CN203479638U - Test tool for recovery rate of elasticity of compression of vehicle sound absorption cotton - Google Patents
Test tool for recovery rate of elasticity of compression of vehicle sound absorption cotton Download PDFInfo
- Publication number
- CN203479638U CN203479638U CN201320547473.4U CN201320547473U CN203479638U CN 203479638 U CN203479638 U CN 203479638U CN 201320547473 U CN201320547473 U CN 201320547473U CN 203479638 U CN203479638 U CN 203479638U
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- Prior art keywords
- absorbing sponge
- rosette
- elasticity
- response rate
- automobile
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- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 230000006835 compression Effects 0.000 title claims abstract description 33
- 238000007906 compression Methods 0.000 title claims abstract description 33
- 229920000742 Cotton Polymers 0.000 title abstract 7
- 238000010521 absorption reaction Methods 0.000 title abstract 7
- 238000011084 recovery Methods 0.000 title abstract 4
- 230000004044 response Effects 0.000 claims description 26
- 239000002184 metal Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a test tool for recovery rate of elasticity of compression of vehicle sound absorption cotton. The test tool comprises a metal disk and a balancing weight, wherein the metal disk is provided with air holes for ventilating a sound absorption cotton sample in testing. Compared with the prior art, the metal disk of the test tool is provided with the air holes, when the sound absorption cotton sample is compressed in testing, the air in the sound absorption cotton can be completely released through the air holes, so that the sound absorption cotton sample can be completely compressed so as to avoid affecting the test result of recovery rate of elasticity of compression in later calculation, and the test accuracy of recovery rate of elasticity of compression of the sound absorption cotton is improved.
Description
Technical field
The utility model belongs to the technical field of auto parts Performance Detection, and specifically, the utility model relates to a kind of automobile-used sound-absorbing sponge elasticity of compression response rate test fixture.
Background technology
Along with automobile consumer is more and more higher to car load NVH requirement, in order to promote car load NVH performance, use car internal damping acoustic damping materials more and more common.Sound-absorbing sponge is as a kind of new material, and with the feature such as its light weight, environmental protection and acoustical behavior be good, the popularity rate of using in car increases gradually.And in automobile-used sound-absorbing sponge properties detects, the quality of elasticity of compression response rate performance, has vital effect to part performance.
The method of at present sound-absorbing sponge elasticity of compression response rate test is, sound-absorbing sponge sample is put into beaker, rosette is directly pressed on sample, and then encloses the balancing weight of constant weight in the above.In process of the test, find, under certain environment temperature conditions, getting rusty easily appears in rosette, sound-absorbing sponge sample internal gas in compression can not discharge completely, and single metal disk takes, puts extremely inconvenient, and be there is to certain impact in elasticity of compression response rate test findings in subsequent calculations.If elasticity of compression response rate is bad, sound-absorbing sponge in use there will be gap spacious, even produces the phenomenons such as abnormal sound, and car load NVH performance is produced to certain impact.
Therefore, adopt the inspection vehicle sound-absorbing sponge elasticity of compression response rate that current apparatus and method can't be accurate, authentic and valid.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of automobile-used sound-absorbing sponge elasticity of compression response rate test fixture, to improve the detection accuracy of sound-absorbing sponge elasticity of compression response rate.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of automobile-used sound-absorbing sponge elasticity of compression response rate test fixture, comprise rosette and balancing weight, and rosette is provided with in when test and allows the ventilative bleeder vent of sound-absorbing sponge sample.
The circular hole of described bleeder vent for axially running through along described rosette.
The surface of described rosette is coated with antirust coat.
Described rosette is provided with for laying the support of described balancing weight.
This test fixture also comprises that pull bar is provided with for hooking the hook of described support for taking out the pull bar of described rosette.
Described support consists of two identical U-shaped plates of shape, two U-shaped plates parallel and take on the end face that is located at rosette that described rosette axis place plane is plane of symmetry symmetry, and the crown center position of U-shaped plate is provided with and allows described hook insert the breach that hooks support.
Described pull bar comprises holding rod and be vertically connected on two extension rods on holding rod, and the end of extension rod is provided with vertical bearing pin.
The utility model adopts technique scheme, compared with prior art, on the rosette of this test fixture, have bleeder vent, while compressing sound-absorbing sponge sample in test process, sound-absorbing sponge internal gas can discharge completely by bleeder vent, sound-absorbing sponge sample can be compressed completely, avoid in subsequent calculations, elasticity of compression response rate test findings being exerted an influence, improve the detection accuracy of sound-absorbing sponge elasticity of compression response rate.
Accompanying drawing explanation
Fig. 1 is the front view of the rosette of this test fixture;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the front view of the pull bar of this test fixture;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the front view of the balancing weight of this test fixture;
Mark in above-mentioned figure is: 1, rosette; 2, bleeder vent; 3, support; 4, breach; 5, holding rod; 6, extension rod; 7, bearing pin; 8, balancing weight.
Embodiment
As shown in Figures 1 to 5, a kind of automobile-used sound-absorbing sponge elasticity of compression response rate test fixture of the utility model, comprises rosette 1 and balancing weight 8, and balancing weight 8 is a circular block.In this test fixture, on rosette 1, be provided with in when test and allow the ventilative bleeder vent 2 of sound-absorbing sponge sample, while compressing sound-absorbing sponge sample in test process, sound-absorbing sponge internal gas can discharge completely by bleeder vent 2, sound-absorbing sponge sample can be compressed completely, avoid in subsequent calculations, elasticity of compression response rate test findings being exerted an influence, improve the detection accuracy of sound-absorbing sponge elasticity of compression response rate.
Specifically, bleeder vent 2 is for the circular hole axially running through along rosette 1, and on rosette 1, bleeder vent 2 starts to arrange from the center of rosette 1, and take center hole three circles are set as the center of circle.
Surface at rosette 1 is also coated with antirust coat, prevents that rosette 1 from getting rusty, and the elasticity of compression response rate test findings of sound-absorbing sponge is exerted an influence avoiding.
On rosette 1, be also provided with support 3, support 3 can facilitate picking and placeing of rosette 1, can also be for laying balancing weight 8.As shown in the figure, support 3 consists of two identical U-shaped plates of shape, and two U-shaped plates parallel and take on the end face that is located at rosette 1 that rosette 1 axis place plane is plane of symmetry symmetry.U-shaped plate is to consist of three sheet material welding, the two ends of U-shaped plate are welded on rosette 1, the crown center position of U-shaped plate is provided with the breach 4 that allows hook insert the rectangle that hooks support 3, and this breach 4 starts to extend to form towards the inside of sheet material from the side of U-shaped plate top sheet material.
This test fixture also comprises that one for taking out the pull bar of rosette 1, and pull bar is provided with for hooking the hook of support 3.As shown in the figure, this pull bar comprises holding rod 5 and is vertically connected on two extension rods that parallel 6 on holding rod 5, the end of extension rod 6 is respectively provided with a bearing pin vertical with extension rod 67, and bearing pin 7 and extension rod 6 are formed for hooking the hook of support 3, and bearing pin 7 hooks support 3 from the breach 4 of support 3.
This test fixture is tested vernier depth gauge by beaker and.When test, standard sound-absorbing sponge sample is placed in the beaker of prescribed level, then rosette 1 is placed on above sample, after sound-absorbing sponge compression is smooth, and then on support 3, put balancing weight 8 and proceed compression, under set point of temperature condition, place after the regular hour, beaker and whole test fixture are taken out together from temperature environment case, with vernier depth gauge, directly measure subsequently the thickness of sample, record d1; Then in beaker, take out balancing weight 8, and use pull bar to hook the taking-up rosette 1 of support 3 safety, allow the sample after test reply after the regular hour under set point of temperature condition, the test sample thickness line item d2 that goes forward side by side again, then, according to formula: (d2/d1) * 100% calculates, can draw the test result of the elasticity of compression response rate of multi-thickness sound-absorbing sponge under condition of different temperatures.
The advantage of this test fixture is: the sound-absorbing sponge that this cover frock can be used according to many moneys vehicle is different, the elasticity of compression response rate of sound-absorbing sponge for test carriage under various temperature condition.Consider that concrete behaviour in service, actual operability etc. have processed a set of frock in conjunction with car load design, guaranteed that automobile-used sound-absorbing sponge part material elasticity of compression response rate test can carry out smoothly, improving product performance verification ability.Have simple in structure easy to operately, safeguard easy to usely, processing cost is lower, multi-functional etc.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (7)
1. an automobile-used sound-absorbing sponge elasticity of compression response rate test fixture, comprises rosette and balancing weight, it is characterized in that: described rosette is provided with in when test and allows the ventilative bleeder vent of sound-absorbing sponge sample.
2. automobile-used sound-absorbing sponge elasticity of compression response rate test fixture according to claim 1, is characterized in that: the circular hole of described bleeder vent for axially running through along described rosette.
3. automobile-used sound-absorbing sponge elasticity of compression response rate test fixture according to claim 1 and 2, is characterized in that: the surface of described rosette is coated with antirust coat.
4. automobile-used sound-absorbing sponge elasticity of compression response rate test fixture according to claim 3, is characterized in that: described rosette is provided with for laying the support of described balancing weight.
5. automobile-used sound-absorbing sponge elasticity of compression response rate test fixture according to claim 4, is characterized in that: also comprise that pull bar is provided with for hooking the hook of described support for taking out the pull bar of described rosette.
6. automobile-used sound-absorbing sponge elasticity of compression response rate test fixture according to claim 5, it is characterized in that: described support consists of two identical U-shaped plates of shape, two U-shaped plates parallel and take on the end face that is located at rosette that described rosette axis place plane is plane of symmetry symmetry, and the crown center position of U-shaped plate is provided with and allows described hook insert the breach that hooks support.
7. automobile-used sound-absorbing sponge elasticity of compression response rate test fixture according to claim 6, is characterized in that: described pull bar comprises holding rod and be vertically connected on two extension rods on holding rod, and the end of extension rod is provided with vertical bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547473.4U CN203479638U (en) | 2013-09-04 | 2013-09-04 | Test tool for recovery rate of elasticity of compression of vehicle sound absorption cotton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547473.4U CN203479638U (en) | 2013-09-04 | 2013-09-04 | Test tool for recovery rate of elasticity of compression of vehicle sound absorption cotton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479638U true CN203479638U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320547473.4U Expired - Lifetime CN203479638U (en) | 2013-09-04 | 2013-09-04 | Test tool for recovery rate of elasticity of compression of vehicle sound absorption cotton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235629A (en) * | 2021-12-20 | 2022-03-25 | 奇瑞汽车股份有限公司 | Method for rapidly judging tolerance and release performance of different engine oils diluted by fuel oil |
-
2013
- 2013-09-04 CN CN201320547473.4U patent/CN203479638U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235629A (en) * | 2021-12-20 | 2022-03-25 | 奇瑞汽车股份有限公司 | Method for rapidly judging tolerance and release performance of different engine oils diluted by fuel oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |