CN217484261U - Fabric pipe material acoustic characteristic detection system - Google Patents
Fabric pipe material acoustic characteristic detection system Download PDFInfo
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- CN217484261U CN217484261U CN202221294631.5U CN202221294631U CN217484261U CN 217484261 U CN217484261 U CN 217484261U CN 202221294631 U CN202221294631 U CN 202221294631U CN 217484261 U CN217484261 U CN 217484261U
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Abstract
A textile tube material acoustic property detection system comprising: the signal source, power amplifier, the megaphone, fabric pipe installation module, the microphone, collection module, acoustic analysis module, display module, fabric pipe installation module includes the fabric installation cabin, the sound source cabin, the signal source, power amplifier, megaphone integrated form is installed in the sound source cabin, the microphone is installed through T shape sealing plug, the lift-type installation of T shape sealing plug is accomplished in the removal of the epitaxial gag lever post of T shape sealing plug in the fastening groove of fastening ring, all be provided with the sealing washer between terminal surface and the T shape sealing plug about the fabric pipe, the fastening ring, great improvement fabric pipe installation module's sealing performance, reduce the distortion factor of acoustic signal, improve acoustic detection system's accuracy.
Description
Technical Field
The utility model relates to a fabric tube material acoustic characteristic detects technical field, specifically is a fabric tube material acoustic characteristic detecting system.
Background
With the increasing requirements of the traditional vehicles and new energy vehicles on noise reduction, the air intake system and the air conditioning pipeline system of the vehicle involve complex pipeline noise; in order to better improve the noise of an automobile air inlet and air conditioner pipeline system, fabric pipes (woven pipes, PET molded pipes and the like) are increasingly used, and although the pipelines can achieve the effect of inhibiting the noise, the traditional material detection method cannot effectively acquire the acoustic characteristics of the pipelines due to the complex manufacturing process of the pipelines, so that the early forward development of the fabric pipes is supported; at present, conventional material acoustic performance testing equipment on the market mainly detects the characteristics of materials (such as sound absorption and sound insulation tests of an impedance tube on a sound absorption material), and the process influence of the materials in the process of processing the materials into pipelines cannot be considered; an analysis software DAPIS (applied for soft literature, registration number 2020SR0400397, first published in 2019, 10 and 20) for detecting and analyzing the characteristics of the material of the fabric tube is developed by Suzhou leopard acoustics, and the DAPIS analysis software solves the acoustic characteristics of the finished material fabric tube. There are still areas to be improved: because the leakproofness of fabric pipe installation module is low, inside and outside sound wave exchange leads to the fabric pipe acoustics to detect the precision low, moreover, the microphone is inserted directly and is connect in the fabric pipe installation module, is difficult to form effective seal, has reduced acoustics once more and has detected the precision.
The utility model provides a fabric tube material acoustic characteristic detecting system solves above-mentioned technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fabric tube material acoustic characteristic detecting system, includes signal source, power amplifier, megaphone, fabric tube installing module, microphone, collection module, acoustic analysis module, display module, signal source, power amplifier, megaphone connect gradually, and the fabric tube that awaits measuring is installed in the fabric tube installing module, the microphone includes two at least, the microphone is installed just be located respectively in the fabric tube installing module the inside and outside both sides of fabric tube, microphone, collection module, acoustic analysis module, display module connect gradually.
Preferably, a fabric pipe material acoustic characteristic detecting system, fabric pipe installation module includes fabric installation cabin, sound source cabin, fabric installation cabin, sound source cabin set up from top to bottom and the inner chamber intercommunication just through connecting a bridge body coupling, fabric installation cabin is including installation cabin, installation apron, the installation apron with installation apron screw fixation, the lower face of installation apron the lower facial features of sound source cabin has all processed the fabric pipe mounting groove, and the terminal surface is arranged in respectively about the fabric pipe that awaits measuring in the fabric pipe mounting groove.
Preferably, a fabric tube material acoustic characteristic detecting system, install first sealing washer in the fabric tube mounting groove of face under the installation apron, the face under the sound source cabin install the second sealing washer in the fabric tube mounting groove.
Preferably, in the acoustic characteristic detection system for the textile pipe material, the microphone is detachably assembled with the mounting cover plate by fastening a sealing assembly; the fastening sealing assembly comprises a T-shaped sealing plug and a fastening ring, a limiting rod is arranged on the outer ring surface of the T-shaped sealing ring, a fastening groove and a mounting groove are machined in the ring surface of the fastening ring, the upper end of the mounting groove is communicated with the upper end surface of the fastening ring, the lower end of the mounting groove is communicated with the fastening groove, a mounting hole is machined in the plate surface of the mounting cover plate, the fastening ring is welded on the inner wall of the mounting hole, the upper end of the fastening ring is lower than the upper plate surface of the mounting cover plate, a position avoiding cavity for the limiting rod to rotate and avoid is machined in the mounting hole, the limiting rod of the T-shaped sealing plug enters the fastening groove through the mounting groove, and the position of the limiting rod in the fastening groove is changed through rotating the limiting rod so as to realize the lifting of the T-shaped sealing plug; when the T-shaped sealing plug is installed completely, the limiting rod is located at the lowest position in the fastening groove, and the upper plate surface of the T-shaped sealing plug is flush with the upper plate surface of the installation cover plate; and the shell of the microphone is fixedly arranged in the microphone mounting hole of the T-shaped sealing plug, and the lower end of the shell of the microphone penetrates through the hole on the lower plate surface of the fastening ring.
Preferably, in the acoustic characteristic detection system for the fabric tube material, a hexagonal blind hole is formed in the center of the surface of the T-shaped sealing plug.
Preferably, in the acoustic characteristic detection system for the fabric tube material, the lower plate surface of the T-shaped sealing plug and the lower plate surface of the fastening ring are both provided with a sealing ring mounting groove and a third sealing ring is mounted in the sealing ring mounting groove, and the third sealing ring of the T-shaped sealing plug is in contact sealing with the third sealing ring of the inner extension plate of the fastening ring when the T-shaped sealing plug is mounted.
Preferably, in the system for detecting the acoustic characteristics of the fabric tube material, a plurality of microphone mounting holes are formed in the surface of the T-shaped sealing plug, and the microphone is mounted in each microphone mounting hole.
Preferably, a fabric tube material acoustic characteristic detecting system, the outer face position that the installation apron is located the fabric ring that awaits measuring is provided with a plurality ofly fastening seal assembly, power amplifier, megaphone integrated form are installed in the sound source cabin, the signal source with the detachable installation in sound source cabin.
Preferably, in the system for detecting the acoustic characteristics of the fabric tube material, the frequency of the sound signal emitted by the signal source is 100HZ to 3000 HZ.
Preferably, in the acoustic characteristic detection system for the fabric tube material, the ratio of the diameter of the fabric tube to be detected to the inner diameter of the fabric installation cabin is (1: 2) - (1): 3.
compared with the prior art, the utility model relates to a fabric tube material acoustic characteristic detecting system advantage as follows:
(1) the fabric tube with the highest selective price ratio is produced in batches by detecting the acoustic characteristics of the fabric tubes produced by different processes;
(2) sealing rings are arranged at multiple positions in the fabric pipe installation module, so that the sealing performance is improved, the internal and external doping of sound signals is avoided, and the accuracy of acoustic detection is improved;
(3) the acoustic performance of the fabric tube is obtained through the difference of microphone signals on the inner side and the outer side of the fabric tube, the collection quantity of sound signals is increased through the installation of a plurality of microphones on the inner side and the outer side, the numerical values with sudden change of data and larger errors can be deleted conveniently, and the accuracy of acoustic detection is further improved;
(4) the traditional plug-in mounting mode of the microphone is changed into a mounting mode of fastening a sealing component, so that the microphone is high in mounting and fastening performance and good in sealing performance.
Drawings
The embodiments are further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic connection diagram of a system for detecting acoustic properties of a fabric tube material according to the present invention;
fig. 2 is a schematic view of the overall structure of a fabric tube installation module according to the present invention;
fig. 3 is a schematic cross-sectional view of a fabric tube installation module according to the present invention;
fig. 4 is a schematic view of the overall structure of the fastening and sealing assembly according to the present invention;
FIG. 5 is a schematic cross-sectional view of a fastening seal assembly in accordance with the present invention;
the specific structure corresponding to the number is as follows:
the sound source cabin comprises a fabric installation cabin 1, an installation cabin 11, an installation cover plate 12, a sound source cabin 2, a connecting bridge 3, a first sealing ring 31, a second sealing ring 32, a T-shaped sealing plug 41, a limiting rod 411, a hexagonal blind hole 412, a fastening ring 42, a fastening groove 421, an installation groove 422, a position avoiding cavity 423 and a microphone 5,
the following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Specific embodiment example 1:
a textile tube material acoustic property detection system comprising: the fabric tube detection device comprises a signal source, a power amplifier, loudspeakers, a fabric tube installation module, microphones, an acquisition module, an acoustic analysis module and a display module, wherein the signal source, the power amplifier and the loudspeakers are sequentially connected, fabric tubes to be detected are installed in the fabric tube installation module, the microphones comprise at least two microphones, the microphones are installed in the fabric tube installation module and are respectively located on the inner side and the outer side of each fabric tube, and the microphones, the acquisition module, the acoustic analysis module and the display module are sequentially connected.
Optionally, the frequency of the sound signal emitted by the signal source is 200HZ, 600HZ, 1000HZ or 2000 HZ.
Specific embodiment example 2:
a fabric pipe installation module in concrete embodiment 1, including fabric installation cabin 1, sound source cabin 2, fabric installation cabin 1, sound source cabin 2 set up from top to bottom and the inner chamber intercommunication just through connecting 3 body coupling of bridge, fabric installation cabin 1 includes installation cabin 11, installation apron 12 with 11 screw fixation of installation apron, installation apron 12 the lower face of sound source cabin 2 the lower face of board all processes has the fabric pipe mounting groove, and the terminal surface is arranged respectively about the fabric pipe that awaits measuring in the fabric pipe mounting groove.
Wherein, install first sealing washer 31 in the fabric pipe mounting groove of face under the installation apron 12, face under the sound source cabin 2 install second sealing washer 32 in the fabric pipe mounting groove.
Optionally, the power amplifier and the loudspeaker are integrally installed in the sound source cabin 2, and the signal source is detachably installed in the sound source cabin 2, so that sound sources with different frequencies can be replaced conveniently.
Specific embodiment example 3:
in a fabric tube mounting module of the type described in embodiment 2, the microphone is removably assembled to the mounting cup 12 by a fastening seal assembly.
Specifically, the fastening sealing assembly comprises a T-shaped sealing plug 41 and a fastening ring 42, a limiting rod 411 is arranged on the outer annular surface of the T-shaped sealing plug 41, a fastening groove 421 and a mounting groove 422 are formed on the annular surface of the fastening ring 42, the upper end of the mounting groove 422 is communicated with the upper end surface of the fastening ring 42, the lower end of the mounting groove 422 is communicated with the fastening groove 421, a mounting hole is formed in the plate surface of the mounting cover plate 12, the fastening ring 42 is welded on the inner wall of the mounting hole, the upper end of the fastening ring 42 is lower than the upper plate surface of the mounting cover plate 12, a position avoiding cavity 423 for rotatably avoiding the limiting rod 411 is formed in the mounting hole, the limiting rod 411 of the T-shaped sealing plug 41 enters the fastening groove 421 through the mounting groove 422, and the position of the limiting rod 411 in the fastening groove 421 is changed by rotating the limiting rod 411, so that the T-shaped sealing plug 41 is lifted; when the T-shaped sealing plug 41 is completely installed, the limiting rod 411 is located at the lowest position in the fastening groove 421, the upper plate surface of the T-shaped sealing plug 41 is flush with the upper plate surface of the installation cover plate 12, and the lower end surface of the T-shaped sealing plug 41 is in contact with the plate surface of the fastening ring 42; the casing of the microphone 5 is fixedly installed in the microphone installation hole of the T-shaped sealing plug 41, and the lower end of the microphone 5 passes through the hole on the lower end face of the fastening ring 42.
Further, a hexagonal blind hole 412 is formed in the center of the plate surface of the T-shaped sealing plug 41, so that the T-shaped sealing plug 41 can be conveniently rotated by a tool.
Further, the lower plate surface of the T-shaped sealing plug 41 and the bottom plate surface of the fastening ring 42 are both processed with sealing ring mounting grooves, and third sealing rings 33 are mounted in the sealing ring mounting grooves, and when the T-shaped sealing plug 41 is mounted, the third sealing rings 33 of the T-shaped sealing plug 41 and the third sealing rings 33 of the inner extension plate of the fastening ring 42 are in contact sealing.
Optionally, the ratio of the diameter of the fabric tube to be measured to the inner diameter of the fabric installation compartment 1 is 1:2 or 1: 3 (for example, the diameter of the fabric tube to be measured is 50mm, and the straight inner diameter of the fabric installation chamber 1 is 100mm or 120 mm), the ratio of the volume of the fabric tube to the volume of the fabric installation chamber 1 can be neither too large nor too small, otherwise, the acoustic parameter change is distorted, and the measured data is inaccurate.
Specific embodiment example 4:
on the basis of the specific embodiment 3, 2 microphone mounting holes are processed on the surface of the T-shaped sealing plug 41, and the microphones 5 are mounted in the microphone mounting holes.
Optionally, 3 fastening and sealing assemblies are arranged on the surface of the mounting cover plate 12 outside the fabric ring to be tested. 3 of the fastening and sealing assemblies are arranged at equal angles around a circle.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A textile tube material acoustic property detection system, characterized by: including signal source, power amplifier, megaphone, fabric pipe installation module, microphone, collection module, acoustic analysis module, display module, signal source, power amplifier, megaphone connect gradually, and the fabric pipe that awaits measuring is installed in the fabric pipe installation module, the microphone includes two at least, the microphone is installed in the fabric pipe installation module and be located respectively the inside and outside both sides of fabric pipe, microphone, collection module, acoustic analysis module, display module connect gradually.
2. The acoustic property detection system of a textile tube material of claim 1, wherein: fabric pipe installation module includes fabric installation cabin, sound source cabin, fabric installation cabin, sound source cabin set up from top to bottom and inner chamber intercommunication and through connecting bridge body coupling, the fabric installation cabin is including installation cabin, installation apron, the installation apron with installation apron screw fixation, the lower face of installation apron the lower facial features of sound source cabin has all processed the fabric pipe mounting groove, and the fabric pipe up-and-down terminal surface that awaits measuring is arranged in respectively in the fabric pipe mounting groove.
3. The acoustic property detection system of a textile tube material of claim 2, wherein: a first sealing ring is installed in a fabric pipe installing groove of the lower plate surface of the installing cover plate, and a second sealing ring is installed in the fabric pipe installing groove of the lower plate surface of the sound source cabin.
4. The acoustic property detection system of a textile tube material of claim 2, wherein: the microphone is detachably assembled with the mounting cover plate through a fastening sealing assembly; the fastening sealing assembly comprises a T-shaped sealing plug and a fastening ring, a limiting rod is arranged on the outer ring surface of the T-shaped sealing ring, a fastening groove and a mounting groove are formed in the ring surface of the fastening ring, the upper end of the mounting groove is communicated with the upper end surface of the fastening ring, the lower end of the mounting groove is communicated with the fastening groove, a mounting hole is formed in the plate surface of the mounting cover plate, the fastening ring is welded on the inner wall of the mounting hole, the upper end of the fastening ring is lower than the upper plate surface of the mounting cover plate, a position avoiding cavity for the limiting rod to rotate and avoid is formed in the mounting hole, the limiting rod of the T-shaped sealing plug enters the fastening groove through the mounting groove, and the position of the limiting rod in the fastening groove is changed through rotating the limiting rod so that the T-shaped sealing plug is lifted; when the T-shaped sealing plug is installed completely, the limiting rod is located at the lowest position in the fastening groove, and the upper plate surface of the T-shaped sealing plug is flush with the upper plate surface of the installation cover plate; and the shell of the microphone is fixedly arranged in the microphone mounting hole of the T-shaped sealing plug, and the lower end of the shell of the microphone penetrates through the hole on the lower plate surface of the fastening ring.
5. The acoustic property detection system of a textile tube material according to claim 4, wherein: and a hexagonal blind hole is formed in the center of the plate surface of the T-shaped sealing plug.
6. The acoustic property detection system of a textile tube material of claim 4, wherein: the lower plate surface of the T-shaped sealing plug and the lower plate surface of the fastening ring are all provided with sealing ring mounting grooves, third sealing rings are mounted in the sealing ring mounting grooves, and the third sealing rings of the T-shaped sealing plugs are in contact sealing with the third sealing rings of the fastening ring inner extension plate when the T-shaped sealing plugs are mounted.
7. The acoustic property detection system of a textile tube material of claim 4, wherein: a plurality of microphone mounting holes are formed in the surface of the T-shaped sealing plug, and each microphone mounting hole is internally provided with a microphone.
8. The acoustic property detection system of a textile tube material of claim 4, wherein: the face position that the installation apron is located the fabric ring that awaits measuring is provided with a plurality ofly fastening seal assembly, power amplifier, megaphone integrated form are installed in the sound source cabin, the signal source with the detachable installation in sound source cabin.
9. The acoustic property detection system of a textile tube material of claim 1, wherein: the frequency of the sound signal emitted by the signal source is 100 HZ-3000 HZ.
10. The acoustic property detection system of a textile tube material of claim 2, wherein: the ratio of the diameter of the fabric pipe to be measured to the inner diameter of the fabric installation cabin is 1: 2-1: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221294631.5U CN217484261U (en) | 2022-05-27 | 2022-05-27 | Fabric pipe material acoustic characteristic detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221294631.5U CN217484261U (en) | 2022-05-27 | 2022-05-27 | Fabric pipe material acoustic characteristic detection system |
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| Publication Number | Publication Date |
|---|---|
| CN217484261U true CN217484261U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221294631.5U Active CN217484261U (en) | 2022-05-27 | 2022-05-27 | Fabric pipe material acoustic characteristic detection system |
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| CN (1) | CN217484261U (en) |
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2022
- 2022-05-27 CN CN202221294631.5U patent/CN217484261U/en active Active
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