CN207764051U - A kind of three-point bending device of test concrete fracture performance - Google Patents
A kind of three-point bending device of test concrete fracture performance Download PDFInfo
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- CN207764051U CN207764051U CN201721342301.8U CN201721342301U CN207764051U CN 207764051 U CN207764051 U CN 207764051U CN 201721342301 U CN201721342301 U CN 201721342301U CN 207764051 U CN207764051 U CN 207764051U
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- fixedly connected
- kelly
- pedestal
- mounting groove
- point bending
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- 238000013001 point bending Methods 0.000 title claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of three-point bending devices of test concrete fracture performance, including pedestal and support column, it is fixedly connected at the top of the support column and pedestal, the top of the pedestal is equipped with mounting groove, it is rotatably connected to threaded rod in the mounting groove, one end of the threaded rod runs through the inner wall of mounting groove and is fixedly connected with handle, one end of the handle is equipped with sliding mouth, kelly is slidably connected in the cunning mouth, the both ends of the kelly extend through the both ends of sliding mouth and extend outwardly, around equipped with card slot corresponding with kelly on the outer wall of the pedestal, the kelly is fixedly connected with fixture block close to one end of pedestal, the one end of the kelly far from fixture block is fixedly connected with limited block, the threaded rod is located at the socket of the threaded one end in mounting groove, and there are two bearing blocks.The utility model allows device to be adjusted accordingly according to the size of concrete by the setting of many places transmission mechanism, to improve the device scope of application.
Description
Technical field
The utility model is related to concrete fracture technical field of measurement and test more particularly to a kind of test concrete fracture performances
Three-point bending device.
Background technology
As most popular construction material in the world today, concrete is present not only on common building object, equally
Building in complex work environment is also using concrete, such as dam.The pressure vessels such as drilling platforms and nuclear power station, this makes
It obtains people and not only only focuses on the basic performances such as tension and the compression strength of concrete, fracture characteristics and destruction basis mechanism are also increasingly subject to
The attention of researcher.But existing Three Point Bending Test of Concrete Specimen apparatus structure is relatively simple, and three are being carried out to concrete
The mechanism that point experiment can not accordingly be adjusted according to the size of concrete block has one to influence the scope of application of device
Fixed defective.
Utility model content
Purpose of the utility model is to solve Three Point Bending Test of Concrete Specimen apparatus structure in the prior art is more simple
It is single, the problem of 3 points of experiments can not carry out corresponding regulating mechanism according to the size of concrete block is being carried out to concrete, and propose
A kind of test concrete fracture performance three-point bending device.
To achieve the goals above, the utility model uses following technical solution：
A kind of three-point bending device of test concrete fracture performance, including pedestal and support column, the support column and base
The top of seat is fixedly connected, and the top of the pedestal is equipped with mounting groove, and threaded rod, the spiral shell are rotatably connected in the mounting groove
One end of rasp bar runs through the inner wall of mounting groove and is fixedly connected with handle, and one end of the handle, which is equipped with, slides mouth, in the cunning mouth
Kelly is slidably connected, the both ends of the kelly extend through the both ends of sliding mouth and extend outwardly, ring on the outer wall of the pedestal
It is arranged with card slot corresponding with kelly, the kelly is fixedly connected with fixture block close to one end of pedestal, and the kelly is far from fixture block
One end be fixedly connected with limited block, the threaded rod is located at the socket of the threaded one end in mounting groove, and there are two bearing blocks, described
Hanging rod is fixedly connected at the top of support column, bottom of the hanging rod far from support column one end is fixedly connected with hydraulic cylinder, institute
The output end for stating hydraulic cylinder is fixedly connected with push rod, and the push rod is connected to supporting sleeve close to one end fixing sleeve of hydraulic cylinder,
The support column is fixedly connected with guide rod close to one end of supporting sleeve, two cunnings being provided symmetrically on the outer wall of the guide rod
Slot slidably connects slide bar in the sliding slot, and sliding sleeve is connected to L-type connecting rod on the slide bar, and first is arranged on the slide bar
The both ends of spring, first spring are fixedly connected with the inner wall of L-type connecting rod and sliding slot respectively, and the L-type connecting rod is far from slide bar
One end through sliding slot notch and be fixedly connected with supporting sleeve, the one end of the push rod far from hydraulic cylinder through guide rod and to
Lower extension, one end that the push rod extends are equipped with extrusion head.
Preferably, the interior basal sliding of the mounting groove is connected with multiple balls, the edge and bearing block phase of the ball
Contact.
Preferably, second spring is arranged on the kelly, the both ends of the second spring are solid with fixture block and handle respectively
Fixed connection.
Preferably, the top of the bearing block is fixedly connected with cushion block by damping shock absorber.
Preferably, it is threaded connection between the extrusion head and push rod.
Preferably, the bottom of the pedestal is fixedly connected with multiple fixed blocks, and the fixed block is equipped with fixing port.
In the utility model, user when in use, first passes through fixed block and fixes device, then according to concrete block
Size, first outward extraction kelly, then swing handle drive threaded rod rotation, to drive two bearing blocks move towards,
Ball can reduce the frictional force between bearing block and mounting groove inner wall simultaneously, then concrete block is placed on to the top of bearing block
Portion, while damping shock absorber and cushion block can play a certain role of shock absorption and buffering concrete block, then open hydraulic cylinder
Push rod is driven to move down, to drive extrusion head to test concrete block, while L-type connecting rod can effectively prevent push rod
Shaking, the first spring can play the role of L-type connecting rod certain resilient support.The utility model passes through many places transmission mechanism
Setting, so that device is adjusted accordingly according to the size of concrete, to improve the device scope of application.
Description of the drawings
Fig. 1 be the utility model proposes a kind of test concrete fracture performance three-point bending device structural representation
Figure；
Fig. 2 be the utility model proposes a kind of test concrete fracture performance three-point bending device hydraulic cylinder at
Side structure schematic view；
Fig. 3 is structural schematic diagram at the A of Fig. 1；
Fig. 4 is structural schematic diagram at the B of Fig. 1.
In figure：1 pedestal, 2 support columns, 3 threaded rods, 4 handles, 5 kellies, 6 fixture blocks, 7 limited blocks, 8 bearing blocks, 9 hanging rods, 10
Hydraulic cylinder, 11 push rods, 12 supporting sleeves, 13 guide rods, 14 slide bars, 15 L-type connecting rods, 16 first springs, 17 extrusion heads, 18 balls,
19 second springs, 20 damping shock absorbers, 21 cushion blocks, 22 fixed blocks.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-4, a kind of three-point bending device of test concrete fracture performance, including pedestal 1 and support column 2, branch
Dagger 2 is fixedly connected with the top of pedestal 1, and the top of pedestal 1 is equipped with mounting groove, is rotatably connected to threaded rod 3 in mounting groove, uses
In adjusting the distance between two bearing blocks 8, one end of threaded rod 3 runs through the inner wall of mounting groove and is fixedly connected with handle 4, uses
It is equipped with sliding mouth in one end of rotation threaded rod 3, handle 4, kelly 5 is slidably connected in sliding mouth, for fixing handle 4, kelly 5
Both ends extend through the both ends of sliding mouth and extend outwardly, around equipped with card slot corresponding with kelly 5, kelly 5 on the outer wall of pedestal 1
It is fixedly connected with fixture block 6 close to one end of pedestal 1, prevents kelly 5 from falling off out of sliding mouth, the one end of kelly 5 far from fixture block 6 is fixed
It is connected with limited block 7, prevents kelly 5 from falling off out of sliding mouth, threaded rod 3 is located at the socket of the threaded one end in mounting groove, and there are two hold
Pouring weight 8 is used to support concrete block, and the top of support column 2 is fixedly connected with hanging rod 9, for hydraulic cylinder 10, hanging rod 9 to be arranged
Bottom far from 2 one end of support column is fixedly connected with hydraulic cylinder 10, for driving push rod 11 to move, the output of hydraulic cylinder 10
End is fixedly connected with push rod 11, and for driving extrusion head 17 to move, push rod 11 is connected to close to one end fixing sleeve of hydraulic cylinder 10
Supporting sleeve 12, for L-type connecting rod 15 to be arranged, support column 2 is fixedly connected with guide rod 13 close to one end of supporting sleeve 12, is used to support
Push rod 11, two sliding slots being provided symmetrically on the outer wall of guide rod 13 slidably connect slide bar 14 in sliding slot, are used to support L
Type connecting rod 15, sliding sleeve is connected to L-type connecting rod 15 on slide bar 14, and anti-throw-out lever 11 shakes, and the first spring 16 is arranged on slide bar 14,
Play certain resilient support to L-type connecting rod 15, the inner wall of the both ends of the first spring 16 respectively with L-type connecting rod 15 and sliding slot is fixed
Connection, the one end of L-type connecting rod 15 far from slide bar 14 are run through the notch of sliding slot and are fixedly connected with supporting sleeve 12, and push rod 11 is far from liquid
One end of compressing cylinder 10 is through guide rod 13 and extends downwardly, and one end that push rod 11 extends is equipped with extrusion head 17, for squeezing coagulation
Soil block.
In the utility model, the interior basal sliding of mounting groove is connected with multiple balls 18, the edge and bearing block 8 of ball 18
It is in contact, reduces the frictional force between bearing block 8 and mounting groove inner wall, second spring 19, second spring 19 are arranged on kelly 5
Both ends be fixedly connected respectively with fixture block 6 and handle 4, make kelly 5 that can block handle 4 with automatic rebounding, the top of bearing block 8 is logical
Overdamp damper 20 is fixedly connected with cushion block 21, is played a certain role of shock absorption and buffering to concrete, extrusion head 17 and push rod
To be threadedly coupled between 11, it is convenient for changing extrusion head 17, the bottom of pedestal 1 is fixedly connected with multiple fixed blocks 22, fixed block 22
It is equipped with fixing port, facilitates fixing device.
It in the utility model, first passes through fixed block 22 and fixes device, then according to the size of concrete block, first outward
Extract kelly 5 out, then swing handle 4 drives threaded rod 3 to rotate, to drive two bearing blocks 8 to move towards, while ball 18
The frictional force between bearing block 8 and mounting groove inner wall can be reduced, then concrete block is placed on to the top of bearing block 8, together
When damping shock absorber 20 and cushion block 21 concrete block can be played a certain role of shock absorption and buffering, then open hydraulic cylinder 10
Push rod 11 is driven to move down, to drive extrusion head 17 to test concrete block, while L-type connecting rod 15 can effectively be prevented
The shaking of throw-out lever 11, the first spring 16 can play the role of L-type connecting rod 15 certain resilient support.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of three-point bending device of test concrete fracture performance, including pedestal（1）And support column（2）, which is characterized in that
The support column（2）And pedestal（1）Top be fixedly connected, the pedestal（1）Top be equipped with mounting groove, in the mounting groove
It is rotatably connected to threaded rod（3）, the threaded rod（3）One end through mounting groove inner wall and be fixedly connected with handle（4）, institute
State handle（4）One end be equipped with sliding mouth, slidably connect kelly in the cunning mouth（5）, the kelly（5）Both ends extend through
The both ends of sliding mouth simultaneously extend outwardly, the pedestal（1）Outer wall on around being equipped with and kelly（5）Corresponding card slot, the kelly
（5）Close to pedestal（1）One end be fixedly connected with fixture block（6）, the kelly（5）Far from fixture block（6）One end be fixedly connected with
Limited block（7）, the threaded rod（3）There are two bearing blocks for threaded one end socket in mounting groove（8）, the support column
（2）Top be fixedly connected with hanging rod（9）, the hanging rod（9）Far from support column（2）The bottom of one end is fixedly connected with hydraulic oil
Cylinder（10）, the hydraulic cylinder（10）Output end be fixedly connected with push rod（11）, the push rod（11）Close to hydraulic cylinder
（10）One end fixing sleeve be connected to supporting sleeve（12）, the support column（2）Close to supporting sleeve（12）One end be fixedly connected with and lead
Bar（13）, the guide rod（13）Outer wall on two sliding slots being provided symmetrically, slidably connect slide bar in the sliding slot
（14）, the slide bar（14）Upper sliding sleeve is connected to L-type connecting rod（15）, the slide bar（14）On be arranged with the first spring（16）, institute
State the first spring（16）Both ends respectively with L-type connecting rod（15）It is fixedly connected with the inner wall of sliding slot, the L-type connecting rod（15）It is separate
Slide bar（14）One end through sliding slot notch and and supporting sleeve（12）It is fixedly connected, the push rod（11）Far from hydraulic cylinder
（10）One end run through guide rod（13）And it extends downwardly, the push rod（11）One end of extension is equipped with extrusion head（17）.
2. a kind of three-point bending device of test concrete fracture performance according to claim 1, which is characterized in that described
The interior basal sliding of mounting groove is connected with multiple balls（18）, the ball（18）Edge and bearing block（8）It is in contact.
3. a kind of three-point bending device of test concrete fracture performance according to claim 1, which is characterized in that described
Kelly（5）On be arranged with second spring（19）, the second spring（19）Both ends respectively with fixture block（6）And handle（4）It is fixed
Connection.
4. a kind of three-point bending device of test concrete fracture performance according to claim 1, which is characterized in that described
Bearing block（8）Top pass through damping shock absorber（20）It is fixedly connected with cushion block（21）.
5. a kind of three-point bending device of test concrete fracture performance according to claim 1, which is characterized in that described
Extrusion head（17）And push rod（11）Between for be threadedly coupled.
6. a kind of three-point bending device of test concrete fracture performance according to claim 1, which is characterized in that described
Pedestal（1）Bottom be fixedly connected with multiple fixed blocks（22）, the fixed block（22）It is equipped with fixing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721342301.8U CN207764051U (en) | 2017-10-18 | 2017-10-18 | A kind of three-point bending device of test concrete fracture performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721342301.8U CN207764051U (en) | 2017-10-18 | 2017-10-18 | A kind of three-point bending device of test concrete fracture performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207764051U true CN207764051U (en) | 2018-08-24 |
Family
ID=63178710
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721342301.8U Expired - Fee Related CN207764051U (en) | 2017-10-18 | 2017-10-18 | A kind of three-point bending device of test concrete fracture performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207764051U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682685A (en) * | 2019-01-07 | 2019-04-26 | 上海建工集团股份有限公司 | Measure the device and method of quasi-brittle material tensile strength |
| CN110618041A (en) * | 2019-10-30 | 2019-12-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Bending integrated testing machine |
| CN113776958A (en) * | 2021-09-18 | 2021-12-10 | 中车株洲电力机车有限公司 | Roller type bending device for bending test |
-
2017
- 2017-10-18 CN CN201721342301.8U patent/CN207764051U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682685A (en) * | 2019-01-07 | 2019-04-26 | 上海建工集团股份有限公司 | Measure the device and method of quasi-brittle material tensile strength |
| CN110618041A (en) * | 2019-10-30 | 2019-12-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Bending integrated testing machine |
| CN110618041B (en) * | 2019-10-30 | 2022-05-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Bending integrated testing machine |
| CN113776958A (en) * | 2021-09-18 | 2021-12-10 | 中车株洲电力机车有限公司 | Roller type bending device for bending test |
| CN113776958B (en) * | 2021-09-18 | 2024-02-06 | 中车株洲电力机车有限公司 | Roller bending device for bending test |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20181018 |
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| CF01 | Termination of patent right due to non-payment of annual fee |