CN207408220U - A kind of multi-functional flexural strength experimental rig - Google Patents
A kind of multi-functional flexural strength experimental rig Download PDFInfo
- Publication number
- CN207408220U CN207408220U CN201721597641.5U CN201721597641U CN207408220U CN 207408220 U CN207408220 U CN 207408220U CN 201721597641 U CN201721597641 U CN 201721597641U CN 207408220 U CN207408220 U CN 207408220U
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- China
- Prior art keywords
- thread spindle
- hinged seat
- pin hole
- sliding block
- support base
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Abstract
The utility model discloses a kind of multi-functional flexural strength experimental rigs, and including support base and two load bearing units, the support base is equipped with connecting seat, and the support base is equipped with the first thread spindle and the second thread spindle；The load bearing unit includes slide, hinged seat and support club, the slide on the hinged seat with offering the first pin hole, the first axis pin is equipped in first pin hole, the support club is internally provided with fixing axle, the both ends of the fixing axle are equipped with sliding block, the junction of the sliding block and the hinged seat offers the first V-groove, ball is provided in first V-groove, the second V-groove is offered on the corresponding hinged seat, the sliding block on the hinged seat with offering the second pin hole.The device will be tested in four-point bending in half flexible jig and full flexible jig combine, realize the function of a tractor serves several purposes.
Description
Technical field
The utility model is related to a kind of multi-functional flexural strength experimental rigs.
Background technology
The limit that flexural strength is reflected when construction material unit area bears moment of flexure fractures stress, also known as bending strength,
Bending strength, breaking load etc. are an important mechanical performance indexs.
In flexural strength experiment, often tested using 3 points or four-point bending, in addition, in four-point bending test usually
Using two kinds of different fixtures, i.e. half flexible jig and full flexible jig, to adapt to that there is the sample of different flatness.It is however existing
Experimental provision is for various sample and experimental method with Preparation Method, is each equipped with corresponding experimental provision, half flexible jig
It is all single use, can not concentrate in together with full flexible jig, therefore cause instrument quantity very huge, occupy larger
Laboratory space.
In four-point bending test, half flexible jig adapts to the smooth sample Jing Guo well processed, is held in half flexible jig
Two backing roll sticks for carrying sample are set parallel to each other and can freely roll opposite to each other, the two upper pressures loaded to sample
Roller stick is set parallel to each other and can freely roll in opposite directions, while two upper pressure roller sticks are capable of the levelness of separately adjustable axis
To adapt to the surface of sample；
In four-point bending test, the flatness that full flexible jig adapts to sample is relatively poor, at the same be also adapted to by
The smooth sample of well processed, one of support club that sample is carried in full flexible jig are immovable and adjust but can roll
Dynamic, another support club can either move and the levelness of adjustment axis, can also roll；On two loaded to sample
Pressure roller stick can roll in opposite directions, and can independently adjust levelness to adapt to the surface of sample.
Utility model content
For above-mentioned technical deficiency, the purpose of this utility model is to provide a kind of multi-functional flexural strength experiment dress
It puts, solves the defects of existing half flexible jig and full flexible jig can not be applied in combination.
In order to solve the above technical problems, the utility model adopts the following technical solution：
The utility model provides a kind of multi-functional flexural strength experimental rig, including support base and can be slidably arranged in
Two load bearing units on the support base, the middle position of the support base are provided with connecting seat, and two carryings are single
Member is symmetrically distributed in the both sides of the connecting seat, is provided with to respectively drive two load bearing units on the support base
First thread spindle and the second thread spindle, first thread spindle and second thread spindle are symmetrically distributed in the two of the connecting seat
Side, first thread spindle are rotated coaxially with second thread spindle by the connecting seat, the screw thread of first thread spindle
Rotation direction is opposite with the thread rotary orientation of second thread spindle；The load bearing unit includes that the support base can be slidably arranged in
On slide, the hinged seat that can be rotatably arranged on the slide and can be movably arranged on the hinged seat
Club is supported, the hinged seat is rotatablely connected by articulated shaft and the slide, the axis of the articulated shaft and the supporting stick
The axis perpendicular of stick, the slide and the first pin hole that concentric setting is offered on the hinged seat, first pin
The first axis pin is provided in hole, the support club is internally provided with fixing axle, and the support club is set by bearing element
It puts in the fixing axle, the fixing axle is provided at both ends with square sliding block, the connection of the sliding block and the hinged seat
Place offers the first V-groove, and ball is provided in first V-groove, is offered on the corresponding hinged seat for the rolling
The second V-groove that pearl rolls offers the second pin hole on the sliding block and the hinged seat, when the sliding block be pushed against it is described
When hinged seat is close to the one side of the connecting seat, second pin hole on the sliding block is with being located on the hinged seat
Second pin hole is concentric, and the second axis pin is provided in second pin hole.
Preferably, end set of first thread spindle away from second thread spindle is useful for driving first spiral shell
The swing arm that line axis rotates.
Preferably, rotated coaxially between first thread spindle and second thread spindle by shaft coupling.
The beneficial effects of the utility model are：The device will be tested in four-point bending in half flexible jig and complete adjustable
Fixture synthesis together, realizes the function of a tractor serves several purposes, while the setting of the first thread spindle and the second thread spindle realizes two
The synchronous adjustment of distance between a load bearing unit can adapt to different size of sample, while the first thread spindle and second
The setting of thread spindle substantially increases the stability of degree of regulation and load bearing unit；When needing using half flexible jig function,
First axis pin need to be only inserted into the first pin hole to the limitation that hinged seat can be realized, so that the levelness of support club is realized
It is fixed, while the second axis pin is extracted into the second pin hole, cancel the limitation to sliding block so that supporting club can move opposite to each other；
When needing using full flexible jig function, by the first axis pin of one of load bearing unit and the on the basis of half flexible jig
Two axis pins are extracted, and cancel the limitation to the support club on the load bearing unit, can carry out water according to the flatness of sample
The adjusting of Pingdu, while can freely roll；In addition the device can also be applied in three point bending test, greatly improve the device
Adaptability, effectively reduce instrument quantity and cost.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of stereochemical structure signal for multi-functional flexural strength experimental rig that the utility model embodiment provides
Figure；
Fig. 2 is a kind of front view for multi-functional flexural strength experimental rig that the utility model embodiment provides；
Fig. 3 is the structure diagram of load bearing unit；
Fig. 4 be Fig. 2 in A-A to sectional view；
Fig. 5 is the enlarged drawing in B portions in Fig. 4.
Reference sign：1- support bases, the first thread spindles of 11-, 111- swing arms, the second thread spindles of 12-, 13- connecting seats,
2- load bearing units, 21- slides, 211- articulated shafts, the first axis pins of 212-, 22- hinged seats, the second axis pins of 221-, 23- backing rolls
Stick, 231- sliding blocks, 2311- balls, 232- fixing axles, 2321- bearings.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
As shown in Figures 1 to 5, a kind of multi-functional flexural strength experimental rig can be set including support base 1 and slidably
Two load bearing units 2 on support base 1, the middle position of support base 1 are provided with connecting seat 13, and two load bearing units 2 are right
Claim the both sides for being distributed in connecting seat 13, to be provided with to respectively drive the first thread spindle 11 of two load bearing units 2 on support base 1
With the second thread spindle 12, the first thread spindle 11 and the second thread spindle 12 are symmetrically distributed in the both sides of connecting seat 13, the first thread spindle
11 are rotated coaxially with the second thread spindle 12 by connecting seat 13, the spiral shell of the thread rotary orientation of the first thread spindle 11 and the second thread spindle 12
Line is oppositely oriented；Load bearing unit 2 includes the slide 21 that can be slidably arranged on support base 1, can be rotatably arranged at cunning
Hinged seat 22 and the support club 23 that can be movably arranged on hinged seat 22 on seat 21, hinged seat 22 pass through articulated shaft
211 are rotatablely connected with slide 21, the axis perpendicular of the axis and support club 23 of articulated shaft 211, slide 21 and hinged seat 22
On offer the first pin hole of concentric setting, the first axis pin 212 is provided in the first pin hole, the inside of support club 23 is set
Fixing axle 232 is equipped with, support club 23 is arranged on by the rolling of bearing 2321 in fixing axle 232, and the both ends of fixing axle 232 are set
There is square sliding block 231, sliding block 231 and the junction of hinged seat 22 offer the first V-groove, rolling are provided in the first V-groove
Pearl 2311, offers the second V-groove rolled for ball 2311 on corresponding hinged seat 22, sliding block 231 on hinged seat 22
The second pin hole is offered, when sliding block 231 is pushed against hinged seat 22 close to the one side of connecting seat 13, on sliding block 231
Two pin holes and the second pin hole on hinged seat 22 are concentric, and the second axis pin 221 is provided in the second pin hole.
End set of first thread spindle 11 away from the second thread spindle 12 is useful for the rotation that the first thread spindle 11 of driving rotates
Bar 111.
It is rotated coaxially between first thread spindle 11 and the second thread spindle 12 by shaft coupling.
In addition the experimental rig is also used as the device loaded in four-point bending test is carried out to sample, that is, adopts
With two sets of experimental rigs, sample is placed on one of them, another loads sample, realizes four-point bending examination
It tests；In test, wherein test battery device carries sample, and on universal test machine platform, another set of experimental rig adds
Sample is carried, is pressurizeed on the loading system of universal testing machine to sample.
During use：
When four-point bending is needed to test half flexible jig function, by the first axis pin in the experimental rig for carrying sample
In 212 the first pin holes of insertion, the limitation to hinged seat 22 is realized, so that the levelness of support club 23 is realized and fixed, together
When the second axis pin 221 extracted into the second pin hole, cancel the limitation to sliding block 231 so that two supporting clubs 23 can be mutually unlucky
It is dynamic；The first axis pin 212 and the second axis pin 221 in the experimental rig that sample will be loaded are extracted, and cancel the limit to supporting club 23
System so that can freely be rolled in opposite directions for two of loading support clubs 23, and be capable of the levelness of adjustment axis with
Adapt to the surface of sample；
It is when four-point bending is needed to test full flexible jig function, a carrying in the experimental rig for carrying sample is single
The first axis pin 212 and the second axis pin 221 in member 2 are extracted, the first axis pin 212 and the second axis pin in another load bearing unit 2
221 keep insert state, realize the limitation of one of support club 23, another support club 23 can freely roll simultaneously
And it is capable of the levelness of adjustment axis to adapt to the surface of sample；By 212 He of the first axis pin in the experimental rig for loading sample
Second axis pin 221 is extracted, and cancels the limitation to supporting club 23 so that can be free for two support clubs 23 of loading
It is opposite to roll, and it is capable of the levelness of adjustment axis to adapt to the surface of sample.
The device in the utility model will be tested in four-point bending in half flexible jig and full flexible jig synthesis exist
Together, the function of a tractor serves several purposes is realized, while the setting of the first thread spindle and the second thread spindle realizes two load bearing units
Between distance synchronous adjustment, different size of sample can be adapted to, while the first thread spindle and the second thread spindle are set
Put the stability for substantially increasing degree of regulation and load bearing unit；It, only need to be by first when needing using half flexible jig function
Axis pin is inserted into the first pin hole the limitation that hinged seat can be realized, so that the levelness of support club is realized and fixed, simultaneously
Second axis pin is extracted into the second pin hole, cancels the limitation to sliding block so that supporting club can move opposite to each other；It is needing using complete
During flexible jig function, the first axis pin of one of load bearing unit and the second axis pin are pulled out on the basis of half flexible jig
Go out, cancel the limitation to the support club on the load bearing unit, the tune of levelness can be carried out according to the flatness of sample
Section, while can freely roll；In addition the device can also be applied in three point bending test, greatly improve the adaptation of the device
Property, effectively reduce instrument quantity and cost.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
New spirit and scope.If in this way, these modifications and variations of the utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these modification and variations.
Claims (3)
1. a kind of multi-functional flexural strength experimental rig, which is characterized in that including support base and can be slidably arranged in described
Two load bearing units on support base, the middle position of the support base are provided with connecting seat, two load bearing units pair
Claim the both sides for being distributed in the connecting seat, to be provided with to respectively drive the first of two load bearing units on the support base
Thread spindle and the second thread spindle, first thread spindle and second thread spindle are symmetrically distributed in the both sides of the connecting seat,
First thread spindle is rotated coaxially with second thread spindle by the connecting seat, the thread rotary orientation of first thread spindle
It is opposite with the thread rotary orientation of second thread spindle；The load bearing unit includes to be slidably arranged on the support base
Slide, the hinged seat that can be rotatably arranged on the slide and the support that can be movably arranged on the hinged seat
Club, the hinged seat are rotatablely connected by articulated shaft and the slide, the axis of the articulated shaft and the support club
Axis perpendicular, offers the first pin hole of concentric setting on the slide and the hinged seat, in first pin hole
The first axis pin is provided with, the support club is internally provided with fixing axle, and the support club is arranged on by bearing element
In the fixing axle, the fixing axle is provided at both ends with square sliding block, and the junction of the sliding block and the hinged seat is opened
Equipped with the first V-groove, ball is provided in first V-groove, offers on the corresponding hinged seat and is rolled for the ball
The second dynamic V-groove offers the second pin hole on the sliding block and the hinged seat, when the sliding block be pushed against it is described hinged
When seating against the one side of the nearly connecting seat, second pin hole on the sliding block on the hinged seat described in
Second pin hole is concentric, and the second axis pin is provided in second pin hole.
2. a kind of multi-functional flexural strength experimental rig as described in claim 1, which is characterized in that first thread spindle is remote
End set from second thread spindle is useful for the swing arm that first thread spindle is driven to rotate.
3. a kind of multi-functional flexural strength experimental rig as described in claim 1, which is characterized in that first thread spindle with
It is rotated coaxially between second thread spindle by shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721597641.5U CN207408220U (en) | 2017-11-24 | 2017-11-24 | A kind of multi-functional flexural strength experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721597641.5U CN207408220U (en) | 2017-11-24 | 2017-11-24 | A kind of multi-functional flexural strength experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207408220U true CN207408220U (en) | 2018-05-25 |
Family
ID=62317194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721597641.5U Expired - Fee Related CN207408220U (en) | 2017-11-24 | 2017-11-24 | A kind of multi-functional flexural strength experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207408220U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655331A (en) * | 2019-01-17 | 2019-04-19 | 合肥工业大学 | A kind of anti-folding electromagnetism self-healing experiment of asphalt does not demould laboratory holder |
| CN110146380A (en) * | 2019-06-14 | 2019-08-20 | 林克慧 | A kind of cement briquette resistance to compression, flexural strength detect automatic acquisition equipment |
-
2017
- 2017-11-24 CN CN201721597641.5U patent/CN207408220U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655331A (en) * | 2019-01-17 | 2019-04-19 | 合肥工业大学 | A kind of anti-folding electromagnetism self-healing experiment of asphalt does not demould laboratory holder |
| CN109655331B (en) * | 2019-01-17 | 2021-04-27 | 合肥工业大学 | Anti-bending electromagnetic self-healing experiment non-demolding experiment clamp for asphalt mixture |
| CN110146380A (en) * | 2019-06-14 | 2019-08-20 | 林克慧 | A kind of cement briquette resistance to compression, flexural strength detect automatic acquisition equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20181124 |