CN209542274U - A kind of short beam shear test fixture convenient for centering sample - Google Patents
A kind of short beam shear test fixture convenient for centering sample Download PDFInfo
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- CN209542274U CN209542274U CN201822127975.7U CN201822127975U CN209542274U CN 209542274 U CN209542274 U CN 209542274U CN 201822127975 U CN201822127975 U CN 201822127975U CN 209542274 U CN209542274 U CN 209542274U
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Abstract
The utility model discloses a kind of short beam shear test fixtures convenient for centering sample, support roller is mounted on the base and is oppositely arranged two, pressure roller is located above two support rollers, and the centre of span line face of the center line of pressure roller and two support rollers, the section of fixed supported slab is inverted L-type, its vertical side plate is located at the same side of two support rollers and fixes with support roller, its lateral side plate is located at the top of two support rollers, transverse slider, longitudinal sliding block is mounted in lateral side plate, sample to be tested is placed in two support rollers, adjust transverse slider, longitudinal sliding block acts on sample to be tested, sample to be tested is set to be located at the center between two support rollers.Fast and efficiently sample to be tested centering can be placed by this fixture, ensure that pressure roller is in sample to be tested bosom, so that load reaches the bosom face of sample to be tested, improve the accuracy of test data, ensure the repeatability tested, this fixture is easily installed, dismantles, and is applicable to different size of sample to be tested.
Description
Technical field
The utility model relates to a kind of short beam shear test fixture, especially a kind of short beam shear convenient for centering sample is tried
Test fixture.
Background technique
Polymer matrix composites have the series of advantages such as high specific strength, high ratio modulus, mechanical property designability be strong, existing
It has become and measures the advanced important symbol of military-civil equipment.Short beam shear test is to measure polymer matrix composites laminate layer
Between cutting performance important indicator, it is very crucial whether the centering of sample during test, directly influence the standard of test data
True property and accuracy.
Currently, major mechanism for testing and laboratory are all by human eye visually come in judging whether sample is put and set, not only
Time-consuming and laborious, inefficiency, and because of the difference of operator, so that experimental data not can guarantee repeatability and reproducible
Property.
With the promotion of the autonomous military-civil research & development in flight designed capacity in China, the confidence level of experimental data is proposed higher
It is required that the accuracy of especially data, objectivity, repeatability and reproducibility.It farthest reduces artificial in experiment
Uncertain factor, is the emphasis of experimental technique development from now on, and short beam shear test fixture of the design with sample centering device is
The certainty of experimental technique development.
Utility model content
Purpose of utility model: in view of the above problems, the object of the present invention is to provide a kind of convenient for the short of centering sample
Beam shearing test clamp, it is ensured that power load reaches the bosom face of sample when test.
Technical solution: a kind of short beam shear test fixture convenient for centering sample, including pedestal, support roller, pressure roller, and
The centralising device being made of fixed supported slab, transverse slider, longitudinal sliding block, the support roller are mounted on the base and set relatively
Set two, the pressure roller is located above two support rollers, and the center line of the pressure roller and two support rollers across
Away from center line face, the section of the fixed supported slab is inverted L-type, and vertical side plate is located at the same of two support rollers
Side is simultaneously fixed with the support roller, and lateral side plate is located at the top of two support rollers, and the transverse slider, longitudinal direction are sliding
Block is mounted in the lateral side plate, and sample to be tested is placed in two support rollers, adjusts the transverse slider, longitudinal sliding block
The sample to be tested is acted on, the sample to be tested is made to be located at the center between two support rollers.
Further, the transverse slider, offer elongated slot on longitudinal sliding block, the elongated slot is arranged in by fastening bolt
The transverse slider, longitudinal sliding block are mounted in the lateral side plate.
Further, the U-type groove for placing the sample to be tested is offered in the lateral side plate, so as to transverse slider, is indulged
Sample to be tested is acted on around sample to be tested to sliding block.
Further, the centralising device be equipped with graduation mark, graduation mark vertical side plate, lateral side plate, transverse slider,
It is all settable on longitudinal sliding block, alignment when for adjusting.
Further, translot is offered on the vertical side plate, being arranged in the translot by fastening bolt will be described perpendicular
It is mounted in the support roller to side plate, span is also adjusted when being connected to vertical side plate so as to support roller.
The utility model has the advantages that compared with prior art, the utility model has the advantages that: experimenter by this fixture can quickly,
Efficiently sample to be tested centering is placed, it is ensured that pressure roller is in the bosom of sample to be tested, reaches capable load to be measured
The bosom face of sample, improves the accuracy of test data, it is ensured that the repeatability of experiment, while test effect can also be improved
Rate reduces cost, this fixture is easily installed, dismantles, and is applicable to different size of sample to be tested, has certain versatility.
Detailed description of the invention
Fig. 1 is one of the utility model schematic perspective view；
Fig. 2 is the two of the utility model schematic perspective view, is the back side of Fig. 1；
Fig. 3 is centralising device schematic perspective view.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.
A kind of short beam shear test fixture convenient for centering sample, as shown in attached drawing 1~3, including pedestal 1, support roller 2,
Pressure roller 3, centralising device 4, centralising device 4 include fixed supported slab 41, transverse slider 42, longitudinal sliding block 43.
Support roller 2 is oppositely arranged two on pedestal 1, and the section of fixed supported slab 41 is inverted L-type, vertical side plate
411 are located at the same side of two support rollers 2, and lateral side plate 412 is located at the top of two support rollers 2, one of support
Roller 2 and vertical side plate 411 are fixed, and the translot 415 opened up in another support roller 2 and vertical side plate 411 is worn by fastening bolt
If connection, pressure roller 3 is located at two support rollers, 2 top, and pressure roller 3 is cylindrical body, another support roller 2 is adjusted a left side along translot 415
It moves right, adjusts the span between two support rollers 2, make the center line face of centre of span line Yu pressure roller 3, then tighten fastening
Bolt keeps fixed supported slab 41 and support roller 2 fixed.
Sample to be tested 5, which should be laid flat, to be placed in two support rollers 2, U-type groove 413 is offered in lateral side plate 412, confession is to be measured
Sample 5 is placed in this, and elongated slot is offered on transverse slider 42, longitudinal sliding block 43, and transverse slider 42, about 43 longitudinal sliding block are folded
It sets, elongated slot is arranged in by fastening bolt and is mounted in lateral side plate 412, transverse slider 42, longitudinal sliding block 43 can be to be measured
5 two sides of sample are respectively provided with, and by adjusting transverse slider 42, longitudinal sliding block 43 acts on sample to be tested 5, are located at sample to be tested 5
Center between two support rollers 2, that is, requirement needed for reaching test.Vertical side plate 411, lateral side plate 412, transverse slider
42, graduation mark 414, alignment when for adjusting can be all equipped on longitudinal sliding block 43.
The material of centralising device can be the work of the high intensity such as aluminium alloy, steel, carbon fibers/fiberglass composite material, ABS
Engineering plastics.
Claims (5)
1. a kind of short beam shear test fixture convenient for centering sample, it is characterised in that: including pedestal (1), support roller (2), pressure
Roller (3), and the centralising device (4) being made of fixed supported slab (41), transverse slider (42), longitudinal sliding block (43), the support
Roller (2) is mounted on the pedestal (1) and is oppositely arranged two, and the pressure roller (3) is located above two support rollers (2),
And the centre of span line face of the center line of the pressure roller (3) and two support rollers (2), the fixed supported slab (41) are cut
Face be inverted L-type, vertical side plate (411) be located at the same side of two support rollers (2) and with the support roller (2)
Fixed, lateral side plate (412) is located at the top of two support rollers (2), the transverse slider (42), longitudinal sliding block (43)
It is mounted on the lateral side plate (412), sample to be tested is placed on two support rollers (2), adjusts the transverse slider
(42), longitudinal sliding block (43) acts on the sample to be tested, between so that the sample to be tested is located at two support rollers (2) in
Heart position.
2. a kind of short beam shear test fixture convenient for centering sample according to claim 1, it is characterised in that: the cross
Elongated slot is offered on (43) to sliding block (42), longitudinal sliding block, the elongated slot is arranged in for the transverse slider by fastening bolt
(42), longitudinal sliding block (43) is mounted on the lateral side plate (412).
3. a kind of short beam shear test fixture convenient for centering sample according to claim 1, it is characterised in that: the cross
The U-type groove (413) for placing the sample to be tested is offered on side plate (412).
4. a kind of short beam shear test fixture convenient for centering sample according to claim 1, it is characterised in that: described right
Middle device (4) is equipped with graduation mark (414).
5. a kind of short beam shear test fixture convenient for centering sample according to claim 1, it is characterised in that: described perpendicular
Translot (415) are offered on side plate (411), and the translot (415) is arranged in for the vertical side plate by fastening bolt
(411) it is mounted on the support roller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127975.7U CN209542274U (en) | 2018-12-18 | 2018-12-18 | A kind of short beam shear test fixture convenient for centering sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127975.7U CN209542274U (en) | 2018-12-18 | 2018-12-18 | A kind of short beam shear test fixture convenient for centering sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209542274U true CN209542274U (en) | 2019-10-25 |
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ID=68265954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822127975.7U Active CN209542274U (en) | 2018-12-18 | 2018-12-18 | A kind of short beam shear test fixture convenient for centering sample |
Country Status (1)
| Country | Link |
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| CN (1) | CN209542274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067433A (en) * | 2020-08-24 | 2020-12-11 | 中国飞机强度研究所 | Auxiliary centering installation device for composite material rail shear test |
-
2018
- 2018-12-18 CN CN201822127975.7U patent/CN209542274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067433A (en) * | 2020-08-24 | 2020-12-11 | 中国飞机强度研究所 | Auxiliary centering installation device for composite material rail shear test |
| CN112067433B (en) * | 2020-08-24 | 2023-09-22 | 中国飞机强度研究所 | Auxiliary centering installation device for composite material track shear test |
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