CN204988873U - Aircraft sylphon seal pressure test anchor clamps - Google Patents
Aircraft sylphon seal pressure test anchor clamps Download PDFInfo
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- CN204988873U CN204988873U CN201520777237.0U CN201520777237U CN204988873U CN 204988873 U CN204988873 U CN 204988873U CN 201520777237 U CN201520777237 U CN 201520777237U CN 204988873 U CN204988873 U CN 204988873U
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- adapter
- aircraft
- pressure test
- sealing joint
- end sealing
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Abstract
Aircraft sylphon seal pressure test anchor clamps, it opens the round hole to correspond respectively on two upright walls that incline relatively of the anchor clamps bodies (2) of inflexible U -shaped, pipeline fixed block (3) in shaft hole are opened at the middle part that wherein imbeds a disc in the round hole of one side, the interpolation of opposite side round hole pack into one adapter (1) or pipe end sealing joint (5), wherein, adapter (1) main part is cylindrically, the axial middle part is opened and is link up the shaft hole, pipe end sealing joint (5) main part is cylindrically, it is in the anchor clamps bodies (2) outside one end and seals, there is recessed circular slot at two terminal surface middle parts of standing between the wall that are in the anchor clamps bodies (2). To the problem of bellows location, conveniently carry out compression test moreover simultaneously in the time of can solving the pressure test of roll wave processing pipeline in the airplane equipment effectively, easily loading and unloading with manipulate, safe and reliable has the commonality, the sealed experiment of the airborne bellows of applicable all below 0.5inch.
Description
Technical field
The utility model relates to the experiment auxiliary device technology of airplane equipment corrugated tube pipeline material, especially aircraft sylphon seal pressure test fixture.
Background technology
Roll wave pipe also refers to corrugated tube, and corrugated tube refers to the tubular elastomeric sensitive element connected into along folding retractable direction with collapsible wrinkle sheet.Corrugated tube is widely used in instrument and meter, and main application is the measuring sensor as pressure measuring instruments, pressure is converted to displacement or power.Corrugated tube tube wall is thinner, and sensitivity is higher, and measurement range is that tens of handkerchief is to tens of MPa.Its openend is fixed, and sealed end is in free state, and utilizes auxiliary volute spring or reed to increase elasticity.Extend along tube length direction under the effect of internal pressure during work, make movable end produce the displacement becoming certain relation with pressure.Movable end drives pointer to get final product the size of direct indicated pressure.Corrugated tube usually combines with displacement transducer the pressure transducer forming and export as electricity, is sometimes also used as isolated component.Stretching, extension due to corrugated tube requires larger volume change, and therefore its response speed is lower than Bourdon tube.Corrugated tube is suitable for measuring low pressure.Sealing is the performance that finger element ensures not leak under certain inside and outside differential pressure action.During the work of corrugated tube class component, inner chamber is filled with gas or liquid medium, and has certain pressure, therefore must ensure sealing.The detection method of sealing has pressurized seal test, leak test, liquid pressing test, detects with suds or helium mass spectrometer leak detector.
Compression resistance is an important parameter of corrugated tube performance.Corrugated tube is when normal temperature, waveform there is not the maximum static pressure power that plastic yield can bear, be the maximum compression resistance of corrugated tube in the ordinary course of things, corrugated tube works, so it must bear this pressure and not produce plastic yield in the whole course of work under certain pressure (interior pressure or external pressure).
In fact the compression resistance of corrugated tube belongs to the intensity category of corrugated tube.The key calculated is stress analysis, as long as the stress namely analyzing maximum stress point on the stress corrugated tube tube wall on corrugated tube tube wall is no more than the yield strength of material, the pressure suffered by corrugated tube would not reach its compression resistance.Same corrugated tube, when other condition of work is identical, will be got well by stability during interior pressure by outer pressure ratio, so, by maximum compression resistance ratio during external pressure effect by high during interior pressure.
When corrugated tube two ends are fixed, if when within it chamber passes into enough large pressure, corrugated tube crest place likely explosion damages.When corrugated tube starts to occur explosion, the force value of bellows interior is called burst pressure.Burst pressure is the parameter characterizing the maximum compressive resistance of corrugated tube.Corrugated tube is in the whole course of work, and its working pressure is much smaller than burst pressure, otherwise corrugated tube is by crack damage.When corrugation length is less than or equal to external diameter, its result of calculation and actual burst pressure very close; Much lower to its actual burst pressure of slender type corrugated tube.Burst pressure is approximately the 3-10 of permissible working pressure doubly.
Corrugated tube is adding man-hour through roll wave manufacture, carry out pressure test in advance, to ensure that pipeline is not revealed, and in prior art, to the demand that tubing is fixing when not having suitable device or aid to meet experiment, meanwhile, temporary connector can not be increased again carry out realization and be threaded in existing test unit structure, which results in operating difficulties, also directly affect carrying out and the efficiency of this generic operation.
Utility model content
The purpose of this utility model is to provide aircraft sylphon seal pressure test fixture, proposes the quick switching fixture of pipeline water-tight test, effectively to solve the problems referred to above of prior art.
The purpose of this utility model will be realized by following technical measures: comprise adapter, clamp body, pipeline fixed block and end sealing joint; On two walls that two sides of the clamp body of the U-shaped of rigidity are relative, correspondence opens circular hole respectively, wherein a mother rib lateral rotundum is embedded in the pipeline fixed block that axis hole is opened at a discoidal middle part, opposite side circular hole interpolation loads an adapter or end sealing joint, wherein, adapter main body is cylindrical, and axially through axis hole is opened at middle part, and end sealing adapter body is cylindrical, it is in clamp body 2 lateral ends and closes, and one end Middle face between two walls being in clamp body has recessed circular groove.
Especially, two clamp bodies install respectively adapter and end sealing joint with the use of, and with the side wall of installation pipeline fixed block in opposite directions near layout, the wall that namely two clamp bodies install adapter or end sealing joint is respectively in outside.
Especially, recessed circular groove is had in the middle part of adapter inner face, this circular groove is communicated with through axis hole, simultaneously, the middle shaft part necking down of adapter outer end is outstanding and outer rim has annular protrusion, adapter outer end outer rim external diameter is less than 1/2 of the axial mid-section body external diameter of adapter, and on the outer wall between adapter outer end and adapter axial main body, hoop is outstanding is fixed with nut.
Especially, end sealing joint outer end hoop is outstanding is fixed with nut.
Especially, on two walls that two sides of clamp body are relative, correspondence opens same diameter circular hole respectively.
Especially, open axis hole in the middle part of pipeline fixed block, pipeline fixed block external diameter is identical with the Circularhole diameter that the wall of clamp body is opened.
Advantage of the present utility model and effect: the problem of when effectively can solve the pressure test of roll wave processing pipeline in airplane equipment, corrugated tube being located, and conveniently carry out pressure test simultaneously, be easy to handling and operation use, safe and reliable and there is versatility, be applicable to the sealing experiment of all aircraft corrugated tubes of below 0.5inch.
Accompanying drawing explanation
Fig. 1 is the structural representation that the corrugated tube two ends in the utility model embodiment 1 are fixedly mounted in fixture;
Fig. 2 is adapter cut-open view in the utility model embodiment 1;
Fig. 3 is the end sealing joint cut-open view of the utility model fixture;
Fig. 4 is the clamp body cut-open view of the utility model fixture;
Fig. 5 be the utility model fixture pipeline fixed block front view.
Reference numeral comprises:
Adapter 1, clamp body 2, pipeline fixed block 3, corrugated tube to be measured 4, end sealing joint 5.
Embodiment
The utility model principle is, corrugated tube tube wall is thinner, the way of usually fixing rigidity tubing can not be taked when fixing directly to grip, therefore, need through row at pipe end axially two point locations, namely carry out righting at the outer wall close to pipe end to fix, meanwhile, carry out sealing in end surfaces outer rim and fix, and need to control effectively to these two fixed pivot spacing, better preferably to adapt to the characteristic of corrugated tube self, meet the requirement of leakage test completely.
The utility model comprises: adapter 1, clamp body 2, pipeline fixed block 3 and end sealing joint 5.
In the utility model, fixture comprises two parts, namely for the part A of fixing live end and the part B for fixing seal end, described part A is provided with the adapter 1 for connecting sealing load testing equipment, corrugated tube 4 to be measured can be connected with front testing equipment effectively by part A, in warranty test process, test(ing) medium is smoothly by pipeline, this end of corrugated tube 4 to be measured is carried out effective sealing fixing simultaneously; Described part B is mainly used in the other end sealing corrugated tube 4 to be measured, whole pipeline is sealed, in process of the test, test(ing) medium remains in corrugated tube 4 pipeline to be measured, under carry out the condition of pressurizeing after central shaft hole injection test medium in adapter 1, whether the adapter 1 detecting the manufacture of roll wave operation meets the requirement of leakage test.
The utility model operationally, as shown in Figure 1, first corrugated tube 4 one end to be measured is fixed on clamp body 2 by using the pipeline fixed block 3 of outer socket, fix, then being bolted by adapter 1 is screwed on clamp body 2, the strength only needing hand to twist just can realize sealing, ensures adapter 1 and corrugated tube 4 close contact to be measured; Then, corrugated tube 4 other end to be measured is fixed on another clamp body 2 too, and closes the mouth of pipe with end sealing joint 5.Further, after adjusting, adapter 1 outer end is connected with equipment, perfusion and the pressure pipeline of its central shaft hole and testing equipment are communicated with, and then successively can carry out pouring into test(ing) medium in corrugated tube 4 to be measured at the trial, pressurize subsequently and keep time of requirement.
The utility model due to fixture little, therefore handled easily and dismounting, meanwhile, can meet the testing requirements of different size corrugated tube 4 to be measured by changing pipeline fixed block 3.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, on two walls that two sides of the clamp body 2 of the U-shaped of rigidity are relative, correspondence opens circular hole respectively, wherein a mother rib lateral rotundum is embedded in the pipeline fixed block 3 that axis hole is opened at a discoidal middle part, opposite side circular hole interpolation loads an adapter 1 or end sealing joint 5, wherein, adapter 1 main body is cylindrical, axially through axis hole is opened at middle part, end sealing joint 5 main body is cylindrical, it is in clamp body 2 lateral ends and closes, and one end Middle face between two walls being in clamp body 2 has recessed circular groove.
In aforementioned, two clamp bodies 2 install respectively adapter 1 and end sealing joint 5 with the use of, and with the side wall of installation pipeline fixed block 3 in opposite directions near layout, the wall that namely two clamp bodies 2 install adapter 1 or end sealing joint 5 is respectively in outside.
In aforementioned, as shown in Figure 2, recessed circular groove is had in the middle part of adapter 1 inner face, this circular groove is communicated with through axis hole, simultaneously, the middle shaft part necking down of adapter 1 outer end is outstanding and outer rim has annular protrusion, and adapter 1 outer end outer rim external diameter is less than 1/2 of the axial mid-section body external diameter of adapter 1, and on the outer wall between adapter 1 outer end and adapter 1 axial main body, hoop is outstanding is fixed with nut.
In aforementioned, as shown in Figure 3, end sealing joint 5 outer end hoop is outstanding is fixed with nut.
In aforementioned, as shown in Figure 4, on two walls that two sides of clamp body 2 are relative, correspondence opens same diameter circular hole respectively.
In aforementioned, as shown in Figure 5, open axis hole in the middle part of pipeline fixed block 3, pipeline fixed block 3 external diameter is identical with the Circularhole diameter that the wall of clamp body 2 is opened.
In the present embodiment, corrugated tube to be measured 4 diameter 0.25 inch rolled for aircraft carries out roll wave according to automotive engineer association of SAE U.S. industry standard AS5131, pressure test need be carried out according to designing requirement after roll wave, force value is 3 minutes 75psi dwell times, uses this fixture then to efficiently solve this problem.
In explanation of the present utility model, embodiment only for illustration of described technical scheme, and is not used in restriction scope of the present utility model.Ability and technician, after having read the content that the utility model records, can make various changes or modifications, but these equivalent form of values fall within the application's appended claims limited range equally to the utility model.
Claims (6)
1. aircraft sylphon seal pressure test fixture, comprises adapter (1), clamp body (2), pipeline fixed block (3) and end sealing joint (5), it is characterized in that, on two walls that two sides of the clamp body (2) of the U-shaped of rigidity are relative, correspondence opens circular hole respectively, wherein a mother rib lateral rotundum is embedded in the pipeline fixed block (3) that axis hole is opened at a discoidal middle part, opposite side circular hole interpolation loads an adapter (1) or end sealing joint (5), wherein, adapter (1) main body is cylindrical, axially through axis hole is opened at middle part, end sealing joint (5) main body is cylindrical, it is in clamp body (2) lateral ends and closes, one end Middle face between two walls being in clamp body (2) has recessed circular groove.
2. aircraft sylphon seal pressure test fixture as claimed in claim 1, it is characterized in that, two clamp bodies (2) install respectively adapter (1) and end sealing joint (5) with the use of, and with the side wall of installation pipeline fixed block (3) in opposite directions near layout, the wall that namely two clamp bodies (2) install adapter (1) or end sealing joint (5) is respectively in outside.
3. aircraft sylphon seal pressure test fixture as claimed in claim 1, it is characterized in that, recessed circular groove is had in the middle part of adapter (1) inner face, this circular groove is communicated with through axis hole, simultaneously, the middle shaft part necking down of adapter (1) outer end is outstanding and outer rim has annular protrusion, adapter (1) outer end outer rim external diameter is less than 1/2 of the axial mid-section body external diameter of adapter (1), and on the outer wall between adapter (1) outer end and adapter (1) axial main body, hoop is outstanding is fixed with nut.
4. aircraft sylphon seal pressure test fixture as claimed in claim 1, is characterized in that, end sealing joint (5) outer end hoop is outstanding is fixed with nut.
5. aircraft sylphon seal pressure test fixture as claimed in claim 1, is characterized in that, on two walls that two sides of clamp body (2) are relative, correspondence opens same diameter circular hole respectively.
6. aircraft sylphon seal pressure test fixture as claimed in claim 1, it is characterized in that, axis hole is opened at pipeline fixed block (3) middle part, and pipeline fixed block (3) external diameter is identical with the Circularhole diameter that the wall of clamp body (2) is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777237.0U CN204988873U (en) | 2015-10-08 | 2015-10-08 | Aircraft sylphon seal pressure test anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777237.0U CN204988873U (en) | 2015-10-08 | 2015-10-08 | Aircraft sylphon seal pressure test anchor clamps |
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| Publication Number | Publication Date |
|---|---|
| CN204988873U true CN204988873U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520777237.0U Active CN204988873U (en) | 2015-10-08 | 2015-10-08 | Aircraft sylphon seal pressure test anchor clamps |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738051A (en) * | 2016-04-05 | 2016-07-06 | 苏州盟川自动化科技有限公司 | Bellows airtightness detection device and detection method therefor |
| CN106289959A (en) * | 2016-08-17 | 2017-01-04 | 中国商用飞机有限责任公司 | Detachable built-up jig for the test of aviation pipeline bonding strength |
| CN107144464A (en) * | 2017-06-19 | 2017-09-08 | 深圳市蓝丝腾科技有限公司 | Aircraft sylphon seal pressure test fixture |
| CN109029863A (en) * | 2018-08-21 | 2018-12-18 | 哈尔滨锅炉厂有限责任公司 | A kind of no case type heat exchanger pipe end tightness test device and method |
-
2015
- 2015-10-08 CN CN201520777237.0U patent/CN204988873U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738051A (en) * | 2016-04-05 | 2016-07-06 | 苏州盟川自动化科技有限公司 | Bellows airtightness detection device and detection method therefor |
| CN105738051B (en) * | 2016-04-05 | 2019-09-20 | 苏州盟川自动化科技有限公司 | Bellows air tightness detection equipment and its detection method |
| CN106289959A (en) * | 2016-08-17 | 2017-01-04 | 中国商用飞机有限责任公司 | Detachable built-up jig for the test of aviation pipeline bonding strength |
| CN106289959B (en) * | 2016-08-17 | 2018-10-12 | 中国商用飞机有限责任公司 | Detachable built-up jig for the experiment of aviation pipeline bonding strength |
| CN107144464A (en) * | 2017-06-19 | 2017-09-08 | 深圳市蓝丝腾科技有限公司 | Aircraft sylphon seal pressure test fixture |
| CN109029863A (en) * | 2018-08-21 | 2018-12-18 | 哈尔滨锅炉厂有限责任公司 | A kind of no case type heat exchanger pipe end tightness test device and method |
| CN109029863B (en) * | 2018-08-21 | 2020-07-10 | 哈尔滨锅炉厂有限责任公司 | Device and method for testing air tightness of pipe end of shell-free heat exchanger |
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