CN107906312A - A kind of erecting device for the test of automobile spectrogram parameter - Google Patents
A kind of erecting device for the test of automobile spectrogram parameter Download PDFInfo
- Publication number
- CN107906312A CN107906312A CN201711225766.XA CN201711225766A CN107906312A CN 107906312 A CN107906312 A CN 107906312A CN 201711225766 A CN201711225766 A CN 201711225766A CN 107906312 A CN107906312 A CN 107906312A
- Authority
- CN
- China
- Prior art keywords
- bar
- test
- automobile
- erecting device
- supporting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/041—Allowing quick release of the apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
Abstract
The invention discloses a kind of erecting device for the test of automobile spectrogram parameter, including transverse bar, vertical bar, supporting rod and microphone arm, the transverse bar is connected in vertical bar, post upper is connected with vertical bar lower end, the microphone arm is slidably connected on transverse bar, and equipped with the mounting portion for being used to install microphone, the transverse bar, vertical bar and supporting rod are retractable structure.It is capable of the locus of quick regulation microphone, saves the time, improves spectrogram parameter testing efficiency.
Description
Technical field
The present invention relates to automobile spectrogram parameter technology, and in particular to a kind of installation dress for the test of automobile spectrogram parameter
Put.
Background technology
Comfort requirement of the current people to automobile is higher and higher, and comfort has become the important finger of car mass control
One of mark, and internal car noise is an important factor for influencing comfort.In order to reduce and control internal car noise, it is necessary to which research is in-car empty
The acoustic characteristic of chamber.By measuring automobile cavity acoustic mode, the acoustic mode frequency and Mode Shape of in-car cavity, energy are obtained
Solution car inside acoustic pressure distribution much of that, on the one hand can instruct vehicle body design, make the vibration frequency and cavity of reinforcing beam or metal plate
Mode staggers certain frequency, so as to reduce coupling and avoid the generation of roar；On the other hand, it is limited by establishing the operatic tunes
Meta-model, the vibration shape of the cavity acoustic mode with testing out is modified with frequency, so as to improve finite element prediction interior roar
The order of accuarcy of sound, this has very important significance for vehicle positive development.Although industry uses low frequency volume sound mostly at present
Source and microphone test spectrogram parameter, but there is presently no a kind of corresponding effective microphone installation dress
Put, so that needing to repeat mobile fixed microphone during the test, process is cumbersome, loses time, and greatly affected survey
Try efficiency.
The content of the invention
The object of the present invention is to provide a kind of erecting device for the test of automobile spectrogram parameter, it being capable of quick regulation biography
The locus of sound device, saves the time, improves spectrogram parameter testing efficiency.
It is of the present invention for automobile spectrogram parameter test erecting device, including transverse bar, vertical bar, supporting rod and
Microphone arm, the transverse bar are connected in vertical bar, and post upper is connected with vertical bar lower end, the microphone arm
It is slidably connected on transverse bar, and equipped with the mounting portion for being used to install microphone, the transverse bar, vertical bar and supporting rod are
Retractable structure.
Further, the supporting rod lower end is fixedly connected on base.Improve the stability and erecting device of supporting rod
Reliability.
Further, the vertical bar and the quantity of supporting rod are two, and transverse bar both ends are connected with two vertical bars respectively.
The connectivity robustness of transverse bar is improved, avoids it from vibrating during the work time, influences the accuracy of spectrogram parameter test, is led to
Cross and transverse bar both ends are connected in two vertical bars, so as to fulfill the firm connection of transverse bar.
Further, the quantity of the transverse bar is adjusted according to actual test demand, is connected in parallel to two vertical bars
Between.According to the difference of spectrogram parameter measuring accuracy requirement, the quantity of transverse bar can be suitably increased or decreased, correspondingly changes and passes
The density of sound device stent, and then meet different spectrogram parameter measuring accuracy requirements, expand the application range of the erecting device.
Further, the quantity of the transverse bar is two, and two transverse bars and two vertical bars form telescopic rectangle
Frame, the rectangular frame are fixed on two post uppers.
Further, the quantity of microphone arm is adjusted according to actual test demand on the transverse bar.In order to enable
Microphone can measure in the operatic tunes acoustic pressure of diverse location in the horizontal at the same time, so as to reduce the number of test, improve test
Efficiency,
Further, the quantity of microphone arm is five on the transverse bar.
Further, detachably connected by connector between the transverse bar and vertical bar, between vertical bar and supporting rod
Connect.The setting of connector causes structure rationalization, while is easy to connection of the transverse bar with vertical bar, vertical bar and supporting rod with tearing open
Unload.
Further, the microphone arm includes bolt, nut and clamp, and the bolt is made of bolt head and screw rod,
Nut coordinates with screw rod, and clamp is removably connected to screw rod end and for installing microphone；The transverse bar is rectangular tube, under
Side is equipped with the sliding slot with bolt head corresponding matching, passes through nut check or pine oil microphone arm.Pass through the spiral shell of microphone arm
Sliding slot corresponding matching on the downside of bolt head and transverse bar, realizes being slidably connected for microphone arm and transverse bar, by screwing in upwards
Nut, realizes the locking of microphone arm, screws out nut downwards, realizes the pine oil of microphone arm, is adjusted according to testing requirement
The position of microphone arm on the transverse bar.
Further, the adjustable range of the transverse bar is 0.8 ~ 1.5m, and the adjustable range of the vertical bar is 0.2 ~ 0.4m,
The adjustable range of the supporting rod is 0.4 ~ 1.0m.
Compared with prior art, the present invention adjusts sliding transverse bar by adjusting the length of supporting rod, vertical bar and transverse bar
On microphone arm position, and then adjust microphone locus, disclosure satisfy that different automobile types spectrogram parameter test
Demand, improves spectrogram parameter testing efficiency.By setting multiple transverse bars between two vertical bars, according to survey on transverse bar
Examination demand arranges multiple microphone arms, it is possible to increase the accuracy of spectrogram parameter test, carries out not according to different testing requirements
Same arrangement, expands the application range of the erecting device.And simple in structure, of low cost, functional reliability is high, durability
It is good.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of microphone arm of the present invention；
Fig. 3 is the connection diagram of microphone arm and transverse bar of the present invention.
In figure, 1-transverse bar, the 11-the first positioning pin, 2-vertical bar, the 21-the second positioning pin, 3-supporting rod, 31-
Locking nut, 4-microphone arm, 41-bolt head, 42-screw rod, 43-nut, 44-clamp, 5-base, 6-connection
Part, 7-microphone.
Embodiment
Elaborate below in conjunction with the accompanying drawings to invention.
Referring to Fig. 1 to Fig. 3, the shown erecting device for being used for the test of automobile spectrogram parameter, including transverse bar 1, vertical bar
2nd, supporting rod 3 and microphone arm 4, the quantity of the transverse bar, vertical bar and supporting rod is two, 1 both ends of transverse bar
It is connected respectively with two vertical bars 2,3 upper end of supporting rod is connected with 2 lower end of vertical bar, and 3 lower end of supporting rod is fixedly connected on
On base 5.It is detachably connected between the transverse bar 1 and vertical bar 2, between vertical bar 2 and supporting rod 3 by connector 6,
The connector is angle coupling, T connector or yi word pattern connector, is made choice according to different connection requirements, passes through connector
Transverse bar 1 and vertical bar 2, vertical bar 2 and supporting rod 3 are connected, it is easy to disassemble, it is easy for installation.The microphone arm 4, which slides, to be connected
It is connected on transverse bar 1, quantity is adjusted according to actual test demand, it is preferable that microphone arm 4 on a transverse bar 1
Quantity is five, if spectrogram parameter measuring accuracy is more demanding, can use more microphone arm 4, if spectrogram parameter is tested
Required precision is relatively low, can use less microphone arm 4.The transverse bar 1, vertical bar 2 and supporting rod 3 are scalable knot
Structure, the adjustable range of transverse bar 1 are 0.8 ~ 1.5m, and the adjustable range of vertical bar 2 is 0.2 ~ 0.4m, the adjustable range of supporting rod 3
For 0.4 ~ 1.0m, the length of corresponding transverse bar, vertical bar and supporting rod is adjusted according to different automobile types, different testing requirements, is made
Obtain the device have the advantages that it is versatile.Transverse bar 1 realizes that locking or pine oil, vertical bar 2 pass through by the first positioning pin 11
Second positioning pin 21 realizes locking or pine oil, and supporting rod 3 realizes locking or pine oil, first positioning pin by locking nut 21
11st, the second positioning pin 21 and locking nut 31 are locking member common in retractable structure field.
The microphone arm 4 includes bolt, nut 43 and clamp 44, and the bolt is by 42 groups of bolt head 41 and screw rod
Into nut 43 coordinates with screw rod 42, and clamp 44 is removably connected to 42 end of screw rod and for installing microphone 7；The transverse direction
Bar 1 is rectangular tube, and downside is equipped with the sliding slot with 41 corresponding matching of bolt head, is locked by nut 43 or pine oil microphone arm.
During test, erecting device is placed on automotive floor panel by base 4, adjusts transverse bar 1, vertical bar 2 and support
The length of bar 3, to adapt to the size of test vehicle.Then a certain number of microphones 7 are passed through according to appropriate spacing transaudient
Device stent 4 is fixed in the sliding slot of transverse bar 1, and the quantity of microphone 7 is determined according to measuring accuracy.Pacified again by moving integrally
Assembling device and adjust the height of supporting rod 3 and change the point position of microphone 7, realize that automobile spectrogram parameter is tested.
Claims (10)
- A kind of 1. erecting device for the test of automobile spectrogram parameter, it is characterised in that：Including transverse bar（1）, vertical bar（2）、 Supporting rod（3）And microphone arm（4）, it is described transverse direction boom end be connected with vertical bar, vertical bar lower end and post upper company Connecing, the microphone arm is slidably connected on transverse bar, and equipped with for installing microphone（7）Mounting portion, the transverse direction Bar, vertical bar and supporting rod are retractable structure.
- 2. the erecting device according to claim 1 for the test of automobile spectrogram parameter, it is characterised in that：The supporting rod （3）Lower end is fixedly connected on base（5）On.
- 3. the erecting device according to claim 1 or 2 for the test of automobile spectrogram parameter, it is characterised in that：It is described perpendicular To bar（2）And supporting rod（3）Quantity be two, transverse bar（1）Both ends are connected with two vertical bars respectively.
- 4. the erecting device according to claim 3 for the test of automobile spectrogram parameter, it is characterised in that：The transverse bar （1）Quantity be adjusted according to actual test demand, be connected in parallel to two vertical bars（2）Between.
- 5. the erecting device according to claim 4 for the test of automobile spectrogram parameter, it is characterised in that：The transverse bar （1）Quantity be two, two transverse bars and two vertical bars（2）Telescopic rectangular frame is formed, the rectangular frame is consolidated Due to two supporting rods（3）Upper end.
- 6. the erecting device according to claim 1 or 2 for the test of automobile spectrogram parameter, it is characterised in that：The horizontal stroke To bar（1）Upper microphone arm（4）Quantity be adjusted according to actual test demand.
- 7. the erecting device according to claim 6 for the test of automobile spectrogram parameter, it is characterised in that：The transverse bar （1）Upper microphone arm（4）Quantity be five.
- 8. the erecting device according to claim 1 or 2 for the test of automobile spectrogram parameter, it is characterised in that：The horizontal stroke To bar（1）With vertical bar（2）Between, vertical bar（2）With supporting rod（3）Between pass through connector（6）It is detachably connected.
- 9. the erecting device according to claim 1 or 2 for the test of automobile spectrogram parameter, it is characterised in that：The biography Sound device stent（4）Including bolt, nut（43）And clamp（44）, the bolt is by bolt head（41）And screw rod（42）Composition, spiral shell Female to coordinate with screw rod, clamp is removably connected to screw rod end and for installing microphone（7）；The transverse bar（1）For rectangle Pipe, downside are equipped with the sliding slot with bolt head corresponding matching, pass through nut check or pine oil microphone arm.
- 10. the erecting device according to claim 1 or 2 for the test of automobile spectrogram parameter, it is characterised in that：The horizontal stroke To bar（1）Adjustable range be 0.8 ~ 1.5m, the vertical bar（2）Adjustable range be 0.2 ~ 0.4m, the supporting rod（3）'s Adjustable range is 0.4 ~ 1.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225766.XA CN107906312A (en) | 2017-11-29 | 2017-11-29 | A kind of erecting device for the test of automobile spectrogram parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225766.XA CN107906312A (en) | 2017-11-29 | 2017-11-29 | A kind of erecting device for the test of automobile spectrogram parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107906312A true CN107906312A (en) | 2018-04-13 |
Family
ID=61849421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711225766.XA Pending CN107906312A (en) | 2017-11-29 | 2017-11-29 | A kind of erecting device for the test of automobile spectrogram parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107906312A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060070445A1 (en) * | 2004-09-22 | 2006-04-06 | Frank Juber | Mobile test stand for determining the sound insulation or insertion loss of a test object |
| CN103511802A (en) * | 2013-09-06 | 2014-01-15 | 吉林大学 | Microphone support for in-vehicle acoustic mode measurement and testing |
| CN204142359U (en) * | 2014-08-22 | 2015-02-04 | 无锡吉兴汽车声学部件科技有限公司 | The microphone stationary installation of air-conditioning noise test in Automobile |
| CN104677644A (en) * | 2015-02-13 | 2015-06-03 | 福建工程学院 | Novel automobile part modal test rack |
| CN206161149U (en) * | 2016-10-31 | 2017-05-10 | 广州汽车集团股份有限公司 | A microphone fixing device for $putting in order test of car acoustics |
-
2017
- 2017-11-29 CN CN201711225766.XA patent/CN107906312A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060070445A1 (en) * | 2004-09-22 | 2006-04-06 | Frank Juber | Mobile test stand for determining the sound insulation or insertion loss of a test object |
| CN103511802A (en) * | 2013-09-06 | 2014-01-15 | 吉林大学 | Microphone support for in-vehicle acoustic mode measurement and testing |
| CN204142359U (en) * | 2014-08-22 | 2015-02-04 | 无锡吉兴汽车声学部件科技有限公司 | The microphone stationary installation of air-conditioning noise test in Automobile |
| CN104677644A (en) * | 2015-02-13 | 2015-06-03 | 福建工程学院 | Novel automobile part modal test rack |
| CN206161149U (en) * | 2016-10-31 | 2017-05-10 | 广州汽车集团股份有限公司 | A microphone fixing device for $putting in order test of car acoustics |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |
|
| RJ01 | Rejection of invention patent application after publication |