CN203732220U - Device for testing high temperature vibration sealing performance of motor vehicle exhaust pipe gasket - Google Patents
Device for testing high temperature vibration sealing performance of motor vehicle exhaust pipe gasket Download PDFInfo
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- CN203732220U CN203732220U CN201320754411.0U CN201320754411U CN203732220U CN 203732220 U CN203732220 U CN 203732220U CN 201320754411 U CN201320754411 U CN 201320754411U CN 203732220 U CN203732220 U CN 203732220U
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- motor vehicle
- vehicle exhaust
- flange
- test device
- upper flange
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Abstract
The utility model is aimed at providing a device especially used for testing high temperature vibration sealing performance of a motor vehicle exhaust pipe gasket, aiming at the defects of an existing device for testing static sealing performance of a gasket. The device includes an upper flange and a lower flange, the upper flange and the lower flange are connected through three bolts corresponding to a gasket to be tested, to form a structure similar to a pipe flange, so as to facilitate the test. The pipe length of the upper flange is equal to that of an exhaust pipe, and the high temperature vibration working condition of a motor vehicle exhaust pipe can be simulated by an excitation device and a heating system. The flower flange is provided with a square chassis with a larger area, and the pipe wall is thicker and has a certain slope, to ensure good fixing of the entire lower flange.
Description
Technical field
The utility model relates to motor vehicle components performance test field, relates in particular to a kind of automobile exhausting effective gasket seal high temperature integrality and bubble-tight proving installation.
Background technology
Gas outlet is an important spare part of motor vehicle, is installed between enmgine exhaust and sound suppressor, and the gas that its air intake opening access is discharged from engine, and discharge from the gas outlet of gas outlet.Gas outlet and enmgine exhaust directly adopt the flange connect of three bolts, and adopt exhaust pipe pad to seal to avoid high-temp waste gas to cause potential safety hazard.Enmgine exhaust is generally installed on the cylinder cap of engine, engine exhaust is discharged by exhaust manifold, there is higher temperature (generally can be greater than 650 DEG C), motor vehicle can produce vibration by excitation gas outlet in operational process simultaneously, this just makes exhaust pipe gasket to meet to have under the environment of high temperature, vibration certain sealing property, has again good silencing and damping performance simultaneously.For this reason, soft graphite metal composite pad, red copper O RunddichtringO, the metal wire combined hemisphere pad of soft graphite, metal wire knitted hemisphere pad, metal wound gasket etc. are all applied among various gas outlet sealings, but how rationally to evaluate the sealing effectiveness of these gasket seals, current still desirable test method and the test unit of neither one.Current, gasket seal test device for air tightness is all to carry out under normal temperature, static environment, and this does not meet the working condition of automobile exhaust pipe gasket seal high temperature, vibration, cannot truly evaluate its sealing effectiveness.
Summary of the invention
The purpose of this utility model is the deficiency for existing pad static seal performance testing device, and a kind of proving installation of special testing automobile exhaust pipe gasket high-temperature vibrating sealing effectiveness is provided.
The technical solution of the utility model is as follows:
A kind of motor vehicle exhaust pad high-temperature vibrating sealing test device, it is characterized in that: described proving installation comprises: long tube 8 one end are communicated with the interior ring of upper flange 1, and integrally welded with upper flange 1, in long tube 8, place a heating arrangement 6 with temperature controller 14; A lower flange 2 is welded on an Intermediate Gray to be had on the base 9 of cavity, and the interior ring of upper flange 1 is corresponding with the cavity of base 9, and upper and lower flange bolt connects, the middle gasket seal 3 of placing; The other end sealing of long tube 8, and be connected with power sensor 5, exciting bank 4 successively, in the center of base 9 cavitys, one air intake opening 10 being set, air intake opening 10 is connected with the nitrogen tube 11 of flowmeter 7 with one; Computer data acquiring output system 16 is connected with flowmeter 7 with exciting bank 4.
Described long tube 8 is isometric with automobile exhaust pipe, and pipe thickness is 1mm.
Described heating arrangement 6 is heating rod.
Described exciting bank 4 is vibrator.
On described upper flange, with the electroheat pair aperture 20 of 2mm, thermopair 13 is positioned in electroheat pair aperture 20.
In described nitrogen tube 11, with tensimeter 17, blowdown valve 18 and variable valve 12, and be connected with source nitrogen 15.
Beneficial effect
Upper flange of the present utility model is connected with a long tube, the sealing of pipe one end, and its length is identical with automobile exhaust pipe, pipe thickness is 1mm, its advantage is can produce vibrations under incentive action, the working condition that can imitate automobile exhaust pipe, the confidence level of increase test result.Lower flange is with the larger square chassis of area, and tube wall is thicker and have certain gradient, its advantage to be to ensure that lower flange entirety is fixed well, and can reduce measuring error.Test macro inside is fixed with an electrically heated rod, can make lower flange internal gas be heated to 750 DEG C of above probe temperatures, and be controlled by temperature control system, with the working temperature of simulated exhaust pipe; Meanwhile, adopt gas meter to carry out leakage test, this flowmeter can be digital display, can be also the intelligent test system being connected with computing machine; Described excitation system can provide the excitation load of certain frequency and some strength, with the vibrating effect of simulated exhaust pipe.
Brief description of the drawings:
Fig. 1 is the utility model general assembly drawing
Wherein: 1: upper flange, 2: lower flange, 3: gasket seal, 4: exciting bank, 5: power sensor, 6: heating arrangement, 7: flowmeter, 8: long tube, 9: base, 10: air intake opening, 11: nitrogen tube; 12: pressure regulator valve; 13: thermopair; 14: temperature controller; 15: elevated pressure nitrogen source of the gas; 16: computer data acquiring output system; 17: tensimeter; 18: blowdown valve.
Fig. 2 is the side view with the upper flange of long tube
Wherein 20: thermopair aperture.
Fig. 3 is the vertical view with the upper flange of long tube
Fig. 4 is the side view with the lower flange of base
Wherein 19: heating rod fixed orifice, 10: nitrogen air admission hole.
Fig. 5 is the vertical view with the lower flange of base
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to this example.
As shown in Figure 1, motor vehicle exhaust gasket seal high-temperature vibrating sealing test device of the present utility model comprises upper flange 1 and lower flange 2, and upper flange 1 is drilled with the thermopair aperture 20 that diameter is about 2mm, for placing thermopair 13 with testing experiment environment temperature.Give exciting bank 4 input signals, encourage upper flange 1 to produce vibration by activation lever, power sensor 5 is housed for controlling the size of exciting force in activation lever.
Lower flange 2 chassis are bolted on worktable with four, and the position relative with the mouth of pipe is drilled with three circular holes side by side, and a middle circular hole 10 connects the elevated pressure nitrogen source of the gas of input, measures the nitrogen flow passing through by flowmeter 7, and draw the leakage rate of device with this.On limit, heating rod fixed orifice 19 is for fixing heating arrangement 6, and is connected with temperature controller 14 by these two holes.
Lower flange chassis seating 9 is bolted on operator's console; Nitrogen air admission hole 10 in the middle of chassis seating communicates with flowmeter 7 and elevated pressure nitrogen source of the gas 15 by taking over, and heating rod 6 is fixed on to two heating rod fixed orifices 19 on side, and is connected with temperature controller; Test pad 3, upper flange 1 and long tube 8 thereof are bolted on lower flange face by three; Thermopair 13, flowmeter 7, power sensor 5, vibrator 4 are connected with computer data acquiring output system 16 respectively.
While carrying out high-temperature vibrating leakage test, close blowdown valve 11, open operation valve 12 and control the nitrogen pressure of inflow system by tensimeter 17; Regulate the heating power of heating rod 6 by temperature regulator 14, and the temperature value control probe temperature recording by thermopair 13; By computer data acquiring output system 16 excited frequencies of adjusting vibration exciter 4 and the size of power; Treat that system stability carries out the collection of flowmeter 7 datas on flows afterwards, and timing, after certain hour, record is the leakage rate of test by the gas of flowmeter 7.
Claims (6)
1. a motor vehicle exhaust pad high-temperature vibrating sealing test device, it is characterized in that, described proving installation comprises: a long tube (8) one end is communicated with ring in upper flange (1), and integrally welded with upper flange (1), in long tube (8), place a heating arrangement with temperature controller (14) (6); A lower flange (2) is welded on an Intermediate Gray to be had on the base (9) of cavity, the interior ring of upper flange (1) is corresponding with the cavity of base (9), upper and lower flange bolt connects, the middle gasket seal (3) of placing; The other end sealing of long tube (8), and be connected with power sensor (5), exciting bank (4) successively, center at base (9) cavity arranges an air intake opening (10), and air intake opening (10) is connected with a nitrogen tube with flowmeter (7) (11); Computer data acquiring output system (16) is connected with flowmeter (7) with exciting bank (4).
2. motor vehicle exhaust pad high-temperature vibrating sealing test device as claimed in claim 1, is characterized in that, described long tube (8) is isometric with automobile exhaust pipe, and pipe thickness is 1mm.
3. motor vehicle exhaust pad high-temperature vibrating sealing test device as claimed in claim 1, is characterized in that, described heating arrangement (6) is heating rod.
4. motor vehicle exhaust pad high-temperature vibrating sealing test device as claimed in claim 1, is characterized in that, described exciting bank (4) is vibrator.
5. motor vehicle exhaust pad high-temperature vibrating sealing test device as claimed in claim 1, it is characterized in that, described upper flange is with the electroheat pair aperture (20) of 2mm, and thermopair (13) is positioned in electroheat pair aperture (20).
6. motor vehicle exhaust pad high-temperature vibrating sealing test device as claimed in claim 1, it is characterized in that, described nitrogen tube (11) is upper with tensimeter (17), blowdown valve (18) and variable valve (12), and is connected with source nitrogen (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754411.0U CN203732220U (en) | 2013-11-25 | 2013-11-25 | Device for testing high temperature vibration sealing performance of motor vehicle exhaust pipe gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754411.0U CN203732220U (en) | 2013-11-25 | 2013-11-25 | Device for testing high temperature vibration sealing performance of motor vehicle exhaust pipe gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732220U true CN203732220U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754411.0U Expired - Fee Related CN203732220U (en) | 2013-11-25 | 2013-11-25 | Device for testing high temperature vibration sealing performance of motor vehicle exhaust pipe gasket |
Country Status (1)
| Country | Link |
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| CN (1) | CN203732220U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241612A (en) * | 2015-10-19 | 2016-01-13 | 西南石油大学 | Dynamic test device and method for thread sealing performance of oil pipe adapter |
| CN108507724A (en) * | 2018-05-17 | 2018-09-07 | 安徽江淮汽车集团股份有限公司 | Engine leakage test tool |
| CN108645629A (en) * | 2018-06-26 | 2018-10-12 | 清华大学苏州汽车研究院（相城） | A kind of automotive ventilation air vent relief valve noise-measuring system and test method |
| CN111141459A (en) * | 2020-01-14 | 2020-05-12 | 中国石油大学(北京) | Test device for simulating sealing performance of flange gasket under coupling working condition |
| CN117890021A (en) * | 2024-03-12 | 2024-04-16 | 苏州雷霆光电科技有限公司 | Tightness detection device for LED packaging |
-
2013
- 2013-11-25 CN CN201320754411.0U patent/CN203732220U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241612A (en) * | 2015-10-19 | 2016-01-13 | 西南石油大学 | Dynamic test device and method for thread sealing performance of oil pipe adapter |
| CN108507724A (en) * | 2018-05-17 | 2018-09-07 | 安徽江淮汽车集团股份有限公司 | Engine leakage test tool |
| CN108645629A (en) * | 2018-06-26 | 2018-10-12 | 清华大学苏州汽车研究院（相城） | A kind of automotive ventilation air vent relief valve noise-measuring system and test method |
| CN111141459A (en) * | 2020-01-14 | 2020-05-12 | 中国石油大学(北京) | Test device for simulating sealing performance of flange gasket under coupling working condition |
| CN111141459B (en) * | 2020-01-14 | 2021-06-01 | 中国石油大学(北京) | Test device for simulating sealing performance of flange gasket under coupling working condition |
| CN117890021A (en) * | 2024-03-12 | 2024-04-16 | 苏州雷霆光电科技有限公司 | Tightness detection device for LED packaging |
| CN117890021B (en) * | 2024-03-12 | 2024-05-07 | 苏州雷霆光电科技有限公司 | Tightness detection device for LED packaging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20211125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |