CN204514709U - A kind of thin-walled tubular fatigue test piece scale distance section locating device - Google Patents
A kind of thin-walled tubular fatigue test piece scale distance section locating device Download PDFInfo
- Publication number
- CN204514709U CN204514709U CN201520224336.6U CN201520224336U CN204514709U CN 204514709 U CN204514709 U CN 204514709U CN 201520224336 U CN201520224336 U CN 201520224336U CN 204514709 U CN204514709 U CN 204514709U
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- cover plate
- mould
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- test specimen
- base
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Abstract
A kind of thin-walled tubular fatigue test piece scale distance section locating device, relate to a kind of proving installation, it is characterized in that, described device comprises base (1), mould (2), right cover plate (3), test specimen (4), the rod (5) of both end thread, tapper (6), nut (7), screw (8), upper cover plate (9); Test specimen (4) is placed in the mould (2) of base (1), mould (2) and base (1) slot fit, test specimen (4) is through right cover plate (3) axial location, upper cover plate (9) is fixed through screw (8) with mould (2), the rod (5) of both end thread penetrates in thin walled tube, carry out end locking with nut (7) and base (1), left cover, right cover plate (3), tapper (6) coordinates with tapper hole.Adopt accurately determining of the gauge length section size of thin-walled tubular test specimen, thus obtain more accurate test findings.
Description
Technical field
The utility model relates to a kind of proving installation, particularly relates to a kind of thin-walled tubular fatigue test piece scale distance section locating device.
Background technology
Shape, the size of fatigue sample are determined according to test condition, the ability of testing machine and the size of extensometer; match with the chuck of testing machine in its end; the bare terminal end of general test specimen is column; how fixing test specimen to guarantee to obtain accurate gauge length fragment position, is a key issue in process of the test.
Summary of the invention
The purpose of this utility model is to provide a kind of thin-walled tubular fatigue test piece scale distance section locating device, this device is that the gauge length size of thin-walled tubular fatigue sample is determined, carry out the test of strain controlling Multiaxial Low Cycle Fatigue, adopt accurately determining of the gauge length section size of thin-walled tubular test specimen, thus obtain more accurate test findings.
The purpose of this utility model is achieved through the following technical solutions:
A kind of thin-walled tubular fatigue test piece scale distance section locating device, described device comprises base, mould, right cover plate, test specimen, the rod of both end thread, tapper, nut, screw, upper cover plate; Test specimen is placed in the mould of base, and mould coordinates with bottom tub, and test specimen is through right cover plate axial location, upper cover plate and mould are fixed through screw, the rod of both end thread penetrates in thin walled tube, and carry out end locking with nut and base, left cover, right cover plate, tapper coordinates with tapper hole.
Advantage of the present utility model and effect are:
The gauge length size that the utility model is applied to thin-walled tubular fatigue sample is determined, carry out the test of strain controlling Multiaxial Low Cycle Fatigue, adopt thin-walled tubular test specimen can obtain test findings more accurate than bar, the test figure post-processed of thin-walled tubular test specimen is more convenient simultaneously.In order to obtain more accurate test findings, extensometer end mostly is taper, forms point cantact with surface of test piece, and the good contact therefore accurately determined gauge length fragment position, size before test and realize surface of test piece and extensometer is the key issue in testing.Therefore, the utility model thin-walled tubular fatigue test piece scale distance size determining device has important realistic meaning.
Accompanying drawing explanation
Fig. 1 is each structural representation of the utility model fatigue test piece scale distance section locating device;
Fig. 2 is the rod assembling schematic perspective view of the utility model base, mould, test specimen, both end thread;
Fig. 3 is the utility model one-piece construction assembling schematic perspective view;
Fig. 4 is the utility model structure assembling perspective view.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the utility model is described in detail.
Parts in figure: 1. rod 6. tapper 7. nut 8. screw 9. upper cover plate of base 2. mould 3. right cover plate 4. test specimen 5. both end thread.
The utility model thin-walled tubular fatigue test piece scale distance section locating device, is made up of the rod of base (band left cover), right cover plate, upper cover plate, mould, both end thread, nut, screw and tapper.After the mould of base put into by test specimen, mould is coordinated with bottom tub, the location, front and back of test specimen can be ensured.Right cover plate ensures the axial location of test specimen.Upper cover plate and mould, after screw is fixing, ensure before and after test specimen, axial stable position further, prepare for carrying out gauge length location.The rod of both end thread and nut prevent test specimen from carrying out rotating in gauge length process.Tapper coordinates with tapper hole, then under external force, gets ready, complete gauge length position fixing process in fixing surface of test piece.Thin-walled tubular fatigue test piece scale distance section locating device, can realize the accurate location to thin-walled tubular fatigue test piece scale distance section, thus improves test measuring accuracy.Under the cooperation of base, mould, can realize locating the front and back of test specimen; Base and right cover plate can ensure the axial location of test specimen; Place upper cover plate, adopt screw and mould to fix, again guarantee that test specimen does not occur axially and moves forward and backward; The rod of both end thread is put into thin walled tube, with nut, two ends is locked, prevent test specimen from carrying out rotating in gauge length process.
During operation, first test specimen 4 is put into mould 2, then mould is put into base 1 groove, realize locating the front and back of test specimen 4.Secondly, put into right cover plate 3 pairs of test specimens and carry out axial location.Again, place upper cover plate 9, itself and mould 2 are fixed through screw 8, again guarantee that test specimen does not occur axially and moves forward and backward; The rod 6 of both end thread is penetrated in thin walled tube, carries out end locking with nut 7 and base left cover, right cover plate 3, prevent test specimen from carrying out rotating in gauge length process.Finally, tapper is coordinated with tapper hole, apply suitable external force, surface of test piece is got ready, complete gauge length position fixing process.
Claims (1)
1. a thin-walled tubular fatigue test piece scale distance section locating device, it is characterized in that, described device comprises base (1), mould (2), right cover plate (3), test specimen (4), the rod (5) of both end thread, tapper (6), nut (7), screw (8), upper cover plate (9); Test specimen (4) is placed in the mould (2) of base (1), mould (2) and base (1) slot fit, test specimen (4) is through right cover plate (3) axial location, upper cover plate (9) is fixed through screw (8) with mould (2), the rod (5) of both end thread penetrates in thin walled tube, carry out end locking with nut (7) and base (1), left cover, right cover plate (3), tapper (6) coordinates with tapper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224336.6U CN204514709U (en) | 2015-04-15 | 2015-04-15 | A kind of thin-walled tubular fatigue test piece scale distance section locating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224336.6U CN204514709U (en) | 2015-04-15 | 2015-04-15 | A kind of thin-walled tubular fatigue test piece scale distance section locating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204514709U true CN204514709U (en) | 2015-07-29 |
Family
ID=53712671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520224336.6U Expired - Fee Related CN204514709U (en) | 2015-04-15 | 2015-04-15 | A kind of thin-walled tubular fatigue test piece scale distance section locating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204514709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807695A (en) * | 2015-04-15 | 2015-07-29 | 沈阳化工大学 | Standard distance section positioning device for thin-walled tubular fatigue specimen |
-
2015
- 2015-04-15 CN CN201520224336.6U patent/CN204514709U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807695A (en) * | 2015-04-15 | 2015-07-29 | 沈阳化工大学 | Standard distance section positioning device for thin-walled tubular fatigue specimen |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20170415 |