CN105841665A - Installing and positioning device for surface strain gauge - Google Patents
Installing and positioning device for surface strain gauge Download PDFInfo
- Publication number
- CN105841665A CN105841665A CN201610195689.7A CN201610195689A CN105841665A CN 105841665 A CN105841665 A CN 105841665A CN 201610195689 A CN201610195689 A CN 201610195689A CN 105841665 A CN105841665 A CN 105841665A
- Authority
- CN
- China
- Prior art keywords
- bearing
- strain gauge
- bolt
- bearer
- hole
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000002372 labelling Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention provides an installing and positioning device for a surface strain gauge. The device comprises a first bearer and a second bearer. The center of the first bearer is provided with a first preformed hole. According to the embodiments of the invention, firstly, an installation die bar is arranged inside the first bearer and the second bearer, and the position of the first bearer and the position of the second bearer are marked on a to-be-measured object. After that, the installation die bar is removed, and then the first bearer and the second bearer are stuck or welded. The threaded end of the surface strain gauge penetrates into the first preformed hole, and the non-threaded end of the surface strain gauge is placed in a second preformed hole arranged in the opened second bearer. Then the second bearer is closed. Meanwhile, a bolt in a first bolt hole and a bolt in a second bolt hole are screwed in turn. Finally, a nut at the threaded end of the strain gauge is screwed. According to the technical scheme of the invention, by means of the opening-rotatable bearers, the stress of the strain gauge is reduced during the installation process. The damage to the strain gauge is reduced. Moreover, the problem in the prior art that bearers fall off can be solved. The strain gauge is prevented from being in contact with the current, so that the internal wire vibration is ensured. Therefore, a measurement result can be smoothly obtained.
Description
Technical field
The present invention relates to a kind of surface strain meter mounting and positioning device, this device is adapted to engineering monitoring or experiment
Field of measuring technique.
Background technology
Surface strain meter has been widely used in steel construction or the strain measurement of concrete in engineering and experiment, existing
When having surface strain meter to install, first by bearing paste or be welded to object under test surface, distance can by with strain
The cylinder model of meter adjoining dimensions determines, but owing to strain gauge is weak to tension-torsion, it is impossible to stand bigger external force,
Causing producing in installation process that strain gauge is damaged, bearing comes off or the situation such as reading is inaccurate, some monitors personnel
Strain gauge is directly welded to together with bearing object under test surface, and the electric current produced in welding process will directly
The internal vibratory string of failure strain meter, above variety of problems brings very big inconvenience to the use of surface strain meter.
Summary of the invention
The present invention is to install and use that strain gauge present in process is damaged, bearing takes off to solve surface strain meter
Fall the problem inaccurate with reading, a kind of surface strain meter erection support of invention.
The technical solution used in the present invention is a kind of surface strain meter mounting and positioning device, and this device includes first
Bearing the 1, second bearing 2, first is provided with the first preformed hole 3 in the middle of bearing 1, and the end of thread of strain gauge is from the
Passing in one preformed hole 3 and fixed by nut, the second bearing 2 is divided into upper and lower two parts and sets in centre
Second preformed hole 4, upper and lower two parts are connect by the axle 5 of end, and the top of bearing b2 is provided with the first bolt
Hole 6 and the second bolt hole 7, the bolt in the first bolt hole 6 is used for fixing strain gauge non-threaded end, the second spiral shell
Bolt in keyhole 7 screws in the groove of strain gauge, to limit strain gauge rotation and to move forward and backward, installs mould rod 9
It is the cylindrical member equivalently-sized with strain gauge, the determination of position when pasting for bearing or weld.
The implementation process of this device is as follows, and first installation mould rod 9 is arranged on first bearing the 1, second bearing 2
In, on object under test behind labelling the first bearing the 1, second bearing 2 position, unload installation mould rod 9, paste
Or welding first bearing the 1, second bearing 2；The end of thread of strain gauge is penetrated the first preformed hole 3, non-threaded
End puts into the second preformed hole 4 of the second bearing 2 opened；Close the second bearing 2 screw first successively
Bolt hole the 6, second bolt hole 7 inner bolt, finally screws the nut of the strain gauge end of thread.
Installing the size of mould rod 9 and the adjoining dimensions of strain gauge, its one end is provided with termination groove 8 and makes the second spiral shell
Bolt in keyhole 7 screws in, and the other end is provided with screw thread；Termination groove 8 is corresponding with the groove location of strain gauge.
The present invention uses rotatable opening bearing, reduces strain gauge stress in installation process, reduces strain gauge and damages
Bad, solve bearing and come off problem, it is to avoid strain gauge and galvanic contact, the internal vibratory string of protection, it is ensured that smooth
To measurement result.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is the first seat structure schematic diagram.
Fig. 3 is the second seat structure schematic diagram.
Fig. 4 is to install mould rod schematic diagram.
Wherein, 1-the first bearing, 2-the second bearing, 3-the first preformed hole, 4-the second preformed hole, 5-axle, 6-
First bolt hole, 7-the second bolt hole, 8-termination groove, 9-installs mould rod.
Detailed description of the invention
Illustrating the present invention in conjunction with accompanying drawing, accompanying drawing is schematic diagram, and this is described the most in a schematic way
Invention basic structure.
Fig. 1-4 illustrates the basic composition of the present invention, and the first bearing 1 is band preformed hole erection support, the second bearing
2 are divided into upper and lower two parts, and fix with axle and bolt respectively on both sides, during use, screw out the first bolt hole 6
Inner bolt opens the second bearing 2, put into installation mould rod 9, close the second bearing 2, screw in the first bolt hole 6,
Second bolt hole 7 inner bolt also adjusts installation mould rod position, makes the second bolt hole 7 inner bolt head and installs mould
Rod 9 termination groove overlaps, the more threaded one end of installation mould rod is penetrated the first bearing 1, locked with nut front and back.
The strain gauge fixed is swung on object under test, labelling the first bearing the 1, second bearing 2 position, depend on
Secondary the first bearing 1 end nut, second bolt hole the 7, first bolt hole 6 inner bolt of unclamping, takes out and installs mould rod,
The mark position that first bearing the 1, second bearing 2 is pasted or is welded on object under test.
Being penetrated strain gauge one end in the first preformed hole 3, the other end is placed in the second preformed hole 4, closes
Two bearings 2, screw in first bolt hole the 6, second bolt hole 7 inner bolt and adjust strain gauge position, making second
Bolt hole 7 inner bolt head overlaps with strain gauge termination groove, locked first preformed hole 3 internal strain-ga(u)ge unit one end
Nut front and back.
Claims (3)
1. a surface strain meter mounting and positioning device, it is characterised in that: this device include the first bearing (1),
Second bearing (2), is provided with the first preformed hole (3) in the middle of the first bearing (1), and the end of thread of strain gauge is from the
In one preformed hole (3) through and fixed by nut, the second bearing (2) be divided into upper and lower two parts and
Centre sets the second preformed hole (4), and upper and lower two parts are connect by the axle (5) of end, the top of bearing b2
Being provided with the first bolt hole (6) and the second bolt hole (7), the bolt in the first bolt hole (6) is used for fixing
Strain gauge non-threaded end, the bolt in the second bolt hole (7) screws in the groove of strain gauge, to limit strain gauge
Rotating and movable, installing mould rod (9) is the cylindrical member equivalently-sized with strain gauge, for bearing
The determination of position when pasting or weld.
A kind of surface strain meter mounting and positioning device the most according to claim 1, it is characterised in that: should
The implementation process of device is as follows, first will install mould rod (9) and be arranged on the first bearing (1), the second bearing (2)
In, on object under test behind labelling the first bearing (1), the second bearing (2) position, unload installation mould rod (9),
Paste or welding the first bearing (1), the second bearing (2)；The end of thread of strain gauge is penetrated the first preformed hole
(3), non-threaded end puts into second preformed hole (4) of the second bearing (2) opened；Close second
Seat (2) also screws the first bolt hole (6), the second bolt hole (7) inner bolt successively, finally screws strain
The nut of the meter end of thread.
A kind of surface strain meter mounting and positioning device the most according to claim 1, it is characterised in that: peace
The size of die-filling rod (9) and the adjoining dimensions of strain gauge, its one end is provided with termination groove (8) and makes the second spiral shell
Bolt in keyhole (7) screws in, and the other end is provided with screw thread；Termination groove (8) and the groove position of strain gauge
Put correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195689.7A CN105841665A (en) | 2016-03-30 | 2016-03-30 | Installing and positioning device for surface strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195689.7A CN105841665A (en) | 2016-03-30 | 2016-03-30 | Installing and positioning device for surface strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105841665A true CN105841665A (en) | 2016-08-10 |
Family
ID=56596371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195689.7A Pending CN105841665A (en) | 2016-03-30 | 2016-03-30 | Installing and positioning device for surface strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105841665A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339122A (en) * | 2018-10-29 | 2019-02-15 | 佛山科学技术学院 | A kind of strain gauge built-in fitting for preventing from falling off |
| CN112964221A (en) * | 2021-02-08 | 2021-06-15 | 中国矿业大学(北京) | Mounting and positioning method for surface strain gauge of steel pipe column in underground engineering structure construction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202141447U (en) * | 2011-07-21 | 2012-02-08 | 中铁十一局集团有限公司 | Surface strain gauge mounting support and protecting device combination for steel structure |
| CN203100722U (en) * | 2012-12-26 | 2013-07-31 | 重庆凯拓科技发展有限公司 | Fixed support seat for surface strain-type sensor |
| CN203177841U (en) * | 2012-12-26 | 2013-09-04 | 重庆凯拓科技发展有限公司 | Split-type installation base provided with boss and used for surface strain sensor |
| US20140088594A1 (en) * | 2011-03-25 | 2014-03-27 | Orthopaedic International, Inc. | Instrument for locating distal screw holes in intramedullary nails |
| CN204439059U (en) * | 2015-03-12 | 2015-07-01 | 河海大学 | A kind of surface strain counter device of improvement |
| CN205619919U (en) * | 2016-03-30 | 2016-10-05 | 北京工业大学 | Surface strain meter installation positioner |
-
2016
- 2016-03-30 CN CN201610195689.7A patent/CN105841665A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140088594A1 (en) * | 2011-03-25 | 2014-03-27 | Orthopaedic International, Inc. | Instrument for locating distal screw holes in intramedullary nails |
| CN202141447U (en) * | 2011-07-21 | 2012-02-08 | 中铁十一局集团有限公司 | Surface strain gauge mounting support and protecting device combination for steel structure |
| CN203100722U (en) * | 2012-12-26 | 2013-07-31 | 重庆凯拓科技发展有限公司 | Fixed support seat for surface strain-type sensor |
| CN203177841U (en) * | 2012-12-26 | 2013-09-04 | 重庆凯拓科技发展有限公司 | Split-type installation base provided with boss and used for surface strain sensor |
| CN204439059U (en) * | 2015-03-12 | 2015-07-01 | 河海大学 | A kind of surface strain counter device of improvement |
| CN205619919U (en) * | 2016-03-30 | 2016-10-05 | 北京工业大学 | Surface strain meter installation positioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339122A (en) * | 2018-10-29 | 2019-02-15 | 佛山科学技术学院 | A kind of strain gauge built-in fitting for preventing from falling off |
| CN112964221A (en) * | 2021-02-08 | 2021-06-15 | 中国矿业大学(北京) | Mounting and positioning method for surface strain gauge of steel pipe column in underground engineering structure construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Facai Inventor after: Li Lingyi Inventor after: Xiao Shuangquan Inventor after: Song Haishan Inventor after: Hu Min Inventor after: Hu Shiwei Inventor after: Zhao Shujie Inventor after: Zhang Manhua Inventor after: Deng Hongliang Inventor after: Liu Yuansong Inventor after: Gao Wenxue Inventor after: Wang Lintai Inventor after: Wang Weijun Inventor after: Zhu Anfeng Inventor before: Zhang Facai Inventor before: Zhao Shujie Inventor before: Deng Hongliang Inventor before: Zhang Manhua Inventor before: Gao Wenxue Inventor before: Liu Yuansong |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171019 Address after: 100068 No. 163 South Fourth Ring Road, Beijing Applicant after: Beijing municipal administration road and bridge limited company Applicant after: Beijing University of Technology Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Applicant before: Beijing University of Technology Applicant before: Beijing municipal administration road and bridge limited company |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |