CN205538436U - Fibre concrete bent toughness plectane method test device - Google Patents
Fibre concrete bent toughness plectane method test device Download PDFInfo
- Publication number
- CN205538436U CN205538436U CN201620113784.3U CN201620113784U CN205538436U CN 205538436 U CN205538436 U CN 205538436U CN 201620113784 U CN201620113784 U CN 201620113784U CN 205538436 U CN205538436 U CN 205538436U
- Authority
- CN
- China
- Prior art keywords
- center
- testing machine
- cushion cap
- plectane
- machine cushion
- 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 - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a fibre concrete bent toughness plectane method test device, solved the support that current test device exists unstable, install and use inconvenience, the reliability is poor, the accuracy haves much room for improvement problem. Technical scheme includes the testing machine cushion cap, the center of testing machine cushion cap sets up displacement sensor to displacement sensor is the centre of a circle, evenly sets up three support along the circumferencial direction, telescopic link tip and the contact of test piece bottom surface center are fixed in the center of testing machine cushion cap department to displacement sensor's bottom. The utility model discloses simple structure, easy and simple to handle, good reliability, connection are firm, can effectively solve centering problem and the deviation problem of tentation data in the experimental loading procedure.
Description
Technical field
This utility model relates to a kind of concrete test device, a kind of fiber coagulation
Soil bent toughness plectane method assay device.
Background technology
" fiber concrete test method standard " the 6.12.3 article regulation of CECS 13:2009
The test of fiber concrete bent toughness plectane method, wherein, for coordinate with pressure testing machine
Assay device includes testing machine cushion cap, is along the circumferential direction uniformly arranged three on testing machine cushion cap
Bearing, the centrally disposed displacement transducer of testing machine cushion cap.The structure of above-mentioned assay device exists
Problems with: bottom surface and the end face of (1) bearing are all abutted against with testing machine cushion cap and power transmission steel plate
The friction of contacting surface keeps stable, does not all have corresponding fixation, in test loading procedure,
The position of bearing easily occurs sliding even to topple over, it is difficult to ensure that the accuracy of test data；(2)
The bottom of displacement transducer contacts with test specimen, expansion link end and testing machine raft contact, displacement
Sensor is connected self by three anchorages and three bearings, and one end of three anchorages is with bearing altogether
Having three to have again three junction points between junction point, and displacement transducer, multiple junction points are not only
Assembling complexity, and the centering that rigging error superposition causes displacement transducer hardly results in guarantee；
In test loading procedure, displacement transducer moves down, and displacement transducer anchorage turns downwards along with test specimen
Dynamic, the support of bearing can be produced radial force, impact supports further stability and displacement pass
The center position of sensor, the verity of measured test data hardly results in guarantee.
Summary of the invention
The purpose of this utility model is to solve above-mentioned technical problem, it is provided that a kind of structure letter
Single, easy and simple to handle, good reliability, connection are firm, it is possible to effectively solve in test loading procedure
Centering problem and test data offset issue fiber concrete bent toughness plectane method examination
Experiment device.
Technical scheme includes testing machine cushion cap, the centrally disposed displacement sensing of described testing machine cushion cap
Device, with displacement transducer as the center of circle, is along the circumferential direction uniformly arranged three bearings, described displacement
The bottom of sensor is fixed at the bottom of the center of testing machine cushion cap, expansion link end and plectane test specimen
Face central contact.
Arranging power transmission steel plate on described bearing, described power transmission upper surface of steel plate center arranges and is placed with
The ball recess of ball pivot, and be provided for described center for the center of circle plectane test specimen is carried out right
The circumference indentation of middle location.
The bottom of described bearing is fixed on testing machine cushion cap through latch, and top is through latch and power transmission
Steel plate connects.
Beneficial effect:
(1) eliminate three anchorages of displacement transducer, by bottom displacement transducer down,
It is fixed on the center of testing machine cushion cap by latch, makes the expansion link end court of displacement transducer
Upper contact with test specimen bottom center, complete the simple the most effective of displacement transducer and fix, it is to avoid anchor
Installation complicated between tool and displacement transducer and bearing and rigging error, it is ensured that displacement transducer
Accurate centering；During test, expansion link directly obtains the displacement data of test specimen, displacement transducer
Itself is not moved, and does not has direct annexation with bearing, thus without impact seat
The stability put.
(2) the upper and lower bottom surface of bearing all by insert the most respectively with testing machine cushion cap and the power transmission of end face
Steel plate connects, it is possible to bearing and power transmission steel plate are effectively ensured and will not occur in test loading procedure
Sliding or topple over, improves reliability and the security and stability of test.
(3) when placing test specimen, when outward flange and the circumference indentation of power transmission upper surface of steel plate of test specimen
Represent time tangent that the position of test specimen is accurate, this ensure that the accurate centering of test specimen, it is thus possible to
Enough further ensure that the true of the result of the tests such as the load deflection curves, the energy absorption value that obtain
Property.
(4) this utility model simple in construction, easy to assembly, to displacement transducer, bearing and biography
Power steel plate positions reliably, can not only solve the accurate centering problem of displacement transducer,
And it is able to ensure that test specimen is under no restraint in process of the test, eliminate plectane test specimen owing to turning round
Then the additional deformation caused, provide strong guarantee for obtaining true and reliable test data.
Accompanying drawing explanation
Fig. 1 is this utility model top view.
Fig. 2 is power transmission steel plate enlarged diagram.
Fig. 3 is this utility model structural representation.
Wherein, 1 ball pivot, 2 power transmission steel plates, 2.1-ball recess, 2.2-circumference indentation,
3 latches, 4 bearings, 5 testing machine cushion caps, 6 circumference, 7 displacement transducers, 7.1-
Expansion link, 8-plectane test specimen.
Detailed description of the invention
Explanation that the utility model is further explained below in conjunction with the accompanying drawings:
See Fig. 1, Fig. 2 and Fig. 3, the centrally disposed displacement sensing of described testing machine cushion cap 5
Device 7, with displacement transducer 7 as the center of circle, is along the circumferential direction uniformly arranged three bearings 4, institute
Stating and arrange power transmission steel plate 2 on bearing 4, described power transmission steel plate 2 upper surface arranges and is placed with ball pivot 1
Ball recess 2.1 and circumference indentation 2.2.The bottom of described bearing 4 is connected to through latch 3
On testing machine cushion cap 5, top is sold slotting 3 and is connected with power transmission steel plate 2.Institute's displacement sensors
Slotting 3 centers being connected to testing machine cushion cap 5 are sold in the bottom of 7, expansion link 7.1 end with
Plectane test specimen 8 bottom center contacts.
When carrying out the test of fiber concrete bent toughness plectane method, with power transmission steel plate 2 upper surface
Circumference indentation 2.2 is with reference to placing plectane test specimen 8, when outward flange and the power transmission of plectane test specimen 8
When the circumference indentation 2.2 of steel plate 2 upper surface is tangent, it is the accurate location of test specimen, so protects
Demonstrate,proved the accurate centering of test specimen, test specimen in loading procedure not by any additional constraint, it is thus possible to
Enough further ensure that the true of the test datas such as the load deflection curves, the energy absorption value that obtain
Property.
Claims (3)
1. a fiber concrete bent toughness plectane method assay device, including testing machine cushion cap, the centrally disposed displacement transducer of described testing machine cushion cap, with displacement transducer as the center of circle, along the circumferential direction it is uniformly arranged three bearings, it is characterized in that, the bottom of institute's displacement sensors is fixed on the center of testing machine cushion cap, and the expansion link end of institute's displacement sensors contacts with plectane test specimen bottom center.
2. fiber concrete bent toughness plectane method assay device as claimed in claim 1, it is characterized in that, power transmission steel plate is set on described bearing, described power transmission upper surface of steel plate center arranges the ball recess being placed with ball pivot, and is provided for carrying out plectane test specimen the circumference indentation of centering location with described center for the center of circle.
3. fiber concrete bent toughness plectane method assay device as claimed in claim 2, it is characterised in that the bottom of described bearing is fixed on testing machine cushion cap through latch, and top is connected with power transmission steel plate through latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620113784.3U CN205538436U (en) | 2016-02-04 | 2016-02-04 | Fibre concrete bent toughness plectane method test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620113784.3U CN205538436U (en) | 2016-02-04 | 2016-02-04 | Fibre concrete bent toughness plectane method test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538436U true CN205538436U (en) | 2016-08-31 |
Family
ID=56776926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620113784.3U Expired - Fee Related CN205538436U (en) | 2016-02-04 | 2016-02-04 | Fibre concrete bent toughness plectane method test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858012A (en) * | 2021-04-01 | 2021-05-28 | 武汉轻工大学 | Test device of cushion cap under vertical pressure effect |
-
2016
- 2016-02-04 CN CN201620113784.3U patent/CN205538436U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858012A (en) * | 2021-04-01 | 2021-05-28 | 武汉轻工大学 | Test device of cushion cap under vertical pressure effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |