CN108240905A - A kind of automobile exhaust pipe thermal vibration detecting system - Google Patents
A kind of automobile exhaust pipe thermal vibration detecting system Download PDFInfo
- Publication number
- CN108240905A CN108240905A CN201810228674.5A CN201810228674A CN108240905A CN 108240905 A CN108240905 A CN 108240905A CN 201810228674 A CN201810228674 A CN 201810228674A CN 108240905 A CN108240905 A CN 108240905A
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- jig
- exhaust pipe
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- detecting system
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- 238000001514 detection method Methods 0.000 claims abstract description 32
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003584 silencer Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of automobile exhaust pipe thermal vibration detecting systems, the detecting system includes hot-air supplying equipment, jig, vibrating device, crack detection device and pressure-detecting device, the jig includes the first jig branch and the second jig branch, the first jig branch is loaded on vibrating device, the second jig branch is loaded in stationary tabletop, and exhaust pipe specimen holder to be detected is loaded between the first jig branch and the second jig branch；The hot-air supplying equipment is used to be passed through high-temperature gas to the exhaust pipe sample, and the vibrating device drives exhaust pipe sample vibration a period of time that load is pressed from both sides on the jig；The crack detection device and pressure-detecting device are respectively used to carry out crack detection and air-leakage test to completing the exhaust pipe sample after vibrating.The present invention combines heat detection and vibration detection, and the true use environment of automobile exhaust pipe is simulated and tested, simple operation, testing result is with a high credibility.
Description
Technical field
The present invention relates to automobile exhaust pipe detection field, more particularly to a kind of automobile exhaust pipe thermal vibration detecting system.
Background technology
Automobile exhaust bellows is also known as automobile exhaust pipe hose, it is installed between engine exhaust branch pipe and silencer
In exhaust pipe, make whole gas extraction system in Flexible spacecraft, so as to playing vibration and noise reducing, facilitating installation and extending exhausting silencer system
The effect in service life.It is mainly used for Light-duty Vehicle, minicar and car, and structure is that double-ply bellows is cladded with wire sets, both ends
The structure of straight section housing snap ring, to make noise elimination effect more preferably, bellows interior can match telescopic joint or net cover.
Automobile exhaust pipe plays damping noise reduction for the effect of automobile fuselage, extends the work in exhausting silencer system service life
With.The benefit of automobile exhaust pipe directly decides the noise level of automobile, therefore, before automobile manufacture, needs the exhaust to automobile
Pipe carries out quality testing, and there are no the effective special inspecting equipments for Design of Exhaust Manifold at present.
Invention content
In order to solve problem of the prior art, the present invention provides a kind of automobile exhaust pipe thermal vibration detecting system, operations
Convenient, testing result is accurate, and the technical solution is as follows：
The present invention provides a kind of automobile exhaust pipe thermal vibration detecting system, including hot-air supplying equipment, jig, vibration dress
It puts, crack detection device and pressure-detecting device, the jig includes the first jig branch and the second jig branch, and described first
Jig branch is loaded on vibrating device, and the second jig branch is loaded in stationary tabletop, exhaust pipe sample to be detected
Folder is loaded between the first jig branch and the second jig branch；
The hot-air supplying equipment is used to be passed through high-temperature gas to the exhaust pipe sample, described in the vibrating device drives
Exhaust pipe sample vibration a period of time of load is pressed from both sides on jig；
The crack detection device and pressure-detecting device are respectively used to split to completing the exhaust pipe sample after vibrating
Line detects and air-leakage test.
Further, the hot-air supplying equipment includes heating unit and blower device, makes in the hot-air supplying equipment
Portion forms hot-air channel, and the gas temperature for being passed through the exhaust pipe sample is greater than or equal to 700 DEG C.
Further, the vibrating device includes front and rear vibrating mechanism, side-to-side vibrations mechanism and up-down vibration mechanism, described
Front and rear vibrating mechanism, side-to-side vibrations mechanism and up-down vibration mechanism are individually vibrated or are vibrated simultaneously.
Further, the crack detection device includes magnifying glass or microscope.
Further, the pressure-detecting device includes compression pump and pressure/flow display instrument dial plate.
Further, the heating unit includes the one section of heater, two sections of heaters and the three sections of heaters that are arranged in order,
One section of heater, two sections of heaters and three sections of heaters are independent control pattern, and the end of the hot-air channel is equipped with temperature
Sensor is spent, the blower device is arranged on the front end of one section of heater.
Further, it is connected between the end of the hot-air channel and exhaust pipe sample by flexible high-temperature resistant pipeline.
Further, the quantity of the jig is one or more, in the case that the jig is multiple, the detection
System can carry out thermal vibration detection to multiple exhaust pipe samples simultaneously.
Further, the hot-air supplying equipment, which further includes, stops control module, in the time for opening heating unit
After reaching preset time threshold, control heater stop heats and/or after heater stop heating, described in control
Blower device stops air blast.
Further, the hot-air supplying equipment further includes safety control module, for before blower device is opened, controlling
It makes the heating unit and is maintained at limitation starting state.
What technical solution provided by the invention was brought has the beneficial effect that：
A. the true use environment of simulated automotive exhaust pipe integrates heat detection and vibration detection, improves detection efficiency and credible
Degree；
B. it realizes that multiple automobile exhaust pipes detect simultaneously, improves detection efficiency；
C. hot-air supplying equipment is provided with intelligent control module, improves the safety of hot blast feeding and the energy saving of wind turbine.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structure diagram of automobile exhaust pipe thermal vibration detecting system provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of the detection platform of automobile exhaust pipe provided in an embodiment of the present invention.
Wherein, reference numeral includes：1- hot-air supplying equipments, 2- jigs, the first jigs of 21- branch, 22- the second jigs point
Portion, 3- vibrating devices, 4- exhaust pipe samples, 5- flexible high-temperature resistant pipelines, 6- stationary tabletops.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, apparatus, product or equipment
Those steps or unit clearly listed, but may include not listing clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
In one embodiment of the invention, a kind of automobile exhaust pipe thermal vibration detecting system is provided, referring to Fig. 1 and figure
2, the detecting system includes hot-air supplying equipment 1, jig 2, vibrating device 3, crack detection device and pressure-detecting device, institute
It states jig 2 and includes the first jig branch 21 and the second jig branch 22, the first jig branch 21 is loaded in vibrating device 3
On, the second jig branch 22 is loaded in stationary tabletop 6, and exhaust pipe sample 4 to be detected folder is loaded in first jig
Between 21 and second jig branch 22 of branch；
The hot-air supplying equipment 1 is used to be passed through high-temperature gas to the exhaust pipe sample 4, and the vibrating device 3 drives
Vibration a period of time of exhaust pipe sample 4 of load is pressed from both sides on the jig 2；
The crack detection device and pressure-detecting device are respectively used to split to completing the exhaust pipe sample 4 after vibrating
Line detects and air-leakage test.
In one embodiment of the invention, the vibrating device 3 include front and rear vibrating mechanism, side-to-side vibrations mechanism and on
(tool individually vibration or vibrates simultaneously in lower vibrating mechanism, the front and rear vibrating mechanism, side-to-side vibrations mechanism and up-down vibration mechanism
Body can carry out manually setting by the setting panel of vibrating device 3).
As shown in Figure 1 or 2, the quantity of the jig 2 can be multiple (can certainly be one), when the jig
In the case that 2 are multiple, the detecting system can carry out thermal vibration detection to multiple exhaust pipe samples 4 simultaneously, shorten multiple
The time required to the detection for detecting sample.
The hot-air supplying equipment 1 includes heating unit and blower device, and 1 inside of hot-air supplying equipment is made to form heat
Wind channel, the gas temperature for being passed through the exhaust pipe sample 4 are greater than or equal to 700 DEG C, and actual temp here is only in this hair
A citing in bright application scenarios, and not as the limitation to invention protection domain.In the preferred embodiment of the present invention,
The heating unit includes the one section of heater, two sections of heaters and the three sections of heaters that are arranged in order, one section of heater, two
Section heater and three sections of heaters are independent control pattern, and the end of the hot-air channel is equipped with temperature sensor, the air blast
Device is arranged on the front end of one section of heater, i.e., described blower device is arranged on the initial end of hot-air channel, the hot-air channel
End and exhaust pipe sample 4 between connected by flexible high-temperature resistant pipeline 5.
In a preferred embodiment, the hot-air supplying equipment 1, which further includes, stops control module and security control mould
Block, described i.e. stopping control module is provided with timing unit, reaches preset time threshold with the real time for now switching on heating unit
After value, the heating of control heater stop and/or, it is described to stop control module and be provided with linkage stop unit, added with realizing
After thermal stops heating, the blower device is controlled to stop air blast, described i.e. stopping control module realizes the intelligence of equipment
Automatic control stops, and reduces manual operation, and realize the accurate control of detection parameters.And safety control module is then used to fill in air blast
Before putting unlatching, the heating unit is controlled to be maintained at limitation starting state, i.e., is only in the state of unlatching in blower device
Under, the heating unit is likely to start, and can thus place hot gas and be accumulated in heating unit and influence heating dress
The performance and service life put.
The detection method of automobile exhaust pipe thermal vibration detecting system provided in an embodiment of the present invention is as follows：
The folder of exhaust pipe sample 4 to be detected is loaded on jig 2, is then loaded in the first jig branch 21 of jig 2
On vibrating device 3, the second jig branch 22 of jig 2 is loaded in stationary tabletop 6, then by flexible high-temperature resistant pipeline 5
One end is connect with exhaust pipe sample 4, and checks that it connects air-tightness and (prevents heat gas from being sent out before exhaust pipe sample 4 is reached
Raw leakage).Then start blower device, restart heating unit and (according to simulation operating mode and experimental design, rationally open one section and add
Hot device, two sections of heaters and/or three sections of heaters), after heating time reaches test request time threshold, first close heating
Device, closes blower device afterwards, then removes the exhaust pipe sample 4, and crack detection is carried out to it using crack detection device, profit
Pressure detecting is carried out to it with pressure-detecting device (crack detection and pressure detecting do not have precedence restriction).Preferably, institute
It states crack detection device and includes magnifying glass or microscope；The pressure-detecting device includes compression pump and pressure/flow display instrument
Dial plate.If it is not detected that there is not instrument more than the crackle of length limit and after pressure is pumped into certain air pressure
Disk reading reduces (or decrement is not above limit value), then testing result is qualification, and instead then testing result is unqualified.
The present invention combines heat detection and vibration detection, and the true use environment of automobile exhaust pipe is simulated and tested,
Simple operation, testing result are with a high credibility.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of automobile exhaust pipe thermal vibration detecting system, which is characterized in that including hot-air supplying equipment (1), jig (2), shake
Dynamic device (3), crack detection device and pressure-detecting device, the jig (2) are controlled including the first jig branch (21) and second
Has branch (22), the first jig branch (21) is loaded on vibrating device (3), and the second jig branch (22) is loaded in
In stationary tabletop (6), exhaust pipe sample (4) to be detected folder is loaded in the first jig branch (21) and the second jig branch
(22) between；
The hot-air supplying equipment (1) to the exhaust pipe sample (4) for being passed through high-temperature gas, vibrating device (3) band
Move exhaust pipe sample (4) vibration a period of time that load is pressed from both sides on the jig (2)；
The crack detection device and pressure-detecting device are respectively used to carry out crackle to completing the exhaust pipe sample (4) after vibrating
Detection and air-leakage test.
2. detecting system according to claim 1, which is characterized in that the hot-air supplying equipment (1) is including heating unit
And blower device, make to form hot-air channel inside the hot-air supplying equipment (1), be passed through the gas of the exhaust pipe sample (4)
Temperature is greater than or equal to 700 DEG C.
3. detecting system according to claim 1, which is characterized in that the vibrating device (3) including front and rear vibrating mechanism,
Side-to-side vibrations mechanism and up-down vibration mechanism, the front and rear vibrating mechanism, side-to-side vibrations mechanism and up-down vibration mechanism individually shake
It moves or vibrates simultaneously.
4. detecting system according to claim 1, which is characterized in that the crack detection device includes magnifying glass or micro-
Mirror.
5. detecting system according to claim 1, which is characterized in that the pressure-detecting device includes compression pump and pressure
Power/Flow Measurement Display Meter dial plate.
6. detecting system according to claim 2, which is characterized in that the heating unit includes one section be arranged in order and adds
Hot device, two sections of heaters and three sections of heaters, one section of heater, two sections of heaters and three sections of heaters are independent control mould
Formula, the end of the hot-air channel are equipped with temperature sensor, and the blower device is arranged on the front end of one section of heater.
7. detecting system according to claim 2, which is characterized in that the end of the hot-air channel and exhaust pipe sample
(4) it is connected between by flexible high-temperature resistant pipeline (5).
8. detecting system according to claim 1, which is characterized in that the quantity of the jig (2) is one or more, when
In the case that the jig (2) is multiple, the detecting system can carry out thermal vibration inspection to multiple exhaust pipe samples (4) simultaneously
It surveys.
9. detecting system according to claim 2, which is characterized in that the hot-air supplying equipment (1), which further includes, to be stopped to control
Molding block, for open heating unit time reach preset time threshold after, control heater stop heating and/
Or after heater stop heating, the blower device is controlled to stop air blast.
10. detecting system according to claim 2, which is characterized in that the hot-air supplying equipment (1) further includes safe control
Molding block, for the heating unit before blower device is opened, to be controlled to be maintained at limitation starting state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228674.5A CN108240905A (en) | 2018-03-20 | 2018-03-20 | A kind of automobile exhaust pipe thermal vibration detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228674.5A CN108240905A (en) | 2018-03-20 | 2018-03-20 | A kind of automobile exhaust pipe thermal vibration detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240905A true CN108240905A (en) | 2018-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228674.5A Pending CN108240905A (en) | 2018-03-20 | 2018-03-20 | A kind of automobile exhaust pipe thermal vibration detecting system |
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| Country | Link |
|---|---|
| CN (1) | CN108240905A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211973A (en) * | 2018-08-03 | 2019-01-15 | 钟超 | A kind of automotive material exhaust pipe heat resistance test device |
| CN109708861A (en) * | 2018-12-29 | 2019-05-03 | 东南大学 | A kind of automobile exhaust pipe thermal vibration detection method and detection system, computer program |
| CN110057521A (en) * | 2019-04-09 | 2019-07-26 | 天津航天瑞莱科技有限公司 | Motor vehicle emission processor heat vibration pilot system |
| CN110411720A (en) * | 2019-07-16 | 2019-11-05 | 苏州中汽检测技术服务有限公司 | The detection device and detection method of carrier reliability in vehicle-exhaust exhaust pipe |
| CN111006831A (en) * | 2019-12-29 | 2020-04-14 | 万向通达股份公司 | Automobile exhaust system simulation thermal vibration test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081735A (en) * | 2000-09-08 | 2002-03-22 | Tokyo Gas Co Ltd | Water heater |
| US20130171919A1 (en) * | 2010-08-05 | 2013-07-04 | Ebara Corporation | Exhaust system |
| CN106441938A (en) * | 2016-11-10 | 2017-02-22 | 中国汽车技术研究中心 | Dynamic testing device of vehicle exhaust system |
| CN206056867U (en) * | 2016-09-12 | 2017-03-29 | 浙江吉利控股集团有限公司 | Gasket performance detection means |
| CN107478403A (en) * | 2017-09-04 | 2017-12-15 | 无锡帕捷科技有限公司 | Pipeline RTA reliability test assembly |
| CN207923438U (en) * | 2018-03-20 | 2018-09-28 | 苏州中汽检测技术服务有限公司 | A kind of automobile exhaust pipe thermal vibration detecting system |
-
2018
- 2018-03-20 CN CN201810228674.5A patent/CN108240905A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081735A (en) * | 2000-09-08 | 2002-03-22 | Tokyo Gas Co Ltd | Water heater |
| US20130171919A1 (en) * | 2010-08-05 | 2013-07-04 | Ebara Corporation | Exhaust system |
| CN206056867U (en) * | 2016-09-12 | 2017-03-29 | 浙江吉利控股集团有限公司 | Gasket performance detection means |
| CN106441938A (en) * | 2016-11-10 | 2017-02-22 | 中国汽车技术研究中心 | Dynamic testing device of vehicle exhaust system |
| CN107478403A (en) * | 2017-09-04 | 2017-12-15 | 无锡帕捷科技有限公司 | Pipeline RTA reliability test assembly |
| CN207923438U (en) * | 2018-03-20 | 2018-09-28 | 苏州中汽检测技术服务有限公司 | A kind of automobile exhaust pipe thermal vibration detecting system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211973A (en) * | 2018-08-03 | 2019-01-15 | 钟超 | A kind of automotive material exhaust pipe heat resistance test device |
| CN109211973B (en) * | 2018-08-03 | 2020-11-27 | 嘉兴管通机电科技有限公司 | Exhaust pipe heat resistance testing device for automobile materials |
| CN109708861A (en) * | 2018-12-29 | 2019-05-03 | 东南大学 | A kind of automobile exhaust pipe thermal vibration detection method and detection system, computer program |
| CN110057521A (en) * | 2019-04-09 | 2019-07-26 | 天津航天瑞莱科技有限公司 | Motor vehicle emission processor heat vibration pilot system |
| CN110411720A (en) * | 2019-07-16 | 2019-11-05 | 苏州中汽检测技术服务有限公司 | The detection device and detection method of carrier reliability in vehicle-exhaust exhaust pipe |
| CN111006831A (en) * | 2019-12-29 | 2020-04-14 | 万向通达股份公司 | Automobile exhaust system simulation thermal vibration test device |
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Application publication date: 20180703 |