value simultaneously.
The utility model discloses following profitable technological effect has:
the utility model changes the shape and layout of the piezoelectric wafer and the sound wave emission assembly; select glycerine (and other sound permeability and paste other liquid materials that the nature is good) and replace traditional probe voussoir (main material is solid organic glass), under the prerequisite of guaranteeing sound permeability and filtering (filtering clutter) nature, can change self shape along with the rotation of semicircular sound wave transmission assembly, can guarantee simultaneously and the sound wave transmission assembly fully laminates to realize the result of adjusting probe angle (K value) in the scope.
To sum up, the utility model discloses can realize angle freedom adjustment (the scope accessible changes the adjustment of probe external parameter) in the scope to reduce nondestructive test person's work load, improve the testing effect, practice thrift the cost etc..
Drawings
Fig. 1 is an overall front view of an ultrasonic angle probe of the present invention with adjustable incident angle;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of an acoustic emission assembly;
fig. 4 is a schematic structural view of the angle-switching lever and the locking groove, in which fig. 4(a) is a partially enlarged view of fig. 4(b), and fig. 4(b) is a right-side sectional view of the probe;
FIG. 5 is a front view of the track;
FIG. 6 is a top view of the track;
fig. 7 is a front view of the angle switching lever;
fig. 8 is a side view of the angle switching lever;
FIG. 9 is a front view of the rotating device;
fig. 10 is a side view of the rotating device.
Description of reference numerals:
1-angle switching rod, 2-track, 3-sound absorption material, 4-glycerin, 5-protective film, 6-external connector, 7-cable, 8-sound wave emission assembly, 9-damping block, 10-piezoelectric wafer, 11-clamping groove, 12-track break and 13-rotating device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 10, the utility model provides an adjustable incident angle's ultrasonic wave angle probe, including angle switching pole 1, track 2, sound absorbing material 3, glycerine 4, protection film 5, external connection head 6, cable 7, sound wave emission assembly 8, damping piece 9, piezoelectric wafer 10 and rotary device 13.
As shown in fig. 1 and 4, the angle switching rod 1 is shifted left and right to drive the sound wave emitting assembly 8 to rotate in the track 2; with the rotation of the sound wave emission assembly 8, the extrusion glycerol 4 deforms, and the glycerol 4 and the sound wave emission assembly 8 are coupled. The angle switching rod 1 is shifted left and right to drive the sound wave emission assembly 8 to rotate at the same angular speed, and after the sound wave emission assembly is shifted to a proper angle in the drawing 1, the sound wave emission assembly is clamped into the corresponding clamping groove 11 to be fixed by shifting the angle switching rod 1; the angle-switching lever 1 is connected to a rotating device 13, and the rotating device 13 can rotate up and down 180 degrees in a direction parallel to the paper surface. The rotating means 13 is connected to the acoustic emission assembly 8 and abuts the track 2 in the manner shown in figure 3. The angle-switching lever 1 in fig. 4 is toggled in a direction perpendicular to the paper, which is equivalent to the left-right toggling of the angle-switching lever 1 in fig. 1.
The sound absorption material 3 is used for absorbing scattered sound waves and preventing reflected noise waves from interfering the normal work of the piezoelectric wafer 10;
the glycerin 4 can be replaced by viscous liquid with good sound permeability; the area marked with glycerin 4 in the figure should be a liquid substance with excellent sound permeability, and can be coupled with the sound wave emission assembly 8, and the coupling can be always kept and the whole area can be filled with the rotation of the sound wave emission assembly 8; the utility model takes the glycerol 4 as the filler, and does not carry out relevant experiments and calculation due to the limitation of objective conditions, and if more suitable materials exist, the materials can be changed; to the different packing materials (the utility model discloses a glycerine 4) to and the material of protection film 5, calculate behind different refraction angle and the first critical angle, reachs the true incident angle of incident transverse wave.
As shown in fig. 4, the top of the rail 2 is provided with a rail break 12, which is tightly matched with the groove of the rotating device 13.
The length of the slot 11 can limit the moving range of the angle switching rod 1; the angle switching lever 1 is shifted to a desired position and can be engaged with the corresponding card slot 11 (not limited to the number of card slots 11 and the accuracy of the card slots 11 in the drawing).
The rotation of the sound wave emission assembly 8 can realize that sound waves obliquely enter the protective film 5 at different incidence angles and enter a workpiece through the coupling agent through one refraction; the sound wave emission assembly 8 is tightly attached to the track 2 and can smoothly rotate by adopting substances such as a lubricant and the like; the part of the angle switching rod 1 penetrating the track 2 is sealed to prevent the filler from seeping out, a leather wrapping device similar to a car gear rod can be used in the area to realize sealing and give filling allowance, and surplus filler can be supplemented and collected when the volume of the filling area is changed in the rotating process.
The key point of the upper strip sealing device for manufacturing the probe is that whether the probe can be normally used or not is directly influenced. The specific manufacturing method, the utility model does not provide specific requirements, and aims to realize the functions in the foregoing;
the piezoelectric wafer 10 is an energy converter that converts electrical energy and mechanical energy, and it performs this function by forward/reverse piezoelectric effect. The conversion process is as follows: the ultrasonic instrument applies a voltage to the piezoelectric wafer 10 through the cable 7. Under the effect of voltage, the piezoelectric wafer 10 has an inverse piezoelectric effect, and under the effect of the inverse piezoelectric effect, the piezoelectric wafer 10 vibrates, and the vibration generates ultrasonic waves which are emitted by using the glycerol 4 as a medium. When the sound waves are reflected back against an obstruction, mechanical pressure is applied to the piezoelectric wafer 10. The probe generates a positive piezoelectric effect, and under the action of the positive piezoelectric effect, mechanical energy is converted into electric energy to be transmitted back to an instrument.
The damping mass 9 functions to block the scattering of sound waves and to provide a stabilizing effect.
The probe front edge of this probe is substantially fixed. The specific numerical calculation method is as follows: when the sound wave emission assembly rotates to the limit position, the sound wave position of the sound wave emission assembly is fixed, and the current front edge of the probe is calculated. After rotating for a fixed angle, the current leading edge value of the probe can be calculated through a trigonometric function.
Claims (6)
1. An ultrasonic angle probe capable of adjusting an incident angle is characterized by comprising an angle switching rod (1), a semicircular track (2) and a sound wave emission assembly (8); wherein the content of the first and second substances,
the sound wave emission assembly (8) is arranged in the track (2), glycerin (9) is filled in the track (2), a protective film (5) is arranged at the bottom of the track (2), the outer side of the rest part is wrapped with the sound absorption material (3), a track breaking part (12) is formed in the top of the track (2), one end of the angle switching rod (1) penetrates through the track breaking part (12) and extends into the track (2) and is connected with the outer side of the sound wave emission assembly (8), and the sound wave emission assembly (8) is driven to rotate in the track (2) by being shifted left and right through the angle switching rod (1); the sound wave emission assembly (8) is connected with the ultrasonic instrument through a cable (7) and an external connector (6).
2. The ultrasonic angle probe capable of adjusting the incident angle according to claim 1, wherein a slot (11) is further formed at the top of the rail (2), and the angle switching rod (1) can be shifted to an appropriate angle left and right and can be clamped into the corresponding slot (11) to be fixed by shifting the angle switching rod (1).
3. An ultrasonic angle probe capable of adjusting an incident angle according to claim 1, further comprising a rotating device (13), wherein one end of the angle switching rod (1) extending into the track (2) is connected with the sound wave emitting assembly (8) through the rotating device (13).
4. The ultrasonic angle probe capable of adjusting the incident angle according to claim 1, wherein the sound wave emitting assembly (8) comprises a semicircular housing, a piezoelectric wafer (10) disposed in the housing, and a circumferential portion wrapped around the piezoelectric wafer (10) except the emitting end, wherein the piezoelectric wafer (10) is connected to the ultrasonic instrument through a cable (7) and an external connector (6).
5. An angle of incidence adjustable ultrasonic angle probe according to claim 1, wherein the glycerol (9) can be replaced by liquid epoxy.
6. The ultrasonic angle probe capable of adjusting the incident angle according to claim 1, wherein the probe can adjust the incident angle of the sound wave by the angle switching lever (1) to achieve the effect that one probe has a plurality of K values at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921128454.1U CN210514186U (en) | 2019-07-17 | 2019-07-17 | Ultrasonic oblique probe capable of adjusting incident angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921128454.1U CN210514186U (en) | 2019-07-17 | 2019-07-17 | Ultrasonic oblique probe capable of adjusting incident angle |
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| CN210514186U true CN210514186U (en) | 2020-05-12 |
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| CN201921128454.1U Active CN210514186U (en) | 2019-07-17 | 2019-07-17 | Ultrasonic oblique probe capable of adjusting incident angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286158A (en) * | 2019-07-17 | 2019-09-27 | 西安热工研究院有限公司 | A kind of Ultrasonic wave angle probe of adjustable incident angle |
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- 2019-07-17 CN CN201921128454.1U patent/CN210514186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286158A (en) * | 2019-07-17 | 2019-09-27 | 西安热工研究院有限公司 | A kind of Ultrasonic wave angle probe of adjustable incident angle |
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