CN202947727U - Self-made simple stress strain test experiment apparatus - Google Patents
Self-made simple stress strain test experiment apparatus Download PDFInfo
- Publication number
- CN202947727U CN202947727U CN 201220678875 CN201220678875U CN202947727U CN 202947727 U CN202947727 U CN 202947727U CN 201220678875 CN201220678875 CN 201220678875 CN 201220678875 U CN201220678875 U CN 201220678875U CN 202947727 U CN202947727 U CN 202947727U
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- distribution beam
- test specimen
- self
- stress strain
- jack
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Abstract
The utility model provides a self-made simple stress strain test experiment apparatus, comprising a pressure sensor, a counterforce beam, a distribution beam, a force transmission jack and supporting jacks, wherein the counterforce beam is fixed above the distribution beam through a support, the bottom portion of the distribution beam is provided with the force transmission jack, both sides of the upper portion of the distribution beam are respectively provided one supporting jack, a sample member is arranged at the middle portion of the upper surface of the distribution beam, and between the top portion of the sample member and the counterforce beam there is provided the pressure sensor connected with a stress strain gage. The self-made simple stress strain test experiment apparatus is simple in assembling and convenient in operation, and can conveniently satisfy the demands of a stress strain test experiment under the conditions that the testing apparatuses are insufficient at construction fields.
Description
Technical field
The utility model relates to test specimen stress-strain test field, the specifically simple and easy stress-strain test experimental provision of a kind of self-control.
Background technology
At the construction field (site) or in the incomplete situation of Specialty Experiment device, sometimes need the parameters such as physical and mechanical property of test specimen.At this moment, just need to utilize suitable experimental provision that it is tested, and will find suitable experimental provision inconvenient temporarily, perhaps find suitable experimental provision to be inconvenient to again transport, bring inconvenience with regard to the stress-strain tester of giving test specimen like this.
Summary of the invention
For the above-mentioned deficiency of prior art, the utility model provides a kind of self-control simple and easy stress-strain test experimental provision, and simple in structure, handled easily can solve the test specimen stress-strain tester problem in the incomplete situation of Specialty Experiment device.
The simple and easy stress-strain test experimental provision of a kind of self-control, comprise pressure transducer, reaction beam, distribution beam, power transmission lifting jack and support jack, reaction beam is fixed on the top of distribution beam by support, the bottom of distribution beam arranges the power transmission lifting jack, the both sides, top of distribution beam arrange respectively support jack, test specimen is placed on the middle part of distribution beam upper surface, and the pressure transducer that is connected with stress-strain gage is set between the top of test specimen and reaction beam.
The utility model assembling is simple, easy to operate, for the inadequate situation of the test units such as working-yard, can satisfy easily the requirement of stress-strain test test.
Description of drawings
Fig. 1 is the structural representation of the simple and easy stress-strain test experimental provision of the utility model self-control.
In figure: the 1-pressure transducer; The 2-test specimen; The 3-reaction beam; 4-power transmission lifting jack; The 5-distribution beam; The 6-support jack; The 7-support; The 8-top board; The 9-lower platen.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.Please refer to Fig. 1, the simple and easy stress-strain test experimental provision of the utility model self-control comprises pressure transducer 1, reaction beam 3, distribution beam 5, power transmission lifting jack 4 and support jack 6, reaction beam 3 is fixed on the top of distribution beam 5 by support 7, the bottom of distribution beam 5 arranges power transmission lifting jack 4, the both sides, top of distribution beam 5 arrange respectively support jack 6, test specimen 2 is placed on the middle part of distribution beam 5 upper surfaces, and the pressure transducer 1 that is connected with stress-strain gage is set between the top of test specimen 2 and reaction beam 3.Test specimen 2 can be located between top board 8 and lower platen 9, and top board 8 is arranged on the top of test specimen 2, contacts with pressure transducer 1; Lower platen 9 is arranged on the bottom of test specimen 2, contacts with the upper surface of distribution beam 5.
The utility model utilizes reaction beam 3 and 4 pairs of test specimens 2 of power transmission lifting jack to load, and coordinates fixedly test specimen 2 of support jack 6, settles pressure transducer 1 between test specimen 2 and reaction beam 3, and pressure transducer 1 connects stress-strain gage, and reading is carried out in the counter stress strain.In described experimental provision, except pressure transducer 1 and test specimen 2, all the other each steels connect with spot welding.Power transmission lifting jack 4 is hydraulic jack, can controlled loading size and speed by Oil Switch.Test specimen 2 pressures are by pressure transducer 1 reading.
The utility model first with axle center and the center of top board 8 and the centrally aligned of pressure transducer 1 of test specimen 2, is placed on the midline that lower platen 9 delimited in use.Then, jacking power transmission lifting jack 4, test specimen 2 continuous uniforms are loaded to and the control load that is approximately axial compressive strength 30%～40%, then off-load is extremely zero at the same rate, precompressed is 3 times so repeatedly, whether normal in order to the working condition of observing power transmission lifting jack 4 and stress-strain gage, if any undesired, adjust.If test specimen 2 sides read the difference of linear deformation value greater than 20% of distortion mean value, need to adjust the test specimen position.If after precompressed 3 times, power transmission lifting jack 4 and stress-strain gage are working properly, jacking speed that can be same is tested loading.The effect one of support jack 6 is can be in order to steady experimental device when holding the lotus test, the 2nd, during unloading, slightly unclamp the throttle of power transmission lifting jack 4 firmly stable, then the synchronous loading by support jack 6 makes whole unloading decline, like this than separately whole decline of throttle amplification of power transmission lifting jack 4 being stablized.
When carrying out stress-strain tester, first be loaded to the initial payload values of 0.5MPa, keep reading initial reading after 30s; Then be loaded to control load, remain to the reading that reads the both sides instrument after stablizing.Reading value-added mean value in both sides is the deformation values of this time test.Again by above-mentioned speed off-load to initial load, read again the initial reading of test specimen both sides instrument after stable.So carry out the deformation values that 3 loadings are held the lotus reading and calculated this time test.If the difference of twice of front and back deformation values is not more than 0.003mm, test last reading effective.Otherwise should repeat said process, until till the difference of the distortion of twice adjacent loading meets above-mentioned requirements.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly belong to those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement are within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. make simple and easy stress-strain test experimental provision by oneself for one kind, it is characterized in that: comprise pressure transducer (1), reaction beam (3), distribution beam (5), power transmission lifting jack (4) and support jack (6), reaction beam (3) is fixed on the top of distribution beam (5) by support (7), the bottom of distribution beam (5) arranges power transmission lifting jack (4), the both sides, top of distribution beam (5) arrange respectively support jack (6), test specimen (2) is placed on the middle part of distribution beam (5) upper surface, the pressure transducer (1) that is connected with stress-strain gage is set between the top of test specimen (2) and reaction beam (3).
2. the simple and easy stress-strain test experimental provision of self-control as claimed in claim 1, it is characterized in that: test specimen (2) is located between top board (8) and lower platen (9), top board (8) is arranged on the top of test specimen (2), contacts with pressure transducer (1); Lower platen (9) is arranged on the bottom of test specimen (2), contacts with the upper surface of distribution beam (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678875 CN202947727U (en) | 2012-12-10 | 2012-12-10 | Self-made simple stress strain test experiment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678875 CN202947727U (en) | 2012-12-10 | 2012-12-10 | Self-made simple stress strain test experiment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947727U true CN202947727U (en) | 2013-05-22 |
Family
ID=48423425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220678875 Expired - Lifetime CN202947727U (en) | 2012-12-10 | 2012-12-10 | Self-made simple stress strain test experiment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202947727U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616010A (en) * | 2013-12-03 | 2014-03-05 | 精工工业建筑***有限公司 | Warning device between flexible columns of structure workshop |
| CN108036998A (en) * | 2017-12-14 | 2018-05-15 | 西安航天化学动力厂 | It is a kind of to determine stress/determine strain detection testing device |
| CN111540257A (en) * | 2020-05-27 | 2020-08-14 | 大连理工大学 | Single-span beam structure demonstration experiment device with liftable support |
-
2012
- 2012-12-10 CN CN 201220678875 patent/CN202947727U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616010A (en) * | 2013-12-03 | 2014-03-05 | 精工工业建筑***有限公司 | Warning device between flexible columns of structure workshop |
| CN103616010B (en) * | 2013-12-03 | 2016-02-10 | 精工工业建筑***有限公司 | Prior-warning device between structure workshop flexible column |
| CN108036998A (en) * | 2017-12-14 | 2018-05-15 | 西安航天化学动力厂 | It is a kind of to determine stress/determine strain detection testing device |
| CN111540257A (en) * | 2020-05-27 | 2020-08-14 | 大连理工大学 | Single-span beam structure demonstration experiment device with liftable support |
| CN111540257B (en) * | 2020-05-27 | 2024-04-12 | 大连理工大学 | Single-span beam structure demonstration experiment device with liftable support |
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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: 20130522 |
|
| CX01 | Expiry of patent term |