CN107271287A - A kind of horizontal-type biaxial extension test testing machine and tensile test method - Google Patents
A kind of horizontal-type biaxial extension test testing machine and tensile test method Download PDFInfo
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- CN107271287A CN107271287A CN201710545842.9A CN201710545842A CN107271287A CN 107271287 A CN107271287 A CN 107271287A CN 201710545842 A CN201710545842 A CN 201710545842A CN 107271287 A CN107271287 A CN 107271287A
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- horizontal
- testing machine
- agent structure
- type biaxial
- pull bar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of horizontal-type biaxial extension test testing machine and tensile test method, including agent structure (1), the agent structure is the large diameter thick wall steel pipe after machining, horizontal homogeneous installs hollow jack (3) on agent structure outer peripheral face, is each connected between hollow jack and agent structure by ring flange (2).Each hollow jack is connected with pressure sensor (4), hexagonal lock nut (5), pull bar (6), built-up jig successively, constitutes transmission system.The face that agent structure is connected with ring flange is the plane after processing.Built-up jig is connected on pull bar and can moved along a straight line with pull bar.Built-up jig is used to clamp sample.Present invention also offers a kind of method that above-mentioned horizontal-type biaxial extension test testing machine carries out biaxial stretch-formed test, horizontal-type biaxial extension test testing machine structure is compact, form is succinct for this, easy to adjust, Comparision is steady, can realize synchronization and Central Symmetry is loaded, with a variety of test functions.
Description
Technical field
The present invention relates to a kind of horizontal-type biaxial extension test testing machine technology, belong to engineering material, physical property, structure shape
Become and Experiments of Machanics technology technical field, it can be used for test material, especially light sheet material biaxially bearing to stretch and tired
The mechanical characteristic of labor load.
Background technology
Traditional uniaxial tension detection test method can not reflect stressing conditions of the material in Practical Project strictly according to the facts, because
This mechanical test experiment carried out to material under biaxial stress state is just particularly important.There are a variety of twin shafts both at home and abroad at present
Testing machine, can be divided into hydraulic-driven by driving type and motor drives, two methods respectively have quality.
" vertical double-shaft four-cylinder electro-hydraulic servo testing machine " of the works such as Fang Daining, Li Yueguang, Bao Pei
(ZL.200610012089.9) a kind of vertical double-shaft four-cylinder electro-hydraulic servo testing machine is have developed, electro-hydraulic servo is used, however it is a whole set of
System architecture is huge, excessively complicated, is unfavorable for producing and assembles, clamped specimen size is limited.
Chen Wujun, Shi Guanglin, Zhang Lizhu " electro-hydraulic loading system of thin-film biaxial tensile testing machine "
(ZL.20111107672.9) electrohydraulic control system of film biaxial tension-compression strength machine is have developed, two are controlled using two groups of valves
Axle, but the synchronism of system, dynamic response characteristic are not fine.
Chen Wujun, a kind of high " biaxial stretch-formed test device " (ZL.20151005909.0) development established an army, apply light woods work
The biaxial stretch-formed test device of welding for steel structure a kind of, is driven using servo-cylinder, utilizes horizontal stand and line slideway to pass
It is dynamic, but complicated integral structure, and assemble welding is difficult to ensure that precision.
The content of the invention
Technical problem：In view of the shortcomings of the prior art and defect, survey it is an object of the invention to provide one kind is biaxial stretch-formed
Testing machine and tensile test method are tried, using the hydraulic-driven for being directly realized by any biaxial stress.It is set to realize together
Step and Central Symmetry loading, and with many test functions, (unidirectional static stretch, low Zhou Xunhuan come and go stretching, and bidirectional static is drawn
Stretch intensity, the low Zhou Xunhuan of any biaxiality and come and go stretching), while having clamping convenience, low-frictional force, compact conformation and letter
Clean, easy to adjust, Comparision is steady, reaction is fast, the advantages of quickly start.
Technical scheme：In order to solve the above technical problems, the invention provides a kind of horizontal-type biaxial extension test testing machine, bag
Agent structure is included, the agent structure is large diameter thick wall steel pipe, if horizontal homogeneous is installed on described agent structure outer peripheral face
Hollow jack is done, is each connected between the hollow jack and agent structure by ring flange；It is each it is described in
Pressure sensor, hexagonal lock nut, pull bar, built-up jig are sequentially installed with empty jack outside agent structure to be connected,
Constitute transmission system；The built-up jig is used to clamp sample.
It is preferred that, the face that the agent structure is connected with ring flange is the plane after processing；The ring flange passes through spiral shell
Bolt is fixedly connected with the agent structure；The ring flange is fixedly connected by bolt with hollow jack.
It is preferred that, the piston of the hollow jack is connected with pressure sensor, the pressure sensor and the hexagonal
Lock nut is connected, and the pressure sensor and the hexagonal lock nut are detachable, mobilizable on the pull bar.
It is preferred that, the hollow jack is connected by oil pipe with hydraulic control system and oil sources, for realizing not Tongfang
The independent control of upward pulling force.
It is preferred that, the built-up jig is arranged on the pull bar and can moved along a straight line with the pull bar；The combination
Fixture includes clamp body and upper tabletting, and the clamp body and the upper tabletting are connected by bolt and nut pad；The clamp body
The tapped through hole of tapped through hole, the tapped through hole of the clamp body and the upper tabletting is provided with the front end of the upper tabletting
Coordinate to clamp sample.
It is preferred that, after the sample is placed on the clamp body, the upper tabletting and the fixture physical efficiency by bolt,
Nut, pad link together, to prevent the sample from skidding off.
Present invention also offers a kind of horizontal-type biaxial extension test test method, this method comprises the following steps：
The first step, moves the pull bar and the clamp body to correct position；
Second step, the described built-up jig is clamped respectively four arms of curciform specimen；
3rd step, is that the piston of the hollow jack stretches out the stretching examination by power source and hydraulic control system
Sample, so as to realize tensile loads.
It is preferred that, the pattern of the tensile loads is power Loading Control pattern, and the power Loading Control pattern is by pressure
Force snesor measures the size that pressure data feeds back to the power of hydraulic control system controlled loading in real time.
Beneficial effect：Compared with prior art, the present invention has advantages below：
The characteristics of present invention makes full use of hollow jack, built-up jig, realizes the biaxial stretch-formed testing experiment of novel horizontal
Machine compact conformation, operate steadily, it is easy to adjust, with many test functions (unidirectional static stretch, low Zhou Xunhuan come and go stretching, it is double
Stretching is come and gone to static stretch intensity, the low Zhou Xunhuan of any biaxiality), it can be applied to uniaxial tensile test testing machine, double
Axle extension test testing machine etc..
In addition, the agent structure of the horizontal-type biaxial extension test testing machine of the present invention uses the shape of large diameter thick wall steel pipe
Formula, so both can guarantee that bulk strength, rigidity, can easily assemble again；
The technique effect of the design of the present invention, concrete structure and generation is further described below with reference to accompanying drawing,
To be fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is the top view of the horizontal-type biaxial extension test testing machine of the preferred embodiment of the present invention；
Fig. 2 is the isometric view of the horizontal-type biaxial extension test testing machine of the preferred embodiment of the present invention；
Fig. 3 is the front view of the horizontal-type biaxial extension test testing machine of the preferred embodiment of the present invention；
Fig. 4 is the signal of the transmission system of the horizontal-type biaxial extension test testing machine of the preferred embodiment of the present invention
Figure；
Fig. 5 is the signal of the built-up jig of the horizontal-type biaxial extension test testing machine of the preferred embodiment of the present invention
Figure；
Fig. 6 is the plane of the tested sample of the horizontal-type biaxial extension test testing machine of the preferred embodiment of the present invention
Figure.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, technical scheme will be entered below
Row is described in detail.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the present invention, obtained by those of ordinary skill in the art are not on the premise of creative work is made
Every other embodiment, belong to the scope protected of the present invention.
The horizontal-type biaxial extension test testing machine of the present invention, including agent structure 1, the agent structure 1 are that heavy caliber is thick
Horizontal homogeneous installs some hollow jack 3, each hollow jack 3 on wall steel pipe, the described outer peripheral face of agent structure 1
It is connected between agent structure 1 by ring flange 2；It is located at the outside of agent structure 1 on each hollow jack 3
It is sequentially installed with pressure sensor 4, hexagonal lock nut 5, pull bar 6, built-up jig to be connected, constitutes transmission system；The built-up jig
For clamping sample 8.
The agent structure 1 and the plane that the face that ring flange 2 is connected is after processing；The ring flange 2 passes through bolt 10
It is fixedly connected with the agent structure 1；The ring flange 2 is fixedly connected by bolt 11 with hollow jack 3.
The piston of the hollow jack 3 is connected with pressure sensor 4, the pressure sensor 4 and the hexagonal lock nut 5
It is connected, the pressure sensor 4 and the hexagonal lock nut 5 are detachable, mobilizable on the pull bar 6.
The hollow jack 3 is connected by oil pipe with hydraulic control system and oil sources, for realizing that different directions are pulled up
The independent control of power.
The built-up jig is arranged on the pull bar 6 and can moved along a straight line with the pull bar 6；The built-up jig bag
Clamp body 7 and upper tabletting 9 are included, the clamp body 7 and the upper tabletting 9 are connected by bolt and nut pad；The He of clamp body 7
The front end of the upper tabletting 9 is provided with the screw thread of tapped through hole, the tapped through hole 16 of the clamp body 7 and the upper tabletting 9
Through hole 15 coordinates to clamp sample 8.
After the sample 8 is placed on the clamp body 7, the upper tabletting 9 and the clamp body 7 can by bolt 12,
Nut 14, pad 13 link together, to prevent the sample 8 from skidding off.
The horizontal-type biaxial tensile test method of the present invention, method comprises the following steps：
The first step, the mobile pull bar 6 and the clamp body 7 to correct position；
Second step, the described built-up jig is clamped respectively four arms of curciform specimen 8；
3rd step, is that the piston of the hollow jack 3 stretches out the stretching examination by power source and hydraulic control system
Sample 8, so as to realize tensile loads.
The pattern of the tensile loads is power Loading Control pattern, and the power Loading Control pattern is by pressure sensor
4 measure the size that pressure data feeds back to the power of hydraulic control system controlled loading in real time.
As shown in figures 1-4, a preferred embodiment of the invention provides a kind of horizontal-type biaxial extension test testing machine,
Its structure includes agent structure 1, ring flange 2, hollow jack 3, pressure sensor 4, hexagonal lock nut 5, pull bar 6 and built-up jig
Deng.Wherein, built-up jig includes clamp body 7 and top board 9.Agent structure 1 is equal on large diameter thick wall steel pipe, its outer circumference surface
Even four planes processed are fixed with bolt 10 with ring flange 2, and ring flange 2 connects hollow jack 3 by bolt 11.Often
Individual hollow jack 3 is connected with pressure sensor 4, hexagonal lock nut 5, pull bar 6, clamp body 7 successively, constitutes transmission system.Folder
Specific 8 and upper tabletting 9 be used for clamp curciform specimen 8.
Pressure sensor 4, hexagonal lock nut 5 are arranged on pull bar 6 and can moved along pull bar 6, specifically, and pressure is passed
Sensor 4 is connected on pull bar 6 by hole axle, and hexagonal lock nut is threadedly attached on pull bar 6.
Hollow jack 3 is connected by oil pipe with hydraulic control system and hydraulic power source, and different directions upper pulling force can be achieved
Independent control.
Four transmission systems of the present embodiment are symmetrical consistent, and the arrangement of each part in each transmission system is pair
Claim unanimously.
Fig. 5 is the schematic diagram that built-up jig clamps sample.As shown in figure 5, the front end extension of clamp body 7 is used to hold
The bare terminal end of sample 8 and upper tabletting 9, the front end of clamp body 7 are provided with bolt hole 16, the bare terminal end of the arm of curciform specimen 8 and are provided with
The bolt hole 17 of same distribution, the upper front end of tabletting 9 is also equipped with the bolt hole 15 of same distribution, clamp body 7, curciform specimen 8
It can be connected and fasten by bolt 12, pad 13 and nut 14 with upper tabletting 9, the screwed hole 20 of clamp body 7 is used for and pull bar 6 connects
Connect.
The scantling of embodiments of the invention, material selection, technological design can be determined for concrete application, including main body
The height and diameter, the size of ring flange 2 and thickness of structure, the model parameter of hollow jack 3, the model of pressure sensor 4 ginseng
Number, the flat shape size of hexagonal lock nut 5 and thickness, the diameter of pull bar 6 and length, the size of clamp body 7, the chi of upper tabletting 8
It is very little.Agent structure 1 can use steel, surface spraying antirust paint, hexagonal lock nut 5, the processing of the surface blackening of pull bar 6, clamp body 7 and upper pressure
The Quenching Treatment of piece 9.
The sample that horizontal double all extension test testing machines of the present embodiment are used is curciform specimen, as shown in fig. 6, examination
The thickness of the central area 18 of sample is compared bare terminal end and is thinned, and effective coverage is a diameter of 50mm circle, four arm brachiums of sample
It is 110mm, wide arm is 90mm.7~9 slotted eyes 19 are provided with four arms of sample, the purpose of 7~9 slotted eyes is designed
It is to make the stress of sample central area 18 more uniform.Four arm ends of sample are retained part, and retained part is provided with
Bolt hole 17.When being tested, curciform specimen 8 is clamped in clamp body 7 and top board 9, passes through bolt 12, pad 13
Connect and fasten with nut 14.
The experimentation of the horizontal-type biaxial extension test testing machine of the present embodiment comprises the following steps：
The first step, mobile pull bar 6 and clamp body 7 to correct position.
Second step, curciform specimen 8 is clamped by clamp body 7 and upper tabletting 9 by bolt 12, pad 13 and nut 14 respectively
Four arms.
3rd step, by power source and hydraulic control system, stretches out the piston of hollow jack 3 and stretches cross examination
Sample 8, so as to realize tensile loads.
Loading mode in the present embodiment is power loading mode, measures pressure data in real time by pressure sensor and feeds back to
The size of the power of hydraulic control system controlled loading.
Presently preferred embodiments of the present invention described in detail above.It should be appreciated that one of ordinary skill in the art is without wound
The property made work just can make many modifications and variations according to the design of the present invention.Therefore, all those skilled in the art are according to this
The design of invention is real by the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology
Test, all should be in the protection domain being defined in the patent claims.
Claims (8)
1. a kind of horizontal-type biaxial extension test testing machine, including agent structure (1), it is characterised in that the agent structure (1) is
Horizontal homogeneous installs some hollow jack (3), Mei Gesuo on large diameter thick wall steel pipe, described agent structure (1) outer peripheral face
State and be connected between hollow jack (3) and agent structure (1) by ring flange (2)；Each hollow jack (3)
Upper agent structure (1) outside that is located at is sequentially installed with pressure sensor (4), hexagonal lock nut (5), pull bar (6), built-up jig phase
Even, transmission system is constituted；The built-up jig is used to clamp sample (8).
2. horizontal-type biaxial extension test testing machine according to claim 1, it is characterised in that the agent structure (1) with
The connected face of ring flange (2) is the plane after processing；The ring flange (2) passes through bolt (10) and the agent structure (1)
It is fixedly connected；The ring flange (2) is fixedly connected by bolt (11) with hollow jack (3).
3. horizontal-type biaxial extension test testing machine according to claim 1, it is characterised in that the hollow jack (3)
Piston be connected with pressure sensor (4), the pressure sensor (4) is connected with the hexagonal lock nut (5), the pressure sensing
Device (4) and the hexagonal lock nut (5) are detachable, mobilizable on the pull bar (6).
4. horizontal-type biaxial extension test testing machine according to claim 1, it is characterised in that the hollow jack (3)
It is connected by oil pipe with hydraulic control system and oil sources, the independent control for realizing different directions upper pulling force.
5. horizontal-type biaxial extension test testing machine according to claim 1, it is characterised in that the built-up jig is arranged on
It can move along a straight line on the pull bar (6) and with the pull bar (6)；The built-up jig includes clamp body (7) and upper tabletting
(9), the clamp body (7) and the upper tabletting (9) are connected by bolt and nut pad；The clamp body (7) and the upper pressure
The front end of piece (9) is provided with tapped through hole, the tapped through hole (16) of the clamp body (7) and the screw thread of the upper tabletting (9)
Through hole (15) coordinates to clamp sample (8).
6. horizontal-type biaxial extension test testing machine according to claim 5, it is characterised in that the sample (8) is placed in
After on the clamp body (7), the upper tabletting (9) and the clamp body (7) can pass through bolt (12), nut (14), pad
(13) link together, to prevent the sample (8) from skidding off.
7. a kind of tensile test method of horizontal-type biaxial extension test testing machine as claimed in claim 1, it is characterised in that should
Method comprises the following steps：
The first step, moves the pull bar (6) and the clamp body (7) to correct position；
Second step, the described built-up jig is clamped respectively four arms of curciform specimen (8)；
3rd step, is that the piston of the hollow jack (3) stretches out the stretching sample by power source and hydraulic control system
(8), so as to realize tensile loads.
8. the tensile test method of horizontal-type biaxial extension test testing machine according to claim 7, it is characterised in that described
The pattern of tensile loads is power Loading Control pattern, and the power Loading Control pattern is measured in real time by pressure sensor (4)
Pressure data feeds back to the size of the power of hydraulic control system controlled loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545842.9A CN107271287A (en) | 2017-07-06 | 2017-07-06 | A kind of horizontal-type biaxial extension test testing machine and tensile test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545842.9A CN107271287A (en) | 2017-07-06 | 2017-07-06 | A kind of horizontal-type biaxial extension test testing machine and tensile test method |
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| CN107271287A true CN107271287A (en) | 2017-10-20 |
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| CN201710545842.9A Pending CN107271287A (en) | 2017-07-06 | 2017-07-06 | A kind of horizontal-type biaxial extension test testing machine and tensile test method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941613A (en) * | 2017-11-15 | 2018-04-20 | 江苏铂影数据科技有限公司 | Biological respinse and soft tissue mechanics multifunctional testing integrated instrument |
| CN108458940A (en) * | 2018-01-15 | 2018-08-28 | 东南大学 | The biaxial stretch-formed fatigue test piece and its test method of conic section transition |
| CN108871671A (en) * | 2018-07-19 | 2018-11-23 | 浙江工业大学 | A kind of introducing device of any residual stress of plane |
| CN109159402A (en) * | 2018-08-31 | 2019-01-08 | 天津万华股份有限公司 | A kind of film cupping machine and stretching test method |
| CN110296882A (en) * | 2019-04-22 | 2019-10-01 | 上海大学 | A kind of biaxial stretch-formed test specimen of cross silica gel and its preparation and stretching test method |
| CN113959831A (en) * | 2021-11-04 | 2022-01-21 | 西安建筑科技大学 | Double-shaft compression test device and method for bamboo and wood materials |
| CN114198238A (en) * | 2021-12-30 | 2022-03-18 | 中国长江电力股份有限公司 | Force conversion device and method for hydroelectric generating set |
| CN115290304A (en) * | 2022-05-20 | 2022-11-04 | 天津大学 | Large-scale structure fatigue sample clamping device |
| CN115356193A (en) * | 2022-07-12 | 2022-11-18 | 天津大学 | Micro-stretching mechanical experiment table for biological film |
| CN116380632A (en) * | 2023-06-05 | 2023-07-04 | 江苏冠创医疗科技有限公司 | Binding clip toughness testing device and method of ligature clip applying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941613A (en) * | 2017-11-15 | 2018-04-20 | 江苏铂影数据科技有限公司 | Biological respinse and soft tissue mechanics multifunctional testing integrated instrument |
| CN108458940A (en) * | 2018-01-15 | 2018-08-28 | 东南大学 | The biaxial stretch-formed fatigue test piece and its test method of conic section transition |
| CN108871671A (en) * | 2018-07-19 | 2018-11-23 | 浙江工业大学 | A kind of introducing device of any residual stress of plane |
| CN109159402A (en) * | 2018-08-31 | 2019-01-08 | 天津万华股份有限公司 | A kind of film cupping machine and stretching test method |
| CN110296882A (en) * | 2019-04-22 | 2019-10-01 | 上海大学 | A kind of biaxial stretch-formed test specimen of cross silica gel and its preparation and stretching test method |
| CN110296882B (en) * | 2019-04-22 | 2022-01-07 | 上海大学 | Cross-shaped silica gel biaxial tensile test piece and preparation and tensile test method thereof |
| CN113959831A (en) * | 2021-11-04 | 2022-01-21 | 西安建筑科技大学 | Double-shaft compression test device and method for bamboo and wood materials |
| CN113959831B (en) * | 2021-11-04 | 2024-02-02 | 西安建筑科技大学 | Double-shaft compression test device and method for bamboo and wood materials |
| CN114198238A (en) * | 2021-12-30 | 2022-03-18 | 中国长江电力股份有限公司 | Force conversion device and method for hydroelectric generating set |
| CN115290304A (en) * | 2022-05-20 | 2022-11-04 | 天津大学 | Large-scale structure fatigue sample clamping device |
| CN115290304B (en) * | 2022-05-20 | 2024-04-12 | 天津大学 | Large-scale structure fatigue test sample clamping device |
| CN115356193A (en) * | 2022-07-12 | 2022-11-18 | 天津大学 | Micro-stretching mechanical experiment table for biological film |
| CN116380632A (en) * | 2023-06-05 | 2023-07-04 | 江苏冠创医疗科技有限公司 | Binding clip toughness testing device and method of ligature clip applying device |
| CN116380632B (en) * | 2023-06-05 | 2023-08-11 | 江苏冠创医疗科技有限公司 | Binding clip toughness testing device and method of ligature clip applying device |
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Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |