CN103674754B - A kind of device for testing sample venting - Google Patents
A kind of device for testing sample venting Download PDFInfo
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- CN103674754B CN103674754B CN201310643571.2A CN201310643571A CN103674754B CN 103674754 B CN103674754 B CN 103674754B CN 201310643571 A CN201310643571 A CN 201310643571A CN 103674754 B CN103674754 B CN 103674754B
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Abstract
A kind of device for testing sample venting, comprise primarily of the rotating part of copper sample groove, dividing plate and collecting board motherboard composition and the static part primarily of temperature-constant plate, mounting bracket, guide rail and rotating shaft composition, described copper sample groove is for providing sample chamber and possessing the ability being heated to require temperature, dividing plate is arranged on copper sample groove, and collecting board motherboard is arranged on dividing plate; Mounting bracket is connected with vacuum test room, mounting bracket is arranged in vacuum tank, temperature-constant plate, guide rail and rotating shaft are installed on mounting bracket, described rotating part rotates along the guide rail of described static part, make temperature-constant plate one side can with collecting board motherboard Full connected, described collecting board motherboard is closely fixed with the collecting board in the sample chamber provided by described copper sample groove, and described collecting board is for gathering sample volatile quantity.Apparatus of the present invention improve the accuracy that molecular contamination detects, and adapt to various different vacuum test room, have certain versatility.
Description
Technical field
The present invention relates to a kind of molecular contamination pick-up unit, more particularly, relate to the device of sample discharge quantity under a kind of novel test space material vacuum.
Background technology
Usually can there is polluting effect in some sensing surface of spacecraft self, cause the subsystem component capabilities of this surperficial subordinate to be degenerated, even lost efficacy.Therefore, must carry out polluting property detection to the various polymeric materials that spacecraft is applied, Detection of content to comprise in space vacuum material in the test of material volatile performance, vacuum can coagulate quality of materials loss test in volatile matter test, vacuum.
This type of detection system test philosophy is: homogeneous heating sample in vacuum environment, by weighing the change of sample and collecting board quality before and after this process, the coagulated volatile matter obtaining total mass loss He collect.
Test cell is positioned at vacuum test indoor, realizes the collection of depositing and polluting of sample, is the core component of this detection system.
Traditional test cell is formed primarily of heating plate and coldplate, and left and right distributes, and the instrument on the left side is heating plate, and sample is inserted in the groove of hole, and the outside of hole groove covers cover plate.The right be the back side of coldplate, screw and the chilled water copper pipe of fixing collecting board can be seen.
Traditional test unit heating part and cooling segment belong to one, and heating is difficult to control with the precision of cooling.Meanwhile, sample is not straight line from sample groove to coldplate collection, therefore often not many on collecting amount.
According to present stage space flight development, for ensureing the accuracy that molecular contamination detects and reliability, the new test cell of design is needed to replace traditional method, with the needs of satisfied development.
Summary of the invention
The present invention is directed to the defect existed in above-mentioned prior art, a kind of device for testing sample venting is proposed, improve the accuracy that molecular contamination detects, and adapt to various different vacuum test room (meeting vacuum level requirements), there is certain versatility.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of device for testing sample venting, comprise primarily of the rotating part of copper sample groove, dividing plate and collecting board motherboard composition and the static part primarily of temperature-constant plate, mounting bracket, guide rail and rotating shaft composition, described copper sample groove is for providing sample chamber and possessing the ability being heated to require temperature, dividing plate is arranged on copper sample groove, and collecting board motherboard is arranged on dividing plate; Mounting bracket is connected with vacuum test room, mounting bracket is arranged in vacuum tank, temperature-constant plate, guide rail and rotating shaft are installed on mounting bracket, described rotating part rotates along the guide rail of described static part, make temperature-constant plate one side can with collecting board motherboard Full connected, described collecting board motherboard is closely fixed with the collecting board in the sample chamber provided by described copper sample groove, and described collecting board is for gathering sample volatile quantity.
Described copper sample groove adopts copper plate to make, and copper plate is processed with groove, for filling heater strip, for giving the heating of copper sample groove.
Described dividing plate adopts 304 stainless steels to make.
Described collecting board motherboard adopts copper plate to make.
Described collecting board adopts the thick stainless steel of 0.3mm to make.
Described copper sample trench bottom is designed with roller structure, and the bearing in roller structure adopts zirconia full-ceramic bearing.
Fiberglass pad is all had for heat insulation at all threaded hole places be connected with described copper sample groove.
Described temperature-constant plate adopts copper plate to make, and its one side is welded with copper tube, and copper tube is connected with the intake-outlet of outside thermostatted water machine, by regulating water temperature, realizes the temperature value of temperature-constant plate requirement.
Described mounting bracket adopts 304 stainless steels to process, and adopts the mode that screw connects, similar section bar angle steel, but designs a triangle reinforcement at a certain distance in flanging inside, to ensure the strength and stiffness of mounting bracket.
Be provided with Self-lubricating bearing bush between described rotating shaft and copper sample groove, the rotation hole of bearing shell and copper sample groove is installed by interference fit.
Temperature-constant plate makes collecting board temperature be in by contact and requires temperature.
Collecting board is for gathering sample volatile quantity.
Mounting bracket and vacuum test room are connected by screw, and therefore this novel test cellular construction can adapt to various different vacuum test room (meeting vacuum level requirements), has certain versatility.
When apparatus of the present invention use, unclamped by the trip bolt rotating the rotating part that copper sample groove, dividing plate and collecting board motherboard can be formed, then follows track pull-out; Collecting board motherboard can from rotating part dismounting; Can place in the sample chamber of copper sample groove or take out sample; Collecting board is arranged on collecting board motherboard by screw; Before test, rotating part and temperature-constant plate should close, and tighten screw after guarantee fits together perfectly.
The beneficial effect that the present invention has:
1, improve the precision that sample discharge quantity is measured.
2, operation easily, convenient, save the time, alleviate the labour intensity of operating personnel, improve work efficiency.
3, the cost of sample gassing experiment can be saved, economic benefits.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is sample chamber structural representation.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
The device of test sample venting provided by the present invention, its structure such as Fig. 1 shows, comprises the rotating part of copper sample groove 1, dividing plate 2 and collecting board motherboard 3 composition.Dividing plate 2 is arranged on copper sample groove 1 by screw, and collecting board motherboard 3 is arranged on dividing plate 2 by screw.The threaded hole place be connected with copper sample groove 1 is all designed with fiberglass pad for heat insulation.
Copper sample groove 1 adopts copper plate to make, and this material under vacuo discharge quantity is little, has good thermal conductivity, and temperature when can meet test in each sample chamber controls and homogeneity.Plate is processed with the groove that 5mm is dark, for filling the heater strip that power is 600w, for giving the heating of copper sample groove.Temperature-constant plate back section is welded with copper tube, for cold water by lowering the temperature or heating up.
Dividing plate 2 is installed between copper sample board and temperature-constant plate.On dividing plate, the thickness of each baffle is only 0.75mm, and the degree of depth is 8.9mm, adds and is easily out of shape man-hour, even break.Therefore adopt strength and toughness good 304 stainless steels, this material is to add man-hour cutting force little, and be out of shape little, comprehensive mechanical performance is good, can finally meet each dimensional requirement, and this material discharge quantity is in a vacuum little simultaneously, can not affect the speed vacuumized.
Collecting board motherboard 3 adopts copper plate to make, and has fabulous thermal conductivity.Collecting board then adopts the thick stainless steel of 0.3mm to make, and surface smoothness can reach 0.8.Be fixed by the form of compressing tablet and screw between collecting board 12 and collecting board motherboard 3.
Copper sample groove 1 bottom design has roller structure in addition, and bearing in roller structure adopts zirconia full-ceramic bearing 7, and this bearing rigidity is high, need not lubricant grease, and dry runnability is good, ensure that the cleaning in a vacuum of whole mechanism, can not affect the speed vacuumized.
The static part of temperature-constant plate 4, mounting bracket 5, guide rail 6, Self-lubricating bearing bush 8 and rotating shaft 9 component devices.Mounting bracket 5 is arranged in vacuum tank by screw, and temperature-constant plate 4, guide rail 6 and rotating shaft 9 are all be arranged on mounting bracket 5 by screw.The screw place be connected with temperature-constant plate 4 is all designed with fiberglass pad for heat insulation.
Temperature-constant plate 4 adopts copper plate to make, and has good thermal conductivity.Its one side is welded with
copper tube, during welding adopt section weldering, be out of shape little, surface of contact is large.Its one side and collecting board motherboard Full connected, surface smoothness 1.6, flatness 0.05, the another side of the collecting board motherboard be in contact with it: surface smoothness 1.6, flatness 0.05.Copper tube on temperature-constant plate is connected with the intake-outlet of outside thermostatted water machine, by regulating water temperature, realizes the temperature value of temperature-constant plate requirement.
Mounting bracket 5 adopts 304 stainless steels to process, the mode that main employing screw connects, mounting support structure form class like section bar angle steel, but designs a triangle reinforcement in flanging inside every 100mm, ensure that the strength and stiffness of support all meet request for utilization.
Rotating shaft 9 adopts 45 steel to make, and process finishing carries out modifier treatment, increases its strength and stiffness.Be provided with Self-lubricating bearing bush 8 between rotating shaft 9 and copper sample groove 1, the rotation hole of bearing shell and copper sample groove 1 is in place by interference fit, rotating shaft 6 insert after, not apply oil can realize rotate smooth and easy.
Figure 2 shows that the structure that a sample chamber job comprises: sample chamber cover plate 10, sample ship 11 and collecting board 12.
Sample ship 11 adopts aluminium alloy to make, and shape is ship sample, for holding sample.Sample chamber cover plate 10 single screw is fastened on copper sample groove, prevents sample ship or sample from spilling.Collecting board 12 is arranged on collecting board motherboard 3 by screw, for ensureing the central coaxial degree requirement of sample chamber on its center and copper sample groove, collecting board motherboard carves the round line onesize with collecting board, and each installation alignment can ensure its repeatable accuracy.
All securing members used are stainless steel material, and this material has enough strength and stiffness, and has inoxidizability, can use for a long time.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. one kind for test sample venting device, it is characterized in that, comprise primarily of the rotating part of copper sample groove, dividing plate and collecting board motherboard composition and the static part primarily of temperature-constant plate, mounting bracket, guide rail and rotating shaft composition, described copper sample groove is for providing sample chamber and the ability possessing the temperature being heated to preset, dividing plate is arranged on copper sample groove, and collecting board motherboard is arranged on dividing plate; Mounting bracket is connected with vacuum test room, mounting bracket is arranged in vacuum tank, temperature-constant plate, guide rail and rotating shaft are installed on mounting bracket, described rotating part rotates along the guide rail of described static part, make temperature-constant plate one side can with collecting board motherboard Full connected, described collecting board motherboard is closely fixed with the collecting board in the sample chamber provided by copper sample groove, and described collecting board is for gathering sample volatile quantity.
2. the device for testing sample venting according to claim 1, is characterized in that, described copper sample groove adopts copper plate to make, and copper plate is processed with groove, for filling heater strip, for giving the heating of copper sample groove.
3. the device for testing sample venting according to claim 1, it is characterized in that, described dividing plate adopts 304 stainless steels to make.
4. the device for testing sample venting according to claim 1, is characterized in that, described collecting board motherboard adopts copper plate to make.
5. the device for testing sample venting according to claim 1, is characterized in that, described collecting board adopts the thick stainless steel of 0.3mm to make.
6. the device for testing sample venting according to claim 1, it is characterized in that, described copper sample trench bottom is designed with roller structure, and the bearing in roller structure adopts zirconia full-ceramic bearing.
7. the device for testing sample venting according to claim 1, is characterized in that all there is fiberglass pad for heat insulation at all threaded hole places be connected with described copper sample groove.
8. the device for testing sample venting according to claim 1, is characterized in that, described temperature-constant plate adopts copper plate to make, its one side is welded with copper tube, copper tube is connected with the intake-outlet of outside thermostatted water machine, by regulating water temperature, realizes the temperature value of temperature-constant plate requirement.
9. the device for testing sample venting according to claim 1, it is characterized in that, described mounting bracket adopts 304 stainless steels to process, adopt the mode that screw connects, similar section bar angle steel, but design a triangle reinforcement every the distance preset, to ensure the strength and stiffness of mounting bracket in flanging inside.
10. the device for testing sample venting according to claim 1, it is characterized in that, be provided with Self-lubricating bearing bush between described rotating shaft and copper sample groove, the rotation hole of bearing shell and copper sample groove is installed by interference fit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310643571.2A CN103674754B (en) | 2013-12-03 | 2013-12-03 | A kind of device for testing sample venting |
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| CN201310643571.2A CN103674754B (en) | 2013-12-03 | 2013-12-03 | A kind of device for testing sample venting |
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| CN103674754A CN103674754A (en) | 2014-03-26 |
| CN103674754B true CN103674754B (en) | 2016-03-16 |
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| CN107525911B (en) * | 2017-09-12 | 2023-08-08 | 滨州学院 | Test bed and test method for simulating generation of engine oil carbon deposit |
| CN114544420B (en) * | 2022-02-24 | 2023-10-10 | 北京卫星环境工程研究所 | Material outgassing characteristic testing device used in ultra-high vacuum environment |
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| US6125687A (en) * | 1998-08-20 | 2000-10-03 | International Business Machines Corporation | Apparatus for measuring outgassing of volatile materials from an object |
| CN1508530A (en) * | 2002-12-19 | 2004-06-30 | 上海电器科学研究所 | Electric insulated solvent impreghated resin vacuum performance measuring method |
| JP2009300167A (en) * | 2008-06-11 | 2009-12-24 | Nec Electronics Corp | Outgas collector and outgas collecting method |
| WO2012118141A1 (en) * | 2011-03-03 | 2012-09-07 | 三菱重工業株式会社 | Apparatus for inspecting filler in container, apparatus for filling filler, and method for inspecting filler in container |
| CN102818815A (en) * | 2012-08-16 | 2012-12-12 | 安徽万瑞冷电科技有限公司 | Thermal vacuum outgassing testing apparatus |
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2013
- 2013-12-03 CN CN201310643571.2A patent/CN103674754B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125687A (en) * | 1998-08-20 | 2000-10-03 | International Business Machines Corporation | Apparatus for measuring outgassing of volatile materials from an object |
| CN1508530A (en) * | 2002-12-19 | 2004-06-30 | 上海电器科学研究所 | Electric insulated solvent impreghated resin vacuum performance measuring method |
| JP2009300167A (en) * | 2008-06-11 | 2009-12-24 | Nec Electronics Corp | Outgas collector and outgas collecting method |
| WO2012118141A1 (en) * | 2011-03-03 | 2012-09-07 | 三菱重工業株式会社 | Apparatus for inspecting filler in container, apparatus for filling filler, and method for inspecting filler in container |
| CN102818815A (en) * | 2012-08-16 | 2012-12-12 | 安徽万瑞冷电科技有限公司 | Thermal vacuum outgassing testing apparatus |
Non-Patent Citations (1)
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| 航天器表面多层分子污染光学效应分析方法;王曙光等;《真空与低温》;20130331;第19卷(第1期);14-18 * |
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