CN208691565U - A kind of automobile bottom backplate impact noise test device - Google Patents
A kind of automobile bottom backplate impact noise test device Download PDFInfo
- Publication number
- CN208691565U CN208691565U CN201821085676.5U CN201821085676U CN208691565U CN 208691565 U CN208691565 U CN 208691565U CN 201821085676 U CN201821085676 U CN 201821085676U CN 208691565 U CN208691565 U CN 208691565U
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- China
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- bottom backplate
- automobile bottom
- impact
- tested
- positioning seat
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Abstract
The utility model discloses a kind of automobile bottom backplate impact noise test devices, belong to acoustic part of automobile measuring technology, it includes fixed frame, positioning seat, impact part and noise collecting part, the positioning seat is assemblied on the fixed frame, automobile bottom backplate to be tested is fixed on the positioning seat, the impact part impact automobile bottom backplate to be tested generates impact noise, and whether the periphery setting of the automobile bottom backplate to be tested meets the noise collecting part of standard for testing impact noise.Above-mentioned automobile bottom backplate impact noise test device is not only simple in structure, is compact, is reasonable；And can be accurate and visual the impact noise of test automobile bottom backplate improved work efficiency so that whether accurate judgement automobile bottom backplate impact noise qualified.
Description
Technical field
The utility model belongs to acoustic part of automobile measuring technology, surveys more particularly, to a kind of automobile bottom backplate impact noise
Trial assembly is set.
Background technique
Automobile bottom backplate is the exterior trimming parts of first of contact nature circle, impact resistance noise of major vehicle factor to bottom backplate
Can have very big requirement, it is therefore desirable to its impact resistance noise performance will be tested, and current test mode generally with
The subjectivity that people takes for a trial in the car evaluates the acoustical behavior of bottom backplate, but does not have standardized test equipment.There are tests
Disadvantage of the data error greatly with test inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of automobile bottom backplate impact noise test devices, to solve the prior art
Middle automobile bottom backplate impact resistance noise performance test has that test data error is big and tests inconvenience.
For this purpose, the utility model uses following technical scheme:
A kind of automobile bottom backplate impact noise test device comprising fixed frame, positioning seat, impact part and noise are collected
Component, wherein the positioning seat is assemblied on the fixed frame, and automobile bottom backplate to be tested is fixed on the positioning seat, institute
It states the impact part impact automobile bottom backplate to be tested and generates impact noise, the periphery setting of the automobile bottom backplate to be tested
Whether meet the noise collecting part of standard for testing impact noise.
Particularly, the impact part is located at the top of the automobile bottom backplate to be tested, and impact part leans on the weight of itself
Power impacts automobile bottom backplate to be tested.
Particularly, the positioning seat is set on the fixed frame with being able to rotate, be provided on the fixed frame for pair
The locking member of positioning seat locking, in order to adjust the angle of positioning seat and horizontal direction, to realize in different inclinations
The static impact noise of the automobile bottom backplate to be tested of angle is tested.
Particularly, the positioning seat is articulated on the fixed frame with being able to rotate, and it is fixed that driving is provided on the fixed frame
The rotation drive device of position seat rotation, when test, rotation drive device drives positioning seat rotation, inclines to realize in difference
The continuous impact noise test of the dynamic of the automobile bottom backplate to be tested of rake angle.
Particularly, the positioning seat is fixed on the fixed frame, and the impact part is impacted with different angle of attack
The automobile bottom backplate to be tested.
Particularly, the positioning seat includes bottom plate and steel framework, and the automobile bottom backplate to be tested is fixed on the bottom plate,
The steel framework has middle opening and its periphery for being fixed on the bottom plate.
Particularly, the shape of the automobile bottom backplate to be tested is identical as the shape of middle opening, and the face of middle opening
Product is not less than the area of the automobile bottom backplate to be tested.
Particularly, the impact part uses steel ball.
Particularly, the noise collecting part uses microphone.
Particularly, the fixed frame is mutually spliced by PVC round tube.
The beneficial effects of the utility model are, the automobile bottom backplate impact noise test device is not compared with prior art
Only structure is simple, compact, reasonable；And can be accurate and visual test automobile bottom backplate impact noise, thus accurate judgement
Whether automobile bottom backplate impact noise is qualified, improves work efficiency.
Detailed description of the invention
Fig. 1 is the structural representation for the automobile bottom backplate impact noise test device that specific embodiment of the present invention provides
Figure；
Fig. 2 is the knot of the bottom plate for the automobile bottom backplate impact noise test device that specific embodiment of the present invention provides
Structure schematic diagram；
Fig. 3 is the knot of the steel framework for the automobile bottom backplate impact noise test device that specific embodiment of the present invention provides
Structure schematic diagram.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Shown in please referring to Fig.1 to Fig.3, in the present embodiment, a kind of automobile bottom backplate impact noise test device includes fixing
Frame 1, positioning seat 2, impact steel ball 3 and microphone 4, fixed frame 1 are spliced by PVC material round tube, diameter 25mm, height
2m.The diameter for impacting steel ball 3 is 8mm, weight 2.08g.Positioning seat 2 and horizontal direction are in 45 ° of the bottom for being fixed on fixed frame 1
Portion, and positioning seat 2 includes bottom plate 20 and steel framework 21, bottom plate 20 is the square of 300*300*1.6mm, and centre is 190*190mm
For pasting the exemplar fixed area 22 of automobile bottom backplate to be tested, steel framework 21 is the lightweight steel construction material of 300*300*20mm
Material, centre offer opening 23 of the 200*200mm for exemplar fitting.Bottom plate 20 is attached with steel framework 21 with bolt and nut,
Its bolt is M8-50L, torque 14.7N.m.Impact steel ball 3 is located at the surface 2m height of automobile bottom backplate to be tested, Mike
Wind 4 is set to the periphery of automobile bottom backplate to be tested, for testing whether impact noise meets standard.
In test, the bottom plate 20 for installing automobile bottom backplate to be tested and steel framework 21 are fixed on fixed frame 1, will be rushed
Steel ball 3 is hit to fall from the high perpendicular of 2m, whether the impact noise that automobile bottom backplate is tested with microphone 4 meets standard, when
So the angle of attack of impact steel ball 3, which also can according to need, is changed.
Further, the setting form of positioning seat 2 can also have following two form:
1) positioning seat 2 is set on the fixed frame 1 with being able to rotate, and is provided on fixed frame 1 for locking to positioning seat 2
Locking member, form is arranged in this kind, and the angle that can adjust positioning seat 2 and horizontal direction as needed passes through locking member again
Fixed frame 1 is fixed, to realize the static impact noise to the automobile bottom backplate to be tested in differing tilt angles
Test.
2) positioning seat 2 is articulated on fixed frame 1 with being able to rotate, and the rotation that driving positioning seat 2 rotates is provided on fixed frame 1
Driving device, when test, rotation drive device drives the reciprocating rotation in 180 ° of positioning seat 2, inclines to realize in difference
The continuous impact noise test of the dynamic of the automobile bottom backplate to be tested of rake angle.
Above embodiments only elaborate the basic principles and features of the present invention, and the utility model is not by above-mentioned example
Limitation, on the premise of not departing from the spirit and scope of the utility model, the present invention has various changes and changes, these changes
Change and change is fallen within the scope of the claimed invention.The utility model requires protection scope is wanted by appended right
Ask book and its equivalent thereof.
Claims (10)
1. a kind of automobile bottom backplate impact noise test device, which is characterized in that it includes fixed frame, positioning seat, impact part
With noise collecting part, the positioning seat is assemblied on the fixed frame, and automobile bottom backplate to be tested is fixed on the positioning seat
On, the impact part impact automobile bottom backplate to be tested generates impact noise, the automobile bottom backplate to be tested it is outer
Enclose the noise collecting part whether setting meets standard for testing impact noise.
2. automobile bottom backplate impact noise test device according to claim 1, which is characterized in that the impact part position
In the top of the automobile bottom backplate to be tested, impact part leans on the gravitational thrusts automobile bottom backplate to be tested of itself.
3. automobile bottom backplate impact noise test device according to claim 2, which is characterized in that the positioning seat can turn
It is set on the fixed frame dynamicly, the locking member for locking to positioning seat is provided on the fixed frame.
4. automobile bottom backplate impact noise test device according to claim 2, which is characterized in that the positioning seat can turn
It is articulated on the fixed frame dynamicly, the rotation drive device of driving positioning seat rotation is provided on the fixed frame, when test,
Rotation drive device drives positioning seat rotation.
5. automobile bottom backplate impact noise test device according to claim 2, which is characterized in that the positioning seat is fixed
In on the fixed frame, the impact part impacts the automobile bottom backplate to be tested with different angle of attack.
6. automobile bottom backplate impact noise test device according to claim 1-5, which is characterized in that described fixed
Position seat includes bottom plate and steel framework, and the automobile bottom backplate to be tested is fixed on the bottom plate, and the steel framework has middle opening
And its periphery for being fixed on the bottom plate.
7. automobile bottom backplate impact noise test device according to claim 6, which is characterized in that the automobile to be tested
The shape of bottom backplate and the shape of middle opening are identical, and the area of middle opening is not less than the automobile bottom backplate to be tested
Area.
8. automobile bottom backplate impact noise test device according to claim 1, which is characterized in that the impact part is adopted
Use steel ball.
9. automobile bottom backplate impact noise test device according to claim 1, which is characterized in that the noise collection portion
Part uses microphone.
10. automobile bottom backplate impact noise test device according to claim 1, which is characterized in that the fixed frame by
PVC round tube is mutually spliced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821085676.5U CN208691565U (en) | 2018-07-09 | 2018-07-09 | A kind of automobile bottom backplate impact noise test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821085676.5U CN208691565U (en) | 2018-07-09 | 2018-07-09 | A kind of automobile bottom backplate impact noise test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208691565U true CN208691565U (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821085676.5U Active CN208691565U (en) | 2018-07-09 | 2018-07-09 | A kind of automobile bottom backplate impact noise test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683983A (en) * | 2018-07-09 | 2018-10-19 | 无锡吉兴汽车声学部件科技有限公司 | A kind of automobile bottom backplate impact noise test device |
-
2018
- 2018-07-09 CN CN201821085676.5U patent/CN208691565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683983A (en) * | 2018-07-09 | 2018-10-19 | 无锡吉兴汽车声学部件科技有限公司 | A kind of automobile bottom backplate impact noise test device |
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