CN1241717A - Dry hermetization testing method and device - Google Patents
Dry hermetization testing method and device Download PDFInfo
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- CN1241717A CN1241717A CN 99104486 CN99104486A CN1241717A CN 1241717 A CN1241717 A CN 1241717A CN 99104486 CN99104486 CN 99104486 CN 99104486 A CN99104486 A CN 99104486A CN 1241717 A CN1241717 A CN 1241717A
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- closed container
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- voltage stabilizing
- medium
- sliding sleeve
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Abstract
The present invention is used in hermetization test of objects, especially of engine, speed variator, etc. equipped in vehicle. Technologically, the dry hermetization testing device consists of sealed container, pressure stabilizing slide sleeve, duct, air inlet and air outlet. During the hermetization test, the sealed container has its one space filled with testing medium and the other space used as air space, the compressed air source makes air with certain pressure enter through the duct, the testing medium and the air space into the interior of the tested object to maintain the constant working pressure, and the sealed container is observed to see whether or not there is bubble appearing inside the test medium. The present invention does not need to soak the tested object into water, and this can avoid the rust inside the tested object, eliminate the huge soaking container, observe intuitively the hermetization performance of the tested object and prevent the testing medium from entering the interior of the tested object.
Description
The present invention relates to a kind of dry hermetization testing method and device, be used for the sealing of inspected object, particularly to the detection of sealing properties such as the engine of vehicle configuration, variator.
At present, the sealing of inspected object mainly contains two kinds of methods: the one, testee is immersed in water or other detection medium, and charge into the pressurized air of certain pressure in the object, whether observe has bubble to overflow from water; The 2nd, testee is charged into the pressurized air of certain pressure, cut off source of the gas behind the Inflatable balance, measure pressure drop in the unit interval by pressure tester and instrument, instrument.First method need dispose a bulk container that floods testee fully, takies bigger space; If operate careless slightlyly, very easily make water enter testee inside, cause corrosion; Testee surface attachment moisture splashes in the fluid that carries out Performance Detection subsequently in a large number, increases the content of W/O, equally easily causes the testee internal corrosion; For weight, testee that volume is bigger, not only need bigger container, also need to increase handling appliance, it is very inconvenient to operate.Second method is because pressure reduction is very little, and is high to the checkout equipment requirement, costs an arm and a leg, and detects the field condition complexity in addition, and precision and the stability that detects is had certain influence.
The object of the invention provides a kind of dry hermetization testing method and device, prevents to detect medium and enters testee inside, and volume is little, cost is low, and is easy to detect accurate, solves the problems referred to above that prior art exists.
Technical scheme of the present invention is achieved through the following technical solutions:
By closed container, the voltage stabilizing sliding sleeve, conduit, air intake opening, dry-type encapsulated pick-up unit is formed in the gas outlet, the voltage stabilizing sliding sleeve places closed container top, be connected with the outer wall slipper seal of closed container, between voltage stabilizing sliding sleeve and closed container, form an airtight voltage stabilizing space, a part of space is placed and is detected medium in the closed container, another part is the gas space, one end of conduit inserts in the interior detection medium of closed container, the other end passes closed container outer wall and voltage stabilizing space UNICOM, voltage stabilizing space UNICOM between air intake opening and voltage stabilizing sliding sleeve and the closed container, gas space UNICOM in gas outlet and the closed container, air intake opening, the voltage stabilizing space, conduit, detect medium, the gas space, the gas outlet forms a gas passage.
Dry hermetization testing method of the present invention is:
1. a part of space in closed container is placed and is detected medium, another part is the gas space, in the detection medium in the end insertion closed container of conduit, the other end passes the closed container outer wall and is connected with compressed air source, the gas space in the closed container and detected interior of articles UNICOM;
Compressed air source will have a certain pressure gas by conduit, detect medium, the gas space enters object to be detected inside;
3. keep working pressure constant at set-point;
4. the interior detection medium of placing of observation closed container has or not bubble to produce, if there is bubble to produce, shows that there is leakage in object to be detected, does not meet the sealing property requirement, otherwise then meets the sealing property requirement.
Adopt apparatus of the present invention, with gas outlet and the inner UNICOM of object to be detected, air intake opening and compressed air gas source UNICOM, pressurized air enters object to be detected inside at last by air intake opening, voltage stabilizing space, conduit, detection medium, the gas space, gas outlet, and the voltage stabilizing sliding sleeve makes the working pressure in the voltage stabilizing space constant in set-point by sliding on the closed container outer wall.When leaking appears in testee,, can find that bubble rises by observing the detection medium in the closed container; If do not leak, then there is not bubble to occur.Adopt the inventive method owing to need not object to be detected is immersed in the water, object to be detected does not contact with water, prevent to produce internal corrosion because of carrying out the sealing property detection, cancelled bulky soaking container simultaneously, reduce cost, easy to use, can detect the sealing property of testee intuitively, be not subjected to the influence of surrounding working environment.
That the present invention has is rational in infrastructure, prevent to detect medium enters low, the easy to detect characteristics such as accurately in testee inside, the little cost of volume.
Accompanying drawing is an embodiment of the invention structural representation.
Below in conjunction with accompanying drawing, further specify the present invention by embodiment.
In an embodiment, by closed container, voltage stabilizing sliding sleeve (5), conduit (3), air intake opening (6), dry-type encapsulated pick-up unit is formed in gas outlet (7), closed container is by base (1), transparent cylindrical shell (2), loam cake (4) closely connects to form, voltage stabilizing sliding sleeve (5) places the top of loam cake (4), be connected with last cover outer wall slipper seal, between voltage stabilizing sliding sleeve and loam cake, form an airtight voltage stabilizing space (8), a part of space is placed and is detected medium---water in the closed container, another part is the gas space (9), one end of conduit (3) inserts in the interior water of closed container, the other end passes closed container loam cake and voltage stabilizing space UNICOM, air intake opening (6) on the loam cake (4) and voltage stabilizing space (8) UNICOM, the gas space (9) UNICOM in gas outlet on the loam cake (4) and the closed container, air intake opening (6), voltage stabilizing space (8), conduit (3), water, the gas space (9), gas outlet (7) forms a gas passage.Embodiment is the sealing property that detects automotive transmission with the inventive method and device, a part of space in closed container is placed and is detected WATER AS FLOW MEDIUM, another part is the gas space, in the detection medium in the end insertion closed container of conduit, the other end passes the closed container outer wall and is connected with compressed air source, the gas space and the detected inner UNICOM of automotive transmission; The gas that compressed air source will have certain pressure enters detected automotive transmission inside by conduit, detection medium, the gas space; Keep working pressure constant at set-point; The water of observing in the closed container has or not bubble to produce, if there is bubble to produce, shows by the automotive transmission existence and leaks, and does not meet the sealing property requirement, otherwise then meets the sealing property requirement.Closed container adopts transparent cylindrical shell for the ease of observing bubble, also view window can be set on closed container.
Claims (3)
1, a kind of dry-type encapsulated pick-up unit, it is characterized in that by closed container, voltage stabilizing sliding sleeve (5), conduit (3), air intake opening (6), gas outlet (7) is formed, voltage stabilizing sliding sleeve (5) places closed container top, be connected with the outer wall slipper seal of closed container, between voltage stabilizing sliding sleeve and closed container, form an airtight voltage stabilizing space (8), a part of space in the closed container is placed and is detected medium, another part is the gas space (9), one end of conduit (3) inserts in the interior detection medium of closed container, the other end passes closed container outer wall and voltage stabilizing space (8) UNICOM, voltage stabilizing space (8) UNICOM between air intake opening (6) and voltage stabilizing sliding sleeve and the closed container, gas outlet (7) and the interior gas space UNICOM of closed container.
2, the dry-type encapsulated pick-up unit according to claim 1, it is characterized in that said closed container is closely connected to form by base (1), transparent cylindrical shell (2), loam cake (4), voltage stabilizing sliding sleeve (5) places the top of loam cake (4), be connected with last cover outer wall slipper seal, between voltage stabilizing sliding sleeve and loam cake, form an airtight voltage stabilizing space (8).
3, a kind of dry hermetization testing method is characterized in that this method step is:
A. a part of space in closed container is placed and is detected medium, another part is the gas space, in the detection medium in the end insertion closed container of conduit, the other end passes the closed container outer wall and is communicated with compressed air source, the gas space and detected interior of articles UNICOM;
B. compressed air source will have a certain pressure gas by conduit, detect medium, the gas space enters object to be detected inside;
C. keep working pressure constant at set-point;
D. observe the interior detection medium of placing of closed container and have or not bubble to produce,, show that there is leakage in object to be detected, does not meet the sealing property requirement, otherwise then meets the sealing property requirement if there is bubble to produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99104486 CN1241717A (en) | 1999-05-10 | 1999-05-10 | Dry hermetization testing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99104486 CN1241717A (en) | 1999-05-10 | 1999-05-10 | Dry hermetization testing method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1241717A true CN1241717A (en) | 2000-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99104486 Pending CN1241717A (en) | 1999-05-10 | 1999-05-10 | Dry hermetization testing method and device |
Country Status (1)
| Country | Link |
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| CN (1) | CN1241717A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068446B (en) * | 2007-06-04 | 2010-07-21 | 国光电器股份有限公司 | Loudspeaker air leakage detecting method and detector thereof |
| CN101995319A (en) * | 2010-10-22 | 2011-03-30 | 粱刚 | Airtightness testing machine |
| CN101059388B (en) * | 2007-05-22 | 2011-08-17 | 上海龙能自动化设备有限公司 | Container air-tightness detection method and its device |
| CN104236824A (en) * | 2014-09-05 | 2014-12-24 | 安徽伟嘉装备技术有限公司 | Speed changer DCT assembly gas tightness detecting technology |
| CN104903694A (en) * | 2012-11-30 | 2015-09-09 | 丰田自动车株式会社 | Leak test method |
| CN105171456A (en) * | 2015-10-15 | 2015-12-23 | 广西玉柴机器股份有限公司 | Mechanical dust-proof and liquid-proof auxiliary support device |
| CN108312828A (en) * | 2018-04-17 | 2018-07-24 | 动能（北京）科技发展有限公司 | A kind of compressed-air power per-vehicle equipment |
| CN110736590A (en) * | 2018-07-18 | 2020-01-31 | 上海中国弹簧制造有限公司 | Method and device for detecting sealing performance of end head of hollow stabilizer bar |
-
1999
- 1999-05-10 CN CN 99104486 patent/CN1241717A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059388B (en) * | 2007-05-22 | 2011-08-17 | 上海龙能自动化设备有限公司 | Container air-tightness detection method and its device |
| CN101068446B (en) * | 2007-06-04 | 2010-07-21 | 国光电器股份有限公司 | Loudspeaker air leakage detecting method and detector thereof |
| CN101995319A (en) * | 2010-10-22 | 2011-03-30 | 粱刚 | Airtightness testing machine |
| CN101995319B (en) * | 2010-10-22 | 2012-05-30 | 梁刚 | Airtightness testing machine |
| CN104903694A (en) * | 2012-11-30 | 2015-09-09 | 丰田自动车株式会社 | Leak test method |
| CN104903694B (en) * | 2012-11-30 | 2018-04-24 | 丰田自动车株式会社 | Leak test method |
| CN104236824A (en) * | 2014-09-05 | 2014-12-24 | 安徽伟嘉装备技术有限公司 | Speed changer DCT assembly gas tightness detecting technology |
| CN105171456A (en) * | 2015-10-15 | 2015-12-23 | 广西玉柴机器股份有限公司 | Mechanical dust-proof and liquid-proof auxiliary support device |
| CN108312828A (en) * | 2018-04-17 | 2018-07-24 | 动能（北京）科技发展有限公司 | A kind of compressed-air power per-vehicle equipment |
| CN108312828B (en) * | 2018-04-17 | 2020-06-30 | 动能（北京）科技发展有限公司 | Compressed air power vehicle-arranging device |
| CN110736590A (en) * | 2018-07-18 | 2020-01-31 | 上海中国弹簧制造有限公司 | Method and device for detecting sealing performance of end head of hollow stabilizer bar |
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