CN203551387U - Stretching-unloading testing device - Google Patents
Stretching-unloading testing device Download PDFInfo
- Publication number
- CN203551387U CN203551387U CN201320704287.7U CN201320704287U CN203551387U CN 203551387 U CN203551387 U CN 203551387U CN 201320704287 U CN201320704287 U CN 201320704287U CN 203551387 U CN203551387 U CN 203551387U
- Authority
- CN
- China
- Prior art keywords
- installation portion
- mounting groove
- installing mechanism
- breach
- width
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 88
- 238000009434 installation Methods 0.000 claims description 75
- 238000009864 tensile test Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Abstract
The utility model relates to a stretching-unloading testing device. The stretching-unloading testing device comprises a first mounting mechanism, a second mounting mechanism, a loading member and a limiting block, wherein the first mounting mechanism is used for mounting one end part of a testing piece, the second mounting mechanism is used for mounting the other end part of the testing piece, one end part of the loading member is fixedly connected with the second mounting mechanism, and the limiting block is fixedly connected with the first mounting mechanism and is in sliding connection with the second mounting mechanism; a groove is formed in the limiting block along the length direction of the limiting block, the second mounting mechanism is located in the groove and slides along the groove, the other end part of the loading member penetrates out of the limiting block and is arranged to slide with the limiting block, and the central faces of the first mounting mechanism, the second mounting mechanism, the limiting block and the loading member in the width direction are coplanar with one another. According to the stretching-unloading testing device, the continuous loading and unloading of a tensile test can be realized in middle and high strain rates.
Description
Technical field
The utility model relates generally to a kind of stretching unloading test device, belongs to material mechanical performance test and representational field, for industries such as automobile, aviations.
Background technology
In the mechanical test of the vehicle materials such as high-strength steel, macromolecular material, plastics, often need the uninstall feature of test material.At present, for the test of material uninstall feature, normally by motor, realizing closed-loop control, can realize on the electronic universal tester that adds continuously unloading and completing.But electronic universal tester can only be realized the test under quasistatic or lower rate of strain.In reality, for vehicle materials such as high-strength steel, macromolecular material, plastics, what we more needed concern is the mechanical characteristic of material under middle and high rate of strain loads.And for the middle and high fast cupping machine that can realize middle and high rate of strain loading, be generally hydraulic system, by open loop control, carry out unidirectional loading, be difficult to realization and add continuously unloading.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, can realize the stretching unloading test device that adds continuously unloading under middle and high rate of strain.
For solving above technical matters, the utility model adopts following technical scheme:
Stretching unloading test device, comprise the first installing mechanism for an end of installation testing test specimen, be used for second installing mechanism of the other end that described test specimen is installed, the loaded member that one end is fixedly connected with described the second installing mechanism, the limited block being fixedly connected with described the first installing mechanism and be slidably connected with described the second installing mechanism, described limited block offers groove along its length, described the second installing mechanism is positioned at described groove and slides along described groove, the other end of described loaded member passes described limited block and arranges slidably with described limited block, described the first installing mechanism is at the central plane of Width, described the second installing mechanism is at the central plane of Width, described limited block is the equal isoplanar of central plane at Width in the central plane of Width and described loaded member.
Described the first installing mechanism comprises the first installation portion, described the first installation portion offers the first mounting groove of the end for placing described test specimen along its length, in an end of described the first installation portion and be positioned on the center line of described the first installation portion Width and offer the first breach, described the first breach is communicated with described the first mounting groove, the width of described the first breach is less than the width of described the first mounting groove, described the first installing mechanism also comprises the first cover plate that is arranged on described the first mounting groove top, described the first cover plate is close to the surface of described the first installation portion and is fixedly connected with described the first installation portion by multiple the first securing members.
One end of described the first installation portion is fixedly connected with described limited block, two sides in an end of described the first installation portion are arranged with joint pin, described limited block is offering connecting hole with the corresponding position of described joint pin, described joint pin has external thread, described joint pin is provided with nut, and described joint pin is connected described the first installation portion with described nut through described connecting hole successively with described limited block.
On the symmetrical two side faces of described limited block, offer threaded hole, described threaded hole is communicated with described connecting hole, is provided with the bolt for described limited block is fixedly connected with described joint pin in described threaded hole.
On described two side faces, along the length direction of described limited block, offer multiple threaded holes, each described threaded hole correspondence is provided with a bolt.
Described the first installing mechanism also comprise between an end that is arranged on described the first cover plate and described test specimen the gap between an end and described the first cover plate for eliminating described test specimen the first pad, be arranged on described the first mounting groove bottom for adjusting an end of described test specimen at the second pad of described the first mounting groove short transverse position.
Described the second installing mechanism comprises the second installation portion, described the second installation portion offers second mounting groove of the other end for placing described test specimen along its length, in an end of described the second installation portion and be positioned on the center line of described the second installation portion Width and offer the second breach, described the second breach is communicated with described the second mounting groove, the width of described the second breach is less than the width of described the second mounting groove, described the second installing mechanism also comprises the second cover plate that is arranged on described the second mounting groove top, described the second cover plate is close to the surface of described the second installation portion and is fixedly connected with described the second installation portion by multiple the second securing members.
Described the second installation portion is fixedly connected with described loaded member, one end portion of described loaded member is positioned at described the second mounting groove, in the other end of described the second installation portion and be positioned on the center line of described the second installation portion Width and offer the 3rd breach, described the 3rd breach is communicated with described two mounting grooves, the width of described the 3rd breach is less than the width of described the second mounting groove, and described the second installation portion is stretched out from described the 3rd breach in the other end of described loaded member.
Described the second installing mechanism also comprise be arranged between described the second cover plate and the other end of described test specimen the gap between the other end and described the second cover plate for eliminating described test specimen the 3rd pad, be arranged on described the second mounting groove bottom for adjusting the other end of described test specimen at the 4th pad of described the second mounting groove short transverse position.
Symmetrical two side faces on the position not being connected with described the second installing mechanism of described loaded member offers the 4th breach.
Due to the enforcement of technique scheme, the utility model compared with prior art tool has the following advantages:
Stretching unloading test device of the present utility model not only can be realized by the link position of limited block and the first installing mechanism is set the discharge mechanism of controlled displacement for different materials for test, also can remove limited block, be reduced to simple power control discharge mechanism.
What stretching unloading test device of the present utility model had been realized tension test under middle and high rate of strain adds unloading continuously.
The utility model stretching unloading test apparatus structure is simple, easy to operate, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the front elevational schematic of the utility model stretching unloading test device;
Fig. 2 be in Fig. 1 A-A to cross-sectional schematic;
Fig. 3 is that schematic diagram is looked on a left side for the utility model stretching unloading test device;
Fig. 4 is the axle schematic side view such as grade (not showing test specimen and cover plate) of the utility model stretching unloading test device;
In figure: 1, the first installation portion; 2, the first cover plate; 3, the first securing member; 4, the first breach; 5, the first mounting groove; 6, joint pin; 7, test specimen; 8, the second installation portion; 9, the second breach; 10, the second mounting groove; 11, the second cover plate; 12, the second securing member; 13, the 3rd breach; 14, limited block; 15, groove; 16, nut; 17, bolt; 18, loaded member; 19, the 4th breach; 20, the first pad; 21, the second pad; 22, the 3rd pad; 23, the 4th pad; 24, lug boss.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in accompanying drawing 1 ~ 4, stretching unloading test device, comprise the first installing mechanism for an end of installation testing test specimen 7, be used for second installing mechanism of the other end that test specimen 7 is installed, the loaded member 18 that one end is fixedly connected with the second installing mechanism, the limited block 14 being fixedly connected with the first installing mechanism and be slidably connected with the second installing mechanism, limited block 14 offers groove 15 along its length, the second installing mechanism is positioned at groove 15 and slides along groove 15, the other end of loaded member 18 passes limited block 14 and arranges slidably with limited block 14, the first installing mechanism is at the central plane of Width, the second installing mechanism is at the central plane of Width, limited block 14 is the equal isoplanar of central plane at Width in the central plane of Width and loaded member 18.Groove 15 is connected with the external world of limited block 14 near one end of the first installing mechanism, and the other end of groove 15 has limiting section, offers through hole on limiting section, and limited block 14 is stretched out from this through hole in the other end of loaded member 18.
In the present embodiment, the first installing mechanism comprises the first installation portion 1, the first installation portion 1 offers the first mounting groove 5 of the end for placing test specimen 7 along its length, in an end of the first installation portion 1 and be positioned at the width that the width that offers the first breach 4, the first breach 4 on the center line of the first installation portion 1 Width is less than the first mounting groove 5.The part of test specimen 7 is stretched out the first installation portion 1 from the first breach 4.The first installing mechanism also comprises that the first cover plate 2, the first cover plates 2 that are arranged on the first mounting groove 5 tops are close to the surface of the first installation portion 1 and are fixedly connected with the first installation portion 1 by multiple the first securing members 3.
While specifically arranging, one end of the first installation portion 1 is fixedly connected with limited block 14, two sides in an end of the first installation portion 1 are arranged with joint pin 6, limited block 14 offers connecting hole in the position corresponding with joint pin 6, joint pin 6 has external thread, joint pin 6 is provided with nut 16, and joint pin 6 is connected the first installation portion 1 with nut 16 through connecting hole successively with limited block 14.For make between limited block 14 and the first installation portion 1 be connected more stable, at limited block 14 symmetrical two side faces along its length, offer threaded hole, threaded hole is communicated with connecting hole, is provided with the bolt 17 for limited block 14 is fixedly connected with joint pin 6 in threaded hole.On two side faces, along the length direction of limited block 14, offer multiple threaded holes, each threaded hole correspondence is provided with a bolt.Particularly, each side is provided with 3 threaded holes.For this stretching unloading test device is more convenient for using, on the other end of the first installation portion 1, be provided with the lug boss 24 extending along the first installation portion 1 length direction, better, the width of the width of lug boss 24 and thickness and loaded member 18 and consistency of thickness, and be positioned on the extended line of loaded member 18 length directions.
The first installing mechanism also comprise be arranged between the first cover plate 2 and an end of test specimen 7 gap between an end and the first cover plate 2 for eliminating test specimen 7 the first pad 20, be arranged on the first mounting groove 5 bottoms for adjusting an end of test specimen 7 at the second pad 21 of the first mounting groove 5 short transverse positions.
In the present embodiment, the second installing mechanism comprises the second installation portion 8, the second installation portion 8 offers second mounting groove 10 of the other end for placing test specimen 7 along its length, in an end of the second installation portion 8 and be positioned on the center line of the second installation portion 8 Widths and offer the second breach 9, the second breach 9 is communicated with the second mounting groove 10, and the width of the second breach 9 is less than the width of the second mounting groove 10.The part of test specimen 7 is stretched out the second installation portion 8 from the second breach 9.The second installing mechanism also comprises that the second cover plate 11, the second cover plates 11 that are arranged on the second mounting groove 10 tops are close to the surface of the second installation portion 8 and are fixedly connected with the second installation portion 8 by multiple the second securing members 12.
While specifically arranging, the second installation portion 8 is fixedly connected with loaded member 18, one end portion of loaded member 18 is positioned at the second mounting groove 10, in the other end of the second installation portion 8 and be positioned on the center line of the second installation portion 8 Widths and offer the 3rd breach 13, the 3rd breach 13 is communicated with the second mounting groove 10, the width of the 3rd breach 13 is less than the width of the second mounting groove 10, and the second installation portion 8 is stretched out from the 3rd breach 13 in the other end of loaded member 18.
The second installing mechanism also comprise be arranged between the second cover plate 11 and test specimen 7 gap between the other end and the second cover plate 11 for eliminating test specimen 7 the 3rd pad 22, be arranged on the second mounting groove 10 bottoms for adjusting the other end of test specimen 7 at the 4th pad 23 of the second mounting groove 10 short transverse positions.
In the present embodiment, on the symmetrical two side faces at the position not being connected with the second installing mechanism of loaded member 18, offer the 4th breach 19.Particularly, the 4th breach 19 symmetries offer 2.
In the present embodiment, groove 15, the first mounting groove 5 and the second mounting groove 10 threes' notch homonymy.
When the utility model is specifically used, process the thickness of test specimen 7 and the thickness stack pile of loaded member 18, select the first pad 20, the second pad 21, the 3rd pad 22 and the 4th pad 23, first an end of the first pad 20, test specimen 7 and the second pad 21 are put into the first mounting groove 5 successively, the center section of test specimen 7 stretches out the first installation portion 1 from the first breach 4, then the first cover plate 2 is locked by the first securing member 3 and the first installation portion 1.Then an end of the other end of the 3rd pad 22, test specimen 7, loaded member 18 and the 4th pad 23 are put into the second mounting groove 10 successively, and by the other end alignment of an end of loaded member 18 and test specimen 7, then the second cover plate 11 is locked by the second securing member 12 and the second installation portion 8.Then joint pin 6 is passed to connecting hole, allow the second installation portion 8 slip in groove 15 and to allow the other end of loaded member 18 stretch out limited block 14 from the through hole of limited block 14 upper limit portions.Then regulate the link position of limited block 14 and joint pin 6, screw on nut 16 and bolt 17 by fixing limited block 14.In installation process, the central plane of loaded member 18 thickness directions need with the central plane coplanar of test specimen 7 thickness directions.
While measuring the unloading of test specimen 7, stretching discharge mechanism of the present utility model is installed on testing machine and is tested, particularly, lug boss 24 is fixed in tester base, the other end of loaded member 18 is fixed on the loading chuck of testing machine.When loaded member 18 is subject to loading, will transmit loading force to test specimen 7 by the second installation portion 8, realize and loading.When the first installation portion 8 rises to given displacement, due to the restriction of limited block 14, the second installation portion 8 stops rising, and test specimen 7 keeps former stress.On the other hand, along with the further increase of loading force, will there is fracture at the 4th breach 19 places in loaded member 18, thereby realize the unloading to test specimen 7.
The loaded member 18 of stretching unloading test device of the present utility model can be by adopting the 4th different breach 19 sizes to control unloading force, and the size of the 4th breach 19 can be obtained the pulling strengrth of this material under different breach sizes by the tension test of a certain amount of breach size and determines.
Stretching unloading test device of the present utility model can be displacement control unloading, by limited block 14, the link position on joint pin 6 is controlled the sliding distance of the second installation portion 8, while making test specimen 7 be stretched to certain displacement, test specimen 7 is no longer stretched, and loaded member 18 is proceeded to stretch, last loaded member 18 fractures realize unloading; Also can be power control unloading, remove limited block 14, near the size of the 4th breach 19 in loaded member 18, control the size of unloading force.
Above the utility model is described in detail; its object is to allow the personage who is familiar with this art can understand content of the present utility model and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (10)
1. stretching unloading test device, it is characterized in that, comprise the first installing mechanism for an end of installation testing test specimen, be used for second installing mechanism of the other end that described test specimen is installed, the loaded member that one end is fixedly connected with described the second installing mechanism, the limited block being fixedly connected with described the first installing mechanism and be slidably connected with described the second installing mechanism, described limited block offers groove along its length, described the second installing mechanism is positioned at described groove and slides along described groove, the other end of described loaded member passes described limited block and arranges slidably with described limited block, described the first installing mechanism is at the central plane of Width, described the second installing mechanism is at the central plane of Width, described limited block is the equal isoplanar of central plane at Width in the central plane of Width and described loaded member.
2. stretching unloading test device according to claim 1, it is characterized in that, described the first installing mechanism comprises the first installation portion, described the first installation portion offers the first mounting groove of the end for placing described test specimen along its length, in an end of described the first installation portion and be positioned on the center line of described the first installation portion Width and offer the first breach, described the first breach is communicated with described the first mounting groove, the width of described the first breach is less than the width of described the first mounting groove, described the first installing mechanism also comprises the first cover plate that is arranged on described the first mounting groove top, described the first cover plate is close to the surface of described the first installation portion and is fixedly connected with described the first installation portion by multiple the first securing members.
3. stretching unloading test device according to claim 2, it is characterized in that, one end of described the first installation portion is fixedly connected with described limited block, two sides in an end of described the first installation portion are arranged with joint pin, described limited block is offering connecting hole with the corresponding position of described joint pin, described joint pin has external thread, described joint pin is provided with nut, and described joint pin is connected described the first installation portion with described nut through described connecting hole successively with described limited block.
4. stretching unloading test device according to claim 3, it is characterized in that, on the symmetrical two side faces of described limited block, offer threaded hole, described threaded hole is communicated with described connecting hole, is provided with the bolt for described limited block is fixedly connected with described joint pin in described threaded hole.
5. stretching unloading test device according to claim 4, is characterized in that, on described two side faces, along the length direction of described limited block, offers multiple threaded holes, and each described threaded hole correspondence is provided with a bolt.
6. stretching unloading test device according to claim 2, it is characterized in that, described the first installing mechanism also comprise between an end that is arranged on described the first cover plate and described test specimen the gap between an end and described the first cover plate for eliminating described test specimen the first pad, be arranged on described the first mounting groove bottom for adjusting an end of described test specimen at the second pad of described the first mounting groove short transverse position.
7. unloading test device according to claim 1, it is characterized in that, described the second installing mechanism comprises the second installation portion, described the second installation portion offers second mounting groove of the other end for placing described test specimen along its length, in an end of described the second installation portion and be positioned on the center line of described the second installation portion Width and offer the second breach, described the second breach is communicated with described the second mounting groove, the width of described the second breach is less than the width of described the second mounting groove, described the second installing mechanism also comprises the second cover plate that is arranged on described the second mounting groove top, described the second cover plate is close to the surface of described the second installation portion and is fixedly connected with described the second installation portion by multiple the second securing members.
8. stretching unloading test device according to claim 7, it is characterized in that, described the second installation portion is fixedly connected with described loaded member, one end portion of described loaded member is positioned at described the second mounting groove, in the other end of described the second installation portion and be positioned on the center line of described the second installation portion Width and offer the 3rd breach, described the 3rd breach is communicated with described two mounting grooves, the width of described the 3rd breach is less than the width of described the second mounting groove, and described the second installation portion is stretched out from described the 3rd breach in the other end of described loaded member.
9. stretching unloading test device according to claim 7, it is characterized in that, described the second installing mechanism also comprise be arranged between described the second cover plate and the other end of described test specimen the gap between the other end and described the second cover plate for eliminating described test specimen the 3rd pad, be arranged on described the second mounting groove bottom for adjusting the other end of described test specimen at the 4th pad of described the second mounting groove short transverse position.
10. stretching unloading test device according to claim 1, is characterized in that, the symmetrical two side faces on the position not being connected with described the second installing mechanism of described loaded member offers the 4th breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704287.7U CN203551387U (en) | 2013-11-08 | 2013-11-08 | Stretching-unloading testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704287.7U CN203551387U (en) | 2013-11-08 | 2013-11-08 | Stretching-unloading testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551387U true CN203551387U (en) | 2014-04-16 |
Family
ID=50469485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704287.7U Expired - Lifetime CN203551387U (en) | 2013-11-08 | 2013-11-08 | Stretching-unloading testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551387U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528890A (en) * | 2013-11-08 | 2014-01-22 | 清华大学苏州汽车研究院（相城） | Stretching and unloading testing device |
| CN105651598A (en) * | 2014-11-11 | 2016-06-08 | 金发科技股份有限公司 | High-speed strain testing apparatus and high-speed strain testing method based on line scan camera |
-
2013
- 2013-11-08 CN CN201320704287.7U patent/CN203551387U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528890A (en) * | 2013-11-08 | 2014-01-22 | 清华大学苏州汽车研究院（相城） | Stretching and unloading testing device |
| CN105651598A (en) * | 2014-11-11 | 2016-06-08 | 金发科技股份有限公司 | High-speed strain testing apparatus and high-speed strain testing method based on line scan camera |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202614598U (en) | High-intensity steel plate stretching auxiliary clamping device | |
| CN103043225B (en) | A kind of power control for aircraft structure strength test and position control are in conjunction with loading system and method | |
| CN104452595B (en) | The construction method of the single, double tensioning equipment to adjusting suspension cable of single, double ear muff cylinder | |
| CN203164050U (en) | Clamp device for tensile of ultrahigh-strength steel plates | |
| CN201740643U (en) | Select and shift cable detector | |
| CN203551387U (en) | Stretching-unloading testing device | |
| CN103528890A (en) | Stretching and unloading testing device | |
| CN202075142U (en) | Anti-sliding test device for rope clip of rope suspension bridge | |
| CN103105303A (en) | Loading device and method for car body strength test bed end wall | |
| CN104237014B (en) | High-speed dynamic compression test device | |
| CN104237015A (en) | High-speed dynamic compression testing device | |
| CN202582997U (en) | Tensile compressible double-shear clamp for testing shearing strength of material | |
| CN202101925U (en) | Plastic fastener insertion and extraction force testing fixture | |
| CN204116148U (en) | High speed dynamic compressive test device | |
| CN204269479U (en) | A kind of constant temperature uniaxial drawing loading of universal testing machine | |
| CN201757703U (en) | Gear selecting guy cable or gear shift guy cable detector | |
| CN204089024U (en) | The tower head end jig of one ± 800kV line tension tower replacing insulator string | |
| CN107589031B (en) | Check-up draws and presses reaction frame | |
| CN104236996B (en) | The test of a kind of adjustable arm of force loads load transfer device | |
| CN103512809A (en) | Equiaxial tensile test device for elastic material | |
| CN203455240U (en) | Equiaxial tensile testing device for elastic material | |
| CN205620235U (en) | Test device perforates at a high speed | |
| CN205749108U (en) | A kind of dynamic tensile test anti-slip cramping apparatus device | |
| CN202420971U (en) | Double-post type electronic tensile testing machine | |
| CN103616280B (en) | A kind of lifting table being applicable to horizontal tensile testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |