CN220542843U - Transducer constant-voltage stable coupling device for field test of acoustic wave velocity of rock core - Google Patents
Transducer constant-voltage stable coupling device for field test of acoustic wave velocity of rock core Download PDFInfo
- Publication number
- CN220542843U CN220542843U CN202321802787.4U CN202321802787U CN220542843U CN 220542843 U CN220542843 U CN 220542843U CN 202321802787 U CN202321802787 U CN 202321802787U CN 220542843 U CN220542843 U CN 220542843U
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- Prior art keywords
- sleeve
- transducer
- snap ring
- left sleeve
- rock core
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 230000008878 coupling Effects 0.000 title claims abstract description 28
- 238000010168 coupling process Methods 0.000 title claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 28
- 239000011435 rock Substances 0.000 title claims abstract description 27
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a transducer constant-pressure stable coupling device for core acoustic wave speed field test, which comprises a left sleeve, a right sleeve and a rotary clamping ring, wherein a wiring hole, an annular bulge and a hard sponge are arranged on the left sleeve, the wiring hole and the hard sponge are arranged on the right sleeve, the rotary clamping ring comprises a clamping ring, a retaining cover and a plane thrust ball bearing, the transducer hole is arranged on the hard sponge, the plane thrust ball bearing is fixed on the retaining cover, the clamping ring is inserted into the right end of the left sleeve, and the clamping ring is sleeved into the left sleeve. The device is portable, can make transducer and rock core be in constant voltage, steady coupling state, effectively reduces the discrete data duty cycle that produces because of coupling pressure or coupling position change, is favorable to improving rock core sound wave velocity test accuracy, is applicable to the open-air test work of rock core sound wave velocity.
Description
Technical Field
The utility model relates to the field of geophysical detection and detection monitoring, in particular to a constant-voltage stable coupling device of a transducer for field testing of acoustic wave velocity of a rock core.
Background
In the investigation design and construction stage of engineering fields such as water conservancy, railway, traffic, etc., the field acoustic wave velocity test is often required to be carried out on core drilling of key positions, and the investigation stage is mainly used for determining the wave velocity of fresh complete rock blocks with different lithology or researching the creep rule of the rock block wave velocity along with time, and the construction stage is mainly prone to checking whether the rock block wave velocity meets the design requirement. The stability of the coupling environment in the rock wave velocity test process has an influence on the test result, in the fresh and complete rock wave velocity test process, the test is generally carried out for many times, discrete data are removed, then the average value is taken as the final test result, in the process of researching the creep rule of the rock wave velocity along with time, the test rock core is required to be taken out from the hole at equal intervals, and in the test process of each time point, the test process also needs to be carried out for many times to obtain the average value. The constant pressure and the coupling point are kept in the field wave speed testing process, so that the discrete data duty ratio can be effectively reduced, and the accuracy of the testing result is improved.
In the prior art, an artificial hand transducer mode is adopted, the coupling pressure and the coupling position are relatively unstable, and a heavier device is adopted for clamping test, so that the volume and the quality of the device are relatively unsuitable for carrying in the open air, and the device which has small volume, light weight and easy operation and can provide a stable coupling environment has positive significance for optimizing the core acoustic wave velocity field test work.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the transducer constant-voltage stable coupling device which is convenient to carry and low in cost and is used for field test of the acoustic wave speed of the rock core, is suitable for realizing the constant-voltage and stable coupling state of the transducer and the rock core in the field, reduces the discrete test data occupation ratio caused by unstable coupling pressure or coupling position, and improves the accuracy of the acoustic wave speed test of the rock core.
In order to solve the technical problems, the utility model adopts the following technical scheme: : the constant-pressure stable coupling device for the transducer for the core acoustic wave speed field test comprises a left sleeve, a right sleeve and a rotary clamping ring, wherein the left sleeve is a cylinder with a bottom at the left end; the right sleeve is a cylinder with a bottom at the right end, the bottom of the right end of the right sleeve is provided with a second wiring hole which is axially communicated, the outer side wall of the left end of the right sleeve is provided with external threads, the outer diameter of the right sleeve is smaller than the inner diameter of the left sleeve, so that the left sleeve can be sleeved outside the right sleeve and move left and right, a cylindrical second hard sponge is fixed at the inner side of the bottom of the right end of the right sleeve, and a second mounting hole which is communicated with the second wiring hole and used for mounting a transducer is arranged on the second hard sponge; the rotary snap ring comprises a snap ring, a baffle cover and a plane thrust ball bearing, wherein the snap ring is a short cylinder with a bottom at the right end, the bottom of the right end of the snap ring is provided with an axial through rotary hole, the inner side wall of the rotary hole is provided with an internal thread matched with the external thread on the right sleeve, the snap ring is connected with the left end of the right sleeve in a threaded manner, the baffle cover is a circular plate, is sleeved on the outer wall of the left sleeve and is fixed on the opening side of the snap ring, the annular bulge on the left sleeve is just movably clamped in a cavity formed by the snap ring and the baffle cover, the inner side surface of the baffle cover is provided with an annular groove for installing the bearing, and the plane thrust ball bearing is installed in the annular groove and is contacted with the left side surface of the annular bulge and moves left and right through the snap ring to drive the left sleeve to move left and right on the outer wall of the right sleeve.
The first and second mounting holes have an inner diameter that is the same as the transducer diameter such that the transducer is axially centered.
The retaining cover is fixed on the cylinder wall of the clamping ring through bolts.
The beneficial effects of the utility model are as follows: the device is light and small, portable, simple to operate, low in cost and reusable, the left sleeve and the right sleeve are enabled to move in opposite directions by rotating the left clamping ring and the right clamping ring, and then the transducer and the rock core are in a constant-pressure and stable coupling state, artificial interference is avoided in the testing process, the stable coupling environment of testing is improved, the discrete testing data occupation ratio generated by unstable coupling pressure or coupling position is effectively reduced, and accordingly the device is beneficial to improving the accuracy of rock core acoustic wave speed testing, and is suitable for work such as rock core acoustic wave speed field testing.
Drawings
FIG. 1 is a schematic view of the transducer constant voltage stable coupling device for field test of acoustic wave velocity of a rock core.
FIG. 2 is a schematic cross-sectional view of a constant-voltage stable coupling device for a transducer for core acoustic wave velocity field test.
Detailed Description
The technical scheme of the utility model will be clearly and completely described below with reference to the accompanying drawings; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the method comprises the steps of carrying out a first treatment on the surface of the Can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and 2, the constant-pressure stable coupling device of the transducer for the field test of the acoustic wave velocity of the rock core comprises a left sleeve 1, a right sleeve 2 and a rotary clamping ring, wherein the left sleeve 1 is a cylinder with a bottom at the left end, a first wiring hole 8 which is axially communicated is formed at the bottom of the left end of the left sleeve 1, an annular bulge 9 is arranged at the outer side of the right end of the left sleeve 1, a cylindrical first hard sponge 5 is fixed at the inner side of the bottom of the left end of the left sleeve 1, and a first mounting hole 6 for mounting the transducer which is communicated with the first wiring hole 8 is formed on the first hard sponge 5; the right sleeve 2 is a cylinder with a bottom at the right end, the bottom of the right end of the right sleeve 2 is provided with a second wiring hole 18 which is axially communicated, the outer side wall of the left end of the right sleeve 2 is provided with external threads, the outer diameter of the right sleeve 2 is smaller than the inner diameter of the left sleeve 1, so that the left sleeve 1 can be sleeved outside the right sleeve 2 and move left and right, a cylindrical second hard sponge 15 is fixed at the inner side of the bottom of the right end of the right sleeve 2, and the second hard sponge 15 is provided with a second mounting hole 16 which is communicated with the second wiring hole 18 and used for mounting a transducer; the rotary snap ring comprises a snap ring 4, a baffle cover 3 and a plane thrust ball bearing 12, wherein the snap ring 4 is a short cylinder with a bottom at the right end, the bottom of the right end of the snap ring 4 is provided with an axial through rotary hole 13, the inner side wall of the rotary hole 13 is provided with an internal thread matched with the external thread on the right sleeve 2, the snap ring 4 is in threaded connection with the left end of the right sleeve 2, the baffle cover 3 is a circular plate, the outer wall of the left sleeve 1 is sleeved with the circular plate and fixed on the opening side of the snap ring 4, the annular bulge 9 on the left sleeve 1 is just movably clamped in a cavity formed by the snap ring 4 and the baffle cover 3, the inner side surface of the baffle cover 3 is provided with an annular groove 14 for installing the bearing, and the annular bearing 12 is installed in the annular groove 14 and is contacted with the left side surface of the annular bulge 9 and drives the left sleeve 1 to move left and right smoothly on the outer wall of the right sleeve 2 through left and right movement of the snap ring 4.
The first and second mounting holes 6, 16 have an inner diameter that is the same as the diameter of the transducer so that the transducer remains axially centered.
The blocking cover 3 is fixed on the cylinder wall of the clamping ring 4 through bolts.
The application method of the utility model is as follows: firstly, smearing a coupling agent on the surface of a transducer, respectively placing two transducers into a first mounting hole 6 and a second mounting hole 16, then selecting a right sleeve 2 matched with the diameter of a rock core, loading the prepared rock core into the right sleeve 2, enabling the center of the right end side surface of the rock core to be coupled with the transducers, finally connecting a left sleeve 1 with the right sleeve 2 through a retaining cover 3 and a retaining ring 4, manually fixing the left sleeve 1 with the right sleeve 2, and simultaneously rotating the retaining ring 4 until the transducers in the left sleeve 1 are tightly coupled with the left end side surface of the rock core, wherein the annular bearing 12 rolls on the surface of an annular bulge 9 and the retaining ring 4 and the retaining cover 3 are clamped, so that the left sleeve 1 and the right sleeve 2 do not rotate, the relative stillness of the two transducers is ensured, and under the fastening state of the retaining ring 4, the coupling pressure of the rock core and the transducers is in a stable state.
The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model are still within the scope of the present utility model.
Claims (3)
1. The constant-pressure stable coupling device for the energy converter for the core acoustic wave speed field test is characterized by comprising a left sleeve (1), a right sleeve (2) and a rotary clamping ring, wherein the left sleeve (1) is a cylinder with a bottom at the left end, a first wiring hole (8) which is axially communicated is formed in the bottom of the left end of the left sleeve (1), an annular bulge (9) is formed in the outer side of the right end of the left sleeve (1), a cylindrical first hard sponge (5) is fixed on the inner side of the bottom of the left end of the left sleeve (1), and a first mounting hole (6) for mounting the energy converter, which is communicated with the first wiring hole (8), is formed in the first hard sponge (5); the right sleeve (2) is a cylinder with a bottom at the right end, the bottom of the right end of the right sleeve (2) is provided with a second wiring hole (18) which is axially penetrated, the outer side wall of the left end of the right sleeve (2) is provided with external threads, the outer diameter of the right sleeve (2) is smaller than the inner diameter of the left sleeve (1), the left sleeve (1) can be sleeved outside the right sleeve (2) and moves left and right, the inner side of the bottom of the right end of the right sleeve (2) is fixedly provided with a cylindrical second hard sponge (15), and the second hard sponge (15) is provided with a second mounting hole (16) which is communicated with the second wiring hole (18) and used for mounting a transducer; the rotary snap ring comprises a snap ring (4), a baffle cover (3) and a plane thrust ball bearing (12), wherein the snap ring (4) is a short cylinder with a bottom at the right end, an axial through rotary hole (13) is formed in the bottom of the right end of the snap ring (4), an inner thread matched with an outer thread on a right sleeve (2) is arranged on the inner side wall of the rotary hole (13), the snap ring (4) is connected with the left end of the right sleeve (2) in a threaded manner, the baffle cover (3) is a circular plate, the outer wall of the left sleeve (1) is sleeved with the baffle cover and fixed on the opening side of the snap ring (4), a circular bulge (9) on the left sleeve (1) is exactly movably clamped in a cavity formed by the snap ring (4) and the baffle cover (3), a circular groove (14) for installing the bearing is formed in the inner side surface of the baffle cover (3), the plane thrust ball bearing (12) is arranged in the circular groove (14) and is contacted with the left side surface of the circular bulge (9), and the left side surface of the circular bulge (9) is driven to move left and right smoothly left and right through the snap ring (4).
2. The constant voltage stable coupling device for the transducer for core acoustic wave velocity field testing according to claim 1, wherein the inner diameters of the first mounting hole (6) and the second mounting hole (16) are the same as the diameter of the transducer, so that the transducer is kept axially centered.
3. The constant-pressure stable coupling device for the transducer for field testing of the acoustic wave speed of the rock core according to claim 1, wherein the baffle cover (3) is fixed on the cylinder wall of the clamping ring (4) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321802787.4U CN220542843U (en) | 2023-07-07 | 2023-07-07 | Transducer constant-voltage stable coupling device for field test of acoustic wave velocity of rock core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321802787.4U CN220542843U (en) | 2023-07-07 | 2023-07-07 | Transducer constant-voltage stable coupling device for field test of acoustic wave velocity of rock core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220542843U true CN220542843U (en) | 2024-02-27 |
Family
ID=89961117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321802787.4U Active CN220542843U (en) | 2023-07-07 | 2023-07-07 | Transducer constant-voltage stable coupling device for field test of acoustic wave velocity of rock core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220542843U (en) |
-
2023
- 2023-07-07 CN CN202321802787.4U patent/CN220542843U/en active Active
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