CN116140173A - High-temperature-resistant piezoelectric three-lamination mounting and fixing structure and transducer comprising same - Google Patents
High-temperature-resistant piezoelectric three-lamination mounting and fixing structure and transducer comprising same Download PDFInfo
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- CN116140173A CN116140173A CN202211579385.2A CN202211579385A CN116140173A CN 116140173 A CN116140173 A CN 116140173A CN 202211579385 A CN202211579385 A CN 202211579385A CN 116140173 A CN116140173 A CN 116140173A
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- positioning
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- lamination
- fixing structure
- transducer
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- 238000003475 lamination Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of energy converters, in particular to a high-temperature-resistant piezoelectric three-lamination mounting and fixing structure and an energy converter comprising the structure, which comprises the following components: the device comprises a pressing plate, a backing plate, three laminations, a positioning groove and a positioning antenna; the metal base plate of three lamination both ends have vertically seted up a plurality of the constant head tank, the one end of clamp plate is vertically equipped with a plurality of the location feeler, the location feeler with the constant head tank grafting links to each other, just metal base plate with still include to compress tightly between the clamp plate the backing plate. The connecting structure of the positioning groove between the pressing plate and the metal substrate can effectively reduce the stress on the three laminations when the transducer framework deforms at high temperature, and has the effects of prolonging the service life of the acoustic logging dipole transducer under the high-temperature working environment and improving the high-temperature-resistant grade.
Description
Technical Field
The invention relates to the technical field of transducers, in particular to a high-temperature-resistant piezoelectric three-lamination mounting and fixing structure and a transducer comprising the same.
Background
As shown in fig. 1, 2 and 3, the sonic logging dipole transducer mainly comprises three laminations (formed by bonding piezoelectric ceramics and metals through adhesives) and a framework. The two ends of the three laminations are fixed on the framework by bolts, when the deformation generated by heating of the framework of the transducer is larger than the deformation quantity of the three laminations, the three laminations can have larger stress concentration, piezoelectric ceramics on the three laminations can be peeled off or damaged from the metal substrate when the high-temperature impact is repeatedly applied for a long time, and the service life of the transducer can be reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a high-temperature-resistant piezoelectric three-lamination mounting and fixing structure, a transducer comprising the structure and a structure thereof.
The invention is realized by the following technical scheme:
a high temperature resistant piezoelectric three-lamination mounting and fixing structure, comprising: the device comprises a pressing plate, a backing plate, three laminations, a positioning groove and a positioning antenna; the metal base plate of three lamination both ends have vertically seted up a plurality of the constant head tank, the one end of clamp plate is vertically equipped with a plurality of the location feeler, the location feeler with the constant head tank grafting links to each other, just metal base plate with still include to compress tightly between the clamp plate the backing plate.
Preferably, the three laminations include: the piezoelectric ceramic is glued on the top and the bottom of the metal substrate through adhesives respectively.
Preferably, the positioning grooves are formed in the left end and the right end of the bottom of the metal substrate.
Preferably, the number of the positioning slots and the number of the positioning antenna are respectively four, and the positioning slots and the positioning antenna are longitudinally and linearly arranged.
Preferably, the positioning groove is in a dovetail groove or circular groove structure, and the positioning antenna is matched with the corresponding positioning groove.
Preferably, the backing plate further comprises a longitudinally and linearly arranged inserting groove matched with the positioning groove, and the inserting groove is used for inserting and passing through the positioning antenna.
Preferably, the backing plate is made of an elastic material with a high linear expansion coefficient.
Preferably, the pressing plate further comprises a positioning hole which is longitudinally and linearly opened.
The invention also provides another technical scheme: an acoustic logging dipole transducer, comprising: the transducer framework and the three-lamination mounting and fixing structure are arranged on the transducer framework; and fixedly mounting the three-lamination mounting and fixing structure to the corresponding slot position of the transducer framework through a screw.
The invention has the following beneficial effects:
the connecting structure of the positioning groove between the pressing plate and the metal substrate can effectively reduce the stress on the three laminations when the transducer framework deforms at high temperature, and has the effects of prolonging the service life of the acoustic logging dipole transducer under the high-temperature working environment and improving the high-temperature-resistant grade.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a transducer of the prior art.
Fig. 2 is a diagram of a prior art transducer skeleton.
Fig. 3 is a three-lamination block diagram in the prior art.
Fig. 4 is an exploded view of the three-lamination and skeleton mounting and fixing structure of the transducer of the present invention.
Fig. 5 is a schematic view of the front (i.e., top) of a three-piece laminate of the present invention.
Fig. 6 is a schematic view of the back (i.e., bottom) of a three-piece laminate of the present invention.
Fig. 7 is an exploded view of a three-piece fixed mounting structure of the present invention.
Fig. 8 is an enlarged partial exploded view of the three-laminate stationary mounting structure of the present invention.
In the figure: the piezoelectric transducer comprises a 1-pressing plate, a 2-backing plate, a 21-inserting groove, a 3-positioning groove, a 4-positioning antenna, a 5-metal substrate, 6-piezoelectric ceramics, 7-positioning holes, an 8-transducer framework, 9-screws and 10-fixing screw holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 4 to 8, the embodiment of the invention provides a technical scheme of a high-temperature-resistant piezoelectric three-lamination mounting and fixing structure, which comprises the following steps: the device comprises a pressing plate 1, a backing plate 2, three laminations, a positioning groove 3 and a positioning antenna 4; a plurality of positioning grooves 3 are longitudinally formed in two ends of the metal substrate 5 of the three laminates, a plurality of positioning feelers 4 are longitudinally arranged at one end of the pressing plate 1, the positioning feelers 4 are connected with the positioning grooves 3 in an inserting mode, and a pressing base plate 2 is further arranged between the metal substrate 5 and the pressing plate 1.
The three laminates include: the piezoelectric ceramic 6 is glued on the top and the bottom of the metal substrate 5 through an adhesive respectively.
The positioning grooves 3 are formed in the left and right ends of the bottom of the metal substrate 5.
The number of the positioning grooves 3 and the positioning antennae 4 is four respectively, and the positioning grooves and the positioning antennae are all longitudinally and linearly arranged.
The positioning groove 3 is arranged in a dovetail groove or circular groove structure, and meanwhile the positioning antenna 4 is matched with the corresponding positioning groove 3.
The backing plate 2 also comprises a longitudinally linearly arranged inserting groove 21 matched with the positioning groove 3 for inserting and passing the positioning antenna 4.
The backing plate 2 is made of an elastic material with a high linear expansion coefficient.
The pressing plate 1 further comprises a positioning hole 7 which is longitudinally and linearly arranged, and the positioning hole is convenient to be inserted and locked through a screw 9 when being installed with a fixing screw hole 10 on the transducer framework 8, so that the pressing plate 1 is fixed.
The embodiment of the invention also provides an acoustic logging dipole transducer, which comprises: the transducer skeleton 8 and the three-lamination mounting and fixing structure are arranged; the three-lamination mounting fixture is fixedly mounted to the corresponding slot of the transducer frame 8 by screws 9.
The invention also comprises the following manufacturing methods:
(1) the three-laminated metal substrate 5 of the prior art is divided into three parts: a pressing plate 1, a backing plate 2 and a metal substrate 5; (2) the positioning groove 3 is processed on the metal substrate 5, and can adopt structural forms such as a dovetail groove, a circular positioning groove 3 and the like, and the embodiment is schematically shown by the dovetail groove; (3) bonding the metal substrate 5 with the positioning groove 3 with the piezoelectric ceramic 6; (4) two ends of the metal substrate 5 are provided with backing plates 2; (5) mounting pressing plates 1 at two ends of a metal substrate 5, and inserting positioning feelers 4 of the pressing plates 1 into positioning grooves 3 on the metal substrate 5 during mounting; (6) the three laminations are placed onto corresponding slots of the transducer frame 8 and secured with screws 9.
The design principle adopted by the invention is as follows: because the deformation of the transducer skeleton 8 along the length direction is larger after being heated, the three laminations can be pulled along the length direction of the skeleton, which is the reason for causing larger stress concentration in the three laminations, so that the stress concentration on the three laminations can be avoided as long as the pulling force of the skeleton to the three laminations along the length direction is released, the invention can be used for mounting the pressing plate 1 and the backing plate 2 on two ends of the metal substrate 5 during mounting by processing the positioning groove 3 on the metal substrate 5, and then fixing the combined three laminations on the transducer skeleton 8 by using the screws 9. When the transducer skeleton 8 deforms at high temperature, the skeleton stretches along the length direction to drive the screw 9 and the pressing plate 1 to displace simultaneously, sliding is generated between the pressing plate 1 and the metal substrate 5 at the positioning groove 3, the metal substrate 5 cannot be stretched by the skeleton and the pressing plate 1, and the stress in the three laminates is small. In addition, the backing plate 2 between the metal substrate 5 and the pressing plate 1 is made of an elastic material with a high linear expansion coefficient, and when the transducer framework 8 is heated and stretched, the backing plate 2 expands and stretches, so that gaps generated by sliding between the metal substrate 5 and the pressing plate 1 can be filled, and the metal substrate 5 is ensured not to freely slide along the length direction of the framework.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. High temperature resistant piezoelectricity three lamination installation fixed knot constructs, its characterized in that includes: the device comprises a pressing plate (1), a backing plate (2), three laminations, a positioning groove (3) and a positioning antenna (4); a plurality of positioning grooves (3) are longitudinally formed in two ends of the metal substrate (5) of the three laminates, a plurality of positioning feelers (4) are longitudinally arranged at one end of the pressing plate (1), the positioning feelers (4) are connected with the positioning grooves (3) in an inserting mode, and the pressing plate (1) is further provided with a pressing base plate (2) between the metal substrate (5).
2. The high temperature resistant piezoelectric three-lamination mounting fixture of claim 1, wherein the three-lamination comprises: the piezoelectric ceramic comprises a metal substrate (5) and piezoelectric ceramics (6), wherein the top and the bottom of the metal substrate (5) are respectively glued with the piezoelectric ceramics (6) through adhesives.
3. The high-temperature-resistant piezoelectric three-lamination mounting and fixing structure according to claim 2, wherein the positioning grooves (3) are formed in the left and right ends of the bottom of the metal substrate (5).
4. The high-temperature-resistant piezoelectric three-lamination mounting and fixing structure according to claim 3, wherein the number of the positioning grooves (3) and the positioning antenna (4) is four respectively, and the positioning grooves and the positioning antenna (4) are longitudinally and linearly arranged.
5. The high-temperature-resistant piezoelectric three-lamination mounting and fixing structure according to claim 4, wherein the positioning groove (3) is formed in a dovetail groove or circular groove structure, and the positioning antenna (4) is matched with the corresponding positioning groove (3).
6. The high-temperature-resistant piezoelectric three-lamination mounting and fixing structure according to claim 5, wherein the backing plate (2) further comprises a longitudinally and linearly arranged inserting groove (21) matched with the positioning groove (3) for inserting and passing through the positioning antenna (4).
7. The high-temperature-resistant piezoelectric three-lamination mounting and fixing structure according to claim 1, wherein the backing plate (2) is made of an elastic material with a high linear expansion coefficient.
8. The high-temperature-resistant piezoelectric three-lamination mounting and fixing structure according to claim 1, wherein the pressing plate (1) further comprises a positioning hole (7) which is longitudinally and linearly opened.
9. An acoustic logging dipole transducer, comprising: a transducer backbone (8) and a three-laminate mounting fixture as claimed in any one of claims 1-8; the three-lamination mounting and fixing structure is fixedly mounted on the corresponding groove position of the transducer framework (8) through a screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211579385.2A CN116140173A (en) | 2022-12-09 | 2022-12-09 | High-temperature-resistant piezoelectric three-lamination mounting and fixing structure and transducer comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211579385.2A CN116140173A (en) | 2022-12-09 | 2022-12-09 | High-temperature-resistant piezoelectric three-lamination mounting and fixing structure and transducer comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116140173A true CN116140173A (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211579385.2A Pending CN116140173A (en) | 2022-12-09 | 2022-12-09 | High-temperature-resistant piezoelectric three-lamination mounting and fixing structure and transducer comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116140173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116913235A (en) * | 2023-09-14 | 2023-10-20 | 中石化经纬有限公司 | Low-frequency broadband dipole sound source |
-
2022
- 2022-12-09 CN CN202211579385.2A patent/CN116140173A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116913235A (en) * | 2023-09-14 | 2023-10-20 | 中石化经纬有限公司 | Low-frequency broadband dipole sound source |
| CN116913235B (en) * | 2023-09-14 | 2023-12-26 | 中石化经纬有限公司 | Low-frequency broadband dipole sound source |
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