CN205506564U - Concrete creep loading device - Google Patents
Concrete creep loading device Download PDFInfo
- Publication number
- CN205506564U CN205506564U CN201620336047.XU CN201620336047U CN205506564U CN 205506564 U CN205506564 U CN 205506564U CN 201620336047 U CN201620336047 U CN 201620336047U CN 205506564 U CN205506564 U CN 205506564U
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- CN
- China
- Prior art keywords
- fine setting
- screw rod
- gripper shoe
- setting sleeve
- concrete
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Abstract
The utility model discloses a concrete creep loading device, including the test jig, set up backup pad in the test jig, set up in be used for holding soaking the container, applying the load mechanism of vertical downward pressure and set up the concrete sample and apply the upwards pressure fine -tuning of holding power in the backup pad below to this backup pad of concrete sample in the backup pad, load mechanism include through threaded connection in the test jig can carry out worm drive's loading screw rod, pressure fine -tuning is including setting up in removing and lock high a plurality of fine setting sleeves and fine setting sleeve one -to -one setting and a plurality of springs of elastic support between corresponding fine setting sleeve and backup pad below the backup pad along vertical direction, loading screw rod lower extreme is equipped with the loading piece, the load piece is connected in the load screw rod around the axis rotation of load screw rod through a thrust bearing.
Description
Technical field
The present invention relates to testing concrete performance instrument field, be specifically related to a kind of concrete creep charger.
Background technology
Concrete creep is that xoncrete structure occurs that under the effect of continuing load xoncrete structure deforms in time
The phenomenon constantly increased.Creep and cause the loss of prestress of prestressed reinforced concrete construction or increase long-span beams
Amount of deflection or cause (surpassing) high building structure to produce excessive vertical differential deformation.And in the prior art,
There are two kinds of phenomenons, one is to ensure that test specimen pressure experienced in process of the test is the most invariable
, it is impossible to the real force-bearing situation of xoncrete structure in reflection building structure, can not be mixed close to simulating
The force-bearing situation of Xtah Crude Clay structure；Another kind is the load that test specimen concrete sample in process of the test can be made to be subject to
Lotus is difficult to finely tune so that test and debugging process is the most loaded down with trivial details, affects testing efficiency.
Therefore, for solving problem above, need the one can be right while xoncrete structure is crept
The concrete creep instrument that pressure size is adjusted so that the long-term behaviour of its measured concrete and durable
Property the most accurate, simultaneously concrete sample pressure experienced can be carried out trace adjustment, to reach accurate
Design load, improves testing efficiency.
Summary of the invention
In view of this, it is an object of the invention to overcome defect of the prior art, it is provided that one can be at concrete
The concrete creep instrument that pressure size can be adjusted while creeping by structure so that measured by it
The long-term behaviour of concrete and durability the most accurate, concrete sample pressure experienced can be entered simultaneously
Row trace adjusts, and to reach accurate design load, improves testing efficiency.
The concrete creep charger of the present invention, the gripper shoe including testing jig, being arranged in testing jig,
It is arranged in described gripper shoe the soaking container for accommodating concrete sample, concrete sample is applied vertically
The load maintainer of downward pressure and be arranged at the pressure that below gripper shoe, this gripper shoe is applied upwards support force
Micro-adjusting mechanism；Described load maintainer includes being threadingly attached to described testing jig and carrying out worm drive
Load screw rod；Described pressure micro-adjusting mechanism includes being arranged at below gripper shoe and can vertically move and lock
Multiple fine setting sleeves of fixed height and arrange to fine setting sleeve one_to_one corresponding and flexibly support and finely tune set in corresponding
Multiple springs between cylinder and gripper shoe；Described loading screw rod lower end is provided with loading blocks；Described loading blocks is passed through
First thrust bearing is rotationally connected with loading screw rod around the axis loading screw rod.
Further, described testing jig includes top board, base plate and the column being fixed between described top board and base plate,
Described top board is fixed with and loads the thread bush that screw rod matches, and described loading screw tip is provided with rotation hands
Handle.
Further, described base plate being fixed with guide spiro rod, described gripper shoe is provided with slides with guide spiro rod
The via coordinated, the endoporus of described fine setting sleeve is provided with screw thread and is coordinated with guide spiro rod by screw thread；Wherein
One fine setting sleeve be provided with turret head and this fine setting sleeve and other each fine setting sleeve between pass through chain
Being in transmission connection, on each fine setting sleeve, corresponding corresponding chain is fixed with sprocket wheel.
Further, described guide spiro rod is arranged with fine setting sleeve one_to_one corresponding；Described fine setting sleeve end face and phase
Answering and be provided with the second thrust bearing between spring, described second thrust bearing and spring are all set in and guide spiral shell accordingly
Outside bar.
Further, it is provided with pressure transducer between described soaking container and gripper shoe.
The invention has the beneficial effects as follows: the concrete creep charger of the present invention can make test specimen more permanent
Test under fixed pressure, thus the numerical value measured by ensureing is more accurate, simultaneously micro-by force pressure
Regulating mechanism realizes being carried in the control accurate of load pressure on test specimen, thus enables the invention to according to essence in time
Adjust the position of lower platen accurately, to reach accurate design load, finally make test specimen to carry out at constant pressure
Performance test.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention；Carry as it can be seen, the concrete creep in the present embodiment adds
Put, the gripper shoe 2 that including testing jig, is arranged in testing jig, be arranged in described gripper shoe 2 for holding
Receive concrete sample 4 soaking container 6, concrete sample 4 is applied the load maintainer of pressure straight down
And it is arranged at the pressure micro-adjusting mechanism that below gripper shoe 2, this gripper shoe 2 is applied upwards support force；Described
Load maintainer includes being threadingly attached to described testing jig and carrying out the loading screw rod 8 of worm drive；Institute
State pressure micro-adjusting mechanism include being arranged at below gripper shoe 2 and can vertically move and lock height many
Individual fine setting sleeve 5 and arranges to fine setting sleeve 5 one_to_one corresponding and flexibly supports in corresponding finely tune sleeve 5 and
Multiple springs 3 between gripper shoe, described loading screw rod 8 lower end is provided with loading blocks 14；Described loading blocks 14
It is rotationally connected with loading screw rod 8 around the axis loading screw rod by the first thrust bearing 12；Make test specimen more
Test under constant pressure, thus the numerical value measured by ensureing is more accurate, is finely tuned by pressure simultaneously
Mechanism realizes being carried in the control accurate of load pressure on test specimen, finally makes test specimen can carry out performance at constant pressure
Test, loading screw rod 8 lower end has loading blocks 14 by the first thrust bearing 12 connection, makes loading screw rod lead to
Cross loading blocks 14 to be pressed on concrete sample, load and do not occur between loading blocks 14 and test specimen when screw rod rotates
Relatively rotate, be substantially reduced abrasion and reduce the rotary resistance loading screw rod simultaneously.
In the present embodiment, described testing jig includes top board 10, base plate and is fixed on described top board 10 and base plate
Between column 11, described top board 10 is fixed with and loads the thread bush 7 that screw rod 8 matches, described in add
Carrying screw rod 8 top and be provided with rotary handle 9, operating personnel rotates so that loading by driving rotary handle 9
Screw rod 8 rotates, and carries out worm drive between screw rod and thread bush 7, so that loading screw rod 8 straight down
Motion makes its lower end load concrete event.
In the present embodiment, described base plate being fixed with guide spiro rod 1, described gripper shoe 2 is provided with and guides
The via that screw rod 1 is slidably matched, the endoporus of described fine setting sleeve 5 is provided with screw thread and by screw thread and guiding spiral shell
Bar 1 coordinates, one of them fine setting sleeve 5 be provided with turret head 15 and this fine setting sleeve 5 with other each
Being in transmission connection by chain 16 between fine setting sleeve 5, on each fine setting sleeve 5, corresponding corresponding chain 16 is fixed
It is provided with sprocket wheel；Spanner can be used to rotate the fine setting sleeve 5 with turret head 15, and then carried by chain 16
Other fine setting sleeve 5 synchronous axial system dynamic, it is achieved each adjustment finely tuning sleeve 5 height and position, utilize screw thread
Self-locking property realizes the locking of height, thus changes the decrement of spring 3, to change it to gripper shoe 2
Support force, the pressure of concrete event is finely adjusted by final realization.
In the present embodiment, described guide spiro rod is arranged with fine setting sleeve 5 one_to_one corresponding；Described fine setting sleeve 5
Being provided with the second thrust bearing 13 between end face and respective springs, described second thrust bearing 13 and spring all overlap
It is loaded on outside corresponding guide spiro rod；Avoid finely tuning between sleeve 5 and spring and rub, reduce micro-simultaneously
Adjust the rotary resistance of sleeve 5, improve stability and the service life of whole plant running.
In the present embodiment, between described soaking container 6 and gripper shoe 2, it is provided with pressure transducer.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (5)
1. a concrete creep charger, it is characterised in that: include testing jig, be arranged in testing jig
Gripper shoe, be arranged in described gripper shoe the soaking container for accommodating concrete sample, to concrete try
Part applies the load maintainer of pressure straight down and is arranged at below gripper shoe and applies upwards to prop up to this gripper shoe
The pressure micro-adjusting mechanism of support force；Described load maintainer includes being threadingly attached to described testing jig and carrying out
The loading screw rod of worm drive；Described pressure micro-adjusting mechanism includes being arranged at below gripper shoe and energy is along vertically side
To mobile and multiple fine setting sleeves of lock height and with fine setting sleeve one_to_one corresponding arrange and flexibly support in
Multiple springs between corresponding fine setting sleeve and gripper shoe；Described loading screw rod lower end is provided with loading blocks；Described
Loading blocks is rotationally connected with loading screw rod by the first thrust bearing around the axis loading screw rod.
Concrete creep charger the most according to claim 1, it is characterised in that: described testing jig
Including top board, base plate and the column being fixed between described top board and base plate, described top board is fixed with and adds
Carrying the thread bush that screw rod matches, described loading screw tip is provided with rotary handle.
Concrete creep charger the most according to claim 2, it is characterised in that: on described base plate
Being fixed with guide spiro rod, described gripper shoe is provided with the via being slidably matched with guide spiro rod, described fine setting set
The endoporus of cylinder is provided with screw thread and is coordinated with guide spiro rod by screw thread；One of them fine setting sleeve is provided with hexagonal
Head and this fine setting sleeve are finely tuned with other each and are connected by chain drive between sleeve, on each fine setting sleeve
Corresponding corresponding chain is fixed with sprocket wheel.
Concrete creep charger the most according to claim 3, it is characterised in that: described guiding spiral shell
Bar is arranged with fine setting sleeve one_to_one corresponding；It is provided with the second thrust between described fine setting sleeve end face and respective springs
Bearing, described second thrust bearing and spring are all set in outside corresponding guide spiro rod.
Concrete creep charger the most according to claim 4, it is characterised in that: described immersion is held
Pressure transducer it is provided with between device and gripper shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620336047.XU CN205506564U (en) | 2016-04-20 | 2016-04-20 | Concrete creep loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620336047.XU CN205506564U (en) | 2016-04-20 | 2016-04-20 | Concrete creep loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506564U true CN205506564U (en) | 2016-08-24 |
Family
ID=56706162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620336047.XU Expired - Fee Related CN205506564U (en) | 2016-04-20 | 2016-04-20 | Concrete creep loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205506564U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621253A (en) * | 2017-10-27 | 2018-01-23 | 天津建仪机械设备检测有限公司 | Concrete deformation detecting device |
| CN108709757A (en) * | 2018-06-21 | 2018-10-26 | 江苏远致达轨道交通发展有限公司 | A kind of rail traffic detection device |
| CN111579362A (en) * | 2019-02-19 | 2020-08-25 | 中铁建设集团建筑发展有限公司 | Reactive powder concrete deflection detection device and use method |
-
2016
- 2016-04-20 CN CN201620336047.XU patent/CN205506564U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621253A (en) * | 2017-10-27 | 2018-01-23 | 天津建仪机械设备检测有限公司 | Concrete deformation detecting device |
| CN108709757A (en) * | 2018-06-21 | 2018-10-26 | 江苏远致达轨道交通发展有限公司 | A kind of rail traffic detection device |
| CN111579362A (en) * | 2019-02-19 | 2020-08-25 | 中铁建设集团建筑发展有限公司 | Reactive powder concrete deflection detection device and use method |
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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: 20160824 Termination date: 20190420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |