CN216386099U - Vibration isolation mounting structure for underwater explosion chamber pressure measuring sensor - Google Patents
Vibration isolation mounting structure for underwater explosion chamber pressure measuring sensor Download PDFInfo
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- CN216386099U CN216386099U CN202122947081.4U CN202122947081U CN216386099U CN 216386099 U CN216386099 U CN 216386099U CN 202122947081 U CN202122947081 U CN 202122947081U CN 216386099 U CN216386099 U CN 216386099U
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Abstract
The utility model relates to a vibration isolation mounting structure of an underwater explosion chamber pressure measuring sensor, which comprises a wall pressure measuring wall surface, wherein a through hole is formed in the wall pressure measuring wall surface in a vertically penetrating manner, a vibration isolation block is inserted into the through hole in an interference manner from top to bottom, and a wall pressure measuring sensor is inserted into the vibration isolation block in an interference manner from top to bottom; a pressing sheet is pressed above the vibration isolation block and is fixedly connected with the wall pressure measuring wall surface; through the setting of vibration isolation piece and preforming, reliably install wall pressure measuring transducer on the wall pressure measurement wall, and can play the vibration isolation effect, thereby can effectively alleviate the influence that wall pressure measuring transducer received the structure vibration when measuring the wall pressure load of explosion under water, in order to eliminate most wall pressure wave form interference that leads to by the structure vibration, make wall pressure measuring transducer's monitoring data more reliable effective, provide technical means for the accurate measurement of explosion wall pressure under water.
Description
Technical Field
The utility model relates to the technical field of sensor application, in particular to a vibration isolation mounting structure of an underwater explosion chamber pressure measuring sensor.
Background
The underwater explosion is one of the main threats of the vitality of ships, the damage capability of the underwater explosion mainly comes from explosion shock waves and explosion bubble loads, the pressure is one of the most important parameters for representing the underwater explosion loads, and the magnitude of the explosion load suffered by a target structure can be determined by measuring the wall surface pressure of the structure, so that the explosion power of various explosives and warheads can be evaluated, and therefore the underwater explosion-proof ship has very important significance for ship anti-explosion research and weapon design.
In an underwater explosion test, the wall pressure measuring sensor has higher vibration isolation requirement, and because the wall pressure measuring sensor is usually contacted with the wall surface of a structure, when a sensitive surface of the sensor senses a normal incidence pressure load, the sensitive surface of the sensor can also generate vibration under the action of bending stress waves and the like on the surface of the structure, and the vibration can generate superposition interference on the signal output of the sensor, thereby influencing the accuracy of the wall pressure signal measured by the sensor.
In view of this, in the process of measuring the wall pressure of the underwater explosion, on the premise of ensuring the stable connection between the sensor and the surface of the structure, it is very important to have a good vibration isolation measure between the sensor and the wall surface of the structure to be measured, and there is no effective way for the vibration isolation installation of the sensor on the wall surface of the structure to be measured in the prior art.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art and provides the underwater explosion chamber pressure measuring sensor vibration isolation mounting structure which is reasonable in structure, so that the wall pressure measuring sensor is reliably mounted, vibration isolation is realized, the reliability and the accuracy of measured data are effectively improved, and the practicability is good.
The technical scheme adopted by the utility model is as follows:
a vibration isolation mounting structure of an underwater explosion chamber pressure measuring sensor comprises a wall pressure measuring wall surface, wherein a through hole is formed in the wall pressure measuring wall surface in a penetrating mode from top to bottom, a vibration isolation block is inserted into the through hole in an interference mode from top to bottom, and a wall pressure measuring sensor is inserted into the vibration isolation block in an interference mode from top to bottom; and a pressing sheet is pressed above the vibration isolation block and is fixedly connected with the wall pressure measurement wall surface.
As a further improvement of the above technical solution:
the upper flanging of the pressing sheet is pressed above the vibration isolation block, and the lower flanging of the pressing sheet is attached to the upper surface of the wall pressure measurement wall surface and locked by a fastener.
The inner side wall surface of the pressing sheet is tightly attached to the vibration isolation block along the circumferential direction through an inclined surface structure.
And a sealing ring is also arranged between the pressing sheet lower flanging and the vibration isolation block along the circumferential direction in a pressing manner.
The pressing sheet comprises two annular structures which form an upper flanging and a lower flanging, and the outer edge of the upper flanging is connected with the inner edge of the lower flanging through a downward-opened inclined surface structure.
The diameter of the central hole in the middle of the flanging on the pressing sheet is larger than that of the wall pressure measuring sensor.
The inner edge of the lower flange is provided with an annular groove for accommodating the sealing ring along the circumferential direction, and the lower flange positioned on the outer side of the annular groove is evenly provided with locking holes along the circumferential direction.
The vibration isolation piece includes the cylindricality portion in the through-hole of cartridge to wall pressure measurement wall, and cylindricality portion top forms frustum portion to circumference extension, and frustum portion pressure equipment holds between preforming and wall pressure measurement wall.
The lower end face of the wall pressure measuring sensor is flush with the lower end face of the vibration isolation block, and the lower end face of the wall pressure measuring sensor, which is flush with the vibration isolation block, is inwards contracted at the lower hole of the wall pressure measuring wall surface through hole.
Waterproof coatings are coated on the lower end face of the wall pressure measuring sensor, the lower end face of the vibration isolation block and the wall pressure measuring wall face; and a waterproof coating is coated between the orifice on the vibration isolation block and the wall pressure measuring sensor.
The utility model has the following beneficial effects:
the wall pressure measuring sensor is compact and reasonable in structure and convenient to operate, and the wall pressure measuring sensor is reliably installed on the wall pressure measuring wall surface through the arrangement of the vibration isolation block and the pressing sheet and can play a role in vibration isolation, so that the influence of vibration of a structure on the wall pressure measuring sensor can be effectively reduced when the wall pressure load of the underwater explosion is measured, the waveform interference of the wall pressure caused by the vibration of the structure is eliminated, the monitoring data of the wall pressure measuring sensor is more reliable and effective, a technical means is provided for accurately measuring the wall pressure of the underwater explosion, and the practicability is good;
the utility model also comprises the following advantages:
according to the utility model, the wall pressure measuring sensor is accurately positioned and reliably and fixedly mounted, and simultaneously has good vibration isolation performance, and can reliably measure the complete shock wave pressure time course under the condition of bearing dozens of MPa high pressure.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the present invention in a top view of FIG. 1.
FIG. 3 is a schematic view of the structure of the tablet of the present invention.
Fig. 4 is a schematic view of the installation of the vibration isolation block and the wall pressure measuring sensor according to the present invention.
Wherein: 1. tabletting; 2. a wall pressure measuring sensor; 3. a vibration isolation block; 4. measuring the wall surface by wall pressure; 5. a fastener; 6. a seal ring;
101. a central bore; 102. an annular groove; 103. locking holes;
301. a frustum portion; 302. a cylindrical portion.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the vibration isolation mounting structure of the underwater explosion bore pressure measuring sensor of the present embodiment includes a wall pressure measuring wall surface 4, a through hole is formed through the wall pressure measuring wall surface 4 from top to bottom, a vibration isolation block 3 is inserted into the through hole in an interference manner from top to bottom, and a wall pressure measuring sensor 2 is inserted into the vibration isolation block 3 in an interference manner from top to bottom; the pressing sheet 1 is pressed above the vibration isolation block 3, and the pressing sheet 1 is fixedly connected with the wall pressure measuring wall surface 4.
Through the setting of vibration isolation piece 3 and preforming 1, reliably install wall pressure measuring transducer 2 on wall pressure measurement wall surface 4 to can play the vibration isolation effect, thereby can effectively alleviate the influence that wall pressure measuring transducer 2 received the structure vibration when measuring the underwater explosion wall pressure load, in order to eliminate most wall pressure wave form interference that leads to by the structure vibration, make wall pressure measuring transducer 2's monitoring data more reliable effective.
The upper flanging of the pressing sheet 1 is pressed above the vibration isolation block 3, and the lower flanging of the pressing sheet 1 is attached to the upper surface of the wall pressure measurement wall surface 4 and locked by the fastening piece 5, so that the vibration isolation block 3 is tightly attached to the wall pressure measurement wall surface 4.
The inner side wall surface of the pressing sheet 1 is tightly attached to the vibration isolation block 3 along the circumferential direction through an inclined surface structure, so that the vibration isolation block 3 is uniformly pressed after installation.
And a sealing ring 6 is also arranged between the lower flanging of the pressing sheet 1 and the vibration isolation block 3 along the circumferential direction in a pressing manner.
The pressing sheet 1 comprises two annular structures which form an upper flanging and a lower flanging, the outer edge of the upper flanging is connected with the inner edge of the lower flanging through a downward-opening inclined surface structure, and the frustum part 301 of the vibration isolation block 3 is pressed and contained in the inclined surface structure.
As shown in fig. 3, the diameter of the center hole 101 in the center of the upturn of the pressing sheet 1 is larger than that of the wall pressure measuring sensor 2; when mounting, the pressing sheet 1 is adjusted so that the center hole 101 is axially concentrically arranged with the wall pressure measuring sensor 2 and the cylindrical portion 302 of the vibration isolating block 3.
An annular groove 102 for accommodating the sealing ring 6 is formed in the inner edge of the lower flanging along the circumferential direction, and locking holes 103 are uniformly formed in the lower flanging on the outer side of the annular groove 102 along the circumferential direction; the fastener 5 passes through the locking hole 103 from top to bottom and then is locked with the threaded hole on the wall pressure measuring wall surface 4.
As shown in fig. 4, the vibration insulating block 3 includes a cylindrical portion 302 inserted into the through hole of the wall pressure measuring wall surface 4, the cylindrical portion 302 being fitted with the through hole of the wall pressure measuring wall surface 4 in interference; the top of the cylindrical portion 302 extends in the circumferential direction to form a small-top and large-bottom frustum portion 301, and the frustum portion 301 is press-fitted and accommodated between the pressing sheet 1 and the wall pressure measurement wall surface 4.
The lower end face of the wall pressure measuring sensor 2 is flush with the lower end face of the vibration isolation block 3, and the lower end face of the wall pressure measuring sensor 2 flush with the vibration isolation block 3 is inwards contracted at the lower hole of the through hole of the wall pressure measuring wall face 4.
Waterproof coatings are coated on the lower end face of the wall pressure measuring sensor 2, the lower end face of the vibration isolation block 3 and the wall pressure measuring wall face 4, and the waterproof coatings are coated on the intervals between the lower hole opening of the through hole of the wall pressure measuring wall face 4 and the lower end face of the vibration isolation block 3; and a waterproof coating is coated between the upper hole of the vibration isolation block 3 and the wall pressure measuring sensor 2.
In the embodiment, most of the wall pressure measuring sensor 2 is wrapped inside the vibration isolation block 3, and the wall pressure measuring sensor 2 is inserted into the vibration isolation block 3 in an interference manner through the elasticity of the material of the vibration isolation block 3;
in this embodiment, the vibration isolation block 3 is a silica gel waterproof vibration isolation material.
In the embodiment, the wall pressure measuring sensor 2 is accurately positioned and reliably and fixedly installed, and good vibration isolation performance is provided, the wall pressure measuring sensor 2 can reliably measure the complete shock wave pressure time course under the condition of bearing dozens of megapascals of high pressure, and a technical means is provided for accurately measuring the wall pressure of the underwater explosion.
During installation, the wall pressure measuring sensor 2 is inserted into the vibration isolation block 3 in an interference fit mode, the lower end portions of the wall pressure measuring sensor 2 and the vibration isolation block 3 are flush, and then the cylindrical portion 302 at the lower portion of the vibration isolation block 3 is inserted into the wall pressure measuring wall surface 4 in an interference fit mode; a sealing ring 6 is plugged in an annular groove 102 on the bottom surface of the downward flanging of the pressing sheet 1, the pressing sheet 1 is sleeved outside the vibration isolation block 3 from top to bottom, and a fastening piece 5 is locked in a locking hole 103 of the downward flanging, so that the pressing sheet 1 is fastened relative to a wall pressure measuring wall surface 4, and at the moment, the bottom surface of the downward flanging of the pressing sheet 1 and the bottom surface of a conical table part 301 of the vibration isolation block 3 are both attached to the top surface of the wall pressure measuring sensor 2; and finally, coating waterproof coatings at the lower hole of the through hole of the wall pressure measuring wall surface 4 and the upper hole of the wall pressure measuring sensor 2 and the vibration isolation block 3 to finish the vibration isolation installation of the wall pressure measuring sensor 2.
The wall pressure measuring sensor 2 is simple to operate, convenient and reliable to use, capable of achieving effective vibration isolation installation of the wall pressure measuring sensor 2, good in practicability and particularly suitable for chamber pressure monitoring during underwater explosion, and can be used for improving accuracy of measured data.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
Claims (10)
1. The utility model provides an explosion thorax pressure measurement sensor vibration isolation mounting structure under water, includes wall pressure measurement wall (4), its characterized in that: a through hole is formed in the wall pressure measuring wall surface (4) in a penetrating way from top to bottom, a vibration isolation block (3) is inserted into the through hole in an interference manner from top to bottom, and a wall pressure measuring sensor (2) is inserted into the vibration isolation block (3) in an interference manner from top to bottom; the pressing sheet (1) is pressed above the vibration isolation block (3), and the pressing sheet (1) is fixedly connected with the wall pressure measuring wall surface (4).
2. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 1, wherein: the upper flanging of the pressing sheet (1) is pressed above the vibration isolation block (3), and the lower flanging of the pressing sheet (1) is attached to the upper surface of the wall pressure measuring wall surface (4) and locked by a fastener (5).
3. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 2, wherein: the inner side wall surface of the pressing sheet (1) is attached and pressed with the vibration isolation block (3) through an inclined surface structure along the circumferential direction.
4. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 2, wherein: and a sealing ring (6) is also arranged between the lower flanging of the pressing sheet (1) and the vibration isolation block (3) along the circumferential direction in a pressing manner.
5. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 2, wherein: the pressing sheet (1) comprises two annular structures which form an upper flanging and a lower flanging, and the outer edge of the upper flanging is connected with the inner edge of the lower flanging through a downward-opened inclined surface structure.
6. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 5, wherein: the diameter of a central hole (101) positioned in the middle of the upper flanging of the pressing sheet (1) is larger than that of the wall pressure measuring sensor (2).
7. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 5, wherein: an annular groove (102) for accommodating the sealing ring (6) is formed in the inner edge of the lower flange along the circumferential direction, and locking holes (103) are uniformly formed in the lower flange located on the outer side of the annular groove (102) along the circumferential direction.
8. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 1, wherein: the vibration isolation block (3) comprises a cylindrical part (302) inserted into a through hole of the wall pressure measuring wall surface (4), the top of the cylindrical part (302) extends to the circumferential direction to form a conical table part (301), and the conical table part (301) is pressed and contained between the pressing sheet (1) and the wall pressure measuring wall surface (4).
9. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 1, wherein: the lower end face of the wall pressure measuring sensor (2) is flush with the lower end face of the vibration isolation block (3), and the lower end face of the wall pressure measuring sensor (2) which is flush with the vibration isolation block (3) is inwards contracted at the lower hole opening of the through hole of the wall pressure measuring wall face (4).
10. The vibration isolation mounting structure of the underwater explosion chamber pressure measuring sensor according to claim 1, wherein: waterproof coatings are respectively coated on the lower end face of the wall pressure measuring sensor (2), the lower end face of the vibration isolation block (3) and the wall pressure measuring wall face (4); and a waterproof coating is coated between the upper hole of the vibration isolation block (3) and the wall pressure measuring sensor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122947081.4U CN216386099U (en) | 2021-11-26 | 2021-11-26 | Vibration isolation mounting structure for underwater explosion chamber pressure measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122947081.4U CN216386099U (en) | 2021-11-26 | 2021-11-26 | Vibration isolation mounting structure for underwater explosion chamber pressure measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216386099U true CN216386099U (en) | 2022-04-26 |
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ID=81219474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122947081.4U Active CN216386099U (en) | 2021-11-26 | 2021-11-26 | Vibration isolation mounting structure for underwater explosion chamber pressure measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216386099U (en) |
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2021
- 2021-11-26 CN CN202122947081.4U patent/CN216386099U/en active Active
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