CN202002846U - Sample loading plate for measuring sample deformation in three point bending test - Google Patents
Sample loading plate for measuring sample deformation in three point bending test Download PDFInfo
- Publication number
- CN202002846U CN202002846U CN2011200347517U CN201120034751U CN202002846U CN 202002846 U CN202002846 U CN 202002846U CN 2011200347517 U CN2011200347517 U CN 2011200347517U CN 201120034751 U CN201120034751 U CN 201120034751U CN 202002846 U CN202002846 U CN 202002846U
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- sample
- loading plate
- point bending
- bending test
- deformation
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Abstract
The utility model discloses a sample loading plate for measuring sample deformation in a three point bending test. Two parallel knife edges (2) are arranged on one surface of the sample loading plate; two parallel guiding grooves (4) are formed on the other surface of the sample loading plate and in positions corresponding to the knife edges (2); and one or at most two through-holes (3) are formed on the center line of the sample loading plate (1). The sample loading plate has a simple structure, reduces the manufacturing of parts, cuts the production cost, can be freely combined, is suitable for various instruments and equipment for measuring the sample deformation in the three point bending test, and has wide uses.
Description
Technical field
The utility model belongs to the testing tool class, relates to the parts with three-point bending method test material tests, and particularly three point bending test is measured the load sample plate of sample deformation.
Background technology
The three point bending test device is widely used in the test of characteristic performance such as rupture strength, ess-strain, high-temerature creep of material.These performance datas of material, for judging its changes in microstructure, estimating its usability, very important.In test, the load sample plate is one of critical component of tester.
The patent No. be " 93224809.8 " patent disclosure a kind of " fire resistive material high temperature break resistant intensity test with multi-functional load sample mechanism ", its can't test sample stand under load direction tension force face strain, thereby it can only be applicable to the rupture strength of test material, and suitable limitation is big.The patent No. be " 200520031885.8 " patent disclosure " a kind of differential hyperthermia stress-strain testing machine with high temperature resistant load sample slide plate ", by having a plurality of measured holes and web member thereon, it has increased the complexity of article shape.And the increase of the special-shaped degree of goods will improve goods rejection rate in process of production, can improve goods spoilage in use equally, causes the raising of production cost and use cost; Also limited simultaneously the independent assortment of slide plate.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the load sample plate that provides a kind of three point bending test to measure sample deformation, the high temperature resistant load sample plate that high temperature resistant load sample plate of can be directly using as the hyperthermia stress-strain test instrument and hot bending creepmeter are used.
The purpose of this utility model can take following technical scheme to realize: described three point bending test is measured the load sample plate of sample deformation, one side at the load sample plate has two parallel edges of a knife, another side has two parallel guide grooves corresponding to the position of the edge of a knife, it is characterized in that having one or two through hole on the load sample plate center line.
The xsect of described through hole can be triangle, also can be polygon.
The utlity model has following characteristics: 1. because through hole has only one or two, load sample plate two ends no longer are provided with the connection jack, load sample plate shape is greatly simplified, make its in process of production rejection rate reduce greatly, simultaneously spoilage is greatly reduced, thereby reduced material, energy resource consumption; 2. the utility model is simple in structure, has reduced the manufacturing of parts, has reduced production cost, but 3. the utility model independent assortment; 4. this load sample plate is applicable to the instrument and equipment of multiple three point bending test measurement sample deformation, and is of many uses.
Description of drawings
Accompanying drawing 1 is a vertical view of the present utility model.
Accompanying drawing 2 is the A-A figure of Fig. 1.
Accompanying drawing 3 is a working state schematic representation of the present utility model.
In the accompanying drawing, 1, the load sample plate, 2, the edge of a knife, 3, through hole, 4, guide groove, 5, sample, 6, sounding rod, 7, pressure bar.
Embodiment
In conjunction with the accompanying drawings, specific embodiment of the utility model 1 is described.
In the burner hearth of hyperthermia stress-strain test instrument, on two guide rails of furnace bottom, place load sample plate 1; Load sample plate 1 long 50mm, above to be provided with 2, two edges of a knife 2 of two edges of a knife parallel to each other, its spacing meets the national standard 125mm of fire resistive material rupture strength; A through hole 3 is set on the longitudinal centre line of load sample plate 1; The xsect of through hole 3 is a hexagon; Load sample plate 1 bottom corresponds to two edge of a knife 2 positions two guide grooves parallel to each other 4 is set, and guide groove 4 matches with the guide rail of its below; Be provided with sounding rod 6 in the through hole 3, the top of sounding rod 6 is a dome shape, and its xsect is a hexagon, and its size matches with through hole 3, can move up and down in through hole 3, and its underpart links to each other with strain measurement system.
Working routine: after above-mentioned parts are in place, placing sample 5 on two edges of a knife 2, above the through hole 3, again sounding rod 6 is risen to the lower surface that its top just contacts sample 5, the upper surface of sample 5 contacts with pressure bar 7.
The burner hearth of hyperthermia stress-strain test instrument is risen to test temperature by test plan and temperature increasing schedule, behind the constant temperature, the follow procedure regulation is with 7 pairs of sample 5 stress applications of pressure bar, the distortion that sample 5 is taken place is passed to strain measurement system by sounding rod 6, through data processing, obtain the relation curve of ess-strain.
Present embodiment is applicable to plurality of specifications samples such as 25*25*150mm and 40*40*160mm; Because load sample plate 1 is simple in structure, can realize that a plurality of load sample plates 1 are used in combination.
In conjunction with the accompanying drawings, specific embodiment of the utility model 1 is described.
In the burner hearth of hot bending creep testing machine, on two guide rails of furnace bottom, place load sample plate 1; Load sample plate 1 long 300mm, above to be provided with 2, two edges of a knife 2 of two edges of a knife parallel to each other, its spacing 200mm; The width of the spacing of 3, two through holes 3 of two through holes less than sample is set on the longitudinal centre line of load sample plate 1, and this example is 150mm; Through hole 3 should be stopped enough distances with an end of load sample plate 1, and this example is 50mm; The xsect of through hole 3 is a hexagon; Load sample plate 1 bottom corresponds to two edge of a knife 2 positions two guide grooves parallel to each other 4 is set, and guide groove 4 matches with the guide rail of its below; The top of two sounding rods 6 is dome shape, and its xsect is a hexagon, and its size matches with its through hole that passes through 3, can move up and down in its through hole 3; Its corresponding deformation measuring system in the bottom of two sounding rods 6 links to each other.
Working routine: after above-mentioned parts are in place, on two edges of a knife 2, place sample 5, again sounding rod 6 is risen to the lower surface that its top just contacts sample 5 respectively, the upper surface of sample 5 contacts with pressure bar 7, or the upper surface of sample 5 is placed the weight of certain mass.
The burner hearth of hot bending creep testing machine is risen to test temperature by test plan and temperature increasing schedule, and the distortion that sample 5 is taken place is passed to strain measurement system by sounding rod 6, through data processing, obtains the relation curve of ess-strain.
Present embodiment is applicable to plurality of specifications samples such as 250*250* (5～50) mm and 400*300* (5～100) mm; Because load sample plate 1 is simple in structure, can realize that a plurality of load sample plates 1 are used in combination.
Claims (3)
1. a three point bending test is measured the load sample plate of sample deformation, it simultaneously has two parallel edges of a knife (2), another side has two parallel guide grooves (4) corresponding to the position of the edge of a knife (2), it is characterized in that, has one or two no more than two through hole (3) on load sample plate (1) center line.
2. three point bending test according to claim 1 is measured the load sample plate of sample deformation, and it is characterized in that: the xsect of described through hole (3) is a triangle.
3. three point bending test according to claim 1 is measured the load sample plate of sample deformation, it is characterized in that: the xsect of described through hole (3) is for being polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200347517U CN202002846U (en) | 2011-01-27 | 2011-01-27 | Sample loading plate for measuring sample deformation in three point bending test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200347517U CN202002846U (en) | 2011-01-27 | 2011-01-27 | Sample loading plate for measuring sample deformation in three point bending test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202002846U true CN202002846U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200347517U Expired - Lifetime CN202002846U (en) | 2011-01-27 | 2011-01-27 | Sample loading plate for measuring sample deformation in three point bending test |
Country Status (1)
| Country | Link |
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| CN (1) | CN202002846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504769A (en) * | 2020-05-27 | 2020-08-07 | 武汉科技大学 | Pressure transmission assembly of three-point bending loading device for testing flexural strength of refractory material |
-
2011
- 2011-01-27 CN CN2011200347517U patent/CN202002846U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504769A (en) * | 2020-05-27 | 2020-08-07 | 武汉科技大学 | Pressure transmission assembly of three-point bending loading device for testing flexural strength of refractory material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |