CN205449646U - Spring extensometer cantilever bar positioner and spring extensometer - Google Patents
Spring extensometer cantilever bar positioner and spring extensometer Download PDFInfo
- Publication number
- CN205449646U CN205449646U CN201521130328.1U CN201521130328U CN205449646U CN 205449646 U CN205449646 U CN 205449646U CN 201521130328 U CN201521130328 U CN 201521130328U CN 205449646 U CN205449646 U CN 205449646U
- Authority
- CN
- China
- Prior art keywords
- extensometer
- spring
- cantilever lever
- bolt
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a spring extensometer cantilever bar positioner and spring extensometer belongs to tensile test machine test equipment technology field, including casing, cantilever bar and positioning bolt, in the perpendicular insertion machine shell of cantilever bar, and can slide in the casing, be equipped with a plurality of threaded positioning hole on cantilever bar, be equipped with a plurality of bolt holes on housing sidewall, positioning bolt can pass the bolt hole on the casing and insert perpendicularly among the arbitrary threaded positioning hole. Owing to set up a plurality of threaded positioning hole for the edge of a knife is controlled with the interval of the cantilever bar edge of a knife, makes not unidimensional sample can both obtain fine centre gripping. Thereby reduced the operation degree of difficulty, improved test efficiency and experimental precision, can effectively prolong the life of extensometer simultaneously.
Description
Technical field
This utility model belongs to tension test machine testing equipment technical field, relates to a kind of spring extensometer cantilever lever positioner and spring extensometer.
Background technology
In mechanical stretch is tested, testing machine is furnished with spring extensometer, this kind of extensometer for gather sample calibrate in drawing process away from deformation data, according to stress-strain diagram, obtain the yield strength of material, the index such as tensile strength.Spring extensometer is provided with spring push-pull bar, in test process, often needs to be adjusted the position of spring push-pull bar institute connecting cantilever bar, so that the sample of different-diameter or width is effectively clamped.If the edge of a knife is excessive/too small with cantilever lever edge of a knife spacing, then causing amount of spring compression too small/excessive, chucking power is too small/excessive, in the case of this instability, it is possible that extensometer skidding in process of the test, cause test data unavailable, waste sample and manpower.Additionally, generally, cantilever lever is fixed its position, due in process of the test with spring push-pull bar by screw fit, the normal pressure relying on threaded end to apply in the face of cantilever lever, often adjust the position of cantilever lever, after long-time use, there is abrasion in screw thread, stripped thread phenomenon occurs, cause cantilever lever location insecure, cause test data to be forbidden.Moreover, screw end face and the fit system of cantilever lever, the cantilever lever clamping edge of a knife and specimen surface out of plumb may be made, affect the precision of result of the test.
Utility model content
For the defect overcoming above-mentioned prior art to exist, the purpose of this utility model is to provide a kind of spring extensometer cantilever lever positioner and spring extensometer, and this positioning device structure is reasonable in design, fixed；This spring extensometer easily operates, it is possible to increase test efficiency and test accuracy.
This utility model is to be achieved through the following technical solutions:
A kind of spring extensometer cantilever lever positioner, including casing, cantilever lever and bolt, cantilever lever is inserted perpendicularly in casing, and can slide in casing；Cantilever lever is provided with some threaded locating holes, chassis sidewall is provided with some bolts hole；Bolt can pass the bolt hole in casing and be inserted perpendicularly in any one threaded locating hole.
The degree of depth of the threaded locating hole on cantilever lever is 2～5mm.
Described bolt hole has several, and along cantilever lever radial arrangement on the side sidewall of casing.
Described bolt is two, the respectively first bolt and the second bolt.
The cantilever lever edge of a knife can be with sample to be tested perpendicular contact.
Distance between described some threaded locating holes is according to sample width setup in GB/T228.1 and ASTMA370.
The invention also discloses spring extensometer based on above-mentioned spring extensometer cantilever lever positioner.
Compared with prior art, this utility model has a following useful technique effect:
Spring extensometer cantilever lever positioner of the present utility model, cantilever lever is provided with some threaded locating holes, being provided with bolt on the sidewall of casing, the threaded locating hole on cantilever lever matches with the bolt in casing, and bolt can be inserted perpendicularly in any one threaded locating hole.Owing to being provided with several threaded locating holes so that the edge of a knife is controlled with the spacing of the cantilever lever edge of a knife, various sizes of sample is made well to be clamped.Thus reduce operation easier, improve test efficiency and test accuracy, can effectively extend the service life of extensometer simultaneously.
Spring extensometer disclosed in this utility model, setting based on above-mentioned positioner, by the spacing of the edge of a knife with the cantilever lever edge of a knife is controlled, various sizes of sample is made well to be clamped, and it is firm firm, test efficiency and test accuracy can be improved, can effectively extend the service life of extensometer simultaneously.
Further, the degree of depth of the threaded locating hole on cantilever lever is 2～5mm, is optimized the fit system of cantilever lever with spring push-pull bar, in order to avoid there is screw thread stripped thread phenomenon, and makes its secure fit.Meanwhile, it is capable to guarantee the cantilever lever edge of a knife and sample energy perpendicular contact.The error that pipe line steel yield strength measurement result is brought by extensometer skidding can be effectively reduced, thus draw reliable pipe line steel yield strength value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is threaded locating hole position view of the present utility model.
Wherein: 1 is the first bolt；2 is the second bolt；3 is cantilever lever；4 is threaded locating hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
Seeing Fig. 1 and Fig. 2, spring extensometer cantilever lever positioner of the present utility model, including casing, cantilever lever 3 and bolt, cantilever lever 3 can pass casing, and can slide in casing；Being provided with some threaded locating holes 4 on cantilever lever 3, be provided with bolt on the sidewall of casing, the threaded locating hole 4 on cantilever lever 3 matches with the bolt in casing, and bolt can be inserted perpendicularly in any one threaded locating hole 4.
Preferably, the degree of depth of the threaded locating hole 4 on cantilever lever 3 is 2～5mm.Make fixing more firm of bolt, it is possible to effectively preventing the phenomenon of screw thread stripped thread, even if using for a long time, screw thread exists abrasion, nor affects on its fastness.Described bolt is two, the respectively first bolt 1 and the second bolt 2, and double bolts make fixing more firm, it is ensured that test efficiency.Bolt hole has several, and along cantilever lever 3 radial arrangement on the side sidewall of casing.
Preferably, distance between described some threaded locating holes 4 sets according to GB/T228.1 and ASTMA370 Plays specimen width, according to amount of spring compression Δ L, the initial distance L of two edges of a knife, specimen width B determine different threaded locating holes position on cantilever lever.First determine conventional specimen width according to ASTMA370 and GB/T228, due to Δ L+L=B, obtain the position of threaded locating hole, require that threaded locating hole can make the cantilever lever edge of a knife vertical with sample to be tested simultaneously.
In sum, there is disclosed in this utility model the spring extensometer of positioner, the error that pipe line steel yield strength measurement result is brought by extensometer skidding can be reduced, thus draw reliable pipe line steel yield strength value.This utility model has a following features:
(1) by the spacing of the edge of a knife with the cantilever lever edge of a knife is controlled, various sizes of sample is made well to be clamped；
(2) fit system of cantilever lever with spring push-pull bar is optimized, in order to avoid screw thread stripped thread phenomenon occurs, and makes its secure fit；
(3) the cantilever lever edge of a knife and sample energy perpendicular contact are guaranteed；
(4) reduce operation easier, improve test efficiency and test accuracy.
Claims (7)
1. a spring extensometer cantilever lever positioner, it is characterised in that include casing, cantilever lever (3) and bolt, cantilever lever (3) is inserted perpendicularly in casing, and can slide in casing；Cantilever lever (3) is provided with some threaded locating holes (4), chassis sidewall is provided with some bolts hole；Bolt can pass the bolt hole in casing and be inserted perpendicularly in any one threaded locating hole (4).
A kind of spring extensometer cantilever lever positioner the most according to claim 1, it is characterised in that the degree of depth of the threaded locating hole (4) on cantilever lever (3) is 2～5mm.
A kind of spring extensometer cantilever lever positioner the most according to claim 1, it is characterised in that described bolt hole has several, and along cantilever lever (3) radial arrangement on the side sidewall of casing.
A kind of spring extensometer cantilever lever positioner the most according to claim 1, it is characterised in that described bolt is two, the respectively first bolt (1) and the second bolt (2).
A kind of spring extensometer cantilever lever positioner the most according to claim 1, it is characterised in that cantilever lever (3) edge of a knife can be with sample to be tested perpendicular contact.
A kind of spring extensometer cantilever lever positioner the most according to claim 1, it is characterised in that the distance between described some threaded locating holes (4) is according to sample width setup in GB/T228.1 and ASTMA370.
7. spring extensometer based on the spring extensometer cantilever lever positioner described in any one in claim 1～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130328.1U CN205449646U (en) | 2015-12-30 | 2015-12-30 | Spring extensometer cantilever bar positioner and spring extensometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130328.1U CN205449646U (en) | 2015-12-30 | 2015-12-30 | Spring extensometer cantilever bar positioner and spring extensometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205449646U true CN205449646U (en) | 2016-08-10 |
Family
ID=56599093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521130328.1U Active CN205449646U (en) | 2015-12-30 | 2015-12-30 | Spring extensometer cantilever bar positioner and spring extensometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205449646U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970019A (en) * | 2017-05-09 | 2017-07-21 | 中国石油天然气集团公司 | A kind of hydrogen induced cracking (HIC) test fixture |
| CN108195665A (en) * | 2018-03-20 | 2018-06-22 | 天津大学 | For the extensometer of high temperature single shaft experiment |
| CN109708608A (en) * | 2018-12-20 | 2019-05-03 | 南京航空航天大学 | A kind of adjustable clipping high-temperature extensometer of spacing |
| CN112710559A (en) * | 2019-10-25 | 2021-04-27 | 中国航发商用航空发动机有限责任公司 | High-temperature mechanical test device and extensometer auxiliary assembly thereof |
-
2015
- 2015-12-30 CN CN201521130328.1U patent/CN205449646U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970019A (en) * | 2017-05-09 | 2017-07-21 | 中国石油天然气集团公司 | A kind of hydrogen induced cracking (HIC) test fixture |
| CN108195665A (en) * | 2018-03-20 | 2018-06-22 | 天津大学 | For the extensometer of high temperature single shaft experiment |
| CN108195665B (en) * | 2018-03-20 | 2023-09-12 | 天津大学 | Extensometer for high Wen Shanzhou experiment |
| CN109708608A (en) * | 2018-12-20 | 2019-05-03 | 南京航空航天大学 | A kind of adjustable clipping high-temperature extensometer of spacing |
| CN112710559A (en) * | 2019-10-25 | 2021-04-27 | 中国航发商用航空发动机有限责任公司 | High-temperature mechanical test device and extensometer auxiliary assembly thereof |
| CN112710559B (en) * | 2019-10-25 | 2022-06-24 | 中国航发商用航空发动机有限责任公司 | High-temperature mechanical test device and extensometer auxiliary assembly thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205449646U (en) | Spring extensometer cantilever bar positioner and spring extensometer | |
| CN102042796B (en) | Verticality detection device | |
| CN204471236U (en) | A kind of turbine rotor blade special fixture | |
| CN107727489B (en) | A kind of clamping and fixing device of sheet metal compression | |
| CN203929504U (en) | A kind of dismantled and assembled small sample cupping machine jig | |
| WO2021135308A1 (en) | Loading apparatus for rock fracturing simulation and rock fracturing simulation device | |
| CN107063853B (en) | Clamp for testing shear performance of V-shaped notch beam sample | |
| CN104655483A (en) | Hanging-type fixture used in tension and durability of sheet-shaped test sample | |
| CN203908887U (en) | Brazilian testing device | |
| CN209014626U (en) | A kind of rotating probe contact mould group | |
| CN202734708U (en) | Tool for rapid detection of screwed holes | |
| CN204913619U (en) | Impact specimen special fixture | |
| CN204705545U (en) | Cable checkout equipment fixture | |
| CN201697836U (en) | Auxiliary fixture for standard round bar sample tensile test | |
| CN203414340U (en) | Auxiliary tool for measuring gauge length of fractured tensile sample | |
| CN103529247B (en) | A kind of tool for measuring surface mounting crystal electrical quantity | |
| CN206920262U (en) | A kind of thin plate low cycle fatigue test device | |
| CN105690008A (en) | Manufacturing method of efficient positioning tool for drilling | |
| CN209496849U (en) | Battery holder for x-ray film | |
| CN203443864U (en) | Torque method detector for detecting concrete compression strength | |
| CN207586019U (en) | A kind of fixture for the experiment of composite board compression performance | |
| CN104359365A (en) | Inspection tool of secondary electric power equipment | |
| CN111486762A (en) | Go-no go gauge integrated detection jig and application method thereof | |
| CN201344787Y (en) | Dedicated measuring tool for needle plate | |
| CN104567579A (en) | Lug detection device of storage battery group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |