CN206638538U - Test the experimental rig in metal bellows single-degree-of-freedom fatigue fracture life-span - Google Patents
Test the experimental rig in metal bellows single-degree-of-freedom fatigue fracture life-span Download PDFInfo
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- CN206638538U CN206638538U CN201720329477.3U CN201720329477U CN206638538U CN 206638538 U CN206638538 U CN 206638538U CN 201720329477 U CN201720329477 U CN 201720329477U CN 206638538 U CN206638538 U CN 206638538U
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- bellows
- span
- metal bellows
- experimental rig
- fatigue fracture
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- 239000002184 metal Substances 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000003466 welding Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of experimental rig is the utility model is related to, specifically a kind of experimental rig for testing the metal bellows single-degree-of-freedom fatigue fracture life-span, belongs to metal bellows technical field of measurement and test.It includes incubator, bellows, source of the gas and shake table, and bellows is set in incubator, and bellows one end welding air inlet plug forms inlet end, and bellows other end welded seal plug forms sealed end, and the sealed end of bellows is fixed on the vibration table of shake table；The air inlet plug connecting adapter of bellows inlet end, adapter connect source of the gas by airway tube, connecting branch on airway tube.The utility model device cost is low, easy installation, principle are understandable, can Reusability, the fatigue fracture specific life-span of metal bellows can truly be fed back, the relation between fatigue and stress for research automobile exhaust system metal bellows, establishes fatigue data storehouse tool and is of great significance.
Description
Technical field
A kind of experimental rig is the utility model is related to, specifically a kind of test metal bellows single-degree-of-freedom fatigue is disconnected
The experimental rig in life-span is split, belongs to metal bellows technical field of measurement and test.
Background technology
Metal bellows is used for the cold and hot both ends for connecting automobile exhaust system, can effectively reduce what gas extraction system was subject to
The vibration and impact for causing or transmitting from factors such as engine, vehicle body and ground, mitigate because of engine position relative with gas extraction system
Move and the gas extraction system triggered or even the vibration of vehicle, important function is served in the vibration damping, noise reduction in automobile exhaust system.Vapour
Car is an object moved under severe, changeable environment and load, and automobile exhaust system is even more to be in high temperature, a high humidity
Degree, strong vibration, have in the exceedingly odious environment that burn into is impacted by air blast, metal bellows is answered in use, studying it herein
Force value and the relation in life-span are also particularly important.
Existing metal bellows fatigue test is realized using electromagnetic vibration platform mostly, can only set circulation time
Number, to specified time after stop, detecting whether to be broken, can not find out metal bellows specifically after how many times have been circulated there occurs
Fracture, this specific life search of fatigue fracture to metal bellows bring difficulty.Therefore, should in order to study metal bellows
Power is with tired relation, it is necessary to design a kind of experimental rig to find out metal bellows specific fatigue life.
The content of the invention
It is free so as to provide a kind of test metal bellows list in place of the purpose of this utility model is to overcome above-mentioned deficiency
The experimental rig in fatigue fracture life-span is spent, can truly feed back the fatigue fracture specific life-span of metal bellows.
According to technical scheme provided by the utility model, the experiment in metal bellows single-degree-of-freedom fatigue fracture life-span is tested
Device includes incubator, bellows, source of the gas and shake table, it is characterized in that：Bellows, the welding air inlet of bellows one end are set in incubator
Plug forms inlet end, and bellows other end welded seal plug forms sealed end, and the sealed end of bellows is fixed on shake table
Vibration table on；The air inlet plug connecting adapter of bellows inlet end, adapter connect source of the gas, airway tube by airway tube
Upper connecting branch.
Further, adapter connects air inlet plug by fine thread and ensures to seal.
Further, airway tube is provided with pressure gauge.
Further, airway tube is provided with the first air valve.
Further, branch pipe is provided with the second air valve.
Compared with the prior art the utility model has advantages below：
The utility model is simple in construction, compact, reasonable, equipment cost is low, easy installation, principle are understandable, can Reusability,
The fatigue fracture specific life-span of metal bellows can be truly fed back, the fatigue for studying automobile exhaust system metal bellows
Relation between stress, establish fatigue data storehouse tool and be of great significance.
Brief description of the drawings
Fig. 1 is the utility model front view.
Description of reference numerals：1- incubators, 2- bellowss, 3- adapters, 4- pressure gauges, 5- sources of the gas, the air valves of 6- first, 7- are led
Tracheae, 8- air inlets plug, 9- shake tables, 10- seal plugs, the air valves of 11- second, 12- branch pipes.
Embodiment
The utility model will be further described with reference to the embodiment in accompanying drawing below：
As shown in figure 1, the utility model mainly includes incubator 1, bellows 2, source of the gas 5 and shake table 9.
Bellows 2 is set in incubator 1, and the one end of bellows 2 welding air inlet plug 8 forms inlet end, the weldering of the other end of bellows 2
Connect seal plug 10 and form sealed end, the sealed end of bellows 2 is fixed on the vibration table of shake table 9.
The connecting adapter 3 of air inlet plug 8 of the inlet end of bellows 2, adapter 3 connect air inlet plug 8 by fine thread
Ensure to seal.
Adapter 3 connects source of the gas 5 by airway tube 7, and airway tube 7 is provided with pressure gauge 4, can shown by pressure gauge 4
Air pressure in airway tube 7.Airway tube 7 is provided with the first air valve 6, and source of the gas 5 is turned on and off by the first air valve 6.
Connecting branch 12 on airway tube 7, branch pipe 12 are provided with the second air valve 11, are turned on and off propping up by the second air valve 11
Pipe 12.
Concrete operation step of the present utility model is as follows：
The first step, bellows one end welding air inlet plug, other end welded seal plug, will weld one end of air inlet plug
It is fixed on pedestal, the other end of welded seal plug is arranged on vibration table.
Second step, bellows is placed in incubator, adapter is connected with air inlet plug fine thread, it is ensured that sealing.
3rd step, the adapter other end connect airway tube, connect pressure gauge after airway tube, the first gas is connect after pressure gauge
Valve, the first air valve are used for controlling gas source switch.
4th step, after the completion of connection, source of the gas is opened, the first air valve, closes the second air valve, inflation, in welding and interface
Suds are smeared to see whether to seal, it is ensured that the second air valve off-load is opened after sealing, it is rear to close；It is inflated to specified pressure（Can
Judged by pressure gauge reading）.
5th step, in bellows after gassy, incubator is opened, assigned temperature is heated to, treats temperature stabilization for a period of time
Afterwards, the reading of pressure gauge is observed, and records pressure value now.Shake table is opened, is started working after setting frequency and displacement,
The reading change of pressure gauge is observed, and a pressure data was recorded every 5 minutes, the data of statistic record, draws time and pressure
The curve map of force value.
6th step, when bellows causes gas leakage due to fatigue fracture, pressure gauge reading can decline into landslide type, according to painting
The curve map trend of system can draw the specific cycle-index of bellows fatigue fracture under this displacement.
The utility model is simple in construction, compact, reasonable, equipment cost is low, easy installation, principle are understandable, can Reusability,
The fatigue fracture specific life-span of metal bellows can be truly fed back, the fatigue for studying automobile exhaust system metal bellows
Relation between stress, establish fatigue data storehouse tool and be of great significance.
Claims (5)
1. a kind of experimental rig for testing the metal bellows single-degree-of-freedom fatigue fracture life-span, including incubator（1）, bellows（2）、
Source of the gas（5）And shake table（9）, it is characterized in that：Incubator（1）Interior setting bellows（2）, bellows（2）Weld air inlet plug in one end
（8）Form inlet end, bellows（2）Other end welded seal plug（10）Form sealed end, bellows（2）Sealed end fix
In shake table（9）Vibration table on；Bellows（2）The air inlet plug of inlet end（8）Connecting adapter（3）, adapter（3）It is logical
Cross airway tube（7）Connect source of the gas（5）, airway tube（7）Upper connecting branch（12）.
2. the experimental rig in test metal bellows single-degree-of-freedom fatigue fracture life-span as claimed in claim 1, it is characterized in that：
The adapter（3）Air inlet plug is connected by fine thread（8）Ensure to seal.
3. the experimental rig in test metal bellows single-degree-of-freedom fatigue fracture life-span as claimed in claim 1, it is characterized in that：
The airway tube（7）It is provided with pressure gauge（4）.
4. the experimental rig in test metal bellows single-degree-of-freedom fatigue fracture life-span as claimed in claim 1, it is characterized in that：
The airway tube（7）It is provided with the first air valve（6）.
5. the experimental rig in test metal bellows single-degree-of-freedom fatigue fracture life-span as claimed in claim 1, it is characterized in that：
The branch pipe（12）It is provided with the second air valve（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329477.3U CN206638538U (en) | 2017-03-31 | 2017-03-31 | Test the experimental rig in metal bellows single-degree-of-freedom fatigue fracture life-span |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329477.3U CN206638538U (en) | 2017-03-31 | 2017-03-31 | Test the experimental rig in metal bellows single-degree-of-freedom fatigue fracture life-span |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206638538U true CN206638538U (en) | 2017-11-14 |
Family
ID=60259808
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720329477.3U Expired - Fee Related CN206638538U (en) | 2017-03-31 | 2017-03-31 | Test the experimental rig in metal bellows single-degree-of-freedom fatigue fracture life-span |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206638538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008692A (en) * | 2021-02-01 | 2021-06-22 | 南京航力机电设备有限公司 | Tensile testing machine for metal corrugated pipe |
| CN113008691A (en) * | 2021-02-01 | 2021-06-22 | 南京航力机电设备有限公司 | Vibration testing machine for metal corrugated pipe |
-
2017
- 2017-03-31 CN CN201720329477.3U patent/CN206638538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008692A (en) * | 2021-02-01 | 2021-06-22 | 南京航力机电设备有限公司 | Tensile testing machine for metal corrugated pipe |
| CN113008691A (en) * | 2021-02-01 | 2021-06-22 | 南京航力机电设备有限公司 | Vibration testing machine for metal corrugated pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 |