CN201837452U - Tail pipe noise testing fixture of automobile exhaust muffler - Google Patents
Tail pipe noise testing fixture of automobile exhaust muffler Download PDFInfo
- Publication number
- CN201837452U CN201837452U CN2010205355178U CN201020535517U CN201837452U CN 201837452 U CN201837452 U CN 201837452U CN 2010205355178 U CN2010205355178 U CN 2010205355178U CN 201020535517 U CN201020535517 U CN 201020535517U CN 201837452 U CN201837452 U CN 201837452U
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- CN
- China
- Prior art keywords
- tail pipe
- connecting links
- adjustable
- noise testing
- adjustable fixture
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a tail pipe noise testing fixture of an automobile exhaust muffler, which comprises three suckers, a plurality of connecting rods, a plurality of adjustable fixing pieces and a microphone clip, wherein a bracket is formed by connecting the plurality of connecting rods by the adjustable fixing pieces; three end points distributed in a triangle are formed at one end of the bracket; the three suckers are respectively connected on the three end points by the three adjustable fixing pieces; and the microphone clip is connected at the other end of the bracket. The fixture not only effectively avoids the test error caused by the vibration of an exhaust system, but also can be applicable to testing multiple automobile modes.
Description
Technical field
The utility model relates to a kind of proving installation, particularly a kind of auto exhaust exhaust box tail pipe noise testing anchor clamps.
Background technology
Automobile in the process of moving, the vibration of exhaust system itself is very strong, causes microphone to be shaken significantly, sound pressure level changes, thereby causes test error.
The utility model content
The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art, a kind of shake that reduces microphone is provided, reduces the auto exhaust exhaust box tail pipe noise testing anchor clamps of test error.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of auto exhaust exhaust box tail pipe noise testing anchor clamps comprise three suckers, a plurality of connecting link, a plurality of adjustable fixture and microphone folder; A plurality of connecting links connect into support by a plurality of adjustable fixtures, form the end points of three distributions triangular in shape at an end of support, and three suckers are connected on described three end points by three adjustable fixtures respectively, and the microphone folder is connected the other end of support.
Described support comprises three long connecting links, three long connecting links are fan-shaped and arrange, the middle part of three long connecting links is connected with the middle part cross bar by adjustable fixture, the afterbody of three long connecting links is connected with the afterbody cross bar by adjustable fixture, and described microphone folder is connected on the afterbody cross bar by adjustable fixture.
Described microphone folder is connected to form by adjustable fixture by two connecting links, and wherein a connecting link is connected on the afterbody cross bar by adjustable fixture, and another root connecting link is provided with the mounting hole that is used to install microphone.
Compared with prior art, the utlity model has following advantage:
One, under the automobilism situation, can reduce the test error that causes owing to exhaust system tail pipe self vibration, improved the reliability and the accuracy of test data.
Two, technology is simple: only need 3 suckers, some adjustable connecting device just can be installed according to actual test case.
Three, effect is obvious: sound pressure level will reduce by 3～5 decibels than conventional test methodologies.
Description of drawings
Fig. 1 is the structural representation of the utility model auto exhaust exhaust box tail pipe noise testing anchor clamps.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Referring to Fig. 1, auto exhaust exhaust box tail pipe noise testing anchor clamps of the present utility model, comprise three suckers 11,12,13, a plurality of connecting links 21,22,23,24,25, a plurality of adjustable fixture 31,32,33,34,35,36,37,38,39 and microphone folder 4; A plurality of connecting links 21,22,23,24,25 connect into support by a plurality of adjustable fixtures 31,32,33,34,35, form the end points of three distributions triangular in shape at an end of support, three suckers 11,12,13 are connected on above-mentioned three end points by three adjustable fixtures 36,37,38 respectively, and microphone folder 4 is connected the other end of support.
Support in the utility model comprises three long connecting links 21,22,23, three long connecting links are fan-shaped and arrange, the middle part of three long connecting links is connected with middle part cross bar 24 by adjustable fixture, the afterbody of three long connecting links is connected with afterbody cross bar 25 by adjustable fixture, and microphone folder 4 is connected on the afterbody cross bar 25 by adjustable fixture 39.
Microphone folder 4 is connected to form by adjustable fixture 43 by two connecting links 41,42, and wherein a connecting link 41 is connected on the afterbody cross bar 25 by adjustable fixture 39, and another root connecting link 42 is provided with the mounting hole that is used to install microphone 5.Microphone 5 is installed on the connecting link 42.
Adopt the utility model auto exhaust exhaust box tail pipe noise testing anchor clamps to test, significantly reduced the microphone shake that connects by exhaust system and the test error that causes, thereby can obtain effective accurately and reliably test data.
Claims (3)
1. auto exhaust exhaust box tail pipe noise testing anchor clamps is characterized in that: comprise three suckers, a plurality of connecting link, a plurality of adjustable fixture and microphone folder; A plurality of connecting links connect into support by a plurality of adjustable fixtures, form the end points of three distributions triangular in shape at an end of support, and three suckers are connected on described three end points by three adjustable fixtures respectively, and the microphone folder is connected the other end of support.
2. the anchor clamps of a kind of new automobile muffler tail pipe according to claim 1 noise testing, it is characterized in that: described support comprises three long connecting links, three long connecting links are fan-shaped and arrange, the middle part of three long connecting links is connected with the middle part cross bar by adjustable fixture, the afterbody of three long connecting links is connected with the afterbody cross bar by adjustable fixture, and described microphone folder is connected on the afterbody cross bar by adjustable fixture.
3. the anchor clamps of a kind of new automobile muffler tail pipe according to claim 1 noise testing, it is characterized in that: described microphone folder is connected to form by adjustable fixture by two connecting links, wherein a connecting link is connected on the afterbody cross bar by adjustable fixture, and another root connecting link is provided with the mounting hole that is used to install microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205355178U CN201837452U (en) | 2010-09-19 | 2010-09-19 | Tail pipe noise testing fixture of automobile exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205355178U CN201837452U (en) | 2010-09-19 | 2010-09-19 | Tail pipe noise testing fixture of automobile exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837452U true CN201837452U (en) | 2011-05-18 |
Family
ID=44007561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205355178U Expired - Lifetime CN201837452U (en) | 2010-09-19 | 2010-09-19 | Tail pipe noise testing fixture of automobile exhaust muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837452U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853901A (en) * | 2012-09-06 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for testing automobile exhaust tail pipe noise |
| CN103846695A (en) * | 2012-12-04 | 2014-06-11 | 庄河市天成机械有限公司 | Clamping fixture for wind power hub vertical lathe |
| CN105675127A (en) * | 2012-09-06 | 2016-06-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Noise testing device and testing method for automobile exhaust tail pipe |
| CN111750976A (en) * | 2020-05-18 | 2020-10-09 | 重庆长安汽车股份有限公司 | Point sound source volume acceleration calibration device and method |
-
2010
- 2010-09-19 CN CN2010205355178U patent/CN201837452U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853901A (en) * | 2012-09-06 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for testing automobile exhaust tail pipe noise |
| CN102853901B (en) * | 2012-09-06 | 2016-03-30 | 浙江吉利汽车研究院有限公司杭州分公司 | Noise testing device for automobile tail pipe and method of testing |
| CN105675127A (en) * | 2012-09-06 | 2016-06-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Noise testing device and testing method for automobile exhaust tail pipe |
| CN103846695A (en) * | 2012-12-04 | 2014-06-11 | 庄河市天成机械有限公司 | Clamping fixture for wind power hub vertical lathe |
| CN111750976A (en) * | 2020-05-18 | 2020-10-09 | 重庆长安汽车股份有限公司 | Point sound source volume acceleration calibration device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |