CN202141649U - High-temperature resistance spring type metal material deformation measuring device - Google Patents
High-temperature resistance spring type metal material deformation measuring device Download PDFInfo
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- CN202141649U CN202141649U CN201120087096U CN201120087096U CN202141649U CN 202141649 U CN202141649 U CN 202141649U CN 201120087096 U CN201120087096 U CN 201120087096U CN 201120087096 U CN201120087096 U CN 201120087096U CN 202141649 U CN202141649 U CN 202141649U
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- high temperature
- fixture block
- temperature resistant
- clamping block
- bar
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Abstract
The utility model relates to a high-temperature resistance spring type metal material deformation measuring device which comprises high-temperature resistance springs, an upper clamping block, a lower clamping block, extension rods, a deformation sensor and a high-temperature furnace. Both the upper clamping block and the lower clamping block are arranged in the high-temperature furnace; high-temperature resistance springs are arranged at the end parts of the upper clamping block and the lower clamping block and extension rods are fixedly arranged at the end parts of the upper clamping block and the lower clamping block; the clamping force of the high-temperature resistance springs leads cutting openings of the upper clamping block and the lower clamping block to uniformly enter inwards during the processes of lengthening and thinning of a test sample due to high-temperature stretching and firmly clamping the test sample all the time; and the lower ends of the extension rods stretch out from a lower opening of the high-temperature furnace and are connected with the deformation sensor at two symmetrical sides of the test sample to form a double-side measuring system so as to measure the deformation value of the test sample. Compared with the prior art, the high-temperature resistance spring type metal material deformation measuring device has a simple structure, is convenient to mount, not only can measure common metal test samples without bosses such as wires, rods, pipes and the like, but also can measure the deformation value of multi-strand type special metal test samples without bosses such ad steel wire bundles and the like in a gauge length during high-temperature stretching tests.
Description
Technical field
The utility model relates to metal material drawing by high temperature Mechanics Performance Testing field, is a kind of when carrying out high temperature tension test to no boss metal material samples such as wire rods, bar, tubing, steel tendon, measures the technique device of its gauge length internal strain amount.
Background technology
At present, both at home and abroad no boss metal material sample (like wire rod, bar, tubing etc.) when carrying out high temperature tension test, is adopted when method is measured the gauge length internal strain comparatively accurately, mostly used device is the side-plug-in extensometer.This kind extensometer can only be realized the monolateral measurement to sample deformation, makes the sample deformation measurement machine malalignment that is put to the test cause the eccentric influence of load bigger, and measurement of factor is high; Its range is limited, and gauge length is below the 50mm; Owing to be mostly to cost an arm and a leg imported product.In addition, this extensometer mainly is applicable to single sample, for the special no boss metal material sample of multiply formulas such as picture steel strand wires and steel tendon, only can measure the high temperature deformation amount of outer wires, and the whole deflection of energy measurement sample not, so be difficult to be suitable for.
Summary of the invention
The purpose of the utility model be exactly provide in order to overcome the deficiency that above-mentioned prior art exists a kind of simple in structure, cost is low, applied widely, the high temperature resistant spring metal material deformation measuring device that can realize bilateral measurement.
The purpose of the utility model can realize through following technical scheme: a kind of high temperature resistant spring metal material deformation measuring device comprises high temperature resistant spring, last fixture block, following fixture block, the bar of extending, deformation-sensor, high temperature furnace.Described high temperature resistant spring is normally effectively work in 0～600 ℃ of temperature range.The described fixture block of going up all places high temperature furnace with following fixture block; Described upward fixture block comprises two edges of a knife on the relative both sides of clamping sample; And connect together through two parallel bars; One end of bar all connects high temperature resistant spring, and the snap-in force of high temperature resistant spring makes that two edges of a knife are elongated at the sample drawing by high temperature, advance in evenly in the process that attenuates, all the time the last gauge length end of firm grip sample; Stretch out from the high temperature furnace end opening the described bar lower end of extending, and connects deformation-sensor in sample symmetry both sides, forms bilateral measuring system.
Same principle; Described fixture block down comprises two edges of a knife on the relative both sides of clamping sample; And connect together through two parallel bars; One end of bar all connects high temperature resistant spring, and the snap-in force of high temperature resistant spring makes that two edges of a knife are elongated at the sample drawing by high temperature, advance in evenly in the process that attenuates, all the time the following gauge length end of firm grip sample.
The described bar of extending has four by the high temperature alloy steel, fixing two of the symmetrical end of last fixture block; Fixing two of the symmetrical end of following fixture block, four bar lower ends of extending are arranged on the orienting lug, the parallel axes of the axis and the sample of the bar that guarantees to extend; And respectively connect identical deformation-sensor in sample symmetry both sides, and be differential transformer displace, form bilateral measuring system; To measure the relative shift between fixture block up and down, draw sample high temperature deformation value.
The beneficial effect of the utility model device is: compared with prior art; The utility model apparatus structure is simple; Easy for installation, not only can solve as ordinary metallic material samples such as wire rod (like steel wire), bar, tubing the deformation measurement problem in the time of can also solving particulate metal material sample as this multiply formula of steel tendon and carry out high temperature tension test; The temperature range that this device is suitable for is 0～600 ℃; Can measure the overall process deflection of sample till, and can realize bilateral measurement, avoid the influence of the eccentric tension that monolateral measurement brought from elastic deformation to fracture; Improved measuring accuracy, and expense is cheaply more a lot of than the monolateral extensometer of the side-plug-in of import.Complete simple root metal material sample such as the steel wire and special type multiply formula metal material sample such as the relevant mechanical property of steel tendon each under drawing by high temperature tested of the utility model device.
Description of drawings
Fig. 1 is the structural representation in the utility model device longitudinal profile;
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1-metal material sample, the last fixture block of 2-, 3-bar a, 4-bar b, 5-is high temperature resistant spring a; 6-is high temperature resistant spring b, fixture block under the 7-, 8-bar c, 9-bar d, 10-is high temperature resistant spring c; 11-is high temperature resistant spring d, the 12-bar a that extends, the 13-bar b that extends, the 14-bar c that extends, the 15-bar d that extends; The 16-high temperature furnace, 17-orienting lug, 18-differential transformer displace a, 19-differential transformer displace b.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Shown in Fig. 1～2, a kind of high temperature resistant spring metal material deformation measuring device comprises metal material sample 1, last fixture block 2, bar a3, bar b4; High temperature resistant spring a5, high temperature resistant spring b6, following fixture block 7, bar c8, bar d9; High temperature resistant spring c10, high temperature resistant spring d11, the bar a12 that extends, the bar b13 that extends, bar c14 extends; The bar d15 that extends, high temperature furnace 16, orienting lug 17, differential transformer displace a18, differential transformer displace b19.
Earlier lower chuck on the metal material sample 1 usefulness cupping machine is clamped; Two edges of a knife to going up fixture block 2 according to the sample marking distance of reserving then are fixed to the last gauge length end of sample; Two edges of a knife link together through two parallel bar a3 and bar b4; Bar a3 one end connects high temperature resistant spring a5, and bar b4 one end connects high temperature resistant spring b6, and the snap-in force of high temperature resistant spring makes that two edges of a knife are elongated at the sample drawing by high temperature, advance in evenly in the process that attenuates; All the time the last gauge length end of firm grip sample prevents that the edge of a knife from skidding or come off in the test drawing process.
Same principle and method; Following two edges of a knife of fixture block 7 are fixed to the following gauge length end of sample, and two edges of a knife link together through two parallel bar c8 and bar d9, and bar c8 one end connects high temperature resistant spring c10; Bar d9 one end connects high temperature resistant spring d11; The snap-in force of high temperature resistant spring makes that two edges of a knife are elongated at the sample drawing by high temperature, advance in evenly in the process that attenuates, and the last gauge length end of firm grip sample all the time prevents that the edge of a knife from skidding or come off in testing drawing process.
Two bars of extending are fixed in last fixture block 2 ends: the bar a12 and the bar c14 that extends extend; Two bars of extending are fixed in following fixture block 7 ends: the bar b13 and the bar d15 that extends extend; Stretch out from high temperature furnace 16 end openings four bar lower ends of extending, and is arranged on the orienting lug 17, and adjusts straight; The bar a12 that extends is connected differential transformer displace a18 with the bar b13 lower end of extending; The bar c14 that extends is connected differential transformer displace b19 with the bar d15 lower end of extending, and forms bilateral measuring system in the both sides of sample symmetry like this, in the high temperature tension test process; Differential transformer displace a18 and differential transformer displace b19 can record the relative displacement of sample between last fixture block 2 and following fixture block 7 respectively, with the mean value of two groups of data as the high temperature deformation amount in the sample marking distance section.
Described high temperature resistant spring is normally effectively work in 0～600 ℃ of temperature range.
Claims (5)
1. a high temperature resistant spring metal material deformation measuring device is characterized in that, comprises high temperature resistant spring; Last fixture block, following fixture block, the bar of extending; Deformation-sensor, high temperature furnace, the described fixture block of going up all places high temperature furnace with following fixture block; Last fixture block is equipped with high temperature resistant spring with following fixture block end, and is fixed with the bar of extending; The snap-in force of described high temperature resistant spring makes that the edge of a knife of fixture block and play fixture block is elongated at the sample drawing by high temperature, advance in even in the process that attenuates, all the time clamping sample securely; Stretch out from the high temperature furnace end opening the described bar lower end of extending, and connects deformation-sensor in sample symmetry both sides, forms bilateral measuring system.
2. a kind of high temperature resistant spring metal material deformation measuring device according to claim 1; It is characterized in that; Described upward fixture block comprises two edges of a knife on the relative both sides of clamping sample, and connects together through two parallel bars, and an end of bar connects high temperature resistant spring.
3. a kind of high temperature resistant spring metal material deformation measuring device according to claim 1; It is characterized in that; Described fixture block down comprises two edges of a knife on the relative both sides of clamping sample, and connects together through two parallel bars, and an end of bar connects high temperature resistant spring.
4. a kind of high temperature resistant spring metal material deformation measuring device according to claim 1; It is characterized in that; The described bar of extending has four; Two bars of extending are fixed in the symmetrical end of last fixture block, and two bars of extending are fixed in the symmetrical end of following fixture block, and four bar lower ends of extending are arranged on the orienting lug.
5. a kind of high temperature resistant spring metal material deformation measuring device according to claim 1; It is characterized in that; Described deformation-sensor is a differential transformer displace, and totally two, symmetry is installed in the sample both sides; Each deformation-sensor connects two bars of extending, and forms a bilateral measuring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120087096U CN202141649U (en) | 2011-03-29 | 2011-03-29 | High-temperature resistance spring type metal material deformation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120087096U CN202141649U (en) | 2011-03-29 | 2011-03-29 | High-temperature resistance spring type metal material deformation measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN202141649U true CN202141649U (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120087096U Expired - Fee Related CN202141649U (en) | 2011-03-29 | 2011-03-29 | High-temperature resistance spring type metal material deformation measuring device |
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| Country | Link |
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| CN (1) | CN202141649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721611A (en) * | 2011-03-29 | 2012-10-10 | 同济大学 | High temperature resistant spring-type device for measuring metallic material deformation |
-
2011
- 2011-03-29 CN CN201120087096U patent/CN202141649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721611A (en) * | 2011-03-29 | 2012-10-10 | 同济大学 | High temperature resistant spring-type device for measuring metallic material deformation |
| CN102721611B (en) * | 2011-03-29 | 2014-12-10 | 同济大学 | High temperature resistant spring-type device for measuring metallic material deformation |
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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: 20120208 Termination date: 20150329 |
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| EXPY | Termination of patent right or utility model |