CN104390583A - Strain gauge wire connecting component for high-temperature strain measurement and connecting method thereof - Google Patents
Strain gauge wire connecting component for high-temperature strain measurement and connecting method thereof Download PDFInfo
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- CN104390583A CN104390583A CN201410647159.2A CN201410647159A CN104390583A CN 104390583 A CN104390583 A CN 104390583A CN 201410647159 A CN201410647159 A CN 201410647159A CN 104390583 A CN104390583 A CN 104390583A
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- strainometer
- conductive metal
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- metal pipe
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Abstract
The invention discloses a strain gauge wire connecting component for high-temperature strain measurement and a connecting method thereof. The connecting component comprises a hollow conductive metal tube, wherein the hollow conductive metal tube is used for connecting an outgoing wire and a signal transmission line of a strain gauge; the outgoing line and the signal transmission line are inserted into the two ends of the hollow conductive metal tube respectively; the connection between the outgoing line and the signal transmission line of the strain gauge is finished through a clamping mode of flattening the hollow conductive metal tube. The outgoing line is connected with the signal transmission line by using the hollow copper tube flattening clamping mode; compared with a normal soldering method, the method has the advantages that a connection part can withstand the environment temperature over 500 DEG C and the connection is firm and reliable in a long-term working process. The component and the method have the characteristics of easiness in operation, low cost, no requirement on special professional equipment and easiness in implementation.
Description
Technical field
The present invention relates to resistor straining testing technique field, more specifically, strainometer wire connecting part relating to a kind of high temperature strain measurement and attaching method thereof.
Background technology
" resistor straining testing " utilizes the strainometer be arranged on testpieces to convert mechanical quantity (as strain, displacement etc.) to resistance variations, and become voltage, electric current or power stage by specialized equipment, thus obtain the method for testing of reading strain.Normal abbreviation " electric detecting technology " or " electrical measuring method ".
In low temperature, normal temperature or middle temperature resistor straining testing, the connection between the extension line of strainometer and signal transmssion line generally all adopts soldering connected mode.It is 300 DEG C that soldering connects the maximum temperature that can bear.
In existing resistor straining testing, the connection between the extension line of strainometer and signal transmssion line adopts soldering connected mode.And in the strain testing of high-temperature unit of aircraft engine, because the operating ambient temperature of a lot of testpieces is all more than 500 DEG C, far away higher than 300 DEG C.Higher than in the aeromotor strain testing of 300 DEG C of temperature, if still adopt soldering connected mode to connect extension line and the signal transmssion line of strainometer, the soldering connecting portion of wire will be fused very soon at higher than the temperature of 300 DEG C, loss signal transmitting effect.
Therefore, existing employing soldering connected mode connects extension line and the signal transmssion line of strainometer, is not suitable for higher than the connection between strain ga(u)ge extension line during 300 DEG C of temperature and signal transmssion line.But at home and abroad publish with in issued books and periodicals data, do not reported other relevant methods of attachment.
Summary of the invention
The technical problem to be solved in the present invention is the technical deficiency for link between the extension line of existing strainometer and signal transmssion line, a kind of strainometer wire connecting part of high temperature strain measurement is provided, be applied to the extension line of strainometer to be connected with between signal transmssion line, the extension line of strainometer and the link of signal transmssion line in prior art can be solved well and run into the shortcoming easily fused higher than 300 DEG C of temperature.
Another technical matters that the present invention will solve is to provide the extension line of described strainometer and the method for attachment of signal transmssion line.
Object of the present invention is achieved by the following technical programs:
A kind of strainometer wire connecting part of high temperature strain measurement is provided, comprise hollow conductive metal pipe, described hollow conductive metal pipe is used for connecting the extension line of strainometer and signal transmssion line, described extension line and signal transmssion line are inserted respectively the two ends of hollow conductive metal pipe, by the snap fit by hollow conductive metal pipe press flat forming, complete the connection between the extension line of strainometer and signal transmssion line; The part that described extension line and signal transmssion line insert hollow conductive metal pipe is metal bare wire.
Preferably, described hollow conductive metal pipe is hollow copper tubing.
The internal diameter of described hollow copper tubing will be equal to, or greater than the diameter of described extension line or signal transmssion line.Preferably, the internal diameter of described hollow copper tubing is greater than the diameter of described extension line or signal transmssion line, handled easily.
According to extension line or the signal transmssion line regular size of the strainometer of existing high temperature strain measurement, the internal diameter of preferred described hollow copper tubing is 1mm, and length is 10mm, can realize the object of the invention well, can uniform specification be kept again, be convenient to produce process in enormous quantities.
The present invention provides a kind of method of attachment of strainometer wire of high temperature strain measurement simultaneously, do not abandon existing soldering connected mode, but by the extension line of strainometer and signal transmssion line respectively from the two ends Inserting Tube of one section of hollow conductive metal pipe, by by hollow conductive metal pipe press flat forming, clamping extension line and signal transmssion line, complete the connection between the extension line of strainometer and signal transmssion line; The part that described extension line and signal transmssion line insert hollow copper tubing is metal bare wire.Not only can solve the extension line of strainometer and the link of signal transmssion line in prior art well and run into the shortcoming easily fused higher than 300 DEG C of temperature, and convenience more safer than soldering operation.After hollow conductive metal pipe is ready to, only needs the instrument that hollow conductive metal pipe can be flattened or equipment to complete the present invention, such as, can adopt tiger's jaw pliers.
Particularly, the method for attachment of the strainometer wire of high temperature strain measurement of the present invention comprises the following steps:
S1. hollow conductive metal pipe is prepared;
S2. get a hollow conductive metal pipe, first of strainometer extension line is inserted one end of hollow conductive metal pipe, the first signal transmssion line is inserted the other end of hollow conductive metal pipe simultaneously;
S3., when first extension line and the first signal transmssion line that ensure strainometer insert hollow conductive metal pipe two ends respectively well, hollow conductive metal pipe is squeezed into flat pattern;
S4. the connection between strainometer other extension line and signal transmssion lines is completed according to the method for operating of S2 and S3.
As previously mentioned, described hollow conductive metal pipe is preferably hollow copper tubing.
The internal diameter of described hollow copper tubing will be equal to, or greater than the diameter of described extension line or signal transmssion line.Preferably, the internal diameter of described hollow copper tubing is greater than the diameter of described extension line or signal transmssion line, handled easily.
According to extension line or the signal transmssion line regular size of the strainometer of existing high temperature strain measurement, the internal diameter of preferred described hollow copper tubing is 1mm, and length is 10mm, can realize the object of the invention well, can uniform specification be kept again, be convenient to produce process in enormous quantities.
The present invention has following beneficial effect:
The present invention creatively designs one section of hollow conductive metal pipe extension line as strainometer and the link of signal transmssion line, scheme and operation on all very simple, but solve the technical barrier of long-standing problem this area, namely the soldering connected mode continued to use for a long time makes the extension line of strainometer and the coupling part of signal transmssion line be merely able to the shortcoming of the environment temperature of bearing the highest 300 DEG C, the environment temperature of more than 500 DEG C, Be very effective can be stood in the coupling part of extension line of the present invention and signal transmssion line.
The extension line of strainometer of the present invention and the method for attachment of signal transmssion line should use very flexible, are applicable to the strainometer of two extension lines, a twin-core signal transmssion line or two single core signal transmssion lines.Adopt the extension line and the signal transmssion line that flatten hollow copper tubing snap fit and connect strainometer, simple to operate, with low cost, to equipment without special professional requirement, be easy to realize.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is syndeton schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.Embodiment of the present invention accompanying drawing, only for exemplary illustration, can not be interpreted as limitation of the present invention.To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
embodiment 1
The present embodiment provides a kind of strainometer wire connecting part of high temperature strain measurement, comprise hollow copper tubing 2, described hollow copper tubing 2 is used for connecting the extension line 1 of strainometer and signal transmssion line 3, described extension line 1 and signal transmssion line 3 are inserted respectively the two ends of hollow copper tubing 2, by the snap fit by hollow copper tubing 2 press flat forming, complete the connection between the extension line 1 of strainometer and signal transmssion line 3.
In the present embodiment, the internal diameter of described hollow copper tubing 2 is greater than the diameter of described extension line 1 or signal transmssion line 3.
The inventive method is applied to the strainometer of high temperature strain measurement with two extension lines, two single core signal transmssion lines by the present embodiment, and method of attachment comprises the following steps:
S1. the hollow copper tubing prepare some diameters, being of convenient length;
S2. get a hollow copper tubing, first of strainometer extension line is inserted one end of this root hollow copper tubing, the first signal transmssion line is inserted the other end of this root hollow copper tubing simultaneously;
S3., when first extension line and the first signal transmssion line that ensure strainometer insert hollow copper tubing two ends respectively well, utilize tiger's jaw pliers that hollow copper tubing is squeezed into flat pattern; After hollow copper tubing press flat forming, first extension line of strainometer and the first signal transmssion line have just been coupled together by the hollow copper tubing flattened;
S4. separately get a hollow copper tubing, second of strainometer extension line is inserted one end of this root hollow copper tubing, secondary signal transmission line is inserted the other end of this root hollow copper tubing simultaneously;
S5., when second extension line and secondary signal transmission line that ensure strainometer insert second hollow copper tubing two ends respectively well, utilize tiger's jaw pliers that second hollow copper tubing is squeezed into flat pattern; After hollow copper tubing press flat forming, second extension line and second signal transmssion line of strainometer have just been coupled together by the hollow copper tubing flattened.
In the present embodiment, described in the first signal transmssion line described in S2 and S4, secondary signal transmission line inserts the part of hollow copper tubing is metal bare wire.
Utilize hollow copper tubing, the extension line of strainometer and signal transmssion line are inserted respectively the two ends of hollow copper tubing, by the snap fit by hollow copper tubing press flat forming, complete the connection between the extension line of strainometer and signal transmssion line.
The strainometer connecting extension line and signal transmssion line according to the inventive method is carried out applying and verifying in the vibration stress test of the axial diffuser in certain turboshaft engine footpath, combustion chamber flame drum, application result shows, use method of attachment of the present invention, connecting portion can stand the environment temperature of more than 500 DEG C, and is connected firmly in long-term work process, reliably.
Embodiment 2
The strainometer wire connecting part of described high temperature strain measurement is with embodiment 1.
The inventive method is applied to the strainometer of high temperature strain measurement with two extension lines, a twin-core signal transmssion line by the present embodiment, and method of attachment comprises the following steps:
S1. the hollow copper tubing prepare some diameters, being of convenient length; Twin-core signal transmssion line one end is removed outer, spill the metal-cored of two suitable lengths;
S2. get a hollow copper tubing, first of strainometer extension line is inserted one end of this root hollow copper tubing, simultaneously by the other end of signal transmssion line wherein one section of this root hollow copper tubing of metal-cored insertion;
S3. when ensure first extension line of strainometer and signal transmssion line wherein one section metal-cored insert hollow copper tubing two ends respectively well, utilize tiger's jaw pliers that hollow copper tubing is squeezed into flat pattern; After hollow copper tubing press flat forming, first extension line of strainometer and signal transmssion line wherein one section of metal-cored hollow copper tubing by flattening just have coupled together;
S4. separately get a hollow copper tubing, second of strainometer extension line is inserted one end of this root hollow copper tubing, simultaneously by the other end of metal-cored for signal transmssion line another section this root hollow copper tubing of insertion;
S5. when ensure strainometer second extension line and signal transmssion line another section is metal-cored insert second hollow copper tubing two ends respectively well, utilize tiger's jaw pliers that second hollow copper tubing is squeezed into flat pattern; After hollow copper tubing press flat forming, second extension line of strainometer and the metal-cored hollow copper tubing by flattening of signal transmssion line another section have just coupled together.
In the present embodiment, described in S2, the first signal transmssion line inserts the part of hollow copper tubing is metal bare wire.
The strainometer connecting extension line and signal transmssion line according to the inventive method is carried out applying and verifying in the vibration stress test of the axial diffuser in certain turboshaft engine footpath, combustion chamber flame drum, application result shows, use method of attachment of the present invention, connecting portion can stand the environment temperature of more than 500 DEG C, and is connected firmly in long-term work process, reliably.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included in of the present invention comprising within scope.
Claims (7)
1. the strainometer wire connecting part of a high temperature strain measurement, it is characterized in that, comprise hollow conductive metal pipe, described hollow conductive metal pipe is used for connecting the extension line of strainometer and signal transmssion line, described extension line and signal transmssion line are inserted respectively the two ends of hollow conductive metal pipe, by the snap fit by hollow conductive metal pipe press flat forming, complete the connection between the extension line of strainometer and signal transmssion line; The part that described extension line and signal transmssion line insert hollow conductive metal pipe is metal bare wire.
2. the strainometer wire connecting part of high temperature strain measurement according to claim 1, it is characterized in that, described hollow conductive metal pipe is hollow copper tubing.
3. the strainometer wire connecting part of high temperature strain measurement according to claim 2, it is characterized in that, the internal diameter of described hollow copper tubing is greater than the diameter of described extension line or signal transmssion line.
4. the strainometer wire connecting part of high temperature strain measurement according to claim 3, it is characterized in that, the internal diameter of described hollow copper tubing is 1mm, and length is 10mm.
5. the method for attachment of the strainometer wire of a high temperature strain measurement, it is characterized in that, respectively from the two ends Inserting Tube of one section of hollow conductive metal pipe by the extension line of strainometer and signal transmssion line, by by hollow conductive metal pipe press flat forming, clamping extension line and signal transmssion line, complete the connection between the extension line of strainometer and signal transmssion line; The part that described extension line and signal transmssion line insert hollow copper tubing is metal bare wire.
6. the method for attachment of the strainometer wire of high temperature strain measurement according to claim 5, is characterized in that, comprise the following steps:
S1. hollow conductive metal pipe is prepared;
S2. get a hollow conductive metal pipe, first of strainometer extension line is inserted one end of hollow conductive metal pipe, the first signal transmssion line is inserted the other end of hollow conductive metal pipe simultaneously;
S3., when first extension line and the first signal transmssion line that ensure strainometer insert hollow conductive metal pipe two ends respectively well, hollow conductive metal pipe is squeezed into flat pattern;
S4. the connection between strainometer other extension line and signal transmssion lines is completed according to the method for operating of S2 and S3.
7. the method for attachment of the strainometer wire of high temperature strain measurement according to claim 6, it is characterized in that, described hollow conductive metal pipe is hollow copper tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647159.2A CN104390583A (en) | 2014-11-14 | 2014-11-14 | Strain gauge wire connecting component for high-temperature strain measurement and connecting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647159.2A CN104390583A (en) | 2014-11-14 | 2014-11-14 | Strain gauge wire connecting component for high-temperature strain measurement and connecting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104390583A true CN104390583A (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647159.2A Pending CN104390583A (en) | 2014-11-14 | 2014-11-14 | Strain gauge wire connecting component for high-temperature strain measurement and connecting method thereof |
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| CN (1) | CN104390583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577686A (en) * | 2020-12-16 | 2021-03-30 | 天津航天瑞莱科技有限公司 | High-temperature vibration characteristic test system for composite material aircraft engine flame tube |
-
2014
- 2014-11-14 CN CN201410647159.2A patent/CN104390583A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 未知: "《广电电器网-http://www.go-gddq.com/html/s55/2013-12/1211356.htm》", 22 December 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577686A (en) * | 2020-12-16 | 2021-03-30 | 天津航天瑞莱科技有限公司 | High-temperature vibration characteristic test system for composite material aircraft engine flame tube |
| CN112577686B (en) * | 2020-12-16 | 2024-04-02 | 中国航发商用航空发动机有限责任公司 | High-temperature vibration characteristic test system for composite material aero-engine flame tube |
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Application publication date: 20150304 |
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